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Large-scale toppling slope under water level fluctuation of reservoir:A case of Yunnan Province,China

Journal of Rock Mechanics and Geotechnical Engineering 2024年第8期16卷 3034-3046页

作者： Leilei jin Yufeng Wei Fei ye Wenxi Fu Jianfeng Liu Shuwu Li State Key Laboratory of Hydraulic and Mountain River Engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu610059China Northwest Engineering Corporation Limited Xi’an710065China

Landslides induced by reservoir inundation are common in Southwest China,negatively influencing hydropower *** hydropower station dam was constructed in the upper reaches of the Lancang River,accordingly causing the water level at the Lajinshengu slope to increase by 30 m.A tension crack with a visible depth of 8 m was observed in the upper sector of the Lajinshengu slope after reservoir impoundment for 170 *** the following days,numerous cracks appeared on the surface of the slope,and the maximum displacement of the slope reached 3.22 ***,a large-scale active deformation body within the Lajinshengu slope formed with an area of 2.62×10^(5)m^(2)and a volume of 1.65×10^(7)m^(3).Detailed field investigations,on-site monitoring,and centrifugal model tests were carried out to analyze the surface features,deformation characteristics,and failure mechanism of the Lajinshengu *** results show that the slope is an ancient landslide,divided into two parts(*** A and zone B)by the *** B is a traction landslide caused by the displacement of zone *** longterm inundation weakens the soft rock at the slope foot,intensifying the toppling of bedrock and consequently triggering the sliding of the overburden in zone *** failure mode of the Lajinshengu slope is a typical case of toppling-sliding failure,and the underlying rock toppling drives the overlying *** addition,early identification methods for toppling deformation covered by overburdened soil were proposed based on monitoring data and deformation signs.

关键词： Lajinshengu slope Reservoir impoundment Early identification Failure mechanism Toppling-sliding slope failure mode

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Laparoscopic approach of Castleman＇s disease in the pararenal retroperitoneum： report of two cases

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Chinese Medical Journal 2010年第13期123卷 1809-1811页

作者： XIA Dan WANG Shuo LI Qi-meng CHEN Shan-wen ZHONG Jie MENG Hong-zhou jin bai-ye CAI Song-Hang Department of Urology First Affiliated Hospital Zhejiang University School of Medicine Hangzhou Zhejiang 310031 China Department of Urology Third Affiliated Hospital Wenzhou Medical College Rui'an Zhejiang 325200 China

Castleman＇s disease （CD） is a benign lymphoid neoplasm characterized by massive proliferation of the lymphoid tissue due to an uncertain cause. Two clinical types （localized, multicentric） have been described with three histological variants （hyaline-vascular, plasma cell and mixed type）. The expected localization is mediastinum and rarely pararenal retroperitoneum. We reported two cases of CD in the pararenal retroperitoneum, one was complicated with autoimmune hemolytic anemia.

关键词： Castleman's disease pararenal retroperitoneum laparoscopic approach

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Taiji-TianQin-LISA network:Precisely measuring the Hubble constant using both bright and dark sirens

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 59-77页

作者： Shang-Jie jin ye-Zhu Zhang Ji-Yu Song jing-Fei Zhang Xin Zhang Key Laboratory of Cosmology and Astrophysics(Liaoning)&College of Sciences Northeastern UniversityShenyang 110819China Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education) Northeastern UniversityShenyang 110819China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern UniversityShenyang 110819China

In the coming decades,the space-based gravitational-wave(GW)detectors such as Taiji,TianQin,and LISA are expected to form a network capable of detecting millihertz GWs emitted by the mergers of massive black hole binaries(MBHBs).In this work,we investigate the potential of GW standard sirens from the Taiji-TianQin-LISA network in constraining cosmological *** the optimistic scenario in which electromagnetic(EM)counterparts can be detected,we predict the number of detectable bright sirens based on three different MBHB population models,i.e.,popⅢ,Q3d,and *** results show that the TaijiTianQin-LISA network alone could achieve a constraint precision of 0.9%for the Hubble constant,meeting the standard of precision ***,the Taiji-TianQin-LISA network could effectively break the cosmological parameter degeneracies generated by the CMB data,particularly in the dynamical dark energy *** combined with the CMB data,the joint CMB+Taiji-TianQin-LISA data offerσ(w)=0.036 in the wCDM model,which is close to the latest constraint result obtained from the CMB+SN *** also consider a conservative scenario in which EM counterparts are not *** to the precise sky localizations of MBHBs by the Taiji-TianQin-LISA network,the constraint precision of the Hubble constant is expected to reach 1.2%.In conclusion,the GW standard sirens from the Taiji-TianQin-LISA network will play a critical role in helping solve the Hubble tension and shedding light on the nature of dark energy.

