bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of annealing temperature and cutting angle of specimens on metallurgical and mechanical properties of Mg-7Li-1Zn alloy via Taguchi approach and response surface analysis
Authors: Pahlavani M , Marzbanrad J , Reza Kashyzadeh K 
Published: April 2021

Abstract
The main aim of this research is to assess the effect of annealing temperature and cutting angle of specimens on the metallurgical and mechanical properties of superlight Mg-Li-Zn alloy thin sheets. To this end, as-rolled LZ71 (Mg-7%Li-1%Zn) alloy was annealed at different temperatures (0, 250, and 350° C) for 3 hours. After that, the test specimens were cut at different angles relative to the rolling direction (0, 45, and 90 °). Next, several experiments were accomplished to study the microhardness, microstructure, grain size, and tensile behavior of the LZ71 alloy. Finally, different Design of Experiment (DOE) techniques were used to determine the individual and interaction effects of annealing temperature and cutting angle of specimens on the material characterization of LZ71 alloy. In this regard, annealing temperature and cutting angle were considered as input parameters in both Taguchi Approach (TA) and Response Surface Analysis (RSA). Also, key parameters of the tensile test including Ultimate Tensile Strength (UTS), Yield Stress (YS), Elastic Modulus (EM), and Strain at BreakPoint (SBP) were considered as outputs. It was concluded that annealing temperature influence on the static behavior of LZ71 alloy is several times greater than the effect of cutting angle (i.e., the effect of annealing temperature on the UTS, YS, EM, and SBP is 92%, 76%, 61%, and 66%, respectively). Moreover, the results of the Response Surface Optimization Algorithm (RSOA) showed that to achieve the best static properties in different directions, the annealing temperature should be selected to be 350°C.
Chemically synthesized ZnO and Cd-ZnO thick films as Ethanol sensor
Authors: Patil Yogita , Pedhekar R.B. , Patil Swaraj , Kosalge Swapnil , Raghuvanshi F. C. 
Published: April 2021

Abstract
In this paper, we report precipitation method for preparation of pure and Cd-ZnO nanorod using different doing concentration. Thick films are fabricated by screen printing technique. For structural, morphological, compositional and optical characteristics of fabricated thick films X-ray diffraction technique (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray technique and UV–visible spectroscopy were used. To check gas sensing properties, hydrogen sulphide (H2S), carbon dioxide (CO2), liquid petroleum gas (LPG), ammonia vapour (NH3), ethanol vapour and hydrogen (H2) gases were used. The excellent gas response was obtained for 3.0 wt.% Cd-ZnO towards ethanol among all Cd-ZnO thick films at operating temperature 573 °K.
Modeling of sediment transport of Capo Negro bay
Authors: Hassan Ayad , Mustapha Mouhid , Laila Mouakkir , Brahim Bouni El , Mohamed Chagdali 
Published: April 2021

AbstractThe coastline is a curve/line representing the intersection between land and sea. The interaction between the atmosphere, the sea and the continent give the coastal fringe a multiphasic character that is very complex and difficult to manage. The concentration of human activity in coastal areas requires looking at problems that may endanger beach stability, coastal development, and consequently loss of human heritage. The most widespread problem on a global scale is erosion, especially with the current trend of rising sea levels. And given the complexity of this process and for better management of coastal areas, mathematical modeling is an indispensable tool.In this work, we study the evolution of the Cabo Negro coastline and present a methodology based on two complementary approaches: first, an oceanographic, granulometric and sedimentological study of the site. Secondly, numerical modeling to analyze the evolution of the coastline and the prediction of its long-term position by using a mathematical model: the GENESIS calculation model.
Modeling wave interaction in long wave theory during its spread over a stratified porous bottom
Authors: Mustapha Mouhid , Hassan Ayad , Laila Mouakkir , Brahim El Bouni , Mohamed Chagdali 
Published: April 2021

