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International Conference on Electrical engineering and informatics, ICEEI

作者： Fiqih Tri Fathulah Rusfa Farkhad Ihsan Hariadi Arif Sasongko Institut Teknologi Bandung Bandung Jawa Barat ID Electrical Engineering Study Program School of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung Indonesia

Spindle motor (three-phase asynchronous AC motor) is an important part of Computer Numerical Control (CNC) Printed Circuit Board (PCB) milling machine, which plays role to engrave the copper layer based on the PCB pattern design. To perform the engraving processes, it is necessary to adjust the spindle motor speed in accordance with the PCB material used. This paper presents the results of implementing a three-phase spindle-motor speed controller based on Field programmable Gate Array (FPGA). The control method used is fixed Voltage/Frequency (V/F) with Sinusoidal Pulse Width Modulation (SPWM) technique, so that the maximum torque of the motor can be maintained and the harmonic signals can be minimized. This sub-module consists of two main components, namely FPGA and three-phase inverter, which consists of opto-isolation circuit, logic inverter, MOSFET driver, and three-phase full-bridge inverter circuit. The FPGA unit generates digital SPWM signal as input to the inverter to convert DC voltage into three-phase AC voltage according to the given input frequency. Results show that the sub-module can control the speed in the range of 14000-28000 RPM with the corresponding frequency range of 250-500 Hz. The Sub-module also has constant V/F and Speed/Frequency (ω/F) characteristics. In addition, a ramp speed profile used during acceleration and deceleration has also been successfully implemented to address the problem of low starting torque due to the increase of supply frequency.

关键词： AC motors Inverters Field programmable gate arrays Acceleration Computer numerical control Voltage control Frequency control

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The Application of ANN-Linear Perceptron in the Development of DSS for a Fishery Industry

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Procedia Computer Science 2015年 72卷 67-77页

作者： Asep Sholahuddin Agung Pre Ramadhan Asep K. Supriatna Informatics Engineering Study Program Department of Mathematics Faculty of Mathematics and Natural Sciences Universitas Padjadjaran Jalan Raya Bandung Sumedang Km. 21 Jatinangor-45363 Indonesia Mathematics Study Program Department of Mathematics Faculty of Mathematics and Natural Sciences Universitas Padjadjaran Jalan Raya Bandung Sumedang Km. 21 Jatinangor-45363 Indonesia

Overfishing is a global environmental problem that risks fisheries since many of the fish stock of the fisheries have already reduced to below a tolerable level. One of solutions that often implemented in the fishery management is by calculating the value of Maximum Sustainable Yield (MSY) as the maximum tolerable harvest that can be taken out from the natural stock without harming the population over an indefinite period of time. A proper tool used for computing the MSY is needed to support the fishery manager in solving this decision making problem. In this paper we propose a software development of Decision Support System (DSS) to address such fishery industry problem. The DSS is developed to compute the MSY from the annual yield-effort data of the fishery. We use two sigmoid growth equations, Logistic and Gompertz equations, as the underlying population models, which then are approximated by their discrete forms for computing several growth parameters. Most known methods of growth parameter estimation use a Multiple Linear Regression with Ordinary Least Square method (MLR-OLS). Here we propose the application of Artificial Neural Network with Linear Perceptron method (ANN-LP). A case study in this paper shows that the effectiveness of the proposed ANN-LP is as good as the MLR-OLS in estimating both the growth parameters and the MSY of the fishery in the case study needed in the computation of its MSY by using Artificial Neural Network (ANN) Linear Perceptron.

关键词： DSS MSY Logistic Gompertz ANN Linear Perceptron

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Dense sampling of bird diversity increases power of comparative genomics (vol 587, pg 252, 2020)

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NATURE 2021年第7856期592卷 E24-E24页

