استعرض المجلات العلمية حسب العنوان

الآن تُعرض المواد 169 -- 188 من 1523

    • A New Application of Sawi Transform for Solving Ordinary differential equations with Variable Coefficients 

      Rashdi, Hisham Zawam; Attaweel, Mohammed E. (ELMERGIB UNIVERSITY, 2022-01)
      الملخص: في هذه الورقة، طبقنا تحويل تكاملي جديد (تحويل ساوي) لحل بعض المعادلات التفاضلية العادية ذات معاملات متغيرة. Abstract: In this paper, a new integral transform was applied to solve ordinary differential equations ...

    • A NEW CMOS DESIGN AND ANALYSIS OF CURRENT CONVEYOR SECOND GENERATION (CCII) 

      SHAKTOUR, MAHMOUD AHMED; OKASHA, AlAA YOUSEF (Elmergib University, 2016-12)
      This paper describes the current conveyors used as a basic building block in a variety of electronic circuit in instrumentation and communication systems. Today these systems are replacing the conventional Op-amp in so ...

    • Non _Equivalence at Word Level 

      Isweesi, Waleed Alnouri (ELMERGIB UNIVERSITY, 2019-06)
      لكل عملية ترجمة هدف أو عدة أهداف محددة , غير أن الهدف الأساسي والرئيسي للترجمة هو عملها كحلقة وصل بين الناس بمختلف ألسنتهم وثقافاتهم . ومن هذا المنطلق تعد الترجمة مهمة ليست بيسيرة كما يظن الكثير من الطلاب , وللشروع في عملية ...

    • A novel Piggyback Scheme to Improve the Performance Of MAC Layer Based on IEEE802.11n 

      Ali Ahmad, Milad; Saad Mohamed, Lafi (Elmergib Uinversity, 2016-06)
      Our scheme is to improve the performance of MAC layer based on IEEE802.11n, when the data transferring in reverse direction from side A to side B, side B does not need to send only ACK, it can be wait for a time and ...

    • nthesis of ZnS nanocombs-like by thermal evaporation method 

      عبد الرحمن, مبروكة محمد (ELMERGIB UNIVERSITY, 2015-06)
      In this study, nanocombs-like zinc sulphide “ZnS” have been grown using simple low cost thermal evaporation method via vapor-liquid-solid (VLS) mechanism. The nanocombs-like were grown on silicon wafers coated with silver ...

    • NUMERICAL SOLUTIONS OF BERNOULLI DIFFERENTIAL EQUATIONS WITH FRACTIONAL DERIVATIVES BY RUNGE-KUTTA TECHNIQUES 

      Ahmed, Mufeedah Maamar (Elmergib University, 2021-06)
      In this article, we discussed the numerical solution of Brnoulli's equation with fractional derivatives subject to initial value problems by applying 4th order Runge-Kutta, modified Runge-Kutta and Runge-Kutta Mersian ...

    • Numerical solutions to nonlinear Schrödinger equations in silicon waveguides 

      ben Uounis, Nesreen U; Mansor, Mohamad A; Abuazza, Abdulbaset A (Elmergib University, 2020-12)
      This research shows the most important properties of electromagnetic waves and waveguides as a means to transferring information, communications and various applications, and the importance of nonlinear equations and there ...

    • On a certain class of p-valent functions with negative coefficients 

      Amsheri, S. M.; Abouthfeerah, N. A. (ELMERGIB UNIVERSITY, 2022-01)
      In this paper we introduce a new class of p-valent starlike functions with negative coefficients defined by fractional derivative operator. We obtain coefficient bounds, distortion inequalities, Hadamard product, linear ...

    • On Coefficient Bounds for Certain Classes of Analytic Functions 

      Amsheri, S. M. (ELMERGIB UNIVERSITY, 2021-07)
      In the present paper we obtain Fekete-Szegö inequalities and sharp bounds for certain classes of analytic and p-valent functions in the open unit disk involving certain fractional derivative operator.