Abstract
In this work, we are interested in the study of the interaction between a gravity wave and a porous media made up of multi layers of different geometrical characteristics. The dispersion relation and the reflection coefficient are calculated and analysed according to the porosity of the porous media. A generalization of these relations is proposed in the case of long waves. In terms of application, we analyse the most adequate configuration for better behaviour of the porous media under the gravity wave. The wave is calculated within the potential theoretical framework and the Forchheimer model is selected in order to take into account the inertial aspect of the flow in the porous media.
Study of the importance of core cylinders in the monitoring of the compressive strength of the concrete
Authors: De J , Iglesia La , Murillo M , Borrero Restrepo D 
Published: April 2021

Abstract
The fulfillment of the resistance to the compression as a fundamental property of the concrete, during the process of execution of a work, constitutes great work for all the factors that intervene in the constructive process. The same concrete cannot be suitable for all structures, many times when using the same mixture, failures can occur with relevant damage. This situation frequently occurs at construction sites and resources must be allocated to repair structures to guarantee their useful life. This research aims to focus on the importance of performing compressive strength tests and taking enough samples for reliable results. For this purpose, 36 concrete test samples were taken from different structural elements of work according to the requirements of the standard. Subsequently, the laboratory tests were carried out at 7, 14, 28, and 56 days with a control cylinder, to analyze the behavior of each sample according to the concrete specifications requested for the different types of structures. From the results obtained, we could observe the differences in the percentages achieved by each of the samples and the type of failure presented, in turn, the importance of the control cylinder, for the monitoring of the strength of the concrete.
Effect of dispersing CTBN into Diglycidyl Ether of Bisphenol-A on Mixed mode Loading
Authors: Kumar J.V. Sai Prasanna , Baskar S. 
Published: April 2021

Abstract
Delamination of polymer composite is one of the major failure characteristic, in this context the fracture behavior of the tailored composites in combination of opening mode and shearing mode is assessed and its fracture robustness of the glass fiber reinforced laminate are determined experimentally, in this present work by developing a modified Arcan fixture using a single edge notched specimen for characterizing in various loading conditions, The fixture was made of industrial grade Aluminum ingot machined to an outer diameter of 150 mm, having a thickness of 10 mm. The fixture had provision to load the sample at different oblique angles up to 90 degrees in steps of 15 degrees. The samples were attached to the fixture by means of fasteners and were tested in tensile mode using a 40 KN Instron tensile tester at constant displacement and ambient conditions. Further, the resin was strengthened with Carboxyl Terminated Butadiene Arenonitrile (CTBN) and its effect on fracture parameters was studied by varying the loading angles. Results indicate that the fracture parameters vary with loading and at angles greater than 45 degrees, the GFRP sample’s behavior changes from opening mode to shearing mode and the converse is also true. This pattern is similar, with the specimens even after modifying the resin with CTBN however, it was found that stress intensity factor increased corresponding to the increase of CTBN infusion. CTBN was dispersed into the Bisphenol base A (LY566– A general purpose thermoset epoxy resin) in three different percent: 1%, 3% and 5% by weight. The layup sequence used in this work was cross ply. The effect of varying the loading angles on the stress intensity factors were studied.
Design and analysis of hybrid composites using adaptive neuro fuzzy inference system
Authors: kavitha I. C. , Frank glads on T.S. 
Published: April 2021

Abstract
This article shows an adaptive neuro-fuzzy inference system (ANFIS) model that can predict the cyclic response under a mixture of different parameters. The ANFIS model used for prediction can accurately predict the cyclic reaction of blends with different parameters. It is used for evaluation to predict and analyze the relationship between independent machining variables cutting speed, feed rate, depth of cut and machinability cutting force, cutting power, specific cutting pressure standards. In this evaluation of PEEK CF 30 processed with TiN-coated cutting tools, experiments were conducted and the results obtained were used to apply the ANFIS method to prediction. The primary motive on this research is the affect regarding it factors of cutting force, cutting power and specific cutting pressure.
Cost Minimization of Turning Machining Process with Materials using Abc, Auction, Ant Lion, Elephant, Spiral, Bacterial, Greedy, Lawlers Fireworks and Pattern Search
Authors: Jagan T. , Elizabeth Amudhini Stephen S. 
Published: April 2021

Abstract
The optimization algorithms are used in machining process for improving product quality and minimizing cost and time. The turning machine process is used for cutting speed and feed. This paper describes the optimization of machining process by using the ABC algorithm, Auction, Spiral, Ant lion, Elephant herding, Bacterial colony, Greedy, Lawler’s, Fireworks and pattern search for these ten non-traditional methods. In this paper, we have compared the solution to minimize the total cost and time of turning machine process using ten artificial optimization methods. We conclude which method gives a better solution for turning machine process.
Investigating the luminescent property of transition metal doped ZnS nanoparticles synthesised by co-precipitation method
Authors: Desai N V , Shaikh I A , Raval Adhish V , Raval K G , Shah D V 
Published: April 2021

AbstractThe group II-IV nanoparticles have excellent semiconducting properties having a possibility of tuning it by changing the size, shape and precursors. This makes them an ideal candidate for their applications in the field of science and technology. Amongst several semiconductor nanoparticles, zinc sulphide (ZnS) nanoparticles are promising material because of chemical stability, low toxicity and better optical properties. Introducing transition metal impurities in ZnS nanoparticles further improves the physical properties like optical and magnetic. The synthesis and optical properties of transition metal doped ZnS nanoparticles with varying doping percentage is reported. The doping of ZnS with the transition metal with variable doping concentration improves the luminescence in comparison of pure ZnS. The photoluminescence spectrum has a single major peak at 780nm, and the intensity increases with the type and concentration of the impurity but at higher concentration the luminescence is quenching. This paper tries to give a comprehensive study of photoluminescence of ZnS nanoparticles doped with different transition metal with varying concentration.
Evaluation of Mechanical Properties of High Strength (M40) Fibre Reinforced Concrete using Admixtures
Authors: Naidu Gopu Ganesh , Nagaraju Maila , Kumar K.Ashok 
Published: April 2021

Abstract
This research concentrates on the evaluation of mechanical properties of high strength concrete using fibers and admixtures. Now-a-days High strength concrete is used in the construction to get the more strength and durability. High strength concrete mix of M40 grade is designed by adding fibers and admixtures. Admixtures like Super plasticizer & master glenim are used to replace the cement content in the mix. Chemical admixtures are used to decrease the water content in the concrete such that its workability and compressive strength increased. Along with that as the concrete is weak in tension, to overcome that, fibers of polypropylene were used. Fibers can increase the tensile behaviour of the concrete beam. The specimens were prepared by adding the fibers and mineral admixtures to the high strength (M40) concrete and conventional concrete and tested for compressive strength, Slump cone test, Modulus of elasticity and flexural strength at 7,14, 28 & 56 days. Based on the experimental values, it is clearly identified that all the results were obtained target mean strength. Experimental data shows that using fiber content from 0.5% to 1% can increase all mechanical properties of the concrete but using more than above mentioned content will leads to decrement of strength parameters of the concrete.
Applications of EPS Geo-foam and Geo-membranes in Construction Industry – Bridges, Embankments
Authors: Naidu Gopu Ganesh , Manohar Kota Sai 
Published: April 2021

Abstract
This paper mainly concentrates on the uses and applications of EPS geo-foams and geo-membranes in construction industry like Bridges and Embankments over weak soil (compressible soils). If any external load is acting on weak soil, it will undergo settlement and the soil will be compressed. To overcome these settlements and compression of the weak soils, in this research we suggest EPS geo-foams. The EPS means “Expanded Poly Styrene”, it is a light weight material which is 1% weight of soil and it is less than 10% weight of other light weight materials and it is available in different densities. It has high compressive resistance and it reduces settlement of weak soil. It is generally used as a soil fill replacement material. If the soil contains any moisture content, the geo membrane acts like a water barrier for the geo-foam material. Geo-membrane is a thin continues polymeric sheets and it is a geo synthetic material, it is generally used in construction industry and geotechnical applications. If we place different types of densities of EPS geo-foam blocks and geo-membranes over weak soil in bridges and embankments, the soil behaviour is changing and attaining stability. Finally based upon the behaviour of weak soil we conclude that, at which density of the EPS blocks the soil attain more strength and how other strength parameters has been related to density by conducting the different tests.
Application of Multiple Linear Regression Models and Adaptive Neuro-Fuzzy Inference System Models to estimate the Compressive Strength of Concrete
Authors: Hussain Mohammed , Raju Y Kamala , V Kamakshi Prasad 
Published: April 2021

