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| 1 | Key Technologies of Ultra-high Voltage Hybrid LCC-VSC MTDC Systems显示文摘The key technologies of ultra-high voltage hybrid LCC-VSC MTDC systems are investigated,focusing on the design of system configurations,converter topologies and the control and protection system.A double converter per pole of VSC connection is proposed along with the design of a 5000 MW VSC valve to develop a±800 kV/5000 MW large-capacity power transmission.The hybrid MMC topology capable of clearing the DC faults and the control strategy are developed to effectively improve the reliability in case of overhead line faults.The control and protection system of the LCC-VSC MTDC system is introduced to offer flexible operations under both normal and abnormal conditions,which includes voltage/current margin-based coordination,converter switch-in and switch-out,re-connection and drop-off of a third station.Simulations of an LCC-VSC MTDC system based on the LCC-VSC MTDC project are performed. | Hong Rao Yuebin Zhou Shukai Xu Xipeng Cai Wanyu Cao Yiliang Xu Chenglin Ren | 2019 | CSEE Journal of Power and Energy Systems2019，5，3： | 14 |
| 2 | Heavy metal contamination of urban topsoil in a petrochemical industrial city in Xinjiang, China显示文摘Heavy metal pollution is a widespread phenomenon in many countries of the world.In this study,we conducted a field investigation to assess the status of heavy metal pollution in urban soils of Dushanzi,a district of Karamay city in Xinjiang,China.A total of 56 soil samples in the topsoil layer of 0–15 cm were collected within the urban area and seven elements(Cu,Zn,Cd,Pb,Cr,As and Ni) were analyzed.The mean concentrations of these metals were all higher than their corresponding background values of soils in Xinjiang.We used the pollution index and ecological risk index to assess the degree of heavy metal pollution and the potential ecological risk of urban soils.The pollution index values of Cu,Zn,Cd,Pb,Cr,As and Ni were 1.81,1.35,4.64,1.27,1.80,1.39 and 1.22,respectively;and the potential ecological risk index values for them were 12.03,1.79,185.05,8.39,4.78,18.44 and 1.79,respectively.These results indicated that urban soils in Dushanzi were polluted by heavy metals to some extent and demonstrated a high ecological risk,as influenced by industrial activities.Cd was the key element for the metal pollution of urban soils in the study area.Correlation analyses,principal component analysis coupled with the spatial distribution maps of element concentrations further revealed that heavy metal pollution of urban soils can be mainly attributed to petrochemical industry,coal chemical industry,traffic and commercial activities. | WANG Wei LAI Yingshuai MA Yuanyuan LIU Zilong WANG Shufen HONG Chenglin | 2016 | Journal of Arid Land2016，8，6： | 7 |
| 3 | Compacton, peakon and folded localized excitatios for the (2-4-1)-dimentional Broer-Kaup system 显示文摘 | Bai Chenglin Zhon Hong | 2005 | Chaos Solitons and Fractals2005，23，： | 1 |
| 4 | Ferrocenyl-doped silica nanoparticles as an immobilized affinity support for electrochemical immunoassay of cancer antigen 15-3 显示文摘 | Chenglin Hong Ruo Yuan Yaqin Chai | 2009 | Analytica Chimica Acta2009，633，2： | 1 |
| 5 | The constant elasticity of variance(CEV) model and the Leg- endre transform dual solution for annuity contracts 显示文摘 | Jianwu Xiao Zhai Hong Chenglin Qin 2007 | 2007 | Insurance : Mathematics and Economics2007，40，2： | 1 |
| 6 | The constant elasticity of variance (CEV) model and the Legendre transform–dual solution for annuity contracts显示文摘 | Jianwu Xiao Zhai Hong Chenglin Qin | 2006 | Insurance Mathematics and Economics2006，，2： | 1 |
| 7 | A New Generalized Algebraic Method and Its Application in Nonlinear Evo- lution Equations with Variable Coefficients 显示文摘 | BAI Chenglin BAI Chengjie ZHAO Hong | 2005 | Naturforsch2005，60，： | 1 |
| 8 | Task Decomposition Technique's Deduction and Application of Product Developing Process in Concurrent Engineering显示文摘Task decomposition is a kind of powerful technique increasingly being used within industry as a pathway for achieving product's developing success. In this paper, topology's concept in modern mathematics is used for task decomposition technique's deduction in product developing process. It puts forward the views of resolvability, measurability and connectivity of tasks and their practical principles. Combined with an example of developing the typical mechanical product, it explains the implementing method of task decomposition in Concurrent Engineering (CE). | 朱全敏 Xiong Guangleng Zhang Hong Gu Chenglin | 2003 | High Technology Letters2003，9，1： | 1 |
