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Articles 93031 - 93060 of 197988

Full-Text Articles in Engineering

Bearing Boundary Element Method Based On Geometrically Similar Roller Conditions, Xia Yang, Ya-Chao Li, Chuang Yan, Guang-Ming Liu, Jian-Mei Wang, Hai-Lian Gui Oct 2016

Bearing Boundary Element Method Based On Geometrically Similar Roller Conditions, Xia Yang, Ya-Chao Li, Chuang Yan, Guang-Ming Liu, Jian-Mei Wang, Hai-Lian Gui

Journal of Marine Science and Technology–Taiwan

To solve the three-dimensional pressure and load distribution of roller bearings, a new boundary element method (BEM) is presented in this report. First, a discrete model of the initial location roller was established, and the other rollers’ discrete data could be obtained using geometrically similar conditions of this model. Based on the three-dimensional elastic contact BEM, all of the bearing rollers could be described as one object; therefore, the roller bearing problem of a multi-object contact system could be simplified as the problem of a threeobject contact system. Bearing boundary elements were used to realize the discontinuous traction on the …

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Analysis Of Wave Interaction With Double Vertical Slotted Walls Using Mbem, Ching-Yun Yueh, Chih-Hao Su, Chun-Chiang Wen, Shih-Hsuan Chuang Oct 2016

Analysis Of Wave Interaction With Double Vertical Slotted Walls Using Mbem, Ching-Yun Yueh, Chih-Hao Su, Chun-Chiang Wen, Shih-Hsuan Chuang

Journal of Marine Science and Technology–Taiwan

In this paper, a multi-domain boundary element method (MBEM) is formulated and applied to study wave interaction with double vertical slotted walls, which are modeled as thin or non-thickness structures. Two-dimensional motion with wave crests parallel to the vertical slotted walls and linearized irrotational flow are assumed. The accuracy of the solution obtained using the numerical technique is demonstrated by comparing the numerical values with those obtained from experiments and from other analytical solutions. A comparison of the hydrodynamic performance of the breakwater with identical or different double vertical slotted walls is conducted. In addition, the numerical results of the …

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Ultra-Large Grain Pure Copper Microstructure Under Low Cycle Fatigue, Hsing-Lu Huang, Shih-Wei Mao, Tz-Li Hu, Dershin Gan, New-Jin Ho Oct 2016

Ultra-Large Grain Pure Copper Microstructure Under Low Cycle Fatigue, Hsing-Lu Huang, Shih-Wei Mao, Tz-Li Hu, Dershin Gan, New-Jin Ho

Journal of Marine Science and Technology–Taiwan

The dislocation structure evolution in polycrystalline copper at constant strain amplitude during low cycle fatigue is well understood. Single crystal, ultra-large grain polycrystalline copper dislocation development has received little attention. Ultra-grain polycrystalline copper with 600 m average grain size was used in this study to investigate the dislocation development at different fatigue strain amplitudes. The results show that; (1) the stress curve vs. number of cycles (S-N curve) produces hardening in the first stage followed by softening regardless of the strain amplitude. At the same time, no plateau is found in the S-N curves. (2) The fatigue saturation stress increases …

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Robust Mixed H2/Passivity Performance Controller Design For Uncertain Drum-Boiler System, Cheung-Chieh Ku Oct 2016

Robust Mixed H2/Passivity Performance Controller Design For Uncertain Drum-Boiler System, Cheung-Chieh Ku

Journal of Marine Science and Technology–Taiwan

This paper discusses a robust control problem of uncertain drum-boiler system subject to H2 and passivity performances. The main aims of H2 control scheme are to minimize output energy and guarantee robust asymptotical stability. Besides, passivity theory is applied to constrain effect of external disturbance on the system. Based on Lyapunov function, some sufficient conditions are derived into Linear Matrix Inequality (LMI) form that can be directly calculated by the convex optimization algorithm. Through solving the derived sufficient conditions, a controller can be established to guarantee robust asymptotical stability and mixed H2/Passivity performance of uncertain drum-boiler system. Based on simulation …

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Study Of Factors Influencing Mobile Ticketing Adoption: Status Quo Bias Perspective, Qun Zhao, Chun-Der Chen, Jin-Long Wang, Kuang-Ju Wang Oct 2016

