bluuebunny/crossref_metadata_2025_split huggingface dataset:
Justification of impact and planning of technology efficiency on the basis of limy-emulsion formulation in low-permeability highly-rugged reservoirs of Tyumen deposits
Authors: Khokhlov V I , Galimov Sh S , Devyatkova S G , Kotenev Yu A , Sultanov Sh Kh , Mukhametshin V Sh 
Published: November 2019

Abstract
Justification of the effective chemical methods and technologies for oil production increase of highly rugged low-productive reservoirs is a relevant area of focus. The primary objective in this area is to justify the selection and planning of technologies of injection of chemical agents for field-geological factors of Tyumen deposits. Tyumen deposits are characterized by a high degree of heterogeneity of the structure and are represented by irregularly discontinuous interlensing of sandstones, aleurolites, clays and coals. High internal heterogeneity of the reservoir determines abnormally low permeability (on the average less than 6 mD) and weak pressure communication in the bed. Due to the complex geological structure there has been an intensive production decline, decreasing of injectivity and initially high water cut of production during well operation. In order to increase the production stimulation and injectivity at the operating wells, more than 50 exposure technologies have been tested. The main scope of work on wells with injectivity less than 120 m3/day is performed by injection of surfactant-containing and emulsion formulations. Factors determining the efficiency of applied technologies in Tyumen deposits were studied. It is necessary not only to consider and compare the achieved efficiency of certain technologies, but also to continue searching for new chemical formulations to increase oil production of highly-rugged low-productive reservoirs. The paper presented an algorithm for analyzing the results of operations conducted at the injection wells.
Elimination of uncertainties in predicting well interaction using indirect geological field information
Authors: Kuleshova L S , Mukhametshin V V 
Published: November 2019

Abstract
For different groups of wells of the West Siberian oil and gas province, algorithms for reducing the degree of uncertainty in predicting the interaction of production and injection wells using factor analysis methods and indirect geological information were developed. The boundary values of discriminant functions were established. They help divide production wells into interacting and non-interacting ones with a high degree of accuracy (up to 90%).
Total Quality Management Practices in Construction Project Delivery in South Africa
Authors: Aghimien D , Aigbavboa C , Thwala W , Mothiba H 
Published: November 2019

Abstract
Due to its ability to provide quality through effective management practices, Total Quality Management (TQM) has attracted significant attention in most academic discuss in recent times. This attention became necessary as a result of the overarching need to increase the quality of products being delivered within the Architecture, Engineering and Construction industry (AEC). Based on this knowledge, this study assessed TQM practices in construction project delivery in Gauteng, South Africa. The study adopted a quantitative approach through a questionnaire survey, and information was harnessed from construction participants involved in the delivery of civil engineering projects within the study area. The data gathered were analysed using percentage, mean score and standard deviation, while the reliability of the research questionnaire was tested using Cronbach alpha test. The findings of the study revealed that the most adopted TQM practices are customer focus, supplier quality management, strategic planning, and employee relations. In order to improve the adoption of TQM practices, measures such as ensuring customer involvement, top management involvement, and commitment, education, and training of engineers on TQM practices, effective customer-supplier relationship, effective communication (internal and external), and primary customer focus, are important. This study adds value to the body of knowledge as it gives an insight on the TQM practices being adopted in the delivery of civil engineering projects within the study area as well as the measures to be put in place in order to ensure improved adoption of TQM.
Critical Drivers for Health and Safety Management among SMEs in the Eswatini Construction Industry
Authors: Aghimien D , Aigbavboa C , Thwala G , Thwala W 
Published: November 2019

Abstract
This paper presents the result of an assessment of the critical drivers for proper implementation of H&S management practices within SMEs in the Eswatini (formerly known as Swaziland) Construction Industry (ECI). The need for a healthier and safer construction environment in the country necessitated the study. A survey approach was adopted for the study and quantitative data were gathered through the use of a questionnaire administered to construction participants within small and medium construction firms in Hhohho and Manzini provinces. Data analysis was done using percentage, and factor analysis, while the reliability of the questionnaire adopted was tested using Cronbach alpha test. Findings revealed that the critical drivers needed for H&S management practices to be effectively carried out among SMEs in the ECI are; creation and implementation of H&S plans, proper workers’ welfare, and government and client’s support. This study adds value to the body of knowledge as it showcases the critical drivers needed for the proper implementation of H&S management practices within the country’s construction industry; an aspect that has not gained considerable research attention within the country
Capacity of professionals in delivering sustainable construction in Nigeria
Authors: Akinshipe O , Oluleye I B , Aigbavboa C 
Published: November 2019

Abstract
Construction activities greatly contribute to environmental degradation and increased carbon footprint in the atmosphere. The need to mitigate these impacts has instigated the adoption of sustainable practices such as green building in various developed and rapidly developing countries. This study, therefore, measures the knowledge of Nigerian built environment professionals in the field of sustainable construction with a view to appraise how the local construction industry is performing in delivering sustainable development. The scope of the research is delimited to the construction professionals in Ondo state, Nigeria. This research adopted the survey research design and descriptive statistic was used to analyze the data which was sourced from the construction professionals via a close-ended questionnaire. Findings from the study revealed that a substantial percentage of the construction professionals in the study area do not really understand the fundamentals of sustainable construction practices thus impeding them from deploying it to construction projects. It is therefore recommended that efforts should be intensified in educating and developing construction professionals on the practicability of sustainable construction, so they can fully exploit the technology and ensure sustainability in the built environment.
Critical success factors (CSFs) influencing the implementation of industrialized building Systems (IBS) in Nigeria
Authors: Nduka D O , Fagbenle O I , Ogunde A , Afolabi A 
Published: November 2019

Abstract
Conventional method of construction hinders the actualization of triple success project objectives of time, cost and quality delivery of construction projects while IBS method is used for closing these negative effects. Hence, this study aimed at examining critical success factors (CSFs) influencing the implementation of industrialized building systems (IBS) in Nigeria. Adopting a cross-sectional survey design, a close-ended questionnaire was purposively administered online to construction professionals who have distinct knowledge and experience on projects where IBS has been implemented. The data was subjected to descriptive and inferential statistics using IBM SPSS v. 21. The study findings showed that good working relationship, training of skilled workforce, effective communication route and financial capacity are the CSFs furthering the implementation of IBS in a developing country like Nigeria. The implication for practice is for construction stakeholders to develop these competencies to maximally improve the implementation of IBS projects. The study developed a framework that the project stakeholders can implement for an efficient industrialized building system on construction projects.
Investigation of day light levels in a room within a building
Authors: Oguntosin V , Akindele A , Orimogunje A 
Published: November 2019

Abstract
This work investigates natural light levels inside a room in Electrical & Information Engineering building, Covenant University, Ota, Ogun State, Nigeria. In order to reduce the amount of energy used on lighting, it is imperative to make the utmost use of natural daylight. The use of windows are one traditional solution, other solutions are skylights and light pipes; atria and light wells; domes and arches; structural glass which are all discussed. In high temperature regions, it is necessary to reduce the amount of sunlight entering the room because light produces heat. With the use of a Light Dependent Resistor (LDR sensor), results are presented to study the day light levels in a room by measuring the light levels at various parts of the room; by measuring the proportion of light entering through the window and measuring how the light level changes over a 24 hour period. The outcome of this work is the study and development of a system that can monitor light levels in a building. The application of this work extends to determining the period of the day when daylight is maximal in order to reduce energy cost, building an automation system for the automatic lighting of dark areas within a building as well as monitoring energy consumption used to light p a building. Further extension will be to make predictions on the natural light level based on the data available.
Maintenance requirements of students’ residential facility in higher educational institution (HEI) in Nigeria
Authors: Ogunbayo B F , Aigbavboa O C 
Published: November 2019

Abstract
Hostel accommodation is very crucial to the performance of students’ in any higher educational institution (HEI). It is against this background that this study appraised students’ maintenance requirements in the hall of residence on the facility provided for Higher Educational Institution (HEI) using Covenant University Ota, a leading private University in Nigeria, as a case study. Structured Questionnaires were distributed through systematic random sampling techniques to 198 respondents, to collect data on their maintenance requirements from the maintenance management unit. The result of the study indicates that most maintenance request by the student in HEI facility is majorly on floor and wall, reading tables and chairs, together with lockers and door locks. The study found out that acknowledgment of maintenance request by maintenance personnel was prompt but the actual repairs take time. The studies further showed that vandalism, lack of user’s specification and use of substandard material during replacement were some of the significant factors causing damage to facilities in HEIs. The study concluded that to meet maintenance requirements of students’ in HEI hostels, the facility provided should be maintainable, serviceable, and replaceable within the hall of residence and a maintenance operations manual should be provided for maintenance personnel to develop a maintenance standard in meeting the students’ immediate maintenance requirements.
Barriers to retrofitting buildings for energy efficiency in South Africa
Authors: Oguntona O A , Maseko B M , Aigbavboa C O , Thwala W D 
Published: November 2019

Abstract
Literature has established the enormity of energy consumed by buildings. The processes involved in generating and distributing this energy, and most especially its usage is identified as causing a significant adverse environmental impact. As a strategy for enhancing the effectiveness and efficiency of existing buildings through the introduction of new technologies, retrofitting has become another avenue for achieving sustainability in the construction industry. This paper, therefore, seeks to identify the major barriers to retrofitting buildings for energy efficiency in South Africa. A structured questionnaire survey was used as the instrument for data collection. Data for the study were gathered from construction professionals (architects, civil engineers, quantity surveyors, project managers, construction managers, and energy engineers) with experience in building retrofit projects. A quantitative approach to data analysis was adopted using percentage, standard deviation, and mean item score. From the data analysed, the results revealed low income, high investment costs, occupant’s resistance, high upfront cost, and low consumer appeal as the top five barriers. The findings from this study will help improve and encourage retrofitting buildings for energy efficiency which is believed to have the potential of drastically reducing the long-term cost of energy consumption, greenhouse gas emissions and carbon footprint.
Identifying the awareness level of the use of sustainable project management in the South African construction industry
Authors: Ohiomah I , Aigbavboa C , Mogasho B , Osunsanmi T , Thwala W D 
Published: November 2019

Abstract
The relationship between project management and sustainable development is rapidly gain-ing interest from both practitioners and academics. This is so because projects have long term impacts on social, economic and environmental sustainability to South Africa, because of this construction companies are increasingly under pressure to incorporate the objectives of sustainable development into company policies and decision-making processes. The aim of this study is to identify the level of awareness of sustainable project management by professionals in the South African construction industry. A quantitative methodology approach was adopted for this study, a questionnaire was employed to gather data for this study. A total of fifty-two (52) respondents returned their questionnaires. Descriptive statistical tools were used to analyse the findings, tools such as mean item score (MIS) was used to rank the level of awareness of sustainable project management and the reliability of the was also checked. Findings from this study revealed that the implementation of sustainable project management can lead to saving energy, reduction of greenhouse emission amongst many. This study concluded by stating that it will be imperative for policies to be put in place by the government to help encourage organisations to implement sustainable project management.
Overcoming the challenges encountered by construction industry SMEs in using insurance
Authors: Akinradewo O , Aigbavboa C , Ngwenya L 
Published: November 2019

Abstract
The construction industry is arguably one that exposes the most people to uncertainty and danger, while insurance is considered to be the backbone of risk mitigation for many other industries. Insurance itself is a very subjective and complex method of risk management which has its own flaws but can turn out to be very useful in appropriate circumstances. The aim of this research study is to evaluate the ways of overcoming the challenges encountered in using insurance schemes by small and medium enterprises in the construction industry. Quantitative research design was adopted for this research study and the questionnaire was well structured to retrieve the necessary information from respondents. Factors obtained from reviewed literatures were structured into the questionnaire for respondents to rank using a 5-point Likert scale. Government construction officials, Consultants, Contractors and insurance organisations were chosen as respondents for this study based on their familiarity with insurance administration in the construction industry. Analysis of data retrieved was done using mean item score and Kruskal-Wallis H-test. Findings showed that SMEs needs continuous training, paying attention to details of the insurance policies and thorough risk assessment in order to overcome the challenges encountered with the use of insurance schemes. The study concludes that SME’s are faced with the challenge of having leadership with little or no education concerning insurance policies thereby resulting in not knowing how best to minimize chances of risk fruition or how to get the best insurance policy covers.
Improving the efficacy of cost contingency plans for construction projects in South Africa
Authors: Akinradewo O , Ngwenya L , Aigbavboa C , Thwala W , Mphela L 
Published: November 2019

Abstract
The use of cost contingency in construction projects provides a lucid and lively recognition of upcoming/impending challenges of cost overrun in delivering the construction project thereby giving room for project delivery to cost. The aim of this study is to evaluate how the efficacy of cost contingency plans for construction projects can be improved. This study adopted the use of a quantitative research approach with the use of questionnaire structured to capture the perceived measures of improving the efficacy of cost contingency plans for construction projects. The study harnessed information from Construction Managers/Project Managers, Contract Managers and Quantity Surveyors in Gauteng Province, South Africa. Data retrieved was analysed using mean item score, standard deviation and Kruskal-Wallis H-test. This study was limited to Gauteng province in South Africa due to time and cost constraint. The findings showed that the three most effective measures of the efficacy of cost contingencies in construction projects are assessing risk possibilities, assessing risk impact, and identifying project risk and uncertainties. The study concluded that cost contingency plan can be improved when risks are adequately assessed together with their impact on the construction project. By recommendation, identification; definition; and evaluation of risks is a paramount activity which project professionals must embark upon before a construction project can commence.
Benefits of the Adoption of Facilities Management Practices in Tertiary Institutions: A Case Study of Covenant University
Authors: Fadahunsi J O , Utom J A , Ochim M R , Ayedun C A , Oloke O C 
Published: November 2019

