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Emerging Science Journal

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Published by Ital Publication

ISSN : 26109182 EISSN : - DOI : -

Core Subject : Social,

Environmental Science

Emerging Science Journal is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering and sciences. While it encourages a broad spectrum of contribution in the engineering and sciences. Articles of interdisciplinary nature are particularly welcome.

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Articles 7 Documents

Search results for , issue "Vol 2, No 2 (2018): April" : 7 Documents clear

Mosaic and Trencadís in the Palau De La Música Catalana Cristina Martí Robledo
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

Modernism has provided Catalonia with buildings of great artistic value, such as the Palau de la Música Catalana located in the heart of Barcelona. Its architect, Lluís Domènech i Montaner, approached ornamentation as a thorough integration of arts and crafts: ceramic is treated as the ¨key¨ element, decorating the entire building while coating and protecting its internal metallic structure at the same time.During Modernisme, the classic mosaic technique, based on the use of small tiles (or tesserae) made of ceramics or glass paste, incorporated a new method called trencadís (A procedure carried out using irregular pieces of tiles fragmented randomly and put together in an abstract way).

Recent Issues in the Implementation of the New Basel Minimum Capital Requirements for Market Risk J. Orgeldinger
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

The Basel Committee suggested new ways of dealing with market risk in banks’ trading and banking books, in its October 2013 consultative paper, and subsequent versions published thereafter, for revised market risk framework FRTB. The Basel Committee estimates that the new rules will result in an approximate median capital increase of 22% and a weighted average capital increase of 40% (BCBS 2016), compared with the current framework. Budget reports on FRTB implementation range from costs of 5-million USD to 250-million USD. Key changes can be found in the internal model approach, in the standard rules and in the approval process. Significant changes introduced by the FRTB include stricter separation of the trading and banking book. Regardless of whether they use standardized or internal models, banks will need to review their portfolios to determine if existing classifications of instruments and desks as trading or banking book are still applicable, or whether a revision of desk structure is needed. In its article ‘Critical appraisal of the Basel fundamental review of the trading book regulation’ (Orgeldinger 2017) the theoretical foundations of the internal model approach IMA were analysed and the criticisms for FRTB risk models were investigated. A recent onslaught of rules is rendering the existing timeline for implementation practically impossible. In this article we present and critically evaluate different approaches to implement the new rules suggested by academics and major consulting companies.

Modeling and Implementing Nonlinear Equations in Solid-State Lasers for Studying their Performance Shotorbani, Ali Roudehghat; Saghai, Hassan Rasooli
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

In this paper, the effect of radius variation of beam light on output efficacy of SFD Yttrium aluminium borate laser doped with Neodymium ion, which is simultaneously a non-linear and active laser crystal, is investigated in a double-pass cavity. This is done with a concave lens that concentrates (Reduction of optical radius within nonlinear material) as much optical laser as possible, resulting in increasing the laser efficiency, second harmonic and the population inversion difference. In this study, we first developed five discrete differential equations describing the interactions of 807 nm pump beam, 1060nm laser beam and 530nm second harmonic beam. Output efficiencies of laser and second harmonic beams at pumping power of Pp =20W and beam radius of 5Î¼m have been presented. Meanwhile, in this paper, the first experiment for creating second harmonic in solid state lasers was fully described with a figure and its procedure was investigated and then the equations (second harmonic and laser and population inversion) were studied. Radius variation of beam light aims at increasing laser output efficacy and improving second harmonic and population inversion. The analytic methods which have been solved the discrete differential equations via Matlab.

A Novel Fully Differential Second Generation Current Conveyor and Its Application as a Very High CMRR Instrumentation Amplifier Ahmadi, Soma; Azhari, Seyed Javad
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

This paper aims to introduce a novel Fully Differential second generation Current Conveyor (FDCCII) and its application to design a novel Low Power (LP), very high CMRR, and wide bandwidth (BW) Current Mode Instrumentation Amplifier (CMIA). In the proposed application, CMRR, as the most important feature, has been greatly improved by using both common mode feed forward (CMFF) and common mode feedback (CMFB) techniques, which are verified by a perfect circuit analysis. As another unique quality, it neither needs well-matched active blocks nor matched resistors but inherently improves CMRR, BW, and power consumption hence gains an excellent matchless choice for integration. The FDCCII has been designed using 0.18 um TSMC CMOS Technology with Â±1.2 V supply voltages. The simulation of the proposed FDCCII and CMIA have been done in HSPICE LEVEL 49. Simulation results for the proposed CMIA are as follow: Voltage CMRR of 216 dB, voltage CMRR BW of 300 Hz. Intrinsic resistance of X-terminals is only 45 â„¦ and the power dissipation is 383.4 Î¼W.Â Most favourably, it shows a constant differential voltage gain BW of 18.1 MHz for variable gains (here ranging from 0 dB to 45.7 dB for example) removing the bottleneck of constant gain-BW product of Voltage mode circuits.

Wideband Directional Coupler for Millimeter Wave Application based on Substrate Integrated Waveguide Mohammad Javad Tavakoli; Ali Reza Mallahzadeh
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

Recently, Substrate Integrated Waveguide (SIW) techniques have been noticed for millimeter wave devices in microwave applications. In this paper, we are developing a wide band directional 3 dB coupler with a phase of 90̊ phase delay in the range of 30-40 GHz based on periodic vias and multi hole structure. For achieving this wide bandwidth multi-section coupler is designed based on the theoretical modeling and the simulation result is compared with HFSS and CST with two different numerical methods show good performance with low insertion and return loss, broad operational bandwidth and high isolation. A fractional bandwidth is about 28.5 %.

Recommendation Systems Based on Association Rule Mining for a Target Object by Evolutionary Algorithms Hossein Hatami Varzaneh; Behzad Soleimani Neysiani; Hassan Ziafat; Nasim Soltani
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

Recommender systems are designed for offering products to the potential customers. Collaborative Filtering is known as a common way in Recommender systems which offers recommendations made by similar users in the case of entering time and previous transactions. Low accuracy of suggestions due to a database is one of the main concerns about collaborative filtering recommender systems. In this field, numerous researches have been done using associative rules for recommendation systems to improve accuracy but runtime of rule-based recommendation systems is high and cannot be used in the real world. So, many researchers suggest using evolutionary algorithms for finding relative best rules at runtime very fast. The present study investigated the works done for producing associative rules with higher speed and quality. In the first step Apriori-based algorithm will be introduced which is used for recommendation systems and then the Particle Swarm Optimization algorithm will be described and the issues of these 2 work will be discussed. Studying this research could help to know the issues in this research field and produce suggestions which have higher speed and quality.

The Effect of Gender and Culture on Loneliness: A Mini Review Ami Rokach
Emerging Science Journal Vol 2, No 2 (2018): April
Publisher : Ital Publication

Loneliness is an experience determined by a person’s characteristics, her situational variables, gender, and background. This review article describes the myriad of studies, with sometimes contradictory results about the relation of loneliness to gender [with women commonly expressing, though not necessarily experiencing, greater loneliness], and the relation between loneliness and collectivistic and individualistic culture.

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