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85 articles for “Compression”
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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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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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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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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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Performance Analysis of High-Volume Fly Ash and Recycled Aggregate in M50 Concrete: Workability and Compressive Strength
Abstract: Abstract This study evaluates the impact of recycled aggregate (RA) and high-volume fly ash (HVFA) on the workability and compressive strength of M50 grade concrete. Slump tests were conducted for various water-cement ratios, using a mix ratio of 1:0.69:2.29 and a high-range water reducer. The compressive strength of concrete mixtures incorporating varying percentages of RA and FA was measured at 7, 28, and 90 days. Results indicate that replacing natural …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 25–32 Read article
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Assessment of M30 Concrete Compressive Strength Using Digital Rebound Hammer and Destructive Testing
Abstract: Abstract The assessment of in-situ concrete strength using non-destructive testing (NDT) techniques hasbecome increasingly important for quality assurance, structural evaluation, and conditionassessment of concrete infrastructure. Among the available NDT methods, the digital reboundhammer offers a rapid, economical, and non-destructive means of estimating concretecompressive strength. This study experimentally investigates the correlation between reboundnumbers obtained from a digital rebound hammer and the compressive strength of M30 gradeconcrete determined using a Compression Testing …
Published in International Journal of Structural Engineering and Analysis · Vol. 12, Issue 2, 2026 Read article
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Enhancing Compressive Strength of Geopolymer Concrete with Micro and Macro Steel Fibers: A Study on Fiber-Reinforced Geopolymers
Abstract: AbstractThis research investigates the impact of micro and macro steel fibers on the compressive strength ofgeopolymer concrete (GPC). The study utilizes locally sourced materials, including river sand,granite aggregates, fly ash, and ground granulated blast furnace slag (GGBS) in a 50:50 ratio asalumino-silicate materials. Sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) were employedas activators, with the addition of a superplasticizer (Conplast SP430) to enhance workability. FourGPC mixes were analyzed: GPC without …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 2, 2024 · pp. 15–20 Read article
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Comparative Design and Performance Analysis of Axial Flow Compressor Blades Using Various Materials
Abstract: This study presents a comprehensive design and performance analysis of axial flow compressor blades using various materials to improve efficiency, durability, and performance. Axial flow compressors are critical components in aircraft engines and industrial gas turbines, and the choice of blade material significantly impacts their functionality under extreme operational conditions. The analysis explores several materials, including traditional alloys, advanced composites, and high-temperature resistant metals, evaluating their mechanical properties, thermal stability, …
Published in International Journal of Mechanics and Design · Vol. 10, Issue 2, 2024 · pp. 7–15 Read article
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Influence of Recycled Aggregate and Steel Fiber on the Compressive Strength of Concrete: A Comparative Study of NAC and RAC Mixes
Abstract: Abstract This study evaluates the impact of varying proportions of recycled concrete aggregate (RCA) and steel fiber content on the compressive strength of concrete mixes. Five concrete mixes were prepared with different percentages of RCA (0%, 25%, 50%, 75%, and 100%), using a constant water-to-cement ratio (w/c) of 0.55. Additionally, each mix included variations with 1% and 2% steel fiber by volume, corresponding to 78.5 kg/m³ and 157 kg/m³, respectively. …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 11–16 Read article
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A Review on Hybrid Honeycomb Engine Mounts for Vibration Isolation in Variable Compression Ratio Engines
Abstract: The increasing sophistication of modern engine systems has highlighted the importance of advanced vibration control methods. Engines today are required to function under continuously changing operating conditions, particularly in Variable Compression Ratio (VCR) systems, where vibration behavior becomes highly complex, non-linear, and dependent on time. Under such circumstances, conventional engine mounts often struggle to deliver stable and consistent performance. In contrast, hybrid honeycomb structures offer significant advantages due to their …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 29–34 Read article
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Multiple Regression Analysis of Compressive, Flexural, and Split Tensile Strength in M40 Grade Concrete
Abstract: Concrete plays a key role as a construction material across the globe. The strength parameters of the concrete are primary reason for which it is designed for. The design mixed concrete has multiple strength parameters like compressive strength, spilt tensile strength, flexural (bending) strength etc. For each newly design mixed concrete, the mentioned strength parameters are tested for various time duration like 3 days, 7 days, 14 days, 28 days …
Published in International Journal of Construction Engineering and Planning · Vol. 11, Issue 2, 2025 · pp. 20–34 Read article
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Influence of GGBFS Content and Curing Methods on the Compressive Strength of Coconut Shell Concrete: A Mix Design Approach for Sustainable Construction
