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Synchronous movement

In most cases BPR gives a clear presentation of the possible movements of a TBP as shown in Figure 4. A pair of (e) ligands, (3) and (4), moves in the plane perpendicular to the plane of the paper in the direction of the arrows and the pair of (a) ligands, (1) and (2), moves in the plane of the paper in the opposite direction. Ligand (5), the pivot , does not move at all. By these synchronous movements an SP intermediate or transition state... [Pg.529]

In ice a chain of hydrogen-bonded water molecules links the hydroxide and the hydrogen ions (Eq. 9-94). By synchronous movement of electron pairs from the OH ion and from each of the water molecules in the... [Pg.491]

The synchronized movement of the eyelids spreads the precorneal tearfilm across the cornea and pushes it toward the nasolacrimal duct. Precorneal drainage is quite efficient. An aqueous instilled dose leaves the precorneal area within 5 min of instillation in humans. Most of the drug absorbed by transcorneal penetration, without retention modification, is spread across the cornea by the eyelids in the first minutes postdosing. In the precorneal space transcorneal penetration is limited by solution drainage, lacrimation and tear dilution, tear turnover, conjunctival absorption, and the corneal epithelium. Slowing down tear film turnover has well-established benefits to topical ocular drug delivery. [Pg.476]

Stated, synchronous movement becomes relevant on approaching the reaction barrier. However, in the study of Ushiyama and Takatsuka [47] the turmeling was described as a successive step by step process. [Pg.44]

In the various regions of the respiratory tract different physiological mechanisms exist to remove foreign material. In the extra-thoracic airways, the trachea and the bronchi there is a thick liquid lining and the synchronous movement of microscopic hairy cila at the surface of the bronchial epithelial cells rapidly moves deposited particles toward the larynx, where they are swallowed (mucociliary clearance). Normally this takes 1-3 days. Only highly soluble material moving from the air into the liquid layer will have systemic access via the blood. [Pg.531]

The scapulohumeral rhythm is a free-flowing and synchronous movement of the scapula and humerus. During abduction, the scapula rotates as the humerus elevates. For every 15 degrees of abduction, humeral elevation accounts for 10 degrees and scapular rotation accounts for 5 degrees. Dysfunction of humeral elevation or of scapular rotation can disturb this rhythm and interfere with shoulder function. Dysfunction of clavicular motion can also interfere with this rhythm. [Pg.413]

Movement of information in a computer could be likened to a railway system. Carriers of information (bits or bytes) move together (like a train and wagons) from one location to another along electronic tracks. It is important that no two bits of information are mixed up, and therefore all the moves must be carefully synchronized with a clock. This situation resembles the movement of trains on a railway many trains use the same track but are not all in the same place at the same time. The railways run to a timetable. Similarly, information is moved around the computer under the control of the central processor unit (CPU). [Pg.311]

Another possibiUty is to enclose only the working, top part of the horizontal belt in a pressure vessel and pass the belt through the sides of the vessel. The operation must be intermittent because the belt cannot be dragged over the support surface with the pressure on, and the entrance and exit ports for the belt must be sealed during operation to prevent excessive losses of air. The movement of the belt is intermittent and is synchronized with decompression in the vessel therefore, the entire vessel volume must be depressurized in every cycle and this is wasteful. There is also an inevitable downtime. There are no problems with discharging the cake because this is done at atmospheric pressure. [Pg.407]

Nonciliated cells separate fields of ciliated epithelial cells from each other. Synchronized ciliary movement, with a beat frequency in human proximal airways under normal conditions of 8-15 EIz, propels mucus along the mucociliary escalator at a rate of up to 25 mm/min. Beat frequencies appear to slow to roughly 7 Hz in more distal airways. Cilia move in the same direction and in phase within each field but cilia in adjacent fields move in slightly different directions and are phase shifted. These beat patterns result in metachronal waves that steadily move mucus at higher velocities ( -12-18 mm/min) than would be achievable by summing the motion of individual cilia. [Pg.215]

Metachronal wave Synchronized ciliary movement over a relatively large... [Pg.237]

Mucociliary escalator Mechanism that removes extracellularly-derived materials from the conducting airways by entrapping these materials in mucus that is continuously moved toward the epiglottis by synchronized ciliary movement. [Pg.237]

Rapid eye movement sleep. Sleep stage characterized by rapid movements of the eyes and asynchronous EEG activity in the theta-frequency (5-10Hz) range. Counterpart is slow wave sleep, characterized by other electrophysiological (synchronized low frequency l-2Hz, large amplitude EEG and neuronal sharp wave-ripple oscillations) and endocrine (growth hormone surge) activities. [Pg.1065]

It is suggested that the mode of subduction of the Pacific Plate since the middle Miocene age related to Jackson s episode, hence oscillation of direction of lateral movement of Pacific plate. Synchronized igneous and hydrothermal activities and Jackson s episode indicate that the formations and characteristics of hydrothermal ore deposits (Kuroko and epithermal vein-type deposits) are largely influenced by plate tectonics (mode of subduction, direction of plate movement, etc.). For example, sulfur isotopic composition of sulfides is not controlled by /o and pH, but by of... [Pg.450]

The concept of tandem generally recalls to mind tandem bicycles in which at least two cyclists ride the same bicycle. If the cyclists want to avoid falling, they must synchronize their movements and the trajectory of the tandem Similarly, tandem MS[28] involves two or more partners, in the specific case the analyzers, which are synchronized. This is particularly important for obtaining structural information and for quantitative analysis. [Pg.60]


See other pages where Synchronous movement is mentioned: [Pg.151]    [Pg.614]    [Pg.107]    [Pg.339]    [Pg.321]    [Pg.1633]    [Pg.427]    [Pg.606]    [Pg.149]    [Pg.47]    [Pg.136]    [Pg.523]    [Pg.145]    [Pg.157]    [Pg.25]    [Pg.151]    [Pg.614]    [Pg.107]    [Pg.339]    [Pg.321]    [Pg.1633]    [Pg.427]    [Pg.606]    [Pg.149]    [Pg.47]    [Pg.136]    [Pg.523]    [Pg.145]    [Pg.157]    [Pg.25]    [Pg.57]    [Pg.482]    [Pg.101]    [Pg.112]    [Pg.833]    [Pg.257]    [Pg.23]    [Pg.243]    [Pg.326]    [Pg.798]    [Pg.131]    [Pg.374]    [Pg.198]    [Pg.775]    [Pg.94]    [Pg.399]    [Pg.448]    [Pg.106]    [Pg.287]   
See also in sourсe #XX -- [ Pg.213 ]




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