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1373 articles for “S/N ratio”
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EFFECT OF RE-ENTRANT CORNER IRREGULARITY IN A STRUCTURE
Abstract: AbstractIrregularities are not avoidable in construction of a building. Building Structures are almost irregular, as ideal perfect regularity very rarely occurs now days. As far as buildings structures are concerned , for practical use , Indian seismic code divides irregularity in structure which are in plan irregularity and in elevation irregularity, but it had been found and realized that irregularity in structures is the result of a combination of both …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 3, 2017 · pp. 31–37 Read article
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Double Back Cylindrical Shaped Dielectric Resonator Antenna with Enhanced Gain and Bandwidth
Abstract: A cylindrical dielectric resonator antenna (DRA) is projected in this paper. This antenna consists of a double back cylindrical shaped DR. A metallic divest is functional at the surface of the DR. The necessary and advanced order cross modes are exhilarated in the antenna geometry because of the explicit structure. The antenna with double back cylindrical DR postulates the quantified axial ratio (AR) of 3dB with bandwidth of 10% in …
Published in Recent Trends in Parallel Computing · Vol. 5, Issue 2, 2018 · pp. 20–24 Read article
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CASE REPORT ON GIANT GALL STONE
Abstract: Gallstones (cholelithiasis) are hardened deposits of digestive fluids that can form in our gallbladder. The term cholelithiasis may refer to the presence of stone in Gall Bladder or to the diseases caused by gallstone. Most people with gallstone disease (about 30%) never have symptoms. Incidence gradually increases after 21yrs of age and it reaches the peak in 5th and 6th decade of life and rarely found in Pre-Pubertal age Group. …
Published in Research and Reviews : Journal of Surgery · Vol. 9, Issue 2, 2020 · pp. 6–9 Read article
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Utilization of Egg Yolk as A Non-Toxic Emulsifier in Environmentally Friendly Invert Emulsion Drilling Mud
Abstract: Vegetable oil such as Jatropha has been shown to be a comparable alternative to diesel and mineral oils for environmentally friendly oil based drilling mud. However compatibility of the vegetable oils with the usual chemical additives is still a major challenge that calls for compatible and non-toxic substitutes. This study examined the suitability of hen egg yolk as a non-toxic emulsifier in invert emulsion drilling mud using vegetable oil continuous …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 41–49 Read article
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Experimental Evaluation of Carbon Fiber Reinforced Epoxy Composites for Structural Applications
Abstract: Composites made of carbon fibre reinforced polymer (CFRP) are currently one of the most widely used material classes in advanced engineering applications because of their remarkable environmental resistance, dimensional stability, and strength-to-weight ratio. The vacuum bag moulding method was used in this study to create CFRP laminates with different fiber-to-resin weight ratios: 50:50, 55:45, 60:40, 65:35, and 70:30. The reinforcement phase was made of unidirectional carbon fibre fabric and the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 401–415 Read article
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Comparative Buckling Load Analysis of Thin Functionally Graded Material Plates with Variable Distributions: Power Law vs. Sigmoidal vs. Exponential
Abstract: A comprehensive comparative analysis of buckling load behavior in thin Functionally Graded Material (FGM) plates with variable material distributions is presented in this paper. FGMs, characterized by gradient composition, possess unique mechanical properties suitable for diverse engineering applications. The study focuses on three distinct distribution functions: Power Law, Sigmoidal, and Exponential, each exerting different influences on the material gradient. Finite Element Analysis is utilized in exploring the buckling response for …
Published in Journal of Polymer & Composites · Vol. 12, Issue 3, 2024 · pp. 98–105 Read article
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Pharmacodynamics and Drug–Receptor Interactions: Integrating PK/PD Modeling with Modern Drug Development
Abstract: Understanding drug action requires an integrated perspective of pharmacodynamics and pharmacokinetics, which together determine therapeutic efficacy and safety. This review provides a comprehensive overview of the mechanisms underlying drug action, with particular emphasis on drug–receptor interactions and their role in modulating physiological responses. Drugs exert their effects primarily through interactions with specific biological targets, including receptors, enzymes, ion channels, and transporters, resulting in a spectrum of desired and adverse outcomes. …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 16, Issue 2, 2026 · pp. 33–47 Read article
