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楚先祖季连年代辨析兼谈楚传说世系的形成

中国史研究 2024年第2期 5-19页

作者：蒋伟男安徽大学汉字发展与应用研究中心 “古文字与中华文明传承发展工程”协同攻关创新平台

据安徽大学藏战国楚简记载,楚传说世系自颛项经老童、祝融(黎)、季连(穴熊)至熊丽,中间并无“弗能纪其世”的缺环。季连为楚传说先祖,活动年代尚难深究,《楚世家》受《帝系》等文献影响将其定为五帝时代人物。季连、穴熊为一人,是春秋... 详细信息

据安徽大学藏战国楚简记载,楚传说世系自颛项经老童、祝融(黎)、季连(穴熊)至熊丽,中间并无“弗能纪其世”的缺环。季连为楚传说先祖,活动年代尚难深究,《楚世家》受《帝系》等文献影响将其定为五帝时代人物。季连、穴熊为一人,是春秋晚期楚人对传说先祖与穴熊、熊丽以来的真实世系进行整合加工的体现,不应视作实录。楚人以颜项为先祖,当如学者所论,是春秋时期楚人出于政治上的需要而主动靠拢的结果。

关键词：季连楚世系安大简《楚居》古史传说

新时间地理学方法支撑下县城居民的日常活动路径与地方秩序建构——以安徽省Q县为例

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城市发展研究 2024年第2期31卷 131-140页

作者：操小晋周维楠南华大学松霖建筑与设计艺术学院扬州大学建筑科学与工程学院

县城在我国城镇化下半场的现阶段扮演重要角色，以安徽省Q县为例，在新时间地理学方法支撑下，从家庭企划视角探究县城居民的日常活动路径与地方秩序建构，旨在为人本主义的县域城镇化发展提供借鉴。研究表明：(1)个体行为嵌于家庭的微... 详细信息

县城在我国城镇化下半场的现阶段扮演重要角色，以安徽省Q县为例，在新时间地理学方法支撑下，从家庭企划视角探究县城居民的日常活动路径与地方秩序建构，旨在为人本主义的县域城镇化发展提供借鉴。研究表明：(1)个体行为嵌于家庭的微观情境，社区是家庭企划实现的主要场景，家庭成员通过内部互动弱化外部制约，以拓展从住区到连接多个社区生活圈的活动空间范围；(2)家庭结构类型的多样化本质是采用同城多地居住、城乡异地周期流动、性别分工、代际支持等方式，应对家庭成员职住学的需求平衡问题；(3)家庭地方秩序的建构差异主要受家庭生命历程阶段、代际间支持程度、内部分工协作和资源能动性获得四种动力驱使，呈现流动性与周期性的综合特征。

关键词：县域城镇化新时间地理学家庭企划地方秩序日常活动路径

碳化硅沥青胶浆自愈合行为研究及最佳掺量的确定

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材料导报 2024年第14期38卷 93-104页

作者：赵华唐杰刘伟男南昌大学工程建设学院南昌330031 江西省交通科学研究院有限公司南昌330052 哈尔滨工业大学交通科学与工程学院哈尔滨150090

自愈合技术在延长沥青路面使用寿命方面有着巨大优势。明晰沥青材料的自愈合行为发展和提升其自愈合性能是将它应用于实际工程的前提。微波加热是加速具有吸波性的沥青材料微裂纹愈合的有效方法,本工作以碳化硅为吸波剂制备粉胶比为0.9... 详细信息

自愈合技术在延长沥青路面使用寿命方面有着巨大优势。明晰沥青材料的自愈合行为发展和提升其自愈合性能是将它应用于实际工程的前提。微波加热是加速具有吸波性的沥青材料微裂纹愈合的有效方法,本工作以碳化硅为吸波剂制备粉胶比为0.9的自愈合沥青胶浆,提升沥青胶浆的吸波性能和路用性能,通过微观观察分析碳化硅掺入对沥青流变学性能、力学性能和自愈合性能的影响,以及在微波辐照下沥青胶浆的升温情况。结果表明,沥青胶浆的自愈合起始温度、自愈合最佳温度及表面弹性模量都随碳化硅替换比例增大而呈现“双峰曲线”变化,这归因于碳化硅-石灰岩矿粉复合填料的级配变化所形成的不同界面结构使得沥青胶浆的性能发生变化。基于上述性能指标,提出了最佳碳化硅体积替换比例为40%。此外,微波测试也表明最佳替换掺量为40%(体积分数,下同)。综合路用性能及自愈合性能,在粉胶比为0.9的条件下,碳化硅最佳替换掺量为40%,研究结果可为碳化硅吸波沥青材料的开发设计提供理论参考。

关键词：沥青胶浆自愈合碳化硅微波加热微观机理

Controlled synthesis and magnetic properties of Fe_3O_4 walnut spherical particles and octahedral microcrystals

