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459 articles for “24”
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A SIMULATION STUDY OF THE EFFICIENCY OF HIGH VOLTAGE α-Si STAND-ALONE PV INSTALLATIONS
Abstract: The paper analyzes different configurations, direct-PV, PV-battery, either with PWM or MPPregulator, and hybrid-PV, of stand-alone PV installation operating with high voltage α-Si panels thatsupplies energy to a DC-AC external circuit. Global efficiency is determined as a function of voltageconversion ratio and individual element efficiency. The paper concludes that direct-PV is the mostefficient mode with average performance ratio (PR) of 92.2% followed by PV-battery with MPPT,68.3% of efficiency, and PWM …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 2, 2021 · pp. 1–11 Read article
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Corrosion Characterization of Silicon Carbide and Fly Ash Particulates Dispersion Strengthened Aluminium 5083 Composites
Abstract: Corrosion behavior of aluminium metal matrix composites is a major study aimed at evaluating the potential of using the materials for aerospace components. Aluminium 5083 is a specific class of alloy which is known for its corrosion resistance in extreme environments and is used in aerospace components. However, the studies on effect of reinforcements such as silicon carbide and fly ash on corrosion behavior of aluminium 5083 alloy has not …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 2, 2017 · pp. 9–21 Read article
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Solar Electric Powered Hybrid Vehicle
Abstract: The renewable energy is vital for today’s world as the nonrenewable sources that we are using are going to get exhausted in near future. The solar vehicle is a step in saving these nonrenewable sources of energy. The basic principle of Solar/Electric Powered Hybrid Vehicle (SEPHV) is to use energy that is stored in a battery during and after charging it from a solar panel. The charged batteries are used …
Published in Journal of Electronic Design Technology · Vol. 6, Issue 3, 2015 · pp. 9–16 Read article
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The Coordinated Approach for Reactive Power Management of Deregulated Electricity Market
Abstract: RPM is an important ancillary service, especially in deregulated energy environment which contains two major areas: reactive power purchase and reactive power dispatch. Various technical and economic issues need to be considered in this market. This work shows RPD as the main optimization problem. As optimized electric power dispatch is important problem in electrical power systems. Cost infimumization, voltage stability improvement, losses minimization, and terminal voltage deviation minimization are important …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 2, 2019 · pp. 5–14 Read article
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SYNTHESIS OF LOCAL OIL-BASED MUD FOR NIGER DELTA WELLS USING ELAEIS GUINEENSIS
Abstract: Abstract Edible oil is produced from palm kernel (Elaeis Guineensis), a widespread tropical fruit that has a specific gravity of approximately 0.9°C, a flash point of 242°C, a flash point of 251°C, and a pour point of 22°C. This experiment was conducted by replacing liquid paraffin oil, a known component of conventional oil-based mud, with palm kernel oil (PKO) in the synthesis of a new oil-based mud from local materials. …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–12 Read article
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Design and Analysis of MAC Unit Using Single Precision Floating Point Vedic Multiplier
Abstract: Multiplication and accumulation are the basic operations which are important in several microprocessors and digital signal processing (DSP) applications to execute dedicated algorithms. Developing high speed MAC is essential for real time DSP application. The MAC unit determines the speed of the overall system and it lies in the critical path. As the demand for high speed design is continuously increasing, the studies related to the field of multipliers and …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 3, 2018 · pp. 28–35 Read article
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Water Quality Changes in Balu River during Non-Monsoon and Monsoon Period
Abstract: Dhaka, the capital of Bangladesh, is surrounded by numerous rivers and canals, such as Turag, Buriganga, Dhaleswari, Balu, and Shitalakshya. Among those, Balu river is one of the important water resources to supply drinking water for Dhaka metropolitan area (DMA), which is the 11thlargest city in the world. Nearly 14 million people reside in DMA. Major industrial zones in and around Dhaka are disposing untreated water directly in Balu river …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 38–49 Read article
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The application of the Jellyfish search algorithm for solving Modified economic load dispatch under the consideration of prohibited operation zones, varied load demand, and renewable energy sources
Abstract: In this research, an expanded version of the original economic load dispatch problem (EELD) is concerned to optimize operation of power plants in power systems. While solving the problem, the power supplied from solar energy is considered in addition to the conventional thermal power plants. The main objective function of the research is to minimize the entire electricity generating cost (EEGC) of all thermal power plants in the systems. On …
Published in Recent Trends in Electronics Communication Systems · Vol. 9, Issue 3, 2022 · pp. 12–18 Read article
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ATC Calculation in OPF Environment Using Hybrid Grey Wolf Optimizer and Particle Swarm Optimization
Abstract: Evolution of hybrid optimization provides new research direction in the real world problem solving by using more than one optimization techniques for obtaining speedy convergence and/or global optimal solution or solution near the global optimal. In this paper, a novel hybrid particle swarm optimization (PSO) and grey wolf optimizer (GWO) technique is used to calculate the available transfer capability in an optimal power flow environment. The proposed method has been …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 84–93 Read article
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Design of Ultra Wideband Square Aperture Shaped Microstrip (ASM) Antenna
Abstract: AbstractA compact coplanar waveguide-fed (CPW) microstrip antenna for ultra-wideband (UWB) wireless communication is presented. The antenna comprises a square aperture (24 mm × 24 mm) etched on the ground-plane of a printed circuit board and a modified rectangular shaped stub, also total size of the antenna is 30 mm × 30 mm. The lower edge of the band is attained by properly decoupling the resonant frequencies due to proper selection …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 15–19 Read article
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A Study to Assess the Effectiveness of Planned Teaching Programme Regarding Road Traffic Accident and Its Prevention among the Adolescents (11th to 12th Class) in Selected School of Bhilai (C.G.)
Abstract: Road traffic injuries are the leading cause of death among children and young adults aged 5–29 years. The main objective of this study was to assess the pre-test post-test knowledge regarding road traffic accident and its prevention among adolescents. Quasi-experimental, one group pre-test post-test research design was taken on. A total of 60 samples were selected using non-probability purposive sampling technique. The tool used for the study comprised of two …
Published in Journal of Nursing Science & Practice · Vol. 11, Issue 1, 2021 · pp. 59–65 Read article
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Effect of Lifestyle Pattern on Sleeping Quality among the Students of Selected University
Abstract: A descriptive research design was undertaken to assess the effect of lifestyle pattern on sleeping quality of college students of S’O’A University. A total of 50 students were selected by nonprobability convenience sampling technique and data were collected from the students by using structured interview schedule and questionnaire. Demographic characteristics revealed that 66% of the students were in the age group of 18–20 years, 28% were between 21–23 years, 6% …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 3, 2018 · pp. 17–22 Read article
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Predictors of Low Birth Weight in Tigrai Regional State, Northern Ethiopia: Hospital Based Case Control Study
Abstract: Background: Low birth weight is a serious public health crisis to neonatal survival, about 20.6 million such infants born each year and the developing world inhabits 96.5% of them and little is documented about the predictors of low birth weight in Ethiopia. Therefore, this study is intended to identify the determinants of low birth weight in governmental hospitals of Tigrai national state, Ethiopia.Method: A case-control study was carried out at …
Published in Research and Reviews: A Journal of Health Professions · Vol. 7, Issue 1, 2017 · pp. 23–32 Read article
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Overview of Nutritional Underweight Problems in Children Aged 6–59 Months in North Moyo District, Sumbawa Regency, West Nusa Tenggara in 2019
Abstract: Objective: Malnutrition is a public health problem that occurs in the Sumbawa Regency, especially in North Moyo district, West Nusa Tenggara. The condition is usually found in children under-five years of age because it affects cognitive and physical development and contributes to morbidity and mortality. The purpose of this study was to illustrate the problem of underweight nutrition in children aged 6–59 months in North Moyo district, Sumbawa Regency, West …
Published in Research and Reviews: A Journal of Health Professions · Vol. 10, Issue 1, 2020 · pp. 14–18 Read article
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Evaluate the effectiveness of nurse led interventions on knowledge and practice regarding nursing care of chest tube drainage among nursing personnel’s working at medical and surgical wards of PGIMS Rohtak Haryana
Abstract: Introduction: The present study was conducted to determine the nursing personnel’s level of knowledge and practice the care of chest tube drainage to improve the quality of nursing care. A chest tube insertion is surgical procedure in which a hollow, flexible drainage tube is inserted through the side of the chest into the plural space in order to drain the plural cavity air, blood, pus or lymph. The water seal …
Published in Research and Reviews: A Journal of Health Professions · Vol. 13, Issue 3, 2023 · pp. 84–90 Read article
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Is Beating Heart Coronary Artery Bypass Graft Surgery Associated with Lesser Oxidative Stress and Inflammatory Response?
