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131 articles for “Instabilities”
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Slope Stability Problem in the Chittagong City, Bangladesh
Abstract: Chittagong, the major port city of Bangladesh is seriously and violently vulnerable for landslide from geological and geographical point of view for many specific reasons. Along with the steep slope, slope cutting, natural weathering and antecedent rainfall causes for landslide of the city during the rainy season caused by thunderclap of heavy storms. This paper presents a quantitative analysis of slope instability problem of the Chittagong city by technical and …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 13–25 Read article
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Study of Fire Safety Management for Hospitals in Amravati City
Abstract: Hospitals are considered a place of hope and offers sense of security in the aftermath of a disaster situation. Safe hospitals have symbolic social value; losing a health facility leads to a sense of insecurity and social instability. Disaster-resilient hospitals must be able to protect the lives of patients and staff and continue to function. Hospitals need to ensure structural safety, non-structural safety and functional safety. The responsibility to take …
Published in Journal of Industrial Safety Engineering · Vol. 2, Issue 3, 2015 · pp. 17–16 Read article
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Instrumentation for Drum-Boiler Water Level Control with MPC and Robust Controller
Abstract: AbstractDrum boilers are used for continuous steam generation in industrial instrumentation on large scale. Controlling and instrumentation aspect in boiler process is highly stringent as the system is highly complex and exhibits nonlinearity, the transient behavior of boiler operation varies with load requirement as it is multivariable dependent. The main cause of instability in drum boiler operation is due to the uneven monitoring of liquid level due to swiss and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 1, 2018 · pp. 1–7 Read article
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Optimal Location of SVC by Particle Swarm Optimisation Techniques in Power System Networks
Abstract: AbstractIn power system networks, voltage stability is a main concern for safe operations. But recently due to their stressed operations for increasing load, voltage instability and voltage collapse are evitable, which are main problems in the power system. In this paper, the particle swarm optimization (PSO) technique have been used for optimal location of Static Var Compensator (SVC). The Optimal value of SVC at optimal location through PSO technique is …
Published in Journal of Instrumentation Technology & Innovations · Vol. 10, Issue 1, 2020 · pp. 12–18 Read article
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Enhancement of Power Quality in a DG-Integrated Smart Grid Using UPQC
Abstract: The goal of this presentation would be to demonstrate how an upqc conditioner may be used to improve the strength of a dispersed energy (DG) system (UPQC). Despite the potential advantages of DG, which include increased energy supply, reduced power system growth, and environmental friendliness, there are numerous problems assimilating DG into the system or sustaining it in standby mode. Voltage profile (PQ) is a significant technological barrier in dispersed …
Published in Journal of Microcontroller Engineering and Applications · Vol. 9, Issue 1, 2022 · pp. 29–34 Read article
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Heavy Fermions to the Scheme from Semimetals
Abstract: This article is a study about heavy Fermions to scope strange and unknown features of scattering accounted to conduction electrons in the metal. Nucleons generated by heavy metal compounds are named heavy fermions. These generate from magnetic impurities that are present in the matter as unusual distribution in particulate forms. Parameter of quasi-crystal lattice instability of these compounds has significance in response to behave as non-Fermi liquids affected under magneto-transport. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 2, 2021 · pp. 15–22 Read article
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Synthesis and Experimental Evaluation of Graft Polymer Nanocomposite in Water Based Drilling Fluid System for Reactive Unconventional Reservoirs
Abstract: AbstractThis experimental work discusses the evaluation of polyacrylamide-grafted-gum arabic/carboxymethyl cellulose nanocomposite as a drilling mud additive for the drilling of reactive shale formations which may lead to wellbore instability. The synthesized nanocomposite was synthesized with free polymerization technique and it was characterized by XRD, FTIR, and FESEM. Then, it was preceded in the development of the WBDMS. Its effect on the rheological and filtration control properties of the formulated mud …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 34–41 Read article
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Characterization of Glass/Jute Hybrid Fibre Reinforced Epoxy Composite for Axial Flow Fan Blade
Abstract: Traditionally axial flow fan blades were manufactured by using metal alloys, but with the increase in blade size the blades grew heavier resulting in more vibrations during its working. It is impossible to manufacture the metallic blades to close tolerances making it uneconomical. Due to this dimensional instability, the metallic impeller fan blades are instead fabricated with glass fiber reinforced plastics (GFRP). To reduce the after effects of GFRP blades …
Published in Journal of Polymer & Composites · Vol. 7, Issue 3, 2019 · pp. 32–43 Read article
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Available Transfer Capability (ATC) under Deregulated Environment
Abstract: The structure of the power industry is moving towards deregulated environment from the regulatory environment (monopoly). With deregulation taking place in the power industry, it introduces a more competitive environment in terms of free choice of suppliers for the trading of electricity. Monopolies of an industry will lead to a poor performance from the sector as there are no competitions for the sole company to strive for improvement. It will …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 85–88 Read article
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A Review on Cascade Tripping and Islanding Scheme
Abstract: Large black outs typically involve sophisticated and cascading chains of events. Giant blackout though sporadic, is expensive to society with estimates of direct prices up to billions of bucks. There also are indirect prices like attainable social disruptions and also the propagation of failures into different infrastructures like communications, water system, fossil fuel and transportation. The very important importance of electrical power to our society motivates continuing attention to maintaining …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 24–27 Read article
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Shale Gas in India: Status and Challenges
