Search results

On the Mechanism and the Rate of Sub-ground Erosion in the Loess Material Xi An LI 1, a, Qiang XU 2,b, Hong Zhou LIN 1,c Wan Jun YE 3,d 1 College of Geology Engineering and Geomatics, Chang’an University, Shanxi Xi’an: 710054, China 2 The National Laboratory of Geo-hazards Prevention and Geo-environment Protection, Chengdu: 610059, China 3 Xi’an University of Science and Technology, Shanxi xi’an 710054, China adclixa@chd.edu.cn, bxq@cdut.edu cn, clinhz03@gmail.com dyewanjun2004@126.com Keywords: Mechanism; Sub-ground erosion; Critical condition; rate of tunnel-erosion.
Sub-ground erosion often resulted in severe problems in various engineering constructions, most of which is due to the sub-erosion in loess.
The key factors considered in the test include soil density as well as the initial water content.
In many cases, the lower side erosion acts as a key reason for the gravity erosion.
On the origin of hidden holes in loess and its hazardous effects on the highway engineering [Ph.

The Study on the Key Technologies in Multiple Agent-based Intelligent Tutoring System Yan Yu1,a, Jianhua Wang1,b* 1Institute of Computer Science and Information Engineering,Harbin Normal University,Harbin 150025, China a email:yuyan9999@vip.qq.com, bemail: WJH@vip.163.com *Corresponding author.
The first generation offers learns teaching materials and related information as well as other associated education website links.
In addition to offering online learning materials, the second generation as well requests learners to conduct two-way asynchronous communications via emails, e-bulletin boards, and online exercises and measures.
The workload of plenty of network course development is just two to three weeks’ work by two to three persons with the contents of nothing but piling up classroom teaching materials
Computer Engineering and Applications,2002(6):6-7

Material Data Integration Model based on Context-Aware within Manufacturing Enterprises Dongjuan Xue, Ying Pan School of Mechanical and Power Engineering, Dalian Ocean University, Liaoning, China xuedongjuan@163.com, panying@dlou.edu.cn Keywords: Materials data integration, Context-aware , Multi-level context Abstract.
In this paper, a context-aware materials data integration meta model is presented which is incorporating an advanced materials demand mapping and decomposition mechanism to support fine-grained materials data in the right time for the provision of materials services, based on the analysis of the application context involving the key points and relationships in their manufacturing processes.
Introduction Materials management is important during the process of production management in the enterprises[1].
Context data are defined as any raw materials data values of the relevant entities, which affect the data integrating.
Actually, this is the mechanism for obtaining first-order context information from raw materials data.

Study on Engineering Property of Water-based Epoxy Resin Mortar Gong Du-ming1,a, Liu Qi-cheng1,b, Chen-ling2,c, Xiong Zi-jia1,d 1School of Physics & Electronic Science, Changsha University of Science & Technology, Changsha, 410114, China 2School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha, 410114, China agoulong_1988@126.com, bliuqc1856@hotmail.com, c493200250@qq.com, d981693128@qq.com Key words: water-based epoxy resin mortar; fluidity; pin performance Abstract.
Influence of water-based epoxy resin ratio on engineering property was discussed.
As the results showed,when the fluidity decreases with the increase of resin dosage(water-based epoxy resin on the percentage of total materials), and the best resin dosage is 9.7% around.
Material.
Results and discussions Test results analysis of water-based epoxy resin mortar engineering properties.

Engineering ceramics have been widely used in recent years because of its excellent performances.
As structural materials, the ceramics are inorganic and non-metallic materials which have been developed most quickly at present and they have been popular used in many fields.
In the experiment, the hot pressed Al2O3 engineering ceramics are adopted.
Zhang et al: Journal of Materials Processing Technology, Vol. 122 (2002) No.5, pp.232-236
Zhao: Key Engineering Materials, Vol. 359-360 (2008), pp.379-383.

Wang: Journal of Systems Engineering,Vol.16(2001) No.5,p.335.
Shu: Journal of Systems Engineering,Vol.16(2001) No.5, p.349.
Si: Systems Engineering,Vol.18(2000) No.5,p.79.
Dai: Engineering Science,Vol.7(2005) No.8, p.18.
Liu: Systems Engineering-theory & Practice,Vol.27(2007) No. 3,p.42.

Fatigue Failure Analysis on Key Components of Bladder Accumulators Yaping Niu1,a*, Bingbing Chen2,b 1Technical Development Department, Ningbo Special Equipment Inspection Institute, Ningbo 315048, China 2College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China a*goodlife_me@163.com, bchenbb@zjut.edu.cn Keywords: bladder accumulators; fatigue failure; finite element method.
Fatigue failure analysis on key components of bladder accumulators was conducted.
By simulation using the finite element method, it was detected that the peak stress of the key components applied on the contact surfaces.
Which illuminated the flash burn increased the brittle of the local material and induced the crack initiation.
Calculated according to the linear elastic, the Young's elastic modulus of the material is 2e+5MPa, the Poisson's ratio is 0.3.

How to obtain the geometry of an object has been one of the main topics in reverse engineering (RE).
CGI uses CNC milling machines to remove the materials and CCD cameras to capture images.
No results are shown for objects made of other materials.
However, for materials of high hardness, regular milling cutters may not be adequate.
Ku: Biomedical Engineering - Applications, Basis and Communications.

XYZ, there are engineering control, administrative control, and personal protective equipment (PPE). 1.
The effectiveness and successes of controls, including engineering controls, policy, and training, needs to be regularly evaluated and updated [16].
Work and safety training Workers need training in engineering controls, new processes and equipment in order to understand their purpose and how to implement or operate them correctly and safely.
Engineering Control One of the efforts in applying engineering control is to redesign the workplace [21].
Desain Tempat Kerja Berbasis Engineering Control Sebagai Pengendalian Covid-19.

It fills the blank in the field of China’s highway construction management philosophy and monitoring means, which is a great significance of the large, complex highway engineering practice.
However, it is still a blank for the internal quality control for the project or key part of the overall process, such as raw material transportation, mixture mixing production, construction mixture ratio, material transfer vehicle passing in and out mixing stations for identification and weighing, road paving, RCC and other data collection, the mathematical statistics and analysis in order to achieve modernization information technology and engineering construction control technology; especially the concept of domestic construction specifications and project management.
The data of the pavement engineering management are complex.
Through the integration of the video monitoring technology used in mixing stations or key project construction sites and the automated real-time production data monitoring technology, and full use of video analysis technology, license plate recognition technology, GPS vehicle positioning technology, GPRS wireless transmission technology, SPC (Statistical Process Control, referred to as SPC) and other important means of secondary data mining and statistical analysis, it forms a complete dynamic system of monitoring engineering quality and safety, makes a breakthrough in the traditional engineering quality and safety supervision system, improves the efficiency of construction management and effectively controls the safety and quality.
The system collects and uploads the real-time data of the raw materials for the production in the asphalt mixing stations, production indicators, the temperature indicators of the road construction by the technology of GPRS wireless transmission.