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14th International Federation for the Promotion of Mechanism and Machine Science World Congress, IFToMM 2015

作者： Hsu, Ruei-Hung Wu, Yu-Ren Wu, Wei-Te Tran, Van-The Bachelor's Program in Precision System Design Feng Chia University Taichung Taiwan Department of Mechanical Engineering National Central University Taoyuan Taiwan Department of Biomechatronics Engineering National Pingtung University of Science and Technology Pingtung Taiwan

ISBN: (纸本)9789860460988

Screw rotors of a twin screw compressor often deform and interfere due to the cyclic gas pressure and working temperature, which lead to noise, vibration and abrasion of the screw rotors. Therefore, this paper proposed a simplified CAE (Computer Aided engineering) method instead of the past massive and complex CFD (Computational Fluid Dynamics) method to simulate and estimate reasonably the screw rotor load and deformation with considering the gas pressure and working temperature applied on its operating process. The analysis results could provide the possible maximum rotor deformation and cyclic load acting on the rotors for design consideration.

关键词： Deformation

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Integrating artificial neural networks and cluster analysis to assess energy efficiency of buildings

Integrating artificial neural networks and cluster analysis ...

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IIE Annual Conference and Expo 2014

作者： Aqlan, Faisal Ahmed, Abdulaziz Srihari, Krishnaswami Khasawneh, Mohammad T. Industrial and System Engineering Program Department of Mechanical Civil and Environmental Engineering University of New Haven West HavenCT06516 United States Department of Systems Science and Industrial Engineering State University of New York at Binghamton BinghamtonNY13902 United States

ISBN: (纸本)9780983762430

Energy consumption of buildings worldwide has steadily increased over the past couple of decades. Furthermore, energy performance of buildings is one of the factors that contribute to energy waste and its perennial adverse impact on the environment. This paper presents a data mining approach for assessing the heating and cooling requirements of residential buildings. The proposed approach combines Artificial Neural Networks (ANNs) and cluster analysis to assess and predict the heating and cooling energy efficiency of residential buildings. The ANN-based model uses eight input variables (i.e., relative compactness, surface area, wall area, roof area, overall height, orientation, glazing area, and glazing area distribution) to predict both the heating and cooling loads of residential buildings. Buildings are then clustered based on the output variables using the K-means clustering method. The proposed approach is used to assess and evaluate 768 diverse residential buildings based on simulated literature data. The research results showed that the proposed approach can effectively predict the heating and cooling requirements of residential buildings based on the input variables considered with a very high level of accuracy.

关键词： Energy efficiency

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Reporting system Design for Family Planning Field Officers in DPPKB Using Business Process Improvement (BPI)

Reporting System Design for Family Planning Field Officers i...

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Information Technology International Seminar (ITIS)

作者： Fakhirah Nur Alifah Christanto Triwibisono Litasari Widyastuti Suwarsono Industrial Engineering Study Program School of Industrial and System Engineering Telkom University Bandung Indonesia

ISBN: (数字)9781728177267

ISBN: (纸本)9781728177274

Family Planning (FP) field officers are the people actively working in the field to encourage people to get involved in the family planning program that supports the government in controlling the population of the country. However, many of the officers have stated that their recruits often make mistakes during the process of inputting data along, added with the long manual validation process. The available digital reporting application called Sistem Informasi Keluarga (SIGA) is also not used at its maximum capability, causing the decrease of data validity collected through the process. Using business process improvement (BPI), value added analysis, and gap analysis are performed to find the issues in the system that will become the base of the reporting system redesign. This research was done to provide a proper business process design that is needed to ensure maximum comprehension and reduction of data invalidity with the help of the existing application. The result of this research shows that the new business process design required the digitalization of the data input process using an information system and the reduction of the use of offline forms to increase the validity of data in the reporting system.

关键词： Business Task analysis Process control Planning Statistics Sociology Process design

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Multi-campus new faculty development to improve the culture of teaching

Multi-campus new faculty development to improve the culture ...

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2003 ASEE Annual Conference and Exposition: Staying in Tune with engineering Education

作者： Fahrenholtz, William G. Bieniek, Ronald J. Graham, Steven W. University of Missouri Rolla University of Missouri-System Department of Ceramic Engineering UMR New Faculty Program UM Rolla Lrng. Enhancement Across D.P. UM Rolla Pres.'s Acad. Leadership Institute University of Missouri System

The strategic plan of the University of Missouri for student learning and the creation of learner-centered environments are discussed. The New Faculty Teaching Scholars (NFTS) program sponsors three system-wide retreats and campus-based activities scheduled throughout the year. Special emphasis was placed on aspects, benefits and modifications to the NFTS approach that can be used to enhance the professional development of engineering faculty at any institution. NFTS participants showed that the faculty are willing to try classroom techniques that were shown to improve student learning.

