检索结果-南通市图书馆

Chinese Medical Journal 2024年第7期137卷 871-873页

作者： Zhenfa Hu Kai Su huihui miao Xue Gao Fushan Xue Ming Tian Department of Anesthesiology Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China Department of Anesthesiology Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China

Airway management is closely related to the safety and quality of *** 2015,the Difcult Airway Society suggested that endotracheal intubation should beberoptic bronchoscope(FOB)-guided and blind intubation should be *** supraglottic airway device(SAD)BlockBuster^(TM)with matched tracheal tube(Block-Buster^(TM)tracheal tube,BTT;Tuoren Medical Instrument Co.,Ltd.,Changyuan,Henan,China)is an improved second-generation SAD with intubation function.[1,2]Theberscope-monitored intubation via SAD BlockBuster^(TM)can make the whole process ***,we investigated the feasibility,success rate,and complications of the new intubation technique in a well-positioned SAD BlockBuster^(TM)by sequential case observation.

关键词： intubation airway supra

火花源原子发射光谱法测定3D打印GH3536合金制件中12种元素的含量

在线全文

学校读者我要写书评

暂无评论

理化检验（化学分册） 2024年第5期60卷 481-484页

作者：樊婕苗慧慧曹桂松徐照华何艳丽中国航发商用航空发动机有限责任公司上海200241

3D打印技术具有数字制造、降维制造、直接制造和快速制造等优点^([1]),可快速而精密地制造出复杂形状的零件。GH3536合金是一种添加了钴和钨的镍基高温合金,在高温时表现出良好的耐腐蚀性,特别是在1 200℃高温时具有优秀的抗氧化性能。... 详细信息

3D打印技术具有数字制造、降维制造、直接制造和快速制造等优点^([1]),可快速而精密地制造出复杂形状的零件。GH3536合金是一种添加了钴和钨的镍基高温合金,在高温时表现出良好的耐腐蚀性,特别是在1 200℃高温时具有优秀的抗氧化性能。目前,3D打印GH3536合金制件在燃烧室喷嘴^([2])、喷油杆芯等热端部件上的应用正成为航空发动机研制的重点研究对象。

关键词：火花源原子发射光谱法 3D打印数字制造航空发动机研制耐腐蚀性重点研究对象镍基高温合金热端部件

Multi-Scale Convolutional Gated Recurrent Unit Networks for Tool Wear Prediction in Smart Manufacturing

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2021年第3期34卷 130-145页

作者： Weixin Xu huihui miao Zhibin Zhao Jinxin Liu Chuang Sun Ruqiang Yan School of Mechanical Engineering Xi’an Jiaotong UniversityXi’an 710049China State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China

As an integrated application of modern information technologies and artificial intelligence,Prognostic and Health Management(PHM)is important for machine health *** of tool wear is one of the symbolic applications of PHM technology in modern manufacturing systems and *** this paper,a multi-scale Convolutional Gated Recurrent Unit network(MCGRU)is proposed to address raw sensory data for tool wear *** the bottom of MCGRU,six parallel and independent branches with different kernel sizes are designed to form a multi-scale convolutional neural network,which augments the adaptability to features of different time *** features of different scales extracted from raw data are then fed into a Deep Gated Recurrent Unit network to capture long-term dependencies and learn significant *** the top of the MCGRU,a fully connected layer and a regression layer are built for cutting tool wear *** case studies are performed to verify the capability and effectiveness of the proposed MCGRU network and results show that MCGRU outperforms several state-of-the-art baseline models.

关键词： Tool wear prediction Multi-scale Convolutional neural networks Gated recurrent unit

基于网络药理学探讨调肝活血稳压颗粒治疗高血压病的分子机制

在线全文

学校读者我要写书评

暂无评论

中医药通报 2024年第5期23卷 40-46页

作者：缪慧慧刘中勇唐娜娜徐媛媛王思梦陈抒鹏江西中医药大学江西南昌330000 江西中医药大学附属医院江西南昌330000

目的:基于网络药理学研究方法探讨调肝活血稳压颗粒治疗高血压的潜在作用机制。方法:应用TCMSP、BATMAN-TCM、PubChem、Swiss Target Prediction等数据库筛选调肝活血稳压颗粒核心药物的生物活性成分,并预测其靶点;应用DisGeNET、Geneca... 详细信息

