Biomaterial Strategies for Immune System Enhancement and Tissue Healing
Qualitative and Quantitative Performance Optimization of Simple Gas Turbine Power Plant using Three Different Types of Fuel
Efficient Shopping: RFID-Powered Cart with Automated Billing System
Medical Drone System for Automated External Defibrillator Shock Delivery for Cardiac Arrest Patients
A Critical Review on Biodiesel Production, Process Parameters, Properties, Comparison and Challenges
Review on Deep Learning Based Image Segmentation for Brain Tumor Detection
Chemistry and Chemical Engineering: Approaches, Observations, and Outlooks
Integration of PMS Software and Decision Matrix Tool Based on Data Acquired from Latest IT Advanced Sensors and 3D CAD Models in Marine Operations Field
A Series of Tool-Life Studies on Aluminium Matrix Hybrid Composites
Dynamic Changes in Mangrove Forest and Lu/Lc Variation Analysis over Indian Sundarban Delta in West Bengal (India) Using Multi-Temporal Satellite Data
The Impacts of Climate Change on Water Resources in Hilly Areas of Nepal
An Analysis of Machining Forces On Graphite/Epoxy, Glass/Epoxy and Kevlar/Epoxy Composites Using a Neural Network Approach
Deformation Behaviour of Fe-0.8%C-1.0%Si-0.8%Cu Sintered P/M Steel during Powder Preform Forging
A Series of Tool-Life Studies on Aluminium Matrix Hybrid Composites
Achieving Manufacturing Excelence by Applying LSSF Model – A Lean Six Sigma Framework
Design and Analysis of Piezo- Driven Valve-Less Micropump
The challenges facing the supply of potable water and the environmental nuisance that wastewater discharge is provoking in Nigeria cannot be underestimated. While most of the previous studies focused on industrial wastewater treatment, this study identified the challenges of domestic wastewater reclamation and reuse in Nigeria; assessed the methods of reclaiming domestic wastewater and examined the effects of reclaiming and reusing domestic wastewater in Nigeria with a view to providing information that will enhance the sustainable reuse of wastewater in Nigeria. The study used primary and secondary data. Primary data was collected from seven selected wastewater treatment plants in different geopolitical zones and Abuja municipal. It was sourced using site visits and google forms. Data collected include the challenges of reclaiming domestic wastewater, the method of reclamation, level of treatment operating and current ways of reusing domestic wastewater in their organization/estate, knowledge of domestic wastewater reclamation and reuse, ways in which reclaimed domestic wastewater can be reuse in Nigeria and effects of reclaiming and reusing domestic wastewater in Nigeria. The data were analyzed using frequency, percentages, content analysis and mean score (MS). Finding reveals that the major challenges of wastewater reclamation and reuse in Nigeria are: cost (it is capital intensive), erratic power supply, shortage of skilled personnel, sewage collection problem and ineffective public sewer while the methods of reclamation in use are activated sludge (extended aeration), anaerobic digestion, oxidation ponds and membrane filtration respectively. Furthermore majority of the wastewater treatment plant employed the tertiary level of treatment. The result of mean score showed that the effects of reclaiming and reusing domestic wastewater in Nigeria were to prevent breakout of waterborne diseases (MS=4.93), to prevent environmental pollution (MS=4.88) and rapid urban population growth (MS=4.85). The study also revealed that agricultural purposes should be the major way of reusing wastewater in Nigeria based on the analyzed data .The study concluded that breakout of waterborne diseases and environmental pollution are the major reasons why Nigeria should reclaim and reuse the domestic wastewater.
This paper talks in great detail about the hazards in fireworks industry and makes an attempt to reduce hazards arising because of it. Fireworks makes festivals colorful but are more vulnerable to fire and explosion hazard. This is due to the highly reactive chemicals involved in fireworks manufacturing. The study deals with analysis of past incidents of fireworks industry. As more than 90% workforce has no formal education and lack of knowledge about the chemicals used in the manufacturing of fireworks and limited research makes the fireworks a high hazardous area. This study involves Job Safety Analysis (JSA) of most hazardous operation of aerial fireworks manufacturing. In this paper each step of manufacturing processes are analyzed and proper control measures have been recommended. Here Job safety Analysis helps to carry out the systematic evaluation of job and aids in identifying the previous undetected hazard so that elimination or reduction of the risk would be to as low as reasonable practical boosting safety and health awareness among the employees.
Obtaining natural frequencies and accompanying mode shapes are key to acoustic design of structures such as aircraft bodies. The design of such structures using Functionally Graded (FG) thick plates is quite complex because the behaviour is not often properly predicted. Hence in this paper, it is proposed to apply finite element analysis procedure for obtaining the dynamic flexure behaviour of functionally graded thick plates. The first order shear deformation theory which is a very good start up for analyzing bending behaviour for thick plates was followed. The graded plates are made up of Al and Al2O3 combination. Graded Finite Element Method (FEM), which accommodates for continuous variation in material properties of the elements was resorted to for the numerical analysis. MATLAB code was tailored for obtaining free vibration solutions, accommodating the material property variation in thickness direction. A parametric study with different power-law indices, thickness ratios and support conditions on non-dimensional frequency parameter was performed.
This paper describes how an investigation on unsteady Magnetohydrodynamic (MHD) free convective flow of a viscous incompressible electrically conducting fluid past an exponentially accelerated vertical ramped temperature plate in porous medium with radiation absorption effects is carried out. In addition, the first order chemical reaction is assumed in the flow. Under Boussinesq approximation, the exact solutions for momentum, energy and concentration equations are made in closed form using the Laplace transform technique. The solutions for isothermal plate were also obtained to compare it with that of ramped temperature plate. The expressions derived for skin friction, Nusselt number and Sherwood number are evaluated numerically and their analysis with different flow parameters is evaluated and concluded through tables. This study presents that the profiles of fluid velocity and fluid temperature are higher in case of isothermal plate in comparison to ramped temperature plate. Also fluid velocity and fluid temperature increases under radiation absorption effects but shows decreasing patterns under chemical reaction. Further the drag at the plates is found to be increased with radiationabsorption whereasthepresenceofchemicalreaction reducesthedrag. But therate of heat transfer phenomenon at the plates has adverse effects as that of drag in the presence of radiation absorption and chemicalreaction. Also the chemical reaction in the flow has enhanced the rate of mass transfer at the plates.
Erosion is a physical and chemical breakdown of rock that occur due to weathering phenomenon. This study aimed to estimate soil loss in Ranchi district using Revised Universal Soil Loss Equation (RUSLE) model with integrated approach of Geo informatics. RUSLE model uses rainfall and runoff, soil erodibility, slope length, slope steepness, cover and management factor and support practice factor. These factors can be generated using remote sensing satellite data, rainfall product and soil map provided by NBSS and LUP. By using RUSLE model it is observed that soil erosion of Ranchi district is between 2 – 30 tons/hec/yr. Major soil erosion is in Burmu, Angara, Tamar, Bundu, Namkum block of Ranchi district. Maximum area lies between 2 – 5 tons/hec/yr erosion.
For the cost effective and safe operation of ships and other marine assets it is mandatory to develop a software tool solution, which help with in timely maintenance and is priority based to avoid both financial losses and operational downtime. The idea is to propose a combined system for both planned Maintenance and decision matrix. Hence, the aim of this paper is to focus on combining a decision tool matrix with a Planned Maintenance System in order to provide clients with a total solution and incorporate client's requirements for Maintenance and Spares Inventory system. An earlier research study paper discussed how the Decision Matrix act as a tool developed to show how it can be a useful option for real Marine and offshore assets and their locations. In the earlier research paper, the Decision Tool software explained various options, for example: (Various types of floating ships such as Windfarm, Seafarms, Hydrogen plant etc.) and how to install and operate safely and cost effectively at various sea locations against a variety of important categories such as existing structure, location, regulations, Liabilities, Environment, Societal, conversion operations and New Assets.
Vibration on the flow system has great effects in terms of heat transfer augmentation and uniformity in temperature across the section of circular pipe. In this paper, effect of vibration on the flow system has been summarised for different flow condition for Newtonian fluid, non-Newtonian fluid, and compound effect of vibration and nanofluid. Effect of flow velocity, vibration amplitude, vibration frequency, and rheology of fluid on the heat transfer enhancement has been presented under the vibration. Vibration could be able to reduce boundary layer veryswiftly and it promotes radial mixing of fluid because of the secondary velocity component on the flow system.It has been found that nanofluid application under vibration could be able to increase heat transfer 300% than the steady-state flow.
