ABSTRACT This work aimed to study the effects of crude oil variation on the performance of a crude distillation unit (CDU). CDUs are generally designed for specific type of crude oil. However, the crude oil varies with time as a natural result of continuous reservoir depletion. The CDU of Khartoum refinery was taken as a case study. Data covering the period 2002 to 2012 was collected. The collected data include crude oil assay, feed and products flow rate, and CDU design and operation data. ...
ABSTRACT The study addressed the gap in research on heuristics in valuation which has hitherto been confined to only anchoring and adjustment heuristics at the neglect of the other three major types of heuristics, namely availability, representative and positivity heuristics. The aim of this work was accordingly to investigate the nature and conduct of all four types of heuristics amongst Nigerian valuers with a view to ascertaining possible effects on valuation accuracy. The specific object...
ABSTRACT In the face of deteriorating quality of housing environment in urban areas in developing countries, including Nigeria, the need for strategies that can help reverse this trend cannot be overemphasised. It is in search for such strategies to improve the quality of residential environment that the assessment of housing quality in mass housing estates has continued to engage the attention of scholars and researchers within and outside Nigeria. However, there has been very little attemp...
Abstract Despite the essential role of housing as a basic need, an adequate supply of this commodity has been observed to be lacking in virtually all societies throughout history. This study investigated the knowledge and user-acceptability of Compressed Stabilized Laterite Bricks (CSLBs) as an alternative building material for affordable housing in selected states of southwest Nigeria. The research investigated the impact of knowledge, income level, education level and aspiration for s...
A school is an educational institution, which is an organization founded and united for a specific purpose of passing on education to people of particular ages, qualifications and other categories. Such institutions include pre-schools; nursery, elementary and secondary schools; and further or higher educational institutions like universities, colleges and trade schools or vocational colleges (Wordnet, n.d.). The different forms of education given to students of educational institutions inclu...
ABSTRACT The concerns for sustainability in architectural education have become the subjects of global discussion which has prompted the stakeholders into researches, debates, negotiations, declarations and policy formulation in Nigeria and other parts of the world. The curriculum of architectural design studio has been based on design studio model which focuses on “learning by doing”. In the course of advancement for the best practices, some revolutionary practices evolved over time as ...
ABSTRACT Transportation systems. and the ro utes .they use have greatl ~ influenced both how and where people live. Rel iab le transportation allows a population to expand throughout a country 's territory and to live comfortably in remote areas far from factories and farms. Transport in one form or another is a basic and essential part of the daily rhy thm of life . At different stages of development, however, and in different sets of circumstances, the nature of the demand for tran sport i...
An experiment was undertaken in NM-AIST farms in Arusha Tanzania from January to July 2017 to assess the potential of pesticidal plants on supporting the beneficial insects, controlling pests’ and influencing bean growth and yield. Six treatments were evaluated. This included: bean plots imposed close to the following field margin pesticidal plants: 1) Tephrosia vogelii, 2) Lantana camara, 3) Tithonia diversifolia and 4) Lantana trifolia 5) positive control treatments sprayed with synt...
Abstract We find two new classes of exact solutions to the Einstein-Maxwell system of equations. The matter distribution satisfies a linear equation of state consistent with quark matter. The field equations are integrated by specifying forms for the measure of anisotropy and a gravitational potential which are physically reasonable. The first class has a constant potential and is regular in the stellar interior. It contains the familiar Einstein model as a limiting case and we can generate ...
ABSTRACT Lake Natron is among the basins of the Eastern branch of the East African Rift located in Northern Tanzania. The main objective of this study was to establish the spatial variation of sediments thickness and to delineate the subsurface structures that control the configuration of the basement and their implications for hydrocarbon potentiality. The study utilized both aeromagnetic and gravity data in achieving the objectives. Two dimension gravity modelling, Euler deconvolution of a...
ABSTRACT Facies geometry, stratigraphic configuration, structural style, hydrocarbon type and distribution within the paralic Agbada Formation of Middle to Late Miocene age across several fields in the Eastern part of the Coastal Swamp depo-belt were studied using regional 3D seismic, wire-line well logs and biostratigraphic data. The study involved analyses of sequence stratigraphic framework across nine fields using information obtained from twenty- four wells. Ten major stratigraphic boun...
ABSTRACT Churches are compendia of symbols. The celebrations which take place in them enact these symbols. Their interpretation cannot be improvised but is a product of the interpretation given by the Church throughout its history and in its teaching and liturgy. 1be Church turns to the more widely used symbols of religious language to express its faith and dispose each person to receive its vision of the churches. The Symbols of the Church offers a beautiful and thoughtful introduction to t...
ABSTRACT Laser scanning technology has grown to become a useful surveying tool in many industries in the last decade. Laser scanning is now used in many areas such as surveying, engineering, mining, architecture, archaeology, crime investigation and control, agriculture, historic documentation, industrial pipe plant surveys etc. A laser scanner is a powerful surveying tool that is able to survey and record about 50,000 (fifty thousand) points in a second. This gives today’s surveyors the o...
Abstract Pressures on protected areas (PAs) in Tanzania are increasing through the extractive use by surrounding communities. Understanding how environmental reliance varies in relation to distance from PAs and in relation to household’s socio-economic characteristics is important for PAs management and decision of poverty alleviation strategies. This study therefore aimed to quantifying the reliance on cash environmental income as a share in total household income over a gradient of dist...
ABSTRACT One of the major problems confronting Enugu urban today is poor solid waste disposal practice. In spite of the efforts made by the government to address the problem, there has been no remarkable solution. This study centered on the assessment of solid waste disposal practice among neighbourhood in the study area. The aim of this study was designed to (1) Examine the methods of solid waste disposal and management practice among neighbourhood. (2) To investigate the frequency of solid...