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1972 articles for “4-dioxopyrimidine-5-carbonitrile” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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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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Effect of Thermal Conditions on Microstructure and Mechanical Properties of AA5083 Processed by Equal Channel Angular Pressing
Abstract: A commercial AA5083 with an initial grain size of 210 μm was given an ultrafine-grained structure using the equal channel angular pressing (ECAP) technique under die design as patented. The identical sample underwent two successful passes through the die at 473 K, with each passage causing the sample to rotate 90° along its own longitudinal axis. After just one pressing, the microstructure was comparatively homogeneous. It was made up of …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 1, 2026 · pp. 49–64 Read article
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Polymer Encapsulants for Photovoltaic Modules: Electrical Insulation Performance and Long-Term Durability under Accelerated UV Exposure
Abstract: Influence on the reliability and service life of PV modules is a major issue, which is influenced by the encapsulant degradation in long-term exposure to the sun's ultraviolet (UV) radiation. A systematic accelerated UV aging study of Ethylene Vinyl Acetate (EVA), Polyolefin Elastomer (POE), and Polyvinyl Butyral (PVB) films under IEC 61215-2:2021 specified test chamber conditions of Q-UV is conducted. The material properties were tested at various exposure intervals including …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 384–408 Read article
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Polymer Composite-Enabled UAV Platform for Edge AI-Based Precision Agriculture: A System-Level Evaluation
Abstract: This study investigates the system-level role of commercially available polymer composite materials in enabling lightweight and energy-efficient unmanned aerial vehicle (UAV) platforms integrated with edge artificial intelligence for real-time agricultural monitoring. Rather than developing or experimentally characterizing new composite materials, the work evaluates fiber-reinforced polymer (FRP) composites and epoxy-based laminates as enabling structural components whose established properties support UAV performance in precision agriculture. Their high strength-to-weight ratio, corrosion resistance, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 218–240 Read article
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Enhanced Mechanical Properties of AZ31 Magnesium Alloy Composite Reinforced with Carbon Nanotubes and Nano hydroxyapatite
Abstract: Magnesium alloys represent a novel category of biodegradable materials, offering numerous advantages in addressing the limitations associated with conventional biomedical materials. Magnesium-based metallic biomaterials offer a promising solution for fixing fractures, ensuring effective treatment without the inconvenience of subsequent implant removal procedures. In the present work, AZ31 Mg-alloy was chosen as the base material. Five specimens were meticulously fabricated, each varying in weight percentages of reinforcement materials: 0wt%, 0.5wt%, 1wt%, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 206–217 Read article
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Chlorophyll-Mimicking Ti₃C₂Tₓ MXene-Conjugated Polymer Nanocomposites: Nature-Inspired Exciton Funneling Architecture for Ultrahigh Photon-to-Electron Conversion in Organic Solar Cells
Abstract: Green plant photosynthetic machinery is one of the most efficient natural systems for harvesting solar energy and converting it into useable electronic charge. Specifically, chlorophyll molecules in the Light-Harvesting Complex II (LHC-II) achieve nearly unity quantum yield via a well-organized Förster Resonance Energy Transfer (FRET) mechanism that enables excitons to migrate towards reaction centers. This study presents a bio-inspired nanocomposite architecture using two-dimensional Ti₃C₂Tₓ MXene nanosheets functionalized with chlorophyll-mimicking porphyrin …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 114–130 Read article
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A Study to Assess the Effectiveness of Structured Teaching Program on Knowledge Regarding Breastfeeding Positioning Among Postnatal Mothers in Selected Community Areas in Kanpur
Abstract: Breastfeeding plays a crucial role in promoting infant health by providing complete nutrition, enhancing immunity, and strengthening maternal–infant bonding. Despite its benefits, many postnatal mothers experience challenges, such as nipple pain, breast engorgement, fatigue, and ineffective feeding, often due to improper breastfeeding positioning and poor latching techniques. Limited awareness and lack of structured education further contribute to these difficulties. Educating postnatal mothers on correct breastfeeding positioning is, therefore, essential to …
