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309 articles for “Compressibility”
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Snow Compression Property Assessment Using Several Cross-Section Compression Pressure Vessels
Abstract: Effects of the cross-section shape of snow compression pressure vessels on snow compression properties between snow compaction density ρ and axial formation pressure pz were investigated to obtain basic data to support snow compression pressure vessel design. Snow compression pressure vessels with cylindrical, square, and rectangular cross sections were used for those experiments. Results show that the axial formation pressure pz changed from 2.0 to 4.0 MPa. The cylindrical cross …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 2, 2017 · pp. 30–46 Read article
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Compression-Only Life Support (COLS) for Laypersons: A Practical Approach to Cardiac Emergency Management
Abstract: Hemodynamic tissue perfusion is regulated by the pumping heart; the specialized cardiac cells have an autorhythm property that enables the heart to beat throughout life. When the pumping capability of the heart diminishes due to tissue ischemia, it leads to dysfunction. Pathological factors result in a decreased supply of blood to cardiac cells. Coronary circulation is at risk of stenosis due to spasm, plaque, or sclerosis, causing tissue hypoxia, injury, …
Published in International Journal of Cardiovascular Nursing · Vol. 12, Issue 1, 2026 · pp. 37–40 Read article
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Design and Fabrication of Pedal Operated Air Compressor
Abstract: The first idea for powering the pump would be a stationary bicycle. Pedal power is simple, efficient, and practical. Its most familiar use is the bicycle for personal or cargo transportation. But pedals can also power small stationary machines. Since the system is to remain human powered and large amounts of power are required, having the operator use their stronger leg muscles was intuitive. A stationary pedal driven device seemed …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 6, Issue 1, 2020 · pp. 21–29 Read article
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Review on Effect of Exhaust Gas Recirculation (EGR) on Performance of Compression Ignition (CI) Engine and Homogeneous Charge Compression Ignition (HCCI) Engine
Abstract: Energy conservation is a trending topic in the world. But only saving energy is not the primary aim, there is a need for clean and efficient source of energy to reduce the pollution. Compression ignition engine is the preferred prime movers due to excellent drivability and higher thermal efficiency. Even though it has many advantages, it also has major drawbacks as it produces higher level of NOx and smoke emissions …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 11–20 Read article
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Computation of Compressor Components Failure and Maintenance Characteristics
Abstract: The computation of the compressor components failure and maintenance characteristics as related to the major parts are described in this research. The research projected the root cause of the compressor components failure as well as projected the necessary measure to reduce such occurrence in the gas compressor operation. The parameters of the Mean time between failure, failure rate, downtime maintenance, reliability, unreliability, and availability were commutated respect to the number …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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The Effect of Compression Ratio on the Performance and Emissions of Internal Combustion Engine Using Oxy Fuels
Abstract: Energy sources are becoming a major issue, with the main concern being cost and continuous supply. The production of oxy fuels is cheap, simple and environmentally friendly, as well as being able to be produced locally, reducing the cost of transporting fuel. Oxy fuels are used as a pure fuel directly in an engine or can be mixed with fossil fuel. The fuels granted under oxy fuels are methanol, ethanol, …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 5, Issue 2, 2019 · pp. 1–10 Read article
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Data Compression in Backbone Network
Abstract: In the realm of modern computing and extensive data transmission, the efficient management of network resources is paramount. This paper introduces a novel approach, a data compression system meticulously designed backbone network. The proposed system aims to streamline data compression, significantly curbing network b and width demands, and thereby enhancing network performance. Tailored to the unique requisites and limitations of backbone network environments, the solution optimally balances compression ratios and …
Published in International Journal of Digital Communication and Analog Signals · Vol. 10, Issue 2, 2024 · pp. 1–6 Read article
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Hybrid Methodology for Compression of Remote Sensing Imagery Using Huffman and Run-length Coding
Abstract: The remote sensing imagery generated by the onboard sensors of various satellites are contained in several wavelength bands. These bands constitute high resolution that occupy a lot of storage space and memory. Moreover, the downlink transmission to the ground station for these images requires high bandwidth. Therefore, the high-resolution satellite imagery needs to be compressed so that more number of images can be transmitted without any significant loss of information …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 10, Issue 1, 2024 · pp. 17–24 Read article
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Effect of Compression Pressure on the Strength and Fuel Properties of Maize Cob Briquettes
Abstract: Biomass can be densified under a high compression pressure or a low compression pressure. The type of raw material, moisture level, particle size, and form typically all influence how much pressure should be used. This study utilized maize cobs and waste paper pulp to produce briquettes which are seen as alternative fuels. The goal was to determine how compression pressure affected the strength and fuel characteristics of the briquettes that …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 1, 2022 · pp. 16–24 Read article
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A study on effects of mass flow rate and compressor pressure ratio on gas turbine cycle performance
Abstract: Gas turbines are rotating machines that work based on the energy of gases from combustion. Each gas turbine includes a compressor to compress air, a combustion chamber to mix air with fuel and ignite it, and a turbine to convert the energy of the hot, compressed gases into mechanical energy. Gas turbines have many advantages over steam turbines, such as small volume, quick installation, quick start-up, easy operation and the …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Effects of Compressor Pressure Ratio and Combustion Chamber Exhaust Gases Temperatures on Gas Turbine Cycle Performance
