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Research ArticleOpen accessIn the abstractPM Emissions in a Urban ContextEnrico Brizio, Giuseppe Genon, Stefania BorsarelliWithin a urban environment, three different sources of particulate matter should be considered: heating plants using different combustibles (natural gas, gas oil, fuel oil, wood), industrial plants placed in the surrounding area, traffic. While the effects of the first two origins can be easily calculated on the basis of existing emission factors, the PM emissions from traffic are of two … …American Journal of Environmental Sciences, Vol. 3, Issue 3 · 30 Sep 2007 · 6,876 accessesView PDFCite
Research ArticleOpen accessIn the abstractTowards Two-tier Universalism? A Discussion of the Welfare PrincipleCatharina Juul KristensenIn this study the common political discourse on the ‘challenge of immigration’ to the Danish welfare state is turned on its head. Instead of focusing on the costs and difficulties of immigration, the focus is first upon the challenge that recent policies on immigration and integration constitute to the principle of universalism; and second upon the ability of the principle … …Journal of Social Sciences, Vol. 3, Issue 2 · 30 Jun 2007 · 7,520 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnhancement of Search Results Using Dynamic Document Seed Reranking AlgorithmAngelina Geetha, A. KannanWe proposed an algorithm to improve the precision of top retrieved documents by re-ordering the retrieved documents in the initial retrieval. To re-order the documents, we first automatically extract key terms and key phrases from top N retrieved documents and generate a document index for each document. Using the standard similarity metrics, a document similarity matrix is generated for these … …Journal of Computer Science, Vol. 3, Issue 6 · 30 Jun 2007 · 6,747 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 abstractChanges in Erucic Acid Concentration of Rape Seeds in Advanced GenerationsSelim Aytaç, Şahin Gizlenci, Mustafa Acar, Ali ÜstünThis study was carried out to determine the extend of changes in erucic acid concentration of rapeseeds which were grown in Carsamba and Bafra Plains of Central Blacksea Region. In addition to field experiments, the same experiment was conducted in the greenhouse to avoid polen transfer from other sources. The first material used was 00 type rapeseed cultivars. In order … …OnLine Journal of Biological Sciences, Vol. 6, Issue 2 · 31 Dec 2006 · 6,627 accessesView PDFCite
Research ArticleOpen accessIn the abstractProbabilistic Artificial Neural Network For Recognizing the Arabic Hand Written CharactersKhalaf khatatneh, Ibrahiem M.M. El Emary, Basem Al-RifaiThe objective of this study was to present a new technique assists in developing a recognition system for handling the Arabic Hand Written text. The proposed system is called Arabic Hand Written Optical Character Recognition (AHOCR). AHOCR was concerned with recognition of hand written Alphanumeric Arabic characters. In the present work, extracted characters are represented by using geometric moment invariant … …Journal of Computer Science, Vol. 2, Issue 12 · 31 Dec 2006 · 6,915 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Computer Use on Human Salivary Oxidant/Antioxidant Statusİmge B. Ergüder, İlker DurakComputers are widely used in recent years but their effects on human health completely are known. The aim of this study was to investigate possible effects of computer use on human salivary oxidant / antioxidant system. Ten subjects were included in the study. Three saliva samples were taken from the subjects. First was obtained before computer use, second and third … …OnLine Journal of Biological Sciences, Vol. 6, Issue 1 · 30 Jun 2006 · 6,389 accessesView PDFCite
Research ArticleOpen accessIn the abstractObject Detection using Circular Hough TransformMohamed Rizon, Haniza Yazid, Puteh Saad et al.In this study we propose a new system to detect the object from an input image. The proposed system first uses the separability filter proposed by Fukui and Yamaguchi (Trans. IEICE Japan J80-D-II. 8, 2170-2177, 1997) to obtain the best object candidates and next, the system uses the Circular Hough Transform (CHT) to detect the presence of circular shape. The … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 8,223 accessesView PDFCite
Research ArticleOpen accessIn the abstractWeb-based Digital Video Sequencing SystemKhalid A. KaabnehIn order to access and retrieve Internet shared videos, there is a clear need for structuring to decrease search and loading time. Video segmentation is the process of dividing a video clip into segments of similar characteristics. Based on our segmentation research, this study proposes a complete Digital Video Sequencing and retrieval tool, aimed for the Internet users. This ongoing … …Journal of Computer Science, Vol. 1, Issue 2 · 30 Jun 2005 · 6,540 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of the Application of Sewage Sludge and Presence of Pesticides on the Development of the Microbial Population of the Soil and on the Transformation of Organic Carbon and Nutrient ElementsM.E. Sánchez, I. B. Estrada, O. Martínez et al.The laboratory trial consisted in incubating samples of soil and soil treated with sewage sludge, with the application of organophosphate pesticides with different active ingredients under controlled conditions of temperature and moisture. On the basis of a previous study of the influence of the application of sludge on the degradation of pesticides in the soil, a kinetic study is included … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 6,866 accessesView PDFCite