作者： Feng, Shaohong Stiller, Josefin Deng, Yuan Armstrong, Joel Fang, Qi Reeve, Andrew Hart Xie, Duo Chen, Guangji Guo, Chunxue Faircloth, Brant C. Petersen, Bent Wang, Zongji Zhou, Qi Diekhans, Mark Chen, Wanjun Andreu-Sanchez, Sergio Margaryan, Ashot Howard, Jason Travis Parent, Carole Pacheco, George Sinding, Mikkel-Holger S. Puetz, Lara Cavill, Emily Ribeiro, Angela M. Eckhart, Leopold Fjeldsa, Jon Hosner, Peter A. Brumfield, Robb T. Christidis, Les Bertelsen, Mads F. Sicheritz-Ponten, Thomas Tietze, Dieter Thomas Robertson, Bruce C. Song, Gang Borgia, Gerald Claramunt, Santiago Lovette, Irby J. Cowen, Saul J. Njoroge, Peter Dumbacher, John Philip Ryder, Oliver A. Fuchs, Jerome Bunce, Michael Burt, David W. Cracraft, Joel Meng, Guanliang Hackett, Shannon J. Ryan, Peter G. Jonsson, Knud Andreas Jamieson, Ian G. da Fonseca, Rute R. Braun, Edward L. Houde, Peter Mirarab, Siavash Suh, Alexander Hansson, Bengt Ponnikas, Suvi Sigeman, Hanna Stervander, Martin Frandsen, Paul B. van der Zwan, Henriette van der Sluis, Rencia Visser, Carina Balakrishnan, Christopher N. Clark, Andrew G. Fitzpatrick, John W. Bowman, Reed Chen, Nancy Cloutier, Alison Sackton, Timothy B. Edwards, Scott V. Foote, Dustin J. Shakya, Subir B. Sheldon, Frederick H. Vignal, Alain Soares, Andre E. R. Shapiro, Beth Gonzalez-Solis, Jacob Ferrer-Obiol, Joan Rozas, Julio Riutort, Marta Tigano, Anna Friesen, Vicki Dalen, Love Urrutia, Araxi O. Szekely, Tamas Liu, Yang Campana, Michael G. Corvelo, Andre Fleischer, Robert C. Rutherford, Kim M. Gemmell, Neil J. Dussex, Nicolas Mouritsen, Henrik Thiele, Nadine Delmore, Kira Liedvogel, Miriam Franke, Andre Hoeppner, Marc P. Krone, Oliver Fudickar, Adam M. Mila, Borja Ketterson, Ellen D. Fidler, Andrew Eric Friis, Guillermo Parody-Merino, Angela M. Battley, Phil F. Cox, Murray P. Lima, Nicholas Costa Barroso Prosdocimi, Francisco Parchman, Thomas Lee Schlinger, Barney A. Loiselle, Bette A. Blake, John G. Lim, Haw Chuan Day, Lainy B. Fuxjager, Matthew J. Baldwin, Maude W. Braun, Michael J. Wirthlin, Morgan Dikow, China National GeneBank BGI-Shenzhen Shenzhen China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming China BGI-Shenzhen Shenzhen China Villum Centre for Biodiversity Genomics Section for Ecology and Evolution Department of Biology University of Copenhagen Copenhagen Denmark BGI Education Center University of Chinese Academy of Sciences Shenzhen China MOE Laboratory of Biosystems Homeostasis and Protection Life Sciences Institute Zhejiang University Hangzhou China Department of Neuroscience and Developmental Biology University of Vienna Vienna Austria Center for Excellence in Animal Evolution and Genetics Chinese Academy of Sciences Kunming China James D. Watson Institute of Genome Sciences Hangzhou China UC Santa Cruz Genomics Institute UC Santa Cruz Santa Cruz CA USA Natural History Museum of Denmark University of Copenhagen Copenhagen Denmark Center for Macroecology Evolution and Climate GLOBE Institute University of Copenhagen Copenhagen Denmark Department of Biological Sciences Louisiana State University Baton Rouge LA USA Museum of Natural Science Louisiana State University Baton Rouge LA USA Centre of Excellence for Omics-Driven Computational Biodiscovery (COMBio) Faculty of Applied Sciences AIMST University Kedah Malaysia Section for Evolutionary Genomics The GLOBE Institute Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark Institute of Molecular Biology National Academy of Sciences Yerevan Armenia University Museum Norwegian University of Science and Technology Trondheim Norway Center for Reproductive Medicine The 2nd Affiliated Hospital School of Medicine Zhejiang University Hangzhou China Novogene Durham NC USA Duke University Medical Center Durham NC USA The Rockefeller University New York NY USA Howard Hughes Medical Institute Chevy Chase MD USA Department of Dermatology Medical University of Vienna Vienna Austria

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Accelerating internet penetration to rural areas: A government-sponsored internet-kiosks deployment project in Garut Regency, West Java of Indonesia

Accelerating internet penetration to rural areas: A governme...

