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Journal of Integrative Agriculture 2014年第12期13卷 2565-2576页

作者： xu man-yu ZHOU Ting ZHAO Yan-ying LI Jia-bao xu Heng DONG Han-song ZHANG Chun-ling National Key Laboratory of Integrated management of Crop Diseases and Pests Ministry of Education/College of Plant Protection Nanjing Agricultural University

The harpin protein Hpa1 produced by the rice bacterial blight pathogen promotes plant growth and induces plant resistance to pathogens and insect pests. The region of 10-42 residues （Hpa110-42） in the Hpa1 sequence is critical as the isolated Hpa110-42 fragment is 1.3-7.5-fold more effective than the full length in inducing plant growth and resistance. Here we report that transgenic expression of Hpa110-42 in wheat induces resistance to English grain aphid, a dominant species of wheat aphids. Hpa110-42-induced resistance is effective to inhibit the aphid behavior in plant preference at the initial colonization stage and repress aphid performances in the reproduction, nymph growth, and instar development on transgenic plants. The resistance characters are correlated with enhanced expression of defense-regulatory genes （EIN2, PP2-A, and GSL10） and consistent with induced expression of defense response genes （Hel, PDF1.2, PR-1b, and PR-2b）. As a result, aphid infestations are alleviated in transgenic plants. The level of Hpa110-42-induced resistance in regard to repression of aphid infestations is equivalent to the effect of chemical control provided by an insecticide. These results suggested that the defensive role of Hpa110-42 can be integrated into breeding germplasm of the agriculturally signiifcant crop with a great potential of the agricultural application.

关键词： Hpa110-42 transgenic wheat resistance aphids chemical control

Inspires effective alternatives to backpropagation:predictive coding helps understand and build learning

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Neural Regeneration Research 2025年第11期20卷 3215-3216页

作者： Zhenghua xu Miao yu yuhang Song School of Health Sciences and Biomedical Engineering Hebei University of TechnologyTianjinChina Department of Computer Science University of OxfordOxfordUK

Artificial neural networks are capable of machine learning by simulating the hiera rchical structure of the human *** enable learning by brain and machine,it is essential to accurately identify and correct the prediction errors,referred to as credit assignment(Lillicrap et al.,2020).It is critical to develop artificial intelligence by understanding how the brain deals with credit assignment in neuroscience.

关键词： assignment learning enable

航空搜索救援任务下山地应急救援装备配备分析

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长春工程学院学报（社会科学版） 2018年第2期19卷 58-61页

作者：徐毓蔓中国民航大学经济管理学院天津300300

针对我国航空应急救援装备配备缺乏规范性、专业化等问题,本文简介了航空应急救援的概念,对搜索救援任务下的航空应急救援概念进行了定义,探讨了分析山地应急救援装备配备的意义,分析了山地航空搜救特点及任务需求,基于直升机和无人机... 详细信息

针对我国航空应急救援装备配备缺乏规范性、专业化等问题,本文简介了航空应急救援的概念,对搜索救援任务下的航空应急救援概念进行了定义,探讨了分析山地应急救援装备配备的意义,分析了山地航空搜救特点及任务需求,基于直升机和无人机两种主要用于山地救援的航空器,结合山地救援任务环境,将机载专业搜救设备分为导航设备、定位设备、通信设备和专业救援作业装备等类别,提出了相应的装备配备标准,并通过案例分析给出航空应急救援装备配备的建议。

关键词：航空应急救援搜索救援山地装备配备

基于DoDAF的通用航空医疗救援标准体系研究

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长春工程学院学报（自然科学版） 2021年第4期22卷 73-77页

作者：徐毓蔓长春工程学院吉林应急管理学院长春130012

针对通用航空医疗救援标准覆盖不全,标准类型比重不均衡等问题,确定通用航空医疗救援标准体系构建的需求与重点,基于美国国防部体系结构框架(DoDAF),从体系结构角度对航空医疗救援标准体系结构框架进行直观模型描述,建立了多个作战视图... 详细信息

针对通用航空医疗救援标准覆盖不全,标准类型比重不均衡等问题,确定通用航空医疗救援标准体系构建的需求与重点,基于美国国防部体系结构框架(DoDAF),从体系结构角度对航空医疗救援标准体系结构框架进行直观模型描述,建立了多个作战视图、服务视图、标准视图产品,明确了航空医疗救援的概念、目标、范围、组织关系、任务需求、服务需求等关键要素,并通过服务需求对相关标准进行分类,确定了通用航空医疗救援标准体系结构框架,可为通用航空医疗救援标准体系的构建提供参考。

关键词：通用航空医疗救援美国国防部体系结构框架(DoDAF) 标准体系

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数线估计及其教学意蕴

数学教育学报 2023年第5期32卷 68-75页

作者：徐玉嫚陆世奇徐文彬南京师范大学课程与教学研究所江苏南京210097

数线估计是衡量和预测儿童数学能力的一个重要工具.儿童在NLE上的表现体现了其对数字的理解,NLE的准确性越高,意味着儿童在数学方面有着更大的成就.已有研究表明:NLE分有界NLE和无界NLE两种;个体表征数字的模型包括线性模型、对数模型等... 详细信息

数线估计是衡量和预测儿童数学能力的一个重要工具.儿童在NLE上的表现体现了其对数字的理解,NLE的准确性越高,意味着儿童在数学方面有着更大的成就.已有研究表明:NLE分有界NLE和无界NLE两种;个体表征数字的模型包括线性模型、对数模型等;影响NLE表现的因素包括NLE的不同类型与数值范围和家庭经济状况与文化教育等外部因素,以及个体的数学认知能力和认知加工过程等内在因素.结合数线和NLE的特点,在教学中,教师可以将其作为辅助学生学习的工具,运用无界NLE丰富识数计数教学,发展学生的数感、运用有界NLE辅助比例知识教学,发展学生的推理和测量能力等,以促进学生数学认知及其它数学能力的发展.

关键词：数线数线估计数字心理表征影响因素教学意蕴

目的地熟悉度对民族地区旅游者地方性感知的影响研究——以湖北恩施土家族苗族自治州为例

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经济地理 2015年第11期35卷 205-210页

作者：熊剑平余意峰龚晶徐曼玉湖北大学中国旅游案例教学与研究中心中国湖北武汉430062 湖北大学旅游发展研究院中国湖北武汉430062 湖北大学资源环境学院中国湖北武汉430062

以少数民族地区旅游者地方性感知为研究对象,以湖北恩施土家族苗族自治州作为调研地,采用深度访谈和问卷调查等方法收集相关数据,探讨民族地区的旅游者地方性感知的构成维度以及目的地熟悉度对地方性感知的影响。研究表明:1旅游者地方... 详细信息

以少数民族地区旅游者地方性感知为研究对象,以湖北恩施土家族苗族自治州作为调研地,采用深度访谈和问卷调查等方法收集相关数据,探讨民族地区的旅游者地方性感知的构成维度以及目的地熟悉度对地方性感知的影响。研究表明:1旅游者地方性感知可分为自然旅游环境、人文旅游环境、民俗文化遗存、地方民风特质四个维度;2不同熟悉度游客在自然旅游环境和人文旅游环境的感知上无明显差异;3高熟悉度的旅游者在民俗文化遗存维度上的感知显著高于中熟悉度和低熟悉度的旅游者,在地方民风特质维度上的感知显著高于低熟悉度的旅游者。相对于一般的自然和人文环境,民俗文化遗存和地方民风特质更能体现民族旅游地的独特身份。民族地区旅游者地方性感知研究不仅有利于丰富现有地方感理论,也为民族地区地方性特质的深度挖掘和旅游地的开发实践提供参考。

关键词：地方性熟悉度民族地区

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第01期 288-296页

作者： Shuai Liu Wen-Qiang xu Ying-Tong Di man-Cheng Tang Ding-Kang Chen Ming-Ming Cao Yao-Wen Chang Hong-yu Tang Chun-Mao yuan Jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei xu Ying Zeng yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. This provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

关键词：

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Optimization Strategies of Na_(3)V_(2)(PO_(4))_(3) Cathode Materials for Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 204-251页

作者： Jiawen Hu Xinwei Li Qianqian Liang Li xu Changsheng Ding yu Liu Yanfeng Gao School of Materials Science and Engineering Shanghai UniversityShanghai 200444People’s Republic of China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050People’s Republic of China

Na_(3)V_(2)(PO_(4))_(3)(NVP)has garnered great attentions as a prospective cathode material for sodium-ion batteries(SIBs)by virtue of its decent theoretical capacity,superior ion conductivity and high structural ***,the inherently poor electronic conductivity and sluggish sodium-ion diffusion kinetics of NVP material give rise to inferior rate performance and unsatisfactory energy density,which strictly confine its further application in ***,it is of significance to boost the sodium storage performance of NVP cathode *** to now,many methods have been developed to optimize the electrochemical performance of NVP cathode *** this review,the latest advances in optimization strategies for improving the electrochemical performance of NVP cathode material are well summarized and discussed,including carbon coating or modification,foreign-ion doping or substitution and nanostructure and morphology *** foreign-ion doping or substitution is highlighted,involving Na,V,and PO_(4)^(3−)sites,which include single-site doping,multiple-site doping,single-ion doping,multiple-ion doping and so ***,the challenges and prospects of high-performance NVP cathode material are also put *** is believed that this review can provide a useful reference for designing and developing high-performance NVP cathode material toward the large-scale application in SIBs.

关键词： Sodium-ion batteries Na_(3)V_(2)(PO_(4))_(3) Cathode materials Electrochemical performance Optimization strategies

Recent Advances in Artificial Sensory Neurons: Biological Fundamentals, Devices, Applications, and Challenges

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NANO-MICRO LETTERS 2025年第1期17卷 1-49页

作者： Zhong, Shuai Su, Lirou xu, Mingkun Loke, Desmond yu, Bin Zhang, Yishu Zhao, Rong Guangdong Inst Intelligence Sci & Technol Zhuhai 519031 Hengqin Peoples R China Zhejiang Univ Coll Integrated Circuits Hangzhou 3112000 Peoples R China ZJU Hangzhou Global Sci & Technol Innovat Ctr Hangzhou 310027 Peoples R China Singapore Univ Technol & Design Dept Sci Math & Technol Singapore 487372 Singapore Tsinghua Univ Dept Precis Instruments Beijing 100084 Peoples R China Tsinghua Univ Ctr Brain Inspired Comp Res Beijing 100084 Peoples R China Tsinghua Univ IDG McGovern Inst Brain Res Beijing 100084 Peoples R China

Biological fundamentals and recent progress of artificial sensory neurons are systematically *** device, performance metrics, and potential applications of artificial sensory neurons are *** for the future development of artificial sensory neurons are discussed. Spike-based neural networks, which use spikes or action potentials to represent information, have gained a lot of attention because of their high energy efficiency and low power consumption. To fully leverage its advantages, converting the external analog signals to spikes is an essential prerequisite. Conventional approaches including analog-to-digital converters or ring oscillators, and sensors suffer from high power and area costs. Recent efforts are devoted to constructing artificial sensory neurons based on emerging devices inspired by the biological sensory system. They can simultaneously perform sensing and spike conversion, overcoming the deficiencies of traditional sensory systems. This review summarizes and benchmarks the recent progress of artificial sensory neurons. It starts with the presentation of various mechanisms of biological signal transduction, followed by the systematic introduction of the emerging devices employed for artificial sensory neurons. Furthermore, the implementations with different perceptual capabilities are briefly outlined and the key metrics and potential applications are also provided. Finally, we highlight the challenges and perspectives for the future development of artificial sensory neurons.

关键词： Artificial intelligence Emerging devices Artificial sensory neurons Spiking neural networks Neuromorphic sensing

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方钢管混凝土柱-钢梁半刚性节点参数分析

建筑科学与工程学报 2017年第4期34卷 72-77页

作者：徐嫚梁思雨张力滨陈玉韩振宁东北林业大学土木工程学院黑龙江哈尔滨150040 中国地震局工程力学研究所黑龙江哈尔滨150080 中国兵器工业规划研究院北京100053

为了研究方钢管混凝土柱-钢梁半刚性节点的力学性能和影响因素,以方钢管混凝土柱-钢梁半刚性节点为研究对象,采用数值模拟分析方法研究了节点角钢厚度、角钢短肢长肢比及螺栓直径等参数对该类节点受力性能的影响规律,并给出了节点初始... 详细信息

为了研究方钢管混凝土柱-钢梁半刚性节点的力学性能和影响因素,以方钢管混凝土柱-钢梁半刚性节点为研究对象,采用数值模拟分析方法研究了节点角钢厚度、角钢短肢长肢比及螺栓直径等参数对该类节点受力性能的影响规律,并给出了节点初始转动刚度的建议公式。结果表明:角钢厚度的变化对节点初始刚度影响较小,但对节点的塑性刚度和承载力影响较大;角钢短肢长肢比在一定范围内对节点刚度和承载力影响较明显,超过范围后只对节点的承载力有较大影响;螺栓直径的变化对节点承载力和刚度有一定影响,但影响程度较小,可不作为主要的影响参数。

关键词：方钢管混凝土柱半刚性节点数值模拟分析力学性能