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1184 articles for “dense”
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Effect of Particle Size of Sand on the Interface Shear Behavior of Sand and Non-Woven Geotextile
Abstract: Soil-geosynthetic interface is the weakest zone for shear failure. It is influenced by size, shape, density and water content of sand. It is also influenced by the properties of geosynthetic such as texture and structure. This paper explores the influence of the size of sand on the behavior of sand-geotextile interface. Three types of sands namely coarse, medium and fine sand and non-woven geotextile were used in this study. Several …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 3, 2021 · pp. 44–54 Read article
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Experimental Investigation of Different Type of Soils with Addition of Geofibers
Abstract: Strength is important factor for stability of structure tо meet sрeсified engineering requirements оf sоil аnd to mаke it mоre stаble. For this purpose, certain engineering рrорerties are required tо be altered/changed. Based on the literature available, In the present study, аn exрerimentаl investigation is undertаken tо investigаte the effeсt оf addition of geofibers in different proportions (0.0-2.0% by weight) with two fiber lengths of 6 mm and 12 mm …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 2, 2021 · pp. 13–20 Read article
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Shear Strength Behavior of Different Soils
Abstract: The magnitude of shear strength of soils plays a major role in determining bearing capacity of shallow footings, frictional resistance for piles, stability of slopes, etc. for the safe and economic design of civil engineering structures. Based on the ideas of different researchers, shear strength of clay can be improved either by mixing sand or gravel, silty sand with gravel, and sand either with silt or gravel or granulated blast …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 1, 2022 · pp. 1–5 Read article
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Expansive Soils and Identification Methods
Abstract: Expansive soil is a well-known type of difficult soil. It can cause critical damage to civil engineering facilities. The unfavorited physical, mineralogical, and engineering characteristics are the main reasons for the difficult nature of expansive soil. Understanding specific parameters and properties of expansive soil are important to categorize and identify swell potential. Furthermore, reviewing the most useful methods for identifying and measuring the expansive soil characteristics may help the engineer …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 2, 2022 · pp. 39–37 Read article
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Assessing the Poisson Ratio of Reinforced Earth under Static and Dynamic Stresses
Abstract: Poisson’s ratio is an essential property of the soil strength and it is a measure of the amount of lateral strain in the soil sample caused due to the longitudinal strain of the soil. An attempt has been made in the present work to detect the variation in the Poisson ratio for reinforced and asphalt stabilized soil when tested under static and dynamic compressive stresses. Soil embankment model was prepared …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 50–56 Read article
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Investigation of Rock Dust Suitability as Improvement Material of Subgrade and Sub-base Laterite Material of Elerinjare, Kwara State, Nigeria, in Pavement Construction
Abstract: The current study involves the improvement of laterite soil by addition of granite dust. The laterite and dust used for the study were collected at Elerinjare town, Ilorin. The analyses were done in a laboratory. The tests are compaction test, specific gravity, California bearing ratio (CBR) (soaked and unsoaked), Atterberg's limit, Sieve analysis, and bulk density. In this investigation, an attempt was made to stabilize lateritic soil using quarry dust …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 2, 2023 · pp. 41–57 Read article
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Pneumatic Car: Solution to Fossil Fuels
Abstract: AbstractUse of conventional source of energy such as petrol, diesel etc. has rapidly affected the environment by means of rapid emission of greenhouse gases such as NOx, SOx,CO2 etc. These modern sources of energy are readily available thus their consumption has increased over the years and it is assumed that after 30 years these conventional sources of energy will be completely exhausted from the modern arena, also there will be …
Published in Journal of Industrial Safety Engineering · Vol. 5, Issue 1, 2018 · pp. 18–27 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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Mapping of Arkavathi Reservoir using IRNSS Receiver
Abstract: AbstractThis paper is mainly focused on a mapping application using ISRO (Indian Space Research Organization) developed Navigation system IRNSS (Indian Regional Navigation Satellite System). The IRNSS user receiver is mounted on a mobile vehicle and taken for a field survey. The main objective is to study the water body of the Arkavathi reservoir in all three different modes (IRNSS, GPS and hybrid) of operation. The altitude variations are also considered …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 2, 2019 · pp. 1–10 Read article
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Investigation on Direct Torque Control of BLDC Motor Using Various Controllers
Abstract: BLDC Stands for brushless DC Motor. Direct torque control is a type of a vector control. Direct Torque control consist of two control loops one is speed control and other one is torque control. For the purpose of speed control several speed controllers are used in this work such as PI, PID Controller and Fuzzy Controller. PID Controller was used for better speed response, no steady state error but due …
Published in Journal of Instrumentation Technology & Innovations · Vol. 11, Issue 2, 2021 · pp. 19–30 Read article
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Comparative Study of Dry, Wet and MQL Lubricating Method on Aluminium 7075 Using Vertical Milling Machine
