Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2017
Authors: Victor Georgievich Shmorgun, Roman Evgenyevich Novikov, Dmitriy V. Pronichev, Leonid Moiseevich Gurevich
Further reduction of aluminum is accompanied by a sharp increase of equivalent plastic strain at the time of achieving the maximum load.
Further reduction of aluminum is accompanied by a sharp increase of equivalent plastic strain at the time of achieving the maximum load.
A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures.
Online since: September 2014
Authors: Yong Chun Cheng, Ji Zhong Zhao, Yu Bo Jiao, Jing Lin Tao, Peng Zhang
size and content of the large mass, such as rocks, tree roots and so on, to avoid the large objects becoming obstacles to the construction of cement-soil; (2)to determine the naturally stable moisture content of soil, while the dosage of cement-soil keeps the same, the strength of cement-soil increases with the decreasing of moisture content; (3)to determine the organic content: a high content of organic matter in soil will hinder the hydration reaction of the cement, and affect the strength increasing of cement-soil, so we must find out the amount of the organic matter, determine its influence degree on the strength of cement-soil, and take the corresponding measure; (4) to determine the PH value and sulfate content of soil, if the PH value is low, lime can be used to have a balance, and the sulphate resistant cement or other admixture should be chosen when the sulfate is too much; (5)to carry out the physical property tests of soil, which can provide design conditions through the data
(4) Whereandare the design and allowable value of single pile’s vertical bearing capacity; and are the design and allowable value of pile foundation soil’s vertical bearing capacity; is the pile friction’s standard value of each soil layer; n, , are the number, each and total thickness of the soil layer; u and are the pile body’s perimeter and pile tip’s sectional area; is the 70.7 mm cube specimen’s compressive strength with standard curing indoor; S is the foundation settlement; is attached compression stress on bottom of foundation; is the compression modulus for the soil layer i under the bottom of foundation; and are the distances from the bottom of foundation to the undersurface of soil layer i and i-1; and are the average attached compression stress coefficients within the scope from the calculate point on bottom of foundation to soil layer i and i-1; is the area replacement ratio between the pile and the soil; β is the pile-soil capacity reduction
factor; is pile body’s strength reduction factor; is the empirical coefficient for settlement calculation.
Online since: June 2018
Authors: Lukas Kranz, Giovanni Alfieri, Lars Knoll, Vinoth Sundaramoorthy, Renato Amaral Minamisawa
SIMS data for samples after phosphorous implantation (black curve) and samples activated after implantation (red curve).
There is further improvement of Ohmic contact with increasing silicidation temperature, due to reduction in barrier height and recrystallization of Ni2Si phase.
Ohmic contacts at low annealing temperature is expected to be due to the increase in net carrier concentration and reduction in barrier height at the Ni2Si/SiC interface.
Online since: February 2018
Authors: G. Vinod, V. Thaddeus Basker, Manashkumar Bhadra, K.S. Narayanan
The variations in geometric tolerances can cause the reduction of load transfer to a level where the individual pin location is totally ineffective.
This data is compared with an empirical formula which contains Inverse Square of distance from slit.
Whereas load reduction is observed in the neighbouring pins before the load reaches the nominal value in subsequent pins.
Online since: August 2010
Authors: Joong Hee Lee, Nam Hoon Kim, Tapas Kuila, Md Elias Uddin, Gye Hyoung Yoo
Therefore, the chemical reduction of modified GO is very essential to get modified graphene based polymer nanocomposites.
It was then stirred for 24 h at RT followed by hydrazine reduction for another 24 h under refluxing condition.
XRD data indicates that the graphene layers are fully delaminated in the polymer composites.
Online since: August 2012
Authors: Cao Yang, Jia He, Liang Qi Gui, Ke Chen, Wei Guo, Qing Xia Li, Xiao Ping Gao
Signal rise time increases as the data rate reduces and via could no longer be considered electrically insignificant.
With the increased number of grounded vias, transmission attenuation decreases, due to the reduction of equivalent inductance signal via.
Transmission attenuation decreases with the increased number of grounded vias, due to the reduction of equivalent inductance signal via.
Online since: December 2012
Authors: Xiang Yang Li, Mei Qiong Xia, Jing Zhan, Yu Sheng, Fu Liang Jiang
Vibration reduction effect and law of pre-splitting crack were studied by some scholars through the site blasting test and vibration monitoring [1-3], Zhe Zhang studied the effect of pre-splitting crack width on damping vibration through numerical simulation [4], and Jianhua Hu studied the effect of blasting vibration on pre-splitting crack in filling-environment through ANSYS/LS-DYNA software [5].
In order to analyze scientifically, the data in project 7 are removed, the numerical simulation results of vibration peak varied with the pre-splitting crack length changing are shown in table 5, and the numerical simulation results of maximum tensile stress varied with pre-splitting crack length changing are shown in table 6.
Observation and Analysis of Vibration Reduction Effect of Pre-split Crack in Complicated Geologic Condition.
Online since: December 2014
Authors: Fu Qun Wang, Xin Tan, Ting Ting He
With simple and low concentration of chemicals added, slick water fracturing fluid has low viscosity and is made for friction reduction, not proppant transport.
The slick water fracturing fluid include water, 0.1% drag reduction agent, 0.2% clay stabilizer, 0.1% non-emulsifiers, and 0.01% bactericide .
Acknowledgements This work was financially supported by Sinopec Daylight Energy Ltd, the contribution of study data and the permission for publication are gratefully acknowledged.
Online since: May 2014
Authors: Bin Chen
For example , Aircraft Scheduled Maintenance Processing Management System in Ameco reduced heavy work of the production administrative personnel and the producing worker effectively ,set up a complete effective planning operation and management mode and provided effective and reliable first-hand data .
The ultimate goal of the research on aviation maintenance human error is to ensure flight safety and reduce operating cost .At present , the research on management and control of human error is developed mainly from two aspects: error reduction and error tolerance .
Error reduction proposes research on the reason of error directly to reduce the occurrence of human error from the roots ,such as improving the technical operation ability of maintenance personnel ,strengthening knowledge training of maintenance personnel and strengthening maintenance resource management .
Online since: September 2014
Authors: Emilia Florina Binchiciu, Victor Geantă, Carmen Florea, Tanasache Daniel Tihanov
Electrodes manufacturing process In order to obtain comparable data, authors used the experimental compositional recipe for the fabrication of SUDODUR CWT electrodes, Ø 4 mm, [6].
Conclusions Results obtained after research, conducted in Bata quarry and presented in this paper; provide potential beneficiaries the option of cost reduction for elements subjected to wear through abrasion under high pressure, it also raises the equipment performance by using this method at loading through welding of the frontal loader teeth with elements that are resistant to abrasion.
The cost reduction of elements subjected to wear by abrasion with high pressure is deduced from the significant price difference at purchase of the teeth designed for demanding applications and those destined for less demanding jobs.
Showing 15191 to 15200 of 40357 items