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259 articles for “Position control”
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Model Based Controller Design for Position Control of Servo Controlled Hydraulic Actuator against Air Entrainment
Abstract: Position control is important for numerous industrial and aircraft applications. Electro-hydraulic actuators are used for position control for advantages they provide over other actuation systems. The hydraulic fluid used for actuation, though desired to be incompressible, has some compressibility in practice. Entrainment of air in the fluid increases compressibility effect by reducing the effective bulk modulus. Reduced bulk modulus makes position control difficult. The paper studies the effect of effective …
Published in Journal of Mechatronics and Automation · Vol. 3, Issue 2, 2016 · pp. 25–35 Read article
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Research to Improve the Performance of Position Control System Using the SPMSM Based on the Time-varying High Order Sliding Mode Control Method
Abstract: This paper proposes the method of position control system design using permanent magnet synchronous motor (PMSM) based on the time-varying high order sliding mode control (TVHOSMC) strategy. In the conventional sliding mode control (SMC) system the chattering phenomenon appears in the vicinity of the sliding plane and while the error state of system reaches the sliding plane, the system is sensitive to the external disturbance and the parameter change. Thus, …
Published in Journal of Control & Instrumentation · Vol. 15, Issue 1, 2024 · pp. 29–44 Read article
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Investigation on Open Loop Position Control of Amplified Piezoactuator
Abstract: Amplified piezoelectric actuators (APAs) consist of stacked piezoelectric actuators inside a flexural mechanical amplifier which helps in amplifying the displacements of the piezostacks in static and dynamic conditions. Accounting for their precision movement and dynamic characteristics, these actuators are extensively used in micropositioning, active damping, and microactuation applications. In this paper, FEM analysis of mechanical flexural amplifier of APA230L piezoactuator was performed to estimate its stiffness in the horizontal direction …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 1, 2015 · pp. 16–24 Read article
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Scanning Electron Microscopy of Candida albicans Cell Wall on Tooth Surface after Fluconazole-Treated and Incubated with Guava (Psidium guajava L.)
Abstract: The cell wall of Candida albicans is a target of fluconazole. The content of guava (Psidium guajava L) is known to contribute factors to resistance of fluconazole.Objective: To characterize the surface alterations and the general shape changes of Candida cells after in vitro exposure to fluconazole and guava.Material and Methods: Six tooth specimen groups—Cells exposed without fungicidal doses (negative control), Positive cells exposed to maximal fungicidal doses of Fluconazole (100 …
Published in Research and Reviews: A Journal of Dentistry · Vol. 8, Issue 3, 2017 · pp. 10–17 Read article
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Parameter Identification of Vibrating MIMO Mass-Spring-Damper Mechanical Systems with Coulomb Friction
Abstract: This study presents a time-domain method for identifying parameters in multi-degree-of-freedom (DOF) linear mass-spring-damper systems that include Coulomb friction, where the friction coefficient varies within a limited range, using measurements of position and control force. For mass identification in single-degree-of-freedom (DOF) vibrating mechanical systems with stiffness and no damping but Coulomb friction, the friction term is eliminated by first derivative processing. In addition, the identification of the coefficient of friction …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 3, Issue 1, 2025 · pp. 20–34 Read article
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Anti-Depressant Activity of Aqueous Leaf Extract of Pergularia daemia in In-Vivo Animal Models
Abstract: The plant leaf of Pergulariadaemia was used for management of depressive state in various traditional system of medicine like Ayurveda, Unani and Siddha. In the absence of substantial pharmacological data, the present study attempts to study the antidepressant activity of Pergulariademia aqueous extract, by using forced swim test and tail suspension test. Animals were grouped into four treatment groups (n=4) and injected with normal saline (control), imipramine-10 mg/kg (Standard drug), …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 5, Issue 3, 2015 · pp. 21–26 Read article
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Adaptive-Hysteresis Current Controller Based Shunt Active Power Line Conditioners for Power Quality Improvements
