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Online since: April 2020
Authors: Evgeniy V. Ageev, Rashit A. Latypov, Evgeniy P. Novikov
The microscope allows to obtain images of various objects with a magnification exceeding 100,000 times, with a large number of decomposition elements (pixels).
Thus, each atom has a well-defined finite number of levels, between which only certain types of transitions are possible, the characteristic X-ray radiation provides a discrete line spectrum.
X-ray microanalysis has failed to identify light elements with a sequence number less than 4 in the composition of the alloy.
Tikhomirov, Grain-size composition, shape and morphology study of titanium powder particles produced by electroerosion dispersion, International Conference on Mechanical Engineering, Automation and Control Systems (MEACS), Tomsk. (2015) 1-4
Thus, each atom has a well-defined finite number of levels, between which only certain types of transitions are possible, the characteristic X-ray radiation provides a discrete line spectrum.
X-ray microanalysis has failed to identify light elements with a sequence number less than 4 in the composition of the alloy.
Tikhomirov, Grain-size composition, shape and morphology study of titanium powder particles produced by electroerosion dispersion, International Conference on Mechanical Engineering, Automation and Control Systems (MEACS), Tomsk. (2015) 1-4
Online since: January 2014
Authors: Bao Guo Sun, Ming Quan Huang, Jing Lin Zhang, Ji Hong Wu, Yu Yu Zhang, Xiao Meng Lan
Unlike fruit vinegars in the western, grain vinegars are common in China.
Table 2 Sensors used and their main application targets in PEN 3 Number in array Sensor name General descriptions Reference S1 W1C Aromatic compounds Toluene,10 ppm S2 W5S Very sensitive to nitrogen oxides NO2, 1 ppm S3 W3C Ammonia, used as sensor for aromatic compounds Benzene,10 ppm S4 W6S Mainly hydrogen, selectively (breath gases) H2,100 ppb S5 W5C Alkenes, aromatic compounds, less polar compounds Propane,1 ppm S6 W1S Sensitive to methane broad range CH3,100 ppm S7 W1W Reacts on sulfur compounds H2S,1 ppm S8 W2S Detects alcohols, partially aromatic compounds CO,100 ppm S9 W2W Aromatics compounds, sulfur organic compounds H2S,1 ppm S10 W3S Reacts on high concentrations>100 ppm CH3,100 ppm Each vinegar sample (5diluted times) was placed into an airtight glass jar (150 mL).
Each sample was performed in triplicate, so as to verify the signal stability and get a sufficient number of data, and chose 5 points to analysis from the data detected between 66 s to 70 s.
The results of LD also could provide the foundation for further studies of optimize the number of sensors,for example, those sensors with low contributions to the discrimination could be got rid of.
Table 2 Sensors used and their main application targets in PEN 3 Number in array Sensor name General descriptions Reference S1 W1C Aromatic compounds Toluene,10 ppm S2 W5S Very sensitive to nitrogen oxides NO2, 1 ppm S3 W3C Ammonia, used as sensor for aromatic compounds Benzene,10 ppm S4 W6S Mainly hydrogen, selectively (breath gases) H2,100 ppb S5 W5C Alkenes, aromatic compounds, less polar compounds Propane,1 ppm S6 W1S Sensitive to methane broad range CH3,100 ppm S7 W1W Reacts on sulfur compounds H2S,1 ppm S8 W2S Detects alcohols, partially aromatic compounds CO,100 ppm S9 W2W Aromatics compounds, sulfur organic compounds H2S,1 ppm S10 W3S Reacts on high concentrations>100 ppm CH3,100 ppm Each vinegar sample (5diluted times) was placed into an airtight glass jar (150 mL).
Each sample was performed in triplicate, so as to verify the signal stability and get a sufficient number of data, and chose 5 points to analysis from the data detected between 66 s to 70 s.
The results of LD also could provide the foundation for further studies of optimize the number of sensors,for example, those sensors with low contributions to the discrimination could be got rid of.
Online since: February 2014
Authors: Akhmad Herman Yuwono, Risa Suryana, Nafi'ah Ardhani, Agus Supriyanto
The crystallite size was enlarged with increasing Rw; in other words, the number of H2O bonds in the synthesis of TiO2 increased as the number of Ti-OH bonds increased as a consequence of reacting between TTIP and H2O.
The crystallite size increased as Rw increased due to number of Ti-OH bonds as the nuclei of TiO2 much more formed.
Mohammed., Correlation between thickness, grain size and optical band gap of CdI2 film, Eng. and Tech.
The crystallite size increased as Rw increased due to number of Ti-OH bonds as the nuclei of TiO2 much more formed.
Mohammed., Correlation between thickness, grain size and optical band gap of CdI2 film, Eng. and Tech.
Online since: July 2011
Authors: Xian Liang Zhou, Yong Tao Xu, Zhi Guo Ye, Ai Hua Zou, Xiao Zhen Hua, Wen Ting Guo
As we know, the temperature 1200°C will make a dramatic grain growth of 1Cr18Ni9Ti.
Table 3(a) Results of shearing strength experiments Number Temperature Strength(MPa) Average(MPa) Russia standard 1# 20℃ 503 527 441.0~529.2 MPa 2# 551 3# 200℃ 545 483 421.4~441.0 MPa 4# 421 5# 400℃ 390 400 326.6~392.0 MPa 6# 410 7# 600℃ 292 261.5 205.8~323.4 MPa 8# 231 9# 700℃ 179 202 186.2~215.6 MPa 10# 225 Table 3(b) Results of stress-rupture tests Number Stress(MPa) Temperature(℃) Time(h) Russia standard 11# 78 700 145broke ≥100h 12# 150worked well Table 3(c) Results of low cycle fatigue tests Number Stress(MPa) Temperature(℃) Cycles Russia standard 13# 137.2 20 >1.01×107 >107 14# 15# 98 700 >1.01×107 16# Conclusions (1) The filler metal bmp7 shows an ideal high temperature behavior when brazing 1Cr18Ni9Ti stainless steel.
Table 3(a) Results of shearing strength experiments Number Temperature Strength(MPa) Average(MPa) Russia standard 1# 20℃ 503 527 441.0~529.2 MPa 2# 551 3# 200℃ 545 483 421.4~441.0 MPa 4# 421 5# 400℃ 390 400 326.6~392.0 MPa 6# 410 7# 600℃ 292 261.5 205.8~323.4 MPa 8# 231 9# 700℃ 179 202 186.2~215.6 MPa 10# 225 Table 3(b) Results of stress-rupture tests Number Stress(MPa) Temperature(℃) Time(h) Russia standard 11# 78 700 145broke ≥100h 12# 150worked well Table 3(c) Results of low cycle fatigue tests Number Stress(MPa) Temperature(℃) Cycles Russia standard 13# 137.2 20 >1.01×107 >107 14# 15# 98 700 >1.01×107 16# Conclusions (1) The filler metal bmp7 shows an ideal high temperature behavior when brazing 1Cr18Ni9Ti stainless steel.
Online since: August 2013
Authors: Na He, Jing Zhang, Yao Jing Wang, Zhong Yang Wang
Acute Cu toxicity can result in a number of pathologies, and in severe cases, death.
Plants copper poisoning main symptom is: Root elongation was disrupted, Browning deformity, "Chicken feet root", Leaf yellowing and brown spots, to inhibit the germination of seeds and grain development[16,17].
Usually copper into the body mainly accumulates in the liver, once more than the level of treatment of the liver, could easily cause oxidative inactivation of the enzyme system, the damage of red blood cell, and leading to the denatured hemoglobin increasing; meanwhile copper combined with the hemoglobin can result in a large number of denaturing hemoglobin into the blood, eventually lead to hemolytic anemia.
In the endocrine system, the small number of patients may appear impotence and non-secreting pituitary adenoma, which perform for ofobesity, facial flushing and hypertension.
Plants copper poisoning main symptom is: Root elongation was disrupted, Browning deformity, "Chicken feet root", Leaf yellowing and brown spots, to inhibit the germination of seeds and grain development[16,17].
Usually copper into the body mainly accumulates in the liver, once more than the level of treatment of the liver, could easily cause oxidative inactivation of the enzyme system, the damage of red blood cell, and leading to the denatured hemoglobin increasing; meanwhile copper combined with the hemoglobin can result in a large number of denaturing hemoglobin into the blood, eventually lead to hemolytic anemia.
In the endocrine system, the small number of patients may appear impotence and non-secreting pituitary adenoma, which perform for ofobesity, facial flushing and hypertension.
Online since: July 2016
Authors: Shinichi Furusawa, Yohei Minami
In contrast, a low number of highly conductive potassium ionic conductors have been reported [6].
The trajectory of the plotted data showed a distorted arc, attributed to the superposition of the impedance of the crystalline phase, glass phase, grain boundary and electrode.
(2) Here, N is the number density of the charge carrier, Ze is the charge of the carrier, a is the hopping distance, Γ0 is the attempt frequency, Δ is the activation energy and f is a correlation factor with a value of approximately 1.
Furthermore, the difference of σdc seems to depend on the prefactor σ0, indicating that the number density of the effective mobile ions is possibly different.
The trajectory of the plotted data showed a distorted arc, attributed to the superposition of the impedance of the crystalline phase, glass phase, grain boundary and electrode.
(2) Here, N is the number density of the charge carrier, Ze is the charge of the carrier, a is the hopping distance, Γ0 is the attempt frequency, Δ is the activation energy and f is a correlation factor with a value of approximately 1.
Furthermore, the difference of σdc seems to depend on the prefactor σ0, indicating that the number density of the effective mobile ions is possibly different.
