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体育强国建设背景下胡适体育思想的演进与变革

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运动精品 2024年第5期43卷 42-44,48页

作者：夏宇熙马姝儿河海大学体育系江苏常州213000

胡适体育思想在20世纪早期对中国体育发展起到积极的推动作用。在体育强国建设大背景下,该思想需不断演变以适应当代发展。研究首先强调胡适体育思想需融合中国特色体育文化,反映历史和价值观。其次,讨论了其在宣扬当代体育精神方面的作... 详细信息

胡适体育思想在20世纪早期对中国体育发展起到积极的推动作用。在体育强国建设大背景下,该思想需不断演变以适应当代发展。研究首先强调胡适体育思想需融合中国特色体育文化,反映历史和价值观。其次,讨论了其在宣扬当代体育精神方面的作用,强调现今需注重全民参与和体育健身。最后,探讨了胡适思想在国际化、多元化和现代化发展中的挑战与机遇,强调适应全球化趋势、融合国际体育思想的重要性,以及合理利用现代科技推动体育的创新。综合而言,胡适体育思想需要变革,以促进中国体育的可持续发展和体育强国建设。

关键词：变革体育强国胡适体育思想

研究缬沙坦与氢氯噻嗪联合治疗高血压心脏病的效果

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系统医学 2024年第10期9卷 100-103页

作者：夏玉喜马尊良鱼台县总医院西院区内科山东济宁272300

目的分析高血压心脏病实施缬沙坦+氢氯噻嗪治疗的价值。方法选取2022年11月—2023年11月鱼台县总医院收治的92例高血压心脏病患者作为研究对象,依据随机数表法分为普通组、研究组,各46例,普通组行缬沙坦治疗,研究组在普通组的基础上加... 详细信息

目的分析高血压心脏病实施缬沙坦+氢氯噻嗪治疗的价值。方法选取2022年11月—2023年11月鱼台县总医院收治的92例高血压心脏病患者作为研究对象,依据随机数表法分为普通组、研究组,各46例,普通组行缬沙坦治疗,研究组在普通组的基础上加用氢氯噻嗪。比较两组的血压、心功能指标、疗效和不良反应发生情况。结果治疗前,两组的血压和心功能指标比较,差异无统计学意义(P均>0.05)。治疗后,研究组的血压和心功能指标均优于普通组,差异有统计学意义(P均<0.05)。研究组治疗总有效率(97.83%)高于普通组(82.61%),差异有统计学意义(χ^(2)=4.434,P<0.05)。研究组的不良反应发生率为4.35%,低于普通组的19.57%,差异有统计学意义(P<0.05)。结论缬沙坦+氢氯噻嗪的方案能迅速降低血压,改善心脏功能,减少不良反应,使高血压心脏病患者得到有效安全的治疗。

关键词：高血压心脏病临床疗效缬沙坦心功能氢氯噻嗪

Focusing characteristics of the relativistic electron beam transmitting in ion channel

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Plasma Science and Technology 2020年第8期22卷 34-40页

作者： yuxi xia Shengpeng YANG Shaoyong CHEN Changjian TANG College of Physics Sichuan UniversityChengdu 610064People's Republic of China

Based on the beam-plasma system model established in this paper,the trajectory of the electron beam in the ion channel is studied quantitatively through the envelope *** different initial system parameters,the focusing transmission conditions of the beam in the ion channel are ***,a series of particle-in-cell simulations are performed,which generally versifies the theoretical results and shows some further details of the focusing behavior of the *** is found that the deceleration of some electrons around the focusing point or the beam-plasma interaction at the ion channel boundary will result in the generation of the residual electrons,which forms the electron return current that leads to the new instabilities influencing the focusing characteristics of the beam.

关键词： plasma ion channel beam-plasma system electron beam envelop

聚焦深化教育教学改革加快建设教育强国——第三届中国基础教育论坛暨中国教育学会第三十五次学术年会综述

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中国基础教育 2024年第1期 74-78页

作者：董玥彤夏玉溪石家丽华东师范大学课程与教学系《中国基础教育》编辑部

教育兴则国家兴,教育强则国家强。为深入贯彻党的二十大以及习近平总书记在第二十届中共中央政治局第五次集体学习时的重要讲话精神,服务“加快建设教育强国”战略任务,中国教育学会于2023年11月25-26日在重庆市举办第三届中国基础教育... 详细信息

教育兴则国家兴,教育强则国家强。为深入贯彻党的二十大以及习近平总书记在第二十届中共中央政治局第五次集体学习时的重要讲话精神,服务“加快建设教育强国”战略任务,中国教育学会于2023年11月25-26日在重庆市举办第三届中国基础教育论坛暨中国教育学会第三十五次学术年会。

