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1488 articles for “loss”
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Exergy Analysis of Evacuated Tube Two Fluid Solar Water Heating System
Abstract: The topic of the research of solar energy has become a matter of great concern due to energy crisis all over the world. Solar energy is the very promising source of energy i.e. easily available. In this study, exergy analysis of evacuated tube two fluid solar water heating system is carried out along with vertical shell and tube heat exchanger. In this study, energy quality and quantity of the system …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 2, 2016 · pp. 6–11 Read article
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Optimization of Venturimeter Geometry for Minimum Pressure Drop using CFD Analysis
Abstract: A venturimeter is one of the accurate flow measurement devices used to measure volumetric flow rate based on differential pressure. Pressure recovery is a problem when flow measurement is done by venturimeter. So, it is necessary to select its geometrical parameters in such a way that minimum pressure loss occurs. In this paper, optimization of geometrical parameters of venturimeter for minimum pressure drop has been done using CFD analysis. For …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 2, 2016 · pp. 31–35 Read article
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Fluid Flow Analysis and Flow Path Optimization of a Centrifugal Fuel Injector for a Turboshaft Aero Engine
Abstract: The present work of optimization is made for specific dimensions of a rotary fuel injector used in two of the high-performance defense helicopter’s gas turbine engines, presently. The need for doing this study is to meet the thermal design requirements of limiting the combustion chamber temperatures to an optimum designed value which heavily depends on finely divided homogeneous droplet sizes, the SMD (Sauter Mean Diameter) of the fuel that is …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 1, 2017 · pp. 22–27 Read article
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Textile Antenna for C-Band Satellite Communication Application
Abstract: Now days the international activity increasing in body area networks (BANs), wireless personal are Networks (WPANs), and medical sensor networks. This has given rise interest in wearable antennas that are designed for operation on the human body, or the bodies of animals. In this paper a compact and flexible textile antenna works at 3.64–4.79 GHz for body centric wireless and C-band satellite Communication has been presented. Blue jeans fabric used …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 2, 2015 · pp. 20–25 Read article
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Synthesis, Characterization and AC Conduction of Polyaniline Fibers
Abstract: The present paper aims to study the preparation of polyaniline fibers and characterize them. Polyaniline fibers were synthesized by chemical oxidation polymerization where ammonium persulfate [(NH4)2S2O8] was used as oxidant to oxidize aniline to polyaniline. The polyaniline fiber was characterized by XRD, FTIR, TEM and UV-Visible spectroscopy. The characteristic peaks in FTIR and UV-Visible spectra confirmed the expected structure of polymer as reported in the literature. Further, Transmission electron microscopy …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 16, Issue 3, 2014 · pp. 25–30 Read article
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Slurry Erosion Behaviour of D-Gun Sprayed Cr3C2-25NiCr and WC-12Co Coatings on CA6NM Turbine Steel Material
Abstract: In this research work, Erosive wear behaviour of hydraulic turbine material, i.e., CA6NM is investigated. The samples of alloy were coated by different powders Cr3C2-25NiCr and WC-12Co with detonation spray gun technique. Erosion tests have been conducted on self-made erosion test rig with different parameters. L9 Taguchi technique has been used for design of experiment by taking four factors viz. impact velocity, impact angle, slurry concentration and particle size. The …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 8–17 Read article
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Pellet Drum Microstrip Patch Antenna for UMTS Application
Abstract: This paper consists of microstrip patch antenna designed with coaxial feed technique. The antenna is mainly anticipated to be used for UMTS wireless applications. The results illustrate that wide bandwidth of 33.26% is obtained covering the frequency range from 2.03 to 2.84 GHz. Next, the characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3d. Finally, a broad analysis of the return loss, radiation pattern and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 1, 2017 · pp. 24–28 Read article
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Response Spectrum Analysis of RC Buildings Constructed on Plain and Sloping Ground with Different Configuration of Shear Walls
Abstract: Abstract Buildings constructed on slopes are different from those in plains. They may be irregular and unsymmetrical in horizontal and vertical planes, and torsionally coupled. Hence, they are susceptible to severe damage when affected by earthquake ground motion. We can’t avoid the future earthquakes but the preparedness and safe building construction practices for earthquakes can certainly reduces the extent of damage and loss of both property and life. Shear wall …
Published in Journal of Structural Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 65–73 Read article
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Substituted Thiosemicarbazides as Corrosion Inhibitors for N80 Steel in Hydrochloric Acid
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 N-isonicotinoyl-N′-aryl thiosemicarbazides have been synthesized and employed as corrosion inhibitors for N-80 steel – 15% hydrochloric acid system at 25 ï‚°C. On the basis of their influence on anodic and cathodic polarization behavior, these compounds could be classified as ambiodic inhibitors. Weight loss and electrochemical data leading to their inhibition efficiencies (IEs) suggest that these inhibitors followed adsorption mechanism. Among the …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 2, 2012 · pp. 25–35 Read article
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Physico-Chemical, Phyto-Chemical and HPTLC Analysis of Root of Melia azedarach Linn
Abstract: Mahanimba, botanically known as Melia azedarach L. is an important medicinal plant of Ayurveda. Different parts of Mahanimba are widely used to treat many ailments. Its root is used in Gridhrasi (sciatica) and also used as an ingredient of many Ayurvedic formulations. Present study was carried out to evaluate physicochemical, phyto-chemical and HPTLC analysis of root of M. azedarach Linn. following standard guidelines. Results of physicochemical study revealed that, root …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 2, 2016 · pp. 1–5 Read article
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Pharmacognostical and Pharmaceutical Analysis of Amavatari Rasa- A Herbo-mineral Compound
