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140 articles for “filters”
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Hybrid Digital–Analog Signal Processing Framework forEnhanced Data Transmission in Next-Generation Wireless Communication Systems
Abstract: The rapid advancement of next-generation wireless technologies such as 5G and 6G has created an increasing demand for high data rates, low latency, and energy-efficient communication systems. Conventional digital signal processing techniques, while flexible and accurate, often suffer from high computational complexity and power consumption, whereas analog signal processing provides low-latency and energy-efficient solutions but lacks adaptability and robustness. This paper proposes a novel hybrid digital–analog signal processing framework that …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 1, 2026 · pp. 50–59 Read article
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Harmonic Elimination in PV System Using SPWM-BasedSeven-Level Cascaded H-Bridge Multilevel Inverter
Abstract: The modern transform toward renewable energy sources has raised the use of Photovoltaic array andMultilevel Inverters (MLIs) in the current power systems. These technologies are not only able to relievethe problems related to the shortage of fossil fuels but also help to curb global warming and pollutionof the environment. A 7-level MLI, which is controlled by Sinuoidal Pulse Width Modulation (SPWM)is explored as a method of PV integration in this …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 2, 2025 · pp. 23–38 Read article
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From Waves to Wires: The Story of AnalogSignals
Abstract: Analog signals form the foundation of how humans originally captured, communicated, and processed information in electronic devices. Characterized by their continuous fluctuation in amplitude, frequency, and phase, these signals readily replicate real-world phenomena such as sound, light, and temperature. This article covers the history of analog signals from their roots in natural waveforms to their implementation in electrical circuits and communication systems. It addresses essential topics such waveform representation, signal …
Published in International Journal of Digital Communication and Analog Signals · Vol. 12, Issue 1, 2026 · pp. 44–49 Read article
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Microgrid Sources and Power Electronic Interfaces: A ComprehensiveReview on Source Characteristics, Converter Design, Protection, Power Quality, and Energy Storage Integration
Abstract: Microgrids have become a prospective technology in improving energy reliability, sustainability, and resilience through a combination of a variety of distributed energy sources, sophisticated power electronic interface, and energy storage systems. In this paper, there is an in-depth discussion of the source of microgrids, its fundamental features, and how it works and the criteria that may be used in selecting the source of microgrids depending on the factors involved and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 11, Issue 2, 2025 · pp. 30–61 Read article
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Recent Changes in the Signal System
Abstract: Recent years have seen big improvements in signal systems, thanks to fast progress in communication technologies, artificial intelligence, and hardware capabilities. Signal systems are very important for modern technology. They are the basis for many different uses, including telecommunications, transportation, industrial automation, and medical diagnostics. Signal systems are all about making, sending, processing, and understanding signals, whether they are analogue or digital, so that information may be shared easily. As …
Published in International Journal of Digital Communication and Analog Signals · Vol. 11, Issue 2, 2025 · pp. 1–8 Read article
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Emission Reduction Strategies in Diesel and Gasoline Engines: Progress and Future Directions
Abstract: Abstract The global transportation sector remains a significant contributor to greenhouse gas emissions and air pollution, necessitating continuous advancements in emission reduction strategies for internal combustion (IC) engines. Diesel and gasoline engines, despite their efficiency and widespread use, produce harmful pollutants, such as nitrogen oxides (NOx), particulate matter (PM), and carbon monoxide (CO). These emissions contribute to serious environmental and health issues, including global warming, respiratory diseases, and ecosystem degradation. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 2, 2024 · pp. 11–15 Read article
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Impact of Exhaust Gas Recirculation on NOx Emissions and Efficiency in Diesel Engines
