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1950 articles for “4-D” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Evaluations with RZ/NRZ Optical-CDMA Link
Abstract: AbstractThis article presents the proposed novel design for hierarchical asynchronous optical code-division multiple-access scheme; performance was investigated for numerous key parameters. With single active user, the RZ_ON_OFF ramp OCDMA scheme performance is better than other schemes over shorter reach; NRZ_OCDMA scheme is better for longer reach, depicted BER is in the range of 10-100 to 10-42 with three users and 10-28 to 10-12 with 32 active users over the randomly …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 12–40 Read article
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Is a Farm Carbon Offset Program Good for Farmers?
Abstract: The government of Alberta, Canada, introduced an agriculture carbon offset program in 2007 designed to encourage less intensive carbon creating farm practices that would generate offsets to be sold to the oil producing sector of Alberta at a fixed price. While the model appears to be efficient, there are a range of uncertainties not addressed in the model that raise questions about it long term benefit to farmers.Keywords: Carbon, agriculture, …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 5, Issue 1, 2015 · pp. 34–40 Read article
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Investigation of Supersonic Flow Past a Cavity Using Basic Numerical Techniques
Abstract: This study, investigating various features of supersonic flow past a cavity, uses higher order essentially non-oscillatory Roe (ENO-Roe) method as the numerical method that solves full compressible Navier-Stokes equation in two dimensions. The turbulence effect is modelled considering 3% level of turbulence and by imposing the turbulent gust. It is seen that vortex shedding, which is a small scale phenomenon compared to other features of the flow, has been properly …
Published in Journal of Experimental & Applied Mechanics · Vol. 7, Issue 2, 2016 · pp. 30–40 Read article
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Design Analysis of Micro-Strip Moody Patch Antenna For Space Application
Abstract: Micro-strip antennas are frequently used in wireless applications. There are well known beneficial mechanical characteristics like low profile, planar but conformal to non-planar, easy to fabricate and light weight. Micro-strip antenna has flexibility in the term of electromagnetic parameter like gain, radiation pattern and polarization. In the application of spacecraft, missile and satellite application the antenna requirement is micro-strip due to their light weight, size, cost, performance, low profile and …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 1, 2018 · pp. 1–4 Read article
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Influences of Prefresh and Early Fresh Body Condition Score Changes on Some Holstein Dairy Performance Traits
Abstract: This study was performed to investigate the effect of body condition change from the prefresh to early fresh periods on the subsequent milk production performance in Holstein dairy cows. For this purpose, 89 Holstein cows in a private high yielding dairy enterprise (average milk yield 8000 kg/season) were included in this study. Body condition score (BCS) was evaluated at the prefresh period (260–270 day) post last insemination, as well as …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 4, Issue 2, 2015 · pp. 12–18 Read article
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Performance Improvement of Air Cooled Condenser of Split Air Conditioner: A Study
Abstract: Abstract Running residential or commercial split type air-conditioners plays a vital role for increasing electrical energy consumption in large quantity. While considering the performance of air conditioning system or specific energy consumption which is to be considered, as a function of condenser, compressor and evaporator performance respectively. By improving the heat transfer efficiency of the condenser performance improvement can be achieved, which helps in reducing electrical consumption. In the present …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 3, 2016 · pp. 35–44 Read article
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A Study on Agricultural Waste Management Using ICT
Abstract: Agriculture is one of the main domain sectors for our country. As this domain have many different aspects of the production and their waste martial’s. This paper will discuss about how, the Information and communication technologies (ICTs) plays a major role on who the Agricultural waste can be handle with the help a of the different Tools, Techniques, schemes, methodologies & Systems of ICT that can be greatly useful to …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 8, Issue 1, 2019 · pp. 30–43 Read article
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Verbal Working Memory in Bilinguals: An Exploratory Study
Abstract: The purpose of the study is to investigate Verbal Working Memory (VWM) abilities in bilinguals. Since previous literatures mainly focused on nonverbal aspects of memory, the present study aims to proliferate knowledge on the linguistic aspects of working memory. A total of 30 bilinguals aged between 18 and 30 years were recruited for the study. However, bilingual group had further breakdown into two groups with 15 in each based-on age …
Published in Research and Reviews: A Journal of Health Professions · Vol. 10, Issue 1, 2020 · pp. 37–47 Read article
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Contrast Image Enhancement Using Various Approaches: A Review
Abstract: AbstractImage enhancement is one of the most key issues in high quality pictures such as digital cameras and image research area. Since picture readability may be very effortlessly affected because of lighting fixtures during image acquiring, climate, or other equipment that has been used to seize the picture. These conditions may lead to image suffering from poor contrast and noise. Contrast enhancement converts the pixels depth of the input picture …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 4, Issue 3, 2017 · pp. 39–45 Read article
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Energy Aware Routing for Enhancing Network Lifetime in Wireless Sensor Networks: A Survey
Abstract: In the modern era of communication, Wireless Sensor Networks (WSNs) are one of the very important areas of research. WSNs find applications in many areas including military, healthcare, habitat monitoring and many more. A few applications of WSNs require the deployment of sensors in hostile environment. As recharging and replacing of batteries is not possible in such environments the communication has to be energy efficient. Routing is one of the …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 7, Issue 2, 2020 · pp. 1–4 Read article
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CFD Analysis of Heat Transfer Enhancement in a Circular Pipe Flow by Swirl Flow
Abstract: Heat transfer enhancement techniques are very important to save more energy by using optimal energy sources. Heat transfer rate depends upon different parameters like Reynolds number, properties of fluid, nature of surface, mass flow rate, velocity, temperature and pressure. Many techniques are used for heat transfer enhancement in which swirl flow devices are effective. For enhancement of heat transfer, smooth pipe with tangentially injected swirl flow is better option than …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 16–44 Read article
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Effects of Extrusion Cooking of Sweet Potato on System Parameters and Product Properties
Abstract: Effects of barrel temperature (83–117 °C), feed-moisture content (17–33% w.b.) and screw speed (60–110 rpm) on the system parameters (product temperature, die pressure, motor torque and specific mechanical energy (SME)) and product responses (expansion ratio, waterholding capacity (WHC), swelling power and throughput) during the extrusion cooking of sweet potato were studied using response surface methodology. Second-order polynomial models were fitted for the system parameters and the product responses as a …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 4, Issue 1, 2015 · pp. 32–42 Read article
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A Review of Potential, Generation and Factors of Solar Energy
Abstract: AbstractPower is the integral part of today’s life. Renewable energy is the demand of time because of its great advantages like non-pollutant, abundant etc. Among all the energy sources, solar energy is most promising, quiet and clean source of energy. India receives great amount of solar radiation throughout its boundaries. This study is to review the potential of solar energy in India, it’s technological development and factors of solar cell.Keywords: …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 1–4 Read article
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Agentic AI-Driven Negative Emission Optimization: Large Language Model Orchestration and Quantum Annealing for Real-Time Carbon Capture Policy Simulation Beyond 1.5°C Thresholds
Abstract: The convergence of agentic artificial intelligence, large language model (LLM) orchestration, and quantum annealing presents a transformative paradigm for climate policy computation. This paper introduces Nega Optima a multi-agent computational architecture that integrates LLM-driven policy parsing, quantum annealing-based combinatorial optimization, and real-time integrated assessment model (IAM) feedback loops to simulate negative emission technology (NET) deployment strategies in a post-1.5°C overshoot scenario. Existing carbon capture optimization frameworks suffer from three systemic …
Published in International Journal of Climate Conditions · Vol. 3, Issue 2, 2026 · pp. 7–14 Read article
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E-resources on the Websites of Engineering College Libraries in the Marathwada Region
Abstract: E-Resources are short term for Electronic Resources or electronic information resources. An electronic resource is any information source that the library provides access to users in an electronic format. The libraries of engineering colleges have purchased subscriptions to many electronic information resources in order to provide access free of charge to the users. This paper aims to study the electronic information resources and services available on the library websites of …
Published in Journal of Advancements in Library Sciences · Vol. 6, Issue 1, 2019 · pp. 479–487 Read article
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Evaluation of Short-Term Fatigue Characteristics and Measurements of Modulus Reinforcement of Cement-Polypropylene Composite Material
Abstract: The choice of filler materials along with the derived composition of constituents plays an important role in determining the performance effectiveness of polymeric composite material. This work is an annexure of vivid experimental study succeeding with the evaluation of fatigue characteristics together with the determination of reinforcement and modulus-of-elasticity of cement reinforced polymeric composite material. Inexpensive fly-ash based Portland pozzolana cement is used as filler material with the polypropylene as …
Published in Journal of Mechatronics and Automation · Vol. 4, Issue 1, 2017 · pp. 31–41 Read article
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A Study on Safety Climate Status in Oil and Gas Industries of Karnataka
Abstract: AbstractIndustrial workers all around the world, mainly oil and gas and construction workers often work at dangerous worksites, where they are constantly exposed to hazardous components. This leads to many catastrophic events and disasters. Safety is an important concept which needs to be followed in all industries in order to avoid accidents. But, very few studies related to the safety climate in oil and gas industries have been conducted in …
Published in Journal of Industrial Safety Engineering · Vol. 5, Issue 1, 2018 · pp. 35–43 Read article
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Chemical Constituents and Tyrosinase Inhibitory Activity of Ethyl Acetate Extract of the Leaves of Morus alba L. from Vietnam
Abstract: AbstractFour compounds (DB1–4) were isolated from the Mulberry leaves (Morus alba L.) collected in Thai Nguyen province by chromatographic methods. These compounds were identified as: Kaempferol-3-O-β-D-glucopyranoside (DB1), quercetin 3-O-α-L-rhamnopyranoside (DB2), isofraxidin-7-O-β -D-glucopyranoside (DB3), and (±) -3, 5, 6, 7, 8, 4’-hexahydroxyflavane (DB4). Their structures were elucidated by spectroscopic methods, including mass spectrometry (MS) and nuclear magnetic resonance (NMR). Compound DB4 was isolated from Mulberry leaves for the first time. Compound …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 8, Issue 1, 2018 · pp. 21–26 Read article
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Use of ICT & RFID Technology in Library Services
Abstract: The use of ICTs is widely replacing the traditional services and making use of digital information sources. Due to ICT, the concept of library is changing from physical to hybrid to electronic and digital. This brings the revolution in the services of libraries. RFID is a mix of radio-recurrence based innovation and microchip innovation. The data contained on microchips in the labels appended to library materials is perused utilizing radio …
Published in Journal of Advancements in Library Sciences · Vol. 6, Issue 1, 2019 · pp. 426–429 Read article
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Antifungal Susceptibility Pattern of Candida Species Isolates from Dehradun City Hospitals
Abstract: The present investigation on the topic entitled “Antifungal susceptibility analysis of Candida species isolates from Dehradun City hospital.” was accomplished in the Doon University Microbiology laboratory (P.G.) and Hospital, Dehradun, Uttarakhand, during the period of February 2021 to July 2021. A total of 42 clinical samples were collected from patients, suspected of candidiasis from Dehradun city hospitals. Clinical samples were collected from oral cavity, blood, vaginal fluid and urine of …
Published in Research and Reviews : A Journal of Immunology · Vol. 14, Issue 1, 2024 · pp. 12–29 Read article