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Safety analysis of tunnel in gob of high steep thick coal seam (Ⅰ) ——2-D numerical simulation for response of surrounding rock to extraction Wenbin Lu1,2,a, Yimin Wu1,b, Jie Chen3,c, Helin Fu1,d 1School of Civil and Architectural Engineering, Central South University, Changsha 410075,China; 2Hunan Urban Construction College, Changsha 411101,China; 3Tongling Transport Bureau, Tongling 244000, China a luwenbin_csu@163.com,b wuyimin531@163.com,c cjgck0425@163.com,d fuhelin100@sohu.com Keywords: Tunnel in gob of coal seam, high steep coal seam, surrounding rock, impact of mining, numerical simulation.
According to statistics, steep seam coal mine can be accounted about one-sixth of the key national mine, and coal mines with steep seam coal account for almost 40% in the south[1,2].
Figure 2 Schematic diagram of Wusongshan Tunnel through the coal mine (left: plan; right: profile) 2 Numerical simulation plan 2.1 Numerical Model ① numerical simulation software: ANSYS. ② the model range: the left lane of the tunnel axis to make vertical section as analog plane, height from the surface to-400m, height of about 500m; length to self K1 +100 K1 +600, about 500m. ③ element type: SOLID42. ④ material constitutive: D-P model. 2.2 Simulation cases The basis situation of coal seam is listed as following: the range from the surface to -30m level is the early small coal mine, and the mining is unknown; the range of -30m ~-300m level is the Wusong Coal Mines, and the mining plan basically clear.
References [1] Demin Ding, Fengshan Ma, Yamin Zhang, Changxiang Yang and Gaohua Jia: Journal of Mining & Safety Engineering,Vol. 27(02) (2010), p.249-254 [2] Mingli Wang: Coal Mining Technology, Vol.14(03)(2009), p.87-89 [3] Huayang Dai, Jingzhuang Wang, Yonghai Teng, Zhixin Tang: Journal of China Coal Society.
Rock and Soil Mechanics,Vol.26(6)(2005), p.910-914+905 [6] Shuren Wang, Haiqing Zhang, Naiqi Shen, Haiying Cao: Chinese Journal of Rock Mechanics and Engineering, Vol, 28(6) (2009), p, 1144-1151

China. 530022 2Center for Advanced Land Management Information Technologies (CALMIT) University of Nebraska-Lincoln Lincoln, NE 68583-0973 3 Supported by the International Cooperation and Exchange Division, Guangxi Education Department as a visiting scientist working with CALMIT Faculty aE_mali:zhouli5850120@163.com Key words: Grape, Hyperspectral, SVM (Support Vector Machine), Chlorophylls.
Introduction The chlorophyll content of grapevine leaves is a key indicator of physiological status of a plant.
Material and Methods Selected Grape Cultivars Five grape cultivars were investigated as our research: DeChaunac, Edelweiss, Lacrosse, St.Croix, Stpepin.
TRANSACTION OF THE CHINESE SOCIETY OF AGRICULTRAL ENGINEERING, Vol.17, 2001, No:3, 1-6

Seok Kwon, Graphene-based nanoelectronics biosensors, Journal of Industrial and Engineering Chemistry 38 (2016) 13-22
Shi, Graphene-based smart materials.Nature Reviews Materials. 2,9 (2017) 1-13
Ramamurthy, Metal-free, graphene oxide-based tunable soliton and plasmon engineering for biosensing applications.
Journal of Materials Chemistry B. (2021)
Nature materials. 6, 9(2007), 652-655

However, for rate-dependent materials and devices, such as viscous dampers or the recently developed triple friction pendulum isolators, RTHS is essential.
All facing materials are bearing on the top and bottom lumber pieces.
Computer Methods in Applied Mechanics and Engineering. 17/18 (Part 1) (1979) 159-182
EERC-87/09, Earthquake Engineering Research Center, UC-Berkeley, 1987
Earthquake Engineering & Structural Dynamics. 28(4) (1999) 393-420

