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Cioffi1,g 1Department of Engineering, University of Naples Parthenope, Centro Direzionale Isola C4, 80143 Napoli, Italy 2Department of Civil Engineering, University of Salerno, 84084 Fisciano, Italy a*marco.ruggiero1@studenti.uniparthenope.it, bilenia.farina@assegnista.uniparthenope.it, ccinzia.salzano001@studenti.uniparthenope.it, divan.moccia001@studenti.uniparthenope.it; efrancesco.colangelo@uniparthenope.it, ff.fraternali@unisa.it, graffaele.cioffi@uniparthenope.it Keywords: Plastic waste, Polyolefins, Recycled concrete, Industrial waste.
Composites Part B: Engineering, 129, 11-17
Composites Part B: Engineering, 46, 207-210

Property tests and mathematical model for magneto-rheological fluid Weiyang Guo1 , Zhaodong Xu1,a , Yingqing Guo2, Xiangcheng Zhang1, Yiqiu Zhou1 1 Key Laboratory of C&PC Structures of the Ministry of Education, Southeast University, Nanjing, 210096 China 2 Mechanical and Electronic Engineering College, Nanjing Forestry University, Nanjing 210037, China a Corresponding author, zhdxu@yahoo.com.cn Keywords: Magneto rheological fluid; Shear model; Shear yield stress; Abstract.
Introduction The magneto-rheological fluids (MRFs) are a fast-developing smart material, which has been widely used in many fields, such as aerospace, military industry, mechanical engineering, civil engineering.
Mance, Evaluation of electroless nickel surface treatment for iron powder used in MR fluids, Materials Science and Engineering, 2003 [6] J.D.

Numerical Simulation and Design Optimization of the Composite Roof Roadway support for Large Section Renshu Yang1, 2, Zhenfang Li1, Dongming Guo1, 2, Peng Xu1,Zongming Gao1 1School of mechanics & civil engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China 2State Key Laboratory for Geomechanics and Deep Underground Engineering, Beijing, 100083, China Key words: Composite Roof Gates, Large Section Roadway, Numerical Simulation, Support Optimization Design Abstract.
There are many ways for the optimization of support parameters design, such as theoretical methods, engineering analogy method, and numerical analysis methods [9-11] and so on, both have achieved good results.
Renshu Yang, male, born in 1963, professor, doctor, mainly engaged in teaching and scientific research of rock-soil engineering. dmguo@cumtb.edu.cn The Communication Author.
Beijing: China Coal industry Publishing House, 2007. ( in Chinese) [5] P.O.Grady, P.Fuller, P.Dight.Cable Bolting in Australian Coal Mines Current Practice and Design Considerations[J],Mining Engineer,1994, 154(396):89~92
The Foundation and Engineering Project of FLAC/FLAC3D [M].

Experiment and micro-mechanism study on mechanical properties and durability of high-calcium fly ash concrete LI Shuang-xi 1, a, Yang Tuan-she 2,b, Wang Zhi-ming 3,c, Hu Quan 1,d 1 Xinjiang Agricultural University, Institute of Civil Engineering 830052，China 2 State Power Aksu River Hydropower Development Co., Ltd. 843000, China 3 Xinjiang Water Conservancy Departments, Water Improvement Office 843000, China a xjlsx123@126.com, b 462539306@qq.com c xjwzm@sohu.com, d 164978700@qq.com Key words: high-calcium fly ash; stability; mechanical property; durability; W/B; micro-mechanism Abstract.
Low-calcium fly ash is paid much attention for its wide use in engineering, the research and application technology of it are very mature, but as to high-calcium fly ash concrete, the researches on stability, mechanical property and durability of it are very less , The existing researches are still inadequate for practice of engineering.
Tsimas [6] studies on the application of high-calcium fly ash in the engineering, summarizes the problems and proposes the solutions; Mu Dapeng [7] studies on the strength and shrinkage performance of high-calcium fly ash concrete; Song Wenfeng [8] studies on the compressive strength, resistance to carbonation and chloride ion penetration of high-calcium fly ash concretes with different fly ash contents.
Today, low-calcium fly ash is paid much attention for its wide use in engineering, the research and application technology of it are very mature, but as to high-calcium fly ash concrete, the researches on stability, mechanical property and durability of it are very less , the existing researches are still inadequate for practice of engineering.
Acknowledgement The research work is partially carried out with the financial support from Xinjiang Agricultural University, Water Resources and Hydropower Engineering Key Discipline (XJZDXK20021005) and Key Project of Xinjiang University Research Plan (XJEDU2008I15).