Published in International Journal of Women's Health Nursing And Practices · Vol. 4, Issue 1, 2026 · pp. 1–23 Read article
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ASSESSING OF FOREST STRUCTURE USING EARTH OBSERVATION DATA: ACASE STUDY IN MUNESSA FOREST, OROMIA REGION, ETHIOPIA
Abstract: Forest structure is essential for estimating forest-related carbon emissions, analyzing forest degradation, and quantifying the effectiveness of forest restoration initiatives. However, forest structure quantification is only limited to the specific area of interest without considering the whole forest coverage. Remote sensing data can easily deliver a large area to assess forest structure. Therefore, this study aims to assess forest structure of Munessa Natural Forest by integrating satellite based light detection …
Published in International Journal of Land Read article
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Effect of Surface Modification on Properties of Kevlar/Epoxy Polymer Composites
Abstract: In this study, a high-performance Kevlar/epoxy polymer composite was prepared using a hand lay-up technique. The Kevlar fiber was treated with calcium chloride/ethanol solution (CaCl2/EtOH) to enhance the interfacial interaction between the fiber and the epoxy matrix. The optimization of fiber surface treatment and fiber content for the best tensile strength (TS) of Kevlar/epoxy polymer composite was achieved using Box-Behnken design (BBD) through response surface methodology (RSM). Three parameters: CaCl2 …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 35–46 Read article
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Demonstration and Evaluation of Improved Chickens under Farmers’ Management Conditions at Godoro Sub-Watershed, Gerese District
Abstract: The study commenced with the objective of demonstration and evaluation of an improved chicken breed's performance under farmers’ management conditions in Bula Kebele, Gerese district of Gamo zone. A total of 21 participant households were selected purposely based on their experience and willingness to construct a chicken house, covering chicken-rearing costs, and recording the required data. Training on chicken husbandry, healthcare, feeds and feeding systems was provided for the participants, …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 14, Issue 3, 2025 · pp. 61–69 Read article
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Numerical and Experimental Investigation of AlHE30 for Rectangular Finned Cooking Vessel
Abstract: AbstractFins are basically extended surface, which is used to increase the heat transfer rate, this is basically a secondary surface mounted on primary surface to augment heat transfer from it. A numerical study using ANSYS were conducted to optimize fin shape based on base temperature and maximize the heat transfer across the cooking vessel. By investigating fin of (AlHE30) material were conducted experiments the fin of diameter 14 and 195 …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 28–36 Read article
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Texture Study on 316L Weldments after Heat Treatments
Abstract: AbstractAustenitic stainless steels are regularly used as components in many parts and vessels work in the ocean. Also, 316L stainless steel (SS) is used in nuclear reactors, located near sea. 316L SS base metal (BM) and weld metal (WM) are aged at 450°C and at 350°C for 6000 hours and texture analysis using electron backscatter diffraction (EBSD) revealed that the texture is independent of delta-ferrite content. Inverse Pole Figures (IPF) …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
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Development and Evaluation of Physical and Mechanical Properties on Talc Filled Sisal/Polyester Composites
Abstract: In recent years, research focusing on the use of natural fiber-reinforced composites has been increased and has opened up further industrial possibilities due to advantages of low density, low cost, biodegradability, abundance and renewability proffered by natural fibers. In this research, randomly oriented sisal fiber and talc filler were used to reinforce polyester matrix to produce composites of 3 mm thickness. The composites were fabricated by hand laying technique. Composite …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 2, 2018 · pp. 27–35 Read article
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DNA Binding and Cleavage Studies of Cobalt Complexes Containing Bioactive Mixed Ligands
