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To</title> <meta name="description" content="Search results for: Hing Kwan To"> <meta name="keywords" content="Hing Kwan To"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Hing Kwan To"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 64</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Hing Kwan To</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">64</span> Students’ View on Sexuality Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hoi%20Nga%20Ng">Hoi Nga Ng</a>, <a href="https://publications.waset.org/abstracts/search?q=Kam%20Weng%20Boey"> Kam Weng Boey</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi%20Wai%20Kwan"> Chi Wai Kwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hing%20Kwan%20To"> Hing Kwan To</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effectiveness of school-based sexuality education (SBSE) depends largely on adolescents’ attitudes towards sexuality and SBSE. This study examined factors (demographic characteristics, religiosity, and spirituality) associated with students’ sexual attitudes and their views on SBSE. Data were collected via a questionnaire through convenience sampling from three secondary schools. A total of 818 students participated in the study. Male students were generally more permissive in sexual attitudes. Female students were specifically more liberal in attitudes towards abortion, contraception, infection of sexually transmitted diseases, and homosexuality. Higher levels of religiosity and spirituality were negatively associated with permissive sexual attitudes. As in the West, students showed positive attitudes towards SBSE, which provided a fertile ground for SBSE. However, female gender, conservative sexual attitudes, religiosity, and spirituality were positively related to attitudes towards SBSE, which were incongruent with what was found in Western studies. Implementation of SBSE needs to consider factors specific to the local cultural setting. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=religiosity" title="religiosity">religiosity</a>, <a href="https://publications.waset.org/abstracts/search?q=school-based%20sexuality%20education" title=" school-based sexuality education"> school-based sexuality education</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20school" title=" secondary school"> secondary school</a>, <a href="https://publications.waset.org/abstracts/search?q=spirituality" title=" spirituality"> spirituality</a> </p> <a href="https://publications.waset.org/abstracts/147312/students-view-on-sexuality-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147312.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">128</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">63</span> Genres as Time Machines: Hong Kong Cinema's Ways of Historicizing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chin%20Pang%20Lei">Chin Pang Lei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Colonized by the UK, handed over to China, and now as a global financial city, Hong Kong’s history is never easy to write under the dominant discourses of colonialism, nationalism and globalization. In this plight, cinema, regarded as Hong Kong’s most representative cultural form, is used for writing, exploring and questioning the local history of the city. In their writing of the past, Hong Kong directors such as Wong Kar-wai, Stanley Kwan and Tsui Hark have demonstrated alternative ways of historicizing Hong Kong. Despite their interests in different periods of time (Wong is obsessed with the 1960s; Kwan is attracted to the 1930s; Tsui often goes back to the early 20th century), all these directors use genres as their time machines to revisit the past. As a popular cultural form, genres always come with a series of ideologies which define our lives and explain the society. Hence, in a changing society, genres change and complicate themselves with different packages of meanings. Genres function as open-ended and corrigible schemata which can contain multiple themes and various meanings. In Hong Kong, genres, often seen as highly commercial and overly market-oriented, are opportunities for alternative history writing and the exploration of local identities. This paper examines how these Hong Kong directors use the popular forms of genres, such as melodrama, martial art and gangster films, to present the past, and how the stories of the fictional characters, such as prostitutes, martial artists and jobless hooligans mobilize imagination of history. These texts show that genre is a crucial platform for Hong Kong’s post-colonial self-writing. Via genres, history in these films is against official and canonical history as well as grand narrative. Genres as time machines articulate a voice for Hong Kong. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hong%20Kong%20cinema" title="Hong Kong cinema">Hong Kong cinema</a>, <a href="https://publications.waset.org/abstracts/search?q=genre" title=" genre"> genre</a>, <a href="https://publications.waset.org/abstracts/search?q=historicizing" title=" historicizing"> historicizing</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20history" title=" local history"> local history</a>, <a href="https://publications.waset.org/abstracts/search?q=Wong%20Kar-Wai" title=" Wong Kar-Wai"> Wong Kar-Wai</a> </p> <a href="https://publications.waset.org/abstracts/86950/genres-as-time-machines-hong-kong-cinemas-ways-of-historicizing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86950.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">366</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">62</span> Evolution of Floating Photovoltaic System Technology and Future Prospect</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young-Kwan%20Choi">Young-Kwan Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Han-Sang%20Jeong"> Han-Sang Jeong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Floating photovoltaic system is a technology that combines photovoltaic power generation with floating structure. However, since floating technology has not been utilized in photovoltaic generation, there are no standardized criteria. It is separately developed and used by different installation bodies. This paper aims to discuss the change of floating photovoltaic system technology based on examples of floating photovoltaic systems installed in Korea. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=floating%20photovoltaic%20system" title="floating photovoltaic system">floating photovoltaic system</a>, <a href="https://publications.waset.org/abstracts/search?q=floating%20PV%20installation" title=" floating PV installation"> floating PV installation</a>, <a href="https://publications.waset.org/abstracts/search?q=ocean%20floating%20photovoltaic%20system" title=" ocean floating photovoltaic system"> ocean floating photovoltaic system</a>, <a href="https://publications.waset.org/abstracts/search?q=tracking%20type%20floating%20photovoltaic%20system" title=" tracking type floating photovoltaic system"> tracking type floating photovoltaic system</a> </p> <a href="https://publications.waset.org/abstracts/37392/evolution-of-floating-photovoltaic-system-technology-and-future-prospect" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37392.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">560</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">61</span> Relations of Progression in Cognitive Decline with Initial EEG Resting-State Functional Network in Mild Cognitive Impairment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chia-Feng%20Lu">Chia-Feng Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuh-Jen%20Wang"> Yuh-Jen Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Te%20Wu"> Yu-Te Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Sui-Hing%20Yan"> Sui-Hing Yan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed at investigating whether the functional brain networks constructed using the initial EEG (obtained when patients first visited hospital) can be correlated with the progression of cognitive decline calculated as the changes of mini-mental state examination (MMSE) scores between the latest and initial examinations. We integrated the time–frequency cross mutual information (TFCMI) method to estimate the EEG functional connectivity between cortical regions, and the network analysis based on graph theory to investigate the organization of functional networks in aMCI. Our finding suggested that higher integrated functional network with sufficient connection strengths, dense connection between local regions, and high network efficiency in processing information at the initial stage may result in a better prognosis of the subsequent cognitive functions for aMCI. In conclusion, the functional connectivity can be a useful biomarker to assist in prediction of cognitive declines in aMCI. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognitive%20decline" title="cognitive decline">cognitive decline</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20connectivity" title=" functional connectivity"> functional connectivity</a>, <a href="https://publications.waset.org/abstracts/search?q=MCI" title=" MCI"> MCI</a>, <a href="https://publications.waset.org/abstracts/search?q=MMSE" title=" MMSE"> MMSE</a> </p> <a href="https://publications.waset.org/abstracts/13287/relations-of-progression-in-cognitive-decline-with-initial-eeg-resting-state-functional-network-in-mild-cognitive-impairment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13287.