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Chemical Research in Chinese Universities 2012年第6期28卷 936-941页

作者： zhou guang-peng yang yu-lin fan rui-qing Department of Chemistry Harbin Institute of Technology Harbin 150001 P. R. China

Three new gallium complexes formulated as [Ga（PDA）2 ][Ga（H2O）（PDA）（phen）]·4H2O（1）,[Ga（PDA） 2]·（H2IN）·2H2O（2） and [Ga（OH）（PDA）（H2O）] 2（3）（H2PDA=pyridine-2,6-dicarboxylic acid;phen=1,10-phenanthroline;HIN=isonicotinic acid） have been synthesized under hydrothermal *** the mixed-ligand system of complex 1,PDA2 and phen are connected to the central Ga 3＋ cation as tri-and bi-dentate ligands,*** complex 2,each Ga 3＋ cation is six-coordinated by two PDA 2 anions *** 3 shows a binuclear structure,with the bond distance of Ga1― Ga2 being 0.30061（3） *** 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing *** the three complexes exhibit intense blue emission at room temperature in the solid state,which are attributed to π＊-π transition centered on the ligands.

关键词： Gallium complex Crystal structure Luminescent property

Hydrothermal Syntheses, Crystal Structures and Thermal Properties of Two New Organically Templated Open-framework Gallium Phosphites

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Chemical Research in Chinese Universities 2013年第2期29卷 201-205页

作者： zhou guang-peng yang yu-lin fan rui-qing XIE Jia-qing QUAN Xue-jun Department of Chemistry Harbin Institute of Technology Harbin 150001 P. R. China College of Chemistry and Chemical Engineering Chongqing University of Technology Chongqing 400050 P. R. China

Two new open-framework gallium phosphites formulated as （C2N2HI0）***2（OH）（H20）（HPO3）3（I） and （C3N2Hs）2（C3N2H6）Gas（H20）6（HPO3）14（2） were hydrothermally synthesized in the presence of ethylenediamine（en） and imidazole as structure directing agents（SDA）, respectively. Structural analyses reveal that the 3D structures of compounds I and 2 are both built up from the linkage ofGaO6, GaOs（H20） and HPO32 units by sharing vertices. The structure of compound 2 is constructed from well-known 4.6.12-net connecting layers in the AAAA stacking se- quence, which are oenetrated bv the 1D Ga--O--P chains to form a 3D pillared-layered structure.

关键词： Hydrothermal synthesis Crystal structure Gallium phosphite

Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP

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Advances in Climate Change Research 2023年第4期14卷 546-559页

作者： Wen-yu YIN Xin GAO Run GUO peng fan guang-qing zhou International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

The diversity of surface-flux perturbations,especially for heat-flux perturbations,notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system ***,when imposing heat-flux perturbations on the models,strong feedback persists between the atmosphere and the ocean,resulting in nearly doubled heat-flux perturbation over the North Atlantic(NA).Herein,quantitative evaluation of the influences of magnitude change of heat-flux perturbations over the NA on the changes in the Atlantic Meridional Overturning Circulation(AMOC),ocean heat uptake(OHU)and dynamic sea level(DSL)has been conducted by analysis of eight coupled model responses to the heat-flux perturbation experiments in the Flux-Anomaly-Forced Model Inter-comparison *** has been demonstrated that the magnitude of the AMOC change is extremely sensitive to the magnitude change of imposed NA heat-flux perturbation,and the weakening amplitude of the AMOC is nearly halved as the imposed heat-flux perturbation F is halved over the *** most remarkable responses of both DSL and OHU to the magnitude changes of NA heat-flux perturbation have been primarily found in the Atlantic and Arctic basins,especially for the NA *** the added ocean heat uptake(OHUa)and redistributed ocean heat uptake(OHUr)play key roles in OHU changes among the various NA heat-flux perturbation *** magnitude change of NA-mean OHUa is almost linearly related to the imposed NA heat-flux perturbation,while the magnitude change of NA-mean OHUr,which is primarily caused by AMOC change and redistributed heat flux,is not proportional to the imposed NA heat-flux *** is a nearly linear relationship between the magnitude of AMOC change and the OHUr in tropical regions,including the regions in the low-latitude South Atlantic,the tropical Pacific Ocean and the Indian Ocean.

关键词： Heat-flux perturbation Ocean heat uptake North Atlantic Atlantic meridional overturning circulation Coupled general circulation model

A Novel Oxygen-Based Digital Etching Technique for p-GaN/AlGaN Structures without Etch-Stop Layers

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Chinese Physics Letters 2020年第6期37卷 123-126页

作者： yang Jiang Ze-yu Wan guang-Nan zhou Meng-Ya fan Gai-Ying yang R.Sokolovskij guang-rui Xia qing Wang Hong-yu yu School of Microelectronics Southern University of Science and TechnologyShenzhen 518055China Department of Materials Engineering The University of British ColumbiaVancouverBritish Columbia V6T 1Z4Canada Dongguan Institute of Opto-Electronics Peking University Dongguan 523808China Engineering Research Center of Integrated Circuits for Next-Generation Communications(Ministry of Education) Shenzhen 518055China School of Innovation&Entrepreneurship Southern University of Science and TechnologyShenzhen 518055China Shenzhen Institute of the Third Generation Semiconductor Shenzhen 518100China

A novel O2 plasma-based digital etching technology for p-GaN/AlGaN structures without any etch-stop layer was investigated using an inductively coupled plasma(ICP)etcher,with 100 W ICP power and 40 W rf bias *** 40 sccm O2 flow and 3 min oxidation time,the p-GaN etch depth was 3.62 nm per *** surface roughness improved from 0.499 to 0.452 nm after digital etching,meaning that no observable damages were caused by this *** to the dry etch only methods with Cl2/Ar/O2 or BCl3/SF6 plasma,this technique smoothed the surface and could efficiently control the etch depth due to its self-limiting ***,compared to other digital etching processes with an etch-stop layer,this approach was performed using ICP etcher and less demanding on the epitaxial *** was proved to be effective in precisely controlling p-GaN etch depth and surface damages required for high performance p-GaN gate high electron mobility transistors.

关键词： AlGaN BCl3 Oxygen

Isometric 3D Shape Partial Matching Using GD-DNA

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Journal of Computer Science & Technology 2018年第6期33卷 1178-1191页

作者： Guo-guang Du Cong-Li Yin Ming-Quan zhou Zhong-Ke Wu Ya-Chun fan Fu-qing Duan peng-Bo zhou College of Information Science and Technology Beijing Normal University Beijing 100875 China Engineering Research Center of Virtual Reality and Applications Ministry of Education Beijing 100875 China

Isometric 3D shape partial matching has attracted a great amount of interest, with a plethora of applicationsranging from shape recognition to texture mapping. In this paper, we propose a novel isometric 3D shape partial matchingalgorithm using the geodesic disk Laplace spectrum （GD-DNA）. It transforms the partial matching problem into the geodesicdisk matching problem. Firstly, the largest enclosed geodesic disk extracted from the partial shape is matched with geodesicdisks from the full shape by the Laplace spectrum of the geodesic disk. Secondly, Generalized Multi-Dimensional Scalingalgorithm （GMDS） and Euclidean embedding are conducted to establish final point correspondences between the partialand the full shape using the matched geodesic disk pair. The proposed GD-DNA is discriminative for matching geodesicdisks, and it can well solve the anchor point selection problem in challenging partial shape matching tasks. Experimentalresults on the Shape Retrieval Contest 2016 （SHREC＇16） benchmark validate the proposed method, and comparisons withisometric partial matching algorithms in the literature show that our method has a higher precision.

关键词： isometric partial matching geodesic disk Laplace spectrum

Large-scale characteristics of thermokarst lakes across the source area of the Yellow River on the qinghai-Tibetan Plateau

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Journal of Mountain Science 2023年第6期20卷 1589-1604页

作者： LIU Wen-hui zhou guang-hao LIU Hai-rui LI qing-peng XIE Chang-wei LI qing ZHAO Jian-yun ZHANG Qi State Key Laboratory of Plateau Ecology and Agriculture Qinghai UniversityXining 810016China Department of Geological Engineering Qinghai UniversityXining 810016China College of Eco-Environmental Engineering Qinghai UniversityXining 810016China Cryosphere Research Station on the qinghai-Tibet Plateau State Key Laboratory of Cryosphere SciencesNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 73ooooChina

