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Online since: June 2009
Authors: Fatimah Lina Ayatollahi, Burhanuddin Yeop Majlis
This paper presents material properties of a micromachined mesoscopic acoustic speaker for hearing aid applications.
Thickness is one of the important design parameters affecting the device deflection behavior.
Coil width is one of the important design parameters affecting the device deflection behavior.
Material properties for micro-machined mesoscopic acoustic speaker have been performed.
The chosen materials represent balances between competing factors, for example, membrane thickness and fabrication processes limit.
Online since: May 2011
Authors: Xi Song, Shi Rong Li, Yong Gang Zhao
It is assumed that the material properties of arches vary with the thickness direction as a power function.
Because of the superb properties of high strength and high temperature resistance, FGMs (functionally graded materials) are ideal materials for preparing structural elements used in aerospace, nuclear reactors and other high temperature environments.
The main factors affecting elastic buckling load may be load type, the geometrical shape or size, and boundary conditions of the arch.
Considering a circular arch of ceramic-metal FGM with rectangular cross-section, subjected to uniformly distributed radial follow load as shown in Fig. 3, the material and geometric properties of the arch are given as follows [16]: ,, =27.88 , =380,
The factors that affect buckling of FGM arches are discussed.
Online since: April 2012
Authors: Anthony J. DeArdo, C. Isaac Garcia, Chao Fang, Shi Hoon Choi
Hence other structural factors such as precipitation and/or solute drag might become more important in controlling the kinetic behavior of the steel during annealing. 1.
It is well known that, traditionally, the level of stored energy could be measured directly by calorimetry or determined indirectly from the change in some physical or mechanical property of the material such as hardness and electrical resistance.
These factors will be explored in future work. 5.
Materials Science & Engineering A (Structural Materials: Properties, Microstructure and Processing), 2004.
Materials Science & Engineering: A (Structural Materials: Properties, Microstructure and Processing), 2008. 485(Copyright 2008, The Institution of Engineering and Technology): p. 200-9.
Online since: July 2022
Authors: Manal Rajab, Kareema Ziadan
Carbon nanotubes created using several synthesis processes have great mechanical and thermal properties.
Multi-walled carbon nanotubes create distinct electrical [9], and mechanical features and mechanical properties [12].
This parameter is also one of the important variables affecting the electric properties of semiconductors.
Tucci, Numerical investigation on the influence factors of the electrical properties of carbon nanotubes-filled composites, Journal of Applied Physics. 113 (2013). https://doi.org/10.1063/1.4811523
Mechanical, Mechanical properties of multi-walled carbon nanotube / epoxy composites To cite this version : HAL Id : hal-02456622, (2020). 10.1016/j.matdes.2010.04.018 [23] Z.
Online since: September 2016
Authors: N.A. Myasnikova, Ph.V. Myasnikov, A.V. Sidashov
For strengthening the adhesion properties of the filler it was held modification of F4MB by activation using smoldering electric discharge [13, 14].
The change of test conditions (load, sliding speed), the addition of substances promoting the formation of a frictional transfer films in the tested composite material are referred to such factors.
And friction film formed on the friction surface gives high wear resistance and good anti-friction properties to the tribological conjunction.
Sidashov, Factors Affecting the Distribution of Mechanical Properties in Depth of Railway Wheel under Cyclic Loading, Deformation and Fracture of Materials. 12 (2007) 38 -42
Yablokov, The Adhesive Properties of Polytetrafluoroethylene Films, Modified in Plasma, Chemistry of High Energies. 6 (2009) 569-572
Online since: January 2015
Authors: Marcin Kwapisz
Introduction Materials of an ultrafine-grained and nanometric structure exhibit mechanical properties that often surpass those of conventionally obtained materials having phases or grain structures on a micrometric scale.
Ultrafine-grained structures and nanostructures can be characterized as being unique owing to their physical and mechanical properties, such as: high low-temperature strength and/or high stress superplasticity and others [1, 3, 6, 7].
During applying high deformations, strain anisotropy occurs in the material, which causes the anisotropy of mechanical properties.
Therefore, computation results are particularly affected by: the properties of material examined, friction conditions, and the kinetic and thermal parameters describing the plastic working process.
Kwapisz: The study of accumulation roll-bonding processes of aluminum and development of the model microstructure and mechanical properties, PhD dissertation, Czestochowa University of Technology, 2007
Online since: September 2007
Authors: Heek Wang Lee, Ahmad Bashir, Xing Dong Zhao, Shu Hong Wang
The formation of the EDZ is affected by various factors, such as stress redistribution and excavation methods.
The Granite specimens for physical properties test is mmmm mm 50160 130 ×× , and specimens have a excavated circular opening of 36mm in diameter.
Their physical and mechanical properties are summarized in Table 1.
Table 1 Physical and mechanical properties of rock samples Specific gravity Apparent porosity(%) P-wave velocity (m/s) S-wave velocity (m/s) Uniaxial compressive strength (Mpa) Young's modulus (Gpa) Poisson's ratio 2.62 0.69 3760 2210 180 32.58 0.24 Noise might easily interfere with AE signals even before they migrate to AE sensors.
It is worthwhile noting that at the beginning, the failure is controlled by the material properties around the excavation; e.g. the seismic source locations are mainly located in the EDZ.
Online since: November 2011
Authors: Hao Dong Duan, Zhong Wei Wang, Qing Yu
The reaction factors that maybe affect the melting point and thermal stability were investigated for preferred reaction conditions.
Synthesis of PSPPP Into a round flask equipped with mechanical stirrer and a gas inlet valve, SDP, BPOD and MgCl2 were added.
Various molar ratio of MgCl2: SDP was employed to investigate the effect of catalyst on the properties of PSPPP.
Taking account of the properties of product, final reaction temperature of 260 °C is more suitable for the synthesis of PSPPP.
Reaction time is also considered as one of the main factors that influence the properties of PSPPP.
Online since: August 2015
Authors: V. Sivakumar, E. Ganapathy Sundaram, B. Sakthikiran, T. Sanjay Krishnan, A. Riyaz Hussain
As a result the heat transfer between the system components of a solar still and thermal losses from the components will vary depending on their thermal properties like heat capacity, absorptance and thermal conductivity of components.
Due to this, the temperature variation of the different components of a solar still is not only the function of solar intensity nevertheless also the function of their thermal properties.
The various factors affecting the productivity of solar stills were reviewed by many researchers [1].
The physical properties of the water and the glass cover are constant in the operating temperature range. 10.
The input parameters for these equations include climatic data, operational parameters and thermo-physical properties of the conventional still.
Online since: November 2011
Authors: Jun Lan Li, Shao Ze Yan, Xue Feng Tan
The clamp band system is a typical locked and separated device of the launch vehicle (LV) / the spacecraft (SC), and its release-separation process is one of the important factors that affect the LV/SC separation movement.
Tan[6,7] used plate element model to analyze the dynamic properties of the launch vehicle and spacecraft (LV/SC) separation system and the influence of component failure.
We also discuss the effect of various factors involved in the dynamic envelope of the clamp band.
Fig.4 Envelope of the clamp band Fig.5 Radial displacement curves of V1-V7 Analysis of critical factors effect on dynamic envelope.
The characteristics of clamp bond dynamic envelope are studied by changing four critical factors during separation.
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