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Science China(Technological Sciences) 2008年第11期51卷 1911-1920页

作者： JIAO Hua1,2 & YANG HeQing1 1 Key Laboratory of Macromolecular Science of shaanxi Province, School of Chemistry and Materials Science, shaanxi Normal University, Xi’an 710062, China 2 Department of Chemistry and Chemical Engineering, weinan Teachers University, Wei nan 714000, China Key Laboratory of Macromolecular Science of shaanxi Province School of Chemistry and Materials Science Shaanxi Normal University Xi’an China Department of Chemistry and Chemical Engineering Weinan Teachers University Wei nan China

Magnetite Fe3O4 walnut spherical particles and octahedral microcrystals were suc- cessfully synthesized from K4 [Fe (CN) 6], K3 [Fe (CN) 6] and NaOH reagents via a simple hydrothermal process. And the uniform morphology of octahedral micro- crystals was obtained in the presence of ethylene glycol. The morphology and structure of products were characterized by powder X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results showed that the Fe3O4 walnut spherical particles and octahedral microcrystals were single crystals with the face-center cubic structure and with size distributions from 2.2 to 8.6 μm and 1.6 to 12.5 μm, respectively. Their magnetic properties were detected by a vibrating sample magnetometer at room temperature. The walnut spherical parti- cles exhibited a ferromagnetic behavior with the coercive force (Hc), saturation magnetization (Ms) and remanent magnetization (Mr) being 150.57 Oe, 97.634 and 12.05 emu/g, respectively. For the octahedral microcrystals they were 75.28 Oe, 101.90 and 6.69 emu/g, respectively. Different sizes of walnut spherical particles were controlled synthesized through adjusting the NaOH concentration. It was found that ethylene glycol molecules have a significant effect on the formation of Fe3O4 octahedra. A possible mechanism was also proposed to account for the growth of these Fe3O4 products

关键词： a hydrothermal route Fe3O4 walnut spherical particles octahedral microcrystals magnetic property

融合图神经网络与多视图学习的社区问答专家推荐方法研究

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现代电子技术 2024年第9期47卷 115-118页

作者：熊玮楠昆明理工大学信息工程与自动化学院云南昆明650500

互联网高速发展背景下,社区问答网站提问者有着更强烈的求知需求,海量数据为提问者识别有效信息带来困难,为提问者推荐更专业的专家用户对问题进行回答显得尤为重要。针对传统社区问答专家推荐方法难以准确计算出提问者提出的目标问题... 详细信息

互联网高速发展背景下,社区问答网站提问者有着更强烈的求知需求,海量数据为提问者识别有效信息带来困难,为提问者推荐更专业的专家用户对问题进行回答显得尤为重要。针对传统社区问答专家推荐方法难以准确计算出提问者提出的目标问题和候选专家之间的相关性等问题,为了提高社区问答网站中专家推荐的效率,构建问题节点关系无向图,利用图神经网络GraphSAGE提取节点的二阶邻居信息,并使用多视图学习方法学习不同视图间的互补信息,最终获取目标问题文本和候选专家历史问题集丰富的向量表示,用来计算出目标问题与候选专家之间的匹配度,进而推荐出最适合回答目标问题的专家用户。实验结果表明,在不同的社区问答专家推荐方法上,文中方法在评价指标MRR、NDCG@10上均取得了更优的推荐效果。

关键词：社区问答专家推荐图神经网络多视图学习推荐系统深度学习模型

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Application Research of PETD Combined with MRI Nerve Root Water Imaging in the Minimally Invasive Treatment of LDH

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International Journal of Clinical Medicine 2024年第4期15卷 167-176页

作者： Guanhua Wang Zhe Shen Jinben Yu Shengjie Xu weinan Xu Bing Xu Xiaoyu Ye Wenzhou Combined Traditional Chinese and Western Medicine Hospital of Zhejiang Chinese Medicine University Wenzhou China The Third Clinical Medical College Zhejiang Chinese Medical University Hangzhou China

Objective: This study aims to evaluate the safety and efficacy of PETD combined with nerve root water imaging of MRI for the treatment of lumbar disc herniation. Methods: A retrospective review was performed on 62 patients with lumbar disc herniation from March 2019 to March 2021. The study included an experimental group of 30 patients and a control group of 32 patients. The experimental group underwent PETD combined with nerve root water imaging of MRI, while the control group received traditional PETD treatment. The visual analogue scoring method (VAS score), and JOA lumbar spine function score before and after surgery were compared between the two groups, and efficacy was assessed and compared using the MacNab score. Results: The mean operation time was significantly reduced in the experimental group (56.43 ±10.40 minutes) compared to the control group (65.69 ±14.12 minutes). The VAS score was compared between the two groups with preoperative (p = 0.624), one month after surgery (p = 0.325), three months after surgery (p = 0.676), one year after surgery (p = 0.341);The JOA score was compared between the two groups with preoperative (p = 0.961), one month after the surgery (p = 0.266), three months after surgery (p = 0.185), one year after surgery (p = 0.870), they were no significant statistical difference;The efficacy evaluation of the last follow-up Macnab showed that all the 30 patients in the experimental group were excellent, 31 of 32 patients in the control group were excellent, 1 case was good;There was no statistical difference in the comparison between the two groups (p > 0.05). Conclusion: The study concludes that the combined approach of PETD with nerve root water imaging of MRI is a safe, effective, and more efficient alternative to conventional PETD for treating lumbar disc herniation.

关键词： Lumbar Disc Herniation Nerve Root Water Imaging Percutaneous Interforaminal Endoscopy Minimally Invasive Spine Surgery Discectomy

Recent advances in photothermal effects for hydrogen evolution

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Chinese Chemical Letters 2024年第1期35卷 129-139页

作者： Pengcheng Fan Yuhao He Junan Pan Ning Sun Qiyu Zhang Chen Gu Kang Chen weinan Yin Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China

Photothermal effect has been widely employed in the H2 evolution process at the advantage of using clean energy sources to produce another one of higher *** solar-to-heat conversion have various forms and heat can facilitate reactions in a variety of ***,summarizing the sources and destinations of heat is important for constructing hydrogen production systems of higher *** view mainly focuses on the recent state-of-art progress of hydrogen evolution reaction(HER)based on photothermal ***,we introduce the main pathways of photothermal conversions applied in H2 ***,the functions of the photothermal effect are clearly ***,we go beyond the catalytic reaction and introduce a method to improve the catalytic system by changing the catalytic bulk phase through thermal *** the end,we sort out the challenges and outlook to offer some noble insights for this promising area.

关键词： Photothermal effect H_(2)evolution reaction Photothermal catalysis Water vapor splitting Environmental restoration

低管径比固定床反应器床层特性及流动传热模拟

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过程工程学报 2024年第6期24卷 692-704页

作者：莫畏难苏有勇朱冬冬昆明理工大学现代农业工程学院云南昆明650500

管式固定床常用于高温催化裂解工艺,探究低管径比固定床结构特性和高温下流动传热规律,可以为优化固定床高温催化裂解工艺提供参考。针对粒子解析法中离散元DEM方法对颗粒描述不准确和网格划分困难的问题,采用基于刚体动力学的blender... 详细信息

管式固定床常用于高温催化裂解工艺,探究低管径比固定床结构特性和高温下流动传热规律,可以为优化固定床高温催化裂解工艺提供参考。针对粒子解析法中离散元DEM方法对颗粒描述不准确和网格划分困难的问题,采用基于刚体动力学的blender生成床层堆积模型,并提出了新的接触点处理方法。该方法不改变颗粒和床层形状参数,适用于各种形状颗粒,减小了模型接触处理难度。生成了三种反应管内径与柱状颗粒的等比表面积球当量直径之比(管径比D/d_(p))的圆柱状颗粒床层和一种球状颗粒床层,探究了管径比和颗粒形状对床层结构和流动传热特性的影响。结果表明,床层总体空隙率随着管径比增大而减小,颗粒堆积呈圈层分布,径向空隙率和轴向平均速度的径向分布曲线高度一致,压降与Eisfeld修正式基本吻合。此外,床层流场分布与床层结构高度相关,流道空隙的大小会直接影响沟流现象的产生,进一步影响其温度场分布和传热。球状颗粒床层有更均匀的温度场分布,但传热弱于圆柱状颗粒床层。

关键词：固定床反应器接触点处理方法压降流动传热数值模拟

Strategies to accelerate bubble detachment for efficient hydrogen evolution

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Chinese Chemical Letters 2024年第1期35卷 196-207页

作者： weinan Yin Lexing Yuan Hao Huang Yuntao Cai Junan Pan Ning Sun Qiyu Zhang Qianhe Shu Chen Gu Zechao Zhuang Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China Department of Chemistry Tsinghua UniversityBeijing 100084China

In the process of electrocatalytic water splitting, the management of gaseous products is an important task. Timely detachment of gaseous products from the electrode surface and the electrolyte is beneficial to the reduction of energy consumption of the electrolytic cell. In the existing industrial electrolytic cells, the circulating pump drives the electrolyte flowing to discharge the gaseous products. Up to now, several much more advanced strategies have been explored to deal with the negative effects of bubbles. In this review, we summarized various strategies for bubble detachment, including electrode design, external field imposing and system upgrading. We also elaborated the principle, functional features, practicability, advantages and limitations of each method. Finally, challenges and perspectives are also provided for the further development of advanced bubbles detachment strategies for efficient hydrogen evolution.

关键词： Bubble effect Electrocatalytic water splitting Electrode design External field System upgrade