Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

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440 articles

Enrichment and purification of phenols from Callicarpa nudiflora Hook. et Arn by HP-20 macroporous resin

Xiaojie Yan, Sheng Huang, Fenglai Lu, Zhixin Gu, Lei Wang, Yonglin Huang, Dianpeng Li
Objective To study the technological parameters of the purification process of phenols from Callicarpa nudiflora (C. nudiflora) with HP-20 macroporous resin. Methods The kinetic adsorption and desorption experiments were carried out on HP-20 macroporous resin (HP-20) to optimize the separation process...

Progress on polymerization of -pinene

Denghao Min, Yuxiang Chen, Zhaosheng Cai, Zhendong Zhao, Haibo Zhang
Turpentine oil is one of the most important nature essential oil of the world and it is particularly rich in China. -pinene is one of the principle components of turpentine oil. Turpentine has a high application value, but more applications are prepared terpene resin by polymerization. This paper reviewed...

Determination of Aflatoxin contaminants in chrysanthemum by HPLC

Yubing Zha, Yueping Su, Chunliang G, Yingqiang Huang, Xiaofang Wang, Ling Lin, Shaodong Zeng
A method was developed for the simultaneous determination of Afiatoxin ( AFB1 AFB2 AFG1 AFG2) in chrysanthemum is developed by Liquid chromatograPhy with fluoreseence detection after immunoaffinity column clean up and Pre cloumn derivatization.four south medicine samples were extracted with methanol...

ITS and trnL-F Sequences analysis of Potentilla discolor Bge.

Shaoxuan Zhang, Yarong Li, Tiantian Wang, Guangzhu Lin, Bochuan Wang
To provide scientific data of the internal transcribed spacer (ITS) and trnL-F sequences for the authentication of Potentilla discolor Bge., we extracted the genome DNA from the leaves of Potentilla discolor Bge., purchased from Hebei Province, amplified the ITS region using ITS universal primers of...

Optimazation research on hydrolysis condition of walnut protein

Xiaojie Yan, Jinlei Liu, Ziming Yang, Yueyuan Chen, Dianpeng Li, Weibin Liang
Walnut peptides were obtained through special enzyme or hydrolytic enzyme enzymolysis with walnut residue as raw materials and degree of hydrolysis as index. The results showed that special enzyme was the optimum proteinase. The optimum hydrolytic conditions were as followed: the optimal enzymatic hydrolysis...

Relations of Buildings Materials and Shape

Jing Wu
With the new materials, new technology are being widely applicated in the construction, the requirements has been further, such as how to enrich and expand knowledge and improve their professional qualities. To learn to master modern technology and materials from practice is an effective way. The trend...

Determination of calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method

Chengying Zhou, Yihanna Hu, Liulu Cai, Wei Qu
This paper determined calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method. This method used acid chrome blue K-naphthol green B mixed indicator after adding reducing agent hydroxylamine hydrochloride, masking agent triethanolamine and masking agent L-cysteine. This method...

Evaluation of Nanoemulsion to Improve the Fracturing Fluid Flowback

Baoshan Guan, Wei Jiang, Ping Liu, Li Liang, Jiang Yang
Nanoemulsion (NE) has been widely added into fracturing fluid as flowback additive to enhance fracturing fluid recovery. An environmental friendly nanoemulsion has been formulated. The particle size distribution of the nanoemulsion has been determined. The surface tension and contact angle of the nanoemulsion...

Analysis on the wrinkling in continuous roll forming of three-dimensional surface parts

Weixue Hu, Qingmin Chen, Xueping Yan
Continuous roll forming is a new sheet metal forming process for three-dimensional surface parts. In the process, the sheet metal is thinned non-uniformly in transverse direction by controlling the distribution of the gap between the upper and lower forming rolls, the longitudinal elongation is different,...

The analysis of T-DNA insertional Colletotrichum gloeosporioides in Stylo pathogenicity-weakened mutant strain 1681

Peidong Xu, Xiaolan Zheng, Wen Tang, Qiujie Li, Weihuai Wu, Jingen Xi, Yanqiong Liang, Jinlong Zheng, Rui Li, Chicheng Zhang, Kexian Yi, Chunping He, Xiaobo Zhang
Biological phenotypes of mutant strain 1681 that was the pathogenicity-reduced strain in Colletotrichum gloeosporioides of Stylosanthes guianensia were analyzed by testing growth rate, colonial morphologies and sporulation ability. TAIL-PCR was used to identify the T-DNA integration site and the genes...

