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Online since: January 2011
Authors: Jian Liang Peng
Design and Development of Warehouse Management System
of Inland River Port
Jianliang Peng
College of Computer Science and Information Engineering, Zhejiang Gongshang University, Hangzhou, China
jlpeng2007@126.com
Keywords: warehouse management system; inland river port; design; personalized
Abstract.
In addition to a large yard storage areas, but also indoor warehouse built nearly 30 million square meters for production and trading of office space, it is the ideal logistics base for storage and processing to the business of steel, building materials (glass, ceramics), timber, chemical raw materials and others.
In order to optimize the business process of CX port Co., Ltd. to enable them to better operation processing and improve efficiency of management, it is necessary to draw the flowchart of the following key business processes.
Shen: Logistics & Material Handling (August 2006), p. 35-38 [7] Y.L.
In addition to a large yard storage areas, but also indoor warehouse built nearly 30 million square meters for production and trading of office space, it is the ideal logistics base for storage and processing to the business of steel, building materials (glass, ceramics), timber, chemical raw materials and others.
In order to optimize the business process of CX port Co., Ltd. to enable them to better operation processing and improve efficiency of management, it is necessary to draw the flowchart of the following key business processes.
Shen: Logistics & Material Handling (August 2006), p. 35-38 [7] Y.L.
Online since: October 2016
Authors: Bradley P. Wynne, Rene Cerda-Rojas, Rafael D. Mercado-Solis, Edgar Ivan Saldana-Garza
Wynne1,b, Rene Cerda-Rojas2,c
and Rafael David Mercado-Solis3,d
1Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin St, Sheffield S1 3JD, UK
2FRISA, Valentín G.
A key manufacturing step that can have a significant influence on property variability is cooling rate variation with the component during quenching.
Typical specification requirements for the selected material are: yield strength ranging from 758 to 896 MPa; minimum ultimate tensile strength of 903 MPa minimum; an average CVN Impact energy of 42 J average with no test less than 28 J.
Kumar, Coupled Analysis of Surface Heat Flux,Microstructure Evolution, and Hardness during Immersion Quenching of a Medium Carbon Steel in Plant Conditions, Materials Performance and Characterization. 1 (2012)
A key manufacturing step that can have a significant influence on property variability is cooling rate variation with the component during quenching.
Typical specification requirements for the selected material are: yield strength ranging from 758 to 896 MPa; minimum ultimate tensile strength of 903 MPa minimum; an average CVN Impact energy of 42 J average with no test less than 28 J.
Kumar, Coupled Analysis of Surface Heat Flux,Microstructure Evolution, and Hardness during Immersion Quenching of a Medium Carbon Steel in Plant Conditions, Materials Performance and Characterization. 1 (2012)
Online since: March 2021
Authors: Suat Hian Tan, Zhe Cheng Ng, Siti Hamidah Radiyah Shiekh Mahmud
The use of waste material had been formulated as an alternative for plant cultivation [8].
In this study, the key finding of this experiment is to assess the effects of different type of cytokinins which were BAP and Kinetin in different concentration with combination of waste coconut water and sucrose on enhancing the in vitro multiplication of H. polyrhizus.
Experimental Details Plant materials.
Mahmmod, Effect of precursors on flavonoid production in pegaga cell suspension cultures, Malaysian Technical Universities Conference on Engineering & Technology (MUCET) (2013) [6] M.
Ma, Preliminary study on micropropagation of Hylocereus polyrhizus with waste coconut water and sucrose, Materials Science Forum, 981(2019) 316-321
In this study, the key finding of this experiment is to assess the effects of different type of cytokinins which were BAP and Kinetin in different concentration with combination of waste coconut water and sucrose on enhancing the in vitro multiplication of H. polyrhizus.
Experimental Details Plant materials.
Mahmmod, Effect of precursors on flavonoid production in pegaga cell suspension cultures, Malaysian Technical Universities Conference on Engineering & Technology (MUCET) (2013) [6] M.
Ma, Preliminary study on micropropagation of Hylocereus polyrhizus with waste coconut water and sucrose, Materials Science Forum, 981(2019) 316-321
Online since: September 2013
Authors: Jun Hui Li, Heng Jia Zhang
Effect of Limited Water Supply on Photosynthetic Characteristics of Spring Maize (Zea Mays)
Hengjia Zhang a and Junhui Li*b
Department of Water Resources Engineering, Gansu Agricultural University, Lanzhou 730070, China
azhanghj@gsau.edu.cn, bzhangbuchong@hotmail.com
Keywords: Limited water supply, Leaf area duration, Relative growth rate, Crop growth rate, Above-ground biomass, spring maize
Abstract.
