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Online since: September 2023
Authors: Roque Calvo, Miguel Berzal Rubio, Óscar Jiménez-Salvador
The macroscopic and microscopic factors influencing reflectivity can be considered in the reflectance analysis.
Microscopic factors, such as material composition and structure, with defects or impurities, also play a role.
Microscopic factors, such as material composition and structure, including defects or impurities, also affect transmittance.
Additionally, at the microscale, friction is affected by the mechanical and tribological properties of the surfaces, such as their elasticity, plasticity, and wear resistance.
Depending on the application, materials may need specific mechanical properties or surface chemistry
Online since: January 2011
Authors: Mohd Nasir Tamin, M.A. Khattak, M.A. Khan
Consequently, such degrading material properties should be quantified in view of establishing accurate component life prediction model.
This study examined effects of isothermal aging on DBTT behavior of the heat affected zone (HAZ) in welded Type A516 Gr 70 steels.
The J factor can be used to estimate the toughness degradation of steels [20].
Factors contributing to the brittle cleavage fracture are tri-axial state of stress, low temperature and high strain rate.
- No correlation is observed between DBTT and J factor for the different region of the welded joint
Online since: February 2014
Authors: Jian Bo Liu, Zheng Zhao, Ji Tian Song, Xiao Fei Xu, Wei Tian
The Experimental Study on the Enhanced Evaporating Property of the Pineapple Juice by Ultrasound Jitian Song1,2,a, Xiaofei Xu, Wei Tian, Jianbo Liu, Zheng Zhao2 1College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin, 300222, China 2College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin, 300222, China aemail: songjt@tust.edu.cn Keywords: Pineapple Juice; Evaporator; Ultrasound; Heat Transfer Coefficient Abstract.
The effects of various factors on the heat transfer coefficient were analyzed, including feed rate, evaporating temperature, temperature difference of heat transfer, and juice concentration.
This fouling would affect the quality of the juice.
The ultrasonic evaporator Results and Analysis This section is to discussion the effects of various factors on the performance of heat transfer in the evaporator.
The other two factors (temperature difference and concentration) remain the same as listed in Figure 2.
Online since: October 2010
Authors: Kai Yi Jiang, Y.L. Guo, W.L. Zeng, Z.S. Xin, X. Liu
This paper studied the effects of adding compatibilizer and alkaline treatment on the forming accuracy and mechanical property of WPC.
The factors affecting the interface adhesion strength are mainly: A whether the chemical bonds form in the interface.
Test tensile properties according to GB / T 1042-1922; test Charpy impact strength according to GB/T 1643-1993.
But their properties determine that the chemical bonds can't form between the interfaces.
Conclusions PP-g-MAH is good for the compatibilization of PP and wood flour, it can make the chemical bonds form to improve the mechanical properties.
Online since: May 2012
Authors: Jian Zhang
The mechanism that affect fire's erosion on concrete is different from usual conditions, and it deserves further study on both erosion mechanism, influence factors, chloride erosion prevention measures, and the Calcium Silicate Hydrate decomposition under high temperature, which can be of significant meaning in concrete structure damage evaluation and effective structure maintenance and reinforcement after fire.
Fire is one of the potential factors that damage the building.
Once caught on fire, building's material properties deteriorate badly, structural performances decrease fast, and tremendous economic losses would be caused.
And a lot of researches have been carried out on material mechanical properties, residual strength and various structural failure modes under fire high temperature.
And the inner bond force in concrete mainly originate from C-S-H gel, whose decomposition will decrease the bond force, and further arouse the decrease of mechanical properties of concrete.
Online since: May 2012
Authors: Bin Shi, Lei Gao, Yu Xian Shao, Chun Liu
The temperature change must affect the engineering properties of the soil and lead to a series of geological disasters[9-11].
With the decrease of the thickness of the bounding water film, the soil-water interaction and the structure of the soil also changes, leading to the variation of the physical and mechanical properties of soil[3].
The clay particle content, the hydrophilic mineral content and organic matter are the key factors that influence the Atterberg limitss of clayey soils [25].
Impact and key issues of urban heat island effect to soil engineering properties.
Thermal properties of soils as affected by density and water content.
Online since: February 2026
Authors: Davies Oladayo Folorunso, Isiaka Oluwole Oladele, Baraka Abiodun Makinde-Isola, Moses Azeez Olayiwola, Akeem Damilola Akinwekomi
The gut microbiota also plays an influential role in bone health, affecting the metabolism and healing through immune modulation and the secretion of signaling molecules that regulate osteoclast and osteoblast activity [24].
Also, agarose combined with HAp shows better mechanical properties and conducive environment for cell growth [44].
Mechanical properties of chitosan show inherent low strength that limit its usage for load-bearing applications.
The mechanical properties of these composites can significantly affect their effectiveness in clinical application, and factors such as the specific ratio of chitosan to HAp and the processing methods employed also influence its feasibility [33].
Additionally, incorporating growth factors (such as bone morphogenetic proteins and platelet-derived growth factor) also promotes osteogenesis [62].
Online since: July 2011
Authors: Mujibur M. Rahman, F. Tarlochan, S.S.M. Nor, A. T. A. Rahman, H. Y. Rahman
However, due to this movement, pores among the particles are generated that affects the mechanical properties of the green compacts.
The microstructure changes under this circumstance resulting in mechanical properties variation [15] such as strength, hardness and electrical conductivity.
Therefore, this study presents the investigation of forming temperature to the microstructure evolution and its relation to the mechanical properties of powder compact.
This study can be useful in formulating optimum compaction parameter to desired mechanical properties as well as predicting microstructure and mechanical behavior of the final product, later during sintering process.
Green compact produced is tested for its mechanical properties in order to evaluate the influence of the parameter applied.
Online since: March 2015
Authors: Cosmina Vigaru, Dan Ioan Stoia, Lucian Rusu
In conclusion, some qualitative aspects regarding the setting of the scaling factors were underlined.
Many factors influence geometry, dimensional accuracy and mechanical properties of the parts build up using SLS.
When it comes to evaluation of the parts, dimensional accuracy, shape accuracy and mechanical properties are the most important issues [6, 7, 8].
There are however many aspects that have to be studied in order to use this technology in custom implants fabrication: geometrical accuracy, mechanical properties, the possibility of cleaning and sterilizing the parts.
Cheung, Effects of energy density on morphology and properties of selective laser sintered polycarbonate, J.
Online since: December 2011
Authors: Shi Jie Wang, Zhe Wang
This friction variation is caused by the complicated factors that affect friction coefficient in the crude oil lubricating medium.
In addition, the effect of such factors as medium corrosion and swelling on rubber friction and wear should be considered in the experiment [2, 3].
Crude oil is also corrosive and makes the mechanical properties of the rubber’s surface decrease and more susceptible to plough, thus increasing the wear. 2.2.
Effect of Load on Friction Properties of NBR Figure 3 shows the curve of NBR/steel pair’s friction coefficient at constant temperature and constant speed.
Temperature on friction properties of NBR The effect of temperature on the elastic hydrodynamic lubrication friction is clearly seen[6].
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