Applying mathematical models and numerical methods is crucial for describing simulating the metal cold-rolling process, wherein accurate prediction of rolling force an effective way to improve quality rolled sheets. This paper considers key influencing parameters such as friction lubrication, stress, tension, roll-flattening radius during process establishes a calculation model coefficient radi...

Cohesionless gap-graded soils are susceptible to volumetric internal erosion, also called suffusion, under the action of seepage flow through porous material. More precisely, during suffusion three processes simultaneously take place: detachment, transport and possible filtration fine particles. This paper proposes a new relationship describe development based on energy approach. The proposed i...

this study was carried out to evaluate the ekiti state social security scheme (essss) in nigeria. specifically, the study estimated the food security status of the beneficiaries and non beneficiaries of the scheme, assessed the effect of the social security scheme on households’ food security status, and identified the constraints to the implementation of the scheme in the state. a three stage ...

This paper presents a new safety specification method that is robust against errors in the probability distribution of disturbances. Our proposed distributionally robust safe policy maximizes the probability of a system remaining in a desired set for all times, subject to the worst possible disturbance distribution in an ambiguity set. We propose a dynamic game formulation of constructing such ...

Enterprise Systems need to be configured to fit organizational requirements and to provide support for their business operations. Reference models aim at supporting this task but fail in providing adequate conceptual support due to missing configurability of the models themselves. Our research extends the work on a configurable reference modeling approach. In previous research we developed a co...

This paper adopts a notion of expectation-perception gap of systems users as information systems (IS) failure. Problems leading to the expectation-perception gap are identified and modelled as five interrelated discrepancies or gaps throughout the process of information systems development (ISD). It describes an empirical study on how systems developers and users perceive the size of each gap a...

In this paper we consider two recurrent neural network model for solving linear and quadratic programming problems. The first model is derived from an unconstraint minimization reformulation of the program. The second model directly is obtained of optimality condition for an optimization problem. By applying the energy function and the duality gap, we will compare the convergence these models. ...

this paper presents a comprehensive case study on electro-mechanical analysis of mems[1] variable capacitors. using the fundamental mechanical and electrical equations, static and dynamic behaviors of the device are studied. the analysis is done for three different modes, namely: dc (static mode), small signal ac and large signal regime. a complete set of equations defining dynamic behavior of ...

Background: Treatment of drug addicts is one of the main strategies of drug control in Iran. Client satisfaction strongly influences the success of any treatment program. This study aimed to explore the difference between customer expectations and perceptions in drug addiction treatment centers of Kerman, Iran, using SERVQUAL model. Methods: Using a cross-sectional design 260 clients referring ...