Chebyshev polynomials for approximation of solution of fractional partial differential equations with variable coefficients

Zhongshu Yang, Hongbo Zhang
In this paper, a numerical method for solving a class of fractional partial differential equations with variable coefficients based on Chebyshev polynomials is proposed. The fractional derivative is described in the Caputo sense. The properties of Chebyshev polynomials are used to reduce the initial...

Mechanical Behavior and Characterization of Stern-shaft Mechanical Sealing Device

Yongjin Lu, Rui Lin
For the stern-shaft mechanical sealing device, spring pieces and sealing rings are the main study objects of mechanical behavior and characterization. Consequently, the in-situ compression tests for the spring pieces were performed, where special test equipments were applied to ensure the measurement...

Effects of minor Sr addition on solidified structure and mechanical properties of Mg-Y-Cu alloy reinforced by long period ordered structure

Sen Zhang, Quan Zhou, Hao Zhang
Solidified structure and mechanical properties of Mg97Y2Cu1 alloy reinforced by long period ordered structure with 0-0.3%wt Sr addition were investigated. The results indicate that the addition of Sr ranging from 0.1% to 0.2%, solidified structure of the alloy refines and homogenizes gradually. When...

Characterization of electronic structures and spectral properties of the emitting material molecule Cu(I) complexes containing fluorene moiety: a DFT/TDDFT study

Rongfeng Zhong, Hongying Xia, Feng Zhao
Copper (I) complexes comprise an important class of luminescent materials in organic light emitting diodes (OLED). A Cu(I) complexes, [Cu(POP)(fluPy-Imidazole)]+ (1), where fluPy-imidazole = 2-(4,5-dihydro-1H-imidazol-2-yl)-5-(9H-fluoren-2-yl)pyridine, POP= bis[2-diphenylphosphino]-phenyl]ether, was...

Comparison on Properties of 3 Anti-corrosive Coating Materials for Outer Protection to Buried Metal Pipe

Yanhua Chen, Shuo Wang, Linlin Liu, Le Wang, Jiannan Li
This paper describes an investigation of properties of 3 ACCMs, including cathodic disbonding, hot water dipping in, shear strength and bonding characteristic. According to standards of oil and gas pipeline, some experiments are carried to determine these characteristics. From these experimental results,...

Microwave-Assisted Synthesis of Ethyl 4-Hydroxy-3-ethoxycinnamate Through A Catalytic Pathway Utilizing Cationic Exchange Resin

Shengzhao Gong, Menyi Xu, Aijuan Feng, Yan Liu
Ethyl 4-hydroxy-3-methoxycinnamate was synthesized by reaction of ethanol and 4-hydroxy-3- methoxycinnamic acid using an efficient cation-exchange resin as catalyst under microwave irradiation. The catalyst activity was investigate by single factor experiments. The reaction conditions - amount of catalyst,...

Electroless Ni-P-TiO2/Ni-P-SiC Composite Coating’s Corrosion Resistances on Mg2B2O5w/AZ91D Magnesium Matrix Composites

Xiaomin Wang, Peiqing La, Hailian Chao, Hui Nan
Ni-P, Ni-P-TiO2 and Ni-P-SiC composite coatings on AZ91D magnesium matrix composite were prepared by the electroless composite depositing. The surface morphology of the coatings was observed by scanning electronic microscopy(SEM) and electron probe X-ray microanalyser(EPMA). The corrosion resistance...

Research on the Influence of Powder and Its Surface Modification to the Flame Retardant, Electric Performance and Mechanical Properties of Silicone Potting Material

Jianyun He, Ruoyun Wang, Xianchun Ye, Xia Tang, Weijia Kang, Weimin Yang, Hong He
A silicone resin as base material, composite powder as filler, and the electronic potting silicone material was prepared using a silane coupling agent -3(trimethylsilyl) propyl methacrylate (KH-570) to do surface treatment. The influence of surface modification and its amount on the flame retardant,...

