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Online since: July 2012
Authors: Gui Juan Zhang, Yi Ma, Rui Liao, Bi Zhu Tan, Su Yi Zhang, Yu Bin Liu, Min Ma, Xiao Ting Zeng, Zhuo Long Peng, Yi Min Lin, De Hui Li
They were fed full value grain feedstuff, and tap water ad libitum.
Lot number: 090502); Progester- one injection: 1ml/10mg (Zhejiang Xian Ju Pharmaceutical Co.
Lot number: 100301); TAM (Wuhan Chi-Fei Chemical Co.
Lot number: 20110509B042).
Note: all rats were fed full value grain feedstuff and tap water ad libitum.
Online since: December 2016
Authors: De Feng Xu, Li Mei Chen, tao shengnan, Fei Xiao, Li Fa Qinwei, Shu Chao Cheng
As a great agricultural province, Jilin is an important marketable grain base with abundant crop straw resources, where the total consumption tops the list over the country.
According to the dates, we can get that Jilin province's area of crop is 71.85 million mus, the total number of grains is up to 71 billion jins, the annual number of crop straws is about 44 million tons, and the total number of actually usable resources of crop straws is about 39.5 million tons.
Types of straw Yield of straw (million ton) Straw use number (million ton) Use ratio Theoretical quantity Fertilizer Fodder Edible mushrooms Fuel Industrial material Farmers use Corn straw 3402 400.00 600.00 40.00 240 160.00 960.00 79.37% Rice straw 607.5 140.00 55.00 0.00 50 45.00 100.00 72.22% Soybean straw 405 20.00 5.00 0.00 0.00 0.00 0.00 69.44% other 450 0.00 60.00 0.00 29 0.00 100.00 47.25% summation 4500 560 720 40.00 319 205 1160 75.10% The Study on Crop Straws as Insulation Board and Masonry Materials in Our Country Straw Insulation Block.
Acknowledgement This research was financially supported by the Young start-up funding of Jilin Province department projects(serial number:20150204029SF).
Online since: September 2013
Authors: Karsten Flögel, Fabian Faltin
Fowler used titanium materials for his experimental work and found a significant influence of the abrasive properties like the particle size and the grain structure on the MRR.
Plastic deformations of grains in the rim zone as known from AWJT of AlSi-17 alloys are not detected in the prepared cross-section polishes.
With respect to the longitudinal dimensions, cavities with a large scaled radius are identified instead of fractured grains.
The determined numbers of cavities in the boundary surface layer may lead to a reduced fatigue resistance.
Online since: May 2025
Authors: Nandang Mufti, Sukarni Sukarni, Henry Setiyanto, Hariyanto Hidayat, Fadhillah Choirunnisa
AC/TiO2/Fe3O4 nanocomposites have an average grain size of about 124-225 nm.
This is because the anatase phase has a lower recombination rate and smaller grain size, which is favorable for achieving better photocatalytic efficiency.
C=O stretching vibration was found at a wave number around 1647 cm-1 while C-N was around 1080 cm-1.
This is in accordance with research conducted by Sunaryono et a., that the Ti-O-Fe bond is in the range of wave numbers 400-800 cm-1 [31].
The wave number shift in the sample variation can be caused by changes in the molecular structure due to the addition of Fe3O4.
Online since: December 2010
Authors: Feng Guo, Wei Ya Xu, Fei Xu
Cloud Model and its numerical characteristics are showed as follows (Fig. 1): Fig.1Cloud Model and its numerical characteristic Cloud Model from the qualitative to the quantitative expression of the concept of the process, through positive Cloud Generator to convert, according to the number of cloud characteristics (Ex,En,He) to produce Cloud Drops.
A large number of collected data and engineering analogy had access to information on the existence of the different division of the border demarcation of the border demarcation which can be the corresponding sequence group, set it as: X={X11,X12,…X1m} (1) which X1={x11,x12,…x1m},…,Xn={x1n,xn2,…xnm},m is for the division level, and n is the Matter-element to be assessed.
The number of cloud drops generated group can not only calculate the number of group assessment results, assessment results, as a final assessment of reference.
Fig 3Classification of grain increases the cloud observed As of July 22, 2010 monitoring data, select the left slope of the typical measuring points and the strain and strain rate data are larger point value as an indicator to be assessed (Table 2).
(3) Cloud Model is introduced into the sutra field extension assessment is still divided in an attempt to cloud the model for the entropy and hyper entropy of the value, need to combine a large number of reference materials and engineering, there are some difficulties.
