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Online since: August 2013
Authors: Jian Zhong Pei, Yan Wei Li, Jiu Peng Zhang
Introduction The properties of asphalt mastic, a composite material consisting of asphalt binder and filler, influences the overall mechanical properties of asphalt mixtures [1, 2].
The huge difference is the key factor which affecting the stability of asphalt mastic.
Stronger the interaction is, better the interfacial properties and the performances of asphalt mixture is [3].
Zhan et al [5] used the dynamic mechanical analysis (DMA) to study the microstructure of asphalt mastic, according to the temperature dependence of Han curve, frequency dependence of dynamic viscoelastic properties, such as storage modulus, loss modulus and phase angle.
In this paper, dynamic shear rheometer (DSR) was used to measure viscoelastic properties of asphalt mastic mixed with different fillers, and the mechanical volume filling effects are discussed.
Online since: July 2017
Authors: Ion Bogdan Codorean, Dragos Popescu, Stefania Tanase, Eduard Cernat, Florin Diaconu
Even after years of research that have uncovered the biological and mechanical properties of the specialized connective tissue that form ligaments and tendons, there are no current treatments that can achieve the structural, functional or biochemical properties of the native ones.
The optimal seeding density is dependent on the cell source and the physical and chemical properties of the bio scaffold, as these properties affect nutrient transport and rates of consumption, as well as the chemical and mechanical stimuli provided to the attached cells.
Collagen type I is the main component of the tendon, but it has poor mechanical properties and cannot be used as a load- bearing material.
Another natural polymer used is silk fibroin, it presents good biocompatibility and has comparable mechanical properties as native tendons and ligaments.
Experimental studies of these material showed they have unsuitable mechanical properties.
Online since: March 2024
Authors: Ratchaporn Srichan, Supaporn Mala, Sroisiri Thaweboon, Boonyanit Thaweboon
Various agents were added to artificial saliva to improve its properties.
They supply the main functions of removing damaged cells, and pathogens, and secrete growth factors and proteins that attract the arrival of relevant cells, such as fibroblasts and endothelial cells, to the injured area.
Hyposalivation factors include the presence of glandular or systemic diseases, aging, and the use of some drugs such as antihypertensives, diuretics, antihistamines, anticholinergics, and anxiolytics.
In addition, the attributes of cells implicated in tissue regeneration in the oral mucosa are unique and have some properties of fetal cells [2].
Saliva is a complex fluid that affects oral health by means of specific and non-specific physical and chemical properties.
Online since: August 2023
Authors: Johannes Winklhofer, Jie Hua Li, Stefan Griesebner, Ivo Spacil, Fabian Hofstätter
In contrast, although thixocasting is costlier than rheocasting, thixocasting can produce the components with excellent functional and mechanical properties.
The Fe-containing phase in thixocasting sample is smaller than that of rheocasting sample, which can affect the mechanical properties, as shown in Fig. 5.
Fig. 5 shows mechanical properties of thixocasting of Al-7Si-0.6Mg alloy after T5.
Fig. 5 Mechanical properties of thixocasting of Al-7Si-0.6Mg alloy after T5.
Fig. 6 Mechanical properties of rheocasting of Al-7Si-0.6 Mg alloy after T5.
Online since: December 2013
Authors: Qun Jie Xu, Jie Han, Guo Li Zhang, Mei Ming Li
It is found that copper shows an excellent super-hydrophobic property when etched in lauric acid.
It still exhibit super-hydrophobic properties even exposed in moist air for 90 days.
Major issues are as follows: (1) Mechanical stability: The micro-nano hierarchical structure is prone to damage during their usage or machining, caused by corrosion, fatigue and other impact factors.
It is a challenging work to fabricate a super-hydrophobic surface with a high mechanical property
So the factors affecting regularity of the film-forming process remain under-investigated.
Online since: March 2009
Authors: Raúl Bermejo, Luca Ceseracciu, Luis Llanes, Marc Anglada
Layered ceramics are foreseen as possible substitutes for monolithic ceramics due to their attractive mechanical properties in terms of strength reliability and toughness.
Physical properties have been determined elsewhere [51, 52].
One of the main applications for these materials is that related to surface properties; for this reason the response to contact loading is especially important to characterise their mechanical properties and to assist in the design of advanced ceramic composites.
Mechanical Properties, Failure Behaviour, Materials Selection.
Fabrication, microstructure and properties of ZrO2 -toughened Al2O3 substrates, advances in ceramics.
Online since: October 2011
Authors: Wen Yong Liu, Xiao Liang Xu, Yong Ye An
By studying mechanical properties of sprayed concrete mixing different proportions of iron tailings, the optimal ratio of iron tailings to replace nature sand have been gotten.
By studying mechanical properties of sprayed concrete mixing different proportions of iron tailings, we got the optimal ratio of iron tailings.
But these factors could not affect the comprehensive performance of sprayed concrete with rate of iron tailings increasing.
The strength of sprayed concrete with iron tailings proportion from 20% to 80% could meet the required mechanical properties and engineering needs.
l The strength of sprayed concrete with iron tailings proportion from 20% to 80% could meet the required mechanical properties and engineering needs.
Online since: May 2016
Authors: Wang Hui, Pei Quan Guo, Yang Qiao, Jin Tao Niu
When the alloy temperature range of 650-750℃, it also has excellent mechanical properties.
Table 2 and table 3 respectively FGH97 chemical compositions and physical and mechanical properties.
High speed steel tools have good comprehensive mechanical properties, the material hardness is above 63HRC (some even up to 70HRC) by heating treatment.
As actual application, drilling performance just a considered of factor, the more important of factors are cost and economic.
When studying on drilling of Ni-based powder metallurgy superalloys, we may increase αf and 2Φ as empirical formula of drilling factors.
Online since: November 2012
Authors: Osamu Suzuki, Naohisa Miyatake, Masami Hosaka, Hideki Imaizumi, Eiji Itoi, Kentaro Suzuki, Takahisa Anada, Yoshitomo Honda, Koshi N. Kishimoto
Furthermore, the addition of Hya did not inhibit osteoconductive property of OCP.
The matrix materials may be used not only from the point of view of biological aspects but also holding the physicochemical property of OCP because some of polymer materials should affect the chemical aspect of OCP crystals.
Summary Hya has an effect not only to convert the handling property of OCP from the poor moldability to the injectable characteristics but also raise bone regenerative property of OCP.
[11] E S Desai, M Y Tang, A E Ross, R A Gemeinhart, Critical factors affecting cell encapsulation in superporous hydrogels.
[16] A Matsui, T Anada, T Masuda, Y Honda, N Miyatake, T Kawai, S Kamakura, S Echigo, O Suzuki, Mechanical stress-related calvaria bone augmentation by onlayed octacalcium phosphate-collagen implant, Tissue Eng Part A 16 (2010) 139-151.
Online since: December 2022
Authors: Abderrahmane Younes, Amirouche Bouamer, Nasser Benrekaa
"Mechanical properties and porosity of polylactide for biomedical applications."
Improvements in the crystallinity and mechanical properties of PLA by nucleation and annealing.
E., & Kontopoulou, M., Improvements in the crystallinity and mechanical properties of PLA by nucleation and annealing.
"Thermal and mechanical properties of stereocomplex polylactide enhanced by nanosilica."
"Effect of nano SiO2 on some mechanical properties of biodegradable polylactic acid."
Showing 11421 to 11430 of 25935 items