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SYMPOSIA / S13-5 : TRANSCRIPTION REGULATION BY HISTONE ACETYLASES
(D . Steger),(A . Hassan),(K . Neeley),(M . Vignali),(A . Wallberg),(R . Utley),(K . Ikeda),(S . John),(A . Eberharter),(P . Grant),(M . Pray Grant),(A . Wright),(J . Warkman) 한국생화학분자생물학회 (구 한국생화학회) 1999 6th IUBMB SEOUL CONFERENCE Vol.- No.-
Evaluation of Urinary Nitrogen Excretion from Plasma Urea Nitrogen in Dry and Lactating Cows
Kume, S.,Numata, K.,Takeya, Y,Miyagawa, Y,Ikeda, S.,Kitagawa, M.,Nonaka, K.,Oshita, T.,Kozakai, T. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.8
Data of 42 balance measurements from dry and lactating Holstein cows and blood and urine samples from 24 Japanese Black cows were collected to evaluate the potential for predicting urinary nitrogen (N) excretion from plasma urea nitrogen (PUN). Similar positive correlations were obtained between N intake and apparent N absorption in dry and lactating cows. The regression equations of N intake on urinary N excretion varied in dry and lactating cows, and the difference of urinary N excretion between dry and lactating cows was due to the N secretion into milk. Highly positive correlations were observed between urinary N contents and urinary urea N in Japanese Black cows, and urinary urea N increased with increasing PUN. There were positive correlations between N intake and PUN in dry and lactating cows, but PUN and urinary N excretion in lactating cows were higher than in dry cows. There were positive correlations between PUN and urinary N excretion per BW in dry and lactating cows. Although urinary N excretion could be calculated as (N clearance rate of kidneys)PUNBW, high N clearance rate of kidneys, such as 2.08 L/d/kg BW, may be suitable to calculate urinary N excretion in lactating cows, compared with 1.33 L/d/kg BW in dry cows.
오병훈,C.S. Seo,D.H. Chang,K. Watanabe,K. Usui,K.W. Lee,M. Kawai,M. Kashiwagi,S.H. Jeong,T. Inoue,T.S. Kim,Y. Ikeda 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
A prototype ion source for the KSTAR Neutral Beam (NB) heating system has a multi-cusp plasma chamber with a filament array to produce and maintain a large volume of a uniform and high-density plasma. The filament configuration proper to the structure of cusp magnetic fields is one of the most important factors governing the discharge characteristics of the plasma. The discharge performance of the KSTAR prototype ion source in a fixed-cusp field has been investigated experimentally for three different filament configurations: 1) 32 filaments with a TFTR layer; 2) 32 filaments in a uniformly distributed layer; and 3) 24 filaments in an electron-effective layer. The arc discharge efficiency, defined as the ratio of the ion density to the input arc power, and the plasma uniformity measured by 8 Langmuir probes distributed around the large beam extraction area are the key parameters in estimating the discharge performance of the ion source. The experimental results show that it is necessary to modify not only the filament configuration but also the structure of the cusp magnetic field in the bucket chamber to get a higher plasma efficiency in the source.
Abe, K.,Bronner, C.,Pronost, G.,Hayato, Y.,Ikeda, M.,Iyogi, K.,Kameda, J.,Kato, Y.,Kishimoto, Y.,Marti, Ll.,Miura, M.,Moriyama, S.,Nakahata, M.,Nakano, Y.,Nakayama, S.,Okajima, Y.,Orii, A.,Sekiya, H. American Astronomical Society 2017 The Astrophysical journal Vol.850 No.2
<P>We present the results of a search in the Super-Kamiokande (SK) detector for excesses of neutrinos with energies above a few GeV that are in the direction of the track events reported in IceCube. Data from all SK phases (SK-I through SK-IV) were used, spanning a period from 1996 April to 2016 April and corresponding to an exposure of 225 kiloton-years. We considered the 14 IceCube track events from a data set with 1347 livetime days taken from 2010 to 2014. We use Poisson counting to determine if there is an excess of neutrinos detected in SK in a 10 degrees search cone (5 degrees for the highest energy data set) around the reconstructed direction of the IceCube event. No significant excess was found in any of the search directions we examined. We also looked for coincidences with a recently reported IceCube multiplet event. No events were detected within a +/- 500 s time window around the first detected event, and no significant excess was seen from that direction over the lifetime of SK.</P>
Chris Sedgwick,STEPHEN SERJEANT,CHRIS PEARSON,I. Yamamura,S. Makiuti,N. Ikeda,Y. Fukuda,S. Oyabu,T. Koga,S. Amber,Glenn J. White 한국천문학회 2017 天文學論叢 Vol.32 No.1
We have identified 22 quasars in the AKARI far-infrared all-sky Bright Source Catalogue, using a matching radius of < 10 “, and excluding matches which are close to foreground extended sources or cirrus. We have confirmed a relation between quasar optical luminosity and far-infrared luminosity which was found in an earlier study. In addition, we have found that the 11 sources which are at redshift z > 1 are magnified with respect to the predicted far-infrared luminosity, and consider this may be due to gravitational lensing. If confirmed, this would provide a new way to identify lenses; if not, we may have identified an interesting new population of extreme starbursting quasars. %We are currently seeking spectroscopic confirmation of the redshifts and improved imaging for these sources.
First study of neutron tagging with a water Cherenkov detector
The Super-Kamiokande Collaboration,Watanabe, H.,Zhang, H.,Abe, K.,Hayato, Y.,Iida, T.,Ikeda, M.,Kameda, J.,Kobayashi, K.,Koshio, Y.,Miura, M.,Moriyama, S.,Nakahata, M.,Nakayama, S.,Obayashi, Y.,Ogawa, North-Holland 2009 Astroparticle physics Vol.31 No.4
A first study of neutron tagging is conducted in Super-Kamiokande, a 50,000 ton water Cherenkov detector. The tagging efficiencies of thermal neutrons are evaluated in a 0.2% GdCl<SUB>3</SUB>-water solution and pure water. They are determined to be, respectively, 66.7% for events above 3MeV and 20% with corresponding background probabilities of 2x10<SUP>-4</SUP> and 3x10<SUP>-2</SUP>. This newly developed technique may enable water Cherenkov detectors to identify ν@?<SUB>e</SUB>'s from astrophysical sources as well as those produced by commercial reactors via the delayed coincidence scheme.