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Climate Sensitivity and Feedbacks of a New Coupled Model CAMS-CSM to Idealized CO_2 Forcing: A Comparison with CMIP5 Models

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Journal of Meteorological Research 2019年第1期33卷 31-45页

作者： Xiaolong CHEN Zhun GUO Tianjun zhou Jian LI xinyao RONG Yufei XIN Haoming CHEN Jingzhi SU State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Climate Change Research Center Institute of Atmospheric Physics Chinese Academy of Sciences University of the Chinese Academy of Sciences State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological Administration

Climate sensitivity and feedbacks are basic and important metrics to a climate system. They determine how large surface air temperature will increase under CO_2 forcing ultimately, which is essential for carbon reduction policies to achieve a specific warming target. In this study, these metrics are analyzed in a climate system model newly developed by the Chinese Academy of Meteorological Sciences(CAMS-CSM) and compared with multi-model results from the Coupled Model Comparison Project phase 5(CMIP5). Based on two idealized CO_2 forcing scenarios, i.e.,abruptly quadrupled CO_2 and CO_2 increasing 1% per year, the equilibrium climate sensitivity(ECS) and transient climate response(TCR) in CAMS-CSM are estimated to be about 2.27 and 1.88 K, respectively. The ECS is near the lower bound of CMIP5 models whereas the TCR is closer to the multi-model ensemble mean(MME) of CMIP5 due to compensation of a relatively low ocean heat uptake(OHU) efficiency. The low ECS is caused by an unusually negative climate feedback in CAMS-CSM, which is attributed to cloud shortwave feedback(λSWCL) over the tropical Indo-Pacific *** CMIP5 ensemble shows that more negative λSWCL is related to larger increase in low-level(925–700 hPa)cloud over the tropical Indo-Pacific under warming, which can explain about 90% of λSWCL in CAMS-CSM. Static stability of planetary boundary layer in the pre-industrial simulation is a critical factor controlling the low-cloud response and λSWCL across the CMIP5 models and CAMS-CSM. Evidently, weak stability in CAMS-CSM favors lowcloud formation under warming due to increased low-level convergence and relative humidity, with the help of enhanced evaporation from the warming tropical Pacific. Consequently, cloud liquid water increases, amplifying cloud albedo, and eventually contributing to the unusually negative λSWCL and low ECS in CAMS-CSM. Moreover, the OHU may influence climate feedbacks and then the ECS by modulating regional sea surface temperature r

关键词： climate sensitivity climate feedback cloud shortwave feedback the Chinese Academy of Meteorological Sciences climate system model(CAMS-CSM) Coupled Model Comparison Project phase 5(CMIP5)

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基于国家自然科学基金资助项目探讨干燥综合征研究现状

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中国医药导报 2022年第29期19卷 189-192,F0003页

作者：郭子琳唐晓颇周新尧徐浩东李延婷张依中国中医科学院广安门医院风湿病科北京100053 中国中医科学院中药研究所北京100700

目的基于国家自然科学基金(NSFC)对干燥综合征(SS)项目的资助情况,分析研究现状及改进方向。方法搜集NSFC官网及梅斯医学、LetPub、科研者之家数据库2000年1月至2021年12月所有标题、摘要或关键词中包含SS的资助项目,提取项目类型、... 详细信息

目的基于国家自然科学基金(NSFC)对干燥综合征(SS)项目的资助情况,分析研究现状及改进方向。方法搜集NSFC官网及梅斯医学、LetPub、科研者之家数据库2000年1月至2021年12月所有标题、摘要或关键词中包含SS的资助项目,提取项目类型、资助金额、依托单位、负责人、学科代码、关键词、成果转化等信息,运用描述统计方法进行分析。结果 2000-2021年NSFC资助的SS课题88项,包含面上项目、青年科学基金项目、地区科学基金项目和应急管理项目4种类型。2003年SS领域第一次获得NSFC资助,此后资助项目数和经费虽有波动,但总体呈上升趋势。2010-2019年SS资助项目数、金额及成果转化情况均不及类风湿关节炎、系统性红斑狼疮。立项≥3次的11所依托单位中,北京大学的立项数目及经费均居于领先地位。SS课题研究方向广泛,切入角度多样,关键词重复率较低,高频词条为细胞、细胞因子、通路。结论 NSFC资助对SS意义重大,但当前临床需求较大,中医优势未完全体现。后续应注重创新性和多学科交叉,尽快落实指南共识和大数据平台,引领SS临床科研发展。

