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| 1 | Discovery and preliminary study of the high tungsten and lithium contents in the Dazhuyuan bauxite deposit, Guizhou, China显示文摘Bauxite in China remains an urgently needed resource largely dependent on imports. Based on the study of the newly-discovered Dazhuyuan bauxite deposit in northeastern Guizhou, we have found new enrichment of tungsten and lithium in bauxite, with the highest WO 3 content up to 0.33% and the highest Li 2 O content up to 0.58%. The present paper reports the initial result, and the spatial distribution feature of W and Li in the ore body (with Li enriched mostly in the north part of the west limb of the Liyuan syncline, whereas W enriched mostly in the central part of the east limb). The results suggest that it is necessary to delineate lithium and tungsten ore body independently, discuss the feasibility of its industrial utilization, and point out the new direction of synthetic appraisal for such kinds of traditional mineral resources, in order to forecast and assess bauxite resources in the region. | WANG DengHong LI PeiGang QU WenJun YIN LiJuan ZHAO Zhi LEI ZhiYuan WEN ShenFu | 2013 | Science China Earth Sciences2013，56，1： | 16 |
| 2 | Au plasmon enhanced high performance β-Ga_2O_3 solar-blind photo-detector显示文摘Surface plasmon polariton(SPP) is electro-magnetic wave coupled to free electron oscillations near the surface of metal, and has been used to improve the photoelectric properties in many optoelectronic devices. In the present study, the Au nanoparticles(NPs)/β-Ga_2O_3 composite thin film was fabricated through depositing Au ultra-thin film on the β-Ga_2O_3 thin film followed by post-thermal treatment. Compared to bare β-Ga_2O_3 thin film, a significant absorption around 510 nm, which is attributed to SPP of Au NPs, was observed in the UV–vis spectrum of Au NPs/β-Ga_2O_3 composite thin film. The results showed that the photoresponse of Au NPs/Ga_2O_3 photodetector illuminated under 254 nm +532 nm light was much higher than that illuminated under 254 nm light, indicating an enhancement of photoelectric property for the solar-blind photodetector based on β-Ga_2O_3 thin film. | Yuehua An Xulong Chu Yuanqi Huang Yusong Zhi Daoyou Guo Peigang Li Zhenping Wu Weihua Tang | 2016 | Progress in Natural Science:Materials International2016，26，1： | 5 |
| 3 | Detection of EBV and HHV6 in the Brain Tissue of Patients with Rasmussen's Encephalitis显示文摘Rasmussen's encephalitis (RE) is a rare pediatric neurological disorder, and the exact etiology is not clear. Viral infection may be involved in the pathogenesis of RE, but conflicting results have reported. In this study, we evaluated the expression of both Epstein-Barr virus (EBV) and human herpes virus (HHV) 6 antigens in brain sections from 30 patients with RE and16 control individuals by immunohistochemistry. In the RE group, EBV and HHV6 antigens were detected in 56.7% (17/30) and 50% (15/30) of individuals, respectively. In contrast, no detectable EBV and HHV6 antigen expression was found in brain tissues of the control group. The co-expression of EBV and HHV6 was detected in 20.0% (6/30) of individuals. In particular, a 4-year-old boy had a typical clinical course, including a medical history of viral encephalitis,intractable epilepsy, and hemispheric atrophy. The co-expression of EBV and HHV6 was detected in neurons and astrocytes in the brain tissue, accompanied by a high frequency of CD8?T cells. Our results suggest that EBV and HHV6 infection and the activation of CD8?T cells are involved in the pathogenesis of RE. | Dong Liu Xin Wang Yisong Wang Peigang Wang Dongying Fan Sichang Chen Yuguang Guan Tianfu Li Jing An Guoming Luan | 2018 | Virologica Sinica2018，33，5： | 4 |
| 4 | Elevated expression of EBV and TLRs in the brain is associated with Rasmussen's encephalitis显示文摘Rasmussen's encephalitis(RE) is a rare pediatric neurological disorder, the etiology of which remains unclear. It has been speculated that the immunopathogenesis of RE involves damage to neurons, which eventually leads to the occurrence of RE. Viral infection may be a critical factor in triggering RE immunopathogenesis. In this study, we analyzed the expression of Epstein-Barr virus(EBV) antigens as well as of Toll-like receptor 3(TLR3), TLR9, and downstream adapter TIRdomain-containing adapter-inducing interferon-β(TRIF) in the brain tissues of 26 patients with RE and 16 control individuals using immunohistochemistry(IHC). In the RE group, EBV antigens were detected in 53% of individuals at various expression levels. In contrast, there was no detectable EBV antigen expression in control brain tissues. Moreover, we found marked increases in the expression of TLR3, TLR9, and TRIF in the brain tissues of RE patients compared with levels in the control group. Furthermore, among RE cases, EBV expression and high TLR3 expression were associated with more severe brain atrophy. Our results suggest that the elevated expression of EBV and TLRs may be involved in RE occurrence through the activation of downstream molecules. | Xin Wang Yisong Wang Dong Liu Peigang Wang Dongying Fan Yuguang Guan Tianfu Li Guoming Luan Jing An | 2017 | Virologica Sinica2017，32，5： | 3 |
