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International Multiconference of Engineers and Computer Scientists 2016, IMECS 2016

作者： Mahardika, Finda A. Yuniaristanto Hisjam, Muh. Asyrofa, Ria Laboratory of Business and Logistic System Industrial Engineering Department Faculty of Engineering Sebelas Maret University Surakarta57126 Indonesia Productin and Planning Control of SBU GMF Power Setvices Garuda Maintenance Facility AeroAsia Tangerang1303 Indonesia

ISBN: (纸本)9789881404763

Stockout of Al-Oxide material is the main problem in the GMF Power Services' Part Repair Division. To identify the causes of the problem, we can use a Fishbone diagram. From the Fishbone diagram, we explored further by using ABC analysis. We proposed an inventory control using Q Method (Continuous Review Method) to find optimal supply and company spending for booking, storage and financial reserving for materials that the company cannot provide. Determining optimal stock is very urgent to the company in order to avoid the stockout.

关键词： Inventory control

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Comparative study of QCM analyzers based on pierce oscillator and electromechanical impedance techniques

Comparative study of QCM analyzers based on pierce oscillato...

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Biomedical engineering International Conference (BMEiCON)

作者： Subhawat Jayasvasti Don Isarakorn Songmoung Nundrakwang Department of Instrumentation and Control Engineering Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

ISBN: (纸本)9781509039418

This paper presents a comparison between pierce oscillator and impedance analysis techniques for measuring the frequency of the quartz crystal. The QCM analyzer based on pierce oscillator is designed, realized, and then compared to the impedance analyzer (Type bode 100). The comparison is focused on accuracy and precision of measurement. The pierce oscillator in a completed-chip is employed in the QCM analyzing device in order to simplify the circuit of system. The frequency drift and standard deviation (SD) values which are obtained from resonant frequency measurement are studied in order to investigate the accurate and precise measurement of devices. In the experiment, an AT-cut quartz disc of crystal oscillator package HC49U is unloaded and loaded while it is being measured the frequency. From the experimental results, the QCM analyzer based on pierce oscillator and impedance analyzer have the approximate accuracy and precision of measurement. The QCM analyzer based on pierce oscillator has lower sensitivity due to the frequency drift.

关键词： Accuracy and Precision of Resonant Frequency Measurement Pierce Oscillator

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MM-PBSA: Challenges and opportunities 10

MM-PBSA: Challenges and opportunities

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10th International Congress on Image and Signal Processing, BioMedical engineering and Informatics, CISP-BMEI 2017

作者： Do Vale Hipolito Cavalheiro, Joao Pedro Pires, Nuno Miguel Matos Dong, Tao Institute of Applied Micro-Nano Science and Technology-IAMNST Chongqing Key Laboratory of Colleges Universities On Micro-Nano Systems Technology and Smart Transducing Chongqing Engineering Laboratory for Detection Control and Integrated System National Research Base of Intelligent Manufacturing Service Chongqing Technology and Business University Chongqing China Department of Microsystems-IMS Faculty of Technology Natural Sciences and Maritime Sciences University College of Southeast Norway Kongsberg Norway P.O. Box 5003 ÅsN-1432 Norway

ISBN: (纸本)9781538619377

Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA) is arguably the most popular method for free binding energy prediction since it is considerably more accurate than docking or scoring methods, but considerably less demanding than Free Energy Perturbation (FEP). In this review, the most important challenges and opportunities associated to this method were addressed and evaluated. The following conclusions were obtained: Accuracy of MM-PBSA calculations still strongly depends on the settings used for the prediction, the conditions in which Molecular Dynamics simulations (MD) are made, the conditions from which the experimental data are obtained, it depends on the presence of the complex structure and this method has also shown to be unable to provide accurate results for charged molecules. On the other hand, it presents many opportunities since many improvements were based on MM-PBSA calculations such as Single Amino Acid Mutation based change in Binding free Energy (SAAMBE), bootstrap, dampened Molecular Mechanics Poisson-Boltzmann Surface Area (dMM-PBSA), a high throughput method called g-mmpbsa, a method based on both MM-PBSA calculations and a scoring function, force fields for inhomogeneous protein specific environments and many other new ways of improving the accuracy of this promising method. This study intends to clarify what are the major trends in this field and thus contribute to increase MM-PBSA's applicability and efficiency. © 2017 IEEE.

关键词： Molecular dynamics

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Robust PID controller design using convex-concave optimization: Application to an unstable system

Robust PID controller design using convex-concave optimizati...

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International Conference on control, Automation and systems ( ICCAS)

作者： Chawalit Thabthimrattana Surachai Saelim Suchol Tiewcharoen Sudchai Boonto Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand

ISBN: (纸本)9781467390583

This paper shows a PI with phase-lead controller design using convex-concave optimization. The phase-lead term is added to reduce a high frequency measurement noise effect. By fixing all parameters of the phase-lead part, the optimization program searches the remain parameters subject to robustness constraints. The optimization constraints are functions in a frequency domain. The design problem can be solved by frequency gridding on a software package CVX. Experiments on an unstable magnetic levitation system are presented. The proposed controller shows significantly better performance than a robust H ∞ controller designed by a standard method on the same unstable system.

关键词： Optimization Robustness Magnetic levitation Transfer functions Closed loop systems Sensitivity Mathematical model

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Temperature control of Autothermal Reformer system with Coefficient Diagram Method

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IOP Conference Series: Materials Science and engineering 2017年第1期241卷

作者： N Srisiriwat C Wutthithanyawat Department of Petrochemicals and Environmental Management Faculty of Engineering Pathumwan Institute of Technology Bangkok 10330 Thailand Department of Instrumentation and Control Engineering Faculty of Engineering Pathumwan Institute of Technology Bangkok 10330 Thailand

The objective of this paper is to design the autothermal reformer (ATR) temperature control by using a coefficient diagram method (CDM). The adiabatic temperature is a main controlled variable of the ATR which is a combination of endothermic and exothermic reactions. The simulation results of control parameters were calculated to maintain the ATR reaction temperature by manipulating air feed flow rate. In this work, two strategies of ATR temperature controller system with and without the feed temperature control of a preheater unit are compared to investigate the appropriate controller system when the change of surrounding temperature is considered as a key disturbance. The results showed that by using the CDM, the stability and robustness for controlling the ATR temperature system were considered to offer the proper control parameters and the designed temperature control of ATR system gave a good performance to maintain the controlled variables and reject the disturbance. Moreover, the ATR control system design with the feed temperature controller can compensate the surrounding temperature better than that without the feed temperature control.

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Author Correction: The power of genetic diversity in genome-wide association studies of lipids

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Nature 2023年第7965期618卷 E19-E20页

