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Novel Chiral PNNP-Ru Complexes:Synthesis and Application in Asymmetric Transfer Hydrogenation of Ketones

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Chemical Research in Chinese Universities 2011年第2期27卷 170-173页

作者： CHENG Zhi-box YU Shen-luan LI Yan-yun DONG Zhen-rong SUN Guo-song HUANG Ke-lin gao jing-xing State Key Laboratory of Physical Chemistry of Solid Surfaces National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China Guangxi Research Institute of Chemical Industry Nanning 530001 P. R. China

The efficient catalytic systems generated in situ from RuCl2（PPh3）3 and chiral ligands N,N-bis[2-（di-o-tolylphosphino）-benzyl]cyclohexane-1,2-diamine（2） were employed for asymmetric transfer hydrogenation of aromatic ketones, giving the corresponding optically active alcohols with high activities（up to 99% conversion） and excellent enantioselectivities（up to 96% e.e.） under mild conditions. The chiral ruthenium（Ⅱ） complex （R,R）-3 has been prepared and characterized by NMR and X-ray crystallography.

关键词： Chiral PNNP ligand Ru complex Asymmetric transfer hydrogenation Aromatic ketone

PTEN coding product:a new marker for tumorigenesis and progession of endometrial carcinoma

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现代妇产科进展 2008年第10期17卷 797-800页

作者： gao Qinglei Li jing xing Hui Lu Yunping Zhou Jianfeng Ma Ding Department of Obstetrics ＆ Gynecology Tongji Hospitol Tongji Medical College Huazhong University of Scienceand TechnologyWuhan 430030

Objective:To investigate the expression of PTEN in carcinogenesis and development of endometrial ***:The expression of PTEN was detected by reverse transcription-polymerase chain reaction(RT-PCR)methods from 24 cases with endometrial carcinoma,10 cases with endometrial atypical hyperplasia,10 cases with endometrial hyperplasia and 10 cases with normal endometrium and by SP immunohistochemical methods from 73 cases with endometrial carcinoma,25 cases with endometrial atypical hyperplasia,71 cases with endometrial hyperplasia and 31 cases with normal ***:PTEN expression of both RNA and protein in patients with endometrial carcinoma and endometrial atypical hyperplasia was significantly lower than that of patients with endometrial hyperplasia and normal *** relative value was 0.35±0.13,0.46±0.11,2.32±0.32,2.45±0.51,*** of PTEN expression rates were 66.67%(38/57),76.00%(19/25),5.63%(4/71),0(0/31),*** results were also compared with clinical *** of PTEN expression in patients with endometrial carcinoma was significantly related to histological classification(P0.05).Conclusion:Loss of PTEN expression is an early event in endometrial *** of PTEN protein may be a diagnostic biomarker for endometrial precancers and adenocarcinoma.

关键词： PTEN基因编码肿瘤标志物子宫内膜癌

Enantioselective Transfer Hydrogenation of Aromatic Ketones Catalyzed by New Diaminodiphosphine Ru(Ⅱ) Complexes

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Chemical Research in Chinese Universities 1998年第3期14卷 118-121页

作者： XU Pian-pian gao jing-xing YI Xiao-dong HUANG You-qing ZHANG Hui WAN Hui-lin TSAI Khi-rui Ikariya Takao Department of Chemistry State Key Laboratory for Physical Chemistry of Solid Surface and Institute of Physical ChemistryXiamen Univer sityXiamen361005 Department of Chemical Engineering􂀠 Faculty of EngineeringTokyo Institute of Technology2-12-1O-okayamaMeguro-kuToyotoJapan

Ｃｈｉｒａｌｂｉｐｈｏｓｐｈｉｎｅｌｉｇａｎｄｓｐｒｏｖｉｄｅａｕｓｅｆｕｌｔｏｏｌｆｏｒｐｒｅｐａｒｉｎｇｏｐｔｉｃａｌｙａｃｔｉｖｅｓｅｃｏｎｄａｒｙａｌｃｏｈｏｌｓａｎｄｈａｖｅｂｅｅｎｔｈｅｉｎｔｅｒｅｓｔｉ... 详细信息

Ｃｈｉｒａｌｂｉｐｈｏｓｐｈｉｎｅｌｉｇａｎｄｓｐｒｏｖｉｄｅａｕｓｅｆｕｌｔｏｏｌｆｏｒｐｒｅｐａｒｉｎｇｏｐｔｉｃａｌｙａｃｔｉｖｅｓｅｃｏｎｄａｒｙａｌｃｏｈｏｌｓａｎｄｈａｖｅｂｅｅｎｔｈｅｉｎｔｅｒｅｓｔｉｎｇｓｕｂｊｅｃｔｏｆｎｕｍｅｒｏ...

