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The hammer bit material is YG8 cemented carbide defined by the keyword “MAT_ELASTIC”.
Therefore the strength and lifetime of the second-row teeth must be ensured when selecting teeth type and teeth materials.
Elias: International Journal of Rock Mechanics and Mining Sciences.
A 3D FEM methodology for the full-scale air hammer bit, teeth and rockcontact analysis.Advanced Materials Research (2011), p. 1425 [9] Zhiqiang Huang, FAN Yong-tao, WEI Zhen-qiang,etc.
Journal of Southwest Petroleum University(Science and Technology Edition), 2010, 32(1): 148-150.

Analysis on the Waste Heat Utilization of Lower Temperature of Steelworks Based on the Theory of Total Energy System Mingrong Han1, a, Longqiang Huang2, b and Jianguo Yin1, c 1School of Metallurgy and Materials Engineering, College of Chongqing Science & Technology, Chongqing 401331, P.R.
Meanwhile, as the short-term stopping run the air volume of main exhauster of the sintering machine cannot generally be turned down by operators, which will cause the material to be overburning.
Acknowledgements This research work is supported by the National Natural Sciences Foundation of China (No.51204221) and the Chongqing Zhide Heating Industry Co., Ltd.
References [1] JIN Hongguang, ZHANG Guoqiang, GAO Lin, LIN Rumou: JOURNAL OF MECHANICAL ENGINEERING.
Vol 143(2011),p.53 [7] Marston C.H: Journal of Engineering for Gas Turbines and Power.

Lolas S and Olatunbosun O.A predicted the reliability of a vehicle at later stages of its life by using artificial neural networks and only information from a first inspection after the vehicle’s prototype production [3].This paper provides analysis method of stiffness reliability for bus body frame. 1 Basic Random Variables of Bus Body Stiffness Reliability Analysis Basic random variables are generally divided into three types: (1) Geometric sizes and material parameters for mechanical properties.
International Journal of Vehicle Design, 2000,24 (2–3):274–286 [2] Popovic P and Ivanovic G.
Strojniski Vestnik-Journal of Mechanical Engineering, 2007,53 (3):173–185 [3] Lolas S and Olatunbosun O A., in: Prediction of vehicle reliability performance using artificial neural networks [J].
Beijing:Science Press,2008

48″900lb full-welded ball valve ultimate bearing capacity optimal design Chunli Mo 1, a, Chen Yong 2,b 1,2,3School of Material Science and Engineering, Shenyang Aerospace University , China aclmo@sau.edu.cn, b chenyong4567601@126.com Keywords: Fully-welded ball valve; Stress linearization; Strength estimation Abstract: Fully-welded ball valve has been applied in large oil and gas pipelines, and its quality is directly related to the safety of the transportation of national energy.
A computational procedure for calculating primary stress for the ASME B&PV code [J].Journal of Pressure Vessel Technology, 116(1994)339-344
ASME Task Group Report on Primary Stress [J].Journal of Pressure Vessel Technology, 119 (1997) 61-67

Manipulator track and driving torque control is an important direction of robotics research, which includes many practical purposes, such as material transportation by scheduled routing at work place, welding machine operation track, robot intelligent follow movement.[1] In all laws of industrial manipulator, PD control is an effective dynamics method which is used extensively in reality.
Acknowledgements This work was financially supported by the Shandong Natural Science Foundation (ZR2011AL014), Reference [1] Hegao Cai: Chinese Journal of Mechanical Engineering, Vol.11 (2000), p. 58
[2] Fuquan Wang: Chinese Journal of Mechanical Engineering, Vol.11 (2000), p. 173

48″600lb full-welded ball valve wall thickness optimal design Chunli Mo 1, a, Xingwei Tang 2,b , Xuming Guo 3,c 1,2,3Department of Material Science and Engineering, University of Shenyang Aerospace, Shenyang, China aclmo@sau.edu.cn, bpowertang@163.com, cguoxuming@sohu.com Keywords: Fully-welded ball valve; Stress linearization; Strength estimation Abstract.Fully-welded ball valve has been applied in large oil and gas pipelines, and its quality is directly related to the safety of the transportation of national energy.
A computational procedure for calculating primary stress for the ASME B&PV code [J].Journal of Pressure Vessel Technology, 116(1994)339-344
ASME Task Group Report on Primary Stress [J].Journal of Pressure Vessel Technology, 119 (1997) 61-67

Introduction Energy is an important material basis for the existence and development of human society.
Liu: Journal of South China University of Technology Vol. 37 (2009), p. 141 (In Chinese)
Zhang: Ludong University Journal(Natural Science Edition) Vol. 2 (209), p. 146 (In Chinese).

Introduction The long-term usage of polymer composite materials in modern construction can be exemplified by basalt fiber-reinforced (BFRP) and glass fiber-reinforced polymer (GFRP) bars which undergo a prolonged exposure to loads, temperature and concrete environment during their exploitation (from 50 to 100 years) [1−3].
A fairly large number of studies are known that investigate individual factors influencing the durability of composite materials.
Material and Methods Materials.
Influence of wood on the photochemical properties, Composites Science and Technology, 68 (2010) 2779
Holdsworth, Long term durability of pultruded polymer composite rebar in concrete environment, Materials & Design 57 (2014) 616-624

This course has received funding from several sources at the School, State and national level (URTP, BEIJ, NMOE, Beijing Science foundation, National Science Foundation), which have provided MUC with several large pieces of equipment, and various smaller equipments and supplies.
As an example, this article only will focus on the materials and methods used to purify SOD.
TABLE I Schedule, Learning objectives and assessment tools Day Laboratory outline Assessment tools Day1-2 Review of protein purification techniques starting materials, buffer selections drawing up a work plan, strategies and schemes of purification with group As an exercise in showing their comprehension of the course material, the students must find an article concerning purification of the protein and then describe how and why they would have purified the protein differently.
Day 3 starting materials preparation Extract preparation Solution preparation Oral examination: every group report their work plan and answer question of instructor about purification protocol and scheme.
Journal of Biology, 24(6): 77-78, (2007) [5] LaRhee.

Khalil1,4,d,* 1Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, 21934, Alexandria, Egypt 2Benha University, Faculty of Science, Chemistry Department, Benha, Egypt 3Lehrstuhl für Technische Chemie II, and Center for Water and Environmental Research (ZWU), Universität Duisburg-Essen, 45141 Essen, Germany 4Environmental and Smart Technology Group, Faculty of Science, Fayoum University, Fayoum 63514, Egypt achriss.muhuwa@ejust.edu.eg, bmohamed.mokhtar@ejust.edu.eg, cmathias.ulbricht@uni-essen.de, dasg05@fayoum.edu.eg.
Among the pool of carbon-based materials [9,14] explored for supercapacitor electrodes, graphene, a two-dimensional carbon allotrope, stands out due to its extraordinary properties, featuring impressive electrical conductivity and a high specific surface area [3].
Chahal: Electrode materials for supercapacitors: A comprehensive review of advancements and performance, J Energy Storage 84 (2024)
Onwualu: Synthesis and characterization of graphene oxide from locally mined graphite flakes and its supercapacitor applications, Results in Materials 7 (2020) 100113
Pan: Mordant inspired wet spinning of graphene fibers for high performance flexible supercapacitors, J. of materials Pubs.Rsc.