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89 articles for “p-delta”
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Review and Analyze Low Cross Polarized Feed for Offset Parabolic Reflector Antenna for S-Band Application
Abstract: This study discusses the design of low cross polarized feed for offset parabolic reflector antenna and its application. Conical corrugated horn antenna consists of an input mode TE11 and the corrugation part requires a transition to HE11 mode for propagation. The paper presents the widely used design of TE11-HE11 mode converter i.e. Variable slot mode converter. Three different design of corrugated horn antenna is presented for optimizing the value of …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 30–36 Read article
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Passive Digital Phenotyping for Longitudinal Burnout and Occupational Mental Health Surveillance: A Transformer-Based Explainable Deep Learning Approach Using Smartphone Behavioral Streams
Abstract: Occupational burnout constitutes a pervasive yet chronically under-surveilled public health threat, its insidious temporal evolution rendering episodic self-report instruments structurally inadequate for early detection. This paper introduces BurnoutSense, a passive digital phenotyping framework that continuously harvests eight heterogeneous smartphone behavioral data streams encompassing application usage ecology, communication metadata, geospatial mobility, screen interaction dynamics, inferred sleep rhythmicity, keystroke kinematics, ambient noise exposure, and battery/charging cadence to construct individualized multivariate behavioral signatures …
Published in International Journal of Behavioral Sciences · Vol. 3, Issue 2, 2026 · pp. 44–53 Read article
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Performance Investigation on Fault Analysis in Power Transformer using Modified Fuzzy Controller
Abstract: This article presents the fault analysis and differential protection scheme of the three phase Power Transformers (PT). The proposed and designed relay operates mainly during the internal fault condition and it must be insensitive to any fault outside the zone of protection. In this paper, a designed and modified fuzzy logic controller based differential protection schemes have been used to product the system. The external and internal fault condition is …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 2, 2022 · pp. 32–43 Read article
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Analysis of Low Power Data Server in Distributed Environments
Abstract: The delta air temperature of a server farm is straightforwardly connected with the proficiency of the cooling framework. In the event that the temperature can be raised without critical adverse consequences on the power utilization and lifetime dependability of the IT supplies, the server farm cooling can be more proficient and the expense of activity can be decreased. In this work, we dissect the power upward and dependability loss of …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 1, 2022 · pp. 36–43 Read article
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Performance of Water Injection in Oil Rim Reservoir Recovery Factor
Abstract: This study examines the potential improvements in recovery factors in optimizing oil production from oil rim reservoirs through water injection and without water injection (i.e. primary production) scenarios in the development strategies of the oil rim reservoirs. A generic simulation model developed from ECLIPSE dynamic simulator was used as core representative of oil rim reservoirs to experiment production optimization with and without water injection. Reservoir data of permeability, oil rim …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 31–38 Read article
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Balance Truncation Method for Order Reduction of Interval System
Abstract: Abstract: Examination of higher order interval system is an attractive area for research. It demands a suitable approach to decrease them to its lower approximation. This paper goes to accomplish the necessity by introducing Balance Truncation technique for reducing the original system. The algorithm may be used for reducing the order of the unstable system and we are fruitfully attaining stable reduced order models. The reduction method is to study …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 1, 2019 · pp. 1–7 Read article
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Cannabidiol (CBD): An Innovative Pharmacological Treatment for Obsessive Compulsive Disorder (OCD)
Abstract: Obsessive Compulsive Disorder (OCD) is characterized by recurring and repetitious thoughts coupled to anxiety characterized by obsessive thoughts and associated compulsive behavior(s). OCD patient often fears that the anxiety will not abate and obsessional thoughts will control her/his mind or body in advocating or carrying out unwanted compulsive behaviors. Such thinking patterns or behaviors may often be frightening but usually they are quite harmless except when promoting accompanying anxiogenic activity. …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 7, Issue 1, 2017 · pp. 12–16 Read article
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Modeling the Variation in Specific Heat of Phase Change Materials during Phase Transition
Abstract: Specific heat of phase change materials varies significantly during phase transition. Accurate knowledge of variation in specific heat is vital for proper numerical simulation of heat transfer in such materials. Specific heat of phase change material (PCM) during phase transition has been modeled as delta, triangular and Gaussian function by researchers. In the present work, variation of specific heat is presented in the form of Fourier series. Fourier coefficients are …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 28–33 Read article
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T-π Network Simulation and Thevenin- Norton Equivalent Circuit Values From Laplace Description Using Pspice Software
Abstract: From the conversion methods of T-π (star-delta) for impedances circuits, the behavioral modeling of Pspice simulation program is used to obtain equivalent circuits using LAPLACE option. The conversions are verified for two types of circuits by obtaining AC values of voltages and currents at various nodes and branches using Pspice computer simulations. There are many ways of expressing Thevenin/Norton equivalent circuit parameters such as (a) as real numbers for pure …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 2, 2022 · pp. 43–58 Read article
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Texture Study on 316L Weldments after Heat Treatments
Abstract: AbstractAustenitic stainless steels are regularly used as components in many parts and vessels work in the ocean. Also, 316L stainless steel (SS) is used in nuclear reactors, located near sea. 316L SS base metal (BM) and weld metal (WM) are aged at 450°C and at 350°C for 6000 hours and texture analysis using electron backscatter diffraction (EBSD) revealed that the texture is independent of delta-ferrite content. Inverse Pole Figures (IPF) …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
