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Yinhua L.,Zhengzhou University of Light Industry | Li X.,Henan Entry Exit Inspection and Quarantine Bureau | Junlei H.,Zhengzhou University of Light Industry | JianXiang Q.,Zhengzhou University of Light Industry
Jingangshi yu Moliao Moju Gongcheng/Diamond and Abrasives Engineering | Year: 2010

Personal fectors often affect the accuracy of test results in the course of data recording and processing of abrasive grain measurement by sedimentation tube. A micro powder abrasive grain measurement and data processing system were designed by using Stroke law and the charactristics of the new generation microprocessors. The basic principle and mathamatical model of the sedimentation methods were introduced, and the correctional relationships between density and vescosity of sedimentation solutions versus temperature were analyzed. The software and the hardware circuits of the systems were designed. Acording to the actual measurement and data processing analysis of the test samples, we got such results as: Stable data recording and processing, convenient operation, neat curves display, and easy to expand. So it has broad application prospects. Source


Zhang Y.Y.,University of Science and Technology of China | Zhu M.M.,Henan Entry Exit Inspection and Quarantine Bureau
Advanced Materials Research | Year: 2011

Based on the large analysis software ANSYS, the FEA model of feeder was be setted up, the mechanical properties of the material was considered ,and the stress and deformation under loaded of two type materials HDPE and LDPE were be Comparative analysied, Results show that: the funnel's stress smaller,the maximum stress only 2-3Mpa and no more than 7-31Mpa of two materials' tensile strength.The funnel's deformation in allowing strain range about 2-3 mm, so structure is safe.In addition,the feeder legs bearred bigger force about 60Mpa, because the material was used Q345 steel, so the strength was enough and HDPE material feeder have leeway of reduced materials. © 2011 Trans Tech Publications. Source


Zhai S.-L.,South China Agricultural University | Zhai S.-L.,Guangdong Academy of Agricultural Sciences | He D.-S.,South China Agricultural University | He D.-S.,Guangdong Dahuanong Animal Health Products Co. | And 11 more authors.
Infection, Genetics and Evolution | Year: 2014

Complete genome characterization of porcine circovirus type 2 (PCV2) for bovid origins was still unclear in China. Therefore, in this study, PCV2 full-length genome of buffalo-origin was amplified and analyzed using PCR, DNAStar and MEGA 5.1. Genome size of three distinct PCV2 strains (buffalo1, buffalo2 and buffalo3) was 1767. bp (48.56% G. +. C), 1767. bp (48.67% G. +. C) and 1768. bp (48.08% G. +. C), respectively. At the nucleotide level, their identity varied from 95% to 96% for complete genome, from 97% to 97.8% for ORF1, and from 90.6% to 94.4% for ORF2. At the amino acid level, their identity varied from 98.7% to 99% for ORF1, and from 88% to 94.9% for ORF2. Online Blast analysis showed that buffalo1, buffalo2 and buffalo3 had highest nucleotide identity (varied from 99.77% to 99.83%) with porcine-origin PCV2 strains. Moreover, in the phylogenetic tree, they were divided into three different clusters and belonged to the worldwide accepted genotypes of PCV2b, PCV2c and PCV2a, respectively. To summarize, this study first recorded complete genome information of PCV2 for non-porcine origins in China. © 2014 Elsevier B.V. Source


Zhang Y.Y.,University of Science and Technology of China | Zhu M.M.,Henan Entry Exit Inspection and Quarantine Bureau
Advanced Materials Research | Year: 2011

Asphalt need asphalt box to preservate heat in the production and use process,if stored appropriate, asphalt can repeated heating namely its performance won't be damaged badly under higer temperature keep a very long time,So, the asphalt box's performance is very important. in this paper, the mechanical properties of the material was considered, the FEA model of asphalt box was be setted up,the stress and strain of unloading entrance was be analysed when in the 4g longitudinal accelerated speed and a standpoint was be determined that the structure performance of asphalt box is Meets the related standard requirements. © 2011 Trans Tech Publications. Source


Zhang Y.Y.,University of Science and Technology of China | He C.X.,University of Science and Technology of China | Zhu M.M.,Henan Entry Exit Inspection and Quarantine Bureau
Advanced Materials Research | Year: 2013

In this paper Flexible flywheel EP6's several working conditions had be Simulation, Under a certain Factor of safety conditions. The reasonable Structure design had be found, through Compared with the results of fatigue test. Therefore, the Objective had be Achieved of improve design, reduce the times of experiment and shorten the cycle of research. © (2013) Trans Tech Publications, Switzerland. Source

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