Search
222 articles for “controlled pressurization”
-
Mathematical Analysis and Stability Analysis of Coupled Orbital–Attitude Dynamics for Autonomous Spacecraft under Perturbative Forces
Abstract: Autonomous spacecraft operating in Earth orbit are subjected to coupled translational and rotational dynamics influenced by gravitational and environmental perturbations. Accurate mathematical characterization of these interactions is essential for trajectory prediction, attitude stabilization, autonomous navigation, and mission reliability. This study develops a nonlinear mathematical framework for coupled orbital–attitude dynamics of an autonomous spacecraft under perturbative forces. The translational dynamics are formulated using the two-body gravitational model augmented by the second …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 15, Issue 2, 2026 Read article
-
Review of Subsea Pipeline for Minimizing Thermal and Pressure Expansion
Abstract: As the offshore oil and gas fields have been exploited in deeper water, subsea pipelines are required to operate at high temperatures and pressures. It causes subsea pipelines to be more subject to movements both in lateral and axial directions due to the loads produced by high temperatures and pressures. Some high temperature pipelines have experienced the cumulative axial displacement of an overall pipeline length over a number of start-up/shut-in …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 10–22 Read article
-
A Study on the Effects of Solar Energy: A Review
Abstract: AbstractThe quick increment in vitality utilization especially in the previous a very long while has raised feelings of trepidation of depleting the globe's stores of oil and different assets sooner rather than later. In the twenty first century, human call for brand spanking new energy assets is urgent, due to the fact the conventional fossil energy is unable to satisfy human desires, and the fossil resource will make pollution in …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 3, 2019 · pp. 16–21 Read article
-
Design of Sleeve for Multi-barrel Pellet Injector System: A Review
Abstract: A multi-barrel pellet injector system has been developed for plasma fueling of the tokamak fusion test reactor (TFTR). This paper describes the different arrangement of barrels along with design of sleeve for holding the barrels, for production and acceleration of pellets of different sizes. The in situ pipe gun concept with the use of compact cryo-coolers enables stable operation as a fundamental facility in plasma experiments. Pellets are accelerated in …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 10–14 Read article
-
Hydraulic vs. Electric: A Comparative Review of Brake and Clutch Actuation Systems
Abstract: This review article compares hydro and electric actuation systems for clutches and brakes in detail, examining their design concepts, characteristics, and probable uses. Long-used in the automotive sector, hydraulic appliances use fluid pressure transmission to function. They are dependable and easy to use, but they have drawbacks such fluid leaks and complicated systems. On the other hand, electromechanical actuators serve their purpose in electric actuation systems, which provide benefits including …
Published in International Journal of Machine Systems and Manufacturing Technology · Vol. 1, Issue 2, 2023 · pp. 20–27 Read article
-
Plc Hmi base testing machine data loger with usb excel data export
Abstract: The PLC-HMI-based testing machine data logger is designed to acquire, process, and log real-time sensor data using a PLC analog input card. This system is developed for industrial applications requiring accurate measurement, monitoring, and data storage. The setup integrates an HMI (Human-Machine Interface) for visualization and control, while a USB-based Excel data export feature ensures efficient data management. The system incorporates four key transducers: 1. Water Flow Sensor – Measures …
Published in Journal of Mechatronics and Automation · Vol. 13, Issue 1, 2026 · pp. 47–54 Read article
-
Performance Evaluation of Thermoacoustic Refrigeration System
Abstract: Today cooling technologies are going through a transformation phase. The advent of ozone layer depletion and global warming caused by the use of synthetic refrigerants has necessitated a search for alternative cooling technologies. Out of the several technologies which are emerging as alternatives, one technology that can provide cost effective refrigeration without using any of the environment degrading refrigerants is the thermoacoustic refrigeration system. Ideally, this device can be powered …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
