Microsoft PowerPoint - kotake
|
|
|
- まさとし しもとり
- 5 years ago
- Views:
Transcription
1 超新星爆発メカニズムの現状 固武慶 ( 国立天文台 ) 超新星爆発とニュートリノ原子核反応 阪大 RCNP 研究会 2007 年 2 月
2 目次及び時刻表 第 1 章 Introduction (~5 分 ) 第 2 章超新星の物理 (~5 分 ) (standard supernova scenario) 第 3 章超新星爆発メカニズム最前線 (~30 分 ) Asymmetry と爆発メカニズム その1: 流体不安定性その2: 自転その3:acoustic mechanism その4: 磁場第 4 章まとめと展望
3 1.Introduction 問題意識は何?
4 Jim Wilson の爆発から およそ 20 年 リバモアシミュレーション (Wilson 1982) 鉄コア表面 ~1500km ~200km Neutrino heating
5 Neutrino heating mechanism の energetics 爆発時に開放されるエネルギー as neutrino 99% as kinetic energy 1% as radiation 0.01% 中性子星の重力エネルギー Confirmed from SN1987A 観測と一致 ニュートリノ加熱メカニズムを成功させるためには 1 パーセントのエネルギー輸送を行えれば良い 数値計算の誤差を 1% 以内に収めないといけない Supernova simulation は数値天文学の一つの grand challenge
6 Wilson の爆発後の 20 年を振り返って Surface of iron core~1000km (Wilson 1982) ~200km Neutrino heating Cardall (2006)
7 2. ごく手短な Standard Supernova Physics From gravitational collapse to the explosion
8 The fate of massive stars. Heger et al. 03 Solar metalicity metalicity Zero metalicity 10Ms 25Ms Initial stellar mass
9 Standard scenario of core-collapse SNe core collapse trapping core bounce H He C+O Si Fe SN explosion shock in envelope shock propagation in core NS
10 Standard scenario of core-collapse SNe core collapse trapping core bounce H He C+O Si Fe SN explosion shock in envelope shock propagation in core NS
11 Standard scenario of core-collapse SNe core collapse trapping core bounce H He C+O Si Fe SN explosion Stiff!! shock in envelope shock propagation in core NS
12 Bounce 付近の速度場の時間発展
13 ニュートリノ trapping の重要性 Iron core = 1.4 Ms Mch ~ 0.8(Yl/0.38)^{2}Ms Yl = Ye + Y Inner core ~ 0.8 Ms (unshocked core) Neutrino trapping のお陰で 鉄の光分解で失う熱エネルギー ~1.7 10^{51} erg /Ms が小さくてすむ
14 Neutrino Heating Mechanism (Wilson 85) Protoneutron star Neutrino Sphere 1second Delayed Explosion
15 Wilson の爆発後の 20 年を振り返って 一次元球対称モデルにおける入力物理の精密化
16 ニュートリノ + 電子非弾性散乱の効果 (Bruenn & Mezzacappa 93, 97 ~) Downscattering of high energy neutrino Mean neutrino energy neutrino Ye (bad for explosion) Rms energy of neutrino 太線 : 弾性散乱細線 : 非弾性散乱 radius
17 原子核への電子捕獲反応の見直し (Langanke et al. 03, Hix et al. 04) weak interaction coupling constant cosϑ = p p l l p p lepton momentum and energy σ CC 2 G 2π + 1 ( E ) = d( cos ) ( E E + E E ) ϑ δ i f l 1 p l E l M 2 neutrino energy initial, final nuclear energies Nuclear structure information; needed f H W i lepton traces + nuclear matrix elements Fuller,Fowler, Neuman in the 80 s 第一励起状態のみのGT 遷移を考えていた SMMC calculation by Hix et al, 02 N=40 shell closure.
18 Nuclear physics impact: changes in supernova dynamics e-capture on nuclei dominates e-capture on protons Spherical; Newtonian Reduces e-capture in outer region; Increases e-capture in interior region Shock forms deeper, but propagates farther before stalling
19 Detailed Interactions in Proto Neutron Star (PNS)
20 核子 核子間同士の nuclear interaction の効果 (e.g.,burrows&sawer 98, 99, Yamada&Toki 00) density correlation spin correlation At high density regime (~nuclear density), the scattering rate is surpressed.
21 一次元球対称モデルにおける入力物理の精密化 New sources for mu/tau neutrinos Nucleon bremmsstrahlung & Flavor changing reactions (Suzuki, 97Hannested etal 98) (Buras et al. 03,06) Standard neutrino reactions Including new neutrino reactions (Rampp et al 02) (Rampp et al 02) Still no explosions! Time after bounce Time after bounce
22 超新星コアにおける現実的状態方程式 つい最近まで 一つの状態方程式しかなかった 原子核グループの努力により 詳細な状態方程式が手に入るようになった (Lattimer & Swesty 91) (Shen Toki,Sumiyoshi, Toki 98) Shen et al. 98 (52citations, yesterday) All the major supernova groups use it.