Introduction Improving canopy photosynthetic properties related to dry matter production was the key to yield increase in maize [1], and the total leaf area duration within maize growing season was over 375×104 m2 d ha-1 [2].
However, as important materials for photosynthesis, soil water status directly affects crop photosynthetic properties and biomass.
Materials and Methods Study site description.
Study on relationship between crown canopy of different populations of compact type corn and their material production.
Introduction Improving canopy photosynthetic properties related to dry matter production was the key to yield increase in maize [1], and the total leaf area duration within maize growing season was over 375×104 m2 d ha-1 [2].
However, as important materials for photosynthesis, soil water status directly affects crop photosynthetic properties and biomass.
Materials and Methods Study site description.
Study on relationship between crown canopy of different populations of compact type corn and their material production.
Online since: October 2014
Authors: Romeo Glovnea, Xing Nan Zhang, Karolina Jablonka
Experimental Rig for Measuring Lubricant Film Thickness in Rolling Bearings
ZHANG Xingnan1, a, JABLONKA Karolina2, band GLOVNEA Romeo1, c*
1Department of Engineering and Design, University of Sussex, United Kingdom
2AC2T research GmbH, Viktor Kaplan-Straße 2D, 2700 Wiener Neustadt, Austria
aXingnan.Zhang@sussex.ac.uk,cR.P.Glovnea@sussex.ac.uk
Keywords:rolling bearings, elastohydrodynamic, film thickness, capacitance.
Lubrication also plays a key role in the contact fatigue failure of rolling bearings thus evaluation of the lubrication regime and the lubricant film thickness in conditions as close as possible to those in operation, are needed.
This is because it requires that one of the bodies is a flat disc and it is made out of a transparent material.
The implications of these requirements are that the true geometry of the contact of rolling bearings and the combination of materials in bearings cannot be reproduced.
The material of the cage is electrically insulating in order to isolate completely the desired ball.
Lubrication also plays a key role in the contact fatigue failure of rolling bearings thus evaluation of the lubrication regime and the lubricant film thickness in conditions as close as possible to those in operation, are needed.
This is because it requires that one of the bodies is a flat disc and it is made out of a transparent material.
The implications of these requirements are that the true geometry of the contact of rolling bearings and the combination of materials in bearings cannot be reproduced.
The material of the cage is electrically insulating in order to isolate completely the desired ball.
Online since: June 2017
Authors: Lu Wang, Yu Ping Zhang, Yong Hua Shen, Huan Wu Cheng, Wei Wei Chen
Preparation of Continuous Al2O3/Y2O3 Coating on Carbon Fiber by a Novel Aqueous Plasma Electrolysis
Yuping Zhanga, Yonghua Shenb, Weiwei Chenc*, Huanwu Chengd
and Lu Wange
Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
astu_zhangyuping@126.com, bshenyh1990@163.com, cwwchen@bit.edu.cn, dchenghuanwu@bit.edu.cn, ewanglu@bit.edu.cn
Keywords: Plasma electrolysis, Carbon fiber, Al2O3/Y2O3 coating, Oxidation resistance.
Introduction As one of the most promising materials in the 21st century, carbon fiber has been widely applied in civil, industrial, and aerospace fields due to its high modulus, low density, low coefficient of thermal expansion and high strength-to-weight ratio [1-4].
The cathodic plasma arc zone is the key to successfully deposit Al2O3/Y2O3 ceramic coating.
The mass loss was occurred due to the removal of sizing material from bare carbon fiber and the evaporation of moisture and solvent from coated sample.
Introduction As one of the most promising materials in the 21st century, carbon fiber has been widely applied in civil, industrial, and aerospace fields due to its high modulus, low density, low coefficient of thermal expansion and high strength-to-weight ratio [1-4].
The cathodic plasma arc zone is the key to successfully deposit Al2O3/Y2O3 ceramic coating.
The mass loss was occurred due to the removal of sizing material from bare carbon fiber and the evaporation of moisture and solvent from coated sample.