Study Of Factors Influencing Mobile Ticketing Adoption: Status Quo Bias Perspective, Qun Zhao, Chun-Der Chen, Jin-Long Wang, Kuang-Ju Wang

Journal of Marine Science and Technology–Taiwan

The purpose of this study is to employ the status quo bias theory to determine the key factors behind the adoption of mobile ticketing by mobile users. Using a survey of 241 mobile ticketing users, structural equation modelling is applied to analyze the validity and reliability of the results. We find that perceived value, self-efficacy, and system support are the most important predictors of switching to mobile ticketing, with perceived value the dominant effect. Hence, it is important to emphasize the benefits of mobile ticketing to increase the perceived value to potential users. Furthermore, a seamless mobile ticketing system with …

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Fuzzy Control Via Imperfect Premise Matching Approach For Discrete Takagi-Sugeno Fuzzy Systems With Multiplicative Noises, Wen-Jer Chang, Che-Pin Kuo, Cheung-Chieh Ku Oct 2016

Fuzzy Control Via Imperfect Premise Matching Approach For Discrete Takagi-Sugeno Fuzzy Systems With Multiplicative Noises, Wen-Jer Chang, Che-Pin Kuo, Cheung-Chieh Ku

Journal of Marine Science and Technology–Taiwan

In this paper, a fuzzy controller design problem is considered for the discrete-time stochastic Takagi-Sugeno fuzzy systems. The main purpose of this paper is to provide a less conservative fuzzy controller design method for the discretetime nonlinear stochastic systems, which are modeled by the T-S fuzzy models. Based on the concept of imperfect premise matching, the fuzzy controller is designed without the limitation imposed from sharing the same membership functions of fuzzy model. In other words, the imperfect premise matching technique provides a generalization approach in designing fuzzy controller. Moreover, the flexibility and robustness of proposed fuzzy controller design approach …

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A Risk Assessment Model For Buildings Of Reinforced Concrete Containing High Concentrations Of Chloride Ions, Tsai-Lung Weng Oct 2016

A Risk Assessment Model For Buildings Of Reinforced Concrete Containing High Concentrations Of Chloride Ions, Tsai-Lung Weng

Journal of Marine Science and Technology–Taiwan

Risk assessment is crucial to the safety and durability of buildings constructed using concrete with high concentrations of chloride ions. This study adopted grey statistical clustering and multi-phase fuzzy statistics in the development of a risk assessment model for existing reinforced concrete buildings. In the proposed model, evaluative indicators are divided into two categories: strength category included compressive strength and corrosion category included carbonation depth, chloride ion content, and steel corrosion current. Overall, the risk to the building can be divided into three levels (low, medium, and high) based on critical values in risk evaluation strategies, parameter weights, and grey …

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Behaviour Of A Spd Switchable Glazing In An Outdoor Test Cell With Heat Removal Under Varying Weather Conditions, Aritra Ghosh, Brian Norton, Aidan Duffy Oct 2016

Behaviour Of A Spd Switchable Glazing In An Outdoor Test Cell With Heat Removal Under Varying Weather Conditions, Aritra Ghosh, Brian Norton, Aidan Duffy

Articles

Suspended particle device (SPD) switchable glazing has potential to control transmission of solar radiation in the visible range by changing its transparency from 55% to 5%. Outdoor test cell characterisation of a SPD switchable glazing offered the dynamic solar heat gain coefficient (SHGC) which varied between 0.05 (when opaque) and 0.38 (when transparent). Reduction of maximum temperature rise of 11% and 15% was possible using SPD “transparent” and “opaque” state compared to same area double-glazing. Insulated test cell with water flow heat exchanger was employed to measure the cooling load reduction potential of SPD glazing while its transmission changed from …

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Synchronization Of Coupled Neurons Via Robust Feedback, Hector Puebla, Ricardo Aguilar-Lopez, Priti Kumar Roy Oct 2016

Synchronization Of Coupled Neurons Via Robust Feedback, Hector Puebla, Ricardo Aguilar-Lopez, Priti Kumar Roy

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

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A Cellular Automation Which Incorporates Finite Element Method And Meshless Algorithm, Yong Cai, Zeyun Chen, Weifeng Yuan Oct 2016

A Cellular Automation Which Incorporates Finite Element Method And Meshless Algorithm, Yong Cai, Zeyun Chen, Weifeng Yuan

