the mono-metallic and bi-metallic catalysts have been prepared by impregnating with solutions containing a compound of h2ptcl6,wo3 and 1ml hcl (0.1 mol). it should be noted that the catalysts’ activity and selectivity have been determined under these conditions : 450-5000c ,and 15-25atm by h2. for converting n-heptane , the molar ratio h2/c7h16 is 5 , and lhsv is 1.5ml/h. it has been proved tha...

fine particles silicoaluminophosphate-34 were synthesized by hydrothermal sol-gel method. the effect of crystallization time, as one of the important synthesis factors on particle size and crystallinity, kinetic and equilibrium adsorption, and selectivity of co2 / ch4 has been studied in this work. the adsorption isotherms are obtained at moderate gauge pressures (100-3000 kpa) and temperatures...

Corresponding Authors: Tanmoy Bera Department of Pharmaceutical Technology, Jadavpur University, Kolkata700032, India. E-mail: [email protected], Phone: +91 9831470041, Tele Fax: +91 3324146677. Abstract: Backgrounds and objectives: Leishmania donovani is one of the most common species responsible for visceral leishmaniasis (VL) in India, Bangladesh and Sudan. The pentavalent antimonials...

Adrenocorticotropic hormone administration was proposed to overcome the biases associated with pulsatile aldosterone secretion during adrenal venous sampling, but the usefulness of different protocols of stimulation was never systematically assessed. We, therefore, compared the effects of a high dose (HD; 250 microg IV as a bolus), a very low dose (VLD; 250 pg IV), and an intermediate dose (ID;...

In this article, modeling of ring resonator for the identification various cancer cells has been proposed. The model exhibits high Q factor and selectivity sensing cells. parameters design are optimized in sample based on its distinct refractive index. proposed device modeled by FDTD simulation method which confirms satisfactorily resonant wavelengths explored feasibility label-free cell with i...

the catalyst pt-ta supported on 7-alumina was prepared by impregnation with solution containing compoundsof ii21k1.0. and ta205 the pt concentration was kept constant at 0.2 vet% while the concentration of thetantalum was 0,4 wt%. the activity and selectivity of catalyst were determined under conditions at 450-500 °cand 15-30 atm.. with molar ratio h2/c[h,e5 and wh=1.5ml/h for converted n-hepta...

In this paper we describe the architecture of ARQo, a rst approach for SPARQL static query optimization in ARQ. Speci cally, we focus on static optimization of BasicGraphPattern (BGP) for in-memory models. Static query optimization is intended as a query rewriting process where the set of triple patterns de ned for a BGP are rewritten according to a speci c order. We propose a rewriting process...

This paper presents a new data structure for multiway and general join query acceleration, the hit-list, and an algorithm for its use. The hit-list is a surrogate index providing the mapping between the values of two attributes in a relation participating in an equijoin or a selection. The results of an analytical model, simulation study, and an implementation are presented. The performance adv...