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Hwang</title> <meta name="description" content="Search results for: Jihoon Hwang"> <meta name="keywords" content="Jihoon Hwang"> <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 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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="Jihoon Hwang"> <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> 88</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Jihoon Hwang</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">88</span> Pentax Airway Scope Video Laryngoscope for Orotracheal Intubation in Children: A Randomized Controlled Trial</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=In%20Kyong%20Yi">In Kyong Yi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yun%20Jeong%20Chae"> Yun Jeong Chae</a>, <a href="https://publications.waset.org/abstracts/search?q=Jihoon%20Hwang"> Jihoon Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Sook-Young%20Lee"> Sook-Young Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong-Yeop%20Kim"> Jong-Yeop Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Pentax airway scope (AWS) is a recently developed video laryngoscope for use in both normal and difficult airways, providing a good laryngeal view. The purpose of this randomized noninferior study was to evaluate the efficacy of the Pentax-AWS regarding intubation time, laryngeal view and ease of intubation in pediatric patients with normal airway, compared to Macintosh laryngoscope. Method: A total of 136 pediatric patients aged 1 to 10 with American Society of Anesthesiologists physical status I or II undergoing general anesthesia required orotracheal intubation were randomly allocated into two groups: Macintosh laryngoscope (n =68) and Pentax AWS (n=68). Anesthesia was induced with propofol, rocuronium, and sevoflurane. The primary outcome was intubation time. Cormack-Lehane laryngeal view grade, application of optimal laryngeal external manipulation (OELM), intubation difficulty scale (IDS), intubation failure rate and adverse events were also measured. Result: No significant difference was observed between the two groups regarding intubation time (Macintosh; 23[22-26] sec vs. Pentax; 23.5[22-27.75] sec, p=0.713). As for the laryngeal view grade, the Pentax group showed less number of grade 2a or higher grade cases compared to the Macintosh group (1/2a/2b/3; 52.9%/41.2%/4.4%/1.5% vs. 98.5%/1.5%/0%/0%, p=0.000). No optimal laryngeal external manipulation application was required in the Pentax group (38.2% vs. 0%, p=0.000). Intubation difficulty scale resulted in lower values for Pentax group (0 [0-2] vs. 0 [0-0.55], p=0.001). Failure rate was not different between the two groups (1.5% vs. 4.4%, p=0.619). Adverse event-wise, slightly higher incidence of bleeding (1.5% vs. 5.9%, p=0.172) and teeth injury (0% vs. 5.9%, p=0.042) occurred in the Pentax group. Conclusion: In conclusion, Pentax-AWS provided better laryngeal view, similar intubation time and similar success rate compared with Macintosh laryngoscope in children with normal airway. However, the risk of teeth injury might increase and warrant special attention. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pentax-AWS" title="Pentax-AWS">Pentax-AWS</a>, <a href="https://publications.waset.org/abstracts/search?q=pediatric" title=" pediatric"> pediatric</a>, <a href="https://publications.waset.org/abstracts/search?q=video%20laryngoscope" title=" video laryngoscope"> video laryngoscope</a>, <a href="https://publications.waset.org/abstracts/search?q=intubation" title=" intubation"> intubation</a> </p> <a href="https://publications.waset.org/abstracts/90406/pentax-airway-scope-video-laryngoscope-for-orotracheal-intubation-in-children-a-randomized-controlled-trial" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90406.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">202</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">87</span> Transcriptome Analysis of Protestia brevitarsis seulensis with Focus On Wing Development and Metamorphosis in Developmental Stages</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jihye%20Hwang">Jihye Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Eun%20Hwa%20Choi"> Eun Hwa Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Su%20Youn%20Baek"> Su Youn Baek</a>, <a href="https://publications.waset.org/abstracts/search?q=Bia%20Park"> Bia Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyeongmin%20Kim"> Gyeongmin Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chorong%20Shin"> Chorong Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Joon%20Ha%20Lee"> Joon Ha Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Sam%20Hwang"> Jae-Sam Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ui%20Wook%20Hwang"> Ui Wook Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> White-spotted flower chafers are widely distributed in Asian countries and traditionally used for the treatment of chronic fatigue, blood circulation, and paralysis in the oriental medicine field. The evolution and development of insect wings and metamorphosis remain under-discovered subjects in arthropod evolutionary researches. Gene expression abundance analyses along with developmental stages based on the large-scale RNA-seq data are also still rarely done. Here we report the de novo assembly of a Protestia brevitarsis seulensis transcriptome along four different developmental stages (egg, larva, pupa, and adult) to explore its development and evolution of wings and metamorphosis. The de novo transcriptome assembly consists of 23,551 high-quality transcripts and is approximately 96.7% complete. Out of 8,545 transcripts, 5,183 correspond to the possible orthologs with Drosophila melanogaster. As a result, we could found 265 genes related to wing development and 19 genes related to metamorphosis. The comparison of transcript expression abundance with different developmental stages revealed developmental stage-specific transcripts especially working at the stage of wing development and metamorphosis of P. b. seulensis. This transcriptome quantification along the developmental stages may provide some meaningful clues to elucidate the genetic modulation mechanism of wing development and metamorphosis obtained during the insect evolution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=white-spotted%20flower%20chafers" title="white-spotted flower chafers">white-spotted flower chafers</a>, <a href="https://publications.waset.org/abstracts/search?q=transcriptomics" title=" transcriptomics"> transcriptomics</a>, <a href="https://publications.waset.org/abstracts/search?q=RNA-seq" title=" RNA-seq"> RNA-seq</a>, <a href="https://publications.waset.org/abstracts/search?q=network%20biology" title=" network biology"> network biology</a>, <a href="https://publications.waset.org/abstracts/search?q=wing%20development" title=" wing development"> wing development</a>, <a href="https://publications.waset.org/abstracts/search?q=metamorphosis" title=" metamorphosis"> metamorphosis</a> </p> <a href="https://publications.waset.org/abstracts/138739/transcriptome-analysis-of-protestia-brevitarsis-seulensis-with-focus-on-wing-development-and-metamorphosis-in-developmental-stages" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138739.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">229</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">86</span> Fabrication of Optical Tissue Phantoms Simulating Human Skin and Their Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jihoon%20Park">Jihoon Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Sungkon%20Yu"> Sungkon Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Byungjo%20Jung"> Byungjo Jung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although various optical tissue phantoms (OTPs) simulating human skin have been actively studied, their completeness is unclear because skin tissue has the intricate optical property and complicated structure disturbing the optical simulation. In this study, we designed multilayer OTP mimicking skin structure, and fabricated OTP models simulating skin-blood vessel and skin pigmentation in the skin, which are useful in Biomedical optics filed. The OTPs were characterized with the optical property and the cross-sectional structure, and analyzed by using various optical tools such as a laser speckle imaging system, OCT and a digital microscope to show the practicality. The measured optical property was within 5% error, and the thickness of each layer was uniform within 10% error in micrometer scale. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blood%20vessel" title="blood vessel">blood vessel</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20tissue%20phantom" title=" optical tissue phantom"> optical tissue phantom</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20property" title=" optical property"> optical property</a>, <a href="https://publications.waset.org/abstracts/search?q=skin%20tissue" title=" skin tissue"> skin tissue</a>, <a href="https://publications.waset.org/abstracts/search?q=pigmentation" title=" pigmentation"> pigmentation</a> </p> <a href="https://publications.waset.org/abstracts/68389/fabrication-of-optical-tissue-phantoms-simulating-human-skin-and-their-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68389.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">455</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">85</span> Linear Parameter-Varying Control for Selective Catalytic Reduction Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jihoon%20Lim">Jihoon Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Kirchen"> Patrick Kirchen</a>, <a href="https://publications.waset.org/abstracts/search?q=Ryozo%20Nagamune"> Ryozo Nagamune</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a linear parameter-varying (LPV) controller capable of reducing nitrogen oxide (NOx) emissions with low ammonia (NH3) slip downstream of selective catalytic reduction (SCR) systems. SCR systems are widely adopted in diesel engines due to high NOx conversion efficiency. However, the nonlinearity of the SCR system and sensor uncertainty result in a challenging control problem. In order to overcome the control challenges, an LPV controller is proposed based on gain-scheduling parameters, that is, exhaust gas temperature and exhaust gas flow rate. Based on experimentally obtained data under the non-road transient driving cycle (NRTC), the simulations firstly show that the proposed controller yields high NOx conversion efficiency with a desired low NH3 slip. The performance of the proposed LPV controller is then compared with other controllers, including a gain-scheduling PID controller and a sliding mode controller. Additionally, the robustness is also demonstrated using the uncertainties ranging from 10 to 30%. The results show that the proposed controller is robustly stable under uncertainties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diesel%20engine" title="diesel engine">diesel engine</a>, <a href="https://publications.waset.org/abstracts/search?q=gain-scheduling%20control" title=" gain-scheduling control"> gain-scheduling control</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20parameter-varying" title=" linear parameter-varying"> linear parameter-varying</a>, <a href="https://publications.waset.org/abstracts/search?q=selective%20catalytic%20reduction" title=" selective catalytic reduction "> selective catalytic reduction </a> </p> <a href="https://publications.waset.org/abstracts/128744/linear-parameter-varying-control-for-selective-catalytic-reduction-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128744.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">146</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">84</span> Microglia Activity and Induction of Mechanical Allodynia after Mincle Receptor Ligand Injection in Rat Spinal Cord</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jihoon%20Yang">Jihoon Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeong%20II%20Choi"> Jeong II Choi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mincle is expressed in macrophages and is members of immunoreceptors induced after exposure to various stimuli and stresses. Mincle receptor activation promotes the production of these substances by increasing the transcription of inflammatory cytokines and chemokines. Cytokines, which play an important role in the initiation and maintenance of such inflammatory pain diseases, have a significant effect on sensory neurons in addition to their enhancement and inhibitory effects on immune and inflammatory cells as mediators of cell interaction. Glial cells in the central nervous system play a critical role in development and maintenance of chronic pain states. Microglia are tissue-resident macrophages in the central nervous system, and belong to a group of mononuclear phagocytes. In the central nervous system, mincle receptor is present in neurons and glial cells of the brain.This study was performed to identify the Mincle receptor in the spinal cord and to investigate the effect of Mincle receptor activation on nociception and the changes of microglia. Materials and Methods: C-type lectins(Mincle) was identified in spinal cord of Male Sprague–Dawley rats. Then, mincle receptor ligand (TDB), via an intrathecal catheter. Mechanical allodynia was measured using von Frey test to evaluate the effect of intrathecal injection of TDB. Result: The present investigation shows that the intrathecal administration of TDB in the rat produces a reliable and quantifiable mechanical hyperalgesia. In addition, The mechanical hyperalgesia after TDB injection gradually developed over time and remained until 10 days. Mincle receptor is identified in the spinal cord, mainly expressed in neuronal cells, but not in microglia or astrocyte. These results suggest that activation of mincle receptor pathway in neurons plays an important role in inducing activation of microglia and inducing mechanical allodynia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mincle" title="mincle">mincle</a>, <a href="https://publications.waset.org/abstracts/search?q=spinal%20cord" title=" spinal cord"> spinal cord</a>, <a href="https://publications.waset.org/abstracts/search?q=pain" title=" pain"> pain</a>, <a href="https://publications.waset.org/abstracts/search?q=microglia" title=" microglia"> microglia</a> </p> <a href="https://publications.waset.org/abstracts/79571/microglia-activity-and-induction-of-mechanical-allodynia-after-mincle-receptor-ligand-injection-in-rat-spinal-cord" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79571.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">159</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">83</span> Surface Modification of SUS-304 Using Nitriding Treatment for Application of Bipolar Plates of Proton Exchange Membrane Fuel Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wei-Ru%20Chang">Wei-Ru Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jenn-Jiang%20Hwang"> Jenn-Jiang Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Zen-Ting%20Hsiao"> Zen-Ting Hsiao</a>, <a href="https://publications.waset.org/abstracts/search?q=Shu-Feng%20Lee"> Shu-Feng Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Proton exchange membrane (PEM) fuel cells are widely used in electrical systems as an economical, low-polluting energy source. This study investigates the effects of PEMFC gas nitriding treatment on metal bipolar plates. The test material was SUS304 stainless steel. The study explored five different pretreatment processes, varying the corrosion resistance and electrical conductivity conditions. The most effective process was industrial acid washing, followed by heating to 500 °C. Under the condition, the corrosion current density was 8.695 μA, significantly lower than that of the untreated pretreatment sample flakes, which was measured as 38.351 μA. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitriding" title="nitriding">nitriding</a>, <a href="https://publications.waset.org/abstracts/search?q=bipolar" title=" bipolar"> bipolar</a>, <a href="https://publications.waset.org/abstracts/search?q=304" title=" 304"> 304</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance" title=" resistance"> resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=pretreatment" title=" pretreatment"> pretreatment</a> </p> <a href="https://publications.waset.org/abstracts/31497/surface-modification-of-sus-304-using-nitriding-treatment-for-application-of-bipolar-plates-of-proton-exchange-membrane-fuel-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31497.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">1087</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">82</span> Angle of Arrival Estimation Using Maximum Likelihood Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olomon%20Wu">Olomon Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hung%20Lu"> Hung Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Nick%20Wilkins"> Nick Wilkins</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Kerr"> Daniel Kerr</a>, <a href="https://publications.waset.org/abstracts/search?q=Zekeriya%20Aliyazicioglu"> Zekeriya Aliyazicioglu</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20K.%20Hwang"> H. K. Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Multiple Input Multiple Output (MIMO) radar has received increasing attention in recent years. MIMO radar has many advantages over conventional phased array radar such as target detection, resolution enhancement, and interference suppression. In this paper, the results are presented from a simulation study of MIMO Uniformly-Spaced Linear Array (ULA) antennas. The performance is investigated under varied parameters, including varied array size, Pseudo Random (PN) sequence length, number of snapshots, and Signal to Noise Ratio (SNR). The results of MIMO are compared to a traditional array antenna. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MIMO%20radar" title="MIMO radar">MIMO radar</a>, <a href="https://publications.waset.org/abstracts/search?q=phased%20array%20antenna" title=" phased array antenna"> phased array antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=target%20detection" title=" target detection"> target detection</a>, <a href="https://publications.waset.org/abstracts/search?q=radar%20signal%20processing" title=" radar signal processing"> radar signal processing</a> </p> <a href="https://publications.waset.org/abstracts/2469/angle-of-arrival-estimation-using-maximum-likelihood-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2469.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">541</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">81</span> Semantic Analysis of the Change in Awareness of Korean College Admission Policy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sujin%20Hwang">Sujin Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyerang%20Park"> Hyerang Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyunchul%20Kim"> Hyunchul Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study is to find the effectiveness of the admission simplification policy. The number of online news articles about ‘high school record’ was collected and semantically analyzed to identify and analyze the social awareness during 2014 to 2015. The main results of the study are as follows: First, there was a difference in expectations that the burden of the examinees would decrease as announced by KCUE. Thus, there was still a strain on the university entrance exam after the enforcement of the policy. Second, private tutoring is expanding in different forms, rather than reducing the policy. It is different from the prediction that examinees can prepare for university admissions without the private tutoring. Thus, the college admission rules currently enforced needs to be improved. The reasonable college admission system changes are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=education%20policy" title="education policy">education policy</a>, <a href="https://publications.waset.org/abstracts/search?q=private%20tutoring" title=" private tutoring"> private tutoring</a>, <a href="https://publications.waset.org/abstracts/search?q=shadow%20education" title=" shadow education"> shadow education</a>, <a href="https://publications.waset.org/abstracts/search?q=education%20admission%20policy" title=" education admission policy"> education admission policy</a> </p> <a href="https://publications.waset.org/abstracts/84656/semantic-analysis-of-the-change-in-awareness-of-korean-college-admission-policy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84656.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">227</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">80</span> Prediction of CO2 Concentration in the Korea Train Express (KTX) Cabins</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yong-Il%20Lee">Yong-Il Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Do-Yeon%20Hwang"> Do-Yeon Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Won-Seog%20Jeong"> Won-Seog Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Duckshin%20Park"> Duckshin Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, because of the high-speed trains forced ventilation, it is important to control the ventilation. The ventilation is for controlling various contaminants, temperature, and humidity. The high-speed train route is straight to a destination having a high speed. And there are many mountainous areas in Korea. So, tunnel rate is higher then other country. KTX HVAC block off the outdoor air, when entering tunnel. So the high tunnel rate is an effect of ventilation in the KTX cabin. It is important to reduction rate in CO2 concentration prediction. To meet the air quality of the public transport vehicles recommend standards, the KTX cabin of CO2 concentration should be managed. In this study, the concentration change was predicted by CO2 prediction simulation in route to be opened. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO2%20prediction" title="CO2 prediction">CO2 prediction</a>, <a href="https://publications.waset.org/abstracts/search?q=KTX" title=" KTX"> KTX</a>, <a href="https://publications.waset.org/abstracts/search?q=ventilation" title=" ventilation"> ventilation</a>, <a href="https://publications.waset.org/abstracts/search?q=infrastructure%20and%20transportation%20engineering" title=" infrastructure and transportation engineering"> infrastructure and transportation engineering</a> </p> <a href="https://publications.waset.org/abstracts/18283/prediction-of-co2-concentration-in-the-korea-train-express-ktx-cabins" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18283.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">543</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">79</span> Development of Visual Element Design Guidelines for Consumer Products Based on User Characteristics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Taezoon%20Park">Taezoon Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Wonil%20Hwang"> Wonil Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to build a design guideline for the effective visual display used for consumer products considering user characteristics; gender and age. Although a number of basic experiments identified the limits of human visual perception, the findings remain fragmented and many times in an unfriendly form. This study compiled a design cases along with tables aggregated from the experimental result of visual perception; brightness/contrast, useful field of view, color sensitivity. Visual design elements commonly used for consumer product, were selected and appropriate guidelines were developed based on the experimental result. Since the provided data with case example suggests a feasible design space, it will save time for a product designer to find appropriate design alternatives. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20guideline" title="design guideline">design guideline</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer%20product" title=" consumer product"> consumer product</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20design%20element" title=" visual design element"> visual design element</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20perception" title=" visual perception"> visual perception</a>, <a href="https://publications.waset.org/abstracts/search?q=emotional%20design" title=" emotional design"> emotional design</a> </p> <a href="https://publications.waset.org/abstracts/55080/development-of-visual-element-design-guidelines-for-consumer-products-based-on-user-characteristics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55080.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">372</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">78</span> EEG Signal Processing Methods to Differentiate Mental States</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sun%20H.%20Hwang">Sun H. Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%20E.%20Lee"> Young E. Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yunhan%20Ga"> Yunhan Ga</a>, <a href="https://publications.waset.org/abstracts/search?q=Gilwon%20Yoon"> Gilwon Yoon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> EEG is a very complex signal with noises and other bio-potential interferences. EOG is the most distinct interfering signal when EEG signals are measured and analyzed. It is very important how to process raw EEG signals in order to obtain useful information. In this study, the EEG signal processing techniques such as EOG filtering and outlier removal were examined to minimize unwanted EOG signals and other noises. The two different mental states of resting and focusing were examined through EEG analysis. A focused state was induced by letting subjects to watch a red dot on the white screen. EEG data for 32 healthy subjects were measured. EEG data after 60-Hz notch filtering were processed by a commercially available EOG filtering and our presented algorithm based on the removal of outliers. The ratio of beta wave to theta wave was used as a parameter for determining the degree of focusing. The results show that our algorithm was more appropriate than the existing EOG filtering. <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=focus" title=" focus"> focus</a>, <a href="https://publications.waset.org/abstracts/search?q=mental%20state" title=" mental state"> mental state</a>, <a href="https://publications.waset.org/abstracts/search?q=outlier" title=" outlier"> outlier</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20processing" title=" signal processing"> signal processing</a> </p> <a href="https://publications.waset.org/abstracts/62057/eeg-signal-processing-methods-to-differentiate-mental-states" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62057.