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1973 articles for “standardized DRDC-STR submarine geometry” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Metamaterial-Based Thermal Shielding Structures for Reusable Hypersonic Space Transportation Systems
Abstract: The rapid development of reusable hypersonic space transportation systems has intensified the need for advanced thermal protection technologies capable of withstanding extreme aerodynamic heating conditions encountered during atmospheric re-entry and sustained hypersonic flight. Conventional thermal shielding materials often suffer from high structural weight, limited adaptability, thermal fatigue, and degradation under repeated thermal cycling. This study proposes a novel Metamaterial-Based Thermal Shielding Structure for Reusable Hypersonic Space Transportation Systems, integrating engineered …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Evaluating the Effect of Carbon Fillers on the Mechanical Properties of Jute and Epoxy Composite Wind Turbine Blades
Abstract: Natural fibers are a sustainable substitute for synthetic materials because of many benefits, which include light weight, biodegradability, renewability, and affordability. An approach to sustainable blade design that shows promise is its use into wind turbine blades. The study focuses on jute/epoxy composite's tensile strength, impact strength, water absorption, void fraction and degradation with carbon fillers and apply in making small wind turbine blades. To fabricate the composites, two jute …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 191–203 Read article
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POLYMER AND COMPOSITE-BASED GEOSYNTHETIC REINFORCEMENTS FOR SEISMIC STABILITY OF SOIL RETAINING STRUCTURES: MATERIALS, MECHANICS, AND PERFORMANCE REVIEW
Abstract: Geosynthetic materials based on polymer and composites have become important items for the structural performance and seismic resilience of the reinforced soil retaining systems. Mechanically stabilized earth walls in recent geotechnical engineering practice are increasingly based on enhanced polymeric reinforcements for enhanced tensile strength, durability, flexibility, and energy dissipation under dynamic loading. High-density polyethylene, polypropylene, polyester, and fiber-reinforced polymer composites are usually used. The present review focus on the recent …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Self-Healing Structural Polymer Composites Incorporating Bio-Inspired Nanofillers
Abstract: Self-healing polymer composites become an attractive family of intelligent materials that are capable of autonomously repairing damage, which will enhance their durability, reliability and service life in extreme engineering applications. The materials are based on the principles of nature, using the nanofillers that are derived from biological systems to improve mechanical properties and self-healing capabilities by utilizing hierarchical structures and multifunctional interface interactions. The recent developments on the formulation of …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Recovery of Struvite from Java Plum Leaves
Abstract: AbstractBio-degradation and leaching of java plum leaves liberates phosphate and can be recovered as struvite. Quantity of P2O5 obtained recoverable is 0.3009 g of P2O5/kg of leaves. Concentration of NaOH, ammonia, Magnesium sulphate was varied in aliquot. Process optimum variables were 12 g of 1N NaOH, 15 ml liquor ammonia, 5 g of magnesium sulphate yields 9.398 g of P2O5/kg of leave.
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 2, 2015 · pp. 5–14 Read article
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Economical Speed Characteristics in a 4 Stroke SI Engine using CNG, Petrol Blend
Abstract: Increasing need of energy and its effective utilization, reduced fuel consumption and increasing output power has become major aspect in engine development and research. As non-renewable fuels are depleting day by day, there is a necessity of using alternative fuels. CNG is one of the alternate fuels. Idea of this work is to blend gaseous fuel with liquid fuel and find the performance. We implemented this in bike (4 stroke …
Published in Journal of Automobile Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 12–17 Read article
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STRATEGIES FOR TRANSFORMING OIL AND GAS SECTOR FOR ECONOMIC GROWTH AND ENVIRONMENTAL SUSTAINABILITY IN NIGERIA
Abstract: There is great demand for drastic transformation of oil and gas sector for optimal delivery,environmental safety, and economic growth in Nigeria. The ever-increasing demand and insufficient supply of oil and gas products in Nigeria has been a great challenge to her development. This paperhighlighted some strategies for transforming oil and gas sector in Nigeria. Recent annual report of department of petroleum resources were used as the basis for the investigation …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 12, Issue 2, 2021 · pp. 40–45 Read article
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PREDICTING THE COMPRESSIVE STRENGTH OF CONCRETE USING ANN IN MATLAB
Abstract: This research work focuses on the production of Artificial Neural Networks ( ANNs) in the prediction of concrete compressive strength after 28 days. The measurement of the compressive strength of concrete in situ by means of cores cut from hardened concrete is recognised as the most common technique, but the compressive strength of concrete is very difficult to predict because several factors affect it.In this paper , in order to …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 3, 2020 · pp. 46–52 Read article
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Influence of Mineral Admixture on Compressive Strength of Concrete
Abstract: The current paper shows the results of an investigation focused on the effect of metakaoline (MK) and silica fume (SF) on the compressive strength of concrete. The aim of the study was to investigate the effect of concrete compressive strength containing different percentage levels of metakaoline and silica fume on fresh and mechanical properties of the concrete. Pastes containing 0%, 5%, 10%, 15% and 20% of metakaoline and silica fume …
Published in Journal of Construction Engineering, Technology & Management · Vol. 2, Issue 1-3, 2012 · pp. 42–47 Read article
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An Overview Study on CO2 Absorption in High-strength Concrete
Abstract: Today, global warming is a major issue facing all over the world. The main reason behind an increase in the effect of greenhouse gas. The emission of carbon dioxide (CO2) from the construction industry contributes 9% to increasing greenhouse gas therefore it is our responsibility to work on the reduction of CO2. In this paper, we study CO2 absorption by using zeolite powder in concrete as a partial replacement for …
