Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

The Actuarial Conditions for the Valuation of Pension Liability to Become Zero Under Minimum Funding Standard Architecture

Abstract Pension  valuation  exercises  for  a  defined  benefit  scheme  requires  an  appraisal  of  both  the  schemes  assets  and  its  liabilities  in  different  circumstances.  The  valuations  are  required  to  comply  with  regulatory standards, most notably the minimum funding standard. The objectives of this study are: (i) to compute  the  estimate  of  minimum  funding  standard  of  pension  liability  (ii)  to  establish  the  actuari...

Generation of Kifilideen’s Generalized Matrix Progression Sequence of Infinite Term

Considering a cluster of different hierarchical order with various barrier or cadre levels and steps within levels, there is no availability of a structural framework to help exclusively analyze, formulate, identify, differentiate, and design standardized provisional values to cluster members at various barrier levels and steps within levels. This study designs stepwise analysis, generation, and applications of Kifilideen’s Matrix Structural Framework for an infinite term of increasing...

Blockchain Technology into Online Voting Systems

In an era marked by technological advancements and a growing demand for secure and transparent electoral processes, the integration of blockchain technology into online voting systems has emerged as a promising solution. This research paper presents a comprehensive exploration of the design, implementation, and implications of an online voting system built upon blockchain technology. Through an in-depth analysis of existing electronic voting challenges and the potential of blockchain, this pa...

Source identification, pollution status, and ecological risk assessment of heavy metals contamination in a highly populated unplanned industrial area (Wadi El-Qamar), Alexandria, Egypt

Based on the contents of heavy metals (Co, Cr, Cu, Fe, Mo, Mn, Pb, and Zn) in 22 road dust samples, the urban environmental quality of Wadi El-Qamar area was evaluated. It is a residential area suffering from unplanned industrial activities, overpopulation, and uncontrolled urbanization. Heavy metal sources and geochemical associations were deciphered using a multivariate statistical approach, while the contamination degree and ecological risks were identified using various pollution indices....

Adsorption and Kinetic Optimization Study of Acetic Acid from Aqueous Solutions Using Activated Carbon Developed from Vernonia amygdalina Wood

In this study, the adsorption of Acetic acid from an aqueous solution is investigated using activated charcoal prepared from Bitter leaf (Vernonia amygdalina) that is activated by tap water. Carbonizations at different activation temperature with constant flow of air are used to examine for accepted accessibility of sorbent material. The optimum  conditions obtained from this batch adsorption experiments highest adsorption capacity is recorded at activation temperature=400°C, contact ti...

Synthesis of ZnO nanoparticles mediated by natural products of Acanthus senniileaf extract for electrochemical sensing and photocatalytic applications: a comparative study of volume ratios

Determination of various chemical nutrients present within food samples using green nanomodifed carbon paste working electrode (GNM-CPWE) is a novel and cost-effective technique. In addition, wastewater treatment in the presence of high surface area green nanocatalysts attracts researchers worldwide. In the present study, zinc oxide nanoparticles (ZnO NPs) were synthesized by using Acanthus sennii leaf extract within three volume ratios as 2:3 (40 mL precursor: 60 mL extract), 1:1 (50 mL ...

Biosynthesis and Optimization of ZnO Nanoparticles Using Ocimum lamifolium Leaf Extract for Electrochemical Sensor and Antibacterial Activity

In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized using an aqueous extract of the Ocimum lamifolium (O.lamifolium) plant. The I optimal coordinate exchange random response surface methodology (RSM) was used to optimize the effect of the zinc acetate precursor, temperature, and time on ZnO NPs by designing nine runs. From ANOVA analysis, the significance and validity of the designed models showed that the optimal values of the zinc acetate precursor, temperature, and time d...

A Review on Advancements of Nanocomposites as Efficient Anode Modifier Catalyst for Microbial Fuel Cell Performance Improvement

Non-renewable energy sources produced from natural coal and oil may result in climate change and global warming as greenhouse gases are to the environment. This is why the main utilization of energy sources on renewable and alternate green energy  to deliver power. Thus, a microbial fuel cell device is one of the cost-effective and environmentally friendly energy conversion devices that uses renewable organic wastes as fuel source and converts this stored chemical energy in to useful b...

