Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2019
Authors: Yong Mao, Kai Xiong, Shun Meng Zhang, Ying Jie Sun
(9)
In these formulas, h indexes Planck’s constants, k is Boltzmann’s constants, NA indexes Avogadro’s number, ρ is the density, M stands for the mass of unit cell, n is the number of atoms in the unit cell, νm is the averaged elastic wave velocity, νl and νt point to the longitudinal sound velocity and transverse sound velocity.
[4] FuZhi Dai, Yanchun Zhou, Wei Sun, Segregation of solute atoms (Y, Nb, Ta, Mo and W) in ZrB2 grain boundaries and their effects on grain boundary strengths: A first-principles investigation.
[4] FuZhi Dai, Yanchun Zhou, Wei Sun, Segregation of solute atoms (Y, Nb, Ta, Mo and W) in ZrB2 grain boundaries and their effects on grain boundary strengths: A first-principles investigation.
Online since: May 2012
Authors: Hai Fan, Hai Dong Wu, Mei Li Zhou, Ya Zhang, Tong Lou Ding, Bao Shan Wang
As a result China neither allows cultivating biomass energy plants in crop lands, nor translating crop grains into bio-fuels.
Furthermore, the number of bacteria, salt-tolerant bacteria, and actinomycetes all increased with the application of fertilizers (treatment IV=treatment III>treatment II> control), but the number of salt-tolerant actinomycetes did not change significantly.
Additional fertilizer can be applied at the shooting stage and booting stage, while leaf surface fertilizer can be applied at the grain filling stage to increase sorghum juice Brix.
Furthermore, the number of bacteria, salt-tolerant bacteria, and actinomycetes all increased with the application of fertilizers (treatment IV=treatment III>treatment II> control), but the number of salt-tolerant actinomycetes did not change significantly.
Additional fertilizer can be applied at the shooting stage and booting stage, while leaf surface fertilizer can be applied at the grain filling stage to increase sorghum juice Brix.
Online since: July 2011
Authors: Lei Wang, Dong Bai Sun, Zhi Qiang Hua, Xue Tao Yuan, Song Lin Chen
It may lead to settle down and make available smaller number of nano-particles adjacent to the electrode surface for incorporation.
Amorphous alloys offer better corrosion resistance than equivalent polycrystalline materials because of the freedom from grain or grain boundaries and because of the glassy film, which formed on and passivate their surfaces.
The main causes for deterioration of corrosion resistance of NiP-Al2O3 composite coating when the concentration of nano-particles increased from 4 to 10 g/L are: ① with the increase of Al2O3 particles in the composite coating, interface between metal matrix and particles enlarged, the discontinuous interface surrounded particles have interspace, the agglomerates of particles leaded to uneven surface, and the particles had not been effectively covered by NiP alloy; ②a large amount of added Al2O3 nano-particles wedged in and fragmented the original integrated and uniform coating and passive film, enlarging the interface area of coating, increasing interface energy and increasing the number of corrosion microcell.
Amorphous alloys offer better corrosion resistance than equivalent polycrystalline materials because of the freedom from grain or grain boundaries and because of the glassy film, which formed on and passivate their surfaces.
The main causes for deterioration of corrosion resistance of NiP-Al2O3 composite coating when the concentration of nano-particles increased from 4 to 10 g/L are: ① with the increase of Al2O3 particles in the composite coating, interface between metal matrix and particles enlarged, the discontinuous interface surrounded particles have interspace, the agglomerates of particles leaded to uneven surface, and the particles had not been effectively covered by NiP alloy; ②a large amount of added Al2O3 nano-particles wedged in and fragmented the original integrated and uniform coating and passive film, enlarging the interface area of coating, increasing interface energy and increasing the number of corrosion microcell.
Online since: August 2023
Authors: Ikram El Abbassi, Driss Taoukil, Mohamed Ouakarrouch, El Hadj Kadri, Mohammed lhassane Lahlaouti, Abdelmajid El Bouardi, Oussama Zine
This number continues to grow as the population increases.
This culture appears as the only viable economic opportunity, bringing higher yields compared to the cultivation of legal alternatives such as olives (4-14 times less lucrative) or grains (12-46 times less lucrative) [4].
According to a study by Glé et al. [22], fiber and grain size also affect the acoustic absorption coefficient.
Indeed, this decrease was explained by reducing the number of pores and, consequently, the air volume in the composite materials [44], [45].
For the model of Degiovanni, it considered almost the same conditions as Degiovanni & Laurent's model, but it remains a little accurate since it used only a very reduced number of points of the thermogram.
