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744 articles for “Densities”
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STUDIES ON MECHANICAL, THERMAL AND PERMEATION PROPERTIES OF HDPE (BLOW GRADE) WITH MICROSILICA CLAY
Abstract: HDPE is widely used in container applications. The mechanical properties and barrier properties can be further improved by the addition of reinforcements like nanoclays. But, however the cost of nanoclays are higher about Rs.5000 – 6000/kg whereas micro silica cost is economical about Rs.450-1000/kg. Hence we used micro silica of 270nm particle size in this project with HDPE blow grade. HDPE (High density polyethylene) was melt blended with micro silica …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 41–53 Read article
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Synthesis and Characterization of Al-Mg-Si Alloy based Hybrid Composite Reinforced with SiC and Graphite
Abstract: The present work is carried out to investigate the mechanical properties of Al-Mg-Si alloy matrix based hybrid metal matrix composites (MMCs) using stir casting method owing to its popularity and large scale productions. SiC and graphite reinforcements were added each with 1%, 2%, 3% and 4% respectively to fabricate four composites specimens. X-ray diffractometer and scanning electron microscope were used for phase identification and microstructure characterization (SEM). Density, hardness, compressive …
Published in Journal of Polymer & Composites · Vol. 10, Issue 3, 2022 · pp. 9–19 Read article
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Effect of Length and Tenor of the Introduction of Sansevieria cylindrica Fibers on the Mechanical Performance of Natural Fiber Composites
Abstract: The substitution of synthetic fillers, such as carbon black, with biobased ones in natural rubber (NR) is a trend of interest in view of increased sustainability and exploitation of agroforest waste in the materials sector. In this work, NR was filled with short fibers extracted from Sansevieria cylindrica (SC) leaves of various length (10, 20, 30, or 40 mm) and in different amounts (3, 6, or 10 g per 100 …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 94–101 Read article
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Performance Improvement of Nano Field Effect Transistor Based on Zinc Oxide Semiconducting Materials – a Critical Analysis
Abstract: New semiconductor materials and new shapes for contemporary nanostructured semiconductor devices, like nanowires, have been researched as a result of advancements in transistor technology. Because of their unique electrical, photonic, and sensing capabilities, nanowires (NWs) constructed of various semiconductor material systems (gallium arsenide, zinc oxide, etc.) have been the subject of intense research over the past 20 years. Due to its distinctive properties, including high electron mobility, high crystalline quality, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 99–107 Read article
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Theoretical Prediction of Maximum Number of Methane Molecule Accommodation in Unit Cages of S-I Clathrate Structure
Abstract: Density Functional Theory (DFT) based simulations have been performed to determine maximum possible number of methane molecule accommodation in unit cages of methane hydrate structure-I (S-I). Interaction energy, encapsulation energy and incremental encapsulation energy are calculated using B3LYP functional and 6-31+G(d) basis set. Nuclear magnetic resonance and Raman spectroscopy of one methane encapsulated are predicted at B3LYP/6-31G(d) level for 51262 hydrate cage. Maximum one methane molecule accommodation both in 512 …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 116–122 Read article
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Production and Characterization of Essential oil using the Solvent Extraction Method from Brassica nigra seeds
Abstract: The purpose of this study is the Production, Optimization and Characterization of oil from Brassica nigra seeds using the Solvent Extraction Method. The result shows no difference from the seed oil extract from the mustard plants which grows in other parts of the world. This is to create awareness to utilize the Brassica nigra seed locally grown, as a potential source of edible oil for health benefit, such as additives …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 5–20 Read article
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Comparison of Hard Wood Functional Parameters on the Deliverability using Buckingham Pi Theorem: The Concept of Procurement
Abstract: This investigation was able to address the effect of wood density and weight on the tensile strength and deliverability of the truck performance and as medium to forecast the procurement plan for cost optimization. This was achieved using the Buckingham Pi Theorem by considering the necessary constrain factors as presented in the development of the model. Indeed, the study demonstrates the significance of wood density and wood weight on truck …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 19–27 Read article
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Voltage Sag Mitigation Using DVR and Ultra Capacitor
Abstract: Due to the rising integration of renewable energy sources into the power system, power quality issues have recently become more significant. Voltage sags and swells are among the biggest issues with a power system, and a lot of research has been done to try to solve these issues. Equipment for power conditioning can enhance the quality of the power. Dynamic voltage restorers (DVR) are used to shield sensitive loads from …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 21–31 Read article
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Experimental Investigation on Mechanical Properties of Concrete Replacing of Steel Slag as Coarse Aggregate
Abstract: The basic objective of this study was to identify alternative source of good quality aggregate which is depleting very fast due to the fast pace of construction activities. This paper describes the optimum level of replacement of Energy Optimized Furnace (EOF) steel slag by weight of coarse aggregate for a mix proportion of M20 grade concrete to find out the optimum ratio of steel slag. Civil Engineers have been challenged …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 44–49 Read article
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Effects of Weight Fractions on Properties of Aluminium-Fly Ash Metal Matrix Composites
Abstract: With particles of fly ash as the particulate addition, the properties of pure Al can be greatly improved. The incorporation of fly ash brings significant changes in some of its core properties like hardness, density, stiffness, strength, wear resistance. A comparison of the mechanical properties of pure Al have been done with three sets of Al-fly ash composites containing 6, 8 and 10% by weight fly ash which are manufactured …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 3, Issue 3, 2016 · pp. 44–48 Read article