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">383</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">60</span> Ultrasonic Assisted Growth of ZnO Nanorods at Low Temperature </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khairul%20Anuar">Khairul Anuar</a>, <a href="https://publications.waset.org/abstracts/search?q=Wai%20Yee%20Lee"> Wai Yee Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20C.%20S.%20Bien"> Daniel C. S. Bien</a>, <a href="https://publications.waset.org/abstracts/search?q=Hing%20Wah%20Lee"> Hing Wah Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Ishak%20Azid"> Ishak Azid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the effect of ultrasonic treatment on ZnO nutrient solution prior to the growth of ZnO nanorods, where the seed layer is annealed at 50 and 100°C. The results show that the ZnO nanorods are successfully grown on the sample annealed at 50°C in the sonicated ZnO nutrient solution with a length and a diameter of approximately 8.025 µm and 92 nm, respectively. However, no ZnO nanorods structures are observed for the sample annealed at 50°C and grown in unsonicated ZnO nutrient solution. Meanwhile, the ZnO nanorods for the sample annealed at 100°C are successfully grown in both sonicated and unsonicated ZnO nutrient solutions. The length and diameter of the nanorods for the sample grown in the sonicated solution are 8.681 µm and 1.033 nm, whereas those for the sample grown in the unsonicated solution are 7.613 µm and 1.040 nm. This result shows that with ultrasonic treatment, the length of the ZnO nanorods increases by 14%, whereas their diameter is reduced by 0.7%, resulting in an increase of aspect ratio from 7:1 to 8:1. Electroconductivity and pH sensors are used to measure the conductivity and acidity level of the sonicated and unsonicated solutions, respectively. The result shows that the conductivity increases from 87 mS/cm to 10.4 mS/cm, whereas the solution pH decreases from 6.52 to 6.13 for the sonicated and unsonicated solutions, respectively. The increase in solution conductivity and acidity level elucidates the higher amount of zinc nutrient in the sonicated solution than in the unsonicated solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultrasonic%20treatment" title="ultrasonic treatment">ultrasonic treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20annealing%20temperature" title=" low annealing temperature"> low annealing temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=ZnO%20nanostructure" title=" ZnO nanostructure"> ZnO nanostructure</a>, <a href="https://publications.waset.org/abstracts/search?q=nanorods" title=" nanorods"> nanorods</a> </p> <a href="https://publications.waset.org/abstracts/10106/ultrasonic-assisted-growth-of-zno-nanorods-at-low-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10106.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">369</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">59</span> Efficiency Enhancement of Blue OLED by Incorporating Ag Nanoplate Layers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=So-Jeong%20Kim">So-Jeong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Nak-Kwan%20Chung"> Nak-Kwan Chung</a>, <a href="https://publications.waset.org/abstracts/search?q=Jintae%20Kim"> Jintae Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Juyoung%20Yun"> Juyoung Yun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The metal nanoplates are potentially used for electroluminescence enhancement of OLEDs owing to the localized surface plasmon resonance. In our study, enhanced electroluminescence in blue organic light-emitting diodes is demonstrated by incorporating silver nanoplates into poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid. To have surface plasmon resonance absorption peak matching with photoluminescent (PL) peak of blue, Ag nanoplates with triangular shape are used in this study. Finally, about 30 % enhancement in electroluminescence intensity and current efficiency for blue emission devices is obtained via Ag nanoplates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=efficiency%20enhancement" title="efficiency enhancement">efficiency enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoplate" title=" nanoplate"> nanoplate</a>, <a href="https://publications.waset.org/abstracts/search?q=OLED" title=" OLED"> OLED</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20plasmon%20resonance" title=" surface plasmon resonance"> surface plasmon resonance</a> </p> <a href="https://publications.waset.org/abstracts/64669/efficiency-enhancement-of-blue-oled-by-incorporating-ag-nanoplate-layers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64669.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">342</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">58</span> A Study on Analysis of Magnetic Field in Induction Generator for Small Francis Turbine Generator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young-Kwan%20Choi">Young-Kwan Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Han-Sang%20Jeong"> Han-Sang Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Yeon-Ho%20Ok"> Yeon-Ho Ok</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Ho%20Choi"> Jae-Ho Choi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study is to verify validity of design by testing output of induction generator through finite element analysis before manufacture of induction generator designed. Characteristics in the operating domain of induction generator can be understood through analysis of magnetic field according to load (rotational speed) of induction generator. Characteristics of induction generator such as induced voltage, current, torque, magnetic flux density (magnetic flux saturation), and loss can be predicted by analysis of magnetic field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20analysis" title="electromagnetic analysis">electromagnetic analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20generator" title=" induction generator"> induction generator</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20hydro%20power%20generator" title=" small hydro power generator"> small hydro power generator</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20francis%20turbine%20generator" title=" small francis turbine generator"> small francis turbine generator</a> </p> <a href="https://publications.waset.org/abstracts/32296/a-study-on-analysis-of-magnetic-field-in-induction-generator-for-small-francis-turbine-generator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32296.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">1475</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">57</span> Complex Event Processing System Based on the Extended ECA Rule</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwan%20Hee%20Han">Kwan Hee Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Woo%20Lee"> Jun Woo Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung%20Moon%20Bae"> Sung Moon Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=Twae%20Kyung%20Park"> Twae Kyung Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> ECA (Event-Condition-Action) languages are largely adopted for event processing since they are an intuitive and powerful paradigm for programming reactive systems. However, there are some limitations about ECA rules for processing of complex events such as coupling of event producer and consumer. The objective of this paper is to propose an ECA rule pattern to improve the current limitations of ECA rule, and to develop a prototype system. In this paper, conventional ECA rule is separated into 3 parts and each part is extended to meet the requirements of CEP. Finally, event processing logic is established by combining the relevant elements of 3 parts. The usability of proposed extended ECA rule is validated by a test scenario in this study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complex%20event%20processing" title="complex event processing">complex event processing</a>, <a href="https://publications.waset.org/abstracts/search?q=ECA%20rule" title=" ECA rule"> ECA rule</a>, <a href="https://publications.waset.org/abstracts/search?q=Event%20processing%20system" title=" Event processing system"> Event processing system</a>, <a href="https://publications.waset.org/abstracts/search?q=event-driven%20architecture" title=" event-driven architecture"> event-driven architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things" title=" internet of things "> internet of things </a> </p> <a href="https://publications.waset.org/abstracts/12595/complex-event-processing-system-based-on-the-extended-eca-rule" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12595.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">530</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">56</span> Altered Network Organization in Mild Alzheimer's Disease Compared to Mild Cognitive Impairment Using Resting-State EEG</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chia-Feng%20Lu">Chia-Feng Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuh-Jen%20Wang"> Yuh-Jen Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shin%20Teng"> Shin Teng</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Te%20Wu"> Yu-Te Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Sui-Hing%20Yan"> Sui-Hing Yan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Brain functional networks based on resting-state EEG data were compared between patients with mild Alzheimer’s disease (mAD) and matched patients with amnestic subtype of mild cognitive impairment (aMCI). We integrated the time–frequency cross mutual information (TFCMI) method to estimate the EEG functional connectivity between cortical regions and the network analysis based on graph theory to further investigate the alterations of functional networks in mAD compared with aMCI group. We aimed at investigating the changes of network integrity, local clustering, information processing efficiency, and fault tolerance in mAD brain networks for different frequency bands based on several topological properties, including degree, strength, clustering coefficient, shortest path length, and efficiency. Results showed that the disruptions of network integrity and reductions of network efficiency in mAD characterized by lower degree, decreased clustering coefficient, higher shortest path length, and reduced global and local efficiencies in the delta, theta, beta2, and gamma bands were evident. The significant changes in network organization can be used in assisting discrimination of mAD from aMCI in clinical. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EEG" title="EEG">EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20connectivity" title=" functional connectivity"> functional connectivity</a>, <a href="https://publications.waset.org/abstracts/search?q=graph%20theory" title=" graph theory"> graph theory</a>, <a href="https://publications.waset.org/abstracts/search?q=TFCMI" title=" TFCMI"> TFCMI</a> </p> <a href="https://publications.waset.org/abstracts/13268/altered-network-organization-in-mild-alzheimers-disease-compared-to-mild-cognitive-impairment-using-resting-state-eeg" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13268.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">431</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">55</span> A Study on Energy Efficiency of Vertical Water Treatment System with DC Power Supply</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young-Kwan%20Choi">Young-Kwan Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Gang-Wook%20Shin"> Gang-Wook Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung-Taek%20Hong"> Sung-Taek Hong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water supply system consumes large amount of power load during water treatment and transportation of purified water. Many energy conserving high efficiency materials such as DC motor and LED light have recently been introduced to water supply system for energy conservation. This paper performed empirical analysis on BLDC, AC motors, and comparatively analyzed the change in power according to DC power supply ratio in order to conserve energy of a next-generation water treatment system called vertical water treatment system. In addition, a DC distribution system linked with photovoltaic generation was simulated to analyze the energy conserving effect of DC load. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vertical%20water%20treatment%20system" title="vertical water treatment system">vertical water treatment system</a>, <a href="https://publications.waset.org/abstracts/search?q=DC%20power%20supply" title=" DC power supply"> DC power supply</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=BLDC" title=" BLDC"> BLDC</a> </p> <a href="https://publications.waset.org/abstracts/4300/a-study-on-energy-efficiency-of-vertical-water-treatment-system-with-dc-power-supply" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4300.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">503</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">54</span> Multifunctional Polydopamine-Silver-Polydopamine Nanofilm With Applications in Digital Microfluidics and SERS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yilei%20Xue">Yilei Xue</a>, <a href="https://publications.waset.org/abstracts/search?q=Yat-Hing%20Ham"> Yat-Hing Ham</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenting%20Qiu"> Wenting Qiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Wan%20Chan"> Wan Chan</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefan%20Nagl"> Stefan Nagl</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polydopamine (PDA) is a popular material in biological and medical applications due to its excellent biocompatibility, outstanding physicochemical properties, and facile fabrication. In this project, a new sandwich-structured PDA and silver (Ag) hybrid material named PDA-Ag-PDA was synthesized and characterized layer-by-layer, where silver nanoparticles (Ag NPs) are wrapped in PDA coatings, using SEM, AFM, 3D surface metrology, and contact angle meter. The silver loading capacity is positively proportional to the roughness value of the initial PDA film. This designed film was subsequently integrated within a digital microfluidic (DMF) platform coupling with an oxygen sensor layer for on-chip antibacterial assay. The concentration of E. coli was quantified on DMF by real-time monitoring oxygen consumption during E. coli growth with the optical oxygen sensor layer. The PDA-Ag-PDA coating shows an 99.9% reduction in E. coli population under non-nutritive condition with 1-hour treatment and has a strong growth inhibition of E. coliin nutrient LB broth as well. Furthermore, PDA-Ag-PDA film maintaining a low cytotoxicity effect to human cells. After treating with PDA-Ag-PDA film for 24 hours, 82% HEK 293 and 86% HeLa cells were viable. The SERS enhancement factor of PDA-Ag-PDA is estimated to be 1.9 × 104 using Rhodamine 6G (R6G). Multifunctional PDA-Ag-PDA coating provides an alternative platform to conjugate biomolecules and perform biological applications on DMF, in particular, for the adhesive protein and cell study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polydopamine" title="polydopamine">polydopamine</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20nanoparticles" title=" silver nanoparticles"> silver nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20microfluidic" title=" digital microfluidic"> digital microfluidic</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20sensor" title=" optical sensor"> optical sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20assay" title=" antimicrobial assay"> antimicrobial assay</a>, <a href="https://publications.waset.org/abstracts/search?q=SERS" title=" SERS"> SERS</a> </p> <a href="https://publications.waset.org/abstracts/153319/multifunctional-polydopamine-silver-polydopamine-nanofilm-with-applications-in-digital-microfluidics-and-sers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153319.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">93</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">53</span> Incorporating Ground Sand in Production of Self-Consolidating Concrete to Decrease High Paste Volume and Improve Passing Ability of Self-Consolidating Concrete</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20K.%20Ling">S. K. Ling</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20K.%20H.%20Kwan"> A. K. H. Kwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The production of SCC (self-consolidating concrete) generally requires a fairy high paste volume, ranging from 35% to 40% of the total concrete volume. Such high paste volume would lead to low dimensional stability and high carbon footprint. Direct lowering the paste volume would deteriorate the performance of SCC, especially the passing ability. It is often observed that at narrow gap of congested reinforcements, the paste often flows in the front leaving the coarse aggregate particle behind to block the subsequent flow of concrete. Herein, it is suggested to increase the mortar volume through incorporating ground sand with a mean size of 0.3 mm while keeping the paste volume small. Trial concrete mixes with paste volumes of 30% and 34% and different ground sand contents have been tested to demonstrate how the paste volume can be lowered without sacrificing the passing ability. Overall, the results demonstrated that the addition of ground sand would enable the achievement of high passing ability at a relatively small paste volume. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ground%20sand" title="ground sand">ground sand</a>, <a href="https://publications.waset.org/abstracts/search?q=mortar%20volume" title=" mortar volume"> mortar volume</a>, <a href="https://publications.waset.org/abstracts/search?q=paste%20volume" title=" paste volume"> paste volume</a>, <a href="https://publications.waset.org/abstracts/search?q=self-consolidating%20concrete" title=" self-consolidating concrete"> self-consolidating concrete</a> </p> <a href="https://publications.waset.org/abstracts/50632/incorporating-ground-sand-in-production-of-self-consolidating-concrete-to-decrease-high-paste-volume-and-improve-passing-ability-of-self-consolidating-concrete" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50632.