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Open AccessArticle
5 Pages, 1,183 KB Download PDF

Novel CPW-fed UWB antenna for X-band applications

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 2, Page # 78–82, 2019; DOI: 10.25046/aj040210
Abstract:

An ultra-wideband (UWB) printed antenna (PMA) powered by a compact coplanar waveguide (CPW) is featured. The propounded antenna is supposed to cover the UWB range from 7 GHz to 10 GHz, with return loss values below -10 dB in the whole frequency range, for X-band applications, often used for dense satellite communications. The 30 x…

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(This article belongs to the isaect-18 (Special Issue on Advanced Electrical and Communication Technologies 2019) & Section Telecommunications (TEL))
Open AccessArticle
10 Pages, 738 KB Download PDF

Insight into the IEEE 802.1 Qcr Asynchronous Traffic Shaping in Time Sensitive Network

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 292–301, 2019; DOI: 10.25046/aj040128
Abstract:

TSN is an attractive solution for latency-critical frame transmission built upon IEEE 802 architecture. Traffic scheduling and shaping in TSN aim to achieve bounded low latency and zero congestion loss. However, the most widespread solution (i.e. Time-Aware Shaper) requires a networkwide precision clock reference and only targets on cyclical traffic flows. This paper focuses on…

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(This article belongs to Section Telecommunications (TEL))
Open AccessArticle
10 Pages, 1,537 KB Download PDF

Performance Investigation of Semiconductor Devices using Commutation-speed based methodology for the application of Boost Power Factor Correction

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 1, Page # 258–267, 2019; DOI: 10.25046/aj040125
Abstract:

In this paper, behavioral approach has been adopted for the calculation of total power losses that has been further used to derive an analytical model for the conduction and switching losses in a boost Power Factor Correction (PFC) stage of an On-board Charger (OBC). Detailed investigation of power losses can help in finding out ways…

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(This article belongs to the SP6 (Special Issue on Recent Advances in Engineering Systems 2018-19) & Section Electrical Engineering (ELE))
Open AccessArticle
5 Pages, 588 KB Download PDF

Prospects of Wind Energy Injection in the Brazilian National Interconnected System and Impacts Analysis Through a Quasi-Steady Power Flow

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 6, Page # 185–189, 2018; DOI: 10.25046/aj030624
Abstract:

There is no doubt that the wind was the renewable source of energy that had the most significant growth during the last five years, and more importantly, the wind power source in Brazil has always been the cheapest and most competitive of all the others, so it is worth saying that wind have never been…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
9 Pages, 714 KB Download PDF

The Model Development of an Effective Triggering System of Production Kanban Size towards Just-In-Time (JIT) Production

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 298–306, 2018; DOI: 10.25046/aj030535
Abstract:

The contents of this article consist of an extension original work presented at the 4th International Conference on Control, Automation and Robotics (ICCAR 2018) and aims to develop the systematic model of an effective triggering system of production Kanban size towards Just-In-Time (JIT) production system. The developed model was introduced based on the philosophy of…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Industrial Engineering (EID))
Open AccessArticle
9 Pages, 356 KB Download PDF

Evolving AL-FEC Application on 5G NGMN-Edge Computing Systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 152–160, 2018; DOI: 10.25046/aj030519
Abstract:

Fifth generation of mobile networks (5G) comes to cope with the context of the new mobile telecommunications era. Edge computing is a new collaborative technology under standardization utilizing end-user devices or near-end-user edge devices to operate processing, communication, or control operations. The achievement of efficient error control is a very critical aspect in the successful…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Telecommunications (TEL))
Open AccessArticle
9 Pages, 1,504 KB Download PDF

On The Development of a Reliable Gate Stack for Future Technology Nodes Based on III-V Materials

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 36–44, 2018; DOI: 10.25046/aj030506
Abstract:

In this work, we discuss how the insertion of a LaSiOx layer in between an in-house IL passivation layer and the high-k has moved the III-V gate stack into the target window for future technology nodes. The insertion of this LaSiOx layer in the gate stack has reduced the Dit and Nbt below the target…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 2,336 KB Download PDF

Improvement of Transmission Characteristics in Multilayer Dual Band Filter

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 5, Page # 16–22, 2018; DOI: 10.25046/aj030503
Abstract:

This paper first simplifies the GA-optimized filter structure developed by us. Then the filter structure is modified by introducing slot and conductor stubs, based on electric fields and magnetic currents at resonant and transmission zero points. As a result, return losses in two passband regions are suppressed more than 28 dB, and also insertion loss…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 754 KB Download PDF

The Impacts of Distribution Generators’ Size and Location on Power Efficiency and Voltage Profile in Radial LV Networks

