Search
521 articles for “In channel”
-
Impact of Fading in On Demand Routing Protocol of MANET
Abstract: AbstractFading is a major impairment while transmitting a signal in wireless communication channel. It is caused by multipath propagation. That is signals from different paths can constructively or destructively interfere with each other. Thus, it becomes very necessary to reduce this effect, to transmit the signal effectively to the receiver. Many routing protocols are proposed based on which neglect the effect of fading and path loss. Main objective of this …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 4, Issue 2, 2017 · pp. 6–10 Read article
-
A Robust Automatic Algorithm for Extraction of Blood Vasculatures from Retinal Images
Abstract: AbstractIn this proposed algorithm, an efficient method for extraction and segmentation of blood vasculatures from the retinal eye images is proposed. For finding the features and abnormalities like Fovea, macula, Red lesions and exudates, blood vasculature extraction is one of the most important steps. The proposed algorithm uses tactical combination of Green, L and Y channel of Retinal image, which gives a more accurate and efficient result than the single …
Published in Recent Trends in Programming languages · Vol. 6, Issue 2, 2019 · pp. 1–7 Read article
-
XML Query Optimization for Improvement of Data Warehouses Information Processing
Abstract: XML data warehouses give decision-support systems a chance to use complicated data by giving them a place to start. But native-XML database management systems are slow right now, so it is important to look into ways to make them faster. This study presents two strategies to think about. To start, we suggest using a link index that was made with the fact that XML warehouses have a lot of dimensions …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 10, Issue 1, 2023 · pp. 40–53 Read article
-
Encryption-Decryption RGB Color Image Using Matrix Multiplication
Abstract: The most commonly used type of data on the Internet are RGB color images. To encrypt the color image the separation is done on the red and blue channels (R, G, B). Each channel is encrypted using a method called random matrix coding. After encryption a new image code is created. The functionality of this application compares with the performance of other techniques and demonstrates the benefits of using this …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 8, Issue 3, 2021 · pp. 30–37 Read article
-
Optimization of Energy Efficiency in Multihop Cooperative Communication Networks
Abstract: Next-generation wireless networks use point-to- multipoint paradigms of classical cellular networks. They will be based on large interactions, where the involved nodes cooperate with one another in order to improve the performance of their own communication and that of the global network. Cooperative communications based on relaying nodes have a promising approach to increase spectral and power efficiency, network coverage, and to reduce outage probability. The concept of Cooperative Communication …
Published in Journal Of Network security · Vol. 4, Issue 2, 2016 · pp. 48–52 Read article
-
Examining the Effects of MIST in RSA and CRT-RSA to Resist Power Analysis Attacks
Abstract: The need of security has turned into a vital area of research in domain of computer science. The evolution of side channel attacks has challenged the vulnerability of almost all the symmetric and asymmetric cryptographic techniques available worldwide. This has raised the urgency in designing mitigation techniques against such volatile attacks. Power analysis attacks, which is the most popular side channel attacks has proved to be a challenge for most …
Published in Journal Of Network security · Vol. 4, Issue 3, 2016 · pp. 11–22 Read article
-
Laminar Propagation of Lean-Premixed Flames in Meso-scale Tubes
Abstract: A meso-scale channel was earlier developed [1] for the propagation of laminar lean premixed flames. This paper, therefore, reports the experimental variations of flame speed with inner meso-scale tube diameters (di), equivalence ratio (φ), and mixture flow rate (Q) with methane and propane fuels using the meso-scale channel developed earlier. Based on the flame front history, flame speed (SL) and propagation speed (Ud) were computed at temperature (T) greater than …
Published in Journal of Thermal Engineering and Applications · Vol. 1, Issue 2, 2014 · pp. 17–28 Read article
-
Analysis of the Fraction of Mass Flow Rate on the Performance of Double Flow Solar Air Heater
Abstract: This paper presents a mathematical model of a double flow solar air heater, in which air is flowing simultaneously over and under the absorbing plate. Based on the energy balance equations, the effect of fraction of mass flow rate in the upper or lower flow channel has been investigated analytically. The results show that there is air temperature rise, heat gain and efficiency has the maximum value when the optimal …
Published in Journal of Thermal Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 18–26 Read article
-
An Augmented Design Approach of PID Controller using FPGA
Abstract: Proportional Integral Derivative (PID) controller is the most preferable controller in industries that does not require precise analytical model of the system to be controlled. Implementation of PID controllers has gone through several stages of evolution from the early mechanical and pneumatic designs to the microprocessor based systems. Recently “Field Programmable Gate Array” has become an alternative solution for the realization of Digital PID controllers. To overcome the hardware complexity …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 4, Issue 1, 2016 · pp. 1–6 Read article
-
Maximization of Spectrum Efficiency Using PSO, HPSO-GA Algorithms for Cognitive Radio
Abstract: A cognitive radio (CR) is an intelligent radio that can be programmed and configured dynamically. Its transceiver is designed to use the best wireless channels in its vicinity. Such a radio automatically detects available channels in wireless spectrum by the process of spectrum sensing, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location. This paper discusses the …
Published in Recent Trends in Sensor Research & Technology · Vol. 3, Issue 2, 2016 · pp. 19–28 Read article
-
Texture Segmentation Using Multichannel Filtering And Kohonen’s Self Organizing Map
