Search
1948 articles for “BR” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
-
Dependency of pure liquid pool boiling heat transfer coefficient to bubble contact angle on roughened Brass heater in new model
Abstract: Heat transfer coefficient of nucleate pool boiling Nucleation is a basic part of phase transformations, which plays an important role in understanding and describing any phase change processes. For a boiling process, nucleation appears in the initial stage, and directly affects bubble formation and boiling intensity. According to the heterophase fluctuations which induce phase transition, the phase change has two main types. Classically, phase change caused by the fluctuation with …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 29–36 Read article
-
Analytical Design of 1 kW Capacity Lithium Bromide/Water Absorption Refrigeration System
Abstract: AbstractIn current era, the energy scarcity is the key concern. In this context, new alternative environment-friendly energy resources have to be explored. The researchers are focusing more on effective and efficient use of energy. The difference in demand and production of energy opens a new arena of heat recovery systems. Vapour absorption refrigeration systems (VARS) are one of the prominent heat recovery systems powered by heat, and can be powered …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 3, 2017 · pp. 36–49 Read article
-
Heterogeneous vs. Homogeneous Catalysis: Comparative Insights and Breakthroughs
Abstract: Catalysis, a pivotal process in chemical reactions, can be classified into two main types: heterogeneous and homogeneous catalysis. This comparative analysis delves into the distinctions, advantages, and breakthroughs in both domains. Heterogeneous catalysis, involving catalysts in a different phase than the reactants, is characterized by ease of separation and catalyst recovery, making it industrially favorable. Conversely, homogeneous catalysis, where catalysts and reactants share the same phase, offers superior selectivity and …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 3, 2023 · pp. 1–7 Read article
-
A Brief Appraisal and Analysis of Existing Practices in the Contracts of Infrastructure Projects of Indian Railways
Abstract: Railways occupy a prominent position in the infrastructure of India. Existing practices in the project management and infrastructure development with special reference to the Indian railways have been brought out with some details in this paper. Tendering phase is very important in the project construction and maintenance of major railway related works. The principles and practices in the public procurement of projects are examined and suitable improvements in the bidding …
Published in Journal of Construction Engineering, Technology & Management · Vol. 6, Issue 1, 2016 · pp. 14–23 Read article
-
Review on Microstrip Patch for Detection of Breast Cancer
Abstract: AbstractAs the number of breast cancer patients are increasing , we need more reliable method that can helps in detecting the type of cancer in early stages which will lead to save the patients’ lives as the earlier tumor is detected the higher chance for recovery. Therefore the aim of our project is to design compact low profile wearable antenna that is used for early cancer detection with low cost. …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 34–37 Read article
-
Effect study of Cu2O in Perovskite (CH3NH3PbX3, X: I, Br, Cl) Solar Cell as Hole Transport Layer
Abstract: AbstractThe detailed modeling and mathematical simulation on perovskite solar cells have been performed with three various perovskite materials, such as “methyl ammonium lead trial halide (MAPbX3, MA= CH3NH3, X: I, Br, Cl)” with aid of solar cell capacitance simulator software (SCAPS) tools. The electrical possessions of MAPbX3 material performed as “active layer” and measured different parameters such as “open-circuit voltage (Voc), fill factor (FF), power conversion efficiency (PCE), and short-circuit …
Published in Journal of Microelectronics and Solid State Devices · Vol. 7, Issue 1, 2020 · pp. 5–10 Read article
-
Direct Power Control of Brushless DC Motor Drive
Abstract: Recently, due to significant increase in demands of electric motors, design and manufacturing of high efficiency motors and related variable speed drives have been regarded by many suppliers. Among several kinds of motors, the brushless DC (BLDC) motor has many advantages including high torque capability. In this paper, for the first time, the possibilities of direct power control (DPC) of BLDC motors fed by a voltage source inverter have been …
Published in Journal of Power Electronics and Power Systems · Vol. 4, Issue 1, 2014 · pp. 13–24 Read article
-
Evolutionary Optimization in MPS: A Brief Review
Abstract: Master production scheduling (MPS) is a combinatorial optimization problem that arises frequently in real-life applications. Because of the complexity and the vast search space, conventional optimization methods such as mathematical programming, dynamic programming and branch-and-bound technique are computationally infeasible. Evolutionary approach-based meta-heuristics have gained prominence in recent years for solving multi-objective optimization problems (MOP). Multi-objective evolutionary approaches (MOEAs) have substantial success across a variety of real-world engineering applications. The present …
Published in Journal of Production Research & Management · Vol. 4, Issue 1, 2014 · pp. 13–21 Read article
-
Non-Invasive Diabetes Test by Breath Analysis using Semiconductor Gadget
Abstract: AbstractNon-invasive detection of diabetes via acetone sensing using nanostructure semiconductor metal oxides (SMO) is an alternative fast and direct method to invasive blood analysis. It is a reliable and accurate technology. Of late, graphene and graphene oxides are promising nanomaterials for acetone sensing.Keywords: Non-invasive diabetes; Breath analysis, Acetone sensing; Nano materials.Cite this ArticleSurajit Kumar Hazra, Sukumar Basu. Non-Invasive Diabetes Test by Breath Analysis using Semiconductor Gadget. Journal of Semiconductor Devices …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 20–22 Read article
-
A Slotted Fabric Antenna for Broad Band Application
Abstract: This article is presented a compact slotted textile patch antenna for broadband applications. The presented antenna is designed on textile substrate with dielectric constant of 1.7 and the anticipated antenna is compact size. It has been simulated using CST too and measurement is done with network analyzer. It covers a bandwidth of 6.45 GHz extending from 2.85 GHz to 9.30 GHz. It has maximum directivity of 2.932 dBi. The measured …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 10–14 Read article
