bluuebunny/crossref_metadata_2025_split huggingface dataset:
An environment friendly synthesis and characterization of Zinc Oxide nanoparticles using Mentha viridis leaf extract
Authors: Chowdhury Rashedul Alam , Hassan Md. Mahmudul , Das Shaon , Aninda Dhar Sajib , Moniruzzaman Md. 
Published: April 2021

Abstract
Zinc Oxide Nanoparticles (ZnO Nps) are one of the most predominant inorganic nanoparticles, which have diverse applications in the field of cosmetic, coating, medicine and electronic sensors. Morphology and particle size of nanoparticles mainly control its advantages and drawbacks in applications. In this study, an environment friendly and economic synthesis of ZnO Nps was carried out using Mentha viridis leaf extract as reducing and stabilizing agent to investigate the morphology, particle size and other properties of the synthesized ZnO nanoparticles. A series of characterization methods: ultraviolet-visible (UV-Vis) spectroscopy, x-ray diffraction analysis, field emission scanning electron microscopy (FESEM) and energy dispersive x-ray analysis (EDX) were used to confirm the characteristics of the synthesized nanoparticles. It was evident from the XRD analysis that ZnO Nps possess a polycrystalline hexagonal structure (as per the International Centre for Diffraction Data (ICDD) number #98-002-9272) with an average crystallite size of 32.3 nm. The spectra showing peaks in the EDX data indicated the presence of Zn (50.35 %) and O (49.65 %) in higher percentage and FE-SEM analysis revealed the morphology and Average Length and diameter of the nanorods are 156 nm and 48 nm respectively of the synthesized ZnO Nps. The analysis of the UV visible absorbance spectrum revealed the absorbance band peak at 372nm and confirmed the presence of ZnO Nps. From all these analyses, it is evident that Mentha viridis leaf extract can act as a potential reducing agent in the green synthesize ZnO Nps.
Effect of Welding Parameters on Angular Distortion of Submerged Arc Welded Low Carbon Steel Plates
Authors: Kashish  , Chaudhary Charu Singh , Khanna Pradeep 
Published: April 2021

Abstract
Submerged Arc Welding is an important industrial joining process used extensively for welding of thick plates. Hence, finds utility in heavy fabrication industries like ship building and pressure vessel industry. The process is characterized as a high heat input process which sometimes leads to certain weld abnormalities of which angular distortion is the one. The present work is an attempt to analyse the effect of input welding parameters like Wire Feed Rate, Voltage and Welding Speed on angular distortion which is a response parameter. Angular Distortion is caused because of the non uniform thermal stresses experienced by the top and bottom surfaces of the weld with top surface getting the maximum and the bottom surface getting the minimum thermal effects. This causes top surface to experience more contraction as compared to bottom resulting in distortion of weld across the line of weld known as angular distortion. This distortion may result in rejection, scrap or misfit of the weldment with parent structure. It is therefore important to keep this defect to a minimum and the present study is an attempt to work in this direction. The results are expected to be of practical importance from the industrial viewpoint.
Third Order Band Pass Filter With Double-Gate MOSFET: A Simulation Perspective
Authors: Naidoo Danurshan , Srivastava Viranjay M. 
Published: April 2021

Abstract
It is an extended version of the mathematical analysis of the proposed 3rd order Band Pass Filter (BPF). This device design uses the Double-Gate (DG) MOSFET’s which provides a better performance and reliability of the band pass filter. This 3rd order BPF design improves the device performance characteristics, such as enhanced power efficiency and switching capabilities, due to the properties of DG MOSFET technology. Simulation analysis of the proposed filter model has been performed. The BPF model has been designed for lower and upper cut-off frequencies of 100 kHz and 1.7 MHz, respectively. The 3rd order BPF filter has been modeled to have Butterworth characteristics, thus having a maximally flat pass-band response.
Effect of Welding Parameters on the Weld Bead Profile of Submerged Arc Welded Low Carbon Steel Plates
Authors: Chaudhary Charu Singh , Kashish  , Khanna Pradeep 
Published: April 2021

