Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology

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200 articles
Proceedings Article

The effect of particles integrity on the damping capacities of fly-ash cenospheres/AZ91D composites

GuoLi Fan, RongYu Si, Ming Yuan
10wt.% of fly ash cenospheres (FAC), two kinds of particle average size (60 m and 120 m), two kinds of particles morphology (ball-milled to powder fragments and non-ball milled), were added to the AZ91D Mg alloy slurry to prepare the four kinds of magnesium matrix composites by stirring casting method....
Proceedings Article

Preparation and microstructure characterization of zinc coating prepared by pack cementation

Li Liu, Sirong Yu
The zinc coatings on Q235 steel substrate were prepared by pack cementation at 400 °C for different holding time. The microstructure, thickness and hardness of the coatings were investigated. The thickness and hardness of the coating increased gradually with increasing heating time. The coating was composed...
Proceedings Article

Comparison of wear behavior of WC-Cr3C2 reinforced Ni-Cr layers in dry friction and in distilled water

Jianbo Zhao, Yong Wang, Bin Han
WC-Cr3C2 reinforced Ni-Cr layers using self-made Ni55 alloy powder were deposited on a medium carbon steel by laser cladding in this work. From the results of contrast wear tests in dry friction and in distilled water, we found that water plays few lubrication in the process of friction and wear, but...
Proceedings Article

Study on Arc Envelope Grinding Process of Revolving Curved Surface

LingYe Kong, QiuSheng Yan, YongLiang Qiu, Tengxiong Qiu
To meet the precision machining needs of axisymmetric revolving curved surface, the arc envelope grinding technology for curved surface is studied so as to make a breakthrough in the current process. The particularity of arc envelope grinding of curved surface is analyzed. Through the analysis of the...
Proceedings Article

Research on real time compensation of thermal errors of CNC lathe based on linear regression theory

YongLian Qiu
In the field of precision machining thermal error is one of the main error sources in CNC machining. The thermal error compensation of CNC lathe can effectively improve the machining accuracy of machine tools. On the basis of the research of local thermal error compensation technology in NC lathe the...
Proceedings Article

Fabrication of thermal barrier coatings on the inner surface of carbon steel tubular components via a novel mechanical alloying method

Bo Li, YiFu Shen
The thermal barrier coatings of NiCrAl•Y2O3 and NiCrAlCo•Y2O3 were fabricated on the inner surface of low carbon steel tubular components via a novel high-energy mechanical alloying method. The microstructure, elemental distribution and phase composition of the prepared coatings were carefully investigated...
Proceedings Article

A Method of Hand Contour Tracking based on GVF, Corner and Optical flow

Ke Du, Ying Shi, Jie Chen, MingJun Sun, ShuHai Quan
Since bare human hand is highly articulated and deformable, its tracking is more challenging than rigid object tracking. In this paper, an automatic approach is proposed to track hand contour on the basis of gradient vector flow (GVF Snake), corner detection and sparse optical flow. The skin-color model...
Proceedings Article

Preparation of Zeolite Cross-linked Chitosan and Adsorption for Copper(II) and Iron(III)

Zengxin Li, Yuehuan Yuan, LiLi Xing, Yujuan Ma, Rutao Wang
Copper and iron ions are common heavy metal ions in industrial wastewater, pollution can be caused by the direct emissions of wastewater to the environment, only when waste water reach the standard that it can be let out. Zeolite cross-linked chitosan composite adsorbent using natural raw materials,...
Proceedings Article

Emission Control of Trace Heavy Metal Elements in Coal-fired Power Plants

Debo Li, QiSheng Xu, Cao Xin, Xudan Ren, Jianyi Lu
The trace heavy metal elements occur in coal during the coal-forming process and enrich on the bottom ash or fly ash after coal combustion, then escape into the air in the form of particulate or vapour, causing certain environmental hazards. In this paper, control methods for three important trace heavy...
Proceedings Article

Experimental study on the particle removal efficiency of pellet flue gas in wire-tube electrostatic precipitators

YongZhang Cui, Linhua Zhang, Jie Sun, Guokai Zhang
This paper evaluates experimental the influence operating parameters of wire-tube electrostatic precipitators on Particle collection efficiency of pellet furnace flue gas, such as particle diameter, electric field voltage, Particle concentration, and flue gas velocity. Particle removal efficiency increases...
Proceedings Article

Total nitrogen removal of synthetic leather wastewater treated by MBBR

Yuanhong Ding, Yi Qian, LingLing Li, Hongqiang Ren, Qing Wang
one anoxic-aerobic Moving Bed Bio-film Reactor combined with membrane (MBBR) was used to treat a kind of synthetic leather wastewater, when the value of BOD/TN was controlled from 0.8 to 1.5, about 83.6% of ammonia nitrogen, 61.5% of total nitrogen, 87.4% of nitrate nitrogen, was averagely removed respectively,...
Proceedings Article

Study on the Conversion of Carbon Dioxide by Microwave Plasma Technology

YuQiong Wu
Carbon dioxide as the final oxidation product of carbon and carbon containing compounds, whether it is from the comprehensive utilization of carbon resources, but also from environmental pollution control, the research and development of its transformation and utilization has a very important significance....
Proceedings Article

Synthesis of 6, 4’’-Di-O-methylerythromycin A and its derivatives

Liquan Sun, BuFang Ma, GuoWei Yao
6,4’’-Di-O-methylerythromycin A is a relative substance of clarithromycin, which is due to incomplete protection of 4’’-OH during the methylation process. In this study, 6,4’’-Di- O-methylerythromycin A(5) and its derivatives including 2’-O-TMS-6-O-methylerythromycin A 9-[(1-ethoxy-1-methylethyl)oxime](2),...
Proceedings Article

