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| 1 | Numerical simulation of the effect of lower positive charge region in thunderstorms on different types of lightning显示文摘Combined with the existing stochastic lightning parameterization scheme, a classic tripole charge structure in thunderstorms is assumed in the paper, and then 2-dimensional fine-resolution lighting discharge simulations are performed to quantitatively investigate the effect of lower positive charge(LPC) on different types of lightning. The results show:(1) The LPC plays a key role in generating negative cloud-to-ground(CG) flashes and inverted intra-cloud(IC) lightning, and with the increase of charge density or distribution range of LPC region, lightning type changes from positive polarity IC lightning to negative CG flashes and then to inverted IC lightning.(2) Relative to distribution range of charge regions, the magnitude of charge density of the LPC region plays a dominant role in lightning type. Only when the maximal charge density value of LPC region is within a certain range, can negative CG flashes occur, and the occurrence probability is relatively fixed.(3) In this range, the charge density and distribution range of LPC region jointly determine the occurrence of negative CG flashes, which has a linear boundary with the trigger condition of IC lightning.(4) The common effect of charge density and distribution range of the LPC region is to change the distribution of positive potential well of bottom part of thunderstorms, and inverted IC lightning occurs when the initial reference potential is close to 0 MV, and negative CG flashes occur when the initial reference potential is far less than 0 MV. | TAN YongBo LIANG ZhongWu SHI Zheng ZHU JunRu GUO XiuFeng | 2014 | Science China Earth Sciences2014，57，9： | 5 |
| 2 | The preparation and characteristics of cobalt blue mica coated titania pearlescent pigment 显示文摘 | TAN Junru HAN Yunfang HOU Wenxiang | 2002 | Dyes Pigment2002，52，： | 1 |
| 3 | The preparation and characteristics of cobalt blue mica coated titania pearlescent pigment显示文摘 | Tan Junru Han Yunfang Hou Wenxiang | 2002 | Dyes and Pigments2002，52，3： | 1 |
| 4 | 显示文摘 | Tan Junru Shen Lazhen Fu Xiansong | 2004 | Dyes and Pig- ments2004，，62： | 1 |
| 5 | Preparation of nanometer-sized ( 1 - x) Sn02-x Sb2O3 conductive pigment powders and the hydrolysis behavior of urea 显示文摘 | Junru Tan Lazhen Shen Xiansong Fu | 2004 | Dyes and Pigments2004，61，： | 1 |
| 6 | The prepa- ration and characteristics of a multi-cover-layer type, blue mica titania, pearleseent pigment 显示文摘 | Tan Junru Fu Xiansong Hou Wenxiang | 2003 | Dyes and Pigments2003，56，2： | 1 |
| 7 | The preparation and eharaeteristies of a multi-cover-layer type, blue mica titania, pearleseent pigment 显示文摘 | Tan Junru Fu Xiansong Hou Wenxiang et el | 2003 | Dyes and Pigments2003，，56： | 1 |
| 8 | The preparation and characteristics of cobalt blue mica coated titania pearlescent pigment显示文摘 | Tan Junru Han Yunfang Hou Wenxiang | 2002 | Dyes and Pigments2002，52，3： | 1 |
| 9 | Achieving Ultra-Wideband and Elevated Temperature Electromagnetic Wave Absorption via Constructing Lightweight Porous Rigid Structure显示文摘Realizing ultra-wideband absorption,desirable attenuation capability at high temperature and mechanical requirements for real-life applications remains a great challenge for microwave absorbing materials.Herein,we have constructed a porous carbon fiber/polymethacrylimide(CP)structure for acquiring promising microwave absorption performance and withstanding both elevated temperature and high strength in a low density.Given the ability of porous structure to induce desirable impedance matching and multiple reflection,the absorption bandwidth of CP composite can reach ultra-wideband absorption of 14 GHz at room temperature and even cover the whole X-band at 473 K.Additionally,the presence of imide ring group in polymethacrylimide and hard bubble wall endows the composite with excellent heat and compressive behaviors.Besides,the lightweight of the CP composite with a density of only 110 mg cm^(−3) coupled with high compressive strength of 1.05 MPa even at 453 K also satisfies the requirements in engineering applica-tions.Compared with soft and compressible aerogel materials,we envision that the rigid porous foam absorbing material is particularly suitable for environmental extremes. | Zibao Jiao Wenjun Huyan Feng Yang Junru Yao Ruiyang Tan Ping Chen Xuewei Tao Zhengjun Yao Jintang Zhou Peijiang Liu | 2022 | Nano-Micro Letters2022，14，11： | 1 |
| 10 | Preparation and conductive mechanism of mica titania conductive pigment显示文摘 | Tan Junru Shen Lazhen Fu Xiansong | | 0，，2： | 1 |
| 11 | Preparation and formation mechanism of nano-iron oxide black pigment from blast furnace flue dust显示文摘 | Lazhen Shen Yongsheng Qiao Yong Guo Junru Tan | 2013 | Ceramics International2013，，1： | 1 |
| 12 | The preparation and characteristics of cobalt blue mica coated titania pearlescent pigment显示文摘 | Tan Junru Han Yunfang Hou Wenxiang | 2002 | Dyes and Pigments2002，52，3： | 1 |
| 13 | High-performance broadband photodetector based on PtSe_(2)/MoS_(2) heterojunction from visible to near-infrared region显示文摘Broadband photodetectors based on narrow bandgap 2D materials have garnered considerable interest for application in the field of optoelectronic devices.However,their large dark current hinders device performance.In this work,a PtSe_(2)/MoS_(2) heterojunction was fabricated for a broadband photodetector operating within the range of visible to near-infrared.The device exhibited suppressed dark currents with a high rectification ratio of 104.The built-in electric field of the heterojunction promoted carrier separation effectively,and the device achieved excellent photoelectric performance with responsivities of 1.7×10^(3),27.52,and 21 mA/W at 635,785,and 1550 nm wavelengths,respectively.Moreover,the specific detectivities(D^(*))were 2.2×10^(13)Jones(635 nm),3.55×10^(11)Jones(785 nm),and 2.72×10^(8) Jones(1550 nm).The device demonstrated a rise/fall time of 131/241μs under 1550 nm laser illumination.Visible and near-infrared imaging detection was also demonstrated based on the heterojunction device at room temperature.This work sheds light on the remarkable potential of PtSe_(2)/MoS_(2) heterojunctions in the domain of high-performance broadband photodetectors. | Bin WANG Jian YUAN Mengqi CHE Mingxiu LIU Yuting ZOU Junru AN Fan TAN Yaru SHI Nan ZHANG Liujian QI Shaojuan LI | 2024 | Science China(Information Sciences)2024，67，3： | 0 |
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