Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: February 2013
Authors: Ning Mao, Jing Xian Liu, Bao Zhi Chen, De Qiang Chang
At present, the research of PPS filter media mainly concentrated in failure reason analysis of filter media in use and the influence of flue gas compositions on the performance of filter media, and the high-temperature performance of PPS filter media was studied mostly by changes of mechanical performance under high temperature[3-5].
According to the TG and DTG curves of PPS filter media, heating rate affects the thermal weight loss significantly.
When the rate of thermal degradation is low, the thermal degradation rate of PPS filter media thermal degradation product is less than the diffusion rate, the thermal degradation process is less affected by the diffusion process, Thus kinetic parameter value is low; When thermal degradation rate increases, the thermal degradation rate may exceed the diffusion rate through melt of thermal degradation products, the thermal degradation of the polymer by the thermal degradation of control into a diffusion controlled process, the resulting kinetic parameters value increases.
Research on Mechanical Properties of Filter Media under High Temperature[A].Northeastern University.
Mechanical degradation of filter polymer materials: Polyphenylene sulfide.
Online since: December 2016
Authors: Martin Labaj, Karel Mikulica
The experimental part deals with the general assessment of the behavior and properties of foam concrete.
Besides the construction speed up and the overall cost reduction the improvement in mechanical properties of the roof structure has been achieved.
All though depends on the desired bulk density, dosage of expanded polystyrene beads and resulting physico-mechanical properties.
Well-designed foam concrete can achieve the same thermal insulating properties as the one with the addition of expanded polystyrene, while maintaining the physico-mechanical properties.
Production technology of cement foam concrete and their properties.
Online since: October 2016
Authors: Habib Nasir, Syed Sajid Ali Shah
Recently, graphene has played a promising role due to its exceptional mechanical and thermal properties and the broad range of applications.
It has outstanding electrical, thermal and mechanical properties [1].
A nano-composite material has good mechanical, thermal, catalytic, electrochemical and electrical properties.
The functionalized graphene showed better mechanical, thermal, and dynamic mechanical properties, as compared to reduced graphene/PU nanocomposites [78].
The homogenous dispersion of graphene in the polymer matrix is very important factor to enhance the properties of polymer nanocomposite.
Online since: October 2010
Authors: Kai Feng Zhang, Hui Gai Wang, Fei Wang, Yan Pei Song
Through ΔH and ΔD, the friction factors (m) were obtained.
Many factors may affect the m value in practical tests such as the surface roughness, the test temperature, the strain rate, the geometry of the specimen, etc..
So the friction factor is not affected by the increase of temperature.
The friction factors at higher strain rate are obviously higher than those at lower strain rate.
The strain hardening begins to affect the flow of ring material.
Online since: April 2020
Authors: Branislav Cvopa, Pavel Martauz, Vojtěch Václavík
An analysis of the tests results showed that the mineralogy, morphology and strengths of aggregates are factors affecting the compressive strength and durability of HPC [11].
Table 3 Chemical properties of cements.
Testing the concrete properties.
Cheng, Factor sinfluencing the properties of a steels lagcomposite cement, Adv.
Tests for mechanical and physical properties of aggregates - Part 6: Determination of particle density and water absorption.
Online since: April 2005
Authors: Pavel Lejček, Vendula Havlová
Introduction Mechanical properties of materials depend on parameters such as their thermal treatment, type and concentration of solutes and impurities, presence of secondary particles and their size and dispersion, and grain structure including their texture, grain size, grain boundary orientation and topology.
In intergranular brittle fracture representing a very important reduction of the strength, it is necessary to consider anisotropy of interfacial properties.
It is generally accepted that high-angle grain boundaries are classified as (i) high energy general grain boundaries with an easy tendency to intergranular fracture, (ii) low energy singular (special) grain boundaries with the properties close to those of the bulk, and (iii) transitive vicinal grain boundaries [1].
Based on this consideration, the Grain Boundary Engineering concept was proposed to produce materials with optimum properties by controlling the grain boundary character and distribution in their structure [2].
The grain boundary migration is then affected by this interaction as is reflected by changing the value of n in Eq. (2) and another mechanism of grain boundary migration should be considered.
Online since: September 2011
Authors: Liu Min, Jun Ying Tian, Mei Yan Liu
But wool raw materials can not meet the demand of textile industry, wool fiber production is influenced by many factors such as geographic conditions.
Sodium alginate produced by Shanghai cognis chemical Co., LTD Warmth retention test Warmth retention is tested according to GB/T11048-89《Testing method for warmth retention property》with ASTM plate-type fabric warm apparatus.
Dyeing properties of wool-like fabric improved also.
How Alkali Treatments Affect Selected Properties Of Polyester, Cotton and Polyester/Cotton Fabrics.
China Textile Leader.2009,(1):77~80 [5] Matsudaira Mitsuo,Matsui Masao,Changes in the Mechanical Properties and Fabric Handle of Polyester-fibre Fabrics Through the Finishing Stages[J],Journal of the Textile Institute,1992,83(1):144-155 [6] Sheth Geeta N., Musale Aparna A.
Online since: June 2009
Authors: Hua Jiang Ouyang, Luis Baeza
This approach takes advantage of the properties of modes and the formulas look elegant and efficient.
(3) If there is a crack at cxx = , it will affect the dynamic behaviour of the beam when it is open.
(7) where the non-dimensional crack stiffness factor cα depends on the properties of the beam and the crack.
Chang: International Journal of Mechanical Sciences Vol. 48 (2006), p. 1456 [8] T.G.
Golinval: Mechanical Systems and Signal Processing Vol. 20 (2006), p. 505 [25] S.
Online since: April 2015
Authors: Jian Can Yang, Wen Guan Zhu, Jie Cao, Lin Hu
Adding rare earth can improve the electron emission properties of tungsten, but at the same time it increases the strength of the material, causing processing performance poor.
A pulse current through the forming workpiece, the mechanical forming load decreases immediately, then returned to its prior value.
Mears, Several Factors Affecting the Electro- plastic Effect During an Electrically-Assisted Forming Process, J.
Mears, Thermomechanical modeling sensitivity analysis of electrically assisted forming, Proceedings of the Institution of Mechanical Engineers, J.
Mears, A thermal-based approach for determining electroplastic characteristics, Proceedings of the Institution of Mechanical Engineers, J.
Online since: July 2011
Authors: Yu Qian Wang, Zhan Ying Liu, Jin Chen
In austenite and ferrite dual-phase region, because of different properties of dual-phase microstructure, deformation occurres incongruously in dual-phase microstructure.
These two sides affects deformation resistance.
Mathematic model of deformation resistance The relationship between deformation resistance and its influencing factors is shown as follows
is influencing factors of chemical composition and structural state.
This mathematic model provides basis for calculation of mechanical property parameters of micro-carbon steel rolled in ferrite region.
Showing 17901 to 17910 of 26166 items