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Correcting Climate Model Sea Surface Temperature Simulations with Generative Adversarial Networks:Climatology,Interannual Variability,and Extremes

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Advances in Atmospheric Sciences 2024年第7期41卷 1299-1312页

作者： Ya WANG Gang HUANG Baoxiang PAN Pengfei liN Niklas BOERS Weichen TAO Yutong CHEN BO liU haijie li State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Earth System Modelling School of Engineering and DesignTechnical University of MunichOttobrunn 85521Germany Potsdam Institute for Climate Impact Research Potsdam 14412Germany Department of Mathematics and Global Systems Institute University of ExeterExeter EX44QEUK CMA Earth System Modeling and Prediction Centre(CEMC) Chinese Academy of Meteorological SciencesBeijing 100081China

Climate models are vital for understanding and projecting global climate change and its associated ***,these models suffer from biases that limit their accuracy in historical simulations and the trustworthiness of future *** these challenges requires addressing internal variability,hindering the direct alignment between model simulations and observations,and thwarting conventional supervised learning ***,we employ an unsupervised Cycle-consistent Generative Adversarial Network(CycleGAN),to correct daily Sea Surface Temperature(SST)simulations from the Community Earth System Model 2(CESM2).Our results reveal that the CycleGAN not only corrects climatological biases but also improves the simulation of major dynamic modes including the El Niño-Southern Oscillation(ENSO)and the Indian Ocean Dipole mode,as well as SST ***,it substantially corrects climatological SST biases,decreasing the globally averaged Root-Mean-Square Error(RMSE)by 58%.Intriguingly,the CycleGAN effectively addresses the well-known excessive westward bias in ENSO SST anomalies,a common issue in climate models that traditional methods,like quantile mapping,struggle to ***,it substantially improves the simulation of SST extremes,raising the pattern correlation coefficient(PCC)from 0.56 to 0.88 and lowering the RMSE from 0.5 to *** enhancement is attributed to better representations of interannual,intraseasonal,and synoptic scales *** study offers a novel approach to correct global SST simulations and underscores its effectiveness across different time scales and primary dynamical modes.

关键词： generative adversarial networks model bias deep learning El Niño-Southern Oscillation marine heatwaves

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ECMWF模式对我国西南环横断山区冬季近地面2m温度的预报评估

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高原气象 2024年第1期43卷 88-98页

作者：吴诗梅唐娜梁雨琪欧旭阳李海杰陈昊明云南大学地球科学学院云南昆明650500 中国气象科学研究院北京100811 中国气象局横断山区(低纬高原)灾害性天气研究中心云南昆明650500

从冬季平均温度、温度日变化及日较差等方面入手,基于2021年CLDAS逐小时产品评估了ECMWF全球高分辨率确定性数值预报产品对我国西南环横断山区复杂地形区近地面2 m温度的预报能力,并通过区分高地形区(川西高原)和低地形区(四川盆地南部)... 详细信息

从冬季平均温度、温度日变化及日较差等方面入手,基于2021年CLDAS逐小时产品评估了ECMWF全球高分辨率确定性数值预报产品对我国西南环横断山区复杂地形区近地面2 m温度的预报能力,并通过区分高地形区(川西高原)和低地形区(四川盆地南部),对比了不同地形区近地面2 m温度预报的偏差特征。结果表明:(1)ECMWF模式可合理预报我国西南环横断山区冬季平均2 m温度的空间分布特征,但偏差分布与地形高度有关,随着地形高度的增加,预报偏差呈增大趋势。(2)ECMWF模式很好再现了西南环横断山区冬季温度的日变化特征,峰值时刻出现在14:00(北京时);各时刻温度的预报偏差在不同地形高度存在差异,川西高原和横断山区的最大负偏差出现在下午,四川盆地南部的最大负偏差出现在早晨。同时,高地形区各时刻的预报偏差均高于低地形区。(3)ECMWF模式对日内各时刻不同地形处2 m温度的空间分布均有合理预报,但偏差存在日变化特征。特别是在横断山区高地形区,其在各时刻有不同的冷暖偏差特征。(4)在环横断山区温度日较差预报偏差较大的区域(大致为昆明准静止锋线发生频次较高的区域),模式对于温度日较差较大的日数,其2 m温度的预报偏差要大于日较差较小的日数,且在该区域内,温度日较差的预报偏差相对不稳定。

