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| 1 | Two regimes of Atlantic multidecadal oscillation: cross-basin dependent or Atlantic-intrinsic显示文摘The Atlantic Multidedal Oscillation(AMO) is a prominent mode of sea surface temperature variability in the Atlantic and incurs significant global influence. Most coupled models failed to reproduce the observed 50–80-year AMO, but were overwhelmed by a 10–30-year AMO. Here we show that the 50–80-year AMO and 10–30-year AMO represent two different AMO regimes. The key differences are:(1) the 50–80-year AMO involves transport of warm and saline Atlantic water into the Greenland-Iceland-Norwegian(GIN)Seas prior to reaching its maximum positive phase, while such a transport is weak for the 10–30-year AMO;(2) the zonality of atmospheric variability associated with the 50–80 year AMO favors the transport of warm and saline water into the GIN Seas;(3) the disappearance of Pacific variability weakens the zonality of atmospheric variability and the transport of warm and saline water into the GIN Seas, leading to the weakening of the 50–80-year AMO. In contrast, the 10–30-year AMO does not show dependence on the variability in Pacific and in the GIN Seas and may be an Atlantic-intrinsic mode. Our results suggest that differentiating these AMO regimes and a better understanding of the cross-basin connections are essential to reconcile the current debate on the nature of AMO and hence to its reliable prediction, which is still lacking in most of coupled models. | Pengfei Lin Zipeng Yu Jianhua Lü Mengrong Ding Aixue Hu Hailong Liu | 2019 | Science Bulletin2019,64,3: | 6 |
| 2 | A Mixed-integer SDP Solution to Distributionally Robust Unit Commitment with Second Order Moment Constraints显示文摘A power system unit commitment(UC)problem considering uncertainties of renewable energy sources is investigated in this paper,through a distributionally robust optimization approach.We assume that the first and second order moments of stochastic parameters can be inferred from historical data,and then employed to model the set of probability distributions.The resulting problem is a two-stage distributionally robust unit commitment with second order moment constraints,and it can be recast as a mixed-integer semidefinite programming(MI-SDP)with finite constraints.The solution algorithm of the problem comprises solving a series of relaxed MI-SDPs and a subroutine of feasibility checking and vertex generation.Based on the verification of strong duality of the semidefinite programming(SDP)problems,we propose a cutting plane algorithm for solving the MI-SDPs;we also introduce an SDP relaxation for the feasibility checking problem,which is an intractable biconvex optimization.Experimental results on the IEEE 6-bus system are presented,showing that without any tuning of parameters,the real-time operation cost of distributionally robust UC method outperforms those of deterministic UC and two-stage robust UC methods in general,and our method also enjoys higher reliability of dispatch operation. | Xiaodong Zheng Haoyong Chen Yan Xu Zhengmao Li Zhenjia Lin Zipeng Liang | 2020 | CSEE Journal of Power and Energy Systems2020,6,2: | 1 |
| 3 | Eddy-resolving Simulation of CAS-LICOM3 for Phase 2 of the Ocean Model Intercomparison Project显示文摘A 61-year(1958–2018)global eddy-resolving dataset for phase 2 of the Ocean Model Intercomparison Project has been produced by the version 3 of Chinese Academy of Science,the State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics/Institute of Atmospheric Physics(LASG/IAP)Climate system Ocean Model(CAS-LICOM3).The monthly and a part of the surface daily data in this study can be accessed on the Earth System Grid Federation(ESGF)node.Besides the details of the model and experiments,the evolutions and spatial patterns of large-scale and mesoscale features are also presented.The mesoscale features are reproduced well in the high-resolution simulation,as the mesoscale activities can contribute up to 50%of the total SST variability in eddy-rich regions.Also,the large-scale circulations are remarkably improved compared with the low-resolution simulation,such as the climatological annual mean SST(the RMSE is reduced from 0.59°C to 0.47°C,globally)and the evolution of Atlantic Meridional Overturning Circulation.The preliminary evaluation also indicates that there are systematic biases in the salinity,the separation location of the western boundary currents,and the magnitude of eddy kinetic energy.All these biases are worthy of further investigation. | Yiwen LI Hailong LIU Mengrong DING Pengfei LIN Zipeng YU Yongqiang YU Yao MENG Yunlong LI Xiaodong JIAN Jinrong JIANG Kangjun CHEN Qian YANG Yaqi WANG Bowen ZHAO Jilin WEI Jinfeng MA Weipeng ZHENG and Pengfei WANG | 2020 | Advances in Atmospheric Sciences2020,37,10: | 1 |
| 4 | FGOALS-g3 Model Datasets for CMIP6 Flux-Anomaly-Forced Model Intercomparison Project显示文摘The Flux-Anomaly-Forced Model Intercomparison Project(FAFMIP)is an endorsed Model Intercomparison Project in phase 6 of the Coupled Model Intercomparison Project(CMIP6).The goal of FAFMIP is to investigate the spread in the atmosphere–ocean general circulation model projections of ocean climate change forced by increased CO2,including the uncertainties in the simulations of ocean heat uptake,global mean sea level rise due to ocean thermal expansion and dynamic sea level change due to ocean circulation and density changes.The FAFMIP experiments have already been conducted with the Flexible Global Ocean–Atmosphere–Land System Model,gridpoint version 3.0(FGOALS-g3).The model datasets have been submitted to the Earth System Grid Federation(ESGF)node.Here,the details of the experiments,the output variables and some baseline results are presented.Compared with the preliminary results of other models,the evolutions of global mean variables can be reproduced well by FGOALS-g3.The simulations of spatial patterns are also consistent with those of other models in most regions except the North Atlantic and the Southern Ocean,indicating large uncertainties in the regional sea level projections of these two regions. | Yaqi WANG Zipeng YU Pengfei LIN Hailong LIU Jiangbo JIN Lijuan LI Yanli TANG Li DONG Kangjun CHEN Yiwen LI Qian YANG Mengrong DING Yao MENG Bowen ZHAO Jilin WEI Jinfeng MA and Zhikuo SUN | 2020 | Advances in Atmospheric Sciences2020,37,10: | 1 |
| 5 | The Brassicaceae-specific secreted peptides,STMPs,function in plant growth and pathogen defense显示文摘Low molecular weight secreted peptides have recently been shown to affect multiple aspects of plant growth,development,and defense responses.Here,we performed stepwise BLAST filtering to identify unannotated peptides from the Arabidopsis thaliana protein database and uncovered a novel secreted peptide family,secreted transmembrane peptides(STMPs).These low molecular weight peptides,which consist of an N-terminal signal peptide and a transmembrane domain,were primarily localized to extracellular compartments but were also detected in the endomembrane system of the secretory pathway,including the endoplasmic reticulum and Golgi.Comprehensive bioinformatics analysis identified 10 STMP family members that are specific to the Brassicaceae family.Brassicaceae plants showed dramatically inhibited root growth uponexposure to chemically synthesized STMP1 and STMP2.Arabidopsis overexpressing STMP1,2,4,6,or 10 exhibited severely arrested growth,suggesting that STMPs are involved in regulating plant growth and development.In addition,in vitro bioassays demonstrated that STMP1,STMP2,and STMP10 have antibacterial effects against Pseudomonas syringae pv.tomato DC3000,Ralstonia solanacearum,Bacillus subtilis,and Agrobacterium tumefaciens,demonstrating that STMPs are antimicrobial peptides.These findings suggest that STMP family members play important roles in various developmental events and pathogen defense responses in Brassicaceae plants. | Zipeng Yu Yang Xu Lifei Zhu Lei Zhang Lin Liu Di Zhang Dandan Li Changai Wu Jinguang Huang Guodong Yang Kang Yan Shizhong Zhang Chengchao Zheng | 2020 | Journal of Integrative Plant Biology2020,62,4: | 1 |
| 6 | Structure, function, and mechanism of the TNFAIP8 (TIPE) family of proteins in cancer and inflammation显示文摘The multiple roles of the tumor necrosis factor(TNF)-α-inducible protein 8(TNFAIP8),also named TIPE family of proteins have been shown in tumor and inflammation progression and regulation of cellular autophagy and apoptosis.In this review,we found that the TIPE family showed highly homologous sequences and conserved functional domains,such as the death effector domain(DED)-like domain but displayed different roles and mechanisms in different biological activities.For example,while TIPE is primarily associated with tumor progression and antitumor drug resistance,TIPE1 suppresses tumor progression in most instances.TIPE2 has multiple roles in tumor progression regulation,and antitumor drug resistance.Moreover,TIPE2 was also involved in inflammatory response regulation,tumor typing,and staging.A few studies reported that TIPE3 was engaged in tumor development by activating the phosphatidylinositol-3-kinase(PI3K)/protein kinase B(AKT)signaling pathway.The structure,function,and mechanism of the TIPE family in cancer and inflammation have been summarized in this review.This might serve as a reference for further research on the TIPE family and shed new light on the crosstalk among antitumor responses,inflammation,and immunology. | ZIPENG LIN CHUXI TANG LE KANG GUANXI LAI SHIWEN LIU YIXIANG WU HUIQUN TIAN SONG LIU | 2023 | BIOCELL2023,47,10: | 0 |
