The Wan-An Fault and its Relationship with the Wan-An Basin, Western South China Sea

Abstract

The

Optimization and comparison of linear transverse flux and flux switching machines

“…All rotary components, such as the crankshaft and connecting rods, are eliminated from the machine and it is hoped this has the potential to produce low mass, high efficiency generation devices. A number of alternative linear machines have been investigated for this application, including tubular permanent magnet [2,3] and transverse flux [4]. The 3.8 kW free piston engine presented in [5] is used to derive a specification upon which the machine topologies considered here can be evaluated.…”

A new bis(rhodamine)-based colorimetric chemosensor for Cu2+

“…Optical and colorimetric detection of metal ions is important as it is quite simple over the other detection techniques such as atomic absorption spectroscopy (AAS), Inductively coupled plasma mass spectrometry (ICP-MS) and cyclic voltammetry (CV) [5,6]. Compared with traditional analytical methods, colorimetric methods can be achieved by ultraviolet visible (UV-Vis) absorption spectra with advantages such as easy operation and recognition, which can be used for on-site tests [7]. Rhodamine B derivatives have received a great deal of attention as chemosensors with useful properties such as: good solubility, low cytotoxicity, photostability, high absorption coefficient, and high fluorescent quantum yield [7,8].…”

“…Compared with traditional analytical methods, colorimetric methods can be achieved by ultraviolet visible (UV-Vis) absorption spectra with advantages such as easy operation and recognition, which can be used for on-site tests [7]. Rhodamine B derivatives have received a great deal of attention as chemosensors with useful properties such as: good solubility, low cytotoxicity, photostability, high absorption coefficient, and high fluorescent quantum yield [7,8]. Moreover, rhodamine B derivatives can undergo equilibrium between their spirocyclic and ring-open forms, which have completely different optical properties [10][11][12][13][14].…”