Latent Fingerprint Enhancement Techniques

Fingerprint (FP) is a global mark used for personal identification. This study reviews recent latent fingerprint (LFP) enhancement techniques  including metal oxides, multi-metal deposition (MMD-I/II/SMD/Au-ASP), optical, chemical, physical, and physicochemical. Furthermore, analytical techniques involved in identification, evaluation, and determination of pieces of evidence, and perpetrators including the SEM, TEM, UV-Vis, IR/NIR, SERS, SKP, DLS, MALDI-MSI, and TD analysis were also dis...

Determination of hydrocarbon potentials in parts of Sokoto Basin, Northwestern Nigeria using spectral analysis technique

ABSTRACT In this work, an attempt was made to estimate the depth to magnetic source and by inference, the thickness of sediments within parts of the Sokoto Basin, Northwestern Nigeria. Aeromagnetic data of Tambuwal (Sheet 50) was acquired, processed and interpreted. The regional field was separated from the total magnetic intensity (TMI) and the magnetic anomaly was obtained. The anomaly map was upward continued and divided into overlapping square grids of 27.5 km x 27.5 km. Spectral depth an...

Geochemical Baseline and Pre‑Mining Environmental Assessment of Heavy Metals at Iron Exploration Area, Northeastern Aswan, Egypt

With the emphasis that the study area is a highly mineralized area with high potential for future mining projects due to large iron ore reserves, a total of 21 soil surface samples were investigated in terms of toxic heavy metals (Pb, Cr, Ni, Cu, Zn, Co, and As) using ICP-OES to determine the metal concentrations, define the geochemical baseline during pre-mining conditions, decipher metal sources and their interrelationships using multivariate statistical analysis, and evaluate the contamina...

Development and Operations (DevOps)

ABSTRACT DevOps is the collection of cultural practices, philosophies, mechanisms, and technology that assists in increasing the ability of an organization to distribute services and applications at a faster pace. Unlike the traditional software development and infrastructure management processes (also known as the Waterfall Model), DevOps is inspired from the Agile Project Management, meaning that the entire project is broken down into several phases, aiming for continuous improvement at eve...

Stepwise Analysis and Generation of Kifilideen Matrix Structural Framework for Infinite terms of Kifilideen Generalized Matrix Progression Sequence

Considering a cluster of different hierarchical order with various barrier/cadre levels and steps within levels, there is non availability of structural framework to help to exclusively analysis, formulate, identify, differentiate and design standardized provisional values to cluster members at various barriers levels and steps with levels. This study invents stepwise analysis and generation of Kifilideen matrix structural framework for infinite terms of increasing elements of successive co...

DEVELOPMENT AND EVALUATION OF THE PERFORMANCE OF CERAMIC WATER FILTER PREPARED FROM DRIED DUCKWEED PLANT

ABSTRACT: Most of the available water sources such as streams, rivers and wells have been impaired by anthropogenic activities thereby rendering them unsafe for consumption. This has made access to clean potable water a mirage to communities situated in the semi urban areas, hence, increasing their daily risk of contracting water borne diseases. This work initiates the treatment of these water sources with dried duckweed plant. The duckweed plant was prepared and incorporated into a ceramic w...

Using Petro-physical Parameters and Rock Attributes Derived from 4-D Seismic to Locate By-Passed Oil in an offshore area of Bonny Field, South-South of Nigeria.

Abstract  A 4-D seismic data comprising of two 3-D seismic volumes acquired at different vintages were successfully applied to identify the presence of by-passed oil opportunities in the water-driven reservoirs in an offshore area of bonny island in south-south part of Nigeria. Cross-plots of rock attributes from well data were carried out to validate their sensitivity to reservoir fluids and lithology and to constrain the interpretation of the time lapse inversion results. 4-D inversion of ...


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