Abstract
The most widely used composite construction material is concrete. Compressive strength is an important monitoring parameter for quality assurance at construction site. In this paper,two different models of Multiple Linear Regression ( MLR) and Adaptive Neuro-Fuzzy Inference System (ANFIS) are developed to predict the 28 day compressive strength of concrete using the experimental datasets available . These two models are compared . Sensitivity Analysis (SA) is carried out for two different sets of parameters. ANFIS models predict more effectively as their coefficients of multiple determination(R Square) are higher than those of MLR models. This shows that the nonlinear correlation among input variables is better represented in ANFIS models than in MLR models .Goal 12 of United Nations Sustainable Development deals with the sustainable consumption and production patterns and it is taken into account as environmentally degrading materials( flyash and blast furnace slag ) are used.
Investigation on the Mechanical Property and Crack Arresting Mechanism of Natural Jute Fiber used as Reinforcement for Lightweight Concrete Masonry Prism
Authors: Vijayalakshmi R 
Published: April 2021

Abstract
Concrete being the widely used material in construction work is strong in compression and brittle in nature. Addition of fibres to the cementitious mix helps to improve the tensile property of the material, particularly after reaching the yield load. In addition, fiber reinforced cement composites exhibit better toughness, crack resistance, flexural capacity, and ductility than non-reinforced cement materials. In developing countries natural fibers are used in the cement composites to produce a low-cost building construction. Previous research works, carried out using sugarcane, hemp, jute, banana and coconut were found to improve the tensile and compressive strength of concrete composite elements. Main aim of this work is to study the performance of jute fiber reinforcement in lightweight foam concrete masonry structure. To study the load deformation patter, jute fiber reinforced masonry prism were subjected to axial compression load. From the stress-strain behaviour it can be concluded that jute fiber reinforcement in foam concrete help to improve the pre cracking behaviour and prevents the formation of major crack plane in masonry unit. Masonry unit with different dosages of fiber were tested and results were plotted. From the study it can be concluded that light weight foam concrete with fiber reinforcement can be used as a better alternative to clay bricks and aerated concrete blocks.
Density, Molar Volume and IR Studies of Lithium Doped Bismuth Lead Borate Glasses
Authors: Sangeeta B.Kolavekar , Ayachit N. H. 
Published: April 2021

Abstract
Structural analysis of 15Bi2O3-(50-x)PbO-35B2O3-xLi2CO3, x = 0,5,10,15 and 20) of lithium doped bismuth lead borate glass system (BPBL) using density, molar volume, and IR absorption spectra has been carried out for These glasses were prepared by the most reliable conventional melt quenching technique. Densities and molar volumes have been measured as a function of Li2CO3 content. Almost linear variation in the density and the molar volume has been observed in the present glasses and is attributed to the role of Li+ in these glasses. IR spectra of these glasses exhibit characteristic vibrations due to the borate network. The band at 400 cm−1-600 cm−1 due to absorption refers to metallic and cationic vibrations of metallic cations of Bi3+ and Li+.
A Composite Material an alternative for manufacturing of Automotive Disc Brake: A Review
Authors: Wasekar Milind K , Khond Mohan P 
Published: April 2021

