Search
1975 articles for “SUB” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
-
Modernization and Digitization in Power Grid Sub-Stations– The Prime tool for Multi Objective Optimization Methods.
Abstract: All Grid Sub-stations has four sections to control, operate and protect the large gamut electrical Power for its smooth flow till to the end customer.1. Generation, Loading, Conversion and Carrier Devices: We have generators as generation device, Motors and other electrical equipment as Loading device, Transformers as conversion device and Electrical Conductors as Carrier device. On technology front in this section, we have not experienced much technological changes. Only the …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 1, 2022 · pp. 10–18 Read article
-
Sub-watershed wise Runoff Modeling using Drainage Morphometric Analysis in Karur District, Tamil Nadu, India through Remote Sensing and GIS Techniques
Abstract: Morphometric examination, being extensively used to evaluate the drainage individuality and have been found to be a helpful tool to identify areas runoff prone sub-watersheds in this current study. Remote Sensing and Geographical Information System has been demonstrated as successful apparatus in the demarcation of drainages and sub-watersheds boundary and morphometric investigations of sub-watersheds. The current study integrates a morphometric study of 68 sub-watersheds of Karur District, Tamil Nadu, India. …
Published in Journal of Remote Sensing & GIS · Vol. 10, Issue 2, 2019 · pp. 52–65 Read article
-
Effects of Sub-Zero Temperatures on the Viscoelastic Properties of Magnetorheological Elastomer
Abstract: Magnetorheological elastomers (MREs) are smart materials capable of tuneable stiffness and damping under applied magnetic fields. This renders the material as a promising candidate for adaptive vibration control and semi-active engineering applications. While their behaviour at elevated temperatures has been widely explored, limited attention has been given to their performance under sub-zero conditions, which are critical for cold-environment applications. As this has become an important concern, the study investigates the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 326–340 Read article
-
Electromagnetic and Dielectric Performance of Polymer–Ceramic Composite Substrates for Fractal-Based IoT-Antenna Fabrication
Abstract: Polymer–ceramic composite substrates play a crucial role in determining the electromagnetic performance, mechanical stability, and thermal reliability of radio-frequency devices. In this work, a polymer-based composite substrate is systematically investigated for its suitability in compact IoT and RFID antenna applications. A fractal-structured antenna is employed as a functional test platform to evaluate the dielectric behavior, impedance characteristics, and radiation efficiency of the composite substrate. Novelty of the proposed reader antenna …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1518–1534 Read article
-
Strengthening of Subgrade and Sub-Base of Bituminous Pavement Using RBI Grade 81
Abstract: Abstract The objective of the work is to determine the effectiveness of RBI Grade 81 for improvement in engineering properties of medium plasticity clayey soil. RBI Grade 81 was treated with collected soil sample at different dosages. Various samples have been made by mixing soil with 0, 2, 4, 6 and 8% RBI Grade 81; method of soil replacement is opted for the preparation of samples. After studying the properties …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 3, 2016 · pp. 27–32 Read article
-
Performance Enhancement of Vapour Compression Refrigeration System by Using Solar Thermoelectric Sub-Cooler
Abstract: Abstract Refrigeration plays a crucial role in many aspects of human life, due to energy crisis it is essential to improve the performance of a refrigerator for given inputs and need to satisfy the environmental challenges with respect to ozone depletion and global warming, R-134a as a refrigerant has a unique thermal characteristics such as low viscosity, good heat transfer coefficients, non-toxic, non-corrosive and environmental benefits in comparison with conventional …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 27–37 Read article
-
Design and Implementation of Single-Phase, Three-Level, Sub-Harmonic PWM Inverter with Short-Circuit Fault Detection
Abstract: This paper investigates the design and implementation of single-phase, three-level inverter controlled by sub-harmonic pulse-width modulation (SH-PWM). The performance of developed 3-level inverter is simulated and then is compared with 2-level conventional inverter as well as FFT analysis. Experimental test has been undertaken to examine the operating characteristics of the implemented inverter for supplying an inductive load. To increase the reliability of designed inverter in different applications, a short-circuit fault …
Published in Journal of Instrumentation Technology & Innovations · Vol. 5, Issue 2, 2015 · pp. 5–13 Read article
-
Investigation of Rock Dust Suitability as Improvement Material of Subgrade and Sub-base Laterite Material of Elerinjare, Kwara State, Nigeria, in Pavement Construction
Abstract: The current study involves the improvement of laterite soil by addition of granite dust. The laterite and dust used for the study were collected at Elerinjare town, Ilorin. The analyses were done in a laboratory. The tests are compaction test, specific gravity, California bearing ratio (CBR) (soaked and unsoaked), Atterberg's limit, Sieve analysis, and bulk density. In this investigation, an attempt was made to stabilize lateritic soil using quarry dust …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 2, 2023 · pp. 41–57 Read article
-
Sadyo-Vaman in Sub-Acute Stage of Chronic Bronchial Asthma: Case Report
Abstract: A 26-year-old, unmarried, non-smoking, non-alcoholic male patient has been suffering from bronchial asthma since last six years. The symptoms usually used to remain mild to moderate with 2 to 3 episodes of acute attack per year. Patient was often on allopathic medications to subside the symptoms. There was mild cough with white expectoration, recurrent attack of sneezing, running nose and little breathlessness since last 2 days. After examination it was …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 8, Issue 3, 2021 · pp. 55–59 Read article
-
RURAL ROAD PAVEMENT SUBGRADE AND SUBBASE IMPROVEMENT USING LIME, FLY ASH AND GEOSYNTHETICS IN SOUTH GUJARAT REGION
Abstract: South Gujarat region comprises of Narmada, Surat, Tapi, Navsari, Valsad and Dang districts. The majority of the region has soil type varying from clayey to clay loam type soil. Also, the average annual rainfall is more than 1500 mm in the region. Some parts of Surat, Navsari and Valsad districts are in coastal region and have soft and compressible clayey soil. Under this environmental scenario of soil, climate and increasing …
Published in Journal of Remote Sensing & GIS · Vol. 11, Issue 2, 2020 · pp. 62–71 Read article
-
Machine Learning Assisted Timing Violation Prediction in Sub-7nm VLSI Physical Design
Abstract: The continuous scaling of semiconductor technology into the sub-7nm regime has introduced significant challenges in timing closure due to process variability, interconnect delay, power density, and manufacturing uncertainties. Conventional static timing analysis techniques often require extensive computational resources and iterative optimization cycles, resulting in increased design complexity and longer turnaround time. This research proposes a Machine Learning Assisted Timing Violation Prediction framework for sub-7nm VLSI physical design to improve early-stage …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 4, Issue 1, 2026 Read article
-
Design of Slew Aware Clock Distribution Network for Ultra Low Power Sub-threshold Applications
Abstract: Clock distribution network consumes significant amount of power due to its high switching activity. The high power consumption issue can be satisfactorily addressed by the sub-threshold operation of device, however at the cost of degraded performance and magnified variability. This paper investigates the suitability of conventional clock distribution network for sub-threshold regime and proposes a novel strategy of having an optimized uniform H-tree with a pair of buffer only at …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 1, 2019 · pp. 22–37 Read article
-
Assessment of Animal Trials Conducted on Protectivity of Potential Sub-unit and Recombinant Vaccines against Pasteurella multocida B:2
Abstract: Haemorrhagic septicaemia, caused by Pasteurella multocida serotypes B:2 and E:2, is an acute, fatal and septicaemic disease of bovines occurring as catastrophic epizootics in most tropical regions of Asia and Africa. As chemotherapeutic treatment of P. multocida infections is expensive and ineffective, prevention of disease outbreaks following immunization is the most potent tool. Although, various vaccine formulations as alum precipitated, oil adjuvant, multiple emulsion and live attenuated vaccines are currently …
Published in Research and Reviews : A Journal of Immunology · Vol. 6, Issue 2, 2016 · pp. 1–12 Read article
-
Exploring Polymer Substrates for CBSIW Antennas: Paper and Denim for Enhanced Gain and Bandwidth