Research and Development of Strain Clamp and Connecting Tube of 1520mm2 Large-section Conductor

Kuan-Jun Zhu, Jia-Jun Si, Hai-Jun Niu, Jun Zhang, Sheng-Chun Liu, Bao-Dong Sun, Feng Zhang
±1100kV Ultra-high Voltage DC Engineering will adopt JL1X/G2A-1520/125-481 large-section aluminum twisted line of steel core, 1520 mm2 large-section aluminum twisted line of steel core is of four-layer structure and has the same aluminum strand layers of 900 mm2 and 1000 mm2 large-section aluminum twisted...

Synthesis, self-assembly and electrochemical behavior of disulphide derivatised mesoporphyrin on gold electrodes

Shichao Xu, Zhendong Zhao, Bingcheng Hu
Disulphide derivatised mesoporphyrin (DSDMP) and its cobalt complex Co(II)DSDMP were conveniently synthesized and successfully immobilized onto gold surface by monolayer self-assembly of disulfide. The modified electrode was characterized by Infrared Spectrometer (IR) and X-ray photoelectron spectroscopy...

The optical properties of Al doped zinc oxide films

Hongxia Dai
the functional film is the development and application of nanotechnology, along with the development of computer, semiconductor, solar energy and other industries, a related functional materials -- transparent conductive oxide thin films produced, developed, researching on ZnO: Al ZnO films doped with...

Mass proportional damping in nonlinear time-history analysis

Xiaoming Chen, Jin Duan, Yungui Li
Rayleigh damping is the main form in direct integral method for structural nonlinear dynamic analysis under seismic wave. As stiffness proportional damping usually should be neglected for its significant influence on limit time increment, reasonable mass proportional damping becomes more important in...

Progress in application on the prediction of rolling bearing performances for urban rail and traffic engineering

Xin-Tao Xia, Shu-Jing Dong, Yuan-Yuan Qin
At present, an unprecedented development situation of the urban rail and traffic engineering is presented. Bearing as a key component of vehicle operation safety, its performances and reliability should achieve higher requirements. Because the number of characteristic data of bearing performances is...

Research on the Implementation of In-House Calibration in Automotive Testing Laboratory

Shimin Zhang, Lixiong Zhang
In order to ensure the traceability of the instruments for automotive testing laboratory, the article describes the necessity and significance of in-house calibration in automotive testing laboratory, according to the CNAS- CL31 " Requirements for In-house Calibration " proposed five important aspects...

Research on the test of CTOD specimen of short fatigue crack of Q370qE welded seam

Qiming Yu, Feng Zhou, Zhi Zhang
This paper experimentally study the process and characteristics of the bridge structure steel CTOD specimens weld seam fatigue crack prefabricated. The results provide an experimental base and computing foundations for the bridge This paper studies the CTOD (Crack tip opening displacement) fatigue precracking...

Structure Design and Movement Simulation of Bipedal Robot

Liandong Lei, Guiping Lu
Biped walking robot is designed based on the principle of bionicswhich can walk like a human.The biped robot can replace the prosthesis for the disabled, and it can also make the robot better to complete the dangerous or high-intensity work. This robot not only has characteristics of simple structure,...

FTIR Study of Chemical Modification of Tellurium Oxide Nanoparticles by Dicarboxyl Amino Acids

Weilong Chen, Yan Bai
The modification and modulation of dicarboxylic amino acids on tellurium oxide nanoparticles (TeO2NPs) were investigated by Fourier transform infrared spectroscopy. The TeO2NPs prepared in aspartic acid (Asp) or glutamic acid (Glu) were spheres with main size distribution of 30-80 nm. TeO2NPs were bound...

Diagnosis and Analysis of Uncertain Information based on Probability-box

Yan Jun Liu, Qing Xin Wang, Jia Man Ding
The fault information always contains many uncertain, such as the missing information, malfunction and failure to operation. In this paper, we use a new method based on probability-box theory and support vector machine to solve the uncertain problems and improve the diagnosis ability. The first, structural...