Abstract
The brake disc is an indispensable component of an automobile especially in this trending era of electric mobility, where gasoline engines are superseded by electric vehicles in which prominent criteria is to lower down the weight to enhance the performance of the vehicle. Aluminum Metal matrix composites (MMC) play an important role because of researchers as these are not only used in automotive industries but aircraft and locomotives also. In most vehicles, these brakes are made up of Cast Iron which has well anti-wear properties and cheap too. But in certain other cases such as high-performance vehicles, these brake discs are not up to their standards of high performance because the cast iron brake discs are heavy and so reduces the vehicle’s performance to a particular extent. This paper reviews on fundamental function of Disc brake and the crucial challenges found in this review are, the problem of evolution of hazardous wear particles in an atmosphere, thermoelectric friction problem during braking, friction-induced vibration which causes squeal, the behavior of abrasive particles, and dynamic stability analysis, etc. an alternative to cease these problems possibly is to adopt novel material
Latent heat energy storage system using phase change materials and techniques for their performance improvement: A Review
Authors: Mundra S S , Pardeshi S S 
Published: April 2021

Abstract
Entire world is struggling to explore newer methods to overcome the energy crisis. With limited and exhausting energy resources researchers around the world are finding efficient ways to store thermal energy. One of the efficient ways is to store thermal energy in the form of latent heat energy using phase change materials (PCMs). Latent heat storage (LHS) units have been widely adopted owing to superior energy storage density and constant operating temperature. But the thermal performance of these systems is limited due to low thermal conductivity of the PCMs. Researchers across the globe working on approaches to improve the thermal performance of these systems. The present review paper is concerned with a review on PCMs, methods to improve performance of LHS system using PCMs with special emphasis on use of various additives such as nano particles and porous materials to increase the thermal performance of PCMs and types of PCMs for specific applications. The factual data presented in this paper would be helpful in selection of appropriate PCM for specific application, and to adopt suitable performance enhancement technique to obtain most optimal LHS system
Thermal analysis of fin materials for engine cylinder heat transfer enhancement
Authors: Durgam Shankar , Kale Aniket , Kene Nikhil , Khedkar Akshay , Palve Sanket , Gawai Nikita M. 
Published: April 2021

Abstract
In automobiles the internal combustion engine cylinder is one of the major component which is subjected to high thermal stresses and temperature variations. Engine cylinders come up with fins or extended surfaces. The heat transfer enhancement from engine cylinder is mainly depends on fin material and shape. We can use different fin materials and fin geometries in order to increase heat transfer rate. In this work heat transfer rate through fins with different materials was evaluated. The fin geometries such as the rectangular fins attached to the cylinder block. In this analysis different physical and thermal properties along with cost associated with the fin materials are considered. The 3D model of geometries are created using CATIA-V5, and thermal properties are analyzed using commercial software ANSYS FLUENT 2020 R1. From the results of steady state thermal analysis of engine cylinder it is found that the value of heat flux increased through cylinder block to the surroundings. The weighted point method applied to find performance of fins based on material that is best suited for manufacturing of fins.
Materials selection for hybrid and electric vehicle battery pack thermal management: A review
Authors: Durgam Shankar , Datir Priyanka , Tawase Onkar , Savant Dipak , Tapkir Ganesh , Warkhedkar > Ravi M. , Gawai Nikita M. 
Published: April 2021

Abstract
This paper reviews materials for hybrid and electric vehicles battery pack thermal management required for efficient working of batteries in any climate conditions. Lithium-ion (Li-ion) battery cells are being used for electric or hybrid vehicles because they having high density of energy and long life cycle. Battery lifetime and performance of Li-ion batteries depends on operating temperature. The higher operating temperature increases capacity and decreases life of Battery. Thermal management strategies which are based on air, water, phase change material (PCM) and heat pipe are discussed and compared. After comparison, an efficient system of temperature management for battery pack is discussed. Phenomena of creating heat and temperature issues of Li-ion batteries are discussed in this paper. Then different strategies are reviewed and classified based on thermal cycle options. Improving the existing temperature control system and testing new technologies to reduce thermal issues is necessary, and efforts should be made to prioritize the thermal management system to improve temperature uniformity throughout battery pack, life of battery, and increase protection to battery packs.