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1930 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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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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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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Feasibility Study on Hydropower Potential of Rataun Khola Micro-hydropower, Chyamranbesi VDC
Abstract: Abstract Rural VDCs which are still deprived from electricity can harvest their water source to meet their demand for domestic electrification, operation of grinding machine and saw mill. This can contribute to current scenario of energy crisis in Nepal. Micro-hydropower is not only a source of energy but also develops capacity of people through community participation and local governance. Chyamrangbesi VDC is one representative location of Nepal that is located …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 2, 2016 · pp. 28–31 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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Studies on Thick Aerofoils at Subsonic Speeds for a Civil Transport Wing
Abstract: Airfoils are the most important elements of an aircraft wing, having a chord length a camber and a thickness distribution. Traditionally, airfoils were being developed by empirical methods taking considerable support from wind tunnel testing. The ratio of lift to drag indicates the efficiency of an aerofoil. The purpose of this study is to adequately acquaint, as a first step, with a validated vertex lattice method code, the X-foil for …
Published in Recent Trends in Fluid Mechanics · Vol. 4, Issue 1, 2017 · pp. 28–37 Read article
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Use of Fuzzy Logic Method for the Optimisation of the Wear Parameters of Aluminum Alloy
Abstract: In this paper, use of fuzzy logic in the Taghuchi method for the optimisation of the wear parameters of aluminum alloy is explained. An experiment was conducted on three alloys viz. Al-25Zn-2.5Cu-5SiC, Al-25Zn-2.5Cu-10SiC, Al-25Zn-2.5Cu-15SiC. Experiments were carried out on standard pin-on-disc machine, at ambient temperature and under dry operating condition. The three process parameters like sliding velocity, load and sliding distance were optimized. In the Taguchi method, L27 orthogonal array …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 20–25 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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Development of Nanoparticles as Additive to Drilling Mud to be Used as Viscosity and Filtrate Loss Modifier
Abstract: Conventional drilling fluids are often unable to fulfill certain functional tasks that are very important in challenging environment. This inefficiency of drilling fluid in performing certain task is mainly because of lack in particular rheological or filtrate loss properties. Hence, the industry is looking for a new kind of additives which can be helpful in maintaining these properties in desired range even under extreme conditions. Rice husk is an abundantly …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 7, Issue 1, 2016 · pp. 22–30 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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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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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
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Some Aspects of the Vagaries in the Pattern of Meteorological Parameters in the State of Rajasthan in Association with the LULC Change
Abstract: Present work examined the role of the change in land use and land cover (LULC) in altering the rainfall and temperature pattern over the western part of the Rajasthan, India. For this purpose, the high-resolution gridded rainfall and surface temperature data sets prepared by IMD (India Meteorological Department) and Climatological Research Unit Time Series (CRU TS 3.21) have been utilized. An increase in surface temperature and decrease in rainfall for …
Published in Journal of Remote Sensing & GIS · Vol. 8, Issue 1, 2017 · pp. 53–65 Read article
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Prescribing Patterns of Analgesics in Surgical Departments in a Tertiary Care Hospital
Abstract: Analgesics are routinely employed in the management of pain in surgical departments. Drug utilization studies evaluate the present trends of drug usage, drug expenditures, appropriateness of prescriptions and adherence to evidence-based recommendations. The Objectives were to study the prescribing pattern, approval status, inclusion in World Health Organization (WHO) essential medicines list/National List of Essential Medicines (NLEM), cost and rationality of analgesics prescribed in surgical departments. Data were collected from records …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 4, Issue 1, 2014 · pp. 9–16 Read article
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Ethanolic Root Extract of Jatropha curcas L. Relieves Muscle Pain in Rats
Abstract: The roots of Jatropha curcas are used traditionally to treat pain. The present study evaluated the analgesic property of ethanolic extract of Jatropha curcas (JAT) in acute and chronic muscle pain models. Acute muscle hyperalgesia was induced by injecting 3% carrageenan into the gastrocnemius muscles of rats. Twelve hours after the injection, baseline muscle hyperalgesia was measured and the rats were then treated orally with 30, 100 and 300 mg/kg/day …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 4, Issue 2, 2014 · pp. 5–10 Read article
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Derivatization of Chiral Compounds with Chiral Reagents and Separation their Isomers by HPLC System
Abstract: Chiral compounds such as alanine amino acid and s-aminethylated L-cystiene derivatized with chiral reagents such as Marfey's reagents, 2,3,4,6-tetra-O-acetyl-b-D-glucopyranosylisothiocyanate (GITC) and 2,3,4,6-tetra-O-benzoyl-b-D-glucopyranosylisothiocyanate (BGIT), were achieved and separated by optimizing good methods using high performance liquid chromatography. Keywords: Derivatization, amino acid, chiral reagent, HPLCCite this Article Khlafulla Abdulrahim M, Maga Rajab A, Elmessmary Mohamad F. Derivatization of Chiral Compounds with Chiral Reagents and Separation their Isomers by HPLC System. Research & …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 6, Issue 2, 2016 · pp. 39–43 Read article
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“Progen†Herbo-Mineral Formulation Modulates Spermatogenesis in Experimentally Induced Infertile Rats
Abstract: The present study was designed to evaluate the fertility potential of Ayurvedic proprietary medicine ‘progen’—a herbo-mineral formulation—in experimental rats. A total of 24 male wistar rats were rendered infertile by administration of tetracycline (22.5 mg/kg p.o) and restraining stress (2 h a day) for 7 weeks. At the end of 7th week, six animals were sacrificed. Blood serum was analysed for triglyceride (TG), total cholesterol (T-CHO), follicle stimulating hormone (FSH), …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 6, Issue 3, 2016 · pp. 11–23 Read article