检索结果-南通市图书馆

Simulation of clinker grinding circuits of cement plant based on process models calibrated using GA search method

Journal of Central South University 2014年第2期21卷 799-810页

作者： a.farzanegan E.Ghasemi Ardi A.Valian V.Hasanzadeh School of Mining College of EngineeringUniversity of Tehran Department of Mining Faculty of EngineeringUniversity of Kashan

Particle size distributions of obtained samples from several sampling campaigns were determined and raw data were mass balanced before being used in simulation *** determination of breakage function,selection function,Bond work index,residence time distribution parameters,and Whiten's model parameters for air separators and diaphragms between the two compartments of tube ball mills,performance of the circuits was simulated for given throughputs and feed particle size ***'s model parameters were determined by GA(genetic algorithm) toolbox of MATLAB *** on implemented models for modeling and simulation,optimization of circuits was carried *** increased nearly 10.5% and 15.8% in fresh feed capacity input to each tube ball *** addition,circulating load ratios of circuits are modified to 118% and 127% from low level of 57% and 22%,respectively,and also cut points of air separators are adjusted at 30 and 40 μm from high range of 53 and 97 μm,*** applications helped in well-operation and energy consumption reduction of equipments.

关键词： cement plant clinker grinding genetic algorithm simulation optimization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A neuro-observer-based optimal control for nonaffine nonlinear systems with control input saturations

引用

Control Theory and Technology 2021年第2期19卷 283-294页

作者： Behzad farzanegan Mohsen Zamani Amir Abolfazl Suratgar Mohammad Bagher Menhaj Distributed Intelligent Optimization Research Lab Department of Electrical EngineeringAmirkabir University of TechnologyTehranIran Computational Intelligence Lab Department of Electrical EngineeringAmirkabir University of TechnologyTehranIran The School of Electrical Engineering and Computer Science The University of NewcastleNewcastleAustralia Department of Medical Physics and Engineering Shiraz University of Medical SciencesShirazIran

In this study,an adaptive neuro-observer-based optimal control(ANOPC)policy is introduced for unknown nonaffine nonlinear systems with control input ***–Jacobi–Bellman(HJB)framework is employed to minimize a non-quadratic cost function corresponding to the constrained control *** consists of both analytical and algebraic *** the analytical part,first,an observer-based neural network(NN)approximates uncertain system dynamics,and then another NN structure solves the HJB *** the algebraic part,the optimal control input that does not exceed the saturation bounds is *** weights of two NNs associated with observer and controller are simultaneously updated in an online *** ultimately uniformly boundedness(UUB)of all signals of the whole closed-loop system is ensured through Lyapunov’s direct ***,two numerical examples are provided to confirm the effectiveness of the proposed control strategy.

关键词： Input constraints Optimal control Neural networks Nonaffine nonlinear systems Reinforcement learning Unknown dynamics

来源：

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

手术后患者静脉自控镇痛中联合使用吗啡和氯胺酮是否优于单独使用吗啡？

引用

麻醉与镇痛 2009年第2期5卷 49-55页

作者： Gorazd Sveticic, MD Farzan farzanegan, MD Patrick Zmoos, MD, Sandra Zmoos, CRNA Urs Eichenberger, MD Michele Curatolo, MD 蒋琦亮(译) Department of Anesthesiology Inselspital Bern Switzerland 不详

背景患者自控镇痛（PCA）时在吗啡中加入氯胺酮最初有很多基础和临床研究支持，但是后来的一些阴性研究结果却对这种方法提出了挑战。那些早期研究中存在的重要缺陷包括：研究的病例数太少，吗啡和氯胺酮联合使用的剂量非最佳剂量以及... 详细信息

