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Muljono</title> <meta name="description" content="Search results for: Agung Budi Muljono"> <meta name="keywords" content="Agung Budi Muljono"> <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 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action="https://publications.waset.org/abstracts/search"> <div 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="Agung Budi Muljono"> <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: Agung Budi Muljono</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> Improvement of Transient Voltage Response Using PSS-SVC Coordination Based on ANFIS-Algorithm in a Three-Bus Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I%20Made%20Ginarsa">I Made Ginarsa</a>, <a href="https://publications.waset.org/abstracts/search?q=Agung%20Budi%20Muljono"> Agung Budi Muljono</a>, <a href="https://publications.waset.org/abstracts/search?q=I%20Made%20Ari%20Nrartha"> I Made Ari Nrartha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transient voltage response appears in power system operation when an additional loading is forced to load bus of power systems. In this research, improvement of transient voltage response is done by using power system stabilizer-static var compensator (PSS-SVC) based on adaptive neuro-fuzzy inference system (ANFIS)-algorithm. The main function of the PSS is to add damping component to damp rotor oscillation through automatic voltage regulator (AVR) and excitation system. Learning process of the ANFIS is done by using off-line method where data learning that is used to train the ANFIS model are obtained by simulating the PSS-SVC conventional. The ANFIS model uses 7 Gaussian membership functions at two inputs and 49 rules at an output. Then, the ANFIS-PSS and ANFIS-SVC models are applied to power systems. Simulation result shows that the response of transient voltage is improved with settling time at the time of 4.25 s. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=improvement" title="improvement">improvement</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20voltage" title=" transient voltage"> transient voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=PSS-SVC" title=" PSS-SVC"> PSS-SVC</a>, <a href="https://publications.waset.org/abstracts/search?q=ANFIS" title=" ANFIS"> ANFIS</a>, <a href="https://publications.waset.org/abstracts/search?q=settling%20time" title=" settling time"> settling time</a> </p> <a href="https://publications.waset.org/abstracts/4811/improvement-of-transient-voltage-response-using-pss-svc-coordination-based-on-anfis-algorithm-in-a-three-bus-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4811.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">577</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> Stability Enhancement of a Large-Scale Power System Using Power System Stabilizer Based on Adaptive Neuro Fuzzy Inference System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agung%20Budi%20Muljono">Agung Budi Muljono</a>, <a href="https://publications.waset.org/abstracts/search?q=I%20Made%20Ginarsa"> I Made Ginarsa</a>, <a href="https://publications.waset.org/abstracts/search?q=I%20Made%20Ari%20Nrartha"> I Made Ari Nrartha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A large-scale power system (LSPS) consists of two or more sub-systems connected by inter-connecting transmission. Loading pattern on an LSPS always changes from time to time and varies depend on consumer need. The serious instability problem is appeared in an LSPS due to load fluctuation in all of the bus. Adaptive neuro-fuzzy inference system (ANFIS)-based power system stabilizer (PSS) is presented to cover the stability problem and to enhance the stability of an LSPS. The ANFIS control is presented because the ANFIS control is more effective than Mamdani fuzzy control in the computation aspect. Simulation results show that the presented PSS is able to maintain the stability by decreasing peak overshoot to the value of −2.56 × 10−5 pu for rotor speed deviation Δω2−3. The presented PSS also makes the settling time to achieve at 3.78 s on local mode oscillation. Furthermore, the presented PSS is able to improve the peak overshoot and settling time of Δω3−9 to the value of −0.868 × 10−5 pu and at the time of 3.50 s for inter-area oscillation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ANFIS" title="ANFIS">ANFIS</a>, <a href="https://publications.waset.org/abstracts/search?q=large-scale" title=" large-scale"> large-scale</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20system" title=" power system"> power system</a>, <a href="https://publications.waset.org/abstracts/search?q=PSS" title=" PSS"> PSS</a>, <a href="https://publications.waset.org/abstracts/search?q=stability%20enhancement" title=" stability enhancement"> stability enhancement</a> </p> <a href="https://publications.waset.org/abstracts/56457/stability-enhancement-of-a-large-scale-power-system-using-power-system-stabilizer-based-on-adaptive-neuro-fuzzy-inference-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56457.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">306</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> Single Fly Over as a Solution to Congestion of Intersection Junction: Case Study of Jalan Jatingaleh Semarang</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rachmat%20Mudiyono">Rachmat Mudiyono</a>, <a href="https://publications.waset.org/abstracts/search?q=Siti%20Sumiati"> Siti Sumiati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the next few years, traffic will happen most of the time. This was triggered by the growing rate of vehicles againts the road capacity which is not balance. All the time the congestion in the city of Semarang has been occured at peak hours. Congestion also occured in between Teuku Umar and Setia Budi road Jatingaleh because of a plot intersection (Kesatrian intersection, PLN intersection and Jatingaleh intersection) with the Toll Road. Jatingaleh is located in the southern city of Semarang which is a central meeting point between the upper and lower Semarang where the vehicle flows in through a combination of local current and regional traffic, and the flow of vehicles coming in and out from highway. The main cause of the problems that occurred in the area of Jatingaleh is due to the numbers of vehicles movement that occurs at the intersections. With the above issues, it is necessary to analyse the existing conditions and look into some solutions. Before carrying out an analysis of field surveys at peak hours for example morning (06:00 to 08:00 am) and for the afternoon (04:00 to 06:00 pm)should be conducted, then the number of vehicles is counted manually with “short-breakcounting” according to types of vehicles. From the analysis we found that the degree of saturation (DS) is 1.61 between Teuku Umar and Setia Budi road during the morning peak hours and 1.56 during the afternoon peak hours. This means that the capacity of the existing road is no longer able to accommodate the traffic flow. One of the solutions for the congestion that occurs at the intersection of Jatingaleh is to apply the efficiency of the intersection that is not in a plot with a Fly over, Underpass and the combination of Fly Over-Underpass. Base on the flow reduction calculation with 3 comparative modeling it shows that the Fly Over is the most technically efficient to be applied in this research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=single%20fly%20over" title="single fly over">single fly over</a>, <a href="https://publications.waset.org/abstracts/search?q=congestion" title=" congestion"> congestion</a>, <a href="https://publications.waset.org/abstracts/search?q=intersection" title=" intersection"> intersection</a>, <a href="https://publications.waset.org/abstracts/search?q=interchange" title=" interchange"> interchange</a> </p> <a href="https://publications.waset.org/abstracts/16536/single-fly-over-as-a-solution-to-congestion-of-intersection-junction-case-study-of-jalan-jatingaleh-semarang" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16536.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">392</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> The Used of Ceramic Stove Cover and It’s Gap to the Efficiency of Water Boiling System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agung%20Sugeng%20Widodo">Agung Sugeng Widodo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water boiling system (WBS) using conventional gas stove (CGS) is relatively inefficient unless its mechanism being considered. In this study, an addition of ceramic stove cover (CSC) to a CGS and the gap between CSC and pan have been assessed. Parameters as energy produced by fuel, CSC temperature and water temperature were used to analyze the performance of a CGS. The gaps were varied by 1 – 7 mm in a step of 1 mm. The results showed that a CSC able to increase the performance of a CGS significantly. In certain fuel rate of 0.75 l/m, the efficiency of a CGS obtained in a gap of 4 mm. The best efficiency obtained in this study was 46.4 % due to the optimum condition that achieved simultaneously in convection and radiation heat transfer processes of the heating system. CSC also indicated a good characteristic for covering heat release at the initially of WBS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=WBS" title="WBS">WBS</a>, <a href="https://publications.waset.org/abstracts/search?q=CSC" title=" CSC"> CSC</a>, <a href="https://publications.waset.org/abstracts/search?q=CGS" title=" CGS"> CGS</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=gap" title=" gap"> gap</a> </p> <a href="https://publications.waset.org/abstracts/38101/the-used-of-ceramic-stove-cover-and-its-gap-to-the-efficiency-of-water-boiling-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38101.