23 詳細なニュートリノ反応の分析をまとめると ニュートリノ + 電子非弾性散乱の効果 ニュートリノの平均エネルギーが下がるので opacity も下がる Bounce 前の Ye が小さくなるので 爆発を起こすには良くないセンス 原子核への電子捕獲反応の見直し (Langanke et al 02 ~) SMMCによればN>40で Gamow-Tellar transitionがclose されない 爆発を起こすには良くないセンス 原子核同士の静電相互作用(ion-correlation), (Marek et al. 05) 核子 核子間同士の nuclear interaction の効果 (Bruenn & Mezzacappa 93, 97 ~) Neutrino opacity が下がるので PNSからのluminosity が上がり 爆発を起こすには良いセンス (Burrows & Sawyer, Yamada & Toki 98) Nucleon bremsstrahlung & Flavor changing reactions 爆発を起こすには良いセンス (Suzuki 97, Buras et al. 2003)
24 1D models, 一次元球対称モデルの現状 さまざまなグループにおける結果 AGILE-BOLTZMANN (Oak Ridge) Hydro: implicit GR Neutrino transport; 1D, Sn method (Mezzacappa & Bruenn 1993) VERTEX (MPA) Hydro; explicit Newtonian Neutrino transport: VEF method (Rampp & Janka 2002) Sumiyoshi-Yamada code (Japan) Hydro: implicit GR Neutrino: Featrier method (Yamada 97,99, Sumiyoshi et al.05,07) Shock Radius VERTEX AGILE Time Shock stalls. (Liebendoefer et al. 2003) cannot produce explosions.
25 Supernova Explosions are aspherical SN1987A
26 球対称モデルを越えて 2 超新星爆発メカニズム最前線 取り組むべき問題は 何が非対称性をつくるのか? 非対称性のニュートリノ加熱メカニズムに及ぼす効果は? (17/85)
27 多次元の効果その 1: 対流 Heating domintated Stalled shock Cooing domintated PNS ~200km ~ 100 km (Gain Radius) Heating rate &cooling rate Cooling rate ~ R^{-6} Heating rate ~ R^{-2} 10 km Stellar radius
28 対流によるニュートリノ加熱率の上昇 ショックの半径Janka&Mueller(96) Neutrino の照射時間 (s) (Janka et al. 96) 対流により shock が勢いを増している
29 多次元モデルにおけるニュートリノ輸送の扱い Type I ニュートリノ球の外側だけを解く Standing shock クーラン条件が緩いので 長いタイムスケール追える PNS 50km M L r 次元方向だけ解く ( 一例 :Scheck et al.03) 全く解かない ( その他全部 ) Type II 鉄コア全域を解く 流体二次元 マイクロ物理全部入り Boltzmann transfer but by Ray by ray で解く (2003 年 ~) 流体二次元 マイクロ物理省略 ( 後述 ) 拡散近似 (2005 年夏 ~) 流体二次元 マイクロ物理全部いり 拡散近似 (2006 年冬 ~)
30 鉄のコア全域の数値計算による対流の効果の検証 Time evolution of shock in 1D and 2D models Buras et al. ( 03, 05) 対流だけでは 十分に爆発しない ( ようだ )
31 SASI = Standing Accretion-Shock Instability Blondin et al. (02,05) Foglizzo et al, 05 Ohnishi,KK,Yamada, (06) Blondin et al. found that adding the non-radial perturbation to the stalled shock wave, Blondin et al. (02,05) In their computations, no neutrino/heating are included. We are interested whether SASI really develops in more realistic situations.
32 Contracting neutron star interior is replaced by the fixed boundary Changing the neutrino luminosity, we can systematically investigate the development of SASI. M Standing shock Basic equations Neutrino heating/cooling Bruenn (1985) Burrows et al. (01) PNS 10km L Animation!
33 radius Tangential velocity Surface of PNS Pressure perturbation Ohnishi, KK, Yamda,06
34 SASI とニュートリノ加熱メカニズムの関係 (Ohnishi, KK, Yamada 06) SASI が働くことによって ニュートリノ加熱領域が広がりより爆発に良いセンスが働く しかし スイッチが入るのに十分な luminosity がコアから放出されるかどうかは分かっていない
35 Can inelastic neutrino-nucleus scatterings lower the critical luminosities? Ohnishi, KK, Yamada (2006) Fe -> n, p PNS Haxton (1988) Preheating material at the moment of neutronization. This may be good because the Fe is dissociated before the shock-arrival. Bruenn & Haxton, (1991), Nu_e energy cannot be high for preheat the matter. Alternatively, they investigated that inelastic scatterings will help the neutrino reheating. But the result is negative due to the smaller radius at the shock-stall. The helium fraction is too small. But in the multid case, does it work?
36 Ohnishi, KK, Yamada (2006) But please note that in the panels, the heating rate is made to be 10 times larger than Haxton ( 88). Inelastic scattering will not be a pivotal factor to enhance SASI.
