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Open AccessArticle
11 Pages, 1,780 KB Download PDF

Spatial Sampling Requirements for Received Signal Level Measurements in Cellular Networks of Suburban Area

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 277–287, 2017; DOI: 10.25046/aj020134
Abstract:

A process for the determination of a required spatial resolution in the collection of the Received Signal Level (RSL) is discussed. This method considers RSL measurements as a three dimensional surface that is sampled through the data collection process. In addition, it is difficult to collect RSL measurements for an entire coverage area because of…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Telecommunications (TEL))
Open AccessArticle
8 Pages, 345 KB Download PDF

Power-Energy Simulation for Multi-Core Processors in Bench-marking

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 255–262, 2017; DOI: 10.25046/aj020131
Abstract:

At Microarchitectural level, multi-core processor, as a complex System on Chip, has sophisticated on-chip components including cores, shared caches, interconnects and system controllers such as memory and ethernet controllers. At technological level, architects should consider the device types forecast in the International Technology Roadmap for Semiconductors (ITRS). Energy simulation enables architects to study two important…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Hardware & Architecture in Computer Science (CHA))
Open AccessArticle
5 Pages, 843 KB Download PDF

MIMO Performance and Decoupling Network: Analysis of Uniform Rectangular array Using Correlated-Based Stochastic Models

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 192–196, 2017; DOI: 10.25046/aj020123
Abstract:

We explore the dependency of MIMO performance on azimuthal spread (AS) and elevation spread (ES) using correlated-based stochastic models (CBSMs). We represent the transmitter as uniform rectangular array (URA), and derive an analytical function for spatial correlation, in terms of maximum power when phase gradient of the incident wave follows a Student’s t-distribution. We model…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Telecommunications (TEL))
Open AccessArticle
7 Pages, 628 KB Download PDF

A Survey of Text Mining in Social Media: Facebook and Twitter Perspectives

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 127–133, 2017; DOI: 10.25046/aj020115
Abstract:

Text mining has become one of the trendy fields that has been incorporated in several research fields such as computational linguistics, Information Retrieval (IR) and data mining. Natural Language Processing (NLP) techniques were used to extract knowledge from the textual text that is written by human beings. Text mining reads an unstructured form of data…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 1,825 KB Download PDF

Frame Filtering and Skipping for Point Cloud Data Video Transmission

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 76–83, 2017; DOI: 10.25046/aj020109
Abstract:

Sensors for collecting 3D spatial data from the real world are becoming more important. They are a prime research area topic and have applications in consumer markets, such as medical, entertainment, and robotics. However, a primary concern with collecting this data is the vast amount of information being generated, and thus, needing to be processed…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Imaging Science & Photographic Technology (IPT))
Open AccessArticle
9 Pages, 1,697 KB Download PDF

A Web-Based Decision Support System for Evaluating Soil Suitability for Cassava Cultivation

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 42–50, 2017; DOI: 10.25046/aj020105
Abstract:

Precision agriculture in recent times had assumed a different dimension in order to improve on the poor standard of agriculture. Similarly, the upsurge in technological advancement, most especially in the aspect of machine learning and artificial intelligence, is a promising trend towards a positive solution to this problem. Therefore, this research work presents a decision…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Metallurgy & Metallurgical Engineering (MME))
Open AccessArticle
7 Pages, 643 KB Download PDF

The Class Imbalance Problem in the Machine Learning Based Detection of Vandalism in Wikipedia across Languages

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 1, Page # 16–22, 2016; DOI: 10.25046/aj020103
Abstract:

This paper analyses the impact of current trend in applying machine learning in detection of vandalism, with the specific aim of analyzing the impact of the class imbalance in Wikipedia articles. The class imbalance problem has the effect that almost all the examples are labelled as one class (legitimate editing); while far fewer examples are…

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(This article belongs to the SP2 (Special Issue on Computer Systems, Information Technology, Electrical and Electronics Engineering 2017) & Section Artificial Intelligence in Computer Science (CAI))
Open AccessArticle
8 Pages, 1,198 KB Download PDF

Stand-alone Inverter: Reviews, Models and Tests the exist system in Term of the Power Quality, and Suggestions to Design it

