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29 articles for “DSC”
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Research ArticleOpen accessIn the abstractNew Schiff Bases with Pyridine Core: Spectral, Thermal and Optical CharacterizationsSie-Tiong Ha, Lay-Khoon Ong, Yip-Foo Win et al.Problem statement: Numerous studies have been conducted on the Schiff base's alkyl and alkyloxy possessing aromatic core. However, the thermo tropic properties of Schiff base's ester (or alkanoyloxy) with pyridine core was rare studied. Approach: To study spectral, thermal and optical behaviors of Schiff base ester possessing heterocyclic (pyridine) terminal core. A series of 4-[(pyridin-3-ylmethylene) amino] phenylalkanoates were prepared and … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 7,469 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization of Nigella Sativa L. Essential Oil-Loaded Solid Lipid NanoparticlesNagi A. ALHaj, Mariana N. Shamsudin, Norfarrah M. Alipiah et al.Problem statement: Seeds of Nigella Sativa L., commonly known as black seed, have been used in traditional medicine by many Asian, Middle Eastern and Far Eastern Countries to treat headache, coughs, abdominal pain, diarrhea, asthma, rheumatism and other diseases. The seeds of this plant are the most extensively studied, both phytochemically and pharmacologically. The aqueous and oil extracts of the … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 1 · 31 Mar 2010 · 17,884 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeating Effects on Structural and Electrical Properties of PolyetherimideNissaf Mzabi, Hichem Smaoui, Hajer Guermazi et al.Problem statement: Polyetherimide (PEI) has several uses such as electrical insulation. It can undergo different constraints like heat or high voltage which influence its performances as insulator. In this study, the effects of heating on structural and electrical properties of polyetherimide (Ultem 1000) are studied. Approach: PEI samples were heated at different temperatures below the glass transition temperature (175, 190 … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,556 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Manufacturing Stresses to Die Attach Film Performance In Quad Flatpack No-Lead Stacked Die PackagesM. F. Rosle, I. Abdullah, S. Abdullah et al.Problem statement: Repeated heat cure during assembly processes affected the Die Attach Film (DAF) material properties and the effectiveness touched area that leads to weak die bonding and delamination. Suitable die attached condition and DAF material selection had been evaluated to achieve required reliability performance in the manufacturing of the 3D Quad Flat No-Lead (QFN) stacked die package. Approach: During … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,054 accessesView PDFCite
Research ArticleOpen accessIn the abstractTamoxifen Drug Loading Solid Lipid Nanoparticles Prepared by Hot High Pressure Homogenization TechniquesNagi A. ALHaj, Rasedee Abdullah, Siddig Ibrahim, Ahmad BustamamAs drug delivery systems Nanoparticulate widely investigated because of many advantages such as smaller size, controlled drug release potential, targeting ability, enhancement of therapeutic efficacy and reduction of toxicity. So, Solid Lipid Nanoparticles have recently received considerable attention as alternative drug delivery carrier. In this study Solid Lipid Nanoparticles (SLNs) containing tamoxifen, nonsteroidal antiestrogens have been loaded and to be … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 3 · 30 Sep 2008 · 15,176 accessesView PDFCite
Research ArticleOpen accessIn the abstractPreparation and Properties of Copolyanhydrides Based on 2-Hexadecylsuccinic Acid and Sebacic AcidYousef Hamdan, Xiangmei Jiang, Kaixun Huang, Kaichao YuPoly(2-hexadecylsuccinic acid-sebacic acid) (P(HSA-SA)) copolymers have been prepared by melt polycondensation. The copolymers were characterized by FT-IR, 1HNMR, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). In vitro studies showed that all our prepared copolymers are degradable in phosphate buffer at 37°C. The release profiles of hydrophilic model drug, ciprofloxcin hydrochloride, from the copolymers, follow … …American Journal of Applied Sciences, Vol. 4, Issue 3 · 31 Mar 2007 · 7,430 accessesView PDFCite
Research ArticleOpen accessIn the abstractIdentification, Characterization and Quantification of Elastomeric/Plastomeric Waste for Sustainable Waste MinimizationKajal Yadav, Sangita, A. ChandraThe present study focuses on the importance of characterization of waste/post consumer polymers. In recent years sophisticated instrumental techniques played an important role in identification and characterization of polymers. Advances in computer techniques have been combined with analytical instruments to give analytical speed, resolution and minimal sample requirements unimagined a few years ago. The present study deals with the development … …American Journal of Environmental Sciences, Vol. 1, Issue 3 · 30 Sep 2005 · 7,058 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermining the Hazardous Medical Waste Generation Rates of Private Health Care Facilities-Case Study from Dhaka City of BangladeshMd. Yousuf Rumi, Rezaul KarimMany developing countries are lagging behind the developed countries to properly manage their hazardous healthcare waste. These waste pose a significant epidemiological risks to the general people. To estimate the epidemiological risks and to establish parameters of any waste management plan, quantitative estimation of healthcare waste generation is essential. Most researches on quantitative estimation of healthcare wastes to date, have … …American Journal of Environmental Sciences, Vol. 14, Issue 4 · 25 Apr 2018 · 8,388 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Biogas Plants by the Application of an Internal Rate of Return and Debt Service Coverage ApproachGiuseppe Bonazzi, Mattia IottiEnergy production using renewable energy has an effect on environmental sustainability and on public expenditure. In fact, this industry is heavily assisted by public support from the European Union and the Italian State. Developing and applying a method to evaluate the return on investment for companies operating in the field of renewable energy allows them to quantify their efficient use … …American Journal of Environmental Sciences, Vol. 11, Issue 1 · 6 Apr 2015 · 7,637 accessesView PDFCite