37 First 3D simulations of SASI Blondin & Mezzacappa (Nature, 2006)
38 Velocity fields in the equatorial plane Continue d
39 First 3D detailed simulations of SASI L=1 perturbations Iwakami, KK, Ohnishi, Yamada in prep.
40 First 3D detailed simulations of SASI Random perturbations Iwakami, KK, Ohnishi, Yamada in prep.
41 First 3D detailed simulations of SASI M= 1 perturbations Iwakami, KK, Ohnishi, Yamada in prep.
42 Random Perturbations Iwakami, KK, Ohnishi, Yamada in prep Meridian plane Equatorial plane
43 Random Perturbations Iwakami, KK, Ohnishi, Yamada in prep Velocity fields in Equatorial plane Animation!
44 Short summary: Effect of Hydrodynamic instabilities Convection enhances the neutrino heating,but only with convections, successful explosions may be difficult. (Buras et al. 2003,5) Alternatively, SASI is expected to produce the large asymmetry, and (Blondin et al. 03,05, Ohnishi, KK, Yamada. 2006) (Foglizzio et al. 06) Could be/not be the origin of the pulsar kick. Blondin & Mezzacappa (2007), Iwakami et al. in prep with realistic SN simulations
45 Another possible cause of Asymmetry :Rotation KK et al. 2003~ (39/80)
46 転軸2D rotational core-collapse simulations 水平面 Entropy の contour 自KK et al. (2003)
47 3D view of rotating model To see the combined effects of rotation and the neutrino heating mechanism, we should tackle with the Multidimensional neutrino transport problems. : 2D Multi-energy Flux-Limited Diffusion with Magnetohydrodynamics Kotake, Ohnishi, Yamada, Sato In prep
48 Code Tests in a static background Spatial distribution of mu&tau neutrinos (with each energy bin) Mu & tau neutrinos Green:MonteCarlo sim
49 Comparison with other full 1D calculations Shock wave KK et al.(05) Liebendoerfer et al ( 04) Ye Our code can also produce the 1D Boltzman Liebendoerfer calculation. et ( 04) KK et al.(05)
50 Radiation-hydrodynamical Simulations: KK et al. in prep 15 Msolar mass progenitor (Heger 00) Average energy of electron neutrino (MeV)
51 Radiation flux of electron neutrino 15 Msolar mass progenitor (Heger 00) Radiation flux is preferentially towards the pole.
52 Net heating rate (Heating cooling rate) (MeV/nuc/s) Neutrino-cooling dominated region is found to become narrower near the poles than the equators, with ~20% enhancements of net heating rate near the poles.
53 Late time evolution near PNS (~150msec after bounce)
54 Why convection occurs near equatorial plane?? Criterion for (Solberg & Hoiland) instability for rotating star, j;specific ang.mom X:distance from rotational axis Ledoux part If the convection Ledoux unstable in the vicinity Specific of equatorial plane could angular persist, we may it helpful to produce the explosion in momentum the equatorial plane. Yl Stay tuned! We are continuing the simulations. Surface of PNS
55
56 Another possible cause of Asymmetry :Acoustic Waves Burrows et al 2005~
57 2006 年 ~ 11Ms の星で ~600 msec dynamics を追って爆発 Entropy の時間発展 Acoustic driven Supernovae? ( 爆発エネルギーはいくらか不明 ~10^{50}erg?? )
58 バロウズの計算本当かいな? ( その1) Yoshida, et al. (2007) astro-ph/ Accretion with SASI modes PNS G-mode? Yoshida et al. (2007) performed an eigen mode analysis, in which a response of the PNS towards a given pressure perturbation on the surface of the PNS.
59 Yoshida, et al. (2007) astro-ph/ G-mode excitations have typical frequencies of 200~500 Hz. Input of the pressure perturbation There is a severe impedance mismatch between the typical frequency of SASI (~30Hz) and the excited g-modes (~200~500) Hz!! Data from Numerical simulations by Ohnishi et al. (2006),