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">283</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">77</span> Tenure Track System and Its Impact on Grading Leniency and Student Effort: A Quasi-Experimental Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shao-Hsun%20Keng">Shao-Hsun Keng</a>, <a href="https://publications.waset.org/abstracts/search?q=Hwang-Ruey%20Song"> Hwang-Ruey Song</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper examines the causal effect of the tenure track system on instructors’ grading practices and teaching effectiveness by taking advantage of a natural experiment in Taiwan. The results show that assistant professors subject to the tenure track policy are more likely to grade leniently and fail fewer students. The course grade is 5% higher in classes taught by assistant professors subject to the tenure system. However, the tendency to grade leniently is reversed after assistant professors subject to the tenure system are promoted to a higher rank. Our findings are consistent with the exchange theory. We also show that teaching and student efforts are adversely affected by the tenure policy, which could reduce student learning and the quality of the workforce in the long run. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tenure%20track%20system" title="tenure track system">tenure track system</a>, <a href="https://publications.waset.org/abstracts/search?q=grading%20leniency" title=" grading leniency"> grading leniency</a>, <a href="https://publications.waset.org/abstracts/search?q=study%20time" title=" study time"> study time</a>, <a href="https://publications.waset.org/abstracts/search?q=grade%20inflation" title=" grade inflation"> grade inflation</a> </p> <a href="https://publications.waset.org/abstracts/17824/tenure-track-system-and-its-impact-on-grading-leniency-and-student-effort-a-quasi-experimental-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17824.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">413</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">76</span> Gas Separation Membranes Using Stability Improved Ion Gels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20H.%20Hwang">Y. H. Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Won"> J. Won</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20S.%20Kang"> Y. S. Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since ionic liquids have a special interaction with gas specially CO2 and/or olefin, supported ionic liquids membrane (SILM) are fabricated for practical gas separation. However, SILM has a problem in practical application due to the low mechanical stability under high pressure for gas separation. In order to improve the mechanical strength of the selective ionic liquid layer, we prepared supported ion gel membrane by the formation of gel on the surface of Nylon support. The ion gel was prepared by the addition of poly(styrene-block-ethyleneoxide-block-styrene) triblock copolymer in four tricyanomethanide ionic liquids have different cation; 1-ethyl-3-methlyimidazolium tricyanomethanide, 1-butyl-3-methlyimidazolium tricyanomethanide, 1-butyl-1-methylpyrrolidinium tricyanomethanide, 1-butyl-4-methylpyridinium tricyanomethanide using methylenechloride as a solvent. The characters of ion gel with different cation were studied. Four different gases (CO2, N2, O2, and CH4) permeance were measured at room temperature by bubble flow meter and cation effect of tricyanomethanide ionic liquids investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=membrane" title="membrane">membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20gel" title=" ion gel"> ion gel</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructure" title=" nanostructure"> nanostructure</a> </p> <a href="https://publications.waset.org/abstracts/17831/gas-separation-membranes-using-stability-improved-ion-gels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17831.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">344</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">75</span> Measurements of Flow Mixing Behaviors Using a Wire-Mesh Sensor in a Wire-Wrapped 37-Pin Rod Assembly</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyungmo%20Kim">Hyungmo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hwang%20Bae"> Hwang Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok-Kyu%20Chang"> Seok-Kyu Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Won%20Lee"> Dong Won Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yung%20Joo%20Ko"> Yung Joo Ko</a>, <a href="https://publications.waset.org/abstracts/search?q=Sun%20Rock%20Choi"> Sun Rock Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hae%20Seob%20Choi"> Hae Seob Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Seok%20Woo"> Hyeon Seok Woo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong-Jin%20Euh"> Dong-Jin Euh</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeong-Yeon%20Lee"> Hyeong-Yeon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flow mixing characteristics in the wire-wrapped 37-pin rod bundle were measured by using a wire-mesh sensing system for a sodium-cooled fast reactor (SFR). The subchannel flow mixing in SFR core subchannels was an essential characteristic for verification of a core thermal design and safety analysis. A dedicated test facility including the wire-mesh sensor system and tracing liquid injection system was developed, and the conductivity fields at the end of 37-pin rod bundle were visualized in several different flow conditions. These experimental results represented the reasonable agreements with the results of CFD, and the uncertainty of the mixing experiments has been conducted to evaluate the experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=core%20thermal%20design" title="core thermal design">core thermal design</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20mixing" title=" flow mixing"> flow mixing</a>, <a href="https://publications.waset.org/abstracts/search?q=a%20wire-mesh%20sensor" title=" a wire-mesh sensor"> a wire-mesh sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=a%20wire-wrap%20effect" title=" a wire-wrap effect"> a wire-wrap effect</a> </p> <a href="https://publications.waset.org/abstracts/23655/measurements-of-flow-mixing-behaviors-using-a-wire-mesh-sensor-in-a-wire-wrapped-37-pin-rod-assembly" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23655.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">629</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">74</span> Influence of Nano-ATH on Electrical Performance of LSR for HVDC Insulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ju-Na%20Hwang">Ju-Na Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Min-Hae%20Park"> Min-Hae Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Kee-Joe%20Lim"> Kee-Joe Lim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many studies have been conducted on DC transmission. Of power apparatus for DC transmission, High Voltage Direct Current (HVDC) cable systems are being evaluated because of the increase in power demand and transmission distance. Therefore, dc insulation characteristics of Liquid Silicone Rubber (LSR), which has various advantages such as short curing time and the ease of maintenance, were investigated to assess its performance as a HVDC insulation material for cable joints. The electrical performance of LSR added to Nano-Aluminum Trihydrate (ATH) was confirmed by measurements of the breakdown strength and electrical conductivity. In addition, field emission scanning electron microscope (FE-SEM) was used as a means of confirmation of nano-filler dispersion state. The LSR nano-composite was prepared by compounding LSR filled nano-sized ATH filler. The DC insulation properties of LSR added to nano-sized ATH fillers were found to be superior to those of the LSR without filler. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20silicone%20rubber" title="liquid silicone rubber">liquid silicone rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-composite" title=" nano-composite"> nano-composite</a>, <a href="https://publications.waset.org/abstracts/search?q=HVDC%20insulation" title=" HVDC insulation"> HVDC insulation</a>, <a href="https://publications.waset.org/abstracts/search?q=cable%20joints" title=" cable joints"> cable joints</a> </p> <a href="https://publications.waset.org/abstracts/6214/influence-of-nano-ath-on-electrical-performance-of-lsr-for-hvdc-insulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6214.