Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: February 2026
Authors: Ganesh S. Ingle, Shantanu Krishna
Case studies are shown that the use of seismic refraction method in different phases can produce an idealized result, reducing the number of boreholes (direct geotechnical system) and time frame. 2.
SRT Profile-01, Comparison between SRT lithological data and nearby executed borehole log data - BH No.- ABH-T-CM-IG-07 Profile number with nearby borehole SRT Lithological interpretation Borehole lithological interpretation SRT-01 CH. 0.0m to 115m (Nearby BH No.- ABH-T-CM-IG-07) Unconsolidated overburden material like sandy slit/ clay slit/ and sandy Silt or clays slit with gravels (Average depth (m) - Approx, 0.0mbgl to 9mbgl) Brownish, very stiff to hard, clayey Silt of low plasticity (Average depth (m) - Approx, 0.0mbgl to 9.5mbgl) Highly weathered to moderately weathered rock strata (Average depth (m) - Approx, 9.0mbgl to 23mbgl) Highly weathered, brownish grey, medium to coarse grained, moderately strong, QUARTZITE, shows very close spaced horizontal fractures, Joints are inclined in nature with slightly rough & highly weathered inner surface.
(Average depth (m) - Approx, 9.0mbgl to 24.5mbgl) Moderately weathered to slightly weathered or highly compacted rock strata (Average depth (m)- Approx, 23.0mbgl to 30mbgl) Completely weathered, Brownish, medium to coarse grained, moderately Weak, QUARTZITE.
Online since: January 2004
Authors: T. Hansen
One cannot go for infinitely short slices and high cycling frequencies, not only for electronically limitations and for the problem to provide good synchronisation over a huge number of cycles without any deviation, e.g., due to fatigue phenomena.
The rates of transformation of spherical grains of deuterated ice Ih to gas hydrate were measured time-resolved.
The first stage lasts several hours and consists of the formation of a porous hydrate film covering the spherical ice Ih grains; the following stage shows lower reaction rates limited by the clathrate growth process and not by the gas transport to the ice/hydrate interface via the submicron pores.
After a sufficient number of cycle repetitions so that all cases of this table are filled with sufficient count-rate, monitor- (or time) normalisation can take place and the data of a detector bank can be presented as TOF patterns varying with time (relative to the synchronisation signal).
Online since: July 2006
Authors: X.-G. Chen
They may arise from two main sources: Tundish Mold Transition plate Feeding tube Start block Liquid metal from the trough Possible blocked zone1.1 Inclusions existed in the liquid 1.2 Intermetallic phases present in the liquid There are always a number of non-metallic inclusions existing and suspended in the liquid aluminum.
Typically, they are TiB2 or TiC particles by grain refining addition, chloride salt particles by furnace and in-line degassing, loose refractory powders at the trough and tundish, eroded coating and refractory particles from trough and tundish walls.
The best way to avoid this kind of blocking (1.1) is to minimize the number of inclusions that pass through the feeding tubes.
As an example, it is common practice to add Ti as an alloying element to Al-Si foundry alloys to increase the grain refining effect.
Online since: March 2007
Authors: Fumiyoshi Minami, Shusaku Takagi, Satoshi Terasaki, Tadanobu Inoue, Kaneaki Tsuzaki
(1) It is considered that micro cracks correspond to cementite on prior austenite grain boundaries.
The prior austenite grain size was 17mm.
(Unit: mm) Numbers in the table indicate stress concentration factors.
(Unit: mm) Numbers in the table indicate stress concentration factors.
Online since: May 2013
Authors: Silvia E. Jacobo, P.G. Bercoff
It is widely accepted that calcination temperature is closely related to grain size, secondary phases, site occupancy, magnetocrystalline anisotropy and coercivity.
While low temperatures may prevent grain growth and keep high coercivities, a fully crystalline structure with optimal sites’ occupancy may not be possible to achieve.
The intensity of each sextet is directly proportional to the number of iron atoms in each site, thus giving an estimate of the occupancy percentage in the corresponding site.
The numbers between parenthesis indicate the theoretical value of occupation for the corresponding site.
Online since: January 2021
Authors: A.A. Saprikin, Yurii P. Sharkeev, Egor Ibragimov, Natalya Saprykina, Margarita Khimich
A small number of particles with original forms and dimensions are observed, however, a pattern of components on the surface is far from being uniform.