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FPGA Implementation of LDPC Codes
Abstract: AbstractLow Density Parity Check (LDPC) are the linear error correction codes for amendment of mistakes, a technique of transmitting the messages over the noisy channel. With lieu- Shannon’s controlled implementation and typically parallel execution of plan, low-density parity check codes are mainly executed at enquire and well-designed area of applications. Bipartite graph is used for development of LDPC codes. LDPC being limit stirring in the direction of codes which means …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 5, Issue 1, 2018 · pp. 21–28 Read article
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Designing of GaAs Based Resonant Tunneling Diode and Nano Scale Applications with Considering NEGF
Abstract: Present situation of eletronic area in the world required small devices as well as low power dissipation and ultra high speed application. At this moment the presence of resonant tunneling diode can over come this type of problem and take a big role in nanoscale digital and analog applications.In this researh article is to demonestrated effect of asymmetric barrier with respect to symmetric barrier and digital inverter and THz analog …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 1, 2015 · pp. 1–18 Read article
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Site Suitability Analysis for Artificial Recharge of Groundwater using GIS and Remote Sensing Techniques: A Study of Mandya District, Karnataka, India
Abstract: The present work is conducted to identify the artificial recharge sites for recharging the groundwater level using GIS and Remote sensing techniques. The scarcity of ground water is keep on increasing day by day due to anthropogenic activities includes decrease in land cover and increase in land use, but the climatic conditions are also severely affected and results in decrease in rainfall and increase in land surface temperature. Most of …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 10–22 Read article
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Feasibility Studies on Cement Mortar Replaced with Ceramic Tile Waste as Secondary Binder
Abstract: This paper presents the results of experimental works focused on replacement of ceramic waste materials with cement in the production of cement mortar. The aim of this research work is to find the optimum percentage replacement of cement by ceramic tile waste in percentage replacement (5 to 25, 50 and 100%) mortar mixes. The ceramic waste tiles are mechanically crushed down ultrafine ceramic waste (UCW) powder passing 600 μ and …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 68–75 Read article
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Liquefaction Behavior of Clean Sand for Various Sample Sizes Using Triaxial Tests
Abstract: A total of 54 isotropically consolidated un-drained triaxial compression tests on various sample sizes were conducted to study the effect of sample size on liquefaction behavior of clean sand. Specimens were prepared using moist placement and dry deposition methods with different initial relative densities and tested for different confining pressures. It was observed that as the sample size increases, deviator stress also increases. Peak value of deviator stress increased as …
Published in Recent Trends in Civil Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 22–29 Read article
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Analysis of Three Types of Quartzite as Coarse Aggregate Material and their Impact on Compressive Strength on Concrete
Abstract: Aggregates are the most important constituents of concrete. They give body to the concrete, reduce shrinkage, enhance strength and effect economy. The quartzite rock available in Delhi is a prominent geological material available in the entire Aravali range. Most of the manufacturing of concrete is going on using quartzite as aggregate material. However, three different categories of quartzite have been classified on the basis of its colour composition namely greyish …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 1–8 Read article
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Comparison of Battery Technologies for Hybrid Electric and Plug-in Hybrid Electric Vehicles
Abstract: Although Electric Vehicles especially e-bikes were available in the market; it did not catch the attention of many for years. The main reason for this was their high cost and limited range between two consecutive full charges of the battery on board. However some of the modern battery technologies are promising in this direction. Lot of research is underway to fabricate battery with as high power and energy densities as …
Published in Trends in Electrical Engineering · Vol. 2, Issue 1-2-3, 2012 · pp. 1–10 Read article
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Improved Performance Characteristics of a Designed 1050 nm Bottom Emitting MQW VCSEL using Al0.25Ga0.22In0.53As/InP Materials
Abstract: AbstractIn this work, the design and performance characteristics of a bottom emitting Al0.25Ga0.22In0.53As/InP Multi-Quantum Well (MQW) Vertical-Cavity Surface-Emitting Lasers (VCSEL) have been presented for operation at a wavelength of 1050 nm. The transparency carrier density and bandgap energy of the QW and barrier materials are computed. An improved performance of the designed VCSEL has been obtained by selecting a material with high gain and lower transparency carrier density in the …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 3, 2013 · pp. 22–30 Read article
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FABRICATION AND COMPRESSIVE TEST ANALYSIS OF CARBON FIBRE REINFORCED NYLON
Abstract: AbstractThe aim of the paper is to study and investigate the effect of carbon fibers (T800), epoxy resin and hardener Tri Ethylene Tetra Amine (TETA) reinforced with nylon rod. There is a wrapping of carbon fiber done on the nylon rod which increases the compressive strength. It is found that compressive strength very with respect to variation of wrapping around nylon rod. The density of final material reduces as the …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 28–32 Read article
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PERFORMANCE STUDY ON SOIL STABILIZATION USING HIGHLY VULCANIZED RUBBER SHEET
Abstract: Roads are the major constructions. In India the road networks comprises of about 59,03,293 kilometers. The aim of this project is to replace the base course of the WBM with rubber and steel stacked mats. Over 1 million tonnes of rubber tyre wastes are produced in India and about 15 million tonnes of rubber tyre wastes are produced. In that about 60% of the rubber wastes are recycled. The reason …
Published in Trends in Transport Engineering and Applications · Vol. 9, Issue 1, 2022 Read article