目的:基于网络药理学研究方法探讨调肝活血稳压颗粒治疗高血压的潜在作用机制。方法:应用TCMSP、BATMAN-TCM、PubChem、Swiss Target Prediction等数据库筛选调肝活血稳压颗粒核心药物的生物活性成分,并预测其靶点;应用DisGeNET、Genecards数据库收集高血压相关靶点;利用Venny 2.1软件对调肝活血稳压颗粒核心药物与高血压的靶点进行映射,获得药物-疾病共同靶点,并绘制韦恩图,构建“药物-成分-交集靶点”网络图,筛选获得核心活性成分;运用STRING数据库及Cytoscape 3.9.1软件构建蛋白质相互作用(PPI)网络,筛选获得核心靶点;应用David数据库,进行药物-疾病共有靶点基因本体(GO)功能注释和京都基因与基因组百科全书(KEGG)通路富集分析。结果:预测得到调肝活血稳压颗粒核心药物的重要活性成分57种,对应靶点703个,核心药物-高血压共同靶点238个,GO富集分析结果为生物学过程952个、细胞组成112个、分子功能203个,KEGG富集分析得到信号通路169条。其中,天麻苷元、安枯斯特定碱、4-(氨甲基)苯酚、γ-谷甾醇、槲皮素等活性成分可能是本方治疗高血压的重要活性成分,潜在核心靶点为SRC、EGFR、MAPK3、STAT3、AKT1等,KEGG通路富集分析主要涉及钙离子通道、脂质及动脉粥样硬化、糖尿病并发症中的AGERAGE信号通路、胰岛素抵抗、内分泌抵抗、MAPK信号通路、细胞的分化及凋亡、炎症免疫等多方面机制变化。结论:调肝活血稳压颗粒在高血压治疗中具有多成分-多靶点-多途径的特点与优势,此可作为进一步探讨调肝活血稳压颗粒治疗高血压的药效物质及作用机制的重要研究基础。

关键词：高血压调肝活血稳压颗粒网络药理学分子机制靶点信号通路

基于CiteSpace和VOSviewer的中医外治法治疗失眠的可视化分析

在线全文

学校读者我要写书评

暂无评论

中国民间疗法 2024年第3期32卷 53-57页

作者：徐媛媛唐娜娜陈抒鹏缪慧慧王思梦江西中医药大学江西南昌330004

目的:探索2012—2021年不同中医外治法治疗失眠的研究现状及发展趋势。方法:检索2012—2021年中国知网、万方数据知识服务平台、维普资讯中文期刊服务平台收录的有关中医外治法治疗失眠的相关文献,通过VOSviewer及CiteSpace对作者、期... 详细信息

目的:探索2012—2021年不同中医外治法治疗失眠的研究现状及发展趋势。方法:检索2012—2021年中国知网、万方数据知识服务平台、维普资讯中文期刊服务平台收录的有关中医外治法治疗失眠的相关文献,通过VOSviewer及CiteSpace对作者、期刊、机构及关键词进行可视化分析。结果:共纳入5 592篇文献,2012—2021年发文量稳步上升,2020年发文量最多;9 384位作者参与,其中有254位核心作者,形成了以徐世芬、岳增辉、陈云飞等为代表的研究团队;3 853家机构参与相关研究,发文机构以中医药院校为主,各机构在中医外治法治疗失眠领域中合作不密切;427家期刊发表相关文献。研究热点主要聚焦于外治法,如耳穴压豆、针刺、针灸;失眠相关疾病,如抑郁症、脑卒中、焦虑症;常用腧穴,如耳穴、四神聪、涌泉。研究趋势为不同外治法的联合应用,尤其是在失眠的合并证中具有较大的应用潜能。结论:2012—2021年中医外治法在失眠研究领域发展迅速,当前研究热点集中于外治法的临床应用、经络和腧穴的选择及失眠共病的治疗等,但权威性成果较少,以临床研究为主要形式,基础研究及理论研究相对薄弱。多种外治法的联合应用及对失眠伴随疾病的研究成为新的研究趋势。电针、子午流注针法、推拿等在失眠伴焦虑、抑郁等疾病中的作用突出,是未来探索的方向。

