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Experimental Study of Sand Bed Configurations in Front of a Vertical Wall Under Wave Action

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China Ocean Engineering 1998年第4期13卷 405-416页

作者： jan Chyan-Deng Professor Department of Hydraulics and Ocean Engineering National Cheng Kung University TainanTaiwan 70101 China.

When a 2-D progressive wave train normally or obliquely approaches a vertical wall and then is normally or obliquely reflected from it, the combination of the approaching and reflected waves may result in a standing wave or a short-crested wave in front of the wall. This paper presents the experimental observations of sand bed configurations under the action of these water waves in front of the wall. The geometry of sand ripples under these water waves in front of the vertical wall is presented as a function of flow parameters, such as the water particle semi-excursion and the mobility number.

关键词： sand bed wave action vertical sea wall bed form standing wave short-crested wave mobility number

The Axial and Radial Solid Loadings up the CFB-Riser

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Chinese Journal of Chemical Engineering 2000年第2期8卷 171-175页

作者： Kathleen Smolders jan Baeyens Chemical Engineering Department Katholieke Universiteit Leuven de Croylaan 46B-3001 HeverleeBelgiumChemical Engineering DepartmentKatholieke Universiteit Leuven de Croylaan 46B-3001 HeverleeBelgium

1 INTRODUCTIONThe determination of the solids hold-up and local solidfluxes is of paramount importance in the study ofthe hydrodynamics of a two-phase *** tech-niques have been used during the past decades(Table1).The... 详细信息

关键词： circulating fluidized beds solids loading axial and radial profiles

Modern technology,liver surgery and transplantation

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Hepatobiliary & Pancreatic Diseases International 2022年第4期21卷 307-309页

作者： jan Lerut Institut de Recherche Expérimentale et Clinique Universitécatholique de LouvainAvenue Hippocrate 551200BrusselsBelgium

Since the first right hepatectomy performed by Jean-Louis Lortat-Jacob on October 16,1951 and the first liver transplantation by Thomas Earl Starzl on March 1,1963,hepatobiliary surgery and liver transplantation had a spectacular development[1,2].After the hesitating beginning in the 1950’s and 1960’s,their evolution really took off in the 1980’,reaching high-speed velocity in the 21st century.

关键词： surgery liver really

Living donor liver transplantation:A complex but worthwhile undertaking

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Hepatobiliary & Pancreatic Diseases International 2020年第4期19卷 305-306页

作者： jan Lerut Institute for Experimental and Clinical Research(IREC) Universitécatholique Louvain(UCL)Avenue Hippocrate 551200 BrusselsBelgium

Since its’first applications in clinical pediatric and adult liver transplantation practice by Strong et *** Makuuchi in 1989[1,2],living donor liver transplantation(LDLT)has been an ever increasing part of the today’s practice of liver *** on different donor demographics(living donation *** donation)and on much larger experiences with partial liver resection(aggressive resection in cirrhotic patients versus non-surgical,locoregional treatments),LDLT merely developped in Asian *** nowadays,this technique accounts for more than 90%of the transplantation activity in the Eastern hemisphere,whereas it accounts only for 5%of activities in the Western one[3,4].

关键词： donor Eastern Strong

“惩罚”还是“激励”?——绿色信贷政策的绿色创新效应研究

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金融经济 2024年第5期 54-65页

作者：简冠群郑希雅甘肃政法大学经济学院

基于我国绿色信贷政策的颁布与实施,以两家重污染企业为研究对象,通过企业融资和研发投入两个视角分析绿色信贷政策在重污染企业绿色创新中所发挥的作用。研究结果表明,“双碳”背景下绿色信贷政策对重污染企业绿色创新存在融资约束和... 详细信息

基于我国绿色信贷政策的颁布与实施,以两家重污染企业为研究对象,通过企业融资和研发投入两个视角分析绿色信贷政策在重污染企业绿色创新中所发挥的作用。研究结果表明,“双碳”背景下绿色信贷政策对重污染企业绿色创新存在融资约束和转型激励两种影响,且融资约束作用影响更甚。对于依赖银行贷款进行融资且不重视研发的重污染企业,绿色信贷政策会通过影响企业融资规模及成本约束其融资行为,对绿色创新产生“惩罚”效应;对于不完全依赖银行贷款融资且重视研发的企业,绿色信贷政策则通过加大研发投入促进企业绿色创新,形成“激励”效应。此外,企业进行绿色创新活动会对企业、社会及环境产生积极效应。鉴于此,我国应该更加注重重污染企业绿色转型的融资约束问题,完善绿色信贷顶层设计;同时,企业也要以绿色信贷为创新激励,更好地促进自身绿色转型。

关键词：绿色信贷政策重污染企业绿色创新融资约束转型激励

A UNIFIED SPECIFICATION FORMAT FOR INTERLEVEL RELATIONS BETWEEN AGENT MODELS IN MULTIPLE ABSTRACTION DIMENSIONS

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International Journal of Modeling, Simulation, and Scientific Computing 2013年第1期4卷 69-95页

作者： jan TREUR VU University Amsterdam Department of Artificial Intelligence to Agents Systems Research GroupDe Boelelaan 10811081 HV AmsterdamThe Netherlands

Multi-agent systems for a certain application area can be modeled at multiple levels of *** relations are a means to relate models from different abstraction *** dimensions of abstraction often occurring are the process abstraction,temporal abstraction,and agent cluster abstraction *** this paper a unifying formalization is presented that can be used as a framework to specify interlevel relations for any of such *** approach is illustrated by showing how a variety of different types of abstraction relations between multi-agent system models can be formally specified in a unified manner.

关键词： Multi-agent model interlevel relation specification

Accuracy of forecast of mine tremors location

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Mining Science and Technology 2009年第5期19卷 668-673页

作者： DRZEWIECKI jan Central Mining Institute

The Upper Silesian Coal Basin is one of the most active mining areas in the world in respect of seismicity. Underground mining in this area takes place in a special environment with a high degree of risk of unpredictable event occurrence. Especially dangerous are phenomena that occur during the extraction of deposits at great depths in the environment of compact rocks. Deep underground mining violates the balance of these rocks and induces dynamic phenomena at the longwall life （in terms of distance） referred to as mine tremors. The sources of these tremors are located in layers characterised by high strength, especially in thick sandstone strata occurring in the roof of the mined seam. In the paper a discussion is presented about the influence of mining intensity （longwall face speed） on the location of mine tremor sources, both in the direction of longwall life （in terms of distance） and towards the surface. The presented material has been prepared basing on the results of tests and measurements carded out at the Central Mining Institute.

关键词： mine tremors forecast longwall life

Utilization of fly ash from coal-fired power plants in China

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第5期9卷 681-687页

作者： Eva SELIC jan-Dirk HERBELL Waste Management Engineering Department of Mechanical Engineering University of Duisburg-Essen Duisburg 47057 Germany

The rapidly increasing demand for energy in China leads to the construction of new power plants all over the country. Coal, as the main fuel resource of those power plants, results in increasing problems with the disposal of solid residues from combustion and off gas cleaning. This investigation describes chances for the utilization of fly ash from coal-fired power plants in China. After briefly comparing the situation in China and Germany, the status of aluminum recycling from fly ash and the ad- vantages for using fly ash in concrete products are introduced. Chemical and physical analyses of Chinese fly ash samples, e.g., X-ray diffraction (XRD), ICP (Inductive Coupled Plasma) and particle size analysis, water requirement, etc. are presented. Rea- sonable amounts of aluminum were detected in the samples under investigation, but for recovery only sophisticated procedures are available up to now. Therefore, simpler techniques are suggested for the first steps in the utilization of Chinese fly ash.

关键词： Fly ash utilization Aluminum recycling Concrete Chemical and physical analyses

Hybrid In-Vehicle Background Noise Reduction for Robust Speech Recognition:The Possibilities of Next Generation 5G Data Networks

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Computers, Materials & Continua 2022年第6期71卷 4659-4676页

作者： Radek Martinek jan Baros Rene Jaros Lukas Danys jan Nedoma VSB-Technical University of Ostrava Faculty of Electrical Engineering and Computer ScienceDepartment of Cybernetics and Biomedical Engineering70800Ostrava-PorubaCzechia VSB Technical University of Ostrava Faculty of Electrical Engineering and Computer ScienceDepartment of Telecommunications70800Ostrava-PorubaCzechia

This pilot study focuses on employment of hybrid LMS-ICA system for in-vehicle background noise *** vehicles are nowadays increasingly supporting voice commands,which are one of the pillars of autonomous and SMART *** speaker recognition for context-aware in-vehicle applications is limited to a certain extent by in-vehicle back-ground *** article presents the new concept of a hybrid system which is implemented as a virtual *** highly modular concept of the virtual car used in combination with real recordings of various driving scenarios enables effective testing of the investigated methods of in-vehicle background noise *** study also presents a unique concept of an adaptive system using intelligent clusters of distributed next generation 5G data networks,which allows the exchange of interference information and/or optimal hybrid algorithm settings between individual *** average,the unfiltered voice commands were successfully recognized in 29.34%of all scenarios,while the LMS reached up to 71.81%,and LMS-ICA hybrid improved the performance further to 73.03%.

关键词： 5G noise reduction hybrid algorithms speech recognition 5G data networks in-vehicle background noise