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On the Motion of the Structure Varying Multibody Systems with Two-Dimensional Dry Friction
Fujie Xia,Peter Wolfs,Colin Cole 대한기계학회 2005 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.19 No.4
In the present paper the dynamics of the structure varying multibody systems caused by stick-slip motion with two-dimensional dry friction are analyzed. The methods to determine friction force both in stick and slip states are described. The direct method of considering the wagon bogie system as a structure varying system was used to consider two dimensional friction at the wheelset-side frame connection. The concept of friction direction angle used to determine the friction force components of two-dimensional dry friction both in the stick and slip motion states was used. A speed depended friction coefficient was used and described approximately by hyperbolic secant function. All switch conditions were derived and friction forces both for stick and slip states. Some simulation results are provided.
APPROPRIATE SELECTION AND OPTIMIZATION OF BIOLOGICAL WASTEWATER TREATMENT PROCESSES
FUJIE,Koichi 嶺南大學校 環境問題硏究所 1994 環境硏究 Vol.14 No.1
Characteristics of aerobic biological wastewater treatment processes, such as activated sludge process, trickling filter process, rotating biological contactor, land application and so on, was studied from view points of the power economy, which is defined as the amount of BOD removed per unit power consumption, and the rate of BOD removal per unit floor area of each process. Effects of the operating conditions and the configurations of the process on their performance were clarified for the appropriate selections and their operating conditions to give a high power economy and to maintain a high quality effluent as well.
藤能成 대구대학교 인문과학연구소 1992 人文科學硏究 Vol.10 No.-
Saigyo is an exceptional poet and a monk who lived in 12th century of Japan. Saigyo is generally regarded as a monk of the Shingon(眞言)-sect, because he wrote the several poems about Shingon thought and training. Nevertheless, he also wrote poems which implied his deep faith in the pure Land of Amida Buddha. Therefore it is possible to conclude that he was not only a Shingon monk, but also a believer in Pure land thought. There is Kikigaki-shu(聞書集), a collection of poems, which helps to illustrate this from the 35th to the 44th poem it has themes which are written with Chinese characters. These themes and poems are called "Ten themes and ten poems". Some of these themes and poems show Saigyo's deep faith for the Pure Land. It may be construed that these ten themes were guotated from the Sutras or its annotated editions. After attempting to search through various authoritative sources, Koyo-shu was found to be the most informative. Koyo-shu was supporsedly written by a Shingon monk of the 12th century, but it was greatly effected by Tendai(天台) doctrine. This can be determined by noticing many quotations from Ojoyo-shu (往生要集), the book of typical pure Land thought in the Tendai-sect. However the thought of Koyo-shu is based on Shingon-doctrin, it encourages people to be born in the Pure Land by the way of Tendai theory. Therefore if Saigyo had read this book, we can conclude that he was a Shingon monk who believed Tendais's Pure Land thought. Undoubtedly Saigyo devoted himself to the teachings of this book. Thus we can conclude that Saigyo had believed Tendai's pure Land thought, though he was a monk of the Shingon.
Fujie,Koichi,Okada,Mitumasa,Kawashima,Hiroyuki,Okazaki,Minoru 嶺南大學校 環境問題硏究所 1995 環境硏究 Vol.15 No.1
A hollow fiber microfiltration (HMF) membrane featured an unique air-backwashing and a high filtrate flux under a low pressure and a low cross flow rate was successfully incorporated with the aerobic submerged biofilters for the advanced treatment of domestic wastewater. HMF system A in which the wastewater filtrated directly by the HMF membrane was treated by the aerobic submerged biofilter and HMF system B in which the moving bed aerobic biofilter (MBF) was followed by the HMF were proposed and were investigated in terms of the filtrate fluxe, the organic removal, the power consumption and the running cost based on the experimental results. The running cost was comparable with the conventional activated sludge process, whereas the effluent quality was superior than that.
Millimeter-wave Technologies for ITS Wireless Communications
Fujise, Masayuki The Korea Institute of Information and Commucation 2002 정보와 통신 Vol.19 No.9
CRL (Communications Research Laboratory, Independent Administrative Institution, Japan) is developing ITS wireless communication technologies in millimeter-wave frequency region. Technologies are categorized for inter-vehicle communications (IVC) and road-vehicle communications (RVC). In this paper, system concepts and the experimental facilities are introduced. The experimental facility for inter-vehicle communications is gotten ready in 60 GHz frequency region and the experimental system for road-vehicle communications is based on RoF (Radio on Fiber) technology in 36-37GHz frequency region.
Zero Emission Production for Conservation of Water Environment
FUJIE, Koichi 嶺南大學校 環境問題硏究所 1999 環境硏究 Vol.18 No.2
AbstractsThis paper aims to give basic information for the minimization of pollution load to environment by reducing wastewater discharge from production process and by selecting appropriate wastewater treatment processes based on characteristic evaluation of both treatment processes and that of wastewaters. Strategies and methodologies to analyze emissions from the production processes to reduce those by refining and/or replacing the unit process with the alternatives are introduced as well. It was stressed that taking materials and energy balances of the production process are the essential to clarify emissions quantitatively for the reduction of pollutants in the focused process. A procedure including biological degradability, activated carbon adsorption, chemical oxidation for mineralization and for improvement of biodegradability of pollutants, coagulation, and so on, was proposed to evaluate wastewaters for appropriate selection of treatment processes.