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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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Design and Analysis of Closed Flow System with Varying Various Parameters of Hydrodynamics for PEH
Abstract: In this work, a piezoelectric energy harvesting system is designed, which can vary different parameters for analyzing the output of PVDF (e.g. water flow rate, piezoelectric patch, piezoelectric circuit, pressure head and different configurations of installation of piezoelectric etc.). A prototype model is made of this system is made for experimental analysis. The analysis of the prototype is done by varying two parameters (i) Water flow rate (ii) Piezoelectric circuit. …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 30–37 Read article
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Performance evaluation of improved White-Fleshed Sweet Potatoes (Ipomoea batatas (L.) Lam.) Varieties for yield and yield-related traits in South Western Ethiopia.
Abstract: Sweet potato (Ipomoea batatas (L.) Lam.) is one of the most important root and tuber crop that rich invitamins, starch, protein, and the carbohydrate of sweet potato was easily soluble with in short period of time.To break the food security problem several sweet potato technologies have been introduced and evaluated indifferent areas of the country. Still, adaptation and performances of improved white-fleshed sweet potatovarieties were not yet assessed in the …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 12, Issue 2, 2023 · pp. 8–14 Read article
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Variation in Ozone at Night in Barrow, Alaska, during Different seasons, and its Relationship to Methane at Different Pressures
Abstract: The study is focus on the investigation of the night-time seasonal variability of ozone (O₃) at Barrow, Alaska, and also it examines its association with methane (CH₄) concentrations at different pressure levels along with solar flux variations on the basis of eighteen years (2003–2020) of observational data, including ground-based ozone measurements, satellite-derived methane data at 100, 200, 300, 400, and 500 hPa, and solar flux (F10.7) values. For finding the …
Published in International Journal of Atmosphere · Vol. 3, Issue 1, 2026 · pp. 44–53 Read article
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Reactive Power Optimization using Particle Swarm Optimization with Time Varying-Acceleration Coefficient
Abstract: This paper presents an approach for the solution of reactive power optimization problem. In deregulated power system operations, reactive power optimization helps the system operator to maintain system security with the economy. The application of the time-varying acceleration constant-particle swarm optimization (TVAC-PSO) method for the solution of this problem is emphasized. The real power losses of the system are minimized satisfying power balance, generator reactive power operating limit and voltage …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 2, 2018 · pp. 1–10 Read article
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Combination Therapy with Propranolol and Cephalanoplos Segetum Against First Variceal Hemorrhage in Patients with Cirrhosis
Abstract: Background: Primary prophylaxis aims to prevent variceal hemorrhage in patients with esophageal varices who do not have a history of hemorrhage. The use of nonselective beta blockers is the first option for primary prophylaxis to prevent variceal bleeding in patients with the cirrhosis. Application of non-selective beta blocker has various kinds of merits, but patient's endurance to beta blocker becomes a problem and it does not prevent primary variceal bleeding …
Published in Research and Reviews: A Journal of Medicine · Vol. 12, Issue 1, 2022 · pp. 17–22 Read article
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Thermal Effect on Frequencies of Non-homogeneous Trapezoidal Plate with Linearly Varying Thickness in One Direction and Linearly Varying Density in other Direction
Abstract: In this study thermal effect on vibrations of non homogeneous trapezoidal plate has been investigated whose thickness varies linearly in one direction and density varies linearly in other direction. Governing differential equation has been derived using classical plate theory. Rayleigh-Ritz method is applied to obtain the frequencies for the first two modes of vibration. Clamped-Simply supported-Clamped-Simply supported boundary condition is considered with two term deflection function. Effect of various plate …
Published in Journal of Experimental & Applied Mechanics · Vol. 3, Issue 2-3, 2012 · pp. 25–37 Read article
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Effect of Nitrogen Fertilizer Levels on Yield Components and Grain Yield of Malt Barley (Hordeum vulgare L.) Varieties at Kulumsa, Central Ethiopia
