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Articles 19171 - 19200 of 21933
Full-Text Articles in Entire DC Network
Initial Development Of The Orbital Vane Compressor, T. C. Edwards
Initial Development Of The Orbital Vane Compressor, T. C. Edwards
International Compressor Engineering Conference
No abstract provided.
Performance Study Of A Variable Speed Compressor With Special Attention To Supercharging Effect, Z. Liu, W. Soedel
Performance Study Of A Variable Speed Compressor With Special Attention To Supercharging Effect, Z. Liu, W. Soedel
International Compressor Engineering Conference
No abstract provided.
Contribution To Safety Aspect Discussion On Isobutane Compressors For Domestic Refrigeration, M. Zgliczynski, P. Sansalvadore
Contribution To Safety Aspect Discussion On Isobutane Compressors For Domestic Refrigeration, M. Zgliczynski, P. Sansalvadore
International Compressor Engineering Conference
No abstract provided.
Discharge Gas Pulsations In A Variable Speed Compressor, Z. Liu, W. Soedel
Discharge Gas Pulsations In A Variable Speed Compressor, Z. Liu, W. Soedel
International Compressor Engineering Conference
No abstract provided.
Simulation Of The Transient Behavior Of Household Refrigerators And Freezers, T. Tiedemann, H. Kruse
Simulation Of The Transient Behavior Of Household Refrigerators And Freezers, T. Tiedemann, H. Kruse
International Refrigeration and Air Conditioning Conference
No abstract provided.
Refrigerants Containing Fluoroiodocarbons (Fics), J. Nimitz, L. Lankford
Refrigerants Containing Fluoroiodocarbons (Fics), J. Nimitz, L. Lankford
International Refrigeration and Air Conditioning Conference
No abstract provided.
The Evolution Of Abdominal Compression In Cardiopulmonary Resuscitation, Charles F. Babbs
The Evolution Of Abdominal Compression In Cardiopulmonary Resuscitation, Charles F. Babbs
Weldon School of Biomedical Engineering Faculty Publications
Objective: To review the history of external abdominal compression as an adjunct to cardiopulmonary resuscitation (CPR), tracking the development of five major themes over the course of the 20th century: 1) augmentation of peripheral resistance by physical means, 2) risk of hepatic injury with abdominal compression, 3) counterpulsation vs. sustained compression, 4) the abdominal pump mechanism, and 5) contact compression techniques. Methods: Literature retrieved from successive MEDLINE English-language searches was reviewed with a special emphasis on work and concepts highlighted by participants at the First Purdue Conference on Interposed Abdominal Compression-CPR, September 1992. Results: External abdominal compression of one form …
Effective Bandgap Shrinkage In Gaas, E. S. Harmon, Michael R. Melloch, Mark S. Lundstrom
Effective Bandgap Shrinkage In Gaas, E. S. Harmon, Michael R. Melloch, Mark S. Lundstrom
Department of Electrical and Computer Engineering Faculty Publications
Electrical measurements of the equilibrium np product (n2ie) in heavily doped n‐ and p‐GaAs were performed. The n2ieDproduct (where D is the diffusivity) was measured by fitting the collector current‐voltage characteristic of a homojunction bipolar transistor to an ideal diode equation modified to account for transport in thin base transistors.The n2ie product was then extracted from n2ieD by utilizing diffusivity results obtained with the zero‐field time‐of‐flight technique. Our results show significant effective band‐gap shrinkage in heavily doped p‐GaAs, and very little effective band‐gap shrinkage …
Thermal Velocity Limits To Diffusive Electron Transport In Thin‐Base Np+N Gaas Bipolar Transistors, E. S. Harmon, Michael R. Melloch, Mark S. Lundstrom, F. Cardone
Thermal Velocity Limits To Diffusive Electron Transport In Thin‐Base Np+N Gaas Bipolar Transistors, E. S. Harmon, Michael R. Melloch, Mark S. Lundstrom, F. Cardone
Department of Electrical and Computer Engineering Faculty Publications
We present experimental evidence that minority electron transport across a thin, quasineutral p+ GaAs region is limited by the thermal velocity of the electrons rather than by conventional diffusive transport. A set of GaAs homojunction np+n transistors with base widths of 4000, 2000, 1000, and 500 Å was fabricated and characterized. The diffusive modelpredicts that the dc collector current of the 500‐Å base width transistors should be eight times larger than the collector current of transistors with a 4000‐Å‐wide base. The experimental results, however, show only a factor of ~3.5 increase in collector current. The measured collector …
Interposed Abdominal Compression As An Adjunct To Cardiopulmonary Resuscitation, Charles F. Babbs, Jeffrey B. Sack, Karl B. Kern
Interposed Abdominal Compression As An Adjunct To Cardiopulmonary Resuscitation, Charles F. Babbs, Jeffrey B. Sack, Karl B. Kern
Weldon School of Biomedical Engineering Faculty Publications
The addition of interposed abdominal compression (IAC) to otherwise standard CPR provides external pressure over the abdomen in counterpoint to the rhythm of chest compression. Interposed abdominal compression is a simple manual technique that can supplement the use of adrenergic drugs to increase both coronary perfusion pressure and total blood flow during CPR. Mechanistically, manual abdominal compressions induce both central aortic and central venous pressure pulses. However, owing to differences in venous versus arterial capacitance, the former are usually greater than the latter, so that systemic perfusion pressure is enhanced. Moreover, practical experience and theoretical analysis have suggested subtle refinements …
A Study Of Dc Permanent Magnet Motor Noise Related To Line Current, Candace Rogers Suriano
A Study Of Dc Permanent Magnet Motor Noise Related To Line Current, Candace Rogers Suriano
Department of Electrical and Computer Engineering Technical Reports
Lightweight, compact and inexpensive DC permanent magnet motors are well suited for low cost high production use in industry. Unfortunately, the audible noise emanating from these motors can cause a false negative perception of the motor's quality. In cars, for example, fan motor noise can be a nuisance. The objective of this thesis is to examine the connection between motor noise and the line current wave form for a specific four pole DC permanent magnet motor. It is further concerned with identifying the underlying factors which influence the line current ripple. An audible noise to motor current transfer function is …
Electron-Phonon And Electron-Electron Interactions In Quantum Transport, Gerhard Klimeck
Electron-Phonon And Electron-Electron Interactions In Quantum Transport, Gerhard Klimeck
Department of Electrical and Computer Engineering Technical Reports
The objective of this work is to shed light on electron transport through sub-micron semiconductor structures, where electronic state quantization, electron-electron interactions and electron-phonon interactions are important. We concentrate here on the most developed vertical quantum device, the double barrier resonant tunneling diode. In this work we analyze particle interactions in two structural limits: 1) large, and 2) small cross-sections, in which the treatments are fundamentally different. Large cross-section structures involve particle-interactions with many electrons and these effects can be described in the Keldysh formalism in a single-particle picture by effective potentials. We present model calculations treating the phonon-peak a,nd …
Lysholm Machines As Two-Phase Expanders, I. K. Smith, N. Stosic, C. A. Aldis
Lysholm Machines As Two-Phase Expanders, I. K. Smith, N. Stosic, C. A. Aldis
International Compressor Engineering Conference
No abstract provided.
