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Computers, Materials & Continua 2018年第4期55卷 137-150页

作者： Donghui Li Guozheng Zhang zeng xu Yong Lan Yongdong Shi Zhiyao Liang Haiwen Chen Hunan Agricultural University Changsha410128People’s Republic of China(PRC) Macao University of Science and Technology MacaoPeople’s Republic of China(PRC) National University of Defense Technology Changsha410073People’s Republic of China(PRC)

Live streaming is a booming industry in China,involving an increasing number of Internet *** studies show that trust is a cornerstone to develop *** in the streaming industry is different from that of other e-commerce *** are two major dimensions of trust in the live streaming context:platform trust and cewebrity trust,which are both important for customers to adopt and reuse a specific live streaming *** collected questionnaire data from 520 participates who have used live streaming services in *** model the collected data and identified factors that can influence users’propensity by an extended technology acceptance model(TAM)*** to our analysis,both cewebrity trust and platform trust will greatly influence users’intention to reuse a certain ***,results also indicate that cewebrity trust is far more important than platform *** findings can lead to several management strategies to improve the adherence of users to streaming platforms.

关键词： Live streaming extended TAM approach consumers’propensity cewebrity trust platform trust

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堆石混凝土重力坝全过程温度监测分析

水利与建筑工程学报 2024年第1期22卷 90-100页

作者：娄诗建成克雄张文胜曾旭遵义市水利水电勘测设计研究院有限责任公司贵州遵义563002

为充分发挥堆石混凝土重力坝低水泥用量、施工干扰小等优势,并验证其可行性,依托贵州省石坝河水库堆石混凝土重力坝,通过加大横缝间距、大仓面浇筑施工,基于工程设计资料、施工工艺及全过程温度监测成果,对大坝筑坝材料热力学性能进行... 详细信息

为充分发挥堆石混凝土重力坝低水泥用量、施工干扰小等优势,并验证其可行性,依托贵州省石坝河水库堆石混凝土重力坝,通过加大横缝间距、大仓面浇筑施工,基于工程设计资料、施工工艺及全过程温度监测成果,对大坝筑坝材料热力学性能进行分析、大坝施工期工作性态仿真计算,并评估大坝结构整体安全性。分析结果表明:通过初期蓄水运行情况反馈及安全监测,大坝防渗、整体安全可以得到保障,表明堆石混凝土大仓面浇筑方式是可行的。堆石混凝土大仓面整体浇筑方式,对减小施工干扰、加快施工进度、降低水化热温升等有利,同时经济效益显著,可为类似工程建设提供参考。

关键词：堆石混凝土分缝大仓面浇筑温度监测仿真分析

豆渣混合青贮饲料对生态土鸡生长性能和肉品质的影响

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现代畜牧科技 2024年第5期 60-62页

作者：曾旭谢大识周凌博王先坤娄底职业技术学院湖南娄底417000

为分析豆渣混合青贮饲料对生态土鸡生长性能和肉品质的影响,选择湖南省娄底市某养鸡场的60只生态土鸡作为试验对象,随机分为对照组和试验组,每组设置5个重复,每个重复6只土鸡,比较分析豆渣混合青贮饲料对生态土鸡生长性能和肉品质的影... 详细信息

为分析豆渣混合青贮饲料对生态土鸡生长性能和肉品质的影响,选择湖南省娄底市某养鸡场的60只生态土鸡作为试验对象,随机分为对照组和试验组,每组设置5个重复,每个重复6只土鸡,比较分析豆渣混合青贮饲料对生态土鸡生长性能和肉品质的影响差异显著性。豆渣混合青贮饲料试验组生态土鸡的平均日增重显著高于对照组(P0.05);豆渣混合青贮饲料试验组生态土鸡的屠宰率、剪切力、系水力指标均显著高于对照组(P0.05)。豆渣混合青贮饲料能够显著提高生态土鸡生长性能和肉品质,这为本地区生态土鸡健康养殖的饲料营养选择与搭配提供了参考依据。

