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| 1 | Effects of calcination temperature and Li^+ ions doping on structure and upconversion luminescence properties of TiO_2:Ho^(3+)-Yb^(3+) nanocrystals显示文摘Ho^(3+)-Yb^(3+) co-doped and Ho^(3+)-Yb^(3+)-Li^+ tri-doped TiO_2 nanocrystals were prepared using the sol-gel method. Effects of the calcination temperature and Li^+ ions doping on the structure and upconversion luminescence properties of Ho^(3+)-Yb^(3+) co-doped TiO_2 nanocrystals were investigated. The upconversion luminescence of nanocrystals was enhanced with the reduction of the crystal lattice symmetry and the crystallinity improvement of the matrix, which were facilitated by the calcination temperature change and Li^+ ions doping. The lowest lattice symmetry and the best crystallinity of the matrix resulted in the maximum luminescence intensity. | Kaishun Zou Guangzong Dong Juncheng Liu Boxu Xu Danping Wang | 2019 | Journal of Materials Science & Technology2019，35，4： | 1 |
| 2 | Geotectonic evolution of lunar LQ-4 region based on multisource data显示文摘The Sinus Iridum region, the first choice for China's 'Lunar Exploration Project' is located at the center of the lunar LQ-4 area and is the site of Chang'e-3(CE-3)'s soft landing. To make the scientific exploration of Chang'e-3 more targeted and scientific, and to obtain a better macro-level understanding of the geotectonic environment of the Sinus Iridum region, the tectonic elements in LQ-4 region have been studied and the typical structures were analyzed statistically using data from CE-1, Clementine, LRO and Lunar Prospector missions. Also, the mineral components and periods of mare basalt activities in the study area have been ascertained. The present study divides the tectonic units and establishes the major tectonic events and sequence of evolution in the study area based on morphology, mineral constituents,and tectonic element distribution. | Jianping Chen Yanbo Xu Xiang Wang Shujun He Danping Yan Shaofeng Liu Yongliao Zou Yongchun Zheng | 2014 | Geoscience Frontiers2014，5，2： | 1 |
| 3 | Collaborative visual SLAM for multiple agents:A brief survey显示文摘This article presents a brief survey to visual simultaneous localization and mapping (SLAM) systems applied to multiple independently moving agents, such as a team of ground or aerial vehicles, a group of users holding augmented or virtual reality devices. Such visual SLAM system, name as collaborative visual SLAM, is different from a typical visual SLAM deployed on a single agent in that information is exchanged or shared among different agents to achieve better robustness, efficiency, and accuracy. We review the representative works on this topic proposed in the past ten years and describe the key components involved in designing such a system including collaborative pose estimation and mapping tasks, as well as the emerging topic of decentralized architecture. We believe this brief survey could be helpful to someone who are working on this topic or developing multi-agent applications, particularly micro-aerial vehicle swarm or collaborative augmented/virtual reality. | Danping ZOU Ping TAN Wenxian YU | 2019 | Virtual Reality & Intelligent Hardware2019，1，5： | 1 |
| 4 | Controlled synthesis of porous Fe 3 O 4 -decorated graphene with extraordinary electromagnetic wave absorption properties显示文摘 | Danping Sun Quan Zou Guoqiang Qian Chen Sun Wei Jiang Fengsheng Li | 2013 | Acta Materialia2013，，： | 1 |
| 5 | Boosted sustained-release with iron-based MOF-derived mesoporouscarbon-spheres as a nitroimidazole drugs carrier显示文摘Metal-organic framework(MoF)with a buildable internal structure has aroused great interest focus as self-sacrificing precursors of porous carbon(PC).However,as a drug carrier,the MOF-derived PC developed thus far are generally composed of irregular powder shape due to their crystalline nature,which consequently causing the cerebral infarction,cerebral thrombosis,and other blood diseases.In this article,we propose a novel approach to constructing amorphous carbon microspheres(AcMs)by dis-torting the topological network through hydrothermal treatment precursors of MIL-101(Fe).Then,a distinctive MIL-101(Fe)-derived spherical porous carbons(MSPC)is achieved through high temperature calcination toward ACMs.Effects of the glucose initial concentration and hydrothermal treatment time on the sphericity of the as-prepared mesoporous MsPC were investigated in depth.And the loading capacities and sustained-release performances of nitroimidazole drugs over MsPC through simulation internal environment of human body at different pH values was systematically evaluated.The nitro-imidazole drugs loading rate and release time of MsPC are 10% and 17 h under preferred process.Furthermore,the MSPC exhibited very low toxicity on Hela cells and 293T cells at the concentrations tested(10-800μg mL^(-1)).This study,therefore,supports the potential of the mesoporous carbon spheres as a carrierfor nitroimidazole drug delivery. | Danping Wu Jiaying Zou Junyi Chen Yan Li Na Ma Wei Dai | 2024 | Particuology2024，86，3： | 0 |
| 6 | Optimization of Baosteel's digital automatic analysis technique for maceral specification显示文摘Baosteel developed a digital automatic analysis technique for maceral specification in 2002.This analysis system combines digital image processing,graphics,databases,expert systems,artificial intelligence and other advanced technologies.After 6 years of application in coke production,the system proved itself successful in coal quality testing and coal blending guidance on maceral.However,during this long process,some inadequacies were found that impacted the precision and accuracy of the analysis.So,in 2008 Baosteel began to work on improving the coal maceral analysis system. The improvements included the following:further upgrading and enhancing the analysis performance of microscopic images;extending the gray levels to increase the reflectance measurement accuracy 64 times;changing the focus method and effectively eliminating the interference of halo.In addition,an improved image recognition method was adopted to make the extraction of vitrinite more accurate and a new model of coal constituent algorithm was added which can accurately determine the composition of maceral(exinite,vitrinite,inertinite).Since these improvements were completed, the system has achieved higher automation,speed and accuracy,collected more information and performed more accurate maceral analysis for coke production.Meanwhile,the improved system has provided a reliable analytical basis for the further study on the relationship between coke quality and coal blending. | SUN Weizhou HU Desheng ZOU Danping | 2013 | Baosteel Technical Research2013，7，2： | 0 |
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