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Effect Of Preparation Technology On Arc Erosion Resistance Of Mgo/Cu Contact Materials, Xiuhua Guo, Kexing Song, Yanmin Zhang, Xuebin Zhang, Jianxin Gao Oct 2016

Effect Of Preparation Technology On Arc Erosion Resistance Of Mgo/Cu Contact Materials, Xiuhua Guo, Kexing Song, Yanmin Zhang, Xuebin Zhang, Jianxin Gao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Cement Asphalt Mortar Modelling And Its Influence On High-Speed Train–Bridge System In Presence Of Moderate Earthquakes And Service Loading, Lingkun Chen Oct 2016

Cement Asphalt Mortar Modelling And Its Influence On High-Speed Train–Bridge System In Presence Of Moderate Earthquakes And Service Loading, Lingkun Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Nondestructive Testing And Structural Health Monitoring Based On Adams And Svm Techniques, Gang Jiang, Yi Ming Deng, Ji Tai Niu Oct 2016

Nondestructive Testing And Structural Health Monitoring Based On Adams And Svm Techniques, Gang Jiang, Yi Ming Deng, Ji Tai Niu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Thermodynamic Calculation Of The Liquidus Surface Projection Of Multi-Component Aluminum Alloys, Jingrui Zhao, Yong Du, Lijun Zhang, Jixue Zhou, Yuansheng Yang Oct 2016

Thermodynamic Calculation Of The Liquidus Surface Projection Of Multi-Component Aluminum Alloys, Jingrui Zhao, Yong Du, Lijun Zhang, Jixue Zhou, Yuansheng Yang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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A356 Aluminum Alloy, Grain Refining, Modification, Microstructure, Mechanical Properties, Jonghun Yoon Oct 2016

A356 Aluminum Alloy, Grain Refining, Modification, Microstructure, Mechanical Properties, Jonghun Yoon

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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A Molecular Dynamics Study Of Activated Tungsten Inert Gas Welding Process, Cheng Jin, Hanchen Huang Oct 2016

A Molecular Dynamics Study Of Activated Tungsten Inert Gas Welding Process, Cheng Jin, Hanchen Huang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Novel Closed-Loop Control Strategy For Inkjet-Based Additive Manufacturing System, Yunong Shi, Chunsheng Ye Oct 2016

Novel Closed-Loop Control Strategy For Inkjet-Based Additive Manufacturing System, Yunong Shi, Chunsheng Ye

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Study On Adsorption For Pb2+ Of Red Mud Sintering-Expanded Haydites, Aoping He, Wenfeng Zhu, Linjiang Wang, Jianmin Zeng, Xiyong Chen Oct 2016

Study On Adsorption For Pb2+ Of Red Mud Sintering-Expanded Haydites, Aoping He, Wenfeng Zhu, Linjiang Wang, Jianmin Zeng, Xiyong Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Effect Of Thickness Of Anode Functional Layer On Electrochemical Performance Of Ni-Ce0.8gd0.2o1.9 Anode-Supported Solid Oxide Fuel Cells, Xueping Guo, Kaiping Peng, Chan Zheng, Wei Li, Wenzhe Chen Oct 2016

Effect Of Thickness Of Anode Functional Layer On Electrochemical Performance Of Ni-Ce0.8gd0.2o1.9 Anode-Supported Solid Oxide Fuel Cells, Xueping Guo, Kaiping Peng, Chan Zheng, Wei Li, Wenzhe Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Study On Impact And Friction Properties Of Za45si3cu Alloy, Weihe Shi Oct 2016

Study On Impact And Friction Properties Of Za45si3cu Alloy, Weihe Shi

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Modelling The Evaporation Of Aluminum In Ti–6al–4v Alloy Melted With Electron Beam And Laser, Xuan Wang, Liang Wang, Liang S. Luo, Yan Q. Su, Xin Z. Li, Rui R. Chen, Jing J. Guo, Heng Z. Fu Oct 2016

Modelling The Evaporation Of Aluminum In Ti–6al–4v Alloy Melted With Electron Beam And Laser, Xuan Wang, Liang Wang, Liang S. Luo, Yan Q. Su, Xin Z. Li, Rui R. Chen, Jing J. Guo, Heng Z. Fu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Study On Criterion Of Fabricating Columnar Dendrite Structure Dz466 Superalloy Based On Lmc Process, Xun Sun Oct 2016

