Field investigations, petrology, geochemistry, zircon U-Pb geochronology and Hf isotope analysis were performed to investigate the petrogenesis of Ningjiawan pluton, in an attempt to shed light on its geodynamic significance. LA-ICP-MS zircon U-Pb dating from two samples yielded ages of 2364±6 Ma (MSWD=0.13) and 2360±23 Ma (MSWD=4.0) respectively, indicating that the magma emplaced and crystalized in Paleoproterozoic. The pluton contains high concentrations of alkaline, K and Si, had elevated FeO^T/MgO ratios and high field strength element (HFSE) contents, was enriched in Rb, Ba, Th and U elements, was depleted in Ca, Mg, P and Ti, and possessed a “seagull-type” chondrite-normalied REE pattern with significantly negative Eu anomalies (δEu=0.13−0.36) and enrichment in the LREE relative to the HREE, exhibiting the traits of the highly fractionated Itype granite. Relatively high whole-rock Y/Nb values (1.2−2.8), together with positive ε_Hf(t) values (+1.6−+6.4), and t_DM1(Hf) and t_DM2(Hf) ages of 2449−2629 Ma and 2474−2711 Ma respectively on the zircon grains, signified that they were products derived from magma mixing between crust and depleted mantle sources. Moreover, distinctive negative Nb, P and Ti anomalies and positive Ce, Nd and Zr anomalies, characteristics of continental margin arc, combining with the regional geological background, indicate that Ningjiawan pluton is very likely to form in island arc setting.

Existing sentiment analysis focus on the emotional tendency, which are lack of detailed description of all kinds of emotions, they can’t intuitively reflect the emotional change of social groups. An emotional analysis method based on the combination of dependency parsing and artificial tagging was proposed. Facial expression animation to present emotions analysis was realized. The microblog crowd’s emotion in different areas for different social events was visualized. The experimental results show that the model could closely and effectively simulate the crowd emotion, and it could provide a new way of the analysis of network public opinion based on large data.

In order to avoid the drawback of the traditional ICP (iteration closest point) method for co-registration, a non-linear least squares co-registration model is proposed, which is based on minimizing the sum of squares of the Euclidean distances between two overlapped surfaces. The experiments demonstrate that the proposed method can be used for the co-registration of cloud points collected by the airborne laser scanner, and the experimental results are comparable with those of traditional methods. The experimental results imply that the proposed method has a good performance for transformation parameters estimation in 3D point clouds co-registration procedure. Especially, the non-linear co-registration method can achieve the best estimated value with only 6 to 7 iteration time. It is much faster than traditional method in practice, and can be treated as an extension for traditional co-registration theory of iteration closest point in the field of computer vision.

Applying lead/lag correlation analysis on Sea Surface Temperature (SST) in different regions, the main reasons that cause the Western Pacific SST anomaly were investigated. Based on the theories of Pacific-East Asian teleconnection and Indian Ocean capacitor effect, the pointwise maximum correlation of SST anomaly in the Western Pacific with that in the Eastern Pacific and the Tropical Indian Ocean was analyzed, as well as the corresponding lead-lag time (in month). According to the mechanisms mentioned above, the SST variations of the Eastern Pacific or the Tropical Indian Ocean are expected to lead SST variations of Western Pacific by 2?3 months as the response time of ocean is very long. The results show that the SST anomaly in the Western Pacific leads the Eastern Pacific by 1?2 months (under the conditions of both El Nino and La Nina) and leads the Tropical Indian Ocean by 3?4 months. This indicates that neither the Eastern Pacific nor the Indian Ocean is the main reason that causes the SST anomaly of the Western Pacific. The reason that causes SST anomaly of the Western Pacific is very complicated and may be caused by many different factors.

Electrochemical performances of Mn-series power batteries produced by MGL were studied, and compared with LiFePO₄ power batteries of other companies. The results indicate that the high capacity and high power batteries with spinel LiMn₂O₄ and multi metal oxides as cathode materials not only have high voltage, high energy density, good high and low temperature properties, excellent rate of charge and discharge, stable thermal performance, but also show the linear of state of charge-open-circuit voltage (SOC-OCV) relationship, and then the battery manage system (BMS) can be easily controlled. Therefore, Mn-series power batteries will be the important direction for future power batteries.

With the aid of theory of landscape ecology, analysis of traj ectories and assessment of ecosystem service, this paper takes the water body in Shenzhen as the research object, analyzing the dynamic process of water body fragment and the corresponding changes of the ecosystem service. The results show that: 1) the process of water body fragment is so clear that the shrink of water body is the main characteristic. During 2000 and 2006, rivers became segment and channelization, pond and wetland were shrinking. In addition, the processes of fragment are different between each kind of water body. 2) The endpoint of the trajectories of change of water is developed land, and the changing process from water to developed land impose the trend of fragmentation and shrinking. 3) Water fragmentation restricts the ecological service. The direct service value increases continuously, while the indirect service value decreases, which leads to the increase of the proportion of the direct service value.

A novel encoding scheme with high speed and low power is proposed for folding and interpolating ADC. In the encoder,XOR-OR encoding algorithmand a novel serial-parallel Domino circuit are adopted. A novel method for wide-range error correction and bit synchronization is presented. Simulation results show that the proposed encoder has about 56% decrease on power delay product compared to conventional ROMencoder and this encoder is more applicable for the folding and interpolating ADC with higher resolution.

Magnetic reconnection is considered to be of crucial importance not only to space science but also to magnetically confined fusion,as well as many basic processes in astrophysics and cosmology. In general, except on a closed field line, three, dimensional (3D) magnetic reconnection occurs on the separator connecting magnetic nulls and separatrices, which are determined by the eigenvectors of the magnetic field gradient matrixes of the null pair. Due to the 3D geometric property, the null can only be detected by an at least 4, point measurement so far uniquely provided by the Cluster mission. Here the authors review the recent progresses in applying the Poincare method of magnetic null identification to find out: (1) the in situ evidences of four types of nulls (A, B, As and Bs) and their fans and spines; (2) the spatial scale of the spine structure of the null being of the order of local ion inertial length scale, suggesting that the Hall effect should be important in 3D reconnection dynamics; (3) the in situ evidence for the existence of A, B, B, As null pairs and the separator lines combining the null pairs; and (4) the existence of a lower hybrid oscillation in the immediate vicinity of the A, B separator line, which provides a possible mechanism for electron heating and acceleration in the reconnection process. It is the first in situ evidence for complete 3D reconnection geometry and associated dynamics, a crucial step toward to establish an observational framework of 3D reconnection.

Li-ion battery management system was designed to guarantee the safe operation of the battery system during the charging and discharging process. Battery voltage, temperature and current could be detected precisely with special hardware. Raw data and results of electric motor were discussed and analyzed. The system was endured for 5thousandkm in real usage.

Organic content, total nitrogen, total phosphorus, lead, cadmium, chromium, mercury and arsenic in the sediments of Chaohu Lake are investigated. The vertical distributions of pollutants in sediment are discussed. The potential ecologic risk index is used to evaluate metal pollution in sediment of Chaohu Lake. The correlative characteristics between organic content and other pollutants are analyzed. The linear equation between organic contents and total nitrogen is y=0.0676x+0.0952 with 0.985 of correlation coefficient.

Intraductal (common bile duct or intrahepatic duct) gallstones were rather prevalent in Asia and Taiwan. Comparing composition difference among central cores, rims and peripheries is help full to determine etiology in the process of stone nidation. Twenty sets of intraductal stones, including black pigment stone (n=2) and brown pigment stones (n=18), were quantitated by Infrared Spectroscopy. In brown pigment stones, 12 sets of stones presented rim structure (rim stones) with cholesterol content in 5 cases but without cholesterol in 7 cases, and other 6 stones showed muddy appearance. Comparing compositions of brown pigment intraductal rim stones, the median content of calcium bilirubinate always presents peripheries>rim>central core with or without cholesterol content (core vs. peripheries, P<0.05). The distribution of calcium palmitate shows central core>rim>peripheries in rim stones without cholesterol (core vs. peripheries, P<0.05), or in rim stones with cholesterol (core vs. peripheries P>0.05. The median cholesterol content in rim stones with cholesterol content showed central core>rim without significance (P>0.05). The same significant difference of calcium bilirubinate and palmitate contents also present between central core of rim stones and muddy stones (P<0.05). From brown pigment stones, central core contains a significantly larger amount of calcium palmitate representing bacterial infection as a major pathological factor in early nidation of stone formation. On the contrary, calcium bilirubinates always significant present in peripheries and rims of rim structure stones and muddy stones, representing bile stasis as a important factors during stone growth.

The substituted Pyrrolidone is key public intermediate for synthesis of new drugs of mental performance enhancer. In this paper, we reported a simple and convenient method of synthesis for target moleculars. The structures of theis interconversion isomerides, dimers and relative compounds have been characterized and discussed.

Sufficient conditions have been obtained for oscillation and nonoscil-lation of solutions of a class of nonlihear differential equations with piecewise constant arguments, which generalize some results of the literature.