60 Yoshida, et al. (2007) astro-ph/ Mode energy is at most 10^{50} erg and even smaller.
61 Burrows et al. (2006) では 10^{50} ergs.. Seems good
62 Burrows et al. (2006) では We don t know why the pulsation energy suddenly begins to rise!
63 Show us Animation!! G-mode induced calculations on surface of the PNS Standing shock M Ohnishi, KK, Yamada in prep PNS 50km L Pressure perturbations are added to the surface of PNS by hand. Left panel: Without g-mode Right panel: With g-mode (Delta P)/P = 10%
64 Another possible cause of Asymmetry :Magnetic field 超新星コア ニュートリノ KK et al. 04,05 (46/85)
65 10^16G 一般に中性子星の観測的に磁場は 10^12G ぐらい 10^14G 10^12G 最近 Soft gamma-ray repeater (SGR) Anomalous X-ray Pulsar (AXP) などの強磁場天体 (10^15G) が観測されており その Formation を研究するためにも強磁場超新星の研究は不可欠である (Zhang et al. 02) Zhang et al. 00
66 Numer of papers 磁場超新星数値計算の歴史 和達先生の退官記念講演 教訓 : 困ったときは 磁場をかけろ Sawai et al. KK et al. Ardeljan et al. Takiwaki et al. KK et al. Yamada et al. KK et al. Symbalisty et al. Ohnishi et al. Mueller & Hillebrandt Bisnovati-Kogan et al LeBlanc & Wilson 年 年
67 Magnetohydrodynamics Binitial = 10^{9} G Ωinitial = 4 rad/s
68 強磁場超新星では 磁場の巻き込みで 爆発がジェット状になる
69 The very first SRMHD numerical simulation from onset of collapse to jet propagation to the stellar surface. (Takiwaki, KK, Sato to be submitted)
70
71 爆発時間(秒どんなモデルが一番早く爆発するのか? ( 磁場を固定 ) 高速回転ほど 早く爆発 )T/W=1.0% T/W=4.0% 初期の磁場の強さ Takiwaki,KK,Sato in prep T/W=0.25% ( 回転を固定 ) 強磁場ほど 早く爆発
72 爆発の強さの比較のまとめ Takiwaki,KK,Nagataki,Sato(2005) 場( ガウス) 最大磁T/ W 弱磁場でも爆発に寄与 1% 2% 4% 爆発のエネルギー (10^50 erg) 回転 細い衝撃波爆発のエネルギー 磁場 細い衝撃波爆発のエネルギー 爆発のエネルギーは Shock Front が 1500km に達したときにエネルギーが正の部分の和 爆発は回転が弱く磁場が強いほうが強い
73 超新星研究の応用 : ガンマ線バースト中心天体の解明 BH と高速自転 強磁場が不可欠 穴あけコラプサーモデル Zhang et al. 2004, Aloy et al.2004,2002 MacFadyen & Woosley 1999 Proga et al. 2005, 2004 ジェットが出た後 極方向に密度が薄い領域ができる 密度が薄くなっている 10^5 g/cm^3 10^{15} (G) (Takiwaki, KK, Sato in prep) この穴は GRB の誕生場所として好都合? 2000km
74 Summary Why Multidimensional modeling of supernovae?? Spherical models have not produced explosion yet, although all the known microphysical process are included. But of course, ambiguity of neutrino reactions should be clarified and newly taken into account to the simulations one by one.
75 Asymmetric supernovae Convection & Hydrodynamic instability Good for enhancing neutrino heating, however, only with it, successful explosions are not obtained yet.(buras et al. 2005) Importance of SASI (Blondin et al 02, Ohnishi et al, 06) G-mode excitations inside PNS (Burrows et al,06) Rotation Rotation-induced anisotopic neutrino radiation heats the matter near the pole (KK et al. 2003, Walder et al. Convective motions may be enhanced in the vicinity of the equatorial plane. (KK et al. in prep 2007) Magnetic fields: Jet like explosions may be naturally accompanied with the magnetar s formations.(kk et al.04,bisnovayi- Kogan ) Relevance to GRBs are exciting issues..(takiwaki et at 2005, 07)
76 展望 超新星の爆発メカニズムの解明 まだ重力波天文学 多次元効果 ( 自転 磁場 流体不安定性 ) SN1987A Talk by Nakahata, Kajino,Hayakawa, Yoshida, Kawagoe,Yoshiwara ニュートリノ天文学 KK et al. 03, PRD, 04 PRD 06,07.APJ まだ マグネターガンマ線バースト第一世代星 まだ High energy neutrino 我々の狙うところは 上記の事柄を統一的に理解すること
77 Collaborators: Katsuhiko Sato (Tokyo Univ), Tomoya Takiwaki (Tokyo Univ), Hidetomo Sawai (Waseda), Yudai Suwa (Tokyo Univ.), Wakana Iwakami (Tohoku univ.), Shoichi Yamada(Waseda), Naofumi Ohnishi (Tohoku Univ.) Thank you very much!
PowerPoint Presentation
2010 KEK (Japan) (Japan) (Japan) Cheoun, Myun -ki Soongsil (Korea) Ryu,, Chung-Yoe Soongsil (Korea) 1. S.Reddy, M.Prakash and J.M. Lattimer, P.R.D58 #013009 (1998) Magnetar : ~ 10 15 G ~ 10 17 19 G (?)