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">267</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> Low Cost LiDAR-GNSS-UAV Technology Development for PT Garam’s Three Dimensional Stockpile Modeling Needs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohkammad%20Nur%20Cahyadi">Mohkammad Nur Cahyadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Imam%20Wahyu%20Farid"> Imam Wahyu Farid</a>, <a href="https://publications.waset.org/abstracts/search?q=Ronny%20Mardianto"> Ronny Mardianto</a>, <a href="https://publications.waset.org/abstracts/search?q=Agung%20Budi%20Cahyono"> Agung Budi Cahyono</a>, <a href="https://publications.waset.org/abstracts/search?q=Eko%20Yuli%20Handoko"> Eko Yuli Handoko</a>, <a href="https://publications.waset.org/abstracts/search?q=Daud%20Wahyu%20Imani"> Daud Wahyu Imani</a>, <a href="https://publications.waset.org/abstracts/search?q=Arizal%20Bawazir"> Arizal Bawazir</a>, <a href="https://publications.waset.org/abstracts/search?q=Luki%20Adi%20Triawan"> Luki Adi Triawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Unmanned aerial vehicle (UAV) technology has cost efficiency and data retrieval time advantages. Using technologies such as UAV, GNSS, and LiDAR will later be combined into one of the newest technologies to cover each other's deficiencies. This integration system aims to increase the accuracy of calculating the volume of the land stockpile of PT. Garam (Salt Company). The use of UAV applications to obtain geometric data and capture textures that characterize the structure of objects. This study uses the Taror 650 Iron Man drone with four propellers, which can fly for 15 minutes. LiDAR can classify based on the number of image acquisitions processed in the software, utilizing photogrammetry and structural science principles from Motion point cloud technology. LiDAR can perform data acquisition that enables the creation of point clouds, three-dimensional models, Digital Surface Models, Contours, and orthomosaics with high accuracy. LiDAR has a drawback in the form of coordinate data positions that have local references. Therefore, researchers use GNSS, LiDAR, and drone multi-sensor technology to map the stockpile of salt on open land and warehouses every year, carried out by PT. Garam twice, where the previous process used terrestrial methods and manual calculations with sacks. Research with LiDAR needs to be combined with UAV to overcome data acquisition limitations because it only passes through the right and left sides of the object, mainly when applied to a salt stockpile. The UAV is flown to assist data acquisition with a wide coverage with the help of integration of the 200-gram LiDAR system so that the flying angle taken can be optimal during the flight process. Using LiDAR for low-cost mapping surveys will make it easier for surveyors and academics to obtain pretty accurate data at a more economical price. As a survey tool, LiDAR is included in a tool with a low price, around 999 USD; this device can produce detailed data. Therefore, to minimize the operational costs of using LiDAR, surveyors can use Low-Cost LiDAR, GNSS, and UAV at a price of around 638 USD. The data generated by this sensor is in the form of a visualization of an object shape made in three dimensions. This study aims to combine Low-Cost GPS measurements with Low-Cost LiDAR, which are processed using free user software. GPS Low Cost generates data in the form of position-determining latitude and longitude coordinates. The data generates X, Y, and Z values to help georeferencing process the detected object. This research will also produce LiDAR, which can detect objects, including the height of the entire environment in that location. The results of the data obtained are calibrated with pitch, roll, and yaw to get the vertical height of the existing contours. This study conducted an experimental process on the roof of a building with a radius of approximately 30 meters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LiDAR" title="LiDAR">LiDAR</a>, <a href="https://publications.waset.org/abstracts/search?q=unmanned%20aerial%20vehicle" title=" unmanned aerial vehicle"> unmanned aerial vehicle</a>, <a href="https://publications.waset.org/abstracts/search?q=low-cost%20GNSS" title=" low-cost GNSS"> low-cost GNSS</a>, <a href="https://publications.waset.org/abstracts/search?q=contour" title=" contour"> contour</a> </p> <a href="https://publications.waset.org/abstracts/159891/low-cost-lidar-gnss-uav-technology-development-for-pt-garams-three-dimensional-stockpile-modeling-needs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159891.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">94</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> Patent License of Transfer Technology: Challenges and Opportunities in Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agung%20Sujatmiko">Agung Sujatmiko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the purposes of patent licensing was to transfer technology from developed countries to developing countries. For this reason, the role of the patent license agreement was very important and had a function as a tool to achieve technological development. This goal was very good, but in fact, many problems and obstacles arose in its implementation, so the technology transfer that had been implemented had not given good results. For this reason, it was necessary to find a solution so that technology could switch properly. The problem approach used the statutory and conceptual approaches. The analysis used was deductive by analyzing general laws and regulations and then concluding. Several regulations related to technology transfer were the main source to find answers to why technology transfer was difficult to achieve and what caused it. Once the cause was known, a solution would be sought. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=license" title="license">license</a>, <a href="https://publications.waset.org/abstracts/search?q=patent" title=" patent"> patent</a>, <a href="https://publications.waset.org/abstracts/search?q=technology" title=" technology"> technology</a>, <a href="https://publications.waset.org/abstracts/search?q=tie%20in%20clause" title=" tie in clause"> tie in clause</a> </p> <a href="https://publications.waset.org/abstracts/168971/patent-license-of-transfer-technology-challenges-and-opportunities-in-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168971.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">95</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> Improved Accuracy of Ratio Multiple Valuation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julianto%20Agung%20Saputro">Julianto Agung Saputro</a>, <a href="https://publications.waset.org/abstracts/search?q=Jogiyanto%20Hartono"> Jogiyanto Hartono</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Multiple valuation is widely used by investors and practitioners but its accuracy is questionable. Multiple valuation inaccuracies are due to the unreliability of information used in valuation, inaccuracies comparison group selection, and use of individual multiple values. This study investigated the accuracy of valuation to examine factors that can increase the accuracy of the valuation of multiple ratios, that are discretionary accruals, the comparison group, and the composite of multiple valuation. These results indicate that multiple value adjustment method with discretionary accruals provides better accuracy, the industry comparator group method combined with the size and growth of companies also provide better accuracy. Composite of individual multiple valuation gives the best accuracy. If all of these factors combined, the accuracy of valuation of multiple ratios will give the best results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multiple" title="multiple">multiple</a>, <a href="https://publications.waset.org/abstracts/search?q=valuation" title=" valuation"> valuation</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=accuracy" title=" accuracy"> accuracy</a> </p> <a href="https://publications.waset.org/abstracts/57424/improved-accuracy-of-ratio-multiple-valuation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57424.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">282</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> The Application of Animal Welfare for Slaughterhouses in Bali Island</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Budi%20B.