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Unknown Offset Free MPC for Buck Converter Li Po1, 2, a *, Liu Ruinan1, 2, b, Ma Xianghui1, 2, c 1Department of Instrumental Electrical Engineering, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China 2Shenzhen Research Institute of Xiamen University, Shenzhen 518063, China alipo@xmu.edu.cn, b19920151153693@stu.xmu.edu.cn, c774898171@qq.com Keywords: Buck converter, Offset free, MPC, Voltage tracking, Parameter identification.
Functionally speaking, the buck converter in CCM mode is commonly used as DC voltage source and keeping the output voltage at the reference value is the key challenge for its control.
However, a rigorous analysis of robustness is needed to accomplish a material data comparison.

Research on Simulation Inspection Detector Lixia Sun1, a, Kaibao Wang1, b, Zhanguo Zhang1, c, Shengyuan Jiang2, d and Jianbo Jia1, e 1College of Mechanical Engineering, Beihua University, Jilin, Jilin Province 132021, China 2School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang Province 150001, China asunlixia.2004@163.com, bwangkaibao@126.com, czzg302104@126.com, djiangshy_2002@163.com, exingxing6453@163.com Keywords: Simulation inspection detector, Hanging system, Differential balancing mechanism, Concrete design Abstract.
The key design of wheel track, wheel base, axle center position and hinged joint position is consistent with the structural dimension parameters of real inspection detector.
High-strength aluminum alloy material is adopted for half axle.

Online Estimation System of Grinding Wheel Status Based on D-S Evidence Theory Guo Bi1, a, Yinbiao Guo1,b , Maojiang Zheng1,c , Jing Lin1,d, Wei Han1,e 1 Unite Laboratory of Micro/nano machining and measuring, School of Physical and Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China) aguobi@xmu.edu.cn, bguoyb@xmu.edu.cn, czhmj2006@163.com, dhuayuye_guojing@163.com, ehanwei_xmu@yahoo.cn Keywords: Grinding Wheel Status Estimation; Precision Grinding; Dempster-Shafer evidence theory; Information Fusion.
Therefore, the key to control ground surface quality automatically is the real-time judgment of the wheel’s life-cycle.
When the specific material removal Vm near 8000mm3/mm in grinding optical plane, the wheel status esimation results are shown in Fig.4.
Feature extraction and selection from acoustic emission signals with an application in grinding wheel condition monitoring, Engineering application of artificial intelligence, 23(2010), p. 74-84

Experimental Method Welding system in this research consists of a transfer-type plasma arc welding torch (100WH, Nippon Steel Welding & Engineering Co.
,Ltd.), a welding power (NW-300ASR, Nippon Steel Welding & Engineering Co.
References [1] John Norrish, Advanced welding process, Woodhead publishing in material, UK, 2006
[9] Jia Chuan-bao, Wu Chuan-song, Zhang Yu-ming, Sensing controlled pulse key-holing condition in plasma arc welding, Trans.

Analysis on Backside Cracks in 316LMod Inner Linings of Urea Reactors Cao Huai-xiang1,2,a, Wang Chun-mao1,b, Qiu Xing-qi2,c 1Shandong Special Equipment Inspection Institute, 939 Tianchen RD,Jinan,250101,PR China 2College of Chemical Engineering, China University of Petroleum, Qingdao,266555,PR China acaohx@163.com (corresponding author), bchunmaowang@163.com, capvshi@upc.edu.cn Key words: stainless steel, 316LMod, backside cracks, stress corrosion cracking (SCC), inner lining, urea reactor Abstract.
On the other hand, synthesis ammonia transformation gas and urea material gas contained H2S and other sulfides in chemical fertilizer plants.
Engineering Failure Analysis.16 (2009) 1432-1441