Study of Tubular Nickel Oxide Electrode

Ke He, Jie Cheng, Yuehua Wen, Wenwen Cai, YuSheng Yang
Tubular nickel oxide electrode was designed and tested in the paper. We successfully prepared a calandria by using polyamide filament, and successfully prepared a tubular nickel oxide electrode by using the tube and foamed nickel oxide electrode. Testing results of the tubular nickel oxide electrode...
Proceedings Article

Research on defects and control method based on thread shaft forming

Huajun Yan, Shuangjie Zhang, Shibo Ma
The defects of incomplete tooth, low tooth height and big pitch are easy to produce, when the thread shaft is rolled by cross wedge rolling. The forming defects of teeth are researched by theoretical analysis and numerical simulation, the causes of producing tooth defects are analyzed, and forming process...
Proceedings Article

Influence of Meteorological Factors and VOCs on PM2.5during Severe Air Pollution Period in Shijiazhuang in Winter

Shuo Li, AiLing Ren, Bin Guo, Zhao Du, Shuo Zhang, Miao Tian, Shanshan Wang
The object of this study was to investigate the chemical compositions of PM2.5 and its correlations with the concentration of volatile organic compounds(VOCs) and meteorological parameters during severe air pollution period in Shijiazhuang, a northern city, China in winter. PM2.5 samples were collected...
Proceedings Article

Catalytic performances of Cu-Mn-Ce oxide/SiC monolithic catalyst for oxidation of toluene under microwave irradiation

Bin Guo, Xurui Hu, Xin Wang, Shuo Zhang
A monolithic Cu-Mn-Ce oxides supported on a ring of silicon carbide (SiC) with molar ratios 1:2:1 were prepared by the sol-gel combustion method without any binder. The catalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller method (BET)....
Proceedings Article

Study on purification of acetone gas by UV/Fenton

WenXia Zhao, Hui Kang, AiLing Ren, Ruijing Yao, Keqiang Wang
VOCs was one of main air pollutants. Fenton reaction was concerned because of its oxidation, high speed and high efficiency. In this paper, the Fenton reagent combined with UV was used to purify acetone gas, and the effect factors was studied. The results showed that the removal efficiency of acetone...
Proceedings Article

The Olive Fruit Wine Research on the Fermentation Process and Aromatic Ingredients

Jitian Song, Xi Chen, Yuchen Song, Wei Tia, Jianbo Liu
In order to obtain the olive wine that has pure taste, rich in nutrient. This paper uses the olive juice, olive pomace, and the mixture as fermentation materials. As a result, three different olive wines are obtained. The components in wine are analyzed by GC-MS. The results show that the olive wine...
Proceedings Article

Road Dust Emission Spatial Characteristics of Shijiazhuang in 2014 Spring

JieYing Xiao, Juan Liu, WenXia Zhao, Shuo Guo, Sai An, Hui Kang, TianLin Yang
City road dust was one of the main sources of PM10. In this paper, roads were classified into four types: expressway, trunk road, secondary trunk road and branch road. Dust samples were collected from 17 representative roads of Shijiazhuang city, and were analyzed by laser particle size analyzer. And...
Proceedings Article

Photodegradation and Mineralization of Acetic Acid by Titanium Dioxide Films

YuLian Quan
ITO (indium-tin oxide) conductive glass plates were used as a support of Titanium dioxide films. TiO2/ITO films were prepared by sol-gel and dip-coating method with cheap inorganic salt TiCl4 as a precursor. The photocatalytic activity was evaluated by the photocatalytic decomposition of acetic acid...
Proceedings Article

Enhanced Photocatalytic Activity and Mechanism of La3+- Doped BiPO4

YuLian Quan
La3+- doped BiPO4 photocatalysts were synthesized by a hydrothermal method. The morphologies, structures, components, and light absorption properties of the photocatalysts were evaluated using XRD, FESEM, EDX, BET, XPS, and DRS techniques. La-doping could improve the photocatalytic activity of BiPO4...
Proceedings Article

High sedimentation rate region of Pb in Jiaozhou Bay

DongFang Yang, Sixi Zhu, Yunjie Wu, Xiuqin Yang, Fengyou Wang
Based on investigation dada on lead (Pb) in July and October 1984 in bottom waters in Jiaozhou Bay, we analyzed the content, pollution level and distribution of Pb. Results showed that Pb contents in 1984 in bottom waters were 1.33-17.34 g L-1 and were meeting Grade II, III and IV in National Sea Water...
Proceedings Article

Pb pollution from land-based sources in adjacent region of Jiaozhou Bay

DongFang Yang, Danfeng Yang, Sixi Zhu, Mingzhong Long, Fengyou Wang
Based on investigation dada on lead (Pb) in July, August and October 1984 in Jiaozhou Bay waters, we analyzed the content, pollution level and distribution of Pb, and defined the major sources of Pb. Results showed that Pb contents in 1984 in surface waters were 0.72-36.00 g L-1 and were meeting Grade...
Proceedings Article

Vertical variation and migration of Pb in Jiaozhou Bay waters

DongFang Yang, Sixi Zhu, Danfeng Yang, Fengyou Wang, Yunjie Wu
Based on the investigation data on Pb in waters in 1984, were analyzed the horizontal distribution, seasonal variation and settling process of Pb in water in the bay mouth of Jiaozhou Bay, eastern China. Results showed that the seasonal variations of Pb contents in surface waters and bottom waters were...
Proceedings Article

Fatigue reliability analysis of running system of large passenger vehicle considering velocity distribution

WenLiang Li, Wei Zhou, Lu Zhang, ChunXiao Ren
Based on the theory of nominal damage prediction, the influence of vehicle velocity on fatigue damage is analyzed, and the equivalent coefficient of different speed is proposed. The real vehicle test is carried out, and the equivalent coefficient of different velocity is calculated, and the fatigue reliability...
Proceedings Article

Static Strength and Modal Analysis of Crankshaft of a High-speed Reciprocating Compressor

Guangyu Mu, Feng Wang, Xiaozhen Mi
Crankshaft is the main part of reciprocating compressor. Its structure parameters influence the reliability and service life. In order to improve the reliability of the crankshaft, Finite Element Method (FEM) is applied for three-dimensional modeling and static strength analysis. The shaft model is established...
Proceedings Article

Research on the Deformation and Aerodynamic Characteristics of Flexible Flapping Wings Mimicking Cicada’s Wing

Xijin Zhang, Qiang Dong, Ning Zhao, Yuan Shen, Yan Wang
Flexibility of an insect wing has an important effect on the aerodynamic characteristics. In this paper, deformations and aerodynamic characteristics of flexible flapping wings referred to a real cicada’s wing are investigated. Firstly, 3 flexible flapping wing models referred to a real cicada’s wing...
Proceedings Article

Simulation of Synchronous Motor Power driven System for EPS Based on SVPWM-DTC

XueFeng Ye, ZuHua Fang, Ying Sun, GJ Guo, Jiale Wang
DTC (Direct Torque Control) with the torque and stator flux linkage as control variables directly, has the advantage of quick dynamic torque response, good anti-interference performance is also as an advantage, especially suitable for vehicle EPS power driven system to the requirement for the fast torque...
Proceedings Article

Design of small four-rotor UAV transmission line inspection systems

Jinhu Liao, QingYong Zhang, Yixin Su, Guoting Qian
A small four-rotor UAV transmission line inspection system is designed, which not only can cruise and avoid obstacles automatically, but also can be controlled with the remote. The system carries out data collection of transmission lines by the camera module, makes use of FPV technology to realize the...
Proceedings Article

Codonopsis on Exercise Stress Ulcer rat stomach tissues and motilin content on HSP70 expression

Hui-feng JING
Objective: To investigate the occurrence of exercise stress gastric ulcer during motilin hormone content and expression of HSP70 and dangshen on Exercise Abstract.Objective: To investigate the occurrence of exercise stress gastric ulcer during motilin hormone content and expression of HSP70 and dangshen...
Proceedings Article

Preparation and Characterization of zirconia-core ceria -shell composites and its formation mechanism

Xilu Hou, Kehui Qiu, Min Zhang, Wenjian Tang, GongGong Lu, Xiqiang Yuan, Qianchen Liu
In this work, a strategy was developed for the synthesis of nano-sized, zirconia-core ceria -shell composites directly via chemical precipitation method in mixed solvents. The as-synthesized ZrO2@CeO2 composites were characterized by X-ray diffraction (XRD), zeta potential analysis, field emission scanning...
Proceedings Article

Preparation and Photocatalytic Properties of Cu-doped Nano-TiO2/Microcrystal Muscovite Composites

Xiqiang Yuan, Kehui Qiu, Wenjian Tang, Qianchen Liu
With microcrystal muscovite (MCM) as the carrier, butyl titanate as the source of titanium, acetic acid as the inhibitors, copper nitrate as dopant, Cu-doped nano-TiO2/MCM composites were prepared by the sol–gel method. Then the composites were calcined at 500 oC for 2 hours. The samples were characterized...
Proceedings Article

A novel adsorbent for Sr2+ prepared by grafting the DB18C6 on D564 resins

XiuShen Ye, Yaoqiang Hu, Chaoming Quan, Li Sun, Haining Liu, Zhijian Wu
A novel adsorbent was prepared by grafted the Dibenzo-18-Crown-6-Ether (DB18C6) on D564 resins and characterized by Thermogravimetry (TG) and Fourier Transform Infrared Spectroscopy (FTIR). Adsorption of Sr2+ from aqueous solutions was investigated in batch method as a function of contact time, concentration...
Proceedings Article

Solution Structure of Alkaline NaBH4 Solution: A sight From X-ray Scattering

Yongquan Zhou, Chunhui Fang, Fang Yan, Tao Song
The time and space-averaged structure of alkaline aqueous NaBH4 solution were given by X-ray scattering with a five-circle goniometer in Beijing Synchrotron radiation facility. Then the hydration structure of BH4- were presented through geometrical model calculation, the characteristic distance and the...
Proceedings Article

Transferability of giant atomic clusters in the HCP crystals twinning

Shan Jiang
The atomic motions in the twinning deformation of hexagonal close-packed (HCP) crystals was investigated at the atomic scale by using the giant atomic clusters (GACs) induced model, aimed at deepening the understanding to the twinning mechanism. It is found that the twin boundaries are composed of gradually...
Proceedings Article

Effect of Cr content on the micro structure and abrasion performance of high chromium cast Iron

Yunlong Zhang, Yumin Zhang, Wei Zhou, RuiXia Zhang, Ming Hu
In order to achieve the gradient metal high chromium cast iron which can fill the 3D network structure SiC porous ceramics, it was necessary to design cast iron materials with different performance by adjusting the experimental parameters. The cast iron material was fabricated by the molten casting method....
Proceedings Article

Structural refinement of Cr-75Nb alloy subjected to air blast shot peening

Haizhong Zheng, Qinhao Luo, XiaoYong Shu, Guifa Li, LingLing Xiong
In this paper, the air blast shot peening on Cr-75Nb alloy was carried out at the pressure of 0.6 MPa and processing duration of 13 min. The result showed that a severe plastic deformation layer was gained on the surface of Cr-75Nb alloy. The thickness of deformed layer was about 50 µm, and the structural...
Proceedings Article

The application of PTFE coating on spherical joints

Jie Zhang, Dan Wang, Wuyi Chen
Spherical joints are wildly used in parallel mechanisms. This paper applied polytetrafluoroethylene (PTFE) on the surface of spherical joints, aiming at reducing both frictional resistance and clearance of this kind of joints. Firstly, three kinds of solid lubricants were coated on flat samples and their...
Proceedings Article

Effect of 5Gpa Pressure Treatment on the Phase Transformation of α+γ2 β in Cu-Al Alloy

Jinzhu Zhao, Shengxue Yu
The phase transformation temperature and time of + 2 ß in Cu-Al alloy before and after 5Gpa pressure treatment were measured by differential scanning calorimeter, its activation energy and Avrami exponent were also calculated. The effect of 5Gpa pressure treatment on the phase transformation of + 2 ß...
Proceedings Article

A new coupling process for synthesis of epichlorohydrin from dichloropropanols

DaWei Wu, Sumin Zhou
As an important material used in the production of epoxy resins, epichlorohydrin is usually derived from the saponification and cyclization of dichloropropanol in a tower reacting system. In order to reduce energy consumption and wastewater discharge, a new process of tubular reactor coupled with wiped...
Proceedings Article

Carbonation precipitation of manganese from electrolytic manganese residue treated by CO2 with alkaline additives

HongLiang Chen, Renlong Liu, Qian Long, Zuohua Liu
This work reports the results of carbonate precipitation of soluble manganese by CO2 with alkaline additives with the aim of eliminating the harm caused by electrolytic manganese residue (EMR). Results showed that CaO exhibited a better performance for the precipitation of manganese which was converted...
Proceedings Article

Thermodynamic analysis of X80 pipeline steel after calcium treatment

Pengbiao Wang, Qichun Peng, JinLing Yang
Based on thermodynamic calculation analysis the inclusions and thermodynamics of X80 before and after calcium treatment on the sample of a steel production Results show that the effect of Al2O3 inclusions degeneration is good and S would exist in a dissolved state so that avoids the CaS inclusion precipitation...
Proceedings Article

Modeling hydrodynamic behavior in fixed bed bioreactors under different hydraulic conditions via Retention Time Distribution

Ming Zeng, Audrey Soric, Nicolas Roche
In this study, effects of hydraulic conditions including hydraulic loading rate and hydraulic saturation condition in fixed bed reactor with two different porous media were investigated by retention time distribution analysis. In terms of hydraulic modeling, models of tanks in series, plug flow and their...
Proceedings Article

Preparation and characterization of high efficient Ion-sieve H8Nb22O59•8H2O

Chang Wang, Pengfei Cao, Xianglong Zhang, Denghui Wang, Baojuan Dou, Ming Zeng
The adsorbent H8Nb22O59•8H2O and its precursor Rb8Nb22O59 were prepared to produce high-purify NaCl. Their characteristics were studied by X-ray diffraction (XRD), thermogravimetric and differential scanning calorimetry (TG-DSC) and scanning electron microscope (SEM). Two main calcinations factors of...
Proceedings Article

Rotor Dynamical Characteristics of Helicopter Start

Hongru Ma, Yue Wang, Zhitao Mu, WenSheng Sun
Based on the theory of finite rotation beam, together with the finite element method, the rotor dynamic model is established, and the relationship of strain and displacement in the strain energy of blade is solved by introducing the generalized Danielson-Hodges strain and Green-Lagrange strain. The three-dimensional...
Proceedings Article

Design and Optimazation of the Shell for One Camera

Bo Gao, Hongtao Yang, Kui Shi, Weining Chen
The structure of the shell designed for a camera was investigated. The duralumin named 2A12-T4 was chosen as the main material in order to achieve the minimum weight, and the finite element optimization method was used for the design of the shell. Introduced the structure characteristics of the shell....
Proceedings Article

The numerical simulation of the influence of orientational vibratory stress relief to aluminium alloy 7075-T651 fatigue life

Jing Song, Yidu Zhang, Ke Sun
For the application situation of traditional vibratory stress relief (VSR) method, technology of orientational VSR was proposed, that is the residual stress distributions of workpiece is simulated by use of finite element method, and then determine the part of workpiece need to reduce residual stress,...
Proceedings Article

Preparation and Characterization of Soybean Straw Activated Carbon by Zinc Chloride

Zhong Xu, Dan Zhao
The activated carbon was prepared from soybean straw by activation of zinc chloride. Porosity characterstics were determined from the analysis of N2 adsorption isotherms using BET and BJH method. Microstructure of the sample was examined using a scanning electron microscopy.The results showed that the...
Proceedings Article

Synthesis and Properties of a Double-sided and Multi-layered Metal Organic Framework

