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小学生时代 2024年第1期 18-19页

作者：东方ic 东方ic

美国俄勒冈州新建机器人制造工厂, 每年将生产超过 1 万台人形物流仓储机器人, 此举标志着人类开始大规模生产商用人形机器人.

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路上的车“可可爱爱”

中学生天地（高中综合版）（B版） 2024年第3期 4-5页

作者：叶蕾 ic photo

1英国伦敦。在伦敦至布赖顿老爷车大赛中,参赛者驾驶着1905年以前生产的汽车,行驶在威斯敏斯特桥上,经过议会大厦。

关键词：威斯敏斯特布赖顿参赛者驾驶汽车桥上议会大厦

Simplified seismic scenario analysis of existing masonry buildings accounting for local site effects

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Frontiers of Structural and Civil engineering 2024年第2期18卷 309-318页

作者： Ayşe e.ÖZSOYÖZBAY Işıl SANRI KARAPINAR Zehra N.KUTLU İsmail e.KILIÇ Department of Civil engineering Maltepe UniversityIstanbul 34857Turkey School of engineering and Construction Oryx Universal CollegeDoha 12253Qatar

This study discusses the effects of local sites and hazard amplification on the seismic vulnerability assessment of existing masonry *** this context,a rapid seismic evaluation procedure was implemented on an old masonry building stock in the historical center Galata,located inİstanbul,to determine the seismic risk priority of the built *** scenarios were generated for all soil classes,different moment magnitudes,and source-to-site distances to obtain more accurate results for the seismic vulnerability assessment of the studied building ***,damage distributions estimated under nine different scenarios with/without site effects were compared and illustrated in maps to discuss changes in vulnerability owing to amplification *** this study,by re-examining the rapid seismic evaluation procedure by including geo-hazard-based assessment,the importance of site effects on the vulnerability and risk assessment of built heritage was *** proposed framework integrating field data and local site effects is believed to advance the current applications for vulnerability assessment of masonry buildings and provide an improvement in the application of rapid seismic assessment procedures with more reliable results.

关键词： masonry buildings seismic vulnerability assessment cultural heritage local site effect

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新展里的 “新世界”

中学生天地（高中综合版）（B版） 2024年第1期 4-5页

作者：叶蕾 ic photo 视觉中国

CLASSIFicATIONS OF DUPIN HYPeRSURFACeS IN LIe SPHeRe GeOMeTRY

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Acta Mathematica Scientia 2024年第1期44卷 1-36页

作者： Thomas e.CeCIL Department of Mathematics and Computer Science College of the Holy CrossWorcesterMA01610USA

This is a survey of local and global classification results concerning Dupin hypersurfaces in S^(n)(or R^(n))that have been obtained in the context of Lie sphere *** emphasis is on results that relate Dupin hypersurfaces to isoparametric hypersurfaces in *** with these classification results,many important concepts from Lie sphere geometry,such as curvature spheres,Lie curvatures,and Legendre lifts of submanifolds of S^(n)(or R^(n)),are described in *** paper also contains several important constructions of Dupin hypersurfaces with certain special properties.

关键词： Dupin hypersurfaces isoparametric hypersurfaces Lie sphere geometry Lie sphere transformations Lie curvatures

Investigating the impact of the universal function of the nuclear proximity potential in heavy-ion fusion cross sections

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Communications in Theore.ical Physics 2024年第5期76卷 86-93页

作者： R Gharaei e Sarvari Department of Physics Sciences FacultyHakim Sabzevari UniversityPO Box 397SabzevarIran Department of Physics Faculty of ScienceFerdowsi University of MashhadPO Box 91775-1436MashhadIran Science Faculty Department of PhysicsTarbiat Modares UniversityTehranIran

The fusion barriers and cross sections of 15 colliding systems with 320≤Z_(1)Z_(2)≤1512 are investigated in detail to understand the influence of the universal function of proximity potential formalism in the heavy-ion fusion *** realize this goal,we select three versions of the phenomenological proximity potentials,including Prox.77,Zhang 2013,and Guo 2013,to calculate the nucleus-nucleus *** experimental fusion cross sections for the selected reactions are analyzed using the standard coupled-channel calculations,including couplings to the low-lying 2^(+)and 3^(-)states in the target and *** calculated results show that the universal functions of the Guo 2013 and Prox.77 models provide the lowest and highest fusion barriers,*** addition,it is found that the height of the fusion barriers is enhanced by increasing the mass number of the projectile from light to heavy *** highest sensitivity to the mass number of the projectile belongs to the results of Prox.77.A discussion is also presented on the influence of the universal function on the radial behavior of the interaction potential in the allowed region for overlapping *** results reveal that the best fit to the experimental data of the fusion cross sections for the reactions involving light and medium nuclei is obtained using the universal function of the Zhang 2013 *** the heavier systems,the results of the Guo 2013 model at sub-barrier energies provide a good description of the available data.

