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To study the presence of incomplete fusion at energies around the Coulomb-barrier and to understand its dependence on various entrance-channel parameters, the incomplete fusion fractions have been deduced (i) from excitation function measurements for 18O,13,12C+159Tb, and (ii) from forward recoil range measurements for 12C+159Tb systems, at low energies (

An attempt has been made to understand the effect of entrance-channel parameters on low-energy incomplete fusion and a strong projectile dependence in terms of projectile’s α-Q-value has been observed. In the present work, the excitation functions of 16O,13,12C+159Tb systems have been measured and compared with PACE4 predictions to study the involvement of different reaction processes. The strength of incomplete fusion reactions for all the studied systems have been extraced and compared to find out the systematics.

This paper studies an infinite-buffer single server queueing model with negative customers and disasters. The ordinary (positive) customers arrive in the system according to the batch Markovian arrival process and join the queue for service. The negative customer and disaster are characterized by two independent Markovian arrival processes. A negative customer removes the positive customer undergoing service, if any, and a disaster makes the system empty by simultaneously removing all the positive customers present in the system. We obtain the steady-state vector generating function (VGF) of the distribution of the number of positive customers in the system at arbitrary epoch. Further, the inversion of the VGF is carried out using the roots method to obtain the distribution. Moreover, the probability vectors at post-departure and pre-arrival epochs are also obtained. The results obtained throughout the analysis are computationally tractable, as illustrated by few numerical examples. Finally, we discuss the impact of the correlation of the arrival process of negative customers and disasters on the performance of the system through some graphical representations. [ABSTRACT FROM AUTHOR]

The present paper investigates the effect of vertical magnetic field and dust particles on the stability of a micropolar fluid layer heated and soluted from below. The Lorentz force term is introduced due to the presence of a magnetic field, which gives rise to oscillatory motions in the system. The other reason for the introduction of overstable motions is the coupling between micropolar and thermosolutal effects. The normal mode technique, along with the Boussinesq approximation is used to derive the dispersion relation. The thermal Rayleigh number is found for both types of convections and it is observed that it is more for stationary motions than for oscillatory motions; except for high values of the suspended particles factor. The effect of solute Rayleigh number and Chandrasekhar number is to stabilize the micropolar fluid layer while dust particles hasten the onset of convection. Interestingly, as the suspended particle factor increases, the mode of instability shifts from overstability to stationary convection. The effect of micropolar coefficient of coupling is found to stabilize the fluid-particle layer for stationary convection. Some earlier known results are recovered as special cases from the present formulation. PACS Nos.: 47.10.-g, 47.10.A-, 47.10.ab, 47.10.ad, 47.20.-k, 47.20.Bp, 47.20.Gv. Nous etudions ici les effets d'un champ magnetique vertical et de la presence de particules de poussiere sur la stabilite d'une couche de fluide micro-polaire soumis a des sources de chaleur et de solute venant du bas. Nous introduisons la force de Lorentz pour tenir compte du champ magnetique qui cause des mouvements oscillants du systeme. L'autre raison pour introduire des mouvements surstables est le couplage entre les effets micro-polaire et thermosolutal. Nous utilisons la technique du mode normal avec l'approximation de Boussinesq pour obtenir la relation de dispersion. Le nombre thermique de Rayleigh est obtenu pour les deux types de convection et nous observons une plus grande stabilite en mouvement stationnaire plutot qu'oscillant, excepte dans le cas des hautes valeurs de particules en suspension. L'effet du nombre de Rayleigh et du nombre de Chandrasekhar est de stabiliser le fluide micro-polaire, alors que les particules en suspension provoquent la convection. Il est interessant de constater que lorsque les particules en suspension augmentent, le mode d'instabilite passe de la surstabilite a la convection stationnaire. Nous trouvons que le coefficient micro-polaire de couplage stabilise la couche fluide-particules pour la convection stationnaire. Finalement, nous retrouvons quelques resultats connus comme cas particuliers de notre formulation. [Traduit par la Redaction], 1. Introduction Eringen [1, 2] designed the theory for micropolar fluids to describe those systems that do not satisfy Navier-Stokes equations. A micropolar fluid contains a microrotation vector and a [...]

In the competitive business world, the whole thing is in a state of flux. It is not possible to know the exact outcomes of the strategies adopted by a company. Companies are always unsure of the customer's responses regarding their strategies, and the judgment of the decision-makers is correct to some extent but not always exact. To avoid erroneous estimations, the companies generally preferred the opinion of more than one expert. It is highly understood that no two experts will describe the similar payoffs for a mix of strategies used. Therefore, the payoff matrices, given by a group of experts, provide more information to select the best strategies for the companies. This paper presents an approach to solving bimatrix game problems with multiple experts in an intuitionistic fuzzy environment. Further, the applicability and superiority of the proposed method have been shown with the help of a real-life numerical example. [ABSTRACT FROM AUTHOR]

Queueing systems with batch Markovian arrival process (BMAP) have paramount applications in the domain of wireless communication. The BMAP has been used to model the superposition of video sources and to approximate the super-position of data, voice and video traffic. This article analyzes an infinite-buffer generally distributed batch-service queue with BMAP, general bulk service (a, b) rule and batch-size-dependent service time. In this proposed analysis, we mainly focus on deriving the bivariate vector generating function of queue and server content distribution together at departure epoch using supplementary variable technique. The mathematical procedure for the complete extraction of distribution at departure epoch has been discussed and using those extracted probabilities, we achieve the queue and server content distribution at arbitrary epoch. Finally, numerical illustrations have been carried out in order to make a deep insight to the readers which contains deterministic as well as phase-type service time distributions. [ABSTRACT FROM AUTHOR]