Results 261 to 270 of about 1,311,331 (302)
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Modification of plasma-etched profiles by sputtering
IEEE Transactions on Plasma Science, 1999Two-dimensional etch profiles are modeled for plasma etching. The etch rate dependence on the angle of incidence of the bombarding ions on the etched surface has a sputtering-type yield. The etch profile is advanced in time by an evolution equation for an etch rate proportional to the modified ion energy flux. Approximate analytical expressions for the
B. Abraham-Shrauner, N. Jagannathan
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A Amphoteric Copolymer Profile Modification Agent
Proceedings of SPE International Symposium on Oilfield Chemistry, 1995ABSTRACT This report provides a new gel profile modification agent prepared by a amphoteric copolymer (FT—213) and a nevol crosslinking agent (BY), and introduces the preparations of the amphoteric polymer, the crosslinking agent and the profile modification agent, the action mechanism, the conditions testing and the evaluations of the ...
Wang HongGuan +2 more
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Modeling of Profile Modification by Induced Precipitation
Proceedings of SPE International Symposium on Oilfield Chemistry, 1999AbstractThis paper presents a comprehensive two-phase, multi-species mathematical model for selective plugging of highly watered-out zones by induced precipitation. The approach considers the porous medium as having two regions (macropores and micropores) with different permeabilities. Two sets of coupled equations, one set for each region, are derived
Zhengying Shu, Jean-Claude Roegiers
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Profile Modification of a Slowly Permeable Soil
Soil Science Society of America Journal, 1969Abstract Under limited water (preplant irrigation only), profile modification of Pullman silty clay loam to depths of 90 and 150 cm increased grain sorghum ( Sorghum vulgare , Pers.) yields by 66.2 and 80.1%, respectively, over a 3‐year period.
H. V. Eck, H. M. Taylor
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Model of resonance absorption with profile modification
The Physics of Fluids, 1982A capacitor model for resonance absorption in a weakly driven, convective regime is presented. The steepening of the plasma density profile and the amplitude of the resonantly generated wave are self-consistently determined.
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Transcriptome-Wide RNA Modification Profiling
2014Post-transcriptional RNA modifications provide new structural and functional features to modified RNA molecules. Extensive research in the past has resulted in isolation of over 100 distinct nucleotide modifications from different organisms and in different RNA species.
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Subscriber Profile Extraction and Modification via Diameter Interconnection
2017The interconnection network (IPX) connects telecommunication networks with each other. The IPX network enables features like roaming and data access while traveling. Designed as a closed network it is now opening up and unauthorized entities now misuse the IPX network for their purposes. The majority of the IPX still runs the Signaling System No.
Silke Holtmanns, Yoan Miche, Ian Oliver
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The Influence of Profile Modifications on Root Stress
2009A method for analyzing spur gear meshing is presented and applied. Analyzing the results of an example, it is shown that the path of contact and, in particular, the lowest (LPSTC) and the highest (HPSTC) single tooth contact points highly depend on profile modification amount and applied load.
Yonatan A. Tesfahunegn +2 more
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Profile Modification in Horizontal Slotted Liners
Journal of Petroleum Technology, 1997This article is a synopsis of paper SPE 38832, "Novel Approaches to Profile Modification in Horizontal Slotted Liners at Prudhoe Bay," by A. Bond, SPE, and C. Blount, SPE, Arco Alaska; S. Davies, SPE, Schlumberger Cambridge Research Ltd.; R. Keese, SPE, Schlumberger Dowell Inc.; Q. Lai, SPE, Arco E&P Technology Inc.; and K.
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