Huanqing Ma, Shujun Wang, Hongyan Liu, Fanbin Meng, WeiYing Gao, Xingyu Xu
Two new double-sided and multi-layered network porous compound named 1 [Ni2(BTC)2(DABCO)(DEA)2] have been synthesized by solvent thermal synthesis method. Which, for the first time, exhibit an unusual double-sided and multi-layered MOF. The double-sided MOF structure extended to regular hexagon morphology...
Proceedings Article

Oxalate-loaded microcapsule prepared with acrylonitrile-styrene copolymer (AS)

Fanbin Meng, Shujun Wang, Zhoupeng Duan, XianLiang Huo
Oxalate-loaded microcapsules can be used as applicable catalyst of in-situ heat system for hydraulic gel fracturing. In this study, oxalate-loaded microcapsule was prepared with AS as the shell material via phase separation. The product was characterized by thermogravimetric analyzer (TGA), laser diffraction...
Proceedings Article

Influence of cross-linking agent on the hydrophobicity of microencapsulated ammonium polyphosphate with tung oil phenolic resin

WeiYing Gao, Shujun Wang, Fanbin Meng, Huanqing Ma, Yuanhao Wang
Ammonium polyphosphate (APP) was encapsulated with different cross-linked structure tung oil phenolic resin(TPF) by in situ polymerization and it was performed that a study on the influence of the cross-linking agent type on the hydrophobicity of the APP microcapsules.The chemical and physical features...
Proceedings Article

Phosphate liquid-phase adsorption removal by calcination dolomite and multi-variables interaction effects

Rongtai Yu, Xiang Ma, Yonghui Hong, Zhipeng Xie, Changan Wang
An experimental study on the adsorption removal of phosphate onto a natural and cheap dolomite mineral was carried out. The effects of calcination temperature, holding time, initial pH and dosage on phosphate adsorption were investigated, and multi-variables interaction effects were explorated. The effect...
Proceedings Article

Polarization behaviors in a transverse Ising film with multi-surface layers

QiuShi Li
The mean-field theory is used to study polarization behaviors in a ferroelectric thin film described by the transverse Ising model. The dependence of average polarization and layer polarizations of the transverse Ising film with two surface layers on the Curie temperature or transverse field is discussed...
Proceedings Article

Research on rotate status of non-circular cross-section discrete rods

Junting Yin, Gang Li
Put forward a circumferential configuration non-circular cross-section discrete rod and it’s charge structure. The results of numerical simulation show, by adjusting discrete rod and matching detonation loading, the charge circumferential integration of the discrete rod can dispersing along the radial...
Proceedings Article

Nonlinear Observer Design for One-Sided Lipschitz Generalized System

Yunan Zhao, Junguo Lu
State estimation of systems satisfying some special nonlinearities have been important topics in nonlinear system theory. In this paper, we discuss the problem of observer design for one-sided Lipschitz nonlinear generalized systems based on generalized quadratic stability and Lyapunov function, by using...
Proceedings Article

Synthesis of 3-bromo-4-isobutyloxyphenyl carbothioamide

Qinqin Wang, Yuping Guo, Min Wang, WuFu Zhu, Shan Xu
3-bromo-4-isobutyloxyphenyl carbothioamide 1 is an important intermediate in many biologically active compounds such as febuxostat. In this work, a rapid synthetic method for compound 1 was established. The compound 1 was synthesized from the commercially available 4-hydroxybenzonitrile 2 through three...
Proceedings Article

Synthesis of N-4-(4-chloro-3-trifluoromethyl-phenyl)-7-methoxy-quinazoline-4,6-diamine

Yiqiang OuYang, Chen Chen, Ping Wang, Chao Sun, WuFu Zhu, Shan Xu
N-4-(4-chloro-3-trifluoromethyl-phenyl)-7-methoxy-quinazoline-4,6-diamine (1) exhibited potential biological activities in medicine, 4-chloro-7-fluoro-6-nitro-quinazoline (2) is an important intermediate in compound 1. In this work, a rapid synthetic method for compound 1 was established. The compound...
Proceedings Article

Study on synthesis of (2S,3S)-2-methyl-3-((triethylsilyl)oxy)pentanal

Shenkun Yang, TianXiang Xu, Shuangping Huang, Xiaoji Wang
The C19-C23 fragment (9) of the anti-trypanosomal natural product actinoallolide A was prepared via an elegant stereo-controlled route. We installed the chiral center at C20 through a standard Evans aldol reaction, and protected the secondary hydroxyl group via a silylanization.
Proceedings Article

Study on Synthesis of (R)-tert-butyl 2,2-dimethyl-4-(prop-1-yn-1-yl)oxazo lidine-3-carboxylate

Cheng Liang, ShuangLin Qin, Xiaoji Wang, Shuangping Huang
(R)-tert-butyl 2,2-dimethyl-4-(prop-1-yn-1-yl)oxazolidine-3-carboxylate, an key intermediate of Biotin which is a water-soluble vitamin involved in an essential part of the metabolic cyle causing catalytic fixation of carbon dioxide in the biosynthesis of fatty acids, sugars, and -amino acids, was synthesized...
Proceedings Article

Study on synthesis of (R)-tert-butyl 4-formyl-2,2-dimethylthiazolidine-3-carboxylate

Shenkun Yang, ShuangLin Qin, Xiaoji Wang, Shuangping Huang
(R)-tert-butyl 4-formyl-2,2-dimethylthiazolidine-3-carboxylate is an imntermediate of S-jaspine B known as a potential substitution of pachastrissamine (jaspine B) which shows effective biological activity. Herein we describe an elegant straightforward synthetic path for this attractive molecule intermediate.
Proceedings Article

