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Online since: December 2010
Authors: Lu Chen, Lei Wang, Qi Lin Zhang
It has been reported that residual stresses may cause brittle fracture, crack propagation, fatigue life reduction and stress corrosion cracking [1-2].
(a) Three-dimensional illustration of model geometry, (b) finite element meshes A set of mechanical and thermal material property data at different temperatures is shown in Fig.2.
(a) Three-dimensional illustration of model geometry, (b) finite element meshes A set of mechanical and thermal material property data at different temperatures is shown in Fig.2.
Online since: February 2008
Authors: Wei Pan, Ruo Bing Han, Chun Lei Wan, Hui Wu
To data,
various technologies have been developed to prepare nano-structured materials, amongst them,
template method is one of the most controllable and efficient ways widely used.
While the template film is annealed at 400 o C, spheric pores in the nickel film after template removal separate again besides some of holes' aggregations as shown in fig. 2(d), mainly because of the reduction of surface areas of spherical particles as partially sintered at a higher temperature.
While the template film is annealed at 400 o C, spheric pores in the nickel film after template removal separate again besides some of holes' aggregations as shown in fig. 2(d), mainly because of the reduction of surface areas of spherical particles as partially sintered at a higher temperature.
Online since: September 2013
Authors: Aleksandr Petrov, Leonid L. Afremov
Introduction
It is known, that phase transition temperature in ferromagnetic, antiferromagnetic or ferrimagnetic ultrathin films decreases with reduction of its thickness [see, for example, 1 - 4].
Table Crystalline lattice Argument λ Calculated values Simple cubic (SU (100)) 1.802 Body-centered (BCC (100)) 1.599 Body-centered (BCC (110)) 1.609 Face-centered (FCC (100)) 1.581 Face-centered (FCC (111)) 1.585 Experimental values obtained at films CoOSiO2 λexp=1.55±0.05 [1], λexp=1.60±0.1 [2] It results from the table that values of λ calculated by us, are rather close to experimental data obtained in respect of films CoOSiO2 in which CoO has a simple crystalline structure kind of NaCl with FCC lattice.
Table Crystalline lattice Argument λ Calculated values Simple cubic (SU (100)) 1.802 Body-centered (BCC (100)) 1.599 Body-centered (BCC (110)) 1.609 Face-centered (FCC (100)) 1.581 Face-centered (FCC (111)) 1.585 Experimental values obtained at films CoOSiO2 λexp=1.55±0.05 [1], λexp=1.60±0.1 [2] It results from the table that values of λ calculated by us, are rather close to experimental data obtained in respect of films CoOSiO2 in which CoO has a simple crystalline structure kind of NaCl with FCC lattice.
Online since: October 2014
Authors: Tao Wang, Yu Ying Wang, Gui Hua Lin
The transmission losses calculation is the foundation of the electricity sector's energy consumption calculation, statistics, analysis and loss reduction.
References [1] XU hanping, HOU Jinfeng, SHI Liuzhong. calculation method of power system line losses based on data of state estimation. power system technology, 2003,23(7):59-62
References [1] XU hanping, HOU Jinfeng, SHI Liuzhong. calculation method of power system line losses based on data of state estimation. power system technology, 2003,23(7):59-62
Online since: August 2015
Authors: Napat Krachangchaeng, Sakorn Po-Ngam
The UPS is usually used in a communication systems, data processing systems, medical equipment, and computers.
In order to achieve these requirements, the PFC improvement and harmonics reduction were applied in to inverter system.
In order to achieve these requirements, the PFC improvement and harmonics reduction were applied in to inverter system.
Online since: December 2014
Authors: Mária Hagarová, Ondrej Milkovič, Jana Michaliková, Matúš Horváth
The FIT2D software was used for radial-data-integration into the 2Θ space [6].
The increase of current density of electrodeposition process resulted in decreasing of Co concentration in Ni-Co solid solution which led to the reduction of lattice parameter.
The increase of current density of electrodeposition process resulted in decreasing of Co concentration in Ni-Co solid solution which led to the reduction of lattice parameter.
Online since: October 2007
Authors: Cheol Gi Kim, Chong Oh Kim, S.I. Park, J.H. Kim
Introduction
The development of magnetic nanoparticles has been intensively pursued due to their broad
applications including biomedical system, magnetic data storage, and catalysis [1-3].
Finite size effects have been reported to be responsible for the reduction of saturation magnetization of nano CoFe2O4 [11].
Finite size effects have been reported to be responsible for the reduction of saturation magnetization of nano CoFe2O4 [11].
Online since: August 2013
Authors: Xue Mei Jiang, Kai Kang, Hua Jun Dong, Yi Han Kong
In recent years, due to the continuous development of computer hardware, the constant improvement of the speed and ability of data processing, as well as the continuous perfection and development of computer technology, image processing and pattern recognition technique, many domestic and foreign universities and research institutions have tried to use computer to replace artificial detection[2].
Its features and advantages are high degree of automation, the reduction of artificial error and interference, great handling capacity of information, rapid and convenient to storage and retrieval, etc.
Its features and advantages are high degree of automation, the reduction of artificial error and interference, great handling capacity of information, rapid and convenient to storage and retrieval, etc.
Online since: October 2011
Authors: Lian Yu Wei, Ti Song, Wen Xia Sun, Wen Feng Sun
The complex and changing engineering geological conditions,the limitations of survey data and the imperfect related design theory make the project encounter some inevitably accidents.
,J.C.Hershey,and H.Kumreuther,2000,Determinants of priority for risk reduction:the role of worry,Risk Analysis 20(4),413-427 [6] LI Jing-jing, HU Hao, XIA Xiao-he.
,J.C.Hershey,and H.Kumreuther,2000,Determinants of priority for risk reduction:the role of worry,Risk Analysis 20(4),413-427 [6] LI Jing-jing, HU Hao, XIA Xiao-he.
Online since: February 2011
Authors: Xiao Ming Qian, Heng Zhang, Zhi Min Lu, Yuan Bai
To achieve cost reduction, the energy transfer from the high pressure water jet to the fabric need be understood.
The standard K- model employs values for the constants that are arrived at by comprehensive data fitting for a wide range of turbulent flows [7]: =1.44, =1.92, =1.00, =1.30.
The standard K- model employs values for the constants that are arrived at by comprehensive data fitting for a wide range of turbulent flows [7]: =1.44, =1.92, =1.00, =1.30.