2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)最新文献_第2页

Integrated and heuristic methods for maximizing the lifetime of wireless sensor networks with optimal base station location for disaster forecast 基于最优基站位置的灾害预测无线传感器网络寿命最大化集成启发式方法

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391854

Le Khac Tuan, N. H. Nam, N. Hanh, Huynh Thi Thanh Binh

引用次数: 1

Life cycle validation study of algal biofuels in Philippines via CML impact assessment 通过CML影响评估，菲律宾藻类生物燃料的生命周期验证研究

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391871

A. Ubando, N. Toledo, Ivan Henderson V. Gue, S. Garibay, A. Mayol, C. Jimenez, Charles B. Felix, J. B. Biona, Christian Joseph Ronquillo, A. Culaba

{"title":"Life cycle validation study of algal biofuels in Philippines via CML impact assessment","authors":"A. Ubando, N. Toledo, Ivan Henderson V. Gue, S. Garibay, A. Mayol, C. Jimenez, Charles B. Felix, J. B. Biona, Christian Joseph Ronquillo, A. Culaba","doi":"10.1109/R10-HTC.2015.7391871","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391871","url":null,"abstract":"Biodiesel is seen as one of the promising alternatives for fossil-based fuels while reducing the carbon dioxide emissions. However, as first generation biodiesels are derived from food crops, the concern on food versus fuel heightens. As such, algal biodiesel is perceived as a solution to this problem, due to its lesser land requirement while having high oil yield compared to biofuels derived from conventional feedstocks. As the Philippines is considered as a thriving habitat for numerous microalgae species in the tropics, it offers a big potential for algae biofuel production. However, like any other bioenergy system, algal biofuels require natural resource consumption and entails environmental impact. Hence, a life cycle assessment approach is proposed in this study to assess the current microalgae cultivation setup in the Philippines. A validation study is conducted to compare the results of an aquaculture setup in the Philippines and a cultivation system by Khoo et al. (2011). The functional unit used is 1 ton algal biodiesel. The results of the study revealed that the cultivation system found in the Philippines has performed well as compared to Khoo et al. (2011), in terms of the impact assessment and energy consumption. However, the study also found that the energy return on energy invested (EROEI) of the two models were less than the benchmark value of one. Thus, the result of this study can be used to improve the EROEI of the algal biodiesel life cycle in the Philippines.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133951726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

An innovative wireless digital microscope for enhanced malaria detection and telepathology in remote villages 一种创新的无线数码显微镜，用于加强偏远村庄的疟疾检测和远程病理学

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391855

Venkatesh Vadde, S. Shivkumar, Anuja Kulkarni

引用次数: 2

Application of ant colony optimization on transport route of algal biofuels in the Philippines 蚁群优化在菲律宾藻类生物燃料运输路线上的应用

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391852

Ivan Henderson V. Gue, Charles B. Felix, A. Mayol, A. Ubando

{"title":"Application of ant colony optimization on transport route of algal biofuels in the Philippines","authors":"Ivan Henderson V. Gue, Charles B. Felix, A. Mayol, A. Ubando","doi":"10.1109/R10-HTC.2015.7391852","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391852","url":null,"abstract":"In recent years, an increase of research on microalgae have been seen due its promising potential as an alternative feedstock for biofuel. It offers high oil yield per land area compared to the first and second generation biofuel feedstock. Given the tropical climate and the archipelagic structure of the Philippine islands, it provides a thriving habitat for more than a thousand species of microalgae. Hence, abundance of microalgae species are found in the country. However, the archipelagic structure of the country also may come as a disadvantage as the transportation of biofuels may require varying shipping routes. In life-cycle assessment of biofuels, transportation is one of the sources of environmental emissions. Thus, minimizing the distance travelled by the ship can dramatically reduce the energy usage and environmental impact of the transportation process. This study proposes an ant colony optimization (ACO) method in determining the optimal route between the different ports in the Philippines. The results in the study showed that the choice of vehicle used has significant impacts on the total shipping distance travelled. This study can be further expanded with the inclusion of time windows.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125939904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Design of a solar powered LED lighting system using the dual axis tracking system 采用双轴跟踪系统的太阳能LED照明系统的设计