Abstract
Welding of thick and long steel sections with minimal requirements of etch preparation has posed a challenge to the fabricators to have a reliable and good quality joint. Such requirements are successfully catered to by the submerged arc welding process which was developed in early 40s to weld thick hull sections of naval ships. The process has since been used extensively in heavy fabrication industries like ship building, pressure vessel and rail industries. The strength and quality of weld produced is decided by its bead parameters like depth of penetration, bead width and reinforcement height. It has been found that weld parameters like wire feed rate, voltage welding speed nozzle to plate distance, torch angle and flux composition have influence on bead parameters. Present work is an attempt to develop a mathematical relation between bead parameters and input parameters so that an empirical relation can be developed between them Full factorial approach with 2 levels and 3 factors is used and graphical depictions are used to analyse the result
Study on Design and Analysis of Industrial Y Type Strainer
Authors: Patel Mohammed Ather , Saheb Shaik Himam 
Published: April 2021

Abstract
Industrial Strainers are widely being used in Various Heavy Mechanical Industries such as Petro Chemical, Oil and Gas, Steel industry, Water Treatment and Process Industries. The Main purpose being Removal of unwanted Materials in pipelines is a never ending one. Whether the Flowing Material as Sea Water, Oil, Paint or variety of Food or Chemical products. The cause of damage might be dirt, foreign matter or even Clamps of the Product. The Main widely used Industrial Strainers are Basket, Magnetic, Duplex, Y-Type, Tee type and conical strainer. The material used in overall Manufacturing of the Different Strainers is MS (Mild Steel), SS (Stainless Steel). The most efficient of all the strainers Duplex Strainer, because of its large design ratio and larger Material Handling Capacity. The Main Purpose of this Research is to Study Design and Materials involved in the manufacturing of Y-Type are being mainly used in the fluid pipelines in order to Filter Out the impurities, Foreign Particles and protect the downstream.
Energy recovery of sewage sludge treatment by anaerobic co-digestion
Authors: Tran Thanh , Nguyen Kieu Lan Phuong , Thi Van Doan , Giang Lam Van , Tan Lam Van 
Published: April 2021

Abstract
Sewage sludge produced from wastewater treatment is one of the challenges facing many countries in their development process; therefore, the sewage sludge needs treating suitably. Besides, recovering energy from waste to save operating costs in treatment plants is also being considered. The study was conducted by mixing urban sludge samples with substrates (agricultural residues) to create different C/N ratios from 16.6 to 32.5, then evaluating the quantity and quality of methane) the gas generated from the test pieces. This method not only solved the environmental problem but also had benefited from biogas produced from the digestion process. The initial results showed that the quantity of biogas from anaerobic co-digestion of sewage sludge and rice husk (ratio 4:1) are 160ml/g VS. Furthermore, the quality of methane can be up to 60% and near twice as much as mono-digestion. The study results estimate that the potential of recovering electricity from the sludge for the wastewater treatment plant of Binh Hung (Vietnam) is about 0.2 MW/year or higher.
Optimisation of Drilling Parameters of Metal Matrix Composites using Genetic Algorithm in the Taguchi Method
Authors: Rao C V Subba , Rao Y Sesha , Marimuthu P , Jeyapaul R , Chakravarthy N S Kalyan , Murugesan P 
Published: April 2021

Abstract
This work presents the machining parameters optimization on machining metal matrix composites using genetic algorithm in the Taguchi method with the objectives of minimization of surface roughness, cutting force, maximization of metal removal rate, cutting power, specific cutting energy, cutting power and machining time. Experiments were conducted on aluminium silicon carbide Metal Matrix composite using TiN coated HSS twist drills. Optimal setting of parameters have been identified using Taguchi Technique and Genetic algorithm. Genetic algorithm is developed in ‘C’ language. The presented work gives a better results and it can be used for any machining parameter optimization in solving multiple response problems.
Conductivity tensor in cylindrical quantum wire with infinite potential for the case of electron-optical phonon scattering
Authors: Ngoc Hoang Van 
Published: April 2021