Abstract: AbstractThis study explores the development of a coconut shell concrete (CSC) mix design using theACI211.298 guidelines, targeting a compressive strength of 20 MPa for structural applications. Dueto the organic and flaky properties of coconut shell (CS), achieving the initial target strength of 40MPa was challenging, necessitating a focus on optimizing mix proportions for a 20 MPa goal. Theresearch investigates three different mixes with varying percentages of ground granulated blastfurnace slag …
Published in International Journal of Structural Engineering and Analysis · Vol. 10, Issue 2, 2024 · pp. 9–14 Read article
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Effect of Different Mix Compositions on Compressed Stabilized Earth Block Strength
Abstract: Climate change and global warming are pressing issues exacerbated by the rapid expansion of theworld's population and its housing needs. Traditional construction materials contribute significantly toenvironmental degradation through the generation of dust, solid waste, hazardous gases, and highenergy consumption. In response, this study focuses on exploring environmentally sustainablealternatives, with a particular emphasis on compressed stabilized earth blocks (CSEB). CSEBs aremasonry units formed by compacting soil, stabilizers, and water. This research …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 1, 2024 · pp. 33–43 Read article
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Third Generation Biofuel as Alternative Fuel for Compression Ignition Engine
Abstract: In recent years, many researchers have tested compression ignition engines with the goal of creating a diesel fuel alternative. This was also published in literature. The limited supply and increased cost of petroleum products are two main reasons for the search for alternate feedstocks for biodiesel. This paper reviews the potential of alternative biodiesel feedstocks to replace petroleum diesel, specifically focusing on algae biodiesel and the process for producing biodiesel. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 10–15 Read article
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Performance Evaluation of Geopolymer Masonry Units Using Fly Ash and GGBFS: Dimensionality, Density, Water Absorption, and Compressive Strength Analysis
Abstract: AbstractThis study investigates the production, properties, and performance of geopolymer masonry units,utilizing Class F fly ash and Ground Granulated Blast Furnace Slag (GGBFS) as primary binders.These binders were activated using an 8M alkaline solution, with the materials mixed alongsidemanufactured sand (M-sand) as the fine aggregate. The binder-to-aggregate ratio was maintained at1:1, while the alkaline solution-to-binder ratio was kept at 0.2. Various geopolymer masonry units,including geopolymer bricks (GPB), solid blocks (GPSB), …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 26–32 Read article
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Sugar Powder Impact on Strength of Concrete
Abstract: Abstract This experimental study examines the effect of adding sugar powder to concrete on its compressive strength. The research explores how sugar powder, when used as an additive in concrete mixtures, alters the concrete’s structural performance, particularly in terms of its ability to resist compressive forces. Through systematic testing and analysis, the study aims to determine the extent to which sugar powder can influence the strength and durability of concrete, …
Published in International Journal of Concrete Technology · Vol. 11, Issue 1, 2025 · pp. 15–21 Read article
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Experimental Investigation of the Influence of Coarse Aggregate Size and their Proportioning on the M30 Concrete for CC Pavement
Abstract: Abstract The nominal maximum size (NMS) and proportion of coarse aggregates significantly influence the mechanical properties and performance of cement concrete pavements. While extensive research has focused on concrete mix design, the combined effect of coarse aggregate size and aggregate proportioning on the compressive strength of pavement-grade concrete remains inadequately understood. This study experimentally investigates the influence of coarse aggregate characteristics on the compressive strength of M30 grade concrete. Two …
Published in International Journal of Concrete Technology · Vol. 12, Issue 2, 2026 · pp. 13–23 Read article
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Comprehensive Review and Analysis of Gas Turbine Power Plant Performance: Impact of Operating Conditions, Ambient Temperature, and Cycle Configurations
Abstract: This study presents a comprehensive review of gas turbine (GT) power plants, focusing on simple and complex cycles. The review examines the influence of operating conditions, ambient temperature, and cycle configurations on GT performance. Turbine work and thermal efficiency decrease with increasing ambient temperature. Thermal efficiency increases linearly with compression ratio, but decreases with ambient temperature. Specific fuel consumption (SFC) increases with ambient temperature and lower turbine inlet temperature. Compression …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 16–28 Read article
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Enhancing Geopolymer Concrete Properties Through Processed Fly Ash and Alccofine Integration
Abstract: Abstract Geopolymer concrete (GPC) is gaining attention as a sustainable alternative to ordinary Portland cement (OPC) due to its potential to reduce the environmental impact of cement production, which accounts for roughly 7% of global CO2 emissions. This study investigates the use of processed fly ash and alccofine as key ingredients in GPC to improve its workability and compressive strength. Experimental tests were conducted to evaluate the effects of different …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 2, 2024 · pp. 1–8 Read article