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CHALLENGES FOR PROCESS INDUSTRIES IN RECYCLING

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China Particuology 2006年第2期4卷 47-59页

作者： lothar reh Swiss Federal Institute of Technology ETH ZuerichInstitute of Process Engineering CH-8092 Zuerich Switzerland

Increasing population and individual wealth have led to a higher demand for energy and raw material resources as well as for steady improvement of processing technology in view of efficient use of resources and avoiding emissions in production and recycling processes. Present situation and future trend of recycling processing are discussed by examples from the aluminium and steel industries, recycling of cars and post-consumer municipal recovery, The importance of more intense observance of thermodynamic laws and of a 4E strategy ＂Economy, Energy, Environment and Education＂ is outlined.

关键词： environment sustainability resources recycling recovery re-integration global cycle entropy secon-dary materials

DEVELOPMENT POTENTIALS AND RESEARCH NEEDS IN CIRCULATING FLUIDIZED BED COMBUSTION

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China Particuology 2003年第5期1卷 185-200页

作者： lothar reh Institute of Process Engineering Swiss Federal Institute of Technology (ETH) Sonneggstrasse 3 CH-8092 Zuich Switzerland

First a report about present status of circulating fluidized bed reactors for coal and multi-fuel combustion in power plants is given. Thereafter the development potentials and research needs for further improvement of CFB com-bustors operating with finely grained bed materials are discussed and recommendations for direction of further research and development work are presented.

关键词： CFB-combustion fluid dynamics scale-up multi-fuel modeling review

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循环流化床能量最小多尺度作用模型

中国科学（B辑） 1992年第11期B卷 1127-1136页

作者：李静海郭慕孙 lothar reh 中国科学院化工冶金研究所多相反应开放实验室北京100080 Swiss Federal Institute of Technology CH-8092Zurich

本文建立了完整的循环流化床流体动力学数学模型。内容包括顶部稀区和底部密区局部状态的模拟和径向分布的计算。并确定了两区共存和三种不同操作方式存在的条件。研究表明,能量最小在循环流化床的气固相互作用中起着重要的作用。顶部... 详细信息

本文建立了完整的循环流化床流体动力学数学模型。内容包括顶部稀区和底部密区局部状态的模拟和径向分布的计算。并确定了两区共存和三种不同操作方式存在的条件。研究表明,能量最小在循环流化床的气固相互作用中起着重要的作用。顶部稀区和底部密区的气固相互作用机理完全不同。底部密区处于颗粒流体协调(FPC)状态,其稳定条件是悬浮输送能耗N_st等于最小值;而顶部稀区处于流体控制状态,其稳定条件是N_st=最大值或W_st=最小值。(W_st)_FPC=(W_st)_FD时,两区共存或过渡,系统处于饱和夹带状态。两个区域中的径向分布也都必须满足相应的整体稳定性条件。

关键词：两相流循环流化床数学模型

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气固垂直并流上行流态化不均匀性的机理

工程热物理学报 1991年第4期12卷 440-443页

作者：李静海郭慕孙 lothar reh 中国科学院化工冶金研究所北京100080 瑞士苏黎世高等工业学院

一、引言不均匀性是各类两相流,尤其是气固流态化最显著的特征之一。因而成为流态化研究的焦点。然而目前的研究还只限于对不均匀结构的实验考察和改善这种结构的尝试。对于不均匀结构产生的机理并不十分清楚,改善这种结构的研究也缺... 详细信息

一、引言不均匀性是各类两相流,尤其是气固流态化最显著的特征之一。因而成为流态化研究的焦点。然而目前的研究还只限于对不均匀结构的实验考察和改善这种结构的尝试。对于不均匀结构产生的机理并不十分清楚,改善这种结构的研究也缺乏依据。本文将在多尺度作用能量最小(EMMS)模型的基础上,进一步分析不均匀结构产生的机理,定量阐明将它归因于能量最小的机制。

关键词：两相流并流流态化不均匀性

VPN and Non-VPN Network Traffic Classification Using Time-Related Features

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Computers, Materials & Continua 2022年第8期72卷 3091-3111页

作者： Mustafa Al-Fayoumi Mohammad Al-Fawa’reh Shadi Nashwan King Hussein School of Computing Sciences Princess Sumaya University for Technology(PSUT)AmmanJordan College of Information Technology and Computer Science Yarmouk UniversityAmmanJordan College of Computer and Information Sciences Jouf UniversityAljoufSaudi Arabia