Online since: October 2018
Authors: Anton I. Golodnov, Stepan I. Stepanov, Yu.N. Loginov
The simulation was repeated for several times and at each new stage, the mesh was rebuilt so that the number of elements in critical regions decreased.
The number of recurring calculations was set to 3, the degree of grinding of the mesh during the rebuilding was set to 2 and the permissible level of convergence was set at 5%.
Acknowledgement We hereby acknowledge the support of the Ministry of Science and Education of the Russian Federation, in accordance to the decree of the Government of April 9, 2010. № 218, the project number 03.G25.31.0234.
Pal-Val. et. al., Unusual Young's modulus behavior in ultrafine-grained and microcrystalline copper wires caused by texture changes during processing and annealing.
The number of recurring calculations was set to 3, the degree of grinding of the mesh during the rebuilding was set to 2 and the permissible level of convergence was set at 5%.
Acknowledgement We hereby acknowledge the support of the Ministry of Science and Education of the Russian Federation, in accordance to the decree of the Government of April 9, 2010. № 218, the project number 03.G25.31.0234.
Pal-Val. et. al., Unusual Young's modulus behavior in ultrafine-grained and microcrystalline copper wires caused by texture changes during processing and annealing.
Online since: November 2003
Authors: Sang Woo Kim, Jong Ho Lee, Hai Won Lee, Joo Sun Kim, Huesup Song
It is obvious that both electrical conductivity and gas permeability of
anode substrate are strongly related to the microstructural parameters such as grain size, composition
and spatial distributions of the constituent phases [4-6].
The connectivity of Ni CNi is given by the following equation [8], mL NiL NiL Ni PP P C , , ,24 4 + = (1) where PL,Ni and PL,m are the number of point intersections per unit length of test line with Ni-Ni and Ni-matrix interfaces, respectively.
The interparticle penetration between the neighboring granules is believed to be responsible for the enhanced electrical conductivity with increased number of conduction paths.
In addition, regarding the population of electrochemical reaction site which is corresponds to the number of triple phase junction among Ni, YSZ, and pore in the anode substrate, further investigation is required to achieve the optimum anode microstructure with minimal activation polarization.
The connectivity of Ni CNi is given by the following equation [8], mL NiL NiL Ni PP P C , , ,24 4 + = (1) where PL,Ni and PL,m are the number of point intersections per unit length of test line with Ni-Ni and Ni-matrix interfaces, respectively.
The interparticle penetration between the neighboring granules is believed to be responsible for the enhanced electrical conductivity with increased number of conduction paths.
In addition, regarding the population of electrochemical reaction site which is corresponds to the number of triple phase junction among Ni, YSZ, and pore in the anode substrate, further investigation is required to achieve the optimum anode microstructure with minimal activation polarization.
Online since: April 2003
Authors: Yun Xia Wu, Cheng Yong Wang, Xin Wei, Zhe Qin
The
reason for this was that the amount of grains being cut in unit time rises, and the times of grinding
surface to be impacted increase, fatigue strength of granite descended.
When the speed of belt increased, the increasing of the number of grits engaging cutting in unit time and the reduction of cut thickness of single grit, cause the elastic deformation of cutting trace of grits to decrease and the surface roughness to drop.
While increasing the rotating speed of table, the number of grits cutting materials in unit time decreased, the cut depth and grinding force were increased so that the elastic deformation of workpiece surface became greater and the surface roughness was increased.
SEM pictures indicate that after grinding with surfactant coolants, the micro-cracks and the number of craters on the granite surface increased.
When the speed of belt increased, the increasing of the number of grits engaging cutting in unit time and the reduction of cut thickness of single grit, cause the elastic deformation of cutting trace of grits to decrease and the surface roughness to drop.
While increasing the rotating speed of table, the number of grits cutting materials in unit time decreased, the cut depth and grinding force were increased so that the elastic deformation of workpiece surface became greater and the surface roughness was increased.
SEM pictures indicate that after grinding with surfactant coolants, the micro-cracks and the number of craters on the granite surface increased.
Online since: November 2017
Authors: Peter Sláma, Petr Martínek, Jana Míšková
This steel grade is alloyed with titanium in order to prevent grain coarsening during forging.
Large numbers of cracks were only found in the induction-hardened regions with patterns where the microstructure consisted of martensite.
By contrast, the largest proportion and number of largest particles was found in the material from supplier 1.
As the most severe grinding problems were encountered in the material from supplier 1, it appears that wheel dulling was most severely affected by the quantity of coarse sharp-edged precipitates, rather than the overall number of precipitates.
Large numbers of cracks were only found in the induction-hardened regions with patterns where the microstructure consisted of martensite.
By contrast, the largest proportion and number of largest particles was found in the material from supplier 1.
As the most severe grinding problems were encountered in the material from supplier 1, it appears that wheel dulling was most severely affected by the quantity of coarse sharp-edged precipitates, rather than the overall number of precipitates.