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The Progress of Environmental Risk Management Ying Wang1, a, Junsheng Hu1,b and Yinping Zhao1,c 1Municipal & Environment Engineering College, Shenyang Jianzhu University, China awangyingiii@126.com, bjunsheng.hu@163.com, c825670047@qq.com Keywords: Environmental Risk Management, Environmental Risk Assessment, Current Situation.
These methods have some common key elements: the problem formation stage, the participation and communication of stakeholders, quantitative risk assessment, repetition and evaluation, based on reliable information to make decisions, as well as flexibility and adaptability of the method.
Besides we should also pay attention to the international development of new areas, provide enough resources in terms of manpower, financial and material resources, and strengthen construction of relevant departments at all levels of ability and cooperation.
Companies should take the initiative to assume the important responsibility in risk management and implement environment risk management related work; Relevant government departments ought to have a clear responsibility, complete the job of enterprise's monitoring and coordination between enterprises and the masses; finally we must raise the public's right to know, establish a major environmental risk engineering and risk potential announcement system, and strengthen publicity and education of masses’ self-protection awareness and protective ability in emergency environmental accidents.

Either considering from the material or energy, it will cause a lager waste.
Proper oil viscosity is the key to ensure that the engine well lubricated [7].
Corresponding Author Hailin Wang, E-mail: hlwang@scau.edu.cn, Mobile phone: (+86) 13380019763 References [1] Shuzhen Liu, Hongrui Fu: Lubricating Oil Vol. 25(2010), p. 18 [2] Fazheng Zheng, Feng Xie: Beijing: China Petrochemical Press, (2006) [3] Gang Li, Ming Chen and Chunhui Liu et al: Lubrication Engineering Vol. 2 (1998), p. 33 [4] Jiarui Chen, Tianfei Ma: Beijing: China Communications Press, (2005) [5] Xinhua Yuan: Diesel Locomotives Vol. 2 (1988), p. 68 [6] Chaozhong Wang, Penghui Zhang: Lubrication Engineering Vol. 2 (2003), p. 64 [7] Bin Li, Yonggang Shi and Guoxu Chen et al: Lubricating Oil Vol. 25(2010), p. 20 [8] Tao Tang: South China Agricultural University (2012), p. 35

Quality and Safety Warning of Edible Forest Products based on Gray Forecast Model Peng Zhang1, 2, Zhen Liu3, Zhongsu Ma1 1School of Biological and Agricultural Engineering, Jilin University, Changchun, Jilin, China 130025 2Forestry College, Beihua University, Jilin, 132013 3Jilin Forestry Survey and Planning Institute, Jilin, 132013 Keywords: Edible forest products; Warning; Gray system; GM (1, 1) model Abstract.
China's food security early warning system is still in the primary stage of the study: Kui Yu Kai [1] uses the three-tier structure of the BP neural network, food and special equipment to monitor the key indicators for the input layer, and take the safety of food and special equipment state level as the output layer, to establish the food security early warning systems and special equipment.
Test Material.
Systems Engineering Theory and Practice, 2010, 30 (6): 1125 - 1131 [3] Deng Julong.

Blast Vibration Response of Tunnel Influenced by Confining Pressure and Surrounding Rock Type TAO Tie-jun, Xie Chun-ming, CHI En-an, ZHAO Ming-sheng Guizhou Xinlian Blasting Engineering Group Co.
The research of the influence of geological and engineering factors on the stability of surrounding rock has made more progress at home and abroad, and the research of influence of blasting vibration on the safety of surrounding rock is still in its infancy.
Using high-performance explosive material MAT_HIGH_EXPLOSIVE_BURN of ANSYS/LS-DYNA simulates the explosive.
SY2010365), Key Industrial Research Project Supported by Science Technology Department of Guizhou Province (No. (2013) 3013) and Guizhou Province Outstanding Young Scientific Talents Training Program Funded Projects (No. (2013) 30).

Research on Near Field Acoustic Characteristic of a Compound Structure with Plate & Cylindrical Hull Subjected to Sound Excitation JIA Di1,a, KANG Feng-hui2,b, WANG Yi-na3,c 192537 Unit of People’s Liberation Army, Beijing, China 100007 2 College of Shipbuilding Engineering, Harbin Engineering University, Harbin, China, 150001 3 Luoyang ship material research institute, Luoyang, China, 471023 a jackyjiadi@163.com; byingmuakang@yahoo.com.cn；cyinaanyang@163.com Key words: Sonar platform; A compound structure with plates & a cylindrical shell; Near-field acoustic characteristic; Sound field distribution; Sound wave frequency; Incident angle Abstract.

