نتایج جستجو برای: liquid solution

تعداد نتایج: 667162  

Journal: :The Review of scientific instruments 2013
Oscar R Enríquez Christian Hummelink Gert-Wim Bruggert Detlef Lohse Andrea Prosperetti Devaraj van der Meer Chao Sun

We have designed and constructed an experimental system to study gas bubble growth in slightly supersaturated liquids. This is achieved by working with carbon dioxide dissolved in water, pressurized at a maximum of 1 MPa and applying a small pressure drop from saturation conditions. Bubbles grow from hydrophobic cavities etched on silicon wafers, which allows us to control their number and posi...

Journal: :Chemical reviews 2017
Tatu Kumpulainen Bernhard Lang Arnulf Rosspeintner Eric Vauthey

Ultrafast photochemical reactions in liquids occur on similar or shorter time scales compared to the equilibration of the optically populated excited state. This equilibration involves the relaxation of intramolecular and/or solvent modes. As a consequence, the reaction dynamics are no longer exponential, cannot be quantified by rate constants, and may depend on the excitation wavelength contra...

2001
H. Fan Y. X. Gao

Microscale contact between two solid surfaces induced by the liquid-bridging force is studied in the present article. Attention is focused on the interaction between the size of the contact area and the magnitude of the liquid-bridging force. The liquid-bridging force is related to the contact size and the other parameters, such as the filling angle, the contact angles, and the surface tension ...

2018
Shulan Lv Rui Wang Qi Wang Lu Han Xiaoqian Tuo Huilian Hou Yu Liu Zan Shi Qing Wang Yan Li Chao Sun Xue Xue Qiling Li

OBJECTIVE Early detection and diagnosis of endometrial carcinoma and precancerous change would undoubtedly become the most alluring part for researchers. With the emergence of endometrial brush samplers, a new upsurge in endometrial cytology is in the making. But endometrial specimens obtained by the endometrial brush samplers require special preservation solution. The objective of this study i...

Journal: :Physical chemistry chemical physics : PCCP 2015
David A Beattie Sarah L Harmer-Bassell Tracey T M Ho Marta Krasowska John Ralston Pasindu M F Sellapperumage Patryk Wąsik

Gold was exposed to ethanol solutions containing 0.1 wt% 1-hexyl-3-methyl-imidazolium bis(trifluoromethanesulfonyl)imide (HMIM NTf2), an ionic liquid (IL). The resulting adsorbed layers were interrogated using X-ray photoelectron spectroscopy (XPS - both conventional and synchrotron-based) and spectroscopic ellipsometry. Ellipsometry indicated that the adsorbed layer thickness was smaller than ...

1963
D W Swan

The drift velocity of electrons has been measured in liquid argon and in liquid argon containing nitrogen, oxygen and hydrogen as impurities. It has been found that with nitrogen and hydrogen in solution the drift velocity increases, but that, because of strong electron attachment, inSui3cient oxygen could be added to produce an observable effect. The results support the view that the behaviour...

2007
ROBERT E. DAVIS

Field trials of the dilution technique for measuring snow liquid water content show that the refined procedure is rapid and simple. Measurements of the liquid water mass fraction with an absolute error of --• 1.5% can be obtained by one operator at a rate of 10-15 samples per hour, but if the water content is low (0-2%), the relative error can be high. Electrolytic conductivity is the preferred...

Journal: :The Journal of chemical physics 2006
Being J Ka Eitan Geva

Nonlinear spectroscopic signals in liquid solution were calculated without treating the field-matter interaction in a perturbative manner. The calculation is based on the assumption that the intermolecular degrees of freedom can be treated classically, while the time evolution of the electronic state is treated quantum mechanically. The calculated overall electronic polarization is then resolve...

2001
Lieven M. K. Vandersypen James S. Harris Isaac L. Chuang Yoshihisa Yamamoto

Quantum computation offers the extraordinary promise of solving mathematical and physical problems which are simply beyond the reach of classical computers. However, the experimental realization of quantum computers is extremely challenging, because of the need to initialize, manipulate and measure the state of a set of coupled quantum systems while maintaining fragile quantum coherence. In thi...

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