作者： Sarah E Graham Shoa L Clarke Kuan-Han H Wu Stavroula Kanoni Greg J M Zajac Shweta Ramdas Ida Surakka Ioanna Ntalla Sailaja Vedantam Thomas W Winkler Adam E Locke Eirini Marouli Mi Yeong Hwang Sohee Han Akira Narita Ananyo Choudhury Amy R Bentley Kenneth Ekoru Anurag Verma Bhavi Trivedi Hilary C Martin Karen A Hunt Qin Hui Derek Klarin Xiang Zhu Gudmar Thorleifsson Anna Helgadottir Daniel F Gudbjartsson Hilma Holm Isleifur Olafsson Masato Akiyama Saori Sakaue Chikashi Terao Masahiro Kanai Wei Zhou Ben M Brumpton Humaira Rasheed Sanni E Ruotsalainen Aki S Havulinna Yogasudha Veturi QiPing Feng Elisabeth A Rosenthal Todd Lingren Jennifer Allen Pacheco Sarah A Pendergrass Jeffrey Haessler Franco Giulianini Yuki Bradford Jason E Miller Archie Campbell Kuang Lin Iona Y Millwood George Hindy Asif Rasheed Jessica D Faul Wei Zhao David R Weir Constance Turman Hongyan Huang Mariaelisa Graff Anubha Mahajan Michael R Brown Weihua Zhang Ketian Yu Ellen M Schmidt Anita Pandit Stefan Gustafsson Xianyong Yin Jian'an Luan Jing-Hua Zhao Fumihiko Matsuda Hye-Mi Jang Kyungheon Yoon Carolina Medina-Gomez Achilleas Pitsillides Jouke Jan Hottenga Gonneke Willemsen Andrew R Wood Yingji Ji Zishan Gao Simon Haworth Ruth E Mitchell Jin Fang Chai Mette Aadahl Jie Yao Ani Manichaikul Helen R Warren Julia Ramirez Jette Bork-Jensen Line L Kårhus Anuj Goel Maria Sabater-Lleal Raymond Noordam Carlo Sidore Edoardo Fiorillo Aaron F McDaid Pedro Marques-Vidal Matthias Wielscher Stella Trompet Naveed Sattar Line T Møllehave Betina H Thuesen Matthias Munz Lingyao Zeng Jianfeng Huang Bin Yang Alaitz Poveda Azra Kurbasic Claudia Lamina Lukas Forer Markus Scholz Tessel E Galesloot Jonathan P Bradfield E Warwick Daw Joseph M Zmuda Jonathan S Mitchell Christian Fuchsberger Henry Christensen Jennifer A Brody Mary F Feitosa Mary K Wojczynski Michael Preuss Massimo Mangino Paraskevi Christofidou Niek Verweij Jan W Benjamins Jorgen Engmann Rachel L Kember Roderick C Slieker Ken Sin Lo Nuno R Zilhao Phuong Le Marcus E Kleber Graciela E Delgado Shaofeng Huo Dai Department of Internal Medicine Division of Cardiology University of Michigan Ann Arbor MI USA. VA Palo Alto Health Care System Palo Alto CA USA. Department of Medicine Division of Cardiovascular Medicine Stanford University School of Medicine Stanford CA USA. Department of Computational Medicine and Bioinformatics University of Michigan Ann Arbor MI USA. William Harvey Research Institute Barts and the London School of Medicine and Dentistry Queen Mary University of London London UK. Department of Biostatistics and Center for Statistics Genetics University of Michigan Ann Arbor MI USA. Department of Genetics Perelman School of Medicine University of Pennsylvania Philadelphia PA USA. Clinical Pharmacology William Harvey Research Institute Barts and The London School of Medicine and Dentistry Queen Mary University of London London UK. Endocrinology Boston Children's Hospital Boston MA USA. Medical and Population Genetics Broad Institute Cambridge MA USA. Department of Genetic Epidemiology University of Regensburg Regensburg Germany. McDonnell Genome Institute and Department of Medicine Washington University St Louis MO USA. Department of Precision Medicine Division of Genome Science National Institute of Health Cheongju-si South Korea. Tohoku Medical Megabank Organization Tohoku University Sendai Japan. Sydney Brenner Institute for Molecular Bioscience Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa. Center for Research on Genomics and Global Health National Human Genome Research Institute National Institutes of Health Bethesda MD USA. Blizard Institute Barts and the London School of Medicine and Dentistry Queen Mary University of London London UK. Wellcome Sanger Institute Hinxton UK. Department of Epidemiology Emory University Rollins School of Public Health Atlanta GA USA. Atlanta VA Health Care System Decatur GA USA. Malcolm Randall VA Medical Center Gainesville FL USA. Division of Vascular Sur

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Effect of electrostatic charged state on die-wall lubrication for powder metallurgy

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Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 2016年第3期63卷 93-100页

作者： Adachi, Kyoushi Fujiki, Akira R and D Laboratory Adeka Chemical Supply Corporation 7-2-34 Higashiogu Arakawa-ku Tokyo116-0012 Japan Department of Mechanical Control Systems Faculty of System Science and Engineering Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama337-8570 Japan

This study was made to investigate the electrostatic adhesion of powder lubricants of various types caused by friction, and the resulting green compact and sintered compact characteristics when the powder lubricant was used as a die-wall lubricant. The powder lubricant like metallic soap containing a functional group that is easily polarized (carboxyl group) in the molecular framework is suitable for use as a die-wall lubricant by electrostatic adhesion. It was shown that the powder lubricant with finer particle size containing easily polarized functional group adheres to the die wall easily. It was also shown that density and transverse rupture strength of the sintered compact increase with increase of coverage of the die surface by the powder lubricant.