%20Leksono">Budi B. Leksono</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustopa"> Mustopa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to determine the application of animal welfare at slaughterhouses in Bali island. The method used is purposive sampling. This study conducted by two slaughterhouses are in Denpasar districts and Badung districts in the Bali island. The result shows the percentage the application of animal welfare when the animal unloading the truck to shelter animal in the Denpasar slaughterhouse is 73.19%, whereas in Badung slaughterhouses are 63.04%. Percentage of the application of animal welfare when shelter animal to slaughter in the Denpasar slaughterhouses is 52.93%, whereas in Badung slaughterhouses are 75.96%. Based on these results, we can conclude that the slaughterhouses in the Bali island has been applying the principles of animal welfare, but needs to increase some aspects of animal welfare. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=animal%20welfare" title="animal welfare">animal welfare</a>, <a href="https://publications.waset.org/abstracts/search?q=Bandung%20slaughterhouses" title=" Bandung slaughterhouses"> Bandung slaughterhouses</a>, <a href="https://publications.waset.org/abstracts/search?q=Bali%20Island" title=" Bali Island"> Bali Island</a>, <a href="https://publications.waset.org/abstracts/search?q=Denpasar%20slaughterhouses" title=" Denpasar slaughterhouses"> Denpasar slaughterhouses</a> </p> <a href="https://publications.waset.org/abstracts/58662/the-application-of-animal-welfare-for-slaughterhouses-in-bali-island" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58662.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">261</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> Preliminary Study of Sediment-Derived Plastiglomerate: Proposal to Classification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agung%20Rizki%20Perdana">Agung Rizki Perdana</a>, <a href="https://publications.waset.org/abstracts/search?q=Asrofi%20Mursalin"> Asrofi Mursalin</a>, <a href="https://publications.waset.org/abstracts/search?q=Adniwan%20Shubhi%20Banuzaki"> Adniwan Shubhi Banuzaki</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Indra%20Novian"> M. Indra Novian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The understanding about sediment-derived plastiglomerate has a wide-range of merit in the academic realm. It can cover discussions about the Anthropocene Epoch in the scope of geoscience knowledge to even provide a solution for the environmental problem of plastic waste. Albeit its importance, very few research has been done regarding this issue. This research aims to create a classification as a pioneer for the study of sediment-derived plastiglomerate. This research was done in Bantul Regency, Daerah Istimewa Yogyakarta Province as an analogue of plastic debris sedimentation process. Observation is carried out in five observation points that shows three different depositional environments, which are terrestrial, fluvial, and transitional environment. The resulting classification uses three parameters and forms in a taxonomical manner. These parameters are composition, degree of lithification, and abundance of matrix respectively in advancing order. There is also a compositional ternary diagram which should be followed before entering the plastiglomerate nomenclature classification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plastiglomerate" title="plastiglomerate">plastiglomerate</a>, <a href="https://publications.waset.org/abstracts/search?q=classification" title=" classification"> classification</a>, <a href="https://publications.waset.org/abstracts/search?q=sedimentary%20mechanism" title=" sedimentary mechanism"> sedimentary mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=microplastic" title=" microplastic"> microplastic</a> </p> <a href="https://publications.waset.org/abstracts/106997/preliminary-study-of-sediment-derived-plastiglomerate-proposal-to-classification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106997.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">131</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> Symbiotic Organism Search (SOS) for Solving the Capacitated Vehicle Routing Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eki%20Ruskartina">Eki Ruskartina</a>, <a href="https://publications.waset.org/abstracts/search?q=Vincent%20F.%20Yu"> Vincent F. Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Budi%20Santosa"> Budi Santosa</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20A.%20N.%20Perwira%20Redi"> A. A. N. Perwira Redi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper introduces symbiotic organism search (SOS) for solving capacitated vehicle routing problem (CVRP). SOS is a new approach in metaheuristics fields and never been used to solve discrete problems. A sophisticated decoding method to deal with a discrete problem setting in CVRP is applied using the basic symbiotic organism search (SOS) framework. The performance of the algorithm was evaluated on a set of benchmark instances and compared results with best known solution. The computational results show that the proposed algorithm can produce good solution as a preliminary testing. These results indicated that the proposed SOS can be applied as an alternative to solve the capacitated vehicle routing problem. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=symbiotic%20organism%20search" title="symbiotic organism search">symbiotic organism search</a>, <a href="https://publications.waset.org/abstracts/search?q=capacitated%20vehicle%20routing%20problem" title=" capacitated vehicle routing problem"> capacitated vehicle routing problem</a>, <a href="https://publications.waset.org/abstracts/search?q=metaheuristic" title=" metaheuristic"> metaheuristic</a> </p> <a href="https://publications.waset.org/abstracts/27109/symbiotic-organism-search-sos-for-solving-the-capacitated-vehicle-routing-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27109.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">634</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> Risk Assessment of Reinforcement System on Fractured Rock Mass, Gate Shaft Project, Jatigede Dam, Sumedang, West Java, Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Ardianto">A. Ardianto</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Putera%20Agung"> M. A. Putera Agung</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Pramusandi"> S. Pramusandi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Power waterway is one of dam structures and as an intake vertical tunnel or well function for hydroelectric power plants in Jatigede area, Sumedang, West Java. Gate shaft is also one of parts the power waterway system. The paper concerns some consideration in determining a critical state parameter on the back stability analysis of gate shaft or excavation wall stability during excavation. Study analysis was carried out using without and with reinforcement system. Results study showed that reinforcement shaft could reduce the total displacement and safety factor could increases significantly. Based on the back calculation results, it was recommended to install some reinforcement materials and drainage system to reduce pore water pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=power%20waterway" title="power waterway">power waterway</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforcement" title=" reinforcement"> reinforcement</a>, <a href="https://publications.waset.org/abstracts/search?q=displacement" title=" displacement"> displacement</a>, <a href="https://publications.waset.org/abstracts/search?q=safety" title=" safety "> safety </a> </p> <a href="https://publications.waset.org/abstracts/12686/risk-assessment-of-reinforcement-system-on-fractured-rock-mass-gate-shaft-project-jatigede-dam-sumedang-west-java-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12686.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">53</span> Designing an Enterprise Architecture for Mining Company by Using Togaf Framework</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rika%20Yuliana">Rika Yuliana</a>, <a href="https://publications.waset.org/abstracts/search?q=Budi%20Rahardjo"> Budi Rahardjo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Role of ICT in the organization will continue to experience growth in line with business growth. However, in reality, there is a gap between ICT initiatives with the development (needs) of company business that is caused by yet inadequate of ICT strategic alignment. Therefore, this study was conducted with the aim to create an enterprise architectural model rule, particularly in mining companies, using the TOGAF framework. The results from the design development phase of the mining enterprise architecture meta model represents the domain of business, applications, data, and technology. The results of the design as a whole were analyzed from four perspectives, namely the perspective of contextual, conceptual, logical and physical. In the end, the quality assessment of the mining enterprise architecture is conducted to assess the suitability of the design standards and architectural principles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20and%20development%20the%20information%20technology%20architecture" title="design and development the information technology architecture">design and development the information technology architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=enterprise%20architecture" title=" enterprise architecture"> enterprise architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=enterprise%20architecture%20design%20result" title=" enterprise architecture design result"> enterprise architecture design result</a>, <a href="https://publications.waset.org/abstracts/search?q=TOGAF%20architecture%20development%20method%20%28ADM%29" title=" TOGAF architecture development method (ADM)"> TOGAF architecture development method (ADM)</a> </p> <a href="https://publications.waset.org/abstracts/42618/designing-an-enterprise-architecture-for-mining-company-by-using-togaf-framework" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42618.