Abstract: Amavatari Rasa is a herbo-mineral formulation, composed of processed mercury, sulphar, Terminalia chebula Retz, Terminalia bellerica Roxb., Phyllanthus embilica (Embelica officinalis Gaertn), Plambagozeylenica Linn., Commiphora wightii (Arn) Bhand and Ricinuscommunis Linn. This formulation is routinely practiced in cases of Rheumatoid Arthritis, but preliminary physicochemical and pharmacognostical profiles are not available. Considering this, an attempt has been made to develop this profile. Pharmacognostical study of raw drugs was carried out. Organoleptic …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 2, 2016 · pp. 6–10 Read article
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Temperature Variation and Energy Performance with or without PCM due to Introduction of Heat Loads
Abstract: Food transport and storage at low temperatures has always been an important matter worldwide and is becoming even more important due to dietary needs and population growth. The issue of improving food storage applies to food transportation in refrigerated vans and food storage in domestic refrigerators and freezers. In this paper, heat loads are introduced into a freezer and vegetable zone through short door openings (five door openings lasting 1 …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 2, 2012 · pp. 19–38 Read article
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Effect of Compression Ratio and Fuel Injection Pressure on the Performance and Emissions of a CI Engine with Methyl Esters of Pongamia Oil
Abstract: Diesel fueled compression ignition engines are invariably used in light, medium and heavy duty applications. Heavy dependence on petroleum derived diesel fuel has led to the twin problems of loss of exchequer and environmental pollution. The intensive research revealed that transesterified vegetable oils could be the best substitute for existing diesel engines. The present paper deals with experimental investigations on a typical compression ignition engine when it was run at …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 3, 2015 · pp. 8–17 Read article
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Synthesis of CaCl2.6H2O by Using Phase Diagram and Verification of its Ability to Remain as a Hexahydrate at Various Thermal Effects
Abstract: Antarcticite (CaCl2.6H2O) is one of the salt hydrate forms of Calcium chloride. It has a specific application in energy storage systems at ambient temperature, since its melting point is around 29ºC. During the conventional synthesis of Antarcticite, a risk of other hydrates crystallization is there. An experimental procedure is designed through binary melting phase diagram for selective crystallization of Antarcticite from aqueous CaCl2 solution. The melting and recrystallization behavior of …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 6, Issue 3, 2015 · pp. 60–71 Read article
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Designing a Geo-spatial framework for Rapid Damage Assessment: A Case Study
Abstract: With increasing number of natural hazards and disasters followed by economic losses, terms like disaster preparedness, response, relief and rehabilitation has become common to the decision makers as well as ordinary people. Since there is a great influence of occurrence of hazards and disaster upon a country’s economic growth, all government bodies are seek to find a way to reduce the adverse effect of a disaster. Rapid Damage Assessment (RDA) …
Published in Journal of Remote Sensing & GIS · Vol. 3, Issue 2, 2012 · pp. 24–33 Read article
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Landslide Susceptibility Mapping: A Case Study of Cauvery Basin and East Flowing Rivers South of Cauvery Basin, India
Abstract: Landslide is a geological phenomenon which is directly and indirectly creates effects on life.It causes human property damages, roads breaking, building collapsing, other constructiondevastation and also huge loss of life. To manage such kind of hazard there is a need toidentify landslide prone zones. This paper addressed a GIS based spatial data analysis forlandslide susceptibility mapping in Cauvery and East Flowing Rivers South of Cauvery Basin,India. Seven important causative factors …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 1, 2015 · pp. 24–36 Read article
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Evaluation of Chale Neem (Azadirachta Indica) As an Immunomodulator in Elderly Persons: A Single Blind Randomized Placebo Controlled Study
Abstract: Elderly subjects have loss of functionality and dysregulation of immune system. Immunosenescence is associated with deleterious changes, primarily in adaptive immunity and particularly in T cell subset. It includes reduced production of T cells in bone marrow and thymus and diminished function of mature lymphoid tissues. As a result, elderly individuals do not respond to immune challenge and are at increased risk of infection and related complications. Chale Neem (Azadirachta …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 6, Issue 3, 2016 · pp. 48–52 Read article
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A Duplex PCR for Simultaneous Detection of Brucella and Bovine Herpesvirus – Genome in Clinical Samples
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 A disease-free germplasm is a prerequisite for getting healthy progeny. Many diseases are transmitted through semen either by natural service or artificial insemination causing reproduction failure and economic losses. The intermittent excretion of Bovine Herpesvirus-1 (BoHV-1) and Brucella in semen and their transmission through artificial insemination has been recorded. PCR has become an invaluable tool because of speed and simplicity with …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 1, Issue 2, 2011 · pp. 1–7 Read article
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Electronic Warfare Suite for Combat Vehicle
Abstract: Normal 0 false false false EN-US X-NONE X-NONE In present war scenario, any combat vehicle is vulnerable to missile attack. In these situations it becomes essential for a combat vehicle to identify these threats before they incur loss to these vehicles. Radar Warning Receiver (RWR), Laser Warning Receiver (LWR) and Missile Approach Warning Receiver (MAWS) are used to search and track the missile. The threat from the Radar Guided Missile …
Published in Journal of Aerospace Engineering & Technology · Vol. 1, Issue 2, 2011 · pp. 19–27 Read article
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Scramjet Combustor Development: A Review
Abstract: In the development of scramjet engine, the combustor presents the most formidable problems. Combustor is the critical section due to practical constraints of suitable material, mixing and flame holding in the short span of length. The complex phenomenon of supersonic combustion involves turbulent mixing, shock interaction and heat release in supersonic flow. The flow field within the combustor of a scramjet engine is very complex and poses challenge in design …
Published in Journal of Aerospace Engineering & Technology · Vol. 2, Issue 3, 2012 · pp. 28–41 Read article