关键词：中医外治法失眠可视化分析 VOSviewer CiteSpace

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

滋阴降火法治疗阴虚火旺型失眠的研究进展

实用中医内科杂志 2024年第8期38卷 12-15页

作者：缪慧慧唐娜娜徐媛媛王思梦陈抒鹏江西中医药大学临床医学院江西南昌330004 江西中医药大学附属医院心血管科江西南昌330006

朱丹溪所著《格致余论》中有观点:“天之阳气为气,地之阴气为血。故气常有余,血常不足”,气属阳而血属阴,故可延伸为“阳常有余,阴常不足”,并提出了滋阴降火的治法。后世诸多医家在诊疗的过程中观察到,诸多长期失眠患者会伴随出现心烦... 详细信息

朱丹溪所著《格致余论》中有观点:“天之阳气为气,地之阴气为血。故气常有余,血常不足”,气属阳而血属阴,故可延伸为“阳常有余,阴常不足”,并提出了滋阴降火的治法。后世诸多医家在诊疗的过程中观察到,诸多长期失眠患者会伴随出现心烦,手足心热,头晕耳鸣,心悸健忘,颧红潮热,口干少津,舌红少苔,脉细数等表现,属阴虚证,如未及时干预,易化生火热,故而常结合朱丹溪之滋阴降火法治疗。在历史前进的过程中,滋阴降火法的运用也在不断的发展。文章对于滋阴降火法治疗阴虚火旺型失眠的研究进展展开综述,归纳治疗滋阴降火法的方药及针刺研究,总结其治疗失眠的独特之处,为中医治疗失眠提供良好的依据。

关键词：失眠阴虚火旺滋阴降火阳有余阴不足相火论

Study on Coded Permutation Entropy of Finite Length Gaussian White Noise Time Series

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第1期33卷 185-194页

作者： huihui SUN Xiaofeng ZHANG School of Physics and Information Technology Shaanxi Normal University

As an extension of permutation entropy(PE), coded permutation entropy(CPE) improves the performance of PE by making a secondary division for ordinal patterns defined in PE. In this study, we provide an exploration of the statistical properties of CPE using a finite length Gaussian white noise time series theoretically. By means of the Taylor series expansion, the approximate expressions of the expected value and variance of CPE are deduced and the Cramér-Rao low bound(CRLB) is obtained to evaluate the performance of the CPE estimator. The results indicate that CPE is a biased estimator, but the bias only depends on relevant parameters of CPE and it can be easily corrected for an arbitrary time series. The variance of CPE is related to the encoding patterns distribution,and the value converges to the CRLB of the CPE estimator when the time series length is large enough. For a finitelength Gaussian white noise time series model, the predicted values can match well with the actual values, which further validates the statistic theory of CPE. Using the theoretical expressions of CPE, it is possible to better understand the behavior of CPE for most of the time series.

关键词： Time series analysis White noise Predictive models Taylor series Entropy Encoding Time measurement

Evaluating quality of motion for unsupervised video object segmentation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2024年第6期20卷 379-384页

作者： CHENG Guanjun SONG huihui Jiangsu Key Laboratory of Big Data Analysis Technology Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment TechnologyNanjing University of Information Science&TechnologyNanjing 210044China12

Current mainstream unsupervised video object segmentation(UVOS) approaches typically incorporate optical flow as motion information to locate the primary objects in coherent video frames. However, they fuse appearance and motion information without evaluating the quality of the optical flow. When poor-quality optical flow is used for the interaction with the appearance information, it introduces significant noise and leads to a decline in overall performance. To alleviate this issue, we first employ a quality evaluation module(QEM) to evaluate the optical flow. Then, we select high-quality optical flow as motion cues to fuse with the appearance information, which can prevent poor-quality optical flow from diverting the network's attention. Moreover, we design an appearance-guided fusion module(AGFM) to better integrate appearance and motion information. Extensive experiments on several widely utilized datasets, including DAVIS-16, FBMS-59, and You Tube-Objects, demonstrate that the proposed method outperforms existing methods.

