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Online since: November 2024
Authors: Wega Trisunaryanti, Mokhammad Fajar Pradipta, Habib Fikri Hidayat, Muh. Siddik Ibrahim
Catalyst is one of the important factors in the ODS method.
The catalysts also observed magnetic properties. 2.3.
The results of the test of the magnetic properties of the catalyst are shown in Fig. 7.
Based on Fig. 7, Ps has magnetic properties as well as NiO-Ps, although NiO does not have magnetic properties.
Impregnation of Ni on Ps does not affect the magnetic properties of Ps to produce a NiO-Ps catalyst that remains magnetic, as evidenced by being attracted by a magnet.
Online since: October 2006
Authors: R. Kalish, A. Deneuville, Jacques Chevallier, Cecile Saguy, François Jomard
It may thus affect the properties of the material.
In this work, we present the state of the art on the understanding of the diffusion properties of hydrogen and of the hydrogen-dopant interactions in diamond.
Introduction Diamond is a material which combines an exceptional set of mechanical, chemical, thermal, acoustic, optical and electronic properties.
A theoretical approach of the thermodynamic and electronic properties of boron and hydrogen related complexes has been performed by Goss et al [18].
Actually, the conversion occurs in homoepitaxial layers having appropriate structural properties [20].
Online since: December 2008
Authors: Kang L. Wang, Igor V. Ovchinnikov
In addition, the number of transistors per chip has doubled every two years (by increasing the transistor density per unit area and increasing the chip size) and both these factors have caused an exponential rise in the leakage power of the chip.
Clearly the exact geometry of the gate electrode will change the capacitance and also affect the number.
For an atomic mass of say, 20, this factor will be about 200.
Such new materials as well as their new properties in exploiting non-equilibrium should be pursued.
We need to engage materials research to the feature size of atomic scale related to the following working principles of quantum theory: (1) Quantum mechanical tunneling (2) Many body effects and correlated electron (and other) systems as well as the interface properties (3) Control of atomic scale properties of materials in order to understand, characterize, control and eventually attain high manufacture yield.
Online since: October 2023
Authors: Akula Prakash, Sai Krishna Munipally, S. Kapilan
This is an important factor, but there are various more ways to improve the mechanism of autogenous self-recuperation.
Al-Tabbaa (2017), “Polymeric microcapsules with switchable mechanical properties for self-healing concrete: synthesis, characterisation and proof of concept”, Smart Mater.
B., “Effect of Addition of Combination of Admixtures on the Properties of Self Compacting Concrete Subjected to Alternate Wetting and Drying”, International Journal of Civil Engineering & Technology (IJCIET), Volume 2, Issue 1, 2011 [10] M.
Faris, Riadh Al-Mahaidi and Awad Jadooe, Implementation of Magnetized Water to Improve the Properties of Concrete, International Journal of Civil Engineering & Technology (IJCIET), Volume 5, Issue 10, 2014, pp. 43-57
[13] Akula Prakash and Rathod Ravinder (2018), “Properties of Self Compacting Concrete with Peri-Shuttering Technology, Indian journal for scientific technology”,17(2), 327-329 , ISSN NO:0976-2876 ISSN:2250-0138 [14] Akula Prakash, A.N.
Online since: February 2016
Authors: Emanuele Baravelli, Pasquale Maiorano, Antonio Gnudi, Susanna Reggiani, Giorgio Baccarani, Elena Gnani
This leads to a large gate-drain capacitance Cgd, which negatively affects the switching behavior of a TFET-based inverter, and is responsible for large overshoots of the output voltage, which further degrade the switching time.
CMOS logic is faster than TFET in both (a) self-loading and (b) constant loading, because it provides higher drive current at VDD = 0.4 V and is not significantly affected by the Miller effect.
An even greater performance loss affects the TFET inverter if a heavy capacitance load is applied.
Analysis approach The quantum-mechanical treatment for the investigation of the SL-FET is carried out self-consistently solving the open-boundary Schrödinger-Poisson equations in the effective-mass approximation with cylindrical coordinates.
Different material pairs provide different device characteristics because of the different energy filtering properties related with the material electronic structure, such as the electron mass and the barrier height between the two materials.
Online since: October 2008
Authors: Marcello Cabibbo
Introduction The relatively new nanocrystalline materials have received a great deal of attention as advanced engineering materials with improved physical and mechanical properties [1].
They can be produced using several techniques [2-7], via physical, chemical and thermo-mechanical means.
This is quite similar to the coarser ones in Fig. 1(a), the only clear difference being its lower size scale factor.
