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1360 articles for “lay-up”
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Concrete Oil and Gas Platforms in Offshore Marine Environment: A Review
Abstract: Abstract Offshore concrete structures have been successfully in use since 1973. Since then, 47 major concrete offshore structures were built worldwide. They were mostly used in the petroleum industry as drilling, extraction or storage units for crude oil or natural gas. Generally, offshore concrete structures are classified into fixed and floating structures. Fixed structures are mostly built as concrete gravity based structures where the loads are directly transferred through concrete …
Published in Journal of Offshore Structure and Technology · Vol. 4, Issue 1, 2017 · pp. 33–42 Read article
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Controversial Issues of Security in Wireless Sensor Network
Abstract: Wireless Sensor Network (WSN) is an emerging technology which shows a very good number of valid futuristic applications both for common people and military. As wireless sensor networks continue to grow, so does the need for effective security mechanisms. Wireless sensor networks are quickly gaining popularity due to the fact that they are potentially low cost solutions to a variety of real-world challenges. The basic idea of a sensor network …
Published in Recent Trends in Sensor Research & Technology · Vol. 1, Issue 1, 2014 · pp. 1–7 Read article
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A Study on Increasing Sensitivity of Microcantilever Biosensor of Different Geometries
Abstract: In this paper, the authors present the activities within their research group on increasing the sensitivity of microcantilever of SU-8/2050. They believe that SU-8 is an interesting polymer for fabrication of cantilevers for biosensing due to its simple processing and low Young’s modulus. They show that the SU-8 cantilever surface can be functionalized directly with receptor molecules for analyte detection, thereby avoiding gold layer. To increase the overall sensitivity of …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 1, 2015 · pp. 1–4 Read article
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Design and Simulation of Piezoelectric Energy Harvester
Abstract: SU-8 has the high aspect ratio, good pattern ability property, mechanical and chemical stability. The energy harvester structure is made of SU-8 as substrate and zinc oxide as the piezoelectric layer. The optimal dimension is found out to be 500 µm×20 µm×3 µm. The simulation shows that for input 10 N/m2 at the frequency of resonance of the structure, the energy harvester generates 13.1 mV. Keywords: Zinc Oxide (ZnO), cantilever …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 1, 2015 · pp. 17–20 Read article
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Implementation and Analysis of Internet Protocol TV Content Distribution Network Traffic Modeling in NS2
Abstract: Traffic analysis and modeling is an important approach to study network applications. In the past decade, numerous types of Internet and multimedia application traffic have been extensively studied and the result of this research shows that such traffic has the feature of self-similarity. Contrasted and these customary applications, IPTV has an alternate construction modeling and client practices. Thus, the attributes of IPTV movement vary from those of conventional applications and, …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 3, 2015 · pp. 6–12 Read article
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Numerical Investigations of Fluid Flow and Heat Transfer in a Ribbed Heated Duct with Variable Aspect Ratios
Abstract: The present investigation has been carried out to investigate the steady-state forced convection heat transfer and pressure drop characteristics of turbulent flow in an air cooled horizontal duct. The aspect ratio (W/H, where W is width and H is the height of the duct) is varied in the range of 1 to 4. Square ribs are fixed on the inner side of the bottom wall which is heated with constant …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 27–37 Read article
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Strengthening of Subgrade and Sub-Base of Bituminous Pavement Using RBI Grade 81
Abstract: Abstract The objective of the work is to determine the effectiveness of RBI Grade 81 for improvement in engineering properties of medium plasticity clayey soil. RBI Grade 81 was treated with collected soil sample at different dosages. Various samples have been made by mixing soil with 0, 2, 4, 6 and 8% RBI Grade 81; method of soil replacement is opted for the preparation of samples. After studying the properties …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 3, 2016 · pp. 27–32 Read article
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Taguchi based Modeling and Optimization of Tool Wear Rate in Die-Sink EDM
Abstract: With the increasing demand for new, hard, high strength, and temperature-resistant materials in various engineering applications, especially in the field of mold manufacturing, aeronautic, automobile and die manufacturing industries, the development and application of electro-discharge machining (EDM) has become increasingly important to machine such difficult to machine hard materials. In this paper, the machining of EN-31 Die steel using EDM with a copper electrode by using Taguchi’s experimental design and …
Published in Journal of Production Research & Management · Vol. 2, Issue 1, 2012 · pp. 30–35 Read article
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Re-balancing of a Mixed Model, Two-sided, Paced, Manual Assembly Line using Modified Highest Candidate Algorithm
Abstract: Manual assembly line technology has made a significant contribution to the development of manufacturing industry in the twentieth century. A conventional assembly line consists of one sided single model and a straight line layout. However, a mixed model two sided paced assembly line is considered for re-balancing in this paper. To balance the load of an assembly line, a modified highest candidate algorithm is suggested. The objectives of this case …
Published in Journal of Production Research & Management · Vol. 3, Issue 3, 2013 · pp. 34–41 Read article
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Effect of Burnishing on the Surface Quality and Hardness of ABS Plastic Samples Fabricated with Fused Deposition Modeling
Abstract: Quality of surface is one of the important factors to decide the performance of a manufactured product. Fused deposition modeling has been used to fabricate the stepped cylindrical samples for surface roughness evaluation. The axis of the stepped cylinder was oriented as horizontal to minimize the time of fabrication. Evidently the surface quality was not satisfactory due to the staircase effect. Using burnishing process, an attempt was made to improve …
Published in Journal of Production Research & Management · Vol. 5, Issue 1, 2015 · pp. 8–13 Read article
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Calcareous Soil as a Promising Adsorbent to Remove Fluoride from Aqueous Solution: Equilibrium, Kinetic and Thermodynamic Study
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 In this work, the feasibility of employing calcareous soil to remove fluoride ions from its aqueous solutions was investigated under batch mode. The influence of solution pH, sorbent dose, initial fluoride concentration, contact time, stirring rate and temperature on the removal process were investigated. The equilibrium adsorption data were analyzed using Langmuir, Freundlich and Temkin isotherm models. The kinetics of fluoride …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 3, Issue 3, 2012 · pp. 1–21 Read article
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A Developed and Validated Densitometric HPTLC method for Quantitative Analysis of Cefdinir
Abstract: A sensitive and accurate high performance thin layer chromatographic method has been developed and validated. Chromatographic separation was performed on silica gel F254 HPTLC plates, prewashed with methanol using methanol: toluene (9.5: 0.5 v/v), as solvent system. The plates were scanned densitometrically, with a deuterium lamp at 286 nm. The method was validated in accordance with the requirements of the ICH guidelines. The response to cefdinir concentration was linear in …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 1, Issue 1, 2010 · pp. 1–9 Read article
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Synthesis, Crosslinking and Evaluation of Graft Polymer for Biomedical Use
Abstract: The objective of this research was focused on grafting of acrylic acid (AA) with hydroxypropyl methylcellulose (HPMC) to obtain copolymers of hydrogels with improved properties for ease of administration and reducing the dose frequency, improved patient compliance and comfort of sustained release medication. Water-absorbing polymers for hydrogels, the swellable polymeric materials have been widely investigated as the carrier for drug delivery system. These are the advanced polymer systems that hold …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 3, Issue 1, 2012 · pp. 37–45 Read article
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A Process for Standardization of Ayurvedic Polyherbal Formulation (Churna) for Antioxidant Activity
Abstract: Ayurvedic medicinal preparation as per Ayurveda by using herbal antioxidant ingredients; the name of prepared formulation in Ayurveda is called churna, That churna having antioxidant property known to be effective in all types of allied disorders also, related to oxidation in cellular and molecular level in a living system has been standardized by following modern scientific quality control procedures both for the raw material and finished product. The obtained values …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 5, Issue 2, 2014 · pp. 1–7 Read article
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HPTLC: An Important Tool for Estimation of Phytoconstituents
Abstract: AbstractHPTLC (High-performance thin layer chromatography) technique is widely employed in pharmaceutical industry for the process development, identification and estimation of adulterants in herbal formulations and helps in estimation and identification of pesticide content, mycotoxins and in quality control of nutraceuticals. For the herbal extracts and especially for the botanical drugs, the issue of stability is of exceptional importance. Standardization is required for the development of an accurate biological activity and …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 1, 2016 · pp. 28–33 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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Factors Affecting Implementation of Pharmaceutical Care at Jimma University Specialized Hospital, South West Ethiopia
Abstract: Pharmaceutical care is the responsible provision of medicine therapy for the purpose of a definite outcome that improves a patient’s quality of life. It is a necessary element of healthcare and the concept implies the active participation of the patient in medicine therapy decisions and, the cooperation of healthcare providers across disciplines. This study was conducted to explore factors that affect the implementation of pharmaceutical care at Jimma University Specialized …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 3, 2016 · pp. 30–40 Read article
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Morphological, Optical and Structural Studies of Deposited ZnO Films by SILAR Method for Solar Energy Applications
Abstract: The deposited ZnO films were grown on glass substrates using the Successive Ionic Layer Adsorption and Reaction. The morphology of the deposited ZnO is that of flower-like bud.The optical properties were characterized using UV/VIS spectroscopy, the optical band gap decreases with increasing reaction time, and these films have band gap values of 3.19eV, 3.22eV, 3.24eV and 3.25eV. The crystal structure of the films were also characterized using the X-Ray Diffraction …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 4, Issue 3, 2013 · pp. 7–12 Read article
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Effect of Image Band Number and Band Multicollinearity on Mapping Accuracy of Tree Diversity and Evenness
Abstract: 800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Satellite imageries are increasingly being used in the studies of plant diversity due to cost effective wider spatial coverage. Multispectral or hyperspectral imageries consist of different spectral bands where some bands might be multicollineared among them and deemed redundant to use in the classification/analysis. This study investigates how the accuracies of maps of tree diversity and evenness of an area …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 2, 2013 · pp. 14–22 Read article
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A GIS Approach to Identify Potential Zones of Polymetallic Nodules in The Indian Ocean Region
Abstract: Mankind’s quest for metals has been growing steadily and has resulted in expanding his search beyond land, that is, in the oceans. Being in the dissolved form, metals are also formed in the ocean in the form of polymetallic nodules. They are submarine rock concretions formed of concentric layers of Iron and Manganese hydroxide around a nucleus. Nodules contain manganese and iron, nickel, copper, cobalt, lead, molybdenum, cadmium, vanadium, titanium, …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 3, 2013 · pp. 1–11 Read article