منابع مشابه
Interaction of Electrons with Vibrating Molecules
Abstract. General theoretical approach, based on projection operator techniques and scattering theory, applied to the electron transport through flexible molecular bridge is reviewed and explained within a simple model describing a biphenyl molecule connected between two metal leads. Transmission probability through the bridge and its current-voltage characteristics are calculated in one electr...
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The force measuring device is designed to the study of the relationship between vibration amplitude, frequency, speed and traction resistance of the tractor If the design of the force measuring device which consists of a force measuring frame and three octagonal ring transducers is successful, the goal of real-time monitoring of the traction resistance in the process of vibrating sub soil may b...
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The objective of this study was to describe the development of vibrating insoles. Insoles, providing a subsensory mechanical noise signal to the plantar side of the feet, may improve balance in healthy young and older people and in patients with stroke or diabetic neuropathy. This study describes the requirements for the tactors, (tactile actuators) insole material and noise generator. A search...
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BACKGROUND Whereas cilia damage and reduced cilia beat frequency have been implicated as causative of reduced mucociliary clearance in smokers, theoretically mucociliary clearance could also be affected by cilia length. Based on models of mucociliary clearance predicting that cilia length must exceed the 6-7 microm airway surface fluid depth to generate force in the mucus layer, we hypothesized...
متن کاملPrimary cilia
The primary cilium was first so named by Sergei Sorokin in 1968.[1] Since the discovery of primary cilium in 1898 by Zimmerman, three major hypotheses for their function have been put forth. The first is that primary cilia are vestigial organelles inherited from an ancestor whose cells had motile cilia and now are of no purpose in multicellular organisms. The second is that they are involved in...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 1871
ISSN: 0003-0147,1537-5323
DOI: 10.1086/270834