نتایج جستجو برای: application of heterogeneous photo

تعداد نتایج: 21222719  

رحیمی فروشان, عباس, ریسمانچیان, مسعود, مرتضوی, یداله, پورتقی, غلامحسین, گلبابایی, فریده,

Introduction: Nowadays, in many different fields of chemical agents several experimental researches is being done on volatile organic compounds using gas chromatography, which is time consuming and expensive methods. Photo ionization detector as an alternative method is used by researchers in this field. This feasibility study was conducted to replace the photo ionization detector with gas chro...

In this paper, the novel application of organic/inorganic perovskite hybrid materials isproposed for grid-connected Photo-voltaic (PV) cells. The perovskite hybrid cells attracted a lot of interest due to their potential in combining advantages of both components. Looking to the future, there is no doubt that these new generations of hybrid materials, born from the very fruitful activitie...

Journal: :Current opinion in neurobiology 2005
Aihua Fu Weiwei Gu Carolyn Larabell A Paul Alivisatos

Conventional organic fluorophores suffer from poor photo stability, narrow absorption spectra and broad emission spectra. Semiconductor nanocrystals, however, are highly photo-stable with broad absorption spectra and narrow size-tunable emission spectra. Recent advances in the synthesis of these materials have resulted in the generation of bright, sensitive, extremely photo-stable and biocompat...

حسین قاسم, , محمد‌حسین مهدیه, , نورالدین محمد‌زاده, ,

  Optogalavanic technique has been used widely in laser spectroscopy. In this paper we have presented the results of an experimental three- step photo- excitation of Gd atom, using optogalvanic technique. Three tunable dye laser pulses were applied to excite the Gd atom in a three-step photo – excitation process. The optogalvanic signal was used to monitor the laser wavelength and efficiency of...

The relationship between velocity of chemical reactions with activities or concentrations of their reactants, temperature and pressure and the mechanisms through which the reactions proceed are of interest to many scientists and engineers. The purpose of this article is to introduce a computer software that is developed for calculation, classification and collection of such data. The applicatio...

Journal: :مهندسی برق و الکترونیک ایران 0
m. moulavi-kakhki d. rejaly

in this work the performance of a wavelength division multiple access (wdma) system with direct detection receiver is investigated. for this purpose, the probability of error in a wdma network with ook modulation considering crosstalk, isi, photo detector noise and thermal noise is calculated and the effect of each on system performance is investigated. the system performance in presence of pin...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید