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1949 articles for “4-D” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Analysis of Modulation Response of a 450 nm True Blue Semiconductor Laser by Varying Differential Gain
Abstract: AbstractIn this work the analysis of modulation response of a 450 nm InGaN based multi-quantum well (MQW) true blue semiconductor laser have been presented. The internal designing of 450 nm blue laser has been done before. but the desired wavelength of 450 nm was obtained by adjusting the exact concentration of In0.211Ga0.789N/Al0.07Ga0.93N in this work. The effects on modulation response by varying the differential gain have been observed. Also, the …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 1, 2015 · pp. 1–8 Read article
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Bioremediation of TPH in Petroleum HydrocarbonContaminated Clay Soil with an Emerging Nutrient (Solpawa SBR-X TM)
Abstract: This research focuses on the bioremediation of total petroleum hydrocarbons (TPH) in petroleum hydrocarbon contaminated clay soil with an emerging nutrient (Solpawa SBR-XTM). A laboratory experiment was set up and successfully carried out in order to monitor TPH concentration among the various reactors (T1, T2, T3, and T4). This process was monitored for 7 days, 12 days, 22 days, 32 days, 42 days, and 52 days, respectively, for reactors 1, …
Published in International Journal of Pollution: Prevention & Control · Vol. 1, Issue 1, 2023 · pp. 9–16 Read article
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A Survey Paper on Big Data and Industry
Abstract: AbstractRecent advances in new generation information technologies, cutting-edge digital technologies are being harnessed to optimize and automate production, including upstream supply-chain processes. The ultimate goal of industry is that always-connected sensors embedded in machines, components, and works-in-progress will transmit real-time data to networked IT systems. These, in turn, apply machine learning and artificial intelligence algorithms to analyse and gain insights from this big data and adjust processes automatically as needed. …
Published in Journal of Advanced Database Management & Systems · Vol. 7, Issue 3, 2020 · pp. 27–33 Read article
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AUTOSAR 4.0 based ECU State Manager Module Design and Development for Automotive Platform Software
Abstract: As the number of vehicles is increasing day by day, the safety and infotainment requirements associated with vehicles are also become complex. Hence, the count of ECU used in vehicles, in order to satisfy these requirements are growing enormously. As a result complexity increases and it will affect the safety requirements. The complexity of ECU can be reduced to a great extent by using a standardized architecture. Hence, AUTOSAR (AUTomotive …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 63–72 Read article
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Industry 4.0 and Smart Manufacturing: A Review
Abstract: This review looks at Industry 4.0 and smart manufacturing's idea, enabling technologies, implementation issues, and future prospects. Drawing on recent literature, the paper synthesizes key pillars such as the Industrial Internet of Things (IIoT), cyber-physical systems (CPS), artificial intelligence, digital twins, and additive manufacturing. It highlights integration requirements across supply chains, cyber security concerns, workforce implications, and standards activities that influence adoption. The literature survey focuses on empirical studies and …
Published in International Journal of Manufacturing and Production Engineering · Vol. 3, Issue 2, 2025 · pp. 14–17 Read article
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Comparison of Advance Data Modulation Formats in 4×10 Gbps WDM Optical Communication System using YDFA-EDFA and Raman-EDFA Hybrid Amplifiers
Abstract: In this paper, comparison of various advance data modulation formats in 4×10 Gbps wavelength division multiplexing (WDM) optical communication system using various hybrid optical amplifiers (YDFA-EDFA and Raman-EDFA) has been carried out. The advance modulation formats under study include non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), Duobinary return-to-zero (DRZ) and modified Duobinary return-to-zero (MDRZ). The WDM hybrid system has been analyzed over 100 km fiber for 10 Gbps system. It …
Published in Current Trends in Information Technology · Vol. 10, Issue 1, 2020 · pp. 23–29 Read article
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Design of a 4X4 Network-on-Chip Crossbar Router in a System-on-Chip
