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1931 articles for “3-acetyl-7-bromo-2H-chromen-2-one” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Enhanced of Simple Three Party Key Exchange Protocol: Attacks and a Solution
Abstract: In secure communication password based three party encrypted key exchange (3PEKE) protocols have become significant due to the simplicity of maintaining human memorable passwords. In 2007, Lu and Cao proposed a simple and efficient three party password based authenticated key exchange (S-3PAKE) protocol. In 2008, Guo et al. found that S-3PAKE protocol has some loop holes and attacked by man in the middle attack and on-line dictionary attack. They proposed …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 1, Issue 1, 2013 · pp. 1–9 Read article
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Canopy Design and Fabrication for Reducing Noise Level Generated at Work Place without Affecting Equipment/Machine Performance
Abstract: Abstract Laws governing the safety and health of employed people exist in most countries of the world, the purpose being to create a suitable working environment and eliminate unsafe practices and processes. Work areas should be designed and laid out so that they are satisfactory both, from the environmental and safety points of view. In this connection, safety also implies that noise is kept at a level, which is not …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 3, 2016 · pp. 24–29 Read article
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Comparative Analysis of Vapour Compression Mini Ice Cream Plant by Using Different Size Capillary Tubes
Abstract: Abstract An experimental set up is made for comparative analysis of vapour compression mini ice cream plant by applying different size capillary tubes. The experiments were performed and results were recorded for comparing the best unit. The capillary tube was formed in coil shape having different inner diameters such as 0.79 and 1.12 mm. The pressure at suction and discharge of capillary were recorded to evaluate the cycle COP, power …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 3, 2016 · pp. 30–34 Read article
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Experimental Investigation of Combine Effect of Welding Speed, Tool Pin Profiles and Preheat Temperature on Mechanical Properties of Friction Stir Welded AA6061-T6 Joint based on Response Surface Methodology
Abstract: Two similar of dissimilar material can be joined by Friction stir welding (FSW) in solid state. Friction stir welded joint can be made by using non-consumable tool with rotary and transverse motion with intimate contact to material to be welded. These experimental investigations was carried out by taking different FSW parameters tool rotation speed, tool travel speed, tool pin profile and preheat temperature to find out its effect on mechanical …
Published in Trends in Machine design · Vol. 4, Issue 2, 2017 · pp. 15–24 Read article
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Study on the Wastewater Characteristics of the Kitchen Effluent
Abstract: The implementation of low-cost, simple mitigation measures are required for the timely control and sustainable management of pollution problems in developing countries. This study was designed to investigate the wastewater characteristics of the kitchen effluent, and to design a low-cost wastewater treatment plant for the kitchen based on the data obtained. For the wastewater quality analysis of the kitchen effluent, various composite samples were collected from the local region. The …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 1–7 Read article
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Arsenic Removal from Drinking Water of Risalpur Cantt
Abstract: Existing water purification management in Pakistan is insufficient as well as not up to the World Health Organization (WHO) set standards; and ultimately people are suffering. This problem has hit the world in general and Pakistan in particular. This study was designed to evaluate the concentration of arsenic in the Risalpur Cantonment, Pakistan. Various samples for a period of 6–8 months were analyzed using standard procedures. The concentration of pH, …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 8–13 Read article
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Treatment of Dye Waste using Phytoremediation
Abstract: Textile industries are rapidly developing nowadays. There are many dyeing industries situated at Tirupur. The wastewater from these industries were directly discharged into Noyyal river without any treatment, hence the aquatic eco-system was affected. This water is rich in heavy metals used for coloring purpose. This increases the toxicity of river water. By using the process of phytoremediation, the concentration of toxicity of heavy metals is reduced. Phytoremediation is done …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 21–25 Read article
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Adsorption of Lead Ions on Tea Waste Adsorbent
Abstract: Abstract In 2015 Indian Prime Minister Shri Narendra Modi focused more on clean and green India. On behalf of it an effective tea waste collected from Hotel Rudrapratap Tomar Purani Chhawani, Gwalior, MP, India. This hotel generated tea waste of 10000 kg per month. In Nov 2015 it generated tea waste of about 29000 kg which created tremendous problems, particularly by environmental pollution control board. Characterization of the adsorbents showed …
Published in Journal of Water Pollution & Purification Research · Vol. 3, Issue 1, 2016 · pp. 1–5 Read article
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Logistics Support for Disaster Management
Abstract: Abstract Pakistan is located in a volatile disaster prone region. Its diverse landscape is susceptible to wide-range of hazards from droughts to floods and earthquakes to cyclones. Recently, Pakistan has suffered almost every year from floods. Disaster management had remained limited to the provision of relief rather than long-term management of risk. 2005 earthquake was one of the worst disasters of Pakistan. It exposed inefficiency of the government machinery in …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 2, 2016 · pp. 32–44 Read article
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Enhancement of the Bandwidth of Micro-Strip Patch Antenna Arrays using Multi Slot Techniques for WLAN Applications
Abstract: Micro-strip antenna (MPA) arrays are explored to achieve higher gain and improved bandwidth (BW), which is preferred for WLAN applications. In this paper, multi slot 2x2 single port micro strip patch antenna array are designed and simulated. The target frequency range is at S-band with frequencies that range from 2 to 4 GHz. This paper investigates 2x2 single port antenna arrays within multi slot techniques for improved BW. It proposes …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 1, Issue 3, 2014 · pp. 12–19 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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Experimental Investigation of PTFE Composite Material with Different Filler Materials
Abstract: Experimental investigation of PTFE (Polytetrafluroethylene) composites with different filler materials such as glass fiber, molybdenum disulphide, graphite carried is out in this study. This study exhibits tribological properties such as wear and coefficient of friction of PTEF composite material. Pin on disc tribometer is used to conduct the wear on PTFF polymer composite. Test is conducted on 10 mm diameter PTFE pin against EN31 counter face. Wear and friction experiment …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 34–42 Read article
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Synthesis and Characterization of Composites of Beryllia and Lithium-titanate Produced by Solid State Route
Abstract: Beryllium oxide (BeO) is proposed to be used as a constituent for lithium titanate (Li2TiO3) based composite material for neutron multiplication and breeding in International Thermonuclear Experimental Reactor (ITER) for its high thermal conductivity, low neutron absorption cross-section and high neutron reflection cross section. In the present investigation, we report the synthesis of single phase BeO-Li2TiO3 composites with BeO to Li2TiO3 (produced through solid state route) in volume ratios of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 5, Issue 1, 2014 · pp. 17–27 Read article
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Electrooxidation Study of Acetic Acid at Low Temperature in Membrane Less Microfluidic Fuel Cell for Portable Power Application
Abstract: The global energy crisis due to dependence on fossil fuel and its limited reserves followed by environmental pollution are the key concerns to the research communities. However, recently developed micro-fluidic fuel cells using hydrogen-rich fuels are most likely to replace the batteries, due to their compactness, high efficiency and simplicity in operation. In this context, the PtxSn/C (where, x=1, 3, 5) electrode-catalysts were prepared and the electro-oxidation of acetic acid …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 58–66 Read article
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Utilization of Waste Polyethylene Terephthalate with Bitumen for Road Construction
Abstract: Polyethylene terephthalate (PET) is commonly used for soft drink water bottles and other applications. However, disposal of this waste PET in large quantities causes environmental problem, as it is considered non-biodegradable material. This study investigated utilization of waste PET mixed with 60/70 penetration grade of bitumen to be as a raw material for road construction. The effect of temperature (140, 150, 160°C), composition of PET (4, 8, 12%) and mixing …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 2, 2017 · pp. 30–39 Read article
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Formulation Development and Evaluation of Sublingual Tablets of Enalapril Maleate Using Co-processed Superdisintegrants
Abstract: Enalapril Maleate is anti-hypertensive drug and its oral bioavailability is 40%. Sublingual tablets of Enalapril Maleate were prepared to improve its bioavailability, to avoid pre-systemic metabolism and hepatic first pass elimination. Tablets were prepared by wet granulation technique using two different superdisintegrants KYRON-T-314 and INDION-414 in the different ratio (1:1, 1:2 and 2:1) by co-processing and physical mixing. FTIR (Fourier transform infrared spectroscopy) and DSC (differential scanning calorimetry) spectroscopic studies …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 5, Issue 3, 2014 · pp. 24–39 Read article
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Two New, Useful and Facile Stability-Indicating UV Spectrophotometric Methods for the Determination of Rosiglitazone in Pharmaceuticals
Abstract: Rosiglitazone (ROS) is an antidiabetic drug belonging to the thiozolidine class. Two simple, rapid, sensitive, accurate and reproducible UV-spectrophotometric methods were developed and subsequently validated for the determination of ROS in bulk and tablet form. The methods are based on the measurement of the absorbance of the drug solution either in 0.1 M NaOH (NaOH method) or in 0.1 M HCl (HCl method) at 316 nm in both instances. The …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 8, Issue 2, 2017 · pp. 8–19 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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A Contribution to the Study of Geographical Displacement of Crime using GIS–Kings Cross, London
Abstract: Displacement of crime is the specter that haunts crime prevention studies, in that, the crime problem does not go away but shifts from one location to another. The fact that crime is not reduced in an area but rather moves around means that trying to change the situation and circumstances surrounding the targeted area may not fully reduce crime. Research that has been previously carried out into the study of …
Published in Journal of Remote Sensing & GIS · Vol. 4, Issue 3, 2013 · pp. 12–25 Read article
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The Use of Satellite Imagery in Estimating Aboveground and Belowground Biomass of Aquatic Vegetation, The Food Source of Waterfowl
Abstract: 800x600 In this research we studied the possibilities to estimate the biomass of aquatic vegetation in a shallow lake using IKONOS image. IKONOS-2 image, with one infrared and three visible bands, was obtained on the 19th of August 2005. The study was carried out in the Lauwersmeer (The Netherlands) that Bewick’s swans use as an autumn staging site to forage on the belowground biomass of fennel pondweed. This research gave …
Published in Journal of Remote Sensing & GIS · Vol. 6, Issue 2, 2015 · pp. 33–40 Read article