关键词： fusion reactions proximity-type potentials universal function coupled-channel calculations

Are hydrides under high-pressure-high-temperature superconductors?

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National Science Review 2024年第7期11卷 9-12页

作者： J.e.Hirsch Department of Physics University of California

Contrary to the current consensus, I argue that the existing evidence for high-temperature superconductivity in hydrides under high pressure is not compelling. I suggest that the focus of the field should urgently shift to establish unequivocally experimentally whether or not superconductivity in pressurized hydrides exists, instead of continuing to search for new materials that might show elusive signals of unproven superconductivity at ever higher temperatures. The implications of a negative finding for the theore.ical understanding of superconductivity are discussed.

关键词： Hydrides

FSCIL-eACA: Few-Shot Class-Incremental Learning Network Based on embedding Augmentation and Classifier Adaptation for Image Classification

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Chinese Journal of electronics 2024年第1期33卷 139-152页

作者： Ruru ZHANG Haihong e Meina SONG School of Computer Science Beijing University of Posts and Telecommunications education Department Information Network engineering Research Center Beijing University of Posts and Telecommunications

The ability to learn incrementally is critical to the long-term operation of AI systems. Benefiting from the power of few-shot class-incremental learning(FSCIL), deep learning models can continuously recognize new classes with only a few samples. The difficulty is that limited instances of new classes will lead to overfitting and exacerbate the catastrophic forgetting of the old classes. Most previous works alleviate the above problems by imposing strong constraints on the model structure or parameters, but ignoring embedding network transferability and classifier adaptation(CA), failing to guarantee the efficient utilization of visual features and establishing relationships between old and new classes. In this paper, we propose a simple and novel approach from two perspectives: embedding bias and classifier bias. The method learns an embedding augmented(eA) network with cross-class transfer and class-specific discriminative abilities based on self-supervised learning and modulated attention to alleviate embedding bias. Based on the adaptive incremental classifier learning scheme to realize incremental learning capability,guiding the adaptive update of prototypes and feature embeddings to alleviate classifier bias. We conduct extensive experiments on two popular natural image datasets and two me.ical datasets. The experiments show that our method is significantly better than the baseline and achieves state-of-the-art results.

关键词： Training Adaptation models Visualization Image recognition Prototypes Self-supervised learning Power capacitors

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国内外防灾减灾救灾新闻图片选编

中国减灾 2024年第12期 8-13页

作者： ic photo(图) 澎湃影像(图) 不详

广西桂林:湘江段河流水位上涨沿岸部分低洼地段被淹6月20日,受连续强降雨及水库泄洪影响,广西壮族自治区桂林市全州县湘江河段洪水再次出现峰值,涌的洪水漫过河堤,部分低洼地段被淹。当地政府严阵以待,采取积极措施,减少损失。河南安阳... 详细信息

广西桂林:湘江段河流水位上涨沿岸部分低洼地段被淹6月20日,受连续强降雨及水库泄洪影响,广西壮族自治区桂林市全州县湘江河段洪水再次出现峰值,涌的洪水漫过河堤,部分低洼地段被淹。当地政府严阵以待,采取积极措施,减少损失。河南安阳:遭遇高温少雨天气近期,河南省遭遇严重的高温少雨天气,多地出现干旱现象。图为6月15日,河南省安阳市滑县白马坡村民在田间抗旱保苗。

关键词：低洼地段河南安阳水库泄洪抗旱保苗全州县减少损失广西桂林广西壮族自治区

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尔滨！家里来且了

中国石油石化 2024年第2期 10-11页

作者：视觉中国 ic photo ic photo 视觉中国

进入2024年，“北国冰城”哈尔滨凭借冰雪游等话题彻底火出了圈。游人如织的冰雪大世界、酒店“不随意涨价”的倡议、索菲亚广场新增的暖房子、松花江冰面升起的热气球、背上小书包的企鹅、走出大山的鄂伦春族人等等，哈尔滨以一波又一...

进入2024年，“北国冰城”哈尔滨凭借冰雪游等话题彻底火出了圈。游人如织的冰雪大世界、酒店“不随意涨价”的倡议、索菲亚广场新增的暖房子、松花江冰面升起的热气球、背上小书包的企鹅、走出大山的鄂伦春族人等等，哈尔滨以一波又一波亮眼操作刷新人们的认知。哈尔滨人也在用自己的热情和真诚，吸引着八方来客。

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来源：博看期刊