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| 1 | Model test investigation on an innovative lifting system for deepwater riser installation显示文摘An S-lay crane barge,named CNOOC 201,has been built for pipe laying in deepwater oil/gas fields in the South China Sea.It is due to be commissioned by the end of the year 2010.A special lifting system is developed to meet the challenge that installing deepwater risers from an S-lay barge is difficult and has not been achieved.The purpose of this paper was to investigate the model test on such an innovative system,which has to be done before field application.By applying the similarity theory,the movement of the S-lay barge is simulated through a six degrees-of-freedom motion platform,and a truncated model riser is utilized for the model testing.The displacement and force boundary conditions at the truncated position of the riser are obtained from the catenary governing equation and become realized by a slideway cart and a loading system designed to control the configuration of the model riser,which presents a similar configuration to a real riser in deepwater.The test results are in very good agreement with theoretical calculations,showing that the active truncated test is applicable for controlling the configuration of the deepwater riser in model testing investigation. | Mao Dongfeng Duan Menglan Wang Yi He Ning Chen Bangmin Zhang Yingjie | 2010 | Petroleum Science2010，7，4： | 4 |
| 2 | Self-assembly of Pyrene-modified Rhomboidal Metalloden- drimers via Directional Metal-ligand Bonding Approach显示文摘设计并且经由方向性的 metal-ligand 的修改分核的长斜方形的 metallodendrimers R1R6 自己组装结合的途径被描述。由采用包含分核 120 敺搠獩牴扩瑵潩 ? 景 ? 偄华 ? 敷敲搠瑥牥業敮 ? 祢搠湹浡捩氠杩? | Menglan He Qing Han Jiuming He Quanjie Li Zeper Abliz Hongwei Tan Lin Xu Haibo Yang | 2013 | Chinese Journal of Chemistry2013，31，5： | 1 |
| 3 | Insight into leaching of rare earth and aluminum from ion adsorption type rare earth ore:Adsorption and desorption显示文摘Clay minerals are inferred to be the primary host materials for ion-exchangeable rare earth in ion adsorption type rare earth ore(IAREO).During the rare earth leaching process,the adsorption and desorption reactions of the cations controlling the leaching process continue to occur at the clay minerals-leaching agent solution interface.In order to understand the leaching mechanism and behavior of rare earth and co-leached aluminum,adsorption,competitive adsorption,and desorption experiments were carried out using kaolin as a typical clay mineral.The powerful electrostatic attraction and concentration driving forces facilitate the adsorption of cations.The adsorption ability and competitive adsorption ability of cations depend on their charge,hydration radius,and hydrolysis properties,and decrease in the order of La^(3+),Y^(3+),Al^(3+),Mg^(2+),and NH_(4)^(+).The desorption of rare earth and aluminum is positively affected by the concentration-driving force exerted by high concentrations of Mg^(2+) and NH_(4)^(+),with the order of the desorption ability being opposite to the adsorption ability.However,unspecified interactions between clay mineral particles enhanced by high-concentration desorbents,especially by Mg^(2+) than NH_(4)^(+),will adversely affect desorption reactions,which result in lower desorption efficiencies of rare earth and aluminum obtained with magnesium sulfate compared to those obtained with ammonium sulfate at high concentrations.Solid-phase Al(OH)_(3) generated at a high peak aluminum concentration leads to a considerably delayed aluminum efflux,thereby partially separating the rare earth from aluminum during the actual column leaching process.To advance the mining technology of IAREO by selectively improving the rare earth leaching efficiency with minimal leaching agent consumption,higher charged cations with concentrations limited to suitable levels should be preferred as leaching agents. | Qiang He Jinfa Chen Limei Gan Menglan Gao Miaomiao Zan Yanfei Xiao | 2023 | Journal of Rare Earths2023，41，9： | 0 |
| 4 | Facile construction of Zn(Ⅱ)-porphyrin-cored [5]rotaxane and its controllable aggregation behaviours显示文摘Rotaxanes have attracted more and more attentions because of their diverse applications as sensors,catalysts, and functional materials. The construction of highly ordered and discrete multirotaxanes with the well-defined structure remains a challenge. Herein, a symmetric [5]rotaxane with zinc porphyrin as core and the neutral platinum-acetylide as the linkage was synthesized with high yield. The [5]rotaxane was well characterized with NMR spectroscopy and MALDI-TOF mass spectrometry. Interestingly, it was found that the [5]rotaxane showed the controllable aggregation behaviours in different solution compositions. For example, in non-polar solution, the [5]rotaxane could self-assemble into the largescaled solid nanospheres while the nanofibers were formed in polar solvent. Further investigation revealed that the [5]rotaxane displayed J-type aggregation in solution driven by p-p interaction. Notably,the similar structure without DPP[5]A formed the irregular morphology at the same condition,suggesting that the existence of rotaxanes endowed the complex with a relative rigid structure to facilitate the formation of the ordered aggregates. | Menglan He Lijun Chen Bo Jianga Hongwei Tan Cuihong Wang Haibo Yang | 2019 | Chinese Chemical Letters2019，30，1： | 0 |
| 5 | Four Outstanding Women Visit Hong Kong显示文摘ON March 2, four of the 'Ten Outstanding Chinese Women' of 1995, joined the delegation of the All-China Women’s Federation (ACWF) on its visit to Hong Kong, and delivered speeches to more than 500 Hong Kong women. They visited Hong Kong with the ACWF delegation at the invitation of women’s organizations in Hong Kong. | WANG MENGLAN ZHANG MIN HE HONG JANE SHAW | 1996 | Women of China1996，，7： | 0 |
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