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Online since: July 2007
Authors: Chong Su Cho, Hyun Chul Lee, In Yong Kim, Mi Kyong Yoo, Seog Jin Seo, Bom Chol Kim, Se Kwon Kim
Chitosan (CS)/poloxamer semi-interpenetrating polymer networks (SIPNs) was prepared by crosslinking of poloxamer macromer in the presence of CS in order to improve its mechanical property required in skin tissue engineering application.
Their biodegradability and biocompatibility, together with their specific interactions with components of the ECM and growth factors, have led to their growing use in tissue engineering, such as in the repair of skin, liver, bone, and cartilage.
Blending or cross-linking of CS scaffold with other polymers is widely investigated for improving its mechanical or biological properties over a broad range.
The mechanical strength against compression and the water content were significantly improved by the SIPN system [4].
morphology can affect cell viability, proliferation and function, which is important for tissue engineering in the artificial skin system.
Online since: October 2025
Authors: Dumitru Mnerie, Gabriela Victoria Mnerie, Branko Savić, Petra Tanović
Testing of polymer packaging materials and packaging can be divided into [5]: - Testing of physical-mechanical properties, - Testing of barrier properties, and - Testing of health safety.
Its mechanical properties largely depend on the degree of polymerization.
The basic testing of mechanical properties is carried out by deforming the sample while monitoring the stress on the sample.
The most common requirements are for mechanical and aesthetic properties to replace more expensive plastic materials.
According to [13] the material has better mechanical properties if it has higher values of tensile strength in the transverse direction.
Online since: December 2013
Authors: Si Liu, Yuan Gao, Qing Wang, Tian Ze Chen
Classical physics blending modes and effect analysis Main factors that affect LDPE/CaCO3 blending effect are generally as follows: superposition of vibration frequency and amplitude when blending, [3] mixing ratio of LDPE and CaCO3, kinds of additives test etc.
He studied mechanical properties by scanning electron microscope to observe dispersion of nanometer ZnO particles in LDPE matrix. [9] Results prove that additives of modified nanometer ZnO can improve mechanical properties of LDPE.
Sample performances were tested in three aspects: Tensile mechanical properties, impact mechanical properties and bending tensile impact.
Compared to other related research, H.Y Wang studied mechanical properties and rheological properties during the process CaCO3 filling LDPE with titanate coupling agent activated.[17]His group found that impact strength and breaking elongation are greatly improved after activation of CaCO3, leading to better performance of mechanical properties and processablity significantly.
Enhancing Mechanical Properties and Magnetic Performance of Plastics Magnet via Mixing under Vibration Force Field.
Online since: August 2018
Authors: James K. Carson, Kaggwa Abdul, Martin Atkin, Michael Walmsley
Physical Properties and Rheological Characteristics of Activated Carbon Nanofluids with Varying Filler Fractions and Surfactants Kaggwa Abdul*, James K.
This paper investigated thermophysical properties of activated carbon nanofluids using hexane, water and ethylene glycol (EG) as base fluids.
Conclusion This paper investigated physical properties of activated carbon nanofluids and the major conclusions are as follows; 1.
Rajan, Metal oxide nanofluids: Review of formulation, thermo-physical properties, mechanisms, and heat transfer performance, Renew.
Najafi, Factors affecting the performance of hybrid nanofluids: A comprehensive review, Int.
Online since: October 2013
Authors: Feng He, Sen Lin Li, Da Chun Yang
The practice has shown that the design is feasible, there is not cold shut, misrun, scab, and oxidizing for the castings, and the requirements of mechanical properties can be met.
The practice has shown that the design is feasible, there is not cold shut, misrun, scab, and oxidizing for the castings, and the requirements of mechanical properties can be met.
Controlling the pouring temperature According to fast pouring mechanism, pouring temperature is one of the important factors which achieve the dynamic directional solidification of casting.
Conclusion It is feasible that the foundry technology was designed by the principle of directional solidification and fast pouring mechanism for the controlling board stainless steel castings with thin wall, uniform thickness, and no special mechanical properties.
Adopting this foundry technology, there was no shrinkage and dispersed shrinkage in A, its surface quality was greatly improved, and the requirements of mechanical properties could be met.
Online since: August 2023
Authors: Vladyslava Vladymyrenko, Igor Shulga
Coke then acquires semiconductor properties.
The pre-exponential factor characterizes the properties of the original coal, including its caking ability, the content of mineral impurities, and their ability to form free current carriers (electrons or holes).
The following tasks were required to achieve this goal: · Critically analyze modern methods that characterize the metallurgical properties of coke and factors that affect the value of SER
The implementation of the experiment allows for separately determining the influence of different factors (stickiness of the initial coal, quantity and composition of its mineral part, final coking temperature) on the specific electrical resistance of the obtained coke.
