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1932 articles for “differences” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Comparison of Different Modulation Techniques for High Bandwidth Visible Light Communication
Abstract: Visible light communication (VLC) has gained tremendous importance due to its potential for ease, effectiveness and long lifetime. Slow response of phosphorescent components limits the modulation bandwidth of the white LED to the lower MHz range. Different modulation techniques have been used for VLC to achieve extended bandwidth, high data rate and bit-error-ratio within the forward error correction limit. This paper represents comparison of three different modulations techniques used for …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 3, 2015 · pp. 32–38 Read article
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Performance Analysis of Mobility over the Integrated UMTS and WLAN Network in different Mobility Models with Vertical Handoff Prediction Algorithms using Streaming Service
Abstract: The seamless mobility is the final goal of any heterogeneous network. It can be achieved by selecting a suitable vertical handoff prediction algorithm, which can perform well in different mobility models. This paper presents comparative performance of mobility over the integrated universal mobile telecommunications system (UMTS) and wireless local area network (WLAN) in different mobility models (the file-based mobility model and the random waypoint mobility model) with vertical handoff prediction …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 1, 2016 · pp. 35–47 Read article
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Exploration of Different Microcantilever Geometries for Thermal Sensing using COMSOL and Development of ANN Model
Abstract: In this paper, modeling and simulation results of a thermal sensor which is capable of producing increase in length and deformation with increase in temperature is analyzed. Different geometries of a microcantilever beam are accounted. Further, the simulated results are used to develop an artificial neural network (ANN) model of slotted triangular type of microcantilever. A comparative study of COMSOL and ANN results of different types of cantilever models is …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 1, 2015 · pp. 5–10 Read article
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Interference Effect Analysis of Pilot Contaminated Massive MIMO Downlink with Different Pre-coders and Channel Estimation
Abstract: A new idea in cellular MU-MIMO is the use of large numbers of BS antennas to serve several single-antenna terminals simultaneously. In multi-cell environments, adjacent cells using the same spectrum cause a pilot contamination problem and degrade signal quality. This pilot overhead can be reduced by reusing pilot sequences in nearby cells; however, this potentially introduces interference in the channel estimation phase, the so-called "pilot contamination" effect. The achievable rate …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 1–9 Read article
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Numerical Study of Lid Driven Cavity at Different Reynolds Number
Abstract: The present work focuses on flow inside a lid-driven cavity; main aim is to obtain the velocity field in steady state condition using Navier-Stoke equations. Navier-stoke equation has been converted into algebraic form using finite difference method (FDM). Pertinent parameter of the present study is Reynolds number. Stream-vorticity approach has been adopted to solve the physical problem. Different Reynold numbers and grid sizes have been studied. Peaks of the velocity …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 42–46 Read article
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Experimental Investigation of PTFE Composite Material with Different Filler Materials
Abstract: Experimental investigation of PTFE (Polytetrafluroethylene) composites with different filler materials such as glass fiber, molybdenum disulphide, graphite carried is out in this study. This study exhibits tribological properties such as wear and coefficient of friction of PTEF composite material. Pin on disc tribometer is used to conduct the wear on PTFF polymer composite. Test is conducted on 10 mm diameter PTFE pin against EN31 counter face. Wear and friction experiment …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 34–42 Read article