Abstract
Management of facilities is an interdisciplinary feature of company that coordinates room, infrastructure, individuals and organization. The application of facilities in higher learning institutions is still to be totally researched on and that is the reason why this research was embarked upon to assess the application of facilities management practices in Covenant University. The study was conducted using questionnaire and interview. A total of sixty-two (62) questionnaires completed by academic staff of the College of Science and Technology were analyzed. The facility manager in the Physical Planning and Development Directorate of Covenant University was interviewed. Findings from the analysis showed the benefit of adopting facilities management principles in Covenant University as proactive maintenance, improved health and safety, good and neat environment, quality services and functional buildings. Likewise, the study identified facility management tools used in Covenant University as asset tracking and register, estate operational plan, costs benefit analysis, energy use auditing and control and performance analysis. The study went further to recommend additional facilities management tools that should be appropriately deployed in the University.
Assessment of Architects’ Knowledge of Passive Design Strategies in Terminal Buildings among Architectural Firms in Lagos State
Authors: Ibem E O , Udezi B E , Oti O M , Fakorede O A 
Published: November 2019

Abstract
Buildings are responsible for over 40% of the global energy consumption in recent times. This has led to the advancement of various strategies for ensuring that building can still perform optimally with a reduce energy consumption level. Designers of modern building structure need to develop a new approach towards harnessing the attributes of nature and its immediate environment in order to achieve a great level of indoor comfort to the users. The concept of passive design planning and strategies has been known to achieve such thermal performance in building a structure and reducing energy consumption to the barest minimum. The study aims at conducting an assessment on the knowledge level of Architects conducting business in Lagos State of passive design strategies in terminal buildings. The study was a questionnaire survey with a sample size of 128 randomly selected registered architectural firms located in Lagos. Descriptive statistics were conducted on the data and the result was presented using Table. The study revealed that Architects in Lagos state have good knowledge about passive design strategies in terminal buildings as all the mean scores were above 3.0. While, building orientation, daylighting, natural ventilation and proper landscaping were identified as the most important among the strategies employed for the passive design of terminal buildings in the achievement of users’ thermal comfort and towards the accomplishing reduced use of mechanical technologies.
Strength and deflection characteristics of concrete reinforced with steel swarf
Authors: Adetukasi A O 
Published: November 2019

Abstract
This paper reports the strength characteristics of concrete reinforced with steel swarf at varying percentages. A total of forty-five concrete specimens were investigated; with a mix proportion of 1:2:4 and water-cement ratio of 0.55, fifteen numbers each of 150mm concrete cubes, 150x300mm concrete cylinders and 150x150x750mm beams, were cast and tested for density, compressive, tensile and flexural strengths. The results showed that workability of Swarf Reinforced Concrete (SRC) is not significantly affected at 0.5% steel swarf content but decreased as the percentage of steel swarf increased. The density of SRC increased as the percentage of fibres increased, due to the material property of the steel swarf. The compressive strength of swarf concrete as compared to normal concrete was found to increase by 1.7%, 4.8% and 5.6% for 1%, 1.5% and 2% swarf content respectively. The obtained increase in the tensile strength was 5.2%, 3.9%, 13% and 26% for 0.5%, 1%, 1.5% and 2% swarf content respectively. Using regression analysis, Index models for compressive strength and tensile strength with respect to the swarf content was developed at high coefficient of correlations (R2 values) of 0.9398 and 0.9601 respectively. The maximum failure load recorded for swarf concrete was 2.5 times higher than that of plain concrete. The significant increase in the failure loads for the 1.5% and 2% steel swarf content is an indication that there was good bond between the concrete and the steel swarf. The maximum deflection of 0.57mm was recorded for swarf concrete beams. This is an increase of 103% compared to plain concrete beams. The SRC is able to sustain further deformation under increased load; this is as a result of increased load carrying capacity and ductility of the beam section, which is due to the strength and ductility properties of the embedded steel swarf.