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| 1 | Fissure evolution and evaluation of pressure-relief gas drainage in the exploitation of super-remote protected seams显示文摘Based on nonlinearity contact theory and the geological structure of the Xieqiao Coal Mine in the newly developed Huainan coal field,rock movements,mining fissures and deformation of overlying strata were simulated by using the interface unit of FLAC3D to evaluate the pressure-relief gas drainage in the exploitation of super-remote protected seams.The simulation indicates that the height of the water flowing fractured zone is 54 m in the overlying strata above the protective layer.The maximum relative swelling deformation of the C13 coal seam is 0.232%,while the mining height is 3.0 m and the distance from the B8 roof to the C13 floor is 129 m,which provides good agreement with a similar experiment and in situ results.The feasibility of exploitation of a super-remote protective coal seam and the performance of the pressure-relief gas drainage in a super-remote protected layer are evaluated by comparisons with practice projects.It demonstrates that the relieved gas in the super-remote protected layers could be better drained and it is feasible to exploit the B8 coal seam before the C13 super-remote protected coal seam.The method is applicable for the study of rock movements,mining fissures and deformation of the overburden,using the interface unit to analyze the contact problems in coal mines. | LIU, Hongyong CHENG, Yuanping ZHOU, Hongxing WANG, Feng CHEN, Haidong | 2010 | Mining Science and Technology2010，20，2： | 10 |
| 2 | Controlling the effect of a distant extremely thick igneous rock in overlying strata on coal mine disasters显示文摘Based on theoretical analysis, similarity simulation tests, numerical simulation analysis and field observations, we analyzed rock collapse and rules of fraction evolution of overlying rocks and studied the rules in controlling the effect of an extremely thick igneous rock, found above a main mining coal seam in an area prone to coal mine disasters in the Haizi Coal Mine. The results show that this igneous rock, called a 'main key stratum', will not subside nor break for a long time, causing lower fractures and bed separations not to close. The presence of igneous rock plays an important role in rock bursts, mine floods, gas outburst and surface subsidence in coal mines. By analyzing the rules in controlling the effect of this igneous rock, we provide useful references for safety and high efficiency mining in coal mines under special geological conditions. | WANG Liang | 2010 | Mining Science and Technology2010，20，4： | 8 |
| 3 | Electric-field control of the activity of the graphene-based catalyst显示文摘Effects of an electric field on CO oxidation of Au-embedded graphene are investigated using first-principles method. Results of our calculations show that the initial step of the reaction is more likely to proceed via the Langmuir-Hinshelwood mechanism in the presence of the field, and the reaction barrier can be tuned continuously by the electric field. However, the applied electric field makes it more difficult for the product of the reaction, CO2, to desorb from the reaction site. These two competing effects make an electric field not entirely advantageous in controlling the activity of Au-embedded graphene for CO oxidation reaction. Nevertheless, the findings of our study provide a basis for further investigation on control of chemical reactions by electric fields. | LU YunHao FENG YuanPing | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，5： | 3 |
| 4 | Magnetic properties of carbon doped Cd S:a first principles and Monte Carlo study显示文摘 | Pan Hui Feng Yuanping Wu Qinyun | 2008 | Physical Review B2008，77，12： | 1 |
| 5 | Ab initio study of electronic and optical properties of multiwall carbon nanotube structures made up of a single rolled-up graphite sheet显示文摘 | PAN Hui FENG Yuanping LIN Jianyi | 2005 | Phys Rev B2005，72，08： | 1 |