-
Bund Breakage Predictor and Automatic Field Irrigation System
Abstract: Bunds are one among the most common techniques used in agriculture to collect surface run off, increase water infiltration and prevent soil erosion. Their principle is comparably simple by building bunds along the contour lines, water runoff is slowed down which leads to increased water infiltration and enhanced soil moisture. Water is an important resource for agriculture. Bund breakage predictor and automatic field irrigation system is used to calculate the …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 6, Issue 2, 2019 · pp. 1–18 Read article
-
Design and RTL Implementation for AHB-APB Bridge on SoC
Abstract: The focus of this research is to design and implement an interconnection protocol with 32-bit read/write data which operates on AMBA AHB-APB bridge. With the advent of scaling technology, embedded system focuses more on low-power dissipation and SoCs. Hence processors and routing protocols which focus on low-power design by ARM have gained popularity. In high-speed communication modules, the protocol works efficiently but has limitations with device operating at low speed. …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 44–52 Read article
-
Influence of Wind Braces on the Dynamic Performance of an Industrial shed Integrated with Gantry Crane of Different Capacities
Abstract: Linear structural analysis of industrial sheds often neglects ascendancy of different structural elements over the dynamic performance of the shed. A slight variation in the structure may introduce huge steel demand or it can reduce the demand to a considerable extent. This research paper studies the non-linear response of an industrial shed equipped with gantry cranes of different capacities and different structural systems. The influence of these elements has been …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 73–80 Read article
-
Self-Compensation of Commutation Phase Error for Brushless DC Motor
Abstract: BLDC motors are synchronous motors powered by DC electricity via an inverter which produces an AC electric current to drive each phase of the motor via a closed loop controller. Electronic commutation is the on-and-off of the semiconductor switches at appropriate time to turn stator windings. Commutation phase ripple is generated due to the different exchange rate between outgoing phase current and incoming phase current of inverter during commutation period. …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 72–81 Read article
-
Performance Analysis of Slotted and Slotless Brushless DC Motor for Biomedical Applications
Abstract: The development of technology should be an aid for human life to make it better. Hence, a wide variety of motors are used in biomedical applications. A common type of motor employed is a BLDC motor. The BLDC can of slotless or slotted type. The slotless stator has a number of advantages such as reduced inductance and lower torque ripples. The response of the machine is also improved. A comparative …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 60–65 Read article
-
Harmonic Analysis of Full-Wave Diode Bridge Rectifier Circuits
Abstract: This paper analyzes the steady-state harmonic performance of four-diode, single-phase full-wave rectifier bridge circuits. The frequency spectra of the source and load currents are presented. The effect of the load resistance, the source inductance, the smoothing shunt- capacitor as well as the waveform of the supply voltage is illustrated. The approach can also handle cases involving non-sinusoidal sources and non-linear loads. Based on a Mathematica code, the paper presents the …
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 7–21 Read article
-
PERFORMANCE ANALYSIS REGARDING SERVICE LEVEL FOR BRTS AND JAIPUR METRO
Abstract: Most of the Indian cities are struggling to provide adequate public transport system. To enhance the mobility of travel it is mandatory to reduce the use of personalized vehicles. Jaipur is the capital of Rajasthan and one of the fastest growing metro cities. Presently there are two types of mass transit system in the city one is Metro Rapid Transit System (MRTS) referred as Metro trains and Bus Rapid Transit …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 1, 2019 · pp. 26–33 Read article
-
A Scientific Study: Regulation of Autonomic Nervous System through Slow Breath Pranayama
Abstract: Voluntary slow deep breathing functionally resets autonomic nervous system through stretch induced inhibitory signals and hyper-polarization currents that propagate through both, neural and non-neural tissue. The scientific basis of benefits of practicing slow Pranayama, especially alternate nostril breathing (Nadi Shodhana Pranayama as NSP) and Dhyana is regulation of cerebral dominance and shifting of autonomic nervous system. This regulation occurs via Nadisunder control of Agya Chakra. The aim of the present …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 5, Issue 3, 2016 · pp. 23–28 Read article
-
A Study of Drowning Cases brought for Autopsy in GMCH Mortuary
Abstract: Drowning is defined as the process of experiencing respiratory impairment from submersion/immersion in liquid; outcomes are classified as death, morbidity and no morbidity. Drowning is a violent asphyxial death, where air entry to lungs is prevented due to occupation of the lumen of respiratory tract with water or any fluid-media. Drowning is asphyxiation due to immersion in liquid. Drowning is the 3rd leading cause of unintentional injury death worldwide, accounting …
Published in Research and Reviews : Journal of Computational Biology · Vol. 6, Issue 3, 2017 · pp. 9–11 Read article
-
Restoring the Aesthetics and Function of Fractured Anterior Teeth Using BruxZir Anterior: A Case Report
Abstract: The most commonly affected teeth by trauma are the maxillary central incisors. Many cosmetic treatments are available to regain dental aesthetics, but if this trauma is not treated, personal problems can occur, such as difficulties in smiling, laughing, and eating, as well as emotional problems associated with public contact. To fabricate a crown for maxillary incisors is a challenging procedure. The patient demands high aesthetic and the final result usually …
Published in Research and Reviews: A Journal of Dentistry · Vol. 8, Issue 2, 2017 · pp. 1–3 Read article