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">279</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">52</span> Fabrication and Properties of Al2O3/Si Quantum Well-Structured Silicon Solar Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwang-Ho%20Kim">Kwang-Ho Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan-Hong%20Min"> Kwan-Hong Min</a>, <a href="https://publications.waset.org/abstracts/search?q=Pyungwoo%20Jang"> Pyungwoo Jang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chisup%20Jung"> Chisup Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyu%20Seomoon"> Kyu Seomoon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> By restricting the dimensions of silicon to less than Bohr radius of bulk crystalline silicon (∼5 nm), quantum confinement causes its effective bandgap to increase. Therefore, silicon quantum wells (QWs) using these quantum phenomena could be a good candidate to achieve high performance silicon solar cells. The Al2O3/Si QW structures were fabricated by using the successive deposition technique, as a quantum confinement device to increase the effective energy bandgap and passivation effect in Si surface for the 3rd generation solar cell applications. In Si/Al2O3 QWs, the thicknesses of Si layers and Al2O3 layers were varied between 1 to 5 nm, respectively. The roughness of deposited Si on Al2O3 was less than 4 Å in the thickness of 2 nm. By using the Al2O3/Si QW structures on Si surfaces, the lifetime measured by u-PCD technique increased as a result of passivated surface effects. The discussion about the other properties such as electrical and optical properties of the QWs structures as well as the fabricated solar cells will be presented in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al2O3%2FSi%20quantum%20well" title="Al2O3/Si quantum well">Al2O3/Si quantum well</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20confinement" title=" quantum confinement"> quantum confinement</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cells" title=" solar cells"> solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=third%20generation" title=" third generation"> third generation</a>, <a href="https://publications.waset.org/abstracts/search?q=successive%20deposition%20technique" title=" successive deposition technique"> successive deposition technique</a> </p> <a href="https://publications.waset.org/abstracts/6308/fabrication-and-properties-of-al2o3si-quantum-well-structured-silicon-solar-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6308.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">340</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">51</span> An Activatable Theranostic for Targeted Cancer Therapy and Imaging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sankarprasad%20Bhuniya">Sankarprasad Bhuniya</a>, <a href="https://publications.waset.org/abstracts/search?q=Sukhendu%20Maiti"> Sukhendu Maiti</a>, <a href="https://publications.waset.org/abstracts/search?q=Eun-Joong%20Kim"> Eun-Joong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyunseung%20Lee"> Hyunseung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20L.%20Sessler"> Jonathan L. Sessler</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan%20Soo%20Hong"> Kwan Soo Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong%20Seung%20Kim"> Jong Seung Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A new theranostic strategy is described. It is based on the use of an “all in one” prodrug, namely the biotinylated piperazine-rhodol conjugate 4a. This conjugate, which incorporates the anticancer drug SN-38, undergoes self-immolative cleavage when exposed to biological thiols. This leads to the tumor-targeted release of the active SN-38 payload along with fluorophore 1a. This release is made selective as the result of the biotin functionality. Fluorophore 1a is 32-fold more fluorescent than prodrug 4a. It permits the delivery and release of the SN-38 payload to be monitored easily in vitro and in vivo, as inferred from cell studies and ex vivo analyses of mice xenografts derived HeLa cells, respectively. Prodrug 4a also displays anticancer activity in the HeLa cell murine xenograft tumor model. On the basis of these findings we suggest that the present strategy, which combines within a single agent the key functions of targeting, release, imaging, and treatment, may have a role to play in cancer diagnosis and therapy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=theranostic" title="theranostic">theranostic</a>, <a href="https://publications.waset.org/abstracts/search?q=prodrug" title=" prodrug"> prodrug</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer%20therapy" title=" cancer therapy"> cancer therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorescence" title=" fluorescence"> fluorescence</a> </p> <a href="https://publications.waset.org/abstracts/16859/an-activatable-theranostic-for-targeted-cancer-therapy-and-imaging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16859.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">537</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">50</span> Perception of Inclusion in Higher Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hoi%20Nga%20Ng">Hoi Nga Ng</a>, <a href="https://publications.waset.org/abstracts/search?q=Kam%20Weng%20Boey"> Kam Weng Boey</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi%20Wai%20Kwan"> Chi Wai Kwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Supporters of Inclusive education proclaim that all students, regardless of disabilities or special educational needs (SEN), have the right to study in the normal school setting. It is asserted that students with SEN would benefit in academic performance and psychosocial adjustment via participation in common learning activities within the ordinary school system. When more and more students of SEN completed their early schooling, institute of higher education become the setting where students of SEN continue their learning. This study aimed to investigate the school well-being, social relationship, and academic self-concept of students of SEN in higher education. The Perception of Inclusion Questionnaire (PIQ) was used as the measuring instruments. PIQ was validated and incorporated in a questionnaire designed for online survey. Participation was voluntary and anonymous. A total of 90 students with SEN and 457 students without SEN responded to the online survey. Results showed no significant differences in school well-being and social relationship between students with and without SEN, but students with SEN, particularly those with learning and development impairment and those with mental illness and emotional problems, were significantly poorer in academic self-concept. Implications of the findings were discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ccademic%20self-concept" title="ccademic self-concept">ccademic self-concept</a>, <a href="https://publications.waset.org/abstracts/search?q=school%20well-being" title=" school well-being"> school well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20relationship" title=" social relationship"> social relationship</a>, <a href="https://publications.waset.org/abstracts/search?q=special%20educational%20needs" title=" special educational needs"> special educational needs</a> </p> <a href="https://publications.waset.org/abstracts/147318/perception-of-inclusion-in-higher-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147318.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">184</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">49</span> Design of Quality Assessment System for On-Orbit 3D Printing Based on 3D Reconstruction Technology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jianning%20Tang">Jianning Tang</a>, <a href="https://publications.waset.org/abstracts/search?q=Trevor%20Hocksun%20Kwan"> Trevor Hocksun Kwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaofeng%20Wu"> Xiaofeng Wu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the increasing demand for space use in multiple sectors (navigation, telecommunication, imagery, etc.), the deployment and maintenance demand of satellites are growing. Considering the high launching cost and the restrictions on weight and size of the payload when using launch vehicle, the technique of on-orbit manufacturing has obtained more attention because of its significant potential to support future space missions. 3D printing is the most promising manufacturing technology that could be applied in space. However, due to the lack of autonomous quality assessment, the operation of conventional 3D printers still relies on human presence to supervise the printing process. This paper is proposed to develop an automatic 3D reconstruction system aiming at detecting failures on the 3D printed objects through application of point cloud technology. Based on the data obtained from the point cloud, the 3D printer could locate the failure and repair the failure. The system will increase automation and provide 3D printing with more feasibilities for space use without human interference. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20printing" title="3D printing">3D printing</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20assessment" title=" quality assessment"> quality assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=point%20cloud" title=" point cloud"> point cloud</a>, <a href="https://publications.waset.org/abstracts/search?q=on-orbit%20manufacturing" title=" on-orbit manufacturing"> on-orbit manufacturing</a> </p> <a href="https://publications.waset.org/abstracts/149470/design-of-quality-assessment-system-for-on-orbit-3d-printing-based-on-3d-reconstruction-technology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149470.