关键词：豆渣混合青贮饲料生长性能肉品质

Printed Biosensors for the Detection of Alzheimer’s Disease Based on Blood Biomarkers

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Journal of Analysis and Testing 2024年第2期8卷 133-142页

作者： Yu zeng Zhen Huang Yibiao Liu Tailin xu Longgang Central Hospital of Shenzhen Shenzhen518116China School of Biomedical Engineering Shenzhen UniversityShenzhen518060China

Alzheimer’s disease(AD)is a chronic neurodegenerative disorder,and early diagnosis plays a crucial role in its prevention and *** recent years,blood-based biomarkers for early AD diagnosis have gained attention due to their non-invasiveness and minimal adverse reactions,which make them an attractive *** the onset of the COVID-19 pandemic,visiting large medical examination centers for blood tests has become increasingly *** trend is shifting towards community or home-based sampling,which relies on the development and application of portable,miniaturized,and highly sensitive *** the various sensors used for detecting blood biomarkers in AD,printed sensors demonstrate great potential in AD blood biomarker detection due to their ease of miniaturization,scalability for mass production,and compatibility with various detection *** this review,we focus on discussing the application of printed sensors in the analysis of blood biomarkers for *** also explore the challenges faced by printed sensors in early diagnosis based on AD blood biomarkers and propose potential solutions to address these challenges.

关键词： Printed biosensors Alzheimer’s disease Blood biomarkers Printing technology

胶膜菌属真菌S7糖类成分对铁皮石斛种子萌发的影响

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中国药学杂志 2024年第7期59卷 579-588页

作者：陈彤垚陈晓梅杨建文李媛媛邱先丹王爱荣曾旭郭顺星中国医学科学院北京协和医学院药用植物研究所教育部中草药物质基础与资源利用重点实验室北京100193

目的研究胶膜菌属真菌S7(Tulasnella sp.)糖类成分对铁皮石斛种子萌发的影响。方法通过水提醇沉法制备S7菌丝多糖和发酵液多糖。三氟乙酸水解制备菌丝多糖和发酵液多糖的水解物。利用柱前衍生高效液相色谱法(PMP-HPLC)测定多糖的单糖组... 详细信息

目的研究胶膜菌属真菌S7(Tulasnella sp.)糖类成分对铁皮石斛种子萌发的影响。方法通过水提醇沉法制备S7菌丝多糖和发酵液多糖。三氟乙酸水解制备菌丝多糖和发酵液多糖的水解物。利用柱前衍生高效液相色谱法(PMP-HPLC)测定多糖的单糖组成。在水琼脂和1/2 MS培养基中分别添加菌丝多糖及其水解物,发酵液多糖及其水解物,以及菌丝多糖特有单糖组分和混合单糖组分,研究S7糖类成分对铁皮石斛种子萌发的影响。结果水琼脂培养基对照组(WACK1)萌发率(88.65±4.71)%,种子能萌发至3级(原球茎)。与WACK1相比,添加菌丝多糖及其水解物对萌发率没有显著影响(P>0.05),但种子能萌发至4级(1片叶);添加发酵液多糖水解物能显著降低萌发率(P0.05),但5级萌发率有显著提高(P<0.05),是MSCK的1.36~1.47倍。结论S7菌丝体多糖及其水解物具有促进铁皮石斛原球茎发育的作用,岩藻糖是S7菌丝多糖水解物中促进种子萌发后进一步分化发育的活性成分。

关键词：铁皮石斛胶膜菌属菌丝多糖岩藻糖种子萌发

Low-Rank Optimal Transport for Robust Domain Adaptation

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1667-1680页

作者： Bingrong xu Jianhua Yin Cheng Lian Yixin Su Zhigang zeng IEEE the School of Automation Wuhan University of TechnologyWuhan 430070China Intelligent Transportation Systems Research Center Wuhan University of TechnologyWuhan 430063 Chongqing Research Institute Wuhan University of TechnologyChongqingChina the School of Artificial Intelligence and Automation Huazhong University of Science and TechnologyWuhan 430074 the Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Wuhan 430074China

