Digital Commons Network^™

The Effect Of Refrigerants On The Lubrication Of Rolling Element Bearings Used In Screw Compressors, F. P. Wardle, B. Jacobson, H. Dolfsma, E. Hoglund, U. Jonsson

International Compressor Engineering Conference

No abstract provided.

Using Shot Peening To Multiply The Life Of Compressor Components, J. S. Eckersley, B. Ferrelli

International Compressor Engineering Conference

No abstract provided.

Calculation Of Optimal Value Of Taper For The Drive Pin Of The Scroll Compressor Crankshaft, D. Boyle

International Compressor Engineering Conference

No abstract provided.

Modelling Adiabatic Capillary Tubes: A Critical Analysis, C. Melo, R. T. S. Ferreira, R. H. Pereira

International Refrigeration and Air Conditioning Conference

No abstract provided.

A Computer-Based, Automated, Telephonic System To Monitor Patient Progress In The Home Setting, Umesh H. Patel, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

In this report we describe an automated, telephonic system to monitor the progress of patients convalescing at home. The system includes a computerized central station that is capable of automated voice communication over the telephone, using voice reproduction, and touch-tone recognition. Peripheral hardware in multiple monitored homes need include only a touch-tone telephone, but may also be augmented by inexpensive, rudimentary diagnostic aids, such as a scale for body weight, a thermometer, or a blood pressure cuff and manometer. Current central hardware includes a NeXT computer, a fax modem, and a specialized telecommunications modem developed specifically for voice telecommunication using …

A Study Of Minority Carrier Lifetime Versus Doping Concentration In N‐Type Gaas Grown By Metalorganic Chemical Vapor Deposition, Gregory Benedict Lush, H. F. Macmillan, B. M. Keyes, D. H. Levi, Michael R. Melloch, R. K. Ahrenkiel, Mark S. Lundstrom

Department of Electrical and Computer Engineering Faculty Publications

Time‐resolved photoluminescence decay measurements are used to explore minority carrier recombination in n‐type GaAs grown by metalorganic chemical vapor deposition, and doped with selenium to produce electron concentrations from 1.3×10¹⁷ cm⁻³ to 3.8×10¹⁸ cm⁻³. For electron densities n₀<10¹⁸ cm⁻³, the lifetime is found to be controlled by radiative recombination and photon recycling with no evidence of Shockley–Read–Hall recombination. For higher electron densities, samples show evidence of Shockley–Read–Hall recombination as reflected in the intensity dependence of the photoluminescence decay. Still, we find that radiative recombination and photon recycling are important for …

Modeling And Simulation Of A Scroll Compressor Using Bond Graphs, D. L. Margolis, S. Craig, G. Nowakowski, M. Inada, M. Dearing

International Compressor Engineering Conference

No abstract provided.

A Real Gas Simulation Of A Refrigeration Compressor And Its Performance Comparison For Cfcs And Non-Cfcs, K. T. Ooi, T. N. Wong, E. C. Kwek

International Compressor Engineering Conference

No abstract provided.

The Two Stage Compound Screw Low Molecular Weight Gas Compressor, M. Y. Dreksler

International Compressor Engineering Conference

No abstract provided.

A Massively Parallel Mimd Implemented By Simd Hardware?, H. G. Dietz, W E. Cohen

Department of Electrical and Computer Engineering Technical Reports

Both conventional wisdom and engineering practice hold that a massively parallel MIMD machine should be constructed using a large number of independent processors and an asynchronous interconnection network. In this paper, we suggest that it may be beneficial to implement a massively parallel MIMD using microcode on a massively parallel SIMD microengine; the synchronous nature of the system allows much higher performance to be obtained with simpler hardware. The primary disadvantage is simply that the SIMD microengine must serialize execution of different types of instructions - but again the static nature of the machine allows various optimizations that can minimize …

Optimum Combination Of Parameters For High Mechanical Efficiency Of A Scroll Compressor, Noriaki Ishii, Shuichi Yamamoto, Shigeru Muramatsu, Michio Yamamura, Masatoshi Takahashi

International Compressor Engineering Conference

No abstract provided.

Calculation Of The Displacernent Of A Wankel Rotary Compressor, J. E. Beard, G. R. Pennock

International Compressor Engineering Conference

No abstract provided.