关键词：国家自然科学基金干燥综合征研究现状统计分析

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Structural shifts in the intestinal microbiota of rats treated with cyclosporine A after orthotropic liver transplantation

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Frontiers of Medicine 2019年第4期13卷 451-460页

作者： Junjun Jia xinyao Tian Jianwen Jiang Zhigang Ren Haifeng Lu Ning He Haiyang Xie Lin zhou Shusen Zheng Department of Hepatobiliary and Pancreatic Surgery the First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China Key Laboratory of Combined Multi-Organ Transplantation Ministry of Public Health Collaborative Innovation Center for Diagnosis and Treatment ofInfectious Diseases the First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China State Key Laboratory for Diagnosis and Treatment of Infectious Diseases the First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China

Understanding the effect of immunosuppressive agents on intestinal microbiota is important to reduce the mortality and morbidity from orthotopic liver transplantation (OLT). We investigated the relationship between the commonly used immunosuppressive agent cyclosporine A (CSA) and the intestinal microbial variation in an OLT model. The rat samples were divided as follows:(1) N group (normal control);(2) I group (isograft LT, Brown Norway [BN] rat to BN);(3) R group (allograft LT, Lewis to BN rat);and (4) CSA group (R group treated with CSA). The intestinal microbiota was assayed by denaturing gradient gel electrophoresis profiles and by using real-time polymerase chain reaction. The liver histopathology and the alanine/aspartate aminotransferase ratio after LT were both ameliorated by CSA. In the CSA group, the numbers of rDNA gene copies of Clostridium cluster I, Clostridium cluster XIV, and Enterobacteriaceae decreased, whereas those of Faecalibacterium prausnitzii increased compared with the R group. Cluster analysis indicated that the samples from the N, I, and CSA groups were clustered, whereas the other clusters contained the samples from the R group. Hence, CSA ameliorates hepatic graft injury and partially restores gut microbiota following LT, and these may benefit hepatic graft rejection.

关键词： microbial community liver transplantation immunosuppressive agents cyclosporine A

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Influence of Intraseasonal Oscillation on the Asymmetric Decays of El Ni?o and La Ni?a

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Advances in Atmospheric Sciences 2019年第8期36卷 779-792页

作者： Xiaomeng SONG Renhe ZHANG xinyao RONG State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200433China

Warm and cold phases of El Nino–Southern Oscillation (ENSO) exhibit a significant asymmetry in their decay speed. To explore the physical mechanism responsible for this asymmetric decay speed, the asymmetric features of anomalous sea surface temperature (SST) and atmospheric circulation over the tropical Western Pacific (WP) in El Nino and La Nina mature-to-decay phases are analyzed. It is found that the interannual standard deviations of outgoing longwave radiation and 850 hPa zonal wind anomalies over the equatorial WP during El Nino (La Nina) mature-to-decay phases are much stronger (weaker) than the intraseasonal standard deviations. It seems that the weakened (enhanced) intraseasonal oscillation during El Nino (La Nina) tends to favor a stronger (weaker) interannual variation of the atmospheric wind, resulting in asymmetric equatorial WP zonal wind anomalies in El Nino and La Nina decay phases. Numerical experiments demonstrate that such asymmetric zonal wind stress anomalies during El Nino and La Nina decay phases can lead to an asymmetric decay speed of SST anomalies in the central-eastern equatorial Pacific through stimulating di erent equatorial Kelvin waves. The largest negative anomaly over the Nino3 region caused by the zonal wind stress anomalies during El Nino can be threefold greater than the positive Nino3 SSTA anomalies during La Nina, indicating that the stronger zonal wind stress anomalies over the equatorial WP play an important role in the faster decay speed during El Nino.

关键词： ENSO asymmetry ENSO decay intraseasonal oscillation OGCM

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变电站用铅蓄电池的温度估计与散热仿真

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蓄电池 2023年第6期60卷 283-291页

作者：沈梦甜康文夏建勋王春生董林周欣瑶曹原陈有根国网湖南省电力有限公司超高压变电公司湖南长沙410004 中南大学自动化学院湖南长沙410083

铅蓄电池作为变电站的主要备用电源,在正常运行中会释放出可观的热量。热量的累积会带来安全问题,且当前变电站铅蓄电池基本不附加散热系统。为了保障变电站铅蓄电池的安全使用,基于卡尔曼滤波算法和电热耦合模型估计电池温度,并设计了... 详细信息

铅蓄电池作为变电站的主要备用电源,在正常运行中会释放出可观的热量。热量的累积会带来安全问题,且当前变电站铅蓄电池基本不附加散热系统。为了保障变电站铅蓄电池的安全使用,基于卡尔曼滤波算法和电热耦合模型估计电池温度,并设计了一种基于PID控制风扇转速的电池风冷散热系统,通过ANSYS Fluent对散热系统效果进行仿真分析。首先,利用电热耦合模型获取电池单体温度。然后,在此基础上建立电池组散热模型,与未加风冷散热系统的电池组比较温度场分布情况。基于PID控制风扇转速的风冷散热系统与未散热的电池组相比,电池组平均温度下降了9.18℃,且电池组内最大温差下降到原来的30.3%。基于PID控制风扇转速的风冷散热系统可以显著改善电池运行期间的温度状况,降低了局部热失控的风险。

关键词：变电站备用电源铅酸蓄电池热管理风冷散热有限元分析比例、积分、微分控制卡尔曼滤波算法电热耦合模型热失控

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Decadal-to-interdecadal response and adjustment of the North Pacific to prescribed surface forcing in an oceanic general circulation model

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Acta Oceanologica Sinica 2006年第3期25卷 11-24页

作者： FANG Jiabei RONG xinyao YANG Xiuqun Institute of Severe Weather ＆ Climate Nanjing University Nanjing 210093 China

The simulation of a higher-resolution oceanic GCM forced with COADS surface conditions during 1945 ～ 1993 was analyzed with insight into how the North Pacific responds to the surface forcing. The decadal-to-interdecadal variabilities in the thermal and dynamical fields especially those associated with the 1976/1977 regime shift in the North Pacific were investigated. The model successfully captures the dominant SST anomaly mode on the decadal-to-interdecadal time scales as well as the major feature of SST anomalies in the 1976/1977 regime shift. The model also successfully reproduces two typical subduction events that link the tropical and extratropical oceanic temperature anomalies during the 1970s and the 1980s. Most importantly, the model simulates the dynamical adjustment of the upper ocean under the surface wind forcing. The typical surface circulation anomaly is characterized by a pattern that is simultaneously related to the wind stress anomalies. The typical anomalous pattern for the entire upper-ocean is characterized by coherent anomalies of two oceanic gyres, i.e. , the subtropical and subpolar gyres. The delayed response and slower adjustment of the gyres, especially of the subpolar gyre, give rise to a persistent SST anomaly in the central North Pacific. The upper-ocean heat budgets in three target regions, i.e. , the central North Pacific, the Californian coastal region and the KOE region, are examined. The cooling in the central North Pacific around 1976/1977 is attributed to the heat flux and mefidional advection anomalies. The associated warming in the Californian coastal region is only due to the heat flux anomaly. A cooling shift in the KOE region which lags that in the central basin by 3 to 4 a is largely due to the meridional advection anomaly and the heat flux acts only as a damping role.

关键词： North Pacific Ocean decadal-to-interdecadal variability subtropical gyre subpolar gyre

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Prediction-based Manufacturing Center Self-adaptive Demand Side Energy Optimization in Cyber Physical Systems

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Chinese Journal of Mechanical Engineering 2014年第3期27卷 488-495页

作者： SUN xinyao WANG Xue WU Jiangwei LIU Youda State Key Laboratory of Precision Measurement Technology and Instrument Tsinghua University

Cyber physical systems（CPS） recently emerge as a new technology which can provide promising approaches to demand side management（DSM）, an important capability in industrial power systems. Meanwhile, the manufacturing center is a typical industrial power subsystem with dozens of high energy consumption devices which have complex physical dynamics. DSM, integrated with CPS, is an effective methodology for solving energy optimization problems in manufacturing center. This paper presents a prediction-based manufacturing center self-adaptive energy optimization method for demand side management in cyber physical systems. To gain prior knowledge of DSM operating results, a sparse Bayesian learning based componential forecasting method is introduced to predict 24-hour electric load levels for specific industrial areas in China. From this data, a pricing strategy is designed based on short-term load forecasting results. To minimize total energy costs while guaranteeing manufacturing center service quality, an adaptive demand side energy optimization algorithm is presented. The proposed scheme is tested in a machining center energy optimization experiment. An AMI sensing system is then used to measure the demand side energy consumption of the manufacturing center. Based on the data collected from the sensing system, the load prediction-based energy optimization scheme is implemented. By employing both the PSO and the CPSO method, the problem of DSM in the manufac^ring center is solved. The results of the experiment show the self-adaptive CPSO energy optimization method enhances optimization by 5% compared with the traditional PSO optimization method.

