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Online since: March 2012
Authors: Noppadon Kerddonfag, Wannee Chinsirikul, Onusa Saravari, Kodchagorn Keeratichiraththitikan
The addition of a nucleating agent to PP leads to an improvement in the mechanical and optical properties.
Tensile and optical properties were also investigated.
The obtained extrudates were pelletized and then examined for their thermal properties using differential scanning calorimetry (DSC) technique.
In this work, the thermal properties of the neat PP and PP/pigment mixtures were analyzed by DSC.
The tensile properties and clarity of PP were better with phthalocyanine blue addition.
Online since: May 2011
Authors: Qi Guo
This may greatly affect the durability and life, and even lead to safety disaster [2].
However, limited by something such as properties of concrete and reinforcement, maintenance and humidity condition, craft for prestressing and so on, the NDT technique on prestressing strand is still start from scratch [3-5].
In procession of the experiment, there are altogether five factors which are sensitive to the accuracy of tested stretching force.
Conclusions ●Because this technique synthesize many aspects’ influential factors including local deformation, analogy boundary condition, bending and tensile stiffness of stretching cable wire etc, it has the advantages of clear concept and strong adaptability.
Mechanical Systems and Signal Processing, Vol. 20 (2006) , p. 2186
Online since: October 2009
Authors: Qing Xin Meng, Kun Yu, Yu Qing Xu, Zhi Dan Xu
A Layout Method for Control Panel of Thermal Power Plant Xu Yu-qinga , Meng Qing-xinb, Yu Kun c, Xu Zhi-dan d College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin, China a xuyuqing@hrbeu.edu.cn, bmengqingxin@hrbeu.edu.cn, cyukun@hrbeu.edu.cn, dxuzhidan@hrbeu.edu.cn, Keywords: layout; genetic algorithm; optimization; control panel Abstract.
Six layout principles of ergonomics are taken into consideration to reduce the influences of indeterminate factors caused by the subjective judgments of designers.
Introduction The layout design of control panel can obviously affect system efficiency, safety, the operators' judgment and decision-making under emergency in thermal power plant.
However, control panel layout is difficult to be modeled by binary, for so many different kinds of components and properties.
Online since: January 2013
Authors: Yunn Lin Hwang, Shen Jenn Hwang, Yi Hung Tsai
Introduction One of the key factors affecting gear drive dynamic property is the tooth profile.
Babalik: International Journal of Mechanical Sciences, 50( 2008),p1598-1610
Online since: May 2011
Authors: Jiang Tao Kong, Xiang Liu, Zhen Ning Gao
The vibration would not only bring forth the tower's extra-stress which will affect the structural strength, but also affected the distortion and vibration of the wind wheel.Meanwhile, it's possible that the tower would resonate with revolving wind wheel and thus affected the performance of wind units[1].
Over the past decade, as it has features such as it won't affect the normal use ,it only need to determine the dynamic response of structure and it need not expencive excitation set,the research of Modal Analysis of vibration caused by Ambient Excitation has been a popular subject in recognition system of civil engineering[2].
Vibration Test Testing Principle It's difficult to adopt controllable factitious exciter such as sine wave and impulse to test the vibration of the tower of wind driven generator, and the test will be affected by force magnitude, the weight and hardness of hammer, the position of percussion point.
Acknowledgements 2009MS0718 The Nature Science Foundation Projects of Inner Mongolia, Research On Mechanical Properties And Dynamic Response of Large Wind Tower; 51068021 The National Natural Science Foundation, Research on Performance Analysis and Design Method of Lattice Concrete Filled Steel Tube Wind Tower.
Vol. 42 (2009), p. 31 In Chinese [4] Chong REN, Wei ZHANG and Fuquan ZHANG: Mechanical & Electrical Engineering Technology.
Online since: November 2003
Authors: K.E. Tanner
Based on the properties of bone and the required biological response, an ideal material can be defined.
To improve the mechanical properties of HA-PE hydrostatic extrusion was performed in collaboration with the IRC in Polymer Science and Technology, Leeds.
One of the major problems with the current generation of calcium phosphate-polymer composites has been their low mechanical properties, meaning that they can only be used in minor load bearing applications.
For the PE based composites the initial mechanical testing has consisted of tensile testing half size ISO 527 dumbbell specimens, at a cross-head speed of 5 mm min -1, using an MTS Bionix biaxial servo-hydraulic mechanical testing machine to define the basic tensile mechanical properties.
Katz: in "Mechanical Properties of Bone" ed S.C.
Online since: March 2011
Authors: Hasan Gedikli, Ömer Necati Cora, Muammer Koç
Therefore, mechanical behavior of aluminum alloys has been both experimentally and numerically studied extensively at elevated temperatures [1-5].
Selection of appropriate constitutive laws and use of accurate material parameters for material of interest are critically important factors affecting the reliability of numerical analyses [6-8].
Geometric properties of the bulge tests for AA5754 sheet metal To take advantage of symmetry, quarter of the part was modeled in finite element simulations.
Mechanical properties for AA 5754-O sheet blank such as Young’s modulus, Poisson’s ratio and density were acquired from literature as 68 GPa, 0.33 and 2.66 g/cm3, respectively.
Die opening geometry (circular or elliptical) was found to be significantly affecting dome height, and sheet blank thinning.
Online since: September 2013
Authors: Muhamad Nur Misbah, Nurul Diyana Jamil, Mohd Nazree Derman, Juyana A. Wahab
The nature of an electrolyte used for aluminium anodising is a key factor which determines the type of oxides grown on the surface [1].
It was reported that some mixed acid and organic acid as anodising electrolytes can decrease the film dissolution rate, then increase the film formation efficiency and improve the film properties [6].
Since the AAO membrane characteristic were affected by anodising voltage, the controlling of the anodising voltage is essential in order to gain desired characteristic of AAO membrane for specific purpose [9].
Some formation factors affecting the dissolution behaviour of anodic oxide films on aluminum in H3PO4.
International Journal of Mechanical and Materials Engineering (IJMME), Vol. 5, No. 1, 53-58
Online since: January 2019
Authors: Quan Yang, Xiao Chen Wang, Jian Wei Zhao
Introduction The strip market is increasingly demanding the quality of strip products which not only must meet a good mechanical property but also a high accuracy of thickness and shape.
In order to make the strip have better mechanical properties, micro-alloys are usually used to control the evolution of microstructure during hot rolling.
However, the evolution of microstructure will also change the mechanical behavior of the strip deformation process, which in turn affects the rolling force of each pass.
It can be calculated by Eq. 15 proposed by Kocks [22], (15) where τ0 and Δf0 are the dimensionless optimization factors, εref is a constant representing the reference strain rate.
Broudy, Dislocations and mechanical properties of crystals, John Wiley, New York, 1957
Online since: September 2017
Authors: A.N. Belyaev, B.I. Degterev, I.V. Flegentov
The authors analyzed the papers of some scientists and carried out the quantitative assessment of the wear rate of erosion- treatable plates depending on different factors.
Geometrical parameters of the inducers also affect the cavitation degree.
Gusev, Nanocrystalline Materials: Generating Methods and Properties, Russian Academy of Sciences.
Sosnin and others, Mechanical Engineering.
IV-3 Mechanical Engineering, Moscow, 1998
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