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Dispersion hydrophobic electrolyte enables lithium-oxygen battery enduring saturated water vapor

Journal of Energy Chemistry 2022年第1期31卷 511-519,I0014页

作者： yinan zhang Fangling Jiang Hao Jiang Osamu Yamamoto Tao zhang State Key Lab of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049.China Key Laboratory for Ultrafine Materials of Ministry Education School of Materials Science and EngineeringEast China University Science and TechnologyShanghai 200237China Department of Chemistry Faculty of EngineeringMie UniversityTsu 514-8507Japan

Li-O_(2) batteries gain widespread attention as a can didate for next-generati on energy storage devices due to their extraordinary theoretic specific *** semi-open structure of Li-O_(2) batteries causes many parasitic reactions,especially related to *** is a double-edged sword,which destroys Li anode and simultaneously triggers a solution-based pathway of the discharge *** this work,hexamethyldisilazane(HMDS)is introduced into the electrolyte of an aprotic Li-O_(2) *** has a strong ability to combine with a trace of water to gen erate a hydrophobic hexamethyldisiloxa ne(MM),which eliminates water from the electrolyte decomposition and then prevents the Li anode from producing the insulating LiOH with *** this case,the hydrophobic MM disperses in the ether-based electrolyte,forming a dispersion hydrophobic *** electrolyte can anchor water from the environment on the cathode side,which triggers a solution-based pathway and regulates the growth morphology of the discharge product and consequently increases the discharge *** with the Li-O_(2) battery without the HMDS,the HMDS-containing Li-O_(2) battery contributes an about 13-fold increase of cyclability(400 cycles,1800 h)in the extreme environment of saturated water *** work opens a new approach for directly operating aprotic Li-O_(2) batteries in ambient air.

关键词： Hexamethyldisilazane Dispersion hydrophobic electrolyte Saturated water vapor pressure Li-O2 battery Long life

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A general model for trailing edge serrations simulation on wind turbine airfoils

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Theoretical & Applied Mechanics Letters 2021年第4期11卷 236-244页

作者： Huijing Cao Mingming zhang yinan zhang Teng Zhou Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China The Key Laboratory of Wind Energy Utilization of CAS Beijing 100190China University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory For Clean energy Chinese Academy of SciencesDalian 116023China

Trailing edge serrations(TESs)are capable of noticeably suppressing the turbulent trailing edge noise induced by rotating wind turbine blades and become an integral part of a ***,the challenges involved in the dimensional design of serration height 2 h,wavelengthλand flap angleϕare yet to be dealt with in a satisfactory *** address the problem,a general model for simulating the effects of serrations on the hydrodynamic and aeroacoustic performance is proposed due to its ease of use and relatively low requirements for user *** solid serrations are replicated by momentum sources calculated by its aerodynamic ***,a case relevant to wind turbine airfoil is examined,a hybrid improved delay detached eddy simulation(IDDES)method coupled with FW-H integration is deployed to obtain the flow features and far-field sound pressure *** is found that the modeling method could reproduce the flow field and noise as serrated airfoil.

关键词： Wind turbine airfoil Trailing edge serrations Trailing edge noise Modeling method

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The Discovery of Magnesioferrite from Au (Fe, Cu) Magnesian Skarn Deposits and Study of the Magnesioferrite-Magnesiomagnetite Series

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Acta Geologica Sinica(English Edition) 1998年第4期72卷 382-391页

作者： ZHAO Yiming zhang yinan BI Chengsi GUO Lihe Institute of Mineral Deposits Chinese Academy of Geological Sciences 26 Baiwanzhuang Rd. Beijing 100037