This culture appears as the only viable economic opportunity, bringing higher yields compared to the cultivation of legal alternatives such as olives (4-14 times less lucrative) or grains (12-46 times less lucrative) [4].
According to a study by Glé et al. [22], fiber and grain size also affect the acoustic absorption coefficient.
Indeed, this decrease was explained by reducing the number of pores and, consequently, the air volume in the composite materials [44], [45].
For the model of Degiovanni, it considered almost the same conditions as Degiovanni & Laurent's model, but it remains a little accurate since it used only a very reduced number of points of the thermogram.
Online since: April 2009
Authors: David J. Young, M.A.A. Motin, J. Zhang
The precipitate distributions are consistent with
such a process: the precipitate-free zones beneath the scale-metal interfaces and surrounding grain
boundaries reflect preferred nucleation at these internal surfaces.
Carbon dissolves in and supersaturates the metal, leading to graphite precipitation at or immediately beneath the surface and at interior grain boundaries.
Assuming the effect of copper is to reduce catalytic activity by replacing nickel, and that each catalytic site involves a number of near neighbours nickel atoms [31-33], then the number of atoms is given by n.
Carbon dissolves in and supersaturates the metal, leading to graphite precipitation at or immediately beneath the surface and at interior grain boundaries.
Assuming the effect of copper is to reduce catalytic activity by replacing nickel, and that each catalytic site involves a number of near neighbours nickel atoms [31-33], then the number of atoms is given by n.
Online since: July 2022
Authors: Stefan Carosella, Peter Middendorf, Florian Helber
It was a white, solid epoxy resin powder based on Bisphenol-A with a grain size between 90 – 125 µm and an activation temperature of 102±5 °C.
It is a solid, Bisphenol-A based, high molecular weight epoxy resin and comes as a white powder with a grain size between 160 – 200 µm.
For each test series a minimum number of five samples was tested.
For E5390 an insufficient number of valid samples has been measured, so it cannot be considered in the evaluation.
It is a solid, Bisphenol-A based, high molecular weight epoxy resin and comes as a white powder with a grain size between 160 – 200 µm.
For each test series a minimum number of five samples was tested.
For E5390 an insufficient number of valid samples has been measured, so it cannot be considered in the evaluation.
Online since: February 2009
Authors: Ricardo Gómez, Vicente Rodríguez-González, F.M. Morán-Pineda, S. Castillo, R. Zanella
The average particle diameter (ds) was calculated by using the following formula: ds
=∑nidi/∑ni, where ni is the number of particles of diameter di.
The mean particle size of the 80 82 84 86 88 90 92 94 Binding Energy (eV) Intensity Au 4f 5/2 Au 4f 7/2 Auº Auº Au2O3 Au2O3 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Au wt (%) Au/TiO 2 -Al 2 O 3 Au/P25 Au/TiO 2 Au/TiO 2 -In 2 O 3 45 50 55 60 65 1 2 3 4 Analysis number Ti wt (%) Au/TiO 2 -Al 2 O 3 Au/P25 Au/TiO 2 Au/TiO 2 -In 2 O 3 Figure 4.
Band-gap energy, mean grain size and mean gold particle size for the gold supported semiconductors.
Material Eg (eV) Plasmon Absorption (nm) Mean grain size (nm) Mean gold particle size (nm) P25 3.10 -- - - TiO2 3.13 -- - - TiO2-In2O3 3.5 -- - - TiO2-Al2O3 3.23 -- - - Au1/P25 2.68 564 31 3.8 Au1/TiO2 2.74 546 20 4.4 Au1/TiO2-In2O3 2.83 - 12 2.4 Au1/TiO2-Al2O3 3.10 - 10 2.7 gold nanoparticles which were obtained from the HRTEM micrographs is reported in Table 2.
The mean particle size of the 80 82 84 86 88 90 92 94 Binding Energy (eV) Intensity Au 4f 5/2 Au 4f 7/2 Auº Auº Au2O3 Au2O3 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Au wt (%) Au/TiO 2 -Al 2 O 3 Au/P25 Au/TiO 2 Au/TiO 2 -In 2 O 3 45 50 55 60 65 1 2 3 4 Analysis number Ti wt (%) Au/TiO 2 -Al 2 O 3 Au/P25 Au/TiO 2 Au/TiO 2 -In 2 O 3 Figure 4.
Band-gap energy, mean grain size and mean gold particle size for the gold supported semiconductors.
