Search all articles

+ Advanced search
Search articles within:
84145 articles
Yongmei Qian, Qingyu Cheng, Rongzheng Zhai
This article discusses the current development of tests about pile foundation at home and abroad. According to the difference of test purpose and content, it is analyzed that several typical test methods of the Multi-Extruded-Expanded-Plates pile. In the article, due to the imperfections existed in the...
Yun Yao, Hao Zou
FRP is new type of composite material which substitute for reinforcing steel bar in concrete structure and can solve wear problem caused by steel bar rusting.The result of its bond behavior with concrete is one of the key technologies for its popularization and application to reinforced concrete structure.We...
Jianqiao Li, Yaxun Yang, Zhikui Yang
Running is the cantilever method is adopted in the study of the construction of continuous rigid frame bridge construction monitoring.The bridge with high pier and large cross-border, narrow bridge deck and other characteristics, high construction requirement and great technical difficulties.According...
H. Li, W. Tang
This article mainly analyses different representations of bridge seismic damage and their causes, discuss mostly the analytic means of bridge structures’ elastic-plastic earthquake response and the design method of ductile earthquake-resistance. In the end, the developing trends of the method in future...
Xiangsheng Chen, Dehua Hu, Di Zhang, Sijia Wang
In this paper the measured blast vibration signal of tunnel between Huaxin station and Huangmugang station of Shenzhen subway line 7 was analyzed, with blasting excavation way of benching tunneling construction method using different maximum charge of explosives. The peak vibration velocity and main...
Zhaodong Li, Zhonglei Wang, Sheke Hao, Pengyao Liu
Critical for flanging of square tributary junction on cylindrical steel tube is to determine the shape and sizes of pre-machined hole. In order to investigate precise shape and sizes of the pre-machined hole, an optimized design model is established. The forming process during flanging is simulated with...
Yanpeng Feng, Haijun Tang, Ping Shu
Titanium alloy hydraulic tubes were weld with gas tungsten arc welding method in this work. The microstructure of weld zone and heat affected zone are clarified with metallographic microscope, And followed by tensile test and fatigue test, with stress rate R is 0.1 and frequent is 10 Hz. It is found...
Zhengdong Li, Zhanle Ma, Xiaobin Wang, Yinxu He, Chuan Peng
The Nexperia PNX1700 Media Processor is a complete Audio/Video/Graphics system on a chip that contains a high-performance 32-bit VLIW processor, capable of high quality software video, audio signal processing. Based on Philips Semiconductor's multimedia processing chip Nexperia PNX1700, designs a new...
Da Zhang, Liang Chen, Zaiqin Wang, Tao Wei
The hydrogel is a three-dimensional reticular polymer with high water content, which was used in various fields such as medicine, biology and environmental protection. However, the characteristic of lower mechanical properties limited its application. Therefore, the improvement of the mechanical strength...
Yuan Yuan, Zhengdong Li, Runhua Yan, Lin Wu, Wei Huang
To solve the traditional problem that the situation in mine is unknown in time, a kind of wireless monitor system based on ZigBee technology is designed. In this system, the security manager can real-time monitor the gas density of multi-location .Compared with traditional system, this system is portable...
Shanshan Xie, Hui Li
Oxygen enriched combustion technology is an important branch of greenhouse gas emission reduction technology, which has been developed rapidly in recent years. This paper briefly introduces the method of oxygen enriched combustion and the energy saving characteristics and the influence of the environment...
Wei Fu, Jiajia Ni, Chengxian Zhou, Yan Chen
robot model of three-arm and five-degree freedom plus large scope of traversing welding was established, and decoupling of models of “large scope of traversing”, “triangle movement of two arms” and “spherical movement of one arm” was realized. The model of “triangle movement of two arms ”is able to use...
Tao Wang, Fang Wang, Hongqun Chen, Junyan Ou, Dawei Yu, Jiawen Zhang
This paper aims to research and analyze the heat dispersion of small variable capacity refrigeration system which is used for cooling the chips with high heating flux. The cooling system was built for researching what influence refrigerant charge will bring to the performance of the system, such as suction-exhaust...
Longlong Liu, Tingting Zhao, Maojuan Liu
A new method for similarity analysis of protein sequences is presented in this paper. On the basis of positions, proportion difference and various physicochemical properties of 20 kinds of amino acid in different protein sequences, representative information was extracted from protein sequence and converted...
Nan Lin, Menghong Nan, Weidong Li
Using the principal component (PCA) strong ability of extracting effective features of foundation pit horizontal displacement monitoring data (monitoring, monitoring temperature, relative humidity, excavation depth) characteristics analysis .extracting the effective principal component, constructing...