Published in Journal of Construction Engineering, Technology & Management · Vol. 12, Issue 3, 2022 · pp. 11–17 Read article
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Stress and Deformation Analysis of Rotating Cylindrical Pressure Vessel of Functionally Graded Material Modeled by Mori-Tanaka Scheme
Abstract: The present study deals with the linear elastic analysis of rotating cylindrical pressure vessels. The vessels are made up of one directional functionally graded material (FGM), in which mechanical and physical properties are varying along the radial direction. The analysis is carried out using finite element method which is based on the principle of stationary total potential (PSTP). Material properties are graded according to the Mori-Tanaka distribution law and ceramic-metal …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 1–7 Read article
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Isogeometric Topology Optimization of Continuum Structures using Evolutionary Algorithms
Abstract: Isogeometric analysis is a popular method for the analysis of problems involving complex geometry and governed by differential equations. Meta-heuristics are widely used to determine the optimum distribution of material within the given design domain. The focus of this study is to perform isogeometric topology optimization of continuum structures using meta-heuristics nature inspired firefly algorithm. NURBS basis functions are used to construct the geometric model and to calculate the displacements …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 8–18 Read article
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Stress Analysis of Two-Dimensional Functionally Graded Thick Rotating Disks by Element Based Material Grading
Abstract: The present study reports the stress and deformation analysis of thick rotating disks made of two-dimensional functionally graded materials (FGMs). The analysis is carried out using element based gradation of material properties in radial and axial direction over the discretized domain. Material properties are distributed according to power law distribution and the governing equations are derived using principle of stationary total potential (PSTP). The resulting deformation and stresses are evaluated …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 1, 2017 · pp. 28–36 Read article
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Strength Behavior of Expansive Soil Treated with Lime
Abstract: AbstractThe main objective of the soil stabilization is to increase the bearing capacity of the soil. Unstable soils can create significant problems for pavements or structures. Therefore soil stabilization techniques are necessary to ensure the good stability of soil so that it can successfully sustain the load of the superstructures, especially in case of soil which are highly active; also, it saves a lot of time and millions of money …
Published in Journal of Geotechnical Engineering · Vol. 4, Issue 1, 2017 · pp. 25–30 Read article
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Determination of Bearing Strength Characteristics of Fine and Coarse Cohesive Soils from its Index Properties
Abstract: The variation in geology, cost and complexity in the preparation and testing for strength characteristics of soils from location to location has challenged geotechnical engineers to make optimum use of empirical formulas to predict bearing strength characteristics of soils. One major One major One major One major One major One major problem associated with bearing capacity of soil includes the different engineering properties associated with different geologic formations which have …
Published in Journal of Geotechnical Engineering · Vol. 7, Issue 2, 2020 · pp. 1–12 Read article
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Development of A Systematic Strategy for Maintenance of Rural Road Network
Abstract: The lack of year round access to many rural communities is a serious constraint to social and economic development of rural road. Poor access limits the effectiveness of agricultural, commercial, educational and health initiatives though unreliable travel and high unit transport costs for crops, goods, services and people.. However, experiences have shown that these roads, although relatively cheap to construct, are often an unsustainable maintenance burden for many rural communities …
Published in Journal of Industrial Safety Engineering · Vol. 5, Issue 3, 2018 · pp. 1–7 Read article
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Interpretive Structural Modelling Apply to Green Supply Chain Management
Abstract: This study aims to investigate the green supply chain management (GSCM) practices likely to be adopted by the electronic industry of electronics products in India. The approach of the present research includes depth literature review about the current scenario of electronic industry in India and the relationship between GSCM practices and environmental performance. The electronics products industries in India were sampled for empirical study. The parameters were analyzed using “Interpretive …
Published in Journal of Industrial Safety Engineering · Vol. 2, Issue 1, 2015 · pp. 13–27 Read article
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Design of Street Light System Using PIC16F877A Digital Controller
Abstract: The program aims to save energy by recognizing vehicle movement on highways and activating. The clusterof streetlamps ahead of the car while shutting off the following lights. Sensors are required for the projectto activate the front lights and identify the car's motions. Our concept makes use of all the benefits thatLEDs have to offer, such as their quick switching speed, eco-friendliness, durability, and cool light output.As a result, at this …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 1–5 Read article
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Design and Simulation of E-Shape Micro-strip Patch Antenna at 2.45GHz
Abstract: AbstractThis paper presents comparison of rectangular micro strip patch antenna and E-Shaped micro strip patch antenna operating at 2.45GHz. Two parallel slots are made into the basic rectangular patch design of micro strip antenna which resulted into desired E-shaped patch. The basic design consist of inset feed type and we have used dielectric substrate Fr4 epoxy whereas E-shaped patch consist of coaxial probe and RT Duroid as substrate. Both the …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 1, 2020 · pp. 17–24 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