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Refined Cotton Centrifugal Dewatering Process and Key Technology Wang Weihui1,2,a, Hu Guangzhong1,2,b and Zhou Min1,2,c 1Sichuan Provincial Key Lab of Process Equipment and Control, Zigong, P.R.
China, 64300 2Sichuan University of science & engineering, Zigong, P.R.
The gap width of the sieve is usually similar to or slightly larger average size with processing materials.
Scraper is the main components of driving materials in the centrifuge, in most cases, scraper is perpendicular to the sieve and the drum, so that in the process of pushing materials scraper has great friction with materials, if their change the form of vertical sieve or drum with a certain angle, then from the mechanical analysis, the friction with the contact surface decrease obviously.
Acknowledgements--The authors wish to thank the Open Fund Program of Process Equipment and Control Engineering Key Laboratory of Sichuan Province（GK200901）for funding this work.

Mechanical Design and Manufacturing of Signal Interception Antenna in Composite Material for Naval Application Santoro Daniele1,a*, Lecci Umberto1,b, Pera Fabio Massimo1,c Geatano Domenico2,d, Bia Pietro3,e*, Manna Antonio3,f 1Elettronica S.p.A., Mechanical Engineering Department, Rome (Italy) 2Elettronica S.p.A., Antenna&Microwave Engineering Department, Rome (Italy) 3Elettronica S.p.A., Research and Innovation Department, Rome (Italy) a daniele.santoro@elt.it, bumberto.lecci@elt.it, c fabiomassimo.pera@elt.it, ddomenico.gaetano@elt.it, epietro.bia@elt.it, fantonio.manna@elt.it Keywords: Composite materials, naval antenna, mechanical testing, FE model, EM transparency, copper mesh.
Composite materials offer a solution for this purpose, giving higher specific stiffness and strength superior than conventional metallic materials, such as aluminum or steel.
Numerical and Experimental Methods Materials Several composite materials were used for the naval antenna in order to design a structure with high specific stiffness and strength.
The above-mentioned materials were used mainly for the Base and Resm sections.
Santo, Structural design of hybrid processing unit chassis for airborne electronic systems, Proceedings of the ASME 13th International manufacturing science and engineering conference, 2018

Design and Implementation of Stone Materials Information System Hao Rao Department of Computer Science, Shaoguan University, Shaoguan, 512005, China email: gdrh999@163.com Keywords: Stone Materials, SQLite, Information System Abstract.
Stone Materials Information System use ActionScript to connect SQLite database.
Information of stone materials, transaction, customer, employee can be stored by system.
Stone Materials Information System provides convenience for stone material transactions between the manufacturer and the customer.
Computational Science & Engineering, Vol. 6 (2013), p.232.

Engineering Quality.
In the actual engineering practice, people face many complicated problems which not only relate to the rational use of materials, energy, and space etc. but also include the technology problems of design, scheme, processing equipment as well as information processing.
Engineering capabilities is the ability to solve the practical engineering problems applying his engineering knowledge based on one’s engineering knowledge [3].
The teaching of engineering theory.
It is helpful to stimulate the engineering knowledge been digested and absorbed and it is the key process to form the engineering quality, and which will directly influence the level of the engineering quality.

Influences of Ultrasonic Assistance in High Speed Lapping of Nano ZTA Engineering Ceramic on the Surface Machining Quality Feng Jiao1,2,a, Bo Zhao 1,2,b, Chuanshao Liu1 and Xunsheng Zhu2 1 School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China 2 School of Mechanical and Power Engineering, Henan Polytechnic University, Henan, China a jiaofeng@hpu.edu.cn; bzhaob@hpu.edu.cn Keywords: Ultrasonic lapping, Solid abrasive material, Nano ZTA ceramic, Surface quality Abstract.
Ultrasonic aided high speed lapping with solid abrasive material was put forward aimed at the precision finishing of nano ZTA engineering ceramic.
Introduction Engineering ceramics are being used widely today in the fields of modern manufacturing industries, astronautics and precision mechanical engineering etc. due to their superior physical and mechanical properties.
Especially nano zirconia-toughened-alumina (ZTA) engineering ceramic has become the key engineering material of precision component for its special toughening mechanism and good toughening effect [1].
For brittle materials such as engineering ceramics, the material removal generally presents brittle fracture.

Strength Characteristics of Natural Rock Mass and Its Engineering Application Jinli Miao 1,2,3, a, Wen Nie 2,b 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China 2 State Key Laboratory for Geomechanics and Deep Underground Engineering,Beijing,China 3 The Sixth Engineering Bureau, CREC, Beijing, China amiaojinli@163.com, bniewen@163.com Keywords: Rock material, Mechanical test, Rock failure Abstract.
All rock mass engineering projects are closely related to rock mass material property.
The engineering project scale comparing to the rock material crystal size decided the size effect critical value [[] E.
Slope engineering.
Tunneling and chamber engineering.

Key Engineering Materials Vol. 2

Key Engineering Materials Vol. 8

The applications of a new material used in controlling underground engineering and coal mine disaster have been introduced.
Expanded materials are a kind of porous materials in which some bubbles can be produced by physical internal gasification.
Firstly, make clear the location and situation of foundation subsidence through the geophysical exploration and engineering survey.
Hydrogeology and Engineering Geology. 2008
Specification for site investigation and engineering design on Xi’ an ground graetures.2006.1～13

The achievements are widely used in Guotun coal mine in Juye coal field with success, which offers a reference for similar engineering.
Engineering background The Guotun coal mine locate in Heze, Shan Dong belongs to Luneng Development Co., Ltd.
The initial pressure reached to 6.5MPa and total water inflow 70 m3/h, serious loss of material under hydrodynamic conditions.
(3) Key technology was established for grouting governance on deep-level tunnel water inflow and relative field tests were conducted, which achieved good effect and has a reference for similar engineering.
Ultrafine grouting material [A].