关键词： engineering education

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WPA MKII: An innovative pump package for the international space station 66

WPA MKII: An innovative pump package for the international s...

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66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015

作者： Di Francescantonio, N. Gargioli, E. Freddi, M. Falcetti, G. Pastor, S. Persson, J. Frerker, H. Szigetvari, Z. Schwientek, A. Thales Alenia Space Turin Italy European Space Agency Noordwijk Netherlands Airbus DS Bremen Germany DESI Engineering WPA Mk II System Engineering Manager Germany Head System Architectures and Verification DESI Engineering Germany Project Leader -Scientific equipment Germany Head of Science Unit France ISS Program and Exploration Department Head of ISS System Development Unit United States Mechanical Engineering Department Thermal Control Section United States IOT/COLUMBUS System Engineering and P/L integration United States TCS/ECLS Subsystem Manager France WPA Mk II Delivery Manager France

ISBN: (纸本)9781510818934

WPA Mk II Project started in 2011 in response to the ESA spare procurement philosophy for ISS life extension up to 2020 (and possibly beyond 2020). The project involves TASI as responsible for the design, development, manufacturing, integration and testing of this new water pump package for the ISS Columbus module. This pump package is responsible for the circulation of water inside Columbus pipelines to ensure proper thermal control not only for the Payloads (PL's), but also for the cabin where astronauts work and live, and consequently represents the core of the Thermal Control system in Columbus. WPA Mk II is characterized by several innovations in comparison with the current WPA Mk I installed in Columbus, like new functionalities (on board SW uploading capability), or new technologies (ultrasonic flow meter), up to a high level modular design (characterized by several ORUs, on Orbit Removable Units, conceived to optimize R&R operations and associated time and costs). A successful Critical Design Review has been achieved in July 2014, in Turin, with the support of the European Space Agency and Airbus. Now TASI is approaching MAIT phase: in the 2015 there will be the integration and testing of the various ORUs while the 2016 will be characterized by the integration and testing of the two pump packages WPA Mk II to demonstrate system compliance to the launchers and Columbus environmental and functional requirements. The present article provides an overview of the Project, the main features, the mission scenarios, and a general overview about the associated Qualification plan at Component, ORUs and Assy level. Copyright © 2015 by the American Institute Federation of Aeronautics and Astronautics. Inc. All rights reserved.

关键词： Integration testing

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Identifying and Anticipating Cyberattacks That Could Cause Physical Damage to Industrial Control systems

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IEEE Power and Energy Technology systems Journal 2019年第4期6卷 172-182页

作者： Angle, Matthew G. Madnick, Stuart Kirtley, James L. Khan, Shaharyar Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology CambridgeMA02139 United States Sloan School of Management School of Engineering Massachusetts Institute of Technology CambridgeMA02139 United States System Design and Management Program Massachusetts Institute of Technology CambridgeMA02139 United States

Physical control systems are increasingly controlled by reconfigurable, network-enabled devices to increase flexibility and ease commissioning and maintenance. Such capability creates vulnerabilities. Devices may be remotely reprogrammed by a malicious actor to act in unintended ways, causing physical damage to mechanical equipment, infrastructure, and life and limb. In this paper, past examples of actual damage to cyber-physical systems are shown, threats posed by software-controlled variable frequency drives (VFDs) are analyzed, and a small-scale version of an attack on ubiquitous VFD equipment is demonstrated. © 2014 IEEE.

关键词： Embedded systems

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Angle and polarization independent plasmonic infrared band-stop filter with metallic disk on SiO2

Angle and polarization independent plasmonic infrared band-s...

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16th Opto-Electronics and Communications Conference, OECC 2011

作者： Abbas, Mohammed Nadhim Cheng, Cheng-Wen Chang, Yia-Chung Shih, Min-Hsiung Research Center for Applied Sciences Academia Sinica Taipei 11529 Taiwan Institute of Physics and Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Department of Engineering and System Science NTHU Hsinchu 300 Taiwan

ISBN: (纸本)9781612842882

We demonstrated Ag/SiO2 metallic disk structure can be applied as an efficient narrow stop band filter in the IR region. The absorption spectra of such structure are investigated both theoretically and experimentally. The metallic disk exhibits only one significant localized surface plasmon polariton mode for both TM and TE polarizations simultaneously which can give an ultrahigh immunity to incident angles and polarization direction. © 2011 National Sun Yat-Sen Univ.

关键词： Silica

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Fatigue reliability analysis of long span bridges with structural health monitoring systems

Fatigue reliability analysis of long span bridges with struc...