Performance and Error Analysis for Automatic Measurement Device of Dissolved Oxygen Weilin Li1,a, Zhi Wang1,b, Haiyang Fang1,c, Jianhua Li1,d, Limin Gao2,e, Junbin Ni2,f 1College of Environmental Science and Engineering, Tongji University, Key Laboratory of Yangtze River Water Environment, Shanghai 200092, China 2Shanghai Core Co., Ltd, Core Corporation, Shanghai 201203, China alwlzst@163.com, b89wangzhi@163.com, cfhy0624@126.com, dleejianhua@tongji.edu.cn, egaolm@shcore.com.cn, fnijb@shcore.com.cn Keywords: automatic DO measurement device; performance evaluation; mathematical statistics; error analysis Abstract.
Leather Science and Engineering, 2006,16(3):42-46.
Environmental Engineering, 2002, 20(5): 58-60.
Green luminescent iridium(Ⅲ) complex immobilized in fluoropolymer film as optical oxygen-sensing material[J].

In the late 60s of the last century, when the term mechatronics was coined, it included just mechanical and electrical engineering.
With growing system complexity, computer engineering was unavoidable and welcomed.
Irrespectively of the formal methodology [3], [4], [52], the engineering design process leads to a mathematical optimization problem.
As already mentioned, mechatronic engineering problems are usually continuous or discrete in their parameter space.
References [1] Rainer Nordmann, Mechatronic Systems in Mechanical Engineering I (in German), 3rd ed.

Effects of Surface Pinning, Locking, and Adaption of Twins on the Performance of Magnetic Shape-Memory Alloys Markus Chmielus1,2,3,a and Peter Müllner1,b 1Departement of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, USA 2 Institute for Complex Magnetic Materials, Helmholtz Centre Berlin for Materials and Energy, Hahn-Meitner-Platz 1, 14109 Berlin, Germany 3 Now at: Department of Materials Science and Engineering, Cornell University, 214 Bard Hall, Ithaca, NY 14853-1501, USA amarkuschmielus@cornell.edu, bpetermullner@boisestate.edu Key words: constraints, surface treatment, magnetic shape-memory alloy, single crystal, NiMnGa, Heusler alloy, magneto-mechanical properties, MSMA, FSMA Abstract We study the effect of surface modifications and constraints on the mechanical properties of Ni-Mn-Ga single crystals, which are imposed by (i) structural modifications near the surface, (ii) mounting to a solid surface, and (iii) guiding the stroke.
Pietola in: Proceedings of the 5th International Conference on Engineering Design, Prague, Czech Republic (2006), p. 8
Hannula in: Smart Structure and Materials 2005, Active Materials, Behavior and Mechanics, edited by W.D.
Soffa TMS (The Minerals, Metals & Materials Society), p. 171 (2005)
Kostorz, in: Materials Research Society Symposium Proceedings (Warrendale, USA, Materials Research Society) Vol. 785 (2004), p.

Introduction Energy is a significant material infrastructure on which the human society depends for existence and development.
In the coal sector, China should make every effort to introduce internationally advanced technology with regard to coal clean utilization, such as clean coal technology, coal bed methane, coal chemical engineering and coal liquefaction.
China should conduct international cooperation in the following key fields: new generation nuclear power, solar power, wind power equipment, biomass & biofuel development, new fuel cell technology, and energy-saving buildings.
Journal of Environmental Engineering Technology, 2001, 1(1): 63-71
Journal of Environmental Engineering Technology, 2001, 1(3): 185-196

Nano-scale materials may be defined as having at least one dimension measuring less than 100 nm [1, 2].
On the other hand, in vivo study of ZnPNPs against many investigations such as drug delivery, antibiotic agents, livestock productions, bone tissue engineering, biomedical and biotechnological applications could be future scope of research.
Jesionowski, Zinc oxide—from synthesis to application: a review, Materials 7 (2014) 2833-2881
Suslick, Applications of ultrasound to the synthesis of nanostructured materials, Adv.
Sharma, Biointegration of Medical Implant Materials, in: C.

In all material moments, the objective of divesture of SOEs was to stimulate efficiency, productivity and relieve the state of the huge financial burden they bring.
In all material moments, the objective of divesture of SOEs was to stimulate efficiency, productivity and relieve the state of the huge financial burden they bring [8].
Thus gradually most of them were influenced to adopt Structural Adjustment and Economic Recovery Programs engineered by the World Bank and IMF.
This created a divested SOEs with an ownership structure where the state remained a key or dominant holder (but not majority) competing with highly dispersed individual shareholders for control of the firm.
," International Journal of Construction Engineering and Management, vol. 3, pp. 135-143, 2014