| 6 | Sulfur vs. tellurium: the heteroatom effects on the nonfullerene acceptors显示文摘The effect of chalcogen heteroatom variation on donor materials has been systematically investigated. However, this effect on acceptors has rarely been explored. Herein, nonfullerene acceptors BFPSP and BFPTP were reported by simply changing the chalcogen atoms from S to Te. The differences between BFPSP and BFPTP in light absorption, energy levels, excited-state lifetimes, energy loss, charge mobilities, morphology, and photovoltaic properties were systematically investigated to understand the heteroatom effects. More importantly, the electroluminescence spectra, external quantum efficiency of photovoltaics and TDDFTcalculations revealed that the triplet excited state(T1) in energy of BFPTP equals to the charge transfer(CT) state in PBDBT:BFPTP, which allows T1 excitons, generated by intersystem crossing, to split into free charges to contribute to the efficiency.This contribution provides a strategy for tuning the photophysical properties of nonfullerene acceptors and designing high performance triplet materials for OSCs. | Lei Yang Linqing Qin Yunxiao Xu Huotian Zhang Lei Lv Kepeng Chen Xinyu Sui Yangguang Zhong Yuan Guo Feng Gao Jianzhang Zhao Yuhao Li Xinfeng Liu Yuanping Yi Xinhui Lu Aidong Peng Hui Huang | 2019 | Science China Chemistry2019，62，7： | 1 |
| 7 | Expressional profiling study revealed unique expressional patterns and dramatic expressional divergence of maize α-zein super gene family显示文摘 | Lingna Feng Jia Zhu Gang Wang Yuanping Tang Hanjun Chen Weibo Jin Fei Wang Bing Mei Zhengkai Xu Rentao Song | 2009 | Plant Molecular Biology2009，，6： | 1 |
| 8 | Strain-induced spatially indirect exciton recombination in zinc-blende/wurtzite CdS heterostructures显示文摘Strain engineering provides an effective mean of tuning the fundamental properties of semiconductors for electric and optoelectronic applications. Here we report on how the applied strain changes the emission properties of hetero- structures consisting of different crystalline phases in the same CdS nanobelts. The strained portion was found to produce an additional emission peak on the low-energy side that was blueshifted with increasing strain. Furthermore, the additional emission peak obeyed the Varshni equation with temperature and exhibited the band-filling effect at high excitation power. This new emission peak may be attributed to spatially indirect exciton recombination between different crystalline phases of CdS. First-principles calculations were performed based on the spatially indirect exciton recombination, and the calculated and experimental results agreed with one another. Strain proved to be capable of enhancing the anti-Stokes emission, suggesting that the efficiency of laser cooling may be improved by strain engineering. | Dehui Li Yang Liu Maria de la Mata Cesar Magen Jordi Arbiol Yuanping Feng Qihua Xiong | 2015 | Nano Research2015，8，9： | 1 |
| 9 | Crystallographic tilt in GaN layers grown by epitaxial lateral overgrowth显示文摘 | Feng Gan Zheng Xinhe Zhu Jianjun Shen Xiaoming Zhang Baoshun Zhao Degang Sun Yuanping Zhang Zehong Wang Yutian Yang Hui Liang Junwu | 2002 | Science in China Series A: Mathematics2002，，11： | 1 |
| 10 | Regulation of excitation transit ons by molecular design endowing full-color-tunable emissions with unexpected high quantum yields for bioimaging application显示文摘Organic fluorophores are indispensible in chemical/biological imaging. The conjugated fluorescent molecules simultaneously possessing highly tunable emission, high quantum yield in solvents of different polarities, and large Stokes shift are quite rare. Herein, we report a new category of fluorophores based on diarylated thieno[3,4-b]thiophenes efficiently synthesized by direct C-H arylation reaction. TbT-Fluors showed full-color-tunable emissions with large Stokes shifts. Intriguingly,the fluorescence quantum yields of TbT-Fluors are barely sensitive to solvent polarities, approaching 100%. Based on photophysical and theoretical investigations, we found that the enhanced oscillator strength of the S_1-S_0 transition and increased T2-S1 energy difference can sufficiently compensate the negative effect from the decreased energy gap and increased reorganization energy in dimethyl sulfoxide(DMSO). Bioimaging applications revealed that some TbT-Fluors can penetrate the cell membrane and are superior for imaging in terms of high photochemical stability and low cytotoxicity. Furthermore, TbT-PhF exhibits specific colocalization with mitochondria in living cells. | Feng Liu Shengliang Li Ruihong Duan Shuhai Qiu Yuanping Yi Shu Wang Xiaozhang Zhu | 2018 | Science China Chemistry2018，61，4： | 0 |
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