Results 11 to 20 of about 438,222 (313)
Lagrangian mechanics of active systems [PDF]
The European Physical Journal E, 2021 Abstract We present a multi-scale modeling and simulation framework for low-Reynolds number hydrodynamics of shape-changing immersed objects, e.g., biological microswimmers and active surfaces. The key idea is to consider principal shape changes as generalized coordinates and define conjugate generalized hydrodynamic ...
Solovev, Anton, Friedrich, Benjamin M.
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Effect of the mechanical activation on size reduction of crystalline acetaminophen drug particles [PDF]
, 2009 The decrease in particle size may offer new properties to drugs. In this study, we investigated the size reduction influence of the acetaminophen (C8H9O2N) particles by mechanical activation using a dry ball mill.
Asefnejad, Azadeh +10 more
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Materials Research Express, 2023 To facilitate the high-value utilization of activate coal gasification fine slag (CGFS), a wet mechanical activation process was used. As a result of this treatment, CGFS samples with different particle size distributions were obtained.
Kangli Li +4 more
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Eurasian Chemico-Technological Journal, 2021 The results of a study of the microstructure evolution of pre-mechanically activated elementary powders based on the Ti-25Al-25Nb (at.%) compositions differing in the particle size of the aluminum (Al) component are presented.
Ye. А. Kozhakhmetov +4 more
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A mechanism for active hearing [PDF]
Current Opinion in Neurobiology, 2007 The remarkable sensitivity, frequency selectivity, and nonlinearity of the cochlea have been attributed to the putative 'cochlear amplifier', which consumes metabolic energy to amplify the cochlear mechanical response to sounds. Recent studies have demonstrated that outer hair cells actively generate force using somatic electromotility and active hair ...
Tianying, Ren, Peter G, Gillespie
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Investigating mechanosensitive channels activation in concert with the mechanical properties of red blood cells [PDF]
, 2023 The activity of the mechanosensitive Ca2+ permeable channels expressed in the membrane of the red blood cells (RBC) is determined both by the mechanical stimuli and the mechanical properties of the cell.
Catalin Dacian Ciubotaru +11 more
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Role of acid-base interactions in synthesis of cordierite from talc and sillimanite group minerals [PDF]
Science of Sintering, 2013 It has been found that the mechanical activation of mixtures of sillimanite group minerals with talc and silica additives in grinding-activating devices with periodic and flow action provides significant acceleration of their interaction with ...
Avvakumov E.G. +3 more
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Mechanism of charity activity [PDF]
Actual Problems of Economics and Law, 2015 Objective: to establish the essential properties of the mechanism of charitable activities and to formulate the concept of "mechanism of charitable activity".Methods: the objective of the study is achieved using the complex of methods, which are based on the interaction of dialectical and metaphysi- cal analysis, the epistemological properties of which
R. B. Golovkin, V. I. Zhuravlev
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Transcriptional activators and activation mechanisms [PDF]
Protein & Cell, 2007 Transcriptional activators are required to turn on the expression of genes in a eukaryotic cell. Activators bound to the enhancer can facilitate either the recruitment of RNA polymerase II to the promoter or its elongation. This article examines a few selected issues in understanding activator functions and activation mechanisms.
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Electrical properties of mechanically activated zinc oxide [PDF]
Science of Sintering, 2006 Microstructural properties of a commercial zinc oxide powder were modified by mechanical activation in a high-energy vibro-mill. The obtained powders were dry pressed and sintered at 1100°C for 2 h.
Vojisavljević K. +3 more
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