关键词： Chiral ligand Ruthenium complex Asymmetric transfer hydrogenation

Mass-spring model for elastic wave propagation in multilayered van der Waals metamaterials

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Applied Mathematics and Mechanics(English Edition) 2024年第7期45卷 1107-1118页

作者： Yabin jing Lifeng WANG Yuqiang gao State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing210016China

Multilayered van der Waals(vdW)materials have attracted increasing interest because of the manipulability of their superior optical,electrical,thermal,and mechanical properties.A mass-spring model(MSM)for elastic wave propagation in multilayered vdW metamaterials is reported in this *** dynamics(MD)simulations are adopted to simulate the propagation of elastic waves in multilayered vdW *** results show that the graphene/MoS_(2)metamaterials have an elastic wave bandgap in the terahertz *** MSM for the multilayered vdW metamaterials is proposed,and the numerical simulation results show that this model can well describe the dispersion and transmission characteristics of the multilayered vdW *** MSM can predict elastic wave transmission characteristics in multilayered vdW metamaterials stacked with different two-dimensional(2D)*** results presented in this paper offer theoretical help for the vibration reduction of multilayered vdW semiconductors.

关键词： multilayered van der Waals(vd W)metamaterial molecular dynamics(MD) mass-spring model(MSM) dispersion relation transmission characteristic

Advances in bio-inspired electrocatalysts for clean energy future

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Nano Research 2024年第2期17卷 515-533页

作者： jing-Wen Duan Mu Min-Rui gao Division of Nanomaterials&Chemistry Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of ChemistryUniversity of Science and Technology of ChinaHefei 230026China

Electrocatalysis can enable efficient energy storage and conversion and thus is an effective way to achieve carbon *** unique structure and function of organisms can offer many ideas for the design of electrocatalysts,which has become one of the most promising research ***,the understanding of the mechanism of bio-inspired electrocatalysis has become clearer,which has promoted the design of bio-inspired catalysts and catalytic *** bio-inspired catalysts(enzyme-like catalysts,layered porous catalysts,superhydrophobic/superhydrophilic surfaces,and so on)have been developed to enable efficient electrocatalytic ***,we discuss the key advances in the field of bio-inspired electrocatalysts progressed in recent ***,the role of bio-inspiration in increasing the intrinsic activity and number of active sites of catalysts is ***,the structure and mechanism of layered porous catalytic systems that mimic biological transport systems are comprehensively ***,the design of three-phase interfaces from micro-nanoscale to atomic scale is highlighted,including the wettability of the electrode surface and the transport system near the *** conclude the review by identifying challenges in bio-inspired electrocatalysts and providing insights into future prospects for the exciting research field.

关键词： bio-inspired electrocatalysts active sites layered porous structure three-phase interface

Demixing microwave signals using system-on-chip photonic processor

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Light(Science & Applications) 2024年第3期13卷 399-401页

作者： Sheng gao Chu Wu xing Lin Department of Electronic Engineering Tsinghua University100084 BeijingChina Beijing National Research Center for Information Science and Technology Tsinghua University100084 BeijingChina

The integrated photonic processor,co-packaged with electronic peripherals,is proposed for blind source separation of microwave signals,which separates signal-of-interest from dynamic interference with real-time adapta... 详细信息

关键词： processor microwave mixing

Recorded recurrent deep reinforcement learning guidance laws for intercepting endoatmospheric maneuvering missiles

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Defence Technology（防务技术） 2024年第1期31卷 457-470页

作者： Xiaoqi Qiu Peng Lai Changsheng gao Wuxing jing Department of Aerospace Engineering Harbin Institute of TechnologyHarbin150001China Shanghai Electro-Mechanical Engineering Institute Shanghai Academy of Spaceflight TechnologyShanghai201100China

