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577 articles for “port”
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Management of Ship-Generated Pollution in Nigerian Seaports
Abstract: The impact of ship-borne pollution in Nigeria’s seaport is alarming. Following the guidelines of the International Convention for the Prevention of Pollution from Ships (MARPOL). This study identifies the types of ship-generated waste; evaluates the availability of waste reception facilities in Nigerian seaports, examining the costs of operation waste reception facilities in the Nigerian Seaports; examines the management of ship waste collection processes in the Nigerian Seaports; investigates the implementation …
Published in International Journal of Pollution: Prevention & Control · Vol. 3, Issue 2, 2025 · pp. 23–42 Read article
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Luminodeficit: The Paradox of High Rent and Abandoned Interiors
Abstract: The paradox of high rent and poor daylighting in residential buildings is a pressing issue in urban areas like Port Harcourt, Rivers State, Nigeria. Despite paying premium rents, many residents experience inadequate daylighting, leading to unexpected behavioral outcomes. This study aims to explore the effects of daylight deprivation on residents of high-rent residential buildings in Port Harcourt. It investigates how poor daylighting influences indoor time spent and overall occupant satisfaction, …
Published in International Journal of Environmental Planning and Development Architecture · Vol. 3, Issue 2, 2025 · pp. 1–7 Read article
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IR Laser Virtual Keyword: A Review Paper
Abstract: Technology is evolving at an unprecedented pace, becoming faster, more compact, lightweight, and efficient. Continuous advancements in electronics, communication systems, and embedded technologies have led to the development of innovative devices that enhance convenience and improve user interaction with digital systems. One such innovation is the laser projection keyboard, a virtual input device that eliminates the need for a traditional physical keyboard. By projecting a full-sized keyboard onto any flat …
Published in Journal of Electronic Design Technology · Vol. 17, Issue 2, 2026 · pp. 43–48 Read article
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Innovation of 5G Technology: Evolution and Revolution
Abstract: In this study, an endeavor has been made to audit different existing ages of versatile remote innovation regarding their entries, execution, points of interest and hindrances. The study illuminates the advancement and improvement of different ages of versatile remote innovation alongside their hugeness and favorable circumstances of one over the other. In the previous couple of decades, versatile remote innovations have experience 4 or 5 ages of innovation upheaval and …
Published in Journal of Control & Instrumentation · Vol. 10, Issue 3, 2019 · pp. 1–8 Read article
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Harmonic Mitigation in Shunt Active Power Filter Regulation Approaches with Synchronous Reference Frame: An Extensive Analysis
Abstract: The Shunt Active Power Filter (SAPF) is discussed in this work as a means of removing line-side current harmonics. The Voltage Source Inverter (VSI) topology serves as the foundation for the Active Power Filter. It resolves the power system's harmonic current issue. Additionally, it balances the load on three phases and compensates for reactive power (if load is unbalanced). After measuring load current, it switches to the dq0 coordinate system. …
Published in Journal of Microcontroller Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 6–15 Read article
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Internal and External Factors Impacting Construction Labour Productivity for Glazing of Doors and Windows
Abstract: The efficiency of glazing installation during building construction is impacted by internal and external factors, which affect labour productivity. External factors are exogenous to the construction sites but have an overarching influence on the productivity of site operations, while internal factors emanate from the construction firms and their site operations. This study examines the internal and external factors impacting construction labour productivity for the glazing of doors and windows, using …
Published in Journal of Production Research & Management · Vol. 13, Issue 2, 2023 · pp. 1–8 Read article
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Perceptions of Material Management/Production Practices as Measures of Financial Planning and CostControl on Construction Sites
Abstract: Financial planning and cost control on construction projects are necessary to avert cost overruns, ensuring that the final cost does not exceed the projected capital outlay. Material management and production practices constitute financial planning and cost control measures that are mandatory to increase the profit margin of construction firms. This is against the backdrop of the likely resource commitment made by construction firms in obtaining project finance to purchase materials. …
Published in Journal of Production Research & Management · Vol. 13, Issue 2, 2023 · pp. 64–71 Read article
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Economics of Construction Site Productivity: Work Environment Factors Affecting the Output of Craftmen in Nigeria
Abstract: The construction industry faces challenges and problems associated with craftsmen's output, which impacts the economic productivity of the construction sector. Construction workers in Nigeria have always been subjected to working within an unconducive environment, which has not allowed for a high level of economic productivity. This study extensively analyses some of these work environment factors affecting craftsmen's output on building sites in Port Harcourt, Nigeria. A survey of selected construction …
Published in Journal of Production Research & Management · Vol. 13, Issue 3, 2023 · pp. 12–23 Read article
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Effect of Fiber Addition in Geopolymer Concrete: A Study on Comparison betweenNatural and Artificial Fibers
Abstract: Geopolymer concrete is an inorganic polymer concrete, containing no ordinary Portland cement (OPC). It is produced by reacting alumino-silicate source material with alkaline solution. Geopolymer concrete has highly desirable structural engineering properties, which can lead to significant environmental and economic benefits. Fibers in general and polypropylene (PP) fibers in particular have gained popularity in recent years for use in concrete, mainly owing to their low price and excellent characteristics. Alkalineliquids …
Published in Journal of Structural Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 18–24 Read article
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Practical Implementation of Network Switch on FPGA