As significant evidence of permafrost degradation,thermokarst lakes play an important role in the permafrost regions by regulating hydrology,ecology,and *** the Sources Area of the Yellow River(SAYR),permafrost degradation has accelerated since the 1980s,and numerous thermokarst lakes have been *** this paper,we use Sentinel-2 images to extract thermokarst lake boundaries and perform a regional-scale study on their geometry across the permafrost region in the *** also explored the spatiotemporal variations and potential drivers from the perspectives of the permafrost,climate,terrain and vegetation *** results showed that there were 47,518 thermokarst lakes in 2021 with a total area of 190.22×106 m^(2),with an average size of 4,003.3 m^(2).The 44,928 ponds(≤10,000 m^(2))predominated the whole lake number(94.1%)but contributed to a small portion of the total lake area(28.8%).With 2,590 features(5.9%),small-sized(10,000 to 100,000 m^(2))and large-sized lakes(>100,000 m^(2))constituted up to 71.2%of the total lake *** lakes developed more significantly in warm permafrost regions than in cold permafrost areas;74.1%of lakes with a total area of 119.6×106 m^(2)(62.9%),were distributed in warm permafrost *** thermokarst lakes were likely to develop within the elevation range of 4,500~4,800 m,on flat terrain(slope<10°),on SE and S aspects and in alpine meadow *** thermokarst lakes in the study region experienced significant shrinkage between 1990 and 2021,characterized by obvious lake drainage;the lake numbers decreased by 5418(56.1%),with a decreasing area of 58.63×106 m^(2)(49.0%).This shrinkage of the thermokarst lake area was attributable mainly to the intensified degradation of rich-ice permafrost thawing arising from continued climate warming,despite the wetting climatic trend.

关键词： Thermokarst lake Spatial characteristic Influencing factor Source area of the Yellow River

In-situ transmission electron microscopy observation of the evolution of dislocation loops and gas bubbles in tungsten during H2+and He+dual-beam irradiation

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Tungsten 2021年第4期3卷 434-447页

作者： Yi-fan Ding Yi-peng Li Xin-Yi Liu guang Ran Xiu-Yin Huang qing Han yang Chen Jin-Chi Huang Zhe-Hui zhou College of Energy Xiamen UniversityXiamen 361102China Fujian Research Center for Nuclear Engineering Xiamen 361102China

Dislocation loop and gas bubble evolution in tungsten were in-situ investigated under 30 keV H_(2)^(+)and He^(+)dual-beam irra-diation at 973 K and 1173 *** average size and number density of dislocation loops and gas bubbles were obtained as a function of irradiation *** quantitative calculation and analysis of the migration distance of 1/2loops at low irradiation dose indicated that the main mechanism of the formation ofloops should be attributed to the high-density helium cluster inducement mechanism,instead of the 1/2loop reaction mechanism.H2+and He+dual-beam irradiation induced the formation ofloops and 1/2loops,while increasing the irradiation temperature would increaseloop *** percentage ofloops was approximately 18.6%at 973 K and increased to 22.9%at 1173 *** loop reaction between two 1/2loops to form a large-sized 1/2loop was in-situ observed,which induced not only the decrease of the number of 1/2loops but also the significant increase of their ***loops impeded the movement of dislocation line and tended to escape from it instead of being *** the increase of irradiation dose,the yield strength increment(Δ_(σloop))caused by the change of loop size and density increased first and then decreased slightly,while the yield strength increment(Δ_(σbubble))caused by the change of bubble size and density always ***,within the current irradiation dose range,Δ_(σloop)was much larger thanΔ_(σbubble).

关键词： Tungsten H-He dual-beam irradiation In-situ transmission electron microscopy observation Loop

Next generation sequencing reveals co-existence of hereditary spherocytosis and Dubin–Johnson syndrome in a Chinese gril: A case report

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World Journal of Clinical Cases 2019年第20期7卷 3303-3309页

作者： yuan Li yang Li yang yang Wen-rui yang Jian-Ping Li guang-Xin peng lin Song Hui-Hui fan Lei Ye You-Zhen Xiong Zhi-Jie Wu Kang zhou Xin Zhao Li-Ping Jing Feng-Kui Zhang Li Zhang Anemia Therapeutic Center Institute of Hematology and Blood Diseases HospitalCAMS and PUMC

BACKGROUND Hereditary spherocytosis(HS)is a hereditary disease of hemolytic anemia that occurs due to the erythrocyte membrane ***–Johnson syndrome(DJS),which commonly results in jaundice,is a benign hereditary disorder of bilirubin clearance that occurs only *** co-occurrence of HS and DJS is extremely *** recently diagnosed and treated a case of co-occurring HS and *** SUMMARY A 21-year-old female patient presented to our department because of severe jaundice,severe splenomegaly,and mild anemia since *** eventually confirmed the diagnosis of co-occurring DJS and HS by next generation sequencing(NGS).The treatment of ursodeoxycholic acid in combination with phenobarbital successfully increased hemoglobin and reduced total bilirubin and direct *** The routine application of NGS can efficiently render a definite diagnosis when inherited disorders are suspected.

关键词： Hereditary spherocytosis Dubin–Johnson syndrome Hemolytic anemia Jaundice Next generation sequencing ABCC2 SPTB Case report

2,6-吡啶二甲酸镝配位聚合物的合成、晶体结构及其发光性能研究

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光谱学与光谱分析 2011年第7期31卷 1734-1738页

作者：范瑞清王平任锦宇周广鹏杨玉林哈尔滨工业大学化学系黑龙江哈尔滨150001

以2,6-吡啶二甲酸为配体,在水热条件下合成出一个具有(4.82)拓扑结构的二维稀土镝配位聚合物[Dy(PDA)(HPDA)]n(1)(H2PDA=2,6-吡啶二甲酸)。通过元素分析,1H NMR,IR和X射线单晶衍射对其进行结构表征。X射线单晶衍射分析结果表明,该化合... 详细信息

以2,6-吡啶二甲酸为配体,在水热条件下合成出一个具有(4.82)拓扑结构的二维稀土镝配位聚合物[Dy(PDA)(HPDA)]n(1)(H2PDA=2,6-吡啶二甲酸)。通过元素分析,1H NMR,IR和X射线单晶衍射对其进行结构表征。X射线单晶衍射分析结果表明,该化合物属单斜晶系,P2(1)/c空间群。该化合物由配体的氧原子连接,形成具有(4.82)型拓扑的二维层状结构,相邻层间的π—π堆积弱相互作用使之形成三维超分子。测定了配体和1在固态室温条件的紫外吸收和荧光光谱。在室温下,配体和配合物均在280 nm处有一宽谱带强吸收,这可以归属于以配体为中心的π→π*跃迁。当激发波长为280 nm时,1呈现出基于配体为中心的荧光发射峰和稀土Dy3+的特征荧光发射峰。研究了配位聚合物1的固态荧光寿命,荧光衰减过程包含双组分,相应的荧光寿命1τ和2τ分别是3.61和12.81μs。

关键词：水热合成镝配位聚合物晶体结构荧光性能

Preliminary measurement of the spherical proportional counter prototype

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Radiation Detection Technology and Methods 2018年第1期2卷 122-127页

作者： Zhi-Min Wang Charling Tao Chang-Jiang Dai Hai-Qiong Zhang peng Zhang Ning zhou Yi Tao Chen-yang Tang rui-guang Wang Chang-Gen yang Ruo-qing Liu Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Tsinghua University Beijing 100084China Marseille Particle Physics Center(CPPM) 13233 MaseillesFrance University of Chinese Academy of Science BeijingChina

Introduction A novel large-volume spherical proportional counter(SPC)aims at relatively large target masses with low threshold,low background,and possible particle identification,with an extremely simple and robust *** In this paper,we present some progress on the study of such a kind of detector,with a prototype in Beijing for alpha neutron measurement and long-term running *** Preliminary understanding was achieved with a SPC *** can measure alpha and neutron and show the capability of particle ***-term running of the detector shows that it is a good stable *** It needs more tests and studies to reach lower energy region,better particle identification,more understanding of efficiency,*** The SPC,in principle,is capable of detecting very low energy nuclear recoils(in the few tens keV energy region)and smaller energy with lower pressure,thus being a very good candidate for rare event searches.

关键词： Gas detector SPC Alpha Neutron PSD