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Articles 5611 - 5640 of 8614
Full-Text Articles in Entire DC Network
Geometrical Optimisation Of A Rotary Compressor For Refrigerators, Kim Tiow Ooi
Geometrical Optimisation Of A Rotary Compressor For Refrigerators, Kim Tiow Ooi
International Compressor Engineering Conference
No abstract provided.
Lubrication Mechanism At Thrust Slide-Bearing Of Scroll Compressors (Theoretical Study), Tatsuya Oku, Keiko Anami, Noriaki Ishii, Kiyoshi Sano
Lubrication Mechanism At Thrust Slide-Bearing Of Scroll Compressors (Theoretical Study), Tatsuya Oku, Keiko Anami, Noriaki Ishii, Kiyoshi Sano
International Compressor Engineering Conference
No abstract provided.
Analysis Of Convective Instabilities Of Binary Nanofluids, Yong Tae Kang, Jake Kim, Chang Kyun Choi
Analysis Of Convective Instabilities Of Binary Nanofluids, Yong Tae Kang, Jake Kim, Chang Kyun Choi
International Refrigeration and Air Conditioning Conference
No abstract provided.
Np-Hardness Of Cache Mapping, Zhiyuan Li, Rong Xu
Np-Hardness Of Cache Mapping, Zhiyuan Li, Rong Xu
Department of Computer Science Technical Reports
No abstract provided.
Performance Of Compressor Driven Metal Hydride Cooling Systems Under Different Operating Conditions, Sagnik Mazumdar, M. Ram Gopal, Souvik Bhattacharyya
Performance Of Compressor Driven Metal Hydride Cooling Systems Under Different Operating Conditions, Sagnik Mazumdar, M. Ram Gopal, Souvik Bhattacharyya
International Refrigeration and Air Conditioning Conference
No abstract provided.
A Methodology For Diagnosing Multiple-Simultaneous Faults In Rooftop Air Conditioners, Haorong Li, James E. Braun
A Methodology For Diagnosing Multiple-Simultaneous Faults In Rooftop Air Conditioners, Haorong Li, James E. Braun
International Refrigeration and Air Conditioning Conference
No abstract provided.
Numerical Simulation And Performance Analysis Of Rotary Vane Compressors For Automobile Air Conditioner, Jian Hua Wu, Li Zhang, Lan Qing Huang, Yong Yu Tang
Numerical Simulation And Performance Analysis Of Rotary Vane Compressors For Automobile Air Conditioner, Jian Hua Wu, Li Zhang, Lan Qing Huang, Yong Yu Tang
International Compressor Engineering Conference
No abstract provided.
Constrained Multi-Objective Optimization Of A Condenser Coil Using Evolutionary Algorithms, Vikrant C. Aute, Reinhard Radermacher, Mahesh Valiya Naduvath
Constrained Multi-Objective Optimization Of A Condenser Coil Using Evolutionary Algorithms, Vikrant C. Aute, Reinhard Radermacher, Mahesh Valiya Naduvath
International Refrigeration and Air Conditioning Conference
No abstract provided.
Simulation Of The Silica Gel-Water Adsorption Chillers, Xio Lin Wang, Hui Tong Chua, Kim Choon Ng
Simulation Of The Silica Gel-Water Adsorption Chillers, Xio Lin Wang, Hui Tong Chua, Kim Choon Ng
International Refrigeration and Air Conditioning Conference
No abstract provided.
An Adsorption Chiller Driven By Thermoelectricity, Hui Tong Chua, Anutosh Chakraborty, Xiao Lin Wang
An Adsorption Chiller Driven By Thermoelectricity, Hui Tong Chua, Anutosh Chakraborty, Xiao Lin Wang
International Refrigeration and Air Conditioning Conference
No abstract provided.
