نتایج جستجو برای: reversed turkevich method

تعداد نتایج: 1672222  

Based on the increasing property of ratio of average reversed hazard rates of two non-negative random variables a new stochastic order for the sake of comparison of two lifetime distributions is proposed. This stochastic order admits some distinguishing properties. In order to illustrate the obtained results, a semi-parametric model which is called reverse hazard power and a mixture model of pr...

Journal: : 2021

The article analyzes the specifics of Arnold Schoenberg's creative method. Attention is paid to periodization his work. Schoenberg was not first composer, who invents dodecaphonic technique, but he gave it a complete and logical expression. arrival system certain experiment or coincidence. It part natural process that resulted from gradual transformation composer's worldview. composer in some w...

2010
Evert Slob Roel Snieder Andrew Curtis

In the 1990s, the method of time-reversed acoustics was developed. This method exploits the fact that the acoustic wave equation for a lossless medium is invariant for time reversal. When ultrasonic responses recorded by piezoelectric transducers are reversed in time and fed simultaneously as source signals to the transducers, they focus at the position of the original source, even when the med...

Journal: :Signals 2021

Structural health monitoring problems are studied numerically with the time reversal method (TR). The dynamic output of structure is applied, reversed, as an external loading and its propagation within deformable medium followed backwards in time. Unknown sources or damages can be discovered by means this method, focused reversed signal. theoretically justified time-reversibility wave equation....

2004
Byung-Man Kwak Ki-Woong Lee Jang-Hyuk Ahn Qian Sheng

Rapid and simple method was developed for simultaneous determination of vitamins A and E contents in infant formula. Vitamins A and E were extracted by PDA-HPLC with reversed phase column using organic solvent, and their contents in Certified Reference Material (CRM) and infant formula were determined and compared with results of Food Standards Codex and AOAC method for evaluation of developed ...

Journal: :journal of teaching language skills 2012
ali mohammad fazilatfar shahin ghorbani leial samavarchi

audiovisual material accompanied by interlingual subtitles is a powerful pedagogical tool which can help improve the vocabulary learning of second-language learners. this study was intended to determine whether or not the mode (standard and reversed) of subtitling affects the incidental vocabulary acquisition of iranian l2 learners while watching tv programs. forty-five participants were random...

Journal: :iranian journal of radiology 0
mahdia gholamnejad department of pulmonology, imam khomeini hospital, urmia university of medical sciences, urmia, iran; department of pulmonology, imam khomeini hospital, urmia university of medical sciences, p. o. box: 5715781351, urmia, iran, tel/fax: +98-4413469931 nader rezaie department of pulmonology, firouzgar hospital, iran university of medical sciences, tehran, iran

the reversed halo sign (rhs) may sometimes be seen in patients with cryptogenic organizing pneumonia (cop), but is rarely associated with other diseases. herein, we present a case of a 21-year-old woman with chronic eosinophilic pneumonia, with high resolution computed tomography (hrct) finding of rhs. this is an unusual and rare presentation of chronic eosinophilic pneumonia.

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

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