Two test results of standard parts from home and abroad show that, the accuracy of value prediction is able to meet the requirements of engineering applications.
The fitting coefficients and the weights determine engineering application value of the fitting results.
China Mechanical Engineering, 2008, 19(7):787~792 [4] Qu Zhenzhen, Bao Heyun, Zhu Rupeng.
China mechanical engineering, 2007, 18(7):838~841 [7] Qiao Peiyu, He Xin, Wei Zhonghui.
Journal of Civil Engineering, 2004, 37(3):80~84 [9] Zhang Xianfu, Feng Dongqin.

And she calculated and analyzed the slope instability problem of specific mining engineering.
The II-grade weight can be calculated with many trial calculations through some engineering examples.
[5] Bieniawski Z.T.Engineering Rock Mass Classification, P251.Wiley, New York,1989
ENGINEERING METHOD OF VARIABLE FUZZY SET FOR ASSESSMENT OF SURROUNDING ROCK STABILITY, Chinese Journal of Rock Mechanics and Engineering
“Rock slope engineering”[M].

Optimization of Pre-Treatment Parameters before Diamond Coating using Non-dominated Sorting Genetic Algorithm (NSGA-II) Abolfazl Golsha1,a, Mostafa Rezazadeh Shirdar2,b, Scott Gohery3,c, and Mohammadfarid Alvansazyazdi4,d 1Faculty of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran 2Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, UTM Skudai, Malaysia 3Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, UTM Skudai, Malaysia 4Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, UTM Skudai, Malaysia agabolfazl@gmail.com, bmosico63@gmail.com, cscott.gohery@unimelb.edu.au, dalvansaz@gmail.com paper has been updated on 11.04.2024 Keywords: pre-treatment process, surface roughness, cobalt content, statistical model, multi-objective optimization, non-dominated sorting genetic algorithm.
Non-dominated Sorting Genetic Algorithm (NSGA-II) with the use of MATLAB Software codes is used to solve multi-objective optimization problem in order to provide a preferred solution for a process engineer in a short period of time.
If an engineer desires to have a better percentage of cobalt content, or more surface roughness, a suitable combination of variables can be selected from Table 6.
The emphasis must be put on providing a preferred solution which is dependent on the requirements of the engineer.

Study of free vibration characteristic of continuous box-girder based on Hamilton principle Zhou Wangbao1,a,Jiang Lizhong1,b,Huang Zhi1,c 1School of Civil Engineering, Central South University, Changsha 410075, china awb77@qq.com, blzhjiang@csu.edu.cn, c81265022@qq.com Keywords: Continuous box-girder; Shear lag effect ;Shear deformation;Hamilton principle; Characteristic of free vibration Abstract.
Engineering Structures,2009,31(8):1888-1902
Engineering Mechanics, 2011, 28(11): 45-51
Engineering Structures, 2007, 29(11): 3026−3041
JOURNAL OF ENGINEERING MECHANICS, 2005, 131(2):199-210

The Forecasting for Artificial Frozen Soil Temperature Field Based on Support Vector Machines Method ZHANG Shiyin， CHEN Junhao, Mao Fen School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan Anhui China 232001 shyzhang@aust.edu.cn, aldcjh123@163.com, 522450157@qq.com Keywords: Artificial frozen soil temperature field; Support vector machines; Forecasting Abstract.
Introduction Freezing method is using artificial refrigeration technology to make water in layer freezing, which can turn natural geotechnical into frozen soil, and it can increase soil’s strength and stability, isolating from groundwater and underground, so that the driving and masonry construction of underground engineering can be processed under the protection of the frozen wall.
Hydrogeology & Engineering Geology, 2006,33(3):38-40.
Chinese Journal of Geotechnical Engineering, 2003,22(10):631-633.

Progressive Collapse Mechanics of Reticulated Dome under Impact Duozhi Wang1,a, Junwu Dai1,b, Feng Fan2,c, Xudong Zhi 2,d 1Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China 2School of Civil Engineering, University of Harbin Institute of Technology, Harbin 150090, China a dzwang_hit@yahoo.com.cn, b junwudai@126.com, c fanf@hit.edu.cn, d zhixudong@hit.edu.cn Keywords: reticulated dome, impact, progressive collapse, failure mechanics, energy.
Fan, et al: Engineering Mechanics, Vol. 25(2008), p. 144-149, in Chinese
[6] Uwe Starossek: Engineering Structures, Vol. 29(2007), p. 2302-2307.