背景患者自控镇痛（PCA）时在吗啡中加入氯胺酮最初有很多基础和临床研究支持，但是后来的一些阴性研究结果却对这种方法提出了挑战。那些早期研究中存在的重要缺陷包括：研究的病例数太少，吗啡和氯胺酮联合使用的剂量非最佳剂量以及没有对所有相关结果进行分析。本研究采用大样本分组，比较手术后PCA患者联合使用吗啡和氯胺酮与单独使用吗啡的镇痛效果。我们采用了优化后的前期研究方法以确定吗啡和氯胺酮联合使用的方法。方法研究选择352例大型择期骨科手术的患者，以随机、双盲形式分为2组，一组患者接受单次1．5mg吗啡的PCA（M组，n=176），另一组患者接受单次1．5mg吗啡复合1．5mg氯胺酮的PCA（MK组，n=176）。将治疗中的镇痛不全或发生不可接受的副作用定义为治疗不满意。另外，记录PCA总用药量、PCA使用时间、直接医疗费用和手术后3及6个月慢性疼痛患者的人数。结果PCA治疗不满意的发生率在M组为33．0％而在MK组为36．9％（P=0．50）。对于次要指标，两组间没有显著差异。结论大型骨科手术患者使用吗啡与小剂量氯胺酮PCA并无明显优势，故不推荐作为常规应用。

关键词：小剂量氯胺酮联合使用患者静脉自控镇痛手术后吗啡单独患者自控镇痛直接医疗费用

来源：

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

Invasive candidiasis in critical care setting, updated recommendations from “Invasive Fungal Infections-Clinical Forum”, Iran

引用

World Journal of Critical Care Medicine 2014年第4期3卷 102-112页

作者： Ashraf Elhoufi Arezoo Ahmadi Amir Mohammad Hashem Asnaashari Mohammad Ali Davarpanah Behrooz farzanegan Bidgoli Omid Moradi Moghaddam Mohammad Torabi-Nami Saeed Abbasi Malak El-Sobky Ali Ghaziani Mohammad Hossein Jarrahzadeh Reza Shahrami Farzad Shirazian Farhad Soltani Homeira Yazdinejad Farid Zand Department of Critical Care Medicine Dubai Hospital Dubai Health Authority Department of Anesthesiology and Critical Care Sina Hospital Tehran University of Medical Sciences Department of Pulmonology and Critical Care Ghaem Hospital Mashhad University of Medical Sciences Department of Infectious Diseases and Tropical Medicine Shiraz University of Medical Sciences Tracheal Disease Research Center Shahid Behesti University of Medical Sciences Department of Anesthesiology and Critical Care Rasoul-e-Akram Hospital Iran University of Medical Sciences Department of Neuroscience School of Advanced Medical Sciences and Technologies Shiraz University of Medical Sciences Behphar Scientific Committee Behphar Group Anesthesiology and Critical Care Research Center Isfahan University of Medical Sciences Invasive Fungal Infections-Clinical Forum Intensive Care and Burn Units Motahhari Hospital Intensive Care Unit Vali-e-Asr Hospital NAJA University Department of Anesthesiology and Critical Care Golestan Hospital Ahwaz Jundishapur University of Medical Sciences Department of Anesthesiology and Critical Care Taleghani Hospital Shahid Beheshti University of Medical Sciences Shiraz Anesthesiology and Critical Care Research Center Shiraz University of Medical Sciences

Invasive candidiasis(IC) bears a high risk of morbidity and mortality in the intensive care units(ICU). With the current advances in critical care and the use of widespectrum antibiotics, invasive fungal infections(IFIs) and IC in particular, have turned into a growing concern in the ICU. Further to blood cultures, some auxil-iary laboratory tests and biomarkers are developed to enable an earlier detection of infection, however these test are neither consistently available nor validated in our setting. On the other hand, patients' clinical status and local epidemiology data may justify the empiric antifungal approach using the proper antifungal option. The clinical approach to the management of IC in febrile, non-neutropenic critically ill patients has been defined in available international guidelines; nevertheless such recommendations need to be customized when applied to our local practice. Over the past three years, Iranian experts from intensive care and infectious diseases disciplines have tried to draw a consensus on the management of IFI with a particular focus on IC in the ICU. The established IFI-clinical forum(IFI-CF), comprising the scientific leaders in the field, has recently come up with and updated recommendation on the same(June 2014). The purpose of this review is to put together literature insights and Iranian experts' opinion at the IFI-CF, to propose an updated practical overview on recommended approaches for the management of IC in the ICU.

关键词： Invasive candidiasis Intensive care unit IFI-clinical forum Recommendations Iran

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：