Agricultural Nonpoint Source Pollution Model Analysis and Application Qing Yang1,a, Shengnan Sun1,b, Zhenghai Jiang 2,c, Lixian Ying1,d, Zhejun Liu2,e 1 College of Engineering, Zhejiang Normal University, 688 Yingbin Road, Jinhua, China 321004 2 Jinhua Haihe Environmental Engineering Co., Ltd., Jinhua, China 321007 ayangq@zjnu.cn, b47558744@qq.com, cjhjzh1389@126.com, d594377615@qq.com, e3909689@qq.com Keywords: Agricultural Non-Point Source Pollution (ANPSP), Model Analysis, 3S Technology Abstract.
The uncertainty analysis will be the key of the non-point source model.
Our country's non-point source model study is limited by a very important reason which is the basic data, material seriously short and no establishment of a comprehensive system of domestic non-point source pollution database.

Introduction At present the dynamic and constantly rail railway scale has been used widely in orbit transportation measurement.As one of the weighing apparatus, weighing precision of the rail weighbridge is the soul of the product quality.The key focus of rail weighbridge system research is to improve the accuracy of the whole system in the design, manufacture, installation and so on each link.This paper focuses on optimal analysis of the installation position of shear sensor in shear type of rail weighbridge.
Through internal node coordinate location of web we can read the for measuring point respectively,they are N1，N2，N3，N4, The corresponding node values are 83, 88, 93,98 .Use PRDISP command can list text files of each node displacement material.
:Professional Engineering Publishing Ltd(2005) [5] M.Javed Hyder and M.Asif:Engineering failure analysis(2008) [6] Grosse,S and Schroder,W:Measurement Science&Technology(2008)

Study on Urban Public Security Planning Jing WU1, a, I-Shin CHANG2, b*, Yuan GONG3, c, Mingmin SHI1, d and Yanxia YANG2, e 1 College of Environmental Science and Engineering, Nankai University, Tianjin, China 2 College of Environment and Resources, Inner Mongolia University, Hohhot, China 3 Tianjin Urban Planning and Design Institute, Tianjin, China a wujing@nankai.edu.cn, b heartchang@126.com, c ghys2003@163.com, d shimingm@mail.nankai.edu.cn, e sunshine__2009@yeah.net * Corresponding author: heartchang@126.com Keywords: Urban Public Security Planning, Risk Identification Abstract：The aim of this research is to understand the progress of urban public security planning.
For example, based on the principles of active defense and comprehensive planning, the civil air defense engineering of urban planning is designed to serve the purposes of urban air defense and other military defense objectives.
In order to integrate emergency prevention, post-disaster relief and restoration planning, emergency management planning, and other essential elements into entire urban security planning, it is necessary to evaluate thoroughly the objects, key elements, procedures, and modes system of entire urban security planning, in addition to spatial structure planning.
The site selection and layout of emergency shelters, facilities and equipment, the layout of emergency response and rescue organizations (such as firefighting, public security, and hospitals), and the planning and layout of the scale, location, and allocation of rescue material should be included in the consideration on urban emergency events response.

Research of the Pepper Environment Monitoring System Based on IOT He Gonga,*, Ziyu Wub Information & Technology College, Jilin agriculture university, Changchun 130118, China a gonghe0001@163.com, b DoctorWuziyu@163.com Key words: Pepper, Internet of Things, Greenhouse, JN5148.
CO2 is the main raw material for photosynthesis of crops, such as pepper.
Shi: Journal of agricultural engineering, vol. 23 (2007) NO. 8, p. 160-164
Meng: Journal of agricultural engineering, vol. 19 (2013) NO.4, p. 13-18

., Hunan Institute of Engineering, Xiangtan 411101, China 2 School of Computer Science & Engineering，South China University of Technology， Guangzhou, 510641, China a liujunan@hnie.edu.cn, b wei_kx@163.com, c quxilong@126.com, d tanlixin2999@163.com, e yr.tao@126.com Key words：：：：plastic and rubber mold；shaped dimension；the remained measure of repairing mold; contracting fluctuation ratio；Probability theory; Green Product Design Abstract.
The metal parts can be separated magnetically; however, plastic material recycling is still a crucial problem to achieve a high level of product recyclability.