Abstract
Conductivity tensor characterizes the conductivity of the material, this work calculates the conductivity tensor in a cylindrical quantum wire with infinite potential in the presence of two external fields, the laser field and linearly polarized electromagnetic wave field. The problem is also only considered for the case of electron-optical phonon scattering. By using a quantum kinetic equation for electrons in a quantum wire in the presence of two external fields, the conductivity tensor is calculated. The expression for conductivity tensor shows its dependence on the frequency and amplitude of the external field as well as other parameters specific to the system The figure of the dependence of the conductivity tensor to the external field will be investigated and plotted for the quantum wire GaAs/GaAsAl.
Stability study for the rehabilitation of the protective dike of the port El Jadida (Morocco)
Authors: Laila Mouakkir , Mustapha Mouhid , Hassan Ayad , Brahim Bouni El , Mohamed Chagdali 
Published: April 2021

Abstract
In this study, we are interested in the stability study and reinforcement of protective structures represented by the breakwater of the port of El Jadida. This study is based on the numerical modeling of the interaction of the swell with an embankment dam. The swell simulation parameters were simulated using the SWAN model [1]. The results of this modeling show that the most constraining swells likely to reach the project site are the swells of 14s and 18s of 50 years and 100 years return period and that the residual swell heights are between 1.63 m and 1.96 m maximum. The redefinition of the project swell based on this numerical modeling makes it possible to resize the components of the protective dike by the Hudson formula [2].
Stress evaluation of CSZ and SiAlON under Thermo-Mechanical loading condition
Authors: Vigneshwaran M. , Srisanthosh S. , Nandhakumar J. , Madhubalan R. , Chandran Vaisak R 
Published: April 2021

Abstract
This work deals with the Thermo-mechanical analysis of Thermal barrier coating over Aluminum 2026 alloy through Finite Element Method in ANSYS 15.0R software. The coating material is Nano composite (metal matrix). It consists of double ceramic layer (TC1, TC2) with a layer of bond coat (BC) between the substrate (SUB) and the ceramic layers. The top Ceramic layer is of a new kind of refractory material with better oxidation resistant and corrosion resistant above 1000oC. The inside ceramic layer is well known for thermal resistant. In order to give a better bonding strength, the grain size of the coating powder is maintained at Nano scale. A Finite Element model has been developed to identify the intermittent temperature of the coatings under thermal loading conditions. From this FEA result the model was subjected to thermo-mechanical stress analysis to find out the stress distribution over the coatings and the substrate. We analyzed with three different temperatures in the same model. The result shows that the double ceramic layer will reduce the Substrate temperature effectively. The interfacing area and the edges of the coating experience more stresses when compared to other area. The paper reveals that the coated material’s stress concentration is very less when compared to the uncoated material.
Strengthening of Soil by adding Lime and Glass Fiber as Stabilizing Materials for the Construction of High Rise Buildings
Authors: Naidu Gopu Ganesh , Ramakrishna Ravulapalli , Ezri Babu G 
Published: April 2021

Abstract
The main aim of this research is to increase the strength properties of the weak soil by using stabilizing materials for the construction of high raised buildings on weak soils. As we all know that the most important thing in construction industry is soil. In this research we are adding stabilizing materials like lime and glass fibers to the weak soil to increase the strength parameters of the soil. The addition of stabilizing materials and admixtures to the soil leads to the increase in the strength parameters of the soil. There are various Infrastructural projects which are constructed on the soil, in many of these cases the black cotton soil is not suitable, because the Black cotton soil is weak in strength and which has low engineering properties. Black cotton soil has more swelling property and high shrinkage nature. To overcome these problems and to improve the engineering properties of the black cotton soil, we are adding Lime and Glass fibers as the stabilizing materials in the weak black cotton soil. The engineering properties like strength, compressibility and bearing capacity of the soil were increased by stabilizing the weak soil these stabilizing materials. This work mainly concentrates on the feasibility of the usage of lime and glass fibers as the stabilizing materials for the black cotton soil. The percentage of Lime and glass Fibers used in black cotton soil varies in different proportions like 2%, 4%, 6%, 8% and 10%. All the necessary tests were conducted to get the results. The properties like Liquid limit, Plastic limit, Compaction characteristics values and Differential free swell index of soil have been studied in this research.
Eco Bricks from Industrial Wastes such as Tannery Sludge and Sugarcane Bagasse Ash
Authors: Rose Enid Teresa A , Uma Maguesvari M , Yugasini S , Muthaiyan P 
Published: April 2021