Study on Synthesis of 6-Pentyl-tetrahydro-thieno[3,4-d]imidazol-2-one

Cheng Liang, ShuangLin Qin, Shuangping Huang, Xiaoji Wang
A synthetic route from 5-(2-Oxo-hexahydro-thieno[3,4-d]imidazol-6-yl)-pentanoic acid (biotin) to 6-Pentyl-tetrahydr o-thieno [3,4-d] imidazol-2-one which have important antibacterial bioactivity was described. The whole route processed in overall 56% yield, including an esterification, a DIBAL-H reduction,...
Proceedings Article

Study on Synthesis Of Oxetan-3-ol

TianXiang Xu, Xiao Leng, Shuangping Huang, Xiaoji Wang
One concise methods for synthesis of oxetan-3-ol from epoxy chloropropane are reported. The method involve employsepoxy chloropropane opening of reaction, esterifiction, electrophilic reaction, ring-closure reaction.
Proceedings Article

Synthetic Study towards (+)-Clavosolide A: Synthesis of the Intermediate of (R)-methyl 5-hydroxy-3-oxoheptanoate

Xiao Leng, TianXiang Xu, Shuangping Huang, Xiaoji Wang
The important intermediate, (R)-methyl 5-hydroxy-3-oxoheptanoate, of study towards to total synthesis of (+)- Clavosolide A (1) was described, which was commenced from commercially available D-phenylalanine.
Proceedings Article

Synthetic study towards (+)-vertine and (+)-lythrine synthesis of the intermediate of benzyl-2-(1-methoxy-1,3-dioxobutan-2-yl)piperidine-1-carboxylate

Shuangjie Lin, Xiao Leng, Xiaoji Wang, Shuangping Huang
Synthetic study of the intermediate of (+)-vertine and (+)-lythrine, benzyl-2-(1-methoxy-1,3-dioxobutan-2-yl)piperidine-1-carboxylate was described, which included protection, reduction and addition of silyl enol ether.
Proceedings Article

Research on local pressure bearing capacity of prestressed deep corbels under interaction of vertical and horizontal loads

XinSheng Yin, Yang Liu
In order to further improve the stress state of reinforced concrete deep corbel under local loads, study on the influence of prestressing on the horizontal bearing capacity. Through the calculation and analysis on the horizontal ultimate bearing capacity of deep corbel under certain local loads, and...
Proceedings Article

Theoretical study on effective reinforced depth of vacuum preloading

Huiqiang Gao, Haihong Mo
A new idea about analysis of reinforced depth is proposed. The consolidation degree of soil at any point is calculated base on the conventional consolidation equation for sand-drained ground, and the reinforced depth is deduced through the consolidation degree. The variation of reinforced depth is analyzed....
Proceedings Article

Strength Model of Cementing Filling Body under Lateral Pressure

Jun Wang, Deng-pan Qiao
In recent years, based on that the research and application of the open stoping with subsequent fill continuous mining method of "two step" model is getting more and more attention. The design of the strength of cementing filling body of the first step ore room is especially important under the condition...
Proceedings Article

Study on the influence rule of underlying working face to overlying rock and high level tunnel

AnYing Yuan, Zhenquan Zhang, Yang Li
Aiming at the special situation of high level tunnel under the in fluence of mining in Xieqiao coal mine 21116 working face,the theoretical analysis,numerical simulation and field measurement is taken to analyze it.And it reveals the overlying strata movement rule and mechanism of high level tunnel under...
Proceedings Article

Research of temperature stress Non-abutment slant-legged rigid frame bridge

XiuLing He
In this paper through the establishment of the Midas model, mainly discusses the non abutment slant leg rigid frame bridge in different position in the temperature change stress changes. The results of the study show that, with the Overall temperature changes, no abutment slant leg rigid frame bridge...
Proceedings Article

Continuous rigid frame bridge side span and mid-span ratio of optimization and analysis

XiuLing He
The bridge prestressed concrete continuous rigid frame bridge is a kind of good integrity, reasonable force, construction technology is mature, moderate cost, spanning ability and driving comfort, etc.And in the actual project got a lot of applications while further development prospects are very bright....
Proceedings Article

Study of Failure Criterion for Brittle Rocks Based on Ellipse Criterion

Chao Liu
When rock-like materials are tested under triaxial compression[1] ,two kinds of failure may happen,that is,ductile and brittle failures.The essential reason for rock failure is the relative displacement among mineral particles making up rock.Generally, rock failure can be either tensile or shear,which...
Proceedings Article

Structure Optimization and Numerical Analysis of Cement Concrete Overlay of Some Secondary Road overlay

Moshu Li, Jianming Yang, Chao He
According to disease investigation of cement concrete overlay of some secondary road in Hunan province, analysis model is built by ABAQUS finite element software. Research shows that the mechanical properties of cement concrete overlay of scheme B, C, D is better than scheme A . And scheme C(3.5m+4m+3.5m)...
Proceedings Article

Density Functional Theory Study on the Encapsulation of a Polymeric Nitrogen N8 Chain inside Boron Nitride Nanotube

XiuLi Feng
A new nanoscale hybrid material, where a nitrogen chain N8 is encapsulated inside a boron nitride nanotube, is studied by density Functional theory (DFT). The structure, NBO charges, binding energy and electronic property are calculated at the B3LYP-D3/6-31G(d) level of theory. It is found that the N8...
Proceedings Article

Flexural behaviors analysis of ECC-RC composite beams reinforced with FRP bar based on OpenSees

Wenjie Ge, Junyu Chen, Haihuan Wang, Ke Zhao
Based on the finite element analysis software OpenSees, the flexural behaviors of ECC-RC composite beams reinforced with FRP bars is analyzed. The results show that cracking, yield and ultimate moment increase with the increasing of height replacement rate and the increasing rate slow down gradually....
Proceedings Article

Numerical simulation analysis on the flexural behaviors of ECC-RC composite beams reinforced with high strength steel bars

Wenjie Ge, ZhengDong Huo, Changqing Gui, Ming Yang
Based on the simplified material constitutive model and strip analysis method, computer program languages is used to analysis the flexural behaviors of ECC-RC composite beams reinforced with high strength steel bars. The results show that cracking, yield and ultimate moment increase with the increasing...
Proceedings Article

Content and Formation of Acrylamide in Traditional Coffee Roast Programmes

Tongyu Xu, ChunLiang Yang, ShaoDong Zeng, Mingyue Wang
Since the taste, aroma, colour of coffee were the main indicators of traditional coffee roast programme, the content of acrylamide was defined as final standard in this paper. The least content of acrylamide produced in coffee roast process was picked out, and the formation rule of acrylamide was also...
Proceedings Article

Study on the Shear Behaviors of RC New-Beam and Old-Slab Composite Component

DaFu Cao, Xin Wei, Wenjie Ge
In order to study the influences of shear span ratio and stirrup spacing on the shear behaviors of RC beam-slab composite component, static shear experiment of 9 RC beam-slab composite component and 3 beam-slab casting component were made. The results show that the development trend of flexural-shear...
Proceedings Article

Preparation and Characterizations of TiO2 Nanoparticles by Sol-Gel Process using DMAC Solvent

Panpan Zhang, Bing Tang, Wen Xia, Fei Wang, Xiaoyi Wei, Jiaqing Xiang, Jihua Li
Titanium dioxide(TiO2) has a good ultraviolet masking effect, antibacterial and photocatalytic function, so it is a good material for the preparation of organic inorganic composite materials, which can be widely used in industrial, food, environmental protection and other fields. In this paper, TiO2...
Proceedings Article

Dynamics Analysis of planetary Gear Train with Two Degrees of Freedom

Lin Xu, Kai Liu, Yahui Cui, Peiyuan Meng
Dynamic analysis method is used in this paper to analyze the dynamic response of planetary gear train with two degrees of freedom under the conditions of the start-up and load step change during operation. The results show that the angular velocity relationship between the components under steady-state...
Proceedings Article

Design of Straight-line Navigation System for Farm Machines Based on Mobile Internet Technology

Hualu Song, Yinfa Yan, Chengcheng Chen, Xiaohui Zhang, Fa-de Li, Xuezhen Sun, Zhanhua Song
In order to keep the farm machines straight in the agricultural production process, the straight-line navigation system for farm machines based on mobile internet technology and inertial navigation technology was developed. Straight-line navigation system consists of sensor subsystem and the Android...
Proceedings Article

Dynamic Performance Modeling and Analysis of B2 - K1016 CNC camshaft grinder bed

JinWei Fan, Lanqing Zhang, HongLiang Wang
It is a measure of the dynamic performance of the machine tool design merits of the important performance indicators.This paper use Pro/E and ANSYS Workbench integrated development platform, for a certain type of grinder bed for three-dimensional modeling and modal analysis to improve dynamic performance,...
Proceedings Article

Fault diagnosis of rolling bearing based on PSO and continuous Gaussian mixture HMM

Guangchun Liao, Haiping Zhu, Kangjun Liu, JiaWei Liao
As the hidden Markov model (HMM) has a strong ability of time sequence modeling, the continuous Gaussian mixture HMM is used to establish a model base of the rolling bearing fault. An adaptive particle swarm optimization (APSO) with extremum disturbed operator and dynamic change of inertia weights is...
Proceedings Article

Research on Fault Distribution Parameters Estimation and Reliability Assessment of CNC Grinding Machine Tools

JinWei Fan, Shi Ji, Shuai Yuan
Fault distribution type identification and probability density function parameters estimation are the prerequisite of CNC grinding machine tools' reliability assessment. The procedure of fault data grouping the technique of probability density function parameters estimation based on least square method...
Proceedings Article

Error sensitivity analysis of machine tools based on multi-body kinematic theory

JinWei Fan, Shuai Yuan, Lanqing Zhang
In order to determine the key factors which have an impact on the machining accuracy of a machine tool after its machining errors occur, a different method analyzing the sensitivity of machine tool errors based on the theory of multi-body system kinematics is proposed. Firstly , the method assumes a...
Proceedings Article

Powertrain modeling and performance simulation for Electric vehicle

Yanan Gou
According to the dynamic performance evaluation indexes of the vehicle, combining the performance requirements of the electric vehicle which paper studied, choosing the motor parameters, transmission ratio and the battery parameters respectively.The vehicle model is established in the ADVISOR software,...
Proceedings Article

Combined multi-functional rehabilitation machine

Tianyi Zhang
The design is a function with a variety of rehabilitation training machine, for there are injuries and recovering patients. The multi-functional integrated set by upper training, lower body and unified protection protective function of limbs force patients were fully trained to play a role in rehabilitation.
Proceedings Article

Influencing Factor Sensitivity Analysis of Dynamic Loading of the Projectile Engraving Experimental Facility

Xue-long Cao, Jun-qi Qin, Chang-chun Di, Ye-zun Sun
In combination with one projectile engraving experimental facility, movement role of the facility and work principle of its parts are analyzed. And structural parameters are considered to have the most influence on the dynamic loading. A virtual prototype model is established by ADAMS (Automatic Dynamic...
Proceedings Article

Reference Vibration analysis of Piezoelectric Micromachined Modal Gyroscope

Cong Zhao, Xiao-Sheng Wu, Guo-Bin Li, Wen-Yuan Chen, Wu Liu, Feng Cui, Wei-Ping Zhang
Piezoelectric Micromachined Modal Gyroscope (PMMG) researched in the paper is a novel kind of angular rate sensor, which is based on high order resonant mode of a piezoelectric body as its reference vibration. Three methods, finite element method (FEM), scanning vibrometer and impedance analyzer, were...
Proceedings Article

Study on Deformation of the Two Rotors of Contra-Rotating Fan under Variable Speeds

DaWei Meng, Xiaobo Sun, Zeqi Zhang
With the purpose of analyzing the pressure and deformation of the two rotors’ blades of contra-rotating fan under variable speeds, the research takes the FBD5.0/2×7.5 mine contra-rotating fan as an example, establishes a 3D physical model of contra-rotating fan’s entire flow passage, and adopts 3D infrared...
Proceedings Article

Research on the Role of Photocatalytic Oxidation in the Deodorization of Industrial Wastes

Chengtao Chen
In this article, we will study the principle of photo catalytic reaction and explore the chemical reaction occurring in the process of deodorization of industrial wasting gas with the combination of the actual situation of Chinese modern factory .We will analyze the reaction principle by using some actual...
Proceedings Article

Gust Response Characteristics of Helicopter Rotor Blade

Hong-ru Ma, Wen-Sheng Sun, Zhi-tao Mu, Guang-yao Yan
The deformation of blades effected by gust would endanger the safety of wind turbine. Based on blades elastic deformation theory ,We established a model of blades rotation transient response ,studied the characteristics of blades transient response effected by gust, and confirmed the procedure of blades...
Proceedings Article

Robust Locator Layout Design for B-pillar Based on Taguchi Experiment

Yu-feng Xia, Li Ren, Cai-hong Ye, Li Wang
For solving the existing problems of assembly quality of B-pillar, a robust design approach was utilized to optimize locator layout of Reinf Pillar and Side Beam Threshold so that the assembly deviation of B-Pillar was minimized. Taguchi orthogonal experiment was carried out to perform the idea by taking...
Proceedings Article

Multi-objective Optimization of Locator Layout of Side-body Panel Based on RSM

Yu-feng Xia, Li Ren, Cai-hong Ye, Li Wang
In order to study the influence of locator layout on assembly quality, the side-body outer panel of auto B pillar was chosen as the object. Based on response surface methodology (RSM) and 3DCS, the quadratic response surface models were built up. The multi-objective function was optimized to get the...
Proceedings Article

Modification and Verification of Fracture Criterion of BR1500HS Based on Freudenthal Fracture Criterion

Yu-feng Xia, Cai-hong Ye, Li Ren, Li Wang
The hot tensile test of BR1500HS ultrahigh strength steel was carried out on Gleeble3500 thermo-mechanical simulator. The process was predicted by finite element simulation based on Freudenthal fracture criterion. Then, the Freudenthal fracture criterion is modified based on the relationship between...
Proceedings Article

Numerical Simulation and Experimental Research on Forward Extrusion of Planet Gear

Yu-feng Xia, Li Wang, Li Ren, Cai-hong Ye
In this work, a forward extrusion technology was developed for spur gear, which used in truck wheel redactor. In order to achieve better technological parameters combination, the finite element method (FEM) and orthogonal experiment were utilized to research the process of planet gear forward extrusion....
Proceedings Article

Exploration on Mineral Flotation Bubble Velocity and Extraction Method of Size Distribution Feature

He-peng Zhou, Yun-qiang Li
Mineral flotation is a complex physical and chemical process that involves solid, liquid and gas phase separation. Many operating variables influence the efficiency of the separation process, and the mutual coupling effects have decisive influence on flotation performance indicators, both from the macro...
Proceedings Article

Research on Digital Signal Processing for Motor Control

Yue Liu
With the development of science and technology and the formation of a comprehensive multidisciplinary technology. The emergence of new permanent magnetic actuator and electronic operation of synchronous technology in the field of pressure to achieve a hardware basis. In order to meet the high reliability...
Proceedings Article

A global view of behavioural design approach for 3D printing in the early design stage

Yixue Jiang, Huichao Sun, Shijiun Ji, Liying Zhao, Yaohong Zhao
Abstract. The mechanical engineering problems today become more and more complex particularly in the area of new product development. Mechanical product design is usually performed simply taking into consideration system functions and structures, while users’ behaviours in terms of using the system are...
Proceedings Article

Approach to Arbitrary Transportation of suspended particles Based on Ultrasonic composite Field

Zhuang Long, Wu Liqun, Du Xibiao, Zhang Linan, Zhai Zhuang
A particle suspension transport method was proposed based on ultrasonic composite field. Firstly,the array focusing model and accumulated force equation were established based on phased array ultrasonic cells delay, then integrated with the standing wave ultrasonic field radiation force calculation method,...