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">120</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">48</span> An Activatable Prodrug for the Treatment of Metastatic Tumors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eun-Joong%20Kim">Eun-Joong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sankarprasad%20Bhuniya"> Sankarprasad Bhuniya</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyunseung%20Lee"> Hyunseung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyun%20Min%20Kim"> Hyun Min Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaejoon%20Cheong"> Chaejoon Cheong</a>, <a href="https://publications.waset.org/abstracts/search?q=Su-khendu%20Maiti"> Su-khendu Maiti</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan%20Soo%20Hong"> Kwan Soo Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong%20Seung%20Kim"> Jong Seung Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metastatic cancers have historically been difficult to treat. However, metastatic tumors have been found to have high levels of reactive oxygen species such as hydrogen peroxide (H2O2), supporting the hypothesis that a prodrug could be activated by intracellular H2O2 and lead to a potential anti-metastatic therapy. In this study, prodrug 7 was designed to be activated by H2O2-mediated boronate oxidation, resulting in activation of the fluorophore for detection and release of the therapeutic agent, SN-38. Drug release from prodrug 7 was investigated by monitoring fluorescence after addition of H2O2 to the cancer cells. Prodrug 7 activated by H2O2 selectively inhibited tumor cell growth. Furthermore, intratracheally administered prodrug 7 showed effective anti-tumor activity in a mouse model of metastatic lung disease. Thus, this H2O2-responsive prodrug has therapeutic potential as a novel treatment for metastatic cancer via cellular imaging with fluorescence as well as selective release of the anti-cancer drug, SN-38. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20peroxide" title="hydrogen peroxide">hydrogen peroxide</a>, <a href="https://publications.waset.org/abstracts/search?q=prodrug" title=" prodrug"> prodrug</a>, <a href="https://publications.waset.org/abstracts/search?q=metastatic%20tumors" title=" metastatic tumors"> metastatic tumors</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorescence" title=" fluorescence"> fluorescence</a> </p> <a href="https://publications.waset.org/abstracts/16855/an-activatable-prodrug-for-the-treatment-of-metastatic-tumors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16855.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">453</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">47</span> Main Factor That Causes the Instabilities of the Earth’s Rotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jin-Sim">Jin-Sim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan-U%20Kim"> Kwan-U Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ryong-Jin%20Jang"> Ryong-Jin Jang</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung-Duk%20Kim"> Sung-Duk Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Earth rotation is one of astronomical phenomena without which it is impossible to think of human life. That is why the investigation of the Earth's rotation is very important, and it has a long history of study. The invention of quartz clocks in the 1930s, atomic time in the 1950s, and the introduction of modern technology into astronomic observation in recent years resulted in rapid development of the study of Earth’s rotation. The theory of the Earth's rotation, however, has not been up to the high level of astronomic observation due to the limitation of time. As a typical example, we can take the problems that cover the instabilities of the Earth’s rotation, proved completely by the astronomic observations as well as polar motion, the precession and nutation of the Earth's rotation axis, which have not been described in a single equation in a quantificational way from the unique law of Earth rotation. In particular, at present the problem of what is the main factor causing the instabilities of the Earth rotation has not been solved clearly in quantificational ways yet. Therefore, this paper gives quantificational proof that the main factor that causes the instabilities of the Earth's rotation is the moment of external force other than variations in the relative atmospheric angular momentum due to the time limitation and under some assumptions or the moment of inertia of the Earth’s body. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20angular%20momentum" title="atmospheric angular momentum">atmospheric angular momentum</a>, <a href="https://publications.waset.org/abstracts/search?q=instabilities%20of%20the%20earth%E2%80%99s%20rotation" title=" instabilities of the earth’s rotation"> instabilities of the earth’s rotation</a>, <a href="https://publications.waset.org/abstracts/search?q=law%20of%20the%20earth%E2%80%99s%20rotation%20change" title=" law of the earth’s rotation change"> law of the earth’s rotation change</a>, <a href="https://publications.waset.org/abstracts/search?q=moment%20of%20inertia%20of%20the%20earth" title=" moment of inertia of the earth"> moment of inertia of the earth</a> </p> <a href="https://publications.waset.org/abstracts/182768/main-factor-that-causes-the-instabilities-of-the-earths-rotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182768.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> Dimensional-Controlled Functional Gold Nanoparticles and Zinc Oxide Nanorods for Solar Water Splitting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kok%20Hong%20Tan">Kok Hong Tan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hing%20Wah%20Lee"> Hing Wah Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jhih-Wei%20Chen"> Jhih-Wei Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang%20Fu%20Dee"> Chang Fu Dee</a>, <a href="https://publications.waset.org/abstracts/search?q=Chung-Lin%20Wu"> Chung-Lin Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Siang-Piao%20Chai"> Siang-Piao Chai</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Sea%20Chang"> Wei Sea Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Semiconductor photocatalyst is known as one of the key roles in developing clean and sustainable energy. However, most of the semiconductor only possesses photoactivity within the UV light region, and hence, decreases the overall photocatalyst efficiency. Generally, the overall effectiveness of the photocatalyst activity is determined by three critical steps: (i) light absorption efficiency and photoexcitation electron-hole pair generation, (ii) separation and migration of charge carriers to the surface of the photocatalyst, and (iii) surface reaction of the carriers with its environment. Much effort has been invested on optimizing hierarchical nanostructures of semiconductors for efficient photoactivity due to the fact that the visible light absorption capability and occurrence of the chemical reactions mostly depend on the dimension of photocatalysts. In this work, we incorporated zero-dimensional (0D) gold nanoparticles (AuNPs) and one dimensional (1D) Zinc Oxide (ZnO) nanorods (NRs) onto strontium titanate (STO) for efficient visible light absorption, charge transfer, and separation. We demonstrate that the electrical and optical properties of the photocatalyst can be tuned by controlling the dimensional structures of AuNPs and ZnO NRs. We found that smaller AuNPs sizes exhibited higher photoactivity because of Fermi level shifting toward the conductive band of STO, STO band gap narrowing and broadening of absorption spectrum to the visible light region. For ZnO NRs, it was found that the average ZnO NRs c-axis length must achieve of certain length to induce multiphoton absorption as a result of light reflection and trapping behavior in the free space between adjacent ZnO NRs hence broadening the absorption spectrum of ZnO from UV to visible light region. This work opens up a new way of broadening the absorption spectrum by incorporating controllable nanostructures of semiconductors, which is important in optimizing the solar water splitting process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gold%20nanoparticles" title="gold nanoparticles">gold nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=photoelectrochemical" title=" photoelectrochemical"> photoelectrochemical</a>, <a href="https://publications.waset.org/abstracts/search?q=PEC" title=" PEC"> PEC</a>, <a href="https://publications.waset.org/abstracts/search?q=semiconductor%20photocatalyst" title=" semiconductor photocatalyst"> semiconductor photocatalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc%20oxide%20nanorods" title=" zinc oxide nanorods"> zinc oxide nanorods</a> </p> <a href="https://publications.waset.org/abstracts/92902/dimensional-controlled-functional-gold-nanoparticles-and-zinc-oxide-nanorods-for-solar-water-splitting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92902.