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PREDICTING THE BEHAVIOUR OF BORRELIA IN HOMOGENEOUS FINE SAND IN COASTAL AREA OF BAKANA
Abstract: AbstractThe deposition of borrelia in fine sand formation in the coastal area of Bakana was monitored applying modeling and validation, the study try to predict the migration process of borrelia in the coastal formation, such deltaic depositions were observed to be alluvia predominant thus maintained homogenous fine sand formations. The study monitor the transport of borrelia in coastal area to observed whether the homogeneity will affect the behaviour of borrelia …
Published in Recent Trends in Civil Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 11–19 Read article
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Mathematical Model to Monitor the Transport of Bordetella Influenced by Heterogeneous Porosity in Homogeneous Gravel Depositions
Abstract: The study monitors the transport process of Bordetella in grave depositions. The study expresses the rates of depositions under fluctuation of micronutrients in the litho structures where predominant grave formation was observed. Such conditions explain the simulation values as they predominantly fluctuate with heterogeneous concentrations in deltaic formation. The study has explained the heterogeneity of deposited porosity and observed that it could not pressurize the behaviour of Bordetella transport in …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 1, 2019 · pp. 18–25 Read article
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Hyphomicrobium Transport in Heterogeneous Coarse Formation Influenced by Porosity
Abstract: Hyphomicrobium transports were monitored at different litho structure in deltaic depositions. The study is to determine their rates of migration in heterogeneous predominant porous medium in the study area. The deposition of Hyphomicrobium migration experienced lag phase in some region of the formation. Fluctuation was also observed base on the reflection of heterogeneous porosity. The migration in shallow depth may also be affected by high acidic [PH] in the soil …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 3, 2018 · pp. 25–33 Read article
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Bioremediation of Crude Oil-Contaminated Loamy Soil Using Plantain (Musa Paradisiaca) Stem Waste as a Biostimulant
Abstract: Crude oil contamination of soil is a pressing environmental challenge in oil-producing regions, especially in the Niger Delta of Nigeria. It degrades soil fertility, disrupts microbial ecosystems, and poses long-term ecological and health risks. Traditional remediation methods are often cost- prohibitive and environmentally intrusive, prompting the search for sustainable alternatives. This study investigates the potential of plantain (Musa paradisiaca) stem waste – a readily available agricultural byproduct – as a …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 1, 2026 · pp. 1–11 Read article
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Pipeline Integrity Optimal Maintenance Techniques and Its Reliability
Abstract: This study is aimed at determining the optimal maintenance model for utilizing both preventive and corrective costs control system. It was assumed that operating conditions and pipeline diameters were uniform following the cumulated results and computational analysis. The research included an estimation which shows that the average cost for the installation and of course the maintenance of a healthy and operational pipeline is within $1,989,992 per km. Considering the failure …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 23–29 Read article
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Comparative Analysis of Serial and Parallel Robot Mechanisms for Industrial Automation
Abstract: Serial and parallel manipulators represent two major mechanical architectures in industrial automation, each with distinct strengths and trade-offs. This study presents a detailed comparative analysis of serial-chain (open-kinematic) robots and parallel-kinematic manipulators (PKMs) with a focus on industrial automation tasks. It covers kinematics, static accuracy and stiffness, dynamics and actuation requirements, control and calibration burdens, workspace and singularity behaviour, and practical industrial considerations (cost, integration, safety, maintenance). Serial robots, exemplified …
Published in International Journal of Robotics and Automation in Mechanics · Vol. 3, Issue 2, 2025 · pp. 22–26 Read article
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Evaluation of Agro-based Adsorbents for Oil Spill Remediation in Freshwater and Saltwater Environments: Kinetic and Adsorption Model Analysis
Abstract: Environmental pollution caused by oil spills poses significant risks to both human health and ecosystems, particularly in regions like Nigeria’s Niger Delta, where oil spills are frequent. Conventional methods for oil spill cleanup have limitations, which has prompted research into alternative, more effective techniques. This study investigates the use of agro-based materials, specifically plantain and banana species, combined with clay soil as adsorbents for oil removal in freshwater and saltwater …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 22–32 Read article
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SYNTHESIS OF LOCAL OIL-BASED MUD FOR NIGER DELTA WELLS USING ELAEIS GUINEENSIS
Abstract: Abstract Edible oil is produced from palm kernel (Elaeis Guineensis), a widespread tropical fruit that has a specific gravity of approximately 0.9°C, a flash point of 242°C, a flash point of 251°C, and a pour point of 22°C. This experiment was conducted by replacing liquid paraffin oil, a known component of conventional oil-based mud, with palm kernel oil (PKO) in the synthesis of a new oil-based mud from local materials. …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–12 Read article
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Performance Evaluation of First and Second-order Incremental A/D Converters
Abstract: This paper presents the design of first and second-order incremental analog-to-digital converters (ADCs). The characteristics of converters are extremely wide from Giga samples to a few samples per second for bandwidth and resolution variation from a few bits to more than 20 bits. Delta sigma converters are most commonly used high-resolution A/D converters. In instrumentation and measurement applications, the continuous operation, the large offset and inaccurate gain of delta-sigma does …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 3, 2013 · pp. 14–18 Read article
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Development of Mathematical Model to Monitor the Deposition of Nitrogen Inhibited by Lead in Consolidated Lateritic Formation
Abstract: This paper monitors the depositions of nitrogen inhibited by lead in consolidated lateritic formation. The study expresses the accumulation from lateritic depositions of lead in the formation. Such conditions were observed in lateritic soil. Lead depositions were thoroughly evaluated to see if it can inhibit the deposition of nitrogen in consolidated lateritic formation. Such outside the deltaic depositions were lateritic soil predominantly deposited in such location. The study observed that …
Published in Journal of Geotechnical Engineering · Vol. 6, Issue 1, 2019 · pp. 1–8 Read article