Pant2 1Aeronautical Engineering Department, SardarVallabhbhai Institute of Technology, Vasad, Anand, India 2Aerospace Engineering Department, Indian Institute of Technology Bombay, Mumbai, India E-mail: aksaerospace@gmail.com, rkpant@aero.iitb.ac.in Keywords: Aerostat, blowby, conventional aerostat, lighter than air systems Abstract—An aerostat is a tethered balloon with an aerodynamically shaped envelope containing a lighter-than-air gas that generates bulk of the lifting force.
Operating requirements Parameter Value Payload carrying capacity 10 kg Altitude of operation 3050 m AMSL Height 100 m AGL Operating Wind condition 25 m/s Operating Temperature -250 C to 250C The values of some key parameters for both the types of aerostats are listed in Table 2.The winged aerostat is seen to be nearly 50% smaller in geometric dimensions, and nearly double to 1.5 times lower loss in operating altitude due to blowby.
S., "Course Material forDesign & Development of Lighter-Than-Air Systems", LTA Systems Laboratory, Aerospace EngineeringDepartment, IIT Bombay, June 2010

.,19 2Russian State Vocational Professional University, Physics and mathematics chamber, 620012 Russia, Yekaterinburg, Mashinostroiteley 11 3Ural State Forest Engineering University, Physical and chemical technologies of biosphere protection chamber, 620038, Yekaterinburg, Siberian tract, 37 airi-matushkina@yandex.ru, bsergej.anahov@rsvpu.ru, cyappoligon@mail.ru Keywords: plasmatron, design, welding seems, heat-affected zone, impact elasticity, static curve, destruction, quality, efficiency.
Introduction Modern russian plasma torches for cutting metals for the majority of key indicators are inferior to the products of leading foreign manufacturers.
At the second stage, when analyzing the qualitative parameters of the edges of the cutting surfaces in accordance with the requirements of GOST 14792 and DIN EN ISO 9013-2003 and the mechanical testing of welds obtained from blanks prepared in the process of cutting torches and mechanical means the corresponding parameters were evaluated in the laboratories of Institute of Engineering Science (Ural Branch of the Russian Academy of Sciences) SverdNIIChimmash, URALMASHPLANT (Uralmash Machine-Building Corporation).
Narrow Jet Plasma as the Energy Efficient and Safe Technology for Metal Cutting, Solid State Phenomena (Material Science Forum). 870 (2016) 523-527

The use of a combustion reaction to synthesize a refractory material was first considered by Walton and Poulos [23] who produced cermet materials using termite reactions.
A wide variety of materials have been produced by this method including carbides [27,28], borides, [25-29], nitrides [30-32], intermetallics [33,34], and composite materials [35].
The AlN powder thus obtained has been tested for application as a filler for composite materials [60].
Patent 4,172,754. (1979) [18] L.Maya: Advanced Ceramic Materials Vol. 1 (1986), p. 150
Kingman, in: Combustion and Plasma synthesis of High-Temperature Materials, edited by Z.

Key Engineering Materials. 753 (2017) 326-330. https://doi.org/10.4028/www.scientific.net/KEM.753.326
Luis Zerbino, Influence of Natural Coarse Aggregate Type on the Transport Properties of Recycled Concrete, Journal of Materials in Civil Engineering. 26 (6) (2013). https://doi.org/10.1061/(ASCE)MT.1943-5533.0000910
Muthukannan, Expanded Fly Ash Clay Aggregate a Sustainable Alternative Coarse Aggregate for Concrete, Journal of Materials and Engineering Structures. 5 (4) (2018) 347–353
Setunge, Constitutive model for confined high strength concrete subjected to cyclic loading, Journal of Materials in Civil Engineering. 16 (4) (2004) 297-305. https://doi.org/10.1061/(ASCE)0899-1561(2004)16:4(297)
Chang-Hoon, Compressive Behavior and Mechanical Characteristics and Their Application to Stress-Strain Relationship of Steel Fiber-Reinforced Reactive Powder Concrete, Advances in Materials Science and Engineering.

School of Mechanical Engineering, Harbin Institute of Technology Shenzhen Graduate School, 518000, China 2.
Introduction When developing new dental restorative materials, manufacturers must be able to predict the properties of new materials and their performance in the oral environment.
Also, dental materials are tested to predict the wear performance of new materials before launching to a competitive market [44].
Dental Materials, 2006. 22(8): p. 712-734
'A parallel robot to test dental components and materials'.