Search results

A PCR-DGGE approach to evaluate the influence of environment materials for civil engineering–different carbon sources on a catching bed biofilm reactor in start–up phase Yan Zhang1a, LiLi Wang1b, ZhengYang Yang 1a, XuYing Zhao2a HuanGuang Liu1a, Min Zhu1a 1Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering College of Arc. and Civ.
Abstract: In this study, the effect of environment materials for civil engineering was investigated through two sets of parallel reactors with sodium acetate and starch as carbon source separately.
Schematic diagram of catching bed biofilm reactor Materials.
The influence of environment materials for civil engineering–different carbon sources on catching bed biofilm reactor in start-up phase was not much different.
Microbial and water treatment engineering.

Subgrade Engineering, 2006, (6): 126-127.
Subgrade Engineering, 2010, (5): 189-191.
Applied Mechanics and Materials, 2013, 256-259: 283-286 [9] ZHENG J L, ZHANG R, YANG H P.
Journal of Materials in Civil Engineering, 2009, 21(4): 154-162.
Highway engineering construction organization and estimating(3rd)[M].

This is an area where technologists, biologists and physicians work together to gain basic knowledge of the physical properties and behaviour of biological materials.
Advances in biomedical technology made possible by this partnership include dialysis machines designed to replace sick and malfunctioning kidneys; hip and knee prostheses; materials and technologies for the work of the heart and blood vessels; artificial heart.
Products and drugs invented by biotechnologists The key area of biotechnology is biomedicine.
Specialties included in biomedical engineering Types of specialties Description Tissue engineering A combination of cells, engineering techniques and materials, and appropriate biochemical and physical-chemical factors are used to improve or replace biological tissues.
For example, biomimetics is a branch of bioengineering that seeks to use structures and functions of living organisms as models for the design and manufacture of machines and materials.

Case Study on CDIO-based Engineering Education Mode through College-Industry Lingkages Weiwei YE a; Wu LU Zhejiang University City College , Hangzhou, China aYeweiwei@zucc.edu.cn Key Words: CDIO; Engineering Education; College -Industry linkage Abstract.
Engineering Education through College-industry linkage Engineering is different from ordinary education or traditional specialized education.
This teaching method makes engineering more absorbing to engineering students.
Background China’s plastic machinery industry came into being in the later years of 1950s, and as an important part of China’s machinery industry, it provides plastic raw material industry and plastic products industry with key equipment.
Issues in Engineering Education: A Working Paper of the Board on Engineering Education. http://www.nationalacademies.org/nrc/, 1993.8 [6] NSF.

Preliminary Study on Novel Bone Tissue Engineering Scaffold with Stacking Hollow Hydroxyapatite Microspheres Y.F.
Weng 2 1 Key Laboratory of Oral Biomedical Engineering, Sichuan University, Chengdu, 610041, China 2 School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China a worm2315@163.com; b cybao9933@yahoo.com.cn Keywords: Tissue engineering scaffold, HA bioceramics, MSCs Abstract.
Introduction In general, tissue engineering is composed of three key elements: seed cells, scaffold material and culture system, of which the scaffold material is the most fundamental.
Materials and Methods Experimental animal and scaffod materials.
Preparation of cells and materials [1] .

Covering and Reinforcement Key Technologies of Airport Old Cement Concrete Pavement Shi Bao Hua1,Ning Wen Pu1,Wang HanWei 2,Sun Tao 2 1School of engineering, Air Force Engineering University，Xi’an 710038，Shanxi ,China 2Airfield and Barracks quarters section, logistics department, Jinan Air force，Jinan 250000，Shandong ,China Keywords: Airport engineering；Cement concrete； Pavemen； Covering and reinforcement；Asphalt concrete.
Practice has proved that if isolated material adopts the asphalt materials with better stability, such as asphalt felt, sand asphalt, particulate type bituminous concrete, etc, covering result is better.
Secondly, it is the direct type, the request of chiseled unsmooth lead to engineering difficulty and investment increased, so seldom adopt at present. 4.
The modified asphalt layers also takes on certain anti-reflection effect, but not exceed the former three materials in anti-reflection ability. 4.2 Tests of thickness of asphalt covering layer Covering by bituminous concrete, another key technology is to control covering thickness.
Thereby, taking into economical efficiency and engineering performance account, the thickness of asphalt covering strengthening course isn’t suitable less than 4cm, and isn’t suitable more than 15cm[3]. 5.