Abstract: With the number of IPs increasing in an SoC, there is a need for achieving high bandwidth, low latency, scalable multi-core intercommunication and solve the shortcoming of buses. Network-on-chip is a technology which is a solution for such problems. Network-on-chip solves the problem by implementing a communication network of switches, routers and resources. This paper proposes a design for communication among subsystems between intellectual property cores in an SoC design. …
Published in Journal of Microcontroller Engineering and Applications · Vol. 2, Issue 3, 2015 · pp. 28–35 Read article
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Design and Simulation of 4-bit Multiplier using Carry Look-Ahead Adder at Transistor Level
Abstract: Multiplication is a basic operation performed in the Arithmetic Logic Unit, Digital signal processing, Floating-point unit and Application specific integrated circuits. This paper deals with the design and simulation of the 4-bit multiplier using a carry look-ahead adder at the transistor level. The total design process involves hierarchical implementation. Where the basic gate operations like AND, OR, NOT, and XOR are repeatedly used for designing the entire circuit. So, the …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 3, 2021 · pp. 10–18 Read article
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Cluster Based Sleep Transistor Approach for Low Power 6T SRAM Cell
Abstract: The demand of high density VLSI circuits has been increasing as the size of ICs is becoming small day by day. It has been seen that, to reduce active power dissipation in memory, the supply voltage reduction is necessary. Lowering the supply voltage is one of the most straightforward and effective ways to suppress the energy consumption because reducing the supply voltage could reduce the dynamic power and leakage power …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 41–48 Read article
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Enhancing Weed Control Efficiency Using Herbicide Mix in Indian Mustard (Brassica juncea)
Abstract: A field experiment was conducted during rabi seasons of 2015 to 2016 at Junagadh (Gujarat, India) to study the integrated weed management through manual weeding, herbicides and herbicides mix in mustard [Brassica juncea (L.) Czernj. and Cosson]. The results revealed that among the treatments, pre-emergence application of tank mix oxyfluorfen 0.12 kg ha-1 + pendimethalin 0.45 kg ha-1 fb HW and IC at 40 DAS, oxyfluorfen 0.18 kg ha-1 as …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 6, Issue 3, 2017 · pp. 8–11 Read article
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First Insights into Whole Genome Sequencing of the Mycobacterium tuberculosis Complex: Molecular Diversity and Drug Susceptibility Patterns in Senegal
Abstract: Background: We conducted a bibliographic analysis of the Mycobacterium tuberculosis complex (MTBC) in sub-Saharan Africa, which included the analysis of 8,139 genomic sequences from 34 of the 49 sub-Saharan African countries. Notably, only one complete sequence from Senegal was identified, which had been generated in the United States. Our primary objective was to utilize whole genome sequencing (WGS) to detect resistance in anti-tuberculous strains of the MTBC in Senegal. This …
Published in Recent Trends in Infectious Diseases · Vol. 2, Issue 1, 2025 · pp. 1–14 Read article
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An in-silico toxicity study of the phytocompounds found in Pongamia pinnata leaves using the ProTox-II web server
Abstract: The aim of the current study was to determine the Insilco toxicity of the phytocompound present in the leaves of Pongamia pinnata. The leaves of Pongamia pinnata have long been used in traditional medicine for their therapeutic properties. Nowadays, herbal toxicity is a common problem caused by incorrect dosage. The FDA reviews the safety and effectiveness of herbal products only in response to patient or health care provider complaints—problems with …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 13, Issue 1, 2024 Read article
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Human-in-the-Loop AI in HR Decision-Making: Insights from Big 4 AI Governance Reports
Abstract: The integration of artificial intelligence (AI) in human resource (HR) decision-making has transformed recruitment, performance evaluations, and talent management. However, biases embedded in AI-driven HR systems present significant ethical and operational challenges. Human-in-the-Loop (HITL) AI offers a hybrid approach that combines AI efficiency with human oversight to enhance fairness and accountability. This paper systematically analyses HITL AI in HR decision-making using qualitative analysis of AI governance reports from Big 4 …
Published in Current Trends in Information Technology · Vol. 16, Issue 1, 2025 · pp. 43–50 Read article
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Geotechnical Influence Factors in Empirical Design of Highway Pavement: The A123 Ilorin – Lokoja Highway, Nigeria Case Studies