-
Metal Forming Management: Through Efficient Technology System
Abstract: The paper gives an account of the control of technological parameters in the manufacturing areas of rolling, forging and extrusion, besides the analysis of their role-playing to yield a fit component of right and requisite mechanical properties. The control of process parameters, the various dependent and independent variables, with efficient and frequent monitoring of recommended/design process parameters is vital towards controlling the manufacturing and hence economy of the manufacturing process. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 60–72 Read article
-
AN EXPERIMENTAL INVESTIGATION ON SURFACE ROUGHNESS OF LASER BEAM MACHINING OF ALUMINIUM ALLOY
Abstract: Laser beam machining (LBM) is a cutting-edge technique widely utilized for precision machining of advanced materials. This experimental investigation focuses on the surface roughness of aluminum alloy (Al 6061) during LBM. The study systematically examines the impact of process parameters such as laser power, cutting speed, and gas pressure on surface roughness (Ra). The significance of surface roughness in determining the quality and functionality of machined components is emphasized. The …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 82–104 Read article
-
Serum Magnesium, Iron, TIBC, and Hormonal Imbalances in Hypertensive Pregnant Women: A Comparative Study
Abstract: Pregnancy-induced hypertension (PIH), including gestational hypertension and preeclampsia, is a leading cause of maternal and fetal complications. The regulation of blood pressure and overall pregnancy health is influenced by micronutrients and hormones. This study aimed to evaluate serum magnesium, serum iron, total iron binding capacity (TIBC), thyroid profile, and quadruple marker levels in hypertensive pregnant women and compare them to normotensive controls. Methods: A total of 1056 hypertensive pregnant women …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 14, Issue 2, 2024 · pp. 41–45 Read article
-
A study to assess the effect of nature-based sound therapy during weaning among Mechanically Ventilated patients admitted in intensive care units of a selected tertiary care hospital Ludhiana, Punjab
Abstract: Weaning is a gradual transition from full invasive ventilatory support to spontaneous ventilation with minimal support. This conducted to assess the effect of nature-based sound therapy among Mechanically Ventilated Patients admitted in Intensive Care units. An experimental design (randomized controlled trial) was used to assess the effect of nature-based sound therapy during weaning among Mechanically Ventilated patients.30 patients were drawn from the target population by using convenience sampling technique and …
Published in Research and Reviews : Journal of Surgery · Vol. 13, Issue 1, 2024 · pp. 44–48 Read article
-
Braking System in Two Wheelers using Resistance of Air
Abstract: In this paper, we look at how motorcycle brake systems come in a variety of designs and technical solutions. An ABS system can be added to a traditional system with two independent circuits to improve safety and stability. By establishing a hydraulic link between the front brake control and the rear calliper, or vice versa, a combined braking system can be constructed to improve safety and comfort. This paper focuses …
Published in Journal of Automobile Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 25–28 Read article
-
Managing Blow-by in Modern Engines: A Comprehensive Review of Crankcase Ventilation Technologies
Abstract: Blow-by in internal combustion (IC) engines occurs when high-pressure combustion gases escape past the piston rings into the crankcase. These gases typically carry oil aerosols, unburned hydrocarbons, and fine particulate matter, which, if not effectively managed, can disrupt lubrication, accelerate component wear, and contribute to harmful emissions. Effective crankcase ventilation is therefore essential not only for ensuring engine durability but also for meeting increasingly stringent emission regulations. This paper examines …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 317–324 Read article
-
Silkworm Growth and Silk Yield under Changing Climatic Conditions: Challenges and Adaptations
Abstract: Climate change is emerging as a critical factor affecting agriculture and sericulture industries worldwide. Rising global temperatures, shifting rainfall patterns, and the growing frequency of extreme weather events present ever challenges to the growth and productivity of silkworms (Bombyx mori L.). Silkworms are extremely sensitive to environmental conditions like temperature, humidity, and photoperiod, all altered by climate change. Higher temperatures can accelerate silkworm metabolism, reduce silk yield, and increase susceptibility …
