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Chinese Journal of Chemistry 2021年第7期39卷 1916-1922页

作者： Xian-Liang Wang xing-hao yin Jun-Zhao Xiao Xue-Shun Jia Liang yin CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences345 Lingling RoadShanghai200032 China Department of Chemistry Shanghai University99 Shangda RoadShanghai200444 China

Main observation and conclusion A general synthesis of chiral 1,3-disubstituted allylsilanes is established through copper(I)-catalyzed asymmetric 1,4-conjugate silylation ofα,β-unsaturated sulfones and subsequent Julia-Kocienski *** modification of McQuade's NHC ligand,the catalytic asymmetric conjugate silylation with a broad substrate scope is achieved in high enantioselectivity.

关键词： Chiral allylsilanes Silylation Olefination Allylation Asymmetric catalysis

Low-Temperature Fabrication of Stable Black-Phase CsPbI₃ Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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NANO-MICRO LETTERS 2025年第1期17卷 1-14页

作者： Zhao, yingjie Sun, Yicheng Pei, Chaoxin yin, xing Li, Xinyi hao, Yi Zhang, Mengru Yuan, Meng Zhou, Jinglin Chen, Yu Song, Yanlin Zhengzhou Univ Coll Chem Zhengzhou 450001 Peoples R China Zhengzhou Univ Pingyuan Lab Zhengzhou 450001 Peoples R China Chinese Acad Sci Inst Chem Key Lab Green Printing Beijing 100190 Peoples R China Chinese Acad Sci Tech Inst Phys & Chem Key Lab Bioinspired Mat & Interfacial Sci Beijing 100190 Peoples R China Chinese Acad Sci Inst High Energy Phys Beijing 100049 Peoples R China

Low-temperature fabrication of black-phase CsPbI3 perovskite films is first demonstrated by using diphenylphosphinic chloride additive under 30-50 degrees C, arising from the steric effect and chloride insertion ***-area high-quality all-inorganic perovskite films with fewer defects enhanced crystallographic orientation, and excellent environmental stability is *** record performances are demonstrated for flexible wearable photodetectors with a responsivity of 42.1 A W-1, a detectivity of 1.3 x 1014 Jones, high-fidelity image, photoplethysmography sensor functions, and high mechanical stability. Flexible wearable optoelectronic devices fabricated from organic-inorganic hybrid perovskites significantly accelerate the development of portable energy, biomedicine, and sensing fields, but their poor thermal stability hinders further applications. Conversely, all-inorganic perovskites possess excellent thermal stability, but black-phase all-inorganic perovskite film usually requires high-temperature annealing steps, which increases energy consumption and is not conducive to the fabrication of flexible wearable devices. In this work, an unprecedented low-temperature fabrication of stable black-phase CsPbI3 perovskite films is demonstrated by the in situ hydrolysis reaction of diphenylphosphinic chloride additive. The released diphenyl phosphate and chloride ions during the hydrolysis reaction significantly lower the phase transition temperature and effectively passivate the defects in the perovskite films, yielding high-performance photodetectors with a responsivity of 42.1 A W-1 and a detectivity of 1.3 x 1014 Jones. Furthermore, high-fidelity image and photoplethysmography sensors are demonstrated based on the fabricated flexible wearable photodetectors. This work provides a new perspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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考虑潮汐影响的离散型泊位和岸桥集成调度

运筹与管理 2017年第6期26卷 167-175页

作者：郑红星尹昊曹红雷石岳大连海事大学交通运输管理学院辽宁大连116026

泊位和岸桥是集装箱港口最紧缺的资源,二者的调度问题存在很强的内在关联。针对大型船需乘潮进出港的离散型泊位,为提高集装箱码头运作效率和客户满意度,将泊位分配、岸桥指派和岸桥调度集成为一体。首先,考虑潮汐的影响以及岸桥作业中... 详细信息

泊位和岸桥是集装箱港口最紧缺的资源,二者的调度问题存在很强的内在关联。针对大型船需乘潮进出港的离散型泊位,为提高集装箱码头运作效率和客户满意度,将泊位分配、岸桥指派和岸桥调度集成为一体。首先,考虑潮汐的影响以及岸桥作业中可动态调度的现实,以计划期内所有抵港船舶的岸桥作业成本和滞期成本之和最少为目标,建立一个混合整数规划模型,然后设计了一个嵌入启发式规则的遗传算法对其进行求解。最后,算例结果中给出了每艘船舶在确切时刻对应的具体岸桥和每个岸桥的动态作业时间窗,并通过与单独优化的方案对比,验证了集成方案的有效性。

关键词：潮汐泊位分配岸桥指派和调度集成调度遗传算法

Jupiter: a modern federated learning platform for regional medical care

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Science China(Information Sciences) 2021年第10期64卷 152-165页