Online since: August 2013
Authors: Yi Qi, Jian Cheng Wan, Jun Hui Li, Xiao Ming Rui
Introduction
Overhead conductor is an important part of the power transmission line and is the carrier of electric power, whose safety is a key factor to ensure stable operation of the power transmission line.
Exterior factors consist of environment conditions, tension force and operation temperature of conductor etc, interior factors consist of material composition, metal structure, geometrical structure, production process etc.
Tab.1 Creep equation and creep ratio Tension force /kN Creep rate equation Creep rate /% 1 000 h 10 years 30 years 33.92(15%RTS) 0.0038T0.2013 0.0153 0.0376 0.0469 56.54(25%RTS) 0.0062T0.2006 0.0248 0.0608 0.0758 90.46(40%RTS) 0.0103T0.1988 0.0407 0.0989 0.1231 Fig. 2 JL/G3A-1000/45-72/7 creep characteristic curves Raw materials and production process of different manufacturers are difference, creep rate of the manufactured conductor with same specification is different, even creep rate of same conductor in different lot manufactured by same manufacturer is different.
Conclusions 1) Carry out test on creep characterisitics of 1000 mm2 large section conductor manufactured by many manufacturers, test results show there is certain difference on creep rate of 1000mm2 conductor manufactured by different manufacturer because of difference of production process and raw materials. 2) Temperature reduction value of 1000 mm2 large section conductor takes 30℃ during stringing construction.
Design manual of high voltage power transmission line in power engineering [R].
Exterior factors consist of environment conditions, tension force and operation temperature of conductor etc, interior factors consist of material composition, metal structure, geometrical structure, production process etc.
Tab.1 Creep equation and creep ratio Tension force /kN Creep rate equation Creep rate /% 1 000 h 10 years 30 years 33.92(15%RTS) 0.0038T0.2013 0.0153 0.0376 0.0469 56.54(25%RTS) 0.0062T0.2006 0.0248 0.0608 0.0758 90.46(40%RTS) 0.0103T0.1988 0.0407 0.0989 0.1231 Fig. 2 JL/G3A-1000/45-72/7 creep characteristic curves Raw materials and production process of different manufacturers are difference, creep rate of the manufactured conductor with same specification is different, even creep rate of same conductor in different lot manufactured by same manufacturer is different.
Conclusions 1) Carry out test on creep characterisitics of 1000 mm2 large section conductor manufactured by many manufacturers, test results show there is certain difference on creep rate of 1000mm2 conductor manufactured by different manufacturer because of difference of production process and raw materials. 2) Temperature reduction value of 1000 mm2 large section conductor takes 30℃ during stringing construction.
Design manual of high voltage power transmission line in power engineering [R].
Online since: May 2014
Authors: Peter C. Bollada, Peter K. Jimack, Andrew M. Mullis
Towards a 3-Dimensional Phase-Field Model of
Non-Isothermal Alloy Solidification
Andrew M Mullis1,a, Peter C Bollada1,b and Peter K Jimack2,c
1Institute for Materials Research, University of Leeds, Leeds, LS2-9JT, UK.
2School of Computing, University of Leeds, Leeds, LS2-9JT, UK.
Introduction The modelling of dendritic growth is a subject of enduring interest within the metallurgical community, both because dendrites are a prime example of spontaneous pattern formation and because they have a pervasive influence on the engineering properties of metals.
Fife, Physica D 43 (1990) 44. ], in which a non-conserved order parameter f, which encodes the phase state of the material, is defined over the whole domain.
In this paper we describe how advanced numerical techniques can be combined to solve complex multi-scale problems in materials science.
Multigrid is therefore the key ingredient that allows the practical implementation of implicit time stepping and is based upon two principles: the coarse grid principle and the smoothing principle.
Introduction The modelling of dendritic growth is a subject of enduring interest within the metallurgical community, both because dendrites are a prime example of spontaneous pattern formation and because they have a pervasive influence on the engineering properties of metals.
Fife, Physica D 43 (1990) 44. ], in which a non-conserved order parameter f, which encodes the phase state of the material, is defined over the whole domain.
In this paper we describe how advanced numerical techniques can be combined to solve complex multi-scale problems in materials science.
Multigrid is therefore the key ingredient that allows the practical implementation of implicit time stepping and is based upon two principles: the coarse grid principle and the smoothing principle.
