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692 articles for “zones”
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Numerical and Experimental Investigation on I-type Damage Evolution in Glass Fiber Reinforced Laminates Subjected to Quasi Static Loading
Abstract: Glass fiber reinforced polymer composites has become more popular material used in aerospace and marine structural applications due to their specific strength and anti-corrosion properties. The present work discusses the numerical and experimental investigation on I-type damage evaluation in glass fiber reinforced laminates under quasi-static loading is presented. Three volume fraction of glass and resin (40/60, 50/50 and 60/40) plies were selected for both numerical and experimental damage analysis. The …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 3, 2017 · pp. 27–33 Read article
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Inhibition of Growth of Selected Bacterial Species Through the Use of Methanolic Maceratives of Black Soldier Fly Pre-Pupae
Abstract: The attempt is dealing with of analysis of effect of maceratives of prepupal stages of black soldier fly (BSF) (Hermetia illuncens L.) in methanol on the inhibition of the growth of selected bacterial species. The bacterial species used for the study include: Salmonella typhimurium (L.); Escherichia coli (L.); Pseudomonas aeruginosa (L.); Bacillus cereus (L); Bacillus subtilis (L); Streptococcus cremoris (L); Streptococcus faecalis (L); Staphylococcus aureus (L); Klebsiella pneumoniae (L); Salmonella …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 2, 2021 · pp. 30–44 Read article
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Design and Implementation of IoT-enabled Movable Road Divider for Vehicular Traffic Control
Abstract: Road dividers are widely used to separate continuous and incoming traffic on road. This is useful for maintaining traffic flow. In this case, there are equal numbers of lanes for incoming and continuous traffic. However, in specific zones, such as industrial or shopping zones, traffic generally flows in one direction in the early morning or late at night. There is nothing or no use on the other side of the …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 3, 2023 · pp. 29–35 Read article
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Utilization of Coal, Natural Gas and Water for Sustainable Power Generation in Nigeria: Challenges, Prospects and Way Forward
Abstract: Energy mix development is critical for national economic growth, optimal performance of industries and sustainable development in most nations of the world. This study examines the extent of the utilization of coal, natural gas and water for sustainable power generation and provision of competitive energy in Nigeria. Secondary data analysis was used in this research to analyze the data collected from the various literatures and documentary archives. Challenges facing this …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 1, 2022 · pp. 7–13 Read article
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A methodology for the determination of bearing capacity of granular soils with plate loading tests
Abstract: In granular soils, due to the inability to collect undisturbed samples of soil for geotechnical laboratory tests or the impracticality of carrying out dynamic penetration tests, highlights the necessity to find a useful approach in the engineering geological practice for the determination of bearing capacity. In these soils the determination of bearing capacity can be evaluated with several formula that necessary require the estimation of the friction angle: this leads …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 1, 2020 · pp. 1–8 Read article
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Analysis of Seismic Response of 3-D Steel Frame
Abstract: It is of critical importance that the structures that need seismic retrofitting are correctly identified, and an optimal retrofitting is conducted in a cost-effective fashion. Among the retrofitting techniques available, steel braces can be considered as one of the most efficient solution for seismic performance upgrading of RC frame structures. This paper investigates the seismic behavior of 3D-steel frame with different type of bracings for seismic loading condition corresponding to …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 2, 2015 · pp. 6–14 Read article
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Shallow Seismic Refraction Investigation for Site Classification and Geotechnical Engineering Applications
Abstract: The survey was carried to determine the Site Class of the study area and also estimate some geotechnical parameters of potential construction sites within the study area. The survey was conducted on the University of Mines and Technology (UMaT) campus, using Geometrics ES 3000, A 12-Channel seismograph developed by Geometric Inc. The results from the study show that the subsurface of the study area is made up of four layers. …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 18–28 Read article
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Land Use and Land Cover Change Detection Study at Pennar River Estuary, Nellore District, Andhra Pradesh, Southeast Coast of India
Abstract: Coastal zones are the most valuable and dynamic places on Earth. A large portion of the world’s population has habitat coastal areas. Fertile coastal low lands, abundant marine resources, water transportation, aesthetic beauty and intrinsic values have long motivated coastal habitation. Two-thirds of the world’s fish catch, and many marine species, depend on coastal wetlands for their survival. The process of coastal morpho-dynamics has resulted in environmental problems such as …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 1, 2014 · pp. 1–9 Read article
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Performance of Buildings at Different Soils using Pushover Analysis
Abstract: Earthquake has been considered as the most devastating calamity which may lead to loss of lives and properties as seen in 2001 earthquake at Bhuj, India. In India various buildings has been designed irrespective of the effect of dynamic load corresponding to different kinds of soil condition. So, in this study an attempt has been made to analyse different types of buildings viz. G+4, G+8 and G+12 under different soil …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 2, 2014 · pp. 22–31 Read article
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An Integrated Application of Remote Sensing, GIS and VES for Artificial Recharging at Watershed from South Solapur Taluka, Solapur District, Maharashtra
Abstract: Over growing demand of water has led scientific community to plan augmentation of ground water by various methods. The objectives achieved in present study are to arrest run-off and silt flow, to facilitate infiltration of water. The study area considered is a small Micro Watershed from South Solapur District which is Drought prone zone. The study was an attempt to delineate the possible recharge zone for groundwater and also to …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 1–18 Read article