Abstract
Clay bricks are one of the prominent construction materials. Due to the usage of Bricks in abundance in construction sector and manufacturing of quality clay bricks from fertile raw materials, admixtures etc., the world is in need of alternatives to prevent the depletion of clay from agricultural lands.. The tannery sludge which is disposed as a landfilling material, is a potential substitute for brick making. In addition, bagasse ash with high silica content, which is a waste disposal from sugarcane industry wastes, might be incorporated with sludge in brick manufacturing. In this paper, an attempt has been made to manufacture Eco Brick made from tannery sludge and bagasse ash with clay. Tests were carried out on Eco Bricks manufactured from various composition of Sludge and bagasse ash and it has been proven to be an effective alternative material in construction industry.
Assessment of strength and durability parameters for concrete with partial replacement of coarse aggregates by iron slag and glass powder as an additive
Authors: Prakash Akula , Swaminathen A.N. , Ramu Akoju , Chaitanya Bypaneni Krishna 
Published: April 2021

Abstract
Global warming and environmental destruction have become the major issue in recent years. Use of more and more environmentally friendly materials in any industry in general and construction industry, is of more importance. Preventing the depletion of natural resources and enhancing the usage of waste materials has become a challenge to scientists and engineers. Waste glass in one material when grounded to a very fine powder shows pozzolanic properties which can be used as additives, Iron slag rendered as scrap is used as partial replacement of aggregate in concrete. Iron slag is an industrial waste by-product of steel industry. The present investigation deals with the usage of Iron slag as a partial replacement of coarse aggregate and addition of glass powder to the concrete. The optimum percentage of iron slag to be replaced is found out by conducting 28 days compressive test on cubes of size 150mm*150mm*150mm with 5%, 10%, 15% replacement of coarse aggregates with iron slag. The glass powder is added with percentage of 5%, 10%. With the overall percentage of iron slag and glass powder the workability of concrete is checked and cubes are casted and tested for its compressive strength and durability parameters like saturated moisture content, effective porosity, sulphate attack and carbonation depth
Strength properties of double blend and triple blend self-compacting concrete subjected to different curing methods
Authors: Rao Tadivaka Venkateswara , Seshagiri Rao Meduri V , Rao Pasumarthi Jagannadha 
Published: April 2021

Abstract
The behaviour of Self Compacting Concrete is complex with the addition of both chemical and mineral admixtures. The use of supplementary cementing materials such as Metakaolin, FlyAsh, GGBS and Silica fume is required to improve the flow properties of fresh concrete, to decrease the cement contents, to increase the strength as well as durability of cement and to reduce cement consumption for environmental and economical concern. The hydration mechanism, strength, and setting characteristics of SCC are all influenced by the curing process. As a result, the findings of an investigation into the effects of curing methods on the compressive strength of SCC using Metakaolin as the primary supplementary cementing material are described in this paper. FlyAsh, GGBS and Silica fume are used individually for triple blend binders with OPC and Metakaolin. The Grade of concretes made were Standard concretes of M50. The concretes’ compressive strengths were assessed at 7 and 28 days. The traditional water pond approach was used as a reference, and wax-based liquid membrane and polymer-based liquid membrane curing compounds were used for testing. To reduce the water cement ratio and increase the flow and filling capacity of SCC, a superplasticiser based on a polycarboxylic ether polymer with long lateral chains is used. The performance of the Polymer based membrane curing compound is better than Wax based membrane curing compound. In addition to this, the polymer based membrane allows plastering and painting over the concrete surface. The early gain in strength is observed in all the membrane cured cubes at 7 days, but the rate of gaining strength is reduced after 7 days when compared with the Water pond cured cubes.
Experimental and Numerical Investigation of Residual Stresses in low pulsed Laser Shock Peening on AA7075 T651
Authors: Abeens Qingbo , Rajasekaran E. , Premnath M. , Sarukasan D , Muruganandhan R. , Thirumavalavan K. 
Published: April 2021

