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生态、行动、希望:论欧美恶托邦青少年小说中的“危”与“机”

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河南大学学报（社会科学版） 2024年第2期64卷 78-83,154页

作者：郑松筠张生珍上海海事大学外国语学院上海201306 北京语言大学英语学院北京100083

欧美恶托邦青少年小说与20世纪以来的恶托邦文学传统在“探求更为美好生活”方面一脉相承,却又因其主人公为亲历生态危机与成长转型的青少年而独具特色。书中的青少年为生态灾难之“危”的见证人,更在跨文化的经历中、亲友的支持与信任... 详细信息

欧美恶托邦青少年小说与20世纪以来的恶托邦文学传统在“探求更为美好生活”方面一脉相承,却又因其主人公为亲历生态危机与成长转型的青少年而独具特色。书中的青少年为生态灾难之“危”的见证人,更在跨文化的经历中、亲友的支持与信任中、同龄人抉择的影响下,为追求环境正义和社会正义带来“机”遇,成为具有世界性身份的行动者,并在行动中不断建构具有跨国界联通性、关注非人类生命、质疑资本过度积累之非道德性的青少年文化,为世界可持续发展注入青少年所贡献的希望与力量。

关键词：欧美恶托邦青少年小说生态危机环境正义行动者青少年文化

基于IWOA-ELM算法的脑电情绪识别方法研究

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生物医学工程学杂志 2024年第1期41卷 1-8页

作者：谢松云雷凌俊孙江徐建西北工业大学电子信息学院西安710129 西北工业大学医学研究院西安710129

情绪是人类重要的生理属性,情绪识别技术可以更好地辅助人类进行自我认识。本文针对不同受试者之间的脑电信号(EEG)存在巨大差异的难点,在传统鲸鱼优化算法(WOA)中引入新机制,加速算法的优化和收敛。同时,将改进的鲸鱼优化算法(IWOA)用... 详细信息

情绪是人类重要的生理属性,情绪识别技术可以更好地辅助人类进行自我认识。本文针对不同受试者之间的脑电信号(EEG)存在巨大差异的难点,在传统鲸鱼优化算法(WOA)中引入新机制,加速算法的优化和收敛。同时,将改进的鲸鱼优化算法(IWOA)用于搜索极限学习机模型(ELM)中的最佳训练方案,包括最佳特征集、训练参数以及脑电通道。纳入24种常见的EEG情绪特征进行测试,发现不同受试者最佳脑电情绪特征之间存在一定特异性,同时也具有共性。本文所提方法在脑电情绪识别中获得92.19%的平均识别准确率,显著减少了手动调试模型的工作量,且具有更高的识别精度和更短的训练时间,相较于对照方法具备更优越的性能,为情绪脑电信号解码研究提供了新的思路。

关键词：脑电图情绪识别鲸鱼优化算法特征选择极限学习机

未来已来:心律失常介入治疗的进步遏止心力衰竭进程

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中华心律失常学杂志 2024年第2期28卷 96-102页

作者：褚松筠周菁北京大学第一医院心内科北京100034

心力衰竭(心衰)患者常合并多种心律失常,随着导管消融和器械治疗技术的进展,早期干预心律失常不仅带来患者生活质量的改善,更有助于遏止心衰进程。多项临床研究已为心律失常介入治疗对心功能的获益提供了更多支持。本文回顾新近相关研究... 详细信息

心力衰竭(心衰)患者常合并多种心律失常,随着导管消融和器械治疗技术的进展,早期干预心律失常不仅带来患者生活质量的改善,更有助于遏止心衰进程。多项临床研究已为心律失常介入治疗对心功能的获益提供了更多支持。本文回顾新近相关研究,聚焦于心房颤动、室性心律失常和起搏治疗方面的新介入治疗措施在心衰治疗中的作用。

关键词：心律失常,心性心力衰竭介入治疗导管消融心脏起搏

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肩关节结核临床误诊分析

临床误诊误治 2023年第8期36卷 26-30页

作者：杨松运李刚池张雷莫松全朱朝均川北医学院附属三台医院三台县人民医院骨科四川三台621100

目的探讨肩关节结核的临床特点及误诊原因。方法回顾性分析2019年1月—2021年1月收治误诊的肩关节结核4例的临床资料。结果 4例因肩关节疼痛3个月~1年就诊,左肩2例,右肩2例;其中1例有肺结核病史,误诊为肩关节炎;1例误诊为肩关节滑囊... 详细信息

