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Online since: September 2013
Authors: Hong Zhang
This will query and manage projects bring great convenience, giving the property management work to bring greater efficiency, which is the property management standardization, modernization and an important symbol.
For owners of the system also provides two functions, one is published complaints function for the owners to make their own property management division of property management comments and suggestions.
Both views are the people in different locations normal psychological response, these subjective factors aside, a proper understanding of the objective test is important because the target to determine the direct decided to test the design, and ultimately affect the test results correctness of the program evaluation.[8-10] 3.2 White Box White-box testing, also known as structural testing or logical drive test, which is in accordance with the internal procedures of the structure test procedures, test to detect whether the action inside the product design specifications in accordance with the provisions of normal, test whether each path in the program can press reserve requirements to work properly.
Property management platform designed to achieve a basic functional requirements.
Introduction to Database Systems, Beijing: Mechanical Industry Press, 2002 [11] 2000 software reported [J].
For owners of the system also provides two functions, one is published complaints function for the owners to make their own property management division of property management comments and suggestions.
Both views are the people in different locations normal psychological response, these subjective factors aside, a proper understanding of the objective test is important because the target to determine the direct decided to test the design, and ultimately affect the test results correctness of the program evaluation.[8-10] 3.2 White Box White-box testing, also known as structural testing or logical drive test, which is in accordance with the internal procedures of the structure test procedures, test to detect whether the action inside the product design specifications in accordance with the provisions of normal, test whether each path in the program can press reserve requirements to work properly.
Property management platform designed to achieve a basic functional requirements.
Introduction to Database Systems, Beijing: Mechanical Industry Press, 2002 [11] 2000 software reported [J].
Online since: November 2007
Authors: Shahrum Abdullah, Azman Jalar, Z. Endut, I. Ahmad, Suhaila M. Yusof
However, the dicing
process for DAF wafer usually associated with sidewall chipping, DAF whiskering and crack that
will affect reliability of Quad Flat Non-Leaded (QFN) stacked die.
Blade properties and characteristics are the crucial factor in analyzing the DAF dicing results.
Introduction Wafer dicing is mechanical process used in the microelectronics industry for die separation.
The silicon die is known to be brittle in property, where else DAF tape is made up from vicious liquid polymeric materials with silica or alumina filler is added to change the DAF properties.
Blade properties and characteristics are the crucial factor in analyzing the DAF dicing results.
Introduction Wafer dicing is mechanical process used in the microelectronics industry for die separation.
The silicon die is known to be brittle in property, where else DAF tape is made up from vicious liquid polymeric materials with silica or alumina filler is added to change the DAF properties.
Online since: August 2006
Authors: Irina Trendafilova
There a lot of factors that frequently cause damage on aircraft
wings, which often remains invisible on the surface.
Present designs of aircrafts use large safety factors to account for possible impact damage, which makes them heavier and more expensive.
There are two main types of damage that occur most frequently in aircraft wings: concentrated damage in the form of a crack, which might be due to collision and external factors and distributed damage in case when damage has spread to cover a part of the wing [1].
The material properties of the volumes can be altered individually.
Van Overmeire: Mechanical Systems and Signal Processing, vol. 16(4), (2002), p.637
Present designs of aircrafts use large safety factors to account for possible impact damage, which makes them heavier and more expensive.
There are two main types of damage that occur most frequently in aircraft wings: concentrated damage in the form of a crack, which might be due to collision and external factors and distributed damage in case when damage has spread to cover a part of the wing [1].
The material properties of the volumes can be altered individually.
Van Overmeire: Mechanical Systems and Signal Processing, vol. 16(4), (2002), p.637
The Research of Industrial Brake Temperature Measurement Based on Nano-Materials and Nano-Technology
Online since: April 2014
Authors: Quan Wei Wang, Xiao Mei Chen, Hao Wen, Dong Yao Geng, Yan Ting Chen
Relevant statistics show that the hoisting machinery accidents caused by unserviceable brake accounts for about 20% of the total, and the braking temperature is one of the main influence factors.
(3) The design of the temperature measuring points is affected by many factors.
Theoretically, these schemes, which have high precision, good dynamic characteristics and wide range, are suitable to measure the temperature and temperature field’s change properties of moving object.
Compared with nonmetal, these factors have more effect on mental, which make a big difference when mental has different surface state.
Develop new thermoelectric conversion nano-materials, which have such properties of constant friction coefficient, good wear resistance, high thermal energy conversion performance, high temperature resistance, etc, to apply in temperature sensor.
(3) The design of the temperature measuring points is affected by many factors.
Theoretically, these schemes, which have high precision, good dynamic characteristics and wide range, are suitable to measure the temperature and temperature field’s change properties of moving object.
Compared with nonmetal, these factors have more effect on mental, which make a big difference when mental has different surface state.
Develop new thermoelectric conversion nano-materials, which have such properties of constant friction coefficient, good wear resistance, high thermal energy conversion performance, high temperature resistance, etc, to apply in temperature sensor.
Online since: December 2011
Authors: Cui Jiao Liao, Qing Ming Weng, Hua Xu
The forming of the interstice pore is concerned with these factors such as the molding density, the powder particle size, the particle distribution, the shape of the particle and the compaction property of the powder.
So, the generate pore is decided by these factors such as the style of the inducer, the particle size, the shape of the particle and the added amount.
The sintering temperature is an important technology parameter which decides the mechanical property of the diamond segment.
The pressing pressure is another important technology parameter which decides the mechanical property of the diamond segment.
Scanning electron microscopic study and mechanical property examination of a bond bridge: Development of a porous metal bonded diamond wheel.
So, the generate pore is decided by these factors such as the style of the inducer, the particle size, the shape of the particle and the added amount.
The sintering temperature is an important technology parameter which decides the mechanical property of the diamond segment.
The pressing pressure is another important technology parameter which decides the mechanical property of the diamond segment.
Scanning electron microscopic study and mechanical property examination of a bond bridge: Development of a porous metal bonded diamond wheel.
Online since: July 2014
Authors: Wei Chen, Xiang Peng Li, Ting Ting Chen, Xiao Yang Wang, Chao Chao Ma
.; class Ⅰ fly ash; medium sand(with fineness modulus of 2.46); gravel(with the maximum size of 26.5mm); polycarboxylic acid superplasticizer; the chopped basalt fiber, which is made in TuoXin Basalt Industrial Co. of Si Chuan province, Main mechanical property of basalt fiber is shown in Table1.
Table 1 Main mechanical property of basalt fiber Diameter (μm) Density (kg.cm-3) Elasticity modulus (Gpa) Tensile strength (Mpa) Elongation at fracture (﹪) 15 2.65 95~115 3300~4500 2.4~3.0 Experiment Design.
Test Results and Theoretical Analysis Cracking load and factors.
L-0-0 L-1-12 L-2-12 L-1-30 L-2-30 Fig. 2 Collapse state of beams in shear compression section Cracking Development and Factors.
Based on Fig.1 and the principle of composite materials, the multiply of the volume ratio and the aspect ratio of fiber which is the main parameter to affect the mechanical properties of fiber concrete can be defined as the characteristic parameter of basalt fiber [5] and can be expressed as .
Table 1 Main mechanical property of basalt fiber Diameter (μm) Density (kg.cm-3) Elasticity modulus (Gpa) Tensile strength (Mpa) Elongation at fracture (﹪) 15 2.65 95~115 3300~4500 2.4~3.0 Experiment Design.
Test Results and Theoretical Analysis Cracking load and factors.
L-0-0 L-1-12 L-2-12 L-1-30 L-2-30 Fig. 2 Collapse state of beams in shear compression section Cracking Development and Factors.
Based on Fig.1 and the principle of composite materials, the multiply of the volume ratio and the aspect ratio of fiber which is the main parameter to affect the mechanical properties of fiber concrete can be defined as the characteristic parameter of basalt fiber [5] and can be expressed as .
Online since: March 2023
Authors: Sanjib Kr Rajbongshi
Surface finish has much significance in machining properties like friction, corrosion resistance, wear resistance, fatigue strength etc.
The tool rake angle, clearance angle and nose radius has affected machining properties like surface roughness, tool wear, cutting forces etc.
From ANOVA, feed rate followed by the cutting speed was the most dominant controlling parameters affecting surface roughness.
Dirviyam and Palanisamy [11] conducted an experimental plan with Taguchi’s OA, ANOVA and S/N ratio for finding the influential factors and their optimum combinations affecting surface roughness during dry machining operation of AISI 304 austenitic stainless steel bars using TiC and TiCN coating tungsten carbide.