Abstract: In present time the technology of CNC vertical milling machine has been improved significantly to meet the advance requirements in various manufacturing fields, in which the major contribution is of biomedical field, automobile field and aerospace industries, so while machining to get better surface finish generally lubrication method is used, which also helps to maintain the temperature near interface of tool and workpiece. If the traditional cooling method is used …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 1, 2021 · pp. 12–19 Read article
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Millimeter Wave Slotted Microstrip Patch Antenna for Next Generation 5G Communication
Abstract: Abstract: In this paper, a printed microstrip patch antenna is analyzed for lower band 5G technology. The proposed printed Microstrip patch antenna has a compressed structure having dimension 20 × 20 × 1.6 mm3 with the conducting ground plane and this antenna is well suited for the use in handheld next generation 5G devices. Modified antenna resonated at lower band of 5G communication technology. In this research work geometry of …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 1, 2019 · pp. 25–30 Read article
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A Comprehensive Survey on Massive MIMO Systems
Abstract: During the last decades with the mobile data traffic exponentially growing, demands for increased cell density or increased number of antennas per access point. Massive multiple input multiple output (MIMO) was found to be one of the solution for the ever increasing data traffic demand. However due to the inter cell interference and largely varying quality of service , massive MIMO lacks to meet the expectations of the demands of …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 6–21 Read article
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Survey on Analysis and Simulation of Permanent Magnet Synchronous Motor (PMSM) under Vibration Effect using Analytical Magnetic Field Calculations
Abstract: In several application domains, induction motor drives have been steadily being replaced in recent years by permanent magnet synchronous motor (PMSM) drives. Due to the compactness, efficiency, resilience, reliability, and shape adaption to the working environment of PM motors, this is starting to become a trend. In high performance applications demanding quieter operation, permanent magnet synchronous motors are widely used. Instead of torque ripples and cogging torque, electromagnetic forces are …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 2, 2022 · pp. 26–33 Read article
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Study on GP Zones Formation in the Sc Inoculated Ternary Al-Zn-Mg Alloys
Abstract: Mostly, ternary Al-Zn-Mg (7075) alloys are used in automotive and aerospace engineering due to readily age-hardening response and high specific strength-to-density ratio. Scandium (Sc) has great inoculation effect in Al-Zn-Mg alloys. The cast Al-Zn-Mg alloys system undergoes a complex transition sequence in order to gain maximum strength. This sequence consists of solutionizing then immediate quenching in water (T4), natural ageing and artificial ageing (T6); usually, in several temperature steps to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 2, 2016 · pp. 53–69 Read article
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Green Manufacturing with Steel Swarf
Abstract: The industrial sector drives nearly one-third of global energy demand, with most of this energy used to produce bulk materials. However, the rate of recycling of metallic materials is much higher than non metallic ones, especially when the scrap is heavy. But in very loose swarfs the transformation rates are poor, and processes are unsustainable. To improve the life productivity of bulk materials, and also lower the specific energy consumption, …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 21–31 Read article
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Correlating the Damage Behaviour of Polymer Composites with the Potential Energy of the Impactor
Abstract: Design of structures using composites requires comprehensive evaluation and characterization of mechanical properties in both undamaged and damaged state. Composite laminates undergo combinations of mechanical loading resulting into microdamage accumulation in the plies. The first mode of damage is usually intralaminar cracking with the crack plane transverse to the middle plane of the laminate, spanning the whole width of the laminate. The density of cracks in a ply depends on …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 1–9 Read article
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Mechanical and Micro-structural Properties of Friction Stir Welded Dissimilar Joints of Aluminium Alloys
Abstract: Abstract In this work, the microstructure and mechanical properties of friction stir welded dissimilar joints of 6101-to-6063 aluminium alloys were evaluated. Tool with round pin profile was fabricated of high speed steel material which was suitable for friction stir welding of aluminium alloys. Under monotonic tensile loading, an increase in the joint strength was observed with the increase in the tool rotational speed. The micro-hardness of friction stir zone increased …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 16–22 Read article
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Assessment of Carbon Fibre (CF) and Carbon Nanotube (CNT) as Supercapacitor Electrode on Surface Activated Nickel Foam
Abstract: In present paper, an attempt has been made to compare the potential of two different carbon-based materials, Carbon Fibre (CF) and Carbon Nanotubes (CNT), as electrode materials. These two materials are compared against each other in terms of their dimensions, volume of deposition on Nickel foam and their performance under Cyclic Voltammetry (CV). It was observed that owing to the dimensions of the depositing material, CNT (nano-sized carbon) electrode reflected …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 2, 2023 · pp. 10–14 Read article
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Improved TOPSIS for Al-SiC Composite Material Selection
Abstract: This paper proposes a novel Multi-Criteria Decision-Making(MCDM) method for attaining accurate and reliable results on Al-SiC composite material selection. Many of the existing researches suggested some methods for determining weights for criteria objectively and dealt with various mathematical models for eliminating inter-criteria correlation. However, they still involve some considerable shortcomings not fitting in the reality. In this paper, in order to determine the weights of criteria, methods for both subjective …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 12–25 Read article