检索结果-南通市图书馆

multi-scale climate variations and mechanisms of the onset and withdrawal of the south China sea summer monsoon

在线全文

学校读者我要写书评

暂无评论

science China Earth sciences 2022年第6期65卷 1030-1046页

作者： Wen CHEN Peng hu Jingliang huANGFU Center for monsoon system Research Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100190China College of Earth and Planetary sciences University of Chinese Academy of SciencesBeijing 100049China

The onset of the south China sea summer monsoon(sCssm) heralds the establishment of the large-scale East Asian summer monsoon and the western North Pacific summer monsoon, as well as the beginning of the major rainy season. The occurrence of an early or late sCssm onset is an important indicator for the summertime climate anomalies over East and southeast Asia. Therefore, the onset of the sCssm has received extensive research attention, and has been one of the key foci of monsoon research in recent decades. This paper reviews the multi-scale climate variations(from interdecadal to synoptic scales)and mechanisms of the sCssm onset, with special attention paid to the progress in the past five years. On the interdecadal timescale, the sCssm onset underwent a significant advancement in the mid-to-late 1990s, which may have been related to the background condition of the Pacific Ocean. On the interannual timescale, El Ni?o-southern Oscillation(ENsO) is considered to be the most critical factor controlling the variability of the sCssm onset. However, the linkage between ENsO and the sCssm onset has become much weaker and insignificant in recent years. The intraseasonal oscillations(including the 30–60-day oscillation and quasi-biweekly oscillation) are important modulators of the sCssm onset. The transition from an inactive phase to an active phase may be more worthy of attention than the phase itself. There appear to be close interactions between the sCssm onset and synoptic-scale systems like tropical cyclones(TCs). TCs are important triggers for the sCssm onset, while in return the sCssm onset provides a favorable background condition for the formation and development of TCs. In addition, this paper also reviews a series of recent works on the withdrawal of the sCssm. Finally, to close the paper, some important scientific issues worthy of further investigation are put forward.

关键词： south China sea summer monsoon onset multi-scale variations El Ni?o-southern Oscillation Intraseasonal oscillation Tropical cyclone

Neural network-based fault diagnosis for spacecraft with single-gimbal control moment gyros

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2022年第7期35卷 261-273页

作者： Yuandong LI Qinglei hu Xiaodong sHAO school of Automation science and Electrical Engineering Beihang UniversityBeijing 100083China Beihang Hangzhou Innovation Institute Yuhang Hangzhou 310023China school of Aeronautic science and Engineering Beihang UniversityBeijing 100083China

This paper proposes a neural network-based fault diagnosis scheme to address the problem of fault isolation and estimation for the single-Gimbal Control moment Gyroscopes(sGCmGs)of spacecraft in a periodic *** this end,a disturbance observer based on neural network is developed for active anti-disturbance,so as to improve the accuracy of fault *** periodic disturbance on orbit can be decoupled with fault by resorting to the fitting and memory ability of neural ***,the fault diagnosis scheme is established based on the idea of information *** data of spacecraft attitude and gimbals position are combined to implement fault isolation and estimation based on adaptive estimator and neural ***,an adaptive sliding mode controller incorporating the disturbance and fault estimation results is designed to achieve active fault-tolerant *** addition,the paper gives the proof of the stability of the proposed schemes,and the simulation results show that the proposed scheme achieves better diagnosis and control results than compared algorithm.

关键词： Control moment gyro Fault diagnosis Fault-tolerant control Neural networks spacecraft attitude control

Long-term outcomes after endoscopic removal of malignant colorectal polyps:Results from a 10-year cohort

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Endoscopy 2024年第4期16卷 193-205页

作者： Anna Fábián Renáta Bor Béla Vasas mónika szűcs Tibor Tóth Zsófia Bősze Kata Judit szántó Péter Bacsur Anita Bálint Bernadett Farkas Klaudia Farkas Ágnes milassin mariann Rutka Tamás Resál Tamás molnár Zoltán szepes Department of Internal medicine University of SzegedSzent-Györgyi Albert Medical SchoolSzeged 6725Hungary Department of Pathology University of SzegedSzent-Györgyi Albert Medical SchoolSzeged 6725Hungary Department of medical Physics and medical Informatics University of SzegedSzent-Györgyi Albert Medical SchoolSzeged 6720Hungary UsZ Translational Colorectal Research Group Hungarian Centre of Excellence for Molecular MedicineSzeged 6725Hungary

BACKGROUND Choosing an optimal post-polypectomy management strategy of malignant colorectal polyps is challenging,and evidence regarding a surveillance-only strategy is *** To evaluate long-term outcomes after endoscopic removal of malignant colorectal *** A single-center retrospective cohort study was conducted to evaluate outcomes after endoscopic removal of malignant colorectal polyps between 2010 and *** disease rate and nodal metastases after secondary surgery and local and distant recurrence rate for those with at least 1 year of follow-up were *** rates for categorical variables and means for continuous variables with 95%confidence intervals were calculated,and Fisher’s exact test and mann-Whitney test were *** risk factors of adverse outcomes were REsULTs In total,135 lesions(mean size:22.1 mm;location:42%rectal)from 129 patients(mean age:67.7 years;56%male)were *** proportion of pedunculated and non-pedunculated lesions was similar,with en bloc resection in 82%and 47%of lesions,*** differentiation,distance from resection margins,depth of submucosal invasion,lymphovascular invasion,and budding were reported at 89.6%,45.2%,58.5%,31.9%,and 25.2%,*** tumor was found in 10 patients,and nodal metastasis was found in 4 of 41 patients who underwent secondary surgical *** analysis identified piecemeal resection as a risk factor for residual malignancy(odds ratio:1.74;P=0.042).At least 1 year of follow-up was available for 117 lesions from 111 patients(mean follow-up period:5.59 years).Overall,54%,30%,30%,11%,and 16%of patients presented at the 1-year,3-year,5-year,7-year,and 9-10-year surveillance *** outcomes occurred in 9.0%(local recurrence and dissemination in 4 patients and 9 patients,respectively),with no difference between patients undergoing secondary surgery and surveillance *** Reporting of histological featur

关键词： malignant colorectal polyps T1 tumor Endoscopic removal Outcomes Long-term surveillance

治疗性游戏结合精细化护理在日间小儿口腔龋齿手术患儿中的应用

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

川北医学院学报 2024年第10期39卷 1437-1440页

作者：胡筱蕾陈婷南京医科大学附属儿童医院209B病区日间手术中心江苏南京210000

目的:探讨治疗性游戏结合精细化护理在日间小儿口腔龋齿手术患儿中的应用效果。方法:选取142例龋齿患儿为研究对象,按照护理方式的不同分为干预组(n=71,实施精细化护理+治疗性游戏干预)和对照组(n=71,实施精细化护理干预)。对比两组患... 详细信息

目的:探讨治疗性游戏结合精细化护理在日间小儿口腔龋齿手术患儿中的应用效果。方法:选取142例龋齿患儿为研究对象,按照护理方式的不同分为干预组(n=71,实施精细化护理+治疗性游戏干预)和对照组(n=71,实施精细化护理干预)。对比两组患儿手术时间、术前畏惧及焦虑情况,手术配合度、疼痛程度及手术并发症发生情况。结果:干预组患儿手术时间短于对照组(P0.05)。结论:在日间小儿口腔龋齿手术患儿中应用治疗性游戏结合精细化护理进行干预,可有效缓解患儿术前畏惧、焦虑情绪,减轻疼痛程度,进而提高配合程度缩短手术时间,有利于减少手术并发症发生。

关键词：治疗性游戏精细化护理日间手术小儿口腔龋齿手术

维普期刊数据库博看期刊

三维定量冠脉造影联合血清神经肽Y、s1P在冠状动脉临界病变评估中的应用价值

在线全文

学校读者我要写书评

暂无评论

临床和实验医学杂志 2024年第17期23卷 1880-1883页

作者：占传家胡彦洪湖市中医医院影像科湖北洪湖433200

目的探索三维定量冠脉造影(3D QCA)联合血清神经肽Y(神经肽Y)、1-磷酸鞘氨醇(s1P)在冠状动脉临界病变评估中的应用价值。方法选取在2022年1月至2024年3月洪湖市中医医院收治的225例冠状动脉病变患者基本资料进行回顾性分析。根据血管... 详细信息