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International Conference on Telecommunication Systems, Services, and Applications (TSSA)

作者： A. Kurniawan I. Zakia E. Wartika A.G. Austin School of Electrical Engineering and Informatics Institut Teknologi Bandung Bandung Indonesia Study Program of Film and Television Institut Seni Budaya Bandung Bandung Indonesia Faculty of Civil Engineering and Environment Institut Teknologi Bandung Bandung Indonesia

Internet penetration in developing countries depend on a variety of factors, including the Gross Domestic Product (GDP), the density of telephone connections, and the density of personal computer users. Internet kiosks have been deployed in 21 rural ditrict areas of Garut Regency to facilitate internet access for local/district government as well as for the community who have no access to internet Each district was equiped with 10 PCs, a printer, a scanner, and an internet connection either using DSL or cellular access technology. The program was government sponsored through the Ministry of Communications and Information of the Republic of Indonesia. This program was also designed to provide education and training for the district internet kiosks operator as well as for the staffs of information technology at Garut Regency, on understanding, efficient use, management, maintenance, as well as the ethical/professional use of information to upgrade their skills. This study was then conducted to evaluate factors affecting internet penetration in rural areas of Garut Regency, West Java of Indonesia.

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Coverage and capacity trade-off using admission and power controlled CDMA system for wireless internet services in rural environments

Coverage and capacity trade-off using admission and power co...

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International Conference on Telecommunication Systems, Services, and Applications (TSSA)

In this paper the coverage and capacity of CDMA system is evaluated using admission and power control to serve for low to medium speed internet services, such as digital TV or film/video streaming in rural areas. One of the unique characteristics of CDMA system is that it is possible to trade off between capacity and its coverage, called the cell-breathing. Open loop and closed loop power control can be used to increase the capacity of CDMA system; while admission control can be applied to trade-off between its capacity and the coverage. Computer simulation was conducted to evaluate the power control performance in Rayleigh fading channel. Then semi-analytical evaluation was performed to obtain the coverage-capacity trade-off. The result shows that the capacity of CDMA systems increases when power control was employed. Numerical and semi analytical evaluation show that CDMA coverage and capacity can be traded-off to meet various demand of traffic capacity and cell coverage in rural environments.

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Analysis of more than 400,000 women provides case-control evidence for BRCA1 and BRCA2 variant classification

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Nature communications 2025年第1期16卷 4852页

