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Online since: October 2011
Authors: Julian R. Jones, Toshihiro Kasuga, Akiko Obata, Hiroki Ozasa
The process of electrospinning is affected by both system parameters and process parameters.
System parameters include polymer molecular weight and polymer solution properties such as viscosity and conductivity.
It is necessary to choose the appropriate materials for optimizing the mechanical and biomimetic properties of a fibre mesh, since the orientation and diameter of the fibres in electrospun scaffolds can influence cellular compatibility.
The content of SiV in SiPVH sample was regarded to be one of the important factors for possessing elasticity for both of 3D and 2D structured fibrous samples.
Kasuga, Electrospinning fibermat poly(L-lactic acid) mechanical strength tensile test bone-likeapatite formation, J.
Online since: December 2014
Authors: Zong Xia Jiao, Jin Jun Wu, You Sheng Yang, Jing Yuan Li, Ge Gang Yu
The viscosity property is a good example.
This research focus on the numerical studies of the two important factors of rotary control valve in water hydraulics: one is the flow characteristics, which directly affects the design of the valve, such as the size and shape, the other is the flow induced torque, which greatly affects the performance of the valve and determines the selection of prime mover.
Among them, the flow characteristic and the flow torque are the two important hydrodynamic factors of rotary spool valve.
Water hydraulic polymer components under irradiation mechanical properties [J].
New materials and component design-key factors for water hydraulic systems [C].
Online since: November 2011
Authors: Jian Jun Zhou, Guo Bin Zhao, Jian Feng Bian
This definition describes the conditions and the factors influencing rock burst.
Scattered peeling at any moment Constructing is affected.
The geology conditions and rock mass properties have some common characteristics in the area of rock burst from K10+800 to K11+023 and from K6+650 to K 6+670.
Rock burst is a complicated geology phenomenon which is affected by many factors, for example underground water, structure and overburden depth and so on.
Institute of geological mechanical research of Chinese Acadamy of geological sciences.2007, Beijing, China.
Online since: January 2014
Authors: He Fei Ji, Jiang Rong Yang, Gui Chao Hu, Chun Li Jiang
The alloys were always quenched to form metastable, solid solutions to achieve desired properties and performances.
The impacting factors related with the changed microstructure caused by aging treatment were also investigated.
After a set of wet mechanical polishing treatments in the open laboratory, the samples were ultrasonically cleaned in acetone and ethanol respectively to remove the oxidized surface and other impurities.
From that we can conclude that the tree-like microstructure had a relatively weaker corrosion resistance comparing with the bulk material, and for this H atom was the principal factor as it acted on the tree-like phase firstly, making it soft and meanwhile weakening its corrosion resistance.
The preferred growing orientations of the hydride in each area circled by different colors are almost identical, and the former description proves that the microstructure of the bulk material is the main factor affecting the hydrides’ preferred growth.
Online since: November 2011
Authors: Ji Nung An, Dong Hwan Shin
Moreover, the preload significantly affects the dynamics of the rotational system.
Fig. 2 shows the CAE model after preprocessing, such as for links, knee joint torsion springs, material properties, revolute joints, contacts, and the hip joint angular displacement profile, which has an angular velocity of 120 deg/s as the condition of motion.
Through the full factorial design of experiments (DOE) with 2 factors and 5 levels, we generate 25 test cases as listed in Table A1.
Through the full factorial design of experiments (DOE) with 2 factors and 5 levels, we generate 25 test cases as listed in Table A2.
Koditschek, in: ASME International Mechanical Engineering Congress and Exposition (2007) [6] J.
Online since: June 2009
Authors: Suryendra D. Sherman, Arjan Quist, Paul Hansma
Understanding of what affects stickiness is critical.
Using atomic force and light microscopy, we examined adhesive properties of wood, tape and plastic.
The same cantilever was used to compare mechanical properties of all materials.
Lal. (2004) Elasticity and adhesion force mapping reveals real-time clustering of growth factor receptors and associated changes in local cellular rheological properties.
J. (2008) Orthopedic nano diamond coatings: Control of surface properties and their impact on osteoblast adhesion and proliferation.
Online since: April 2016
Authors: Marcin Nabrdalik, Michał Sobociński
New medical biomaterials are permanently searched for as far as their mechanical, tribological features are concerned; at the same time – they must be bio-compatible with human immunological system.
The scheme of that friction node The tests on the simulator T – 05 were conducted at the following parameters: - Friction pair load (the load affecting the sample) P = 600 N, - Friction surface F = 1cm2, - Relative velocity V = 0.1m/s, - Distance of friction L = 10 000m
Metal sleds’ surface modifications in knee joint endoprostheses Fig. 4 presents an example of total knee joint endoprosthesis of Motta – Calle type, with property profiled movement elements (sled – polyethylene insert) where the area contact occurs.
Sleds with TiN coated The tests proved that to very important factors influencing the wear belong load value and sled radius.
Dobrzański, Structure and properties processing of biomedical and engineering materials' surfaces, Institute of materials of Technical University of Silesia, Gliwice 2009 (in Polish)
Online since: July 2013
Authors: Chen Jing Lu, Shu Xia Ren, Jian Lei Wang, Gang Yu
Intorduction: Fe-Al intermetallic compounds(Fe3Al,FeAl) have special structures of long range order, this make them have many good physics, chemistry and mechanical properties performances such as unique nature of electrical, thermal, magnetic, light, and sound,excellent resistance to corrosion and high-temperature structural properties, specific strength and yield behavior of anomalous, but the most attractive feature is the low prices of raw materials.
According to materials design principles[2], adding strengthening phase (particle or fibers) to the matrix can improve the toughness, strength, wear resistance, and creep resistance properties of composite material.
So, the sintering temperature, affecting the generation process of the fiber by many methods, is one of the important factors determining the fibers’ characteristics.As a special crystal growth process, the fibers should also experience the nucleation and growth processes.
Under certain circumstances in the system, the equilibrium temperature directly affects the size of the diameter of the fiber, and the elevated temperatures decrease of the degree supersaturating so that the fiber diameter increase, And vice versa.
Online since: January 2013
Authors: Tian Bin Li, Qing Le Zeng, Shi Han Shen, Yu Yu Zhang
Then the mix solution was poured into a 3-neck flask with a mechanical stirrer and a condenser, which was placed in a thermostat water bath.
Evaluation of influential factors.
So, kaolin and crosslinker affects water absorbency of material more than neutralization does.
But these are just assumptions based on some researches, and the real mechanism needs further study of its components, structure and other factors.
[16] Polymer physics research of University of Science and Technology of China: The structure and the properties of the polymer (Science Press, Beijing 1981) [17] Deyu Gao, Robert B Heimann and Berthold Tomas.
Online since: December 2009
Authors: Wojciech Z. Misiolek, William R. Van Geertruyden
Combined numerical simulation and microstructure characterization for prediction of physical properties in extruded aluminum alloys W.
This phenomenon is present in many structural aluminum alloys extrudates and its presence should be eliminated or at least significantly reduced because of the mechanical properties and aesthetic points of view.
Both mechanical properties and surface quality of an extrudate can be affected by PCG formation.
In general, the PCG structure can be controlled by several factors: monitoring the exit temperature and extrusion speed, increasing or decreasing recrystallization inhibiting elements, and maximizing the extrusion ratio to obtain a critical strain.[11] Previous investigations have attempted to understand and predict PCG formation.[12-18] Many times, PCG formation is attributed to the strain gradient inherent in the extrusion process.
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