The continual growth of the use of technological appliances during the COVID-19 pandemic has resulted in a massive volume of data flow on the Internet,as many employees have transitioned to working from ***,with the increase in the adoption of encrypted data transmission by many people who tend to use a Virtual Private Network(VPN)or Tor Browser(dark web)to keep their data privacy and hidden,network traffic encryption is rapidly becoming a universal *** affects and complicates the quality of service(QoS),traffic monitoring,and network security provided by Internet Service Providers(ISPs),particularly for analysis and anomaly detection approaches based on the network traffic’s *** method of categorizing encrypted traffic is one of the most challenging issues introduced by a VPN as a way to bypass censorship as well as gain access to geo-locked ***,an efficient approach is especially needed that enables the identification of encrypted network traffic data to extract and select valuable features which improve the quality of service and network management as well as to oversee the overall *** this paper,the classification of network traffic data in terms of VPN and non-VPN traffic is studied based on the efficiency of time-based features extracted from network ***,this paper suggests two machine learning models that categorize network traffic into encrypted and non-encrypted *** proposed models utilize statistical features(SF),Pearson Correlation(PC),and a Genetic Algorithm(GA),preprocessing the traffic samples into net flow traffic to accomplish the experiment’s *** GA-based method utilizes a stochastic method based on natural genetics and biological evolution to extract essential *** PC-based method performs well in removing different features of network *** a microsecond perpacket prediction time,the best model achieved an accuracy of more than 95.02 percent in

关键词： Network traffic-flow traffic classification time-based features machine learning VPN traffic analysis

Possible markers of the Jurassic/Cretaceous boundary in the Mediterranean Tethys:A review and state of art

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Geoscience Frontiers 2011年第4期2卷 475-490页

作者： Jozef Michalik Daniela rehkov Slovakian Academy of Sciences Geological InstituteDubravska cesta 9P.O.Box 106840 05 BratislavaSlovak Republic Comenius University Faculty of Natural SciencesDepartment of Geology and PalaeontologyMlynska dolina G-1842 15 BratislavaSlovak Republic

During the last decades,several integrated studies of Tethyan Jurassic/Cretaceous boundary sections from different countries were published with the objective to indicate problems for the selection of biological,chemical or physical markers suitable for identification of the Jurassic/Cretaceous boundary-the only system boundary within the Phanerozoic still not fixed by *** the boundary between the Jurassic and Cretaceous systems is a matter of global scale *** problem of proposing possible J/K boundary stratotypes results from lack of a global index fossils, global sea level drop,paleogeographic changes causing development of isolated facies areas,as well as from the effect of Late Cimmerian *** contribution summarizes and comments data on J/K boundary interval obtained from several important Tethyan sections and shows still existing problems and discrepancies in its determination.

关键词： J/K boundary Interregional correlation Biostratigraphic proxies Calpionellids Nannofossils

Leader-following synchronization of a multi-agent system with heterogeneous delays

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Frontiers of Information Technology & Electronic Engineering 2021年第1期22卷 97-106页

作者： Branislav rehAK Volodymyr LYNNYK The Czech Academy of Sciences Institute of Information Theory and AutomationPraha 18200Czech Republic

An algorithm is presen ted for leader-following synchronization of a multi-agen t system composed of linear agents with time *** presence of different delays in various agents can cause a synchronization error that does not converge to ***,the norm of this error can be bounded and this boundary is presen *** proof of the main results is formulated by means of linear matrix inequalities,and the size of this problem is independent of the number of *** are illustrated through examples,highlighting the fact that the steady error is caused by heterogeneous delays and demonstrating the capability of the proposed algorithm to achieve synchronization up to a certain error.

关键词： Multi-agent system Time delay Linear matrix inequality

Development of the nervous system

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1000年

作者： Dan H. Sanes Thomas A. reh William A. Harris

来源：畅想之星图书光盘版（南... 评论

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铰接式抱罐车的研制

湖北工业大学学报 2008年第2期23卷 30-31,43页

作者：任中立中冶宝钢技术服务有限公司上海200941

从抱罐车的动力传动系统和装罐,卸罐技术方面介绍了铰接式抱罐车的研制,它的成功研制填补了国内该项技术的空白.

关键词：钢渣铰接式抱罐车动力传动系统