Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Hajime Kawai"'
Autor:
Takashi Satow, Hajime Kawai
Publikováno v:
Computers & Mathematics with Applications. 51(2):257-268
Hit and target theory is widely known as a method for deriving the survival probability of a cell from the number of deoxyribonucleic acid (DNA) strand breaks. Direct action and indirect action are the way of causing DNA lesion by radiation. The obje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bfa9c8935660711c60d33292f601beb
Autor:
Junji Koyanagi, Hajime Kawai
Publikováno v:
Mathematical and Computer Modelling. 38:1333-1338
This paper discusses an optimal age maintenance scheme for a queueing system. Customers arrive at the system according to a Poisson process. They form a single queue and are served by a server with general service distribution. The system fails after
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6f6da8b68ab1cd158b66bbdae3b5741
https://doi.org/10.1016/s0895-7177(03)90135-x
https://doi.org/10.1016/s0895-7177(03)90135-x
Autor:
Hajime Kawai, Junji Koyanagi
Publikováno v:
Computers & Mathematics with Applications. 46:1081-1087
We deal with a situation where a worker processes two kinds of jobs, job A and job B. Job A is processed in a certain queueing system, and job B is processed separately from the queueing system if the worker is not in the queueing system. The process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f67401f5c8548112e1f3361e6cc1b993
https://doi.org/10.1016/s0898-1221(03)90122-2
https://doi.org/10.1016/s0898-1221(03)90122-2
Publikováno v:
ChemInform. 45
A PCy3-catalyzed ring-expansion reaction of aziridine-fused fullerenes (aziridinofullerenes) through the insertion of CO2 and aryl isocyanates is disclosed. The reaction allows for CO2 fixation by aziridinofullerenes, producing oxazolidinone-fused fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ad52df68a7b379e1d1d512032b78d7
https://doi.org/10.1002/chin.201409103
https://doi.org/10.1002/chin.201409103
Autor:
Junji Koyanagi, Hajime Kawai
Publikováno v:
Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications. 2001:171-175
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e79e940cc39812c4faa1bc2385df985
https://doi.org/10.5687/sss.2001.171
https://doi.org/10.5687/sss.2001.171
Autor:
Hajime Kawai, K Hirayama
Publikováno v:
Mathematical and Computer Modelling. 31:165-173
We consider a discrete time Markov decision process (MDP) with a finite state space, a finite action space, and two kinds of immediate rewards. The problem is to maximize the time average reward generated by one reward stream, subject to the other re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49ab6ccfd58d47427092bfcaa655647f
https://doi.org/10.1016/s0895-7177(00)00084-4
https://doi.org/10.1016/s0895-7177(00)00084-4
Autor:
Junji Koyanagi, Hajime Kawai
Publikováno v:
Mathematical and Computer Modelling. 31(10-12):225-234
We study an optimal maintenance policy for the server in a queueing system. Customers arrive at the server in a Poisson stream and are served by an exponential server, which is subject to multiple states indicating levels of popularity. The server st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2201a53a057afaf11d07a3eb5d6625d1
Publikováno v:
The Proceedings of Conference of Kansai Branch. :13-43
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09e8139227c9b534d6e25d10da3979dc
https://doi.org/10.1299/jsmekansai.2000.75._13-43_
https://doi.org/10.1299/jsmekansai.2000.75._13-43_
Autor:
Hajime Kawai, Junji Koyanagi
Publikováno v:
Journal of Quality in Maintenance Engineering. 4:299-311
This paper considers a maintenance problem for a queueing system. The arrival rate decreases as the server state becomes worse. The system can be recovered by maintenance, though the system is closed until the end of maintenance. A semi‐Markov deci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae0cee3e681fafb267896f366ed03856
https://doi.org/10.1108/13552519810234029
https://doi.org/10.1108/13552519810234029
Publikováno v:
Geochimica et Cosmochimica Acta. 62:3205-3220
The Mt. McRae Shale is the footwall rock unit of the Brockman Iron Formation (∼2.5 Ga in age) in the Hamersley Basin, Australia. It is characterized by a high concentration of organic carbon (∼2–8 wt%), an abundance of disseminated pyrite (∼1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91d91954427e9f8968996674e7f87e7d
https://doi.org/10.1016/s0016-7037(98)00229-4
https://doi.org/10.1016/s0016-7037(98)00229-4