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Sora变革教育:基于教师角色与学习方式的洞见

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国家教育行政学院学报 2024年第4期316卷 48-59页

作者：刘革平胡翰林秦渝超孙帆西南大学重庆400715

生成式人工智能的发展又迎来重大飞跃,具有“通用物理世界模拟器”潜力的文生视频模型——Sora被推出。技术的革新势必对教育领域产生重大影响,Sora对教师角色的影响如何?又将为学习方式带来哪些变革?回答好这两个问题是推动Sora变革与... 详细信息

生成式人工智能的发展又迎来重大飞跃,具有“通用物理世界模拟器”潜力的文生视频模型——Sora被推出。技术的革新势必对教育领域产生重大影响,Sora对教师角色的影响如何?又将为学习方式带来哪些变革?回答好这两个问题是推动Sora变革与赋能教育领域的关键。基于此,本研究在对Sora进行本质解析的基础上,分析Sora对教师角色产生的影响,包括Sora对教师角色挑战的冲击、Sora变革下教师何为的应对以及Sora与教师协同发展的共进;接着提出Sora对学习方式的变革,包括进行“可想即可见”的学习、虚实融合学习的升级、人机协同学习的革新、促进创造性学习实现以及丰富个性化学习形态等;最后对Sora变革教育进行审思与展望,包括Sora的教育边界确立、Sora的使用标准建立、Sora应用的算力需求以及开发教育专属Sora模型。研究以期促进Sora有效应用于教育领域,提升学习效果与质量。

关键词： Sora 生成式人工智能教育变革教师角色学习方式

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基于轨迹预测的驾驶意图识别

时代汽车 2024年第19期 180-182页

作者：袁辉谢庆计明军曾斌吴炜昌胡寒霖中铁南方投资集团有限公司广东阳江529566 大连海事大学辽宁大连116026

驾驶意图识别对于确保交通安全和提升交通效率至关重要。为实现对未来车辆驾驶意图的预测,本研究基于轨迹预测与驾驶意图识别方法,选用Argoverse公开数据集作为训练和测试数据集,并提出了一种结合VectorNet轨迹预测模型和随机森林分类... 详细信息

驾驶意图识别对于确保交通安全和提升交通效率至关重要。为实现对未来车辆驾驶意图的预测,本研究基于轨迹预测与驾驶意图识别方法,选用Argoverse公开数据集作为训练和测试数据集,并提出了一种结合VectorNet轨迹预测模型和随机森林分类模型的驾驶意图识别方法,实现对未来3s的驾驶意图识别。为验证该方法的有效性,本文将新提出的VectorNet-随机森林模型与LSTM-随机森林模型进行了对比,结果表明本文方法的效果更佳。这一方法为未来自动驾驶和智能交通系统的发展提供了参考和借鉴。

关键词：轨迹预测驾驶意图识别图神经网络随机森林

军校学员“一体两翼”健康教育模式的构建研究

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联勤军事医学 2024年第4期38卷 343-346页

作者：胡翰林荣红辉张玲郑传芬陈济安陆军军医大学军事预防医学系军队健康教育教研室重庆400038

目的在新的医疗派驻保障模式下,探索构建新的军校学员健康教育模式,为提高军校学员健康教育水平奠定基础。方法以近年来军校派驻门诊部运行实践为基础,分析派驻门诊部可利用的两方面优势资源,运用理论与实践相结合的研究方法,构建军校... 详细信息

目的在新的医疗派驻保障模式下,探索构建新的军校学员健康教育模式,为提高军校学员健康教育水平奠定基础。方法以近年来军校派驻门诊部运行实践为基础,分析派驻门诊部可利用的两方面优势资源,运用理论与实践相结合的研究方法,构建军校学员新的健康教育模式。结果“一体两翼”健康教育模式是将派驻门诊部作为军校学员健康教育的实施主体,将医院的医疗资源和军校的教学资源作为“两翼”,进行整合利用,形成“医院-派驻门诊部-学员”和“军校-派驻门诊部-学员”的联动效应。结论“一体两翼”健康教育模式可充分发挥派驻门诊部的特殊体制优势,对进一步提高军校学员健康教育水平具有重要意义。

关键词：军校学员派驻门诊部 “一体两翼”健康教育模式派驻保障体制

Efficient energy transfer in organic light-emitting transistor with tunable wavelength

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Nano Research 2022年第4期15卷 3647-3652页

作者： Ke Zhou Jian Tang Shaofan Fang Ke Jiang Fangxu Yang Deyang Ji Jing Xiang Jie Liu huanli Dong(✉) Cheng Han hanlin hu Xiaotao Zhang Wenping hu Yumeng Shi International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of SciencesTianjin UniversityTianjin 300072China Hoffman Institute of Advanced Materials Shenzhen PolytechnicShenzhen 518060China Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China

