Search
395 articles for “Change Rate”
-
A Study on the Impact of GPS-Derived Tropospheric Delay over some Nigerian Stat
Abstract: The effect of GPS-derived tropospheric delay on radio propagation oversome Nigerian stations is examined. The stations are located in the African equatorial region, and include: Abuja (8.9°N, 7.4°E), Akure (7.3°N, 5.2°E), Enugu (6.5°N, 7.5°E), Lagos (6.5°N, 3.4°E), and Port Harcourt (4.8°N, 7.0°E). This is the first study in the African equatorial region that uses in-situ meteorology measurements as well as GPS satellite measurements to present the impact of tropospheric delay …
Published in Research & Reviews : Journal of Space Science & Technology · pp. 10–21 Read article
-
Comparison of Tuning Methods of PID Controllers of Two Conical Tank System of Interacting Type
Abstract: The rapid increasing complexity of modern control systems has accentuated the idea of applying new modern approaches in order to solve design problems for various control engineering applications. This paper deals with the tuning of PID controllers for complex nonlinear process of two interacting Conical Tank Systems. Conical tanks play vital role in leaching extractions in pharmaceutical and chemical industries, as well as in food processing industry. It is a …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 3, 2014 · pp. 8–14 Read article
-
Hand-Writing Recognition Using Structural, Statistical Features
Abstract: One of the very crucial challenges in pattern recognition operations is handwriting recognition, often known as handwritten number recognition. The processing of bank checks, the sorting of postal mail, the entry of data into forms, etc. are all procedures involving number recognition. The ability to create an efficient algorithm that can retrieve handwritten integers submitted by drug users via a scanner, tablet, and other digital gadgets is at the core …
Published in Journal of Electronic Design Technology · Vol. 14, Issue 1, 2023 · pp. 8–14 Read article
-
Discrete Hidden Markov Model based Face Recognition System Introducing Sustainability of Uneven Lighting Distortion
Abstract: The aim of this work is to enhance the performance of appearance based face recognition system to remove the uneven lighting effect which is generally occurred in natural environment. Active Shape Model has been used to detect the facial shape and contrast based edge detection technique has been applied to reduce the uneven lighting problem. Linear Discriminant Analysis has been used to reduce the dimension of the facial feature vector. …
Published in Trends in Electrical Engineering · Vol. 4, Issue 1, 2014 · pp. 9–16 Read article
-
A Study on Power Analysis Based Side Channel Attacks On Advanced Modes of AES
Abstract: Advanced Encryption Standard (AES) is the most popular symmetric block cipher algorithm. The commonly used mode of operation in AES is the Electronic Code Book (ECB) mode. In the past, side channel attacks have been shown to be effective in breaking the secret keys used with AES, while AES is operating in the ECB mode. AES defines a number of advanced modes (Cipher Block Chaining - CBC, Cipher feedback – …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 4, Issue 2, 2016 · pp. 12–20 Read article
-
Life Cycle Costing of Water Treatment Plant in the Nashik City
Abstract: Abstract Life Cycle Costing (LCC) is a valuable technique, which is used for predicting and assessing the cost performance of the assets. This paper has presented the Life Cycle Costing (LCC) of 50 MLD Water Treatment Plant (WTP) located at Nilgiri Bagh, Nashik which was constructed and started operating in July, 2015. The study period for the LCC analysis is taken as 30 years. The main objectives of the paper …
Published in Journal of Water Pollution & Purification Research · Vol. 3, Issue 1, 2016 · pp. 25–30 Read article
-
Physicochemical, Biochemical and Microbiological Characterization of Green and Black Tea during Storage in Different Packaging Materials
Abstract: The storage of tea is an important endeavor for tea industry. The appealing characteristics of this beverage are its aroma, taste, color as well as its antioxidant and antimicrobial qualities. The different manufacturing strategies for black and green tea affect the shelf life of different types of commercially available tea varieties. Different types of packaging alter the quality parameters of different tea clones. The quality parameters are assessed according to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 6, Issue 3, 2016 · pp. 5–30 Read article
-
Transformation of Cancer Cell into Normal Cell by Group Theory
Abstract: Cancer is studied in this paper by theory of group. Cancer is incurable by indefinite rate of change in the cell. Here cancer is defined as the algebraic structure with some properties for finding the unique objective i.e. curing the cancer. Curing the cancer disease is possible by the transformation of every cancer cell into normal cell by the group postulates in this paper. The biological structure is transformed into …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 9, Issue 1, 2022 · pp. 30–32 Read article
-
Identification and Management of Risk in Building and Infrastructure Projects
Abstract: Building and infrastructure projects are very large and complex in nature consisting of extensive risks. For the successful accomplishment of these projects, risk identification and management should be used effectively. This paper recognizes the critical risk factors related to building and infrastructure projects in India. Seventy risks were identified through an in-depth study of literature related to risk in building and infrastructure projects. These seventy risks were categorized into eight …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 2, 2020 · pp. 1–9 Read article
-
Effect of Improvement of Collapsible Soils with Bitumen Emulsions on Collapsibility Rate for Varying Degrees of Saturation
Abstract: Collapsible soils are one of many problematic soils in Iraq. Many foundation failure problems that occurred in Iraq are associated with percolation of water; the change in the degree of saturation can affect the stability of these soils and may encounter large volumetric change. A series of tests conducted on collapsible soil using oedometer apparatus and the settlement–time curves are determined accurately, then each test is determined to a different …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 1, 2016 · pp. 63–74 Read article
-
INFLUENCE OF CLIMATIC CHANGES ONTO THE PERFORMANCE OF ELECTRIC VEHICLES: APPLICATION TO DRIVING RANGE
Abstract: The paper has the goal of developing a methodological process to predict electric vehicle driving range under the influence of sudden temperature changes in intercity routes due to variable climatic conditions. The model is based on the combined effects of discharge rate and temperature changes on the performance of a lithium battery; the model predicts the driving range using the dynamic driving conditions to determine the Depth-Of-Discharge (DOD) at any …
Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 43–58 Read article
-
Mapping the Vulnerabilities of Coastline Cities and Communities in Africa to Adapt to Climate Change: A Study of Lagos-Nigeria
Abstract: The Lagos coastline is active in nature and is located about less than six feet above sea level and houses about half of 15 million people in Lagos state, and is vulnerable to changes in coastline due to flooding and erosion. Climate change has aggravated this; sea-level rise will increase the risk of storm surge flooding, and coastal erosion threatening coastal cities. The annual rainfall along the coastline of Lagos …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 1, 2020 · pp. 44–57 Read article
-
Aspen HYSYS Simulation of Suspension (Slurry) Process for the Production of Polyethylene
Abstract: AbstractThis study deals with the steady state simulation of polyethylene plant using Aspen HYSYS V10 simulation model. Looped reactor model is used to mimic the behaviour of the suspension (slurry) polymerization process. Effect of various operating conditions like the inflow rate of the monomer ethylene on solvent, catalyst, co-monomer and hydrogen flow rate are studied. Model predicted that the change in monomer flow rate linearly affected the process variables. Keywords: …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 31–34 Read article
-
Analysis of Ageing and Degradation Behavior of Polyamide-12 for Sustainable Additive Manufacturing
Abstract: Additive Manufacturing (AM), particularly High-Speed Sintering (HSS), has emerged as a transformative technology capable of producing complex thermoplastic parts with high efficiency and minimal material waste. The HSS process involves selective deposition of radiation-absorbing ink followed by infrared heating to consolidate polymer powders-most commonly polyamide-12 (PA12). While PA12 is widely used due to its excellent thermal stability and mechanical properties, the sustainability of HSS strongly depends on the reuse of …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 136–154 Read article
-
Numerical Investigation of Influence of Rate of Rotation on Formation of Vapor Around Two Heated Circular Cylinders Immersed in Water Inside a Channel
Abstract: AbstractThe complexity problem of fluid flow and heat transfer over an array of circular cylinders are common in industrial applications of the fluid dynamics. The complex nature of the problem encountered in industry, gives rise to certain significant dimensions in the fluid dynamics theory. Some of them are the fluid flow interaction, interferences in flow and vortex dynamics which are typically found in compact heat exchangers, cooling of electronic equipment, …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 3, 2017 · pp. 14–25 Read article
-
Landscape Classification of Sariska National Park (India) and its Environments using Geospatial Technology
Abstract: The relationship between land use/land cover (LULC) changes and land degradation over a period of 20 years (1989–2009) at Sariska National Park (India), and its environment was investigated using remotely sensed and ancillary data. The study analyzed the magnitude and direction of temporal LULC changes for two consecutive periods; 1989–2009. The temporal change patterns of LULC were analyzed through interpretation of LANDSAT imagery. Final land cover maps produced under four …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 1, 2018 · pp. 5–14 Read article
-
Minimization of Steady State Error of DC Motor Drive Using PID Controller
Abstract: As it is the time of advanced technology, machinery implementation is increasing very rapidly. Industries always work with the implemented technology which gives the fast and accurate response of the system. This paper includes the dc motor speed controlling using the PID controller. Close loop control system and electrical drives have the advantageous system for the technology. DC motor is used for getting best and easiest speed and torque control …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 2, 2018 · pp. 25–29 Read article
-
Design of a Process Plant for Dimethyl Ether Synthesis from Syngas Using Direct Method
Abstract: The search for alternative renewable and less polluting energy sources has gained prominence thus, there is an increasing interest in the use of Dimethyl Ether (DME) as a clean alternative fuel and raw material in the chemical industry. The simulation of a plant for the production of Dimethyl Ether from Syngas using direct synthesis method has been carried out in this work. The simulation was done using ASPEN HYSYS software. …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 44–59 Read article
-
A Consolidated Review on Novel Liquisolid Technique to Enhance Aqueous Solubility of Poorly Water Soluble Drugs
Abstract: Liquid technique is a novel capable method that can change the dissolution rate of water insoluble drugs. Liquid preparations such as solutions or suspensions of water unsolvable drugs in suitable non-volatile liquid vechicles can be transformed into suitable flowing as well as compressible powders by blending with selected powder excipients. It has been speculated that such systems exhibit improved release profiles. In this case, even though the drug is in …
Published in Research and Reviews : Journal of Computational Biology · Vol. 8, Issue 2, 2019 · pp. 1–4 Read article
-
A Study to Assess the Epidemiological Pattern and Risk Profile of Endometrial Cancer in Women
Abstract: Endometrial cancer is one of the most common gynecological malignancies affecting women worldwide, with its incidence showing a rising trend due to lifestyle changes, increasing obesity rates, and longer life expectancy. Understanding its epidemiological pattern and associated risk factors is essential for early identification and prevention. The present study was conducted to assess the epidemiological distribution and risk profile of endometrial cancer among women. A descriptive research design was adopted …
Published in International Journal of Oncological Nursing and Practices · Vol. 4, Issue 1, 2026 · pp. 8–12 Read article