Material Eg (eV) Plasmon Absorption (nm) Mean grain size (nm) Mean gold particle size (nm) P25 3.10 -- - - TiO2 3.13 -- - - TiO2-In2O3 3.5 -- - - TiO2-Al2O3 3.23 -- - - Au1/P25 2.68 564 31 3.8 Au1/TiO2 2.74 546 20 4.4 Au1/TiO2-In2O3 2.83 - 12 2.4 Au1/TiO2-Al2O3 3.10 - 10 2.7 gold nanoparticles which were obtained from the HRTEM micrographs is reported in Table 2.
Online since: April 2025
Authors: A. Shirley Stevany Faryl, K. Rajeshwaran, G. Sekar, Joghee Prasad
Literature reviews on multiplier designs examines a number of multiplication methods, including the shift and add multiplier, array multiplier, row/column bypassing multiplier, Dadda multiplier, and braun multiplier.
Circuits can be pipelined at an extremely fine-grain level by balancing the intrinsic RC delays of the combinational logic units, which synchronizes internal computations. [11] To obtain better power and performance improvements, the wave pipeline system is modified into hybrid pipelining architecture which uses intermediate registers partially.
Circuits can be pipelined at an extremely fine-grain level by balancing the intrinsic RC delays of the combinational logic units, which synchronizes internal computations [12].
In comparison to a normal pipeline, the pipelined multiplier's implementation requires a considerably fewer number of flip-flops due to its low latency.
Circuits can be pipelined at an extremely fine-grain level by balancing the intrinsic RC delays of the combinational logic units, which synchronizes internal computations. [11] To obtain better power and performance improvements, the wave pipeline system is modified into hybrid pipelining architecture which uses intermediate registers partially.
Circuits can be pipelined at an extremely fine-grain level by balancing the intrinsic RC delays of the combinational logic units, which synchronizes internal computations [12].
In comparison to a normal pipeline, the pipelined multiplier's implementation requires a considerably fewer number of flip-flops due to its low latency.
Online since: February 2020
Authors: L.G. Marques, Manoel Marcelo Prado, Raí M. de Oliveira, Keyse S. Andrade
IR radiation is then recommended for drying grains in a single thin layer [4,7].
Spite of large number of works dealing with combined infrared and hot-air drying, few studies [7] are devoted to provide information on the use of IR radiation assisted by non-heated air convection, what could contribute to save energy and improve product quality.
Thus, the total number of nineteen experimental runs were required, with duplicate in the maximum and minimum variables levels and triplicate in the center point.
The finding obtained in this work is not in agreement with the finding of Brandão et al. [7] who reported a reduction in Deff-values with an increase of the non-heated air velocity in the hybrid drying of pollen grains.
Spite of large number of works dealing with combined infrared and hot-air drying, few studies [7] are devoted to provide information on the use of IR radiation assisted by non-heated air convection, what could contribute to save energy and improve product quality.
Thus, the total number of nineteen experimental runs were required, with duplicate in the maximum and minimum variables levels and triplicate in the center point.
The finding obtained in this work is not in agreement with the finding of Brandão et al. [7] who reported a reduction in Deff-values with an increase of the non-heated air velocity in the hybrid drying of pollen grains.
Online since: December 2009
Authors: C.C. Tang, J.C. Shih, S.S. Chi, Shen Yung Lin
A hardfacing with
large carbide grains showed lower cutting temperatures and exhibited lower increase rate with
cutting speed and feed rate.
The porosity, ductility and the bonding strength of the grains in the tool, apart from its thermal conductivity appear to have great influences on the fracture resistance of the tool.
These nodes evaluate the limited number of inputs by a polynomial function and generate an output to serve as an input to subsequent nodes of the next layer.
The PSE is composed of two terms; that is: PSE=FSE+KP (2) (2) where FSE is the average square error of the network for fitting the training data and KP is the complex penalty of the network, shown as the following equation: NK CPMK p p 2 2 (3) where CPM is the complex penalty multiplier, K is a coefficient of the network, N is the number of training data to be used and P 2 is a prior estimate of the model error variance. 4.
The porosity, ductility and the bonding strength of the grains in the tool, apart from its thermal conductivity appear to have great influences on the fracture resistance of the tool.
These nodes evaluate the limited number of inputs by a polynomial function and generate an output to serve as an input to subsequent nodes of the next layer.
The PSE is composed of two terms; that is: PSE=FSE+KP (2) (2) where FSE is the average square error of the network for fitting the training data and KP is the complex penalty of the network, shown as the following equation: NK CPMK p p 2 2 (3) where CPM is the complex penalty multiplier, K is a coefficient of the network, N is the number of training data to be used and P 2 is a prior estimate of the model error variance. 4.