关键词： Evaluating quality of motion for unsupervised video object segmentation

Simplified design of nonlinear damper parameters and seismic responses for long-span cable-stayed bridges with nonlinear viscous dampers

在线全文

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2024年第7期18卷 1103-1116页

作者： huihui LI Lifeng LI Rui HU Meng YE College of Civil and Transportation Engineering Shenzhen UniversityShenzhen 518060China Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering Shenzhen UniversityShenzhen 518060China College of Civil Engineering Hunan UniversityChangsha 410082China

Viscous dampers are widely used as passive energy dissipation devices for long-span cable-stayed bridges for mitigation of seismic load-induced ***,complicated finite element(FE)modeling,together with repetitive and computationally intensive nonlinear time-history analyses(NTHAs)are generally required in conventional design *** streamline the preliminary design process,this paper developed a simplified longitudinal double degree of freedom model(DDFM)for single and symmetric twin-tower cable-stayed *** on the proposed simplified longitudinal DDFM,the analytical equations for the relevant mass-and stiffness-related parameters and longitudinal natural frequencies of the structure were derived by using analytical and energy *** of the relationship between the nonlinear viscous damper parameters and the equivalent damping ratio was achieved through the equivalent linearization ***,the analytical equations of longitudinal seismic responses for long-span cable-stayed bridges with nonlinear viscous dampers were *** on the developed simplified DDFM and suggested analytical equations,this paper proposed a simplified calculation framework to achieve a simplified design method of nonlinear viscous damper ***,the effectiveness and applicability of the developed simplified longitudinal DDFM and the proposed calculation framework were further validated through numerical analysis of a practical cable-stayed ***,the results indicated the following.1)For the obtained fundamental period and longitudinal stiffness,the differences between results of the simplified longitudinal DDFM and numerical analysis were only 2.05%and 1.5%,respectively.2)Relative calculation errors of the longitudinal girder-end displacement and bending moment of the bottom tower section of the bridge obtained from the simplified longitudinal DDFM were limited to less than 25%.3)The equivalent damping ratio of nonline

关键词： cable-stayed bridges viscous dampers simplified analytical model equivalent damping ratio seismic mitigation

麻醉恢复室的研究热点与趋势:2003-2023年文献计量学分析

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国现代医生 2024年第9期62卷 55-61页

作者：韩阳郭炜刘晓缪慧慧首都医科大学附属北京世纪坛医院麻醉科手术室北京100038

目的量化关于麻醉恢复室(postanesthesia care unit,PACU)学术论文的基本信息,探索辨识关于PACU研究领域的研究趋势、热点及最具有影响力的论文。方法通过在SCI核心合集数据库中检索2003—2023年关于PACU的研究论文,收集并分析计量学基... 详细信息

目的量化关于麻醉恢复室(postanesthesia care unit,PACU)学术论文的基本信息,探索辨识关于PACU研究领域的研究趋势、热点及最具有影响力的论文。方法通过在SCI核心合集数据库中检索2003—2023年关于PACU的研究论文,收集并分析计量学基本信息,包括发表年份、国家、作者、期刊名称、学术机构、研究学科与热点。结果共1541篇文献纳入本研究。发表相关论文最多的国家是美国(n=814),其次是中国(n=146)与加拿大(n=97)。Dexter Franklin是最具影响力的作者,共发表30篇关于PACU研究领域的论文。哈佛大学是最具影响力的学术机构,发表52篇论文,总被引用次数为1338次,平均每篇文章被引次数为25.73次,H指数为20。期刊Anesthesia and Analgesia共刊登232篇论文,数量最多。关于PACU研究领域的热点有“术后疼痛”“全身麻醉”“恢复”“风险因素”和“术后恶心”等。数据显示“加强术后恢复”“疼痛管理”是近二十年的爆发关键词。结论基于文献计量学的研究方法,本研究提供较为全面的关于PACU研究领域发展的分析总结。未来该领域的“加强术后恢复”与“疼痛管理”仍可能是热门研究方向。

关键词：麻醉恢复室文献计量学研究热点研究趋势