This work proposes a recorded recurrent twin delayed deep deterministic(RRTD3)policy gradient algorithm to solve the challenge of constructing guidance laws for intercepting endoatmospheric maneuvering missiles with uncertainties and observation *** attack-defense engagement scenario is modeled as a partially observable Markov decision process(POMDP).Given the benefits of recurrent neural networks(RNNs)in processing sequence information,an RNN layer is incorporated into the agent’s policy network to alleviate the bottleneck of traditional deep reinforcement learning methods while dealing with *** measurements from the interceptor’s seeker during each guidance cycle are combined into one sequence as the input to the policy network since the detection frequency of an interceptor is usually higher than its guidance *** training,the hidden states of the RNN layer in the policy network are recorded to overcome the partially observable problem that this RNN layer causes inside the *** training curves show that the proposed RRTD3 successfully enhances data efficiency,training speed,and training *** test results confirm the advantages of the RRTD3-based guidance laws over some conventional guidance laws.

关键词： Endoatmospheric interception Missile guidance Reinforcement learning Markov decision process Recurrent neural networks

Exhaust hood performance and its improvement technologies in industrial buildings:A literatu rereview

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Building Simulation 2024年第1期17卷 23-40页

作者： jing Zhang Jian Wang Jun gao Weimin Zhang Architectural Engineering Institute Jinhua PolytechnicJinhua 321017China Institute of HVAC Engineering Schoolof Mechanical EngineeringTongji UniversityShanghai 200092China Tongji Architectural Design(Group)Co .LtdShanghai 200092China

The pollutant control performance of exhaust hoods plays a crucial role in the indoor air quality and energy consumption of ventilation systems in industrial *** better understand the impact of local ventilation on the industrial indoor environment,this paper presents a literature review of exhaust hood performance and its improvement *** create an index for evaluating the performance of exhaust hoods,the capture velocity,capture efficiency,flow ratio of pollutant emissions and exhaust airflow and energy consumption are first introduced.A number of factors affecting exhaust hood performance are assessed such as hood type,hood opening size,exhaust rate,installation distance,pollution source emission and environmental *** to structural improvement methods,the use of active airflow is a more effective way to improve the exhaust hood *** most commonly used methods for determining the exhaust rate are the controlled speed method and the flow ratio *** use of an exhaust hood with an appropriate exhaust rate and jet parameters(for an active air-assisted hood)can effectively improve the pollutant control performance and reduce the energy consumption that would be wasted on the redundant exhaust *** more information focused on exhaust hood performance,this work suggests more effective strategies for improving indoor air quality and reducing energy consumption in industrial buildings.

关键词： industrial ventilation exhaust hood capture efficiency exhaust rate performance improvement

Sustainability-oriented prioritization of nuclear fuel cycle transitions in China:a holistic MCDM framework under uncertainties

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Nuclear Science and Techniques 2024年第9期35卷 196-212页

作者： Lei Wang Ru-xing gao Hyo On Nam Hong Jang Won Il Ko Chun-Dong Zhang Guo-An Ye Wen-Heng jing State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China Korea Atomic Energy Research Institute 989-111 Daedeok-daeroYuseong-GuDaejeon 34057Republic of Korea China Institute of Atomic Energy P.O.Box 275-1Beijing 102413China

A sustainability-oriented assessment of the nuclear energy system can provide informative and convincing decision-making support for nuclear development strategies in *** our previous study,four authentic nuclear fuel cycle(NFC)transi-tion scenarios were proposed,featuring different development stages and exhibiting distinct environmental,economic,and technical ***,because of the multiple and often conflicting criteria embedded therein,determining the top-priority NFC alternative for a sustainability orientation remains *** address this issue,this study proposed a novel hybrid multi-criteria decision-making framework comprising fuzzy AHP,PROMETHEE GAIA,and ***,an improved fuzzy AHP weighting model was developed to determine criteria weights under uncertainty and investigate the influence of various weight aggregation and defuzzification ***,PROMETHEE GAIA was used to address conflicts among the criteria and prioritize alternatives on a visualized k-dimensional GAIA *** a result,the alternative for direct recycling PWR spent fuel in fast reactors is considered the most ***,a sensitivity analysis was conducted to examine the influence of criteria weight variation and validate the screening ***,using MOORA,some significant optimization ideas and valuable insights were provided to support decision-makers in shaping nuclear development strategies.

关键词： Nuclear energy systems Nuclear fuel cycle Fuzzy AHP PROMETHEE GAIA