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89 articles for “p-delta”
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Seismic Performance of Flat Slab Buildings Considering P-Delta Effect
Abstract: Flat slab structures are becoming quite popular due to functional and architectural advantages. The flat slab structures are flexible when compared to framed structures as the slab is directly columns. Typically the seismic forces in such a structure are resisted by shear wall systems. Under design seismic conditions the lateral displacements are large and the columns deform along with the lateral load resisting system. Under such conditions the columns are …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 10–16 Read article
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Study on Delta plus Disease: A Review
Abstract: The review paper conducted on “study on Delta plus disease” gives the detail information about genome that was used for the identification of Delta and variants that have generally been observed. It also gives the information about the origin of the Delta plus, it signs, and symptoms observed, causes of the different variant, it’s treatment and generally the therapies that are brought in use for the proper cure of the …
Published in Research and Reviews: A Journal of Medicine · Vol. 12, Issue 1, 2022 · pp. 23–31 Read article
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SIESMIC ANALYSIS OF MULTISTOREY BUILDING WITH FLOATING COLUMN UNDER EARTHQUAKE EXCITATION WITH AND WITHOUT CONSTRUCTION SEQUENCE ANALYSIS CONSIDERING P-DELTA EFFECT
Abstract: Rapid urbanization and population increase has led to the design of high rise buildings with varied amenities in the recent construction practices. These buildings now no more has the old same configuration on each floor, but but a range of different combinations on floors. This has made the use of floating columns an unavoidable structural element. As the storey height rises the scale to which the bending moments are transferred …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 55–78 Read article
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Torsional Effect on Multi-Storeyed Building on Regular and Irregular shape of Building with and without Infill by Using P-Delta Analysis
Abstract: Torsional effect on structure is the modified seismic response of building which caused several damages or collapse of structure. P-Delta effect are the second order effects which increase lateral displacement in which the lateral displacement can be caused by wind or seismically induced inertial forces in the high rise structure. The increase in number of storey in the structure directly proportion to the delta effect in the structure. The present …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 48–55 Read article
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SARS-CoV-2 B.1.617.2 (Delta), B.1.617.2.1 (Delta Plus) Variant and Vaccine Strategies
Abstract: In India and other countries throughout the world, the Delta (B.1.617.2) variety has major devastation. First spotted in October 2020, it has already spread to more than 100 nations, prompting WHO to declare it as a worldwide variant of concern (VOC). Sub-lineages of the original B.1.617 variant include Delta (B.1.617.2), Delta plus (B.1.617.2.1), and Kappa (B.1.617.1). Vaccine deployment, safe-distancing, and timely lockdowns significantly reduced COVID-19 hospitalizations and deaths before the …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 10, Issue 3, 2021 · pp. 63–75 Read article
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Study of Structures Considering Second Degree Analysis P-delta and Construction Sequence Analysis
Abstract: Infrastructure plays an important, rathernecessary role in modern society.Real estate amenities surrounding to us give everyone access to multiple aspects of technology which help to carve the frame of mind.Amenities, which once were rare and difficult to avail for everyone, is now available to common civilians.Recently, RCC structures has changed a lot,the symmetrical and identical storeys of premises is now considered as a conventional and to an extent inefficient design.The …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 1, 2021 · pp. 38–42 Read article
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Towards a Geo-Classification of the Niger Delta for Highway Investment Costing Applications
Abstract: The study carries out a quasi-experimentation, as a basis of devising a spatial quantitative concept, delineating distinct geologic settings which would have differing cost implications for highway infrastructure development in the Niger Delta region of Nigeria. Three broad conceptual geomorphic boundaries, for the categorisation of Niger Delta soils in engineering geologic costing application, were discerned within this conceptual lens. The study further statistically explores the synthesised geo-zonation for differences in …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 24–40 Read article
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Project Abandonment and Delay in Niger Delta’s Highway Projects
Abstract: The pervasiveness of project delays and abandonment in the developing world is evident in the literature. The study outlines the prevalence of extreme project delays and abandonment in the Niger Delta region, an archetypical low-lying wetland in Nigeria, given the peculiar wet land geology of the Niger Delta. A survey of the empirical literature evidence suggests more profound technical shortcomings and procurement issues, beyond the generality of factors endemic in …
Published in Trends in Transport Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 19–32 Read article
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Fabrication of Delta-Frame 3D Printer to Reduce Print Time
Abstract: 3D printing refers to a process of printing 3-dimensional objects, also known as “rapid prototyping”. The reason behind the wide use of a 3D printer is that it enables the creators to deliver a model of what they want in a short period of time, which is tested and quickly remodelled if needed. This significantly decreases the expected time to get from the model stage to the final product. At …
Published in Journal of Control & Instrumentation · Vol. 9, Issue 2, 2018 · pp. 12–16 Read article
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MODELLING HETEROGENEOUS POROSITY IN ALLUVIA PLAIN DEPOSITION IN DELTAIC FORMATION
Abstract: Abstract Porosity of soil are basically determine for various purpose, but this papers monitor degree of porosity in alluvia plain deposition under heterogeneous lithostratification, the study examine the predominant deposition of heterogeneous porosity in alluvia plain, such condition were observed in deltaic environment, such heterogeneous degree of porosity will definitely affect other engineering soil properties, this paper try to effectively investigate and determination of total evaluation for such heterogeneous porosity …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 1–10 Read article
