نتایج جستجو برای: chemical mass closure
تعداد نتایج: 879753 فیلتر نتایج به سال:
Several difurylperfluorocyclobutenes showing reversible photochromism were synthesized. In comparison to their cyclopentene homologues they show enhanced quantum yields for ring opening but reduced quantum yields for ring closure. X-ray structure analysis and quantum chemical calculations provide a conclusive explanation for such a behaviour.
The study focused on the extraction of essential oils from Schinus molle L. seeds using a novel pulsed steam distillation method, followed by fractionation to create an anti-inflammatory topical pharmaceutical product. This formulated product was unexpectedly employed in specific case where individual suffered deep wound forehead due accident involving sharp metal object, resulting excessive bl...
Small-angle neutron scattering (SANS) with contrast variation was used to obtain the low-resolution structure of nascent HDL (nHDL) reconstituted with dimyristoyl phosphatidylcholine (DMPC) in the absence and presence of cholesterol, [apoA1:DMPC (1:80, mol:mol) and apoA1:DMPC:cholesterol (1:86:9, mol:mol:mol)]. The overall shape of both particles is discoidal with the low-resolution structure o...
The present paper aims at an upscaled description of coupled heat and mass processes during solid–fluid combustion in porous media using volume-averaging theory (VAT). The fluid flows through the pores in a porous medium where a heterogeneous chemical reaction occurs at the fluid–solid interface. The chemical model is simplified into a single reaction step with Arrhenius kinetic law, but no ass...
In this paper we will generalize some of known results on the tight closure of an ideal to the tight closure of an ideal relative to a module .
Background. Postoperative sternal instability can be associated with the density of bone and type of wire closure. Sternal instability is a serious complication, especially in diabetic obese patients. This category of patients is susceptible to activation of inflammation and inflammatory and/or infective involvement of the sternum after sternotomy. This study was designed to evaluate the compar...
Free and conjugated sterols are among the main compounds responsible for pitch deposition in the manufacture of wood chemical pulps, making difficult the implementation of totally chlorine free bleaching (TCF) and closure of bleach plant circuits. In this work, the suitability of oxidative enzymes in efficiently removing sterols from eucalypt pulps is revealed. The enzymatic treatment was appli...
In this research mass transfer coefficient under jetting regime in different directions (from dispersed to continuous and continuous to dispersed phase) has been studied using an experimental setup. n-Butanol-succinic acid-water with low interfacial tension has been selected as experimental chemical system. The effects of various parameters such as jet velocity, nozzle diameter and the heig...
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