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Role of Solid Acid Catalyst in Isopropylation Reaction
Abstract: Cumene synthesis was carried out by the reaction of benzene with isopropyl alcohol in the vapour phase over rare earth metal modified 13X zeolite. Zeolite modification was done by exchanging sodium ions of the zeolite with cerium ions to vary the acidity of the catalyst in the range of 0.25‑1.36 meq/g. The synthesis was carried out over a wide range of operating conditions. The synthesis conditions were optimized by studying …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 2, 2015 · pp. 19–26 Read article
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Determination of the Mechanical Properties of Shape Memory Alloys
Abstract: Shape memory alloys are materials which can be deformed by cooling below a certain critical temperature and then regain their original shape after heating above this critical transition temperature.. Shape memory alloys (SMAs) are a class of functional materials that possess unique thermo mechanical properties, such as shape memory effect (SME), super elasticity (SE), damping, and good fatigue and corrosion resistance, which enable them to become ideal materials for applications …
Published in Journal of Mechatronics and Automation · Vol. 8, Issue 2, 2021 · pp. 1–9 Read article
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Implementation of a Bidirectional Double-Boost DC-DC Converter with a High Conversion Ratio
Abstract: This paper presents the design and implementation of a Bidirectional double-boost DC-DC Converter for renewable energy applications with a high conversion ratio. The system’s main circuit is the bidirectional buck/boost converter which manages and controls both charging and discharging mode functions. With very simple control circuits, the high conversion ratio is achieved using Coupled Inductor technique. With the motto to achieve high conversion ratio, one power switch is controlled for …
Published in Trends in Electrical Engineering · Vol. 5, Issue 1, 2015 · pp. 16–22 Read article
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Engineered Polymer Composites for Non-Surgical Lip Posture Correction in Facial Paralysis
Abstract: Facial paralysis presents significant functional and aesthetic challenges, particularly through lip posture deficits such as drooping and drooling, often inadequately addressed by traditional surgical or drug-based interventions, especially in debilitated patients. This study explores the application of engineered polymer composites in a novel, non-surgical lip posture corrector designed to statically suspend and correct lip position without requiring surgical or dental support. The device utilizes a precisely formulated blend of polymethylmethacrylate …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 Read article
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Design and Development of Fiber Sandwiched Composite Materials for the Improvement of Mechanical Properties
Abstract: This research paper presents the development and mechanical characterization of fiber sandwiched composite materials (FSCM) to address the increasing demand for high-strength, lightweight, and corrosion-resistant materials in advanced engineering sectors such as automotive, aerospace, and transportation industries. Traditional homogeneous materials such as metals, ceramics, and polymers often fail to provide a balanced combination of properties like high tensile strength, low density, toughness, abrasion resistance, and impact resistance needed for modern …
Published in Journal of Experimental & Applied Mechanics · Vol. 17, Issue 1, 2026 · pp. 22–37 Read article
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Formulation Challenges in Long-acting Injectable Small Molecules: Emerging Strategies and Perspectives
Abstract: Long-acting injectable (LAI) formulations represent a transformative approach in pharmacotherapy, particularly for conditions demanding sustained drug exposure over weeks to months. Although biologics have dominated this space historically, the adaptation of LAI technology to small molecules presents a distinct and complex set of challenges rooted in physicochemical properties, manufacturing scalability, and regulatory expectations. This review systematically addresses the principal formulation barriers encountered in developing LAI small-molecule products, including aqueous solubility …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 13, Issue 2, 2026 · pp. 15–26 Read article