Characterization Of Thermal Processes In Scroll Compressors, T. C. Wagner, A. J. Marchese, D. J. Mcfarlin

International Compressor Engineering Conference

No abstract provided.

Analytical Modeling Of Discharge Flow Dynamics In Scroll Compressors, J. J. Nieter, D. P. Gagne

International Compressor Engineering Conference

No abstract provided.

Coupling The Effects Of Reciprocating Compressor Valve Dynamics With Piping Acoustic Response, L. E. Rogers

International Compressor Engineering Conference

No abstract provided.

Development Of A Computer Simulation Program For The Acoustic Tuning Of Rolling Piston Compressors, G. Prater, E. E. Ratterman

International Compressor Engineering Conference

No abstract provided.

Noise Reduction Analysis On Inverter Driven Two-Cylinder Rotary Compressor, R. Nonaka, A. Suda, K. Matsumoto

International Compressor Engineering Conference

No abstract provided.

Development Of New Type Rotary Compressors Suspended With Twin Springs In A Low Side Pressure Shell, S. Kawaguchi, K. Saw, M. Sakai, H. Maeyama

International Compressor Engineering Conference

No abstract provided.

Tribological Evaluation Of Contacts Lubricated By Oil-Refrigerant Mixtures, B. Davis, T. Sheiretov, C. Cusano

International Compressor Engineering Conference

No abstract provided.

Study On The Oil Supply System For Rotary Compressors, T. Itoh, H. Kobayashi, M. Fujitani, N. Murata

International Compressor Engineering Conference

No abstract provided.

Characteristics Of The Plain Bearing In Scroll Compressors, Z. N. Xiong, Z. L. Qian, Z. P. Hu

International Compressor Engineering Conference

No abstract provided.

Analytical And Experimental Investigation Of A Scroll Compressor Lubrication System, R. T. Drost, J. F. Quesada

International Compressor Engineering Conference

No abstract provided.

The Advantages Of A High Pressure Housing In A Hermetic Compressor, E. D. Fry

International Compressor Engineering Conference

No abstract provided.

Pressure Pulsation In Hermetic Casing Of Refrigerating Rotary Compressor, T. Yanagisawa, T. Shimizu, M. Fukuta, M. Ueda

International Compressor Engineering Conference

No abstract provided.

Concurrent And Simultaneous Engineering Applied To Design Hermetic Refrigeration Compressor, M.G. De Bortoli

International Compressor Engineering Conference

No abstract provided.

Optimum Circuit Tube Length And Pressure Drop On The Refrigerant Side Of Evaporators, E. Granryd

International Refrigeration and Air Conditioning Conference

No abstract provided.

Decision Making And Uncertainty, Donald G. Davis Jr., E. Stewart Saunders

Libraries Research Publications

In an article intitled, “Epistemological Dead End and Ergonomic Disaster? The North Amercian Collections Inventory Project,” Journal of Academic Librarianship 13 (September 1987): 209-213, David Henige charges that academic libraries are deceiving themselves when they assign a number to a subject collection and claim that this number represents the strength of the collection. Assigning numbers or levels to subject collections is the methodology used by the RLG Conspectus to rate academic collections. This article by Davis and Saunders offers a counter argument, based on subjective probabilities, to justify the RLG procedure.

Willing To Provide But Unable To Support: The Dilemma Of Smaller Depositories In An Electronic Era , Bert Chapman

Libraries Research Publications

The increasing influence of government information in electronic format poses acute problems for smaller depositories facing financial and personnel shortages. These constraints will increase the dependence of smalier depositories on regional depositories and may compel the smaller institutions to reassess the viability of their depository status. This cumulative predicament will make some government information inacces-sibIe to users of smaller depositories.

Recognition of this should be augmented by acceptance of the reality that existing Federal budgetary pressures, coupled with trends toward user fees in other sectors of librarianship, make free and unimpeded access to all government information an unrealistic public policy …

Effects Of The Weights Of The Evaporators On The Characteristics Of A Household Refrigerator-Freezer, G. Ding, Z. Chen

International Refrigeration and Air Conditioning Conference

No abstract provided.

Performance Evaluation Of Chlorine Free Zeotropic Refrigerant Mixtures In Heat Pumps--Computer Study And Tests, J. Pannock, D. Didion, R. Radermacher

International Refrigeration and Air Conditioning Conference

No abstract provided.