Specific electrical resistance is an important characteristic of coke, which is closely related to its readiness and the overall set of metallurgical properties. 2.
Online since: July 2011
Authors: Piotr Skubisz, Piotr Micek, Jan Sińczak, Marek Tumidajewicz
Once the process parameters are properly determined, consistent mechanical properties are obtained.
Qualitative illustration of the influence of abovementioned factors associated with thermal factors on the cooling curves profile in depicted in Fig. 1.
Hence, meeting the requirements as for the mechanical properties calls for numerous industrial “iterations”.
Hornak: Relationship of microstructure and mechanical properties of TRIP-aided steel processed by press forging.
Eghbali: The influence of hot forging conditions on microstructure and mechanical properties of two microalloyed steels.
Online since: October 2011
Authors: San Qing Su, She Liang Wang, Jun Feng Hou, Kai Feng Cheng
In order to find out the root which affects the shaft tower vibration, tower harmful vibration test and diagnosis had been done, and then the theoretical analysis of shaft tower vibration characteristics, including hazardous source test, self vibration properties test, vibration response test in [7] .
Self vibration properties test and theoretical analysis In order to meet the demands of aseismic engineering design, the testing and study of the dynamic charaeteristies of the shaft tower had been done in past years.
Contrast with the measured results, it was analysized about the interaction effect and some main factors on the system dynamic characteristics influence degree.
In [21], structure is regarded as equivalent plane problem based on mechanical properties of shaft-tower structures.
The member-floor mechanical model is established.
Online since: November 2011
Authors: Feng Xiang You, Fei Zhang, Buo Lei Zuo
Spline-based Finite Element Analysis in Composite Laminates Mechanical Properties Fengxiang You 1, 2, Fei Zhang 2, BuLei Zuo 2 (1, Automation Control Department , Huazhong University of Science and Technology, Wuhan, Hubei Province, China, 470073 2, Nanjing Institute of Railway Technoiogy , Jiangsu Province,China, 215137 ) About The Author:Fengxiang You(1960-),Male, Tianjin, professor, ph.
The geometric parameters of the composite laminate in the engineering structure tend to have random properties.
Composite material has been widely applied in modern industry because of its features as being stronger rigidity, tougher stiffness as well as its physical and mechanical properties which can be designed to its advantage.That's why mechanical characteristic of laminated plates in compound materials has even more aroused people's interest.
Example 2, the geometric properties of laminated plates and loaded situation with Example 1.
Layers of the same material properties: Material density, antisymmetric angle:().
Online since: September 2011
Authors: Hai Bo Wu, Lian Zhou Jiang, Hai Tao Wu, Yang Li
Crew pressing and extruding-expelling extraction processes denature protein to render functional properties poor for food and meal use.
Furthermore, the residual hexane in the commercial oil is noxious, which will affect consumer health.
Screw pressing and extruding-expelling extraction processes of oil from soybean leave 7-8% residual oil contents in the soybean meal [2] and denature proteins due to high heat expo- sure rendering the meal deficient in functional properties for food use or further fractionation [3,4].
Table1.Factor level coding table Code Factor EFSF Concentration(%) x1 Initial pH x2 Inoculation Volume (%) x3 - 1.682 4.477 7.159 4.318 - 1 5.5 7.5 5 0 7 8 6 1 8.5 8.5 7 1.682 9.523 8.841 7.682 Table2.Desing and results of response surface methodology Trial No.
AOCS Press. champaign. (2000) pp. 108-135 [2] Nelson LL, Wijeratne WB, Yeh SW, Wei TM, Wei LS, “Dry extrusion as an aid to mechanical expelling of oil from soybeans,” Am Oil Chem Soc, Vol.64 (1987): 1341–1347 [3] Heywood AA, Myers DJ, Bailey TB, Johnson LA, “Functional properties of extruded-expelled soybean flours from valueenhanced soybeans,” Am Oil Chem Soc , Vol.79 (2002):699–702 [4] Heywood AA, Myers DJ, Bailey TB, Johnson LA, “Functional properties of low-fat soy flour produced by and extrusionexpelling system,” Am Oil Chem Soc, Vol.79 (2002): 1249– 1253 [5] LiYang, Lianzhou Jiang, Zhaoguo Zhang, Haibo Wu, “Effect of Cellulose Degradation on Soybean Oil Extraction Yield through Extrusion and Expansion Processing,” Transaction of the Chinese society for agricultural machinery Vol. 02 (31) (2010): 166-172 [6] LiuYang, Lianzhou Jiang, YangLi, Haibo Wu, “Ultrasonic preirradiation effect upon aqueous enzymatic oil extraction from soybean,” China oil Vol. 34 (12) (2009):10-14
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