Abstract: This paper presents three-phase shunt active power line conditioners (APLC) for harmonics and reactive powercompensation due to non-linear loads in the distribution network. The compensation process proposed is asinusoidal extraction control method, which consists of positive-sequence voltage detector for regulating thesupply voltage and instantaneous reactive power (p-q) theory for fundamental extraction from the distorted linecurrent. The shunt active filter voltage source inverter’s switching pulses are generated through an adaptivehysteresiscurrent controller …
Published in Journal of Power Electronics and Power Systems · Vol. 1, Issue 1-2-3, 2011 · pp. 1–13 Read article
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Assessment of Differential Global Positioning System (DGPS Technology for Generating Accurate Topographic Maps and Controls: A Case Study of Farin-Lamba to Kwali College Area"
Abstract: This study investigates the application of Differential Global Positioning System (DGPS) for topographic mapping and control point establishment in Farin-Lamba to Kwali College Area. The second order Survey controls extension are critical indices for ensuring structural and border control mechanisms in environmental development projects. However, creating these controls using traditional ways presents major obstacles. Most modern techniques are improvements on ancient approaches, which raises the possibility of environmental dangers and …
Published in International Journal of Land · Vol. 2, Issue 1, 2025 · pp. 11–23 Read article
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Role of Inflammatory Markers and Lipid Abnormalities in Glycemic Dysregulation Among Type 2 Diabetics
Abstract: Background: Diabetes mellitus (DM) is a chronic metabolic disorder characterized by systemic inflammation and associated with various complications in multiple organs. Type 2 diabetes mellitus (T2DM) specifically involves insulin resistance, hyperglycemia, and inflammatory responses. This study investigates the levels of various inflammatory markers and their correlation with glycaemic control in T2DM patients.Objective: To evaluate the levels of inflammatory markers (including NLR, PLR, SII, SIRI, CRP, IL-6, TNF-α, TGF-β, MCP-1, IL-4, …
Published in Emerging Trends in Metabolites · Vol. 2, Issue 2, 2025 Read article
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Evaluation of Anti-cataract Potential of Carbocisteine by Using In Vitro Goat Lens Model
Abstract: This study includes Carbocisteine has four Oxygen molecules, one Sulfur molecule, and one Nitrogen molecule. Goat eyeballs were used in the present study. They were obtained from the slaughterhouse. Glucose at a concentration of 55 mM was used to induce cataracts; glucose (5.5 mM) concentration served as a normal control, and Ascorbic Acid served as a standard control. Incubation of lenses with glucose 55 mM showed opacification starting after 8 …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 16, Issue 2, 2026 Read article
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A Clinical Study on Comparing the Efficacy of Areca Catechu Mother Tincture with Areca Tea in Control of Blood Sugar Level Among Healthy Individuals
Abstract: Areca tea of Nivedan Nimpe is trending among diabetic group as preventive and curative diet. Areca Catechu is one of the Indian homoeopathic drugs. There is no authentic literature source to indicate the action of Areca against diabetes, so authors have investigated immediate action on blood sugar level among healthy individuals. Selection of volunteers was done on the basis of inclusion and exclusion criteria. Volunteers were randomly divided into three …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy Read article
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A Clinical Study on Comparing the Efficacy of Areca Catechu Mother Tincture with Areca Tea in Control of Blood Sugar Level Among Healthy Individuals
Abstract: Areca tea of Nivedan Nimpe is trending among diabetic group as preventive and curative diet. Areca Catechu is one of the Indian homoeopathic drugs. There is no authentic literature source to indicate the action of Areca against diabetes, so authors have investigated immediate action on blood sugar level among healthy individuals. Selection of volunteers was done on the basis of inclusion and exclusion criteria. Volunteers were randomly divided into three …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 8, Issue 2, 2021 · pp. 5–8 Read article
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In vivo Modulatory Effect of Clerodendrum Splendens (Glory Blossom) in Aluminum Induced Alzheimer Diseases and Lonchocarpus Sericeus in Rotenone Induced Parkinson’s Disease on Na+/K+ Atpase (Sodium Pump) in the Cerebral Tissues of Male Albino Wister Rats
Abstract: Elegant research has shown that plants are useful for both curative and preventive purpose on the humans populous. Prevalent among diseases associated with humans are neurological diseases which affect a large sector of the population especially the elderly. The most common neurological diseases are Parkinson and Alzheimer disease which affect a large sector of the brain and also cause an imbalance in brain electrolyte. Among such electrolytic mechanisms of the …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 1, Issue 2, 2023 · pp. 31–36 Read article