Development of New-Type Similar Materials of Geomechanics Models Test for Geotechnical Engineering Q.
The iron ore powder, blanc fix and quartz sand among them are main materials.
The raw materials chosen are iron ore powder, blanc fix, quartz sand, gypsum powder, rosin alcohol solution, of which iron ore powder, blanc fix and quartz sand are the key ones.
Chinese Journal of Rock and Engineering.
Chinese Journal of Northwest Water Resource and Water Engineering.

The Advantage Analysis of Applying Steel Tube Tower in Large Span Engineering Gong Jing, Wang Linna Architecture Engineering College, Northeast Dianli University, Jilin 132012, China, *Email: ligenyyfd@163.com Keywords: large span engineering; steel tube tower; Angle steel tower; sap2000; mechanical analysis Abstract: With the operation of the power engineering, such as west-east electricity transmission, the outside sending of the three gorges, areas network and so on, many large span engineering emerged in different part of China.
And in China, steel tube tower mainly used in large span engineering.
According to some statistics, there are about 12500kv large span engineering, 12220kv engineering, 3110kv large span engineering.
In the 500kv double loop and multi-loop transmission line, about 20 transmission line engineering used steel tube tower.
In 2005, Liao Zonggao did the research about the problem of the design of steel tube tower in choosing materials, the calculation of connection strength, the connection of steel pipe penetration, the application of high strength blot, the connection way of the sway rod with main material of steel tube tower, and the connection of the steel tube tower with its foundation etc..

Dubey5 1M.Tech Scholar, Electronics & Communication, NIIST, Bhopal, India 2Head, Dept. of Electronics & Communication, SCOPE, Bhopal, India 3Head, Dept. of Electronics & Communication, NIIST, Bhopal, India 4Dept. of Electronics & Communication, TITR, Bhopal, India 5Dept. of Computer Science & Engineering, TITR, Bhopal, India akhandelwal7@gmail.com, yogesh.khandagre@gmail.com, ashutoshdubey123@gmail.com Keywords –WSN, Security, Key pair, Heterogeneous Environment Abstract- How to improve the efficiency with security with the extension of lifetime of sensor nodes is the interesting area in the field of Heterogeneous Wireless Sensor Network (WSN).
The previous protocol uses both probabilistic key pre-distribution in the lower tier of the network architecture and public key cryptography in the upper tier to distribute session keys.
It generates a large pool of random symmetric keys and then preconfigured each node with a number of keys randomly selected from the key pool.
Key connectivity is the probability that two or more sensor nodes store the same key or keying material.
We also consider a public key like RSA algorithm which is known to everyone but the private key is the personal key based on which communication is possible.

Analysis on Whole Life Cycle Cost Management of Highway Engineering Huihong Fenga, Xiaoping Dingb, Jingsi Chenc and Yu Chend School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu, Sichuan, 610500, China afenghh163@163.com, bdingxiaopingshu@163.com, csummer68123@126.com d694595905@qq.com Keywords: Highway Engineering, the Whole Life Cycle, Engineering Cost Management.
Design phase is an important influence stage of engineering cost control, it plays a key role to the entire engineering cost control, however, the designers do not pay attention to the combination of technology and economy, making comparison programs often only study the advanced technology, but for the economy rationality is considered insufficient, and awareness of cost control is also very weak.
Thus the engineering cost will lose control finally.
In the construction stage, the contractor should formulate reasonable and scientific engineering cost control objective, and take the advanced material price administration method, take care of the best material purchase opportunity and the reliable material market purchasing price.
Secondly, it should to do well the materials management.