Abstract: AbstractDetermination of optimum rates of nitrogen and appropriate varieties are important agronomic decisions for malt barley production. Thus, a field experiment was conducted at Kulumsa Agricultural Research Center during 2011 main season with the objectives of determining the effect of different nitrogen fertilizer levels on yield components and grain yield of widely grown malt barley varieties. Factorial combinations of four released malt barley varieties namely, ‘Beka’, ‘Holker’, ‘Miscal-21’ and ‘EH1293’ …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 4, Issue 3, 2015 · pp. 11–21 Read article
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Performance Evaluation of Desi and Kabuli Type Chickpea Varieties at Hulbareg District Southern Ethiopia
Abstract: Chickpea (Cicer arietinum L.) is the third most important pulse crop and one of the major highland pulse crop widely grown in Ethiopia. They are two types of chickpea, called desi and kabuli. This study was conducted on Hulbareg district of Southern Ethiopia at 2020 cropping season. The field experiment was arranged a randomized complete block design with three replications to evaluate and select desi and kabuli type chickpea varieties …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 11, Issue 2, 2022 · pp. 22–28 Read article
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Performance Evaluation and Stability Analysis of Medium Seeded Common Bean (Phaseolus Vulgaris L.) Varieties in Siltie And Gurage Districts Of Southern Ethiopia
Abstract: Field experiment was conducted with eight medium seeded for two consecutive years (2020 - 2021) comprising three environments (Mareko, Sankura and Abeshge). The objective of this study was to identify and select high yielding and best performing medium seeded common bean varieties for wide and specific adaptability. Eight medium seeded common bean varieties were used. Randomized Complete Block Design with three replications was used. Data was analyzed using R software …
Published in Research & Reviews : Journal of Botany · Vol. 11, Issue 2, 2022 · pp. 35–40 Read article
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Adaptation and evaluation of Improved Cassava (Manihot Esculentacrantz) Varieties In Southwest Ethiopia
Abstract: Cassava, scientifically known as Manihot esculenta Crantz, plays a crucial role as a primary food source for over 800 million individuals in numerous tropical countries. It serves as a vital dietary staple crop in these regions.. Nutritionally, cassava has a great potential to provide economical sources of dietary energy in the form of carbohydrates and cassava has huge a potential crop to address general food insecurity due to recurring droughts …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 12, Issue 1, 2023 · pp. 14–18 Read article
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Variation in Persistent Organochlorine Pesticide Residues among Various Tissues of House Sparrow, Passer domesticus, from Tamil Nadu, India, during 2001–2006
Abstract: ABSTRACTThe present study focuses on persistent organochlorine pesticides (OCPs) on various tissues of house sparrow, Passer domesticus, from Tamil Nadu, India, between 2001 and 2006. The major compounds quantified in eggs, liver, brain and muscle tissues are hexachlorocyclohexane (HCH), 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p’-DDE), dichloro-diphenyl-trichloroethane (ΣDDT), dieldrin, and heptachlor epoxide. The mean concentrations of ΣPCBs, ΣHCH and ΣDDT in eggs are 0.94 ± 0.66 μg/g and 0.35 ± 0.26 μg/g respectively on wet …
Published in Research & Reviews : Journal of Ecology · Vol. 1, Issue 3, 2012 · pp. 8–16 Read article
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Adaptation of Finger Millet (Eleusine coracana) Varieties in Southern Ethiopia
Abstract: Finger millet (Eleusine coracana) is one of the cereal food and feed crops grown in Ethiopia. The crop is considered a low input crop. Unavailability of improved varieties was realized as one of the major production constraints at all potential areas in southern Ethiopia. The present study was conducted with an objective to identify the adaptive, preferred and better yielding finger millet varieties for further demonstration and pre-scale up. The …
Published in Research & Reviews : Journal of Botany · Vol. 14, Issue 2, 2025 · pp. 1–5 Read article
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Screening of Mustard Varieties and Lines against Clubroot and Alternaria Leaf Spot Diseases
Abstract: The experiment was conducted to find out the resistant varieties/lines against clubroot and Alternaria leaf spot diseases of mustard at the Plant Pathology Division, RARS Jamalpur, Bangladesh during the Rabi season of 2024-2025 with sixty-two (62) varieties and lines of Mustard collected from Oilseed Research Centre (ORC) and Plant Genetic Resources Centre (PGRC), Joydebpur, Gazipur-1701, Bangladesh. To screen for clubroot and Alternaria leaf spot diseases and to evaluate yield and …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 14, Issue 3, 2025 · pp. 97–106 Read article
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Assessing the Variation in Cutback Asphalt Requirement for Various Geotechnical Properties of Asphalt Stabilized Soil