Abstract: Site investigation and application of geological and geotechnical influence factors on the highway were investigated. Method involved field sampling, geotechnical laboratory and x-ray diffraction analysis and use of SRTM extracted slope and drainage parameters; and their integration in a GIS based multi-criteria decision analysis to derive a subgrade suitability map as a design tool. The suitability criteria classified the highway into four (4) design sections. Section one for very low …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 3, 2024 · pp. 53–70 Read article
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ENGINEERING ASSESSMENT OF WATER TREATMENT METHODS FOR PUBLIC HEALTH IN OGUN STATE, SOUTH-WESTERN NIGERIA
Abstract: Water and sanitation are important determinant of public health and there is a need to evaluate it. Method used was a descriptive qualitative assessment of sanitation and water handling practices in some rural areas of Ogun State Nigeria was conducted. Results: The results obtained showed that about 30% do not have toilet facility while 55.6% had pit latrine. Only 20.8% had a closed dustbin, open dustbin (37.2%) while 42.0% had …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 8–16 Read article
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Investigation of the Effects of Solpawa SBR-X TM Doses on Total Petroleum Hydrocarbon in Loam Soil at Different Depths
Abstract: Laboratory trials of environmental remediation products bring the hope of inventing such products to reality for many of today’s intractable environmental pollution conditions, paving the way for the field trials and subsequent large-scale field application. This laboratory study was conducted as the first phase of a 2-tiered adaptive trials of Solpawa® Bioremediation System (Solpawa-SBX) funded by the Nigerian Content Development and Monitoring Board (NCDMB). The study investigated the effectiveness of …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 64–72 Read article
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Computational Molecular Docking Studies to Design Novel 2, 3-Substituted-1-(4-(Piperidin-1-yl) butyl)-1H- indol-5-ol Derivatives for Estrogen Receptor Alfa in AF-2 Domain
Abstract: The present manuscript describes the designing of novel 2, 3-Substituted-1-(4-(Piperidin-1-yl) butyl)- 1H-indol-5-ol derivatives as specific estrogen receptor alfa modulators and their screening by docking studies to determine the binding interaction for the best-fit conformations in the binding site of the ERα receptor. Based on the results of docking studies, the selected ligands reveal the all- important functional groups of the ligands that interact with active amino acid residues in the …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 15–49 Read article
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The Anhadnaad Universe
Abstract: Current Science considers that 95% universe is made of Dark energy and Dark Matter which are completely unknown entities and can’t be detected directly. Current Science also does not believe in independent existence of Consciousness on its own. It rather consider it as an outcome of electrical interaction in brain cells which means there are as many consciousnesses as the number of brains in the entire universe. But my theory …
Published in Research & Reviews : Journal of Physics · Vol. 14, Issue 2, 2025 · pp. 19–29 Read article
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Synthesis, Structural Studies and Catalytic activity of Copper(II) Complex Supported by N, N′-bis (2-Hydroxy-3-Methoxybenzaldehyde) 4-Methylbenzene-1, 2-Diamine
Abstract: A novel robust method for synthesis of 3-MOBdMBn-Cu complex, supported by -ONNO-tetradentate Schiff-base ligand is presented. This copper complex is prepared by the reactions of metal solution with one molar equivalent of 3-MOBdMBn (N, N’-bis (2-hydroxy-3-methoxybenzaldehyde) 4-Methylbenzene-1, 2-diamine) Schiff-base ligand in methanol under nitrogen atmosphere. In contrast to other catalysts, the main advantage of this catalyst system was that the cost of the catalyst was remarkably low and it can …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 53–60 Read article
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Power loss by blade deflection in flexible rotor wind turbines
Abstract: Effects of deflection onto the performance of small wind turbines with flexible rotor-blades have been studied and analysed. The goal of the study has been the evaluation of the wind turbine output power loss due to angular deflection because of bending effects caused by gravity. Wind turbine blades have been deformed under constant load at the tip of the blade for periods up to 40 days. Deformation process has been …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 3, 2021 · pp. 13–29 Read article