In Table 2, 1 and 2 represents low and high values of cutting factors respectively.
The tool rake angle, clearance angle and nose radius has affected machining properties like surface roughness, tool wear, cutting forces etc.
From ANOVA, feed rate followed by the cutting speed was the most dominant controlling parameters affecting surface roughness.
Dirviyam and Palanisamy [11] conducted an experimental plan with Taguchi’s OA, ANOVA and S/N ratio for finding the influential factors and their optimum combinations affecting surface roughness during dry machining operation of AISI 304 austenitic stainless steel bars using TiC and TiCN coating tungsten carbide.
In Table 2, 1 and 2 represents low and high values of cutting factors respectively.
Online since: May 2016
Authors: Piyalak Ngernchuklin, Arjin Boonruang, Nestchanok Yongpraderm
Effect of Milling Time on the Properties of BYF Doped PZT Energy Harvesting Ceramics by High-Energy Ball Milling.
Besides, an important factor for desirable properties of ceramics was to control the particle size distribution and homogeneity of the powders.
The dielectric constant (K33T), the dissipation factor (tan d), the electromechanical factor (kp) with an impedance analyzer (4192A LF Hewlett Packard) at room temperature.
Electrical Properties Fig.4(a) presents the dielectric and piezoelectric properties of 0.99PZT-0.01BYF ceramics derived from various milling times.
(a-b)the electrical properties of 0.99PZT-0.01BYF ceramics derived from various milling times.
Besides, an important factor for desirable properties of ceramics was to control the particle size distribution and homogeneity of the powders.
The dielectric constant (K33T), the dissipation factor (tan d), the electromechanical factor (kp) with an impedance analyzer (4192A LF Hewlett Packard) at room temperature.
Electrical Properties Fig.4(a) presents the dielectric and piezoelectric properties of 0.99PZT-0.01BYF ceramics derived from various milling times.
(a-b)the electrical properties of 0.99PZT-0.01BYF ceramics derived from various milling times.
Online since: January 2016
Authors: Asrul Mustafa, Norhanifah Mohd Yazid, Ruslimie Che Ali
Miscibility affects the mechanical property, surface morphologies, permeability and degradation of the polymer latex blend.
This is owing to its excellent properties like oil resistance and low gas.
The miscibility and compatibility of the blend is observed via morphologies properties characterisation.
This solubility is suggested to be one of the factors which contribute to better miscibility between two polymer components.
Perena, Effect of crosslinking of the mechanical and thermal properties of PVA, Polymer. 41 (26) (2000) 9262-9272
This is owing to its excellent properties like oil resistance and low gas.
The miscibility and compatibility of the blend is observed via morphologies properties characterisation.
This solubility is suggested to be one of the factors which contribute to better miscibility between two polymer components.
Perena, Effect of crosslinking of the mechanical and thermal properties of PVA, Polymer. 41 (26) (2000) 9262-9272
Online since: June 2015
Authors: J. Nithyanandam, K. Palanikumar, Sushil Laldas
Prof., Dept of Mechanical Engineering, M.N.M.Jain Engineering, College
2 Dept of Mechanical Engineering, Sri Sai Ram Institute of Technology
3Dept of Mechanical Engineering, Jeppiaar Engg.
Titanium alloys are attractive materials used in different engineering applications, due to its excellent combination of properties such as high strength to weight ratio, good corrosion resistance and high temperature applicability.
Palanikumar have indicated that, the Surface roughness is an influencing factor as it affects the dimensional accuracy of a machining.
Membership function for Input parameter for Nose Radius Results and Discussions Titanium and alloys have superior properties like good strength to weight ratio and high corrosion resistance.
They are classified under difficult-to-Machine materials, due to high strength at high temperatures, increasing cutting forces, and their thermal properties.
Titanium alloys are attractive materials used in different engineering applications, due to its excellent combination of properties such as high strength to weight ratio, good corrosion resistance and high temperature applicability.
Palanikumar have indicated that, the Surface roughness is an influencing factor as it affects the dimensional accuracy of a machining.
Membership function for Input parameter for Nose Radius Results and Discussions Titanium and alloys have superior properties like good strength to weight ratio and high corrosion resistance.
They are classified under difficult-to-Machine materials, due to high strength at high temperatures, increasing cutting forces, and their thermal properties.