关键词：中国教育学会中国基础教育教育强国年会综述集体学习深化教育教学改革学术年会论坛

Antimony doped CsPbI_(2)Br for high-stability all-inorganic perovskite solar cells

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Nano Research 2024年第3期17卷 1508-1515页

作者： Mengfei Zhu Lina Qin Yuren xia Junchuan Liang Yaoda Wang Daocheng Hong yuxi Tian Zuoxiu Tie Zhong Jin State Key Laboratory of Coordination Chemistry Ministry of Education(MOE)Key Laboratory of Mesoscopic ChemistryMOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Nanjing Tieming Energy Technology Co. Ltd.Nanjing 210093China Suzhou Tierui New Energy Technology Co. Ltd.Suzhou 215228China

All-inorganic perovskites,adopting cesium(Cs+)cation to completely replace the organic component of A-sites of hybrid organic–inorganic halide perovskites,have attracted much attention owing to the excellent thermal ***,all-inorganic iodine-based perovskites generally exhibit poor phase stability in ambient ***,we propose an efficient strategy to introduce antimony(Sb^(3+))into the crystalline lattices of CsPbI_(2)Br perovskite,which can effectively regulate the growth of perovskite crystals to obtain a more stable perovskite *** to the much smaller ionic radius and lower electronegativity of trivalent Sb^(3+)than those of Pb^(2+),the Sb^(3+)doping can decrease surface defects and suppress charge recombination,resulting in longer carrier lifetime and negligible *** a result,the all-inorganic perovskite solar cells(PSCs)based on 0.25%Sb^(3+)doped CsPbI_(2)Br light absorber and screen-printable nanocarbon counter electrode achieved a power conversion efficiency of 11.06%,which is 16%higher than that of the control devices without Sb^(3+)***,the Sb^(3+)doped all-inorganic PSCs also exhibited greatly improved endurance against heat and *** to the use of low-cost and easy-to-process nanocarbon counter electrodes,the manufacturing process of the all-inorganic PSCs is very convenient and highly repeatable,and the manufacturing cost can be greatly *** work offers a promising approach to constructing high-stability all-inorganic PSCs by introducing appropriate lattice doping.

关键词： all-inorganic perovskite solar cells Sb doped cesium lead halide perovskites foreign B-site ions hole-conductor-free phase stability improvement

Multifunctional dual-anion compensation of amphoteric glycine hydrochloride enabled highly stable perovskite solar cells with prolonged carrier lifetime

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Nano Research 2024年第6期17卷 5131-5137页

作者： Lina Qin Mengfei Zhu Yuren xia Xingkai Ma Daocheng Hong yuxi Tian Zuoxiu Tie Zhong Jin State Key Laboratory of Coordination Chemistry MOE Key Laboratory of Mesoscopic ChemistryMOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Nanjing Tieming Energy Technology Co.Ltd. Nanjing 210093China Suzhou Tierui New Energy Technology Co.Ltd. Suzhou 215228China

Throughout years,the two-step spin-coating process is the most common method to prepare organic lead halide perovskite ***,the short reaction time of dropping the solution at the second step means that PbI2 cannot be completely transformed into perovskite *** solve this problem,we report the introduction of glycine hydrochloride(GlyHCl)into the second step of the two-step spin-coating process to prepare a FA_(0.9)MA_(0.1)PbI_(3-x)%-GlyHCl perovskite material(namely FAMA-x%-GlyHCl,where FA=formamidinium,MA=methylammonium,and x%stands for the molar ratio of GlyHCl added in FA iodide/MA iodide(FAI/MAI)precursor solution).The Cl−ion in GlyHCl assists the formation ofα-phase perovskite,and the-COO−group coordinates with Pb2+cation in a bridging way,making up for the anion vacancy in perovskite lattice and resulting in high absorption *** perovskite solar cells(PSCs)based on FAMA-9%-GlyHCl achieve a long carrier lifetime(527.0 ns),a photoelectric conversion efficiency(PCE)of 19.40%and good thermal stability,maintaining 85.8%of the initial PCE after being continuously heated at 60℃for 500 *** study helps to solve the problem of incomplete reaction in the two-step spin-coating process and puts forward a new solution for preparing high coverage perovskite films with large grain size.

