[Using Hybrid Modeling to Examine the Input Flux of Phosphorus and Its Reduction in the Terrestrial Area of Dongting Lake Area].

The study of terrestrial phosphorus inflow （hereafter referred to as phosphorus inflow） fluxes is essential for controlling non-point source （NPS） pollution. The SWAT model was successfully used to simulate phosphorus inflow fluxes in the Dongting Lake area, while a hybrid model （LSTM and SWAT） was developed and validated for predicting the reduction in phosphorus inflow fluxes among rivers based on three typical reduction scenarios： agricultural control, livestock and poultry reduction, and soil and water conservation measures. The results showed that the inflow flux of TP was 3.

Osseous Rosai-Dorfman disease of tibia in children: A case report.

Background: Rosai-Dorfman disease (RDD), or sinus histiocytosis with massive lymphadenopathy, is a benign histiocytic disorder. Extranodal involvement is common, occurring in > 40% of patients, but bone involvement occurs in < 10% of cases. In addition, primary bone RDD is extremely rare.

Fuzzy Multi-SVR Learning Model for Reliability-Based Design Optimization of Turbine Blades.

The effectiveness of a model is the key factor of influencing the reliability-based design optimization (RBDO) of multi-failure turbine blades in the power system. A machine learning-based RBDO approach, called fuzzy multi-SVR learning method, was proposed by absorbing the strengths of fuzzy theory, support vector machine of regression (SVR), and multi-response surface method. The model of fuzzy multi-SVR learning method was established by adopting artificial bee colony algorithm to optimize the parameters of SVR models and considering the fuzziness of constraints based on fuzzy theory, in respect of the basic thought of multi-response surface method.

[Arsenic Content and Speciation in the Surficial Sediments of Liangshui River in Beijing].

Arsenic (As) content and speciation in the surface sediments of the typical urban river ( Liangshui River) with unconventional water sources in Beijing were investigated by different methods, including BCR three-step sequential extraction procedure, enrichment factor (EF), risk assessment code (RAC) and sediment quality guidelines (SQGs). The results showed that total As contents in the surface sediments ranged from 2.18 mg x kg(-1) to 22.

[Research of the Stormwater Runoff and Pollution Characteristics in Rural Area of Yuhang District, Hangzhou].

In order to investigate the pollution characteristics of stormwater runoff in the southern developed rural region, the runoff samples were collected from four different underlying surfaces during three storm events in Caoqiao and Pujia Tou, which are two typical villages and are located in Yuhang District of Hangzhou. The content of nutrition (nitrogen and phosphorus) and heavy metals (Mn, Cu, Zn, Ni, Cr, Cd, As, Pb) in the simples were analyzed, and the difference of EMC ( event mean concentration) and pollution load of the contaminants in the runoff on different underlying surfaces were compared. The results showed that the EMC of TSS, COD, NH4(+)-N, TP and TN were 16.

[Characterization and optimization of the NaOH-EDTA extracts for solution 31P-NMR analysis of organic phosphorus in river sediments].

Optimization and mechanism of NaOH-EDTA extraction solutions were studied in phosphorus (P) pollution river sediments, which were Fe, Al-rich sediment, by solution 31P nuclear magnetic resonance spectroscopy (31P-NMR). Different proportions of NaOH and EDTA showed different extraction efficiency on total P (TP) and organic P (Po) in the sediment. The concentration of Po in NaOH + EDTA extract was higher than that in NaOH extract.

[Construct of Yangtze-Huai River rural areas ecological drainage system and its retention effect on pollutants].

Ecological drainage system (EDS) including ditches, ponds and wetland was constructed at the Paifangchen village on the north of Chaohu Lake, Anhui, and its retention effect on pollution was investigated. With the comprehensive function of sewage discharge, collecting and process, the system could intercept runoff pollutants effectively. The results acquired from 3 rainfall events showed that the retention rates of EDS to TSS, COD, TP and TN were 78.

[Heavy metals distribution and risk assessment of sediments in the riverine wetland of Sanmenxia Reservoir].

The survey for contents and fractions of heavy metal in sediments of riverine wetland in Sanmenxia Reservoir were carried out. Sediment pollution index was applied to assess the potential ecological risk and mass fraction of heavy metal in surface sediment was conducted for release risk assessment. The results showed that the total concentrations of Cr, Ni, Cu, Zn, Cd and Pb ranged in 25.

[Temporal and spatial variation of nitrogen and phosphorus and eutrophication assessment in downstream river network areas of North Canal River Watershed].

Based on the water quality survey for one year in the downstream river network areas of North Canal River Watershed, variation features of inorganic nitrogen (N) and phosphorus (P) were analyzed, and water eutrophication degree of river network areas was also assessed. The results showed that the average concentration of TN was 12.50 mg x L(-1) (NH4(+)-N, 67.

[Studies on the properties and co-immobilization of manganese peroxidase].

White-rot fungus manganese peroxidase (MnP) oxidizes a wide range of substrates, rendering it an interesting enzyme for potential applications. The stability of MnP can be improved by immobilization. With sodium alginate, gelatin, or chitosan as a carrier, and glutaraldehyde as the crosslinking agent, MnP was co-immobilized using the embed-crosslinked method and the adsorb-crosslinked method.