目的探索三维定量冠脉造影(3D QCA)联合血清神经肽Y(神经肽Y)、1-磷酸鞘氨醇(s1P)在冠状动脉临界病变评估中的应用价值。方法选取在2022年1月至2024年3月洪湖市中医医院收治的225例冠状动脉病变患者基本资料进行回顾性分析。根据血管病变狭窄程度分为两组,即观察组(冠状动脉临界病变,病变血管狭窄程度50%~70%,n=112)、对照组(病变血管狭窄程度s1P检测Gensini评分评估,对比两组面积狭窄程度、血管病变长度、直径狭窄程度、神经肽Y、s1P水平及Gensini评分;经Pearson法分析Gensini评分与3D QCA参数及血清指标的相关性;经受试者操作特征(ROC)曲线分析各项指标诊断效能。结果观察组面积狭窄程度、血管病变长度、直径狭窄程度、神经肽Y、s1P、Gensini评分分别为(78.95±10.65)%、(28.45±15.65) mm、(61.68±8.23)%、(211.65±39.71) ng/L、(324.65±58.95) nmol/L、(65.65±12.32)分,均高于对照组[(62.28±7.36)%、(17.41±12.33) mm、(46.31±9.98)%、(165.42±37.55) ng/L、(265.65±57.49) nmol/L、(48.79±10.33)分],差异均有统计学意义(Pson法分析,冠脉临界病变患者面积狭窄程度、血管病变长度、直径狭窄程度、神经肽Y、s1P与Gensini评分均呈正相关(r=0.307、0.260、0.313、0.645、0.544,Ps1P及联合诊断冠状动脉临界病变的AUC分别为0.850、0.704、0.854、0.791、0.745、0.926。结论神经肽Y、s1P水平联合三维定量冠脉造影能够准确诊断冠状动脉临界病变,具有较高效能。

关键词：三维定量冠脉造影神经肽Y 1-磷酸鞘氨醇冠状动脉临界病变评估

无法言说之创意性戏剧言说——福瑟戏剧的当代人生体验与话语表征研究

在线全文

学校读者我要写书评

暂无评论

西安外国语大学学报 2024年第2期32卷 120-124页

作者：张立峰綦天柱胡铁生黑龙江外国语学院西语系黑龙江外国语学院多语种翻译与国际传播研究中心长春师范大学外国语学院长春师范大学翻译研究所吉林大学公共外语教育学院

西方当代戏剧文学名家约恩·福瑟在模仿其前辈易卜生及其同辈汉德克等剧作家的戏剧创作基础上,进一步发展了戏剧留白和悖论式话语的戏剧文学叙事策略,构建起独具特色的当代戏剧文学话语表征方式,将当代西方人难以言说的情感世界以及人... 详细信息

西方当代戏剧文学名家约恩·福瑟在模仿其前辈易卜生及其同辈汉德克等剧作家的戏剧创作基础上,进一步发展了戏剧留白和悖论式话语的戏剧文学叙事策略,构建起独具特色的当代戏剧文学话语表征方式,将当代西方人难以言说的情感世界以及人之生存的个体体验再现出来,形成了西方戏剧文学的一次当代蜕变。福瑟因其“为无法言说的事物而发声的创意性戏剧和散文”而获得诺贝尔文学奖,进而为人们了解当代西方社会人际关系新形态以及形成全新的艺术张力开创了戏剧文学的一代新风。