Online since: June 2012
Authors: Ze Kun Wang, Jing Da Huang, Chu Wang Su, Li Wei Hu, Qi Jian Li
Table1 The dimension and numbers of samples Processing project Planning Sanding Shaping Drilling Mortising Crosscutting Height×width×length [mm] 19×102×910 10×102×305 19×76×305 19×102 Numbers of samples [piece] 30 30 60 Testing and Evaluation Method.
At the same time, weighted-average number was determined by process's impact on product quality, weighted-average number of planning, sanding, crosscutting and shaping was 2 and weighted-average number of mortising and drilling was 1.The test marks of per process was that the percentage of each level multiplied by the corresponding points, by which, the various machining properties were graded: excellent (4-5); good (3-4); fair (2-3); poor (1-2); very poor (0-1).
The comprehensive marks were the sum of the test marks of per process multiplied by the corresponding weighted-average number, full marks 50 points.
According to the criteria ASTM D1666-87, a hollow chisel was used to process the connected square mortise and it was as far as possible to make two edges of mortise perpendicular to the wood grain and other two edges parallel to the wood grain in processing.
Online since: February 2008
Authors: H. Khorsand, H. Abdoos, S.H. Sadati, M. Arjomandi
Some parameters including chemical composition and grain size are effective factors on this temperature.
This temperature is typically a function of a number of variables which may include stress or magnetic field.
These variables are the number of training data points (N), network size (number of hidden layer and neurons in each layer), and number of training iterations or epoch (C).
Also the ANNs can be judged by various parameters such as the Mean Square Error (MSE) ∑∑== − = Q m N n n n mymd QN MSE 11 2 0 0 )]()([/1 (7) Where N0 is the number of output, Q the number of training sets, d desired output, and y the network output.
The number of neurons used in the hidden layer is 4.
Online since: May 2019
Authors: Oleksandr H. Kurpe, Eduard S. Klimov, Andrii H. Prysiazhnyi, Volodymyr V. Kukhar
Flowchart: the main equipment of the rolling mill 1700: 01 – 4a roughing stand number; 5 – 10 finish stand number; 1 – reheating furnaces; 2 – roughing train; 3 – heat-saving shields; 4 – rotary shears; 5 – finishing train; 6 – accelerated cooling units; 7 – coilers During the production using TMCP technology, the principal difference is the low level of chemical elements that provide for the strength properties of the rolled products (comparison is given in Table 1).
Chemical composition of pilot batch (steel grade S355MC) Heat Mass fraction of chemical elements, [%] C Mn Si S P Cr Ni Cu V Al Ti Nb 255634-2 0.11 1.36 0.03 0.007 0.019 0.04 0.01 0.01 0.004 0.037 0.022 0.030 Nb and Ti are used as chemical composition elements, which make it possible to monitor the grain sizes during the austenitization and rolling, and also changes in the properties owing to carbonitride strengthening.
It is worth mentioning that in order to obtain the necessary mechanical properties, increase in the rolling finishing temperature at the stand 10 and the coiling temperature were compensated by using maximum number of cooling sections, which has contributed to increase in the cooling rate of the rolled products.
The obtained microstructure of the rolled products is ferrite-pearlitic, where ferrite grain number is 9, 10, and banding is 1 point.
The difference in the ferrite grain size between the axis and the surface does not exceed one number, and the metal has almost the same banding across the cross section.
Online since: May 2014
Authors: Hao Zeng, Yan Li
With the rapid development of the IPTV high-definition video on demand, a large number of the video transcoding problem increasingly prominent.
Ws-AC: A Fine Grained Access Control System for Web Services[J].
Online since: May 2011
Authors: Xiao Qing Lian, Xiu Mei Feng, Ming Xue Jiang
Erosion tests on high strengh refractory castables were carried out using SiC grains at impact angles of 30°,45°,60°,and 90° with the velocity of 5m/s.In order to study the variation in stress and system energy with impact angles during solid particle erosion process,a single particle erosion model was designed by means of three-dimensional explicit dynamic software ANSYS/LS-DYNA according to experiment parameters.
The samples were 100 mm long,100 mm wide and 20 mm thick.The erodent particles were angular silicon carbide grains with mean diameter 780μm and hardness 32-34 GPa.
In the early stage of erosion test no material is removed, with a increasing number of impacts, the cracks begin to grow and intersect, eventually lead to material loss.
While the total energy in any physical system is conserved, the slightly reduction of system total energy is the result of material loss in the erosion process .Although a single particle is difficult to result in material loss,the results in this study show that some elements are failure due to the impact, simply because the number of thease elements is little.
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