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Open AccessArticle
15 Pages, 1,640 KB Download PDF

Optimization of Sheet Material Layout in Industrial Production Using Genetic Algorithms

Advances in Science, Technology and Engineering Systems Journal, Volume 10, Issue 5, Page # 51–65, 2025; DOI: 10.25046/aj100506
Abstract:

We address irregular polygon nesting on sheet materials with a lightweight evolutionary framework that operates directly in the layout space. The method formalizes multi-term fitness combining utilization, overlap penalties, spacing regularity, and local alignment, with all components normalized before aggregation. Feasibility is enforced by an AABB– SAT pipeline and validated via analytic ground-truth cases, degenerate…

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(This article belongs to the SP19 (Special Issue on Innovation in Computing, Engineering Science & Technology 2025-26) & Section Industrial Engineering (EID))
Open AccessArticle
7 Pages, 6,496 KB Download PDF

Analysis of Layout Arrangement for CMOS Oscillators to Reduce Overall Variation on Silicon

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 5, Page # 46–52, 2022; DOI: 10.25046/aj070507
Abstract:

This investigation demonstrates the analysis of various layout arrangements for oscillator (OSC) realized by CMOS technologies. Moreover, the analysis reveals that the serpentine style of OSC stages attains the minimum output variation on silicon. This investigation is firstly verified by post-layout simulations, comparing the variation with different kinds of layout arrangement for OSC designs, including…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 823 KB Download PDF

Optimizing the Wind Farm Layout for Minimizing the Wake Losses

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 309–315, 2021; DOI: 10.25046/aj060135
Abstract:

The development of wind farms requires an optimal design of wind turbines layout. The main goal of this optimization is to minimize the wake effect through the optimal placement of the wind turbines. The current study aims to standardize the wake losses among all wind turbines in the wind farm and bringing their losses to…

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(This article belongs to Section Environmental Engineering (EEV))
Open AccessArticle
8 Pages, 1,055 KB Download PDF

Effects of Using Fuzzy Material Handling Inputs in the Genetic Algorithm for Machine Layout

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 133–140, 2019; DOI: 10.25046/aj040416
Abstract:

This study introduces the implementation of fuzzy set theory to solve machine layout design issues, in order to handle vague information, using a genetic algorithm with tournament selection as the selection operator. The material handling inputs, including frequency and volume of materials that move between machines, were the parameters regarded as fuzzy numbers. The experimental…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Manufacturing Engineering (EMF))
Open AccessArticle
6 Pages, 490 KB Download PDF

Incremental Control Techniques for Layout Modification of Integrated Circuits

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 1196–1201, 2017; DOI: 10.25046/aj0203151
Abstract:

Analog layout is created in integrated circuits (IC) computer aided design (CAD) environment and during realization requires a lot of modifications of database objects. Because database objects modification is time consuming, then any improvement and simplification of modification flow in IC CAD environment can increase layout productivity. A proposed new modification concept can speed-up layout…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Electrical Engineering (ELE))
Open AccessArticle
8 Pages, 1,666 KB Download PDF

Development of Miniaturized Monolithic Isolated Gate Driver

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 5, Page # 177–184, 2021; DOI: 10.25046/aj060520
Abstract:

Gate driver has been applied in many ways, exemplified by that, by using the DC-isolated and AC-pass characteristics of gate driver’s primary and secondary sides, the problem of floating endpoint in semiconductor power switch can be solved. However, the conventional design of isolated gate driver provides circuit voltage blocking by optically coupled components. Due to…

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(This article belongs to the SP11 (Special Issue on Innovation in Computing, Engineering Science & Technology 2021) & Section Electronic Engineering (EEE))
Open AccessArticle
10 Pages, 1,286 KB Download PDF

Wideband Active Switch for Electronic Warfare System Applications

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 1312–1321, 2020; DOI: 10.25046/aj0506156
Abstract:

Discrete component based ultra-wideband SPDT switch modelling, design and implementation challenges are reported in this article. The basic SPDT switch is planned to design using PIN diodes (bare die). Nonlinear parameters extraction steps of PIN diode from datasheets have been proposed in this article instead of using readymade nonlinear PIN diode models. Equalizers are designed…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Electronic Engineering (EEE))
Open AccessArticle
7 Pages, 1,125 KB Download PDF

Comparison of Gaze Points Among Viewing Conditions (Resolution, Display Size, Viewer Position) During Video Viewing

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 391–397, 2020; DOI: 10.25046/aj050646
Abstract:

Ultra-high resolution broadcasting such as 4K and 8K are becoming more popular for at-home use. The position of the viewer’s mean gaze point when they are looking at a larger display depends on the video clip, viewing position, and viewing distance. The International Telecommunication Union provided the document BT-2022; as the standard viewing conditions for…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Imaging Science & Photographic Technology (IPT))
Open AccessArticle
6 Pages, 932 KB Download PDF

Comparison of the RC-Triggered MOSFET-Based ESD Clamp Circuits for an Ultra-low Power Sensor System

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 718–723, 2020; DOI: 10.25046/aj050289
Abstract:

This paper uses the RC-triggered MOSFET-based electrostatic discharge (ESD) power clamp to conduct ESD from ESD events and not affect the ultra-low power sensor system. Then using the stacked device include stacked MOSFET or stacked BJT to reduce the leakage current which increases with temperature. Moreover, we compare gate-driven method and two-level–driven with both gate-driven…

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(This article belongs to Section Electronic Engineering (EEE))
Open AccessArticle
13 Pages, 1,150 KB Download PDF

Improvement of the Natural Self-Timed Circuit Tolerance to Short-Term Soft Errors

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 2, Page # 44–56, 2020; DOI: 10.25046/aj050206
Abstract:

The paper discusses the features of the implementation and functioning of digital self-timed circuits. They have a naturally high tolerance to short-term single soft errors caused by various factors, such as nuclear particles, radiation, and others. Combinational self-timed circuits using dual-rail coding of signals are naturally immune to 91% of typical soft errors classified in…

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(This article belongs to the SP8 (Special Issue on Multidisciplinary Sciences and Engineering 2019-20) & Section Electronic Engineering (EEE))
Open AccessArticle
11 Pages, 1,218 KB Download PDF

Multiple-Optimization based-design of RF Integrated Inductors

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 574–584, 2019; DOI: 10.25046/aj040468
Abstract:

In this paper, a multiple-objective Metaheuristics study is discussed. Initially, three mono-objective metaheuristics will be explored in order to design and optimize Radio-Frequency integrated inductors. These metaheuristics are: An evolutionary algorithm called The Differential Evolution (DE), An algorithm supported on Newton’s laws of gravity and motion called the Gravitational Search Algorithm (GSA) and, finally, A…

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(This article belongs to the SP7 (Special Issue on Advancement in Engineering and Computer Science 2019) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
11 Pages, 7,389 KB Download PDF

IGS: The Novel Fast IC Power Ground Network Optimization Flow Based on Improved Gauss-Seidel Method

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 711–721, 2017; DOI: 10.25046/aj020391
Abstract:

With silicon technology further scaling, the switching activities together with GHz operation frequency greatly affects the power integrity by generating large IR-drop noises. Excessive IR-drop causes functional failures such as timing failure, abnormal reset and SRAM flipping. The PGN needs to be optimized to reduce IR-drop. The traditional EDA optimization routine repeats the steps such…

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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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