Ning-Ning Zhang

Learn More
This paper focuses on the problem of designing H∞ filters for nonlinear systems with time-varying delay via Takagi–Sugeno (T–S) fuzzy models. Some new results on H∞ filter design are proposed by estimating the upper bounds of the derivatives of Lyapunov functionals without ignoring some useful terms, which improve the existing ones. In addition, a(More)
BACKGROUND This study aimed to elucidate clinical significance of anaplastic lymphoma kinase (ALK) rearrangement in selected advanced non-small cell lung cancer (NSCLC), to compare the application of different ALK detection methods, and especially evaluate a possible association between ALK expression and clinical outcomes in crizotinib-treated patients. (More)
Accurate determination of anaplastic lymphoma kinase (ALK) rearrangements is critical in identifying ALK-positive patients for targeted therapy in non-small-cell lung cancer (NSCLC). Fluorescence in situ hybridization (FISH) is the current standard method to detect ALK rearrangements but is technically challenging and costly. We compared optimised(More)
OBJECTIVE To develop a quantitative method for the determination of four flavonoids in buds of Herba Artemisiae Scopariae. METHOD The sample was extracted by ultrasonic with ethyl acetate for 30 minutes and separated on kromasil ODS column with mobile phase of acetonitrile-tetrahydrofuran-1% acetic acid solution (2.5:21.5:76) and detection wavelength was(More)
The carbonaceous aerosol concentrations in coarse particle (PM10: Dp ≤ 10 μm, particulate matter with an aerodynamic diameter less than 10 μm), fine particle (PM2.5: Dp ≤ 2.5 μm), and ultrafine particle (PM0.133: Dp ≤ 0.133 μm) carbon fractions in a rural area were investigated during haze events in northwestern China. The results indicated that PM2.5(More)
The tobacco whitefly B-biotype Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) is a worldwide pest of many crops. In China, chlorpyrifos has been used to control this insect for many years and is still being used despite the fact that some resistance has been reported. To combat resistance and maintain good control efficiency of chlorpyrifos, it is(More)
OBJECTIVE To investigate the chemical constituents in flower bud of Artemisia scoparia. METHOD The constituents were isolated and purified by means of various chromatographic methods, and spectroscopic methods were used to identify their structures. RESULT Four flavones were isolated and their structures were identified as hyperin (V), eupafolin (VI),(More)
Gold nanorods are excellent anisotropic building blocks for plasmonic chiral nanostructures. The near-infrared plasmonic band of nanorods makes them highly desirable for biomedical applications such as chiral bioimaging and sensing, in which a strong circular dichroism (CD) signal is required. Chiral assemblies of gold nanorods induced by self-associating(More)
According to the different altitudes precipitation samples in Yulong Snow Mountain area in Yunnan Province from July 26 2005 to July 31 2005, the precipitation chemical characteristics of different altitudes were analyzed with the sea salt iron tracer analysis method. Sea salt tracer analysis showed that Cl-, Na+ had high proportion marine source, amounting(More)
N,N'-Disubstituted bipyridinium (viologen) and N-monosubstituted bipyridinium compounds are well known for their electron-transfer (ET) photochromic behavior. Their modification has exclusively focused on the N-substituents to date. For the first time, we have studied the photochromic behavior when one pyridyl ring of the bipyridinium is substituted with a(More)