Materials Literature
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Solubility is one of the important parameter to achieve desired concentration of drug in systemic circulation for pharmacological response to be shown. Poorly water soluble drugs often require high doses in order to reach therapeutic plasma concentrations after oral administration. Low aqueous solubility is the major…
Orbital riveting is a relatively new technology in which parts are produced by specific movement of tools. Special incremental motion enables smaller contact area between tool and workpiece and Therefore, lower forming load and friction. Hence, orbital forging in some cases makes it possible to produce a desired part…
We perform density functional based calculations on the structures and stabilities of ZnF n clusters up to n = 6. We find that Zn can bind successively to four F atoms, expanding its oxidation state to +4 from nominal vof +2. All these species are stable in their neutral as well a s anionic states. Furthermore, the ad…
A series of polycrystalline La1-xSrxMnO3(x=0,0.15, 0.3,0.45) compound have been synthesized by sol-gel method. X-ray diffraction analysis revealed the nano crystalline nature of La1-xSrxMnO3. The electrical properties for all the samples have been studied as a function of frequency in the range 42 Hz-50 MHz and temper…
Since 1984, Shechtman et al. published a paper which marked the discovery of quasicrystals. The local five fold symmetry (LFFS) structure is becoming an unsocial hero, who walks a muricated way against classical crystallography. As well known, the LFFS clusters have largely potential application prospect in catalysis,…
Despite a vast amount information on the interplay of GroEL, GroES, and ATP in chaperone-assisted folding, the molecular details on the conformational dynamics of folding polypeptide during its GroEL/GroES-assisted folding cycle is quite limited. Practically no such studies have been reported to date on large proteins…
The synthesis and characterisation of ternary semiconducting oxide, zinc stannate or zinc tin oxide (ZTO) has been made with a view to understand the structural and morphological variations with temperature. The entire group of metal oxide semiconductors includes structures such as ABO 3 perovskites, A 2BO4 spinels an…
This article is dedicated to the experimental development of an automated quantitative method for differentiating genuine and skilfully simulated short and simple signatures (initials) without conspicuous motor variations. 263 known freehand simulated signatures and 186 samples were processed. The method uses the Baye…
Sintered steel specimens Fe-Mn-(Cr) and Fe-Mn-(Cr-)C with up to 1.8%Mn were prepared by pressing and sintering in different atmospheres. Charpy impact tests were carried out at room temperature, and the fracture surfaces were studied by SEM. The impact energy of the carbon-free materials is influenced both by the comp…
In present work, phase constitution and termomagnetic properties of LaFe11.14Co0.66Si1.2 xAlx (where x= 0.1, 0.2, 0.3) alloys were investigated. Ingot samples were obtained by arc ‐ melting under the low pressure Ar atmosphere. Subsequently samples were annealed at 1323K for 15 days. X-ray diraction of all samples rev…
Eco-friendly green methodologies have attracted the attention in every field of research owing to environmental pollution and the alarming development of global warming. In search for eco-friendly materials for the synthesis of metal nanoparticles and corrosion inhibition, the leaf-extract of Solanum nigrum have ident…
L'étude de la déformation de la barre collectrice dans les conditions subies au sein de la cellule de réduction d'aluminium est d'une grande importance pour l'optimisation de l'efficacité et l'augmentation de la durée de vie de la cellule. Ce mémoire nous informe des résultats d'un programme expérimental réalisé sur u…
Methods Hundreds of experiments of different types were run over a period of five years to investigate supersaturation and precipitation of small molecule drugs in aqueous solution. The results of this work have led to a better understanding of the types of behaviour that a drug can exhibit. The experiments undertaken…
Bacterial adaptation and defense mechanisms against silver are poorly understood at the genetic level. A library of Escherichia coligene-deletion mutants was used to show that clones lackingsodB(coding for oxidative stress protection),lon(protein damage repair), or cusR (metal efflux pump) are quite sensitive to silve…
Plant essential oils are potential source of antimicrobials of natural origin. Oil extracted from twenty nine medicinal plants were screened for their antimicrobial activity against human pathogenic bacteria and fungi causing skin diseases. The antimicrobial activity of 29 oils were investigated against Escherichia co…
Ceria thin films (CeO2) were prepared by electrochemical cathodic deposition process. Different types of substrates were used such as aluminum, titanium and stainless steel. As it is possible to deposit separately pure ceria (CeO2), pure calcium oxide (CaO) and pure Zinc oxide (ZnO), CeO2-CaO and CeO2-ZnO binary oxide…
Present work aims at the characterization of ARC films in the visible spectrum, up to five layers antireflection coating film were designed and simulated, optical reflection values were deduced with a Transfer Matrix Method formulation (TMM). Six materials including nanoporous material have been selected to investigat…
The fermented chitin nanowhiskers (FCNW) filled polylactic acid (PLA) biocomposite films were successfully produced using solution casting method. The biocomposite films were characterized in terms of tensile properties. The Young’s modulus increased with increasing FCNW content while the tensile strength increased an…
40 0 C after every 2.5hrs till a maximum temperature of 380 0 C was attained. A blend of of 1:1 mixture of the basestocks was also treated under same test conditions. The thermooxidation stabilities of the basestocks were evaluated based on standard parameters namely, the Total Acid Number (TAN) and the Total Oxidatio…
The article describes numerical calculation and analysis of the use of the correlation method for predicting durability of a mechanical system - the bearing structure of a metallurgic crane bridge. Studied input parameters of the system are maximum stresses in the cross-section of the bridge bearing construction, and…