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Online since: April 2014
Authors: Ester Helanová, Jan Vanerek, Dagmar Palovcikova
The action of wood-rot fungi on wood reduces the durability of wood, which is reflected in particular by reducing physical - mechanical properties.
The brown-rot fungi affect several strength properties of wood before significant weight loss is detected [10].
The degradation of polysacharides is affected by generally several factors, especially by pH value and temperature. 1.2.
Factors affecting the development of mould and brown rot decay in wooden material and wooden structures - effect of humidity, temperature and exposure time.
Factors affecting the development of biodeterioration in wooden material and wooden constructions.
Online since: January 2014
Authors: Zhe Ming
This paper presents a conclusion drawn by adopting laser processing technology to form striated non-smooth surface of nodular cast iron and study the factors that affect the wear resistance at the normal temperature by means of single factor testing and orthogonal testing.
The parameters of laser processing are as belows: electric current 30A, velocity 0.5mm/s, frequency 16Hz, pulse width 20ms. 1.2 Experimental method The factors affecting wear mainly involve material surface and external environment.
The material surface factors include the hardness of test-piece, the shape and density of the geometric unit of non-smooth surface.
The single factor test is conducted on the factors affecting wear to find the major factors for orthogonal experiment and achieve the optimal processing conditions.
[3] Zhang Song, Wang Maocai, Wu Weitao, The Organization and Tribology Properties of Laser cladding T iC/ Ti[ J ].
Online since: May 2020
Authors: G.A. Talipova, Ruslan R. Safin, Nour R. Galyavetdinov
Study of the Destructive Properties of Biodegradable Wood-Filled Composite Material N.R.
Thus, samples of composites were obtained for further studies of their properties.
Another factor affecting the ability to degrade PLA in composites is the varying degree of dispersion of the filler layers in the polymer matrix, which actually depends on the quality of the filler itself.
Butylina, Comparison of water absorption and mechanical properties of wood–plastic composites made from polypropylene and polylactic acid, Wood Material Science & Engineering, 5:3-4 (2010) 220-228
Voronin, Analysis of physico-mechanical properties of composites based on polylactide and thermally modifie wood fibers, Materials Science Forum, pp. 202-206, 2016
Online since: September 2018
Authors: Faramarz Djavanroodi, Fahd Almufadi
Grain size is a key factor affecting physical and mechanical properties of polycrystals materials.
Introduction Tailoring material properties to specific application requirements is one of the major challenges in materials engineering.
Grain size is a key factor affecting physical and mechanical properties of polycrystals materials.
Using these tensile properties, true stress-plastic strain data was tabulated in ABAQUS for plastic strains of up to 10% where isotropic hardening was assumed.
Djavanroodi, Arab J Sci Eng (2015) 40 (9) :2785–2794 [19] eFunda, “Typical Properties of Copper Alloys,” 2015.
Online since: September 2018
Authors: Sergei Alexandrov, Bharat D. Deorukhkar, Devanand S. Doifode, Prashant P. Date
A constitutive equation for viscosity is formulated which considers all factors affecting viscosity with the maximum percentage error of about 4% between experimental value and value predicted by the formulated equation is obtained.
Hence it is primarily important to study and formulate a common constitutive equation characterizing the effect of various parameters affecting the viscosity of the feedstock.
On considering all the facts mentioned in the section on rheological properties, a single equation which combines all parameters affecting viscosity of composite, can be established.
Hsu, “Effect of backbone polymer on properties of 316L stainless steel MIM compact,” J.
Muhamad, “Rheological Properties of Ss316L Mim Feedstock Prepared With Different Particle Sizes and Powder Loadings,” Inst.
Online since: April 2012
Authors: Li Jun Qiu, Su Ying Xu
Fit Clearance of Impeller to Turbocharger Performance Influence with Mechanics Properties Suying Xu 1, a Lijun Qiu 2,b 1 Liaodong University Mechanical and Electrical College, Dandong 118003, liaoning,China aXusuying0002@163.com, bqlj7710@163.com, Keywords: Impeller shaft structure, impeller. gap, sports performance Abstract: The fit clearance between the impeller and the impeller shell directly affect the characteristics of the turbocharger.
Raise power of engine, mechanical efficiency, emission of engine exhaust gas concentration reduced.
The impeller shaft component can be seen the impeller is the main factor affecting shaft dynamic balance.
The impeller and the shell space is determined the main factors affecting the efficiency of turbine supercharger.
Reference [1]Lijun Qiu, Restruction of Turbosupercharger's design exploration,Advanced Materials Research Vols(2010)102-104p60-63 [2] Northwestern Polytechnical University, mechanical principles and teaching and research compiled mechanical parts, Mechanical design, People's Education Press ,1979.9,491-492 (in chinese) [3] Urbocharger Co., Ltd. of Liaoning.
Online since: December 2011
Authors: Xian Jia, Qing Wang, Zhi Quan Huang, Qing Xue Huang
The cut quality problems are caused by many factors, but the most important is the setup way of blade clearance.
The author combined theory analysis with practice, and find out the ration relationship between the shear blade clearance and the relevant factors like shear standards and shear property. then we make a best Mathematical model of the shear blade and also make a imitate testing of finite element.
The Influence Factors of Shear Blade Clearance Analysis and Its Best Mathematical Model to Establish[3].
This model not only applies to blade gap adjustment during cutting carbon steel, but also for high-strength steel and alloy steel shear gap adjustment, at the same time, taking into account the shearing temperature, shear material properties, the cumulative cut area (for the first time model proposed and was introduced, compared with the shear volume of tonnage or accumulation cutting quantity, it is more precisely) and other factors that affect the cutting quality.
And under the disk shear deformation characteristics of metal in the process, full use of the elements affecting the quality of cut, set up a simple Shear blade clearance adjustment model.
Online since: September 2014
Authors: Surachai Dechkunakorn, Niwat Anuwongnukroh, Toemsak Srikhirin, Tassanaporn Saen-Isara, Siriporn Tanodekaew
This could, in turn, affect the properties of the removable appliances as the physical and mechanical properties of auto-polymerizing orthodontic acrylic resin are greatly dependent on their composition [1].
Flexural Properties Test.
The molecular weight distribution is one of the important factors that can be used to determine the properties of acrylic resins [13].
Therefore, an optimized initiator system is one of the important factors for acceptable optical properties of specimen.
Incompatibility of initiator and accelerator system in either chemical composition or ratio could affect the optical properties of the product.
Online since: January 2013
Authors: Ying Li, Ji Ke Liu, Wen Juan Gu
However, the stability of the impregnant emulsion is affected by many factors.
Research on the factors that affect it stability is valuable for us to prolong the storage term and improve the performance of the product.
Through comparative analysis, it was found that there were three factors which affect its stability, which were studied separately in this paper.
Effect of pH on the stability of the paste like impregnant The acid & base property is an important factor that affect the stability of silicone water repellent paste.
The factors that affect the stability were studied.
Online since: June 2005
Authors: Tohru Sekino, Tadachika Nakayama, Takafumi Kusunose, Koichi Niihara, Norihito Tanaka, Yamato Hayashi
Mechanical properties of Y-TZP / TiNi composites were much higher than those of Y-TZP monolith.
In Ceramics/metal composites such as tetragonal ZrO2/Ni[2, 3], Al2O3/Ni[4, 5] , there are excellent mechanical properties and ferromagnetic properties.
Cobalt is often used as additive for TiNi phase by substituting for some amount of Ni atom in order to control its properties.
Next, mechanical and electrical properties of these composites were investigated. 2.
The first factor is critical grain size of t-ZrO2, and the second factor is the strength of TiNi.
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