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2000 articles for “SP” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Risk Assessment of Polychlorinated biphenyls (PCBs) in Fish Samples from Otamiri River, Imo State, Nigeria
Abstract: The presence of Polychlorinated biphenyls (PCBs) in water poses human and ecological health risks in Nigeria. Polychlorinated biphenyls present in three fish species (T. Zilli, E. Fimbriata and C. Nigrodigitatus), and its related health risk via consumption of fish from Otamiri river in Imo State Nigeria has been duly investigated in this study. A risk quotient (RQ) for fish consumption was applied to evaluate the related health risk. A total …
Published in International Journal of Green Chemistry · Vol. 8, Issue 2, 2022 · pp. 10–19 Read article
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Experimental Study of Mechanical Properties Geopolymer Concrete.
Abstract: This experimental study aimed to define the parameters for optimum mix design of geopolymer concrete made by partial replacement of cement. The geopolymer concrete is nothing but the formation of fly ash and alkali activators. Fly ash is the waste product from the thermal power station and may use as the pozzolanic material. But, only fly ash is may not the only replacement for the cement, for the more binding …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Behaviour of Micropiles Groups Subjected to Vertical Loads
Abstract: Micropiles are used to reinforce soils and to support foundations. It may be installed in several directions through existing foundations so as to increase the bearing capacity of the soil and to reduce the settlement. The group effects of micropile groups subjected to vertical loads in granular soils have been investigated by many research workers. However the findings have been found to be inconsistent indicating contradictory group effects. Group behaviour …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 8, Issue 2, 2022 · pp. 1–13 Read article
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Finite Element Modeling of RC Beam Column Sub-assemblages Subjected to Column Loss Scenario
Abstract: Progressive collapse is a situation where a failure of whole or large part of a structure occurs that has been initiated by failure of a relatively small part of the structure such as failure of any primary structural element. When a vertical load carrying element, typically a column is lost, the loads that are supposed to pass through lost column need to be safely transferred to the adjacent elements to …
Published in International Journal of Structural Engineering and Analysis · Vol. 6, Issue 2, 2020 · pp. 1–20 Read article
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Influence of Compaction Technique on Shear Strength of Modified Subgrade Soil
Abstract: The subgrade soil is considered as the foundation for the roadway structure, it is responsible to provide the required stability for the overlaying pavement layers and to limit the deformation due to traffic load repetitions by furnishing homogeneous stress distribution. For poor soil condition, grid reinforcement or Asphalt stabilization techniques are usually implemented to control the deformation and improve shear strength of poor granular subgrade soil. In this work, the …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 4, Issue 1, 2018 · pp. 17–25 Read article
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Optimization of 3D Printed Two-wheeler Suspension System
Abstract: The suspension is the very important criteria of a two-wheeler in order to improve the comfort for the operator or rider of the two-wheeler. In most of the two-wheeler’s shock absorbers are used as a suspension system to smooth out or damp shock impulse and dissipate energy by use of spring’s compression and relaxation property. The system consists of a spring which allows the frame and vehicle intact while riding …
Published in International Journal of Analog Integrated Circuits · Vol. 4, Issue 2, 2018 · pp. 51–57 Read article
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Ingenious Parking System based on IoT
Abstract: The internet of Things (IoT) is in a position to attach billions of devices and services at any time in anywhere, with various applications. Recently, the IoT became an emerging technology. A metropolitan city has over a million of cars on its roads but it does not have enough parking space or it is difficult to seek out a parking lot. However, this paper proposes a modern solution to such …
Published in International Journal of Broadband Cellular Communication · Vol. 7, Issue 1, 2021 · pp. 9–13 Read article
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Design & Implementation of Parking System based on Microcontroller
Abstract: The development of smart cities has become very trendy in recent years. The IoT gadget that is deployed on-site as part of the suggested smart parking system is utilised to track and signalise the existence of a particular parking space. This research introduces a coordinated IoT-based architecture for an effective and simple method of parking the automobiles by determining the slots' availability. The IoT module used to monitor and signalise …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 8, Issue 1, 2022 · pp. 19–25 Read article
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Simulating Controlled Reluctance Motor
Abstract: The objective of the study is to control an ultra-high speed switched reluctance motor generator. Ansys simulation process is used here to achieve sensor less control over the entire speed range. Different rated speeds are applied, and inductance profiles are found. A full speed range sensor less closed-loop control system is implemented using current gradient measurement. To obtain sensor less control over the entire speed range, the open-loop control and …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 5, Issue 2, 2019 · pp. 41–48 Read article
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Model Simulation & Resource Allocation in Cognitive Radio System
Abstract: Cognitive radio is the technique where different sorts of wireless communication devices work dynamically and change frequencies and other parameters over time. The idea of cognitive radio (CR) is to find means to use these “gaps” or “holes” in the frequency spectra and do something useful of the frequencies floating around unused and the goal of cognitive radios is to utilize under used spectrum as spectral resources are becoming sparts. …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 2, Issue 1, 2016 · pp. 14–17 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Mathematically Modeling of PV-Wind Hybrid System
