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Keyword: Losses
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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
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
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
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
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
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, 1,339 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))
Open AccessArticle
7 Pages, 1,279 KB Download PDF

Power requirements and battery life measurement for wireless transmission between two nodes in different mediums

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 605–611, 2017; DOI: 10.25046/aj020377
Abstract:

One of the most important roles of the wireless sensor networks (WSN) is to avoid wiring costs, be self-sustainable and be able to function for several years. However, due to the slow progress in battery technology, power continues to be a limited resource in wireless sensor communication and electric energy storage remains to be an…

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

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