Qing-hai Wang

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--The deposition of particles in fully-developed turbulent channel flow has been calculated using large eddy simulation of the incompressible Navier-Stokes equations. Calculations were performed for Reynolds numbers of 11,160 and 79,400 (based on bulk velocity and hydraulic diameter); subgrid-scale stresses were parameterized using the dynamic eddy(More)
Foundering of mafic lower continental crust into underlying convecting mantle has been proposed as one means to explain the unusually evolved chemical composition of Earth's continental crust, yet direct evidence of this process has been scarce. Here we report that Late Jurassic high-magnesium andesites, dacites and adakites (siliceous lavas with high(More)
(GAs) and indole-3-acetic acid (IAA) in the control of longitudinal and cambial growth in current-year shoots of Pinus sylvestris L. Elongating terminal shoots, located at the apex of previous-year (1-year-old) branches in the uppermost whorl on the main stem, were variously decapitated (apical 5 to 10 mm removed), defoliated (all developing needle(More)
Because of the limited battery power of wireless sensor network node, energy conservation is a key issue. This paper improves LEACH algorithm. Through taking into account the energy state and one-hop neighbor nodes of nodes, the improvement algorithm optimizes cluster head selection, and effectively reduces the possibility that the low energy or poor(More)
Under a general framework, shortcuts to adiabatic processes are shown to be possible in classical systems. We study the distribution function of the work done on a small system initially prepared at thermal equilibrium. We find that the work fluctuations can be significantly reduced via shortcuts to adiabatic processes. For example, in the classical case,(More)
Two-dimensional PT-symmetric quantum-mechanical systems with the complex cubic potential V 12 = x 2 + y 2 + igxy 2 and the complex Hénon-Heiles potential V HH = x 2 + y 2 + ig xy 2 − x 3 /3 are investigated. Using numerical and perturbative methods, energy spectra are obtained to high levels. Although both potentials respect the PT symmetry, the complex(More)
Quantum mechanics and classical mechanics are distinctly different theories, but the correspondence principle states that quantum particles behave classically in the limit of high quantum number. In recent years much research has been done on extending both quantum and classical mechanics into the complex domain. These complex extensions continue to exhibit(More)
Bladder cancer (BC) is a common aggressive malignancy and Urothelial bladder cancer (UBC) consists of the majority of BC. There is uncertainty regarding the clinicopathologic characteristics of UBCs in younger patients. To investigate the clinicopathologic features of young patients with UBCs. A total of 2825 pathological records of UBC patients, including(More)
OBJECTIVES To investigate the safety and efficacy of yangxinkang tablets in patients with chronic heart failure (CHF) and syndrome of qi and yin deficiency, blood stasis, and water retention. METHODS In a double-blinded, randomized, placebo-controlled, multicenter clinical trail, 228 patients with CHF New York Heart Association (NYHA) class II or III in(More)
BACKGROUND Bladder cancer (BC) is the second leading malignant tumors of the genitourinary system. CA 19-9 has served as a diagnostic and prognostic marker for pancreatic carcinoma for years. In recent year, although a few studies have evaluated the roles of CA 19-9 in BC, the results are conflicting and the number of the patients studied is very small. (More)