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Online since: December 2010
Authors: Zhi Qiang Kang, Shu Hui Zhang, Qing Lu
Foam glass composite with good properties was prepared from iron ore tailings as the main raw material by two-steps method in this paper, the characteristics of which was determined by XRD and SEM technologies.
The crystal phase existing in the sample may improve the mechanical strength[5], but easily leads to generate more connection pores in the sample inside.
Fig.4 SEM micrographs of porous in samples The foaming temperature is the key factor to affect the sample quality.
Table 3 shows the effects of various foaming temperature on the sample properties.
Besides, the holding time also has effects on the sample properties even at the same foaming temperature.
Online since: July 2011
Authors: Guo Wei, Peng Fei Zhang, Xun Jin, Xing Wu Long
Bias of ring laser gyro (RLG) changes with temperature in the non-linear way, which is an important restraining factor for improving the accuracy of RLG.
Temperature characteristics and test of RLG’s bias Temperature mainly impacts RLG’s bias from the following aspects: in terms of heat source, the gyro fevers in working and needs several hours to reach equilibrium, in addition, the temperature field will change more complex when ambient temperature and other conditions change, so the change of both gyro’s own temperature and ambient temperature will affect the performance of the gyro; in terms of physical properties, refractive index of gas, thermal conductivity of materials, optical properties of optical devices will change; in terms of geometrical characteristic, the device’s expansion and contraction, bending can result in optical changes and the increasing loss of resonant system; finally, the change of temperature field causes gas flow’s change, which results in the imbalance of discharge current of two arms, and exacerbates the change of bias that brought by Langmuir effect.
These changes will all affect the output of RLG.
Measurement data at all temperature spots of a certain type mechanical dithered RLG in the experiment is shown as Table 1.
Online since: September 2019
Authors: A.G. Barbosa de Lima, Severino Rodrigues de Farias Neto, J.L. de Oliveira, R. Pereira Ramos, H. Luma Fernandes Magalhães, W.R. Gomes dos Santos
During transportation, some factors such as high pressure drop, heat transfer, different velocities, and flow regimes are critical, and they should be considered in the design development of these systems.
The thermo-physical properties of the fluids used in the simulation are presented in Table 1.
Table 1 - Properties of the fluids used in the simulation.
It is noticed changes in the oil velocity at the entrance region strongly affect the velocity profile of the oil/water mixture.
Masters dissertation in Mechanical Engineering, Federal University of São Paulo, São Carlos, Brazil, 143p. 2011.
Online since: October 2011
Authors: Ying Guang Fang, Bo Wu, Zong Xue Yan
According to the mechanical parameters in table 1, maximum tension strain of this surrounding rock was set at 0.5‰.
Table 1 Mechanical parameter of rock Rock grade Weight γ(kN/m3) shear modulus(GPa) Poisson ratioμ cohesive strength c/KPa internal friction angle / ° V 20 1.875 0.333 500 32 The scale of laxity area on surrounding rock is the key factor affecting surrounding rock load.
[12]GENG Luanfeng,Analysis of mechanical properties of full section excavation of single arch four-lane highway tunnel[J], Shanxi Architecture,2009.2
Online since: November 2024
Authors: Victor Ejiro Ajokperiniovo, Ejovi Okuma Ogagavwodia, Silas Oseme Okuma, Martins Obaseki
This software is widely recognized for its capability to optimize and explore the effects of multiple factors on a response variable through statistical models such as the Central Composite Design (CCD).
The anticorrosion efficacy of AGL extract is largely due to the properties of heterocyclic compounds found in the extract.
These results shows that factors such as temperature, time, and extract concentration exert a considerable influence on the corrosion rate.The second-order polynomial model obtained for corrosion rate is expressed in Eq. (5).
The statistical significance of the models was confirmed, and the interaction between responses and factors was demonstrated through three-dimensional plots.
Elechi, Development of regression models to predict and optimize the composition and the mechanical properties of aluminium bronze alloy, Advances in Materials and Processing Technologies, 8(sup3) (2022) 1227-1244
Online since: October 2006
Authors: Daniel N. Bentz, Max O. Bloomfield, Timothy S. Cale
Introduction Many materials properties (resistivity [1,2], yield strength [3-5], etc.) and materials reliabilities issues (electromigration [6,7], fatigue [8,9], etc.) are impacted by grain structure.