ニュートリノ駆動型 超新星爆発シミュレーション ３Ｄと２Ｄの比較
2014/7/8 Joint Meeting among RESCEU-RIKEN-IPMU@RIKEN Explosion Mechanism of Core-collapse Supernovae Tomoya Takiwaki (NAOJ->RIKEN) Press Release in April There are two press release on supernovae in last
ニュートリノ駆動型 超新星爆発シミュレーション ３Ｄと２Ｄの比較
2016/01/05 宇宙の歴史をひもとく地下素粒子原子核研究 第二回超新星ニュートリノ研究会 ニュートリノ観測による超新星爆発メカニズムの探求 滝脇知也 ( 理化学研究所 ) 1 2 Three phases of supernovae Presupernova phase Burst phase Accretion phase Cooling phase Kato+2015 吉田敬さん石徹白さん
EOS EOS
EOS EOS SN1987A Crab nebula (SN1054) A.K.Mann "Shadow of a Star" From http://hubblesite.org 重力崩壊型超新星爆発 中性子星 ブラックホールの誕生 重元素の起源 rプロセス 爆発的元素合成 銀河の進化 宇宙線 ガンマ線バースト 重力波 爆発メカニズムの解明 重力崩壊 コアバウンス 3 10 Explosion
@ τ weak 1 σ weak n target v relative sec ( T 10MeV ) 2 ( σ weak 4G2 F h2 c 2 π T 2, n target ρ m u, v relative c ( τ dyn 1 0.4msec
@ 2011.12.26 τ weak 1 σ weak n target v relative 8 10 8 sec ( T 10MeV ) 2 ( σ weak 4G2 F h2 c 2 π T 2, n target ρ m u, v relative c ( τ dyn 1 0.4msec Gρ ) 1/2 ρ 10 14 g/cm 3 ) 1 ρ 10 14 g/cm 3 (T 10MeV,
1 (T 1MeV, ρ > 1 14 g/cm 3 ) τ weak τ dyn ν n ν n γ n e λ ν λ γ, λ e, λ N (neutrinosphere) 3 6 (ν e, ν e,ν µ, ν µ,ν τ, ν τ ) T < O(1MeV) = m µ n e n µ
21.3.12 @KEK H He CO ONeMg Fe Si M>8M '! " # $ % & 1 (T 1MeV, ρ > 1 14 g/cm 3 ) τ weak τ dyn ν n ν n γ n e λ ν λ γ, λ e, λ N (neutrinosphere) 3 6 (ν e, ν e,ν µ, ν µ,ν τ, ν τ ) T < O(1MeV) = m µ n e n µ,
L1 What Can You Blood Type Tell Us? Part 1 Can you guess/ my blood type? Well,/ you re very serious person/ so/ I think/ your blood type is A. Wow!/ G
L1 What Can You Blood Type Tell Us? Part 1 Can you guess/ my blood type? 当ててみて / 私の血液型を Well,/ you re very serious person/ so/ I think/ your blood type is A. えーと / あなたはとっても真面目な人 / だから / 私は ~ と思います / あなたの血液型は
takiwaki
2018/7/24 第 48 回天文 天体物理若手夏の学校 @ 豊橋 行き先は中性子星 超新星の爆発機構と天体核物理への招待 滝脇知也 ( 国立天文台理論部 ) 1 目次 1. 天体核物理としての超新星爆発 2. なぜ超新星は爆発しないのか? 3. 爆発メカニズムバトルロイヤル 4. マルチメッセンジャー観測への期待 5. まとめ 2 重力崩壊型超新星 : 星の最期? /BH 3 どうやって起こるのか?
1 r 8, , 238 N, Z 28, 50, 82, 126 r cm cm 3 1,000 1 s s slow s 8 s 2 2 s s * 1 * 2 * 3 1 N 50, 82, s * r
r 181 8588 2 21 1 e-mail: shinya.wanajo@nao.ac.jp r r r r r 1. r r r r r 1.1 r 1 10 107 1 7 1 r 8,000 300 232 235, 238 N, Z 28, 50, 82, 126 r 10 7 10 11 cm 3 10 25 cm 3 1,000 1 s s slow s 8 s 2 2 s s *
Spacecraft Propulsion Using Solar Energy Spacecraft with Magnetic Field Light from the Sun Solar Wind Thrust Mirror Solar Sail Thrust production by li
2004.3.28 物理学会シンポジウム 磁気プラズマセイル の可能性と 深宇宙探査への挑戦 宇宙航空研究開発機構 船木一幸 Spacecraft Propulsion Using Solar Energy Spacecraft with Magnetic Field Light from the Sun Solar Wind Thrust Mirror Solar Sail Thrust production
1..FEM FEM 3. 4.