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">462</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">73</span> Effect of Acetic Acid Fermentation on Bioactive Components and Anti-Xanthine Oxidase Activities in Vinegar Brewed from Monascus-Fermented Soybeans</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kyung-Soon%20Choi">Kyung-Soon Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji-Young%20Hwang"> Ji-Young Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-Hee%20Pyo"> Young-Hee Pyo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vinegars have been used as an alternative remedy for treating gout, but the scientific basis remains to be elucidated. In this study, acetic acid fermentation was applied for the first time to Monascus-fermented soybeans to examine its effect on the bioactive components together with the xanthine oxidase inhibitory (XOI) activity of the soy vinegar. The content of total phenols (0.47~0.97 mg gallic acid equivalents/mL) and flavonoids (0.18~0.39 mg quercetin equivallents/mL) were spectrophotometrically determined, and the content of organic acid (10.22~59.76 mg/mL) and isoflavones (6.79~7.46 mg/mL) were determined using HPLC-UV. The analytical method for ubiquinones (0.079~0.276 μg/mL) employed saponification before solvent extraction and quantification using LC-MS. Soy vinegar also showed significant XOI (95.3%) after 20 days of acetic acid fermentation at 30 °C. The results suggest that soy vinegar has potential as a novel medicinal food. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acetic%20acid%20fermentation" title="acetic acid fermentation">acetic acid fermentation</a>, <a href="https://publications.waset.org/abstracts/search?q=bioactive%20component" title=" bioactive component"> bioactive component</a>, <a href="https://publications.waset.org/abstracts/search?q=soy%20vinegar" title=" soy vinegar"> soy vinegar</a>, <a href="https://publications.waset.org/abstracts/search?q=xanthine%20oxidase%20inhibitory%20activity" title=" xanthine oxidase inhibitory activity"> xanthine oxidase inhibitory activity</a> </p> <a href="https://publications.waset.org/abstracts/66060/effect-of-acetic-acid-fermentation-on-bioactive-components-and-anti-xanthine-oxidase-activities-in-vinegar-brewed-from-monascus-fermented-soybeans" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66060.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">72</span> After-Cooling Analysis of RC Structural Members Exposed to High Temperature by Using Numerical Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ju-Young%20Hwang">Ju-Young Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyo-Gyoung%20Kwak"> Hyo-Gyoung Kwak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper introduces a numerical analysis method for reinforced-concrete (RC) structures exposed to fire and compares the result with experimental results. The proposed analysis method for RC structure under the high temperature consists of two procedures. First step is to decide the temperature distribution across the section through the heat transfer analysis by using the time-temperature curve. After determination of the temperature distribution, the nonlinear analysis is followed. By considering material and geometrical nonlinearity with the temperature distribution, nonlinear analysis predicts the behavior of RC structure under the fire by the exposed time. The proposed method is validated by the comparison with the experimental results. Finally, prediction model to describe the status of after-cooling concrete can also be introduced based on the results of additional experiment. The product of this study is expected to be embedded for smart structure monitoring system against fire in u-City. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RC" title="RC">RC</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20temperature" title=" high temperature"> high temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=after-cooling%20analysis" title=" after-cooling analysis"> after-cooling analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20analysis" title=" nonlinear analysis "> nonlinear analysis </a> </p> <a href="https://publications.waset.org/abstracts/17137/after-cooling-analysis-of-rc-structural-members-exposed-to-high-temperature-by-using-numerical-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17137.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">414</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">71</span> Assessing the Seismic Performance of Threaded Rebar Coupler System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Do-Kyu%20Hwang">Do-Kyu Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ho-Young%20Kim"> Ho-Young Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ho-Hyeoung%20Choi"> Ho-Hyeoung Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Gi-Beom%20Park"> Gi-Beom Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Hoon%20Lee"> Jae-Hoon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently there are many use of threaded reinforcing bars in construction fields because those do not need additional screw processing when connecting reinforcing bar by threaded coupler. In this study, reinforced concrete bridge piers using threaded rebar coupler system at the plastic hinge area were tested to evaluate seismic performance. The test results showed that threads of the threaded rebar coupler system could be loosened while under tension-compression cyclic loading because tolerance and rib face angle of a threaded rebar coupler system are greater than that of a conventional ribbed rebar coupler system. As a result, cracks were concentrated just outside of the mechanical coupler and stiffness of reinforced concrete bridge pier decreased. Therefore, it is recommended that connection ratio of mechanical couplers in one section shall be below 50% in order that cracks are not concentrated just outside of the mechanical coupler. Also, reduced stiffness of the specimen should be considered when using the threaded rebar coupler system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reinforced%20concrete%20column" title="reinforced concrete column">reinforced concrete column</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20performance" title=" seismic performance"> seismic performance</a>, <a href="https://publications.waset.org/abstracts/search?q=threaded%20rebar%20coupler" title=" threaded rebar coupler"> threaded rebar coupler</a>, <a href="https://publications.waset.org/abstracts/search?q=threaded%20reinforcing%20bar" title=" threaded reinforcing bar"> threaded reinforcing bar</a> </p> <a href="https://publications.waset.org/abstracts/30560/assessing-the-seismic-performance-of-threaded-rebar-coupler-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30560.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">367</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">70</span> Stability Enhancement of Supported Ionic Liquid Membranes Using Ion Gels for Gas Separation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20H.%20Hwang">Y. H. Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Won"> J. Won</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20S.%20Kang"> Y. S. Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Supported ionic liquid membranes (SILMs) have attracted due to the negligible vapor pressure of ionic liquids (ILs) as well as the high gas selectivity for specific gases such as CO2 or olefin. 1-ethyl-3-methylimidazolium tricyanomethanide ([EMIM][TCM]), 1-butyl-3-methylimidazolium tricyanomethanide ([BMIM][TCM]), show high CO2 solubility, CO2 absorption, rapid CO2 absorption rate and negligible vapor pressure, SILMs using these ILs have been good candidates as CO2 separation membranes. However, SILM has to be operated at a low differential pressure to prevent the solvent from being expelled from the pores of supported membranes. In this paper, we improve the mechanical strength by forming ion gels which provide the stability while it retains the diffusion properties of the liquid stage which affects the gas separation properties. The ion gel was created by the addition of tri-block copolymer, poly(styrene-ethylene oxide-b-styrene) in RTIL. SILM using five different RTILs, are investigated with and without ion gels. The gas permeance were measured and the gas performance with and without the SEOS were investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ion%20gel" title="ion gel">ion gel</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane" title=" membrane"> membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructure" title=" nanostructure"> nanostructure</a> </p> <a href="https://publications.waset.org/abstracts/15496/stability-enhancement-of-supported-ionic-liquid-membranes-using-ion-gels-for-gas-separation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15496.