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391847

M. Pacis, K. D. Estoy, L. C. Pepito, J. Martinez, N. Linsangan

{"title":"Design of a solar powered LED lighting system using the dual axis tracking system","authors":"M. Pacis, K. D. Estoy, L. C. Pepito, J. Martinez, N. Linsangan","doi":"10.1109/R10-HTC.2015.7391847","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391847","url":null,"abstract":"During the past few years, researchers and technology of solar energy have progressed immensely. Energy is abundant in the earth and the source is the sun. This paper focuses on small scale outdoor lighting systems. This is a stand-alone lighting system that gets power from the sun by using a solar module during daytime. It has automatic switching and dimmer photosensor that operates when there is no light from the sun detected. However, storing more energy in the battery is one challenge. Currents of high value that is enough to charge the battery safely is required and depends on the amount of light energy from the sun. Stationary modules will only have maximum current at noon. The researchers included a tracker system to follow the sun's position so the current is higher throughout the day. To know which design is better, the researchers conducted a test that determines the performance of with tracker and without a tracker. Another test will be conducted regarding with the dimmer. The energy consumption of the LED light will be observed by using without dimmer and with dimmer. The result shows that current boosts the charging when tracker is ON. Dual axis trackers can compensate for the energy used by the motors for tracking. The auto-dimmer saves the charge used in the battery while supplying the appropriate light in the surrounding.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127147651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Opto-electric characterization of pH test strip based on optical absorbance using tri-chromatic LED and phototransistor 基于光吸收的三色LED和光电晶体管的pH测试条的光电特性

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391846

I. Valenzuela, F. Cruz

{"title":"Opto-electric characterization of pH test strip based on optical absorbance using tri-chromatic LED and phototransistor","authors":"I. Valenzuela, F. Cruz","doi":"10.1109/R10-HTC.2015.7391846","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391846","url":null,"abstract":"Optical pH measurement commonly uses a strip of paper with embedded indicator. A pH test strip which has four (4) test pads changes its color when it is dipped in a sample solution. The color change is compared to the color chart to identify the pH value of the sample solution. The purpose of this study is to extract the parameter of an optoelectronic pH sensor based on the hue absorbance of the pH test strip and be implemented on Simulation Program with Integrated Circuit Emphasis (SPICE). Through experiments using a devised sensor module, highest linearity is obtained when the ILED is 20 mA. The sensitivity of the device at pad 1 is 0.4217 mV/pH with a correlation coefficient of 0.8177, pad 2 is 0.3667 V/pH with a correlation coefficient of 0.9597, pad 3 is 0.2659 V/pH with a correlation coefficient of 0.0.9923, and pad 4 is 0.0347 V/pH with a correlation coefficient of 0.9948. It outputs the RGB Hue levels (in voltage) of the pH test strip. Optoelectric characteristics of the pH sensor are described by the result acquired in the experiments on parameter extraction. The transconductance of the device is derived based on the phototransistor current and pH-dependent voltage. The extracted parameters used on the equivalent circuit of the optoelectronic pH sensor is simulated on SPICE. The percent error between the responses on experimental and simulation of the test pads 1, 2, 3 and 4 are 10.28%, 0.01%, 0.34% and 0.86% respectively. Based on these results, an optoelectronic pH sensor model is developed.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"1951 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129302441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Piezoceramic materials for energy harvesting on 3D printed unmanned aerial vehicles: A feasibility study 用于3D打印无人机能量收集的压电陶瓷材料:可行性研究

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391845

N. Nicholas, Basaran Bahadir Kocer, E. Kayacan, Y. Yee

{"title":"Piezoceramic materials for energy harvesting on 3D printed unmanned aerial vehicles: A feasibility study","authors":"N. Nicholas, Basaran Bahadir Kocer, E. Kayacan, Y. Yee","doi":"10.1109/R10-HTC.2015.7391845","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391845","url":null,"abstract":"This study aims to investigate the feasibility of vibrational energy harvesting through extracting aircraft vibrational displacements with the aid of piezoceramic materials on the wing section of a self-designed and 3D-printed unmanned aerial vehicle (UAV). The piezoceramic materials are placed at different locations of the wing section to harvest the possible maximum voltage output. The design of the airfoil is chosen as to replicate the existing military type UAVs today. The experiments were carried out on a UAV prototype with a wing span of 0.54m at 20m/s using two different sized piezoceramic materials. The experiments were conducted in a wind tunnel for simulating the flight conditions in a more realistic manner. To further improve the performance of the energy harvesting system throughout the experiments, some modifications were made where the magnet strips are located at the top and bottom of the wing section. The magnet strips were found to excite further vibrations to produce a larger average voltage output, e.g. 613mV. The real time experiments have shown the potential and efficiency of using such energy harvesting methods in UAVs to provide local energy sources for wireless sensors. However, increasing the flight endurance of the prototype based on this implementation has not been proven to be feasible due to the inconsistency in the vibrations on the wings and the trade-offs of additional weights of the piezoceramics on the prototype.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129509849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Optimal antenna position analysis for in campus information dissemination through digital TV broadcasting 校园数字电视广播信息传播的最佳天线位置分析

