نتایج جستجو برای: molten polymers
تعداد نتایج: 79954 فیلتر نتایج به سال:
Seeding nanoparticles in molten salts has been shown recently as a promising way to improve their thermo-physical properties. The prospect of such technology is of interest to both academic and industrial sectors in order to enhance the specific heat capacity of molten salt. The latter is used in concentrated solar power plants as both heat transfer fluid and sensible storage. This work explore...
Molten mixtures of lithium chloride and metallic lithium are of significant interest in various metal oxide reduction processes. These solutions have been reported to exhibit seemingly anomalous physical characteristics that lack a comprehensive explanation. In the current work, the physical chemistry of molten solutions of lithium chloride and metallic lithium, with and without lithium oxide, ...
The use of molten salts as novel green solvents which may replace conventional media in chemical processes implies a good knowledge of their micro scopic structure [1]. As known, high temperature NMR spectroscopy has been applied successfully to molten salts. This technique permits to obtain information about the structure and dynamics of the local environment of most of the nuclei in salt mel...
We investigated the conformations of peptides that encompass the B helix or C helix region formed in the molten globule of bovine ƒ¿-lactalbumin to get information on the molecular mechanism that stabilizes the molten globule. The CD spectra show that the isolated B and C helices are intrinsically unstable. The chemical shifts, NOE connectivities, and CD spectrum indicate that no helical struct...
Electrochemical nature of metallurgical reaction arouses more and more attentions, and the most closely related is the electrical conductivity of molten slag. The electrical conductivity of molten slag is not only an important physical property that plays a prominent role in modeling and operating the electric smelting furnace and optimizing the metallurgical process, but also important for und...
The bulk nucleation and basal growth of semiconducting nanowires from molten Ga pools has been demonstrated earlier using oxygen/hydrogen plasma over molten Ga pools. Herein, we extend the above concept for bulk synthesis of oxide and sulfide nanowires of low-melting metal melts such as Sn and In. Specifically, nanowires of b-Ga2O3, b-In2O3, SnO2, a-Ga2S3, and b-In2S3 were synthesized using dir...
At present it is unclear which interactions in proteins reveal the presence of intermediate states, their stability and formation rate. In this study, we have investigated the effect of substitutions of hydrophobic amino acid residues in the hydrophobic core of protein and on its surface on a molten globule type intermediate state of apomyoglobin. It has been found that independent of their loc...
2,5-furandicarboxylic acid (2,5-FDCA) is a biomass derivate of high importance that used as building block in the synthesis green polymers such poly(ethylene furandicarboxylate) (PEF). PEF presumed to be an ideal substitute for predominant polymer industry, terephthalate) (PET). Current routes 2,5-FDCA require 5-hydroxymethylfurfural (HMF) reactant, which generates undesirable co-products due c...
Structure and stability of a second molten globule intermediate in the apomyoglobin folding pathway.
Apomyoglobin folding proceeds through a molten globule intermediate (low-salt form; I1) that has been characterized by equilibrium (pH 4) and kinetic (pH 6) folding experiments. Of the eight alpha-helices in myoglobin, three (A, G, and H) are structured in I1, while the rest appear to be unfolded. Here we report on the structure and stability of a second intermediate, the trichloroacetate form ...
The origin of the catalytic power of enzymes with a meta-stable native state, e.g. molten globular state, is an unsolved challenging issue in biochemistry. To help understand the possible differences between this special class of enzymes and the typical ones, we report here computer simulations of the catalysis of both the well-folded wild-type and the molten globular mutant of chorismate mutas...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید