Results 241 to 250 of about 33,170,271 (311)
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IEEE Transactions on Power Apparatus and Systems, 1963
A direct measurement of shaft angular acceleration may be made with a conventional drag cup tachometer operated as an accelerometer. In this operating mode the tachometer is supplied with direct current and provides a direct voltage proportional to acceleration.
J. Law, D. W. Novotny
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A direct measurement of shaft angular acceleration may be made with a conventional drag cup tachometer operated as an accelerometer. In this operating mode the tachometer is supplied with direct current and provides a direct voltage proportional to acceleration.
J. Law, D. W. Novotny
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Two-phase flow control of on-chip two-phase cooling systems of servers
2012 28th Annual IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2012Thermal designers of data centers and server manufacturers are showing a great concern regarding the cooling of new generation data centers, which are more compact and dissipate more power than is currently possible to cool by conventional air conditioning systems. With very large data centers exceeding 100 000 servers, some consume more than 50 MW [1]
Marcinichen, Jackson Braz +1 more
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A bi-directional two-phase/two-phase heat exchanger
28th Thermophysics Conference, 1993This paper describes the design and test of a heat exchanger that transfers heat from one two-phase thermal loop to another with very small drops in temperature and pressure. The heat exchanger condenses the vapor in one loop while evaporating the liquid in the other without mixing of the condensing and evaporating fluids.
JENTUNG KU, LAURA OTTENSTEIN
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Emerging aqueous two-phase systems: from fundamentals of interfaces to biomedical applications.
Chemical Society Reviews, 2019Aqueous two-phase systems (ATPSs) have been recognized for their applications in extraction, separation, purification, and enrichment of (bio)molecules and cells.
Y. Chao, H. Shum
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Review of single-phase and two-phase nanofluid heat transfer in macro-channels and micro-channels
International Journal of Heat and Mass Transfer, 2019This paper provides a comprehensive review of published literature concerning heat transfer benefits of nanofluids for both macro-channels and micro-channels.
Gangtao Liang, I. Mudawar
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Physical Review Letters, 2010
We present real-time observations of a new growth pattern called a spiral two-phase dendrite, which we observed during univariant directional solidification of a ternary-eutectic alloy. Two different crystal phases grow from the apex of a parabolic finger, forming a spiral pattern that leaves behind in the solid a double helix microstructure.
Akamatsu, Silvère +3 more
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We present real-time observations of a new growth pattern called a spiral two-phase dendrite, which we observed during univariant directional solidification of a ternary-eutectic alloy. Two different crystal phases grow from the apex of a parabolic finger, forming a spiral pattern that leaves behind in the solid a double helix microstructure.
Akamatsu, Silvère +3 more
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A two-phase preventive maintenance policy considering imperfect repair and postponed replacement
European Journal of Operational Research, 2019This paper investigates a novel two-phase preventive maintenance policy for a single-component system with an objective of maximizing the revenue generated by the performance-based contracting (PBC). The system undergoes a defective state before failure,
Li Yang +4 more
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Dynamics of two-phase flow in vertical pipes
Journal of Fluids and Structures, 2019In this study, a novel mathematical model was proposed for the dynamic analysis of two-phase flow in vertical pipes considering different two-phase flow models by including dissipative forces.
A. Ebrahimi-Mamaghani +3 more
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ACM Transactions on Database Systems, 1986
In a large integrated database, there often exists an “information hierarchy,” where both raw data and derived data are stored and used together. Therefore, among update transactions, there will often be some that perform only read accesses from a certain (i.e., the “raw” data) portion of the database and write into another (i.e., the “derived” data ...
Meichun Hsu, Arvola Chan
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In a large integrated database, there often exists an “information hierarchy,” where both raw data and derived data are stored and used together. Therefore, among update transactions, there will often be some that perform only read accesses from a certain (i.e., the “raw” data) portion of the database and write into another (i.e., the “derived” data ...
Meichun Hsu, Arvola Chan
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Chemical Engineering Research and Design, 1998
AbstractData are presented on flow regimes, holdup and pressure drop for vertical co‐current two phase flow in a 0.026 m i.d. pipe. A universal flow regime map was not possible but flow regime transitional equations were developed for the slug to churn, churn to semi‐annular, semi‐annular to annular and annular to annular ripple boundaries.
G. S. Woods +3 more
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AbstractData are presented on flow regimes, holdup and pressure drop for vertical co‐current two phase flow in a 0.026 m i.d. pipe. A universal flow regime map was not possible but flow regime transitional equations were developed for the slug to churn, churn to semi‐annular, semi‐annular to annular and annular to annular ripple boundaries.
G. S. Woods +3 more
openaire +1 more source