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Online since: June 2013
Authors: Xiong Biao Chen, Xiao Yu Tian, Ming Gan Li
biomaterials cells Growth factors Figure 6.
When shear stress is applied to cells, they will deform due to the weak elastic mechanical properties.
It holds the promise to simultaneously integrate the multiphenotype of cells, the ECM materials and growth factor together to create artificial tissue constructs that mimic the mechanical, chemical and biological properties of native tissue.
For example, nerve guidance by means of certain growth factors can be realized by adding the growth factors to specific locations and orientations of fibres.
Vascular networks can be formed with appropriate distributions of endothelial or stem cells and the growth factors.
Online since: December 2007
Authors: Sih Li Chen, Ho Chang, Lung Yue Jeng, Ching Song Jwo
Results show that 25nm CeF3 nanoparticles are spherical and cylindrical in appearance, which display extremely good pressure and friction-reducing properties.
The anti-pressure and anti-friction properties (PB value)have been increased by 85.3% while the coefficient of friction has been reduced by over 25%.
These variations are manifested by factors such as temperature, pressure, lubricant molecular mass and molecular structure.
Therefore, nanoparticle content is one of the determining factors affecting heatconduction.
Guoxu, "Tribological Properties of CeF3 Nanoparticles as Additives in Lubricating Oils," WEAR, Wt.230, p.35-38, 1999
Online since: January 2012
Authors: Takayoshi Nakano, Takuya Ishimoto, Hideki Yoshikawa, Takashi Sakai, Kentaro Kawata
This finding indicates that the anisotropic orientation and/or migration of osteoblasts guided by the grooved-pore surface affected the establishment of the anisotropic microstructure of bone tissue.
Introduction Regarding bone implants, there is a need to enhance both the bone mass and bone quality of bone tissues newly formed around and inside implants for the mechanical improvement of bone-implant systems.
As a bone quality parameter, the preferred orientation of the biological apatite (BAp) c-axis was studied [1,2] because of its anisotropic nature regarding its mechanical properties [3].
This indicates that the anisotropic pore orientation and/or migration direction of osteoblasts guided by the pore surface affected the establishment of the anisotropic microstructure of bone tissue.
Finally, the microstructural findings obtained in this study can be useful to appropriately design biomaterials including orthopedic implants for reconstructing bone tissue with microstructures and properties similar to those of the intact bone [4].
Online since: June 2013
Authors: Young Shik Kim, Bong Jo Ryu, Kil Young Ahn
Further, mechanical properties of SM45C steel are measured experimentally from tensile and fatigue tests.
These results indicate that aforementioned two latch pin designs cannot be used to prevent the failure of the MCCB considering safety factors.
Mechanical Property Testing for SM45C In this section we discuss mechanical properties (especially, yield stress and fatigue life) of carbon-permeated and zinc-coated steel, SM45C used for the MCCB.
We summarize experimentally determined these mechanical properties in Table 1.
Mechanical properties of SM45C steels determined from tensile tests.
Online since: November 2023
Authors: L.H. Manjunath, Bincy Rose Vergis, Krishnakant Bhole, N.R. Thyagaraj, M. Ravi Kumar
Study by [9] Cai et.al focused on the fracturing features Al alloy and the mechanical properties of the alloy was observed.
A study by [10] Wen Cheng et.al saw the Al alloy in a composite with TiB2+TiC and the microstructure and mechanical properties was observed.
Other factors such as pores and un-melted powders may also play a role in lowering the density of the sample 3.
Ibrahim (2016) “The Influence of Selective Laser Melting Parameters on Density and Mechanical Properties of AlSi10Mg”.
Cairney, (2019) “Factors that affect the properties of additively manufactured AlSi10Mg: Porosity versus microstructure”, Additive Manufacturing, Volume 29,2019, 100805. https://doi.org/10.1016/j.addma.2019.100805
Online since: February 2013
Authors: Min Xiao, Hui Chen
Fig. 1 Combustion chamber mesh Influencing factors and laws of NOx emission (a) (b) (c) Fig. 2 The curves of cylinder pressure, temperature and NOx emission of different influencing factors There are many factors affect NOx generation in the combustion process of diesel engines.In this paper,the main (emphasis is placed on the influence of )five factors including intake temperature, load, fuel injection advance angle, engine speed and intake lag angle.
Fig. 2(c) shows the comparison of NOx emissions when different influence factors change.
The NOx emissions value calculated when five factors changes are shown in Table 3.
Whereas Fig. 3(b) shows that the maximum temperature in cylinder is 165 K, lower than that of diesel engine, due to DME’s physicochemical properties, the combustion temperatures on average in cylinder decrease.
Experimental Research on Influencing Factors of NOx Emission for Diesel Engine.
Online since: December 2014
Authors: Li Hua Sun, Liang Jun Yu, Cui Cui Huang
Mobile Communication Inter-symbol Crosstalk Cancellation based on Calman Digital Equalizer Filter Lihua Sun 1,a , Cuicui Huang 1, b, Liangjun Yu 1,c 1 Institute of Mechanical and Electronic Information, Wuhan University of Engineering Science ,430200, Wuhan, China a suniseeyou@qq.com, b cicy.h@foxmail.com, c yuliangjun1984@sohu.com Keywords: Calman, Digital equalizer, Filter, Mobile communication, Inter-symbol interference, MATLAB software.
In the digital mobile communication signal transmission system, the inter-symbol interference is one of the main factors affecting the performance.
Introduction The rapid development of science, technology and society makes the application of mobile communication system more and more widely, so the requirement of the communication system performance is more and more high, including the better quality of the output waveform, lower total harmonic distortion, high input power factor, fast dynamic response and high efficiency etc..
(2) According to the property of Fu Liye transform, n order derivative of should meet:
Online since: March 2012
Authors: Xin Chen, Jun Long Zhou
At the same time, the vortex of down-raised happened at the back location, which is more closer to the passenger’s ear, and affect the car interior noise.
Introduction Car noise level is one of the most important performance parameter which is the main factor that affects the interior comfort.
The noise of passenger cars is related to car shape, cruising speed, wind direction, atmospheric properties and other relevant factors.
Among all these factors, car shape, especially rearview mirror and the A-pillar shape are the most important infections to aerodynamic noise.
The model is widely used in the turbine mechanical calculations afterwards.
Online since: February 2015
Authors: E.M.A. Pereira, J.V. Silva, T.H.F. Andrade, S.R. de Farias Neto, A.G. Barbosa de Lima
The knowledge of the physical and mechanical properties of the agricultural products is of fundamental importance for the correct storage procedure and for design, manufacturing and operating different equipment used in post harvesting main processing operations of these products [2].
Development of models to predict drying process has assisted in understanding the factors affecting drying process such as temperature, relative humidity and velocity of drying air and optimizes them for reducing drying time and saving energy without performing a large number of experiments [8].
In this context, it is clear that the fissure of rice is influenced by several factors, such as, temperature, relative humidity, and velocity of the drying air, and drying time.
Arana, Physical and mechanical properties in rice processing, J.
Hall, Thermal properties of grain, Trans.
Online since: September 2013
Authors: Jan Willem G. van de Kuilen, Wolfgang Gard
Damage assessment and residual service life estimation of cracked timber beams Jan-Willem van de Kuilen1,2,a, Wolfgang Gard2,b 1Holzforschung München, TU München, Winzererstrasse 45, 80797, München, Germany 2Faculty of Civil Engineering and Geosciences, TU Delft, Stevinweg 1, 2628 CN Delft The Netherlands avandekuilen@wzw.tum.de, bw.f.gard@tudelft.nl Keywords: Service life, cracks, damage accumulation, degradation, residual strength models, safety factors.
The model can also be used to analyse safety factors that may need to be applied.
These models assume that cross sections do not change over time, for instance by assuming that over time the wood material properties are not influenced by decay and the cross section is constant.
A modification for changing material properties and cross sections can be found in [8,9].
The combination of a damage model with deterioration influence on the strength properties has resulted in a model which can easily be used to study the sensitivity of structures for different load sets and material parameters.
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