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Soil liquefaction vulnerability assessment of Sylhet city based on SPT value
Abstract: Bangladesh is an earthquake-prone country due to its geographic location. Sylhet, a divisional city, is situated in Zone IV, the most seismically active area in the country, according to the Bangladesh National Building Code (BNBC). A major earthquake can cause devastating effects in the subsurface, such as liquefaction, landslides resulting from a reduction of soil shear resistance. In this study, liquefaction potentiality of soil in Ward No. 9 of Sylhet …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 3, 2023 · pp. 13–28 Read article
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Evaluation and Analysis of Fire load in Storage Facility of Manufacturing Industry
Abstract: In recent years, industrial and residential fire is drawing more and more concerns. According to official government data, there have been numerous fire accidents in the industrial sector, leading to both casualties and significant property damage. Of particular concern are certain buildings in the pharmaceutical industry where large quantities of highly flammable and toxic substances are stored in confined spaces. This paper aims to examine the amount of flammable and …
Published in Journal of Industrial Safety Engineering · Vol. 10, Issue 2, 2023 · pp. 1–7 Read article
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Evaluation of J-Integral and Fatigue Crack Growth Rate of Semi-elliptical Crack in Compressor Blade
Abstract: Gas turbine compressor blades are subjected to centrifugal, gas bending and vibratory loads. This repeated loading and unloading can reduce the life of compressor blades. This research aims at the estimation of fatigue crack growth rate of various three-dimensional cracks in a compressor blade considering the J-integral calculations for a semi-elliptical crack, subjected to centrifugal loading. Static stress analysis was carried out to ascertain the critical region or crack zone …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 39–46 Read article
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Experimental Investigation of Effect of Laser Process Parameters and Heat Input on Hardened Bead Geometry and Power Density of ASTM Grade 3 Pure Titanium using CW Laser Beam
Abstract: This research paper presents the experimental study of laser process parameters and heat input on hardened bead profile of ASTM Grade 3 commercially pure titanium sheet of 1.5 mm thickness using 2kW CW Nd: YAG laser. The selected two laser process parameters are: (1). Low laser process parameter (LLPP): Laser Power (LP): 600 Watts, Scanning speed (SS): 2000 mm/min, Focused position (FP): -10 mm with heat Input (HI): 180 J/cm …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 42–52 Read article
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Anodic Polarization Study on Steel Bar in Concrete Powder Solution Extracts Contaminated with Chloride and Sulfate Salts
Abstract: In present work, anodic polarization tests are conducted on different steel specimens to find out corrosion zone potentials of various corrosion zones. The tests are done in the concrete powder solution extracts contaminated with the varying levels of admixed chloride and sulfate salts, at varying w/c ratios and cement types. The admixed chloride content is fixed at 3.5% and the sulfate content is used as 0, 2.5 and 5%, by …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 1, 2016 · pp. 22–28 Read article
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Effect of Tool Tilt on Formation of Tunnel in Friction Stir Welded 5083 Joints: An Experimental Study
Abstract: Friction stir welding (FSW) being a solid-state joining process is immune to the various defects faced in traditional fusion welding process. However, defects such as voids, joint line remnants and tunnel defects are common imperfections in FSW. In the present study, an attempt has been made to investigate the effect of tool tilt on the formation of tunnel defect, while keeping all other process parameters constant. Tool tilt is a …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 10–15 Read article
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Weldability of Ferritic Stainless Steel
Abstract: The ferritic stainless steels are generally considered less weldable than austenitic stainless steels. In case of welding of first-generation ferritic stainless steels, rapid grain growth of ferrite takes place in both the fusion zone and heat-affected zone. These coarse grains have very low ductility and toughness. Excessive grain growth can be avoided by using lower welding heat input and or certain types of additives. They are lower in cost and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 185–194 Read article
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Study on Hot Working Characteristics and Deformation Response of as Cast AZ91 Mg Alloys
Abstract: The deformation response of magnesium alloy AZ91 was investigated by means of hot compression tests. The flow curves were obtained in the temperature and strain rate range of 300–500°C and 0.001–1 s-1, respectively. The processing maps of the studied material were obtained by interpreting them on the basis of the dynamic material model. The activation energy maps were developed based on Lyapounov’s function and the safe processing zones were confirmed …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 112–122 Read article
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Fabrication of AA5182-Semis for Precise Components
Abstract: Al4.5MgMn alloy is known to show an excellent physical and mechanical properties as well as manufacturing and fabrication ease as semis, suitable for making precise components like hull of the light weight vehicles and seamless tubes. Present work has tried to describe the development of microstructure and texture of an industrial tandem hot rolled Al4.5MgMn alloy sheet after laboratory cold rolling and annealing. Crystallographic orientation dependent strengthening rate has been …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 3, 2021 · pp. 21–32 Read article
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Tribological Behaviour of En 31 Bearing Steel Against Altin, Alcrn and Crn Coated High Speed Steel
Abstract: Mechanical parts like bearing in modern machining systems are often subjected to wear and friction causing high heat generation at the interacting zones leading to reduced lifecycle and increased energy consumption of machinery. In this investigation friction and wear characteristics of bearing material EN31 steel against the CrN, AlCrN and AlTiN deposited on high speed steel as counter material is presented. Tribological tests are conducted on a pin on disc …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 97–108 Read article