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教师信息化教学能力提升途径探索——“互联网+教育”背景下

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教育教学论坛 2023年第22期 37-40页

作者：许国但汉兵中南大学自动化学院湖南长沙410083

随着信息技术的高速发展,尤其是近几年慕课、电子书包、翻转课堂等的蓬勃发展,高校对信息化教学的需求量大幅上升,也间接对高校教师的信息化教学能力提出了新的挑战。针对教师课堂教学信息化能力的提升策略,基于对信息化能力提升研究现... 详细信息

随着信息技术的高速发展,尤其是近几年慕课、电子书包、翻转课堂等的蓬勃发展,高校对信息化教学的需求量大幅上升,也间接对高校教师的信息化教学能力提出了新的挑战。针对教师课堂教学信息化能力的提升策略,基于对信息化能力提升研究现状的回顾,指出了目前存在培训普及度不高、体系构建不全以及外部政策不完善等问题。针对现有问题,从信息化教学能力构成、能力分析、培训体系等多个角度对信息化能力提升途径进行分析与探索,为“互联网+教育”背景下的教师教学信息化能力提升提供借鉴。

关键词： “互联网+教育” 教学能力提升信息化教学

Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan han Qifeng han Yi‑bing Cheng Yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

观音岩水电站建设对攀枝花城镇供水影响及解决措施

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水力发电 2017年第1期43卷 15-18页

作者：兰丹韩兵周林孟繁皓秦文杰中国电建集团昆明勘测设计研究院有限公司云南昆明650051

观音岩水电站运行调度时将对下游攀枝花市的生态环境、娱乐囤船及渡口、特别是城市取水等设施产生一定的影响,故对此进行了研究。根据研究的成果,结合攀枝花市政府的意见,推荐攀枝花市区生活用水(含部分生产用水)从观音岩水库取水,以保... 详细信息

观音岩水电站运行调度时将对下游攀枝花市的生态环境、娱乐囤船及渡口、特别是城市取水等设施产生一定的影响,故对此进行了研究。根据研究的成果,结合攀枝花市政府的意见,推荐攀枝花市区生活用水(含部分生产用水)从观音岩水库取水,以保证攀枝花城市生活用水的安全;生产用水仍然从河道取水,并对生产取水口进行改造;同时,设置了350 m^3/s的基荷流量以满足下游河段的生态要求;对于对城市生产、生活影响不大且规模较小的娱乐囤船和渡口,则采取提前预报或进行适当补偿的方式;以解决水电站投运后对下游的影响问题。

关键词：城镇供水影响措施观音岩水电站

Defects‑Rich Heterostructures Trigger Strong Polarization Coupling in Sulfides/Carbon Composites with Robust Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 528-547页

作者： Jiaolong Liu Siyu Zhang dan Qu Xuejiao Zhou Moxuan Yin Chenxuan Wang Xuelin Zhang Sichen Li Peijun Zhang Yuqi Zhou Kai Tao Mengyang Li bing Wei Hongjing Wu Mengyang Li bing Wei Hongjing Wu School of Physics Xidian UniversityXi’an 710071People’s Republic of China School of Advanced Materials and Nanotechnology State Key Discipline Laboratory of Wide Band Gap Semiconductor TechnologyXidian UniversityXi’an 710071People’s Republic of China School of Microelectronics Xidian UniversityXi’an 710071People’s Republic of China School of Telecommunication Engineering Xidian UniversityXi’an 710071People’s Republic of China MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China The Ministry of Education Key Laboratory of Micro and Nano Systems forAerospace School of Mechanical EngineeringNorthwestern PolytechnicalUniversityXi’an 710072People’s Republic of China

