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Online since: April 2014
Authors: Mei Fang Zhu, Zhe Zhou, Si Deng Zhang, Shi Chao Wang, Ren Lin Wang, Bin Sun
Preparation and Characterization of Ethylene-octene Copolymer/Modified Nanosilica Composites by Radiation Processing
Sideng Zhanga, Renlin Wangb, Shichao Wangc, Zhe Zhoud, Bin Sune*
and Meifang Zhuf*
State Key Lab for Modification of Chemical Fiber & Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
azsdwkl@126.com, bwangrenlinhappy@163.com, cwangscdhu@163.com, dzzhe@dhu.edu.cn, esunbin@dhu.edu.cn, fzmf@dhu.edu.cn
Keywords: Ethylene-octene copolymer, Silica, Nanocomposites, Radiation.
Introduction In recent years many novel materials have been continuously springing up for specific requirements due to the very fast growth of industrial activities around the world [1].
POE with excellent mechanical properties and cryogenic properties could not only be widely used in toughening thermoplastics, wire and cables [2], but also be applied as packaging materials and biomedical materials [4].
Experimental Materials.
The curves of deformation-temperature were performed on GTS-Ⅲ type thermal deformation measuring instrument (Shanghai Donghua Kaili Technology of New Material Co., Ltd, China) using a probe with 2.5mm diameter under compression stress of 200Pa at a heating rate of 3℃/min.
Introduction In recent years many novel materials have been continuously springing up for specific requirements due to the very fast growth of industrial activities around the world [1].
POE with excellent mechanical properties and cryogenic properties could not only be widely used in toughening thermoplastics, wire and cables [2], but also be applied as packaging materials and biomedical materials [4].
Experimental Materials.
The curves of deformation-temperature were performed on GTS-Ⅲ type thermal deformation measuring instrument (Shanghai Donghua Kaili Technology of New Material Co., Ltd, China) using a probe with 2.5mm diameter under compression stress of 200Pa at a heating rate of 3℃/min.
Online since: March 2014
Authors: Le Ma, Yi Chai
Among closed-loop supply chain management, the management of the cost of supply chain management is a key ring, low cost means that high profits.
Fleischmann (1997) proposed general loop supply chain management framework, pointing out two types of closed-loop supply chain can supplies inventory sources: First, from the external sourcing new raw materials or components to produce new products, two products is the recycling of waste reprocessing to return to the "new" product status[1].
Van der Laan and Salomon (1997) researched the "PUSH" and "PULL" strategy of each cycle counting model without considering the conditions, found in the lower rate of return of waste materials occasions Whatever strategy its cost differences are negligible; when used goods return rate is very high "PULL" strategy is more appropriate[2].
In addition, by calculation, when α=0.2, the average total cost of ordering an increase of approximately 42%, when α=0.6, the average total cost of ordering an increase of approximately 24%, thus infer shortage cost recovery of small to average greater impact on the total order cost, this is because the recovery is high, there is more recycling materials can be used to replenish inventory, out of stock a relatively small impact.
Computers & Industrial Engineering, Vol. 56, Issue 3, April 2009, p. 951-964.
Fleischmann (1997) proposed general loop supply chain management framework, pointing out two types of closed-loop supply chain can supplies inventory sources: First, from the external sourcing new raw materials or components to produce new products, two products is the recycling of waste reprocessing to return to the "new" product status[1].
Van der Laan and Salomon (1997) researched the "PUSH" and "PULL" strategy of each cycle counting model without considering the conditions, found in the lower rate of return of waste materials occasions Whatever strategy its cost differences are negligible; when used goods return rate is very high "PULL" strategy is more appropriate[2].
In addition, by calculation, when α=0.2, the average total cost of ordering an increase of approximately 42%, when α=0.6, the average total cost of ordering an increase of approximately 24%, thus infer shortage cost recovery of small to average greater impact on the total order cost, this is because the recovery is high, there is more recycling materials can be used to replenish inventory, out of stock a relatively small impact.
Computers & Industrial Engineering, Vol. 56, Issue 3, April 2009, p. 951-964.
Online since: July 2014
Authors: Cai Xia Fan, Wei Ping Zhao
Its basic principle is through the material under certain deformation can bear load to reflect the strength of the material.
Because the test principle is simple, convenient operation, stable data, accurately and reliably reflect all kinds of the bearing capacity of the road building materials (intensity), and thus widely used in the United States and the rest of the world.
And the use of the index, subgrade filling in the highway construction in our country, the right to choose, provide an important basis to ensure the quality of highway engineering, played a huge role.
Test procedures specified in the same kind of material is available in three different densities than test cases.