| 7 | The Super-large Ensemble Experiments of CAS FGOALS-g3显示文摘A super-large ensemble simulation dataset with 110 members has been produced by the fully coupled model FGOALS-g3 developed by researchers at the Institute of Atmospheric Physics,Chinese Academy of Sciences.This is the first dataset of large ensemble simulations with a climate system model developed by a Chinese modeling center.The simulation has the largest realizations up to now worldwide in terms of single-model initial-condition large ensembles.Each member includes a historical experiment(1850-2014)and an experiment(2015-99)under the very high greenhouse gas emissions Shared Socioeconomic Pathway scenario(SSP5-8.5).The dataset includes monthly and daily temperature,precipitation,and other variables,requiring storage of 275 TB.Additionally,the surface air temperature(SAT)and land precipitation simulated by the FGOALS-g3 super-large ensemble have been validated and projected.The ensemble can capture the response of SAT and land precipitation to external forcings well,and the internal variabilities can be quantified.The availability of more than 100 realizations will help researchers to study rare events and improve the understanding of the impact of internal variability on forced climate changes. | Pengfei LIN Bowen ZHAO Jilin WEI Hailong LIU Wenxia ZHANG Xiaolong CHEN Jie JIANG Mengrong DING Wenmin MAN Jinrong JIANG Xu ZHANG Yuewen DING Wenrong BAI Chenyang JIN Zipeng YU Yiwen LI Weipeng ZHENG Tianjun ZHOU | 2022 | Advances in Atmospheric Sciences2022,39,10: | 0 |
| 8 | A 77 GHz FMCW MIMO radar system based on 65nm CMOS cascadable 2T3R transceiver显示文摘In recent years,many studies on millimeter-wave (mm-wave)radar have been published [1-3].Compared with other traditional vision sensors like ultrasound,camera,and laser radar,mm-wave radar is more attractive owing to its low cost,high resolution,high integration,and strong robustness against bad weather.Frequency-modulated continuouswave (FMCW) radar is the most widely studied mm-wave radar because of its simple structure,easy realization,and powerful function.At present,the research of mm-wave radar mainly focuses on two frequency bands,24 GHz and77 GHz.Between them,the research on 24 GHz radar has started earlier and is more mature now. | Taikun MA Zipeng CHEN Jianxi WU Wei ZHENG Shufu WANG Nan QI Min LIN Baoyong CHI | 2021 | Science China(Information Sciences)2021,64,1: | 0 |
| 9 | Function identification of Md TIR1 in apple root growth benefited from the predicted Md PPI network显示文摘Protein–protein interaction(PPI)network analysis is an effective method to identify key proteins during plant development,especially in species for which basic molecular research is lacking,such as apple(Malus domestica).Here,an MdPPI network containing 30806 PPIs was inferred in apple and its quality and reliability were rigorously verified.Subsequently,a rootgrowth subnetwork was extracted to screen for critical proteins in root growth.Because hormone-related proteins occupied the largest proportion of critical proteins,a hormonerelated sub-subnetwork was further extracted from the root-growth subnetwork.Among these proteins,auxin-related M.domestica TRANSPORT INHIBITOR RESISTANT 1(MdTIR1)served as the central,high-degree node,implying that this protein exerts essential roles in root growth.Furthermore,transgenic apple roots overexpressing an MdTIR1 transgene displayed increased primary root elongation.Expression analysis showed that MdTIR1 significantly upregulated auxin-responsive genes in apple roots,indicating that it mediates root growth in an auxin-dependent manner.Further experimental validation revealed that MdTIR1 interacted with and accelerated the degradation of MdIAA28,MdIAA43,andMdIAA46.Thus,MdTIR1-mediated degradation of MdIAAs is critical in auxin signal transduction and root growth regulation in apple.Moreover,our network analysis and high-degree node screening provide a novel research technique for more generally characterizing molecular mechanisms. | Lin Liu Zipeng Yu Yang Xu Cheng Guo Lei Zhang Changai Wu Guodong Yang Jinguang Huang Kang Yan Huairui Shu Chengchao Zheng Shizhong Zhang | 2021 | Journal of Integrative Plant Biology2021,63,4: | 0 |
| 10 | Erratum to:LICOM Model Datasets for the CMIP6 OceanModel Intercomparison ProjectLICOM Model Datasets for the CMIP6 OceanModel Intercomparison Project显示文摘 | Pengfei LIN Zipeng YU Hailong LIU Yongqiang YU Yiwen LI Jinrong JIANG Wei XUE Kangjun CHEN Qian YANG Bowen ZHAO Jilin WEI Mengrong DING Zhikuo SUN Yaqi WANG Yao MENG Weipeng ZHENG Jinfeng MA | 2020 | Advances in Atmospheric Sciences2020,37,6: | 0 |
