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960 articles for “Bala”
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Mathematical Modelling of an Unbalanced Rotor Subjected to Transverse Vibrations
Abstract: The static and dynamic balancing of a rotor plays a very important role in deciding the life-span of any turbo-machinery which is running at a very high speed. The major problems which face during the running of turbo machineries are unbalancing of the rotor. Rotor unbalance may be due to wrong selection of the manufacturing process, method of manufacturing, wear and tear of rotating component, thermal deformations, deposition of material …
Published in Trends in Machine design · Vol. 7, Issue 1, 2020 · pp. 9–16 Read article
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Development of Environmentally Sustainable Epoxy Composites with Sunflower Seed Husk Fillers and Study on Thermal and Moisture Properties
Abstract: This study examines the development and characterization of epoxy composites reinforced with sunflower seed husk (SSH) fillers fabricated using the compression molding technique. SSH fillers were categorized into two distinct particle size distributions, namely, 4–53 µm and 79–463 µm, and were incorporated into the epoxy matrix at varying volume fractions ranging from 5% to 20%. The water absorption behavior of the composites was assessed according to ASTM standards, and thermogravimetric …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 28–37 Read article
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Design and Construction of a Thermosiphonic Solar Photovoltaic – Thermal Water Heating System for Sustainable Development in Temperate Regions of Africa
Abstract: AbstractThe atmospheric temperature of some temperate regions of Africa is mostly about 30–45°C, it incites 30–80°C heat over the panel since black body of the PV panel observes more heat, and this temperature affects the electrical efficiency of the panel. The importance of energy availability in the economic growth, social and political development for every nation cannot be overemphasized. Affordable and reliable energy availability is the precondition for sustainable development. …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 1–8 Read article
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Design and Construction of Solar Still-Solar Water Heater Hybrid for Small Scale Application
Abstract: AbstractSolar still-solar water heater hybrid for small scale application has been designed and constructed and tested in this study. The construction began with designing and developing isolated units of single-slope solar still, solar water heater and water storage tank separately. These were then coupled together to form the hybrid system. To test its efficacy, the hybrid was subjected to perform distillation alongside a conventional type single-slope solar still of the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 11–16 Read article
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Production of Jatropha curcas L. Seed Oil DMC-Js-BioDs by Optimized Dimethyl Carbonate Using Potassium Hydroxide as Catalyst
Abstract: AbstractThe use of Jatropha curcus L. seed oil as the feedstock for biodiesel (DMC-Js-BioDs) production has observed growing interest because it is a non-edible oil. In this study, the production of DMC-Js-BioDs from J. curcas seed oil with dimethyl carbonate (DMC) as the solvent was performed. The reaction was conducted in the presence of KOH as a catalyst to investigate the optimum conditions and study the effects of the variables …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 56–63 Read article
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A Review of Building-Integrated Photovoltaic/Thermal (BIPV/T) Systems
Abstract: AbstractFor the last years, Building Integrated Photovoltaic (BIPV) was the only gate to use PV solar energy into housing area. However, there is another type of building integration technology which is building integrated photovoltaic-thermal (BIPV/T) that is gaining popularity at a very high rate. Therefore, this paper presents a review of the BIPV/T existing technologies, presenting a general overview of the system, including historical projects developed from the 80’s till …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 10, Issue 1, 2019 · pp. 9–27 Read article
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Onsite Assessment of Wind Energy Potential and Performance of Installed 500W Horizontal Axis Wind
Abstract: AbstractWind energy is one of the fastest growing technologies in energy generation industries nowadays. Because, the cost of any wind energy project depends sensitively on the nature of the wind resources available, therefore, estimation of wind characteristics is considered as the first essential step to evaluate a wind energy project based on information about all aspects of the implementation and operation of the project. A good performance evaluation of the …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 7, Issue 3, 2017 · pp. 10–16 Read article
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Soldiers Security System using Arduino
Abstract: AbstractIn today’s era enemy’s warfare is imp factor in our nation’s security, and soldiers play a vital role in it. Soldiers is one of the most imp aspects of any country, they have a responsibility of whole nation so the security of soldiers is considered as an most imp role. It’s our duty to equip soldiers with better advanced technology. There are many concerns regarding the safety of soldier and …
Published in Journal of Microcontroller Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 35–40 Read article
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Reduce Timing in Physical Design
Abstract: AbstractThe physical design flow consists of producing a production worthily from a gate level net list subject set of constraints. Here, focuses on the reduce the timing from floor plan to routing stage. Because performance of a chip depend on the timing. Mainly in routing stage manually adding the buffers and upsizing the drive strength in violating the time paths. It also surveys some physical design flows. The outlines a …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 3, 2019 · pp. 28–36 Read article
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Extended Switched Inductor Quasi Z Source Inverter for Photovoltaic Applications
Abstract: A novel extended switched inductor quasi Z source inverter is proposed in this paper for better voltage boosting with improved power factor and reliability. The operation of the proposed inverter is described with its equivalent circuit explaining operating states such as shoot through and non-shoot through states and outlining the relationship between output voltage, total harmonic distortion and power factor. Simple boost scheme is used for switching actions of the …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 14–23 Read article