But here it should be pointed out that the p ~ l all is not convex type curve, in many cases is concave type, the bearing capacity have relationship with the material, such as the material of high bearing capacity, deformation is small, the curve is concave type; On the other hand, is a convex type.
Because the test principle is simple, convenient operation, stable data, accurately and reliably reflect all kinds of the bearing capacity of the road building materials (intensity), and thus widely used in the United States and the rest of the world.
And the use of the index, subgrade filling in the highway construction in our country, the right to choose, provide an important basis to ensure the quality of highway engineering, played a huge role.
Test procedures specified in the same kind of material is available in three different densities than test cases.
But here it should be pointed out that the p ~ l all is not convex type curve, in many cases is concave type, the bearing capacity have relationship with the material, such as the material of high bearing capacity, deformation is small, the curve is concave type; On the other hand, is a convex type.
Online since: December 2011
Authors: Kamal Ait Tahar, F. Taouche, Ne Hannachi
These studies use construction materials with standardized properties.
It presents a comparison between two families of beams (small beams and normal beams) out of BA with same materials what makes it possible to study the scale effect.
Other studies, Japanese women, [10] on brick walls confined by columns and beams out of reinforced concrete were made with the échelle1/2 by using the same properties as materials available in the building sites.
As the composite being integrated in the matrix, the physical interface with concrete still remains permanent and the adherence between the two materials is perfect.
Chateauneuf , :confinement of the Concrete Structures by Embedded Composite Grids » journal Key Engineering Materials Vol. 425, 2010 pp195-216, special volume is Trends in Composite Materials and their Design.
It presents a comparison between two families of beams (small beams and normal beams) out of BA with same materials what makes it possible to study the scale effect.
Other studies, Japanese women, [10] on brick walls confined by columns and beams out of reinforced concrete were made with the échelle1/2 by using the same properties as materials available in the building sites.
As the composite being integrated in the matrix, the physical interface with concrete still remains permanent and the adherence between the two materials is perfect.
Chateauneuf , :confinement of the Concrete Structures by Embedded Composite Grids » journal Key Engineering Materials Vol. 425, 2010 pp195-216, special volume is Trends in Composite Materials and their Design.
Online since: February 2021
Authors: Vu Ngoc Pi, Thanh Danh Bui, Thi Hong Tran, Ngoc Vu Ngo, Luu Anh Tung, Thanh Tu Nguyen, Tran Ngoc Giang, Thi Quoc Dung Nguyen
Akintseva A.V, Automatic cycles multi-parametric optimization of internal grinding, International Conference on Industrial Engineering, Procedia Engineering 129, pp.121-126, 2015
A Study on Cost Optimization of External Cylindrical Grinding. in Materials Science Forum. 2020.
C., Micro-computer-based Optimization of the Surface Grinding Process, Journal of Materials Processing Technology 29 (1-3): 75-90, 1992
[11] Le Xuan Hung, V.N.P., et al., Determination of Optimal Exchanged Grinding Wheel Diameter when Internally Grinding Alloy Tool Steel 9CrSi, In IOP Conference Series: Materials Science and Engineering. 2018.
M Novák, N Naprstkova, and H Kasuga, Influence of Grinding Wheel Dressing on the Roughness of Final Surface and Cutting Force during GGG60 Grinding, Key Engineering Materials, 686, pp 218-223, 2016.
A Study on Cost Optimization of External Cylindrical Grinding. in Materials Science Forum. 2020.
C., Micro-computer-based Optimization of the Surface Grinding Process, Journal of Materials Processing Technology 29 (1-3): 75-90, 1992
[11] Le Xuan Hung, V.N.P., et al., Determination of Optimal Exchanged Grinding Wheel Diameter when Internally Grinding Alloy Tool Steel 9CrSi, In IOP Conference Series: Materials Science and Engineering. 2018.
M Novák, N Naprstkova, and H Kasuga, Influence of Grinding Wheel Dressing on the Roughness of Final Surface and Cutting Force during GGG60 Grinding, Key Engineering Materials, 686, pp 218-223, 2016.
Online since: October 2012
Authors: A.J. Ruys, N. Ehsani, C.C. Sorrell
Sorrellc
a Faculty of Materials and Manufacturing Technology, Malek Ashtar University of Technology, Tehran, Iran;
b Institute for Biomedical Engineering and Technology, University of Sydney, NSW Australia;
c School of Materials Science and Engineering, University of NSW, Australia.
Materials Science and Engineering C, 20 (1-2), 187-193, (2002)
Materials Science Forum, 530-531, 249, (2006)
Hot Isostatic Pressing. pp.194-201 in Engineering Materials Handbook. 4 Ceramics and Glasses.
Key Eng.