关键词： space-based gravitational wave detection standard sirens the Taiji-TianQin-LISA network the Hubble constant dark energy

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C_(Ar)-Br bond cleavage via cooperative EnT/NHC catalysis: mild access to indolines

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Science China Chemistry 2024年第3期67卷 922-927页

作者： Yi-Xiong Dong Cao-Bo Li Ming-Lei jin Zhong-Hua Gao Song ye Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The cooperative visible-light mediated and NHC-catalyzed dearomative arylation-acylation of N-(2-bromobenzoyl)indoles with aldehydes was developed, affording the corresponding highly functionalized polycyclic indolines in moderate to good yields with exclusive diastereoselectivities. Mechanism investigations support the activation of CAr-Br bond via visible-light mediated energy transfer(EnT) and the following single-electron-transfer(SET) with Breslow intermediate under NHC catalysis to give key aryl radical and ketyl radical. This protocol demonstrates the cleavage of CAr-Br bond under mild cooperative EnT/NHC catalysis.

关键词： energy transfer N-heterocyclic carbenes photocatalysis aryl radicals indolines

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Automatic velocity picking based on optimal key points tracking algorithm

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Petroleum Science 2024年第2期21卷 903-917页

作者： Yong-Hao Wang Wen-Kai Lu Song-bai jin Yang Li Yu-Xuan Li Xiao-Feng Gu The Institute for Artificial Intelligence(THUAI) Tsinghua UniversityBeijing100084China State Key Laboratory of Intelligent Technology and Systems Tsinghua UniversityBeijing100084China Beijing National Research Center for Information Science and Technology(BNRist) Beijing100084China The Department of Automation Tsinghua UniversityBeijing100084China

Picking velocities from semblances manually is laborious and necessitates experience. Although various methods for automatic velocity picking have been developed, there remains a challenge in efficiently incorporating information from nearby gathers to ensure picked velocity aligns with seismic horizons while also improving picking accuracy. The conventional method of velocity picking from a semblance volume is computationally demanding, highlighting a need for a more efficient strategy. In this study, we introduce a novel method for automatic velocity picking based on multi-object tracking. This dynamic tracking process across different semblance panels can integrate information from nearby gathers effectively while maintaining computational efficiency. First, we employ accelerated density clustering on the velocity spectrum to discern cluster centers without the requirement for prior knowledge regarding the number of clusters. These cluster centers embody the maximum likelihood velocities of the main subsurface structures. Second, our proposed method tracks key points within the semblance volume. Kalman filter is adopted to adjust the tracking process, followed by interpolation on these tracked points to construct the final velocity model. Our synthetic data example demonstrates that our proposed algorithm can effectively rectify the picking errors of the clustering algorithm. We further compare the performances of the clustering method(CM), the proposed tracking method(TM), and the variational method(VM) on a field dataset from the Gulf of Mexico. The results attest that our method offers superior accuracy than CM, achieves comparable accuracy with VM, and benefits from a reduced computational cost.

关键词： Velocity picking Multi-object tracking Density clustering Kalman filter

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A method for determining the complex refractive index dispersion of absorbing materials without thickness information

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Optoelectronics Letters 2024年第11期20卷 676-680页

作者： DENG Zhichao MEI Jianchun WANG jin ye Qing TIAN Jianguo Key Laboratory of Weak-Light Nonlinear Photonics Ministry of Education School of Physics and TEDA Applied Physics Nankai University

The complex refractive index dispersion(CRID) of absorbing materials is very important in many fields, especially in printing industry and medical research. However, due to their strong absorbing, CRID determination i... 详细信息

关键词： A

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The Relationships between Executive Function and Problem Behavior of Preschool Children:Contextual Specificity and Gender Differences

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Frontiers of Education in China 2024年第2期19卷 119-137页

作者： bai Rong YAN Rong WANG Qian LI ye XING Shufen Beijing Key Laboratory of Learning and Cognition School of PsychologyCapital Normal UniversityBeijing 100048China Institute of Leadership and Education Advanced Development Xi’an Jiaotong-Liverpool UniversitySuzhou 215123China

This study utilized a longitudinal design to examine the relationships between the specific components of executive function(EF)and the internalizing and externalizing behavior across different genders and contexts in Chinese cultural ***,cognitive flexibility,and working memory of EF based on 101 preschool children’s(48 boys and 53 girls)(M_(T1)=4.25,SD=0.76)performances were measured when completing tasks in NIH *** months later,boys’and girls’internalizing and externalizing behavior in home-and school-settings was assessed through mother’s feedback on the Strengths and Difficulties Questionnaire and teachers’reports of the Child Behavior Rating *** results show that boys’inhibition,cognitive flexibility,and working memory negatively predict their externalizing behavior in the home context,while their cognitive flexibility negatively predicts externalizing behavior in the school ***,boys’inhibition positively predicts their internalizing behavior only in the school *** girls,their cognitive flexibility positively predicts externalizing behavior only in the school *** significant relationship is found among the girls between EF and problem behavior in the home *** findings suggest that gender differences and a shift in contexts could alternate the relationship between EF and children’s problem *** study sheds light on targeted preventions and interventions based on contexts and gender.

