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st型输液终端滤器的研究

生物医学工程学杂志 1984年第1期 28-32页

作者：四川“st型输液终端滤器”科研协作组 ,蒯亚希

据报道在静脉输液时往往由于不慎将微粒异物输入人体而引起静脉炎、肉芽肿、血栓栓塞和肿瘤等多种疾病。所以美、英、日等国对输液成品中微粒数目早已作了严格限制,并且在临床输液装置上普遍规定使用“终端滤器”的措施,使输液中的微... 详细信息

据报道在静脉输液时往往由于不慎将微粒异物输入人体而引起静脉炎、肉芽肿、血栓栓塞和肿瘤等多种疾病。所以美、英、日等国对输液成品中微粒数目早已作了严格限制,并且在临床输液装置上普遍规定使用“终端滤器”的措施,使输液中的微粒数目达到规定的标准。尽管我国药典(77年版)对输液成品中的微粒数目前还未

关键词：滤器 st 过滤效果浸提液

意法半导体(st)推出面向安全非接触式支付和物联网的高性能NFC技术

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微型机与应用 2017年第5期36卷 87-87页

作者： st st

近日,意法半导体发布了面向非接触式支付和数据交换的新一代NFC芯片,共有三款新产品,包括一款st21NFCD NFC控制器和两款st54系统级封装（SiP）系列产品。st21NFCD采用意法半导体最近并购的经过市场考验的升压技术,而st54系统级封装则集... 详细信息

近日,意法半导体发布了面向非接触式支付和数据交换的新一代NFC芯片,共有三款新产品,包括一款st21NFCD NFC控制器和两款st54系统级封装（SiP）系列产品。st21NFCD采用意法半导体最近并购的经过市场考验的升压技术,而st54系统级封装则集成NFC控制器和意法半导体最新的安全单元技术。

关键词：意法半导体 FC技术非接触式安全物联网系统级封装性能 NFC

statistical physics in QCD evolution towards high energies

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Science China(Physics,Mechanics & Astronomy) 2015年第8期58卷 1-32页

作者： MUNIER stphane Centre de physique thorique ′Ecole PolytechniqueCNRS Palaiseau France

The concepts and methods used for the study of disordered systems have proven useful in the analysis of the evolution equations of quantum chromodynamics in the high-energy regime: Indeed, parton branching in the semi-classical approximation relevant at high energies and at a fixed impact parameter is a peculiar branching-diffusion process, and parton branching supplemented by saturation effects(such as gluon recombination) is a reaction-diffusion process. In this review article, we first introduce the basic concepts in the context of simple toy models, we study the properties of the latter, and show how the results obtained for the simple models may be taken over to quantum chromodynamics.

关键词： quantum chromodynamics color dipole model color glass condensate stochastic fronts traveling waves reaction-diffusion

st微控制器驱动Anki Drive人工智能模型赛车

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微型机与应用 2013年第24期32卷 97-页

作者： st公司 st公司

2013年12月12日，横跨多重电子应用领域、全球领先的半导体供应商意法半导体宣布，机器人和人工智能领域的创新公司 Anki 采用 stM32微控制器研制该公司的首款模型赛车模型 Anki DriveTM，消费者可在兼容的 iOS 设备上下载一个应用程序... 详细信息

2013年12月12日，横跨多重电子应用领域、全球领先的半导体供应商意法半导体宣布，机器人和人工智能领域的创新公司 Anki 采用 stM32微控制器研制该公司的首款模型赛车模型 Anki DriveTM，消费者可在兼容的 iOS 设备上下载一个应用程序，然后使用该设备操作智能机器人模型赛车进行比赛。

关键词：人工智能微控制器微型控制器 Anki Drive 赛车 st

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st L5961汽车多媒体功率管理方案

世界电子元器件 2008年第7期 58-58页

作者： st公司 st公司

综述L5961功率管理器件是用于MOst （Media Oriented Systems Transport）网络的功率管理解决方案。MOst网络最初是为汽车行业开发的,并且针对车载多媒体和信息娱乐应用进行了优化,

关键词：汽车多媒体功率管理 MOst Systems 汽车行业网络器件车载

老年高血压病患者缺血性st段改变和血压昼夜节律关系

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当代医学 2018年第31期24卷 59-61页

作者：彭江刘强四川省军区新蓉干休所门诊部四川成都610041

目的探讨老年高血压病缺血性st段改变和血压昼夜节律的关联。方法根据是否伴有缺血性st段改变将43例老年高血压病例分成两组,伴st段改变组(14例)和不有st段改变组(29例),观察和比较组间动态血压参数。结果与不伴st段改变组比较,伴st段... 详细信息