作者： Ju xing Jiadong TIAN Zexun JIANG Jiali CHENG hao yin Department of Automation Tsinghua University School of Cyberspace Security Beijing University of Posts and Telecommunications Department of Computer Science and Technology Tsinghua University College of Engineering Northeastern University

With the emergence of AI technologies, intrinsic value of data is released and takes tremendous effects on numerous industries. In the context of regional medical care, data sharing and cooperating is in high demand, which can bring both financial and societal benefits. At present, however, medical data are locked inside medical facilities owing to legal risks and economic considerations. How to bring AI technologies into full play under this circumstance is a big challenge. In this paper, we propose Jupiter, an easy-to-use,secure, and high-performance platform for federated machine learning. Jupiter constructs a secure and highperformance aggregator cluster with SGX to efficiently aggregate the encrypted model parameters. Jupiter employs a stateful design to cooperate with medical facilities in regional medical systems with a fixed network connection. By providing an innovative programming abstraction, Jupiter makes model development more friendly to developers. The experiments show that with a low memory footprint, the throughput of a single node on an ordinary PC can reach 300 MB/s(with slice size fixed to 64 KB), and the aggregation primitive we built can process 11 k aggregations per second.

关键词： federated learning programming abstraction SGX high-performance

Distribution and bioavailability of mercury in size-fractioned atmospheric particles around an ultra-low emission power plant in Southwest China

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Journal of Environmental Sciences 2024年第4期138卷 141-152页

作者： Wei Zhang Jinjuan Li hao Qiu xingqiang Guo Zhijun Fei Yi xing Deliang yin College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China College of Resources and Environmental Engineering Guizhou Institute of TechnologyGuiyang 550003China Key Laboratory of Karst Georesources and Environment(Guizhou University) Ministry of EducationGuiyang 550025China School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China

Ultra-low emission(ULE)technology retrofits significantly impact the particulate-bound mercury(Hg)emissions from coal-fired power plants(CFPPs);however,the distribution and bioavailability of Hg in size-fractioned particulate matter(PM)around the ULE-retrofitted CF-PPs are less ***,total Hg and its chemical speciation in TSP(total suspended particles),PM_(10)(aerodynamic particle diameter≤10μm)and PM_(2.5)(aerodynamic particle diameter≤2.5μm)around a ULE-retrofitted CFPP in Guizhou Province were *** PM_(2.5)concentration was higher around this ULE-retrofitted CFPP than that in the intra-regional urban cities,and it had higher mass Hg concentration than other sizefractioned *** Hg concentrations in PM had multifarious sources including CFPP,vehicle exhaust and biomass combustion,while they were significantly higher in autumn and winter than those in other seasons(P40%).Mass concentrations of exchangeable,HCl-soluble,elemental,and residual Hg in PM_(2.5)were higher than those in other size-fractioned PM,and were markedly elevated in autumn and winter(P<0.05).In PM_(2.5),HCl-soluble Hg presented a significantly positive relationship with elemental Hg(P<0.05),while residual Hg showed the significantly positive relationships with HCl-soluble Hg and elemental Hg(P<0.01).Overall,these results suggested that atmospheric PM-bound Hg around the ULE-retrofitted CFPP tends to accumulate in finer PM,and has higher bioavailable fractions,while has potential transformation between chemical speciation.

关键词： Size-fractioned particles Mercury Chemical speciation Coal-fired power plant Ultra-low emission

Prognostic and biological role of the N-Myc downstream-regulated gene family in hepatocellular carcinoma

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World Journal of Clinical Cases 2022年第7期10卷 2072-2086页

作者： Xin yin hao Yu xing-Kang He Sen-Xiang Yan Department of Radiation Oncology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Department of Gastroenterology Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina

BACKGROUND The N-Myc downstream-regulated gene(NDRG)family is comprised of four members(NDRG1-4)involved in various important biological ***,there is no systematic evaluation of the prognostic of the NDRG family in hepatocellular carcinoma(HCC).AIM To analyze comprehensively the biological role of the NDRG family in *** The NDRG family expression was explored using The Cancer Genome *** methylation interactive visualization database was used for methylation analysis of the NDRG *** NDRG family genomic alteration was assessed using the ***-sample Gene Set Enrichment Analysis was used to determine the degree of immune cell infiltration in *** NDRG1 and NDRG3 were up-regulated in HCC,while NDRG2 was *** with expression patterns,high expression of NDRG1 and NDRG3 was associated with poor survival outcomes(P<0.05).High expression of NDRG2 was associated with favorable survival(P<0.005).An NDRG-based signature that statistically stratified the prognosis of the patients was *** percentage of genetic alterations in the NDRG family varied from 0.3%to 11.0%,and the NDRG1 mutation rate was the *** 1-3 expression was associated with various types of infiltrated immune *** ontology analysis revealed that organic acid catabolism was the most important biological process related to the NDRG *** Set Enrichment Analysis showed that metabolic,proliferation,and immune-related gene sets were enriched during NDRG1 and NDRG3 high expression and NDRG2 low *** Overexpression of NDRG1 and NDRG3 and down-expression of NDRG2 are correlated with poor overall HCC *** results may provide new insights into the indispensable role of NDRG1,2,and 3 in the development of HCC and guide a promising new strategy for treating HCC.