Published in International Journal of Insects · Vol. 1, Issue 2, 2024 · pp. 1–5 Read article
-
Molecular Interaction Study of Glycine in Aqueous Lactose Solution Using Volumetric, Acoustic and Viscometric Methods at Different Temperatures
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Density, viscosity, sound speed and refractive index of glycine in aqueous lactose solution at varying concentrations from 0.1035 to 1.0345 m at 298, 308, and 318 K have been determined using precalibrated bycapillary pycnometer, Ostwald’s viscometer and single frequency ultrasonic interferometer at 2 MHz frequency respectively. The derived acoustic parameters like apparent molal volume( ), apparent molal compressibility( ), specific acoustic impedance …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 1, 2012 · pp. 17–27 Read article
-
Thermo–Electrical Performance Enhancement of a Lightweight Polymer–Metal Hybrid Electrostatic Precipitator Using Epoxy-Based Composite Housing for Industrial Particulate Control
Abstract: Airborne particulate emissions, particularly PM₁₀ and PM₂.₅ produced by industrial activities and combustion processes, they continue to pose a significant threat to both the environment and public health. Electrostatic precipitators (ESPs) are widely recognized for their ability to achieve high collection efficiencies; however, conventional metallic constructions often lead to increased system weight, higher fabrication costs, and long-term corrosion-related challenges. In this study, a lightweight hybrid material approach is proposed by …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 652–668 Read article
-
Importance of inflammatory marker ratio and lipid profile ratio in Acute Ischemic Stroke
Abstract: Background: Acute Ischemic Stroke is a chronic inflammatory disease that is projected to be one of the leading causes of mortality affecting millions of people globally. It is essential to study the Platelet lymphocyte ratio (PLR), Neutrophil lymphocyte ratio (NLR) ratios and C reactive protein (CRP) in impacting the inflammatory status during stroke. It is also important that altered lipid metabolism could influence the inflammatory conditions associated with AIS. Hence …
Published in International Journal of Brain Sciences · Vol. 1, Issue 1, 2024 · pp. 19–31 Read article
-
Minimization of distortion during Gas Metal Arc welding process used for hydraulic shearing machine pressure plate square
Abstract: The Gas Metal Arc Welding process is widely used in many appliances because of its versatility. The change of shape and dimensions that occur after welding is known as distortion that leads to undesirable results. And to overcome this, it requires reducing the distortion within the limits. A large number of resources are used recently for reworking the weld. But it causes higher cost of production and delay for completing …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 33–43 Read article
-
A Study on Promoting Physiological Personalities of the Students by Vethathiri Maharishi’s Nine-Center Meditation Using Quantum Magnetic Resonance Analyzer
Abstract: AbstractThe nine-center meditation of simplified Kundalini yoga was formulated by sage Vethathiri Maharishi. It involves the following centers: Mooladhara, Swadhistana, Manipuraga, Anahatha, Visuddhi, Agna, Thuriya, Shakthi Kalam and Shiva Kalam. Meditation is done on all the nine centers, seven of which are endocrine glands located within the physical body and Shakthi Kalam, Shiva Kalam are universal field and absolute space respectively. Meditation commences at Mooladhara Chakra, followed by meditation on …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 3, Issue 1, 2014 · pp. 62–66 Read article
-
Pneumatic Operated Engine
Abstract: The increasing awareness of fossil fuel depletion & environmental pollution has accelerated the need for the development of sustainable & eco-friendly alternatives to traditional internal combustion engines. Pneumatically operated engines have been identified as a potential alternative for small-scale mechanical power generation owing to their advantages of zero exhaust emissions, noise reduction & operational safety. This paper describes the design, development & performance analysis of a pneumatically operated engine, which …
Published in International Journal of Mechanical Dynamics and Systems Analysis · Vol. 4, Issue 1, 2026 · pp. 1–7 Read article