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A Qualitative Comparative Study of Storytelling Through the Thematic Apperception Test Among Two Young Adults with a History of Substance Abuse in a Selected De-Addiction Centre in Delhi, India
Abstract: Introduction: Substance use can deeply affect an individual’s personality, relationships, and psychological functioning. The thematic apperception test (TAT), a projective psychological tool, helps uncover unconscious thoughts and emotions through storytelling. Objective: (i) To explore and compare the underlying personality dynamics of two young adult males with a history of substance use through TAT card analysis. Method: A qualitative comparative case study design was used. Ten standard TAT cards were presented …
Published in International Journal of Evidence Based Nursing And Practices · Vol. 4, Issue 1, 2026 · pp. 1–4 Read article
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Vibration Monitoring of Diesel Engine Using Bioethanol from Water Hyacinth as Fuel
Abstract: For the current study, water hyacinth plants (Eichhornia crassipes) are used as raw materials for fermentation with native yeast isolated from the water hyacinth plants. Acid hydrolysis followed by fermentation with the yeasts resulted in the yield of bioethanol. Bioethanol is mixed with diesel fuel in different ratios and used in IC engines. Vibrations have direct effects on engine components therefore; analysis of vibration resulting from combustion in IC engines …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 21–33 Read article
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Sulfated Zirconia Catalyzed Biodiesel Production from Acid Oil Containing High Free Fatty Acids
Abstract: Biodiesel fuel has shown great promise as an alternative to petro-diesel fuel. Biodiesel production is widely conducted through esterification and transesterification reaction, catalyzed by homogeneous or heterogeneous catalysts. In the present endeavour, sulphated zirconia has been prepared using microwave method and characterized by using XRD, FT-IR, BET surface area, SEM and acidity measurement. The utility of synthesized catalyst is demonstrated in catalytic biodiesel production from acid oil feed stock. The …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 2, 2017 · pp. 35–45 Read article
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Economic Importance of Laterite Deposit in Oke-Oyi Area, Ilorin, Nigeria
Abstract: Two soil samples A and B were taken from Oke-Oyi, Kwara state, North Central, Nigeria. The water content of the samples are 5.8% and 6.5 for sample A and B respectively. This shows the variability in water table in the area. The specific gravities values are 2.7 and 2.78 for samples A and B, this is an indicator of inorganic soil. Grain size analysis show the laterite to be sandy …
Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 33–37 Read article
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Performance Evaluation of PAPR Reduction in OFDM System
Abstract: OFDM is a bandwidth efficient multicarrier modulation which has gained a tremendous focus in recent years because of its high spectral efficiency; multipath delay spread tolerance, effectiveness against impulse noise and frequency diversity. However, some challenging issues still remain unsolved in the design of the OFDM systems. One of the major problems is high peak-to-average power ratio (PAPR) of transmitted OFDM signals. A large PAPR brings disadvantages like increased complexity …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 2, 2016 · pp. 21–36 Read article
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Standardization of Cement Mortar by Using GGBS for Plaster Work
Abstract: This study investigates the feasibility of using replacement of natural river sand with 100% crushed sand, and partial replacement of cement with optimum percentage of ground granulated blast furnace slag (GGBS) on site conditions with a proportioned water cement ratio for plaster work. The methodology, which it undergoes, is slump test, compressive strength, flexural strength, split tensile strength. Cubes (70.6 mm 70.6 mm), beams (160 mm 40 mm), …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 23–29 Read article
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Theoretical Investigation on Separation of High Purity Nitrogen, Oxygen and Argon from Atmospheric Air at Cryogenic Temperature
Abstract: Air is a mixture of various gases like nitrogen, oxygen, argon, hydrogen, helium, neon, etc. These gases can be separated at cryogenic temperature by liquefying each of their components at different temperature and pressure. This paper presents latest technology in bulk production of high purity of nitrogen, oxygen & argon from air, and analytical process design of a 1250 ton/day plant. The results are compared with the data of actual …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 3, 2014 · pp. 20–25 Read article