Abstract: With decline of production in gas fields, India became sixth largest natural gas importer in the global market. Seeing the domestic demand, it is essential to unlock shale gas from different shale gas plays in India. The key elements of shale gas production include the extensive drilling campaign, the need for hydraulic fracturing and realization of global growing of production facilities and flowlines. Also, advanced technologies are required for development …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 23–32 Read article
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Physicochemical Characterization of Niger crude for processing and transport
Abstract: Niger crude oil physic chemical properties which influence it processing and flow behavior was investigated in this study. The bulk characterization includes specific gravity, viscosity, pour point, freezing point, wax content, sulfur content, SARA fraction and the Colloidal Instability Index analyses. Results indicate that the crude oil is paraffinic, light and sweet with high wax content (24.8%).The rheological behavior studied from the viscosity variation show that it is very viscous …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 38–43 Read article
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Reduction in Stress Distribution in Horizontal Well Cementing
Abstract: Abstract: This paper addresses the stress distribution problem and effect on the cement behind the casing in the horizontal wells. The uneven stress distribution in the horizontal well causes crakes and breakage of the concrete which leads to various problems like instability of the bore hole in the affected region and secondly it paves path for flow of unwanted fluids in the cemented channels. Hence, to neglect this kind of …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 1, 2019 · pp. 38–40 Read article
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Finding The Most Sensitive Nodes on IEEE-14 Bus System and Adaptation of Protection Scheme
Abstract: Power system stability is one of the most significant concerns in power system. Providing continuous supply of electric energy to meet the load demand is a complex technical challenge. One of the main causes of voltage instability in a system is the occurrence of reactive power imbalance in the system. Reactive power will be unbalanced when there is a sudden increase or decrease in reactive power demand in the system. …
Published in Trends in Electrical Engineering · Vol. 6, Issue 1, 2016 · pp. 50–56 Read article
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Investigation of Electric Spring for LVRT Capability Improvement of Fixed Speed Induction Generator based Wind Farm
Abstract: This paper investigates the ability of electric spring (ES) for the low voltage ride-through (LVRT) capability improvement of fixed speed induction generator (FSIG) based wind farm (WF). With increased renewable energy integration, new grid codes are declared by various power system grid operators in order to maintain system stability. LVRT capability is the prime and most difficult requirement of these new grid codes. FSIG based WFs are largely installed but …
Published in Trends in Electrical Engineering · Vol. 6, Issue 3, 2016 · pp. 1–10 Read article
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Integrating Sensor Technologies and Machine Learning for Detection and Mitigation of Structural Deformity and Slope Failure in Opencast Mines
Abstract: With furtherance in the mining industry, accidents due to slope failure are frequent in mining sites. Slope instability, a complex process, seriously threatens the miner’s life and properties. The damage inflicted by slope failures in the recent past has pulled the attention of authorities toward implementing disaster risk reduction measures. This research aims to develop an innovative approach that combines sensor technologies and machine learning techniques to detect and mitigate …
Published in Journal of Communication Engineering & Systems · Vol. 13, Issue 3, 2023 · pp. 38–45 Read article
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A Study on Efficacy of Movement with Mobilization Versus Graded Oscillatory Technique in the Management of Pain and Shoulder Function Among Shoulder Impingement Subjects
Abstract: Many conditions affecting shoulder which includes rotator cuff tear, frozen shoulder, shoulder instability, bursitis and shoulder impingement. Impingement usually refers to compression and mechanical aberration of the rotator cuff tendon, subacromial bursa, or long head of biceps tendon beneath the anterior under surface of the acromion, coracoacromial ligament or under surface of the acromioclavicular joint during elevation of arm. Another possible mechanism of impinge can be attributed to intrinsic breakdown …
Published in Research and Reviews : Journal of Computational Biology · Vol. 6, Issue 3, 2017 · pp. 20–35 Read article
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In silico Analysis of nsSNPs in the Human ACTN4 Gene associated with a Steroid-Resistant Nephrotic Syndrome
Abstract: The main motive of this study is to discover nsSNPs of ACTN4 gene through various insilico views. ACTN4 is one of the proteins that play a leading role in cellular pathways by altering cytoskeletal behaviour associated with steroid-resistant nephrotic syndrome. Data of ACTN4 was collected from NCBI dbSNP and Uniport KB and further used to explore adverse outcome using SIFT, PolyPhen, PROVEAN and SNAP2.Out of 11 nsSNPs selected in this …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 3, 2018 · pp. 43s–52s Read article
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Comparative Effectiveness of Surgical and Nonsurgical Management for Patients with Single Level Lumbar Disc Herniation in terms of Symptom Severity and Quality of Life
Abstract: Background: Sciatica is one of the most severe forms of low back pain, with a lifetime prevalence of approximately 30 percent. Aim: To assess the short-term and long-term efficacy of surgical and conservative care in the incidence of sciatic symptoms and quality of life in standard clinical settings among patients with lumbar disc herniation. Material and Method: It was a retrospective study conducted at the Medical Trust Hospital, Kochi, India. …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 10, Issue 1, 2020 · pp. 25–29 Read article
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An overview on the diagnosis and approaches in pharmacological management of Parkinson’s disease
Abstract: Parkinson’s disease (PD) might be a mutual neurodegenerative disease considered by a movement disorder containing rest tremor, bradykinesia, rigidity, and postural instability, and second-leading reason of dementia and is categorized by an advanced loss of dopaminergic neurons within the neural structure alongside the occurrence of intraneuronal α-synuclein-positive enclosures. PD is identified where bradykinesia happens along with rigidity or tremor within the existence of supporting features. The diagnosis is clinical, and …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 11, Issue 1, 2021 · pp. 1–8 Read article