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Metagenomic analysis reveals wide distribution of phototrophic bacteria in hydrothermal vents on the ultraslow-spreading Southwest Indian Ridge

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Marine Life Science & Technology 2022年第2期4卷 255-267页

作者： Hong Chen Deng Hui Li Ai Jun Jiang Xue Gong Li Shi Jun Wu Jian Wei Chen Meng jie Qu Xiao Qing Qi jie dai Rui Zhao Wei-Jia Zhang Shan Shan Liu Long-Fei Wu Laboratory of Deep Sea Microbial Cell Biology Institute of Deep Sea Science and EngineeringChinese Academy of SciencesSanya572000China University of Chinese Academy of Sciences Beijing100864China France-China Joint Laboratory for Evolution and Development of Magnetotactic Multicellular Organisms(LIA-MagMC) MarseilleFrance/SanyaChina Institution of Deep-Sea Life Sciences IDSSE-BGIIDSTI-CAS/Hainan Deep-Sea Technology LaboratorySanya/ShenzhenChina BGI-Qingdao BGI-ShenzhenQingdao266555China Zhejiang University Hangzhou310027China BGI-Shenzhen Shenzhen518083China Qingdao-Europe Advanced Institute for Life Sciences BGI-ShenzhenQingdao266555China Aix Marseille University Centre national de la recherche scientifiqueLaboratoire de Chimie BactérienneInstitut de Microbiologie de la MéditerranéeL’Institut MicrobiologieBioénergies et Biotechnologie13402MarseilleFrance

Deep-sea hydrothermal vents are known as chemosynthetic ***,high temperature vents emit light that hypothetically can drive photosynthesis in this *** studies have sporadically reported the occurrence of phototrophic populations such as cyanobacteria in hydrothermal *** determine how geographically and taxonomically widespread phototrophs are in deep-sea hydrothermal vents,we collected samples from three niches in a hydrothermal vent on the Southwest Indian Ridge and carried out an integrated metagenomic *** determined the typical community structures of microorganisms found in active venting fields and identified populations of known potential chlorophototrophs and *** chlorophyll biosynthetic pathways were identified in all *** contrast,proteorhodopsins were only found in active beehive smoker *** groups possessing potential phototrophy dependent on semiconductors present in hydrothermal vents were also found in these *** systematic comparative metagenomic study reveals the widespread distribution of phototrophic bacteria in hydrothermal vent *** results support the hypothesis that the ocean is a seed bank of diverse *** vent light may provide energy and confer a competitive advantage on phototrophs to proliferate in hydrothermal vent ecosystems.

关键词： Chlorophyll Rhodopsin Phototrophic bacteria Hydrothermal vent Southwest Indian Ridge

New Strategy for Boosting Cathodic Performance of Protonic Ceramic Fuel Cells Through Incorporating a Superior Hydronation Second Phase

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Energy & Environmental Materials 2024年第4期7卷 83-92页

作者： Chuan Zhou Xixi Wang Dongliang Liu Meijuan Fei jie dai Daqin Guan Zhiwei Hu Linjuan Zhang Yu Wang Wei Wang Ryan O'Hayre San Ping Jiang Wei Zhou Meilin Liu Zongping Shao State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 210009China Max Planck Institute for Chemical Physics of Solids NEothnitzer Strasse 40Dresden 01187Germany Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China Department of Metallurgical and Materials Engineering Colorado School of MinesGolden COUSA WA School of Mines:Minerals Energy and Chemical Engineering(WASMMECE)Curtin UniversityPerth WA 6102Australia Suzhou Laboratory Suzhou 215000China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332-0245USA

For protonic ceramic fuel cells,it is key to develop material with high intrinsic activity for oxygen activation and bulk proton conductivity enabling water formation at entire electrode ***,a higher water content which benefitting for the increasing proton conductivity will not only dilute the oxygen in the gas,but also suppress the O_(2)adsorption on the electrode ***,a new electrode design concept is proposed,that may overcome this *** introducing a second phase with high-hydrating capability into a conventional cobalt-free perovskite to form a unique nanocomposite electrode,high proton conductivity/concentration can be reached at low water content in *** addition,the hydronation creates additional fast proton transport channel along the two-phase *** a result,high protonic conductivity is reached,leading to a new breakthrough in performance for proton ceramic fuel cells and electrolysis cells devices among available air electrodes.