Abstract
Laser shock peening (LSP) is the emerging technology among several severe surface treatment processes for improving mechanical characteristics of metallic materials by producing compressive residual stresses. Though several LSP experiments have been done on compressive residual stresses, scare amount of studies concentrated on numerical investigation of residual stresses in LSP. The objective of this article is investigation of the experimental and numerical study of compressive residual stresses on AA 7075 t651. In the experiment, residual stresses analysis is performed. The sin^ method was utilized for measuring residual stresses. The three-dimensional (3-D) finite element method (FEM) analysis was applied to simulate the LSP on AA 7075 t651. The simulated and measured results showed good agreements. The numerical study was utilized to determine the compressive residual stresses.
Effect of Doping Rare-Earth Element on the Structural, Morphological, Optical and Photocatalytic Properties of ZnO Nanoparticles in the Degradation of Methylene Blue Dye
Authors: Habib I.Y. , Zain Nuraina Mohamad , Lim Chee Ming , Usman A. , Kumara N T R N , Mahadi Abdul Hanif 
Published: April 2021

Abstract
ZnO has been widely explored as a remarkable photocatalyst for the degradation of wide ranges of organic pollutants. However, its photocatalytic activity could be enhanced through metal doping. In this study, a rare-earth element, Cerium was doped into the microstructure of ZnO nanoparticles (NPs) using deposition precipitation method to enhance its photocatalytic activity towards methylene blue degradation via UV light irradiation. The resulting degradation efficiencies (DEs) recorded in this study are ∼ 64 %, 85 % and 55 % respectively. Similarly, the recorded rates are also found to be 9 x 10 −3, 21 x10 −3 and 6 x 10 −3 respectively, which are well correlated with the DE values. This superior photocatalytic performance achieved by 1 % Ce doping could be attributed to the reduction in band gap of the pure ZnO NPs from 2.69 eV – 2.60 eV. Therefore, 1 % Ce was the optimum doping of Ce4+ ion into ZnO microstructure, which demonstrates that Ce4+ ion could be used as an effective tool for stabilizing the generation of the reactive oxygen species, slowing down the recombination of the photo-generated charge carriers as well as enhancing their separation. Therefore, the optimum Ce doping into the ZnO NPs could play a remarkable role in facilitating the structural, microstructural, optical and electronic properties of the ZnO semiconductor, and eventually enhanced its photocatalytic activity.
Application of Phase Change Materials in Solar Water Heating Systems for Thermal Energy Storage
Authors: Nagilla Dheeraj Kumar , Tyagi V. V. , Kadirgama Kumaran , Chopra K. , Pandey A. K. , Kothari Richa 
Published: April 2021

Abstract
One of the major drawbacks of solar water heating systems is unable to supply hot water during night time or off sunshine hours. The integration of phase change material with solar water heating systems is cost effective and efficient solution to overcome this major problem associated with solar water heating systems. The phase change material integrated with solar water heating system stores thermal energy during sun shine hours and this stored energy can be recovered during off shine hours or night time to produce hot water. The phase change material can be integrated with water tank of collector, evacuated tubes, external water tank for solar collector and flat plate collector by adding layers at the bottom of absorber plate. The integration of phase change material with SWH system not only overcome the drawbacks of SWH system but also enhance the efficiency of conventional SWH system. Many investigations for the application of TES materials integrated SWH system have been carried out and found a significant enhancement in the performance. This paper presents a comprehensive review of recent advances in the applications of PCM with SWH system for TES.