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Online since: July 2020
Authors: Duha S. Ahmed, Tarik T. Issa, Sadeer M. Majeed
Powder from, Tin, Bismuth Zinc and Cooper of (99.999) purity, have (120-140) µm grain size were used.
The numerical numbers are , 1.Sn-Bi, ,2.Sn-Zn .
The numerical numbers are, 1.
Online since: July 2013
Authors: Jian Bin Zhang, Fen Ran, Lei Niu, Jia Wang, Jian Lin Xu, Li Hui Zhang, Xiao Bin Yan
Some researches show that high cathode over potential is not only the prerequisites of promoting nucleation and inhibiting grain growth, but a key conditions of obtaining nano-crystalline.
When current density is overlarge, a large number of antimony particles will gather on the cathode and can’t be effectively coated by surface dispersants, resulting in the increasing of the particle size of antimony nanoparticles.
) (012) (104) (110) Fig.6 TEM micrographies of antimony nanoparticles The effect of surface dispersants, current density, electrolysis time on the microstructure, morphology and particle size of antimony nanoparticles is studied basing on a large number of experiments in this paper.
Online since: June 2012
Authors: Zhao Lu Xue, Hao Ran Lu, Chang Lei Niu, Shao Hong Wang, Zhao Xia Hou, Hao Wang, Cai Wang
A large number of mutual connected crack appear from the C1# sheet; The C2# sheet has a good flexibility and lubricious surface while C3# sample has good film-forming performance, but has an un-even surfaces and it is difficult to demould.
It is shown that when sintered at 950°C, large number of µ-cordierite crystal phase and few amount of α-cordierite crystal phase are separated out of the cordierite sintered compact.
When the sinter temperature is 1000°C, viscous flow of liquid phase promotes the bond between particles polymerization, compel gas to remove along with the grain boundary and improve the density of cordierite sample.
Online since: March 2015
Authors: Da Wei Luo, Jun Feng Li, Jian Ping Long
When the concentration of carbon exceeds its solubility limit in silicon, it will precipitate to form silicon carbide (SiC) particles, which can cause severe ohmic shunts in solar cells and result in nucleation of new grains in silicon ingots [2].The boron–oxygen complexes acting as recombination centers of photo carriers cause a serious problem of light-induced degradation in solar cells [3].Oxygen precipitation is known to act as intrinsic gettering sites for impurities and to affect the mechanical strength of the wafer [4].Carbon, oxygen and SiC particles in a solidified silicon ingot can cause significant deterioration of the conversion efficiency of solar cells.
Ingot and ingot number.
Each of the mc-Si blocks is wire-sawed into a number of mc-Si wafers of certain thickness such as 200um.
Online since: October 2012
Authors: Sruthi Kattamanchi, Singaravelu Ganesan, Rathinam Vasudevan, Ramasamy Jayavel
A number of reports were published in the BaCeO3 (Barium Cerates), but there are lot of challenges in studying the conduction properties.
Yttria is used as a promising protonic rare earth ion to enhance the ionic conductivity of the matrix due to their high ionic transporting number [2].
The increased densification may be due to the finer grain size distribution of particles with reduced porosity, which agreed with the SEM results.
Online since: August 2014
Authors: Ying Wei, Shao Guang Huang, Qi Jia, Rui Min
Zero-Crossing Rate In a voice frame, the number of signal waves crossing zero level is defined as Zero-Crossing Rate (ZCR).
These vectors are arranged as a projection matrix giving a number for each of them in order.
Coggins and Jose Principe, Detection and Classification of Insect Sounds in a Grain Silo using a Neural Network [4] Nellenbach C.
Online since: September 2015
Authors: Gia Thinh Bui, Yi Ze Chen, Da-Chen Pang
By designing cell membrane in a ratio one to two, the minority transmission/ majority reception mode reduced energy loss proportionally to the number of cells.
The higher output signals may result as the CMUT design is in proportionality to the cell number.
Hilton, Image surface roughness using correlated speckle grain pairs, Report No.
Online since: August 2011
Authors: Ping Luo, Di Hu Chen, Zhan Yun Huang
Aydil [17], who believe that FTO film on glass are highly textured with grains aligned preferentially in the (002) direction.
The result showed that the number of platelets adhering on as-prepared samples is obviously smaller than that on PU and glass (Fig. 6).
In addition, the statistical result revealed that the number of adhering platelets regularly increases with the decreasing of the nanorod diameter, indicating the scale of nanomorphology surface is an important factor to affect the blood compatibility.
Online since: February 2022
Authors: Oleg V. Kudryakov, Valery N. Varavka, Igor V. Kolesnikov
As a result, such a defect acquires a characteristic morphology: in the body of the coating, it has the shape of a cylinder with a small radius and an axis perpendicular to the surface of the coating, and its conical part protrudes above the surface of the coating - the "head" (shown by arrows in Fig. 1a and denoted by number 1 in Fig. 1b).
Therefore, the cavity (niche) that remains at the site of the budded defect was called by us extrusion (shown in 3D projection in Fig. 2, and also indicated by number 2 in Fig. 1b).
Partially healed extrusion is indicated by number 3 in Fig. 1b.
The value of DGV also includes the volumetric energy of each forming spiral step, the presence of which is taken into account by a factor d – the number of spiral (helicoid) turns, i.e. the number complete circular growth steps in the volume of the defect.
Since the defect and the coating have the same crystal lattice, the boundary between them is the boundary of mismatched crystallographic planes and is equivalent to a high-angle boundary - the grain boundary.
Online since: June 2012
Authors: Toshiki Hirogaki, Keiji Ogawa, Eiichhi Aoyama, Kuniyoshi Obata
Introduction Printed Wiring Boards (PWBs) are getting denser, and the number of circuit layers is increasing.
In the manufacturing, the number of processing holes is enormous.
Initial angle the scattering spatter Fig.4 Distance vs. grain diameter of spatter Fig.5 Photograph of the laser drilling A differential equation of the formula was performed using the Euler numerical calculation.
When the Reynolds number Re = 0-10, observation by SEM shows that the particle size is about 10 mm.
AFRP organic substrate is made ​​by combining a number of monomers.
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