检索结果-南通市图书馆

Implementation of gastrointestinal function protection in severe acute pancreatitis

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 521-522页

作者： Fu-Zheng Tao Rong-Lin jiang shui-Fang jin Intensive Care Unit Taizhou Integrated Traditional Chinese and Western Medicine HospitalTaizhou 310075China Intensive Care Unit the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou 310006China

Severe acute pancreatitis(SAP)is a serious systemic disease associated with strong local inflammatory reactions and serious systemic pathophysiological disorders caused by trypsin *** with SAP are prone to exhibit gastrointestinal ***,gastrointestinal dysfunction further aggravates the systemic inflammatory response and metabolic abnormalities,resulting in a more critical condition of *** dysfunction is considered to be the“trigger”of multiple organ dysfunction syndrome[1].Thus,it is important to maintain gastrointestinal homeostasis in the treatment of SAP.

关键词： gastrointestinal pancreatitis acute

Mechanisms of liver injuries caused by traditional Chinese medicines

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2024年第3期23卷 310-312页

作者： shui-Fang jin Qi Pan jin-Peng Zhou Xiao-Ping Pan Intensive Care Unit The First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou 310006China Institute of Liver Diseases College of Basic Medical SciencesZhejiang Chinese Medical UniversityHangzhou 310053China The Second Clinical Medical College of Zhejiang Chinese Medical University Hangzhou 310056China

Drug-induced liver injury(DILI)is a common adverse drug reaction,which can even result in liver failure[1,2].The Chinese Medical Association issued the Guidelines for the Diagnosis and Treatment of DILI based on the Roussel Uclaf Causality Assessment Method(RUCAM)in 2015[3].A previous study reported that traditional Chinese medicines(TCMs),herbal and dietary supplements,and antituberculosis drugs were the main causes of DILI in China[4].Herb-induced liver injury(HILI)refers to liver injury caused by TCMs,natural drugs,and their related preparations[5].

关键词： drugs tuberculosis TCM

在线全文

学校读者我要写书评

暂无评论

轧机主传动系统扭振盲测点测量模型的研究

计量学报 2007年第1期28卷 64-69页

作者：刘彬赵武蒋金水燕山大学信息工程学院河北秦皇岛066004 中国第一重型机械集团公司大连设计研究院辽宁大连116600

为解决轧机主传动系统实际测试中不可测点处物理参数测取的难题,构造了一类连续轴段质量扭振分析模型,并推导出轴段上盲测点处的扭振参数计算公式。通过把实测点的测试数据代入盲测点计算公式,可计算盲测点的振动参数。轧机实际现场扭... 详细信息

为解决轧机主传动系统实际测试中不可测点处物理参数测取的难题,构造了一类连续轴段质量扭振分析模型,并推导出轴段上盲测点处的扭振参数计算公式。通过把实测点的测试数据代入盲测点计算公式,可计算盲测点的振动参数。轧机实际现场扭矩测试和数据分析处理结果验证了理论推导的正确性。这为轧机现场监测中一些不易布置传感器关键点处的物理量测取提供了理论依据和技术支持,通过编制程序可以实现轧机在线系统监测和故障分析,从而确保轧机正常平稳运行。

关键词：计量学轧机主传动系统扭振盲测点扭矩

耦合相对转动非线性动力系统的稳定性与近似解

在线全文

学校读者我要写书评

暂无评论

物理学报 2009年第4期58卷 2147-2154页

作者：时培明刘彬蒋金水燕山大学测试计量技术及仪器河北省重点实验室秦皇岛066004

研究了一类含三次非线性耦合项的相对转动非线性动力系统的动力学行为.建立了具有非线性弹性力、广义摩阻力耦合项的系统动力学方程.运用多尺度法求解谐波激励下耦合非自治系统的近似解,通过讨论系统的主共振和内共振特性,分析了耦合项... 详细信息

研究了一类含三次非线性耦合项的相对转动非线性动力系统的动力学行为.建立了具有非线性弹性力、广义摩阻力耦合项的系统动力学方程.运用多尺度法求解谐波激励下耦合非自治系统的近似解,通过讨论系统的主共振和内共振特性,分析了耦合项对系统响应的影响.应用奇异性理论研究了主振稳态响应分岔方程的稳定性,得到了系统的转迁集和分岔曲线的拓扑结构.

