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Search for lepton flavor violating <sup>τ−</sup> decays with a KS0 meson
Miyazaki, Y.,Abe, K.,Abe, K.,Aihara, H.,Anipko, D.,Arinstein, K.,Aulchenko, V.,Aushev, T.,Bakich, A.M.,Barbero, M.,Bedny, I.,Belous, K.,Bitenc, U.,Bizjak, I.,Blyth, S.,Bondar, A.,Bozek, A.,Brač,k Elsevier 2006 Physics letters: B Vol.639 No.3
<P><B>Abstract</B></P><P>We have searched for the lepton flavor violating decays <SUP>τ−</SUP>→<SUP>ℓ−</SUP>KS0 (ℓ=e or <I>μ</I>), using a data sample of 281 fb<SUP>−1</SUP> collected with the Belle detector at the KEKB <SUP>e+</SUP><SUP>e−</SUP> asymmetric-energy collider. No evidence for a signal was found in either of the decay modes, and we set the following upper limits for the branching fractions: B(<SUP>τ−</SUP>→<SUP>e−</SUP>KS0)<5.6×<SUP>10−8</SUP> and B(<SUP>τ−</SUP>→<SUP>μ−</SUP>KS0)<4.9×<SUP>10−8</SUP> at the 90% confidence level. These results improve the previously published limits set by the CLEO Collaboration by factors of 16 and 19, respectively.</P>
Generalized eigenspaces of generators of evolution semigroups
Miyazaki, R.,Kim, D.,Naito, T.,Shin, J.S. Academic Press 2016 Journal of mathematical analysis and applications Vol.433 No.2
<P>A periodic evolutionary process {U(t, s)}(t >= s), with period T on a Banach space X gives an evolution semigroup with the generator L on the space of T-periodic continuous X-valued functions. We prove that the generalized eigenspaces ATL = N((alpha I - L)(n)) and Nu = N((e(alpha tau) I - U (tau,0))(n)) are isomorphic. The algebraic representation of a function u is an element of N-L, is given by the initial value u(0) = w is an element of Nu. (C) 2015 Elsevier Inc. All rights reserved.</P>
Miyazaki Takae,Moon Ju Yeon,Shin Ryoung 한국식물생명공학회 2021 Plant biotechnology reports Vol.15 No.3
Marine algae survive in a high sodium environment, however, they experience potassium deprivation in cells as a consequence. Our previous study demonstrated that genes from the marine species of macroalgae, Pyropia yezoensis, including the ammonium transporter, PyAMT1, and a β-carbonic anhydrase, PyβCA1, could complement a potassium-uptake defective Escherichia coli mutant. In the present study, various Pyropia genes were expressed in Arabidopsis to determine if Pyropia genes could enhance potassium-defciency tolerance in plants. Overexpression of PyAMT1, a nitrate transporter, PyNRT2.1, PyβCA1, and their Arabidopsis homologs in Arabidopsis, enhanced the tolerance of the transgenic plants to potassium starvation without altering potassium levels in the plants. A Pyropia coatomer gene, which is similar to the Arabidopsis coat protein complex I zeta subunit, also contributed to enhancing potassium defciency tolerance and increasing potassium accumulation in Arabidopsis. The Pyropia PyC5 gene does not have any known homologues in higher plants and lacks any known motifs or domains. PyC5-overexpressing Arabidopsis plants grew much better under potassium defciency conditions compared to control plants. Collectively, the results suggest that marine algae genes could be used as a novel source of genes to aid in the development of stress-tolerant plants.
FRT Control Method Including Islanding Detection in PCS Model for Photovoltaic Generation
Miyazaki, Takahiro,Cheng, Wai Tatt,Yoshimura, Kazuaki,Taoka, Hisao,Kawasaki, Shoji,Matsuki, Junya The Korean Institute of Electrical Engineers 2013 The Journal of International Council on Electrical Vol.3 No.3
In this study, we made experiments by the simulated PV system for understanding the cause of disconnection when instantaneous voltage sag occurs. Moreover, it is understood that the PCS with the voltage phase jump detection method which is one of the main causes of the disconnection. We modeled it in the simulation. When fault occurs, even though the residual voltage is more than 20 % and the voltage sag time is within 1.0 sec, the PCS disconnected by the voltage phase jump detection was confirmed in the simulation results. If a large number of PV systems are interconnected in the power system, we verified through the simulation that the interaction caused by the disconnection which generated by the voltage phase jump detection. We proposed threshold limit value of islanding detection. The validity of proposed method was verified through the simulation in this study.