关键词：模式预报偏差环横断山区近地面2 m温度日变化温度日较差

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某混动系统非道路机械联轴器故障处理控制策略优化

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工程机械 2024年第7期55卷 17-21页

作者：李海杰党伟苏宗洁广西柳工机械股份有限公司

针对某混动系统非道路机械联轴器断裂故障后,出现的发电机转速、发动机转速不可控,关闭钥匙无法使发电机、发动机停机和断开低压电故障现象,根据故障时发动机和发电机的实际状态,重新梳理系统的控制逻辑、判断条件、故障后控制指令以及... 详细信息

针对某混动系统非道路机械联轴器断裂故障后,出现的发电机转速、发动机转速不可控,关闭钥匙无法使发电机、发动机停机和断开低压电故障现象,根据故障时发动机和发电机的实际状态,重新梳理系统的控制逻辑、判断条件、故障后控制指令以及发电机、发动机的执行情况和发动机ECU保护逻辑,再根据梳理后情况,对发生故障时的实际测试数据进行分析,确认发电机转速、发动机转速不可控和无法停机、断低压电的故障原因。根据故障原因,针对联轴器故障优化系统的控制逻辑,固化程序后刷写进整车控制器。在整机再次出现故障后,发电机转速和发动机转速可控,能正常停机、断电,从而实现故障后系统可控。优化后的联轴器故障控制策略,能够使发电机和发动机转速可控,整车能够正常下高压,断开低压电。

关键词：非道路混合动力系统发动机发电机联轴器

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越野式伸缩臂叉装车整机稳定性理论计算方法和试验验证

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时代汽车 2024年第7期 106-108页

作者：苏宗洁党伟李海杰广西柳工股份有限公司广西柳州市545000

结合越野式伸缩臂叉装车国标GBT26949.14-2016,通过受力分析及力矩平衡计算,结合稳定区域分析,得出了越野式伸缩臂叉装车稳定性计算分析的理论计算方法。通过试验验证了理论计算的可靠性,为伸缩臂叉装车的稳定性设计提供依据。在产品开... 详细信息

结合越野式伸缩臂叉装车国标GBT26949.14-2016,通过受力分析及力矩平衡计算,结合稳定区域分析,得出了越野式伸缩臂叉装车稳定性计算分析的理论计算方法。通过试验验证了理论计算的可靠性,为伸缩臂叉装车的稳定性设计提供依据。在产品开发设计伊始就可以初估虚拟样机的稳定性能,降低了样机设计制造和试验的风险。

关键词：伸缩臂叉装车稳定性试验验证

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高血压脑出血患者血肿清除术后认知功能障碍的相关因素

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中国实用神经疾病杂志 2024年第6期27卷 674-679页

作者：李海杰谭富强司徒嘉欣广州医科大学附属脑科医院广东广州510160

目的探讨高血压脑出血(HICH)患者血肿清除术后认知功能障碍的相关因素。方法回顾性分析广州医科大学附属脑科医院2019-06—2023-06采用脑血肿清除术治疗的高血压脑出血患者的临床资料,以术后发生认知功能障碍(CD)的30例患者作为CD组,根... 详细信息

目的探讨高血压脑出血(HICH)患者血肿清除术后认知功能障碍的相关因素。方法回顾性分析广州医科大学附属脑科医院2019-06—2023-06采用脑血肿清除术治疗的高血压脑出血患者的临床资料,以术后发生认知功能障碍(CD)的30例患者作为CD组,根据CD组患者的年龄、性别,按1∶2比例采用倾向匹配法从术后未发生CD的患者中筛选60例患者纳入无认知功能障碍(NCD)组。比较2组患者一般资料,将其中有统计学差异的因素代入Logistic分析,探索术后发生CD的相关因素(危险因素或保护因素)。各项相关因素采用概率法拟合构建风险模型,以受试者工作特征(ROC)曲线分析各危险因素与风险模型对HICH血肿清除术后CD发生的预测价值,计算诊断临界(cut-off)值。结果2组患者术中MAP均值、BIS均值与术后24hS100β、NSE、SOD水平比较,差异有统计学意义(P0.9,P<0.05)。结论术后24h高SOD水平为HICH血肿清除术后发生CD的保护因素,术后24hS100β、NSE水平较高为CD发生的危险因素,据此完善围术期检查及术中干预措施有利于降低高血压脑出血患者血肿清除术后认知功能障碍的发生概率。

关键词：高血压脑出血血肿清除术认知功能障碍颅内血肿清除术保护因素危险因素

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Transcriptomics integrated with metabolomics reveals the mechanism of CaCl_(2)-HCl electrolyzed water-induced glucosinolate biosynthesis in broccoli sprouts

