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355 articles for “Survey”
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Nanofiltration a chemical separation technique
Abstract: Nanofiltration innovation has made considerable progress since its first commencement in the last part of the 1980s. The essential diaries detailing articles on nanofiltration are the Journal of Membrane Science, Desalination and Separation and Purification Technology. There has been a clear development in the space of natural dissolvable nanofiltration, drug, and organic applications, plan and financial aspects of nanofiltration cycles, and survey articles.Nanofiltration (NF) with benefits of high productivity and …
Published in International Journal of Chemical Separation Technology · Vol. 7, Issue 2, 2021 · pp. 34–38 Read article
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SOCIO-ECONOMIC IMPACT AND ENVIRONMENTAL HAZARDS OF OIL PALM MILL INDUSTRY ON THE RESIDENTS IN DARU AND YENGEMA, JAWI CHIEFDOM, KAILAHUN DISTRICT SIERRA LEONE
Abstract: The oil palm industry's socioeconomic impact and risk to human health evaluation were quantitative and descriptive cross-sectional studies to determine the oil palm industry's socioeconomic influence on local communities and risk to human health in the surrounding area. The two residents of the study site were chosen at random. The study included 51 respondents in total. Questionnaires and key informant interviews were used to generate the results. The outcomes of …
Published in International Journal of Environmental Chemistry · Vol. 9, Issue 1, 2023 · pp. 24–33 Read article
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Review on Chalcone (Preparation ,Reactions, Medical and Bio Applications)
Abstract: This survey provides information on( methods of synthesis , reactions , applications in the medical and biological activities , its uses and its source as (whether natural or synthetic) . Chalcones are chemical compounds or natural molecules have a broad spectrum of bio- activities, which are of great interest in many fields. The chemistry of chalcones appeared information about its preparation methods as a starting material in many reactions like …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 1, 2019 · pp. 16–27 Read article
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REVIEW ON PREPARATION METHODS & APPLICATION FIELDS OF OXADIAZOLE
Abstract: This review displays oxadiazole (five-ring) that is of great importance in the fields of pharmacy, medicine, and field of coordinated chemistry and as reagents to estimate the small quantities of trace elements and minerals. Oxadiazole is a primary role and as a basic substance for many pharmacokinetic compounds such as antimalarial drugs, anti- bacterial, and cancerous tumors. This survey described several approach for preparation methods of oxadizole with their applications …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 49–60 Read article
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Strategies for Electronic Wastes Management for Sustainable and Green Environment in Nigeria
Abstract: Adequate strategies need to be put in place for electrical and electronic waste management, renewable energy commercialization, green societies and sustainable development in Nigeria. This paper examined handling, disposal and management of electronic waste in Nigerian environment. Methodology adopted includes literature reviews of issues on this subject matter, specific site inspection, surveys and secondary data from users and industries with massive electronic waste. It has been discovered that these wastes …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 7, Issue 2, 2021 · pp. 38–46 Read article
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Review on Preparation and Applications of Formazan Compounds
Abstract: The objective of the survey designated in this study is to predict the redox-active feature of formazan derivatives. To realize this purpose, preparation processes and investigation approaches of the formazan derivatives are developed. The redox properties of formazan derivatives were identified via electrochemical approaches and the first samples of isolated and well-investigated formazan products are designated in this review. Formazan derivatives (as a dyes) are synthetic chromogenic yields of the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 23–33 Read article
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EFFECT OF SUPERVISION ON PRODUCTIVITY OF CONSTRUCTION INDUSTRY IN NIGERIA
Abstract: Poor supervision in the workplace has been identified to be among the primary obstacles to achieving potential successes by an organization. Insufficient direction is thought not only to be the major causes of revise but also resulted in low productivity, poor safety, lesser working conditions, and little quality of construction industry end product. Also lack of effective supervision is seen as an inevitable feature of the construction process which has …
Published in International Journal of Construction Engineering and Planning · Vol. 4, Issue 2, 2018 · pp. 22–29 Read article
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Bidding Strategy for Building Projects Based on Game Theory
Abstract: The owners of construction projects typically apply a competitive bid process to award a contract to the qualified bidder who submits the lowest price. For the contractors, it is very difficult to decide an optimal mark-up and bid value to win the contract and at the same time to secure sustaining profitability as high as possible. For that, from the various literatures related to the bidding problems, the factors are …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 1–11 Read article
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Identification of KPIs in Construction Industry: A Review
Abstract: The success of any construction project depends on project performance. Construction industry contains large number of parties, i.e. clients, stakeholders, shareholders, consultants, contractors, regulators and others. The factors that affect the performance of construction projects result in disputes, claims, failures and delays in construction. Through performance measurement, organizations can improve their productivity and also compare it with their competitors, as well as identifying their weakness. The main aim of this …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 28–38 Read article
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Analysis of Political Risks Affecting International Construction projects in Malaysia
Abstract: With the stable development of economy and a series of policies encouraging foreign investment and infrastructure construction, Malaysia becomes more attractive for international construction contractors. However, there is a lack of analysis of relevant political risks in Malaysia in previous literature. This paper aims to analyze the political risks affecting international construction projects in Malaysia. An assessment system with 11 political risk factors were established to calculate the scores of …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 2, 2019 · pp. 10–27 Read article