Abstract: The subgrade layer must be strong to resist shear failure, tensile stresses and have adequate stiffness to avoid and resist excessive pavement deformation. Available fill materials do not always meet these requirements and may require improvement of their engineering properties, soil stabilization with liquid asphalt may be an alternative to improve the stability, adhesion and waterproofing properties which are desired for embankment construction purpose. The soil in this investigation represents …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 3, 2015 · pp. 17–29 Read article
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Effects of Blended Fertilizer Rates on Growth, Yield and Quality of Malt Barley (Hordeum distichum L.) Varieties at Mekdela District, South Wollo, Ethiopia
Abstract: Malt Barley is main cash-crop in Ethiopia, whose yield was constrained by lack of improved varieties, and declining soil fertility due to nutrient depletion. A field experiment was conducted to study the effects of Blended fertilizer rates on growth, yield and quality of malt barley varieties at Mekdela District, South Wollo, Ethiopia. The experiment was laid out in Randomized Complete Block Design with factorial arrangement with three replication and consisted …
Published in Research & Reviews : Journal of Botany · Vol. 10, Issue 1, 2021 · pp. 23–35 Read article
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Real Time Characterization of BA.2.86 and Its Variant (JN.1) in Senegal Using Midnight Protocol
Abstract: During the week ending August 13th, 2023, the most prevalent variant of interest (VOI), uploaded to GISAID, was the BA.2.86 variant. This SARS-CoV-2 Omicron lineage was described as the first phylogenetically distinct from the currently circulating SARS-CoV-2 Omicron XBB lineages, including EG.5.1 and HK.3. Compared to the XBB and BA.2 lineages, the BA.2.86 possesses more than 30 mutations in the Spike (S) protein, suggesting a significant potential for immune evasion. …
Published in International Journal of Vaccines · Vol. 1, Issue 2, 2024 · pp. 16–21 Read article
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Embarking on the Frontier: A Comprehensive Study of various traditional Technologies and creating awareness about latest technologies for Breast Cancer Screening amongst various Hospitals in India
Abstract: This extensive study explores the landscape of conventional technologies used in Indian hospitals for Breast Cancer Screening. The study comprehensively examines commonly used techniques, including Mammography, Ultrasound and Clinical Breast Examination in order to provide a holistic understanding of existing screening methods. The study also investigates how well-informed medical facilities are on the newest technology in breast cancer screening, including AI based methods.The acceptance rates and challenges involved with introducing …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 1, 2024 · pp. 80–86 Read article
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Response of Mung Bean (Vigna Radiata (L.) R. Wilczek) Varieties to Bradyrhizobium Inoculation at Gimbo District, Southwestern Ethiopia
Abstract: Globally, mung beans are grown in tropical and subtropical climates as an essential pulse crop. However, lack of appropriate nutrient management combined with the best responsive varieties is a major problem in enhancing productivity of mung bean. Thus, this field experiment was conducted in Gimbo district, Southwest Ethiopia, during the 2024–2025 rain-fed cropping season to evaluate the response of mung bean varieties to Bradyrhizobium inoculation. The treatments comprised factorial combinations …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 15, Issue 1, 2026 · pp. 28–37 Read article
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Visit to Visit Fasting Plasma Glucose Variability and Associated Factors in Diabetic Patients
Abstract: Wide glycemic variability has been proposed as one of the factors associated with poor glycemic control and development of diabetes complications. The aim of this study was to evaluate the extent of visit to visit fasting plasma variability and associated factors in patients with diabetes. A retrospective cross-sectional study was conducted on 280 diabetic patients attending outpatient diabetic clinic of Ayder Referral Hospital between December, 2015, and April, 2016. Relevant …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 5, Issue 2, 2016 · pp. 14–24 Read article
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Assessment of Enhanced Tef Varieties in the Basketo Zone, Southern Ethiopia
Abstract: Tef is one of the most vital staple crops in Ethiopia, providing significant food security and economic value to the country. In this study, six distinct Tef varieties, including a local farmer cultivar, were evaluated under field conditions using a randomized complete block design (RCBD) in the Basketo Zone of Southern Ethiopia. The objective was to assess the performance of these varieties in terms of adaptation and grain yield potential, …
Published in Journal of Catalyst & Catalysis · Vol. 12, Issue 1, 2025 · pp. 27–32 Read article