نتایج جستجو برای: intermolecular attractive force
تعداد نتایج: 257684 فیلتر نتایج به سال:
The polysaccharide xanthan has been extensively studied owing to its potential application in tissue engineering. In this paper, xanthan scaffold structures were investigated by atomic force microscope (AFM) in liquid, and the mechanical properties of the complex xanthan structures were investigated by using AFM-based force spectroscopy (FS). In this work, three types of structures in the xanth...
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در سال های اخیر مطالعه بر روی سیستم هائی دوتائی و سه تائی آبی افزایش یافته است زیرا این مطالعات کمک زیادی به استخراج جداسازی موادشیمیایی مهم و حیاتی می کند و در نتیجه کاربرد زیادی در صنایع مختلف دارد. تعادل مایع-مایع (lle ) منحنی حلالیت برای مخلوطی از (آب+ سیکلوهگزانون+ استیک اسید) در دمای k (15/358 تا 15/291) تعیین شد. در کار حاضر مخلوط سه تائی آب+ سیکلوهگزانون= استیک اسید به همراه اجزاء سازن...
Accurate, low temperature X-ray crystal structure determinations show that 3,3'-biquinoline (6), 2,2'-biquinazoline (7), 2,2'-biquinoxaline (8), 2,2'-bibenzoxazole (10) and 2,2'-bibenzothiazole (11) all exist in the solid state in centrosymmetric, planar conformations that minimise their dipole moments and maximise both conjugation between the rings and various types of attractive intermolecula...
Structural and thermodynamic properties of a nonuniform liquid are related to those of a reference fluid with purely repulsive intermolecular forces in an external field. A new equation for that field derived from the Yvon-Born-Green hierarchy permits a self-consistent description of correlations induced by the exact repulsive forces and a mean field treatment of the attractive forces. Predicti...
In vertebrates, collagen tissues are the main component responsible for force transmission. In spite of the physiological importance of these phenomena, force transmission mechanisms are still not fully understood, especially at smaller scales, including in particular collagen molecules and fibrils. Here we investigate the mechanism of molecular sliding between collagen molecules within a fibri...
artifactual aggregation involving CLV1.) Their intriguing hypothesis is that the CLV3 protein may in fact be the activating ligand of the CLV1 receptor kinase. This possibility is attractive in that intermolecular associations of protein kinases are known to be instigated in animal systems by the binding of ligands to cell receptors. As the authors point out, the cloning of CLV3 will help to el...
Dioxygen-coupled oxidative amination of olefins is an attractive, but challenging, catalytic transformation. The present work describes the first general method for intermolecular oxidative amination of aryl olefins with molecular oxygen as the stoichiometric oxidant. This palladium-catalyzed reactivity is compatible with several different nitrogen nucleophiles, including oxazolidinone, phthali...
in this paper, we study the casimir effect of a scalar field with dirichlet boundary condition in some certain topologies. by numerical analysis we show that casimir energy is a shape-dependent quantity. we also obtain the phase transition in different topologies in which the casimir force changes from attractive to repulsive or vice versa. eararqr
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