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Linfen, China

Shanxi Normal University was formerly called Shanxi Teachers University is a university in Linfen, Shanxi, China under the authority of the provincial government. Famed teachers include the notable law professor Lin Li.Shanxi Normal University has nearly 20,000 students on three campus in Linfen, Shanxi, China. The best departments in the school are the English Department and the Chemistry Department. The school celebrated its 50th anniversary in 2009.Originally just a 'teacher's' university, the school has branched out and now had more than 60 institutes and majors of study. Wikipedia.


Chen J.-K.,Shanxi Normal University
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2012

We employ the Nyström method with the extended Simpson's rule to solve numerically the Schrödinger equation in momentum space with the screened Cornell potential. Two peculiar phenomena, furcation and deviation of the first point, occur in the obtained eigenfunctions. By applying the Landé subtraction method to remove or relieve the singularities in the integrands, the furcation phenomenon disappears, the deviation of the first point is weakened, and the obtained eigenvalues have high accuracy. © 2012 American Physical Society. Source


Polydimethylsiloxane-poly(ethylene oxide) (PDMS-PEO) has been successfully used as the co-template to prepare ordered mesoporous polymer-silica and carbon-silica nanocomposites with diverse mesostructures by using Pluronic F127 or P123 as main templates and phenolic resol polymer as a carbon precursor via the strategy of evaporation-induced self-assembly (EISA). The structures of resulting mesoporous materials have been characterized by small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and nitrogen-sorption measurements. Experiments show that the ordered mesoporous polymer-silica and carbon-silica nanocomposites of two-dimensional hexagonal (p6m) and body-centered cubic ( $$ Im\bar{3}m $$ ) mesostructure have been achieved. A novel lamellar polymer-silica mesostructure stable up to 350 °C calcination is also obtained. Higher hydrophobicity of PDMS than PPO is believed to be the key factor that influences the swelling of F127 micelles and their further self-assembly behaviors into ordered mesostructures, resulting in different symmetries of the mesostructures. Surfactant removal and subsequent carbonization creates ordered mesoporous polymer-silica and carbon-silica nanocomposites, respectively. This simple one-pot route provides a pathway for large-scale convenient synthesis of polymer-silica and carbon-silica nanocomposites. © 2010 Springer Science+Business Media, LLC. Source


Zhao L.,Shanxi Normal University
Complex Analysis and Operator Theory | Year: 2014

This paper characterizes unitary weighted composition operators and their spectrum on the Fock space of (Formula presented.). © 2013, Springer Basel. Source


Wang C.,Shanxi Normal University
IET Control Theory and Applications | Year: 2013

The bounded real lemma for positive discrete time-invariant systems is addressed in this study. The results about bounded real lemma for continuous time-invariant systems are extended into discrete time-invariant systems. Such systems are asymptotically stable and their H∞ norm less than one is equivalent to that the corresponding linear matrix inequality admits a diagonal positive-definite solution. The last example in this study illustrates the result does not hold for general discrete time-invariant systems. © The Institution of Engineering and Technology 2013. Source


A simple, sensitive and rapid flow-injection chemiluminescence (CL) method has been developed for the determination of indole derivatives including indole-2,3-dione (isatin) and indole-3-acetic acid (IAA), based on the increased CL reaction of potassium permanganate-formaldehyde system in acidic medium. Strong CL was observed when the indole derivatives were injected into the acidic potassium permanganate solution in a flow-cell. Under the optimum conditions, the linear range of the determination was 0.1-100.0 μM for isatin and 0.01-10.0 μM for IAA. The detection limit (3σ) was 10.0 nM for isatin and 1.0 nM for IAA. The method has been successfully applied to the determination of isatin in biological samples and of IAA in biological samples and soil extracts with satisfactory results. © Springer-Verlag 2009. Source

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