Abstract: Abstract Exhaust gas recirculation (EGR) has emerged as a pivotal strategy to reduce nitrogen oxide (NOx) emissions from diesel engines, which significantly contribute to air pollution and environmental degradation. NOx emissions pose serious concerns due to their role in forming smog, acid rain, and adverse health impacts. By recirculating a portion of the exhaust back into the intake manifold, EGR reduces these emissions by restricting the manufacturing of NOx and …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 2, 2024 · pp. 1–5 Read article
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Sustainability Assessment and Resource Optimization for Expansion of Metallurgical and Alloy Production Facilities in Odisha
Abstract: This study presents a comprehensive assessment of sustainability measures and resource optimization strategies for the expansion of metallurgical and alloy production facilities in Odisha, India. The research examines a facility expansion project encompassing 32.63 hectares, analyzing environmental impacts, resource utilization, and socioeconomic implications. The study evaluates key sustainability parameters including air quality management through ESPs and bag filters maintaining PM emissions below 30 mg/Nm³, water resource optimization with a projected …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 1, 2025 · pp. 18–25 Read article
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Green Nanotechnology: Principal Role of Green Nanoparticles in Environmental Remediation and Wastewater Treatment
Abstract: A recent development in nanotechnology is green nanotechnology. The major concerns of this technology are improving health status, ensuring sustainable energy, ensuring sustainable environmental and green economy, and reducing waste. This research is, therefore, concerned with the role of green nanotechnology and the potential role of green nanoparticles in environmental remediation and wastewater treatment. This technology is expected to effectively treat contaminated water, heavy metal-containing water, and polymer waste. Green …
Published in International Journal of Applied Nanotechnology · Vol. 11, Issue 1, 2025 · pp. 1–8 Read article
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Enhancing Low Voltage Ride-Through Capability in Wind Energy Conversion Systems Using Phasor
Abstract: This paper presents a comprehensive strategy for enhancing the low voltage ride-through capability in wind energy conversion systems by integrating phasor measurement units, Type-III wind turbine systems, and flexible AC transmission systems devices. The research focuses on double fed induction generators-based wind turbines, which constitute a significant portion of wind energy systems but face challenges in maintaining grid stability during voltage sags. As wind turbines are directly connected to the …
Published in International Journal of Electrical Power System and Technology · Vol. 10, Issue 2, 2024 · pp. 15–40 Read article
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Tools and Concepts for Building A Collaborative Project Discovery and Development Platform: A Literature Review
Abstract: Collaborative project platforms have become indispensable in modern project management, especially with the rise of remote work, accentuated by the COVID-19 pandemic. This literature review synthesizes recent studies to explore the dynamics of collaborative project platforms, focusing on tool choices, usage patterns, and challenges. Organizations need to be ready to take on the obstacles that come with implementing projects. This study collects information on the objectives and issues faced by …
Published in International Journal of Digital Communication and Analog Signals · Vol. 10, Issue 1, 2024 · pp. 13–18 Read article
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Emission Control Technologies for Reduction of NOx and Particulate Matter from Automotive Diesel Engines
Abstract: In consequence of their efficiency and torque, diesel engines have long been valued, especially for heavy-duty applications. But worries about their emissions—especially those of nitrogen oxides (NOx) and particulate matter (PM)—have prompted stricter laws all around the world. Modern emission control technologies for lowering NOx and PM emissions from automotive diesel engines are reviewed in this paper. There is discussion of several methods, such as diesel particulate filters (DPF), selective …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 1, 2024 · pp. 1–6 Read article
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A New Way Thinking –storm Water Management
Abstract: The essential importance of improved stormwater management for urban areas, irrigation, industrial, residential, and livestock consumption on a worldwide scale cannot be overstated. In addition to going through the several ways to reuse and treat storm water. This study also emphasizes theutilization of modern storm water reuse technology to decrease the water deficit. Urban runoff volumes and flow maxima are projected to rise in the future because to the impacts …
Published in International Journal of Town Planning and Management · Vol. 9, Issue 1, 2023 · pp. 9–15 Read article
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In silico evaluation for the repurposing of antiviral drugs towards multiple targets of monkey pox viral disease