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391859

J. D. dela Cruz, A. Ballado, Flordeliza L. Valiente, Patrick Russell Cajili, Felix Jasper Carranza, John Derick Flores, Almer Jay Uy

{"title":"Optimal antenna position analysis for in campus information dissemination through digital TV broadcasting","authors":"J. D. dela Cruz, A. Ballado, Flordeliza L. Valiente, Patrick Russell Cajili, Felix Jasper Carranza, John Derick Flores, Almer Jay Uy","doi":"10.1109/R10-HTC.2015.7391859","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391859","url":null,"abstract":"In the advent of the conversion of analog to digital broadcasting, many of the countries including the Philippines have started adopting the standard for Digital Television (DTV) Broadcasting. With this step towards advancement, Mapua Institute of Technology would be providing a digital broadcast laboratory for its students to be ready with up-to-date technology. Part of the set-up is a realtime in-campus digital TV broadcast facility which can be used for information dissemination for the school community. The broadcast facility operates at 479 MHz, ISDB-T standard, 6 MHz BW, 13 segment 64 QAM with 1 W transmitting power. Optimum location for the four transmitting antenna in Mapua Intramuros Campus were identified by conducting indoor test measurements using signal level meter, signal level checker and one-segment mobile receiver. Three trial locations for the four proposed antenna positions were evaluated with a total of 2200 signal measurements. Field strength, delay profile, spectrum and constellations were measured and analyzed. Theoretical computations for field strength are compared to actual test results. A MATLAB program for contour mapping is provided for visual representations of signal spread. As expected, the study were able to prove the presence of interference, multipath and other factors like concrete and metal structures as well as human beings affecting the transmission and reach of each wall mounted antenna in a designated area. It is recommended to deploy additional Skywallie antenna for campus wide coverage. Although, educational license allowed us to operate at 479 MHz with 1 W power, increasing transmitter power will improve signal coverage. In addition, increasing the number of test points will produce more accurate measurements.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132507877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization model in microalgae based biodiesel supply chain: A case study in the Philippines 基于微藻的生物柴油供应链优化模型:以菲律宾为例

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391858

A. J. Manalac, A. Ubando

{"title":"Optimization model in microalgae based biodiesel supply chain: A case study in the Philippines","authors":"A. J. Manalac, A. Ubando","doi":"10.1109/R10-HTC.2015.7391858","DOIUrl":"https://doi.org/10.1109/R10-HTC.2015.7391858","url":null,"abstract":"Microalgae biodiesel has gained significant support from the research community as a potential source of renewable energy due to its high productivity, flexibility, and wide range of by-products that improves its profitability. The Philippines is a good candidate for algal-based biodiesel production since it has abundant resources and tropical climate that can support its production. However, due to the archipelagic nature of the Philippines, the location of production site and target market should be considered carefully since it will have direct impact to the final cost of the biodiesel product and its carbon footprint due to transportation. Land and sea transportation routes are available to deliver the product to its consumers. This paper focus on the distribution system from production site to city local oil depot's scattered throughout the Philippines. A simple fictional case study is presented where distances used are in the same scale as the transportation routes possible in the Philippines. Carbon dioxide (CO2) emission and cost are the main criteria in judging the viability of the pathways from production sites to oil depots. Multi-criteria desirability function by Derringer and Suich is used to determine the aggregate desirability from the two criteria. Priority factors in the desirability function were varied in two case studies where cost is prioritized over emissions and vise versa. The model has demonstrated good sensitivity to the change of desirability factors. Land transportation is favored for cost effectiveness while sea transportation is favored in terms of CO2 emissions. The results of the study could be further improved by using actual data and obtaining priority factors from AHP or ANP to capture the priorities of the stake holders.","PeriodicalId":122465,"journal":{"name":"2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123574539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Education system of skill succession based on 3D evaluation and improvement in time series 基于时间序列三维评价与改进的技能继承教育体系

2015 IEEE Region 10 Humanitarian Technology Conference (R10-HTC) Pub Date : 2015-12-01 DOI: 10.1109/R10-HTC.2015.7391856

K. Mitsuhashi, H. Hashimoto, Sanggyu Shin, S. Yokota, D. Chugo

引用次数: 0