008 stress behavior at the joint of stringer to cross beam of the steel railway bridge 1115117 1..FEM FEM 3. 4. ABSTRACT 1. BackgroundPurpose The occurrence of fatigue crack is reported in the joint of
T05_Nd-Fe-B磁石.indd
Influence of Intergranular Grain Boundary Phases on Coercivity in Nd-Fe-B-based Magnets Takeshi Nishiuchi Teruo Kohashi Isao Kitagawa Akira Sugawara Hiroyuki Yamamoto To determine how to increase the coercivity
Akira MIZUTA(KEK) AM, Nagataki, Aoi (ApJ, , 2011) AM + (in prep)
Akira MIZUTA(KEK) AM, Nagataki, Aoi (ApJ, 732 26, 2011) AM + (in prep) 2011.12.28 GRB GRB. ex. GRB980425/SN1998bw, GRB030329/SN2003dh XRF060218/SN2006aj. GRB091127/SN2009nz XRF100316D/SN2010bh Spectrum
untitled
masato@icrr.u-tokyo.ac.jp 996 Start 997 998 999 000 00 00 003 004 005 006 007 008 SK-I Accident Partial Reconstruction SK-II Full reconstruction ( SK-III ( ),46 (40%) 5,8 (9%),9 (40%) 5MeV 7MeV 4MeV(plan)
On the Wireless Beam of Short Electric Waves. (VII) (A New Electric Wave Projector.) By S. UDA, Member (Tohoku Imperial University.) Abstract. A new e
On the Wireless Beam of Short Electric Waves. (VII) (A New Electric Wave Projector.) By S. UDA, Member (Tohoku Imperial University.) Abstract. A new electric wave projector is proposed in this paper. The
超新星残骸Cassiopeia a と 非球対称爆発
物理学専攻 松尾康秀 宇宙物理理論 指導教員 : 橋本正章 < 超新星残骸 > 星の外層が超新星爆発により吹き飛ばされ 爆発の際の衝撃波によって周囲の物質 ( 星周物質 ) を加熱し 輝いている天体 かに星雲 Kepler Cas A http://www.spacetelescope.o rg/images/large/heic0515a.j pg http://apod.nasa.gov/apod/i
IPSJ SIG Technical Report Vol.2016-CE-137 No /12/ e β /α α β β / α A judgment method of difficulty of task for a learner using simple
1 2 3 4 5 e β /α α β β / α A judgment method of difficulty of task for a learner using simple electroencephalograph Katsuyuki Umezawa 1 Takashi Ishida 2 Tomohiko Saito 3 Makoto Nakazawa 4 Shigeichi Hirasawa
Clustering in Time and Periodicity of Strong Earthquakes in Tokyo Masami OKADA Kobe Marine Observatory (Received on March 30, 1977) The clustering in time and periodicity of earthquake occurrence are investigated
1 a b cc b * 1 Helioseismology * * r/r r/r a 1.3 FTD 9 11 Ω B ϕ α B p FTD 2 b Ω * 1 r, θ, ϕ ϕ * 2 *
448 8542 1 e-mail: ymasada@auecc.aichi-edu.ac.jp 1. 400 400 1.1 10 1 1 5 1 11 2 3 4 656 2015 10 1 a b cc b 22 5 1.2 * 1 Helioseismology * 2 6 8 * 3 1 0.7 r/r 1.0 2 r/r 0.7 3 4 2a 1.3 FTD 9 11 Ω B ϕ α B
g µν g µν G µν = 8πG c 4 T µν (1) G µν T µν G c µ ν 0 3 (1) T µν T µν (1) G µν g µν 2 (1) g µν 1 1 描
419 特集 宇宙における新しい流体力学 - ブラックホールと SASI- SASI Study of SASI in Black Hole Accretion Flows by Employing General Relativistic Compressive Hydrodynamics Hiroki NAGAKURA, Yukawa Institute for Theoretical Physics,
1401_HPCI-lecture4.SNEOS.pptx
極限物質の性質を決めるには? 超新星 : 状態方程式データテーブル 中性子星と超新星の状態方程式 中性子星 密度のみの関数 ほぼ中性子物質 ゼロ温度 冷えた中性子星 多くの状態方程式 原子核実験 中性子星質量 半径 超新星 密度だけでなく 電子の割合が変わる 有限温度 超新星爆発時 少ないデータテーブル 数値シミュレーション 中性子星合体にも 極限状態での物質の性質 状態方程式 (Equation
JAPANESE SHIP-OWNERS AND WORLD BULK MARKET BETWEEN THE TWO WORLD WARS Mariko Tatsuki Keisen University After World War I, Japanese shipping suffered for a long time from an excess of tonnage and severe
研究成果報告書
Simulation Study of Interaction between Alfvén Eigenmodes and Energetic Particles (TAE ) TAE TAE MHD ITER We studied the interaction between Alfvén eigenmodes and energetic particles in fusion plasmas
鹿大広報149号
No.149 Feb/1999 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Learned From Japanese Life and Experiences in Kagoshima When I first came to Japan I was really surprised by almost everything, the weather,
きずなプロジェクト-表紙.indd
P6 P7 P12 P13 P20 P28 P76 P78 P80 P81 P88 P98 P138 P139 P140 P142 P144 P146 P148 #1 SHORT-TERM INVITATION GROUPS 2012 6 10 6 23 2012 7 17 14 2012 7 17 14 2012 7 8 7 21 2012 7 8 7 21 2012 8 7 8 18
75 unit: mm Fig. Structure of model three-phase stacked transformer cores (a) Alternate-lap joint (b) Step-lap joint 3 4)
3 * 35 (3), 7 Analysis of Local Magnetic Properties and Acoustic Noise in Three-Phase Stacked Transformer Core Model Masayoshi Ishida Kenichi Sadahiro Seiji Okabe 3.7 T 5 Hz..4 3 Synopsis: Methods of local
H He CO ONeMg Fe Si M>8M '! " # $ % & SN1987A
s r 2008.6.16 H He CO ONeMg Fe Si M>8M '! " # $ % & SN1987A + Wilson s Delayed explosion model (Colgate 1989). Standing Accretion Shock Instability: SASI Janka et al.., 2006, 11.2M 2D weak explosion due
Author Workshop 20111124 Henry Cavendish 1731-1810 Biot-Savart 26 (1) (2) (3) (4) (5) (6) Priority Proceeding Impact factor Full paper impact factor Peter Drucker 1890-1971 1903-1989 Title) Abstract
2
2011 8 6 2011 5 7 [1] 1 2 i ii iii i 3 [2] 4 5 ii 6 7 iii 8 [3] 9 10 11 cf. Abstracts in English In terms of democracy, the patience and the kindness Tohoku people have shown will be dealt with as an exception.
