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We examine the dynamical destruction of binary systems in star clusters of different densities. We find that at high densities (10 − 10 M⊙ pc ) almost all binaries with separations > 10 AU are destroyed after a few crossing times. At low densities (O(102)M⊙ pc ) many binaries with separations > 10 AU are destroyed, and no binaries with separations > 10 AU survive after a few crossing times. The...

Mitochondrial membrane potential varies, depending on energy demand, subcellular location, and morphology and is commonly used as an indicator of mitochondrial functional status. Electrophoretic mobility is a heterogeneous surface property reflective of mitochondrial surface composition and morphology, which could be used as a basis for separation of mitochondrial subpopulations. Since these pr...

A systematic design strategy for spiral-wound gas separation systems is studied using a recently proposed algebraic permeator model (Qi and Henson, Approximate modeling of spiral-wound gas permeators, J. Membrane Sci. 121 (1996) 11–24). Nonlinear programming (NLP) is used to determine operating conditions which satisfy the separation requirements while minimizing the annual process cost. The de...

The phase separation temperatures of total leaf phospholipids from warm and cool climate plants were determined in order to explore the relationship of lipid physical properties to a species' thermal habitat. The separation temperatures were determined by measuring the fluorescence intensity and fluorescence polarization of liposomes labeled with the polyene fatty acid probe trans-parinaric aci...

Single-experiment analysis of phospholipid compositional gradients reveals diffusion coefficients, phase separation parameters, and binding densities as a function of localized lipid mixture. Compositional gradients are formed by directed self assembly where rapid-prototyping techniques (i.e., additive manufacturing or laser-cutting) prescribe lipid geometries that self-spread, heal and mix by ...

Biological membranes undergo noticeable thermal fluctuations at physiological temperatures. When two approach each other, they hinder the out-of-plane of other. This hindrance leads to an entropic repulsive force between which, in interplay with attractive and forces owing other sources, affects a range biological functions: cell adhesion, membrane fusion, self-assembly, binding–unbinding trans...

Advanced porous materials with uniform molecular scale apertures are highly desirable for energy related separations. Among them, zeolitic imidazolate frameworks (ZIFs) have received significant interest as separation membranes owing to their narrow that can target small gases. ZIFs exhibit excellent gas transport properties, such unprecedentedly high C3H6 permeability and remarkable C3H6/C3H8 ...

Separation and concentration technologies are among the most important unit operations in food processing. From disk-bowl centrifugation for industrial-scale production of skim milk to crystallization for sucrose or ultrafiltration to recover soluble proteins from cheese whey, separation and concentration processes have improved food processing. These technologies have allowed the development o...