Tutoring And Teaching: Continuum, Dichotomy, Or Dialectic, Helon Howell Raines
Tutoring And Teaching: Continuum, Dichotomy, Or Dialectic, Helon Howell Raines
The Writing Center Journal
No abstract provided.
Library Development In Lusophone Africa, Margaret O. Saunders, E. Stewart Saunders
Library Development In Lusophone Africa, Margaret O. Saunders, E. Stewart Saunders
Libraries Research Publications
Traces the history and development of libraries in Lusophone Africa. Covers public, academic, government, and scientific libraries; also covers library education and the library profession.
Library Development In Francophone Africa, Margaret O. Saunders, E. Stewart Saunders
Library Development In Francophone Africa, Margaret O. Saunders, E. Stewart Saunders
Libraries Research Publications
Traces the history and development of libraries in Francophone Africa. Covers public, academic, government, and scientific libraries; also covers library education and the library profession.
System Performance Of Some Long Term R-502 Replacements, J. W. Linton, W. K. Snelson, A. R. Triebe, P. F. Hearty
System Performance Of Some Long Term R-502 Replacements, J. W. Linton, W. K. Snelson, A. R. Triebe, P. F. Hearty
International Refrigeration and Air Conditioning Conference
No abstract provided.
Information On Alternative Refrigerants: Status Of The Refrigerant Database, J. M. Calm
Information On Alternative Refrigerants: Status Of The Refrigerant Database, J. M. Calm
International Refrigeration and Air Conditioning Conference
No abstract provided.
Smooth Low Degree Approximations Of Polyhedra, Chandrajit L. Bajaj, Jindon Chen, Guoliang Xu
Smooth Low Degree Approximations Of Polyhedra, Chandrajit L. Bajaj, Jindon Chen, Guoliang Xu
Department of Computer Science Technical Reports
No abstract provided.
Bibliography Of Recent Writing Center Scholarship (Nov. 1993-Oct. 1994), Michael Condon
Bibliography Of Recent Writing Center Scholarship (Nov. 1993-Oct. 1994), Michael Condon
The Writing Center Journal
No abstract provided.
A Review Of Literacy And Computers: The Complications Of Teaching And Learning With Technology, Bob Whipple
A Review Of Literacy And Computers: The Complications Of Teaching And Learning With Technology, Bob Whipple
The Writing Center Journal
No abstract provided.
Revisiting "The Idea Of A Writing Center", Stephen M. North
Revisiting "The Idea Of A Writing Center", Stephen M. North
The Writing Center Journal
No abstract provided.
Live And On Stage: Writing Center Stories And Tutorial Authority, Thomas Hemmeter
Live And On Stage: Writing Center Stories And Tutorial Authority, Thomas Hemmeter
The Writing Center Journal
No abstract provided.
Writing Centers And The Idea Of Consultancy, William Mccall
Writing Centers And The Idea Of Consultancy, William Mccall
The Writing Center Journal
No abstract provided.
Institutional And Intimate Contexts: A Review Of Recent Writing Center Scholarship, Bradley T. Hughes
Institutional And Intimate Contexts: A Review Of Recent Writing Center Scholarship, Bradley T. Hughes
The Writing Center Journal
No abstract provided.
An Evaluation Of The Strategic Highway Research Project Packing Handbook, Kenneth P. Cox, Charles F. Scholer, Menashi D. Cohen
An Evaluation Of The Strategic Highway Research Project Packing Handbook, Kenneth P. Cox, Charles F. Scholer, Menashi D. Cohen
JTRP Technical Reports
The objective of this research is to evaluate the use of the November 8, 1991 SHRP C-206 report entitled, “Packing Handbook – A Guide to the Optimal Gradation of Concrete Aggregates”. The purpose of the Packing Handbook is to determine the optimal combination of fine and coarse aggregates for concrete from available aggregate sources. Through the use of tables provided in the Packing Handbook, and given sources with known aggregate gradations and void contents, the relative proportion of each aggregate (coarse and fine) is obtained. Concretes made using the Packing Handbook recommendations of aggregate proportioning were compared to concretes used …