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394 articles for “Change Rate”
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Design and Development of an Electromagnetic Propulsion Train
Abstract: The recent advancement of new transportation techniques led to the search for methods of propulsion that were superior to classical mechanical systems. Among these new moments, electromagnetic propulsion (EMP) has attracted attention because this technique allows for motion generation via electromagnetic force without using conventional wheel-based friction processing. The paper describes the conceptual design, principle of working and performance evaluation of a prototype model train to be propelled electromagnetically.The system, …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 19–24 Read article
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Development of an Energy Free Refrigerator Using LPG as Refrigerant
Abstract: Supply of constant power is as yet not accessible in a few zones of the nation and the residential refrigerator devouring greater power. In this paper, a minimal effort cooler is created utilizing LPG as refrigerant. LPG is put away in barrel at high weight. As this pressurized LPG is gone through the slim container of little inner distance across, the weight of LPG is diminished because of development and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 22–26 Read article
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Potential Impacts of Climate Change on Insect Behavior
Abstract: Climate change is a major source of concern across the globe. It is being fueled by an increase in global mean temperature, an increase in atmospheric CO2 concentration, and an irregular shift in yearly precipitation. This will have a significant impact on the distribution, abundance, ecology, and behaviour of all species, and specifically insects, which are poikilothermic in nature. Insects will go through multiple life cycles as a result of …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 11, Issue 3, 2021 · pp. 29–35 Read article
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Comparative Analysis of a Lie Detector using Support Vector Machine, Naive Bayes, and Random Forest Algorithm with Speech to Text Conversion
Abstract: Lie detection, additionally known as deception detection, uses questioning techniques to determine truth and falsehood in response. Physiological responses like vital sign, blood pressure, heartbeat, and respiratory rate are used to discriminate between truth and lie. Once we lie, our blood pressure goes up, our heart beats quicker, we have a tendency to breathe faster (and our breathing slows once the lie has been told), and changes occur in our …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 9, Issue 1, 2021 · pp. 13–18 Read article
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Performance Analysis of Graphene Reinforced Sug-ar-Alcohol Based PCM for Thermal Energy Storage System
Abstract: The thermal-conductivity of the Phase Change Materials (PCMs) of thermal heat storage systems is improved by distributing nano-particles in the basic PCM for a faster rate of heat transfer. During the charging and discharging procedures, the heat transfer properties of the newly created Sugar-Alcohol based PCM dispersed with 1.0 wt% graphene nanoparticles in a shell and helical tube storage tank were examined. The helical tube configuration caused the melting and …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 133–147 Read article
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Climate Change and Soil Degradation: Its Economic Impact on Cassava Production in Ondo State: A Case Study of Akoko North West Local Government
Abstract: AbstractThis paper, presents an empirical analysis of climate change and soil degradation, its economic impact on cassava product in Ondo State with special reference to Akoko North West local government area. Data used for this study is from primary source. The data consists of 300 respondents selected from ten towns/villages in the study area using purposive sampling technique; only 280 cases were useful. Structured interview guide were used to collect …
Published in Research & Reviews : Journal of Ecology · Vol. 4, Issue 3, 2015 · pp. 1–5 Read article
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Hydrolysis-Driven Optimization of Hydroxypropyl Maize Starch for Improved Micro-Pellet Binding and Quick Solubility of Spirulina-Based Micro-Pellets
Abstract: Acid hydrolysis is a well-established approach for modifying the physicochemical properties of polysaccharides & macromolecules including hydroxypropyl Maize starch (HPMS). In this study, the effect of varying concentrations of hydrochloric acid on the partial hydrolytic degradation of HPMS (Lycoat RS-780) was investigated at 85°C for 4 h, yielding polymers of different molecular weights. The Acid-mediated degradation effects on polymer characteristics were systematically assessed using capillary viscometry and gel permeation chromatography …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 17, Issue 2, 2026 · pp. 41–61 Read article
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Effects of a Single Dose Inhalation of Ipratropium Bromide, Salbutamol, Salmeterol, Beclomethasone, Budesonide in Stable Chronic Bronchitis: Comparative Study
Abstract: Chronic bronchitis usually treated with long acting bronchodilators and inhaled corticosteroids as monotherapy or in combination. The aim of this study is to assess the efficacy of single dose of β2-agonist (short and long acting), muscarinic antagonist and inhaled corticosteroids on the pulmonary function test in clinically stable chronic bronchitis patients. A total number of 93 (61 males and 32 females) patients who fulfilled the criteria of uncomplicated chronic bronchitis …
Published in Research and Reviews: A Journal of Medicine · Vol. 4, Issue 3, 2014 · pp. 12–17 Read article
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A Review on Solar Air Heater
Abstract: Solar energy has grown in importance in recent years as a result of the negative environmental effects of greenhouse gas emissions from fossil fuel combustion, as well as the rising cost of electricity generation as traditional energy sources become scarce. Solar air heaters are the most straightforward and cost-effective technique to harness solar energy. It converts solar energy into thermal energy for a variety of heating applications, including timber seasoning, …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 9, Issue 1, 2022 · pp. 29–32 Read article
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Changing Dimensions in Development of Open Access Repositories: An Analytical Study of OpenDOAR
Abstract: AbstractPaper evaluates the growth and development of open access repositories of the world covered under the umbrella of OpenDOAR. Data gathered from the OpenDOAR website and growth rate has been calculated by the given formula. Several parameters have been identified for the analysis of open access repositories. Scope is limited to the 2729 repositories listed in the OpenDOAR as on given date. Paper concludes with maximum, operational, open access institutional …
