Results 91 to 100 of about 8,749,731 (254)
Grain boundary oxidation and fatigue crack growth at elevated temperatures [PDF]
Fatigue crack growth rate at elevated temperatures can be accelerated by grain boundary oxidation. Grain boundary oxidation kinetics and the statistical distribution of grain boundary oxide penetration depth were studied.
Liu, H. W., Oshida, Y.
core +1 more source
Adding calcium improves lithium ferrite core [PDF]
, 1969 Adding calcium increases uniformity of grain growth over a wide range of sintering temperatures and reduces porosity within the grain. Ferrite cores containing calcium have square hysteresis loops and high curie temperatures, making them useful in ...
Lessoff, H.
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MetalsIn this study, the ProCast software (version 2014) incorporating the CAFE model is applied to conduct numerical simulation analysis of the directional solidification process of titanium–aluminium alloy cylindrical rods at varying withdraw rates ...
Feng Li +6 more
doaj +1 more source
Combination of different methods for direct control of Vicia hirsuta in winter wheat [PDF]
, 2005 Combinations of three different direct methods for controlling Vicia hirsuta (kainite application, flame weeding and harrowing) were investigated in field experiments. They were based on different strategies at early growth stages of V.
Koepke, Ulrich, Lukashyk, Pavel
core
Accretion Disks Around Young Objects. III. Grain Growth
, 2001 We present detailed models of irradiated T Tauri disks including dust grain growth with power-law size distributions. The models assume complete mixing between dust and gas and solve for the vertical disk structure self-consistentlyincluding the heating ...
Calvet N. +7 more
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Growth response to temperature of two maize (Zea mays L.) hybrids with differing levels of cold tolerance : a thesis presented in partial fulfillment of the requirements for the degree of Master of Agricultural Science in Plant Science (Seed Technology), Massey University [PDF]
, 1993 Low temperatures are a hazard to maize production especially in high altitude and high latitude areas (Eagles, 1979; Hardacre and Eagles, 1986) where it may cause substantial yield reductions through its accumulated effect on vegetative and reprodutive ...
Mukumbuta, Mwangala Stephen
core
Dust Evolution in Protoplanetary Disks
, 2014 (abridged) In the core accretion scenario for the formation of planetary rocky cores, the first step toward planet formation is the growth of dust grains into larger and larger aggregates and eventually planetesimals.
Andrews, Sean +10 more
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, 2010 Context. Grains in circumstellar disks are believed to grow by mutual collisions and subsequent sticking due to surface forces. Results of many fields of research involving circumstellar disks, such as radiative transfer calculations, disk chemistry ...
Birnstiel +49 more
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Engineering and Applied Science Research, 2022 This study investigated changes in the average grain size and hardness values of 253 MA austenitic stainless steel (ASS) and determined the grain growth kinetics as well as a hardness empirical model. A 35% multi-pass cold rolling process was employed to
Rana K. Melinia +3 more
doaj
The effects of surface finish and grain size on the strength of sintered silicon carbide [PDF]
The effects of surface treatment and microstructure, especially abnormal grain growth, on the strength of sintered SiC were studied. The surfaces of sintered SiC were treated with 400, 800 and 1200 grit diamond wheels.
Kim, C. H. +3 more
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