目的探讨肩关节结核的临床特点及误诊原因。方法回顾性分析2019年1月—2021年1月收治误诊的肩关节结核4例的临床资料。结果 4例因肩关节疼痛3个月~1年就诊,左肩2例,右肩2例;其中1例有肺结核病史,误诊为肩关节炎;1例误诊为肩关节滑囊炎伴细菌感染;1例误诊为肩关节色素沉着绒毛结节性滑膜炎;1例误诊为肩袖损伤行手术治疗,术后切口不愈合。误诊时间3个月~1年。4例均在关节镜下行病灶清理+闭式冲洗引流术,术后病理检查结果均证实为肩关节结核,正规服用抗结核药物,4例随访12个月肩关节功能评价量表评分80~95分。结论肩关节结核诊断困难,漏误诊率高,临床医生应提高警惕,特别是对有结核病史的患者,应及早行病理检查以明确诊断,从而减少误诊。

关键词：结核,骨关节肩关节误诊滑膜炎色素绒毛结节性细菌感染结核分枝杆菌抗结核药关节镜检查

高碘喂养小鼠额皮质一氧化氮合酶阳性神经元的变化

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陕西医学杂志 2008年第4期37卷 396-397,401页

作者：王崇张松筠杨长春王喜栋刘永春孙晓明河北医科大学第二医院检验科石家庄050000 河北医科大学第二医院内分泌科石家庄050000 武警河北总队医院内二科

目的:观察高碘对小鼠额皮质一氧化氮合酶(NOS)阳性神经元的影响,探讨高碘对中枢神经系统的损伤作用。方法:昆明种小鼠(雌雄各半,共50只)分为适碘与高碘组,分别喂以碘浓度为50μg/L,5000μg/L的蒸馏水6个月,做Morris水迷宫行为学测试后... 详细信息

目的:观察高碘对小鼠额皮质一氧化氮合酶(NOS)阳性神经元的影响,探讨高碘对中枢神经系统的损伤作用。方法:昆明种小鼠(雌雄各半,共50只)分为适碘与高碘组,分别喂以碘浓度为50μg/L,5000μg/L的蒸馏水6个月,做Morris水迷宫行为学测试后以还原型尼克酰胺腺嘌呤二核苷酸脱氢酶(NADPH-d)组化法显示小鼠额皮质NOS阳性神经元。结果:与适碘组相比,高碘组小鼠额皮质NOS阳性神经元密度显著降低,且染色变浅;行为学测试中小鼠逃避潜伏期显著延长。结论:小鼠额皮质NOS阳性神经元减少可能是高碘对中枢神经系统功能损伤的病理基础。

关键词：中枢神经系统/损伤碘一氧化氮合酶动物实验

Continuum damage mechanics for sintered powder metals

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Science China(Physics,Mechanics & Astronomy) 2015年第1期58卷 95-106页

作者： YUAN Huang MA songyun ZHANG Long Beijing Institute of Technology School of Mechanical Engineering University of Wuppertal Department of Mechanical Engineering

Sintered metals are characterized by the high porosity(8%)and voids/micro-cracks in *** behavior of the materials is coupled with micro-crack propagation and coalescence of open *** the present work the damage evolution of the sintered iron under multi-axial monotonic loading conditions was investigated experimentally and *** tests indicated that damage of the sintered iron initiated already at a stress level much lower than the macroscopic yield *** damage process can be divided into the stress-dominated elastic damage and the plastic damage described by the plastic *** on the uniaxial tensile tests an elastic-plastic continuum damage model was developed which predicts both elastic damage and plastic damage in the sintered iron under general multi-axial monotonic loading *** predictions agree with experiments with different multi-axial loading paths.A phenomenological continuum damage model for the sintered metal is developed based on the experimental observations to predict the inelastic behavior and damage process to failure under multi-axial loading *** proposed damage model is experimentally verified under different loading conditions.

关键词： sintered metal porous material damage evolution multi-axial damage continuum damage model

Reconciled estimation of Antarctic ice sheet mass balance and contribution to global sea level change from 1996 to 2021

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Science China Earth Sciences 2024年

