Numerical Simulation of Wave Drag during Downslope Windstorms in Different Regions of Russia
RUSSIAN METEOROLOGY AND HYDROLOGY
Authors: Shestakova, A. A.
Abstract
The wave drag is considered for downslope windstorms in Novorossiysk, on Novaya Zemlya, and in Pevek. The research is based on the results of numerical simulation with the WRF-ARW model. Special attention is paid to the evaluation of the contribution that wave processes make to the overall dynamics of the phenomenon (based on the ratio of wave and orographic drag) and to the specific features of wave drag for different downslope windstorms.
BODIPY-derived piperazidine fluorescent near-neutral pH indicator and its bioimaging
SENSORS AND ACTUATORS B-CHEMICAL
Authors: Deng, Min; Yang, Chengduan; Gong, Deyan; Iqbal, Anam; Tang, Xiaoliang; Liu, Weisheng; Qin, Wenwu
Abstract
Two new 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dyes (1 and 2) with piperazine subunits on position 3 or 5 were synthesized. Their absorption and steady-state fluorescence properties were investigated as a function of solvent. In water/MeCN (9:1, V/V) solution, the dyes show fluorescent enhancement upon increasing the acidity of the solution. They can be used in water/MeCN (9:1, V/V) solution as fluorescent pH probes excitable with visible light, with pK(a) values near-neutral (around 6.5 and 6.8). Dyes 1 and 2 are readily taken up by biological cells in the cytosol where it has no obvious toxic effects. (C) 2016 Elsevier B.V. All rights reserved.
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