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4th International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2009

作者： Chen, Z.W. Xu, Y.L. Wang, X.M. Department of Civil and Structural Engineering Hong Kong Polytechnic University Kowloon Hong Kong Urban System Program CSIRO Sustainable Ecosystems Commonwealth Scientific and Industrial Research Organization Melbourne Australia

ISBN: (纸本)9783905594522

This study is to present a framework for assessing structural reliability in association with fatigue damage at critical locations of long span bridges by making use of in-situ wind and structural health monitoring systems. The Tsing Ma Bridge in Hong Kong, a long suspension bridge that carries both highway and railway, is taken as an example. The bridge has been continuously monitored for the past ten years by a system known as Wind and Structural Health Monitoring system (WASHMS), which measures the loadings and structural responses of the bridge. Railway, highway and wind loadings are considered to be major contributors to the fatigue damage of the bridge. Random parameters in probabilistic loading models are represented by mixture distribution functions and established by the expectation-maximization (EM) algorithm on the basis of the monitoring data acquired by WASHMS. Daily stochastic stress processes in response to railway, highway and wind loadings at critical locations are developed by virtue of the probabilistic loading models and the finite element stress analysis. With a Monte-Carlo simulation, a location-dependent probabilistic distribution function of daily stress ranges is then derived on the basis of a large number of virtual daily stochastic stress processes. Meanwhile, structural fatigue resistance is also considered as a random variable in the Miner's rule taking account uncertainties in fatigue life assessment. Finally, a limit state function of fatigue reliability is elaborated and a fatigue reliability index is estimated, depending on combined wind, and railway and highway loadings. It is found that the fatigue reliability index decreases nonlinearly with time, and it will be less than 3.7 after 95 years for some critical elements.

关键词： Stochastic systems

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Detecting Foreground in Videos via Posterior Regularized Robust Bayesian Tensor Factorization 19

Detecting Foreground in Videos via Posterior Regularized Rob...

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19th IEEE International Conference on Automation Science and engineering, CASE 2023

作者： Xia, Shenghao Zhang, Yinwei Zhang, Biao Liu, Jian University of Arizona Statistics & Data Science Gidp Program Department of Mathematics United States University of Arizona Department of System & Industrial Engineering United States Abb Inc. United States

ISBN: (纸本)9798350320695

Foreground detection is a critical step for separating the moving object from the background in video processing. Tensor factorization has been used in foreground detection due to its ability to process complex high-dimensional data, such as color images and videos. However, traditional tensor factorization often lacks the ability for uncertainty quantification. Bayesian tensor factorization can measure the uncertainty by considering the distributions of the tensor factorization model parameters. Besides, domain knowledge is commonly available and could improve the accuracy of foreground detection of the Bayesian tensor factorization model if it can be appropriately incorporated. In this work, a new Bayesian tensor factorization model, named Posterior Regularized Bayesian Robust Tensor Factorization (PR-BRTF), is proposed with incorporating characteristics of dynamic foreground, as a sparsity posterior regularization term. Furthermore, the variational Bayesian inference and L1 norm is combined for inducing sparsity with an efficient inference. The experiments in real-world case studies have shown the performance improvement of the proposed model over state-of-art methods. © 2023 IEEE.

关键词： Inference engines

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AKIP Process Automation Platform: A Framework for the Development of Process-Aware Web Applications 18

AKIP Process Automation Platform: A Framework for the Develo...

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18th International Conference on Web Information systems and Technologies, WEBIST 2022

作者： Neto, Ulisses Telemaco Oliveira, Toacy Pillat, Raquel Alencar, Paulo Cowan, Don Melo, Glaucia David R. Cheriton School of Computer Science University of Waterloo Waterloo Canada System Engineering and Computing Program Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9789897586132

An increasing number of platforms for Business Process Automation (BPA) have been developed in recent years, including open-source and proprietary solutions. However, there are still some unsolved problems and limitations related to the adoption of these solutions, which include: vendor lock-in, limited UI/UX, limited integration, outdated technology stack, and lack of support for non-process features. The framework presented in this paper addresses these problems and limitations by providing an open-source platform to facilitate the development of process-aware information systems (PAISs) based on code generation techniques. The platform is capable of generating a functional process-aware Web application from a business process model defined in BPMN. To the best of our knowledge, there is no other software tool that generates fully functional process-aware Web applications. The presented framework has been evaluated in the academy and industry and used to develop dozens of non-profit and commercial process-aware applications. Copyright © 2022 by SCITEPRESS – Science and Technology Publications, Lda. All rights reserved.

关键词： Open systems

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