Displacing reflexes of the main epsilon phase along the axis of angles indicate a change in lattice parameters, what, it its turn, is a consequence of high inner stresses and forming solid solutions based on a hexagonal crystal lattice for a number of cobalt atoms are replaced by atoms of chromium and molybdenum.
It is a well-known fact that the formation of a double-phase epsilon gamma state and a fine grain size improves the deformation behavior of an alloy [23].
Ping Huang, Lopez Strain induced ε-martensite in a Co–Cr–Mo alloy: grain size effects, Materials Letters, 39, 1999, pp. 244-248.
Online since: September 2024
Authors: Houssame Limami, Ghizlane El Hajoui, Imad Manssouri, Tajeddine Manssouri, Hassane Sahbi
They found that for single-layer walls, these indicators are mainly influenced by the dimensionless thickness and dynamic Biot number.
The study highlights significant reductions in the decrement factor with increasing thickness and Biot number.
Heavy Metal Testing Standards Concentration Maximum permissible standards limit as per NM 03.7.233 standards [26] Copper (Cu) Zinc (Zn) Cadmium (Cd) Lead (Pb) Arsenic (As) Nickel (Ni) Mercury (Hg) NM ISO 11047-2004 [21] 0.371 mg/l 24.653 mg/l 0.002 mg/l 0.005 mg/l 0.005 mg/l 0.950 mg/l 0.016 mg/l 28.00 mg/l 105.00 mg/l 0.70 mg/l 35.00 mg/l 0.15 mg/l 21.00 mg/l 0.14 mg/l The sludge collected from the wastewater treatment plant was initially in medium-sized grains, ranging from 5 mm to 15 mm.
These grains were first cleaned of contaminants such as small stones, lumps, and some decomposed leaves, then sieved through a 1 μm filter.
Online since: March 2020
Authors: S.D. Polischuk, Yu.A. Stekolnikov, D.G. Churilov, I.A. Uspeunskiy, I.A. Yukhin, I.S. Arapov, N.V. Byshov, S.N. Borychev
The properties of the system are evaluated by a number of factors: the time of the transition process, forcing, attenuation, and the quality factor.
In the first stage, the number of electrons is 2 times more than in the second one.
The number of electrons participating in the reduction process of CrO42- ion reduction determined by micro-coulometric method, is 6, in this case the recovery mechanism of CrO42- ion depends on acidity as follows (scheme): Cr(VI)2eCr(IV)eCr(III) Cr(VI)4eCr(II)2eCr (2 mМ CrO3 pH 3.5-5.5; 5 mМ CrO3 pH 8.0) (5 mМ CrO3 pH 3.5-5.5) Total number of electrons = 3 Total number of electrons = 6 Thus, the reduction of CrO42- ions to a metal is complex, varying with acidity.
The minimum transient time and high current efficiency correspond to mixing of the electrolyte with the Reynolds number above 36,000.
Bersan, Grain storage and processing 7 (2010) 55-56
Online since: July 2013
Authors: S. Alkahtani, Mahmoud M. Tash
Hardness measurements were carried out on specimens prepared from 356 and 319 alloys in the as-cast and heat-treated conditions, using different combinations of grain refining, Sr-modification, and alloying additions.
Also, TiB2 refines grain size and reduces pore size, which improves the mechanical properties. [[] S.
After the parameters and the values input into the software (MINITAB 14), a DOE model will be automatically generated with specific number of runs coupled with specific parametric settings.
Online since: July 2025
Authors: Farida A. Selim
Extended defects include line defects such as edge and screw dislocations, surface defects such as grain and twin boundaries, and volume defects such as voids, cracks, and precipitates.
Schottky defects occur when the same number of cations and anions are missing from their normal positions forming cation and anion vacancies in equal number.
TEM directly images defects in materials [52], it can only detect nanometer defect size as conventional high resolution transmission electron microscopy (HRTEM) cannot see single vacancies or small vacancy clusters; it is a perfect tool for nanovoids and can image dislocations and grain boundaries with atomic resolution [53-55].
Würschum, Positron trapping model for point defects and grain boundaries in polycrystalline materials, Physical Review B—Condensed Matter and Materials Physics. 79 (2009) 184103
Walker, Production and recovery of electron-induced radiation damage in a number of metals, Physical Review. 127 (1962) 485
Showing 24541 to 24550 of 28673 items