作者： Maria Zanti Denise G O'Mahony Michael T Parsons Leila Dorling Joe Dennis Nicholas J Boddicker Wenan Chen Chunling Hu Marc Naven Kristia Yiangou Thomas U Ahearn Christine B Ambrosone Irene L Andrulis Antonis C Antoniou Paul L Auer Caroline Baynes Clara Bodelon Natalia V Bogdanova Stig E Bojesen Manjeet K Bolla Kristen D Brantley Nicola J Camp Archie Campbell Jose E Castelao Melissa H Cessna Jenny Chang-Claude Fei Chen Georgia Chenevix-Trench Don M Conroy Kamila Czene Arcangela De Nicolo Susan M Domchek Thilo Dörk Alison M Dunning A Heather Eliassen D Gareth Evans Peter A Fasching Jonine D Figueroa Henrik Flyger Manuela Gago-Dominguez Montserrat García-Closas Gord Glendon Anna González-Neira Felix Grassmann Andreas Hadjisavvas Christopher A Haiman Ute Hamann Steven N Hart Mikael B A Hartman Weang-Kee Ho James M Hodge Reiner Hoppe Sacha J Howell Anna Jakubowska Elza K Khusnutdinova Yon-Dschun Ko Peter Kraft Vessela N Kristensen James V Lacey Jingmei Li Geok Hoon Lim Sara Lindström Artitaya Lophatananon Craig Luccarini Arto Mannermaa Maria Elena Martinez Dimitrios Mavroudis Roger L Milne Kenneth Muir Katherine L Nathanson Rocio Nuñez-Torres Nadia Obi Janet E Olson Julie R Palmer Mihalis I Panayiotidis Alpa V Patel Paul D P Pharoah Eric C Polley Muhammad U Rashid Kathryn J Ruddy Emmanouil Saloustros Elinor J Sawyer Marjanka K Schmidt Melissa C Southey Veronique Kiak-Mien Tan Soo Hwang Teo Lauren R Teras Diana Torres Amy Trentham-Dietz Thérèse Truong Celine M Vachon Qin Wang Jeffrey N Weitzel Siddhartha Yadav Song Yao Gary R Zirpoli Melissa S Cline Peter Devilee Sean V Tavtigian David E Goldgar Fergus J Couch Douglas F Easton Amanda B Spurdle Kyriaki Michailidou Biostatistics Unit The Cyprus Institute of Neurology & Genetics Nicosia Cyprus. Department of Medical Genetics Oslo University Hospital Oslo Norway. Population Health Program QIMR Berghofer Medical Research Institute Brisbane Queensland Australia. Centre for Cancer Genetic Epidemiology Department of Public Health and Primary Care University of Cambridge Cambridge UK. Department of Quantitative Health Sciences Division of Computational Biology Mayo Clinic Rochester MN USA. Department of Laboratory Medicine and Pathology Mayo Clinic Rochester MN USA. Division of Cancer Epidemiology and Genetics National Cancer Institute National Institutes of Health Department of Health and Human Services Bethesda MD USA. Department of Cancer Prevention and Control Roswell Park Comprehensive Cancer Institute Buffalo NY USA. Fred A. Litwin Center for Cancer Genetics Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital Toronto Ontario Canada. Department of Molecular Genetics University of Toronto Toronto Ontario Canada. Division of Biostatistics Data Science Institute and Cancer Center Medical College of Wisconsin Milwaukee WI USA. Centre for Cancer Genetic Epidemiology Department of Oncology University of Cambridge Cambridge UK. Department of Population Science American Cancer Society Atlanta GA USA. Radiation Oncology Research Unit Hannover Medical School Hannover Germany. Copenhagen General Population Study Herlev and Gentofte Hospital Copenhagen University Hospital Herlev Denmark. Department of Clinical Biochemistry Herlev and Gentofte Hospital Copenhagen University Hospital Herlev Denmark. Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark. Department of Medical Oncology Dana-Farber Cancer Institute Boston MA USA. Department of Internal Medicine and Huntsman Cancer Institute University of Utah Salt Lake City UT USA. Centre for Genomic and Experimental Medicine Institute of Genetics & Cancer The University of Ed

Clinical genetic testing identifies variants causal for hereditary cancer, information that is used for risk assessment and clinical management. Unfortunately, some variants identified are of uncertain clinical significance (VUS), complicating patient management. Case-control data is one evidence type used to classify VUS. As an initiative of the Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) Analytical Working Group we analyze germline sequencing data of BRCA1 and BRCA2 from 96,691 female breast cancer cases and 302,116 controls from three studies: the BRIDGES study of the Breast Cancer Association Consortium, the Cancer Risk Estimates Related to Susceptibility consortium, and the UK Biobank. We observe 11,207 BRCA1 and BRCA2 variants, with 6909 being coding, covering 23.4% of BRCA1 and BRCA2 VUS in ClinVar and 19.2% of ClinVar curated (likely) benign or pathogenic variants. Case-control likelihood ratio (ccLR) evidence is highly consistent with ClinVar assertions for (likely) benign or pathogenic variants; exhibiting 99.1% sensitivity and 95.3% specificity for BRCA1 and 93.3% sensitivity and 86.6% specificity for BRCA2. This approach provides case-control evidence for 787 unclassified variants; these include 579 with strong or moderate benign evidence and 10 with strong pathogenic evidence for which ccLR evidence is sufficient to alter clinical classification.

