Factors affecting growth rate

Some of the conditions associated with the 1981 bloom are very similar to those found in the 1983 bloom. Direct comparison of the factors affecting growth rates is not possible because division indices and 4 m nutrient data are not available for 1981. However, concentrations of N and P at both 1 and 9 m levels decreased markedly as the bloom peaked and began to decline (Figure 7). In the two days following the peak of the bloom, there was a marked drop in temperature throughout the water column, which also may have reduced the division rate. 

One of the critical factors affecting growth rates is the gas-phase temperature which can be reached in a CVD method. A comparison of the various CVD methods to each other demonstratesl that typical linear growth rates correlate positively with estimated gas-phase temperatures (Fig. 1), approaching 1 mm h in atmospheric pressure plasma arc-jet CVD with temperatures around 6000 to 7000 K. The partial pressures of various gas species in typical CVD processes have been calculated as a function of... 

Why do we get differences in crystal shape or habit This may be a matter of directional rates of growth. Factors affecting directional rates will then affect the habit. Directional rates of growth can be illustrated with a relatively simple crystal structure, that of sodium chloride. 

As might be predicted, temperature is one of the major factors affecting the rate of development in the intermediate host. The cysticercoids of H. diminuta develop in Tribolium in 5 days at 37°C (Fig. 8.21) but require 65 days at 15°C a temperature higher than 37 °C appears to inhibit cysticercoid development and induce abnormalities (796). The effect of temperature on the development of Dipylidium caninum in the cat flea Ctenocephalides felis felis has also been studied (662). No perceptible growth occurred at 20 °C but development was accelerated for every 5 deg. C increment from 20 °C to 35 °C it was also affected to some extent by the relative humidity. The most satisfactory temperature for development appears to be 32 °C, at which temperature the flea hosts developed normally... 

Growth of Concretions In sedimentary rocks we commonly find concretions, that is, material formed by deposition of a precipitate, such as calcite or siderite, around a nucleus of some particular mineral grain or fossil. The origin of most concretions is not known but their often-spherical shape with concentric internal structure suggests diffusion as an important factor affecting growth. The rate of growth, if diffusion controlled, is readily amenable to mathematical... 

In principle, many factors affect the rate of degradation of PHAs. They include the properties of the polymers, such as the molecular composition, the resulting intermo-lecular interactions, hydrophilic and hydrophobic behavior, the structural parameters, like degree of crystallinity, level of orientation, surface structure, and molecular weight. Concerning biopolymers, the related factors are the growth of microorganisms, especially the pH-value, temperature, aerobic or anaerobic conditions etc. 

Fatigue damage is predominantly caused by crack growth under cyclic loading. Several factors affect the rate at which a crack propagates in a material ... 

Burke, J.E. Some factors affecting the rate of grain growth in metals. Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers 180 (1949), pp. 73-91. 

Austen, I.M., Walker, E.F., May, M.J. Factors affecting the rate of growth of cracks by corrosion-fatigue. Technical Report STF-62IQ/KE/18/802 (1976)... 

From J. E. Burke, Some Factors Affecting the Rate of Grain Growth in Metals. Reprinted with permission from Metallurgical Transactions, Vol. 180,1949, a publieation of The Metallurgieal Society of AIME, Warrendale, Pennsylvania.)... 

Numerous factors control AET and thus control the hydrologic performance of an ET cover. Soil-water content, rate of root growth, and total root mass strongly affect the rate of AET. AET is also affected by whether wet soil is available in surface soil layers, deeper in the profile, or in... 

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