Defects-rich heterointerfaces integrated with adjustable crystalline phases and atom vacancies,as well as veiled dielectric-responsive character,are instrumental in electromagnetic *** methods,however,constrain their delicate ***,an innovative alternative is proposed:carrageenan-assistant cations-regulated(CACR)strategy,which induces a series of sulfides nanoparticles rooted in situ on the surface of carbon *** unique configuration originates from strategic vacancy formation energy of sulfides and strong sulfides-carbon support interaction,benefiting the delicate construction of defects-rich heterostructures in M_(x)S_(y)/carbon composites(M-CAs).Impressively,these generated sulfur vacancies are firstly found to strengthen electron accumulation/consumption ability at heterointerfaces and,simultaneously,induct local asymmetry of electronic structure to evoke large dipole moment,ultimately leading to polarization coupling,i.e.,defect-type interfacial ***“Janus effect”(Janus effect means versatility,as in the Greek two-headed Janus)of interfacial sulfur vacancies is intuitively confirmed by both theoretical and experimental investigations for the first ***,the sulfur vacancies-rich heterostructured Co/Ni-CAs displays broad absorption bandwidth of 6.76 GHz at only 1.8 mm,compared to sulfur vacancies-free CAs without any dielectric *** defects-rich heterostructures,this one-pot CACR strategy may steer the design and development of advanced nanomaterials,boosting functionality across diverse application domains beyond electromagnetic response.

关键词： Defects-rich heterointerfaces Sulfides Polarization coupling Electromagnetic wave absorption

禽流感病毒核蛋白单克隆抗体的制备及部分特性鉴定

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细胞与分子免疫学杂志 2006年第5期22卷 648-649,653页

作者：刘芳芳金梅林张安定但汉并陈焕春华中农业大学农业微生物学国家重点实验室动物病原微生物分室湖北武汉430070

目的:制备抗禽流感病毒(AIV)核蛋白(NP)的单克隆抗体(mAb)并进行特性鉴定。方法:分别用甲醛灭活的和TritonX100裂解的AIVH9N2及AIVNP基因的原核表达产物免疫BALB/c小鼠。经细胞融合、间接ELISA筛选及克隆化,建立能稳定分泌抗AIVNPmAb的... 详细信息

目的:制备抗禽流感病毒(AIV)核蛋白(NP)的单克隆抗体(mAb)并进行特性鉴定。方法:分别用甲醛灭活的和TritonX100裂解的AIVH9N2及AIVNP基因的原核表达产物免疫BALB/c小鼠。经细胞融合、间接ELISA筛选及克隆化,建立能稳定分泌抗AIVNPmAb的杂交瘤细胞株。mAb的效价采用间接ELISA测定,用交叉反应试验及间接免疫荧光染色法检测mAb的特异性。结果:经细胞融合、筛选及克隆化,间接ELISA法测定,mAb共得到6株能稳定分泌抗禽流感病毒NPmAb的杂交瘤细胞株,分别命名为4F4、1C3、1G11、1C2、1D10及2E7。1G11、1D10腹水的ELISA效价最高,分别为2-13和2-14。交叉反应试验及间接免疫荧光染色检测表明,两株mAb的特异性良好。结论:共获得6株抗AIVNP的mAb,其中2株mAb1C11和1D10的效价最高,特异性良好,为AIV的研究及快速诊断方法的建立奠定了基础。

关键词：禽流感病毒单克隆抗体特性鉴定

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou Yuan-Yan Huang Ding-Yue Shang Ying Chen Meng Tian Cheng-Yu Jin Xin Lu bing-Chun Yan han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

A deep learning-based method for segmentation and quantitative characterization of microstructures in weathering steel from sequential scanning electron microscope images

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Journal of Iron and Steel Research International 2022年第5期29卷 836-845页

作者： bing han Wei-hao Wan dan-dan Sun Cai-chang Dong Lei Zhao Hai-zhou Wang Beijing Advanced Innovation Center for Materials Genome Engineering Central Iron&Steel Research InstituteBeijing100081China Qingdao NCS Testing&Corrosion Protection Technology Co. Ltd.Qingdao266071ShandongChina Beijing Key Laboratory of Metal Materials Characterization Central Iron&Steel Research InstituteBeijing100081China

