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148 articles for “constituent”
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Application of Fly Ash and Lime as Partial Replacement of Cement in Concrete
Abstract: Concrete as a construction material plays a significant role in infrastructures development in the world. The main constituents of concrete are cement, fine aggregate, coarse aggregate, and water. Production of cement has been emitting a huge amount of carbon dioxide in the atmosphere. Hence causing environmental pollution. Amount of fly ash generation has been increasing day by day which has also been damaging the environment in the form air, water …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 41–45 Read article
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A New Model for Prediction of Wellbore Stability Using the Three Dimensional Hoek–Brown Failure Criterion
Abstract: Wellbore stability is one of the crucial issues in oil and gas industries. The issues related to instability of wells, impose significant unwanted costs on drilling operation.The objective of this paper is to present the 3D-wellbore stability prediction models for vertical wellbores. The three dimensional Hoek–Brown strength criterion developed by Zhang and Zhu conjunction with linear poroelastic constitutive model is utilized to develop the models. This models leads to easily …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 3, Issue 2, 2017 · pp. 10–15 Read article
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Flexure of Thick Fixed Beams Subjected to Varying Load using Shear Deformation Theory
Abstract: A refined shear deformation theory for flexural analysis of thick beams, considering transverse shear deformation effects, is developed. The number of variables as in the first order shear deformation theory is kept in present theory. The important feature of present theory is that the transverse shear stresses can directly be obtained using constitutive relations. The theory does not demand shear correction factors. The principle of virtual work is used to …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 1, 2016 · pp. 23–31 Read article
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Flexural Analysis of Thick Beam Subjected to Sine Load Using Refined Shear Deformation Theory
Abstract: A Hyperbolic Shear Deformation Theory (HPSDT) taking into account transverse shear deformation effects is used for the static flexure analysis of thick isotropic beams. The displacement field of the theory contains two variables. The hyperbolic sine and cosine function is used in the displacement field in terms of thickness coordinate to represent shear deformation. The transverse shear stress can be obtained directly from the use of constitutive relations, satisfying the …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 2, 2016 · pp. 8–19 Read article
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Structural Behavior of Railway Bridges Against Wheel Loading by Finite Element Analysis
Abstract: Three dimensional numerical investigations carried out on railway bridges using ABAQUS/Explicit finite element program. The length of bridge 30 m and single track was considered in the present study. The bridge members such as main girder, cross girders and truss members are designed according to Indian Railway Standard (IRS) and the geometry of the rail was also modeled according to the standard. The constitutive and fracture behavior of materials have …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 1–14 Read article
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Effect of Aggregate Shape and Binder on the Rutting Characteristics of Bituminous Mixes
Abstract: Rutting or permanent deformation is the depression in the wheel paths due to accumulation of small amounts of unrecoverable strains under the channelized repeated wheel loads. Shear deformation or lateral plastic flow of the bituminous mix from the wheel tracks also results in rutting. Performance of bituminous mixes is influenced by the constituents of the mix made of aggregates and binder. Among various parameters of these two ingredients, aggregate shape …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 3, Issue 1, 2017 · pp. 1–6 Read article
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Seepage and Slope Stability Analysis of Earthen Dam: A Case Study of Lebu Dam, Ethiopia
Abstract: Seepage and Slope stability are a matter of remarkable concern in the construction of earthen dams where the failure of slopes may incur a severe loss of life and damage to property. The most important factors that cause instability of slope and lead to failure are gravitational force, the force due to seepage of water, sudden lowering of water adjacent to a slope and force due to earthquake. This study …
Published in International Journal of Water Resources Engineering · Vol. 7, Issue 1, 2021 · pp. 52–70 Read article
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Trends and Techniques of Software Cost and Performance Measurement
Abstract: Software measurement is an evolving aspect of software engineering providing the necessary support to plan, execute, control, and improve the software development process. However, Software metrics constitute a set of acceptable variables of measurement encompassing diverse activities that require some level of quantification of which cost, and effort estimation are inclusive. This study was aimed at reviewing the various trends and techniques in software cost and performance measurement. The study …
Published in International Journal of Software Computing and Testing · Vol. 8, Issue 1, 2022 · pp. 6–12 Read article
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Discovery of Materials through Applied Machine Learning and General Machine Learning Architecture
Abstract: Advances in artificial intelligence technologies, especially machine learning, have generated possibilities in the material sciences to facilitate material exploration and to achieve a profound understanding of the relationship between the constituent elements of the material and the properties represented by the material. The application of machine learning to the exploration of experimental materials is sluggish due to the monetary and temporal costs of experimental data, however parallel methods, such as …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 2, 2020 · pp. 48–57 Read article
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Studies on Molecular Electronics
Abstract: This article is study of molecular electronics to circumvent usual scope, as of, lithographically adjective constitutive proclaim. Molecular electronics has been interdisciplinary study among physics, chemistry, and material science. Ethical has been to unify feature as molecular building block fabricate to assign as electronic components. Lithographic removal of bulk has reticulated synergism under miniature scope scheme i.e., growing individual molecular block by chemical process. Thus, top-down lithography has substitutive apt …
Published in International Journal of Analog Integrated Circuits · Vol. 7, Issue 2, 2021 · pp. 1–4 Read article
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Risk Assessment of Flood for Various Spatial and Temporal Mining Scales Using Flood Vulnerability Index [FVI] – A Case Study of Madhubani Kosi River Flood Affected District in North Bihar, India
Abstract: Several countries experience fatalities, injuries, property damage, economic and social disruption resulting from natural disasters. The natural hazards kill thousands of people and destroy billions of dollars’ worth habitat and property each year. The rapid growth of the world’s population has escalated both the frequency and severity of the natural disasters. Flood disaster has a special place in natural hazards. Floods are the costliest types of natural hazards in the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 20–29 Read article
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Power Quality Enhancement in 3P4W Electrical Distribution System by using DCMLI-DSTATCOM-TIES with Reliability Study
Abstract: The Quality of the output power from the utilities has become a serious concern of the trendy industries. These power quality associated issues area unit voltage sag, surge, flicker, voltage imbalance, interruptions and harmonic issues. These power quality issues might cause issues to the industries starting from haywire of kit to finish plant close up. It’s been known that power quality will be degraded each owing to utility aspect abnormalities …
Published in International Journal of Electrical Power System and Technology · Vol. 3, Issue 1, 2017 · pp. 16–33 Read article
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Automatic Water Management System for Society and Home Using Arduino
Abstract: The most vital natural resource that humans require is water. Water is a necessity for humans in practically every aspect of life, including bathing, cleaning, and laundry. But as the world's population is constantly growing, the supply of clean water is shrinking. Technology is frequently created to make it easier for individuals to complete certain tasks. As a result, the technological revolution typically starts the cultural upheaval. The use of …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 8, Issue 2, 2022 · pp. 29–35 Read article
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A Microstrip Rat-Race Coupler for Narrow-Band Operation in the X-Band
Abstract: This paper proposes, designs, describes, analyses, and simulates a novel microstrip rat-race coupler for narrow-band operations in the X-band (8 GHz to 12 GHz), namely the 9.5 GHz to 10.3 GHz sub-band. This proposed four-port passive microwave device was realized utilizing microstrip technology with pure copper (lossy) being used as a metal in the conducting layers (transmission and ground plates) and Rogers TMM6 (lossy) being used in the dielectric layer. …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 18–22 Read article
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Performance Investigation of Grating-based Photovoltaic Concentrator
Abstract: This paper elaborates the performance investigation of Grating based Photovoltaic Concentrator.Grating principle is used in the proposed concentrator photovoltaics (CPV). In this method a sidemountedconcentrator solar module structure is designed in which grating prism is used forconcentrating sunlight on solar cell. Diffraction grating is an optical device composed of a large number of closely spaced parallel slits or rulings. These rulings act as a series of narrow, closely spaced apertures …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 9, Issue 1, 2023 · pp. 22–28 Read article
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Nanofertilizers – A Revolutionary Fertilizer for Sustainable Agriculture
Abstract: Because of the inadequacy in arable lands and water resources, the improvement of agriculture segment is only promising by increasing of resources use efficiency with the least destruction to production bed through effective use of modern technologies. Among these, nanotechnology has the prospective to transform the agricultural structures, biomedicine, environmental engineering, safety and security, water resources, energy conversion, and various other areas. Nanostructured design through mechanisms such as targeted supply …
Published in International Journal of Applied Nanotechnology · Vol. 1, Issue 1-2, 2015 Read article
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Properties of Nano-scale Material
Abstract: Nanomaterials (NMs) have gained prominence in technological advancements due to their tunable physical, chemical and biological properties with enhanced performance over their bulk counterparts. Nanomaterials can be divided based on their shape, size and their origin. Properties of nanomaterials play a major role in the production and maintenance of these materials.Because of expanded development of production of NMs and their role in industrial applications, their issues related to their toxicity …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 11–15 Read article
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Preparation of Cu2O/ZnO Heterojunction Thin Film Solar Cell grown by RF Magnetron Sputtering
Abstract: Both cuprous oxide (Cu2O) and zinc oxide (ZnO) hold a very important position in the fields of materials science due to great potential in many acoustic, electric and optical applications. Cu2O, a direct-gap semiconductor with band gap energy of 2.0 eV has been regarded as one of the most promising materials for application to photovoltaic cells, especially for the top cell in a tandem structure. The attractiveness of Cu2O and …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 27–30 Read article
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An Overview of Explosions and Impact of Explosives Materials
Abstract: An explosive is a material, either a pure single substance or a mixture of substances, which is capable of producing an explosion by its own energy. It is not proper to define an explosive as a substance, or a mixture of substances, which is capable of undergoing a sudden transformation with the production of heat and gas. The production of heat alone by the inherent energy of the substance which …
Published in International Journal of Energetic Materials · Vol. 3, Issue 1, 2017 · pp. 11–18 Read article
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MATLAB Simulation Processes on Pneumatic Force-Balance Transmitter
Abstract: A pneumatic force balance transmitter in which an input force proportional to the fluid flow rate being measured is applied to a force bar pivoted about a transverse axis to produce a torque. A rebalance torque is applied to the bar by means of a negative feedback loop, in which a pneumatic detector functions to sense any change in bar position, the detector output being amplified to produce a pneumatic …
Published in International Journal of Energetic Materials · Vol. 6, Issue 1, 2020 · pp. 25–32 Read article