Archives-December 

The main aim of the paper is to design and simulate an inset fed rectangular microstrip patch antenna and study the effect of antenna dimension Length (L), Width (W), substrate parameter relative dielectric constant ( ) substrate thickness (h) and radiation parameters. The result is performed by thickness of 1.57mm of substrate and Rogers RT/duroid 5880 (tm) with dielectric constant of 2.2, S- band frequency 2.4GHz have observed the better result. In the recent years the development in communication systems requires the development of low cost, minimal weight, low profile antennas that are capable of maintaining high performance over a wide spectrum of frequency. This technological trend has focused much effort into the design of a Microstrip patch antenna. The proposed antenna design on different resonant frequencies and analyze the result of all operating frequency between 1GHz to 10GHz, when the proposed antenna designs 2.4GHz operating frequency. At 2.4GHz the verified and tested result has done in Ansoft HFSS version 11.It has observed the Return loss = -30.8 dB, VSWR =1.05 and directivity = 6.732 dB in this paper. An omnidirectional radiation pattern and stable gain are observed.

The proposed NLMS techniques have been modeled using Verilog HDL; the models have been verified using test benches with a functional coverage of 95%. The results obtained have been compared with MATLAB results, which are considered to be a benchmark. The HDL (Hardware Description Language) code is synthesized using Synopsys Design Compiler targeting 130-nanometer TSMC (Taiwan Semiconductor Manufacturing Company) library and target technology. The synthesized netlist obtained for all the adaptive filtering techniques proposed in this research work is taken through physical design flow consisting of Floorplanning Placement and Routing steps. The results obtained at each step are simulated for the functionality. The final GDSII (Graphical Design Standard II) file is generated for the proposed techniques.. The floor planning, placement and routing of the netlist ensures that the overall size for the entire chip does not exceed by 2.15 Square millimeters. The results obtained for NLMS adaptive filtering techniques using pipelining, parallel processing, low power techniques and floating point architectures have proven that the complexities in the industrial applications can be met if the design is implemented on ASIC.

Metoprolol is an anti hypertensive and also used in the treatment of arrhythmiasis. Owing to its extensive first pass metabolism, short biological half life and multiple daily dosing, Metoprolol lends itself as an ideal candidate for development of once a day extended release (ER) formulation. Metoprolol succinate ER pellets are prepared by employing various pelletization techniques such as powder layering, extrusion & spherodization and wurster process, ethylcellulose as a release modifier and polyethylene glycol as plasticizer. Optimized pellets are compressed in to tablets. The formulation evaluated for dissolution and 7%w/w Ethyl cellulose and 15% of plasticizer met with the predetermined specification. All the formulations followed first order kinetics and mechanism of drug release is non-fickian diffusion.

Desquamative gingivitis is a fairly common disorder, with wide range of causes. It is clinically characterized by erythematous and desquamative involvement of the free and attached gingiva. It may be the initial symptom of the underlying disorder, and patient may report to the general dental practitioner or subject specialist with specific signs and symptoms.. The presence of plaque induced gingival inflammation may exacerbate the condition, mask histological features of the underlying disorder, and can lead to delay in diagnosis and misdiagnosis. The present report describes case of desquamative gingivitis and its management.

This article presents some tools of discourse analysis through twenty spoken medical texts, ten in English and ten in Persian. The main objective of this article is to explain and exemplify different concepts regarding the field of discourse analysis in order to study these spoken texts in two languages to find the points of difference between them. First twenty spoken medical texts were recorded and transcribed. About one hundred sentences in each language that contained these features were chosen Then they were compared from the perspectives of fourteen features, including turn-taking, different types of interruptions, back-channel support, filled pauses, spoken discourse markers, intonation, repetition and false starts. The transcriptions were analyzed for the points of difference in each language and it was found that English speakers use more turn taking, silent interruption, filled pauses and intonation markers in their speech. Persian speakers are more active in using spoken discourse markers, .repetition, back channel support and false start. Chi-square was used to see whether these differences are significant and meaningful or not. It was estimated through chi-square that there was a significant difference between the two groups in turn taking, silent interruption, back- channel support, filled pauses, Falling-rising intonation, Rising intonation, Level intonation, and repetition and false starts in the way that English speakers are more inclined in using these features than Persian ones.

Distribution theory is powerful tool for dealing with pseudo-functions including impulsive phenomena, absolutely divergent integrals and their Fourier transforms. A new theory of generalized functions which is an extension of classical theory of distributions has been introduced and various properties have been generalized. The purpose of this paper is two dimensional fractional cosine transform is extended in the distributional generalized sense. Operators on the testing function E and its dual space E^* are obtained.

Since in Iranian university context, reading comprehension is the most important skill to be acquired by the students, this study wanted to show whether implementing pre-, while-, and post-reading activities has a significant impact on Iranian EFL Learners’ reading proficiency or not. 28 sophomore students at Islamic Azad University in Lahijan (Iran) participated in this study and were divided into two groups: experimental and control group. The former received teaching reading activities such as deducting, inferring, note-taking, etc. as the treatment while the latter did not receive such a treatment. The treatment proved to be effective, that is, the experimental group surpassed the control group according to the post-test. Finally, it is hoped that material developers, teachers and testers will benefit from the findings of this study.

Dufour effect on unsteady MHD flow through porous medium past an impulsively started inclined oscillating plate with variable temperature and mass diffusion is studied here. The fluid considered is gray, absorbing-emitting radiation but a non-scattering medium. The Governing equations involved in the present analysis are solved by the Laplace-transform technique. The velocity profile is discussed with the help of graphs drawn for different parameters.

The motion of an infinitesimal body with variable mass is studied. The equations of motion of the restricted three body problem with infinitesimal body of variable mass are introduced. The Jeans' law of mass change is applied. To tackle the dynamical problem, the Hamiltonian of the problem is formed with the time as independent variable. The solution of the equations of motion is formulated based on Lie series developments. Numerical representation of coordinates and momenta are given.

The growing trend tendency of web-based business world, emphasized on existence of an important and complementary component such as electronic banking as an undeniable necessity .In recent decades with development of communication and information tools, the volume of e-commerce significantly increased Such that between 2002 and 2006 on average each year 50% has added to the volume of trade exchange through electronic contexts. And its amount from 2,293 billion dollars in 2002 has reached to over 12,837 billion dollars in 2006. Given the widespread impact of electronic commerce and global markets dominance, it is necessary that the tools and contexts of transfer and exchange of money to keep pace with appropriate and desirable rate to the growth of e-commerce development. Adequacy of international Capital banks introduces the major risks associated with electronic banking as follows: strategic risk, credit risk, operational risk, liquidity risk, market risk and credit risk (reputation and history).One of the main identified risks in this field is that, All financial institutions Given the characteristics of the environment in which they operate And their activity amount are faced with operational risk that should be controlled As much as possible and determine the needed capital to manage it. Our main goal in this study is to identify operational risk factors in the electronic banking of Keshawarzi Bank. We first seek to identify risk factors that lead to this, so by control and reduction of impact of these factors the severity of this risk type is reduced and to bring about better management