Abstract: Today, we are seeing an increasing share of gas power plants in the production and supply of electricity therefore, it is essential to know the impact of different factors on the performance of these plants.The main purpose of this study is to investigate the effect of different parameters such as compressor pressure ratio and temperature of the combustion chamber on the performance of gas turbines .First, the thermodynamic relationships governing …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 1, 2020 · pp. 1–6 Read article
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CFD on Parametric Analysis of Compression Ignition Engine by using Star CCM+
Abstract: Stringent emission from the conventional vehicles draws attention of automobile researches to develop engine either high fuel efficiency and low emission of NOx, CO and unburnt hydrocarbons. Hence, there by Homogeneous charge compression ignition came to the effect. Homogeneous charge compression ignition engine is the type of engine the well organised mixture of air and fuel ratio enters into the combustion chamber, and it is compressed up to auto-ignited temperature …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 7, Issue 2, 2021 · pp. 27–66 Read article
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A Quasi-experimental Study to Evaluate the Effectiveness of Normal Saline Compress on Thrombophlebitis among Patients in Selected Hospital, Krishnagiri District
Abstract: The present study was undertaken to assess the effectiveness of normal saline compress on thrombophlebitis among patients in selected hospital at Krishnagiri District. The aim of the study is: (1). To asses and compare the pre- and post-test levels of thrombophlebitis among patients in study group and control group. (2). To determine the effectiveness of normal saline compress on thrombophlebitis among patients in the study group. (3). To associate the …
Published in International journal of Nursing Science Practice and Research · Vol. 5, Issue 1, 2019 · pp. 90–100 Read article
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Regration Analysis of Compressive Strength of Recycled Aggregate Concrete with Ground Granulated Blast-Furnace Slag and Fly Ash
Abstract: In this research work presents the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) that coming from single source and the results of an investigation on the influence of recycled coarse aggregate (RCA) on compressive strength of recycled concrete are accessible. Natural aggregates concrete cubes were cured in normal water for 28-days obtain virgin and RCA. The properties of natural coarse aggregate (NCA) and (RCA) and …
Published in International Journal of Concrete Technology · Vol. 8, Issue 1, 2022 · pp. 9–16 Read article
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Compressive Strength and Chloride penetration on Semi-Lightweight Concrete Made Up of Artificial Aggregates
Abstract: This paper deals with the properties of semi-Light weight concrete prepared by using Light weight wood ash pellets as coarse aggregates. It can be prepared by varying the cement content from 300 to 450 kg/m3. Optimum design mix can be finalised by studying the engineering properties such as compressive strength, split tensile strength, young’s modulus and rapid chloride penetration test. Various trial mixes have been attempted in the laboratory by …
Published in International Journal of Concrete Technology · Vol. 9, Issue 2, 2023 · pp. 14–25 Read article
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Plastics Compressive Strength Testing
Abstract: Compression test is a mechanical test that determines how much compressive force a material to resist before cracking. A gradually applied load compresses the test item, which is commonly in the shape of a square, pyramid, or cylinder, between the platens of a compression-testing machine. Many ductile metals, such as mild steel, have extremely high compression strength, yet measuring them is challenging. Whenever a load is given to a ductile …
Published in International Journal of Composite Materials and Matrices · Vol. 7, Issue 2, 2021 · pp. 46–50 Read article
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Evaluating the Reciprocating Compressor Components Failure and Downtime
Abstract: The investigation on the evaluation of reciprocating compressor component failures using the reliability approach was examined for a period of five (5) years. The components monitored were valves, seal, pistons, bearing, O-rings, and cylinders and the numbers of failure per year were obtained as 10, 8, 2, ,7, 9 and 4 for the first year, 6 6, 2, 5, 7 and 2 for the second year, 7, 6, 2, 3, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 2, 2024 Read article
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Mathematical Model to Monitor Concrete Compressive Strength Partially Replaced with Periwinkle and Palm Kernel Shell as Aggregate
Abstract: This research work monitor that application of periwinkle and palm kernel shell as partial replacement for aggregate, the study are carried out applying modeling and simulation techniques, concrete are normally heterogeneous in most cases, but the study try to examine the growth rate of the material on their compressive strength, such process were carried out using these two locally sourced material at different percentage of replacement for aggregate, the study …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 6–28 Read article
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Parametric Appraisal for Compression Behaviour of Machine Made Carpet: Exploration of Taguchi Optimisation Techniques
Abstract: Carpets and rugs are mainly classified into two types as hand-made carpets and machine-made carpets, in present; various machine carpets are available produced with needling and bonding techniques. In this study, an attempt has been made to identify the significant factor affecting the compression behavior of machine made carpets manufactured by M-Tuft hi-tech machine with exploration of Taguchi robust design philosophy for quality and productivity characteristics optimization. Lower the better …
Published in International Journal of Manufacturing and Materials Processing · Vol. 3, Issue 2, 2017 · pp. 16–22 Read article
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Study the effect of lubrication on hardness in the ring compression test
Abstract: Mild Steel is commonly used to produce automotive parts such as shafts, gears and bearings. This paper focuses on the hardness distribution in the mild steel ring specimen after compress under rigid dies. Three different types of lubricants namely boric acid, Vaseline, grease and dry condition were employed as lubricants and the coefficient of friction corresponding to the lubricant evaluated using standard ‘Ring compression test’. The strain distributions obtained from …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 2, 2019 · pp. 18–27 Read article