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">160</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> Simultaneous Nitrification and Denitrification in Suspended Activated Sludge Process Augmented with Immobilized Biomass: A Pilot Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Haon-Yao%20Chen">Haon-Yao Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheng-Fang%20Lin"> Cheng-Fang Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Pui-Kwan%20Andy%20Hong"> Pui-Kwan Andy Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Ping-Yi%20Yang"> Ping-Yi Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Kok%20Kwang%20Ng"> Kok Kwang Ng</a>, <a href="https://publications.waset.org/abstracts/search?q=Sheng-Fu%20Yang"> Sheng-Fu Yang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Simultaneous nitrification and denitrification (SND) are a natural phenomenon in the soil environment that can be applied in wastewater treatment. At a domestic wastewater treatment plant, we performed a pilot test of installing bioplates with entrapped biomass into a conventional aeration basin for SND, and investigated the effects of bioplate packing ratio, hydraulic retention time, dissolved oxygen level, on/off aeration mode, and supplemental carbon and alkalinity on nitrogen removal. With the pilot aeration basin of 1.3 m3 loaded with mixed liquor suspended solids of 1500-2500 mg/L and bioplates at PR of 3.2% (3.2% basin volume) operated at HRT of 6 h and DO of 4-6 mg/L without supplemental carbon or alkalinity, nitrogen in the wastewater was removed to an effluent total nitrogen (TN) of 7.3 mg/L from an influent TN of 28 mg/L. The bioplate robust cellulose triacetate structure carrying the biomass shows promise in retrofitting conventional aeration basins for enhanced nutrient removal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=immobilization" title="immobilization">immobilization</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrification%2Fdenitrification" title=" nitrification/denitrification"> nitrification/denitrification</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrient%20removal" title=" nutrient removal"> nutrient removal</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20nitrogen" title=" total nitrogen"> total nitrogen</a> </p> <a href="https://publications.waset.org/abstracts/35051/simultaneous-nitrification-and-denitrification-in-suspended-activated-sludge-process-augmented-with-immobilized-biomass-a-pilot-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35051.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">648</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> A Study on Assertiveness, Stigmatization, Gender Role Beliefs and Attitudes toward Seeking Professional Psychological Help among Young Adults in South East Asian</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chee%20Kwan%20Foong">Chee Kwan Foong</a>, <a href="https://publications.waset.org/abstracts/search?q=Foong%20Mei%20Kei"> Foong Mei Kei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed to investigate the influence of self-stigma, perceived public stigma, assertiveness and gender role beliefs on attitudes toward seeking professional psychological help. Two hundred and fifty young adults from universities in Brunei were recruited through convenience sampling to complete a survey. Individuals facing higher stigmatisation (both self-stigma and public-stigma) had less positive attitude towards seeking professional psychological help. Individuals who were more assertive had more positive attitude towards seeking professional psychological help. For males, individuals with more traditional gender role belief showed less positive attitude towards seeking professional psychological help. For female, there was no relationship between gender role beliefs and attitude towards seeking professional psychological help. Results confirmed there was a significant mediating effect between public stigma and attitude toward seeking professional psychological help. This study could guide the mental-health professionals in promoting more positive help-seeking attitude and raise the awareness about mental challenges which could assist in reducing stigmatization, and therefore, gain a deeper understanding. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=assertiveness" title="assertiveness">assertiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=attitude%20towards%20seeking%20professional%20psychological%20help" title=" attitude towards seeking professional psychological help"> attitude towards seeking professional psychological help</a>, <a href="https://publications.waset.org/abstracts/search?q=gender%20role%20beliefs" title=" gender role beliefs"> gender role beliefs</a>, <a href="https://publications.waset.org/abstracts/search?q=stigmatization" title=" stigmatization"> stigmatization</a> </p> <a href="https://publications.waset.org/abstracts/49006/a-study-on-assertiveness-stigmatization-gender-role-beliefs-and-attitudes-toward-seeking-professional-psychological-help-among-young-adults-in-south-east-asian" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49006.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">399</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Optimal Sensing Technique for Estimating Stress Distribution of 2-D Steel Frame Structure Using Genetic Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jun%20Su%20Park">Jun Su Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Byung%20Kwan%20Oh"> Byung Kwan Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin%20Woo%20Hwang"> Jin Woo Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yousok%20Kim"> Yousok Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyo%20Seon%20Park"> Hyo Seon Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the structural safety, the maximum stress calculated from the stress distribution of a structure is widely used. The stress distribution can be estimated by deformed shape of the structure obtained from measurement. Although the estimation of stress is strongly affected by the location and number of sensing points, most studies have conducted the stress estimation without reasonable basis on sensing plan such as the location and number of sensors. In this paper, an optimal sensing technique for estimating the stress distribution is proposed. This technique proposes the optimal location and number of sensing points for a 2-D frame structure while minimizing the error of stress distribution between analytical model and estimation by cubic smoothing splines using genetic algorithm. To verify the proposed method, the optimal sensor measurement technique is applied to simulation tests on 2-D steel frame structure. The simulation tests are performed under various loading scenarios. Through those tests, the optimal sensing plan for the structure is suggested and verified. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title="genetic algorithm">genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=optimal%20sensing" title=" optimal sensing"> optimal sensing</a>, <a href="https://publications.waset.org/abstracts/search?q=optimizing%20sensor%20placements" title=" optimizing sensor placements"> optimizing sensor placements</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20frame%20structure" title=" steel frame structure"> steel frame structure</a> </p> <a href="https://publications.waset.org/abstracts/25426/optimal-sensing-technique-for-estimating-stress-distribution-of-2-d-steel-frame-structure-using-genetic-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25426.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">531</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Temporal Trends in the Urban Metabolism of Riyadh, Saudi Arabia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naif%20Albelwi">Naif Albelwi</a>, <a href="https://publications.waset.org/abstracts/search?q=Alan%20Kwan"> Alan Kwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yacine%20Rezgui"> Yacine Rezgui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cities with rapid growth face tremendous challenges not only to provide services to meet this growth but also to assure that this growth occurs in a sustainable way. The consumption of material, energy, and water resources is inextricably linked to population growth with a unique impact in urban areas, especially in light of significant investments in infrastructure to support urban development. Urban Metabolism (UM) is becoming popular as it provides a framework accounting the mass and energy flows through a city. The objective of this study is to determine the energy and material flows of Riyadh, Saudi Arabia using locally generated data from 1996 and 2012 and analyzing the temporal trends of energy and material flows. Preliminary results show that while the population of Riyadh grew 90% since 1996, the input and output flows have increased at higher rate. Results also show increasing in energy mobile consumption from 61k TJ in 1996 to 157k TJ in 2012 which points to Riyadh’s inefficient urban form. The study findings highlight the importance to develop effective policies for improving the use of resources. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20and%20water%20consumption" title="energy and water consumption">energy and water consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20development" title=" urban development"> urban development</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20metabolism" title=" urban metabolism"> urban metabolism</a> </p> <a href="https://publications.waset.org/abstracts/55550/temporal-trends-in-the-urban-metabolism-of-riyadh-saudi-arabia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55550.