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| 1 | Trace Element Compositions of Pyrite from the Shuangwang Gold Breccias,Western Qinling Orogen,China:Implications for Deep Ore Prediction显示文摘The Shuangwang gold deposit, located in the Fengxian-Taibai fore-arc basin in the western Qinling Orogen of Central China, has yielded over 70 tons of gold. It is an orogenic gold deposit occurring in an NW-trending breccia belt. Most of the ores are hydrothermal breccia type containing fragments of adjacent strata cemented by ankerite and pyrite. Pyrite is the most abundant metallic mineral and the major gold-bearing mineral in the ores. A total of 58 pyrite samples from main ore bodies of the Shuangwang gold deposit have been analysed for 44 trace elements by HR-ICP-MS. Sb, Ba, Cu, Pb, Zn, Bi, Mo, Co are selected as indicator elements to investigate the potential usefulness of trace elements in pyrite as an indicator in gold exploration. The results show that the supra-ore halo elements Sb and Ba, which may have been more active than other near-ore halo elements and sub-ore halo elements, are best to characterize the shape of ore bodies. Five target areas are pointed out for deep ore exploration based on a comprehensive study of supra-ore, near-ore and sub-ore halos. This study provides evidence that trace elements in pyrite can be used to depict the deep extension of ore bodies and to vector towards undiscovered ore bodies. | Jianping Wang Zhenjiang Liu Jiajun Liu Xiangtao Zeng Kexin Wang Bizheng Liu Huan Wang Chonghao Liu Fangfang Zhang | 2018 | Journal of Earth Science2018，29，3： | 3 |
| 2 | Rheological properties and fractal-rheology analysis of peanut protein isolate suspension显示文摘This study focuses on the non-linear rheological property and microstructure of peanut protein isolate(PPI)aggregation suspension.The impact of higher harmonics(I3 and I5)on fundamental stress wave during large amplitude oscillatory shear test was studied.Rheological test show that storage modulus G′and loss modulus G″increased with increasing PPI concentration.The non-linear viscoelastic properties of PPI suspension with different concentration were investigated.Using confocal laser-scanning microscopy method,this research explored the microstructure of PPI suspension as well as the fractal dimensions.The new critical strain indirect method combined with Wu-Morbidelli model to calculate the fractal dimension(2.9225)is very close to the actual fractal dimension(2.9206).Fourier Transform Rheology was adopted to get the new critical strain for fractal dimension calculation,which was proved to be feasible. | Chonghao Bi Shangyi Chi Zhe Hua Dong Li Zhigang Huang Yi Liu | 2020 | International Journal of Agricultural and Biological Engineering2020，13，6： | 1 |
| 3 | Research of Decision System Analysis for Decision Support | LIU Shaojun HAN Chonghao and WAN Baiwu(Institute of Systems Engineering, Xi’an Jiaotong University.Xi’an,P. R.China 710049) | 1994 | Systems Science and Systems Engineering1994，4，4： | 1 |
| 4 | Effects of salt ions on rheological properties of SPI-GG hybrid system显示文摘The rheological characteristic of soy protein isolate(SPI),is one of the most important properties in its application in food industry.The effects of different concentrations of guar gum(GG,polysaccharide)and sodium chloride(salt ion)on the rheological properties of SPI were studied in this research.Steady-state shear,strain sweep and frequency sweep tests(static and dynamic rheological tests)were performed,and the following phenomenon and conclusions were drawn:(1)The viscosity of the hybrid system increases with the GG addition.This trend could also be seen with the appropriate adding of salt ion;(2)As the applied frequency increases,the storage modulus G′and the loss modulus G″of the hybrid system increase at a similar rate.And the frequency sweep parameters of the hybrid system rise significantly with the increase of both GG and ionic concentration;The frequency dependence of the system varies significantly with the addition of salt ion;(3)With the concentration of the salt ion increase,the storage module G′of the hybrid system decrease indicating that salt ion destroyed the network structure of hybrid dispersion to a certain extent. | Bi Chonghao Zhang Yulai Wu Min Ni Zijian Li Gang Liu Yi Li Dong Liu Yude Huang Zhigang | 2017 | International Journal of Agricultural and Biological Engineering2017，10，5： | 0 |
| 5 | Time-averaged sub-layer concentration profiles in oscillatory sheet flows显示文摘Although thin on the order of several to tens of millimeters, sheet flows normally comprise a lower pickup sub-layer and an upper contact-load sub-layer, separated at the bed level(z = 0). The time-averaged concentration profile in the pick-up sub-layer shows a 'convex upward' curvature, but 'concave upward'shape characterizes the time-averaged concentration profile in the contact-load sub-layer. The timedependent concentration in the contact-load sub-layer is approximately in-phase with the free stream flow velocity, whereas it is nearly in anti-phase with the free stream flow velocity, in the pick-up sublayer. Two distinct analytical expressions of the time-averaged concentration profiles for the respective sub-layers are proposed. The expressions are validated with detailed observation datasets collected in the Groper Wellenkanal(GWK) prototype wave flume in Hannover, Germany. The agreement between the predicted and the measured values is excellent. Interparticle collisions in the pick-up sub-layer and convective lifting processes associated with vortex shedding in the contact-load sub-layer are considered responsible for the opposite curvatures and in-phase/anti-phase concentration variations. Both transitional boundary and reference concentration are also elaborated. | Yuhai Wang Wenhong Cao Wen Lu Huifeng Liu Gauhu Sun Chonghao Wang Fei Liu | 2018 | International Journal of Sediment Research2018，33，4： | 0 |
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