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Discovery of rare variants associated with blood pressure regulation through meta-analysis of 1.3 million individuals (vol 52, pg 1314, 2020)

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NATURE GENETICS 2021年第5期53卷 762-762页

作者： Surendran, Praveen Feofanova, Elena V. Lahrouchi, Najim Ntalla, Ioanna Karthikeyan, Savita Cook, James Chen, Lingyan Mifsud, Borbala Yao, Chen Kraja, Aldi T. Cartwright, James H. Hellwege, Jacklyn N. Giri, Ayush Tragante, Vinicius Thorleifsson, Gudmar Liu, Dajiang J. Prins, Bram P. Stewart, Isobel D. Cabrera, Claudia P. Eales, James M. Akbarov, Artur Auer, Paul L. Bielak, Lawrence F. Bis, Joshua C. Braithwaite, Vickie S. Brody, Jennifer A. Daw, E. Warwick Warren, Helen R. Drenos, Fotios Nielsen, Sune Fallgaard Faul, Jessica D. Fauman, Eric B. Fava, Cristiano Ferreira, Teresa Foley, Christopher N. Franceschini, Nora Gao, He Giannakopoulou, Olga Giulianini, Franco Gudbjartsson, Daniel F. Guo, Xiuqing Harris, Sarah E. Havulinna, Aki S. Helgadottir, Anna Huffman, Jennifer E. Hwang, Shih-Jen Kanoni, Stavroula Kontto, Jukka Larson, Martin G. Li-Gao, Ruifang Lindstrom, Jaana Lotta, Luca A. Lu, Yingchang Luan, Jian'an Mahajan, Anubha Malerba, Giovanni Masca, Nicholas G. D. Mei, Hao Menni, Cristina Mook-Kanamori, Dennis O. Mosen-Ansorena, David Muller-Nurasyid, Martina Pare, Guillaume Paul, Dirk S. Perola, Markus Poveda, Alaitz Rauramaa, Rainer Richard, Melissa Richardson, Tom G. Sepulveda, Nuno Sim, Xueling Smith, Albert V. Smith, Jennifer A. Staley, James R. Stanakova, Alena Sulem, Patrick Theriault, Sebastien Thorsteinsdottir, Unnur Trompet, Stella Varga, Tibor V. Velez Edwards, Digna R. Veronesi, Giovanni Weiss, Stefan Willems, Sara M. Yao, Jie Young, Robin Yu, Bing Zhang, Weihua Zhao, Jing-Hua Zhao, Wei Zhao, Wei Evangelou, Evangelos Aeschbacher, Stefanie Asllanaj, Eralda Blankenberg, Stefan Bonnycastle, Lori L. Bork-Jensen, Jette Brandslund, Ivan Braund, Peter S. Burgess, Stephen Cho, Kelly Christensen, Cramer Connell, John de Mutsert, Renee Dominiczak, Anna F. Dorr, Marcus Eiriksdottir, Gudny Farmaki, Aliki-Eleni Gaziano, J. Michael Grarup, Niels Grove, Megan L. Hallmans, Goran Hansen, Torben Have, Christian T. Heiss, Gerardo Jorgensen, Marit E. Jousilahti, Pekka Kajantie, Eero Kamat, Mihir Karajamaki, AnneMari Kar British Heart Foundation Cardiovascular Epidemiology Unit Department of Public Health and Primary Care University of Cambridge Cambridge UK British Heart Foundation Centre of Research Excellence University of Cambridge Cambridge UK Health Data Research UK Cambridge Wellcome Genome Campus and University of Cambridge Cambridge UK Rutherford Fund Fellow Department of Public Health and Primary Care University of Cambridge Cambridge UK MRC Biostatistics Unit University of Cambridge Cambridge UK National Institute for Health Research Cambridge Biomedical Research Centre University of Cambridge and Cambridge University Hospitals Cambridge UK MRC Integrative Epidemiology Unit (IEU) Population Health Sciences Bristol Medical School University of Bristol Bristol UK Robertson Centre for Biostatistics University of Glasgow Glasgow UK MRC Epidemiology Unit University of Cambridge School of Clinical Medicine Cambridge UK Department of Immunology and Inflammation Imperial College London London UK Centre for Non-communicable Disease Research (CNCR) Dhaka Bangladesh National Institute for Health Research (NIHR) Blood and Transplant Research Unit (BTRU) in Donor Health and Genomics at the University of Cambridge Cambridge UK Department of Human Genetics Wellcome Sanger Institute Wellcome Genome Campus Hinxton Cambridge UK Department of Biostatistics and Epidemiology Perelman School of Medicine University of Pennsylvania Philadelphia PA USA Center for Non-Communicable Diseases Karachi Pakistan Department of Genetics Novo Nordisk Research Centre Oxford Oxford UK Human Genetics Center Department of Epidemiology Human Genetics and Environmental Sciences School of Public Health University of Texas Health Science Center at Houston Houston TX USA Human Genome Sequencing Center Baylor College of Medicine Houston TX USA Program in Medical and Population Genetics Broad Institute of Harvard and MIT Cambridge MA USA Cardiovascular Research Center Center for Genomic Medicine