Key challenges in the development of organic light-emitting transistors(OLETs)are blocking both scientific research and practical applications of these devices,e.g.,the absence of high-mobility emissive organic semiconductor materials,low device efficiency,and color ***,we report a novel device configuration called the energy transfer organic light-emitting transistor(ET-OLET)that is intended to overcome these *** organic fluorescent dye-doped polymethyl methacrylate(PMMA)layer is inserted below the conventional high-mobility organic semiconductor layer in a single-component OLET to separate the functions of the charge transport and light-emitting layers,thus making the challenge to essentially integrate the high mobility and emissive functions within a single organic semiconductor in a conventional OLET or multilayer OLET *** this architecture,there is little change in mobility,but the external quantum efficiency(EQE)of the ET-OLET is more than six times that of the conventional OLET because of the efficient Förster resonance energy transfer,which avoids exciton-charge *** addition,the emission color can be tuned from blue to white to green-yellow using the sourcedrain and gate *** proposed structure is promising for use with electrically pumped organic lasers.

关键词： color tunability energy transfer organic light-emitting transistor(OLET) Förster resonance energy transfer(FRET)

In-depth understanding of ionic liquid assisted perovskite film formation mechanism for two-step perovskite photovoltaics

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Journal of Energy Chemistry 2022年第10期31卷 599-606,I0015页

作者： Fei Wang Patrick Wai-Keung Fong Zhiwei Ren Hai-Lun Xia Kang Zhou Kai Wang Jiajie Zhu Xiaoxi huang Xiao-Yuan Liu Hao Wang Yumeng Shi Haoran Lin Quanyao Zhu Gang Li hanlin hu Hoffman Institute of Advanced Materials Shenzhen PolytechnicShenzhen 518055GuangdongChina Department of Electronic and Information Engineering Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityHong Kong 999077China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 43007HubeiChina International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060GuangdongChina The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057GuangdongChina Institute of Flexible Electronics Northwestern Polytechnical UniversityXi’an 710072ShannxiChina School of Physics Science and Engineering Tongji UniversityShanghai 200092China

Ionic liquids(ILs)have been widely applied in the one-step fabrication of perovskite with noticeable enhancement in the device ***,in-depth mechanism of ionic-liquid-assisted perovskite film formation is not well understood for also important two-step perovskite fabrication method,with better control of crystallization *** this work,we introduced ionic liquid methylammonium formate(MAFa)into organic salt to produce perovskite film via a two-step *** investigations on the influence of MAFa on the perovskite thin film formation mechanism were *** liquid is shown to assist lowering the perovskite formation enthalpy upon the density functional theory(DFT)calculation,leading to an accelerated crystallization process evidenced by in-situ UV-Vis absorption measurement.A gradient up-down distribution of ionic liquid has been confirmed by timeof-flight ***,besides the surface passivation,we found the HCOO-can diffuse into the perovskite crystals to fill up the halide vacancies,resulting in significant reduction of trap *** perovskite films with significantly larger grains and less defect density were prepared with the help of MAFa IL,and the corresponding device efficiency over 23%was obtained by two-step process with remarkably improved *** research work provides an efficient strategy to tune the morphology and opto-electronic properties of perovskite materials via ionic-liquid-assisted two-step fabrication method,which is beneficial for upscaling and application of perovskite photovoltaics.

关键词： Halide vacancies Perovskite solar cells Two-step method Ionic liquid

Ionic liquid engineering enabled in-plane orientated 1D perovskite nanorods for efficient mixed-dimensional perovskite photovoltaics

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InfoMat 2023年第8期5卷 81-93页

作者： Fei Wang Dawei Duan Kang Zhou YZBXue Xiao Liang Xianfang Zhou Chuangye Ge Chao Zhou Jin Xiang Jiajie Zhu Quanyao Zhu Haoran Lin Yumeng Shi Yonghua Chen Gang Li hanlin hu Hoffmann Institute of Advanced Materials Shenzhen PolytechnicShenzhenthe People's Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhanthe People's Republic of China Oxford Instruments Technology(Shanghai)Co.Ltd. Shanghaithe People's Republic of China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhenthe People's Republic of China School of Physics Science and Engineering Tongji UniversityShanghaithe People's Republic of China Key Laboratory of Flexible Electronics(KLoFE)&Institute of Advanced Materials(IAM) School of Flexible Electronics(Future Technologies)Nanjing Tech University(NanjingTech)Nanjingthe People's Republic of China Department of Electronic and Information Engineering Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityKowloonHong Kongthe People's Republic of China

Mixed-dimensional engineering of perovskite material has been demonstrated as a facile and promising strategy to improve both photovoltaic performance and long-term stability of perovskite solar cells(PSCs).In this study,we report an in-plane preferred orientation of 1D perovskite induced by an ionic liquid(IL)of 1-(3-cyanopropyl)-3-methylimidazolium chloride(CPMIMCl)for the first time via sequential deposition approach,leading to a mixed dimensional perovskite thin *** generated one-dimensional(1D)CPMIMPbI3 with in-plane orientation resides at the grain boundaries of three-dimensional(3D)perovskite can be appreciably observed from the morphology level,leading to creation of high-quality films with large grain size with more efficient defect ***,the dispersion of IL in the bulk phase of perovskite material allows for the formation of 1D perovskite for multiple level passivation to inhibit non-radiative recombination and optimize carrier *** IL engineering strategy not only yields a mixed-dimensional perovskite heterostructure with in-plane orientation 1D perovskite nano-rods but also significantly improves the opto-electronic property with suppressed trap *** a result,the CPMIMCl-treated PSCs show an enhanced photovoltaic performance with a champion power conversion efficiency(PCE)up to 24.13%.More importantly,benefiting from the hydrophobicity of formed 1D perovskite and defects suppression,the corresponding PSC demonstrates an excellent longterm stability and maintain 97.1%of its pristine PCE at 25C under 50%RH condition over 1000 *** research provides an innovative perspective for employing the low dimensional engineering to optimize the performance and stability of photovoltaic devices.

关键词： 1D/3D perovskite ionic liquid perovskite solar cells stability

Achieving Tunable Cold/Warm White‑Light Emission in a Single Perovskite Material with Near‑Unity Photoluminescence Quantum Yield

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纳微快报:英文版 2023年第11期15卷 305-316页

作者： Bo Zhou Aixuan Du Dong Ding Zexiang Liu Ye Wang Haizhe Zhong Henan Li hanlin hu Yumeng Shi International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060People’s Republic of China Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing Yantai 264006People’s Republic of China Key Laboratory of Material Physics School of Physics and MicroelectronicsZhengzhou UniversityMinistry of EducationZhengzhou 450052People’s Republic of China School of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Hoffmann Institute of Advanced Materials Shenzhen PolytechnicShenzhen 518060People’s Republic of China

Single materials that exhibit efficient and stable white-light emission are highly desirable for lighting *** paper reports a novel zero-dimensional perovskite,Rb_(4)CdCl_(6):Sn^(2+),Mn^(2+),which demonstrates exceptional white-light properties including adjustable correlated color temperature,high color rendering index of up to 85,and near-unity photoluminescence quantum yield of 99%.Using a co-doping strategy involving Sn^(2+)and Mn^(2+),cyan-orange dual-band emission with complementary spectral ranges is activated by the self-trapped excitons and d-d transitions of the Sn^(2+)and Mn^(2+)centers in the Rb_(4)CdCl_(6)host,***,although Mn^(2+)ions doped in Rb_(4)CdCl_(6)are difficult to excite,efficient Mn^(2+)emission can be realized through an ultra-high-efficient energy transfer between Sn^(2+)and Mn^(2+)via the formation of adjacent exchange-coupled Sn–Mn *** from this efficient Dexter energy transfer process,the dual emission shares the same optimal excitation wavelengths of the Sn^(2+)centers and suppresses the non-radiative vibration relaxation ***,the relative intensities of the dual-emission components can be modulated flexibly by adjusting the fraction of the Sn^(2+)ions to the Sn–Mn *** co-doping approach involving short-range energy transfer represents a promising avenue for achieving high-quality white light within a single material.

关键词： 0D perovskite Multi-ion doping Near-unity white light Energy transfer Self-trapped excitons

Device Engineering Investigation in Solution processed Organic and Hybrid Perovskite Solar Cells

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Device Engineering Investigation in Solution processed Organ...

2019第四届中国能源材料化学研讨会

作者： Gang Li hanlin hu Ping-li Qin Guang Yang Mriganka Singh Department of Electronic and Information Engineering Hong Kong Polytechnic University

＜正＞Hybrid organo-metal halide perovskite solar cells （PSCs） and organic polymer solar cells （OPVs） are two of the most promising candidates for next generation photovoltaic device primarily due to their high efficiency,printability and low *** Engineering has played significant role in advancing the organic polymer solar cell technology,including inverted solar cell structure,tandem polymer solar cells etc.[1] Many of the know-hows have also been successfully applied in hybrid perovskite solar cell *** this talk,I will present works on the following topics:

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微针在美容整形外科中的应用进展

中华内分泌外科杂志 2021年第6期15卷 669-671页

作者：胡翰林果磊重庆医科大学附属第一医院整形烧伤外科 400016

本文就微针的概念、分类及其在美容领域的应用进行了介绍,总结分析了微针在促进皮片及皮瓣成活、瘢痕修复、面部年轻化、局部麻醉、脱发治疗、皮肤松弛、痤疮治疗、减轻色沉等方面的应用现状,并展望了微针在整形外科中应用的美好前景。

关键词：微针美容整形外科