When encountering the distribution shift between the source(training) and target(test) domains, domain adaptation attempts to adjust the classifiers to be capable of dealing with different domains. Previous domain adaptation research has achieved a lot of success both in theory and practice under the assumption that all the examples in the source domain are welllabeled and of high quality. However, the methods consistently lose robustness in noisy settings where data from the source domain have corrupted labels or features which is common in reality. Therefore, robust domain adaptation has been introduced to deal with such problems. In this paper, we attempt to solve two interrelated problems with robust domain adaptation:distribution shift across domains and sample noises of the source domain. To disentangle these challenges, an optimal transport approach with low-rank constraints is applied to guide the domain adaptation model training process to avoid noisy information influence. For the domain shift problem, the optimal transport mechanism can learn the joint data representations between the source and target domains using a measurement of discrepancy and preserve the discriminative information. The rank constraint on the transport matrix can help recover the corrupted subspace structures and eliminate the noise to some extent when dealing with corrupted source data. The solution to this relaxed and regularized optimal transport framework is a convex optimization problem that can be solved using the Augmented Lagrange Multiplier method, whose convergence can be mathematically proved. The effectiveness of the proposed method is evaluated through extensive experiments on both synthetic and real-world datasets.

关键词： Domain adaptation low-rank constraint noise corruption optimal transport

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基于知识图谱的建筑信息模型构建方法

建筑技术 2024年第10期55卷 1266-1273页

作者：贺卫兵陶玉菲许曾杰张子璇王佳丽徐照中国核工业华兴建设有限公司南京210000 东南大学土木工程学院南京210000

随着我国城市化建设进程的加快,建筑领域信息化建设的进程也在逐渐加快,当代建筑领域对建筑信息模型(BIM)的价值利用提出了更高的要求,实现BIM技术在建筑工程全生命周期协同管理中的价值最大化是当前建筑业的迫切需求。为了解决现代建... 详细信息

随着我国城市化建设进程的加快,建筑领域信息化建设的进程也在逐渐加快,当代建筑领域对建筑信息模型(BIM)的价值利用提出了更高的要求,实现BIM技术在建筑工程全生命周期协同管理中的价值最大化是当前建筑业的迫切需求。为了解决现代建筑工程涉及多方利益相关者,且施工工序复杂,BIM技术在建筑工程领域的实际应用中还存在着施工信息海量多样、数据信息异构、信息交互性差等问题。本研究设计了基于知识图谱的建筑信息模型构建方法。首先梳理了建筑构件编码体系,并结合IFC标准体系,有效集成了形式多样的建筑知识信息。通过构建BIM共享本体与领域本体,分析建筑的知识框架,构建了建筑知识图谱,最后在装配式建筑的模型视图交付这一应用场景中展现其优势。结果表明,基于知识图谱的建筑信息模型构建方法为模型视图交付提供了新思路,可见其有助于解决BIM模型数据异构问题,有效提高建筑信息的交互性与重用性。

关键词： BIM 知识图谱数据信息异构 IFC

Topological hinge modes in Dirac semimetals

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Frontiers of physics 2023年第1期18卷 85-95页

作者： xu-Tao zeng Ziyu Chen Cong Chen Bin-Bin Liu Xian-Lei Sheng Shengyuan A.Yang School of Physics Beihang UniversityBeijing 100191China Department of Physics The University of Hong KongHong KongChina Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Center for Quantum Transport and Thermal Energy Science School of Physics and TechnologyNanjing Normal UniversityNanjing 210023China

Dirac semimetals(DSMs)are an important class of topological states of ***,focusing on DSMs of band inversion type,we investigate their boundary modes from the effective model *** show that in order to properly capture the boundary modes,k-cubic terms must be included in the effective model,which would drive an evolution of surface degeneracy manifold from a nodal line to a nodal *** k-cubic terms are also needed for better exposing the topological hinge modes in the *** first-principles calculations,we demonstrate that this feature and the topological hinge modes can be clearly exhibited inβ-*** extend the discussion to magnetic DSMs and show that the time-reversal symmetry breaking can gap out the surface bands and hence is beneficial for the experimental detection of hinge ***,we show that magnetic DSMs serve as a parent state for realizing multiple other higher-order topological phases,including higher-order Weyl-point/nodal-line semimetals and higher-order topological insulators.