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 276–283, 2018; DOI: 10.25046/aj030428
Abstract:

This paper presents analytical methods for optimum allocation of distribution generators in a radial distribution network. The aim is to increase power efficiency and reduce loss of power. The ideal size of each distribution generator unit at the identified locations has been carefully selected by making adjustments to loss saving equations and the voltage on…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Electrical Engineering (ELE))
Open AccessArticle
6 Pages, 845 KB Download PDF

Wireless Channel Measurement and Modeling in Industrial Environments

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 254–259, 2018; DOI: 10.25046/aj030425
Abstract:

The Industrial Internet of Things (IIoT), a typical use case of the Internet of Things, has been a great prospect for development in the near future. In the developing fifth generation mobile communications, the IIoT is an extremely important application case. In this paper, the channel propagation properties are researched and modeled based on the…

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(This article belongs to the SP5 (Special Issue on Multidisciplinary Sciences and Engineering 2018) & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 866 KB Download PDF

Complete Modeling of the Hydrogen Stored in a Spherical Cavity

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 122–129, 2018; DOI: 10.25046/aj030413
Abstract:

Hydrogen is the lightest of gases and possesses the lowest density. However at ambient temperature and pressure it occupies a large volume. This necessitates compressing it at high pressures up to 800 Bars to minimize the volume. The immense interest generated by hydrogen comes from the fact that it has the best energy per weight…

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(This article belongs to Section Energy & Fuels (ENF))
Open AccessArticle
10 Pages, 1,010 KB Download PDF

Effectiveness of Routing Protocols for Different Networking Scenarios

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 4, Page # 112–121, 2018; DOI: 10.25046/aj030412
Abstract:

Selection of a routing protocol is vital for modern arena of Internet communication as network traffic and network complexities are rapidly increasing. This paper evaluates the effectiveness of three routing protocols namely routing information protocol version 2 (RIPv2), open shortest path first (OSPF), enhanced interior gateway routing protocol (EIGRP), and hybrid protocols based on these…

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(This article belongs to Section Information Systems in Computer Science (CIS))
Open AccessArticle
4 Pages, 543 KB Download PDF

Weight Parameters and Green Tea Effect; A Review

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 3, Page # 104–107, 2018; DOI: 10.25046/aj030314
Abstract:

The objective was to review and add literature whether green tea is helpful for weight reduction. Reviewing the randomized, double-blind, placebo-controlled trials to compare green tea extracts for weight loss from various online sources including Ovid MEDLINE, PubMed, and Cochrane databases studies published in 2006, 2007 and 2008 in English language were considered. In each…

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(This article belongs to Section Multidisciplinary Sciences (MUS))
Open AccessArticle
8 Pages, 1,234 KB Download PDF

Three port converters used as interface in photovoltaic energy systems

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 2, Page # 263–270, 2018; DOI: 10.25046/aj030231
Abstract:

The aim of this paper is to derive and study a full-bridge three-port converter. Based on the standard design of full-bridge converter, we have modeled and derived a three port converter. The three port converter can be used in renewable energy scenarios, such as solar cells or wind turbines connected to the input port. The…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
7 Pages, 751 KB Download PDF

Modeling of the wave functions and of the energy states of hydrogen stored in a spherical cavity

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 2, Page # 157–163, 2018; DOI: 10.25046/aj030218
Abstract:

This article examines the hydrogen storage phenomenon in a spherical cavity. The hydrogen gas or liquid is subjected to high pressures, leading to significant loss of mass of hydrogen, and requires materials that can withstand these high pressures also minimize losses. For all these reasons, the problem is considered at the quantum scale. So in…

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(This article belongs to Section Energy & Fuels (ENF))
Open AccessArticle
11 Pages, 911 KB Download PDF

Enhanced Outdoor to Indoor Propagation Models and Impact of Different Ray Tracing Approaches at Higher Frequencies

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 2, Page # 58–68, 2018; DOI: 10.25046/aj030207
Abstract:

The main target of this article is to study the provision of indoor service (coverage) using outdoor base station at higher frequencies i.e. 10 GHz, 30 GHz and 60 GHz. In an outdoor to indoor propagation, an angular wall loss model is used in the General Building Penetration (GBP) model for estimating the additional loss…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 1,107 KB Download PDF

Parametric Study of Micro Strip Patch Antenna Using Different Feeding Techniques for Wireless and Medical Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 310–316, 2025; DOI: 10.25046/aj030137
Abstract:

Due to the increasing bandwidth requirement of modern wireless communication systems, developing antenna having wider bandwidth have been receiving significant attention in the recent years. In this paper, a comparative analysis of the contacting feed (micro strip line and coaxial probe) and non-contacting feed mechanism (both Aperture Coupling and Proximity Coupling) in micro strip patch…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 935 KB Download PDF