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Food Science and Human Wellness 2024年第2期13卷 801-812页

作者： Cui li Shuhui Song Yanan He haijie liu College of Food Science and Nutritional Engineering China Agricultural UniversityBeijing 100083China Institute of Agri-food Processing and Nutrition Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China

Glucosinolates are important phytochemicals in *** investigated the effect of CaCl_(2)-HCl electrolyzed water(CHEW)on glucosinolates biosynthesis in broccoli *** results showed that CHEW treatment significantly decreased reactive oxygen species(ROS)and malondialdeh yde(MDA)contents in broccoli *** the the 8^(th)day,compared to tap water treatment,the the total glucosinolate content of broccoli sprouts with CHEW treatment increased by 10.6%and calcium content was dramatically enhanced from 14.4 mg/g DW to 22.7 mg/g *** transcriptome and metabolome analyses revealed that CHEW treatment activated ROS and calcium signaling transduction pathways in broccoli sprouts and they interacted through MAPK ***,CHEW treatment not only promoted the biosynthesis of amino acids,but also enhanced the expression of structural genes in glucosinolate synthesis through transcription factors(MYBs,bHLHs,WRKYs,etc.).The results of this study provided new insights into the regulatory network of glucosinolates biosynthesis in broccoli sprouts under CHEW treatment.

关键词： Broccoli sprouts CaCl_(2)-HCl electrolyzed water Glucosinolates Transcriptomics Metabolomics

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Biochar-based Bacillus subtilis inoculant for enhancing plants disease prevention:microbiota response and root exudates regulation

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Biochar 2023年第1期5卷 1389-1404页

作者： Zihe Deng Jianwen Wang Yanhui He Zhuo Tu Fei Tian haijie li Zhansheng Wu Xiongfang An Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003XinjiangChina School of Environmental and Chemical Engineering Xi’an Key Laboratory of Textile Chemical Engineering AuxiliariesXi’an Polytechnic UniversityXi’an 710048China

Plants regulate root exudates to form the composition of rhizosphere microbial community and resist disease *** studies advocate intervention with biochar(BC)and exogenous microbe to enhance this process and improve plant ***,the mechanism by which BC mediates exogenous microorganisms to enhance root exudate-soil microbial defensive feedback remains ***,a BC-based Bacillus subtilis SL-44 inoculant(BC@SL)was prepared to investigate the defensive feedback mechanism for plants,which enhanced plant growth and defense more than BC or SL-44 ***@SL not only strengthened the direct inhibition of Rhizoctonia solani Rs by solving the problem of reduced viability of a single SL-44 inoculant but also indirectly alleviated the Rs stress by strengthening plant defensive feedback,which was specifically manifested by the following:(1)increasing the root resistance enzyme activities(superoxide dismutase up to 3.5 FC);(2)increasing the abundance of beneficial microbe in soil(0.38-16.31%Bacillus);and(3)remodeling the composition of root exudates(palmitic acid 3.95-6.96%,stearic acid 3.56-5.93%,2,4 tert-butylphenol 1.23-2.62%,increasing citric acid 0.94-1.81%,and benzoic acid 0.97-2.13%).The mechanism reveals that BC@SL can enhance the positive regulatory effect between root exudates and microorganisms by optimizing their ***,BC@SL is a stable and efficient new solid exogenous soil auxiliary,and this study lays the foundation for the generalization and application of green pesticides.

关键词： Soil amendment Plant defense Rhizosphere microecology Root exudates Microbial community

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“菌剂+分子膜”发酵工艺改善秸秆与畜粪共堆肥效率

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西安工程大学学报 2024年第2期38卷 75-84页

作者：王涛常小箭李方向李海杰张传雨武占省陈妮西安市农业技术推广中心陕西西安710061 西安工程大学环境与化学工程学院陕西西安710048 陕西省现代农业培训中心陕西西安710018

为更好地对农业废弃物进行合理利用,提高堆肥产品营养效率,采用新型“菌剂+分子膜”发酵工艺对改善秸秆与畜粪共堆肥过程中的理化性质、腐熟度、腐殖化和磷组分动态进行研究。结果表明,土壤总有机碳(TOC)、含水率(MC)、C/N和黄腐酸(FA)... 详细信息