Study of the "Vortex of Naruto" through multilevel remote sensing. Abstract Hydrodynamic characteristics of the "Vortex of Naruto" were investigated b
Study of the "Vortex of Naruto" through multilevel remote sensing. Abstract Hydrodynamic characteristics of the "Vortex of Naruto" were investigated based on the remotely sensed data. Small scale vortices
840 Geographical Review of Japan 73A-12 835-854 2000 The Mechanism of Household Reproduction in the Fishing Community on Oro Island Masakazu YAMAUCHI (Graduate Student, Tokyo University) This
Fig. 3 Coordinate system and notation Fig. 1 The hydrodynamic force and wave measured system Fig. 2 Apparatus of model testing
The Hydrodynamic Force Acting on the Ship in a Following Sea (1 St Report) Summary by Yutaka Terao, Member Broaching phenomena are most likely to occur in a following sea to relative small and fast craft
NO.80 2012.9.30 3
Fukuoka Women s University NO.80 2O12.9.30 CONTENTS 2 2 3 3 4 6 7 8 8 8 9 10 11 11 11 12 NO.80 2012.9.30 3 4 Fukuoka Women s University NO.80 2012.9.30 5 My Life in Japan Widchayapon SASISAKULPON (Ing)
A Nutritional Study of Anemia in Pregnancy Hematologic Characteristics in Pregnancy (Part 1) Keizo Shiraki, Fumiko Hisaoka Department of Nutrition, Sc
A Nutritional Study of Anemia in Pregnancy Hematologic Characteristics in Pregnancy (Part 1) Keizo Shiraki, Fumiko Hisaoka Department of Nutrition, School of Medicine, Tokushima University, Tokushima Fetal
22 2016 3 82 1 1
: 81 1 2 3 4 1990 2015 22 2016 3 82 1 1 83 : 2 5 84 22 2016 3 6 3 7 8 2 : 85 1 S 12 S S S S S S S S S 86 22 2016 3 S S S S S S S S 2 S S : 87 S 9 3 2 1 10 S 11 22 2016 3 88 1 : 89 1 2 3 4 90 22 2016 3
日本看護管理学会誌15-2
The Journal of the Japan Academy of Nursing Administration and Policies Vol. 15, No. 2, PP 135-146, 2011 Differences between Expectations and Experiences of Experienced Nurses Entering a New Work Environment
JOURNAL OF THE JAPANESE ASSOCIATION FOR PETROLEUM TECHNOLOGY VOL. 66, NO. 6 (Nov., 2001) (Received August 10, 2001; accepted November 9, 2001) Alterna
JOURNAL OF THE JAPANESE ASSOCIATION FOR PETROLEUM TECHNOLOGY VOL. 66, NO. 6 (Nov., 2001) (Received August 10, 2001; accepted November 9, 2001) Alternative approach using the Monte Carlo simulation to evaluate
..,,...,..,...,,.,....,,,.,.,,.,.,,,.,.,.,.,,.,,,.,,,,.,,, Becker., Becker,,,,,, Becker,.,,,,.,,.,.,,
J. of Population Problems. pp.,,,.,.,,. Becker,,.,,.,,.,,.,,,,.,,,.....,,. ..,,...,..,...,,.,....,,,.,.,,.,.,,,.,.,.,.,,.,,,.,,,,.,,, Becker., Becker,,,,,, Becker,.,,,,.,,.,.,, ,,, Becker,,., Becker,
16_.....E...._.I.v2006
55 1 18 Bull. Nara Univ. Educ., Vol. 55, No.1 (Cult. & Soc.), 2006 165 2002 * 18 Collaboration Between a School Athletic Club and a Community Sports Club A Case Study of SOLESTRELLA NARA 2002 Rie TAKAMURA
<4D6963726F736F667420506F776572506F696E74202D2089708CEA8D758DC0814091E396BC8E8C8145914F92758E8C81458C6097658E8C81458F9593AE8E8C>
英 語 特 別 講 座 代 名 詞 前 置 詞 形 容 詞 助 動 詞 #1 英 語 特 別 講 座 2010 代 名 詞 前 置 詞 形 容 詞 助 動 詞 英 語 特 別 講 座 代 名 詞 前 置 詞 形 容 詞 助 動 詞 #2 代 名 詞 日 本 語 私 あなた 彼 のうしろに は の を に のもの をつけて 使 う どこに 置 くかは 比 較 的 自 由 私 はジャスコに 行 った ジャスコに
,, 2024 2024 Web ,, ID ID. ID. ID. ID. must ID. ID. . ... BETWEENNo., - ESPNo. Works Impact of the Recruitment System of New Graduates as Temporary Staff on Transition from College to Work Naoyuki