The research on fatigue test of the pin for the folded arm lorry crane

Hong-Feng Ma, Zheng-Wen Yuan, Le Gao
Based on the structure mechanics analysis and fatigue mechanism study for the pin of the folded arm lorry crane, a new fatigue test equipment for the pin of the folded arm lorry crane is developed. The pins are quenched in different hardened layer depth ratio, and then 48 pins are chosen for the fatigue...

A Big data dynamic migration strategy

Jin Fang Zhang, Qing Xin Wang, Jia Man Ding
In the face of the current resource scheduling using the static load balancing strategy in cloud computing environment could easily lead to the waste of resource, the paper put forward a migration strategy based on the big data migration. The strategy will compare the current load conditions, and choose...

Effect of Water on the Critical Surface Tension of Coal

Jun Wang
In order to improve the effect of water injection and dust prevention in coal seam, the wetting process with water in coal was described in this paper. The coal surface tensions with six different aqueous solutions were measured and the contact angle of coal samples from Zhaozhuang Mine was tested. The...

Experimental and numerical investigation on the performance of hydrodynamic cavitation in multi-holes orifice plate

Changhao Ji, Zhixia He, Yuhang Zhixia
The multi-holes orifice plate are simple hydrodynamic devices which can be used for intensification of liquid-liquid heterogeneous micro-mixture for preparing bio-diesel or emulsified diesel. In this study,a flow visualization experiment system with a transparent hydrodynamic cavitation reactor was setup...

Analyze on User-Centered Design of Small Medical Products

Lili Liu, Yao Yao
This article from the small medical products research status quo of humanized design for the starting point of design, We analysis the relevant factors of humanized design, including the user characteristic model, user behavior model, interface model and environmental characteristic model and than analyze...

Design and Application on the Composite Rail of Column-Beams in Gantry Machine

Hua Lu, Dewei Tang
Column - crossbar rail is the heart of the Moving beams CNC gantry machine which is now widely used in Machinery manufacturing. Whether the structure is rational directly affects the dynamic performance of the whole machine and machining accuracy. The traditional slide, linear rolling and hydrostatic...

Effect of Assembly Condition on Dynamic Performance of C/C Composite Finger Seal

Li'Na Wang, Guoding Chen, Hua Su, Guangmei Yang, Yanchao Zhang
The performance of finger seal as an important component has decisive influence on performance of aeroengine. The complicated operating state of aeroengine, such as assembly condition, also has important influence on finger seal performance. However, equivalent dynamic model has not considered this factor,...

Research on Time-Frequency Characteristics of Infrasound Information before rock Failure under Compression

Hong Xu, Tingqiang Zhou
Six group of axial compression tests of sandstone were conducted in laboratory, and the infrasound signals of each test process were recorded synchronously then the time-frequency characteristics of all signals have been analyzed to find the failure precursor information, the results show that: The infrasound...

Abundance and distribution of trace elements in Mengjiawan coal from Shaanxi, China

Hua Wang, Meili Du, Guotao Zhang
The abundance of one major and eight trace elements in 215 coal samples from the Mengjiawan exploration area, northern Shaanxi, China, were determined. As compared with Chinese coal, American coal and coal Clarke value, only Th content in the Mengjiawan coal is high. The abundance of the element is different...

Surface Roughness Intelligent Prediction on Grinding

Dingtong Zhang, Ning Ding
Grinding is generally the final process, and it is closely related with the surface quality of the component. Now, it’s difficult to measure the surface roughness until the grinding process is finished. The purpose of this research was to study the roughness prediction and avoid the defect happening...

Design and Application of Vibrator Drived by Piezoelectric Stack Based on Low Frequency Vibration Cutting

Fanxia Kong
A new vibration cutting device was presented in the paper to offer much high power and high rigidity for the unstable vibration parameters, bad compliance between practical and theory which produced while using conventional vibration cutting equipment. Detailed calculation and structure design were carried...

Discussion on the information security mechanism of manufacturing industry

Tao Qin
For the modern intelligent manufacturing enterprises, the information security has a direct impact on the normal operation and long-term development of the enterprise. This is the problem which the enterprise should pay attention to it. How to construct information security and protect the core information...

the design of hand &box seedcase cutter

Yan Huang Xiao, Bo Liu, Yue Wang
Based upon existing instruments have some disadvantages in both ways, one hand is simple structure, single function ,not work, difficult to cut, cannot cut completely or unsafe issues;on the other hand is complex structure, equipped with gear-down mechanism ,high manufacturing cost, bad price/ performance...

The Study For Anti-Rollover Performance Based On Fishhook and J Turn Simulation

Fei Xiong, Fengchong Lan, Jiqing Chen, Yunjiao Zhou
SUV (Sport UtilityVehicle, SUV) HCG (Height of Center Gravity) is higher, relatively low rollover stability, higher rollover accident rate has become an important issue for cars safety. In this paper, Firstly, four-DOF kinematics theoretical vehicle model was established then combined with a SUV development...

Deter mination of Hg2+ using a glassy carbon electrode modified with [ZnSO4{ZnCl2(u-S-CH2CH2NH2}]n

Xugang Shu, Chunli Wu, Liewen Liao, Xinhua Zhou, Xin Wu, Yulong Yin
An electrochemistry sensor composed of glass carbon electrode modified with [ZnSO4{ZnCl2(u-S-CH2CH2NH2}]n was used for the determination of mercury(II) ions with differential pulse voltammetry(DPV) in 0.1mol/L KCl solutions. The proposed electrochemistry sensor had good operating characteristics towards...

Studies on the Chemical Constituents of Cinnamomum camphora

Lei Jin, Yongdong Luo, Li Zhang, Shanshan Zhang, Yongming Luo
From Cinnamomum camphora, ten compounds were isolated and identified as 4-hydroxysesamin (1), 3,3 -dihydroxy-4,4 -dimethoxytetrahydrofuran lignanoid (2), 3, 4- methylenedioxyphenyl-3 ,9-dihydroxy-4 -methoxy- tetrahydrofuran lignanoid (3), lyoniresinol (4) , (+)-3 -(3, 4 – methylenedioxyphenyl)- 1,2-...

Research the Orem Self-care Theory on the Aged Patients with Acute Myocardial Infarction

Xueyan Chen, Ling Gong, Liping Pan
Purpose In order to help the aged acute myocardial infarction (AMI) patients to take an active part in disease assessment, monitoring, treatment and improve the compliance, the AMI patients can relieve their somatic symptoms effectively, and at meanwhile, the incidence of complications can also be reduced.Method...

Numerical Simulation for Coupled Heat and Moisture Transfer in Building Material

Bing Zhang, Zhongqing Cheng, Liang Zhang
Based on analyzing the mechanism of coupled heat and moisture transfer in building material, this paper takes temperature and moisture potential as driving force. We constructed the model of coupled heat and moisture transfer in building material, solved this model and got the analytical solutions for...

Simultaneous Determination of Synthetic Colorants in Pickles and Sauerkrauts by HPLC-MS

Pei Yao, Shubai Li, Yuan Liu, Qimeng Zhang
The Objective of this paper is to establish a method for determination of six synthetic colorants (sunset yellow, tartrazine, amaranth, carmine, allura red, brilliant blue)in pickles and sauerkrauts. The samples were adsorbed by polyamide then desorbed by aqueous alkali. After purified and extracted,...

Research on the Early Strength Agent Effect on the Fatigue Performance of Cement Stabilized Macadam

Jie Yang
Strength of cement stabilized macadam which added early strength agent improves quickly. This shortens the construction period of road maintenance. This study explores the difference of fatigue performance between the cement stabilized macadam which added early strength agent and the ordinary cement...

Yanfeng calcined dolomite two-step preparation of calcium magnesium sand

Wangnian Zhang, Ning Deng, Weijie Liang, Lili Peng, Xin Zhao
In this paper the influence of beforehand condition and sinter degree to capability of sintered dolomite has been investigated by means of measure actived degree and capability of high temperature sintered and property of resist hydrate of different material granularity after different beforehand sinter...

The Research and its Significance of the Sedimentary Facies Feature of the KBM Oilfield East Area

Youkui Feng
The complex oil-water relation of study area related to sedimentary facies. But the unconformity resulted from frequent tectonic movements puzzled the study of sedimentary facies. Based on the detailed study on the cored wells, the main identification marks of sedimentary facies have been analyzed via...