Environmental & Physical Sciences

Environmental & Physical Sciences Research Papers/Topics

Biological Materials, Synthesized Iron Oxide Nanoparticle (Wonderful kola seeds), their Prospective Application and their Socio-economic Relevance

This research article briefly describes the experimental utilizations of plant or organic material (wonderful kola seeds) for the synthesis of iron oxide nanoparticles in a bid to understudy their applications and economic relevance. Furthermore, the characterization details were theoretically, chemically and statistically analyzed for data generation to compare with other data set, in line with nuclear applications and energy generation. Data obtained from the experimental procedure wer...

The Challenges and Impacts of Implementing Development Control Regulations in Rural Settlements of Enugu State

ABSTRACT Implementation of development control regulations has many challenges and impacts in rural Enugu State of Nigeria. This study focuses on the challenges and impacts of implementing development control regulations in rural settlements of Enugu State. Development control in rural Enugu State is ineffective due to building developers’ little or non-compliance with contravention notices served on them. The planning authorities in Enugu State have lacked the needed development control me...

Climate Model Simulation and Projections of Precipitation Changes Over West Africa

ABSTRACT Changes in precipitation characteristics have been identified to exert profound socio-economic consequences over West Africa. This study analysed climate model simulation and projections of precipitation changes over West Africa using the Norwegian Earth System Model (NorESM with Lat-Lon resolution of 1.89° by 2.5°). The skill of the model in reproducing the observed precipitation was evaluated for the present-day (1980-2005), its bias and relationship was determined using satellit...

Development of Products from Sorrel (Hibiscus Sabdariffa) and Evaluation of Their Nutrients, Phytochemicals, Antinutrients, Toxicants, Physico-Chemical, Sensory and Storage Properties

ABSTRACT The objectives of the study were to develop products from sorrel calyces, leaves and seeds, evaluate the products for nutrients, phytochemicals, antinutrients, food toxicant, physicochemical, microflora, sensory, storage properties and compare the products produced with existing products. Dry red sorrel calyces, leaves and seeds were used for the study. Pilot study was carried out to standardize recipe used for the formulation of the products. The products developed were jelly, cordi...

Impact of Torre faction on the Fuel Properties of Lignite, Coconut Shells, Cassava Peels and Their Blends

ABSTRACT The effect of torrefaction temperature and residence time on the fuel properties of lignite, biomass (coconut shells and cassava peels) and their blends was investigated. The samples were subjected to three torrecfaction temperatures (200, 260 and 300o C) and at two residence times (10 and 20 minutes) using programmable muffle furnace. Blends of torrefied lignite and biomass were prepared in two different ratios (80:20 and 70:30). The energy content, proximate and ultimate analyses o...

Boat Terminal, Port-Harcourt “A Study of Circulation”

ABSTRACT Rivers State, The ‘Treasure Base Of The Nation’ and a commercial nerve centre of the Nation has over the years been confronted with the problem of rapid growing human and vehicular traffic congestion. This problem is largely caused by the rate of rural-urban migration of people into Rivers State. In fact, recent statistics have shown that over 10,000 people enter Rivers State on a daily basis. This figure results to an estimated five million people that move around Rivers State o...

Contributions to Operator Theory and Applications

Abstract This thesis consists of two parts. The first part deals with existerice and approximation techniques for finding solutions of operator equations or fixed points of operators belonging to certain classes of mappings. The classes of mappings studied include the K-posztz~~e definzte operators, the suppressive mappings and accretive-type rntippings. In particular, it is proved that for a real Banach space X, the equation Au = f, f E X, where A is a Kpd operator with the same domain as A'...

Evaluation of the Fuel Properties and Thermal Efficiency of Sub-Bituminous Coal-Biomass Blends

ABSTRACT The improvement of the combustion properties of coal and biomass by blending and carbonization was investigated. Proximate and ultimate analysis of coal, sawdust, corn cob and their blends were carried out using ASTM methods. The proximate and ultimate analyses were repeated on the five blends after carbonization at 500o C for one hour. Ten mixtures of coal-sawdust and coal-corn cob blends were made into briquettes using starch binder. The calorific values of the samples were determi...

