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Study on Treatment and Reuse of Wastewater from Yunnan Huize Pb-Zn Ore Flotation Xiuzhi Chen1, Chunbao Sun1, Hairui Yang1 , Chuanyao Sun2 1School of Civil and Environmental Engineering University of Science and Technology Beijing, Beijing, China 2Institute of Mineral Processing Beijing General Research Institute of Mining and Metallurgy, Beijing, China xiuzhichen@sohu.com Keywords: Flotation wastewater.
Experimental Materials The galena in this experiment is collected from Yunnan Huize Pb-Zn sulfide ore.
With waste water, the recovery rate is always lower than 15% which means some material in the waste water would strongly influence the recovey of galena.
This represents that some material in wastewater affects the recovering process, and affects the recovery rate greatly.
Journal of Wuhan Institute of Technology, 2007, 29(4): pp. 21–23.

Tompkins (2003) stated that 10-30% of material handling cost (MHC) can be reduced by having an effective facility layout.
Most of the time, the shop floor faces several problems (wastes) such as strewn with materials, semi-finished products, work-in-progress (WIP) inventories, tools and bins which result in not enough free space for the operators to move freely, accidents keeps occurring on the shop floor, workers take a lot of time in finding equipments, tools and drawings as a result affects the quality of the product.
Ergonomics is the science of designing the job to fit the employee body than physically forcing the employee body to fit the job (OSHA, 2000).
International Journal of Quality and Reliability Management, 1999, 16 (8): 756-771
Toyota Material Handling: Toyota Production System and What it means for business.

Immobilization of lactase on dialdehyde oxycellulose-coated magnetite nanoparticles Guo Qingqi1, a, Zhang Na2, b and Fang Guizhen3, c 1College of Forestry, Northeast Forestry University, Harbin 150040, China 2College of Food Engineering, Harbin University of Commerce, Harbin 150076, China 3 Key lab of Bio-based Material Science and Technology, Northeast Forestry University, Harbin 150040, China aqingqiguo@126.com, bfoodzhangna@yahoo.com.cn, cFanggz_0@163.com Keywords: dialdehyde oxycellulose-coated magnetite nanoparticles (OCCM); immobilization; lactase Abstract.
Further, the spatial steric hindrances which arise from the high polymer reseau restrain the small molecule material diffusion, maybe result the immobilized enzyme dynamics behavior change and the activity reduce.
Experiment Materials Lactase, Harbin Meihua biotechnology Co.
Journal of Food engineering.

Experimental Materials and Specimens Preparation.
Adachi: accepted to Journal of Materials Science (2006) [3] C.A.

Experimental Study of the Tensile Bond Strength in Concrete Aggregate - Paste Interfacial Transition Zone Chaowu Pei1, a, Yong Yao1,b , Daiguo Chen1,c , Bin Jia 1,d , Lijun He 1,e , Jiuli Zhang1,f 1School of Civil Engineering and Architecture, Southwest University of Science and Technology,Mianyang , Sichuan 621010, China a809304904@qq.com(corresponding author), byy001221@163.com, ccdg-927@163.com, d532870827@qq.com,e897252147@qq.com, f270499428@qq.com Keywords: concrete; aggregate; interfacial transition zone; tensile bond strength.
[2] MA Yiping.Study in Improve the Strength of Cement Past-aggregate Interface[J].Journal of Building Materials.2(1)(1999)29-32
Drying Shrinkage Microcracking in Cement Based Materials[D].

Research on Design Method of Polygonal Roll Pass for Stretch Reduced Seamless Tubes Shengzhi Li1,a, Haiyan Bao1,b, Zhichao Zhang1,c, Yanghua Li2,d, Gongming Long2,e 1 School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243002, China 2 Technical Center, Hengyang Hualing Steel Tube (Group) Co., Ltd., Hengyang 421001, China a lisz55@163.com, bbaohaiyan425@163.com, czzc1028@ahut.edu.cn, dliyh@hysteeltube.com, e longgm@ hysteeltube.com.com Keywords: Seamless steel tube, transverse wall-thickness, inner hexagon, polygonal roll pass, design method Abstract.
Workpiece Material and Interface Friction.
The material of pierced billet is C22, which is equivalent to steel grade 20# in China.
[8] Yin Yuande, Li Shengzhi: Journal of Engineering Graphics, Vol. 27, no.1(2006), p. 13 (in Chinese).

., 100027 Karaganda, Kazakhstan 2Department of Metallurgy, Materials Science and Nanotechnologies, Mechanical Engineering Faculty, Karaganda State Technical University, 56, Mira blvd., 100027 Karaganda, Kazakhstan aeldar.imsc@gmail.com,beldarazbanbayev@yandex.kz, cisaristkz@gmail.com, ddianaisagulova@gmail.com, enurzakarkz@gmail.com, fyermagnurkz@gmail.com, conditernumba1@mail.rug, kstuniver@gmail.comh Keywords: asymmetric rolling, cone-shaped rolls, microstructure, properties, low-carbon steel Abstract.
Table 1 Specification of the rolling mill and rolling and heating conditions Specification Conditions Type Two-high Rolling Asymmetric; Symmetric Motor power 3 [kW] Number of passes 3 Roll dimensions Max. dia. 50 [mm]; Min. dia. 33.3 [mm] Av. dia. [41.65] mm; Body length [105] mm Total reduction 61.7[%] (10 [mm] – - 5 [mm]) Roll material 41Cr4 Heating temperature 900 [°C]; 1000 [°C]; 1100 [°C] Roll surface Notched Specimen turning 180[°] after first pass -180 [°] after second pass Material and methods.
Wroński et al.: Journal of Central South University Vol. 20 (2013), pp. 1443-1455 [10].

The design, raw materials acquisition, production, consumption, tracing service and recycle of low-carbon products form a circle; c) implementation of cleaner production scheme.
Enterprises should, in line with their own strength and product attributes, build a distribution network of low-carbon products, strengthen low-carbon awareness of distribution members and attach importance to the use and recycle of packing materials and energy conservation in the transport process.
References: [1] Jing Guo: Science and Technology Daily(2010) [2] Xiaolin Liu: China Tourism Daily(2010) [3] Feilun Du: China Economic & Trade Herald(2009)
[4] Zhaozheng Liu: Journal of Party School of the Central Committee of C.P.C (2009)

Experiment Material.
The experimental material was J55 tubing and casing steel, and its chemical composition (mass fraction, %) is shown in Table 1.
Research on crevice corrosion of oilfield materials in saturated CO2 salt solution[D].
Hubei: Huazhong University of Science and Technology, 2008
Journal of Chinese Society for Corrosion and protection, 2007, 27(4): 247-251

There are two kinds of material in inner and outer of the capillary respectively, which have different optical properties.
[1] [2] Fig. 1 Diagram of LIFD system (Details of the component parts can be found in the model of detecting system) Simulation results In order to meet the factual LIFD system, the capillaries in model were composed of two kinds of materials; inner of them was replaceable linear polyacrylamide (LPA) gel [9] which was assumed uniformity and without the fluorescent dye; since the stray light was only the research subject, the filter was taken off in simulation.
Because of the reflection of capillary walls, gel and material of lens, part of the light beam went back through the mirror with a hole to the PMT and was recorded on the observation surface.
Journal of Zhejiang University: Engineering Science.