Abstract: The texture is very important cue in region based segmentation of images. Texture features play a very important role in computer vision and pattern recognition. Texture segmentation can be broken down into two areas, feature extraction and clustering. In this paper, we implement two stage of feature extraction technique using multichannel filter and Self Organizing Map (SOM). Firstly, we go through channel filters, also known as 2-D Gabor functions. The …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 3, 2012 · pp. 17–30 Read article
-
Knowledge Transfer among Paddy Farmers in Selangor, Malaysia
Abstract: The Malaysian Agricultural Research and Development Institute (MARDI) plays a vital role in ensuring that the agricultural technology developed is relevant to the needs of the industry and is linked with the target group. Similarly, the Department of Agriculture (DOA) provides extension services in the form of advisory, consultative, and technical support services to entrepreneurs, private companies and farmers’ groups. In spite of MARDI’s and DOA’s function in assisting farmers, …
Published in Current Trends in Information Technology · Vol. 4, Issue 3, 2014 · pp. 29–39 Read article
-
Designing of QMF Bank
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Quadrature mirror filter (QMF) banks have been of great interest during the past decade. These filters find application where a discrete signal is to split into a number of consecutive bands in the frequency domain, so that sub-band signal can be processed in an independent manner and sufficient compression may be achieved. Typical processing includes under sampling the sub-band signals, encoding …
Published in Journal of Instrumentation Technology & Innovations · Vol. 1, Issue 2-3, 2011 · pp. 1–10 Read article
-
Thermal-hydraulic Safety Assessment of a Miniature Neutron Source Reactor
Abstract: The main objective of this study is to assess the thermal-hydraulic safety capability of the PLTEMP/ANL v 4.0 in analyzing Ghana Research Reactor-1 (GHARR-1), with vertical fuel rods cooled by natural convection, operating at a nominal power (30 kW) with sufficient safety margins. The neutronic analysis of the core was performed using MCNP X code, where parameters of interest were the power distributions and the power peaking factors. The thermal-hydraulic …
Published in Journal of Nuclear Engineering & Technology · Vol. 3, Issue 3, 2013 · pp. 18–44 Read article
-
Estimation of Shallow Water Effects Using Empirical and Numerical Methods for Inland Vessels
Abstract: Due to the increased demand for transportation of cargoes through waterways, there is a need for more and efficient inland vessels. The Inland Waterways Authority of India (IWAI) has planned initiatives to augment the inland waterways sector through strategic development, complementing one activity with others to ensure efficient and effective movement of goods within the country for in-bound and out-bound destinations. A key element of this plan will be the …
Published in Journal of Offshore Structure and Technology · Vol. 6, Issue 2, 2019 · pp. 1–8 Read article
-
A Brief Introduction on the Electrokinetic Mixing and Separation in Microfluidic Systems
Abstract: Electrokinetics encompasses the analysis of fluid or particle motion in the electrical field; includes electroosmosis, electrophoresis, dielectrophoresis, electro-wetting, etc. Electrokinetic applications in the production of microfluidic systems have become quite attractive over the last decade. Electro-kinetic systems usually do not need any additional mechanical moving parts and may be made compact by removing the power source with a small battery. Electro-kinetic based microfluidic systems may also serve as a feasible …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 24–34 Read article
-
Electrical Performance of the Silicon Nanowire Double Gate FET
Abstract: Silicon nanowire (SiNW) metal-oxide-semiconductor field-effect transistor (MOSFET) is a promising candidate of future CMOS device for further scaling. As the cross-sectional dimensions of SiNW channel is very small, cross-sectional shapes should affect electrical characteristics of SiNW FETs. In this work, effects of cross-sectional shapes of gate stack formation on (i) properties of double gate of SiNW FET; (ii) carrier transport properties including on-current, effective carrier mobility and inversion charge density; …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 22, Issue 3, 2020 · pp. 5–11 Read article
-
Estimation of Various Geomorphometric Aspects of Kandra River Basin of Panhala Tehsil, Kolhapur District (M.S.)
Abstract: The term morphometry senses the measurement and analysis of form and its properties. Incontext of geomorphology, which is science of land forms, it is concerned with the variousgeometrical aspects of the landforms. It is inevitable in the study of fluvial geomorphology.Morphometric analysis particularly deals with quantitative measurements of different aspectslike linear, aerial and relief, for instance stream order, stream length, drainage density,drainage frequency, bifurcation ratio, constant channel maintenance etc. Kandra …
Published in Journal of Remote Sensing & GIS · Vol. 11, Issue 1, 2020 · pp. 36–41 Read article
-
Scientrometric Patriot of Steven Vogel, a Biophysicist
Abstract: Steven Vogel is one of the pioneers of biomechanics research in the world. This study presents bibliometric analysis of 131 publications (119 articles and 12 books) published during 1962–2016 with 39 co-authors. He has to his credit, 108 single-authored and 23 multi-authored papers. His highest productivity is 5 papers per year during 2002–2006 when his age was between 64 and 68 years and second highest productivity is 4 papers per …
Published in Research & Reviews : Journal of Statistics · Vol. 12, Issue 1, 2023 · pp. 28–38 Read article
-
In Silico Screening and Evaluation of Some Metabolites from Momordica charantia in the Treatment of Peptic Ulcers
Abstract: Peptic ulcers are also called as or duodenal ulcers or gastric ulcers that are open sores generally develop in the lining of the stomach due to food and climatic factors. H. pylori infections are potentially the most dangerous and are linked to several diseases like diabetes, cancer, cardiovascular diseases, etc. In the present study, in silico screening and evaluation of some metabolites from Momordica charantia like Momorcharin, Momordicin, Metformin, Pioglitazone, …
Published in Research and Reviews : Journal of Computational Biology · Vol. 12, Issue 4, 2023 · pp. 5–13 Read article