    • On some finitely generated subsemigroups of S(X) 

      Algadid, Yousef Ali; Hannun, Waleed Abdelwahab (ELMERGIB UNIVERSITY, 2020-06)
      S(X) is the semigroup, under composition, of all continuous selfmaps of the topological space X. In this paper, we show for a number of spaces that S(X) contains a dense subsemigroup generated by two elements when S(X) ...

    • ON SOME SUBCLASSES OF MULTIVALENT STARLIKE FUNCTIONS 

      Abouthfeerah, N. A; Amsheri, S. M (Elmergib University, 2021-06)
      In the present paper, we introduce two new subclasses T_(m.λ.μ,η,δ)^* (p,α,β,σ) and C_(m,λ,μ,η,δ) ( p,α,β,σ) of multivalent starlike functions in the open unit disk defined by using certain fractional calculus operator. ...

    • On the fine spectrum of the generalized difference operator B(r,s) over the Hahn sequence space h 

      Abu-Janah, Suad H. (ELMERGIB UNIVERSITY, 2022-01)
      Of particular interest to many researchers are the investigation of the spectra of the difference operator and its generalizations over sequence spaces. In this work, we will introduce the spectra analysis of the generalized ...

    • Oneness and existence of the solution to the problem of boundary values for ‎a set of second-order partial differential equations 

      مسعود خليفة سحاب, إيمان (ELMERGIB UNIVERSITY, 2023-01-01)
      Abstract: Most of the problems of mathematical physics, when solving them, result in ‎solving one or more partial differential equations with imposed initial and boundary ‎conditions. This is known as boundary value problems ...

    • An optimal fuzzy zero point method for solving fuzzy transportation problem 

      bilkour, Manal Mohammed (ELMERGIB UNIVERSITY, 2023-07)
      One of the first uses for Linear Programming (LP) issues was the transportation problem. In order to cut costs, transportation models are widely used in transportation and the supply chain. When the demand, cost and supply ...

    • Optimal Performance of Disk Drive Read system using Classical Controller 

      موسى الأسطل, سائد سليمان; علي المدهون, سالم حسين (ELMERGIB UNIVERSITY, 2013-06)
      The classical control methods (P, PD, PID, control low, ,etc) of dynamic control will be applied to the disk drive read system. The goal of the disk drive reader device is to position the reader head in order to read ...

    • Oscillation Criterion for Second Order Nonlinear Differential Equations 

      Saad, M. J.; Kumaresan, N.; Ratnavelu, Kuru (ELMERGIB UNIVERSITY, 2022-01)
      In this paper, some the sufficient conditions for the oscillation of the solutions of the second order non-linear ordinary differential equation of the form are obtained using Riccati Technique. The given results are ...

    • Oxidative stress as a risk factor of the acrylamide toxicity in the weaning male and female rats 

      El Abiad, Salma Abdu Allah; Elkilany, Atia Ramadan (Elmergib Uinversity, 2016-01)
      The Swedish National Authority reported the presence of elevated levels of acrylamide (ACR) in certain types of food processed at high temperature. The present study was performed to evaluate the toxicity of ACR in ...

    • Parametric effect on discrete dynamic systems causing of chaos and dispersion 

      EL-Rifae, A. H; Abusutash, Z. A (Elmergib University, 2020-12)
      In the past the logistic equation where applied to real numbers and produes no dispersion and chaos, in this paper, we present the equivalent system of complex logistic equation. We will study parametric behavior on discrete ...

    • Parametric Tension on the Differential Equation 

      Sabra, E. G.; EL- Rifae, A. H. (ELMERGIB UNIVERSITY, 2021-07)
      In this purely, the focus will be on the parametric effect in several cases, and we will study the existence and uniqueness of the solution and the continuous dependence in three cases, first on the parameter μ, and secondly ...

    • Perceptions and Preferences of ESL Students Regarding the Effectiveness of Corrective Feedback in Libyan Secondary Schools 

      بالحاج, حسين علي (ELMERGIB UNIVERSITY, 2015-06)
      This study investigates the perceptions and preferences of ESL learners in Libyan secondary schools, regarding the corrective feedback. The results are based on the analysis of the responses to 120 questionnaires ...