A summary of experimental conditions and mechanical properties (temperature and pressure of sintering, density of the compacts after sintering, resulting hardness and yield strength) is reported in Table 1.
In fact, all the refined microstructures having the grain size value shown in Table 4 are affected by extinction contours [33,37], denoting a thermal instability of the ultrafine structure upon reheating.
Online since: September 2018
Authors: Aleksandr A. Salov, Igor V. Fedoseev, Marina N. Yudenko
Town-planning interacts with the institutions of management, economics, infrastructure maintenance of the real estate market: the planning institution, the land management and technical inventory institution, the state cadastral real estate registration institution, the institution of state registration of real estate rights, the institution granting land for construction, institutions for mass evaluation of real estate for taxation purposes and individual evaluation of real estate, taxation institution of property.
Spatial planning is affected by a number of factors that can be combined into the following groups: – economic - the determining socio-economic processes that take place in a certain territory and which depend on the way land is used; – political - correlated with the policy at the national, regional and local level regarding the projected expectations regarding the manner in which land is used in the relevant territory; – demographic - related to the change in the structure of the population due to its natural and mechanical growth, depending on the different types of land for the purpose of performing such functions as: habitation - work - rest - service - technical infrastructure; – legal - are applied in accordance with the current rules and regulations, regulated by various legal instruments relating to the organization of the territory (laws, regulations, projects, etc.) in accordance with forms of ownership and other proprietary rights; – social - related to the achievement
The second type of household is the landless residents of the same city, in most cases young people who could not acquire higher-level residential property and, therefore, filled the niche of the lowest level, buying the cheapest housing.
The main property of this technology - for each precast reinforced concrete product uses its own metal form with a rigid non-refreshed scheme of sides and pallets.
Online since: April 2016
Authors: Lin Xu, Jian Ning Ding, Xiao Jing Xu, Zhen Huang, Xiao Ya Niu, Ni Na Han
The Effect of Current Density to Surface Morphology and Component of Micro-arc Oxidization Ceramic Coating of Pure Titanium Lin Xu1,a, Jian-ning Ding2,b, Zhen Huang3,c, Ni-na Han3,d, Xiao-jing Xu3,e and Xiao-ya Niu3,f 1Center of Micro/Nano Science and Technology, Jiangsu University, Zhenjiang 212013, China 2Changzhou University , Changzhou 213164,China 3School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China afgmnxl@163.com, bdingjn@ujs.edu.com, c807757333@qq.com, d2297636202@qq.com, eXjxu67@ ujs.edu.com, f593790127@qq.com Keywords: Pure titanium, Micro-arc oxidization(MAO), Current density, Microscopic structure, Component Abstract.
So, it’s an efficient way to improve the biological properties of titanium and titanium alloy that MAO method is used to do modification to titanium.
The important factors which affect the performance of MAO film are type of electrolyte, concentration, frequency, duty ratio, oxidation time, current density and so on[14, 15].In this paper, MAO technology is used to modify pure titanium, the porous oxide TiO2 ceramic coating containing Ca and P is fabricated on the surface of pure titanium.
Characterization of surface topography and property observation of MAO ceramic coating of pure titanium.
Online since: May 2009
Authors: Santanu K. Maiti
We show that the characteristic properties of persistent current strongly depend on total number of electrons e� , chemical potential µ, randomness and total number of channels.
This phenomenon is a purely quantum mechanical effect and gives an obvious demonstration of the Aharonov-Bohm effect [1].
As a consequence, both thermodynamic and kinetic properties oscillate with the magnetic flux φ.
Here we will describe the characteristic properties of persistent currents for some non-interacting multi-channel rings concerning the dependence of the current on total number of electrons e� , chemical potential µ, strength of disorder W and number of channels.
The characteristic properties of persistent current in the non-interacting one-channel rings and multi-channel cylinders have been presented in Section 2 showing its dependence on the total number of electrons e� , chemical potential µ, randomness and the total number of channels.
Online since: September 2007
Authors: Takayuki Kitamura, Hiroyuki Hirakata, Yoshimasa Takahashi
A minute mechanical loading apparatus (Nanofactory Instruments AB, SA2000N) built in a TEM specimen holder was used.
The critical stress intensity factor, KiC, is evaluated as 0.76 MPam1/2; here, Ki is the total stress intensity factor defined as Ki = (K12 + K22) 1/2.
Thus, the plastic deformation of the Cu layer would affect the delamination behavior.
The plastic property of Cu used in this section was evaluated on the same material in the in situ TEM experiment.
This indicates the stress intensity factor range is below the threshold.
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