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">445</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> Study of Three Channel Electrode Position to Detect Optimum Myoelectric Signal on Five Type Grasp Movement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ilham%20Priadythama">Ilham Priadythama</a>, <a href="https://publications.waset.org/abstracts/search?q=Pringgo%20Widyo%20Laksono"> Pringgo Widyo Laksono</a>, <a href="https://publications.waset.org/abstracts/search?q=Agung%20Pamungkas"> Agung Pamungkas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Myoelectric is prosthetic, flexible, and offered industrial application has been highly developed and widely used. Myoelectric hand use myoelectric signal from muscle to activate and control the membrane part of hand. Commonly myoelectric signal is detected on human arm from skin surface. So that it only small magnitude signal captured. Detecting myoelectric signal on the skin surface takes proper and consistent procedure. This paper provides preliminary study of electrodes position which gives best signal strength for five basic grasping. Two-position scenario used to place three channel electrodes set. A bi-potential amplifier based on AD620 used to amplify the signal. Finally, the signal was analyzed using DSSF3 software. From this study, we found that grasp type was stronger using first scenario electrode placement while the rest type better with another scenario. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=myoelectric%20signal" title="myoelectric signal">myoelectric signal</a>, <a href="https://publications.waset.org/abstracts/search?q=basic%20grasp" title=" basic grasp"> basic grasp</a>, <a href="https://publications.waset.org/abstracts/search?q=DSSF3" title=" DSSF3"> DSSF3</a>, <a href="https://publications.waset.org/abstracts/search?q=electrode" title=" electrode"> electrode</a>, <a href="https://publications.waset.org/abstracts/search?q=bi-potential%20amplifier" title=" bi-potential amplifier"> bi-potential amplifier</a> </p> <a href="https://publications.waset.org/abstracts/42663/study-of-three-channel-electrode-position-to-detect-optimum-myoelectric-signal-on-five-type-grasp-movement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42663.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">324</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> Edge Detection and Morphological Image for Estimating Gestational Age Based on Fetus Length Automatically</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Retno%20Supriyanti">Retno Supriyanti</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Chuzaeri"> Ahmad Chuzaeri</a>, <a href="https://publications.waset.org/abstracts/search?q=Yogi%20Ramadhani"> Yogi Ramadhani</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Haris%20Budi%20Widodo"> A. Haris Budi Widodo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of ultrasonography in the medical world has been very popular including the diagnosis of pregnancy. In determining pregnancy, ultrasonography has many roles, such as to check the position of the fetus, abnormal pregnancy, fetal age and others. Unfortunately, all these things still need to analyze the role of the obstetrician in the sense of image raised by ultrasonography. One of the most striking is the determination of gestational age. Usually, it is done by measuring the length of the fetus manually by obstetricians. In this study, we developed a computer-aided diagnosis for the determination of gestational age by measuring the length of the fetus automatically using edge detection method and image morphology. Results showed that the system is sufficiently accurate in determining the gestational age based image processing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer%20aided%20diagnosis" title="computer aided diagnosis">computer aided diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=gestational%20age" title=" gestational age"> gestational age</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20diameter%20of%20uterus" title=" and diameter of uterus"> and diameter of uterus</a>, <a href="https://publications.waset.org/abstracts/search?q=length%20of%20fetus" title=" length of fetus"> length of fetus</a>, <a href="https://publications.waset.org/abstracts/search?q=edge%20detection%20method" title=" edge detection method"> edge detection method</a>, <a href="https://publications.waset.org/abstracts/search?q=morphology%20image" title=" morphology image"> morphology image</a> </p> <a href="https://publications.waset.org/abstracts/46484/edge-detection-and-morphological-image-for-estimating-gestational-age-based-on-fetus-length-automatically" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46484.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">294</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> Consolidating Service Engineering Ontologies Building Service Ontology from SOA Modeling Language (SoaML)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Purnomo%20Yustianto">Purnomo Yustianto</a>, <a href="https://publications.waset.org/abstracts/search?q=Robin%20Doss"> Robin Doss</a>, <a href="https://publications.waset.org/abstracts/search?q=Suhardi"> Suhardi</a>, <a href="https://publications.waset.org/abstracts/search?q=Novianto%20Budi%20Kurniawan"> Novianto Budi Kurniawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> As a term for characterizing a process of devising a service system, the term ‘service engineering’ is still regarded as an ‘open’ research challenge due to unspecified details and conflicting perspectives. This paper presents consolidated service engineering ontologies in collecting, specifying and defining relationship between components pertinent within the context of service engineering. The ontologies are built by way of literature surveys from the collected conceptual works by collating various concepts into an integrated ontology. Two ontologies are produced: general service ontology and software service ontology. The software-service ontology is drawn from the informatics domain, while the generalized ontology of a service system is built from both a business management and the information system perspective. The produced ontologies are verified by exercising conceptual operationalizations of the ontologies in adopting several service orientation features and service system patterns. The proposed ontologies are demonstrated to be sufficient to serve as a basis for a service engineering framework. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=engineering" title="engineering">engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=ontology" title=" ontology"> ontology</a>, <a href="https://publications.waset.org/abstracts/search?q=service" title=" service"> service</a>, <a href="https://publications.waset.org/abstracts/search?q=SoaML" title=" SoaML"> SoaML</a> </p> <a href="https://publications.waset.org/abstracts/98182/consolidating-service-engineering-ontologies-building-service-ontology-from-soa-modeling-language-soaml" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98182.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">188</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> Developing Ergonomic Prototype Testing Method for Manual Material Handling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yusuf%20Nugroho%20Doyo%20Yekti">Yusuf Nugroho Doyo Yekti</a>, <a href="https://publications.waset.org/abstracts/search?q=Budi%20Praptono"> Budi Praptono</a>, <a href="https://publications.waset.org/abstracts/search?q=Fransiskus%20Tatas%20Dwi%20Atmaji"> Fransiskus Tatas Dwi Atmaji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is no ergonomic prototype testing method for manual material handling yet. This study has been carried out to demonstrate the comprehensive ergonomic assessment. The ergonomic assessment is important to improve safety of products and to ensure usefulness of the product. The prototype testing is conducted by involving few intended users and ordinary people. In this study, there are four operators who participated in several tests. Also, there are 30 ordinary people who joined the usability test. All the ordinary people never do material handling activity nor use material handling device. The methods used in the tests are Rapid Entire Body Assessment (REBA), Recommended Weight Limit (RWL), and Cardiovascular Load (%CVL) other than usability test and questionnaire. The proposed testing methods cover comprehensive ergonomic aspects, i.e. physical aspect, mental aspect, emotional aspects of human. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ergonomic" title="ergonomic">ergonomic</a>, <a href="https://publications.waset.org/abstracts/search?q=manual%20material%20handling" title=" manual material handling"> manual material handling</a>, <a href="https://publications.waset.org/abstracts/search?q=prototype%20testing" title=" prototype testing"> prototype testing</a>, <a href="https://publications.waset.org/abstracts/search?q=assessment" title=" assessment"> assessment</a> </p> <a href="https://publications.waset.org/abstracts/35664/developing-ergonomic-prototype-testing-method-for-manual-material-handling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35664.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">517</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> The Association between Corporate Social Responsibility Disclosure, Assurance, and Tax Aggressiveness: Evidence from Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eko%20Budi%20Santoso">Eko Budi Santoso</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is a growing interest in Corporate Social Responsibility (CSR) issues in developing countries such as Indonesia. Firms disclose their CSR activities, and some provide assurance to gain recognition as socially responsible firms. However, several of those socially responsible firms involve in tax scandals and raise a question of whether CSR disclosure is used to disguise firm misconduct or as a reflection of socially responsible firms. Specifically, whether firms engage in CSR disclosure and its assurance also responsible for their tax matters. This study examines the association between CSR disclosure and tax aggressiveness and the role of sustainability reporting assurance to the association. This research develops a modified index according to global reporting initiatives to measure CSR disclosure and various measurement for tax aggressiveness. Using a sample of Indonesian go public companies issued CSR disclosure, the empirical result shows that there is an association between CSR disclosure and tax aggressiveness. In addition, results also indicate sustainability reporting assurance moderate those association. The findings suggest that stakeholder in developing countries should examine carefully firms with active CSR disclosure before label it as socially responsible firms. JEL Classification: M14 <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CSR%20disclosure" title="CSR disclosure">CSR disclosure</a>, <a href="https://publications.waset.org/abstracts/search?q=tax%20aggressiveness" title=" tax aggressiveness"> tax aggressiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=assurance" title=" assurance"> assurance</a>, <a href="https://publications.waset.org/abstracts/search?q=business%20ethics" title=" business ethics"> business ethics</a> </p> <a href="https://publications.waset.org/abstracts/111465/the-association-between-corporate-social-responsibility-disclosure-assurance-and-tax-aggressiveness-evidence-from-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111465.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">139</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> On Supporting a Meta-Design Approach in Socio-Technical Ontology Engineering</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mesnan%20Silalahi">Mesnan Silalahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Dana%20Indra%20Sensuse"> Dana Indra Sensuse</a>, <a href="https://publications.waset.org/abstracts/search?q=Indra%20Budi"> Indra Budi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many research have revealed the fact of the complexity of ontology building process that there is a need to have a new approach which addresses the socio-technical aspects in the collaboration to reach a consensus. Meta-design approach is considered applicable as a method in the methodological model in a socio-technical ontology engineering. Principles in the meta-design framework is applied in the construction phases on the ontology. A portal is developed to support the meta-design principles requirements. To validate the methodological model semantic web applications were developed and integrated in the portal and also used as a way to show the usefulness of the ontology. The knowledge based system will be filled with data of Indonesian medicinal plants. By showing the usefulness of the developed ontology in a web semantic application, we motivate all stakeholders to participate in the development of knowledge based system of medicinal plants in Indonesia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=socio-technical" title="socio-technical">socio-technical</a>, <a href="https://publications.waset.org/abstracts/search?q=metadesign" title=" metadesign"> metadesign</a>, <a href="https://publications.waset.org/abstracts/search?q=ontology%20engineering%20methodology" title=" ontology engineering methodology"> ontology engineering methodology</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20web%20application" title=" semantic web application"> semantic web application</a> </p> <a href="https://publications.waset.org/abstracts/11822/on-supporting-a-meta-design-approach-in-socio-technical-ontology-engineering" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11822.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">438</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> Development of Terrorist Threat Prediction Model in Indonesia by Using Bayesian Network</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hilya%20Mudrika%20Arini">Hilya Mudrika Arini</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20Aini%20Masruroh"> Nur Aini Masruroh</a>, <a href="https://publications.waset.org/abstracts/search?q=Budi%20Hartono"> Budi Hartono</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are more than 20 terrorist threats from 2002 to 2012 in Indonesia. Despite of this fact, preventive solution through studies in the field of national security in Indonesia has not been conducted comprehensively. This study aims to provide a preventive solution by developing prediction model of the terrorist threat in Indonesia by using Bayesian network. There are eight stages to build the model, started from literature review, build and verify Bayesian belief network to what-if scenario. In order to build the model, four experts from different perspectives are utilized. This study finds several significant findings. First, news and the readiness of terrorist group are the most influent factor. Second, according to several scenarios of the news portion, it can be concluded that the higher positive news proportion, the higher probability of terrorist threat will occur. Therefore, the preventive solution to reduce the terrorist threat in Indonesia based on the model is by keeping the positive news portion to a maximum of 38%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayesian%20network" title="Bayesian network">Bayesian network</a>, <a href="https://publications.waset.org/abstracts/search?q=decision%20analysis" title=" decision analysis"> decision analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20security%20system" title=" national security system"> national security system</a>, <a href="https://publications.waset.org/abstracts/search?q=text%20mining" title=" text mining"> text mining</a> </p> <a href="https://publications.waset.org/abstracts/1453/development-of-terrorist-threat-prediction-model-in-indonesia-by-using-bayesian-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1453.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">392</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> Attitude of Tertiary Students on Multiculturalism in Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Budi%20Annisa%20Sidi">Budi Annisa Sidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Present-day Indonesia maintains a narrative of a culturally plural but unified nation. At the same time, multicultural policies extend different degrees of recognition, accommodation, toleration and even discrimination towards different socio-cultural groups. In conjunction with different ethnographic landscapes across regions in Indonesia, this approach leads to a varied experience and understanding of national identity and multiculturalism among people. As a result, governments seeking to maintain national unity while practicing multiculturalism have to juggle different expectations. This situation is examined through the microcosms of university students using questionnaires followed up by focus group discussions and personal interviews. A comparison between university students across four different provinces in Indonesia (Aceh, Jakarta, West Java and the Moluccas) highlights the influence of one’s surroundings on their perception of multiculturalism. Students in the more heterogeneous areas generally show more acceptance towards diversity compared to students in primarily homogenous areas who have little actual experience in dealing with diversity. Regardless of their environment, students claim to have positive feelings and a strong sense of attachment to Indonesia but hold different ideas of what constitutes an ideal Indonesian national identity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Indonesia" title="Indonesia">Indonesia</a>, <a href="https://publications.waset.org/abstracts/search?q=multiculturalism" title=" multiculturalism"> multiculturalism</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20identity" title=" national identity"> national identity</a>, <a href="https://publications.waset.org/abstracts/search?q=nationalism" title=" nationalism"> nationalism</a> </p> <a href="https://publications.waset.org/abstracts/91973/attitude-of-tertiary-students-on-multiculturalism-in-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91973.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">233</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> The Correlation between of Medicine and Postural Orthostatic Tachycardia Syndrome (POTS) </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dian%20Ariyawati">Dian Ariyawati</a>, <a href="https://publications.waset.org/abstracts/search?q=Romi%20Sukoco"> Romi Sukoco</a>, <a href="https://publications.waset.org/abstracts/search?q=Sinung%20Agung%20Joko"> Sinung Agung Joko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Postural Orthostatic Tachycardia Syndrome (POTS) is a form of orthostatic intolerance caused by autonomic dysfunction. POTS predominantly occurs in young women. Regular exercise has proven to improve the organ system functions, including autonomous systems. The aim of this research was to determine the correlation between exercise frequency and POTS in young women. Method: 510 young women (16-23 years of age) were screened. They were obtained by interview and physical examination. The diagnosis of POTS was performed with Active Stand Test (AST) and heart rate measurement using a pulsemeter. There were 29 young women who suffered from POTS. The exercise frequency was obtained by interview. Data was statistically analyzed using Spearman Correlation test. Result: The subjects’, who tested positive for POTS didn’t perform regular exercise. The Spearman correlation test showed there was a moderate negative correlation between exercise frequency and POTS in young women (r = -0.487, p < 0.00). Conclusion: There is a moderate reverse correlation between exercise frequency and POTS in young women. Further studies are suggested to develop an exercise program for young who suffered from POTS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=POTS" title="POTS">POTS</a>, <a href="https://publications.waset.org/abstracts/search?q=autonomic%20dysfunction" title=" autonomic dysfunction"> autonomic dysfunction</a>, <a href="https://publications.waset.org/abstracts/search?q=exercise%20frequency" title=" exercise frequency"> exercise frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=young%20woman" title=" young woman"> young woman</a> </p> <a href="https://publications.waset.org/abstracts/31900/the-correlation-between-of-medicine-and-postural-orthostatic-tachycardia-syndrome-pots" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31900.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">556</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> R Software for Parameter Estimation of Spatio-Temporal Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Budi%20Nurani%20Ruchjana">Budi Nurani Ruchjana</a>, <a href="https://publications.waset.org/abstracts/search?q=Atje%20Setiawan%20Abdullah"> Atje Setiawan Abdullah</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Gede%20Nyoman%20Mindra%20Jaya"> I. Gede Nyoman Mindra Jaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Eddy%20Hermawan"> Eddy Hermawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we propose the application package to estimate parameters of spatiotemporal model based on the multivariate time series analysis using the R open-source software. We build packages mainly to estimate the parameters of the Generalized Space Time Autoregressive (GSTAR) model. GSTAR is a combination of time series and spatial models that have parameters vary per location. We use the method of Ordinary Least Squares (OLS) and use the Mean Average Percentage Error (MAPE) to fit the model to spatiotemporal real phenomenon. For case study, we use oil production data from volcanic layer at Jatibarang Indonesia or climate data such as rainfall in Indonesia. Software R is very user-friendly and it is making calculation easier, processing the data is accurate and faster. Limitations R script for the estimation of model parameters spatiotemporal GSTAR built is still limited to a stationary time series model. Therefore, the R program under windows can be developed either for theoretical studies and application. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GSTAR%20Model" title="GSTAR Model">GSTAR Model</a>, <a href="https://publications.waset.org/abstracts/search?q=MAPE" title=" MAPE"> MAPE</a>, <a href="https://publications.waset.org/abstracts/search?q=OLS%20method" title=" OLS method"> OLS method</a>, <a href="https://publications.waset.org/abstracts/search?q=oil%20production" title=" oil production"> oil production</a>, <a href="https://publications.waset.org/abstracts/search?q=R%20software" title=" R software"> R software</a> </p> <a href="https://publications.waset.org/abstracts/62320/r-software-for-parameter-estimation-of-spatio-temporal-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62320.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">242</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> Unconventional Hydrocarbon Management Strategy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Edi%20Artono">Edi Artono</a>, <a href="https://publications.waset.org/abstracts/search?q=Budi%20Tamtomo"> Budi Tamtomo</a>, <a href="https://publications.waset.org/abstracts/search?q=Gema%20Wahyudi%20Purnama"> Gema Wahyudi Purnama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The world energy demand increasing extreamly high time by time, including domestic demand. That is impossible to avoid because energy a country demand proportional to surge in the number of residents, economic growth and addition of industrial sector. Domestic Oil and gas conventional reserves depleted naturally while production outcome from reservoir also depleted time to time. In the other hand, new reserve did not discover significantly to replace it all. Many people are investigating to looking for new alternative energy to answer the challenge. There are several option to solve energy fossil needed problem using Unconventional Hydrocarbon. There are four aspects to consider as a management reference in order that Unconventional Hydrocarbon business can work properly, divided to: 1. Legal aspect, 2. Environmental aspect, 3. Technical aspect and 4. Economy aspect. The economic aspect as the key to whether or not a project can be implemented or not in Oil and Gas business scheme, so do Unconventional Hydorcarbon business scheme. The support of regulation are needed to buttress Unconventional Hydorcarbon business grow up and make benefits contribute to Government. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternative%20energy" title="alternative energy">alternative energy</a>, <a href="https://publications.waset.org/abstracts/search?q=unconventional%20hydrocarbon" title=" unconventional hydrocarbon"> unconventional hydrocarbon</a>, <a href="https://publications.waset.org/abstracts/search?q=regulation%20support" title=" regulation support"> regulation support</a>, <a href="https://publications.waset.org/abstracts/search?q=management%20strategy" title=" management strategy"> management strategy</a> </p> <a href="https://publications.waset.org/abstracts/12494/unconventional-hydrocarbon-management-strategy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12494.