Numerical Study And Experimental Validation Of A Transcritical Carbon Dioxide Refrigerating Cycle, Joaquim Rigola, Sergio Morales, Gustavo Raush, Carlos C. Perez Segarra, Nicolas Ablanque
Numerical Study And Experimental Validation Of A Transcritical Carbon Dioxide Refrigerating Cycle, Joaquim Rigola, Sergio Morales, Gustavo Raush, Carlos C. Perez Segarra, Nicolas Ablanque
International Refrigeration and Air Conditioning Conference
No abstract provided.
Application Of Energy Efficient Scroll Compressor For Small Cars, Sangeet Hari Kapoor, Sachin Paramane, Gyan Arora
Application Of Energy Efficient Scroll Compressor For Small Cars, Sangeet Hari Kapoor, Sachin Paramane, Gyan Arora
International Refrigeration and Air Conditioning Conference
No abstract provided.
Nonlinear Tapping Dynamics Of Multi-Walled Carbon Nanotube Tipped Atomic Force Microcantilevers, S. I. Lee, S. W. Howell, A. Raman, R. Reifenberger, C. V. Nguyen, M. Meyyappan
Nonlinear Tapping Dynamics Of Multi-Walled Carbon Nanotube Tipped Atomic Force Microcantilevers, S. I. Lee, S. W. Howell, A. Raman, R. Reifenberger, C. V. Nguyen, M. Meyyappan
Department of Physics and Astronomy Faculty Publications
The nonlinear dynamics of an atomic force microcantilever (AFM) with an attached multi-walled carbon nanotube (MWCNT) tip is investigated experimentally and theoretically. We present the experimental nonlinear frequency response of a MWCNT tipped microcantilever in the tapping mode. Several unusual features in the response distinguish it from those traditionally observed for conventional tips. The MWCNT tipped AFM probe is apparently immune to conventional imaging instabilities related to the coexistence of attractive and repulsive tapping regimes. A theoretical interaction model for the system using an Euler elastica MWCNT model is developed and found to predict several unusual features of the measured …
Meta-Analysis Of Two-Treatment Clinical Trials Including Both Continuous And Dichotomous Results, Charles F. Babbs
Meta-Analysis Of Two-Treatment Clinical Trials Including Both Continuous And Dichotomous Results, Charles F. Babbs
Weldon School of Biomedical Engineering Faculty Publications
To expedite the timely creation of medical practice guidelines, a meta-analytic method was developed to combine of both dichotomous survival data and continuous physiologic data from multiple studies comparing the same innovative clinical intervention to standard care. The method is adapted for synthesis of small, early studies of novel treatments. An aggregate ratio, R*, of the observed treatment effect to a clinically optimal treatment effect for studies in a series is computed, and compared to the 95% confidence limit for R* under the null hypothesis. Weights assigned to each study may reflect its precision, quality, or clinical relevance. Input data …
Boundary Layer Leakage Model, Jan Prins
Boundary Layer Leakage Model, Jan Prins
International Compressor Engineering Conference
No abstract provided.
Extending The Operation Range Of Dry Screw Compressors By Cooling Their Rotors, Nikola Stosic, Ian K. Smith, Ahmed Kovacevic
Extending The Operation Range Of Dry Screw Compressors By Cooling Their Rotors, Nikola Stosic, Ian K. Smith, Ahmed Kovacevic
International Compressor Engineering Conference
No abstract provided.
Theoretical And Experimental Investigation Of Compression Loads In Twin Screw Compressor, Hua Gen Wu, Yuan Ma, Zi Wen Xing
Theoretical And Experimental Investigation Of Compression Loads In Twin Screw Compressor, Hua Gen Wu, Yuan Ma, Zi Wen Xing
International Compressor Engineering Conference
No abstract provided.