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">312</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">69</span> Numerical Approach of RC Structural MembersExposed to Fire and After-Cooling Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ju-young%20Hwang">Ju-young Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyo-Gyoung%20Kwak"> Hyo-Gyoung Kwak</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Jae%20Yim"> Hong Jae Yim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper introduces a numerical analysis method for reinforced-concrete (RC) structures exposed to fire and compares the result with experimental results. The proposed analysis method for RC structure under the high temperature consists of two procedures. First step is to decide the temperature distribution across the section through the heat transfer analysis by using the time-temperature curve. After determination of the temperature distribution, the nonlinear analysis is followed. By considering material and geometrical non-linearity with the temperature distribution, nonlinear analysis predicts the behavior of RC structure under the fire by the exposed time. The proposed method is validated by the comparison with the experimental results. Finally, Prediction model to describe the status of after-cooling concrete can also be introduced based on the results of additional experiment. The product of this study is expected to be embedded for smart structure monitoring system against fire in u-City. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RC%20structures" title="RC structures">RC structures</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20analysis" title=" heat transfer analysis"> heat transfer analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20analysis" title=" nonlinear analysis"> nonlinear analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=after-cooling%20concrete%20model" title=" after-cooling concrete model"> after-cooling concrete model</a> </p> <a href="https://publications.waset.org/abstracts/1959/numerical-approach-of-rc-structural-membersexposed-to-fire-and-after-cooling-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1959.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">368</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">68</span> Local Politics in Taiwan: The Comparison among Magistrates’ Administrative Satisfaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Edward%20Hwang">Edward Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The efficiency of public policies depends on customer's satisfaction, and the change directions of public policies hinge on customer's assessment; i.e., the performance of public policies in governments is decided by the citizen's administrative satisfaction! The governments in all levels must heave their efficiency and effectiveness of public services to meet the people's substantially multiple needs in order to make citizens trust the governmental operation styles. To pursue the societal equality and justice, governments should treat people equally and provide more services for the disadvantages. The recent Dapu protest event involves Miaoli county Magistrate Liu cheng-hung who arbitrarily demolished houses and destroyed farmlands, and it shifts his popularity into disaffection. Liu case tells us that the political events are lethal to politicians; it cut almost 20% satisfaction degree for Magistrate Liu and hurt KMT support levels nationally. In terms of administrative satisfaction levels, political factors do matter, especially for the derogated events. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=local%20politics" title="local politics">local politics</a>, <a href="https://publications.waset.org/abstracts/search?q=administrative%20satisfaction" title=" administrative satisfaction"> administrative satisfaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Taiwan" title=" Taiwan"> Taiwan</a>, <a href="https://publications.waset.org/abstracts/search?q=customer%20satisfaction" title=" customer satisfaction"> customer satisfaction</a> </p> <a href="https://publications.waset.org/abstracts/13584/local-politics-in-taiwan-the-comparison-among-magistrates-administrative-satisfaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13584.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">455</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">67</span> Tracked Robot with Blade Arms to Enhance Crawling Capability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jhu-Wei%20Ji">Jhu-Wei Ji</a>, <a href="https://publications.waset.org/abstracts/search?q=Fa-Shian%20Chang"> Fa-Shian Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lih-Tyng%20Hwang"> Lih-Tyng Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chih-Feng%20Liu"> Chih-Feng Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeng-Nan%20Lee"> Jeng-Nan Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Shun-Min%20Wang"> Shun-Min Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Kai-Yi%20Cho"> Kai-Yi Cho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a tracked robot with blade arms powered to assist movement in difficult environments. As a result, the tracked robot is able to pass a ramp or climb stairs. The main feature is a pair of blade arms on both sides of the vehicle body working in collaboration with previously validated transformable track system. When the robot encounters an obstacle in a terrain, it enlists the blade arms with power to overcome the obstacle. In disaster areas, there usually will be terrains that are full of broken and complicated slopes, broken walls, rubbles, and ditches. Thereupon, a robot, which is instructed to pass through such disaster areas, needs to have a good off-road capability for such complicated terrains. The robot with crawling-assisting blade arms would overcome the obstacles along the terrains, and possibly become to be a rescue robot. A prototype has been developed and built; experiments were carried out to validate the enhanced crawling capability of the robot. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tracked%20robot" title="tracked robot">tracked robot</a>, <a href="https://publications.waset.org/abstracts/search?q=rescue%20robot" title=" rescue robot"> rescue robot</a>, <a href="https://publications.waset.org/abstracts/search?q=blade%20arm" title=" blade arm"> blade arm</a>, <a href="https://publications.waset.org/abstracts/search?q=crawling%20ability" title=" crawling ability"> crawling ability</a>, <a href="https://publications.waset.org/abstracts/search?q=control%20system" title=" control system"> control system</a> </p> <a href="https://publications.waset.org/abstracts/50959/tracked-robot-with-blade-arms-to-enhance-crawling-capability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50959.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">410</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">66</span> Myeloid Zinc Finger 1/Ets-Like Protein-1/Protein Kinase C Alpha Associated with Poor Prognosis in Patients with Hepatocellular Carcinoma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jer-Yuh%20Liu">Jer-Yuh Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Je-Chiuan%20Ye"> Je-Chiuan Ye</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin-Ming%20Hwang"> Jin-Ming Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protein kinase C alpha (PKCα) is a key signaling molecule in human cancer development. As a therapeutic strategy, targeting PKCα is difficult because the molecule is ubiquitously expressed in non-malignant cells. PKCα is regulated by the cooperative interaction of the transcription factors myeloid zinc finger 1 (MZF-1) and Ets-like protein-1 (Elk-1) in human cancer cells. By conducting tissue array analysis, herein, we determined the protein expression of MZF-1/Elk-1/PKCα in various cancers. The data show that the expression of MZF-1/Elk-1 is correlated with that of PKCα in hepatocellular carcinoma (HCC), but not in bladder and lung cancers. In addition, the PKCα down-regulation by shRNA Elk-1 was only observed in the HCC SK-Hep-1 cells. Blocking the interaction between MZF-1 and Elk-1 through the transfection of their binding domain MZF-160–72 decreased PKCα expression. This step ultimately depressed the epithelial-mesenchymal transition potential of the HCC cells. These findings could be used to develop an alternative therapeutic strategy for patients with the PKCα-derived HCC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=protein%20kinase%20C%20alpha" title="protein kinase C alpha">protein kinase C alpha</a>, <a href="https://publications.waset.org/abstracts/search?q=myeloid%20zinc%20finger%201" title=" myeloid zinc finger 1"> myeloid zinc finger 1</a>, <a href="https://publications.waset.org/abstracts/search?q=ets-like%20protein-1" title=" ets-like protein-1"> ets-like protein-1</a>, <a href="https://publications.waset.org/abstracts/search?q=hepatocellular%20carcinoma" title=" hepatocellular carcinoma"> hepatocellular carcinoma</a> </p> <a href="https://publications.waset.org/abstracts/78123/myeloid-zinc-finger-1ets-like-protein-1protein-kinase-c-alpha-associated-with-poor-prognosis-in-patients-with-hepatocellular-carcinoma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78123.