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">349</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> Exploring the Dualistic Nature of Design: Integrative Perspectives and Methodological Approaches in Design Research</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Joni%20Agung%20Sudarmanto">Joni Agung Sudarmanto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The concept of design has historically been elusive and characterized by its fluidity, leading to divergent viewpoints on its fundamental nature. Guy Julier views design as inherent in material culture, while Sanders sees it as a collective endeavor focusing on the outcome. Design's dualistic nature, procedural and outcome-oriented, spans various domains, including objects, individuals, and the environment. This comprehensive view of design challenges the notion that design practice is distinct from research, highlighting their shared exploratory nature. The article explores methodological techniques in design research and the three prevalent approaches: "into design," "through design," and "for design." The contradictory meanings of design arise from its etymology and its duality as both process and result, leading to its integrative nature across objects, humans, and the environment. The parallels between design and research activities, underscoring their exploratory and knowledge-generating nature, are situated within creative research, challenging the perception of design practice as separate from research endeavors. The "into design" approach encourages interdisciplinary collaboration, enriching design research with diverse perspectives. The "through design" approach bridges theory and practice, producing more practical outcomes. The "for design" approach supports specific design solutions, providing designers with valuable guidance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dualistic%20nature%20of%20design" title="dualistic nature of design">dualistic nature of design</a>, <a href="https://publications.waset.org/abstracts/search?q=integrative%20perspectives" title=" integrative perspectives"> integrative perspectives</a>, <a href="https://publications.waset.org/abstracts/search?q=methodological%20approaches" title=" methodological approaches"> methodological approaches</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20research" title=" design research"> design research</a> </p> <a href="https://publications.waset.org/abstracts/174843/exploring-the-dualistic-nature-of-design-integrative-perspectives-and-methodological-approaches-in-design-research" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174843.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">71</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> Identifying Future Helminth Zoonotic in Indonesian Slow Loris (Nycticebus coucang)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nafisatul%20Ulfa">Nafisatul Ulfa</a>, <a href="https://publications.waset.org/abstracts/search?q=Elok%20Budi%20Retnani"> Elok Budi Retnani</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20P.%20Agus%20Lelana"> R. P. Agus Lelana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Emerging zoonotic parasite infection could originate in wildlife so its time very important to identify zoonotic agents in wild populations or maintained. According to the International Union Conservation of Nature (IUCN), Sumateran slow loris (Nycticebus coucang) was protected primate which have vulnerable status. Their population in wildlife decreased cause hunting for trade and destroy habitat. Helminthiasis can caused dead regularly and its so The study was conducted to know prevalence of gastrointestinal helminth infection of slow loris (Nycticebus coucang) in The Centre of Primate Rehabilitation of International Animal Rescue Indonesia (YIARI). Total of 13 fecal sampel from captive group of Nycticebus coucang were collected for 6 days and analysed from Februari-Mei 2014 by using McMaster, flotasion and Baermann technique. All fecal sampel was examined based on its fecal pool. Out of 13 fecal sampel examined, all of sampel (100%) was infected with five types of helminth Ascaris (84,61%), Hymenolepis (76,92%), Strongylid (61,54%), Oxyurid (15,38%) dan Trichuris (7,69%). The average number of egg per gram (EPG) was 11-1810. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fecal" title="fecal">fecal</a>, <a href="https://publications.waset.org/abstracts/search?q=helminth" title=" helminth"> helminth</a>, <a href="https://publications.waset.org/abstracts/search?q=Nycticebus%20coucang" title=" Nycticebus coucang"> Nycticebus coucang</a>, <a href="https://publications.waset.org/abstracts/search?q=parasite" title=" parasite"> parasite</a>, <a href="https://publications.waset.org/abstracts/search?q=prevalence" title=" prevalence"> prevalence</a>, <a href="https://publications.waset.org/abstracts/search?q=slow%20loris" title=" slow loris"> slow loris</a> </p> <a href="https://publications.waset.org/abstracts/18321/identifying-future-helminth-zoonotic-in-indonesian-slow-loris-nycticebus-coucang" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18321.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">563</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> Protein and MDA (Malondialdehyde) Profil of Bull Sperm and Seminal Plasma After Freezing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sri%20Rahayu">Sri Rahayu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Dwi%20Susan"> M. Dwi Susan</a>, <a href="https://publications.waset.org/abstracts/search?q=Aris%20Soewondo"> Aris Soewondo</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20M.%20Agung%20Pramana"> W. M. Agung Pramana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Semen is an organic fluid (seminal plasma) that contain spermatozoa. Proteins are one of the major seminal plasma components that modulate sperm functionality, influence sperm capacitation and maintaining the stability of the membrane. Semen freezing is a procedure to preserve sperm cells. The process causes decrease in sperm viability due to temperature shock and oxidation stress. Oxidation stress is a disturbance on phosphorylation that increases ROS concentration, and it produces lipid peroxide in spermatozoa membrane resulted in high MDA (malondialdehyde) concentration. The objective of this study was to examine the effect of freezing on protein and MDA profile of bovine sperm cell and seminal plasma after freezing. Protein and MDA of sperm cell and seminal plasma were isolated from 10 sample. Protein profiles was analyzed by SDS PAGE with separating gel 12,5 %. The concentration of MDA was measured by spectrophotometer. The results of the research indicated that freezing of semen cause lost of the seminal plasma proteins with molecular with 20, 10, and 9 kDa. In addition, the result research showed that protein of the sperm (26, 10, 9, 7, and 6 kDa) had been lost. There were difference MDA concentration of seminal plasma and sperm cell were increase after freezing. MDA concentration of seminal plasma before and after freezing were 2.2 and 2.4 nmol, respectively. MDA concentration of sperm cell before and after freezing were 1,5 and 1.8 nmol, respectively. In conclusion, there were differences protein profiles of spermatozoa before and after semen freezing and freezing cause increasing of the MDA concentration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MDA" title="MDA">MDA</a>, <a href="https://publications.waset.org/abstracts/search?q=semen%20freezing" title=" semen freezing"> semen freezing</a>, <a href="https://publications.waset.org/abstracts/search?q=SDS%20PAGE" title=" SDS PAGE"> SDS PAGE</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20profile" title=" protein profile"> protein profile</a> </p> <a href="https://publications.waset.org/abstracts/9455/protein-and-mda-malondialdehyde-profil-of-bull-sperm-and-seminal-plasma-after-freezing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9455.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">275</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> Kinetic and Thermodynamic Modified Pectin with Chitosan by Forming Polyelectrolyte Complex Adsorbent to Remediate of Pb(II)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Budi%20Hastuti">Budi Hastuti</a>, <a href="https://publications.waset.org/abstracts/search?q=Mudasir"> Mudasir</a>, <a href="https://publications.waset.org/abstracts/search?q=Dwi%20Siswanta"> Dwi Siswanta</a>, <a href="https://publications.waset.org/abstracts/search?q=Triyono"> Triyono</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Biosorbent, such as pectin and chitosan, are usually produced with low physical stability, thus the materials need to be modified. In this research, the physical characteristic of adsorbent was increased by grafting chitosan using acetate carboxymetyl chitosan (CC). Further, CC and Pectin (Pec) were crosslinked using cross-linking agent BADGE (bis phenol A diglycidyl ether) to get CC-Pec-BADGE (CPB) adsorbent. The cross-linking processes aim to form stable structure and resistance on acidic media. Furthermore, in order to increase the adsorption capacity in removing Pb(II), the adsorbent was added with NaCl to form macroporous adsorbent named CCPec-BADGE-Na (CPB-Na). The physical and chemical characteristics of the porogenic adsorbent structure were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). The adsorption parameter of CPB-Na to adsorb Pb(II) ion was determined. The kinetics and thermodynamics of the bath sorption of Pb(II) on CPB-Na adsorbent and using chitosan and pectin as a comparison were also studied. The results showed that the CPB-Na biosorbent was stable on acidic media. It had a rough and porous surface area, increased and gave higher sorption capacity for removal of Pb(II) ion. The CPB-Na 1/1 and 1/3 adsorbent adsorbed Pb(II) with adsorption capacity of 45.48 mg/g and 45.97 mg/g respectively, whereas pectin and chitosan were of 39.20 mg /g and 24.67 mg /g respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porogen" title="porogen">porogen</a>, <a href="https://publications.waset.org/abstracts/search?q=Pectin" title=" Pectin"> Pectin</a>, <a href="https://publications.waset.org/abstracts/search?q=Carboxymethyl%20Chitosan%20%28CC%29" title=" Carboxymethyl Chitosan (CC)"> Carboxymethyl Chitosan (CC)</a>, <a href="https://publications.waset.org/abstracts/search?q=CC-%20Pec-BADGE-Na" title=" CC- Pec-BADGE-Na"> CC- Pec-BADGE-Na</a> </p> <a href="https://publications.waset.org/abstracts/91832/kinetic-and-thermodynamic-modified-pectin-with-chitosan-by-forming-polyelectrolyte-complex-adsorbent-to-remediate-of-pbii" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91832.