A Three-Dimensional Quantum Simulation Of Silicon Nanowire Transistors With The Effective Mass Approximation, Jing Wang, Eric Polizzi, Mark S. Lundstrom
A Three-Dimensional Quantum Simulation Of Silicon Nanowire Transistors With The Effective Mass Approximation, Jing Wang, Eric Polizzi, Mark S. Lundstrom
Department of Electrical and Computer Engineering Faculty Publications
The silicon nanowire transistor (SNWT) is a promising device structure for future integrated circuits, and simulations will be important for understanding its device physics and assessing its ultimate performance limits. In this work, we present a three-dimensional (3D) quantum mechanical simulation approach to treat various SNWTs within the effective-mass approximation. We begin by assuming ballistic transport, which gives the upper performance limit of the devices. The use of a mode space approach (either coupled or uncoupled) produces high computational efficiency that makes our 3D quantum simulator practical for extensive device simulation and design. Scattering in SNWTs is then treated by …
Analysis Of A Phase Change Energy Storage System For Pulsed Power Dissipation, S Krishnan, S V. Garimella
Analysis Of A Phase Change Energy Storage System For Pulsed Power Dissipation, S Krishnan, S V. Garimella
CTRC Research Publications
The melting of a phase change material in a container of rectangular cross-section with multiple discrete heat sources mounted on one side is investigated for electronics cooling by latent heat energy storage. This numerical study focuses on the thermal management issues that arise when electronic components experience sudden surges in power dissipation. The transient response of the energy storage system to short pulses in power dissipation is studied. Convective cooling using air-cooled heat sinks on the sides of the containment remote from the heat sources provides for heat rejection to ambient air. The analysis is performed under different pulse frequencies. …
Transport In Flat Heat Pipes At High Heat Fluxes From Multiple Discrete Sources, U. Vadakkan, S V. Garimella, J. Y. Murthy
Transport In Flat Heat Pipes At High Heat Fluxes From Multiple Discrete Sources, U. Vadakkan, S V. Garimella, J. Y. Murthy
CTRC Research Publications
A three-dimensional model has been developed to analyze the transient and steady-state performance of flat heat pipes subjected to heating with multiple discrete heat sources. Three-dimensional flow and energy equations are solved in the vapor and liquid regions, along with conduction in the wall. Saturated flow models are used for heat transfer and fluid flow through the wick. In the wick region, the analysis uses an equilibrium model for heat transfer and a Brinkman-Forchheimer extended Darcy model for fluid flow. Averaged properties weighted with the porosity are used for the wick analysis. The state equation is used in the vapor …
Thermal Management Of Transient Power Spikes In Electronics - Phase Change Energy Storage Or Copper Heat Sinks?, S. Krishnan, S V. Garimella
Thermal Management Of Transient Power Spikes In Electronics - Phase Change Energy Storage Or Copper Heat Sinks?, S. Krishnan, S V. Garimella
CTRC Research Publications
A transient thermal analysis is performed to investigate thermal control of power semiconductors using phase change materials, and to compare the performance of this approach to that of copper heat sinks. Both the melting of the phase change material under a transient power spike input, as well as the resolidification process, are considered. Phase change materials of different kinds (paraffin waxes and metallic alloys) are considered, with and without the use of thermal conductivity enhancers. Simple expressions for the melt depth, melting time and temperature distribution are presented in terms of the dimensions of the heat sink and the thermophysical …
A Two-Temperature Model For The Analysis Of Passive Thermal Control Systems, S. Krishnan, J. Y. Murthy, S V. Garimella
A Two-Temperature Model For The Analysis Of Passive Thermal Control Systems, S. Krishnan, J. Y. Murthy, S V. Garimella
CTRC Research Publications
Passive control of steady and unsteady thermal loads using effective thermal conductivity enhancers, such as metal foams, internal fins and metal filler particles, is being explored for a variety of electronics applications. The interstices are filled with air, phase change materials, or other fluids. Local thermal equilibrium between the solid filler and the matrix is not ensured in such systems since their thermal diffusivities are frequently very different. The use of a single volume-averaged energy equation for both the phases cannot be justified in such situations. A two-medium approach is used in the present work to account for the local …
Design Of Flapper Valves For A Co2 Commercial Refrigeration Compressor, Douglas A. Collings, Thomas J. Weadock
Design Of Flapper Valves For A Co2 Commercial Refrigeration Compressor, Douglas A. Collings, Thomas J. Weadock
International Compressor Engineering Conference
No abstract provided.