Abstract: The complexes containing bioactive ligand of the type [Co(L1L2)] (PF6)2 complex (1) (where L1=1,10-phenanthroline and L2 = N,N-dimethyl-2-{5-[(pyrrolidin-1-ylsulfonyl)methyl]-1H-indol-3-yl}ethanamine (almotriptan) in 1:1 molar ratio of ligands) and [Co(L1L3L4)] (PF6)2 complex (2) (where L3=4H-1,2,4-triazol-4-amine, L4=1H-benzimidazole-2-thiol and the ligands are in the ratio 1:1:1, were synthesized and characterized. The DNA binding property of the complexes with calf thymus DNA has been investigated using absorption spectra, viscosity measurements and thermal denaturation experiments. The intrinsic …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 1, 2014 · pp. 49–56 Read article
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The Application of Buckingham Pi Theorem to Monitor Procurement Service Delivery: A Case Study of Walnut Wood
Abstract: The aim of this research is to demonstrate the application of Buckingham theorem to monitor procurement delivery of Walnut wood. In this investigation, wood material of walnut wood density, constant area, diameter and velocity was used to monitor, predict and simulate the weight, delivery time and tensile strength on the truck. The walnut wood material was investigated in terms of delivery time, tensile strength and the effect on the truck …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 1, 2023 · pp. 54–63 Read article
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Performance and Emission Analysis of Four Stroke Single Cylinder Diesel Engine Operated on Cotton Seed Oil Methyl Ester
Abstract: The declining fuel reserves and escalating prices of diesel fuel have put forth challenges for researcher to find significant substitute for diesel. Biodiesel prepared from vegetable oil is one of the options to diesel. In present work biodiesel prepared from cotton seed oil is tested in single cylinder diesel engine. The cotton seed oil production of India is about 1190 MT in the year 2012. This shows that India has …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 5–14 Read article
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Design and Construction of Solar Still-Solar Water Heater Hybrid for Small Scale Application
Abstract: AbstractSolar still-solar water heater hybrid for small scale application has been designed and constructed and tested in this study. The construction began with designing and developing isolated units of single-slope solar still, solar water heater and water storage tank separately. These were then coupled together to form the hybrid system. To test its efficacy, the hybrid was subjected to perform distillation alongside a conventional type single-slope solar still of the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 11–16 Read article
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Effect of Particle Size Mix Ratio of Adsorbent for AGO and PMS Adsorption: The Monitoring of Hydrocarbon Utilizing Bacteria in Water Media
Abstract: The effect of particle size mix ratio of clay and agro-based material of Plantain Ogoni Red (POR), Banana Native (BN), Banana Ogoni Red (BOR) and Plantain Agbagba 1 was monitored in AGO and PMS adsorption process based on formulated adsorbents. The characteristics of hydrocarbon utilizing bacteria was monitored in both salt and fresh wager media upon the effect of particle size and contaminants medium. Different particle size and contaminant medium. …
Published in Journal of Catalyst & Catalysis · Vol. 10, Issue 3, 2023 · pp. 08–16 Read article
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Strength Evaluation and Reveal the Reserved Strength of Confined RC Circular Column under Static Load
Abstract: AbstractThe strength of RC circular column is evaluated as per IS 456:2000 guideline and design charts of SP16. The secondary steel in the form of lateral ties or helical reinforcement is provided to suit the requirements of IS 456:2000 and IS 13920:2016. The secondary steel provides the confinement to the concrete and imparts ductility to the column. The strength of confined concrete is found more than the strength of 150 …
Published in Journal of Construction Engineering, Technology & Management · Vol. 8, Issue 1, 2018 · pp. 7–14 Read article
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A Study on Stress Block Parameters
Abstract: The compressive stress distribution in concrete, when mathematically modeled, can be defined by characteristic parameters known as stress block parameters. There are three such parameters, namely, shape factor, k1, depth factor, k2, and maximum stress factor, k3. There are various shapes of stress blocks, like parabolic, equivalent rectangular, equivalent triangular, and rectangular-parabolic. Various standard codes have adopted an equivalent rectangular stress block, whereas the Indian code has adopted rectangular-parabolic stress …
Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 3, 2019 · pp. 35–42 Read article