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AOD Retrieval Over Different LULC Features Using AWiFS Data—A Case Study Over Dehradun
Abstract: In this study, an attempt is made to estimate the Aerosol Optical Depth (AOD) using a physically based radiative transfer model i.e. SMART (Simple Model for Atmospheric Radiative Transfer) over different LULC features. The forward procedure requires the data from Band B2: 0.52-0.59 μm of Resourcesat-2 Advanced Wide Field Sensor (AWiFS). While some of the atmospheric parameters, through transmittance, spherical albedo have been parameterized, few of them are utilized from …
Published in Journal of Remote Sensing & GIS · Vol. 8, Issue 2, 2017 · pp. 54–57 Read article
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Effect of Different Parameters on Energy Loss Coefficient of Square Edged Orifice Plate
Abstract: Orifice meter is a differential pressure type flow measuring device in which energy loss is a major problem. The energy loss coefficient is an important indicator of energy dissipation. In this paper, different parameters like contraction ratio, orifice plate thickness and Reynolds number were analyzed by numerical simulations using Ansys CFX 15.0 software for their effects on energy dissipation. Results of simulations revealed that, Reynolds number has negligible effect on …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 3, 2016 · pp. 38–42 Read article
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In vitro Antioxidant Activity and Phytochemical Analysis of Different Polar Solvent Extracts Obtained from Zanthoxylum rhetsa (Roxb) Bark
Abstract: This study was carried out to evaluate the phytochemical and antioxidant effectiveness of methanolic extract and different fractions (n-butanol, ethyl acetate, chloroform and n-hexane) of Z. rhetsa bark. Phytochemical activity of Zanthoxhylum rhetsa (Roxb) bark extract alkaloids, flavonoids, tannins, steroids, saponins and antraquinones was carried out. Antioxidant scavenging enzyme profile assays were done and profiles were developed for validation. The results indicated that bark extract and fractions of Z. rhetsa …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 5, Issue 3, 2015 · pp. 1–7 Read article
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Physiochemical Properties of Different Mango Fruit Varieties in Relation to Incidence of Mango Fruit Borer Autocharis albizonalis
Abstract: A study was conducted in several mango-producing areas in the districts of Malda, Murshidabad, Nadia and Midnapur in West Bengal during the month of April to June, 2013, to observe the infestation of fruit borer Autocharis albizonalis in eight folk varieties of mango (Mangifera indica L). Frequent observations on incidence of fruit borers showed that the larvae of fruit borer complete their larval stage within the fruit and damage the …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 5, Issue 3, 2015 · pp. 8–13 Read article
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Time History Analysis of Off Shore Structures with Different Bracings
Abstract: AbstractIn this paper time history analysis is performed for off shore steel structures for El-Centro data for 31sec.the effect of slope (different angle 0 degree,20 degree and 30 degree) is studied for various loading condition and the effect bracings (single bracings, knee bracings, cross bracings) for different loading are also studied. For FEA analysis SAP 2000 is used which observed very effective for analysis. Keywords: Offshore structure, SAP 2000, El-Centro, …
Published in Journal of Offshore Structure and Technology · Vol. 5, Issue 1, 2018 · pp. 1–5 Read article
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Buckling Strength of Metallic and Composite Plates with Small and Large Hole at Different Locations
Abstract: Most of the aircraft structures will experience a buckling phenomenon due to compressive loads. The cutouts like system small and large holes, lighting holes etc. are introduced in the aircraft structure at different locations for accessing aircraft inside and for passing electrical wires and ducts. The stress rises around these holes due to removing area in the panel and buckling phenomena will become further critical in aircraft structures. The cutouts …
Published in Journal of Aerospace Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 18–37 Read article
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Regression Analysis of the Effect of Different N Doses in Calendula officinalis L.