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">227</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">65</span> Defective Autophagy Leads to the Resistance to PP2 in ATG5 Knockout Cells Generated by CRISPR-Cas9 Endonuclease</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sung-Hee%20Hwang">Sung-Hee Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Lee"> Michael Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Upregulated Src activity has been implicated in a variety of cancers. Thus, Src family tyrosine kinase (SFK) inhibitors are often effective cancer treatments. Here, we investigate the role of autophagy in ATG5 knockout cell lines generated by the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas mediated genome editing. The CRISPR-associated protein Cas9 is an RNA-guided DNA endonuclease that uses RNA–DNA complementarity to identify target sites for sequence specific double-stranded DNA (dsDNA) cleavage. Interestingly, ATG5 KO cells clearly showed a greater proliferation rate than WT NIH 3T3 cells, implying that autophagy induction is cytotoxic. Also, the clonogenic survival of ATG5 KO cells was greater than WT cells. The MTT assay revealed that the cytotoxic effect of PP2 was weaker on ATG5 knockout cells than that WT cells. The conversion of non-autophagic LC3-I to autophagic LC3-II and RT-PCR confirmed the functional gene knockout. Furthermore, Cyto-ID autophagy assay also revealed that PP2 failed to induce autophagy in ATG5 knockout cells. Together, our findings suggest that the resistance to PP2 in ATG5 knockout cells is associated with defective autophagy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ATG5%20knockout" title="ATG5 knockout">ATG5 knockout</a>, <a href="https://publications.waset.org/abstracts/search?q=Autophagy" title=" Autophagy"> Autophagy</a>, <a href="https://publications.waset.org/abstracts/search?q=CRISPR%2FCas9" title=" CRISPR/Cas9"> CRISPR/Cas9</a>, <a href="https://publications.waset.org/abstracts/search?q=PP2" title=" PP2"> PP2</a> </p> <a href="https://publications.waset.org/abstracts/50124/defective-autophagy-leads-to-the-resistance-to-pp2-in-atg5-knockout-cells-generated-by-crispr-cas9-endonuclease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50124.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">347</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">64</span> Significance of Tridimensional Volume of Tumor in Breast Cancer Compared to Conventional TNM Stage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jaewoo%20Choi">Jaewoo Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ki-Tae%20Hwang"> Ki-Tae Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Eunyoung%20Ko"> Eunyoung Ko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Backgrounds/Aims: Patients with breast cancer are currently classified according to TNM stage. Nevertheless, the actual volume would be mis-estimated, and it would bring on inappropriate diagnosis. Tridimensional volume-stage derived from the ellipsoid formula was presented as useful measure. Methods: The medical records of 480 consecutive breast cancer between January 2001 and March 2013 were retrospectively reviewed. All patients were divided into three groups according to tumor volume by receiver operating characteristic analysis, and the ranges of each volume-stage were that V1 was below 2.5 cc, V2 was exceeded 2.5 and below 10.9 cc, and V3 was exceeded 10.9 cc. We analyzed outcomes of volume-stage and compared disease-free survival (DFS) and overall survival (OS) between size-stage and volume-stage with variant intrinsic factor. Results: In the T2 stage, there were patients who had a smaller volume than 4.2 cc known as maximum value of T1. These findings presented that patients in T1c had poorer DFS than T2-lesser (mean of DFS 48.7 vs. 51.8, p = 0.011). Such is also the case in OS (mean of OS 51.1 vs. 55.3, p = 0.006). The cumulative survival curves for V1, V2 compared T1, T2 showed similarity in DFS (HR 1.9 vs. 1.9), and so did it for V3 compared T3 (HR 3.5 vs. 2.6) significantly. Conclusion: This study demonstrated that tumor volume had good feasibility on the prognosis of patients with breast cancer. We proposed that volume-stage should be considered for an additional stage indicator, particularly in early breast cancer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title="breast cancer">breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=tridimensional%20volume%20of%20tumor" title=" tridimensional volume of tumor"> tridimensional volume of tumor</a>, <a href="https://publications.waset.org/abstracts/search?q=TNM%20stage" title=" TNM stage"> TNM stage</a>, <a href="https://publications.waset.org/abstracts/search?q=volume%20stage" title=" volume stage"> volume stage</a> </p> <a href="https://publications.waset.org/abstracts/1397/significance-of-tridimensional-volume-of-tumor-in-breast-cancer-compared-to-conventional-tnm-stage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1397.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">403</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> Controlled Synthesis of CdSe Quantum Dots via Microwave-Enhanced Process: A Green Approach for Mass Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Delele%20Worku%20Ayele">Delele Worku Ayele</a>, <a href="https://publications.waset.org/abstracts/search?q=Bing-Joe%20Hwang"> Bing-Joe Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A method that does not employ hot injection techniques has been developed for the size-tunable synthesis of high-quality CdSe quantum dots (QDs) with a zinc blende structure. In this environmentally benign synthetic route, which uses relatively less toxic precursors, solvents, and capping ligands, CdSe QDs that absorb visible light are obtained. The size of the as-prepared CdSe QDs and, thus, their optical properties can be manipulated by changing the microwave reaction conditions. The QDs are characterized by XRD, TEM, UV-vis, FTIR, time-resolved fluorescence spectroscopy, and fluorescence spectrophotometry. In this approach, the reaction is conducted in open air and at a much lower temperature than in hot injection techniques. The use of microwaves in this process allows for a highly reproducible and effective synthesis protocol that is fully adaptable for mass production and can be easily employed to synthesize a variety of semiconductor QDs with the desired properties. The possible application of the as-prepared CdSe QDs has been also assessed using deposition on TiO2 films. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=average%20life%20time" title="average life time">average life time</a>, <a href="https://publications.waset.org/abstracts/search?q=CdSe%20QDs" title=" CdSe QDs"> CdSe QDs</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave%20%28MW%29" title=" microwave (MW)"> microwave (MW)</a>, <a href="https://publications.waset.org/abstracts/search?q=mass%20production%20oleic%20acid" title=" mass production oleic acid"> mass production oleic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=Na2SeSO3" title=" Na2SeSO3"> Na2SeSO3</a> </p> <a href="https://publications.waset.org/abstracts/24759/controlled-synthesis-of-cdse-quantum-dots-via-microwave-enhanced-process-a-green-approach-for-mass-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24759.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">317</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> Anomalous Behaviors of Visible Luminescence from Graphene Quantum Dots</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyunho%20Shin">Hyunho Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaekwang%20Jung"> Jaekwang Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeongho%20Park"> Jeongho Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Sungwon%20Hwang"> Sungwon Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the application of graphene quantum dots (GQDs) to optoelectronic nanodevices, it is of critical importance to understand the mechanisms which result in novel phenomena of their light absorption/emission. The optical transitions are known to be available up to ~6 eV in GQDs, especially useful for ultraviolet (UV) photodetectors (PDs). Here, we present size-dependent shape/edge-state variations of GQDs and visible photoluminescence (PL) showing anomalous size dependencies. With varying the average size (da) of GQDs from 5 to 35 nm, the peak energy of the absorption spectra monotonically decreases, while that of the visible PL spectra unusually shows nonmonotonic behaviors having a minimum at diameter ∼17 nm. The PL behaviors can be attributed to the novel feature of GQDs, that is, the circular-to-polygonal-shape and corresponding edge-state variations of GQDs at diameter ∼17 nm as the GQD size increases, as demonstrated by high resolution transmission electron microscopy. We believe that such a comprehensive scheme in designing device architecture and the structural formulation of GQDs provides a device for practical realization of environmentally benign, high performance flexible devices in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=graphene" title="graphene">graphene</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20dot" title=" quantum dot"> quantum dot</a>, <a href="https://publications.waset.org/abstracts/search?q=size" title=" size"> size</a>, <a href="https://publications.waset.org/abstracts/search?q=photoluminescence" title=" photoluminescence"> photoluminescence</a> </p> <a href="https://publications.waset.org/abstracts/46330/anomalous-behaviors-of-visible-luminescence-from-graphene-quantum-dots" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46330.