As such, there is considerable interest in modeling these phenomena and in understanding how grain structure affects them.
Some relevant materials properties are listed in Table 1.
When the copper film is treated as homogeneous and isotropic using the properties of bulk copper (see Table 1), it exhibits a uniform stress value throughout the copper of 178 MPa.
Wang, Single crystal elastic constants and calculated aggregate properties: a handbook, M.I.T.
Online since: July 2014
Authors: R. Saravanan, Manoj Kumar B
Saravanan 2,b 1 Research Scholar – Mechanical Engineering, Karpagam University, Coimbatore, Tamil Nadu State, India 2 Dean - Mechanical Engineering, Sri Krishna College of Technology, Coimbatore, Tamil Nadu State, India a manojkumar@scmsgroup.org b r.saravanan@skct.edu.in Keywords: Reclaimed rubber, Reverse logistics, Network design, used tires, Tire Recycling, Matlab, Material recovery Abstract- Managing the products at the end of its intended use and recovery of such used products from the market is gaining significant importance these days due to global environmental concerns, resource reduction, government regulations and economic factors.
Naturally it affects the quality of material recovered also.
Due to increasing environmental deterioration, green manufacturing, government regulations, corporate social responsibilities, resource reduction, and economic factors, many companies are now engaged in the material recovery business.
Work is on-going in CEN TC366 to validate CEN TS14243 into a European standard and to develop standards related to certain physical, composition characteristics of the materials produced from ELTs as well as to determine general properties of whole tires as required for further processing.
The recycling plant of manufacturing reclaimed rubber will setup its own sorting cum shredding unit across the state based on the geographical and availability factors of used tires and they will collect the used tires from the tire shop directly without collection agents.
Online since: June 2025
Authors: Nahla Djebbari, Saida Mellal, Hichem Farh, Mourad Khechba, Yazid Laib Dit Laksir
This generally affects the regularity of the crystalline films.
In order to improve the electrical properties of TO thin film, it is an n-type semiconductor.
These thin films exhibit excellent electrical properties while providing the mechanical stability necessary for flexible electronic applications [43].
Additionally, lattice distortions resulting from mechanical stress or chemical interactions with nickel and zinc lead to the creation of defects such as voids and distorted atomic positions, which further enhance the electrical and optical properties of the material.
Furthermore, the efficiency of these processes is significantly affected by factors such as material crystallinity, dopant presence, and the structural orientation of the film.
Online since: June 2022
Authors: Radu Cojocaru, Lia-Nicoleta Botila
Mahmoudiniya, a.o., Microstructure and mechanical properties of friction stir welded ferrite-martensite DP700steel, Mater.
McNelley, a.o., Microstructures and Properties of Copper Alloys after Friction Stir Welding/Processing.
Shirazi, Microstructurals and mechanical properties of FSWed cooper plates under usage of shielding gas for different welding parameters, Mater.
Sarrafi, a.o., Evaluation of Microstructure and Mechanical Properties of Aluminium to Copper Friction Stir Butt Welds.
Ebert, Magnesium: properties-applications-potential, Mater.
Online since: January 2013
Authors: Hanida Abdullah, Asnizah Sahekhaini, Aminudin bin Abu, Pauziah Binti Muhamad, Lee Kee Quen
The noise of exhaust muffler is one of the key factors of the noise of the whole car.
The input side is at x = 0 and the output side is at x = L.Cascading property is the method that makes the four-pole formulation so useful.
Thus, clearly we found that the inlet temperature does not affect the transmission loss of muffler.
Sas:Developementof an Active Exhaust Silencer for Internal Combustion Engines, K.U Leuven, Faculty Applied Science, Department Mechanical Engineering, Celstijnenlaan, Belgium, (2004)
Bento Coelho:Journal Brazil Society Mechanical Science& Engineering,Vol.27, No.2 (2005), p. 132-140
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