Materials Science and Engineering C, 20 (1-2), 187-193, (2002)
Materials Science Forum, 530-531, 249, (2006)
Hot Isostatic Pressing. pp.194-201 in Engineering Materials Handbook. 4 Ceramics and Glasses.
Key Eng.
Online since: March 2008
Authors: Christophe Maleville, Eric Neyret, Daniel Delprat, Ludovic Ecarnot
Starting with the 130 nm node, performance enhancements
were sustained by the introduction of new materials.
Thickness uniformity requirements have been tightened with last generations when junction and strain engineering in channel required partial etching of SOI layer.
Moreover, nano-uniformity control is also a key in decreasing laser scattering background, allowing wafer inspectability when monitoring defectivity.
Another key parameter for some specific processes is the ambient control.
Efficiency to remove those contaminants is the key factor in the ambient management.
Thickness uniformity requirements have been tightened with last generations when junction and strain engineering in channel required partial etching of SOI layer.
Moreover, nano-uniformity control is also a key in decreasing laser scattering background, allowing wafer inspectability when monitoring defectivity.
Another key parameter for some specific processes is the ambient control.
Efficiency to remove those contaminants is the key factor in the ambient management.
Online since: March 2024
Authors: Christian Iandiorio, Pietro Salvini
The Mathematical Model
This section outlines without delving the mathematical aspect in detail the key-points of the proposed model limited to pipes.
In view of a structural (engineering) shell theory, the boundary effects rapidly decay, therefore these are neglecting in this model.
The results, interesting from an engineering point of view, returns a dimensionless non-linear moment-curvature diagram valid for any pipe, taking into account whatever diameter, thickness and isotropic linear elastic material.
Timoshenko, Strength of Materials (Part I & II), Van Nostrand Company Publisher (1940)
Salvini, An Engineering Theory of thick Curved Beams loaded in-plane and out-of-plane: 3D Stress Analysis, Eur.
In view of a structural (engineering) shell theory, the boundary effects rapidly decay, therefore these are neglecting in this model.
The results, interesting from an engineering point of view, returns a dimensionless non-linear moment-curvature diagram valid for any pipe, taking into account whatever diameter, thickness and isotropic linear elastic material.
Timoshenko, Strength of Materials (Part I & II), Van Nostrand Company Publisher (1940)
Salvini, An Engineering Theory of thick Curved Beams loaded in-plane and out-of-plane: 3D Stress Analysis, Eur.
Online since: October 2009
Authors: Jia Tai Zhang, Wei Lin Wang
Research on Module Partition Strategy of Optional Disassembly
Wang Wei-lin1, 2, a
, Zhang Jia-tai1, 2, b
1
College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001,
China
2
Heilongjiang Modern Manufacturing Engineering Research Center, Harbin 150001, China
a
wangweilin@hrbeu.edu.cn, b
zhangjiatai@hrbeu.edu.cn
Keywords: optional disassembly; module partition; disassembly sequence
Abstract.
From economic point of view, it's no value to continue disassembling; or when they are recycled as material, they are recycled as a whole instead of continuing disassembly.
It is a most basic criterion that joint key element among the modules is convenient to connect and separate while maintaining the module complete integrity in structure.
From economic point of view, it's no value to continue disassembling; or when they are recycled as material, they are recycled as a whole instead of continuing disassembly.
It is a most basic criterion that joint key element among the modules is convenient to connect and separate while maintaining the module complete integrity in structure.
Online since: April 2014
Authors: Xin Xin Zhang, Wen Bo Luo, Xin Cui, Hai Bo Yuan
Comparative Studies of Boiling and Electrolysis on Micro Bubble Generation
Wenbo Luo1, a, Xinxin Zhang*1,2,b, Xin Cui3,c, Haibo Yuan1,d
1 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
2Beijing Key Laboratory of Energy Saving and Emission Reduction for Metallurgical Industry, University of Science and Technology Beijing, Beijing 100083, China
3 School of Electric Power Engineering, China University of Mining Technology, Xuzhou 221116, China
awenboluo@hotmail.com, bxxzhang@ustb.edu.cn, ccuixin30409@163.com, dyhb8587@163.com
Keywords: bubble generation, boiling, electrolysis.
First, a 0.5mm thickness of glass substrate(Pyrex7740) is coated with a layer of photoresist (AZ5214), and then put a shadow mask on the photoresist material for photolithography , developing and opening the windows of the actuators.
Lin, Microscale Thermophysical Engineering, ,vol. 2, (1998),p. 71-85
First, a 0.5mm thickness of glass substrate(Pyrex7740) is coated with a layer of photoresist (AZ5214), and then put a shadow mask on the photoresist material for photolithography , developing and opening the windows of the actuators.
Lin, Microscale Thermophysical Engineering, ,vol. 2, (1998),p. 71-85