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| 1 | The cellular automaton model of investment be- havior in the stock market 显示文摘 | Wei Yiming Ying Shangjun Fan Ying Wang Bing-hong | 2002 | Physica A2002，325，： | 1 |
| 2 | The cellular automaton model of investment behavior in the stock market显示文摘 | Wei Yiming Ying Shangjun Fan Ying Wang Binghong | 2003 | Physica A2003，325，： | 1 |
| 3 | The cellular automata model of investment behavior in the stock market显示文摘 | Shangjun Ying Ying Fan Binghong Wang | 2003 | Physica A2003，325，： | 1 |
| 4 | Unleash electron transfer in C–H functionalization by mesoporous carbon-supported palladium interstitial catalysts显示文摘The functionalization of otherwise unreactive C–H bonds adds a new dimension to synthetic chemistry,yielding useful molecules for a range of applications.Arylation has emerged as an increasingly viable strategy for functionalization of heteroarenes which constitute an important class of structural moieties for organic materials.However,direct bisarylation of heteroarenes to enable aryl-heteroaryl-aryl bond formation remains a formidable challenge,due to the strong coordination between heteroatom of N or S and transitional metals.Here we report Pd interstitial nanocatalysts supported on ordered mesoporous carbon as catalysts for a direct and highly efficient bisarylation method for five-membered heteroarenes that allows for green and mild reaction conditions.Notably,in the absence of any base,ligands and phase transfer agents,high activity(turn-over frequency,TOF,up to 107 h-1)and selectivity(>99%)for the 2,5-bisarylation of five-membered heteroarenes are achieved in water.A combination of characterization reveals that the remarkable catalytic reactivity here is attributable to the parallel adsorption of heteroarene over Pd clusters,which breaks the barrier to electron transfer in traditional homogenous catalysis and creates dual electrophilic sites for aryl radicals and adsorbate at C2 and C5 positions.The d-band filling at Pd sites shows a linear relationship with activation entropy and catalytic activity.The ordered mesopores facilitate the absence of a mass transfer effect.These findings suggest alternative synthesis pathways for the design,synthesis and understanding of a large number of organic chemicals by ordered mesoporous carbon supported palladium catalysts. | Xiaorui Zhao Yueqiang Cao Linlin Duan Ruoou Yang Zheng Jiang Chao Tian Shangjun Chen Xuezhi Duan De Chen Ying Wan | 2021 | National Science Review2021，8，4： | 0 |
| 5 | The self-assembly of gold nanoparticles in large-pore ordered mesoporous carbons显示文摘Simple encapsulation of 3 nm gold nanoparticles in ordered mesoporous carbon with large pores of 17 nm and thick pore walls of 16 nm was achieved by a metal–ligand coordination assisted-selfassembly approach.Polystyrene-block-polyethylene-oxide(PS-b-PEO)diblock copolymer with a large molecular weight of the PS chain and mercaptopropyltrimethoxysilane were used as the template and the metal ligand,respectively.Small-angle X-ray scattering,X-ray diffraction,transmission electron microscopy,and X-ray photoelectron spectroscopy showed that monodispersed aggregation-free gold nanoparticles approximately 3 nm in size were partially embedded in the large open pore structure of the ordered mesoporous carbon.The strong coordination between the gold species and the mercapto groups and the thick porous walls increased the dispersion of the gold nanoparticles and essentially inhibited particle aggregation at 600℃.The gold nanoparticles in the ordered mesoporous carbon are active and stable in the reduction of nitroarenes involving bulky molecules using sodium borohydride as a reducing agent under ambient conditions(30℃)in water.The large interconnected pore structure facilitates the mass transfer of bulky molecules. | Chun Pei Shangjun Chen Rongrong Song Fei Lv Ying Wan | 2022 | Chinese Journal of Chemical Engineering2022，35，1： | 0 |
| 6 | Recovery of Level Pillar between Open-pit and Underground Mine by Using Underhand Heading Fill Method显示文摘The upper part of the Fujia deposit was mined out by open-pit, and the lower part is being mined underground. The level pillar between open-pit and underground mine had a thickness of 24 m, a length of 300 m and a maximum width of 35 m. As the level pillar contained about 5.2 million ton ore of high nickel grade, it was necessary to recover the level pillar. Because of special need of safety, underhand heading cut-and-fill stoping method was used. For the first two layers of heading, the cemented fill materials were a mix of water and high-aluminum-content cement with silicate gelling agent; and for other heading layers, total tailings was added into the fill mix in order to reduce the cement consumption. Finally, the level pillar was recovered successfully. | Sijing Cai, Hai Zhao,Shangjun Ying 1) Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China 2)Fujia Mine, him Nickel Corporation, Jilin 132311, China | 2001 | Journal of University of Science and Technology Beijing2001，8，4： | 0 |
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