Abstract: AbstractA network switch is a hardware device, which is used for device communication within a network. It uses a packet-switching mechanism to receive and transmit data to the target device. Network switches contain multiple ports that use media access control (MAC) address for transmitting data at the data link layer (layer 2) of the Open Systems Interconnection (OSI) model. This research aims to design a network switch on FPGA to …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 1, 2020 · pp. 14–19 Read article
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Thornthwaite’s Potential Evapotranspiration Rate Assessment and Implication on Rainfall Induced Floods in a Coastal Expanse of Nigeria
Abstract: This study examined the potential evapotranspiration (PET) rate effects on rainfall-induced floods within Port Harcourt, a coastal city in Nigeria. Mean monthly rainfall and air temperature data for 39 years (1979–2018) was sourced from the Nigerian Meteorological Agency and used to evaluate the potential evapotranspiration (PET) of the area using the Thornthwaite’s method. Results revealed that the mean rainfall and PET values for Port Harcourt during the periods under review …
Published in Journal of Water Resource Engineering and Management · Vol. 10, Issue 1, 2023 · pp. 15–24 Read article
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Effects of Polypropylene Fibre on Strength of Geopolymer Concrete
Abstract: In the construction industry, the most vital parameter considered in the current scenario is the sustainable development of the structures. The most used material in construction is concrete, which is primarily made up of Portland cement. The production of Portland cement is nearly about 2.6 billion tonnes per year and is increasing at the rate of 5% annually. The concrete industry contributes about 5–8% of all human generated carbon dioxide …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 23–31 Read article
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LoRa based Healthcare and Agriculture Monitoring System with IoT Platform
Abstract: Because of the absence of portable foundation in local regions, a ton of current innovations can't be utilized effectively. With Long Range (LoRa) and Long Range Wide Area Network (LoRaWAN), there are new ideas for remote long-range correspondence which have been set up. They empower an advanced specialized answer for convey in rural regions, where current portable organization inclusion is absent. This paper examines LoRaWAN for Agriculture and Healthcare based …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 2, 2021 · pp. 7–12 Read article
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Design and Analysis of Dual Band Equal Split N-way Wilkinson Power Divider
Abstract: Abstract A Design and analysis of dual band equal split N-way Wilkinson power divider is proposed in this specific work. For this the design of 2-way 4-way, 5-way and 6-way power divider is made with the help of an N-way power divider. An isolation resistor is used to achieve good isolation at output port of Wilkinson power divider. Parameters of the proposed configuration are calculated at the centre frequency of …
Published in Current Trends in Information Technology · Vol. 3, Issue 1, 2013 · pp. 17–20 Read article
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A Review on Comprehensive Therapy of Ascites Cancer
Abstract: Ascites cancer is a condition in which there is a fluid accumulation in the peritoneal cavity due to diseases like liver disease, heart failure, renal disease and malignancy. Approximately 50% of all cirrhotic patients develop ascites cancer every year. The average survival after development of malignant ascites is only about 5 months. The most common symptoms of Ascites are recent weight gain, increased abdominal girth and dyspnoea. The development of …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 1, 2018 · pp. 1–6 Read article
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Unani Concept of Diabetes Mellitus: A Review
Abstract: Diabetes is one of the top executioner illnesses of humanity. In spite of the fact that it influences all the group of society, its effect is mostly on prosperous society. The present depiction of diabetes has nearly balanced out, which primarily rotates around the job of pancreas, insulin, and its fringe obstruction alongside different causes, to a lesser degree; nonetheless, this portrayal needs reexamination. The quickening weight of the malady …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 7, Issue 1, 2020 Read article
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Solving Non-Linear Equations for Thevenin and Norton Circuits using Analog Behavioural Modelling with PSPICE Software
Abstract: A new approach useful for circuit designers for implementing circuit parameters described by non-linear equations and Thevenin and Norton network equivalent parameters represented by equations is given. The content is divided into two parts, (a)Solving Non-linear equations using analog behavioral modelling using Pspice software (b) Thevenin and Norton equivalent circuit parameter determination for pure resistance DC circuits using SPICE simulator. The non-linear equations are solved using network elements/models described by …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 28–36 Read article
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Proposal of System for High Efficiency Energy Extraction from LNG and Study of Use of EGR and SCR System in Ships
Abstract: The paper focuses on the green shipping methodologies and environment friendly practices. Liquefied natural gas (LNG) is one of the most effective alternatives to traditional shipping fuels. Ports have LNG re-gasification systems, which generally use Open Rack Vaporizers (ORVs) to convert the LNG to NG. In this process, a lot of the ‘cold energy’ is lost. A proposal for a LNG re-gasification system has been made in this paper which …
Published in Journal of Offshore Structure and Technology Read article
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Assessing the Influence of Aggregates and Cement Type on the Properties of Roller-compacted Concrete
Abstract: Roller-compacted concrete (RCC) pavement is suitable for heavy traffic and harsh environment. In the present investigation, RCC slab samples have been prepared using two types of aggregates (crushed and rounded), and two types of cement binder (ordinary Portland and sulphate resistant). Cubes and beam specimens have been extracted from the slab samples with the aid of diamond saw. Specimens were tested for bulk density, ultrasound pulse velocity, compressive and flexural …
Published in Trends in Transport Engineering and Applications Read article
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DESIGN AND ANALYSIS OF A METAL LINED COMPOSITE OVERWRAPPED PRESSURE VESSEL
Abstract: This study presents a comprehensive investigation into the mechanical behavior of a metal lined composite overwrapped pressure vessel, designed for high-pressure storage applications. The design approach is dependent upon fiber material constants and dome shape factor. The study begins with obtaining dome coordinates and maintaining winding angles according to a geodesic path equation. Thickness estimation for the portion of cylindrical shell and domes are determined through netting analysis and cubic …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 215–232 Read article