Abstract: The study of hybrid (Photovoltaic and wind) generation is used system which is consist of 1 kW wind and 1 kW PV. The solar radiation data and wind data of the School of energy Environmental studies from D.A.V.V Indore are analyzed for sizing of the renewable energy system. The output power of a wind turbine at a specific location depends on many factors, the amount of available energy increases with …
Published in International Journal of Energetic Materials · Vol. 8, Issue 2, 2022 · pp. 10–17 Read article
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Metallurgical and Machinability Characteristics of Wrought and Selective Laser Melted Ti-6Al-4V
Abstract: This examination work shows a machinability ponder between created review titanium and specific laser softened (SLM) titanium Ti-6Al-4V in a face turning operation, machined at cutting paces in the vicinity of 60 and 180 m/min. Machinability attributes, for example, device wear, cutting powers, and machined surface quality were examined. Covering delamination, attachment, scraped spot, steady loss, and chipping wear instruments were overwhelming amid machining of SLM Ti-6Al-4V. Greatest flank wear …
Published in International Journal of Metallurgy and Alloys · Vol. 3, Issue 1, 2017 · pp. 9–12 Read article
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Preparation of Diclofenac Sodium Loaded Invasomes - A Novel Carrier for Drug Delivery
Abstract: Background: Diclofenac sodium is capable of providing benefit to patients suffering from: rheumatoid arthritis, osteoarthritis, and gout. Diclofenac sodium is a medicine that reduces inflammation and pain. It is also used to treat aches and pains, as well as problems with joints, muscles, and bones. The aim of the present work is to prepare diclofenac sodium invasomes by thin film hydration technique. Methodology: In the present study, for the preparation …
Published in International journal of Nanobiotechnology · Vol. 7, Issue 1, 2021 · pp. 45–50 Read article
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Performance of High Volume Fly Ash Concrete Using Local Power Plant Fly Ash
Abstract: Total production of fly ash in Indian Thermal Power plants is approximately 160 million tons annually. Except some super power plants, the quality of fly ash is said to be inferior in most of the power plants. The suitability of fly ash from local power plants for production of high volume fly ash (HVFA) concrete is not tested so far. The aim of the present investigation is to ascertain whether …
Published in International Journal of Composite and Constituent Materials · Vol. 1, Issue 1, 2015 · pp. 07–13 Read article
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The new method of composite materials production
Abstract: The existing methods for production, for example, polymer composite materials: the pressing (direct, injection, profile), the injection molding (injection, intrusion, centrifugal molding, and autoclaving), the extrusion, the pultrusion, the contact molding, the winding, vacuum molding and pneumatic molding do not permit to reach the main goal of the production of unique composite materials with a basis (matrix) filled by uniformly distributed filler (armoured element), having high strength and rigidity. The …
Published in International Journal of Composite and Constituent Materials · Vol. 5, Issue 2, 2019 · pp. 18–22 Read article
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A Review: Multipurpose Seed Sowing Machine
Abstract: The present review provides transient info concerning the varied varieties of innovations tired seed sowing instrumentality. the essential objective of sowing operation is to place the seed and plant food in rows at desired depth and seed to seed spacing, cowl the seeds with soil and supply correct compaction over the seed. The comparison between the normal Sowing technique and also the new projected machine which might perform variety of …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 1, 2020 · pp. 1–5 Read article
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Enhancing the Heat Transfer in the Thermal Chimney by Attaching the Fin under CFD Analysis
Abstract: The primary and secondary heaters in heat exchangers were numerically evaluated at nominal temperatures of 140°C for the primary heaters, 100°C for the secondary heaters, and 20°C for the ambient temperature in order to validate the design idea for enhancing the air temperature. The “convective heat transfer” of air in a thermal chimney built to laboratory size using two different types of electrical heaters and a rectangular cross-section of constant …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 9–26 Read article
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A Review on Layer Formation Studies in Selective Laser Melting of Steel Powders and Thin Wall Parts Using Pulse Shaping
Abstract: This paper advances the conclusions of the selective laser melting (SLM) of tool steel and stainless steel powders. The characteristic feature is the melting of single layers in deep powder beds by a continuous CO2 laser. First, effect of development parameters on the surface roughness for each material is examined. Based on these results combined with visual observation of the solidified tracks, the question is then discussed as how the …
Published in International Journal of Manufacturing and Materials Processing · Vol. 3, Issue 1, 2017 · pp. 9–15 Read article
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Impact, Flexural, and Hardness Properties of AISI 1018 Mild Steel Butt Joint Welded using Gas Metal Arc Welding (GMAW) under Various Welding Parameters
Abstract: AbstractThe effects of welding parameters such as welding current, voltage, and travel speed on the impact, flexural, and hardness properties of AISI 1018 mild steel using Gas Metal Arc Welding (GMAW) were investigated. In this research, specimen sizes of 500 mm x 10 mm x 10 mm and 5.5 mm x 10 mm x 10 mm were fabricated according to ASTM standards. In addition, a v-groove had been prepared at …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 6–13 Read article