Online since: May 2012
Authors: Yong Xin Du, Ya Chang Liu, z.q. SUN
Study on Improving the Safety Training Effect of Safety Control Staff in Highway and Waterway Construction
Zhongqiang Sun1, a, Yongxin Du2,b and Yachang Liu3,c
1School of Environment Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China
2Road & Bridge Company of Hebei Jianshe Construction Group Co.
Training performance evaluation is one of the important constituents in the safety training system; it is also a key link in the training circulation system.
After training, the teacher styles integrating and teaching materials would gave staffs to communication and study in future.
Therefore, the archives would be established according classify, collect, arrange and edit to training material, which would be rational used and updated.
Training archives including all the laws, regulations, documentation and training programs of training; training organization responsibilities and requirements; training syllabus, curriculum standards, training materials; teaching plan, quality analysis results of training; registration forms attendance forms, examination results forms, test papers and so on.
Training performance evaluation is one of the important constituents in the safety training system; it is also a key link in the training circulation system.
After training, the teacher styles integrating and teaching materials would gave staffs to communication and study in future.
Therefore, the archives would be established according classify, collect, arrange and edit to training material, which would be rational used and updated.
Training archives including all the laws, regulations, documentation and training programs of training; training organization responsibilities and requirements; training syllabus, curriculum standards, training materials; teaching plan, quality analysis results of training; registration forms attendance forms, examination results forms, test papers and so on.
Online since: May 2012
Authors: Hui Lin Cao, Jian Ping Chao, Zhi Ling Chen, Bing Kun Wang, Song Wang, Chi Lin
Study on Extraction Technology of the pigment from spinach
Chen zhiling1, Chao jianping 1, Wang Bingkun 2, Cao huilin 2, Wang song 1,
Lin chi1
(1 Dept.of Chemical Engineering, Beijing Institute of Petro-chemical Technology, Beijing 102617, China;
2 China Agricultural University, Beijing 100193, China)
Key words: natural pigment, lutein, supercritical CO2 extraction, microwave assisted extraction, absorbance
Abstract: spinach contains a variety of plant pigments, high lutein content, which makes the research of spinach pigment extracting research special significance.
Study on spinach as raw material of natural plant pigment extraction technology will help to develop nature pigment, especially lutein.
Experimental materials and methods Reagents and instruments Spinach ( Beijing Daxin supermarket ), Ethanol ( A.R, Beijing Chemical Factory ), CO2 gas ( A.R, Beijing chemical Factory), MAS - I type atmospheric pressure microwave assisted synthesis / extraction reactor ( Shanghai Xinyi Microwave Chemical Technology Co.
Ltd. ); DFT-200 type 200g portable high speed traditional Chinese medicine grinder (Dade Medicine Machinery Company Limited, Wenling City, Zhejiang proveince); UV1201- spectrophotometer ( Beijing Ruili Analytical Instrument Company Limited ); HA121-50-02 supercritical extraction device (Nantong Huaan super supercritical extraction company Limited , Jiangsu province ) Experimental methods Raw material preparation: fresh Spinach into electric blast drying oven drying to make its humidity in about 10%, and then was grinded into powder for further using.
Above experimental results show for microwave assisted extraction of spinach pigments, when the material liquid ratio is 1: 20; extraction time 1.5h; extraction temperature: 40 ℃.
Study on spinach as raw material of natural plant pigment extraction technology will help to develop nature pigment, especially lutein.
Experimental materials and methods Reagents and instruments Spinach ( Beijing Daxin supermarket ), Ethanol ( A.R, Beijing Chemical Factory ), CO2 gas ( A.R, Beijing chemical Factory), MAS - I type atmospheric pressure microwave assisted synthesis / extraction reactor ( Shanghai Xinyi Microwave Chemical Technology Co.
Ltd. ); DFT-200 type 200g portable high speed traditional Chinese medicine grinder (Dade Medicine Machinery Company Limited, Wenling City, Zhejiang proveince); UV1201- spectrophotometer ( Beijing Ruili Analytical Instrument Company Limited ); HA121-50-02 supercritical extraction device (Nantong Huaan super supercritical extraction company Limited , Jiangsu province ) Experimental methods Raw material preparation: fresh Spinach into electric blast drying oven drying to make its humidity in about 10%, and then was grinded into powder for further using.
Above experimental results show for microwave assisted extraction of spinach pigments, when the material liquid ratio is 1: 20; extraction time 1.5h; extraction temperature: 40 ℃.