Optimizing Chest Compression To Rescue Ventilation Ratios During One-Rescuer Cpr By Professionals And Lay Persons: Children Are Not Just Little Adults, Charles F. Babbs, Vinay Nadkarni
Optimizing Chest Compression To Rescue Ventilation Ratios During One-Rescuer Cpr By Professionals And Lay Persons: Children Are Not Just Little Adults, Charles F. Babbs, Vinay Nadkarni
Weldon School of Biomedical Engineering Faculty Publications
Objective: To estimate the optimum ratio of chest compressions to ventilations for onerescuer CPR that maximizes systemic oxygen delivery in children. Method: Equations describing oxygen delivery and blood flow during CPR as functions of the number of compressions and the number of ventilations delivered over time were adapted from the former work of Babbs and Kern. These equations were solved explicitly as a function of body weight, using scaling algorithms based upon principles of developmental anatomy and physiology. Results: The optimal compression to ventilation (C/V) ratios for infants and younger children increase sharply as a function of body weight. Optimal …
Thermal And Fluid Dynamic Behavior Of Trans-Critical Carbon Dioxide Hermetic Reciprocating Compressors: Numerical Analysis, Carlos D. Perã©Z Segarra, Joaquim Rigola, Assensi Oliva
Thermal And Fluid Dynamic Behavior Of Trans-Critical Carbon Dioxide Hermetic Reciprocating Compressors: Numerical Analysis, Carlos D. Perã©Z Segarra, Joaquim Rigola, Assensi Oliva
International Compressor Engineering Conference
No abstract provided.
Modeling And Simulation Of The Suction Process In A Multi-Cylinder Automotive Compressor, Jeong Il Park, Douglas E. Adams, Yoshinobu Ichikawa, Jacob Bayyouk
Modeling And Simulation Of The Suction Process In A Multi-Cylinder Automotive Compressor, Jeong Il Park, Douglas E. Adams, Yoshinobu Ichikawa, Jacob Bayyouk
International Compressor Engineering Conference
No abstract provided.
Analysis Of Structural Mistuning Effects On Bladed Disc Vibrations Including Aerodynamic Damping, Yoon S. Choi, Dana A. Gottfried, Sanford Fleeter
Analysis Of Structural Mistuning Effects On Bladed Disc Vibrations Including Aerodynamic Damping, Yoon S. Choi, Dana A. Gottfried, Sanford Fleeter
International Compressor Engineering Conference
No abstract provided.
Performance Study Of A 3-Ton Residential Co2 A/C System With A Variable Flow Rate Co2 Compressor, Rodney A. Hugelman
Performance Study Of A 3-Ton Residential Co2 A/C System With A Variable Flow Rate Co2 Compressor, Rodney A. Hugelman
International Compressor Engineering Conference
No abstract provided.
Modeling And Testing Of An Automobile Ac Scroll Compressor, Part I: Model Development, Feng Shou Yi, Eckhard A. Groll, James A. Braun
Modeling And Testing Of An Automobile Ac Scroll Compressor, Part I: Model Development, Feng Shou Yi, Eckhard A. Groll, James A. Braun
International Compressor Engineering Conference
No abstract provided.
Modeling And Testing Of An Automobile Ac Scroll Compressor, Part Ii: Model Validation, Feng Shou Yi, Eckhard A. Groll, James A. Braun
Modeling And Testing Of An Automobile Ac Scroll Compressor, Part Ii: Model Validation, Feng Shou Yi, Eckhard A. Groll, James A. Braun
International Compressor Engineering Conference
No abstract provided.