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Research ArticleOpen accessIn the abstractPurification of A Recombinant Thrombin-like Enzyme, Gloshedobin by Egg Yolk Antibody-Coupled AdsorbentsQing Yang, Xuyu Lei, Jianqiang Xu, Lijia AnThe gloshedobin, a snake venom thrombin-like enzyme was biosynthesized in the soluble form and purified by egg yolk antibody-coupled adsorbents from E. coli. As His-tag is not favored from the point of view of high-level and soluble expression, we herein constructed a recombinant gloshedobin without His-tag and developed a novel egg yolk antibody (IgY)-immunoaffinity chromatography for its purification in a … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,694 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Adaptive Modulation Scaling Scheme for Quality of Services Ensurance in Wireless Sensor NetwoksYong Yuan, Zongkai Yang, Jianhua HeEnergy consumption has been a key concern of data gathering in wireless sensor networks. Previous research works show that modulation scaling is an efficient technique to reduce energy consumption. However, such technique will also impact on both packet delivery latency and packet loss, therefore, may result in adverse effects on the qualities of applications. In this study, the problem of … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 6,786 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdaptive Data Transmission in Multimedia NetworksManimegalai Parry, N. GangatharanThis study suggests a method where the packet size of each source is adjusted according to the network bandwidth. A controller is used to trace the data transmission rate at the router. An algorithm is developed and coded in Tool Command Language. Simulation is performed on NS-2 using 4 different test cases and the results show that the proposed algorithm … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,255 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpectrofluorimetric, Atomic Absorption Spectrometric and Spectrophotometric Determination of Some FluoroquinolonesHesham SalemSimple, accurate, sensitive and selective spectrofluorimetric, atomic absorption spectrometric and spectrophotometric methods are described for the quantitative determination of ten fluoroquinolones (amifloxacin, ciprofloxacin hydrochloride, difloxacin hydrochloride, enoxacin, enrofloxacin, lomefloxacin hydrochloride, levofloxacin, norfloxacin, ofloxacin and pefloxacin mesylate). The first method was a spectrofluorimetric method in which samples of the studied drugs in 0.1 N H2SO4 showed native fluorescence at 450 nm … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,320 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigating the Influence of Different Process Parameters on Shrinkage of Injection-Molded PartsA. R. Jafarian, M. ShakeriDifferent models have been proposed to investigate the effects of various process parameters on shrinkage of plastic parts, which in most cases the effect of each parameter is obtained by changing one factor at a time. In this research, a simple flat model has been used and a simulation code has been developed. Then, through this simulation code, the effects … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,261 accessesView PDFCite
Research ArticleOpen accessIn the abstractDistribution Network Planning and Design Using Branch and Bound MethodsJalal AbdallahThis study presents implementation of the bound and branch methods as an optimization mathematical device for distribution network planning. A development technology concentrates on minimizing the total costs and provides extended opportunities for improvement of network operation, from the initial planning stage. The study illustrate the mathematical and the algorithm of the branch and bound method with an example to … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,047 accessesView PDFCite
Research ArticleOpen accessIn the abstractFriction Forces in O-ring SealingAl-Ghathian, Faisal M.M. Tarawneh, S. MuafagIn the present study the focus was on developing a relationship as practical and convenient option for computing the friction force in O-ring sealing elements as used in the hydraulic and pneumatic equipments. For low-pressure applications, the developed relationship was applied for a different number of O-ring diameters, by investigating the obtained results, a good agreement has been observed for … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 8,465 accessesView PDFCite
Research ArticleOpen accessIn the abstractSelective Lymphocyte Activation and Inhibition of In Vitro Tumor Cell Growth by Novel MorphinansRicardo Gomez-Flores, Kimberly R. Vietti, William J. Dunn et al.Opioids can suppress immune functions and increase susceptibility to developing cancer and infectious diseases. Recently, novel opioid compounds have been synthesized that lack immunosuppressive effects. We evaluated the effects of morphinans with substituted pyrimidine (methyl, phenyl, hydroxy, and amino groups) and pyrazole groups on in vitro rat thymic lymphocyte and splenic macrophage functions, and tumor cell growth. We observed that … …American Journal of Immunology, Vol. 2, Issue 1 · 5 Mar 2005 · 7,082 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpulse Volt-Time Characteristics of Oil and OIP InsulationS. Venkatesan, S. UsaEstimation of insulation strength of transformer oil and Oil Impregnated Paper (OIP) insulation, which constitutes major portion of insulation in power transformer, is an important task. Also, it is often necessary to evaluate the breakdown strength of oil and OIP under non-standard impulse voltages, since the oil and OIP insulation is subjected to non-standard waveshapes between inter-disc and inter-turn insulation. … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,244 accessesView PDFCite
Research ArticleOpen accessIn the abstractBy-pass Devices as Effective Means of Protection from the Hydraulic HammerKhalid S. Al-RababaSwitching-off the parallel working pump units causes sudden discharge changes in parallel pipe lines, as a result of that hydraulic shocks takes place. The damping of these shocks can be achieved by the installation of the by-pass devices between the parallel lines of the piping system. The analytical calculations demonstrate that the reduction in hydraulic shocks reaches 40% and considerable … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 6,918 accessesView PDFCite