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College of Construction Engineering, Jilin University, Changchun, Jilin, China fanjianhuaa@163.com, cherry_bell@163.com Key word: the west of Jilin province, dispersivity of saline soil, material properties, migration of water and salt, significance of geotechnical engineering Abstract.
Through analysis of the properties of material composition, we reveals the inner connection between the dispersivity of saline soil and the soil’s practical environment and material composition, which has theoretical and practical significance in engineering practice and study of saline soil’s dispersivity in this area .This paper will help us fully understand the characteristics of dispersive saline soil and the way it behaviors in engineering for taking the feasible engineering countermeasures to cope with saline soil and engineering accidents caused by the dispersivity of saline soils.
The results of this paper will bring engineering applications of dispersive saline soil to a new level.
Dry dispersive soil usually has a satisfied engineering property for engineering construction.
By the compact of increase of fine materials, the zone which is 0.4m below the surface, capillary tunnels for the migration of water and salts established, they are the most important paths for water’s and salt’s migration in soil.

Engineered materials could arrest aircrafts rushing out of runway, but it’s fragile and can be easily damaged by jet blast exhausted by taking off aircraft nearby.
Engineered Materials mean high energy absorbing materials of selected strength, which will reliably and predictably deform under the weight of an aircraft [2].
Today, foamed concrete [4,5] is the mostly used engineered material.
Engineered materials were produced in 1×1 meter square and in varied height.
Zhao, Y.J Shi: Journal of Materials Science & Engineering, Vol.30 (2012), P.428-431.

Before quality management of principal structure, we shall supervise the construction of key parts, treat the engineering parts with frequent quality problems, the difficult points and key points in construction differently, and thus ensure the definite objective of quality management.
Starting from the angle of engineering quality, construction managers shall make scientific and reasonable arrangement for the construction progress in the early stage, middle stage and later stage of building engineering, make every construction stage have definite key points in construction, and strengthen the reasonable judgment on the construction quality of engineering.
In addition, construction managers shall pay attention to the quality of construction materials, and control material quality in the sections like material selection, purchasing and transportation, etc.
Before purchasing of materials, we shall do comparative shopping, select the material suppliers having relatively good social image and the construction materials with relatively high performance-price ratio.
Also, we shall arrange transportation companies with high credit degree to complete the transportation of materials; and before delivering materials to construction site, we shall determine the quality of construction materials by means of spot check.

Used-Car Dismantling and Recycling of Key Technologies Y.
However, discarded automobiles dismantling our business is just starting location and materials recycling.
Metal materials handling two typical processes, the overall fragmentation and cutting method.
In the recovery process, in order to improve the quality of materials as raw materials, commonly used separation technique.
Bian: Establishment of Resourced System model for Waste Automotive Parts China Surface Engineering Vol.19(2006)No.5: p.59-60

The radiator fan blades are made up of various materials nowadays and the legacy material used is steel.
The analysis of the radiator fan is executed to different types of materials to check and evaluate the material and process conditions which withstand the dynamic and structural loads.
In the paper design of the blade is done through reverse engineering.
They also present the reconstruction algorithm and explain this range image-based, computer-aided reverse engineering system has potential for faster model reconstruction over traditional reverse engineering technologies.
The key point data of blade was initially collected from Reverse Engineering process.

Practice and Exploration on the Training Mode of Architectural Engineering Technology Professional Dong Pinga, Zhang Zhiqiangb and Fang Rongc Zhejiang Water Conservancy and Hydropower College, Hangzhou, China aqp021625@126.com, bzhangzhq@zjwchc.com, cfangrong@zjwchc.com Key words: Practical Engineering Project; Integration; Simulation; Practical Skill; Training Mode Abstract.
Based on practical engineering, a training model that integrates the courses of engineering, and completes the whole process of project bidding by using all-dimensional simulation of engineering, can effectively bring learning actives closer to practical work, enhancing the cultivation of students’ professional and practical skills.
Such mode could also be practiced in other majors of civil engineering.
A discussion on the curriculum integration and reform of water supply and wastewater engineering in universities[J].
Water Supply and Wastewater Engineering. (2003) [4] Hu Zhiming.

Research on the Key Technology of Polynaphthalene Sulphonate Preparation LI Yun Guangxi Economic Management Cadre College, Nanning, Guangxi, China 1246109544@qq.com Keywords: polynaphthalene sulphonate, sulphonation, polymerization, key technology, consumption reduction Abstract.
Given this fact, one of the biggest problems bothering the additive production in our country is the low resource efficiency, increasing shortage of materials, climbing price which would definitely contribute to a higher product cost.
Therefore, polynaphthalene sulphonate is not used directly but only after adding other ingredients according to construction requirements and local materials as well as weather conditions.
Conclusion By the research and improvement for key technology of coagulation polynaphthalene sulphonate production, project target reaches domestic advanced level, especially the naphthalene material consumption is only 0.25 ton per ton of powder, which is far less than the average level of 0.5~0.6 ton per ton powder, it plays certain role to relieve the problem caused by high demand for naphthalene material supply and resource shortage, and has evident economic and social benefits.
[6] Pirre-Clande Aitcin and Adam Neville, High-performance Concrede, Journal of the Faculty Engineering, the Uni. of Tokyo,V.XLI,No.3,1992:21-26

Therefore the reasonable anti-leakage in unstable mountain is one of the key technologies that urgently to be solved in geotechnical engineering.
Clay diaphragm wall: The source of materials can be ensured, and the construction technology is simple.
Validation of engineering quality.
Applied Mechanics and Materials, 2012, Vols.204-208: 389-392
Deterioration reaction between alkali materials and laterite dams[J].

The Key Techniques on Micro-assembly of Micro-Radio Modules Li Wei1, a, Wang Jie2 1,2Science and Technology on Millimeter Laboratory, Beijing, China aliwei1963@sohu.com, bwwangjie2004 Keywords: key technique; micro-assembly; radio modules.
The key techniques in micro-assembly of micro-radio modules were discussed in this paper with analysis of their characteristics.
In the power synthesis technology, power modules make up the basic unit, power chip assembly technology becomes one key process.
Molybdenum copper alloy is composed of 3D structure of molybdenum and plane cubic structure consisting of Cu immiscible, the respective in composition to maintain a opposite fake alloy materials, it has excellent thermal conductivity properties of copper, molybdenum and has high strength, low coefficient of thermal expansion characteristics, this properties make it not only with the electronic device in the silicon substrate and the gallium arsenide material good matching sealing, avoiding the thermal stress caused by failure, but also has good thermal performance, widely used in the electronic packaging, heat sink material and high power current module based on.
Being closely combined with engineering need it is very important to begin deeper assembly technology research and constantly promote assembly technology of micro-radio modules.

Introduction Cellulosic ethanol is produced mainly from the two major sugar components of glucose and xylose in lignocellulosic materials by bioconversion process.
Actually, we only have konwn little about the molecular biology and metabolic engineering on xylose fermentation microbes.
Materials and methods Strains, media and cultivation conditions Candida shehtae ATCC 22984 and Candida tropicalis CBS 94 were obtained from American Type Culture Collection.
Fuel ethanol production from lignocellulose: a challenge for metabolic engineering and process integration .
Xylose isomerase overexpression along with engineering of the pentose Phosphate pathway and evolutionary engineering enable rapid xylose utilization and ethanol production by Saccharomyces cerevisiae .