关键词：约恩·福瑟比较研究戏剧话语模仿与再现情感与人生体验创意性表征

在线全文

学校读者我要写书评

暂无评论

基于移动模架的钢板护面闸室墙整体施工技术

中国水运 2024年第8期 115-118页

作者：胡星梅张伟安徽水安建设集团股份有限公司安徽合肥230601

以淮河航道临淮岗复线船闸工程为依托,通过整体制作“护面钢板+钢桁架”组合模板、临土侧定型整体大模板、端部止水定型整体大模板等三大模板系统,在施工过程中采用带有人行通道的移动模架与吊车控制方法实现整体吊装,最终达到了增加刚... 详细信息

以淮河航道临淮岗复线船闸工程为依托,通过整体制作“护面钢板+钢桁架”组合模板、临土侧定型整体大模板、端部止水定型整体大模板等三大模板系统,在施工过程中采用带有人行通道的移动模架与吊车控制方法实现整体吊装,最终达到了增加刚度、减少变形、降低安全风险和提高施工效率等目的。

关键词：移动模架钢板护面钢桁架闸室

在线全文

学校读者我要写书评

暂无评论

市区交通路口复杂基坑设计的实例分析

工程建设与设计 2024年第13期 55-57页

作者：杨睿胡坚尉上海市政工程设计研究总院(集团)有限公司上海200092

某基坑工程位于上海繁华地段路口,四周受到各类条件的制约,为了保持交通顺畅和减小对周边已有建筑的影响,该基坑较好地利用了工程自身条件和周边环境,从时间、空间等多个角度统筹基坑设计,合理利用各类基坑施工工艺,巧妙安排施工进程,... 详细信息

某基坑工程位于上海繁华地段路口,四周受到各类条件的制约,为了保持交通顺畅和减小对周边已有建筑的影响,该基坑较好地利用了工程自身条件和周边环境,从时间、空间等多个角度统筹基坑设计,合理利用各类基坑施工工艺,巧妙安排施工进程,最终很好地解决了诸多疑难问题,起到优化设计、节约成本和保护环境的作用。

关键词：基坑抗浮分区管线临排

维普期刊数据库博看期刊

超声引导经皮肝穿刺置管引流治疗细菌性肝脓肿的临床分析

在线全文

学校读者我要写书评

暂无评论

中国实用医药 2024年第7期19卷 57-60页

作者：张得峰胡炜团风县人民医院超声影像科 438000 团风县人民医院普外科 438000

目的探讨超声引导经皮肝穿刺置管引流治疗细菌性肝脓肿的临床疗效与安全性。方法选取62例细菌性肝脓肿患者,采用随机数字表法分为试验组(采用超声引导经皮肝穿刺置管引流治疗,31例)和对照组(采用腹腔镜手术切开引流治疗,31例)。比较两... 详细信息

目的探讨超声引导经皮肝穿刺置管引流治疗细菌性肝脓肿的临床疗效与安全性。方法选取62例细菌性肝脓肿患者,采用随机数字表法分为试验组(采用超声引导经皮肝穿刺置管引流治疗,31例)和对照组(采用腹腔镜手术切开引流治疗,31例)。比较两组治疗成功率与临床疗效,基本治疗指标,手术相关并发症发生情况。结果两组均顺利完成治疗,试验组无借助其他方式定位或中转手术者,对照组无中转开腹脓肿切开引流术者,治疗成功率均为100.00%。试验组治愈率70.97%、治疗总有效率100.00%与对照组的77.42%、100.00%比较差异无统计学意义(P>0.05)。试验组置管时间(45.36±6.25)min短于对照组的(91.70±8.92)min,治疗费用(1.43±0.37)万元少于对照组的(2.26±0.54)万元,术后住院时间(18.22±4.75)d长于对照组的(13.36±4.49)d,差异有统计学意义(P0.05)。试验组手术相关并发症发生率16.13%与对照组的6.45%比较差异无统计学意义(P>0.05)。结论以超声引导经皮肝穿刺置管引流治疗细菌性肝脓肿的临床疗效和安全性与腹腔镜手术切开引流基本相当,不过前者在置管操作时间与治疗费用方面更具优势,临床可根据患者实际情况优先考虑使用,但依旧无法完全代替手术治疗。

关键词：细菌性肝脓肿超声引导肝穿刺置管引流疗效安全性