Abstract: This paper presents a novel approach to antenna design by leveraging the unique properties of paper and Denim materials, both of which are polymers. This research underscores the potential of unconventional polymer materials like paper and jeans in antenna design, offering new avenues for the development of lightweight, flexible, and cost-effective communication devices for diverse wireless applications. The study focuses on the design and analysis of non-conventional substrate-based Circular Backed …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 64–80 Read article
-
GIS Based Spatial Analysis for Urban Water Supply: A Case of Kedamay Woyane Sub-City, Mekelle City, Ethiopia
Abstract: Access to drinking water supply is one of the universally recognized basic socioeconomic and environmental problems as it is one of the basic needs for human survival. However, this problem is more acute in developing countries like Ethiopia where there is absence and inequity distribution of drinking water access among the society. Nerveless, the problem is more serious in the country’s urban cities like Mekelle city, where the water distribution …
Published in Journal of Remote Sensing & GIS · Vol. 7, Issue 1, 2016 · pp. 54–63 Read article
-
UV Induced Increase in Activity of Subtilisin from Bacillus subtilis MTCC441
Abstract: Microorganisms are constantly exposed to varying physical, chemical and biological conditions which induce morphological, biochemical and genetic changes in them. These changes may be deleterious to some organisms whereas others develop mechanisms to overcome such stresses. This study was conducted to understand the microbiological and biochemical changes in bacteria under conditions of UV stress. Bacillus subtilis MTCC441, a ubiquitous, spore forming bacterium was chosen as the model organism for this …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 4, Issue 1, 2014 · pp. 22–27 Read article
-
Sub-Pixel Classification of Multi-date Satellite Images for Accurate Change Detection in Pichavaram Mangroves, Tamilnadu, India
Abstract: The Pichavaram mangrove wetland ecosystem contains species such as Rhizophora apiculata and Avicennia marina which are interspersed with the creeks and marshland landforms. Various studies have indicated that over the years the areal extent of this mangrove ecosystem has decreased due to both human impact and natural causes (erosion). However, field visits have indicated an increase in the areal extent due to re-forestation by the officials of the forestry department. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 2, Issue 3, 2013 · pp. 30–37 Read article
-
Exact Solutions of Kuramoto–Sivashinsky Equation Using Modified Sub-equation Method
Abstract: Equations for non-linear evolution are mathematical representations of physical phenomena. The physical interpretation of the solution functions of these equations enhances the viewpoint of many natural processes. Numerous scientists who acknowledge this truth have focused on this area. These mathematical models are even more important since they provide light on a multitude of events when their solutions take on a physical significance. Through their research, numerous scientists create methods and …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 11, Issue 2, 2024 · pp. 25–33 Read article
-
Simulation of Sub-synchronous Resonance (SSR), and Mitigation of SSR by Static Synchronous Series Compensator with Lead Lag Compensator
Abstract: This research work presents a narrative method of alleviating the SSR problem using a static synchronous series compensator (SSSC). This method is based on using the SSSC to inject unbalanced series quadrature voltages and unbalanced shunt reactive currents in transmission line just after clearing faults. When the sub-synchronous oscillations drive unsymmetrical phase currents, the developed electromagnetic torque will be lower than the condition when three-phase currents are symmetrical. The unsymmetrical …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 1, 2012 · pp. 18–23 Read article
-
Exudation – An Advancement in Micro-Irrigation with Sub-Surface Drip Irrigation (Porous Pipe)
Abstract: The awareness has slowly been developed for careful and effective utilization of natural resources like water and energy. Exudation, i.e., sub-surface irrigation with porous pipe can be an efficient water-saving method of irrigation for many less developed arid and semi-arid regions. Sub-surface drip irrigation, i.e., SDI has been an important part of agricultural irrigation throughout the world. During last three decades, sub-surface irrigation system is being used owing to its …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 2, 2014 · pp. 29–34 Read article