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439 articles for “low cost”
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Import Substitute for Production of Ultrapure Water by Membrane Integrated Process for Medical and Biotechnological Applications
Abstract: The present invention discloses an inexpensive import substitute compact design of low-cost membrane process for the production of ultrapure water for dialysis and medical applications in different fields like pathological laboratories, biochemical analysis, sterilization and sanitation, dental and optical lens cleansers. The ultrapure water of demineralization (DM) process is related to the cascaded high- flux and high-selective membrane system for hyper permeation which is operated under the pressure of 3-7 …
Published in Research and Reviews : A Journal of Biotechnology Read article
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Nutritional Status, Bioactive Properties & Therapeutic Efficacy of Omega-3 Polyunsaturated Fatty Acids Obtained by Green Synthetic Routes
Abstract: Polyunsaturated fatty acids (PUFAs), particularly omega-3 (n-3) fatty acids like eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are crucial for human health. They support structural brain development, visual acuity, and cardiovascular function, while also exhibiting potent anti-inflammatory, antioxidant, and antimicrobial properties. Historically, marine fish oil has been the primary dietary source of these essential fatty acids. However, escalating concerns regarding ecological environmental impacts, the oceanic bioaccumulation of heavy metal contaminants, …
Published in International Journal of Nutritions · Vol. 3, Issue 2, 2026 Read article
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Investigations of A Solar Dryer With Thermal Storage
Abstract: This study presents the design, building, and performance evaluation of a low-cost mixed-mode natural convection solar cabinet dryer in conjunction with a latent heat thermal energy storage system. The work's goal is to reduce post-harvest losses in rural and semi-urban areas by offering an effective and reasonably priced method of preserving agricultural goods. The dryer is made out of a transparent polycarbonate lid to allow for solar heat gain, an …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 13, Issue 1, 2026 Read article
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Advanced Liquid Crystal Polymer Substrate for Flexible Antenna Design
Abstract: A type of thermoplastic polymers known as liquid crystal polymers (LCPs) is frequently used to package millimeter (mm)-wave, microwave, and radio frequency (RF) integrated circuits that operate at frequencies as high as 60GHz. LCPs are of prospective relevance as packaging material for advanced circuits at mm-wave frequencies due to their appealing electrical, thermal, and mechanical qualities and comparatively low cost. Flexible and conformal antennas are made possible by LCP's exceptional …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 233–245 Read article
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Mystery of Grass milk: A Deeper Dive into Quality, Quantity and Economics of Grass-milk in Dairy Cows
Abstract: Consumers perceive ‘grass-fed milk’ as healthier than conventional ones since grass-fed milk contains higher levels of beneficial fatty acids and lower levels of omega-6. The study highlights the nutritional benefits of feeding green grass, in terms of quality, quantity, and farm economics emphasizing its specific influence on the fatty acid profile of milk, including enrichment of omega-3 fatty acids and conjugated linoleic acids. It also delves into the environmental benefits …
Published in International Journal of Nutritions · Vol. 2, Issue 2, 2025 Read article
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Fast Charging of Lithium-Ion Batteries Using a Full-Bridge Rectifier and Buck Converter with SOC Tracking
Abstract: This paper presents a simplified and cost-effective approach to electric vehicle (EV) fast charging by replacing the conventional neutral point clamped (NPC) converter with a full-bridge diode rectifier followed by a buck converter. The proposed topology is designed to deliver a regulated 80 V DC from a three-phase AC grid to charge a lithium-ion battery at a controlled current of 3 A. The converter design includes a three-phase diode bridge …
Published in Trends in Electrical Engineering · Vol. 15, Issue 2, 2025 · pp. 18–25 Read article
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Polymers In Low-Resource Biomedical Innovation: Maker Labs, DIY Devices and Ethics
Abstract: The low-cost biomedical devices have been prototyped and sometimes put into practice by maker laboratories and community "DIY" (Do-It-Yourself maker) innovators due to the fast-growing availability of polymer-based fabrication (desktop 3D printing, laser cutting, and simple molding). Nowadays, polymers such as PLA, PETG, TPU, and PEEK are used in a wide range of applications, including surgical guides and anatomical models, as well as assistive technology and diagnostic housings. Such innovations …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 108–119 Read article
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A Review on Solar Multilevel Inverter for the Production of Free Energy Due to the Structure with Long-life Feature
Abstract: Multilevel inverters play a major role in medium voltage, high power and renewable applications. It is also used in certain applications where high switching frequency, and high output voltage gain are required. The switching transient period of a MOSFET should be minimal because a high dv/dt rate could result in permanent damage to the MOSFET. The harmonics present could cause many problems and so it has to be minimized. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 13–18 Read article
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Wear Performance of Cylindrical Shaped Alumina Nanoparticles Filled Epoxy Composite
Abstract: Low cost high specific strength epoxy LY 556 and alumina nano filler is utilized in current research for developing a epoxy composite. A liquid dispersion method was adopted for fabricating epoxy alumina composite having 0.50 wt% of alumina reinforcement. For uniform and homogenous dispersion of reinforcement, ultra-sonification of 120 W is adopted. To study the effect of particle behavior, unfilled epoxy and 0.5 wt.% cylindrical alumina oxide filled epoxy composite …
Published in Journal of Polymer & Composites · Vol. 12, Issue 5, 2024 · pp. 94–100 Read article
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Bioremediation of Crude Oil-Contaminated Loamy Soil Using Plantain (Musa Paradisiaca) Stem Waste as a Biostimulant
Abstract: Crude oil contamination of soil is a pressing environmental challenge in oil-producing regions, especially in the Niger Delta of Nigeria. It degrades soil fertility, disrupts microbial ecosystems, and poses long-term ecological and health risks. Traditional remediation methods are often cost- prohibitive and environmentally intrusive, prompting the search for sustainable alternatives. This study investigates the potential of plantain (Musa paradisiaca) stem waste – a readily available agricultural byproduct – as a …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 1, 2026 · pp. 1–11 Read article
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Solar Panel Maintenance and Prevention System
Abstract: Solar energy has emerged as a sustainable and efficient alternative to conventional energy sources. However, maintaining solar panels is crucial to ensure optimal performance and longevity. Accumulation of dust, dirt, and environmental debris can significantly reduce energy efficiency, leading to increased operational costs and potential system failures. To overcome this issue, we suggest an IoT- based Solar Panel Maintenance and Prevention System that facilitates automated cleaning and preventive maintenance via …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 16, Issue 2, 2025 · pp. 29–34 Read article
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High Frequency Design Approach and Feasibility Study of HBT Based W-band (90.0 GHz-100.0 GHz) Amplifier using 130 nm SiGe Based BiCMOS Technology
Abstract: This paper present high frequency design approach and feasibility study of HBT (Hetero Junction Bipolar Transistor) based two-stage cascode amplifiers at W-band (90.0 GHz-100.0 GHz). The proposed amplifier has design using 130 nm SiGe based BiCMOS technology. This paper used low cost technology for designing of w-band amplifier and this is novelty of this paper. The schematic design and feasibility study has been carried out using Cadence software. The selection …
Published in International Journal of Digital Communication and Analog Signals Read article
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Design and Simulation of Forging Die Towards Improving Life of Closed Die
Abstract: Forging is the metal forming process which is used for forming complex shaped component with geometrical accuracy. More than fifty percent of the forgings are processed through this way. Forged components required in many engineering sectors, most of them in the automotive sector. The majority of the safety critical component and load bearing structural components are process through it. By using forging process production of complex component is faster with …
Published in Journal of VLSI Design Tools and Technology Read article
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Mechanical Properties Investigation of Green Waste Composite Material
