نتایج جستجو برای: caesium
تعداد نتایج: 816 فیلتر نتایج به سال:
MALDI mass spectrometry in combination with post-source decay (PSD) analysis is a fast and easy to apply method for peptide sequencing. In this study, the PSD technique was used to investigate the influence of the adaption of one, two, and three caesium cations to angiotensin II in the gas phase. The PSD spectra of caesium-aggregated angiotensin II show far less fragmentation in comparison to t...
Measurements have been made of the relative photoileclric quantum eficiency ?(A) of SbCs3 cathodes of M ith Pyrex and quartz windows, from ~=200-650 mp. ?(A) depends on the window transinittame W(h), the cathode absorbance A(h, d) , the absolute photoelectric quantum efiiciency Qo(h) and the p/1otoelectron escape probability f (A, d). Comparison Irith other data has allowed the separation of th...
In this research work, we report the synthesis of macrocyclic diamides from the reaction of diesters and aliphatic diamines in the presence of caesium carbonate. It has been demonstrated that among the carbonate of alkali metals (Li2CO3, Na2CO3, K2CO3 and CS2CO3), CS2CO3 appear to be the best catalyst for macrocyclization. Diesters with different substitution patterns on the aromatic ring react...
The SPIDER experiment is operating at the ITER Neutral Beam Test Facility PRIMA since June 2018 to study operation of a full ITER-size negative ion source. In order increase extracted current and reduce co-extracted electron current, caesium evaporated inside fact, adsorption Cs onto plasma grid, i.e. first grid extraction system, lowers surface work function, enhancing probability conversion i...
Xenon and caesium are among the most impacting fission products when studying nuclear fuel: xenon for its role on fuel rod thermomechanical behaviour during reactor operation in case of atmospheric radioactive release an accident a power plant. This paper focuses comparison thermal polycrystalline uranium dioxide (UO2) pellets. Caesium-133 or xenon-136 stable isotopes were introduced depleted U...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید