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Factors influencing speed

Trankle, U., and Deutschmann, D. (1991), Factors Influencing Speed and Precision of Cursor Positioning Using a Mouse, Ergonomics, Vol. 34, No. 2, pp. 161-174. [Pg.1236]

Factors Influencing Speed of Movement and Speed of Movement Measurements... [Pg.1255]

Speed of Movement Terminology Factors Influencing Speed of Movement and Speed of Movement Measurements Parameters Measured Instruments Used to Measure Speed of... [Pg.453]

The proper coordination and regulation of such factors as speed and pressure of the iajection plunger, temperatures of both the dies and the metal, and gating and venting influence the quaUty of die castings, especially with regard to soundness of stmcture and surface finish. [Pg.245]

Fast-twitch muscle fibers develop tension two to three times faster than slow-twitch muscle fibers because of more rapid splitting of ATP by myosin ATPase. This enables the myosin crossbridges to cycle more rapidly Another factor influencing the speed of contraction involves the rate of removal of calcium from the cytoplasm. Muscle fibers remove Ca++ ions by pumping them back into the sarcoplasmic reticulum. Fast-twitch muscle fibers remove Ca++ ions more rapidly than slow-twitch muscle fibers, resulting in quicker twitches that are useful in fast precise movements. The contractions generated in slow-twitch muscle fibers may last up to 10 times longer than those of fast-twitch muscle fibers therefore, these twitches are useful in sustained, more powerful movements. [Pg.149]

Intermetallic compound formation may be observed as the result from the diffusion across an interface between the two solids. The transient formation of a liquid phase may aid the synthesis and densification processes. A further aid to the reaction speed and completeness may come from the non-negligible volatility of the component(s). An important factor influencing the feasibility of the reactions between mixed powders is represented by the heat of formation of the desired alloy the reaction will be easier if it is more exothermic. Heat must generally be supplied to start the reaction but then an exothermic reaction can become self-sustaining. Such reactions are also known as combustion synthesis, reactive synthesis, self-propagating high-temperature synthesis. [Pg.566]

White phosphorus exposure to plants results in a variety of deleterious effects which are based upon the species of plant, the smoke concentration, the duration of exposure, the relative humidity, and the wind speed. These effects can include leaf tip bum, leaf curl, leaf abscission and drop, floral abortion, chlorosis, neucrotic spotting, wilting, dessication, and dieback. Other factors influencing the effects of white phosphorus upon plants are whether or not there is a post-exposure rainfall and whether the exposure is a large acute dose or several lower chronic doses (Van Voris et al. 1987). [Pg.193]

The quality of chromatographic separation depends on the composition of the stationary phase of the column and the instrument settings. The temperature regime of the oven the flow rate of the mobile phase gas through the column the temperature of the injection port—all of these factors influence compound retention time and peak resolution. The reduction in the chromatographic analysis time may adversely affect compound resolution. Because commercial laboratories always balance a need for a sufficient resolution with a need to perform analysis within the shortest possible period of time, the quality of chromatographic resolution is often traded for the speed of analysis. [Pg.213]

When emulsion techniques are used for microsphere preparation, a number of processing factors influences the final structure of the microspheres, e.g., the choice of solvents and surfactants, phase viscosity, the ratio of the dispersed to the continuous phase, mixing speed, processing temperature, and time. Micro-... [Pg.100]

Temperature is another factor influencing the behavior of gases. Temperature is a measure of the speed at which molecules and atoms are moving. The higher the temperature, the faster the speed. [Pg.70]

Additional factors influence the extent of the final infarction. The speed of obstruction may allow collateral arteries to develop, if it occurs gradually (Busch et al. 2003), whereas complete sudden blockade of a major artery by an embolus leaves only some minutes to activate sufficient collateral flow. Hypoxia, hyperglycemia, acidosis, fever, hypotonia, and normal or abnormal variants in vascular anatomy my contribute to the resulting infarction (Hossmann 1999). Basically, the loss of oxygen and... [Pg.4]

Works on increase of an overall performance of HHP were simultaneously carried out. For example, in [2] a number of the factors influencing specific output power of HHP has been considered. Properties of metal hydrides (absorbing ability, speeds of reactions, porosity of a covering, the characteristic of a heat transmission of a hydride bed) were analyzed for optimum selection. It has been shown that in pressings from powder metal hydrides gas permeability and effective specific heat conductivity of a bed Xes should be in common optimized in the certain range of a weight share of an additional heat-conducting material. [Pg.852]

The pore volume of the column packing has been shown to be one of the major factors influencing peak resolution in SEC. True high-speed separations, with good resolu-... [Pg.778]


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See also in sourсe #XX -- [ Pg.241 ]




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