Abstract: Magnesioferrite, a rare metasomatic mineral, was discovered for the first time in China from the Qinlou Au (Fe, Cu) magnesian skarn deposit, Sanpu, Huaibei, Auhui Province, and the Mulonggou Fe (Mo, Cu) magnesian skarn deposit, Luonan County, Shaanxi Province. In this paper, the geological setting, mineral associations, chemical composition, some physical properties, X-ray powder diffraction data and infrared spectroscopy of magnesioferrite and magnesiomagnetite are discussed. Magnesioferrite contains 17.66%–13.48% of MgO. Its main associated minerals are clinohumite, chondrodite, serpentine, calcite and magnesiomagnetite. The density of magnesioferrite is 4.537–4.720, reflectances in percent are: 17.8–18.1, hardness is 838–900 kg/mm2, and the cell parameter ao = 8.371–8.379 ?. A systematic study of the magnesioferrite-magnesiomagnetite-magnetite series suggests that along with the increase of magnesioferrite molecules in the mineral, the density, reflectances and cell parameters decrease correspondingly, the hardness heightens, and the infrared absorption spectral band becomes wider. The authors consider that magnesioferrite is a product of contact metasomatism between hypabyssal intermediate-acid intrusions and dolomitic marble. It was formed in shallow exocontact zones under relatively oxidized conditions.

关键词： magnesioferrite magnesiomagnetite Au (Fe Cu) magnesian skarn Anhui Shaanxi

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Uncertain information fusion with robust adaptive neural networks-fuzzy reasoning

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Journal of Systems Engineering and Electronics 2006年第3期17卷 495-501页

作者： zhang yinan Sun Qingwei Quan He Jin Yonggao Quan Taifan Dept. of Electronics and Communication Engineering Harbin Inst. of Technology Harbin 150001 P. R. China Mobile Communications Corporation of China Harbin 150001 P. R. China Dept. of Electronics and Information Engineering of Yanbian Univ. Yanbian 617100 P. R. China

In practical multi-sensor information fusion systems, there exists uncertainty about the network structure, active state of sensors, and information itself （including fuzziness, randomness, incompleteness as well as roughness, etc）. Hence it requires investigating the problem of uncertain information fusion. Robust learning algorithm which adapts to complex environment and the fuzzy inference algorithm which disposes fuzzy information are explored to solve the problem. Based on the fusion technology of neural networks and fuzzy inference algorithm, a multi-sensor uncertain information fusion system is modeled. Also RANFIS learning algorithm and fusing weight synthesized inference algorithm are developed from the ANFIS algorithm according to the concept of robust neural networks. This fusion system mainly consists of RANFIS confidence estimator, fusing weight synthesized inference knowledge base and weighted fusion section. The simulation result demonstrates that the proposed fusion model and algorithm have the capability of uncertain information fusion, thus is obviously advantageous compared with the conventional Kalman weighted fusion algorithm.

关键词： uncertain information information fusion neural networks fuzzy inference robust estimate.

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Exceeding the limit of plasmonic light trapping in textured screen-printed solar cells using Al nanoparticles and wrinkle-like graphene sheets

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Light(Science & Applications) 2013年第1期2卷 107-112页

作者： Xi Chen Baohua Jia yinan zhang Min Gu Centre for Micro-Photonics Faculty of Engineering and Industrial SciencesSwinburne University of TechnologyHawthornVictoria 3122Australia

The solar cell market is predominantly based on textured screen-printed solar *** to parasitic absorption in nanostructures,using plasmonic processes to obtain an enhancement that exceeds 2.5%of the short-circuit photocurrent density is *** this paper,a 7.2%enhancement in the photocurrent density can be achieved through the integration of plasmonic Al nanoparticles and wrinkle-like graphene *** the first time,we experimentally achieve Al nanoparticle-enhanced solar *** innovative thermal evaporation method is proposed to fabricate low-coverage Al nanoparticle arrays on solar *** to the ultraviolet(UV)plasmon resonance of Al nanoparticles,the performance enhancement of the solar cells is significantly greater than that from Ag ***,we deposit wrinkle-like graphene sheets over the Al nanoparticle-enhanced solar *** with planar graphene sheets,the bend carbon layer also exhibits a broadband light-trapping *** results exceed the limit of plasmonic light trapping in textured screen-printed silicon solar cells.

