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排序方式: 共有253条查询结果,搜索用时 15 毫秒
51.
Dofe Vidya S. Sarkate Aniket P. Azad Rajaram Gill Charansingh H. 《Research on Chemical Intermediates》2018,44(2):1149-1160
Research on Chemical Intermediates - Searching for new active molecules against human breast cancer cell line MCF-7, novel quinoline based thiazolidinones has been efficiently synthesized under... 相似文献
52.
53.
E. Azad 《Heat and Mass Transfer》2011,47(12):1651-1658
The thermal performance of co-axial heat pipe solar collector which consist of a collector 15 co-axial heat pipes surrounded
by a transparent envelope and which heat a fluid flowing through the condenser tubes have been predicted using heat transfer
analytical methods. The analysis considers conductive and convective losses and energy transferred to a fluid flowing through
the collector condenser tubes. The thermal performances of co-axial heat pipe solar collector is developed and are used to
determine the collector efficiency, which is defined as the ratio of heat taken from the water flowing in the condenser tube
and the solar radiation striking the collector absorber. The theoretical water outlet temperature and efficiency are compared
with experimental results and it shows good agreement between them. The main advantage of this collector is that inclination
of collector does not have influence on performance of co-axial heat pipe solar collector therefore it can be positioned at
any angle from horizontal to vertical. In high building where the roof area is not enough the co-axial heat pipe solar collectors
can be installed on the roof as well as wall of the building. The other advantage is each heat pipe can be topologically disconnected
from the manifold. 相似文献
54.
Suction Induced Effects on the Fabric of a Structured Soil 总被引:3,自引:0,他引:3
Azad Koliji Lyesse Laloui Olivier Cusinier Laurent Vulliet 《Transport in Porous Media》2006,64(2):261-278
This paper presents the mathematical modelling of the modification of the pore space geometry of a structured soil subjected
to suction increase. Structured soil concepts are first introduced considering different fabric units, such as aggregates
and fissures. The numerical modelling of the structural evolution is based on experimental test results in which the evolution
of the structure of the samples subjected to different suctions is determined using the mercury intrusion porosimetry technique.
From this information, the macro and micropore volume evolutions are determined. The results show that drying produces a reduction
in the soil total porosity which mainly corresponds to a reduction of the macropore volume. Associated with this phenomenon,
an increase in micropore volume is also observed. The proposed model divides pore size distribution into three pore classes
(micropores, macropores and non-affected areas). Using the concept of a suction-influenced domain, the proposed model is able
to reproduce the main observed fabric evolution between the saturated and dry states. 相似文献
55.
Roya Azad Abolfazl Bezaatpour Mandana Amiri Habibollah Eskandari Sima Nouhi Dereje H. Taffa Michael Wark Rabah Boukherroub Sabine Szunerits 《应用有机金属化学》2019,33(9)
A novel heterogeneous composite material based on reduced graphene oxide (rGO) and bismuth vanadate (BiVO4) was prepared and characterized by various techniques such as powder XRD, HRTEM, EADX, UV–Vis‐DRS, FT‐IR, Raman, BET and XPS analyses. The characterization results reveal that the rGO well decorated by BiVO4. The electrochemical impedance spectroscopy (EIS) shows the increasing of charge transfer of rGO/BiVO4 in presence of light irradiation. In this research, the pure BiVO4 and rGO/BiVO4 composite have been explored for photocatalytic reduction of nitroarenes. Among the prepared nanocomposites, rGO loaded with 10% BiVO4 catalyst (noted as rGO/BiVO4–10%) shows the best performance for the photo‐reduction of various nitroaromatic molecules to their corresponding amine compounds under visible‐light irradiation at room temperature. The catalyst exhibited in particular excellent photocatalytic activity for the conversion of 1,4‐dinitrobenzene to 4‐nitroanilline (100% conversion) in 20 min, 4‐chloronitrobenzene to 4‐chloroaniline and 2‐nitrophenol to 2‐aminophenol (100% conversion) in only 30 min. In addition, the conversion of 4‐bromonitrobenzene, 4‐iodonitrobenzene to their corresponding amine compounds (100% conversion) was achieved in 60 min. The catalyst was recovered for several times and reused without decreasing of its efficiency. 相似文献
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57.
R. Yulita Molliq M.S.M. Noorani I. Hashim R.R. Ahmad 《Journal of Computational and Applied Mathematics》2009,233(2):103-108
This paper presents the approximate analytical solution of a fractional Zakharov–Kuznetsov equation with the help of the powerful variational iteration method. The fractional derivatives are described in the Caputo sense. Several examples are given and the results are compared to exact solutions. The results show that the variational iteration method is very effective, convenient and simple to use. 相似文献
58.
A.K. Alomari M.S.M. Noorani R. Nazar 《Communications in Nonlinear Science & Numerical Simulation》2009,14(4):1196-1207
In this paper, by means of the homotopy analysis method (HAM), the solutions of some Schrodinger equations are exactly obtained in the form of convergent Taylor series. The HAM contains the auxiliary parameter ?, that provides a convenient way of controlling the convergent region of series solutions. This analytical method is employed to solve linear and nonlinear examples to obtain the exact solutions. HAM is a powerful and easy-to-use analytic tool for nonlinear problems. 相似文献
59.
Haza Saleh Alayachi M. S. M. Noorani E. M. Elsayed 《Journal of Applied Analysis & Computation》2020,10(4):1343-1354
In this paper, we will investigate some qualitative behavior of solutions of the following fourth order difference equation $x_{n+1}=ax_{n-1}+\frac{bx_{n-1}}{cx_{n-1}-dx_{n-3}},$ \ $n=0,1,...,$ where the initial conditions $x_{-3,}x_{-2},\ x_{-1}$\ and\ $x_{0}\ $are arbitrary real numbers and the values $a,\ b,\ c\ $and$\;d$ are\ defined as positive real numbers. 相似文献
60.