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基线选择对热浪事件计算方法的影响

河南师范大学学报（自然科学版） 2025年第1期53卷 125-135页

作者：陈远范宏翔彭凯邓建明彭霁虹中国科学院南京地理与湖泊研究所南京210008 重庆亿森动力环境科技有限公司重庆400000

热浪已成为世界上危害性最大的自然灾害之一,近年来全球都经历了日益刷新纪录的热浪事件,然而学术界还没有统一热浪定义.基于对目前还存在争议的热浪基线选择(即参考气候背景)进行研究.通过统计1951-2022年我国692个气象站逐日平均气温... 详细信息

热浪已成为世界上危害性最大的自然灾害之一,近年来全球都经历了日益刷新纪录的热浪事件,然而学术界还没有统一热浪定义.基于对目前还存在争议的热浪基线选择(即参考气候背景)进行研究.通过统计1951-2022年我国692个气象站逐日平均气温数据,基于分位数法对比了固定基线、变化基线和滑动基线3种方法对于暴发频次、持续天数、最大强度和热浪间隔时间等4个关键热浪指数进行比较.结果显示,受全球变暖的影响,固定基线法(选择1951-1980年为气候背景计算相对阈值)倾向于提高当前热浪发生概率的估计,而变化基线法(以历史所有数据作为气候背景计算依据)和滑动基线法(以每年的前30 a数据作为基线计算依据)则能在一定程度上考虑温度平稳变化的影响;3种基线计算方法得到的热浪指数仅在绝对值上存在显著差异,而对于热浪指数长期变化趋势、空间分布规律等具有高度的一致性.基于生物在长期进化中具有适应环境的特点,建议采用滑动基线法将一段时期的气候态背景作为热浪判断依据,重点关注热浪造成的生物的响应和生态影响.

关键词：极端事件热浪定义逐日气温气候基线

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Hydrogen peroxide-induced changes in intracellular pH of guard cells precede stomatal closure

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Cell Research 2001年第1期11卷 37-43页

作者： ZHANG XIAO, FA CAI DONG, JUN FENG GAO, CHUN peng SONG (Department of Biology, Henan University, kaifeng 475001, China) (College of Life Sciences, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China) 2College of Life Sciences Northwest Sci-Tech University of Agriculture and Forestry Yangling 712100 China 1Department of Biology Henan University Kaifeng 475001 China 2College of Life Sciences Northwest Sci-Tech University of Agriculture and Forestry Yangling 712100 China 1Department of Biology Henan University Kaifeng 475001 China

Epidermal bioassay demonstrated that benzylamine, a membrane-permeable weak base, can mimick hydrogen peroxide (H2O2) to induce stomatal closure, and butyric acid, a membrane-permeable weak acid, can partly abolish the H2O2-induced stomatal closure. Confocal pH mapping with the probe 5-(and-6)- carboxy seminaphthorhodafluor- 1 - acetoxymethylester (SNARF-1-AM) revealed that H2O2 leads to rapid changes in cytoplasmic and vacuolar pH in guard cells of Viola faba L, i. e. alkalinization of cytoplasmic areas occur red in parallel with a decrease of the vacuolar pH, and that butyric acid pretreatment can abolish alkalinization of cytoplasmic areas and acidification of vacuolar areas of guard cells challenged with H2O2. These results imply that the alkalinization of cytoplasm via efflux of cytosol protons into the vacuole in guard cells challenged with H2O2 is important at an early stage in the signal cascade leading to stomatal closure.

关键词： H2O2 pH SNARF-1-AM confocal Vicia guard cell.

Achievements　and　Challenges：Minister　peng　on　China’s　Population　SituationAnd　Family　Planning　Programme

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China Population Today 1996年第2期13卷 3-6页

作者： P peng

ＡｃｈｉｅｖｅｍｅｎｔｓａｎｄＣｈａｌｌｅｎｇｅｓ：ＭｉｎｉｓｔｅｒＰｅｎｇｏｎ　Ｃｈｉｎａ＇ｓＰｏｐｕｌａｔｉｏｎＳｉｔｕａｔｉｏｎＡｎｄＦａｍｉｌｙＰｌａｎｎｉｎｇＰｒｏｇｒａｍｍｅ（Ｔｈｅｆｏｌｌｏｗｉｎｇｉｓ... 详细信息

ＡｃｈｉｅｖｅｍｅｎｔｓａｎｄＣｈａｌｌｅｎｇｅｓ：ＭｉｎｉｓｔｅｒＰｅｎｇｏｎ　Ｃｈｉｎａ＇ｓＰｏｐｕｌａｔｉｏｎＳｉｔｕａｔｉｏｎＡｎｄＦａｍｉｌｙＰｌａｎｎｉｎｇＰｒｏｇｒａｍｍｅ（Ｔｈｅｆｏｌｌｏｗｉｎｇｉｓａｓｕｍｍａｒｙｏｆｔｗｏｓｐｅｅ...

关键词： Program

Statement　by　Minister　peng　Peiyun　at　the　International　Conference　on　Population　and　Development

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China Population Today 1994年第1期11卷 2-4页

作者： P peng

The stabilization of the world population and the achievement of sustained development depend not only on the endeavours of governments of nations,but also on further strengthening and promotion of international cooperation,The developed countries should make eforts to improve the international economic environment,increase funds for population and development programmes and transfer technology at preferable conditions.

关键词： Statement Minister Population Conference Peiyun peng Development International and by

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Direct transformation of n-alkane into all-trans conjugated polyene via cascade dehydrogenation

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National Science Review 2021年第10期8卷 42-49页

作者： Xuechao Li kaifeng Niu Junjie Zhang Xiaojuan Yu Haiming Zhang Yuemin Wang Qing Guo pengdong Wang Fangsen Li Zhengming Hao Chaojie Xu Yanning Tang Zhichao Xu Shuai Lu peng Liu Guigu Xue Yen Wei Lifeng Chi Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices Institute of Functional Nano & Soft Materials Soochow University Department of Physics Chemistry and Biology IFMLink?ping University Institute of Functional Interfaces Karlsruhe Institute of Technology Department of Chemistry Southern University of Science and Technology Vacuum Interconnected Nanotech Workstation (Nano-X) Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of Sciences Key Laboratory of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University

Selective C(sp~3)-H activation is of fundamental importance in processing alkane feedstocks to produce high-value-added chemical products. By virtue of an on-surface synthesis strategy, we report selective cascade dehydrogenation of n-alkane molecules under surface constraints, which yields monodispersed all-trans conjugated polyenes with unprecedented length controllability. We are also able to demonstrate the generality of this concept for alkyl-substituted molecules with programmable lengths and diverse functionalities, and more importantly its promising potential in molecular wiring.

关键词： C(sp3)–H activation alkane transformation on-surface synthesis dehydrogenation molecular wiring

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西医学术语汉译史研究的三个面相

中国科技术语 2025年第1期27卷 51-56页

作者：缪蓬上海理工大学外语学院上海200093

目前学界对近代“西医东渐”的研究可谓汗牛充栋,其中的一个焦点问题是西医学术语究竟通过何种形式在汉语医学场域完成了翻译定名和概念阐释等过程。文章旨在揭示西医学术语汉译史研究的复杂性与跨学科性,通过将既存研究所显示的词典史... 详细信息

目前学界对近代“西医东渐”的研究可谓汗牛充栋,其中的一个焦点问题是西医学术语究竟通过何种形式在汉语医学场域完成了翻译定名和概念阐释等过程。文章旨在揭示西医学术语汉译史研究的复杂性与跨学科性,通过将既存研究所显示的词典史、词汇史和概念史等研究路径相融合,探索用于追溯并再现西医学术语汉译过程的新方法。文章指出,西医学术语汉译史涉及术语翻译、概念阐释和知识建构等过程,因而其研究具有词汇、概念及知识的三重面相,三者同构共生、互补互融。在研究中对三者加以有机整合,有助于勾勒西医学术语汉译史原貌。

关键词：西医学术语汉译史词汇概念知识

Enhanced rate capability and cycle stability of Ti2C MXene for sodium storage through an aniline molecules welding strategy

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Tungsten 2025年第1期 161-171页

作者： Hao Chen Ya-Qin Wang Dong-Ting Zhang Bei Zhao Min-peng Li Chen-Yang Li Tian-peng Xu Mao-Cheng Liu State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology School of Computer and Communication Technology Lanzhou University of Technology

MXenes obtained significant attention in the field of energy storage devices due to their characteristic layered structure,modifiable surface functional groups,large electrochemically active surface,and regulable interlayer ***,the self-restacking and sluggish ions diffusion kinetics performance of MXenes during the alkali metal ions insertion/extraction process severely impedes their cycle stability and rate *** paper proposes an aniline molecule welding strategy for welding p-phenylenediamine（PPDA） into the interlayers of Ti2C through a dehydration condensation *** welded PPDA molecules can contribute pillar effect to the layered structure of *** pillar effect effectively maintains the structural stability during the sodium ions insertion/extraction process and effectively expands the interlayer spacing of Ti2C from 1.16 to 1.38 nm,thereby enhancing ions diffusion kinetics performance and improving the long-term cycle *** Ti2C-PPDA demonstrates outstanding Na+storage capability,exhibiting a specific capacity of 100.2 mAh·g-1at a current density of 0.1 A·g-1over 960 cycles and delivering a remarkable rate capability 81.2 mAh·g-1at a current density of 5 A·*** study demonstrates that expanding interlayer spacing is a promising strategy to enhance the Na+storage capacity and improve long-term cycling stability,which provides significant guidance for the design of two-dimensional Na+storage materials with high-rate capability and cycle stability.

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Interpretable Data-Driven Learning With Fast Ultrasonic Detection for Battery Health Estimation

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 267-269页

作者： Kailong Liu Yuhang Liu Qiao peng Naxin Cui Chenghui Zhang the School of Control Science and Engineering Shandong University the Information Technology Analytics & Operations GroupQueen's University Belfast

Dear Editor,Health management is essential to ensure battery performance and safety, while data-driven learning system is a promising solution to enable efficient state of health(SoH) estimation of lithium-ion(Liion) batteries. However, the time-consuming signal data acquisition and the lack of interpretability of model still hinder its efficient deployment. Motivated by this, this letter proposes a novel and interpretable data-driven learning strategy through combining the benefits of explainable AI and non-destructive ultrasonic detection for battery SoH estimation. Specifically, after equipping battery with advanced ultrasonic sensor to promise fast real-time ultrasonic signal measurement, an interpretable data-driven learning strategy named generalized additive neural decision ensemble(GANDE) is designed to rapidly estimate battery SoH and explain the effects of the involved ultrasonic features of interest.

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Autonomous Vehicles—the Remaining Challenges

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汽车工程 2021年第4期43卷 451-458页

作者： Huei peng Department of Mechanical Engineering University of MichiganMichigan 48105USA

Autonomous vehicles are essential for mobility in big cities,just like how elevators make high-rise buildings *** significant progress has been achieved over the last 15 years,there are still several remaining challen... 详细信息

关键词： autonomous vehicles testing and evaluation