关键词：相对转动非线性耦合动力系统奇异性理论稳定性

一类非线性相对转动周期系统的平衡稳定性分析

在线全文

学校读者我要写书评

暂无评论

物理学报 2006年第8期55卷 3852-3857页

作者：赵武刘彬时培明蒋金水燕山大学信息工程学院秦皇岛066004 中国第一重型机械集团公司设计研究院大连116600

利用一类周期性变系数线性常微分方程解的基本矩阵的Jordan形,分析一类非线性相对转动系统扭转的运动稳定性,从而得到非线性相对转动周期系统的运动稳定准则.运用Lyapunov函数法,对广泛存在的一类机械传动系统的相对转动运动的平衡稳定... 详细信息

利用一类周期性变系数线性常微分方程解的基本矩阵的Jordan形,分析一类非线性相对转动系统扭转的运动稳定性,从而得到非线性相对转动周期系统的运动稳定准则.运用Lyapunov函数法,对广泛存在的一类机械传动系统的相对转动运动的平衡稳定位置的稳定域进行研究,并给出数学解析表达式.这为工程中广泛存在的这类机械传动系统稳定工作区间工作参数的选取和相似模拟提供了理论依据及方法,据此可进一步分析和评价大型复杂旋转机械主传动系统的扭振稳定性.

关键词：相对转动相似模拟运动稳定平衡稳定

Uncertainties of landslide susceptibility prediction: Influences of random errors in landslide conditioning factors and errors reduction by low pass filter method

在线全文

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 213-230页

作者： Faming Huang Zuokui Teng Chi Yao shui-Hua jiang Filippo Catani Wei Chen jinsong Huang School of Infrastructure Engineering Nanchang UniversityNanchang330031China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu610059China Department of Geosciences University of PadovaPadovaItaly College of Geology and Environment Xi’an University of Science and TechnologyXi’an710054China Discipline of Civil Surveying and Conditioning EngineeringPriority Research Centre for Geotechnical Science and EngineeringUniversity of NewcastleNewcastleNSWAustralia

In the existing landslide susceptibility prediction(LSP)models,the influences of random errors in landslide conditioning factors on LSP are not considered,instead the original conditioning factors are directly taken as the model inputs,which brings uncertainties to LSP *** study aims to reveal the influence rules of the different proportional random errors in conditioning factors on the LSP un-certainties,and further explore a method which can effectively reduce the random errors in conditioning *** original conditioning factors are firstly used to construct original factors-based LSP models,and then different random errors of 5%,10%,15% and 20%are added to these original factors for con-structing relevant errors-based LSP ***,low-pass filter-based LSP models are constructed by eliminating the random errors using low-pass filter ***,the Ruijin County of China with 370 landslides and 16 conditioning factors are used as study *** typical machine learning models,*** perceptron(MLP),support vector machine(SVM)and random forest(RF),are selected as LSP ***,the LSP uncertainties are discussed and results show that:(1)The low-pass filter can effectively reduce the random errors in conditioning factors to decrease the LSP uncertainties.(2)With the proportions of random errors increasing from 5%to 20%,the LSP uncertainty increases continuously.(3)The original factors-based models are feasible for LSP in the absence of more accurate conditioning factors.(4)The influence degrees of two uncertainty issues,machine learning models and different proportions of random errors,on the LSP modeling are large and basically the same.(5)The Shapley values effectively explain the internal mechanism of machine learning model predicting landslide *** conclusion,greater proportion of random errors in conditioning factors results in higher LSP uncertainty,and low-pass filter can effectively reduce these random e

关键词： Landslide susceptibility prediction Conditioning factor errors Low-pass filter method Machine learning models Interpretability analysis

Response of ocean acidification to atmospheric carbon dioxide removal

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

Journal of Environmental Sciences 2024年第6期140卷 79-90页

作者： Jiu jiang Long Cao Xiaoyu jin Zechen Yu Han Zhang Jianjie Fu Guibin jiang School of Environment Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Key Laboratory of Geoscience Big Data and Deep Resources of Zhejiang Province School of Earth SciencesZhejiang UniversityHangzhou 310058China Zhejiang Climate Center Hangzhou 310052China

Artificial CO_(2)removal from the atmosphere(also referred to as negative CO_(2)emissions)has been proposed as a potential means to counteract anthropogenic climate *** we use an Earth system model to examine the response of ocean acidification to idealized atmospheric CO_(2)removal *** our simulations,atmospheric CO_(2)is assumed to increase at a rate of 1%per year to four times its pre-industrial value and then decreases to the pre-industrial level at a rate of 0.5%,1%,2%per year,*** results show that the annual mean state of surface ocean carbonate chemistry fields including hydrogen ion concentration([H^(+)]),pH and aragonite saturation state respond quickly to removal of atmospheric CO_(2).However,the change of seasonal cycle in carbonate chemistry lags behind the decline in atmospheric CO_(2).When CO_(2)returns to the pre-industrial level,over some parts of the ocean,relative to the pre-industrial state,the seasonal amplitude of carbonate chemistry fields is substantially *** results also show that changes in deep ocean carbonate chemistry substantially lag behind atmospheric CO_(2)*** CO_(2)returns to its pre-industrial value,the whole-ocean acidity measured by[H^(+)]is 15%-18%larger than the pre-industrial level,depending on the rate of CO_(2)*** study demonstrates that even if atmospheric CO_(2)can be lowered in the future as a result of net negative CO_(2)emissions,the recovery of some aspects of ocean acidification would take decades to centuries,which would have important implications for the resilience of marine ecosystems.

关键词： Carbon dioxide removal Net negative CO_(2)emission Ocean acidification Climate change Earth system modeling

在线全文

学校读者我要写书评

暂无评论

激光测量回转机械振动的新方法

计量学报 2008年第2期29卷 145-148页

作者：刘彬蒋金水宋文健燕山大学河北秦皇岛066004

为了测量恒定转速上叠加的随机波动转速引起的振动,分析了回转机械转轴瞬时转速的表达关系,采用激光多普勒测量转轴瞬时转速的方法,测出了恒定转速上叠加的随机波动转速引起的振动。提出了一种信号处理方法,有效地克服了激光多普勒信号... 详细信息

为了测量恒定转速上叠加的随机波动转速引起的振动,分析了回转机械转轴瞬时转速的表达关系,采用激光多普勒测量转轴瞬时转速的方法,测出了恒定转速上叠加的随机波动转速引起的振动。提出了一种信号处理方法,有效地克服了激光多普勒信号信噪比小、信号有时出现丢失的现象。对某电机升降速阶段的振动进行测试,振动是由于偏心引起的,电机的最大转速为4 000 r/min。结果表明,此方法能够测试出恒定的转速上叠加的随机波动转速引起的振动。

关键词：计量学随机波动瞬时转速激光多普勒信噪比

Reactive Transport Process of Earthquake-induced Hydrochemical Changes in Guanding Thermal Spring,Western Sichuan,China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2024年第1期98卷 241-249页

作者： NA jin jiang Xue SHI Zheming CHEN Yanmei Hubei Key Laboratory of Petroleum Geochemistry and Environment(Yangtze University) Wuhan 430100China School of Environmental Studies China University of GeosciencesWuhan 430074China School of Water Resources and Environment China University of GeosciencesBeijing 100083China State Key Laboratory of Water Resource Protection and Utilization in Coal Mining Beijing 100000China

Earthquake-related hydrochemical changes in thermal springs have been widely observed;however,quantitative modeling of the reactive transport process is *** the present study,we apply reactive transport simulation to capture the hydrochemical responses in a thermal spring following the Wenchuan Ms 8.0 and Lushan Ms 7.0 *** first constrain deep reservoir geothermal fluid compositions and temperature by multicomponent geothermometry,and then a reactive geochemical transport model is constructed to reproduce the hydrochemical evolution *** results show that the recharge from the shallow aquifer increases gradually until it reaches a peak because of the permeability enhancement caused by the Lushan earthquake,which may be the mechanism to explain the earthquake-related hydrochemical *** contrast to the postseismic effect of the Wenchuan earthquake,the chemical evolution can be considered as hydrochemical anomalies related to the Lushan *** study proves that the efficient simulation of reactive transport processes is useful for investigating earthquake-related signals in hydrochemical time series.

关键词： earthquake hydrochemical changes reactive geochemical transport model Kangding area