Microstructural classification is typically done manually by human experts,which gives rise to uncertainties due to subjectivity and reduces the overall efficiency.A high-throughput characterization is proposed based on deep learning,rapid acquisition technology,and mathematical statistics for the recognition,segmentation,and quantification of microstructure in weathering *** segmentation results showed that this method was accurate and efficient,and the segmentation of inclusions and pearlite phase achieved accuracy of 89.95%and 90.86%,*** time required for batch processing by MIPAR software involving thresholding segmentation,morphological processing,and small area deletion was 1.05 s for a single *** comparison,our system required only 0.102 s,which is ten times faster than the commercial *** quantification results were extracted from large volumes of sequential image data(150 mm^(2),62,216 images,1024×1024 pixels),which ensure comprehensive *** information,such as three-dimensional density distribution and the frequency of the minimum spatial distance of inclusions on the sample surface of 150 mm^(2),were quantified by extracting the coordinates and sizes of individual features.A refined characterization method for two-dimensional structures and spatial information that is unattainable when performing manually or with software is *** will be useful for understanding properties or behaviors of weathering steel,and reducing the resort to physical testing.

关键词： Deep learning High-throughput Microstructure Sequential image Rapid acquisition Quantitative characterization Segmentation

The energy conversion rates from eddies and mean fl ow into internal lee waves in the global ocean

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Journal of Oceanology and Limnology 2022年第4期40卷 1304-1313页

作者： bing han Laboratory for Coastal Ocean Variation and Disaster Prediction College of Ocean and MeteorologyGuangdong Ocean UniversityZhanjiang 524088China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Institut für Meereskunde Universität HamburgHamburg 20146Germany Key Laboratory of Climate Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong ProvinceGuangdong Ocean UniversityZhanjiang 524088China

Internal lee waves play an important role in transferring energy from eddies to small scale ***,the energy conversion from eddies into lee waves in the global ocean remains poorly *** rates from eddies and from mean fl ow in the global ocean were diff erentiated using single beam sounding data,stratifi cation from climatology,eddy velocity,and mean fl ow from a global ocean *** global integral energy conversion from eddies is estimated to be 0.083 TW and is almost twice as that from the mean fl ow.A new method was developed to study the uncertainties of energy conversion caused by dealing with the topographic *** show that diff erent data processing procedures,and the resolution and accuracy of topographic data have a signifi cant impact on the estimated global energy conversion.

关键词： internal lee waves eddies mean flow energy conversion topography

检测多杀性巴氏杆菌毒素抗体的单抗竞争ELISA方法的建立

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农业生物技术学报 2008年第4期16卷 555-561页

作者：卢顺向敏吴斌赵战勤汤细彪但汉并张建民何华陈焕春华中农业大学动物医学院农业微生物学国家重点实验室

用纯化的产毒素多杀性巴氏杆菌(toxigenie Pasteurella multocida,T~+Pm)毒素基因片段的原核表达产物免疫小鼠(Mus muslucus)制备单抗,并利用表达蛋白和辣根过氧化物酶(HRP)标记的单抗AH12建立了竞争ELISA方法检测多杀性巴氏杆菌毒素抗... 详细信息

用纯化的产毒素多杀性巴氏杆菌(toxigenie Pasteurella multocida,T~+Pm)毒素基因片段的原核表达产物免疫小鼠(Mus muslucus)制备单抗,并利用表达蛋白和辣根过氧化物酶(HRP)标记的单抗AH12建立了竞争ELISA方法检测多杀性巴氏杆菌毒素抗体。经实验确定抗原包被浓度223 ng/mL,待检血清最佳稀释度1∶2,酶标单抗AH12工作浓度1∶3 200,血清抑制率大于50%为阳性。稳定性试验表明,批间和批内变异系数均小于10%。应用竞争ELISA和细胞毒性中和试验同时检测50份已知血清和82份未知血清,已知血清检测结果显示两者阳性符合率为90%,阴性符合率为100%;未知血清检测结果显示竞争ELISA的检出率为40.2%,细胞毒性中和试验检出率为36.6%,两者符合率达91.5%。表明所建立的单抗竞争ELISA方法具有敏感、特异、稳定和简便等特点,在实验室诊断的标准化、猪群萎缩性鼻炎疫苗免疫效果的评价及流行病学调查方面具有应用价值。

关键词：多杀性巴氏杆菌毒素单克隆抗体单抗竞争ELISA 抗体检测