Orange Juice Bottling Company, Owerri, Imo State. (Enhancing Functionality Through Circulation and Safety)

ABSTRACT Research has shown that the popularization of plastic bottles in Bottling Industries has remained on the increase since middle of 1960’s, when high-density polyethylene was introduced. They quickly became popular with both manufacturers and customers due to their lightweight nature and relatively low production costs compared with glass bottles. Except for wine or beer, the food industry has almost completely replaced glass with plastic bottles. Despite this innovation, there has c...

Socio Economic Impacts of the Invasive Typha Domingensis on Local Communities Along Nguru Wetlands, Yobe State, Nigeria.

ABSTRACT The study was conducted in the months of July-September 2017 to assess the socioeconomic impacts of the invasive Typha domingensis (Uchytil 1992) on local communities in Nguru, Kakori and Dogon Kuka towns all along the Nguru wetland in Nguru Local Government Area, Yobe State, Nigeria. A total of 171 respondents comprising of local communities and officials of the Hadejia Nguru Wetland Conservation Project (HNWCP) and Komodougu Yobe Basin Wetlands Development Initiative (KYB-WDI) part...

Waste Disposal and Groundwater Quality in JimetaYola Area, Adamawa State, Nigeria

ABSTRACT. Waste disposal and groundwater quality studies were carried out in the Jimeta- Yola area. The area lies between latitudes 9'1 1'N to 9'20'~ and longitudes 12'23'~ to 12'33'~~ and covers an areal extent of about 305km2. Groundwater quality monitoring was carried out through the collection of water samples from hand-dug wells, boreholes and leachates beneath refuse dumps. These samples were analyzed chemically and bacteriologically using atomic absorption spectrophotometer (AAS), DW20...

Impact of Household Solid Waste Disposal Practices on the Environment of Enugu Metropolis, Nigeria.

ABSTRACT This research is aimed at determining the impact of household solid waste disposal practices on the environment of Enugu metropolis. This is with a view to developing appropriate strategies for improving solid waste disposal system in Enugu metropolis. The objectives of the study were to: (i) examine the existing nature of household solid waste disposal practices in Enugu metropolis, (ii) identify the pattern of household solid waste disposal practices, (iii) identify the environment...

Mothers’ Knowledge, Practice of Exclusive Breast Feeding and Anthropometric Indices of Their Infants in Aba South Local Government Area, Abia State, Nigeria.

ABSTRACT This study assessed mothers’ knowledge, practice of exclusive breastfeeding and the anthropometric indices of their infants in Aba south local government area, Abia state, Nigeria. Five hundred (500) lactating mother-child pair randomly selected during their postnatal care visit in six out of seventeen health centers in the LGA participated in the study. Ethical clearance was obtained from the chief medical officer in the LGA and mothers’ consent was sought through the clinic hea...

Evolving the Criteria for Writing Nigerian Architecture History Using Historiographical Approach

ABSTRACT Since independence in 1960, notable works of Nigerian architecture scholars and practitioners have been recorded, but practically little progress has been made in the area of architectural knowledge documentation. Architectural knowledge encompasses a vast array of ideas, which are basically classified into architectural theory, history, criticism, technology, environmental conditions, and these (subcategories) culminate in the material culture of a people. This research focuses on a...

Concentration of Cadmuim, Lead and Chromium in Human Whole Blood

Abstract Human whole blood samples obtained from blood banks in different hospitals in Enugu State were analyzed for cadmium, lead and chromium concentrations using atomic absorption spectrophotometric method. The results of the analysis showed that about 72.7% of the samples had cadmium concentrations more than the limit of safe exposure (5ug/l of blood). Also about 18.2% of the samples had the concentrations of lead to be more than the maximum permissible limit in adult human blood which is...


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