Analysis of Outdoor and Indoor Propagation at 15 GHz and Millimeter Wave Frequencies in Microcellular Environment

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 160–167, 2018; DOI: 10.25046/aj030120
Abstract:

The main target of this article is to perform the multidimensional analysis of multipath propagation in an indoor and outdoor environment at higher frequencies i.e. 15 GHz, 28 GHz and 60 GHz, using “sAGA” a 3D ray tracing tool. A real world outdoor Line of Sight (LOS) microcellular environment from the Yokusuka city of Japan…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
6 Pages, 823 KB Download PDF

Design and Simulation of an RF-MEMS Switch and analysis of its Electromagnetic aspect in realtion to stress

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 76–81, 2018; DOI: 10.25046/aj030109
Abstract:

Microelectromechanical Systems (MEMS) are devices made up of several electrical and mechanical components. They consist of mechanical functions (sensing, thermal, inertial) and electrical functions (switching, decision making) on a single chip made by microfabrication methods. These chips exhibit combined properties of the two functions. The size of system has characteristic dimensions less than 1mm but…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electronic Engineering (EEE))
Open AccessArticle
6 Pages, 911 KB Download PDF

Analysis of Economic Load Dispatch with a lot of Constraints Using Vortex Search Algorithm

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 151–156, 2017; DOI: 10.25046/aj020619
Abstract:

In modern powers systems, one of the most considerable topics is economic load dispatch (ELD). ELD is non-linear problem and it became non-convex and non-smooth problem with some constraints such as valve point loading effect. ELD is very crucial for energy generation and distribution in power systems. For solving ELD problem, a lot of methods…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Electrical Engineering (ELE))
Open AccessArticle
6 Pages, 1,168 KB Download PDF

Leaf-shaped solar cell antenna for Energy Harvesting and RF Transmission in ku-band

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 6, Page # 130–135, 2017; DOI: 10.25046/aj020616
Abstract:

In this paper, a hybrid system solar cell antenna was studied. Our contribution lies in the combination of both optical and radio-frequency signals in a solar cell antenna. Hence, we propose a new method to merge antenna and solar cell. The leaf- shaped patch solar cell antenna was dedicated at a time to the energy…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))
Open AccessArticle
5 Pages, 787 KB Download PDF

A Review of Anti- Podal Vivaldi Antenna Operating in Cellular Mobile Communications

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 4, Page # 204–208, 2017; DOI: 10.25046/aj020427
Abstract:

The antenna proposed is a new geomantic structure of Ultra-Wideband (UWB) Anti- Podal Vivaldi antenna (AVA). It remarkably offers an attractive performance over the bands of cellular networks. However, its benefits are not limited only in particular applications, whereas radar imaging, mining detection, the biomedical science in the heating of brain cancer tumor and treatment,…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
8 Pages, 947 KB Download PDF

Scalability Dilemma and Statistic Multiplexed Computing — A Theory and Experiment

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1453–1460, 2017; DOI: 10.25046/aj0203181
Abstract:

The For the last three decades, end-to-end computing paradigms, such as MPI (Message Passing Interface), RPC (Remote Procedure Call) and RMI (Remote Method Invocation), have been the de facto paradigms for distributed and parallel programming. Despite of the successes, applications built using these paradigms suffer due to the proportionality factor of crash in the application…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
7 Pages, 1,745 KB Download PDF

Optimal Rotor Design of Line Start Permanent Magnet Synchronous Motor by Genetic Algorithm

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1181–1187, 2017; DOI: 10.25046/aj0203149
Abstract:

Line start permanent magnet synchronous motor (LSPMSM) is one of the highest efficiency motors due to no rotor copper loss at synchronous speed and self-starting. LSPMSM has torque characteristics of both induction motor IM and Permanent Magnet Synchronous Motor-PMSM. Using Genetic Algorithm (GA) for balancing magnetic cost and for copper loss minimization, the magnetic sizes…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Robotics (ROB))
Open AccessArticle
6 Pages, 1,339 KB Download PDF

Electromagnetic Field and Lumped Circuit Analysis of Planar Transformer at Medium Frequency for Converter Application

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 878–883, 2017; DOI: 10.25046/aj0203109
Abstract:

High frequency planar transformer is a new type of transformer that operates at high frequency. Its significance is proved through its miniaturised features, high power density and other performances. The design of planar transformer needs to consider several fundamental factors, including core material, dimension of layers and winding pattern. As the volume decreases, extra attentions…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Electronic Engineering (EEE))

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