关键词： cathode high-hydrating capability proton conductivity protonic ceramic fuel cells

SYNTHESIS AND CHARACTERIZATION OF THE SOLID COMPLEXES OF Mn(Ⅱ), Co(Ⅱ), Cu(Ⅱ), Zn(Ⅱ), Ag(Ⅰ), Cd(Ⅱ) NITRATES WITH DISUBSTITUTED BENZO CROWN ETHERS

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Chinese Chemical Letters 1992年第10期3卷 811-812页

作者： Ai Ru LU Yu jie dai You Ming ZHANG Lian Xiang ZHANG Liu Fang WANG Department of Chemistry Northwest Normal UniversityLanzhou730070 Department of Chemistry Lanzhou University730000 Hebai Medical Institute

Nine new solid complexes of Mn(Ⅱ),Co(Ⅱ),Cu(Ⅱ),Zn(Ⅱ.),Ag(Ⅰ) nitrates with 4',5'-dibromobenzo-15—crown—5(L_A),Ag(Ⅰ),Cd(Ⅱ)nitrates with tetrabromodibenzo—18—crown—6(L_B)and Cu(Ⅱ), Ag(Ⅰ) nitrates with 4'—bromo—5'—nitrobenzo—15—crown-5(L_c),having the compositions of M(NO_2)_2·L·nH_2O(M=Mn,Co, Zn,L=L_A,n=2;M=Cu,L=L_A,n=1.5; M=Cd, L=L_B,n=0; M=Cu,L=Lc,n=2) and AgNO_·L·nCH_3CN(L=LA,n=0; L=L_B,n=1; L=Lc,n=1/2) have been synthesized in nonaqueous solvent. All the isolated complexes have been characterized by elementary analysis, IR and UV spectra, differential thermal and thermogravimetric analysis, X—ray powder diffraction analysis, molar conductance and measuremends of solubility in some general solvents.

关键词： Cd Zn NITRATES WITH DISUBSTITUTED BENZO CROWN ETHERS Ag Cu

不同退火温度In掺杂ZnO薄膜的表面形貌和光学性质

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硅酸盐通报 2010年第1期29卷 214-218页

作者：戴结林合肥师范学院物理与电子工程系合肥230061

用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和紫外-可见分光光度计观察4%(原子分数)In掺杂ZnO薄膜的微结构、表面形貌和光学性质。微结构分析表明:薄膜仍为六角纤锌矿结构,由于In杂质的掺入,使得薄膜结晶度劣化,退火温度对薄膜微结构影... 详细信息

用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和紫外-可见分光光度计观察4%(原子分数)In掺杂ZnO薄膜的微结构、表面形貌和光学性质。微结构分析表明:薄膜仍为六角纤锌矿结构,由于In杂质的掺入,使得薄膜结晶度劣化,退火温度对薄膜微结构影响较小;表面形貌观察结果显示:薄膜表面凹凸不平,450℃退火处理薄膜表面最平坦,尺寸在50～100nm之间小颗粒致密、均匀地分布于起伏的表面;紫外可见透射谱研究结果表明:随着退火温度升高,薄膜光学带宽Eg由3.267eV减小到3.197eV,该结果可能与薄膜表面残余应力发生变化密切相关。

关键词： ZnO薄膜退火温度光学性质

Reflectance transformation imaging of 3D detection for subtle traces

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Chinese Optics Letters 2021年第3期19卷 53-57页

作者： jie dai Lihua Huang Kai Guo Liqing Ling Huijie Huang Laboratory of Information Optics and Optoelectronic Technology Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

This paper reports a detection method of two-dimensional(2 D) enhancement and three-dimensional(3 D) reconstruction for subtle traces with reflectance transformation imaging, which can effectively locate the trace area of interest and extract the normal data of this area directly. In millimeter-and micron-scale traces, during 3 D construction, we presented a method of data screening, conversion, and amplification, which can successfully suppress noise, improve surface and edge quality,and enhance 3 D effect and contrast. The method not only captures 2 D and 3 D morphologies of traces clearly but also obtains the sizes of these traces.

