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1960 articles for “4” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Performance Study in Modified DPSK, MZI Delay Mismatch at 40Gbps Fiber Dispersive Channel
Abstract: AbstractHigher data rate transmission is a desirable feature for the communication system in every era. As they have potentially higher fiber capacity, also have lower cost per bit. This paper presents performance investigation with partial differential phase shift keying and influence of MZI delay mismatch in the high data rate dispersive channels. Ideal fiber braggs grating is considered as fiber dispersive medium with different dispersion. Numerical simulation depicts that in …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 2, 2016 · pp. 18–23 Read article
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Design Optimization of C-Band 4-Channel WDM Optical Communication System using EDFA
Abstract: AbstractIn this work, the design and experimental characterization of high performance C band Erbium Doped Fiber Amplifier (EDFA) booster which is pumped at 980 nm are presented. The system is simulated using Optisystem software to achieve gain flatness of EDF through optimized fiber length and pumping wavelength. The performance of the system is more efficient at the pumping wavelength of 980 nm than that of 1480 nm for a wide …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 1–8 Read article
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Investigate an Implementation Study of TI-6AL-4V Lattice-based Scaffold Design Using Finite Element Analysis
Abstract: Implementation studies are advised to determine the effectiveness and performance of bone scaffolding in morphology, which has been demonstrated scientifically. The rehabilitation of bone defects, which is still a complex problem in orthopedic surgery, was the subject of an implementation study we provided. Biomaterial scaffolding porosity and pore size are essential in both in vivo and in vitro bone development. However, it has been linked to various drawbacks, including poor …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 1, Issue 1, 2023 · pp. 28–35 Read article
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Foundry 4.0: Revolutionizing Casting Production with Computerized Systems
Abstract: For a considerable amount of time, foundries used computers for handling inventory, waging, wages, accounting, personnel records, and quality control. Nearly all of the foundry's systems and machinery are computerized. Through the installation of computers in foundries, employees' workloads and levels of stress have reduced significantly, and the workplace feeling has greatly improved. This review paper explores the potential implications and functions of computers in foundries. A thorough explanation of …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 1, Issue 2, 2023 · pp. 1–11 Read article
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Study of Dielectric and Magnetic properties for ZnFe 2 O 4 Nanoparticles Synthesized usinghigh current Exploding Technique
Abstract: The current article uses the exploding wire technique to examine the magnetic, electrical, and dielectric properties of nanoscale zinc copper ferrite (ZnFe2O4). The SEM micrographs confirm the almost uniform size distribution of the nanoparticles. The Mossbauer spectrum of the nanoparticles was recorded with an externally applied magnetic field at room temperature. The ferromagnetic behavior of the ZFO sample was determined through VSM measurements at ambient temperature, and the M-H loop …
Published in Journal of Polymer & Composites · Vol. 11, Issue 12, 2023 · pp. 161–166 Read article
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Smart Fast Charging System with Active Cell Balancing for 4S1P Battery Packs and Smart Charger for EVs
Abstract: In the realm of electric vehicles (EVs), efficient charging solutions play a pivotal role in enhancing user experience and advancing sustainability. This project introduces three innovative concepts aimed at revolutionizing EV charging infrastructure: Parallel Charging, Smart Charger, and Active Cell Balancing. Parallel Charging introduces a groundbreaking approach to charging by efficiently delivering power to multiple batteries simultaneously. By doing so, it significantly reduces overall charging time, thereby enhancing convenience for …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 1, 2024 Read article
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Synthesis and Characterization of VO 2+ doped SrMg 2 (PO 4 ) 2 Nanopowder by Solid State Reaction technique suitable for White LED material
Abstract: VO2+ doped SrMg2(PO4)2 nanopowder was synthesized by using solid state reaction (SSR) technique. Various experimental techniques have been performed on prepared sample. XRD analysis has revealed that prepared nanopowder is in monoclinic phase. The average crystallite size, micro strain and dislocation density evaluated and make an analogy with W-H plot method. SEM micrographs shows that agglomerated stone like structure and EDS spectrum shows elemental compositions of synthesized sample. FTIR spectrum …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 95–110 Read article
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AI-News 4.0: Most Suitable LLM for UPSC Aspirants
Abstract: In recent years, the domain of interactive artificial intelligence (AI) has experienced a significant surge with large language models (LLMs) at the forefront of this evolution. AI systems, including those based on the GPT-3.5 framework, have been engineered to address various tasks such as responding to intricate inquiries, participating in conversations, and executing sophisticated natural language processing (NLP) operations. A prominent LLM, known for its adaptability, prompts an essential inquiry: …
Published in International Journal of Computer Science Languages · Vol. 2, Issue 2, 2024 · pp. 47–53 Read article
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Advanced 4-Element UWB-MIMO Antenna Design: Achieving High Isolation and Multi-Band Rejection for Advanced Wireless Applications
Abstract: In this study, we present the design, fabrication, and analysis of a step-by-step Ultra-Wideband (UWB) Multi-Input Multi-Output (MIMO) antenna operating from 3 to 14 GHz. The antenna consists of four elements, each characterized by high isolation and equipped with four band-rejection features. These elements are implemented on a Rogers substrate with εr=3. Each antenna element is a modified rectangular patch, incorporating partial ground etching to achieve wider bandwidth. Two sets …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 40–62 Read article
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4D Printing in Drug Delivery: Application of Shape- Morphing Materials in Controlled Drug Release