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Development of customizable analytical derivation tool for algebraic function

Development of customizable analytical derivation tool for a...

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International Conference of Advanced informatics: Concept, Theory and Application (ICAICTA)

作者： Hendra Hadhil Choiri Nur Ulfa Maulidevi Informatics Engineering Study Program Institute of Technology Bandung Bandung Indonesia

One of the major problems in differential calculus is determining the derivative value of a function. A commonly used method is numerical derivative. The value obtained by this method is just approximation value. More accurate derivative value is obtained through analytic approach, by looking for general forms of the derivative function. Problem solving agent approach can be utilized to develop such tool, where the operators and constants in the function should be easily customized. It requires four steps in deriving function: parsing, deriving, simplification, and output returning step. User enters the function in a string, and it will be converted into an abstract syntax tree. This tree is traced by DFS algorithm to be derived and simplified. Based on the test results, the analytical derivation requires short processing time. Derivative results are correct, but simplifications are less optimal in some test cases. The modification of constants, operators, and the derivative rules can be done easily.

关键词： Syntactics Calculus Abstracts MATLAB informatics Problem-solving Polynomials

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Stabilization of nonlinear systems with coarse quantization

Stabilization of nonlinear systems with coarse quantization

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World Congress on Intelligent Control and Automation (WCICA)

作者： Wei Ren Junlin Xiong Informatics Engineering Study Program Institute of Technology Bandung Bandung Indonesia

This paper addresses feedback stabilization problem for nonlinear dynamic systems with quantized measurements and delays in the presence of external disturbances. In the context, the quantizer has two parameters to adjust the center and the range. The applied controller switches between zooming out phase and zooming in phase repeatedly. Both two phases are divided into two modes. First, based on the trajectory and mechanism of the whole closed-loop system, both the state feedback stabilization and the output feedback stabilization are studied and the results on ISS property are given. Further, we consider the cases with delays, and achieve stabilizable results.

关键词： Quantization (signal) Nonlinear systems Delays State estimation Closed loop systems Output feedback

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Actor and Use Case Extraction from Text-Based Requirement Specification

Actor and Use Case Extraction from Text-Based Requirement Sp...

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International Conference Image Processing, Computers and Industrial engineering (ICICIE’2014, Kuala Lumpur)

作者： Elisa Margareth Sibarani Andry Hutagaol Deppy Simarmata Juniaty Manihuruk Del Institute of Technology the Informatics Engineering Study Program Del Institute of Technology

Initial stage in software development lifecycle is requirements gathering steps which results a text-based requirements specification *** problem in analyzing those requirements is the difficulty of identifying the functionality of the software,especially when there are so many descriptions elicited from the gathering *** objective of this research is analyzing the process to identify actor and use case of the system to be *** the requirements were described in the form of natural language,therefore it needs natural language *** proposed solution is simplification form by only doing the syntax analysis to provide a quick *** tool is built in Java by accept active sentences in *** evaluation result proves that the tool is able to list actor and use cases from a given system *** future work is able to process passive sentence with complex structure not only in the Subject-Predicate-Object form.

关键词： Software requirements actor use case syntax analysis

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