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">295</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> Rapid Microwave-Enhanced Process for Synthesis of CdSe Quantum Dots for Large Scale Production and Manipulation of Optical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Delele%20Worku%20Ayele">Delele Worku Ayele</a>, <a href="https://publications.waset.org/abstracts/search?q=Bing-Joe%20Hwang"> Bing-Joe Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A method that does not employ hot injection techniques has been developed for the size-tunable synthesis of high-quality CdSe quantum dots (QDs) with a zinc blende structure. In this environmentally benign synthetic route, which uses relatively less toxic precursors, solvents, and capping ligands, CdSe QDs that absorb visible light are obtained. The size of the as-prepared CdSe QDs and, thus, their optical properties can be manipulated by changing the microwave reaction conditions. The QDs are characterized by XRD, TEM, UV-vis, FTIR, time-resolved fluorescence spectroscopy, and fluorescence spectrophotometry. In this approach, the reaction is conducted in open air and at a much lower temperature than in hot injection techniques. The use of microwaves in this process allows for a highly reproducible and effective synthesis protocol that is fully adaptable for mass production and can be easily employed to synthesize a variety of semiconductor QDs with the desired properties. The possible application of the as-prepared CdSe QDs has been also assessed using deposition on TiO2 films. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CdSe%20QDs" title="CdSe QDs">CdSe QDs</a>, <a href="https://publications.waset.org/abstracts/search?q=Na2SeSO3" title=" Na2SeSO3"> Na2SeSO3</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave%20%28MW%29" title=" microwave (MW)"> microwave (MW)</a>, <a href="https://publications.waset.org/abstracts/search?q=oleic%20acid" title=" oleic acid"> oleic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=mass%20production" title=" mass production"> mass production</a>, <a href="https://publications.waset.org/abstracts/search?q=average%20life%20time" title=" average life time"> average life time</a> </p> <a href="https://publications.waset.org/abstracts/28552/rapid-microwave-enhanced-process-for-synthesis-of-cdse-quantum-dots-for-large-scale-production-and-manipulation-of-optical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28552.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">709</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> Indoor Localization by Pattern Matching Method Based on Extended Database</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gyumin%20Hwang">Gyumin Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jihong%20Lee"> Jihong Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper studied the CSS-based indoor localization system which is easy to implement, inexpensive to compose the systems, additionally CSS-based indoor localization system covers larger area than other system. However, this system has problem which is affected by reflected distance data. This problem in localization is caused by the multi-path effect. Error caused by multi-path is difficult to be corrected because the indoor environment cannot be described. In this paper, in order to solve the problem by multi-path, we have supplemented the localization system by using pattern matching method based on extended database. Thereby, this method improves precision of estimated. Also this method is verified by experiments in gymnasium. Database was constructed by 1 m intervals, and 16 sample data were collected from random position inside the region of DB points. As a result, this paper shows higher accuracy than existing method through graph and table. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chirp%20spread%20spectrum" title="chirp spread spectrum">chirp spread spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20localization" title=" indoor localization"> indoor localization</a>, <a href="https://publications.waset.org/abstracts/search?q=pattern-matching" title=" pattern-matching"> pattern-matching</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20of%20arrival" title=" time of arrival"> time of arrival</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-path" title=" multi-path"> multi-path</a>, <a href="https://publications.waset.org/abstracts/search?q=mahalanobis%20distance" title=" mahalanobis distance"> mahalanobis distance</a>, <a href="https://publications.waset.org/abstracts/search?q=reception%20rate" title=" reception rate"> reception rate</a>, <a href="https://publications.waset.org/abstracts/search?q=simultaneous%20localization%20and%20mapping" title=" simultaneous localization and mapping"> simultaneous localization and mapping</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20range%20finder" title=" laser range finder"> laser range finder</a> </p> <a href="https://publications.waset.org/abstracts/4353/indoor-localization-by-pattern-matching-method-based-on-extended-database" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4353.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">244</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> Design of a Robot with a Transformable Track System in Tackling Motion Barrier</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kai-Yi%20Cho">Kai-Yi Cho</a>, <a href="https://publications.waset.org/abstracts/search?q=Fa-Shian%20Chang"> Fa-Shian Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lih-Tyng%20Hwang"> Lih-Tyng Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chih-Feng%20Liu"> Chih-Feng Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeng-Nan%20Lee"> Jeng-Nan Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Shun-Min%20Wang"> Shun-Min Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jhu-Wei%20Ji"> Jhu-Wei Ji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a ground robot which has the tracked transformative structures of the motion mechanism. The robot has a good ability to adapt to the terrain, due to the front end of the track can be deformed, it can more easily pass the more complex area, such as to climb stairs and ramp areas. Usually in the disaster area, where the terrain is generally broken and complicated, there will be many slopes, broken walls, rubble, and obstacles, then if you want the robot through this area, you need to have a good off-road performance for possible complex terrain, this robot with the transformative tracked mechanism has a strong adaptability, it can overcome the limitation of the terrains to be a good rescue robot. Also, the robot has a good flexibility in the shape of contact with the ground; that can adapt the varied terrain by the deformable track, thus able to pass the different terrains, that was verified through the experiments on a test-platform and a field test. The prototype of the robot system has been developed, and experiments are carried out to verify the validity of the proposed design. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tracked%20robot" title="tracked robot">tracked robot</a>, <a href="https://publications.waset.org/abstracts/search?q=rescue%20robot" title=" rescue robot"> rescue robot</a>, <a href="https://publications.waset.org/abstracts/search?q=transformation%20mechanism" title=" transformation mechanism"> transformation mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=deformable%20track" title=" deformable track"> deformable track</a>, <a href="https://publications.waset.org/abstracts/search?q=hull%20design" title=" hull design"> hull design</a> </p> <a href="https://publications.waset.org/abstracts/50960/design-of-a-robot-with-a-transformable-track-system-in-tackling-motion-barrier" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50960.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">330</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=Jihoon%20Hwang&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Jihoon%20Hwang&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Jihoon%20Hwang&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"> 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