Abstract: Four-dimensional printing technology has transformed the pharmaceutical landscape, offering unprecedented opportunities for innovation in drug development and delivery. This emerging technology enables the creation of complex geometries and customized structures, facilitating the design of personalized medications tailored to individual patient needs. Personalized dosing and drug release profiles, customized pill shapes and sizes for improved swallowability. Enhanced drug solubility and bioavailability, rapid prototyping and testing of pharmaceutical products. Development of complex …
Published in Trends in Drug Delivery · Vol. 12, Issue 3, 2025 · pp. 08–16 Read article
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Experimental Investigation on 4-Stroke Diesel Engine Using Waste Cooking Oil Biodiesel Fuel
Abstract: Due to using of fossil fuels, the world today is faced with serious environmental pollution. However, these fuels are limited and depleting day by day as the consumption is increasing very rapidly. Hence, it is necessary to find out a clean alternative fuel produced from renewable sources. Biodiesel production and applications are gaining popularity in recent times due to diminishing petroleum reserves and detrimental environmental impacts. Edible and non-edible oils …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 19–28 Read article
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Low Power Area Efficient 4×4 Vedic Multiplier using GDI half adders with Better Delay Performance
Abstract: In the field of VLSI, wireless communication and digital signal processing, low power and area efficient architectures are considered. Majority of such applications uses multiplication. The multiplication is done using repetitive addition and shift and add method. It consumes more area delay and power. Vedic multiplier is one of the efficient multiplier. It is designed using different Vedic techniques or sutras, which reduces the area, power consumption and provide better …
Published in Journal of Control & Instrumentation · Vol. 10, Issue 2, 2019 · pp. 28–39 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 Implementation of A 4-bit Multiplier using Wallace Tree Architecture in 180 nm Technology
Abstract: Over the period of last decade, power dissipation has become one of the most important factors for VLSI designers in the design of most digital systems. Even though the speed and area are considered to be the critical factors in design of digital systems, there is a trade of with power consumption. Adders and multipliers are the most important arithmetic units in a processor and the major sources of power …
Published in Journal of Microcontroller Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 17–23 Read article
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A Novel Improved Model of Three-phase Shunt Active Power Filter using Adaptive Tabu Search and Genetic Algorithm in Aircraft Power Utility of 400 Hz
Abstract: A new improved model of aircraft shunt filter has been proposed in this paper. The shunt active power filter model has been improved using Adaptive Tabu Search Algorithm and Genetic Algorithm. ATS algorithm has been used to obtain the optimum value of parameters of the PI controller; whereas Genetic Algorithm has been used to find the optimum value of filter inductor used in active filter. The new improved model of …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 3, 2013 · pp. 6–14 Read article
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Performance Analysis of 3T DRAM Using FinFET Based with Leakage Reduction Techniques at 45 nm Technology
Abstract: The proposed area of research is to reduce the power consumption, leakage voltage, leakage current and leakage power of DRAM while maintaining the competitive performance. The Fin FET approach is used in DRAM for high performance. Fin type field effect transistors (Fin FET) are capable substitutes for bulk CMOS at the nano-scale. Fin FET are double gate device. A Fin FET uses an intrinsic body. It greatly suppresses the device-performance …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 2, 2017 · pp. 28–34 Read article
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A Comparative Study of ANN and Traditional Control Techniques based Active Shunt Power Filter for 400 Hz Aircraft Electric Power System
Abstract: Sinusoidal current control strategy for extracting reference current for shunt active power filters have been modified using artificial neural network (ANN) and its performances have been compared too. The acute analysis of comparison of the compensation capability is based upon THD, speedwell and recommendations will be given for the choice of technique to be used. The simulated results using MATLAB model are shown in this paper, and they will undoubtedly …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 42–49 Read article
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A REVIEW ON RECENT TRENDS AND CHALLENGES IN MICROMACHINING AND MACHINABILITY OF Ti-6Al-4V
Abstract: Based on several literature examinations from past decades, it is clearly observed that limited research has been done till date concerning to micromachining and had a partial understanding of it with focus on miniaturized parts. This review article presents a complete comprehensive on machining process at micro level with attention in drilling for work horse of titanium alloys. The Ti and its alloys are the most attractive materials due to …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 3, 2018 Read article
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A Review on Recent Trends and Challenges in Micromachining and Machinability of Ti-6Al-4V
Abstract: Based on several literature examinations from past decades, it is clearly observed that limited research has been done till date concerning to micromachining and had a partial understanding of it with focus on miniaturized parts. This article presents a complete comprehensive review on machining process at micro level with attention in drilling for work horse of titanium alloys. The Ti and its alloys are the most attractive materials due to …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 7–31 Read article
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Effects of Cavity Length on the Performance Characteristics of InGaN based 420 nm MQW Blue Violet Laser
Abstract: AbstractThis research work has been carried out to improve the performance of a MQW blue violet laser to get an efficient and high power output. For this purpose the structure is designed using In0.156Ga0.844N/Al0.07Ga0.93. A high performance of the laser is obtained with the optimized values of injection current and differential gain. A maximum optical output power of 220.3 mW is obtained which enhances the designed laser for the application …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 20–26 Read article