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Anti-microbial Activity of Herbal Plant Extracts
Abstract: The Microbial resistance to major antibiotics due to overuse of them and problem observed rapidly during treatment of infectious diseases having a big challenge in health sector. Recently many researchers have been finding the solutions for come out these problems. There are many photochemical have been available, they have potential antimicrobial property against microbial species which occurs resistance against antibiotics. The present study is therefore an attempt for review on …
Published in International Journal of Tropical Medicines · Vol. 1, Issue 2, 2024 · pp. 40–52 Read article
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Assay of the Antitrypanosomal Activity of Ziingiber Officinale Extract in Wister Rats
Abstract: This research investigated the antitrypanosomal effects of Zingiber officinale in rats infected with Trypanosoma brucei brucei. Twelve adult rats, 7 weeks old and of both sexes, were randomly divided into six groups (1 through 6), with each group consisting of two rats. All six groups (1–6) were intraperitoneally injected with 0.1 ml of blood containing 10⁶ Trypanosomes/ml. Groups 1–4 received daily intraperitoneal doses of the plant extract at concentrations of …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 14, Issue 1, 2025 · pp. 32–37 Read article
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The Patterns of Enamel Rod after Exposure to Probiotic Beverages
Abstract: Probiotic beverages have a taste of acid that is produced by fermentation of probiotic bacteria. The acid condition can affect the structure of tooth enamel. The structure of tooth enamel is formatted by enamel prism that is composed by hydroxyapatite (HA) crystals. According to several studies, HA has a critical pH <5.5 and can be changed in 180 min by acid. The objective of the study is to describe enamel …
Published in Research and Reviews: A Journal of Dentistry · Vol. 3, Issue 2, 2012 · pp. 28–36 Read article
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Toxicological Evaluation Of Two Nigerian Refinery Effluents Using Natural Biomonitors
Abstract: Abstract The present study aimed to evaluate the toxic effects of two Nigerian refineries’ effluents using natural bio-monitors. Standard physicochemical analysis, toxi-chromo test using mutant E. coli and sub-chronic animal toxicity testing with emphasis on tissue heavy metal accumulation, biochemical parameters and histopathology, were adopted during the study. The physicochemical results revealed that the two effluent samples are highly polluted although PH sample was more polluted than the Warri sample. …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 2, 2020 · pp. 22–31 Read article
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Sensor Less Control of PMSM using SMC and SMO
Abstract: Some particular PMSM applications do not allow for the proper mounting or use of position sensors. A number of PMSM control problems can be resolved with sensorless PMSM control. It is crucial to have a precise predicted position while avoiding the chattering issue for sensorless PMSM control. This paper establishes a prerequisite for a sliding mode observer (SMO) to enter a sliding surface and offers a sigmoid-based algorithm for position …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 2, 2022 · pp. 27–35 Read article
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Self-Regulated Automatic Ventilation of Vehicle Interior
Abstract: In order to mitigate overheated interior of a vehicle parked in the hot summer sun and thereby to make the entering into the vehicle more comfortable, microcontroller managed module for automatic ventilation of vehicle interior is made. The module is implemented using a microcontroller as a central logical unit and a series of sensors which provide sufficient data to ensure functional, but also efficient, reliable and safe ventilation. The ventilation …
Published in Journal of Mechatronics and Automation · Vol. 3, Issue 2, 2016 · pp. 48–53 Read article
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Occupational Stress and Locus of Control among Print Media Journalists
Abstract: The present study is conducted to study the level of occupational stress and Locus of control among Print media journalists with less than and more than five years of work experience. The study is adopted 2X2 factorial design. A purposive sample of 120 print media journalists between 25 to 40 years of age is selected for the study. The result of the study is indicated no significant gender difference in …
Published in Research and Reviews: A Journal of Health Professions · Vol. 12, Issue 1, 2022 · pp. 39–56 Read article