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Power Losses Reduced by using Particle Swarm Optimization (PSO)
Abstract: Due to the increasing price of electricity, it is very critical to accomplish an optimal decrease in active (real) losses throughout power transmission. The lowering of these failures is essential so because values of leakage losses in coastal lines are quite strong and result in significant transverse active losses. Load unbalancing is the biggest problem of the electricity network and SVC is stronger able to correct the malfunction of the …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 1, 2021 · pp. 6–19 Read article
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Damage Assessment and Strengthening of Transmission Line Tower at Component Level
Abstract: The damage assessment and strengthening of transmission tower is an important factor to be considered for life enhancement. The transmission towerdeteriorate due to corrosion and ageing. In this paper, analytical and experimental investigation is carried out at component level on cantilever beam made of square hollow and angle section. The damage is inflicted by reducing the stiffness of the beam. The damage is assessed based on frequency response measurements. The …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 9–15 Read article
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A Vision to Reduce Orthodontic Treatment Duration
Abstract: There is an increased tendency for researchers to specialise in accelerating methods for tooth movement; thanks to the greater demand of adults for a shorter treatment duration. Long treatment time has many disadvantages such as higher predisposition to caries, gingival recession and root resorption; this increases the demand to increase tooth movement with the least possible disadvantages. Many techniques have been introduced for accelerating the tooth movement. Thus, accelerating orthodontic …
Published in Research and Reviews: A Journal of Dentistry · Vol. 11, Issue 1, 2020 · pp. 29–34 Read article
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Self-esteem among Nursing Students
Abstract: Self-esteem is a personal opinion of oneself and is shaped by individuals’ relationships with others, experiences, and accomplishments in life. A healthy self-esteem is necessary for mental well-being and a positive self-concept. Total of 118 nursing students from three different colleges at Bangalore were surveyed with socio-demographic data, Rosenberg self-esteem scale and students stress scale. The study shows that more than half of the subjects i.e., 65.3 percent had normal …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 1, 2018 · pp. 13–15 Read article
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Processing of Sight Word Reading in Adult Deaf Individuals
Abstract: To read individual words accurately and quickly is the skilled reader ability. All words that readers can retrieve from their memory quickly are known as sight words including high frequency words. Sight word reading is an automatic process which is not influenced by intention or choice. English alphabetic system is very variable hence open to decoding errors. This makes reading words from memory by sight essential and significant in English. …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 2, 2018 · pp. 57–61 Read article
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A Study to Assess the Effectiveness of Intravenous Iron Sucrose Injection in Pregnancy with Severe Anaemia and Formulation of Educational Tool for Nurses
Abstract: A study to assess the effectiveness of IV iron sucrose injection in pregnancy with severe anaemia and formulation of educational tool for nurses in a selected hospital of New Delhi was conducted by Madhu Bala under the expert guidance, support and encouragement of Dr. Manju Chhugani Principal/ Working Dean, Ms. Bindu Shaiju Assistant Professor, Faculty of Nursing, Jamia Hamdard, New Delhi and Dr. Monika Gupta Assistant Professor HAHC Hospital, Jamia …
Published in Research and Reviews : A Journal of Immunology · Vol. 4, Issue 2, 2014 · pp. 20–26 Read article
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Attitude of Parents Towards their Children with Mentally Retardation—A Review Article
Abstract: Mental retardation has been a social stigma and it is indicative of the illiteracy and lack of scientific knowledge among the individuals in the society. A great emotional flexibility and emotional stability is required for raising a child with mental retardation. According to the World Health Organization’s (WHO) report, around 3% of the general population suffers with mental retardation. Existing studies reveal that very often the parents as well as …
Published in Research and Reviews: A Journal of Medicine · Vol. 9, Issue 2, 2019 · pp. 10–14 Read article
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Inhibitory Action of Sodium Tellurite on Uropathogenic Bacteria
Abstract: The objective of the present study was to predict the toxic properties of sodium tellurite against selected uropathogenic bacteria. A group of nine clinical isolates of different uropathogenic bacteria isolated from urine in suspected cases of urinary tracts infection Enterococcus faecalis, Staphylococcus aureus, Acinetobacter baumannii, Citrobacter freundii, Enterobacter aerogenes, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis and Pseudomonas aeruginosa were collected and utilized for screening tests. The spectrum of toxic properties …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 2, 2018 · pp. 6–10 Read article
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FTIR Spectrum Analysis and Antibacterial Activity of Tribulus terrestris Leaves Extract
Abstract: The present study deals with the analysis of Fourier-transform infrared spectroscopy (FTIR) spectrum. Tribulus terrestris leaf extract has the carboxylic acid, alkane, aldehyde, unsaturated ketone, phenol, anhydride and halogen compound. These compounds are effective against bacteria such as Staphylococcus aureus, Bacillus subtilis and Escherichia coli. The results from the present screening revealed that the strongest antibacterial activity was exhibited by the ethanol extract, and the least activity in the chloroform …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 25–30 Read article
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Prevalence of Associated Problems among the Mentally Challenged Children in Bangalore
Abstract: Background: Mentally challenged children experience a lot of associated disturbances along with problems of mental retardation. The primary aim of the present study was to identify the associated problems that occur along with the mental retardation among the mentally challenged children in Bangalore, Karnataka, India. Method: Descriptive research design was adopted for the present study. Complete enumeration sampling method was used to select 134 caregivers of mentally challenged children studying …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 8, Issue 3, 2018 · pp. 19–23 Read article