关键词： Al nanoparticles plasmonic light trapping screen-printed solar cells wrinkle-like graphene sheets

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Hydrothermal Synthesis of PEG-capped ZnS：Mn2＋ Quantum Dots Nanocomposites

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Chemical Research in Chinese Universities 2014年第1期30卷 176-180页

作者： zhang yinan JIANG Dong HE Zhi YU Yunwu zhang Haibo JIANG Zhenhua Engineering Research Center of High Performance Plastics Ministry of EducationJilin University Changchun 130012 P. R. China State Key Laboratory of Superhard Materials College of Chemistry Jilin University Changchun 130012 P. R. China

Water-soluble Mn2＋-doped ZnS nanocrystals surface capped with polyethylene glycol（expressed as PEG-ZnS：Mn2＋） were synthesized in aqueous solution with PEG as surface modifier without ligand *** particles were obtained via chemical precipitation method at 100 ℃ with an average diameter of 3 nm and a zinc blende *** PEG modified on the surface of PEG-ZnS：Mn2＋ nanocrystals rendered the nanocrystals water soluble and *** the PEG-ZnS：Mn2＋ nanocrystals have the potential application in molecular assembly and biological fluorescence *** effects of the Mn2＋ concentration,stabilizer concentration,and synthesis time on the photoluminescence（PL） intensity of ZnS：Mn2＋ QDs were also investigated.

关键词： ZnS Mn2+-doped Polyethylene glycol(PEG) Nanocomposite

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Rock magnetic properties and palaeomagnetic results of sediments from a stone implement layer in the Bose Basin, Guangxi

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Science China Earth Sciences 2008年第3期51卷 441-450页

作者： YANG XiaoQiang ZHU ZhaoYu zhang yinan LI HuaMei ZHOU WenJuan YANG Jie Department of Earth Sciences Sun Yat-Sen UniversityGuangzhou 510275China Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China School of Environmental Sciences and Engineering Sun Yat-Sen UniversityGuangzhou 510275China Shenzhen Municipal Bureau of Land Resources and Housing Management Shenzhen 518301China

Directional samples were taken to study rock magnetism and palaeomagnetic records from the Dongsheng profile, which is 5 m thick and on the northwest edge of the Bose Basin. Mineralogy and rock magnetism of typical samples indicate that coarse granular titanomagnetite, and fine-grained hematite, superparamagnetic maghemite formed by pedogenesis are in the sediment, which has undergone many transformative processes during different stages of pedogenesis. Parallel samples were taken for thermal demagnetization (TH) (0 to 680°C) and alternating field (AF) demagnetization (0 to 80 mT) respectively. Experimental results of these two kinds of demagnetization illustrate that there are two or more magnetic components in the samples. Intensity of NRM decreases by almost 60% to 90% rapidly when the temperature ranges from 100°C to 350°C, with a steady magnetic component. It is impossible to analyze the magnetic components at high temperature because those fluctuate widely when the temperature is higher than 400°C. Steady magnetic components from 100°C to 350°C indicate that the remanence was mainly carried by fine-grained hematite formed by pedogenesis, reflecting a change in the geomagnetic field while the magnetite was being oxidized into hematite by chemical weathering after deposition. The formative age of the sediments cannot be obtained by magnetic methods in this profile.

关键词： Bose Basin Dongsheng profile palaeomagnetic records

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Identification of lymph node metastasis by computed tomography in early gastric cancer

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Chinese Journal of Cancer Research 2021年第6期33卷 671-681页

作者： Jingtao Wei yinan zhang Zhilong Wang Xiaojiang Wu Ji zhang Zhaode Bu Jiafu Ji Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Gastrointestinal Cancer CenterPeking University Cancer Hospital&InstituteBeijing 100142China Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Department of RadiologyPeking University Cancer Hospital&InstituteBeijing 100142China

Objective:Lymph node status is critical when selecting treatment methods for patients with early gastric cancer(EGC).The aim of this study was to assess the diagnostic value of computed tomography(CT)for detection of lymph node metastasis(LNM)in patients with ***:We retrospectively analyzed patients who had pathologically confirmed EGC between November2010 and January *** 1:1 propensity score matching,65 patients with LNM and 65 patients without LNM were retained for *** long diameter(LD)and short diameter(SD)of all visualized lymph nodes in all stations were *** diagnostic value of LNM was assessed with receiver operating characteristic ***:Among 130 patients,we found a total of 558 lymph nodes on the CT *** the diagnostic indicators,the number,sum of LD and sum of SD of lymph nodes greater than 3 mm had better *** areas under the curve were all greater than *** for different regions,the optimal cutoff values of number,the sum of LD and sum of SD were determined as follows:overall,≥4,19.9 mm and 13.5 mm;left gastric artery basin,≥3,15.7 mm and 8.6 mm;right gastroepiploic artery basin,≥2,8.6 mm and 7.0 ***:CT is valuable for diagnosing LNM in EGC *** number,sum of LD and sum of SD of lymph nodes greater than 3 mm are preferable *** regional lymph nodes have different optimal criteria for predicting LNM in ECG patients.

关键词： Computed tomography lymphatic metastasis early gastric cancer lymphatic basin

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Plasmonic light trapping for wavelength-scale silicon solar absorbers

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Frontiers of Optoelectronics 2016年第2期9卷 277-282页

作者： yinan zhang Min GU Centre for Micro-Photonics Faculty of Science Engineering and Industrial Sciences Swinburne University of Technology Hawthorn VIC 3122 Australia Artificial-Intelligence Nanophotonics Laboratory School of Science RMIT University Melbourne VIC 3001 Australia

Light trapping is of critical importance for constructing high efficiency solar cells. In this paper, we first reviewed the progress we made on the plasmonic light trapping on Si wafer solar cells, including AI nanoparticle （NP）/SiNx hybrid plasmonic antireflection and the Ag NP light trapping for the long-wavelength light in ultrathin Si wafer solar cells. Then we numerically explored the maximum light absorption enhancement by a square array of Ag NPs located at the rear side of ultrathin solar cells with wavelength-scale Si thickness. Huge absorption enhancement is achieved at particular long wavelengths due to the excitation of the plasmon-coupled guided resonances. The photocurrent generated in 100 nm thick Si layers is 6.8 mA/cm2, representing an enhancement up to 92% when compared with that （3.55 mA/cm2） of the solar cells without the Ag NPs. This study provides the insights of plasmonic light trapping for ultrathin solar cells with wavelength-scale Si thickness.

关键词： solar cells light trapping plasmonic ultrathinSi wavelength-scale

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Hetero-assembly of gold nanoparticles on a DNA origami template

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Science China Chemistry 2016年第6期59卷 730-734页

作者： Jie Chao yinan zhang Dan Zhu Bing Liu Chengjun Cui Shao Su Chunhai Fan Lianhui Wang Key Laboratory for Organic Electronics & Information Displays Institute of Advanced Materials National Syngerstic Innovation Center for Advanced Materials Nanjing University of Posts & Telecommunications Nanjing 210023 China Division of Physical Biology and Bioimaging Center Shanghai Synchrotron Radiation Facility CAS Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

Hetero-assembling of spherical building blocks with well-defined spatial distribution holds great significance in developing chiral nanostructures. Herein, a strategy for hetero-assembling of gold nanoparticles(Au NPs) was demonstrated using rigid bifacial DNA origami as templates. By tuning the sizes and the fixed location of Au NPs on DNA origami, right-handed and left-handed Au NPs nanostructures were respectively constructed. Gel electrophoresis indicated the formation of the DNA origami-Au NPs complex and transmission electron microscopy(TEM) visually displayed the arrangement of Au NPs in these two chiral structures. The spatial configuration and 3D geometry of Au NPs were further illustrated by the stereographic TEM with tilting angles from ?30° to 30°. This strategy provides a universal approach to construct the asymmetrical 3D geometries, which may have potential applications in biomimicking and nanophotonics.

关键词： hetero-assembly DNA origami gold nanoparticles chiral structure

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