关键词： executive function(EF) problem behavior contextual specificity gender differences preschool children

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Manganese vanadium oxide composite as a cathode for high-performance aqueous zinc-ion batteries

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Chinese Chemical Letters 2024年第9期35卷 491-495页

作者： Jiayu bai Songjie Hu Lirong Feng Xinhui jin Dong Wang Kai Zhang Xiaohui Guo Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Shaanxi Key Laboratory for Carbon Neutral TechnologyThe College of Chemistry and Materials ScienceNorthwest UniversityXi’an 710069China Sustainable Materials and Chemistry Dept.Wood Technology and Wood-based CompositesUniversity of GoettingenWilhelmsplatz 1(Aula)37073 GötingenGermany

The development of clean renewable energy and energy storage devices is of great significance under the present energy crisis and environmental pollution *** zinc-ion battery(ZIB)has become one of the most promising energy storage devices due to its high capacity,safety and low ***,the application of ZIB cathode is usually limited by low capacity and poor ***,we propose a novel heterostructure MnO/MnV_(2)O_(4)composite material composed of MOF derivatives and spinel with dual active components as cathode for *** from substantial framework of MOF derivatives and the synergistic effect of heterostructures,MnO/MnV_(2)O_(4)exhibits excellent rate performance(342 m Ah/g at 0.1 A/g,261 mAh/g at 15 A/g)and cycling performance(198.9 mAh/g at 10 A/g after 2000 cycles)in3 mol/L Zn(CF_(3)SO_(3))*** work extends the range of developing high-performance cathodes for ZIBs under high current density and is expected to enlighten the optimization of commercial energy storage devices.

关键词： Metal organic framework Manganese oxides Heterostructure Cathode Zinc ion battery

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CRABP2 and FABP5 identified by 2D DIGE profiling are upregulated in human bladder cancer

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Chinese Medical Journal 2013年第19期126卷 3787-3789页

作者： jin bai-ye FU Guang-hou JIANG Xue PAN Hao ZHOU Dong-kai WEI Xu-yong ZHOU Lin Chung Lee ZHENG Shu-sen Department of Urology First Affiliated Hospital Zhejiang University College of Medicine Hangzhou Zhejiang 310003 China Department of Urology First Affiliated Hospital Zhejiang University College of Medicine Hangzhou Zhejiang 310003 China Department of Nephrology Hangzhou Traditional Chinese Medical Hospital Hangzhou Zhejiang 310003 China Department of Hepatobiliary and Pancreatic Surgery First Affiliated Hospital Zhejiang University College of Medicine Hangzhou Zhejiang 310003 China

Bladder cancer （BC） is the second most common malignancy of the human genitourinary tract,and is characterized by a high recurrence rate and expensive treatment） There is still no ideal biomarker for diagnosing or monitoring human *** the present study,we used proteomics analysis,including two-dimensional fluorescence difference gel electrophoresis （2D DIGE） and matrix-assisted laser desorption ionization time of flight/time of flight mass spectrometry （MALDI-TOF/TOF MS）,to identify new potential protein markers of BC.

关键词： CRABP2 FABP5 2D DIGE biomarker bladder cancer

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Progress in systematics and biogeography of Orchidaceae

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Plant Diversity 2024年第4期46卷 425-434页

作者： Yajun Wang Hanchen Wang Chao ye Zhiping Wang Chongbo Ma Dongliang Lin Xiaohua jin State Key Laboratory of Plant Diversity and Specialty Crops Institute of Botanythe Chinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences Beijing 100093China China National Botanical Garden Beijing 100093China

Orchidaceae are one of the largest families of angiosperms in terms of species *** the last decade,numerous studies have delved into reconstructing the phylogenetic framework of Orchidaceae,leveraging data from plastid,mitochondrial and nuclear *** studies have provided new insights into the systematics,diversification and biogeography of Orchidaceae,establishing a robust foundation for future ***,pronounced controversies persist regarding the precise placement of certain lineages within these phylogenetic *** address these discrepancies and deepen our understanding of the phylogenetic structure of Orchidaceae,we provide a comprehensive overview and analysis of phylogenetic studies focusing on contentious groups within Orchidaceae since 2015,delving into discussions on the underlying reasons for observed topological *** also provide a novel phylogenetic framework at the subtribal ***,we examine the tempo and mode underlying orchid species diversity from the perspective of historical biogeography,highlighting factors contributing to extensive ***,we delineate avenues for future research aimed at enhancing our understanding of Orchidaceae phylogeny and diversity.

关键词： Diversification Orchid phylogenetics Phylogenetic conflicts Biogeography Taxonomy

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