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Online since: July 2012
Authors: Ke Fei Zhang, Xiu Hong Zheng
For assessing how lotsize reduction impact on cycle time, Schmidt et al. propose a new tool modeling method for cluster tools with parallel chambers [5].
Finally, the performance analysis module collects the data of the system and outputs performance measures.
Online since: September 2012
Authors: Ke Wei Ding, Xiang Zhang
Prefabricated concrete construction and used precast Hollow slabs of masonry buildings as two of the most important architectural systems, applied a penetration rate of more than 70%.But precast concrete technology in China is relatively backward, on the one hand because of the large number of precast concrete structural in Tangshan earthquake damage which lend to more conservative application of prefabricated structures.The other hand,the precast concrete elements exist span is small, low bearing capacity,ductility, and a single species, and many other issues, these are also a serious impediment to the development of precast concrete structures in China[3]. 3.Present situation of study on precast concrete frame structure system at home and abroad As the level of application of precast concrete in China is relatively backward, and lacks the associated experimental data and theoretical analysis.
Many researchers study the connection of the precast concrete structure at home and abroad.Such as: (1)In 1994, the United States national earthquake disaster reduction committee recommended a ductile connection, it can be used for precast concrete frame system, can also be used for precast concrete slab-column structure, ductile connection with excellent non-linear response characteristics, but its layout does not need to avoid the plastic hinge region and node coincide
Online since: February 2011
Authors: Hui Jin Song, Qiang Yan
Fig.6 Scratch test data of CrNx coatings with different interlayer Fig.4 Nanohardness, Elastic Modulus and H3/E2 values of CrNx coatings with different interlayer Fig.5 Typical load-displacement curves of CrNx coatings with different interlayer The measured nanohardness and elastic modulus of chromium nitride coatings are in the range of 23-31GPa and 259-283GPa, respectively.
Coupling with its surface morphology characterized by AFM, The reduction in root mean square roughness of CrNx coatings in sample 1 also indicates the mechanisms for stress relaxation.
Online since: September 2011
Authors: Da Yong Li, Li Xue Cao, De Wei Fan
Influence of Shield Tunneling on a Nearby Buried Pipeline Dayong Li 1, a, Lixue Cao 2,b and Dewei Fan 3,c 1Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China 2Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China 3Research Institute of Structural Engineering and Disaster Reduction, Department of Civil Engineering, Tongji University, Shanghai, 200092, China aldy@sdust.edu.cn, bhuanxue.1@163.com, cvanderveer@163.com Keywords: Shield Tunneling, Buried Pipeline, Winkler's Beam on elastic foundation, Displacement of buried pipeline, Stress of buried pipeline.
Substituting the above data, we get initial parameters: Substituting the above initial parameters into Eq. 25 to Eq. 28, we may get displacement, rotation, bending moment, shearing force at any position along the buried pipeline.
Online since: July 2011
Authors: Fayek H. Osman, Rocco Lupoi
The forces were measured by a data acquisition system and at a frequency of 1000Hz.
The reduction in the impact force and damping period shows that the unit has been effective in reducing the peak load.
Online since: November 2010
Authors: Ping Yuan Xi, Si Qin Chang
In case of buses, the selection of new technologies is somewhat restricted compared to passenger cars, due to the fact that heavier buses already use very efficient diesel engines, and that the potential for weight and air drag reduction is constrained by the payload carrying requirements.
As the original engine model may not be used in the system. therefore, mathematical models of controllable motor may be replaced for the engine model whose specific data can be determined by characteristics of the engine.
Online since: September 2013
Authors: Cheng Xue Wang, Jian Qun Tan, Chun Yan Su
After the reduction, reaction gas at the certain of temperature, pressure and space velocity was directed to the reaction system for 2h.
Comparing all the data above, we found that as the increasing of Ce, the CO2 conversion and the selectivity of ethylene firstly increase and then decrease.
Online since: December 2012
Authors: De Qiang Wei, Yun Qing Zhao, Rong Wang, Hu Cheng Chen
Introduction Because of good wear resistance , vibration reduction , machinability, and low cost, ductile iron is an important engineering material[1].
In this paper, the thermal physical parameters, which are shown in figure1 (a),(b),(c), are got by material simulation software –JmatPro, and the expression about temperature is got though data fitting.
Online since: September 2013
Authors: Zhen Cai Qu
Data show that as of the end of 2011, there were all kinds of printing companies 102,484, the national scale printing companies were 2439, accounting for only 2.4% in the total number of the whole industry, the output value of these enterprises was 439.69 billion yuan, accounting for only 50.7% of total output value of the whole industry [3].
They always compete with each other by price reduction, resulting in profit margins declining, technological transformation and equipment renewal ability were even lower throughout the industry, if the vicious cycle continues, it will not only make a number of low-end production enterprises have been eliminated, but also drag a group of good business [4].
Online since: December 2013
Authors: Xiu Yang, Cheng Li, Hai Bo Wang, Mei Xia Zhang, Chen Zhao Fu
The relevant information of each micro-source is shown in Table 1 , diesel emission data, the generator pollutants standard of value, fine level as shown in Table 2.
With the development of technology, wind turbine and photovoltaic cost is expected to decline, oil prices will continue to rise, the government and enterprises attach importance to energy-saving and emission reduction, the economy of microgrid will be reflected greatly based on wind-solar complementary characteristics.
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