为更好地对农业废弃物进行合理利用,提高堆肥产品营养效率,采用新型“菌剂+分子膜”发酵工艺对改善秸秆与畜粪共堆肥过程中的理化性质、腐熟度、腐殖化和磷组分动态进行研究。结果表明,土壤总有机碳(TOC)、含水率(MC)、C/N和黄腐酸(FA)均呈下降趋势,总氮(TN)、腐殖酸(HA)、总磷(TP)和有效磷(AP)含量明显增加(p<0.05),这说明共堆肥产品的腐熟度和营养水平都得到了改善。此外,腐殖化指数分析和液相磷31核磁共振波普(^(31)P-NMR)测定分别表明了共堆肥腐殖化程度的提高和磷组分的变化。根据NY/T 525—2021,除水分外,最终堆肥产品的性能符合法规要求。研究结果可为“菌剂+分子膜”发酵工艺在提高堆肥效率方面提供全面的认识,为实现农业废弃物资源化提供科学可行的策略。

关键词：生物+分子膜好氧堆肥有机肥腐殖化磷组分

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Nonlinear proinflammatory effect of short-term PM_(2.5)exposure:A potential role of lipopolysaccharide

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Journal of Environmental Sciences 2024年第2期136卷 292-300页

作者： Fangxia Shen Mutong Niu Haoxuan Chen Ting Zhang Jing li haijie Tong Yan Wu School of Space and Environment Beihang UniversityBeijing 100191China College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China Institute of Surface Science Helmholtz-Zentrum HereonGeesthacht 21502Germany School of Environmental Science and Engineering Shandong UniversityJinan 250100China

The association between PM_(2.5)(particulate matter≤2.5μm)short-term exposure and its health effect is non-linear from the epidemiological *** this nonlinearity is suggested to be related with the PM_(2.5)heterogeneity,however,the underlying biological mechanism is still ***,a total of 38 PM_(2.5)filters were collected continuously for three weeks in winter Beijing,with the ambient PM_(2.5)varying between 10 and 270μg/m^(3).Human monocytes-derived macrophages(THP-1)were treated with PM_(2.5)water-soluble elutes at10μg/mL to investigate the PM_(2.5)short-term exposure effect from a proinflammatory *** proinflammatory cytokine tumor necrosis factor(TNF)induced by the PM_(2.5)elutes at equal concentrations were unequal,showing the heterogeneity of PM_(2.5)proinflammatory *** the various chemical and biological components,lipopolysaccharide(LPS)showed a strong positive association with the TNF ***,some outliers were observed among the TNF-LPS ***,for PM_(2.5)from relatively clean air episodes,the higher LPS amount corresponded to relatively low TNF *** this phenomenon was also observed in the promotion tests by treating macrophages with PM_(2.5)elutes dosed with additional trace *** expression analysis indicated the involvement of oxidative-stress related genes in the LPS signaling ***,a potential oxidative-stress-mediated suppression on the PM_(2.5)-borne LPS proinflammatory effect was proposed to be accounted for the ***,the results showed the differential role of LPS in the heterogeneity of PM_(2.5)proinflammatory effects from a component-based *** experimental studies are needed to elucidate the signaling pathway of LPS attached on PM_(2.5)from different air quality episodes.

关键词： Fine PM PM_(2.5)pro-inflammatory effects Aerosol health effect Endotoxin Oxidative stress

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Experimental demonstrations of high-Q superconducting coplanar waveguide resonators

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Chinese Science Bulletin 2013年第20期58卷 2413-2417页

作者： li haijie WANG YiWen WEI lianFu ZHOU PinJia WEI Qiang CAO ChunHai FANG YuRong YU Yang WU PeiHeng Quantum Optoelectronics Laboratory Southwest Jiaotong University State Key Laboratory of Optoelectronic Materials and Technologies School of Physics and Engineering Sun Yat-sen University Research Institute of Superconductor Electronics Nanjing University

We successfully designed and fabricated an absorption-type of superconducting coplanar waveguide (CPW) resonators. The resonators are made from a niobium film (about 160 nm thick) on a high-resistance Si substrate, and each resonator is fabricated as a meandered quarter-wavelength transmission line (one end is short to the ground and another end is capacitively coupled to a through feedline). With a vector network analyzer we measured the transmissions of the applied microwave through the resonators at ultra-low temperature. The obtained loaded quality factors are significantly high, i.e. up to ～10 6 . When the temperature increases slowly from the base temperature (20 mK), the resonance frequencies of the resonators are blue shifted and the quality factors are lowered slightly. In principle, this type of device can integrate a series of CPW resonators with a common feedline, making it a promising candidate as the data bus for coupling distant solid-state qubits and the sensitive detector of single photons.

关键词：共面波导谐振器实验演示超导高Q值矢量网络分析仪单光子探测器质量因素

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