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1935 articles for “VAR” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Prevention of Varicose Veins
Abstract: Varicose veins are abnormal, dilated blood vessels caused by weakening in the vessel wall. Such conditions that increase pressure on the leg veins such as overweight, lack of exercises, hormonal fluctuations during pregnancy and menopause, smoking; constipation or people who have prolonged standing or sedentary position or repeated heavy lifting make veins of legs very weak and develop into varicose veins. Researchers report that a mild care of varicose veins …
Published in Journal of Nursing Science & Practice · Vol. 4, Issue 1, 2014 · pp. 23–29 Read article
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Range of Anatomical Variations in Brachial Plexus Formation and Branching Pattern in Adult Cadavers
Abstract: Background and Aims: Nerve plexuses are important for surgeons, anatomists, anesthesiologists and critical care physicians. Variations in the formation and branching pattern of the brachial plexus are common and have important clinical significance. The aim of our recent study was to evaluate the anatomical variations in brachial plexus and also find any new anatomical variations in brachial plexus roots, trunks, divisions and cords. There are many lesions in brachial plexus …
Published in Research and Reviews : Journal of Surgery · Vol. 9, Issue 3, 2020 · pp. 1–7 Read article
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A Survey on Various Security Issues in Delay Tolerant Networks
Abstract: Security is one of the major threats in Delay tolerant network (DTN). The DTN communication takes place when if it is in the range of communication. Hence due to this shortcoming there exists possibility of dropping the delivered messages by the selfish or malicious nodes, which result to attacks. Various security attacks such as; black hole, wormhole, grey hole etc. effect the network connectivity as well as increase the delay. …
Published in Journal of Advances in Shell Programming · Vol. 2, Issue 2, 2015 · pp. 12–18 Read article
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Analysis of Public Sentiment Variations on Twitter Data Set
Abstract: AbstractLarge numbers of users share their opinions on social networking sites, making it a valuable platform for tracking and analyzing public sentiment. Twitter has become a valuable platform for public to share their opinion. It can be used for sentiment analysis. Such tracking and analysis can provide critical information for decision making in various domains. It has attracted attention in both academia and industry. Sentiment analysis is nothing but finding …
Published in Recent Trends in Parallel Computing · Vol. 4, Issue 2, 2017 · pp. 32–57 Read article
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Thermal Gradient Effect on Frequencies of a Rectangular Plate of Varying Thickness in Both Directions
Abstract: An analysis and numerical results are presented for frequencies of rectangular plates of non-linear thickness variation in x-direction and linearly in y-direction with linearly temperature distribution on the basis of classical plate theory. An approximate but quiet convenient frequency equation is derived by using Rayleigh-Ritz technique with a two term deflection function. Effect of the thermal gradient together with taper constants on the natural frequencies of vibration a clamped rectangular …
Published in Journal of Experimental & Applied Mechanics · Vol. 4, Issue 1, 2013 · pp. 15–20 Read article
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Seasonal Variation and Regional Abundance of Wetland Avian Fauna of Urinji Kulam Pond in Thiruthangal, Viruthunagar District
Abstract: Wetlands are plays a vital role in the ecosystem. It provides good shelter for many animals such as, birds, mammals, fishes, insects, etc. It is also maintaining the biodiversity of flora and fauna. Birds are the most important indicators of the ecosystem. Hence, the present study has been carried out to assess the wetland birds in Thiruthangal from July 2012 to June 2013. During the study period 32 species of …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 4, Issue 2, 2014 · pp. 21–24 Read article
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Stabilizing Varying Eccentricity Problem in Hydrodynamic Bearings Using Elegant Control Strategies
Abstract: The implementation of elegant control strategies to stabilize varying eccentricity problem in hydrodynamic bearing has been proposed in this paper. This implementation deals or gives an advantage of good stability of hydrodynamic bearing, even at critical or threshold speeds where an unstable whirl occurs leading to instability assisted greatly by this varying eccentricity factor. Hence in this paper, we take eccentricity as a function of variation and try to stabilize …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 14–20 Read article