| 5 | Unsteady Numerical Simulation of Steam-Solid Two-Phase Flow in the Governing Stage of a Steam Turbine显示文摘Solid particle erosion (SPE) in an ultra-supercritical steam turbine control stage with block configuration is investigatednumerically, based on the finite volume method and the fluid-particle coupling solver. We apply the particlediscrete phase model to model the solid particles flow, and use the Euler conservation equations to solve thecontinuous phase. The investigation is focused on the influence of the solid particle parameters (such as particlediameter, particle velocity and particle trajectory) on the erosion rate of the stator and rotor blade surface in unsteadycondition. The distributions of the highly eroded zone on the stator and rotor blade surfaces are shown anddiscussed in detail according to the mechanism of solid particle/blade wall interaction. We obtain that the erosionrate of the vane blade is sensitive to the fluctuation of the potential flow field, and the smaller particle has agreater impact on the erosion distribution of rotor blade. The erosion rate does not entirely depend on the diametersize of the solid particle. | Yufeng Li Peigang Yan Wanjin Han | 2009 | Journal of Thermal Science2009，18，4： | 2 |
| 6 | Study on wellbore temperature of riserless mud recovery system by CFD approach and numerical calculation显示文摘The riserless mud recovery(RMR)system abandons the riser used in conventional offshore drilling,and the drill string above the seabed is directly exposed to seawater,resulting in convective heat transfer from the drilling fluid in the drill string to seawater.Therefore,the wellbore temperature distribution in the RMR system is quite different from the conventional offshore drilling.In this paper,based on the heat transfer characteristics of the RMR system,a mathematical model of the thermal field of the RMR system is established.The data used in this paper come from a vertical well in the South China Sea.Computational Fluid Dynamics(CFD)software is used to simulate the temperature distribution in drill string at different seawater depths and different formation depths in this paper,and the simulation results are compared with the calculation results of the mathematical model,so as to verify the feasibility of the mathematical model established in this paper.Combined with the calculation results of the mathematical model,this paper also explores the effect of different discharge capacity and different injection temperature of drilling fluid on the wellbore temperature change. | Xin Li Jie Zhang Xu Tang Gezhen Mao Peigang Wang | 2020 | Petroleum2020，6，2： | 2 |
| 7 | Numerical Study of Improving Aerodynamic Performance of Low Solidity LPT Cascade through Increasing Trailing Edge Thickness显示文摘This paper presents a new idea to reduce the solidity of low-pressure turbine(LPT) blade cascades,while remain the structural integrity of LPT blade.Aerodynamic performance of a low solidity LPT cascade was improved by increasing blade trailing edge thickness(TET).The solidity of the LPT cascade blade can be reduced by about12.5% through increasing the TET of the blade without a significant drop in energy efficiency.For the low solidity LPT cascade,increasing the TET can decrease energy loss by 23.30% and increase the flow turning angle by1.86% for Reynolds number(Re) of 25,000 and freestream turbulence intensities(FSTT) of 2.35%.The flow control mechanism governing behavior around the trailing edge of an LPT cascade is also presented.The results show that appropriate TET is important for the optimal design of high-lift load LPT blade cascades. | LI Chao YAN Peigang WANG Xiangfeng HAN Wanjin WANG Qingchao | 2016 | Journal of Thermal Science2016，25，4： | 1 |
| 8 | Effects of aspect ratio and particle size on the microwave properties of Fe-Cr-Si-Al alloy flakes显示文摘 | Xian Wang Rongzhou Gong Peigang Li | | 0，，01： | 1 |
| 9 | Effects of aspect ratio and particle size on the microwave properties of Fe-Cr-Si-Al alloy flakes显示文摘 | Wang Xian Gong Rongzhou Li Peigang | 2007 | Journal of Materials Science and Engineering A2007，466，12： | 1 |
