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基于BIM的智慧农业温室大棚建模分析

农机化研究 2025年第3期47卷 217-221页

作者：李祯庄卓河南工业职业技术学院河南南阳473000

智慧农业是当前农业发展的趋势,而温室大棚作为重要的农业生产设施,对其进行建模分析具有重要意义。为此,基于BIM技术,对Venlo智慧农业温室大棚进行了建模分析。首先,对温室大棚的设计流程进行分析;然后,对BIM工作流做介绍和分析,并对... 详细信息

智慧农业是当前农业发展的趋势,而温室大棚作为重要的农业生产设施,对其进行建模分析具有重要意义。为此,基于BIM技术,对Venlo智慧农业温室大棚进行了建模分析。首先,对温室大棚的设计流程进行分析;然后,对BIM工作流做介绍和分析,并对建筑结构和节点进行深化分析;最后,设计了一栋智慧农业温室大棚,并利用BIM软件对其进行三维建模和分析。实例设计表明:基于BIM技术的智慧农业温室大棚建模分析具有较高的准确性和可操作性,可为农业生产提供重要支持。

关键词：智慧农业 Venlo温室大棚 BIM技术建筑结构三维建模

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单宁酸改性互穿网络水凝胶促进断裂跟腱术后的组织重塑

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中国组织工程研究 2025年第4期29卷 721-729页

作者：张博张振江东北京大学第三医院运动医学科北京市100191

背景:跟腱断裂术后的再生与重塑是临床治疗的难点,组织工程水凝胶材料为促进跟腱修复提供了可能。目的:探究单宁酸改性互穿网络水凝胶对大鼠断裂跟腱组织再生与重塑的作用。方法:①通过蓝光照射及CaSO4溶液浸泡交联制备单宁酸改性互穿... 详细信息

背景:跟腱断裂术后的再生与重塑是临床治疗的难点,组织工程水凝胶材料为促进跟腱修复提供了可能。目的:探究单宁酸改性互穿网络水凝胶对大鼠断裂跟腱组织再生与重塑的作用。方法:①通过蓝光照射及CaSO4溶液浸泡交联制备单宁酸改性互穿网络水凝胶,表征水凝胶的微观形貌、力学性能、黏附性能、体外释药性能与生物相容性。②取30只SD大鼠,采用随机数字表法分为假手术组、手术组与水凝胶组,每组10只,后2组建立右后肢跟腱断裂模型,手术组采用改良Kessler法将断裂跟腱重新缝合,水凝胶组采用相同术式缝合断裂跟腱后将单宁酸改性互穿网络水凝胶贴片完全缠绕包裹于断端接合处。术后4周,对断裂跟腱进行影像学检查、组织学评价、生物力学测试及炎症因子水平检测。结果与结论:①扫描电镜下可见单宁酸改性互穿网络水凝胶呈多孔微观结构,孔径为3-10μm,并且水凝胶具备良好的体外释药性能、黏附强度与拉伸强度;CCK-8检测与活/死染色显示,该水凝胶对大鼠骨髓间充质干细胞增殖活性无明显影响,具备良好的生物相容性。②MRI成像显示,与手术组比较,水凝胶组大鼠跟腱呈均一低信号,跟腱前后径厚度减小,与周围组织分界更为明确,表现更接近假手术组。苏木精-伊红与Masson染色显示,手术组大鼠跟腱纤维排列松散混乱,细胞密度增加且排布杂乱,伴有明显炎性细胞浸润,部分区域出现腱内骨化;水凝胶组大鼠跟腱纤维排列有序,细胞密度降低且排布规整,炎性细胞浸润明显减少。手术组大鼠跟腱的拉伸强度低于假手术组(P<0.05),水凝胶组大鼠跟腱的拉伸强度高于手术组(P<0.05)。与假手术组比较,手术组大鼠跟腱中白细胞介素1β、白细胞介素6及肿瘤坏死因子α质量浓度及mRNA表达升高(P<0.05);与手术组比较,水凝胶组3种炎症因子水平及mRNA表达降低。③结果表明,单宁酸改性互穿网络水凝胶可显著抑制局部炎症反应、促进断裂跟腱组织重塑。

关键词：单宁酸水凝胶互穿网络跟腱断裂组织重塑组织再生

生成式人工智能对数据安全保护的挑战及刑法应对

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河南社会科学 2025年第1期33卷 56-63页

作者：聂立泽王祯中山大学法学院广东广州510006

随着生成式人工智能在多个领域的应用,数据安全保护面临新的挑战。在数据安全保护的路径选择上,传统模式选择以数据主体为锚定权利的基准,在赋予数据主体相关权利的基础上,以告知—同意原则作为数据主体的权利边界,建立涉及刑法、民法... 详细信息

随着生成式人工智能在多个领域的应用,数据安全保护面临新的挑战。在数据安全保护的路径选择上,传统模式选择以数据主体为锚定权利的基准,在赋予数据主体相关权利的基础上,以告知—同意原则作为数据主体的权利边界,建立涉及刑法、民法等多个领域的数据安全制度。但不得不承认,伴随人工智能的发展,这种基于数据主体权利的数据保护模式逐渐表现出认知与结构性困难,需要从路径选择上进行转变。相对于以数据主体权利为核心的保护模式,刑法可以从风险的角度考虑,以贝克的风险社会理论作为理论参考,从承认数据主体具有完全理性转变为承认其具有有限理性,将数据安全保护的主要关注点从数据主体的权利保障转移到数据安全风险的预防和管控。此外,在数据安全保护的实质层面上,生成式人工智能侵害数据法益的行为可以概括为行为人利用或针对生成式人工智能实施的行为,以及生成式人工智能在演化、运行过程中“自主”实施的行为。刑法应以风险作为主要考量因素,结合已有规定对上述两种行为进行评价。

关键词：生成式人工智能风险预防数据安全刑法规制

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大型体育场馆免低开放政策绩效研究

湖北科技学院学报 2025年第1期45卷 1-9页

作者：李震湖北科技学院体育学院湖北咸宁437100

采用投入产出模型(DEA)分析扩大内需战略下大型体育场馆免低开放政策绩效,包括财政补助资金、场地资源的投入产出效率等;其次,以史密斯政策(Smith)执行理论为基础,围绕政策本身、执行机构、目标群体、政策环境等分析场馆免低开放政策绩... 详细信息

采用投入产出模型(DEA)分析扩大内需战略下大型体育场馆免低开放政策绩效,包括财政补助资金、场地资源的投入产出效率等;其次,以史密斯政策(Smith)执行理论为基础,围绕政策本身、执行机构、目标群体、政策环境等分析场馆免低开放政策绩效的制约因素;最后,提出场馆免低开放政策优化路径:完善场馆免低开放补贴指标体系;探索发放体育场馆健身券;优化绩效考核指标体系;加强场馆免低开放绩效评价,加快信息化建设步伐等等。

关键词：大型体育场馆免费低收费开放政策绩效制约因素

Metastable seed-crystals: epitaxial growth of branched-array organic heterostructure nanowires

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Science China Chemistry 2025年

作者： Jin Feng zhen-Yu Geng Ting-Yao Song Ying-Xin Ma Chuan-Zeng Wang Wei Zhang Hong-Tao Lin Jin Zhou Shu-Ping Zhuo Shu-Hai Chen Xue-Dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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二十世纪初中文报刊“翻译小说”的伪译身份考证——以《中外小说林》刊载小说《毒刀案》为例

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肇庆学院学报 2025年第1期46卷 60-65页

作者：原贞肇庆学院外国语言文化学院广东肇庆526061

二十世纪初中文报刊连载翻译小说多数作译者身份不明,单凭报刊刊登的翻译作品信息,难以判断它们是真正意义上的翻译。发行于香港地区和广州的期刊《中外小说林》刊载了若干名为“翻译”的小说文本,但这些小说的文本特征在多方面背离了... 详细信息

二十世纪初中文报刊连载翻译小说多数作译者身份不明,单凭报刊刊登的翻译作品信息,难以判断它们是真正意义上的翻译。发行于香港地区和广州的期刊《中外小说林》刊载了若干名为“翻译”的小说文本,但这些小说的文本特征在多方面背离了翻译作品常规特点。1907—1908年发表在该刊物的《毒刀案》,看似是一篇“翻译”侦探小说,却呈现出以下特点:第一,小说缺乏确实存在的原文来源;第二,文本沿用中文传统小说形式;第三,侦探破案模式不同于彼时西方常规侦探小说模式,不含显著科学元素。多个证据表明,该小说应为伪译。同时,研究发现,伪译者在小说中穿插了外国文化指涉,使其更好地满足彼时中国期刊读者的期待。

关键词：翻译伪译报刊身份考证

FDNet: Fourier transform guided dual-channel underwater image enhancement diffusion network

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Science China Technological Sciences 2025年第1期 62-78页

作者： zhen ZHU Xiaobo LI Qianwen MA Jingsheng ZHAI Haofeng HU School of Marine Science and Technology Tianjin University College of Mechanical Engineering and Automation Fuzhou University

Due to the scattering and absorption of light, underwater imaging yields suboptimal results characterized by low brightness, diminished image contrast, and the loss of details. Current learning-based underwater image enhancement(UIE)methods mainly focus on addressing these issues in the spatial domain, with limited attention to the Fourier frequency *** propose the Fourier transform guided dual-channel underwater image enhancement diffusion network(FDNet), aiming to fully leverage frequency domain information and the characteristics of a diffusion-based generation model. The amplitude-phase dualchannel not only effectively provides feedback on the energy distribution of the image but also incorporates crucial image structure and texture information. Capitalizing on these advantages, we first introduce a Fourier transform-based amplitude-phase dualchannel enhancement front-end network for UIE. This network significantly improves the quality of the network's image input,including brightness and contrast, by incorporating phase congruency edge enhancement and prior-driven amplitude mapping strategies. The preceding network mitigates the overall training challenges caused by poor input image quality. Simultaneously,the application of denoising networks based on lightweight transformers effectively improves the computational time required for each iteration during model training. The results indicate that FDNet outperforms many current learning-based UIE algorithms in restoring images across multiple real underwater image datasets, demonstrating more robust generalization capabilities in degraded underwater scenarios. The competitive performance advantage achieved in enhancing visual quality underscores the effectiveness of our method.

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Exit options sustain altruistic punishment and decrease the second-order free-riders, but it is not a panacea

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Science China(Information Sciences) 2025年第1期 278-291页

作者： Chen SHEN Zhao SONG Lei SHI Jun TANIMOTO zhen WANG Faculty of Engineering Sciences Kyushu University School of Statistics and Mathematics Yunnan University of Finance and Economics School of Computing Engineering and Digital Technologies Teesside University School of Artificial Intelligence OPtics and Electro Nics (iOPEN) Northwestern Polytechnical University

Why do humans punish free riders at their own expense? This behavior represents an evolutionary puzzle in human societies. This study explores the role of exit strategies in fostering altruistic punishment within evolutionary game theory. We extend the traditional prisoner's dilemma model by incorporating exiters, players who opt out for a small payoff while nullifying their opponent's payoff, and altruistic punishers who cooperate and punish non-cooperators. Our findings indicate that in well-mixed populations, exiters destabilize defection but do not promote altruistic punishment. In social networks, however,exiters enable altruistic punishment via cyclic dominance among altruistic punishers, defectors, and exiters. Notably, this cyclic dominance is sensitive to exit payoffs; adjustments can lead to cyclic dominance of non-punishing cooperators, defectors, and exiters, or to a bi-stable state between these two types of cyclic dominance. These results highlight the nuanced impact of exiters on altruistic punishment, emphasizing the need for careful incentivization of exit behavior. While exiters can support altruistic punishment in networked populations, their effectiveness is not a panacea and is highly sensitive to exit payoffs, indicating limits to the voluntary participation mechanism.

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Chandra Studies of the X-ray gas properties of fossil systems

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Research in Astronomy and Astrophysics 2016年第3期16卷 129-138页

作者： zhen-zhen Qin School of Science Southwest University of Science and Technology

We study ten galaxy groups and clusters suggested in the literature to be ＂fossil systems（FSs）＂based on Chandra observations. According to the M（500）- T and LX- T relations, the gas properties of FSs are not physically distinct from ordinary galaxy groups or clusters. We also first study the f（gas, 2500）- T relation and find that the FSs exhibit the same trend as ordinary systems. The gas densities of FSs within 0.1r200 are - 10^-3cm^-3, which is the same order of magnitude as galaxy clusters. The entropies within 0.1r200（S（0.1r200）） of FSs are systematically lower than those in ordinary galaxy groups, which is consistent with previous reports, but we find their S（0.1r200）- T relation is more similar to galaxy clusters. The derived mass profiles of FSs are consistent with the Navarro, Frenk and White model in（0.1- 1）（r200）, and the relation between scale radius rs and characteristic mass density δc indicates self-similarity of dark matter halos of FSs. The ranges of rs and δc for FSs are also close to those of galaxy clusters. Therefore, FSs share more common characteristics with galaxy clusters. The special birth place of the FS makes it a distinct type of galaxy system.

关键词： galaxies: cluster: general -- galaxies: evolution -- galaxies: halos -- intergalactic medium --X-ray: galaxies: clusters