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">158</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> Sulfide Removal from Liquid Using Biofilm on Packed Bed of Salak Fruit Seeds </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Retno%20Ambarwati%20Sigit%20Lestari">Retno Ambarwati Sigit Lestari</a>, <a href="https://publications.waset.org/abstracts/search?q=Wahyudi%20Budi%20Sediawan"> Wahyudi Budi Sediawan</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarto%20Sarto"> Sarto Sarto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study focused on the removal of sulfide from liquid solution using biofilm on packed bed of salak fruit seeds. Biofilter operation of 444 hours consists of 6 phases of operation. Each phase lasted for approximately 72 hours to 82 hours and run at various inlet concentration and flow rate. The highest removal efficiency is 92.01%, at the end of phase 7 at the inlet concentration of 60 ppm and the flow rate of 30 mL min-1. Mathematic model of sulfide removal was proposed to describe the operation of biofilter. The model proposed can be applied to describe the removal of sulfide liquid using biofilter in packed bed. The simulation results the value of the parameters in process. The value of the rate maximum spesific growth is 4.15E-8 s-1, Saturation constant is 9.1E-8 g cm-3, mass transfer coefisient of liquid is 0.5 cm s-1, Henry’s constant is 0.007, and mass of microorganisms growth to mass of sulfide comsumed is 30. The value of the rate maximum spesific growth in early process is 0.00000004 s-1. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biofilm" title="biofilm">biofilm</a>, <a href="https://publications.waset.org/abstracts/search?q=packed%20bed" title=" packed bed"> packed bed</a>, <a href="https://publications.waset.org/abstracts/search?q=removal" title=" removal"> removal</a>, <a href="https://publications.waset.org/abstracts/search?q=sulfide" title=" sulfide"> sulfide</a>, <a href="https://publications.waset.org/abstracts/search?q=salak%20fruit%20seeds." title=" salak fruit seeds. "> salak fruit seeds. </a> </p> <a href="https://publications.waset.org/abstracts/75324/sulfide-removal-from-liquid-using-biofilm-on-packed-bed-of-salak-fruit-seeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75324.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">194</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> Universality as Opportunity Domain behind the Threats and Challenges of Natural Disasters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kunto%20Wibowo%20Agung%20Prodjonoto">Kunto Wibowo Agung Prodjonoto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Occasionally, opportunities occur not due to chances but threats. This, however, is often not realized because a greater threat is perceived to be anything that threatens, endangers, or harms, resulting in bad impacts that are also part of the risk and consequence. As a result, more focus tends to direct towards the bad impacts. Risk, in this case, shall be seen rather as something challenging, which can turn to be an opportunity to tackle an obstacle. Therefore, it does not seem exaggerating if later, risk can be considered as a challenge that presents an opportunity. So as in the context of the threat of natural disasters which gives an idea that opportunities exist. Nature referred to in a fashion as 'natural disasters' captured an expression to picture the 'threats' aspect, which instructively implying a chance of opportunity. This is quite logical, as SWOT (strengths, weaknesses, opportunities, threats) analysis can evaluate the situation at hand related to the analysis of various factors in formulating strategies to deal with natural disaster situations. The analytical method created by Albert Humphrey is indeed not an analytical tool to provide solutions, but certainly 'opportunities and challenges' are discussed therein on a vertical line, where opportunities are posited on the positive axis, and threats are posed on the negative axis. Observing this dynamism, the challenges and threats of disasters are having opportunity relevance to moralizing opportunities, that by quality poses universalism populist characteristics, universalism characteristics, and regional characteristics. Here, universalism appears as an opportunity domain underneath the threats and challenges of natural disasters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=universality" title="universality">universality</a>, <a href="https://publications.waset.org/abstracts/search?q=opportunities" title=" opportunities"> opportunities</a>, <a href="https://publications.waset.org/abstracts/search?q=threats" title=" threats"> threats</a>, <a href="https://publications.waset.org/abstracts/search?q=challenges%20of%20natural%20disasters" title=" challenges of natural disasters"> challenges of natural disasters</a> </p> <a href="https://publications.waset.org/abstracts/114198/universality-as-opportunity-domain-behind-the-threats-and-challenges-of-natural-disasters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114198.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">151</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> Techno-Economic Study on the Potential of Dimethyl Ether (DME) as a Substitute for LPG</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Widya%20Anggraini%20Pamungkas">Widya Anggraini Pamungkas</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosana%20Budi%20Setyawati"> Rosana Budi Setyawati</a>, <a href="https://publications.waset.org/abstracts/search?q=Awaludin%20Fitroh%20Rifai"> Awaludin Fitroh Rifai</a>, <a href="https://publications.waset.org/abstracts/search?q=Candra%20Pangesti%20Setiawan"> Candra Pangesti Setiawan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anatta%20Wahyu%20Budiiman"> Anatta Wahyu Budiiman</a>, <a href="https://publications.waset.org/abstracts/search?q=Inayati"> Inayati</a>, <a href="https://publications.waset.org/abstracts/search?q=Joko%20Waluyo"> Joko Waluyo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunu%20Herwi%20Pranolo"> Sunu Herwi Pranolo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increase in LPG consumption in Indonesia is not balanced with the amount of supply. The high demand for LPG due to the success of the government's kerosene-to-LPG conversion program and the Covid-19 pandemic in 2020 led to an increase in LPG consumption in the household sector and caused Indonesia's trade balance to experience a deficit. The high consumption of LPG encourages the need for alternative fuels as a substitute or which aims to substitute LPG; one of the materials that can be used is Dimethyl Ether (DME). Dimethyl ether (DME) is an organic compound with the chemical formula CH 3. OCH 3 has a high cetane number and has characteristics similar to LPG. DME can be produced from various sources, such as coal, biomass and natural gas. Based on the economic analysis conducted at 10% IRR, coal has the largest NPV of Rp. 20,034,837,497,241 with a payback period of 3.86 years, then biomass with an NPV of Rp. 10,401,526,072,850 and a payback period of 5.16. the latter is natural gas with an NPV of IDR 7,401,272,559,191 and a payback period of 6.17 years. Of the three sources of raw materials used, if the sensitivity is calculated using the selling price of DME equal to the selling price of LPG, it will get an NPV value that is greater than the NPV value when using the current DME price. The advantages of coal as a raw material for DME are not only because it is profitable, namely: low price and abundant resources, but has high greenhouse gas emissions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LPG" title="LPG">LPG</a>, <a href="https://publications.waset.org/abstracts/search?q=DME" title=" DME"> DME</a>, <a href="https://publications.waset.org/abstracts/search?q=coal" title=" coal"> coal</a>, <a href="https://publications.waset.org/abstracts/search?q=biomass" title=" biomass"> biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20gas" title=" natural gas"> natural gas</a> </p> <a href="https://publications.waset.org/abstracts/161115/techno-economic-study-on-the-potential-of-dimethyl-ether-dme-as-a-substitute-for-lpg" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161115.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> 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