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Online since: October 2010
Authors: Esmaiel Jabbari
It is well-established that mechanical factors such as surface hardness and modulus as well as biochemical factors affect cell adhesion and spreading [21, 22].
The physical and mechanical properties of the laminates and the differentiation of seeded BMS cells can be further improved by varying fiber fraction and orientation, hydrophilicity of the PLOEF hydrogel, amount, size, and surface treatment of apatite nanocrystals, number of layers in the laminate, and conjugation of bioactive agents.
Jabbari, Material properties and cytocompatibility of injectable MMP degradable poly(lactide ethylene oxide fumarate) hydrogel as a carrier for marrow stromal cells.
Xu, Material properties and bone marrow stromal cells response to In situ crosslinkable RGD-functionlized lactide-co-glycolide scaffolds.
Xu, Material properties and bone marrow stromal cells response to in situ crosslinkable RGD-functionlized lactide-co-glycolide scaffolds.
Online since: January 2013
Authors: Wen Bai Liu, Li Juan Su, Jie Zhang
Desai[2] and others have done a large number of the contact surface of the direct shear and single shear test in which they studied the main factors of sand -structure interface.
Particle size ranges from 0.5mm to 1mm and the basic physical and mechanical properties are shown in Table 1.The instrument is the semi-mode direct shear apparatus , as shown in Fig.1.
Therefore compactness has effect on the mechanical properties of interaction between structure and sand sample.
Experimental study of the monotonous mechanical properties of interface between soil and the contact surface of structure[J].
Study of micromechanical properties of sand soil based on the direct shear test[J].
Online since: February 2022
Authors: Zhi Guo Gao
Since data of single-crystal material are scarce, thermal properties of Ni-based superalloy are directly used from previous publications
Various factors combination, i.e. low laser power and slow welding speed, restricts further improvement of heat input to importantly contribute to interface-controlled epitaxial growth of columnar morphology and ameliorate thermo- metallurgical ingredient for growth kinetics of γ phase.
Nucleation and growth of stray grain formation is considerably hindered by combination of low heat input and (001)/[100] welding configuration with mitigation of thermo-metallurgical factors for solidification cracking.
Microstructural response of heat-affected zone cracking of prewelding heat-treated Inconel 939 superalloy.
The effect of laser scanning strategies on texture, mechanical properties and site-specific grain orientation in selective laser melted 316 L SS.
Online since: April 2013
Authors: Rostislav Drochytka, Luboš Taranza
The originating waste raw materials can lead to, in most cases the development of secondary raw materials, and are, according to their material properties used in various industries.
One of the resulting factors of ecologic liquidation of this kind of wastes is, for example, use in the building industry.
Then the testing bodies were broken in half perpendicularly to the surface on which the water pressure was affecting.
The evaluation of the group of basic tests verified the influence of the fly-ash on the resulting properties of the waterproof levelling layer.
The main decisive criterion for the investigation of the further material properties of mixtures modified by the fly-ash was the positive evaluation of the waterproof properties according to ČSN EN 12390-8 “Depth of penetration by compressed water“.
Online since: June 2011
Authors: S. Thamizhmanii, Rosli Ahmad, S. Hasan
All these factors also contribute to the values of the cutting forces.
CBN and PCBN tools possess excellent mechanical properties such as high temperature strength, ability to maintain its shape at high temperature and hardness second to diamond [3].
The chemical and mechanical properties are shown in the tables 1 and 2 respectively. 1.2 Turning tests The turning experiments were conducted using on N.C.
Cr Mo P S AISI 440 C 0.95-1.20. 1.00 1.00 16-18 0.75 max. 0.04 0.03 Table 2: Mechanical properties of AISI 440 C.
The notch wear formed at the end of the tests. 1.4 Results and discussion on cutting forces A force is required to deform the material plastically and it is sensitive to certain factors.
Online since: November 2012
Authors: Guo Min Zhang, Sujeeva Setunge, Xiao Hua Jin, Ibrahim Mosly
Wind Wind turbines (WT) Wind turbines operate by converting kinetic energy from the wind into mechanical energy using its rotor.
After that, the mechanical energy is converted into electrical energy by its electrical generator (Hau, 2006).
These risk factors can be grouped into two main types, generic and specific.
Chun,, Factors affecting the implementation of green specifications in construction, Journal of Environmental Management, 3 (2010) 654-661
Yang, Factors influencing the implementation of the raised floor system in Australian office buildings, Construction Management and Economics, 5 (2006) 529 – 543
Online since: November 2021
Authors: Nutthita Chuankrerkkul, Tapany Patcharawit, Phongsathon Thongbo, Nitithorn Sengna, Piyanat Auttachon
Moulding of feedstock is the key step determining green and sintered properties.
Moulding speed investigated did not significantly affect mould filling and overall properties.
Moreover, transport mechanisms during sintering are now key factors indicating the final composite properties.
Senthilkumar, Experimental investigation on newly developed ultrafine-grained aluminium based nano-composites with improved mechanical properties, Materials & Design, 37 (2012) 182-192
Patil, Investigation of mechanical properties of carbon nanotubes reinforced aluminium composite by metal injection molding, Materials Today: Proceedings 5 (2018) 20690 – 20698
Online since: June 2010
Authors: Seung Boo Jung, Hyo Soo Lee, Hyeong Won Shin
Variation of Heat Dissipation Properties of LED Packages with Thermal Vias Hyo Soo Lee1,a, Hyeong Won Shin1,b, and Seung Boo Jung2,c 1 Advanced Material Division, Korea institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea 2 Dept. of Adv.
This excess heat should be conducted away from the LED die to circuit boards or heat sinks since heat affects directly performance of the LED.
The strucure of thermal via was drawn also as Fig. 1, which was the same as a pin-through hole in printed circuit board formed by mechanical drill process.
Chracterization of thermal properties of the LED were carried out by a 2 type of experiments.
And it was observed that the copper volume of inner layer in thermal via was dominant factor on the heat dissipation, which was also exactly correlated with thermal resistivity of each specimen.
Online since: April 2014
Authors: Jae Hong An, In Hwan Yeo, Kyu Jae Hwang, Jong Ho Lee
Thermal properties of steel materials and concrete as per temperature rise are shown as in Figure 1 and 2.
Thermal properties of Steel (Specific Heat, Conductivity, Density) In particular, cross-sectional loss caused by temperature raise of concrete members exposed to fire was evaluated using strength expected by means of effective cross-section at the target time through heat transfer analysis of members considering thermal properties of materials.
Elements of heat transfer applied in concrete, main steel and stirrup modeling are DC3D8 and DC1D2, which are factors of linear heat transfer analysis and also element of materials.
Figure 2.Thermal properties of Concrete (Specific Heat, Conductivity) Figure 3.
It was measured through the experiment on cross-sectional size, one of main factors that affects fire resistance of RC columns.
Online since: March 2011
Authors: Kari Mäntyjärvi, Markku Keskitalo, Toni Kiuru
The weld area always has different mechanical properties than the base material, especially with regard to fatigue strength.
The design of the structure is often very difficult, because the designer should take into account the challenging formation of UHS steels as well as the finite dynamic strength properties of the welds.
The behaviour of fatigue varies in welded and un-welded material because the mechanical properties and strain in the plain material are uniform throughout the material, but in the welded material the mechanical properties are different in all parts of the joint, such as in weld metal, HAZ (Heat Affected Zone) and basic material.
The mechanical properties are shown in Table 1.
Therefore, the weld shape is a very important factor.
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