目的探讨老年高血压病缺血性st段改变和血压昼夜节律的关联。方法根据是否伴有缺血性st段改变将43例老年高血压病例分成两组,伴st段改变组(14例)和不有st段改变组(29例),观察和比较组间动态血压参数。结果与不伴st段改变组比较,伴st段改变组收缩压平均值和负荷值以及昼夜节律异常检出率显著增高。结论血压昼夜节律性异常是导致老年高血压病患者心肌缺血进程加速的因素。

关键词：高血压昼夜节律心肌缺血

Acute Coronary Syndrome with Persistent st Segment Elevation Isolated in aVR: A Case study

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World Journal of Cardiovascular Diseases 2020年第2期10卷 67-71页

作者： Désiré Alain Affangla Angèle Wabo Kandem Wally Niang Mboup Djibril Marie Ba Mame Madjiguene Ka Cheikh Mouhamadou B. M. Diop Malick Ndiaye Fatou Aw stéphanie Akanni Adamson Phiri Mohamed Cor Dior Leye Maboury Diao Unit of Training and Research in Medical Sciences University of Thies Thies Senegal Hôpital Saint Jean de Dieu Thies Senegal Department of Cardiology Hôpital Aristide Le Dantec Dakar Senegal

A 53 years old female patient with hypertension presented with constrictive retrosternal chest pain. Initial Electrocardiogram (ECG) showed st elevation in aVR and high level cardiac Troponin-I. Thrombolysis with streptokinase was performed and she underwent?coronary angiography who showed a long tight anterior inter ventricular lesion, occlusion of the proximal circumflex and an intermediate lesion of segment 2 of the right coronary.

关键词： Acute Coronary Syndrome st Elevation aVR Coronary Angiography

Comparative study of abrasion via microindentation and microscratch tests of reinforced and unreinforced lamellar cast iron

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Friction 2019年第5期7卷 457-465页

作者： Mohammed MENDAS stéphane BENAYOUN Laboratory of Rheology and Mechanics(LRM) Hassiba Benbouali University of ChlefHay Essalem Chlef BP151(02000)Algeria LTDS UMR CNRS5513Ecole Centrale de LyonUniversity of LyonEcully Cedex F-69134France

This study compares micro-abrasive wear in two kinds of grey cast iron. Classical lamellar cast iron with fully pearlitic matrix(FGL1) and lamellar micro-alloyed cast iron with phosphorus and boron(FGL2) are used. FGL2 has a fully pearlitic matrix reinforced by the hard phosphorus eutectic phase. The microstructures of these two types of iron are mechanically characterized using nanoindentation tests. Vickers microindentation and microscratch tests are also performed on these iron samples. The indent and scratch images obtained via scanning electron microscopy were used to compare the scratch damage to the two kinds of iron. The friction coefficient is discussed in terms of applied load, indenter attack angle, and scratch damage. Nanoindentation tests show an improvement in graphite’s mechanical properties and an increase in the matrix hardness of the FGL2, relatively to FGL1. The same damage forms for both microindentation and microscratch testing were observed for the two iron samples. However, cracking of the hard phase is observed in FGL2. The results show that the scratching of the micro-alloyed iron(FGL2) leads to less matrix damage and to an extended microploughing wear mechanism. However, at low normal load, the reinforcement of the matrix can increase the friction coefficient.

关键词： grey cast iron indentation microscratch abrasive wear

Machine Learning for heat radiation modeling of bi-and polydisperse particle systems including walls

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Particuology 2023年第3期74卷 119-140页

作者： Josef Tausendschön Gero stöckl stefan Radl Institute of Process and Particle Engineering Graz University of TechnologyInffeldgasse 13/III8010GrazAustria

We investigated the ability of four popular Machine Learning methods i.e.,Deep Neural Networks(DNNs),Random Forest-based regressors(RFRs),Extreme Gradient Boosting-based regressors(XGBs),and stacked ensembles of DNNs,to model the radiative heat transfer based on view factors in bi-and polydisperse particle beds including *** training and analyzing the predictive capability of each method,an adjustment of markers used in monodisperse systems,as well as an evaluation of new markers was *** the basis of our dataset that considers a wide range of particle radii ratios,system sizes,particle volume fractions,as well as different particle-species volume fractions,we found that(i)the addition of particle size information allows the transition from monodisperse to bi-and polydisperse beds,and(ii)the addition of particle volume fraction information as the fourth marker leads to very accurate *** terms of the overall performance,DNNs and RFRs should be preferred compared to the other two *** particle-particle view factors,DNN and RFR are on par,while for particle-wall the RFR is *** demonstrate that DNNs and RFRs can be built to meet or even exceed the prediction quality standards achieved in a monodisperse system.

关键词： Discrete element method(DEM) Heat radiation modeling Machine learning View factors Wall radiation Polydisperse particles