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101.
Khan Masood Ahmed Awais Irfan Muhammad Ahmed Jawad 《Journal of Thermal Analysis and Calorimetry》2021,144(1):145-154
Journal of Thermal Analysis and Calorimetry - Analysis of thermal and solutal energy transport phenomena in Maxwell fluid flow with the help of Cattaneo–Christov double diffusion theory is... 相似文献
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105.
Jawad Y. Abuhlail 《Annali dell'Universita di Ferrara》2005,51(1):151-172
In this note we consider different versions of coinduction functors between categories of comodules for corings induced by a morphism of corings. In particular we introduce a new version of the coinduction functor in the case oflocally projective corings as a composition of suitable “Trace” and “Hom” functors and show how to derive it from a moregeneral coinduction functor between categories of type σ[M]. In special cases (e.g. the corings morphism is part of a morphism of measuringa-pairings or the corings have the same base ring), a version of our functor is shown to be isomorphic to the usual coinduction functor obtained by means of the cotensor product. Our results in this note generalize previous results of the author on coinduction functors between categories of comodules for coalgebras over commutative base rings. 相似文献
106.
Aerosols are defined in the simplest form as a mixture of solid or liquid particles suspended in a gas [1]. Brake dust is an aerosol, generated as a result of erosion between brake disc and brake pad. The aerosols can cause visual disorder, heart and lung diseases, short term acute symptoms like asthma, bronchitis and long term chronic irritation and inflammation of the respiratory track, which can lead to cancer. Therefore, it is important to know which factors are affecting the erosion rate of brakes. The main objective of this work is to measure the erosion rate of brake discs and brake pads, depending on temperature changes and deformation by performing experiments and simulations at varying velocities and load conditions. The general purpose, commercially available finite element solver Abaqus is used for performing the thermomechanically coupled simulations. Archad's Wear Law is used for the wear calculation. Experiments are conducted by using a pin on disc test bench. Temperature changes are measured by using thermocouples and erosion rates by measuring the total volume loss. At the end, relationships between erosion rates and temperature changes for different brake disc velocities and load conditions are investigated and experimental and simulation results are compared and discussed. (© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
107.
In the past two decades, many research is being carried out on coating of textile membranes with conductive polymers. In order to functionalize the textile membranes, coating of different intrinsically conductive polymers can be applied on these membranes through appropriate coating techniques like electrochemical polymerization, wet chemical oxidation and chemical vapor deposition (CVD). Noticeably, CVD process is one of the most suitable and environment friendly technique. In this research, microporous polyester and polytetrafluoroethylene (PTFE) membranes were coated with conductive poly(3,4‐ethylenedioxythiophene) (PEDOT) by CVD process in the presence of ferric(III)chloride (FeCl3) used as an oxidant. Polymerization of PEDOT on the surface of membranes and pore size was examined by optical microscope and scanning electron microscopy (SEM). Structural analysis investigated with ATR‐FTIR, which revealed the successful deposition of PEDOT on membranes without damaging their parent structures. The amount of PEDOT in PEDOT‐coated polyester and PTFE membranes was explored with the help of thermogravimeteric analysis. Electrical resistance values of PEDOT‐coated membranes were measured by two probe method. The effect of different electrolyte solutions such as, distilled H2O, Na2SO4, HCl, and H2SO4 on electrical properties of produced conductive membranes was investigated after dipping for certain period of time. It was found that membranes dipped in H2SO4 show very low electrical resistance values, i.e. 0.85 kΩ for polyester membrane and 1.17 kΩ for PTFE membrane. The obtained PEDOT‐coated electro‐active membranes may find their possible utility in fuel cells, enzymatic fuel cells, and antistatic air filter applications. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
108.
Jawad Y. Abuhlail 《Applied Categorical Structures》2006,14(5-6):379-409
Prime objects were defined as generalization of simple objects in the categories of rings (modules). In this paper we introduce
and investigate what turns out to be a suitable generalization of simple corings (simple comodules), namely fully coprime corings (fully coprime comodules). Moreover, we consider several primeness notions in the category of comodules of a given coring and investigate their relations with the fully coprimeness and the
simplicity of these comodules. These notions are applied then to study primeness and coprimeness properties of a given coring,
considered as an object in its category of right (left) comodules.
Supported by King Fahd University of Petroleum and Minerals, Research Project # INT/296. 相似文献
109.
Jawad Abrache Teodor Gabriel Crainic Michel Gendreau Monia Rekik 《Annals of Operations Research》2007,153(1):131-164
Combinatorial auctions are an important class of market mechanisms in which participants are allowed to bid on bundles of
multiple heterogeneous items. In this paper, we discuss several complex issues that are encountered in the design of combinatorial
auctions. These issues are related to the formulation of the winner determination problem, the expression of combined bids,
the design of progressive combinatorial auctions that require less information revelation, and the need for decision support
tools to help participants make profitable bidding decisions. For each issue, we survey the existing literature and propose
avenues for further research.
An earlier version of this paper appeared in 4OR 2, 1–33, 2004. 相似文献
110.
Abdul Jawad Shamaila Rani Salman Rafique 《The European Physical Journal C - Particles and Fields》2018,78(1):79
In this paper, we discuss the thermodynamical analysis for gravitationally induced particle creation scenario in the framework of DGP braneworld model. For this purpose, we consider apparent horizon as the boundary of the universe. We take three types of entropy such as Bakenstein entropy, logarithmic corrected entropy and power law corrected entropy with ordinary creation rate \(\Gamma \). We analyze the first law and generalized second law of thermodynamics analytically for these entropies which hold under some constraints. The behavior of total entropy in each case is also discussed which implies the validity of generalized second law of thermodynamics. Also, we check the thermodynamical equilibrium condition for two phases of creation rate, that is constant and variable \(\Gamma \) and found its vitality in all cases of entropy. 相似文献