نتایج جستجو برای: acid raining

تعداد نتایج: 747902  

Journal: :Frontiers for Young Minds 2022

Tea is a mix of natural plant chemicals dissolved in water. You should not drink it, but weak tea drips through tree’s branches and runs down its trunk when it raining. The main ingredients both tree are organic molecules. Some, like tannins, colorful give their brownish colors. Others, including sugars, clear loaded with energy. Some molecules build up on the surface as sweats. Other deposited...

Journal: :Frontiers for Young Minds 2021

You have probably heard that plastic pollution is becoming a big problem for the environment, and especially oceans. When piece of reaches sea, seawater sunlight make it slowly fall apart into tiny particles. These small particles are called microplastics even smaller than ladybug—and sometimes not visible. Scientists found many marine animals mistake these food eat them! But what about in cora...

Journal: :IOP conference series 2021

Drying is an easy method to apply and dependent on the type of sample drying in food preservation. Natural uses simple materials equipment. Sunlight as energy resource dry sample. In this research, carrot used samples with thickness variations. After 8 days, largest weight loss value was found 3 a total reduction 16.76 mg then, 2 8.64 5.10 mg. The best conditions for are open directly exposed d...

2011
Stephen Schiffer

Our propositional-attitude concepts are indispensable to us; our very survival depends on the ways we use those concepts to exploit others as sources of information about the extra-cranial world and to predict and explain our own and other people’s behavior. If, as many suppose, to have a propositional attitude is to stand in a propositional-attitude relation to a proposition, then we should fi...

2008
Richard de Grijs

The last tidal encounter between M82 and M81, some 500 Myr ago, had a major impact on what was probably an otherwise normal, quiescent disc galaxy. It caused a concentrated burst of star formation in the form of massive star clusters, which decreased rapidly, within a few 100 Myr. The current starburst in the centre of the galaxy is likely either due to large-scale propagating star formation or...

Journal: :Complex Systems 1989
Erach A. Irani John P. Matts John M. Long James R. Slagle

Powerful new training algori thms developed for ar tificial neural networks hold th e promise of identifying regulari ties in the t raining data and generalizing over the test data. T he backprop agation algorithm is one such training algorithm t ha t, with th e use of hidden units, can learn functions such as exclusive-or. These fun ctions can be learned by statis tical techniques such as mult...

Journal: :Molecular cell 2015
Lin Guo James Shorter

Paradigm-shifting advances have revealed that diverse membraneless organelles originate via liquid-liquid phase separation, but how their distinct structural and functional milieux are specified is not understood. Recent work elucidates that RNA governs the biophysical characteristics of liquid droplets formed by RNA-binding proteins with low-complexity domains and can decelerate pathogenic fib...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم پایه 1390

نقش فزاینده رادیکال های آزاد و اکسید کننده های وابسته در فرایند پیری و بیماری زایی آشکار شده است ، نظر به افزایش روز افزون مقدار رادیکال های آزاد در سیستم حیاتی، استفاده از آنتی اکسیدان ها جهت جلوگیری از اثرات مخرب آنها اهمیت می یابد. بررسی تحقیقات انجام شده در زمینه قدرت آنتی اکسیدانی میوه ها و سبزیجات، انار را در گروه میوه های مهم واجد اثرات آنتی اکسیدانی قوی قرار داده است، لذا در این پژوهش ا...

Journal: :Complex Systems 1991
Wray L. Buntine Andreas S. Weigend

Connectionist feed-forward networks, t rained with backpropagat ion, can be used both for nonlinear regression and for (discrete one-of-C ) classification. This paper presents approximate Bayesian meth ods to statistical components of back-propagat ion: choosing a cost funct ion and penalty term (interpreted as a form of prior probability), pruning insignifican t weights, est imat ing the uncer...

2008
Terence L. Kubar Dennis L. Hartmann

[1] Cloudsat cloud radar data are used to investigate the vertical structure of cloud systems of the ITCZ across the West and East Pacific and its contribution to precipitation. Cloud radar data are collocated with precipitation rates from the Advanced Microwave Scanning Radiometer (AMSR) to examine differences in cloud top PDFs for different rain rate regimes. Heavily precipitating clouds have...

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