| 11 | Digestive tract reconstruction in pancreaticoduodenectomy in University Hospitals of China: a national questionnaire survey显示文摘Background Pancreaticoduodenectomy(PD)has been widely applied in general hospitals in China;however,there is still a lack of unified standards for each surgical technique and procedure.This survey is intended to investigate the current status of digestive tract reconstruction after PD in university hospitals in China.Method A cross-sectional survey was conducted among the members of the Young Elite Pancreatic Surgery Club of China by using the Questionnaire for Digestive Tract Reconstruction after Pancreaticoduodenectomy.The questionnaire was disseminated and collected by point-to-point communication via WeChat public platforms.Results A total of 73 valid questionnaires were returned from 65 university hospitals in 28 provincial divisions of China's Mainland.The respondents who performed PD surgery with an annual volume of over 100 cases accounted for 63%.Generally,laparoscopic PD was performed less often than open PD.Child and Whipple reconstructions accounted for 70%and 26%,respectively.The sequence of pancreatoenteric,biliary-enteric,and gastrointestinal reconstruction accounted for 84%of cases.In pancreatoenteric anastomosis,double-layer anastomosis is the most commonly employed type,accounting for approximately 67%,while single-layer anastomosis accounts for 30%.Of the double-layer anastomoses,duct-to-mucosa/dunking(94%/4%)PJ was performed with duct-mucosa using the Blumgart method(39%)and Cattel-Warren(29%),with continuous/interrupted sutures in the inner layer(69%/31%)and continuous/interrupted sutures in the outer layer(53%/23%).In single-layer anastomosis,continuous/interrupted sutures accounted for 41%/45%.In hepatojejunostomy,single-layer/double-layer suture accounted for 79%/4%,and continuous/interrupted suture accounted for 75%/9%.Forty-six percent of the responding units had not applied double-layer biliary-intestinal anastomosis in the last 3 years,75%of the responding surgeons chose the anastomosis method according to bile duct diameter,with absorbable/non-absorbable suture accounting for 86%/12%.PD/pylorus-preserving PD accounted for 79%/11%of GJ cases,the distance between GJ and HJ<30 cm,30-50 cm and>50 cm were 11%,75%,and 14%,respectively.Antecolic/retrocolic GJ accounted for 71%/23%of cases.Twenty-two percent of GJ cases employed Braun anastomosis,while 55%and 19%of GJ cases used linear cutting staplers/tube-type staplers,respectively;60%/14%were reinforced/not reinforced via manual suturing after stapler anastomosis.Manual anastomosis in GJ surgery employed absorbable/non-absorbable sutures(91%/9%).Significant differences in reconstruction techniques were detected between different volumes of PD procedures(<100/year and>100/year),regions with different economic development levels,and between north and south China.Conclusion Digestive tract reconstruction following PD exists heterogeneity in Chinese university hospitals.Corresponding prospective clinical studies are needed to determine the consensus on pancreatic surgery that meets the clinical reality in China. | Jishu Wei Qiang Xu Yuhua Zhang Jiabin Jin Xiaodong Tian Qiaofei Liu Zipeng Lu Zheng Wang Shanmiao Gou Song Gao Xianlin Han Yefei Rong Niandong Ji Ye Lin Guolin Li Shi Chen Feng Cao Hua Chen Wenming Wu Yupei Zhao the Young Elite Pancreatic Surgery Club of China | 2022 | Journal of Pancreatology2022,5,3: | 0 |
| 12 | Selecting small molecule DNA aptamers with significant conformational changes for constructing transcriptional switches and biosensors显示文摘Small molecule aptamers discovered by traditional selection methods usually lack conformational changes upon target binding.This limits the use of aptamers as molecular probes for small molecule detection and regulatory elements of genetic circuits.Here,we report a new method called capture and in vitro transcription-systematic evolution of ligands by exponential enrichment(CIVT-SELEX)to select DNA aptamers that can not only bind to small molecule ligands but also undergo significant conformational changes.Through this method,we select a structure-switching aptamer of uridine-5′-diphosphate(UDP).Taking advantage of its conformational changes,we first construct a UDP-responsive transcriptional switch by inserting the aptamer in a genetic circuit and demonstrate that it can respond to the addition of UDP and regulate the transcription of downstream genes.We also build a UDP aptamer-based biosensor that can be used for active glycosyltransferase screening.We believe this method can provide a universal platform for selecting small molecule aptamers with conformational changes and expand the use of aptamers in small molecule detection and genetic regulation. | Shaobin Guo Jingjing Lin Lujie Lin Wen Xu Yan Guo Zipeng Xu Chunhua Lu Xianai Shi Lanlan Chen Huanghao Yang | 2023 | Science China Chemistry2023,66,5: | 0 |