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 5, Page # 34–41, 2016; DOI: 10.25046/aj010507
Abstract:

Developments in power electronics have enabled the widespread application of Pulse Width Modulation (PWM) inverters, notably for obtaining electricity from renewable systems. This paper critical review the previous studies in designing stand-alone inverter and modelling the inverter with two control loops to improve and provide a high-quality power of a stand-alone inverter. Multi-loop control techniques…

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(This article belongs to the Special issue on Recent Advances in Electrical and Electronics Engineering 2016 & Section Electrical Engineering (ELE))
Open AccessArticle
6 Pages, 1,232 KB Download PDF

ARM based Bidirectional Visitor Counter and Automatic Room Light Controller using PIR sensors

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 5, Page # 10–15, 2016; DOI: 10.25046/aj010503
Abstract:

With the advancement of technology intelligent devices are fast approaching the realm of necessity from the status of luxury. With limited energy resources, it is the need of time to revolutionize the traditional methods of counting visitors inside hotels, recreational places, meeting rooms and cinemas to control the electrical appliances. Moreover, the improved living standards…

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(This article belongs to the Special issue on Recent Advances in Electrical and Electronics Engineering 2016 & Section Electronic Engineering (EEE))
Open AccessArticle
4 Pages, 817 KB Download PDF

Compressive Strength of Cement Mortar blended with Coconut Fibers and Human Hair

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 4, Page # 1–4, 2016; DOI: 10.25046/aj010401
Abstract:

Mortar is used all over the world for construction purpose. It consists of cement paste and fine aggregates and admixtures if required are also incorporated to modify some of its properties. In this study coconut fibers and human hair were used as an additive materials in the mortar and its effects on compressive strength of…

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(This article belongs to Section Construction & Building Technology (CBT))
Open AccessArticle
6 Pages, 924 KB Download PDF

An Efficient Approach of Load Shifting by Using SCADA

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 3, Page # 1–6, 2016; DOI: 10.25046/aj010301
Abstract:

The consumption of electric power has increased significantly in the past few years, and its demand is still increasing every day. In this regard, its proper distribution is a significant challenge. This paper includes a method not only to improve the existing power distribution by using SCADA but also to reduce the human errors from…

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(This article belongs to Section Electrical Engineering (ELE))
Open AccessArticle
5 Pages, 1,484 KB Download PDF

Solar Irradiance & On Grid Solar Power Systems with Net Metering in Pakistan

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 2, Page # 1–5, 2016; DOI: 10.25046/aj010201
Abstract:

This paper presents a case study of solar irradiance and scope of on-grid solar power systems with net-metering in Pakistan. Detailed analysis of solar irradiance in Pakistan is being carried out by developing the dedicated solar excel sheets. The need of on grid solar power systems for the present energy crisis in developing countries like…

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(This article belongs to Section Energy & Fuels (ENF))
Open AccessArticle
4 Pages, 552 KB Download PDF

Effect of Foliar Application of Zinc on Growth and Yield of Guava (Psidium Guajava L.)

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 1, Page # 19–22, 2016; DOI: 10.25046/aj010103
Abstract:

In depth study focusing to ascertain the effect of different rates of Zinc (Zn) fertilization in improving the quality and yield of Guava fruit was carried out at Gharo, Sindh – Pakistan during year 2014-15. The outcome of the research revealed that there was no significant effect on the yield as well as quality, without…

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(This article belongs to Section Horticulture (HOR))
Open AccessArticle
8 Pages, 878 KB Download PDF

Numerical Analysis of Drawdown in an Unconfined Aquifer due to Pumping Well by SIGMA/W and SEEP/W Simulations

Advances in Science, Technology and Engineering Systems Journal, Volume 1, Issue 1, Page # 11–18, 2016; DOI: 10.25046/aj010102
Abstract:

In the present study a computer model of a pumping well has been developed and calibrated by using two slave programs of Geo-Slope software, i.e. (SIGMA/W and SEEP/W). The model has been used to study the behaviour of watertable and drawdown in an aquifer during pumping. SIGMA/W program was used to compute initial pore-pressure within…

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(This article belongs to Section Water Resources (WRS))
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