نتایج جستجو برای: time of concentration
تعداد نتایج: 21278455 فیلتر نتایج به سال:
one very decisive factor in students’ academic destiny is the result they get at final term examinations. because of its importance, both students and teachers are curiously anxious about them. as normally it is the case, these final term tests are prepared hurriedly in short time by teachers which result in students’ dissatisfaction, complaining on how the test was different from their expecta...
the aim of this paper is to examine and analyze the spatial distribution of population in cities of the southern coastal region of iran by using common models and techniques in the field and to study the trends of evolution in a time period of 40 years (1345-1385). models used in the study can be classified into three main groups. the first group is the primate city indexes (including jefferson...
the aim of this research was to use osmosis-ultrasound compound pre-treatment and studying the time of drying and the potentiality to rehydration in dried samples of kiwi fruit (hayvard variety). the samples were drained in three timed phases, 10, 20 and 30 minutes in room temperature in 30, 50 and 70 bx in ultrasound bath osmosis solutions. the results of drying time showed that by decreasing ...
from 1950s onward, new theories and critical approaches burgeoned across humanities. these theories were context-oriented; as a result, the analysis of discursive practices gained significance. thus, social, political, historical and cultural discourses that have been hitherto marginalized and considered inferior to literary texts, were introduced as important texts to be analyzed by critics. o...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
abstract: the combination of pulsed vacuum osmotic dehydration and microwave drying of garlic bulbs were examined. the response surface methodology (rsm) was used to determine the effect of nacl concentration (8%-20%), osmotic solution temperature (25-65°c), operation pressure (240-830 mbar), immersion time (20-300 min) and microwave power level (100-600 w) on water loss (wl), solids gain (sg),...
T HE RECORDING of concentration-time curves at a peripheral arterial site following injection of an indicator into the heart and great vessels provides a valuable tool for the study of normal and abnormal circulation. Its increasing use in diagnostic and research laboratories attests to its efficacy. When this technic is used, it is desirable to have a normal standard of reference with which th...
Uncertainty principles for generating systems {en} ∞ n=1 ⊂ L (R) are proven and quantify the interplay between l(N) coefficient stability properties and time-frequency localization with respect to |t| power weight dispersions. As a sample result, it is proven that there does not exist a unit-norm Schauder basis nor a frame {en} ∞ n=1 for L (R) such that the two dispersion sequences ∆(en), ∆(ên)...
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