Study On Criterion Of Fabricating Columnar Dendrite Structure Dz466 Superalloy Based On Lmc Process, Xun Sun

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Surface Engineering Of Titanium Alloy To Stimulate The Bone Regeneration, Yubin Meng, Zhenduo Cui, Zhaoyang Li, Xue Li, Jin Zhao, Xubo Yuan, Xianjin Yang Oct 2016

Surface Engineering Of Titanium Alloy To Stimulate The Bone Regeneration, Yubin Meng, Zhenduo Cui, Zhaoyang Li, Xue Li, Jin Zhao, Xubo Yuan, Xianjin Yang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Research On Aseismic Behavior Of Assemble-Type Composited Wall, Yuanyuan Zhao Oct 2016

Research On Aseismic Behavior Of Assemble-Type Composited Wall, Yuanyuan Zhao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Experimental Investigation On Recovery Of Fe-Ni Alloy From Bayer Red Mud And Laterite Nickel, Aoping He, Chen Liu, Jianmin Zeng Oct 2016

Experimental Investigation On Recovery Of Fe-Ni Alloy From Bayer Red Mud And Laterite Nickel, Aoping He, Chen Liu, Jianmin Zeng

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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Urban Water Project At Food Finders, Abby Zielinski Oct 2016

Urban Water Project At Food Finders, Abby Zielinski

Purdue Journal of Service-Learning and International Engagement

Abby Zielinski is a sophomore in environmental and ecological engineering. In this article, she describes her community experience at Food Finders Resource and Education Center, which was associated with a course called Urban Water Projects.

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The Smart Airport App, Transit.Io: The Travel Optimizer, Jacqueline Andrews, Devin Burke, Uvika Chaturvedi, Jake Collins, Pranav Gupta, Vikrant Neb, Harsh Somani, Alyssa Williams Oct 2016

The Smart Airport App, Transit.Io: The Travel Optimizer, Jacqueline Andrews, Devin Burke, Uvika Chaturvedi, Jake Collins, Pranav Gupta, Vikrant Neb, Harsh Somani, Alyssa Williams

Purdue Journal of Service-Learning and International Engagement

Jacqueline Andrews, Devin Burke, Uvika Chaturvedi, Jake Collins, Pranav Gupta, Vikrant Neb, Harsh Somani, and Alyssa Williams were all seniors in industrial engineering in the spring semester of 2016. They were members of Team 3 in the course titled Human Factors and Work Analysis (IE 486). This course explores the application of engineering, computer sciences, information sciences, and psychological principles and methods to the analysis and design of human work systems. In this article, the students describe their development of an application prototype to improve the airport travel experience.

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Reducing Landfill Waste: Implementation And Optimization Of A Vermicomposting System, John Hemmerling, Jeremy Pan, Sahil Bhalla, Karan Kedia Oct 2016

Reducing Landfill Waste: Implementation And Optimization Of A Vermicomposting System, John Hemmerling, Jeremy Pan, Sahil Bhalla, Karan Kedia

Purdue Journal of Service-Learning and International Engagement

John Hemmerling, a senior in chemical engineering and project leader, Jeremy Pan, a sophomore in computer science, and Sahil Bhalla and Karan Kedia, both freshman in first-year engineering, are a team of four students participating in the Engineering Projects in Community Service (EPICS) Environmental Improvement Initiatives (EII). In this article they describe how they are investigating waste generation reduction at the Retrofit Net-Zero Energy Water and Waste (ReNEWW) house in West Lafayette, Indiana, in conjunction with Whirlpool Corporation. Their work is intended to provide guidance to households on implementing vermicomposting systems so food waste can be diverted from our landfills.

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Microstructures And Properties Of Sintered Cu–Mos2/Cu Functional Gradient Materials, Aiqin Wang Oct 2016

Microstructures And Properties Of Sintered Cu–Mos2/Cu Functional Gradient Materials, Aiqin Wang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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(Alpha + Gamma) Ultrafine Duplex Structure Formation In Twophase Stainless Steel By High-Pressure Torsion And Annealing, Mie Ota, Kei Ameyama, Daiki Nanya, Sanjay Kumar Vajpai Oct 2016

(Alpha + Gamma) Ultrafine Duplex Structure Formation In Twophase Stainless Steel By High-Pressure Torsion And Annealing, Mie Ota, Kei Ameyama, Daiki Nanya, Sanjay Kumar Vajpai

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.

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