Abstract: Cardiac operations using cardiopulmonary bypass have been associated with systemic inflammatory response, increased levels of circulating adhesion molecules, and oxidative stress. This study aims to assess various responses in patients undergoing coronary artery bypass grafting (CABG) with or without Cardiopulmonary bypass (CPB) with respect to time after surgery. Sixty consecutive patients undergoing CABG either by on-pump or off-pump technique were studied. Serum levels of tumor necrosis factor- (TNF- -6 (IL-6), …
Published in Research and Reviews : A Journal of Immunology · Vol. 1, Issue 1-3, 2011 · pp. 16–26 Read article
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Prevalence and Risk Factors in a Sample Population of Hemiplegia—An Observational Study
Abstract: Falij is the paralysis of longitudinal half of the body starting either below the neck, sparing head and face or covering the entire longitudinal half of the body from head to toe. It draws analogy with hemiplegia occurring due to stroke. Unani system of medicine asserts to possess treatment for motor recovery in Falije Nisfi. Almost all ancient Unani physicians have advocated Tanqia and Ta’deel as treatment of Falij caused …
Published in Research and Reviews: A Journal of Medicine · Vol. 9, Issue 2, 2019 · pp. 25–29 Read article
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CARDIOVASCULAR EVALUATION OF NEONATES WITH PERINATAL ASPHYXIA WITH SPECIAL REFERENCE TO CARDIAC TROPONIN T LEVELS ,CREATINE KINASE MB AND 2D ECHO.
Abstract: Methods:70 term babies with perinatal asphyxia were selected as cases.They were evaluatedwithin 24 hours of birth using echocardiography and cardiac enzymes i.e. Troponin T andCK-MB levels .Results:Incidence of cardiac dysfunction in neonates was reported and correlated withcardiac enzymes.Majority had moderate HIE (51.4%), a total of 23 (32.9%) had mild HIEand 11 (15.7%) had severe HIE.Echo findings were abnormal in 45 / 70 (64.3%) of neonateswith Tricuspid regurgitation being most common …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 11, Issue 3, 2022 · pp. 29–42 Read article
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Partial Characterization of Crude Lipase from Mutant Soil Fungal Isolate
Abstract: Lipases are cluster of enzymes which cleaves oils and fats. Characterization properties oflipases have been studied in the present investigation because they play an imperative role inseveral industrial applications. The present lipase obtained from soil fungal strain named asEMS5%-60min exhibited optimum activity at pH 7.0 (24.90±0.25 IU/ml/min) and 37ºC (20.28±0.51IU/ml/min). In pH stability profile, the enzyme was found stable in alkaline pH range withhighest activity (13.08±0.07 IU/ml/min) at pH 9.0. …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 79–89 Read article
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Estimation of Effective Storage Time in Post-thawing and Washing Cryopreserved Red Blood Cells using Mechanical Properties of Membrane by Dielectrophoresis
Abstract: Aim: The aim of the study is to estimate most effective storage time after thawing and washing in cryopreserved red blood cells(RBCs), using the mechanical properties of red blood cells(RBCs) membrane by dielectrophoresis. Materials and Methods: The mechanical properties of the RBCs membrane(elasticity, electric capacity and interactive energy) were calculated by mathematical model made from dielectrophoresis on RBCs. In addition, estimating the most effective storage time after thawing and washing …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 10, Issue 1, 2021 · pp. 31–39 Read article