Results 241 to 250 of about 25,719,394 (288)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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
Neurocomputing, 2015
Hashing methods have become important retrieval methods for large image databases due to its fast searching time. However, current hashing methods mapping high dimensional real-valued vectors of images to low dimensional hash codes directly may not yield good performance.
Wing W. Y. Ng +3 more
openaire +2 more sources
Hashing methods have become important retrieval methods for large image databases due to its fast searching time. However, current hashing methods mapping high dimensional real-valued vectors of images to low dimensional hash codes directly may not yield good performance.
Wing W. Y. Ng +3 more
openaire +2 more sources
Journal of the ACM, 1985
Many database systems maintain the consistency of the data by using a locking protocol to restrict access to data items. It has been previously shown that if no information is known about the method of accessing items in the database, then the two-phase protocol is optimal.
Gael N. Buckley, Abraham Silberschatz
openaire +3 more sources
Many database systems maintain the consistency of the data by using a locking protocol to restrict access to data items. It has been previously shown that if no information is known about the method of accessing items in the database, then the two-phase protocol is optimal.
Gael N. Buckley, Abraham Silberschatz
openaire +3 more sources
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
openaire +2 more sources
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
openaire +2 more sources
A Hierarchy of Models for Two-Phase Flows
Journal of Nonlinear Science, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
François Bouchut +3 more
openaire +2 more sources
Two-phase flow models in unbounded two-phase critical flows
Nuclear Engineering and Design, 1986Abstract Referring to a Loss-of-Coolant Accident situation in LWRs, an analysis of the two-phase region just downstream from the broken pipe, in which a two-phase critical flow takes place, has been performed. A characterization of the flow pattern inside the unbounded two-phase jet is given considering: • - jet's external shape, obtained by ...
G.P. Celata +3 more
openaire +1 more source
Acta crystallographica. Section B, Structural science
The solvent-bridged caesium phosphide [CsPH(eta6-2,4,6-(t)Bu3C6H2)]2(eta3-toluene)0.5x, catena-[(micro-eta3-toluene)-bis[caesium(2,4,6-tri-tert-butylphenylphosphide)]], undergoes a reversible solid-state, order-disorder phase transition characterized by the doubling of the unit-cell volume at low temperature achieved by doubling one unit-cell vector ...
, Concolino +4 more
openaire +1 more source
The solvent-bridged caesium phosphide [CsPH(eta6-2,4,6-(t)Bu3C6H2)]2(eta3-toluene)0.5x, catena-[(micro-eta3-toluene)-bis[caesium(2,4,6-tri-tert-butylphenylphosphide)]], undergoes a reversible solid-state, order-disorder phase transition characterized by the doubling of the unit-cell volume at low temperature achieved by doubling one unit-cell vector ...
, Concolino +4 more
openaire +1 more source
Separated two-phase flow model: application to critical two-phase flow
International Journal of Multiphase Flow, 1983Abstract A separated flow model has been developed to allow the calculation of critical flow rates for steam-water mixtures. This model considers hydrodynamic as well as thermal non-equilibrium effects which are present due to rapid depressurization. Thus, this model incorporates interphase interaction terms for momentum, energy and mass.
openaire +2 more sources
A Stochastic Two-phase Growth Model
Bulletin of Mathematical Biology, 1998This article proposes a stochastic growth model that starts as a Yule process and is subsequently joined with a Prendiville process when the population attains certain prescribed critical size. In other words, the model assumes a exponential growth in an early stage and logistic growth later on to reflect growth retardation caused by overcrowding.
openaire +2 more sources
Two-phase palmprint identification
International Journal of Biometrics, 2020Hemantha Kumar Kalluri +3 more
openaire +2 more sources