关键词： N-Myc downstream-regulated gene family Bioinformatics Hepatocellular carcinoma Prognosis Tumor-infiltrating immune cells

Experimental research and analysis of three-finger micro-tweezers

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光学精密工程 2005年第5期13卷 570-574页

作者： HUANG Wen-hao xing hao Department of Precision Machinery and Precision Instrument University of Science and Technology of China HeFei 230027 China

A new type of three-finger micro-tweezer driven by electro-static force was developed for stable manipulation and assembly of micro devices. The whole system consists of micro-tweezers and a specially designed high frequency AC power supply. The free end of the fingers closes and opens with the increase and decrease of the voltage. The tweezers can grasp and manipulate micro objects at size from 30～100 μm. A quantitative simulation method based on boundarx element method(BEM) and equation of energy conservation is introduced to analyze the non-linear behaviors of the tweezer closure. The simulation results agree well with the experimental data.

关键词：镊子 MEMS 微电子机械系统数值模拟

A new panaxadiol from the acid hydrolysate of Panax ginseng

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Chinese Chemical Letters 2009年第6期20卷 687-689页

作者： Li Na Tao Qin Meng Jian Yuan yin Rui xing hao Ran Guo Department of Traditional Chinese Medicinal Chemistry Pharmacy College Jilin University Changchun 130021 China

A new panaxadiol （compound 1） was obtained from the acid hydrolysate of the total ginsenosides of Panax ginseng C. A. Meyer （Araliaceae）. On the basis of spectroscopic data and single-crystal X-ray diffraction dat... 详细信息

关键词： Panax ginseng Ginsenoside Acid hydrolysate

Particle deposition patterns on high-pressure turbine vanes with aggressive inlet swirl

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Chinese Journal of Aeronautics 2022年第3期35卷 75-89页

作者： xing YANG Zihan hao Zhenping FENG Shaanxi Engineering Laboratory of Turbomachinery and Power Equipment Institute of TurbomachinerySchool of Energy and Power EngineeringXi’an Jiaotong UniversityXi’an 710049China

Characteristics of particle migration and deposition were numerically investigated in presence of aggressive swirl at the turbine *** isolated effects of the inlet swirl were considered in detail by shifting the circumferential position of the swirl and by implementing positive and negative swirling *** were released from the turbine inlet and the resulting deposition on the vanes was determined by using the critical velocity model in a range of particle diameters from 1 to 25 *** show that the particles are more likely to move outwards to the boundary walls of the passage by the action of the swirling ***,this could be relieved by increasing the particle *** imbalance problem of the deposition is found between the adjacent vanes,which could introduce additional inlet non-uniformities towards the downstream rotor and thus accelerate performance degradation of the turbine ***,the negative swirl case has higher overall capture efficiency within the entire turbine than the positive swirl case for larger particles,and when the inlet swirl is shifted to the mid-passage of the turbine,more deposits could be produced in comparison with the case in which the swirl aims at the vane leading edge.

关键词： Combustor-turbine interaction Gas turbine Inlet swirl Numerical simulation Particle deposition

Chiroluminophores based on non-conjugated benzenes

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Science China Chemistry 2023年第7期66卷 2130-2140页

作者： Yiping Liu Aiyou hao Pengyao xing School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

Point-chiral groups as pendants conjugated to the aromatic luminophore generate weak chiroptical signals without self-assembly,showing the dependence on the flexibility of tethers,which hinders the development of point-chiral molecular materials with chiroptical properties such as the circularly polarized luminescence(CPL).Herein we introduce the molecular chiroptical materials based on the point chirality on a single benzene luminophore *** were stepwise conjugated to single benzene luminophores to boost the steric hindrance and tension,whereby the chirality transfer efficiency from point-chiral substituents to luminophores was *** intramolecular CH-πinteractions anchor the whole asymmetric geometry with ultra-high rotation energy barriers and excellent *** g-factors of circular dichroism and CPL spectra up to 10^(-3)order of magnitude were realized in solutions,which are comparable to the inherent-chiral luminophores such as helicene and binaphthyl *** acridine-appended single benzene system shows the emergence of thermally activated delayed fluorescence(TADF),which extends the potentials of the single benzene chiral system in the TADF-based chiroptical devices.

关键词： point chirality single-benzene based luminophores chirality transfer circularly polarized luminescence thermally activated delayed fluorescence