[Determination of Wine Varieties with NIR and Fusion of Multiple Classifiers].

The conventional qualitative analysis of near infrared spectroscopy (NIR) commonly uses one single classification model. This paper focused on the fusion of multiple classifiers based on different single classifiers by using the fused classifier to determine different varieties of red-wines. NIR spectra of 170 red-wine samples were collected by using Fourier transform near-infrared spectrometer.

[Distribution of soil organic carbon in surface soil along a precipitation gradient in loess hilly area].

Along the 368-591 mm precipitation gradient, 7 survey sites, i.e. a total 63 investigated plots were selected.

[Study on the Analysis of the Proportion of Mixed Samples with Near Infrared Spectroscopy and Non-Negative Coefficients Regression].

In the process of practical production, it is important to accurately analyze the proportion of mixed samples with high speed, which plays a great role for quality control and formulation design in food and agricultural processing. Traditional solution is to build statistical model with a large number of representative samples, which is both labor-intensive and time-consuming. In this paper, the proportion of alcohol and acids mixed samples, and their dilute solution mixed samples(used carbon tetrachloride (CCl4) which has no near-infrared absorption characteristics as the solvent medium)，as well as sheet tobacco leaf mixed samples are respectively analyzed by using near infrared spectroscopy, SG smooth and non-negative coefficients regression, which verifies the feasibility of analyzing the proportion of the mixed samples.

Effects of sodium tanshinone II A sulphonate on hypoxic pulmonary hypertension in rats in vivo and on Kv2.1 expression in pulmonary artery smooth muscle cells in vitro.

Aim Of The Study: To investigate the effect of sodium tanshinone IIA sulphonate (STS), a water-soluble derivative of tanshinone II A, on hypoxic pulmonary hypertension (HPH) in rats and its underlying mechanisms.

Materials And Methods: Rats were exposed to hypoxia for two or three weeks, pretreated with or without STS. We detected mean pulmonary arterial pressure (mPAP), the ratio of right ventricle weight to left ventricle with septum weight [RV/(LV+S)], wall thickness and voltage-activated potassium channel (Kv) 2.

[Study on relativity of hypoxic pulmonary hypertension with levels of endothelin-1 and vascular endothelial growth factor in plasma of pulmonary artery and carotid artery].

Aim: To study the effects of endothelin-1 (ET-1) and vascular endothelial growth factor (VEGF) on the mechanism of hypoxic pulmonary hypertension (HPH).

Methods: We studied 4 groups of age-controlled male rats, i.e.