in this contribution, linearized dynamic model of cumulative mass fraction (cmf) of potassium nitrate-water seeded continues mixed suspension mixed product removal (cmsmpr) crystallizer is approximated by a simplified model in frequency domain. frequency domain model simplification is performed heuristically using the frequency response of the derived linearized models data. however, the cmf fr...

background: radioiodine therapy has proven to be an effective method in the treatment of patients with differentiated thyroid carcinoma after thyroidectomy. the scope of this study is to describe a method to obtain the dose of organs using medical internal radiation dosimetry (mird) method. at the end, the results of mird calculations were compared with thermoluminescent dosimeter (tld-100). ma...

abstract aeration is conducted on the perennial grasses such as lawns to reduce soil compaction and enhances the growth as well as improves soil infiltration. in order to evaluate the effects of aeration and topdressing on water infiltration phenomenon in a perennial lawn a factorial experiment in a completely randomized design was conducted in the city of isfahan in june 2009. aeration, as the...

It has been claimed that a unique feature of human culture is it accumulates beneficial modifications over time. On the basis couple methodological considerations, we here argue that, perhaps surprisingly, there insufficient evidence for proper test this claim. And indicate what further research would be needed to firmly establish cumulativeness culture.

abstract infiltration process is one of the most important components of the hydrological cycle. on the other hand, the direct measurement of infiltration process is laborious, time consuming and expensive. in this study, the possibility of predicting cumulative infiltration in specific time intervals, using readily available soil data and artificial neural networks (anns) was investigated. for...