关键词： Particle size

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Admissible sets for chance-constrained difference inclusions

Admissible sets for chance-constrained difference inclusions

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American control Conference

作者： James Fleming Mark Cannon Department of Control System and Instrumentation Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Civil and Environmental Engineering Department University of Maryland

ISBN: (纸本)9781467386838

We study the Maximal Admissible Set (MAS) of a linear difference inclusion under a chance constraint involving random variables with bounded support. After showing that it is difficult to compute this set in general, we suggest inner and outer approximations that can be computed using existing algorithms. The inner approximations are themselves constraint admissible sets and can be represented by a finite number of chance constraints. We give examples to demonstrate the low level of conservatism of these approximations and to illustrate the potential application in Model Predictive control.

关键词： Random variables Uncertainty Stochastic processes Robustness Predictive control Time factors Probabilistic logic Random variable Probabilistic logic Predictive control Time Factors Markov chain Stochastic Processes Robustness Uncertainty Conservatism

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Multi-criteria optimisation design of shapers with piece-wise equally distributed time-delay

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IFAC-PapersOnLine 2016年第10期49卷 112-117页

作者： Pilbauer, Dan Michiels, Wim Vyhlidal, Tomas CIIRC - Czech Institute of Informatics Robotics and Cybernetics and Dept. of Instrumentation and Control Eng. Faculty of Mechanical Engineering Czech Technical University in Prague Technická 4 166 07 Praha 6 Czech Republic Department of Computer Science Katholieke Universiteit Leuven Celestijnenlaan 200A HeverleeB-3001 Belgium

The paper presents an optimisation based method to parametrize input shapers with time delays of piece-wise-equal distribution. The design respects the two key requirements on the shaper performance that are the prompt response time and the robustness represented by residual vibration functions, which are however conflicting criteria as a rule. Thus, the optimisation task is solved as a constrained multi-objective problem where the constraints respect the additional requirements on the shaper performance such as a non-decreasing step response or zero residual function at some frequency points. The result is a Pareto front that shows a trade-off between the two main requirements. Next to the presentation of the results in an example, a user friendly shaper-design tool is presented. © 2016

关键词： Multiobjective optimization Computer control systems Constrained optimization Economic and social effects Time delay Timing circuits Distributed time delays Multi criteria optimisation Multi objective problem Pareto frontiers Residual functions Residual vibrations Signal shaper Vibration suppression

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Fabrication of 3D nanoporous gold with very low parting limit derived from au-based metallic glass and enhanced methanol electro-oxidation catalytic performance

arXiv

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arXiv 2017年

作者： Xu, Yi Yiu, Pak Man Shan, Guangcun Shibayama, Tamaki Watanabe, Seiichi Ohnuma, Masato Huang, Wei Shek, Chan-Hung Department of Physics and materials science City University of Hong Kong No.83 Tat Chee Avenue Kowloon Tang Hong Kong School of Instrumentation Science and Opto-electronics Engineering Beihang University No.37 XueYuan Road Beijing100095 China Laboratory of Quantum Energy Conversion Materials Centre for Advanced Research of Energy and Materials Division of Quantum Science and Engineering Faculty of Engineering Hokkaido University Kita 13 Nishi 8 Kita Ku Sapporo0608628 Japan Laboratory of Quantum Beam System Engineering Division of Quantum Science and Engineering Faculty of Engineering Hokkaido University Kita 13 Nishi 8 Kita Ku Sapporo0608628 Japan Nanjing Tech University 30 South Puzhu Road Nanjing211816 China

Nanoporous gold (NPG) with bi-continuous ligaments and pores structure has promising potential in functional applications, among which one prominent example is fuel cell electrocatalyst. However, current application of NPG is mostly limited to methanol electro-oxidation due to its weak catalytic performance. Here we report a simple chemical dealloying process, for generating peculiar three-dimensional (3D) free-standing NPG with high specific surface area associated with a novel porous 'cone shaped protrusion' morphology. This NPG structure possesses the highest specific activity of catalytic performance reported NPG catalysts so far. Copyright © 2017, arXiv, All rights reserved.

关键词： Metallic glass

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