Abstract: Widespread accessibility and abundance of natural fibres are driving forces behind renewed focus on eco-friendly solutions. Researchers have recently begun to focus on natural fibres as reinforcement due to their many advantages over more conventional materials. Natural fibre is an attractive ecological and biodegradable alternative to most common glass fibre, synthetic reinforcement, because of its high specific and low cost mechanical capabilities. India is home to a wealth of untapped …
Published in Journal of Polymer & Composites · Vol. 11, Issue 4, 2023 · pp. 28–36 Read article
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Topology Optimization of Press Tools for Additive Manufacturing: Reducing Manufacturing Time
Abstract: This research paper presents a topology optimization study of a press tool consisting of a punch and a die, with the aim of optimizing the press tool topology to reduce material usage, and manufacturing time while maintaining necessary strength. The tools will be manufactured using additive manufacturing technology with Polylactic Acid (PLA) material. The Additive Manufacturing method can be used to make prototypes of press tools in the development stages. …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 40–56 Read article
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Wireless EV Charging Station
Abstract: Higher standards for the ease, safety, and dependability of electric vehicle charging have been proposed in recent years due to the fast development of the electrical vehicle (EV) of the new energy business. Resonant inductive coupling is used to charge wirelessly transmitted power. With the aid of Arduino, the transformer may be reconfigured to transfer energy with less energy loss and less strain on the primary circuit. With minimal energy …
Published in International Journal of Electronics Automation · Vol. 1, Issue 1, 2023 · pp. 30–37 Read article
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Bioethanol and Beyond: A Comprehensive Review on Sustainable Biofuels for Global Energy Demands and Environmental Conservation
Abstract: This comprehensive review explores the concept of "biofuels," specifically focusing on energy-enriched chemicals generated through biological processes or derived from the biomass of living organisms, including microalgae, plants, and bacteria. As the global population continues to increase, there is a growing demand for more energy supplies to enhance the quality of life. Biofuels, harnessed from various sources such as sugar, starch, and organic waste, have emerged as potential solutions to …
Published in Recent Trends in Infectious Diseases · Vol. 1, Issue 2, 2024 · pp. 1–9 Read article
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Effect of Nebulization With 3% Hypertonic Saline for Airway Clearance on Mechanically Ventilated Patients Admitted in ICUs of Pt. B.D. Sharma, PGIMS, Rohtak
Abstract: Background of the Study: The ability to breathe artificially prolongs life in many situations. Patients requiring mechanical breathing in the intensive care unit are more likely to have complications and even death due to a variety of interconnected causes. As a result, it became critical to rapidly ventilate in the safest and most efficient manner available. Intubated patients have benefited from nebulized suctioning, as it improves lung clearance and decreases …
Published in International Journal of Emergency and Trauma Nursing and Practices · Vol. 1, Issue 2, 2023 · pp. 20–27 Read article
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Green synthesis of Ag-Fe2O3-CuO-PANI nanocomposite and its application as an Apple Vinegar sensor
Abstract: Green synthesis of nanoparticles is inexpensive and environmentally safe, herein we report green approach for the synthesis of Ag, Fe2O3, CuO nanoparticles by using Asparagus Racemosus plant to detect carboxylate vapours. Synthesized Ag, Fe2O3, CuO nanoparticles were taken in 1:1:1 ratio and PANI (polyaniline) was added in ratio 5:1 to form Ag-Fe2O3-CuO–PANI nanocomposite. Synthesized Ag-Fe2O3-CuO-PANI were characterized by XRD, FESEM and FTIR whose size was in the range of 16–60 …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 41–53 Read article
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Experimental Analysis of Solar Dryer
Abstract: Agro-commodities are most commonly dried in open air. For easy usage, low cost dryer in clear and rainy day was the need by many farmers. Present study was intended to study, fabricate and test the solar dryer for drying fruits and vegetables. A model was designed for drying chillies and potatoes by direct solar energy in line with auxiliary drying chamber. Proposed method of drying is comparatively fast and clean. …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 1, 2024 · pp. 9–17 Read article