关键词： topological hinge Dirac semimetals

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中国领蚊属一新种(双翅目:蚊科)

中国媒介生物学及控制杂志 2024年第3期35卷 339-342页

作者：吴林波许翔曾旭灿郭小连董学书云南省寄生虫病防治所云南省热带传染病国际联合实验室云南省虫媒传染病防控研究重点实验室云南省虫媒传染病防控关键技术创新团队云南普洱665000

记述2020年8月采自中国云南省德宏傣族景颇族自治州盈江县铜壁关自然保护区的领蚊属无鬃蚊亚属一新种:盈江领蚊[Heizmannia(Mattinglyia)yingjiangensis ***.]。新种主要鉴别特征:喙一致暗色,中胸盾片密覆淡黄细窄鳞,侧背片具暗黑色鬃毛... 详细信息

记述2020年8月采自中国云南省德宏傣族景颇族自治州盈江县铜壁关自然保护区的领蚊属无鬃蚊亚属一新种:盈江领蚊[Heizmannia(Mattinglyia)yingjiangensis ***.]。新种主要鉴别特征:喙一致暗色,中胸盾片密覆淡黄细窄鳞,侧背片具暗黑色鬃毛,无鳞片分布;中胸后背片有细鳞,腹节背板一致密覆暗蓝色金属光泽宽鳞;雄蚊触须与喙约等长,触角轮毛羽状,雄蚊尾器抱肢端节不膨大,背基内叶发达,其上具2根粗刺状刚毛和5根末端略弯曲的刺状刚毛及若干细鬃毛。模式标本保存于云南省寄生虫病防治所蚊虫标本馆。

关键词：蚊科领蚊属新种盈江领蚊

超高韧性水泥基复合材料力学性能及早期收缩研究

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混凝土 2024年第3期 23-29页

作者：曾旭蒋伟勤冯庆革罗祺田月晖程晓蝶武丽云冯靖航广西大学资源环境与材料学院广西南宁530004 柳州工学院土木建筑工程学院广西柳州545616 重庆交通大学土木工程学院重庆400074 南宁学院土木与建筑工程学院广西南宁530200

研究了水胶比和聚乙烯(PE)纤维掺量对超高韧性水泥基复合材料(UHTCC)抗压和抗折强度、弯曲韧性以及早期收缩性能的影响,并结合扫描电子显微镜(SEM)分析了UHTCC的微观结构。结果表明:随着水胶比的增大,UHTCC抗压和抗折强度均降低,而其弯... 详细信息

研究了水胶比和聚乙烯(PE)纤维掺量对超高韧性水泥基复合材料(UHTCC)抗压和抗折强度、弯曲韧性以及早期收缩性能的影响,并结合扫描电子显微镜(SEM)分析了UHTCC的微观结构。结果表明:随着水胶比的增大,UHTCC抗压和抗折强度均降低,而其弯曲韧性呈先降低后增长的变化趋势;增大PE纤维掺量可以显著提升UHTCC抗折强度和弯曲韧性,但会降低其3 d抗压强度,增大其7 d和28 d抗压强度。在早期收缩性能方面,水胶比增大会降低UHTCC早期自收缩,但其早期干燥收缩有所增大。而UHTCC早期自收缩和干燥收缩均随PE纤维掺量的增大而降低。微观结构分析发现PE纤维掺量增大容易导致纤维团聚;水胶比的增大会降低UHTCC基体的密实度和纤维-基体界面黏结力,不利于UHTCC力学性能的发展。

关键词：超高性能水泥基复合材料水胶比聚乙烯纤维掺量力学性能早期收缩性能微观结构