Abstract: AbstractThe present study was conducted to investigate the effects of different nitrogen doses (0, 3, 6, 9 ve 12 kg/da) on flower yield and some yield parameters of pot marigold (Calendula officinalis L.) plants in 2015 under ecological conditions of Samsun province of Turkey. The first flower harvest was performed on 10th of July and 24 harvests were performed throughout the experiments. The greatest fresh and dry flower yields were …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 6, Issue 1, 2017 · pp. 15–19 Read article
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Host Preference of Different Aphid Species on Major Winter Vegetables
Abstract: Aphids, which affect the wide range of host, are the serious emerging pest in the world. This experiment evaluates the actual host preference of three different aphid species i.e. Black Bean Aphid (Aphis fabae Linn.), Mustard Aphid (Lipaphis erysimi Kat.) and Cabbage Aphid (Brevicoryne brassicae Linn.) on three different winter vegetables i.e. Cauliflower, Faba Bean (legume) and Broadleaf Mustard. This research was conducted in polyhouse of Lamjung campus in two …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 7, Issue 2, 2018 · pp. 17–24 Read article
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Soil Carbon Stock Under Different Land Uses of Southern Agroclimatic Zone of Tamil Nadu, India
Abstract: AbstractSoil organic carbon (SOC) has long been identified as a factor that is important to soil fertility as well as to the environment because of huge carbon sequestration potential of soils. Estimating C pools under existing land uses provides baseline data to project C sequestration over time. The present study was undertaken to estimate the SOC stock in dominant soil series under different land uses of Southern Agroclimatic zone of …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 8, Issue 3, 2019 · pp. 1–7 Read article
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Comparative Study on Chemical Composition and Mineral Contents of Milk at Different stages of Lactation in Murrah Buffalo
Abstract: AbstractThe study was carried out to evaluate the chemical composition and mineral content of buffalo milk collected at different stages of lactation. The samples were collected from three different groups like early lactating animals, mid lactating animals and late lactating animals, these samples were analyzed for chemical composition and mineral contents. The obtained results showed that the main milk constituents were found to be at higher levels in the individual …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 9, Issue 1, 2020 · pp. 1–4 Read article
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Comparative anatomical study of the spikelet Pedicels of selected species of different Tribes belonging to the Poaceae family in Iraq
Abstract: The current study is a comparative anatomical study of species of the Poaceae family growing in different regions of Iraq, namely Ammochloa palaestina Boiss., Schismus barbatus Thell., Schismus arabica Nees., Arundo donax L., and Cymbopogon bakeri cont. The anatomical study included the anatomy of the spikelet. The results of the current study showed that the anatomical features are of great taxonomic importance and help in isolation and diagnosis, through the …
Published in Research & Reviews : Journal of Botany · Vol. 11, Issue 3, 2022 · pp. 38–46 Read article
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Evaluation of Early Performance Different Provenance of Moringa stenopetala (Baker f.) Tree Seedlings at the Nursery Level in Central Ethiopia
Abstract: Moringa stenopetala (Baker f.) Cufodontis is an important and valuable indigenous tree species in the lowland area of Ethiopia. And also the tree have economical, social, and in the livelihood of farmers and play key roles in ecosystem resilience under climate change scenarios. On the other hand, the variability with in plant genetics can be limiting factor to improve species’ appropriateness for a specific site. Therefore, this research aimed to …
Published in Research & Reviews : Journal of Botany · Vol. 11, Issue 3, 2022 · pp. 1–11 Read article
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Behavioural Assessment of Muscle Development by Downregulating Different Types of Integrins in Drosophila melanogaster
Abstract: Muscles play a major role in movement and diverse activities required for survival of an organism. In Drosophila, larval crawling and peristalsis are such kinds of rhythmic movements and are driven by muscle contractions. Larval crawling involves random walk on the solid surface whereas peristalsis involves one full body wall muscle contraction from anterior to posterior or in reverse direction in fluid. Accuracy in the development of muscles is an …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 8, Issue 2, 2018 · pp. 55–63 Read article
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Assessment of Surface Water Quality in Different Habitats of Nal Sarovar Bird Sanctuary Ramsar Site, Gujarat, India
Abstract: Nal Sarovar Bird Sanctuary is the only Ramsar Site in the State of Gujarat in India. It is the largest natural, freshwater inland wetland of Gujarat. This wetland supports high diversity and population of waterbirds and other aquatic organisms. The reason for such a high population of aquatic organisms attracted to this area is due to the diverse habitats and environmental conditions occurring in this area. GEER Foundation had conducted …
Published in Research & Reviews : Journal of Ecology · Vol. 7, Issue 3, 2018 · pp. 29–40 Read article