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">272</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Crack Width Analysis of Reinforced Concrete Members under Shrinkage Effect by Pseudo-Discrete Crack Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20J.%20Ma">F. J. Ma</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20K.%20H.%20Kwan"> A. K. H. Kwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Crack caused by shrinkage movement of concrete is a serious problem especially when restraint is provided. It may cause severe serviceability and durability problems. The existing prediction methods for crack width of concrete due to shrinkage movement are mainly numerical methods under simplified circumstances, which do not agree with each other. To get a more unified prediction method applicable to more sophisticated circumstances, finite element crack width analysis for shrinkage effect should be developed. However, no existing finite element analysis can be carried out to predict the crack width of concrete due to shrinkage movement because of unsolved reasons of conventional finite element analysis. In this paper, crack width analysis implemented by finite element analysis is presented with pseudo-discrete crack model, which combines traditional smeared crack model and newly proposed crack queuing algorithm. The proposed pseudo-discrete crack model is capable of simulating separate and single crack without adopting discrete crack element. And the improved finite element analysis can successfully simulate the stress redistribution when concrete is cracked, which is crucial for predicting crack width, crack spacing and crack number. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crack%20queuing%20algorithm" title="crack queuing algorithm">crack queuing algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=crack%20width%20analysis" title=" crack width analysis"> crack width analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=shrinkage%20effect" title=" shrinkage effect"> shrinkage effect</a> </p> <a href="https://publications.waset.org/abstracts/50507/crack-width-analysis-of-reinforced-concrete-members-under-shrinkage-effect-by-pseudo-discrete-crack-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50507.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">419</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Optimal Retrofit Design of Reinforced Concrete Frame with Infill Wall Using Fiber Reinforced Plastic Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang%20Wook%20Park">Sang Wook Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Se%20Woon%20Choi"> Se Woon Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yousok%20Kim"> Yousok Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Byung%20Kwan%20Oh"> Byung Kwan Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyo%20Seon%20Park"> Hyo Seon Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Various retrofit techniques for reinforced concrete frame with infill wall have been steadily developed. Among those techniques, strengthening methodology based on diagonal FRP strips (FRP bracings) has numerous advantages such as feasibility of implementing without interrupting the building under operation, reduction of cost and time, and easy application. Considering the safety of structure and retrofit cost, the most appropriate retrofit solution is needed. Thus, the objective of this study is to suggest pareto-optimal solution for existing building using FRP bracings. To find pareto-optimal solution analysis, NSGA-II is applied. Moreover, the seismic performance of retrofit building is evaluated. The example building is 5-storey, 3-bay RC frames with infill wall. Nonlinear static pushover analyses are performed with FEMA 356. The criterion of performance evaluation is inter-story drift ratio at the performance level IO, LS, CP. Optimal retrofit solutions is obtained for 32 individuals and 200 generations. Through the proposed optimal solutions, we confirm the improvement of seismic performance of the example building. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=retrofit" title="retrofit">retrofit</a>, <a href="https://publications.waset.org/abstracts/search?q=FRP%20bracings" title=" FRP bracings"> FRP bracings</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforced%20concrete%20frame%20with%20infill%20wall" title=" reinforced concrete frame with infill wall"> reinforced concrete frame with infill wall</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20performance%20evaluation" title=" seismic performance evaluation"> seismic performance evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=NSGA-II" title=" NSGA-II"> NSGA-II</a> </p> <a href="https://publications.waset.org/abstracts/42927/optimal-retrofit-design-of-reinforced-concrete-frame-with-infill-wall-using-fiber-reinforced-plastic-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42927.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">437</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Periodic Change in the Earth’s Rotation Velocity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sung%20Duk%20Kim">Sung Duk Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan%20U.%20Kim"> Kwan U. Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin%20Sim"> Jin Sim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ryong%20Jin%20Jang"> Ryong Jin Jang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The phenomenon of seasonal variations in the Earth’s rotation velocity was discovered in the 1930s when a crystal clock was developed and analyzed in a quantitative way for the first time between 1955 and 1968 when observation data of the seasonal variations was analyzed by an atomic clock. According to the previous investigation, atmospheric circulation is supposed to be a factor affecting the seasonal variations in the Earth’s rotation velocity in many cases, but the problem has not been solved yet. In order to solve the problem, it is necessary to apply dynamics to consider the Earth’s spatial motion, rotation, and change of shape of the Earth (movement of materials in and out of the Earth and change of the Earth’s figure) at the same time and in interrelation to the accuracy of post-Newtonian approximation regarding the Earth body as a system of mass points because the stability of the Earth’s rotation angular velocity is in the range of 10⁻⁸~10⁻⁹. For it, the equation was derived, which can consider the 3 kinds of motion above mentioned at the same time by taking the effect of the resultant external force on the Earth’s rotation into account in a relativistic way to the accuracy of post-Newtonian approximation. Therefore, the equation has been solved to obtain the theoretical values of periodic change in the Earth’s rotation velocity, and they have been compared with the astronomical observation data so to reveal the cause for the periodic change in the Earth’s rotation velocity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Earth%20rotation" title="Earth rotation">Earth rotation</a>, <a href="https://publications.waset.org/abstracts/search?q=moment%20function" title=" moment function"> moment function</a>, <a href="https://publications.waset.org/abstracts/search?q=periodic%20change" title=" periodic change"> periodic change</a>, <a href="https://publications.waset.org/abstracts/search?q=seasonal%20variation" title=" seasonal variation"> seasonal variation</a>, <a href="https://publications.waset.org/abstracts/search?q=relativistic%20change" title=" relativistic change"> relativistic change</a> </p> <a href="https://publications.waset.org/abstracts/182897/periodic-change-in-the-earths-rotation-velocity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182897.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">73</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> On the Main Factor That Causes the Instabilities of the Earth Rotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jin%20Sim">Jin Sim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwan%20U.%20Kim"> Kwan U. Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ryong%20Jin%20Jang"> Ryong Jin Jang</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung%20Duk%20Kim"> Sung Duk Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Earth rotation is one of astronomical phenomena without which it is impossible to think of human life. That is why the investigation of the Earth's rotation is very important, and it has a long history of study. The invention of quartz clocks in the 1930s and atomic time 1950s and the introduction of modern technology into astronomic observation in recent years resulted in rapid development of the study of Earth’s rotation. The theory of the Earth rotation, however, has not been up to the high level of astronomic observation due to limitation of the time such as impossibility of quantitative calculation of moment of external force for Euler’s dynamical equation based on Newtonian mechanics. As a typical example, we can take the problems that cover the instabilities of the Earth’s rotation proved completely by the astronomic observations as well as polar motion, the precession and nutation of the Earth rotation axis which have not been described in a single equation in a quantitative way from the unique law of Earth rotation. In particular, at present the problem of what the main factor causing the instabilities of the Earth rotation is has not been solved clearly in quantitative ways yet. Therefore, this paper addresses quantitative proof that the main factor which causes the instabilities of the Earth rotation is the moment of external force rather than variations in the relative atmospheric angular momentum and in moment of inertia of the Earth’s body due to the time limitation and under some assumptions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20angular%20momentum" title="atmospheric angular momentum">atmospheric angular momentum</a>, <a href="https://publications.waset.org/abstracts/search?q=instabilities%20of%20the%20Earth%E2%80%99s%20rotation" title=" instabilities of the Earth’s rotation"> instabilities of the Earth’s rotation</a>, <a href="https://publications.waset.org/abstracts/search?q=law%20of%20the%20Earth%E2%80%99s%20rotation%20change" title=" law of the Earth’s rotation change"> law of the Earth’s rotation change</a>, <a href="https://publications.waset.org/abstracts/search?q=moment%20of%20%20%20%20inertia%20of%20the%20Earth" title=" moment of inertia of the Earth"> moment of inertia of the Earth</a> </p> <a href="https://publications.waset.org/abstracts/192592/on-the-main-factor-that-causes-the-instabilities-of-the-earth-rotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192592.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">18</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> The Relation between Authenticity at Work and Job Satisfaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Godiva%20Kwan">Godiva Kwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Winton%20Au"> Winton Au</a>, <a href="https://publications.waset.org/abstracts/search?q=Fanny%20Cheung"> Fanny Cheung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Authenticity, being true to oneself and acting in congruence with one’s values and beliefs, is a basic human strength, and is instrumental to understanding well-being. While dispositional authenticity was found to be associated with positive affect and subjective well-being, others have demonstrated that individuals assumed different levels of authenticity when they took up different social roles, suggesting that state authenticity can be an alternative mechanism. This study examined the relation between workplace authenticity and job satisfaction. We hypothesize that state authenticity at work will be predicted by psychological safety climate (organizational climate where employees feel safe to speak up without being embarrassed or rejected). Employees are expected to experience higher subjective well-being and job satisfaction as a result of being authentic at work. Survey results provided support to the hypotheses. Psychological safety climate enhanced employees’ authenticity state at work, which in turn improved well-being and job satisfaction. In conclusion, we found that employees become more authentic at work in an organizational climate where they feel safe to express themselves, leading to a higher job satisfaction and well-being. The current study contributes to the understanding of underlying mechanisms behind experiencing authenticity at work among employees in Hong Kong. Our findings are expected to provide insights and to raise organizations’ awareness of creating an open and trustful culture in order to enhance job satisfaction of employees through encouraging them to “be themselves”. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=authenticity" title="authenticity">authenticity</a>, <a href="https://publications.waset.org/abstracts/search?q=job%20satisfaction" title=" job satisfaction"> job satisfaction</a>, <a href="https://publications.waset.org/abstracts/search?q=psychological%20safety%20climate" title=" psychological safety climate"> psychological safety climate</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20climate" title=" organizational climate "> organizational climate </a> </p> <a href="https://publications.waset.org/abstracts/24937/the-relation-between-authenticity-at-work-and-job-satisfaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24937.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">428</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Analysis of Thermal Damage Characteristics of High Pressure Turbine Blade According to Off-Design Operating Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seon%20Ho%20Kim">Seon Ho Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Minho%20Bang"> Minho Bang</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok%20Min%20Choi"> Seok Min Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%20Moon%20Lee"> Young Moon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Kwan%20Kim"> Dong Kwan Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyung%20Hee%20Cho"> Hyung Hee Cho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gas turbines are heat engines that convert chemical energy into electrical energy through mechanical energy. Since their high energy density per unit volume and low pollutant emissions, gas turbines are classified as clean energy. In order to obtain better performance, the turbine inlet temperature of the current gas turbine is operated at about 1600℃, and thermal damage is a very serious problem. Especially, these thermal damages are more prominent in off-design conditions than in design conditions. In this study, the thermal damage characteristics of high temperature components of a gas turbine made of a single crystal material are studied numerically for the off-design operating conditions. The target gas turbine is configured as a reheat cycle and is operated in peak load operation mode, not normal operation. In particular, the target gas turbine features a lot of low-load operation. In this study, a commercial code, ANSYS 18.2, was used for analyzing the thermal-flow coupling problems. As a result, the flow separation phenomenon on the pressure side due to the flow reduction was remarkable at the off-design condition, and the high heat transfer coefficient at the upper end of the suction surface due to the tip leakage flow was appeared. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gas%20turbine" title="gas turbine">gas turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20crystal%20blade" title=" single crystal blade"> single crystal blade</a>, <a href="https://publications.waset.org/abstracts/search?q=off-design" title=" off-design"> off-design</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20analysis" title=" thermal analysis"> thermal analysis</a> </p> <a href="https://publications.waset.org/abstracts/81581/analysis-of-thermal-damage-characteristics-of-high-pressure-turbine-blade-according-to-off-design-operating-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81581.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">213</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> CFD Studies on Forced Convection Nanofluid Flow Inside a Circular Conduit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Khalid">M. Khalid</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Rashmi"> W. Rashmi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20L.%20Kwan"> L. L. Kwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work provides an overview on the experimental and numerical simulations of various nanofluids and their flow and heat transfer behavior. It was further extended to study the effect of nanoparticle concentration, fluid flow rates and thermo-physical properties on the heat transfer enhancement of Al2O3/water nanofluid in a turbulent flow circular conduit using ANSYS FLUENT™ 14.0. Single-phase approximation (homogeneous model) and two-phase (mixture and Eulerian) models were used to simulate the nanofluid flow behavior in the 3-D horizontal pipe. The numerical results were further validated with experimental correlations reported in the literature. It was found that heat transfer of nanofluids increases with increasing particle volume concentration and Reynolds number, respectively. Results showed good agreement (~9% deviation) with the experimental correlations, especially for a single-phase model with constant properties. Among two-phase models, mixture model (~14% deviation) showed better prediction compared to Eulerian-dispersed model (~18% deviation) when temperature independent properties were used. Non-drag forces were also employed in the Eulerian two-phase model. However, the two-phase mixture model with temperature dependent nanofluid properties gave slightly closer agreement (~12% deviation). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title="nanofluid">nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20conduit" title=" circular conduit"> circular conduit</a> </p> <a href="https://publications.waset.org/abstracts/13358/cfd-studies-on-forced-convection-nanofluid-flow-inside-a-circular-conduit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13358.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">523</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Hing%20Kwan%20To&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Hing%20Kwan%20To&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Hing%20Kwan%20To&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> 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