Published in Journal of Advancements in Library Sciences · Vol. 3, Issue 1, 2016 · pp. 42–49 Read article
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Corrosion and Corrosion Protection of Cast iron due to Bio-organism
Abstract: Cast iron is a high tensile strength metal. It is generally used for making tools, pipe fitting, electrical fitting equipment and rail track. It interacts with corrosive substances to develop electrochemical cell on their interface. Corrosive substances are acids, bases, salts, bio-wastes, particulates and pollutants. These substances produce hostile medium for materials. These harmful wastes discharge by industries, households, agricultural, urbanization, development of infrastructure, construction works, thermal power stations, hydropower, …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 16, Issue 2, 2025 · pp. 105–114 Read article
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Multi Objective Optimization in Turning Parameters of Al 6463 using Principal Component Analysis
Abstract: AbstractIn multi objective optimization, weight criterion of each objective is important for producing better and accurate solutions. Now a day, due to the growing requirement of the higher precision apparatus for its useful aspect, machining time (MT) and material removal rate (MRR) of a machined part plays a significant role in the modern manufacturing process. This study focuses on optimizing CNC turning parameters on Al 6463 based on principal component …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 6–15 Read article
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Optimization of turning process parameters for Titanium grade 5 using Taguchi method
Abstract: In the contemporary world, the standard of the surface end is most significant demand for several turned work piece due to that maker's square measure seeking to stay competitive in the market. Taguchi parameter style is a powerful tool and efficient methodology for optimizing quality and performance output of the producing method. This paper investigates the parameters poignant the surface roughness manufacture in turning method for material Titanium Grade 5. …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 17–22 Read article
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New Integral Processes Enrichment of Moroccan Oil Shale using Mineral and Hydrometallurgical Methods
Abstract: In this work, we increase the calorific value of Moroccan oil shale, which is the main element in the combustion of fossil fuels. In particular, we consider the shale of Timahdit, enriching it by hydrometallurgical and mineral processing methods in order to use it to generate thermal and electrical energy. Although different studies have been conducted for the development of Moroccan oil shale, but they have not dealt with the …
Published in Journal of Petroleum Engineering & Technology · Vol. 1, Issue 1-3, 2011 · pp. 28–36 Read article
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Acute Toxicity and Behavioral Alterations of Oligochaete Worm, Branchiura sowerbyi Exposed to Diazinon
Abstract: In the present study, acute toxicity of the organophosphate pesticide, diazinon, was evaluated under experimental condition to Oligochaete worm, Branchiura sowerbyi. The 96 h LC50 with 95% confidence limits of B. sowerbyi was 2.87 (2.50–3.17) mg/l. None of the unexposed control worm died during the experiment. Mortality rate between each dose and mortality rate between 24–96 h depending on time was correlated. The mortality rate also varied significantly (p<0.05) with …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 8, Issue 2, 2018 · pp. 1–5 Read article
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Multi-Response Optimization of Turning Parameters with Vikor-Entropy Method on Machining of AA6061-TiB2 In-Situ Composites
Abstract: In the manufacturing and metal cutting industries, the quality of the surface and strength is essential in defining the surface finish; an excellent surface finish indicates excellent quality in the product. The influence of machining parameters speed, feed and depth of cut on responses like material removal rate, surface roughness and Power consumption on turning of AA6061-TiB2 composites is investigated using the VIKOR-ENTROPY method. The effects of changing parameters on …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 256–268 Read article
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Evaluating EC and TDS Concentration over Temperature Effect for Different Packed Bed Unit Treatment
Abstract: In this research, we evaluated the concentration of Electrical conductivity, Total Dissolved Solid and the effect of Temperature for the different packed bed units set up for treatment. The bio-adsorbents used were plantain stem fiber, banana stem fiber and palm fruit fiber and the investigation was aimed to examine the effect of EC, TDS and temperature on the performance of the bio-adsorbents in a packed bed unit The investigation was …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 37–48 Read article
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Quantification and Forecasting of Plastic waste in Gorakhpur city, India
Abstract: Plastic pollution is one of the biggest environmental threats faced by human society, especially in cities like Gorakhpur, which have minimal resources for waste management but a very high amount of waste that keeps on increasing day by day. The purpose of this research is to determine the total amount of plastic waste (PW) generated in Gorakhpur city and forecast plastic waste generation. The snowball sampling method was used for …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 946–962 Read article
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Laser stimulated downward combustion propagation phenomenon
Abstract: Enhanced energy requirement has necessitated active research efforts to understand combustion behaviour in presence of alternative energy sources. In the last five decades, emphasis on combustion focuses on two aspects viz., improving quality of combustion and addressing the risks/hazards. With recent advancement, an aspect which is researched upon is the combustion behaviour in the presence of laser flow. Their applications pertain to propulsion, energy generation, artillery, fire safety and defence …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 9, Issue 1, 2020 · pp. 32–43 Read article
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Modeling Reaction Rate of Dispersion Coefficient and Oxygen Deficit on Nitrobacteria Transport in Onu-Imo River
Abstract: The migration rate of nitrobacteria in the Onu-Imo River was monitored based on some variables that determine the predictive model for such pollution transport. These parameters were factors applied in developing the derived model for the study. The variables were integrated into the system to monitor their various rates of impact on the transport process in the study environment. This was monitored by applying a one-dimensional flow transport system at …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 1, 2021 · pp. 28–41 Read article