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Online since: September 2016
Authors: Ruslan Razinovich Galeev, Lyailya Abdullovna Abdrakhmanova, Natalya Vyacheslavovna Maisuradze
Microphotographs of the structure and interpretation of the connection of the properties of the composites and their structure are presented below.
It is necessary to know only the stability of the properties of waste and their physical and chemical and other properties that affect the components interaction of the polymer mixture components, and therefore the conditions of formation of the structure of composites and the end-use performance properties.
Thus the change of state and properties of the surface of filler particles takes place: pH, penetrative power, surface energy.
The degree of saturation of the filler surface with the active functional groups may adjust the nature of connections on the interfacial bond and thus the properties of filled polymers.
The amount of this pressure depends on various factors including the amount of the coefficients of thermal expansion of the components.
Online since: September 2024
Authors: Cosmin Chiorean, Lajos Imre
The majority of the available methods to model the radiative heat flux are based on prescriptive values of the surface thermal properties of the participating medium, which do not take into account the specific geometry of the system and the effective values of the thermal properties of the participating medium.
The prescriptive method assumes that the terminal properties of the participating medium are independent of the temperature and the wavelength of the electromagnetic radiation.
The evaluation of the thermal properties of the fame involves the influence of soot, which may enhance on a quantitative scale the radiative heat flux up to 42 [%].
The emissivity coefficient of the gaseous environment is set by summing the emissivity coefficients of the combustion gases, multiplied by correction factors of the partial pressures and the band overlapping of the emitting spectrum, presented in Eq. 12. [4] εg≈εH2O+12∙εCO2
Radiative properties of soot particles. [4] Fuel type Chemical composition κs [1⁄m] fv×10-6 Ts [K] Obs.
Online since: March 2004
Authors: Y.H. Fu, Yun Xia Ye, Yong Kang Zhang, Lan Cai, Jian Zhong Zhou
Traditional CO2 and YAG lasers have been extensively used in cutting, welding, drilling, marking and modifying surface properties and so on.
In fact, as the result of lower melting point and fine heat transmission properties of metal, the narrower the laser pulse, the better effect.
Narrow pulsed width cause little energy loss and smaller heat affected zones.
The determinant factors are essential to choose the parameters.
In addition, other than the above parameters, several factors, such as the wavelength, also require consideration.
Online since: August 2011
Authors: Juan Tan, Yan Zhen Yu, Long Long Gao
Because grain slag and the coal gangue used as the experimental materials were all belonging to the barren material, the method of pressure molding was used in this experiment considering the forming properties of the test sample.
The factors that influence sintered brick mainly are the proportioning of raw material , the molding pressure, the sintering temperature, holding time [3,4].
Now all the factors and the levels ware listed random in Table 2, results in Table 3.
Conclusion The grain slag is one waste slag with poor mechanical properties,the grain slag is combined with YellowRiver silt and coal gangue under certain technological parameter level, we can get the grain slag brick which can satisfy the demands of MU30 grade in the standard of GB5101- 2003.
The study of strength and pore structure properties of slag-fly ash blended cement with low clinker, New Build.
Online since: November 2022
Authors: A. Shanmuga Vadive, P. Selvakumar, P. Mathan, P. Ramkumar
Surprisingly, some of these properties are what These materials' great value in high-performance engineering applications is due to their unique properties.
Tool wear and wearing, better surface finish, chipping structural properties, and cutting force were used to evaluate service quality.
For this to happen, cryogenic LN2 must be used because of its lubricating properties at the chip–tool and work–tool interfaces.
As a result of these factors, the temperature of the chip–tool interface rises.
Variation in the surface roughness metric's mean at different values of factors. 9.
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].
Online since: September 2013
Authors: Guang Qin Cui, Zeng Rong Liu, Chen Guang Ma
The structural property is mainly due to soil deposition conditions, distribution property of void and cementation between soil particles.
XIE (1999)[2] emphasized the fundamental influence of soil structure on mechanical properties of soil, which was later confirmed in many researches[3-4].
Liu etc (2002) [6] introduced 3 structural parameters to Modified Cam Clay (MCC) model to take into account the affect of soil structure.
But most traditional constitutive models have not taken these factors into consideration simultaneously.
Assessment of engineering properties of Bangkok clay.
Online since: May 2013
Authors: Long Fa Wu, Sheng Qu
Introduction The track inspection car is a technology-intensive product and it consists of electrical, mechanical, pneumatic, hydraulic components, computer, laser as well as automatic control system.
The main difference is the installation of track measuring beam, which is the installing support of inspection equipments, while the installation of track measuring beam and other inspection equipments will affect the mode of bogie frame and induce the loading on the bogie frame end, which will affect the strength of the bogie frame and other connection parts.
After the track measuring beam installation, the safety margin of the bogie frame end reduces from 54.36MPa to 116.84MPa and the safety factor reduces from 69.32 to 4.78.
Table 2 Fatigue strength of the whole bogie frame and bogie frame end with and without the measuring beam Bogie frame condition Whole bogie frame Bogie frame end Without the measuring beam With the measuring beam Without the measuring beam With the measuring beam Safety margin 85.73MPa 77.96MPa 154.36MPa 116.84MPa Safety factor 2.21 1.895 69.32 4.78 3.
[3] Traction Power State Key Laboratory, 3rd Vehicle Dynamics Property of Inspection Car at Shuohuang Railway, Southwest Jiaotong University, 2012.10
Online since: October 2014
Authors: Kun Li, Xue Bin Li
Affect the factor mainly is the size of the pressure drop ratio and Outlet ratio.
Functional Performance: Working mechanism of the cyclone is mainly using the characteristics of flow field of production, including centrifugal force or super gravity and shear properties, etc.
(2) When the Rf smaller or close to zero, as the traditional, solid-liquid separation hydro-cyclone ; When the Rf larger or close to 1, as the Colman-Thew hydro-cyclone, Many factors affect the pressure drop, mainly includes operating parameters such as the inlet Reynolds number Rei, structure parameter Do/D, Du/D, L/D and physical property parameterμandρ.
As a result, the length to diameter ratio may be caused by the three kinds of typical structure of the cyclone the main factors of energy consumption differences.
Factors influencing the flow rate of the Do/D, Du/D, PDR, Re and L/D, but mainly depends on Outlet ratio and pressure drop ratio.
Online since: June 2012
Authors: Mei Yang, Peng Fei Zhang, Ling Ye Leng
Introduction It is a popular task for scholars to study the mechanical properties of corroded reinforced concrete structure.
The Level of Current Density and The Polarization Time Group Cover thickness/mm current density /() Time for induced corrosion /h Z5 and Z6 15 120 720 Z7 and Z8 20 200 480 Fig.1 Corrosion circuit Influence factors of steel corrosion rate and control process 3.1 Predicted degrees of corrosion calculation formula Converting the current flow by Faraday’s law to metal loss: (1) Where △W is mass of steel consumed (g); A is atomic weight of metal (56 g for Fe); I is current (A); t is time (s); n is ionic charge (2); F is Faraday’s constant (96500 A/s).
So concrete cover quality directly affects the corrosion rate.
Corroded reinforced concrete cracking conditions According to the existing literature on this topic, there are three parameters affect the cracking corrosion quantity: fcuk=the compressive strength of concrete, R=steel bar diameter and(R+C)/C.
Mechanical industry press, Beijing, 1997
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