作者： Rongxing LI Guojun LI Gang HAI Huan XIE Yuan CHENG Wei CHEN Xiangbin CUI Minghu DING Chunchun GAO Tong HAO Changqing KE Chuanjin LI Jin LI Yan LIU Jiangjun RAN Jiawen REN Qiang SHEN Yunzhong SHEN Hongling SHI songyun WANG Zemin WANG Jingang ZHAN Baojun ZHANG Min ZHONG Chunxia ZHOU State Key Laboratory of Remote Sensing Science Faculty of Geographical Science Beijing Normal University Department of Earth and Space Sciences Southern University of Science and Technology State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of Sciences Center for Space Research University of Texas at Austin Chinese Antarctic Center of Surveying and Mapping Wuhan University School of Geospatial Engineering and Science Sun Yat-sen University Center for Spatial Information Science and Sustainable Development Applications Tongji University College of Surveying and Geo-informatics Tongji University Institute for the Conservation of Cultural Heritage School of Cultural Heritage and Information Management Shanghai University College of Resource Environment and Tourism Hubei University of Arts and Science Polar Research Institute of China State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences College of Geodesy and Geomatics Shandong University of Science and Technology School of Geography and Ocean Science Nanjing University Shanghai Astronomical Observatory Chinese Academy of Sciences

The Antarctic Ice Sheet（AIS） has been losing ice mass and contributing to global sea level rise（GSLR）. Given its mass that is enough to cause ～58 m of GSLR, accurate estimation of mass balance trend is critical for AIS mass loss monitoring and sea level rise forecasting. Here, we present an improved approach to reconciled solutions of mass balance in AIS and its regions from multiple contributing solutions using the input-out, altimetric, and gravimetric methods. In comparison to previous methods, such as IMBIE 2018, this approach utilizes an adaptive data aggregation window to handle the heterogeneity of the contributing solutions, including the number of solutions, temporal distributions, uncertainties, and estimation techniques. We improved the regression-based method by using a two-step procedure that establishes ensembled solutions within each method（input-output, altimetry, or gravimetry） and then estimates the method-independent reconciled solutions. For the first time, 16contributing solutions from 8 Chinese institutions are used to estimate the reconciled mass balance of AIS and its regions from1996 to 2021. Our results show that AIS has lost a total ice mass of ～3213±253 Gt during the period, an equivalent of～8.9±0.7 mm of GSLR. There is a sustained mass loss acceleration since 2006, from 88.1±3.6 Gt yr-1during 1996–2005 to 130.7±8.4 Gt yr-1during 2006–2013 and further to 157.0±9.0 Gt yr-1during 2014–2021. The mass loss signal in the West Antarctica and Antarctic Peninsula is dominant and clearly presented in the reconciled estimation and contributing solutions, regardless of estimation methods used and fluctuation of surface mass balance. Uncertainty and challenges remain in mass balance estimation in East Antarctica. This reconciled estimation approach can be extended and applied for improved mass balance estimation in the Greenland Ice Sheet and mountain glacier regions.

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Experimental study on size-dependency of effective permittivity of particle-gas mixture with agglomeration

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仪器仪表学报 2007年第11期28卷 1932-1936页

作者： Li Xiaomin Xu Lijun Li songyun School of Scienee University of Greenwich at Medway Chatham Maritime Chatham Kent ME4 4TB UK School of Instrument Science and Opto-Electronie Engineering Beihang University Beijing 100083 China

The effective medium approximation (EMA) theory is the basis of a capacitance sensor used for concen-tration measurementof a particulate solid flow, its measurementresultis independenton particle size. In existence ofparticle agglomeration or aggradation, however, it is found that the effective permittivity of a gas/solid mixture is de-pendent on particle size. In this paper, a parallel plate, differential capacitance sensor is utilized to investigate theinfluence of particle size on the effective permittivity of the mixture in such a case. Static experiments using threematerials including glass, limestone and quartz particles were carried out in an off-line manner. The volume fractionof particles being tested ranged from20×10-6to 600×10-6, while the particle size was between 3 and 100μ*** results showthat the effective permittivity of a particle-gas mixture with particle agglomeration is largerthan that predicted by EMA and the smaller the particle size, the larger the effective permittivity. The experimentprocess and analysis results are discussed in detail in the paper.

关键词：介质近似值介电常数混合物

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地方应用型本科高校实践教学评价体系研究

时代汽车 2024年第4期 70-72页

作者：高松云杨锋杜晓丽韩佳利青岛恒星科技学院山东省青岛市266100

文章旨在探讨地方应用型本科高校实践教学评价体系的研究。通过对国内外相关研究的梳理和评价,总结现有教学评价体系的优缺点,为建立适合地方应用型本科高校的实践教学评价体系提供理论依据。同时,本研究还介绍了实践教学评价体系的实... 详细信息

文章旨在探讨地方应用型本科高校实践教学评价体系的研究。通过对国内外相关研究的梳理和评价,总结现有教学评价体系的优缺点,为建立适合地方应用型本科高校的实践教学评价体系提供理论依据。同时,本研究还介绍了实践教学评价体系的实施与效果,总结研究结果,并提出改进建议。

关键词：实践教学评价体系应用型本科

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