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Design and Performance Trends of Low Power Sigma-Delta A/D Converters
Abstract: Analog-to-Digital Converters (ADCs) act as the bridge linking the real world and the digital world, i.e., they can covert the analog signal to the digital signal, and hence benefit to the storage, processing and transmission of the data. This paper presents a first of its kind study on the various Sigma-Delta (ΣΔ) ADC architectures proposed to achieve low power consumption and their performances have been compared with respect to the …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 5–12 Read article
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Three-phase squirrel cage induction motor employing PLC-based Star-Delta starter
Abstract: This presentation discusses the significance of regulating beginning current and torque while finally beginning a motor. A multiple doubly fed induction motor may be started using a variety of methods. In addition, a star-delta technique utilising a reconfigurable controller (PLC) is described and evaluated to begin the Actuator Throughout the beginning process of a squirrel cage induction motor, the predominant and start contactors remain suspended and establish the circuit. This …
Published in Trends in Electrical Engineering · Vol. 12, Issue 1, 2022 · pp. 52–61 Read article
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Responses of Phytoplankton Community Structure to Polycyclic Aromatic Hydrocarbon Constituents in Imo River, Oyigbo, Niger Delta, Nigeria
Abstract: Phytoplankton perform a pivotal role in the food chain and serve as indicator species in environmental studies. Polycyclic aromatic hydrocarbons (PAHs) are toxic group of divergent chemicals with two or more aromatic rings coalesce side by side representing serious persistent organic contaminants posing environmental risk to aquatic life and human. Imo River receive contaminants from illegal oil refinery. The study was conducted to assess the responses of phytoplankton community structure …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 1, 2025 · pp. 45–53 Read article
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Perceptions of Modular Construction as a tool for incorporating Resilience in Post Disaster Housing Reconstruction in the Niger Delta Environment
Abstract: The Niger Delta region of Nigeria is coastal in nature and its urban form is governed by natural environmental constraints that have a strong bearing on the available land for physical development and the cost of provision of housing. The study espouses the adoption of a modular off-site prefabricated system of construction to close the enormous gap between demand and supply for housing in this ecologically fragile environment. This prescriptive …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 3, 2022 · pp. 1–7 Read article
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Evaluating Lift Systems For Oil Wells Using Integrated Production Modeling: A Case Study Of A Niger Delta Field
Abstract: An integrated production model for evaluating artificial lift systems is presented in this study to ascertain the need to install an artificial lift system or continue with natural flowing mode. An integrated model comprising of reservoir, wellbore and surface facility models representing basic stages of production. The integrated model took into consideration, factors that affect the liquid production at these stages and provide total liquid production at the surface, which …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 32–48 Read article
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Idealising Step Change Towards Achieving Value for Money in Niger Delta’s Highway Infrastructure Delivery
Abstract: This paper idealises step changes proffered, given the repeated calls, to ensure value for money in highway infrastructure investment. The study reiterates the need for highway agencies to adequately evaluate the geomorphology of the Niger Delta, as a prerequisite to the cost-effective delivery of highway infrastructure in the region. Such prescriptive measures necessary to entrench geotechnical principles for the efficient development in road infrastructure have been identified from best practices …
Published in Trends in Transport Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 1–9 Read article
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Determination of Possible Point of Wax Depositionalong Flowlines in the Niger Delta
Abstract: The focus of this study is to determine the possible point of wax deposition along an oil flowline in Niger delta. This research commenced with field studies to ascertain the flowline profile. The temperature profile along the flowline was determined using infra-red thermometer. Crude oil sample was taken from wellhead and laboratory analysis was carried out on the crude sample to determine the wax appearance temperature (WAT) of crude and …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 1–8 Read article
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Examination of Recycled Used Lube Oil Using Niger Delta Locally Source Material
Abstract: Present research work was conducted to demonstrate in detail the acid-clay recycling processes of used lube oil techniques and treatment. Adequate attention is given to these techniques employed in the recycling of used lube oil. A major menace today is the uncontrolled dumping and improper disposal of used lube oils, the magnitude which is conservatively estimated to be very high and therefore threatens our environmental existence. A comparative study was …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 9–14 Read article
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Review of Radial Drilling Technology and Viable Prospect in Mature Field Development in the Niger Delta
Abstract: A review of some Niger Delta oil field reservoirs indicates that most of the reservoirs are at the mature stages, thereby vulnerable to challenges such as; coning due to reduced size of the oil column, low oil production and lack of access to the residual oil trapped between existing wells of the mature field. Due to coning occurrences in the Niger-Delta oil field, most wells have been shut-in and a …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 60–66 Read article
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Active Power Control during Contingency using UPFC
Abstract: The ability of FACTs devices to control phase angle, bus voltages and line impedance in transmission line is what make it capable of controlling power flow. In this paper, we have studied one of most effective FACTS device known as UPFC. Analysis under the contingency is done using 10 bus system and contingency condition is being introduced in three-phase, delta-delta connected transformer i.e. one base is damaged or accidently opened. …
Published in Journal of Power Electronics and Power Systems Read article