Abstract: Objective: Monkeypox is a growing public health problem. The disease is caused by the monkeypox virus. The latest epidemic has been linked to previously unknown mutations and variations. Tecovirimat is a poxvirus medication that has been licenced by the US Food and Drug Administration (FDA). Otherwise, there is little pharmacopoeia and scientific interest inmonkeypox. Computational screening and molecular interactions were used in this work to investigate the possible repurposing of …
Published in International Journal of Animal Biotechnology and Applications · Vol. 9, Issue 1, 2023 · pp. 22–32 Read article
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Agronomy of Rice Husks
Abstract: Rice husk and hull is the waste material of rice mill. These have been hard, fibrous and abraded capabilities. Bio active and biodegradable rice husk/hull have been studied to claim remaining form by firing at scaled opts of amorphous and crystal forms of silica. Metallic constitutive like iron, manganese, sodium, potassium, lead, copper have suggestive towards route to subscribe purest form after firing. Preparations out of raw forms have subjectively …
Published in International Journal of Agrochemistry · Vol. 6, Issue 1, 2020 · pp. 52–57 Read article
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Development and Validation of a Reversed-Phase HPLC Method for the Simultaneous Determination of Telmisartan and Its Related Compound B (Positional Isomers) in the Bulk Drug
Abstract: A simple, selective, accurate, precise and linear RP-HPLC method was developed and validation for Simultaneous determination of Telmisartan and its related Compound B 4ʹ-[(1,7-Dimethyl-2'-propyl[2,5'-bi-1H-benzimidazol]-1'-yl)methyl][1,1'-biphenyl]-2-carboxylic acid; 4'-[(1,7'-dimethyl-2'-propyl-1H,1'H-2,5'-bibenzo[d]imidazol-1'-yl)methyl]biphenyl-2-carboxylic acid; was accomplished in the bulk drug and synthesis for drug and a tablet formulation using a Reversed Phase High Performance liquid chromatography method with UV detection separation was achieved on Inertsil ODS-3V column (150 × 4.6 mm, 5 μm) (GL Science) as stationary …
Published in International Journal of Analytical and Applied Chemistry · Vol. 1, Issue 2, 2015 · pp. 12–23 Read article
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Nucleotides from radio-activated wastes
Abstract: AbstractThis article summarizes some formatives over waste generation in atomic reactors. Sponge or foam ceramics-in-glasses are used to entrap waste radio-nuclear products to dispose-in-pose scripture for other forms. Filtering has well known method to separate solid radio-in-nuclide forms from liquids even though inertia modes of resisting method has suggestive approaches to activate separation of particles by mass from sensing systems. Analysis of wastes has showed either ceramic particulates or particle …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 2, 2020 · pp. 1–5 Read article
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Fluorescence Detection Measurement of Quinine Sulphate Concentration
Abstract: For investigative study and analytical scientific applications, fluorescence spectroscopy analysis is a fantastic instrument. In additional to mineralogy, fluorescent labelling, sensors, and forensics applications, it is often utilised in biological, chemical, pharmaceutical, and medicinal applications. Additionally, it is employed for environmental monitoring, laser-induced chlorophyll fluorescence for agricultural yield evaluations, and the detection of proteins, organic substances, oils, and dyes. Quinine sulphate at a concentration of 10-5 M in 1 M …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 1, 2022 · pp. 25–29 Read article
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Investigation on Stability Analysis of Polanga oil Methyl Ester
Abstract: Biodiesel is a renewable alternative fuel and consists of mono-alkyl esters of the fatty acids. One of the major technical problems associated with the biodiesel is its storage stability and susceptibility to oxidation because of its chemical nature. This nature of the biodiesel is due to unsaturated fatty acid chains in its molecular structure. Also, the presence of the double bond in the molecule of the biodiesel produces a high …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 1, 2016 · pp. 16–23 Read article
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AN OVERVIEW OF OPERATION SYSTEM ORDER FOR DC- DC CONVERTER USING PULSE- WIDTH MODULATION
Abstract: To achieve the continuous power transmission, the behavior of dc-dc converter using pulse width modulation technique need to be analyzed in different operation modes. In this paper, review of operation system order for dc-dc converter using PWM that controls the power flow path between the source, load and the battery was done. The generator voltage, input frequency and loads demand with several operating states and control strategies are reviewed. The …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 38–44 Read article