This paper studies the operating characteristics of an MX/Hk/1 queueing system under multiple vacation policy. It is assumed that the server goes for vacation as soon as the system becomes empty. When he returns from a vacation and there is one or more customers waiting in the queue, he serves these customers until the system becomes empty again, otherwise goes for another vacation. The brea...

This paper investigates the induced stresses in circular single deck roofs floating on seismically excited storage tanks. Equations of motion are derived using variational principle. Response of deck floating roofs is evaluated for two different classes of ground motions; near-source and long-period far-field records. Besides time histories and frequency contents for a specific tank, peak value...

In this paper we introduce some stability criteria for impulsive fuzzy system of differential equations with finite delay in states. Firstly, a new comparison principle for fuzzy differential system compared to crisp ordinary differential equation, based on a notion of upper quasi-monotone nondecreasing, in N dimentional state space is presented. Furthermore, in order to analyze the stability o...

In some quality control applications, the quality of a process or a product is described by the relationship between a response variable and one or more explanatory variables, called a profile. Moreover, in most practical applications, the qualitative characteristic of a product/service is vague, uncertain and linguistic and cannot be precisely stated. The purpose of this paper is to propose a ...

this paper deals with the behavior at infinity of solutions to a class of wave equations with nonlinear dampingterms defined in a semi-infinite cylinder. the spatial behavior of solutions is studied and an alternative ofphragmén-lindelöf type theorems is obtained in the results. the main point in the contribution is the use of energy method.

Studying Gaussian beam is a method to investigate laser beam propagation and ABCD matrix is a fast and simple method to simulate Gaussian beam propagation in different mediums. Of the ABCD matrices studied so far, reflection and refraction matrices at various surfaces have attracted a lot of researches. However in previous work the incident beam and the principle axis of surface are in parallel...

Considering the acceptance of culture as the principle predictorof understanding housing elements, including religious and behavioral patterns, is becoming increasingly important. This understanding can be clearly visualized in a city such as Kerman. Kerman is located in South-East of Iran andhas a diverse culture witha residential district in which Muslims, Zoroastrians, and Jews liveside b...

The article analyzes the features of targeted social assistance to elderly citizens and disabled. Targeted as a special type state is scientific practical interest. In modern conditions, basis for receiving support an important but insufficient element weakly reflects principle targeting. authors use description method that relevance, purpose, philosophy basic principle. criteria effectiveness ...

It has been recently claimed that explainability should be added as a fifth principle to AI ethics, supplementing the four principles are usually accepted in Bioethics: Autonomy, Beneficence, Nonmaleficence and Justice. We propose here with regard AI, on one hand is indeed new dimension of ethical concern paid attention to, while other hand, itself not necessarily considered an “principle”. thi...

We describe an ontological approach for determining the relevance of documents based on the underlying concept of exploiting complex semantic relationships among real-world entities. This research builds upon semantic metadata extraction and annotation, practical domain-specific ontology creation, main-memory query processing, and the notion of semantic association. A prototype application illu...