| 10 | Effects of aspect ratio and particle size on the microwave properties of Fe-Cr-Si-Al alloy flakes显示文摘 | WANG Xian GONG Rongzhou LI Peigang | 2007 | Materials Science and Engineering2007，466，12： | 1 |
| 11 | Temporal and Quantitative Analysis of Atherosclerotic Lesions in Diet-Induced Hypercholesterolemic Rabbits显示文摘 | Qi Yu Yafeng Li Ahmed Bilal Waqar Yanli Wang Bingqiao Huang Yulong Chen Sihai Zhao Peigang Yang Jianglin Fan Enqi Liu George E. Plopper | 2012 | Journal of Biomedicine and Biotechnology2012，，： | 1 |
| 12 | Effects of aspect ratio and particle size on the microwave proper- ties of Fe-Cr-Si-A! alloy flakes 显示文摘 | Wang Xian Gong Rongzhou Li Peigang | 2007 | Materials Science and Engineering: A2007，466，12： | 1 |
| 13 | Comprehensive Evaluation of the Objective Q uality of Life of Chinese R esidents:2006 to 2009显示文摘 | Zhi Li Peigang Wang | 2013 | Soc Indic R2013，，2013： | 1 |
| 14 | Strong,Conductive,Lightweight,Neat Graphene Aerogel Fibres with Aligned Pores显示文摘 | Xu Zhen Zhang Yuan Li Peigang | | 0，，08： | 1 |
| 15 | Factors affecting the superconductivity in the process of depositing Nd_(1.85)Ce_(0.15)CuO_(4-δ)by the pulsed electron deposition technique显示文摘On SrTiO3 single crystal substrate,by using the pulsed electron deposition tech-nique,the high-quality electron doped Nd1.85Ce0.15CuO4?δ superconducting film was successfully fabricated. After careful study on the R-T curves of the obtained sam-ples deposited with different substrate temperatures,thicknesses,annealing methods and pulse frequencies,the effects of them on the superconductivity of the films were found,and the reasons were also analyzed. Additionally,by using the same model of the pulsed laser deposition technique,the relation between the target-to-substrate distance and the deposition pressure was drawn out as a quantitative one. | GUO YanFeng CHEN LeiMing GUO Xi LI PeiGang LEI Ming TANG WeiHua | 2007 | Science China(Physics,Mechanics & Astronomy)2007，50，6： | 1 |
| 16 | Oxygen vacancies modulating self-powered photoresponse in PEDOT:PSS/ε-Ga_(2)O_(3)heterojunction by trapping effect显示文摘Can the modulation effect of charge-carrier transfer be inherited from a single layer to its heterojunction structure?Certainly,the answer is yes.Herein,we experimentally verify that the photodetection performance modulation effect of oxygen vacancy(Vo)is transmitted from theε-Ga_(2)O_(3)layer to the PEDOT:PSS/ε-Ga_(2)O_(3)(PGO)hybrid heterojunction.By adopting the annealedε-Ga_(2)O_(3)films,whose Voconcentrations are remolded by annealing ambients,the constructed PGO photodetectors(PDs)demonstrate regulable self-powered performance.As the V_(o)defects decrease,the photodetection properties are effectively enhanced with a high photo-to-dark current ratio of 2.37×10^(7),an excellent on/off switching ratio of 6.45×10^(5),fast rise/decay time of 121/72 ms,a large responsivity of 67.9 m A/W,superior detectivity of 9.2×10^(13)Jones,an outstanding external quantum efficiency of 33.2%,and a high rejection ratio(R_(250)/R_(400))of 5.96×10^(6)at 0 V in PGO-O;PD.The better photoresponse is attributed to the less V_(o)defect concentration in theε-Ga_(2)O_(3)layer,which could favor the lower electron-trapping probability and a more efficient charge-carrier transfer.Considering the universality of V_(o)defects in oxide materials,the proposed regulation strategy of photoresponse will open the route of high self-powered performance for next-generation ultraviolet PDs. | LI Shan YUE JianYing LU Chao YAN ZuYong LIU Zeng LI PeiGang GUO DaoYou WU ZhenPing GUO YuFeng TANG WeiHua | 2022 | Science China(Technological Sciences)2022，65，3： | 1 |
| 17 | Preparation and electromagnetic characteristics of silica coated Fe–Ni–Mo alloy flakes显示文摘 | Xian Wang Rongzhou Gong Xiangcheng Li Yanfei He Lingyun Liu Peigang Li | 2007 | Journal of Materials Science: Materials in Electronics2007，，5： | 1 |
| 18 | The Case-Based Rea- soning Technology Based on Functional Mode显示文摘 | Li Peigang Feng Xianying Song Yaqing | 2011 | Journal of Ad-vanced Manufacturing Systems2011，10，1： | 1 |
| 19 | Strong, Conductive, Lightweight, Neat Graphene Aerogel Fibres with Aligned Pores 显示文摘 | Xu Zhen Zhang Yuau Li Peigang | 2012 | ACS Nano2012，6，8： | 1 |
| 20 | Combination of Loosely and Compactly Coupled Integrations of CAD Tools and Its Applications In SAW D显示文摘CombinationofLooselyandCompactlyCoupledIntegrationsofCADToolsandItsApplicationsInSAWDevicesDesignandFabricationPeigangLi;Jiaq... | Peigang Li Jiaqin Zhang & Yuquan Hao(Institute 23 of the Second Academy of China National Aerospace Corporation P. O. Box 3923, N.37, Beijing 100854, China,) e-mail: zengxy9@hns.cjfh.ac.cn.(Received March 20, 1996) | 1996 | Journal of Systems Engineering and Electronics1996，7，2： | 0 |
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