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756 articles for “Matrix”
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Blind Separation of Instantaneous Mixtures of Sources Using Stochastic Calculus
Abstract: Stochastic calculus methods are used to estimate the Nonstationary components of a linear mixture. Each component in the mixture is assumed to follow a stochastic differential equation with some unknown parameters. The estimation of the stochastic process parameters and the estimation of the unknown amplitudes of the mixture matrix, through Girsanov theory, will generate a stochastic equation for each unknown process. Several examples are given, and a comparison to existing …
Published in Current Trends in Signal Processing · Vol. 2, Issue 1-3, 2012 · pp. 26–48 Read article
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Development of bio-based foam from Ximenia americana seed oil polyol: Studies on the effect of toluene diisocyanate (TDI) on some properties of the foam
Abstract: Polyurethane foam is a very important and valuable industrial product. In this study, polyol synthesized from Ximenia americana seed oil was used in the production of bio-based polyurethane foam. Different amounts (2mL, 4mL, 6mL, 8mL and 10mL) of toluene diisocyanate (TDI) were used in the formulation of the foams, and the effect of the varied amount of TDI was investigated by studying the foams’ properties such as the density, tensile …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 1, 2019 · pp. 5–11 Read article
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Nano Cellulose: A Bionano Material from Lignocellulosic Biomass
Abstract: In paper industry, nano technological advances are of great importance in targeting high quality, efficiency and market potential. Lignocellulosic biomass is a natural biopolymer with cellulose fibrils in a matrix of lignin and hemi cellulose. One of the most relevant nanomaterials of our paper industry is nano crystalline cellulose, a renewable, recyclable and abundant nano material obtained from lignocellulosic biomass. Currently the paper industry uses nanotechnology in two ways: to …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 2, 2015 · pp. 15–21 Read article
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Developments of Fiber-reinforced Plastics
Abstract: This article is a description of fiber-reinforced plastic to subject composite, where individual constitutions have been reinforced to develop better properties than individual materials. Fiber-reinforced composite materials are alternatives over solitary metals or alloys in terms of strength, stiffness, density, and low cost with improved sustenance. Differential behavior from composited formation has functionally upgraded after usage from the equivalent differential proportion of filler added. Or add-in addendum has been implicated …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 2, 2021 · pp. 1–9 Read article
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Dielectric Studies on Magneto-elastomer Composites Filled with Soft Ferrites
Abstract: Magneto-elastomer composites are flexible magnetic composites which can be synthesized by incorporating ferrites into elastomers. These composite materials are in par with their ceramic counter parts and are potential substitute for ferrites in various applications. Advantage of these materials is the processability and mouldability into desired shapes. Dielectric property of elastomers is modified with the incorporation of soft ferrites like nickel ferrite. They can be used as microwave absorbing materials. …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 1, 2022 · pp. 1–11 Read article
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Production of Polymer Composite using Thermoplastics, Sharp Sand and Sawdust: Mix Techniques
Abstract: This research work focuses on producing a polymer composite using a thermoplastic. PET is nonbiodegradable and contribute majorly to water and land pollution in this research work an attempt has been made to utilize PET waste plastic in manufacturing fibre-reinforced polymer composite by combining sawdust which is another waste product from woodwork operations and sand, a major component in construction, whose use is greatly threatening the ecosystem. The fibre-reinforced polymers …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 3, 2022 · pp. 21–29 Read article
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Fabrication and Properties of Recycled PET Reinforced Waste Cellulosic Fiber Composites
Abstract: The economic utilization of lignocellulose waste, which is now being explored, is one of the environmental problems confronting third-world nations. Waste cellulosic fiber (paper sludge, PS) composites will enable the cost of the composite to be reduced while allowing for the efficient use of a waste material that is presently burned or buried. Environmentally friendly composites made from PSreinforced recycled poly(ethylene terephthalate) (rPET) matrix with the addition of SEBS-g-MA as …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 1, 2023 · pp. 9–20 Read article
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Assessment of Potato Starch-Polyethylene Composites Biodegradability Caused by Pseudomonas Aeruginosa and Soil Burial
Abstract: Plastics are a vital portion of modern life that is used in our everyday lives such as food packaging, construction ingredients, insulating, and many more. Plastic is a synthetic or semi-synthetic ingredient that does not rust in the natural ambiance. Worldwide plastic production is more than 78 million tons per year and about half of it is dumped in a short period, leaving behind decades of waste and landfill (more …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 49–61 Read article
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Effect of Varying Surface Grinding Parameters for AISI 1018 Mild Steel by Taguchi based PCA
Abstract: The main purpose of this work is to study the effects of surface grinding parameters on AISI 1018 Mild steel work surface by using three process parameters like Wheel speed (WS), Table speed (TS) and Depth of cut (DOC). This work was conducted on surface grinding machine with model number HMT-P452. Taguchi’s L16 orthogonal array is used which takes sixteen experimental runs to achieve the design matrix of surface grinding …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 2, 2018 · pp. 5–14 Read article
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Preparation of High Density Polyethylene (HDPE) blended Lignocellulosic Composite
Abstract: AbstractHigh density polyethylene (HDPE) blended lignocellulosic bagasse composite are structural materials made from renewable resources. These materials are being researched and developed to replace less eco-friendly structural and non-structural materials used in the construction industry. The lignocellulosic-composites studied have the potential to be used for scaffolding, framework, flooring, walls and for many other applications within buildings, as well as for temporary construction. In this study, high density polyethylene (HDPE) blended …
Published in Journal of Catalyst & Catalysis · Vol. 6, Issue 1, 2019 · pp. 14–20 Read article
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Synthesis Effect of Natural/Chemical Blend Nanoparticles on Impact Strength of Sustainable Composite Material
Abstract: Synthesis effect of mixing two types of nanoparticles in the same matrix polyester based sustainable composite was studied in this article. The nanoparticles blend includes sunflower seeds and calcium carbonate with amount 1–3 wt.%. Results showed that the samples containing sunflower seed nanoparticles have high impact strength compared to the samples with calcium carbonate, and increases with increasing reinforcement ratio compared with sample having calcium carbonate nanoparticles. Keywords: Sustainable composite, …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Synthesis of Zeolite Y-Encapsulated Copper(II) Complexes with Aminobenzonitriles and Carbonitriles by Flexible Ligand Method
Abstract: Zeolite Y encapsulated copper(II) sulphate complexes with 2-, 3- and 4- aminobenzonitrile and carbonitrile have been prepared by flexible ligand synthesis method. Complexes are characterized by magnetic susceptibility, infra-red and electronic spectral techniques. The data clearly suggests the presence of metal complexes in zeolite matrix.