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Analysis of anomalous Ionospheric Total Electron Content variation for earthquakes in South East Asian region with International GNSS Service Network
Abstract: A study has been undertaken to find ionospheric total electron content anomaly around various earthquake days occurring in a period from January, 2016, to March, 2017, in the South East Asian region. Large Magnitude shallow earthquakes are considered only. For the study Vertical Total Electron Content (hereafter abbreviated as VTEC) data for various dual frequency GPS receivers maintained by the IGS network was collected with the help of IONOLAB-TEC software …
Published in Journal of Remote Sensing & GIS · Vol. 9, Issue 3, 2018 · pp. 37–45 Read article
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Modeling and Control of Various Drive Train Models of DFIG Wind Turbine
Abstract: The wind energy system (WES) has been gaining popularity in recent years for the reason of its resourcefulness and intrinsic reproducibility. Power quality and transient stability are major issues of WES under the influence of fluctuating wind speeds and network outages. The study focuses primarily on the various drive train models for the DFIG wind turbine, as well as torsional oscillations produced fluctuations in wind speed. The pitch-damping control is …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–10 Read article
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Seasonal Variation in the Phytochemical Constituents of Two Ajuga Species
Abstract: Medicinal plants are the natural repositories of secondary metabolites that can be used for therapeutic purposes. The content of these secondary metabolites or phytochemical constituents varies at different growing seasons of the plants. The phytochemical constituents of Ajuga bracteosa and Ajuga parviflora varied significantly in their proportion at different stages of development and among different populations. The content of phenols and flavonoids was found to be maximum at the flowering …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 6, Issue 3, 2017 · pp. 25–31 Read article
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Chemical Content Variations of Hypericum perforatum Growing in Turkey during its Ontogenetic and Diurnal Cycles
Abstract: AbstractThe biological activities of Hypericum perforatum have been mainly attributed to its hypericin and hyperforin contents. The present study was conducted to determine ontogenetic, morphogenetic and diurnal variation of hypericin, pseudohypericin and hyperforin contents in H. perforatum growing in Turkey. Plants were harvested at floral budding, full flowering, fresh fruiting and mature fruiting stages three times a day. When harvested they were dissected into stem, leaf and reproductive tissues, which …
Published in Research & Reviews : Journal of Botany · Vol. 5, Issue 1, 2016 · pp. 3–12 Read article
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Present Status of Hydrographical Variables of the Amirthi River in Amirthi Forest, Vellore
Abstract: ABSTRACTThe present study was carried out to determine the water quality in terms of physicochemical characteristics variables in the running water ecosystem for a period of three months from January to March 2007. The post-monsoon variation of hydrography variables and dissolved nutrients such as PO4-P, NO3-N, NO2-N, K, Mg and Ca were high at all the stations. In the running water, the Chloride (24 mgl−1 to 1733 mgl−1), Fluoride (0.2 …
Published in Research & Reviews : Journal of Ecology · Vol. 1, Issue 3, 2012 · pp. 1–7 Read article
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Variation of Meteorological Parameters and their Influence on Tropospheric Surface Radio Refractivity in Minna and Yola, Nigeria
Abstract: The variation of meteorological parameters and their influence on tropospheric surface radio refractivity in Minna (middle belt) and Yola (north east), Nigeria was investigated. The results show that variation of each meteorological parameter (temperature, humidity and pressure) contributed to the diurnal and seasonal variations of tropospheric surface radio refractivity at Minna and Yola. The wet term of refractivity (Nwet) and dry term of refractivity (Ndry), contributed 24% and 76%, respectively …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 9, Issue 2, 2020 · pp. 5–20 Read article
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Study of Price Variation of Anti-infective Eye Preparations