| 9 | Petroleum resource assessment of the East Greenland Basin显示文摘The onshore and offshore parts of the East Greenland Basin are important areas for petroleum exploration at the North Pole. Although assessments by the US Geological Survey suggest a substantial petroleum potential in this area, their estimates carry a high risk because of uncertainties in the exploration data. This paper compares the reservoir-forming conditions based on data from the East Greenland Basin and the North Sea Basin. The petroleum resources of the East Greenland Basin were assessed by geochemical and analogy methods. The East Greenland Basin was a rift basin in the late Paleozoic–Mesozoic. Its basement is metamorphic rock formed by the Caledonian Orogeny in the Archean to Late Ordovician. In the basin, Devonian–Paleogene strata were deposited on the basement. Lacustrine source rock formed in the late Paleozoic and marine source rocks in the Late Jurassic. Shallow-marine sandstone reservoirs formed in the Middle Jurassic and deep-marine turbiditic sandstone reservoirs formed in the Cretaceous.The trap types are structure traps, horst and fault-block traps, salt structure traps, and stratigraphic traps. The East Greenland Basin possesses superior reservoir-forming conditions, favorable petroleum potential and preferable exploration prospects. Because of the lack of exploration data, further evaluation of the favorable types of traps, essential amount of source rock, petroleum-generation conditions and appropriate burial histories in the East Greenland Basin are required. | LI Bin LIU Chenglin ZHAO Yue HONG Weiyu PING Yingqi LIANG Dexiu | 2017 | Advances in Polar Science2017，28，4： | 0 |
| 10 | Successive magnetic ordering in two Co^(Ⅱ)-ladder metal-organic frameworks显示文摘Metal-organic frameworks showing successive magnetic ordering are far less common than inorganic compounds.Here,we report two metal-organic frameworks[Co^Ⅱ(ox)(bphy)·0.1(DMF)·0.1(Me OH)]n(1)and[Co3^Ⅱ(ox)3(bphy)2(DMF)2]n(2)comprised of zigzag and necklace Co^Ⅱ-ladders,respectively.Together with a previously reported compound[Co^Ⅱ(ox)(bphy)·0.2(DMF)]n(3)consisting of spiraling zigzag Co^Ⅱ-ladders,these three compounds provide a good system for comparative structural and magnetic studies.Comprehensive magnetic analysis reveals that the three compounds undergo long-range magnetic ordering at^2.6 K but exhibit vastly different short-range magnetic correlations:compound 1 shows short-range spin-canted antiferromagnetism ordering at^14.0 K;compound 2 demonstrates successive short-range antiferromagnetism ordering at^15.5and^12.6 K;compound 3 shows slow magnetic relaxation with Tb≈4.6 K.These results demonstrate long-range magnetic ordering is readily accessible in the frameworks of ox^2-bridging Co^Ⅱ-ladders linked by bphy,where short-range magnetic correlations can be systematicly tuned by the Co^Ⅱ-ladder structures. | Zhu Zhuo Guoling Li Chenglin Shu Wei Wang Caiping Liu Mingyan Wu Yougui Huang Maochun Hong | 2021 | Science China Chemistry2021，64，1： | 0 |
| 11 | A long-term retaining molecular coating for corneal regeneration显示文摘Corneal injuries will cause corneal surface diseases that may lead to blindness in millions of people worldwide.There is a tremendous need for biomaterials that can promote corneal regeneration with practical feasibility.Here we demonstrate a strategy of a protein coating for corneal injury regeneration.We synthesize an o-nitrosobenzaldehyde group(NB)-modified gelatin(GelNB),which could adhere directly to the corneal surface with covalent bonding to form a thin molecular coating.The molecular coating could avoid rapid clearance and provide a favorable environment for cell migration,thereby effectively accelerating corneal repair and regeneration.The histological structure of the regenerated cornea is more similar to the native cornea.This molecular coating can be used conveniently as an eye drop solution,which makes it a promising strategy for corneal regeneration. | Yi Zhang Chenglin Li Qiuwen Zhu Renjie Liang Chang Xie Shufang Zhang Yi Hong Hongwei Ouyang | 2021 | Bioactive Materials2021，6，12： | 0 |
| 12 | Intrinsically flexible all-carbon-nanotube electronics enabled by a hybrid organic-inorganic gate dielectric显示文摘The advancement of Internet of Things has stimulated huge demands on low-voltage flexible electronics.Carbon-nanotube(CNT)-based electronics are of great promise to this end for their intrinsic flexibility,high carrier mobility,and capability to synthesize as semiconducting or metallic to serve as the channels,electrodes,and interconnects of circuits.However,the gate dielectric often has to adopt brittle oxides,which can seriously limit the device flexibility.Herein,we show that a hybrid polyimide-Al2O3 material can serve as a good gate dielectric to realize truly intrinsic flexibility of transistors and circuits based on CNTs.With this hybrid dielectric,high-performance all-CNT transistors and integrated circuits of inverters,ring oscillators,and logic gates are demonstrated.Particularly,the inverters exhibit a remarkably high gain of 342.5 and can be used as an analog amplifier for millivolt small signals.Ultralow voltage(50 mV)operation is also feasible,which highlights the great promise for low-power applications. | Qiuyue Huang Jialiang Wang Chenglin Li Jiahao Zhu Wanting Wang Youchao Huang Yiming Zhang Hailong Jiao Shengdong Zhang Hong Meng Min Zhang Xinwei Wang | 2022 | npj Flexible Electronics2022，6，1： | 0 |
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