关键词： subtle traces 2D enhancement 3D reconstruction size

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蒸发器集液管结构对芯体表面温度分布的影响

同济大学学报（自然科学版） 2021年第10期49卷 1459-1465页

作者：王东吴承宣戴捷同济大学汽车学院上海201804 上海马勒热系统有限公司研发部上海201206

通过调整蒸发器集液管内部插入隔片位置和开孔尺寸,可以实现蒸发器内部制冷剂分配特性的优化。结果表明,蒸发器集液管内插入带孔隔片能明显改善制冷剂的流量分配特性,从而提高蒸发器芯体制冷性能及其表面温度均匀性。

关键词：平行流蒸发器温度场均匀性两相流流量分配特性

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新型PLC-075电力线数据传输装置

电力系统自动化 2006年第4期30卷 93-97页

作者：代洁汪晓岩国电自动化研究院/南瑞集团公司江苏省南京市210003

介绍了一种新型PLC-075电力线数据传输装置,阐述了基于虚拟载波帧测技术的多虚拟逻辑网络组网、增强型自适应模拟前端、自适应多频段收发、多耦合方式等关键技术;描述了其主要技术参数和应用于架空线和地埋电缆的不同耦合方式,给出了其... 详细信息

介绍了一种新型PLC-075电力线数据传输装置,阐述了基于虚拟载波帧测技术的多虚拟逻辑网络组网、增强型自适应模拟前端、自适应多频段收发、多耦合方式等关键技术;描述了其主要技术参数和应用于架空线和地埋电缆的不同耦合方式,给出了其在城市小区配电自动化中的具体应用实例。实践证明,该装置能有效地解决中压配电线传输特性的动态变化、突发干扰等难题,满足组网通信和实时性要求,可作为不同应用领域的低成本通信解决方案。

关键词：电力线通信电力线数据传榆装置数字载波技术配电自动化组网通信

Numerical　modeling　of　radionuclide　migration　in　porous　media　with　nonequilibrium　sorption

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Journal of Environmental Sciences 1996年第1期8卷 86-93页

作者： Chen Jiajun dai jie(Department of Environmental Engineering,Tsinghua University,Beijing 100084,China)(Tianjin Institute of Geological Investigation and Research,Tianjin 300191,China)Xu Zhaoyi Tian Kaiming(Changchun University of Earth Sciences,Changchun 1 Dept of Envmtl Engrg Tsinghua University Beijing 100084 China

When radionuclides migrate in porous media with water serving as carrier, the mechanism of sorption and desorption is not negligible. nonequilibrium conditions exist in sorption and desorption. In this paper,a numerical model of radionuclide migration with nonequilibrium sorption was *** algorithm of numerical descretizing and direct substituting was adopted in coupling of the convective-dispersive equation and the nonequilibrium sorption isotherm in this model ,and this makes it easier to solve the model numerically.A quantitative analysis is made for the first time that the influence of nonequilibrium sorption, represented by the rate coefficient which shows how quickly the nonequilibrium condition in sorption and desorption reaches equilibrium on the migration of radionuclide,and results show that it affects the migration perceptibly. Finally the model was verified by using the observed data of radionuclide migration test conducted in the field, and which clarified its availability.

关键词： adionuclide migration sorption and desorption nonequilibrium sorption rate coefficient.

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宽频带微波铁氧体双模变极化器

现代雷达 2000年第1期22卷 58-61,77页

作者：戴杰南京电子技术研究所南京210013

应用耦合波理论介绍了微波铁氧体双模变极化器原理 ,给出了设计数表和实验曲线 ,并将设计值、仿真值、实验值三者做比较 ,结果基本一致。

关键词：宽频带耦合波变极化器微波铁氧体