Search for lepton-flavor-violating <i>τ</i> decay into a lepton and an <sub>f0</sub>(980) meson
Miyazaki, Y.,Adachi, I.,Aihara, H.,Arinstein, K.,Aushev, T.,Bakich, A.M.,Bay, A.,Bedny, I.,Bitenc, U.,Bondar, A.,Bozek, A.,Brač,ko, M.,Browder, T.E.,Chen, A.,Cheon, B.G.,Cho, I.-S.,Choi, Y.,Dalse Elsevier 2009 Physics letters: B Vol.672 No.4
<P><B>Abstract</B></P><P>We search for lepton-flavor-violating <I>τ</I> decays into a lepton (electron or muon) and an <SUB>f0</SUB>(980) meson using 671 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B(<SUP>τ−</SUP>→<SUP>e−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.2×<SUP>10−8</SUP> and B(<SUP>τ−</SUP>→<SUP>μ−</SUP><SUB>f0</SUB>(980))×B(<SUB>f0</SUB>(980)→<SUP>π+</SUP><SUP>π−</SUP>)<3.4×<SUP>10−8</SUP>. This is the first search performed for these modes.</P>
Miyazaki, Y.,Aihara, H.,Arinstein, K.,Aulchenko, V.,Aushev, T.,Bakich, A.M.,Balagura, V.,Barberio, E.,Bay, A.,Belous, K.,Bhardwaj, V.,Bischofberger, M.,Bondar, A.,Brač,ko, M.,Browder, T.E.,Chang, North-Holland Pub. Co 2010 Physics letters. Section B Vol.682 No.4
<P><B>Abstract</B></P><P>We search for lepton flavor and lepton number violating <I>τ</I> decays into a lepton (ℓ=electron or muon) and two charged mesons (h,<SUP>h′</SUP>=<SUP>π±</SUP> or <SUP>K±</SUP>), <SUP>τ−</SUP>→<SUP>ℓ−</SUP><SUP>h+</SUP><SUP>h′−</SUP> and <SUP>τ−</SUP>→<SUP>ℓ+</SUP><SUP>h−</SUP><SUP>h′−</SUP>, using 671 fb<SUP>−1</SUP> of data collected with the Belle detector at the KEKB asymmetric-energy <SUP>e+</SUP><SUP>e−</SUP> collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4–8.8)×<SUP>10−8</SUP> for τ→eh<SUP>h′</SUP>, and (3.3–16)×<SUP>10−8</SUP> for τ→μh<SUP>h′</SUP> processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.</P>
일본 근세 중기의 고문사 유행에 관한 재검토 : 소라이 연구를 俯瞰하여
( Miyazaki Shuta ) 우리한문학회 2014 漢文學報 Vol.30 No.-
일본사상사에서 소라이연구가 하나의 커다란 토픽이었던 것은 잘 알려져 있지만 마루야마 마사오의 오규 소라이 연구 이래 그에 대한 疑義, 反論도 또한 정착된 감이 있다. 그러나 어느 쪽도 마루야마가 설정한 틀에 따르는 것이며 그 중에서 소라이의 반근대성, 신보수주의적 요소도 지적되고 있다. 한편 문학연구에서는 그 틀에 사로잡히지 않고 요시카와 코지로, 나카무라 사치히코, 히노 다츠오 등에 의해 고문사학의 문학사적 위치설정이 이루어져왔다. 근년 고전주의적 방법에 새로운 照射가 더해져 그 의고주의가 가진 의미를 긍정적으로 평가하는 움직임이 생겼다. 저자는 그것을 문학이 원래 가지고 있는 완곡표현의 극한까지 추구한 스타일이었다는 것을 지적하고 그 의고주의가 일본의 和歌의 전통과 공통된 성격을 갖추고 있음을 고찰한다. 또한 고문사파의 이른바 격조시가 에도에서 근대에 걸쳐 열세이면서도 뿌리 깊게 살아남은 것도 지적하고 청신과 격조가 서로 대항해가며 일본의 詩史를 구성한 것으로 본다. Ogyu Sorai(荻生조徠)``s research is a big topic in Japanese thoughts, which has been fixed questions or arguments about Maruyama Masao(丸山眞男)``s research since he studied on Ogyu Sorai(荻生조徠). But Both of them follow frame of Maruyama Masao(丸山眞男) and pointed out factors of Anti-Modernity and Neo-Conservatism. Meanwhile, in literary studies, Yoshikawa Kojiro(吉川幸次郞), 中村幸彦 (Nacamura Yukihigo), and Hino Dacheuo(日野龍夫) studied on Classical Prose writings and set up place in literature history without the frame. In these years, archaism is reappraised by new methods, which is earned positive reviews. This paper points out the style employing the limit of euphemism and reveals that archaism has a common with "Waka"(和歌). Also this paper suggests that Kyeokjosi(格調詩) of Komunsapa(古文辭派) survived from the Edo to modern era and history of poetry in Japan is comprised of opposition between Fresh Poetry(淸新詩) and Kyeokjosi(格調詩).
Perpendicular Magnetic Anisotropy of (Fe, Co)-Rare Earth Amorphous alloy Films
Miyazaki,T.,Takahashi,M. 대한금속재료학회(대한금속학회) 1989 대한금속·재료학회지 Vol.27 No.3
Perpendicular magnetic anisotropy has been studied for (M_(100-x)R_x) (M = Fe, Co, R =Pr, Nd, Sm, Gd, Dy, Er) amorphous alloy films. It is found that the perpendicular magnetic anisotropy of amorphous films consists of two terms which are proportional to the content and to the square of content of rare earths. Both of these terms can be explained by a large one ion anisotropy of rare earths.