Abstract: To analyze the percentage cost variations among different brands of commonly prescribed ophthalmic drugs. The cost of different brands of commonly used ophthalmic drugs was sorted out by referring the latest Current Index of Medical Specialities, Indian Drug Review and Retail drug store. The cost of five dosage forms in INR of each brand, cost ratio and percentage cost variation ware calculated. Our study findings showed a very high fluctuation …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 5, Issue 2, 2018 · pp. 10–12 Read article
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Enhancements in Titanium Matrix Composites: A Multifaceted Exploration of Various Structural Ceramics Reinforcement
Abstract: This research study delves into the comprehensive exploration of Titanium Matrix Composites (TMCs) reinforced with Silicon Carbide (SiC), Alumina (Al2O3), and Boron Nitride (BN). The investigation is structured into three key phases, each addressing essential aspects of TMCs: Phase 1 involves materials and manufacturing, where TMC coupons were fabricated through the stir casting technique with varying compositions of aluminum and silicon carbide. Phase 2 focuses on characterization and defect detection, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 83–94 Read article
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Genetic Variability and Statistical Methods: Key Insights for Computational Genetics Research
Abstract: Genetic variability, defined as the differences in DNA sequences among individuals, serves as the foundation of evolutionary biology and plays a pivotal role in species’ adaptability, resilience, and overall survival. Advances in genomic technologies, particularly high-throughput sequencing, have enabled unprecedented exploration of genetic diversity, fostering the growth of computational genetics. This interdisciplinary field combines statistical methods and computational tools to analyze genetic data, identify patterns, and link phenotypes to genotypes. …
Published in Research and Reviews : Journal of Computational Biology · Vol. 13, Issue 3, 2024 · pp. 19–23 Read article
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Seasonal Variation of VLF Radio wave Signal Strength at 19.8 KHz Received at Khatav India (16o46ʹN, 75o53ʹE)
Abstract: This research is a detailed study of the seasonal behavior of the VLF field strength of the waves transmitted by VLF station NWC Australia (19.8 kHz). This research was carried out by using the VLF Field Strength Monitoring System located at Khatav, India (16°46ʹN, 75°53ʹE) during the period of August 2009 to July 2010. This study explores how the ionosphere and VLF radio waves react to the solar radiation. In …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 14, Issue 3, 2025 · pp. 1–9 Read article
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Effect of Process Variables on the Mechanical Characteristics of form Fabricated Materials
Abstract: Additive manufacturing prominent rapidly advancing technologies for producing 3D-printed products. Initially developed by stratasys, FDM technology emerged during the 1980s. This additive manufacturing technique builds products by extruding semi-molten material through a nozzle onto a platform. PLA and ABS are among numerous thermoplastics that are commonly used as filaments in this procedure. Purpose of research was to observe the effect of variables such as infill percentage, bed temperature, printing speed …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 3, Issue 2, 2025 · pp. 32–39 Read article
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Micro Level Mobility Intervention in Urban Spatial Structure in Reducing GHG Emissions: A Case of The City of Lucknow, Prayagraj and Varanasi
Abstract: In contemporary times, the Greenhouse Effect has emerged as a paramount concern in urban areas. With India undergoing rapid urbanization, cities are witnessing soaring temperatures. Greenhouse gas emissions are one of the main causes of the Greenhouse Effect. India stands among the highest emitters of GHGs, primarily stemming from the energy sector, particularly in electricity generation. The period from 2005 to 2018 saw a noteworthy surge in India's emissions, largely …
Published in Trends in Transport Engineering and Applications · Vol. 12, Issue 3, 2025 · pp. 25–33 Read article
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Machine Learning Optimization for VARTM Carbon Polymer Laminates
Abstract: Vacuum-assisted resin transfer moulding (VARTM) is a key low-cost, out-of-autoclave process for manufacturing large-scale carbon-fibre reinforced polymer (CFRP) laminates crucial to aerospace wings, wind-turbine blades, marine hulls, and automotive structures. Unpredictable resin flow often leads to voids, dry spots, and race-tracking defects, resulting in 27.9% scrap rates and lengthy, costly trial-and-error design cycles. Although surrogate models provide rapid impregnation predictions for simple flat-plate geometries, vision-based monitoring is limited to idealized …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 229–245 Read article