منابع مشابه
An Investigation of Artificial Neural Network Based Prediction Systems in Rain Forecasting
The present research work is about to disaster mitigation using the applications of ANN. The ANN is used in the number of diverse fields due to its ability to model non linear patterns and self adjusting (learning) nature to produce consistent output when trained using supervised learning. This study utilizes Backpropagation Neural Network to train ANN models to mitigation of disaster through f...
متن کاملChanges in Prompt Chlorophyll Fluorescence and Oxygen Evolution after Bean Plant Treatment with Artificial Acid Rain
The effects of artificially applied acid rain on functional activity of PS2 and oxygen evolution of bean plants (Phaseolus vulgaris L.) were investigated. The plants were subjected to single treatment with acid rain of different pH – pH 5.6 (control) and 2.4, 2.2, 2.0 and 1.8. Measurements were carried out in dynamics – at time intervals of 3–168 hours. The results showed that the treatment of ...
متن کاملThe effects of temperature and artificial rain on the metabolism of American kestrels (Falco sparverius).
The effect of rainfall on the metabolism of birds is poorly understood. We measured the metabolism as rate of oxygen consumption (VO2) of four male and four female American kestrels (Falco sparverius) using open-circuit respirometry. We measured VO2 during the spring at ambient temperatures (Ta) of 5, 10, 15, and 25 degrees C in air without rainfall and with simulated rainfall of 2.5 (low rainf...
متن کاملEffect of artificial acid rain and SO2 on characteristics of delayed light emission.
The structure and function of chloroplast in plant leaves can be affected by acid rain and air pollution. The photosystem II in a plant is considered the primary site where light-induced delayed light emission (DLE) is produced. With the lamina of zijinghua (Bauhinia variegata L.) and soybean (Glycine max (L.) Merr.) as testing models, we studied the effects of artificial acid rain and SO2 on c...
متن کاملTropical Rain Classification and Estimation of Rain from Z-r (reflectivity-rain Rate) Relationships
A Z-R relation is derived using a data set which consists of nine rain events selected from Singapore’s drop size distribution. Rain events are separated into convective and stratiform types of rain using two methods: the Gamache-Houze method, a simple threshold technique, and the Atlas-Ulbrich method. In the Atlas-Ulbrich method, the variability of the rain integral parameters R, Z, Nw, D0 and...
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ژورنال
عنوان ژورنال: Nature
سال: 1901
ISSN: 0028-0836,1476-4687
DOI: 10.1038/063232a0