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NIGERIAN PUBLIC PROCUREMENT ACTS AND PROFESSIONALISM: AN ENGINEERING PERSPECTIVE FOR OPTIMAL PERFORMANCE
Abstract: Professional in the field of engineering must embraced the utilization of public procurement act in Nigeria for optimal performance. This paper assessed the performance of Public Procurement Reforms in Nigeria based on engineering perspective. This act followed a World Bank Country Procurement Assessment survey conducted in 1999 established the link between poor public procurement procedures and corruption. The Assessment Report revealed that 60% was being lost to corrupt practices out …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 2, 2019 · pp. 28–35 Read article
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Risk Management in Construction Projects: Consultants’ Perspective
Abstract: Construction projects are among the most vulnerable projects to uncertainty and risks which affect project schedule and increase costs. The issue of risk in construction is a global one, and the Palestinian construction sector is no different. This study aims to identify risk factors in construction projects from consultants’ perspective in Palestine and to prepare risk map for them, then to suggest response for critical ones. A survey using a …
Published in International Journal of Construction Engineering and Planning · Vol. 8, Issue 2, 2022 · pp. 38–50 Read article
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Risk Map For Delay Causes in Construction Projects in Palestine: Contractors' Perspective
Abstract: This study is conducted to identify the main risks in construction projects in Palestine from contractors’ perspective. Questionnaire survey is the tool used to achieve the objectives of the study. 41 critical risk factors in projects associated with project duration were identified and classified as external and internal factors. The risk map for the investigated causes created based on their perceived severity and frequency of occurrence. The findings reveaeled 29 …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 1, 2023 · pp. 46–56 Read article
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Projects in Accelerated Conditions
Abstract: The work aims in identifying the causes of delay in construction projects and the acceleration techniques adopted to overcome them. Questionnaire survey with experts from industry was used for generation of data and analyzed using Relative Importance Index and Spearmen’s Rank Correlation Coefficient test. On analyses it was noticed that project complexity, labour challenges and resequencing of activities are the main barriers impacting the timeline for construction projects. Various acceleration …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 46–56 Read article
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Effect of Temperature on mechanical properties of Geopolymer concrete: A Review
Abstract: Concrete is the most widely used material after water in building and construction field. It is the oldest man-made material and is easily available for use at cheaper costs. This material is causing harm to environment on mass extent. OPC i.e. Ordinary Portland Cement is second contributor after automobile industry in Carbon Dioxide emission. This review presents the study of replacement of regular concrete cement with cementitious material like fly …
Published in International Journal of Concrete Technology · Vol. 7, Issue 1, 2021 · pp. 24–28 Read article
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Under Water Blasting for Rock Dredging & Protection of Structures: A Case Study
Abstract: Rock dredging in ports involves under water blasting for the pretreatment of hard sea bed. A rock dredging project covering an area of about 257,058m2 involving 400,000 cu.m of hard Khondalite rock mass was taken up in a port in the east coast of Southern India, for deepening of Turning Circle and Inner Harbour Channel. Pre-blast survey was carried out to assess type and condition of various structures standing on …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 2, Issue 1, 2016 · pp. 31–38 Read article
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Farming on Phone: Understanding Cotton Farmers’ Intentions and Feasibility to Adopt ICT-based Agro Advisory Services in Maharashtra, India
Abstract: The use of ICT tools in the agriculture sector for rural farmers has emerged as a potential for empowering farmers and improving their livelihoods as the phone-based agro-advisory services provide farmers with access to tailored relevant information to help them make better decisions about agricultural activities, crop yields, and better management of natural resources. However, understanding the impact of social structure on ICT adoption and perceived impacts is important to …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 8, Issue 2, 2022 · pp. 14–25 Read article
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Assessment of Project Cost Control Strategies in the Nigerian Construction Industry – A Case Study of South West Nigeria
Abstract: The construction industry is a major consumer of capital resources by virtue of the magnitude, complexity and nature of works it executes. Yet improving cost performance still remains a chronic challenge facing the construction industry worldwide. Apart from advance made by contractors to devise mechanism to manage project cost, studies across the world reveal that construction projects are hardly completed within budget. However this background is considered unhealthy for an …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 1, 2016 · pp. 32–42 Read article
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Assessment of the Factors Influencing Facility Maintenance Problems in Rufus Giwa Polytechnic, Owo, Nigeria
Abstract: This survey is carried to assess the facility maintenance challenges in higher institutions of learning by adopting Rufus Giwa Polytechnic, Owo. The study particularly examined those factors that contribute to maintenance problems and those that influence maintenance programme on the institutional buildings in the study area. Structured questionnaires were distributed to respondents and the results were analyzed. Findings revealed that untimely replacement of defective fitting is the main maintenance challenge …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 2, 2016 · pp. 20–28 Read article
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Role of Technology and Innovation in Economic Development – A Review of Major Global Trends
Abstract: The present study has made an attempt to identify major global trends and parameters, which have led to tremendous economic and business growth in the US and a few more progressive EU28 (European Union) countries, besides Japan, China, and other emerging economies. The macrolevel approach has been adopted in collection and analysis of secondary data and information, by referring to the specialized reports of many reputed international and national organizations. …
Published in International Journal of Structural Engineering and Analysis · Vol. 3, Issue 1, 2017 · pp. 77–100 Read article