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 41–52 Read article
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Plant-Drive Natural Filler Filled Polypropylene Composites: Effects of Filler Treatment, Filler Content and Nanoclay on Properties
Abstract: In this study, PP was blended with nanoclay at three different loadings of 1, 3, and 5 wt%, while maleated polypropylene (PPM) was added at 5 wt%. The results showed that PP nanocomposites prepared at 5% PPM and 3% nanoclay showed optimum mechanical performance. In this research, untreated and chemically treated peanut shell flour (PSF) reinforced PP nanocomposites were prepared at four different loadings of 10, 20, 30, and 40 …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 2, 2022 · pp. 1–12 Read article
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Modern Biomaterials: Biologically Sensitive Hydrogel Materials
Abstract: Modern biomaterials and biological products are interacting at a more clearly defined interface. Hydrogels, a category of highly hydrated biomaterials, are significant. With interstitial voids that are up to 90% water by weight, hydrogels are made of elastic networks. They are created either physically or chemically by self-assembling building blocks that areeither created artificially or organically. Macromolecules in a range of structures, such as cross-linked polymers, entangled fibrillar networks, or …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 2, 2022 · pp. 26–30 Read article
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Methodology to Evaluate Technology in the Housing Market
Abstract: India is facing a huge shortage of housing for the urban population. As per the 2010 census, the lag in urban housing shortage is around 24.7 million. This huge shortage is a result of fast growing urbanization and high population growth in the last decade. About 99% of this shortage is in the EWS and LIG groups which contribute to nearly 25% of total housing requirement. To satisfy this huge …
Published in Journal of Construction Engineering, Technology & Management · Vol. 4, Issue 1, 2014 · pp. 14–25 Read article
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Risks in Construction Industry of Mangalore
Abstract: The study of risks in construction industry is an open-ended experiment as not many references are available for comparison. The geographical divide of India poses a challenge to the construction fraternity due to varied factors of risks involved in construction activities and it is not possible to give a common risk matrix for construction projects in India. It invariably has to be divided into smaller segments and the geographical area …
Published in Journal of Construction Engineering, Technology & Management · Vol. 3, Issue 2, 2013 · pp. 11–20 Read article
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Comparison of Flow Process Values for Different PID Controller Techniques
Abstract: The main objective of this paper is to find the best and suitable controller that can be applied for a flow process in a real system. The flow process is done in a cylindrical tank of cascade system. The search of PID controller is done by the steps of acquiring transfer function from the real time open loop response and invoking it to the various tuning techniques of PID controller …
Published in Journal of Control & Instrumentation · Vol. 6, Issue 1, 2015 · pp. 9–13 Read article
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Design and Implementation of Two Tank Level Control System
Abstract: This paper designs the electrically based solenoid control valve to controls the level, based on the error voltage from the MATLAB (Matrix Laboratory) control algorithm. Various control algorithms are derived for two tank system. Those algorithms are derived only on simulation data. Most of algorithms are coded using microcontroller. This proposed system is a live model of two tank level system controlled through MATLAB m-code. It consists of components such …
Published in Journal of Control & Instrumentation · Vol. 4, Issue 1, 2013 · pp. 11–15 Read article
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Continuous-Time Modelling of the Two-Input Fourth Order DC_DC Converter
Abstract: Two-input fourth-order integrated (TIFOI) converter is designed to process the power from two different sources Vg1 and Vg2. This converter facilitates regulation of dc-bus voltage and LVS current. In the power conversion process it performs bucking operation for first dc source Vg1, buck-boost operation for the second source Vg2. Power stage dynamics of the TIFOI converters is modeled using the state-space analysis. The system modelling plays an important role in …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 3, 2021 · pp. 1–11 Read article
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Investigation of Physical Characteristics and Machining Parameters of Improved Al-SiC MMC Using Dry EDM Process for Aerospace Industries
Abstract: Aluminium-based composite is widely used in aerospace and automobile industries because it is lighter in weight; but the trouble is that it is easily worn-out and life of the components is decreased. To overcome these problems, aluminium silicon carbide composite material has been developed with good wear-resistance, hardness and lighter weight. Silicon carbide has good mechanical properties like wear resistance, hardness, toughness and high melting point. Silicon carbide weight fractions …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 15–32 Read article