关键词： dual-anion compensation glycine hydrochloride perovskite solar cells carrier lifetime thermal and moisture stability

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206GHz光子带隙谐振腔回旋管

强激光与粒子束 2012年第2期24卷 431-435页

作者：夏玉玺刘高峰唐昌建四川大学物理科学与技术学院成都610065 中国科学院电子学研究所北京100190

分析了光子晶体谐振腔的模式选择功能,实现光子晶体谐振腔回旋管振荡器高阶电磁模与高次电子回旋模的有效耦合,并成功抑制了模式竞争。通过对光子晶体谐振腔禁带特性的分析,定出了工作模式为TE23模,还建立了光子晶体谐振腔回旋管的等效... 详细信息

分析了光子晶体谐振腔的模式选择功能,实现光子晶体谐振腔回旋管振荡器高阶电磁模与高次电子回旋模的有效耦合,并成功抑制了模式竞争。通过对光子晶体谐振腔禁带特性的分析,定出了工作模式为TE23模,还建立了光子晶体谐振腔回旋管的等效半径的概念,设计了自洽非线性理论和相关的计算机数值模拟程序。研究发现TE23模能有效地与电子的二次回旋谐波相互作用,其耦合频率为206GHz,并极大地降低了对工作磁场的要求。在考虑诸多物理因素影响的情况下,对该二次谐波光子带隙谐振腔(PBGC)回旋管振荡器进行了参数优化,得到了电压40kV、电流4.2A、磁场3.925T、输出功率35kW、互作用效率21%的二次谐波TE23模PBGC回旋管振荡器。

关键词：高功率微波光子带隙谐振腔回旋管二次谐波注-波互作用

被低估的教师重复:小学课堂的回声话语功能研究

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教育学术月刊 2023年第10期 82-90页

作者：夏玉溪刘良华华东师范大学课程与教学系上海200062

在课堂回音中,重复(repeat)指教师完全重复学生话语,或者教师选择性重复学生话语,也可视教师重复为回音中的“回声话语”(echo utterance)。由于认为回声话语较为简单、没有给对话带来新的信息,其功能与意义往往被忽视,但也有研究者指出... 详细信息

在课堂回音中,重复(repeat)指教师完全重复学生话语,或者教师选择性重复学生话语,也可视教师重复为回音中的“回声话语”(echo utterance)。由于认为回声话语较为简单、没有给对话带来新的信息,其功能与意义往往被忽视,但也有研究者指出,回声话语标志着师生立场的靠近。文章以进一步追问“师生立场的靠近是如何发生的”为基点,以立场三角理论为理论框架,采用对话句法理论的核心工具与会话分析,转录、分析了2节小学语文公开课,探索了师生立场一致性发生的过程。结论展示了回声话语两个层面的功能:首先在个体认知层面,当师生立场不一致时,回声话语在“具体化”的过程中,使师生认知体系形成了一致性,而当师生立场一致时,回声话语在肯定、认同学生知识贡献的基础上,为对话意义增量打下基础;其次在社会功能方面,教师通过回声话语悬置了立场,在立场三角中扮演着参与者与协调者,为更多学生参与会话打开了空间。

关键词：课堂回音重复回声话语立场三角对话句法

Experimental observation of multiple topological nodal structure in LaSb_(2)

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Science China(Physics,Mechanics & Astronomy) 2024年第4期67卷 138-145页

作者： yuxi Qiao Fuyi Wang Huaiqiang Wang Zicheng Tao Zhicheng Jiang Zhengtai Liu Soohyun Cho Fayuan Zhang Qingkai Meng Wei xia Yichen Yang Zhe Huang Jishan Liu Zhonghao Liu Zengwei Zhu Shan Qiao Yanfeng Guo Haijun Zhang Dawei Shen State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China National Synchrotron Radiation Laboratory and School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210093China School of Physics and Technology Nanjing Normal UniversityNanjing 210023China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and TechnologyWuhan 430074China ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China Institute of High-Pressure Physics School of Physical Science and Technology Ningbo UniversityNingbo 315211China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Unconventional fermions in the immensely studied topological semimetals are the source for rich exotic topological ***,using symmetry analysis and first-principles calculations,we propose the coexistence of multiple topological nodal structure in LaSb_(2),including topological nodal surfaces,nodal lines and in particular eightfold degenerate nodal points,which have been scarcely observed in a single ***,utilizing angle-resolved photoemission spectroscopy,we confirm the existence of nodal surfaces and eightfold degenerate nodal points in LaSb_(2).The intriguing multiple topological nodal structure might play a crucial role in giving rise to the large linear *** work renews the insights into the exotic topological phenomena in LaSb_(2).

关键词： eightfold degenerate points multiple topological nodal structure angle-resolved photoemission spectroscopy linear unsaturated magnetoresistance