关键词： cyber physical systems manufacturing center self-adaptive demand side management particle swarm optimization

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Static mechanical properties of hybrid RTM-made composite Ⅰ-and Ⅱ-beams under three-point flexure

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Chinese Journal of Aeronautics 2015年第3期28卷 903-913页

作者： Fu Yu Xiong Junjiang Luo Chuyang Yun xinyao School of Transportation Science and Engineering Beihang University

Abstract This paper deals with three-point flexure tests on hybrid I- and II-beams, made out of multi-layer carbon fiber/epoxy resin （including twill woven fabric CF3031/5284 and unidirectional cord fabric U3160/5284） reinforced composites, processed using the RTM （resin transfer molding） technique. Static bending properties were determined and failure initiation mechanism was deduced from experimental observations. Failure mode of the tested hybrid RTM-made I-beams can be reckoned to be characteristic of the delamination from the cutout edge within the web and the debonding propagation along the interface between the inverted triangular resin-rich zone and the adjacent curved web until local buckling within the curved webs around the conjunction fillet region. In contrast, as distinct from hybrid RTM I-beams subjected to three-point bending loading, hybrid RTM-made H-beams in three-point flexure tests experienced the resin debonding in the inverted triangular resin-rich zones and the debonding propagation along the interface between the inverted triangular resin-rich zone and the adjacent curved web until complete separation of the curved web from the flange. Progressive damage models （PDMs） were presented to predict fail- ure loads and process of hybrid RTM-made I- and N-beams under three-point flexure. Good cor- relation was achieved between experimental and numerical results.

关键词： Beam Composites Experiment Fabric Molding Simulation

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Effects of tillage managements and maize straw returning on soil microbiome using 16S rDNA sequencing

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Journal of Integrative Plant Biology 2019年第6期61卷 765-777页

作者： xinyao Xia Piaopiao Zhang Linlin He Xingxing Gao Weijun Li Yuanyuan zhou Zongxin Li Hui Li Long Yang Agricultural Big-Data Research Center College of Plant ProtectionShandong Agricultural UniversityTaian 271018China Maize Research Institute Shandong Academy of Agricultural SciencesJinan 250100China School of Biological Science and Technology University of JinanJinan 250022China Department of Clinical Taishan Medical UniversityTaian 271016China

Agricultural practices could affect bacterial diversity and community structure by altering soil physical and chemical properties. Straw returning and tillage practices are widely used in agriculture, however, the effects of these agricultural practices on microbiomes are still unclear. In the present study, we compared the 18 bacterial communities of soil with different straw returning and tillage treatment combinations. The V3-V4 regions of the 16S ribosomal RNA were amplified and analyzed by high-throughput sequencing technology. The results showed that the bacterial communities were consistently dominated by Acidobacteria, Proteobacteria, Actinobacteria, and Chloroflexi. Short-term straw returning and tillage practices significantly altered the diversity, relative abundance and functions of the soil microbiome. Soil subjected to rotary tillage and straw returning (RTS) combination possessed the highest bacterial diversity and lowest ratio of G+/G- bacteria, indicating that RTS could be an efficient integrated management system to improve microbiome in the short term. Double verifications based on relative abundance and network analysis, revealed close relationships of Mycobacterium and Methylibium with RTS, indicating they could serve as biomarkers for RTS. Investigating microbial changes under different agricultural practices will provide valuable foundations for land sustainable utilization and increase crop yields.

关键词： tillage managements maize straw returning microbiome using

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Self-assembly of 3p-Block Metal-based Metal-Organic Frameworks from Structural Perspective

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Chemical Research in Chinese Universities 2022年第1期38卷 31-44页

作者： QIAO Junyi LIU xinyao ZHANG Lirong LIU Yunling State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012P.R.China Sinochem Holdings Corporation Ltd. Beijing 100031P.R.China

Metal-organic frameworks(MOFs) are a class of porous inorganic-organic hybrid materials, which are constructed from diverse inorganic building units and multi-functional organic ligands. Highly ordered pore structures and tailored functionalization have made MOF materials potential for applications in many fields. Among various MOF materials, 3p-block metal(Al, Ga, and In)-based MOFs exhibit higher chemical stability than divalent transition metal-based MOFs due to their higher valence. In this review, Al-MOFs and In-MOFs were mainly discussed from the perspective of categories of inorganic building blocks, coordination types, and numbers of organic ligands. This review will give intuitive guidance to the design and synthesis of novel 3p-block metal-based MOFs with potential applications.

关键词： Metal-organic framework 3p-Block metal Secondary building unit Structure Self-assembly

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