24 Depth scaling of binocular stereopsis by observer s own movements
24 Depth scaling of binocular stereopsis by observer s own movements 1130313 2013 3 1 3D 3D 3D 2 2 i Abstract Depth scaling of binocular stereopsis by observer s own movements It will become more usual
Developement of Plastic Collocation Method Extension of Plastic Node Method by Yukio Ueda, Member Masahiko Fujikubo, Member Masahiro Miura, Member Sum
Developement of Plastic Collocation Method Extension of Plastic Node Method by Yukio Ueda, Member Masahiko Fujikubo, Member Masahiro Miura, Member Summary Previously, the authors developed the plastic
Answers Practice 08 JFD1
Practice 8 Sentence Connectors 1) I / went / to Japan / for the first time last year. At first, I didn t understand / Japanese / *at all. [ ] [ ] [ ] [ ] * 2) I m / not hungry / because I *already ate
{.w._.p7_.....\.. (Page 6)
1 1 2 1 2 3 3 1 1 8000 75007000 4 2 1493 1 15 26 5 6 2 3 5 7 17 8 1614 4 9 7000 2 5 1 1542 10 11 1592 12 1614 1596 1614 13 15691615 16 16 14 15 6 2 16 1697 17 7 1811 18 19 20 1820 21 1697 22 1 8 23 3 100
™…
Review The Secret to Healthy Long Life Decrease in Oxidative and Mental Stress My motto is Health is not all. But nothing can be done without health. Health is the most important requisite for all human
<31322D899C8CA982D982A95F985F95B65F2E696E6464>
SUMMARY Japan is one of the most earthquakeprone country in the world, and has repeatedly experienced serious major damages. No matter how serious the impact of earthquake disasters, each and every time,
揃 24 1681 0 20 40 60 80 100 0 21 42 63 84 Lag [hour] Lag [day] 35
![揃 24 1681 0 20 40 60 80 100 0 21 42 63 84 Lag [hour] Lag [day] 35](/thumbs/40/20539367.jpg "揃 24 1681 0 20 40 60 80 100 0 21 42 63 84 Lag [hour] Lag [day] 35")
Forecasting Model for Electricity Consumption in Residential House Based on Time Series Analysis * ** *** Shuhei Kondo Nobayasi Masamori Shuichi Hokoi ( 2015 7 3 2015 12 11 ) After the experience of electric
磁気測定によるオーステンパ ダクタイル鋳鉄の残留オーステナイト定量
33 Non-destructive Measurement of Retained Austenite Content in Austempered Ductile Iron Yoshio Kato, Sen-ichi Yamada, Takayuki Kato, Takeshi Uno Austempered Ductile Iron (ADI) 100kg/mm 2 10 ADI 10 X ADI
200708_LesHouches_02.ppt
Numerical Methods for Geodynamo Simulation Akira Kageyama Earth Simulator Center, JAMSTEC, Japan Part 2 Geodynamo Simulations in a Sphere or a Spherical Shell Outline 1. Various numerical methods used
5 11 3 1....1 2. 5...4 (1)...5...6...7...17...22 (2)...70...71...72...77...82 (3)...85...86...87...92...97 (4)...101...102...103...112...117 (5)...121...122...123...125...128 1. 10 Web Web WG 5 4 5 ²
H+He H+He M > 10 M He He Wolf-Rayet Minit = 13 ~ 100 M, Zinit = 0.0001 ~ 0.02 CNO SN 2007bi (Type Ic) progenitor Minit > 100 M, Zinit = 0.004 WO star? Core collapse Rotating star model Saio, Nomoto, and
Public relations brochure of Higashikawa 4 2016 April No.750 CONTENTS 3 13 15 16 20 22 23 24 25 26 28 36 37 38 2
4 2016 April No.750 Public relations brochure of Higashikawa 4 2016 April No.750 CONTENTS 3 13 15 16 20 22 23 24 25 26 28 36 37 38 2 3 5 4 7 6 9 8 11 10 12 13 14 キトウシ 森 林 公 園 シーズン イン HIGASHIKAWA TOWN NEWS
PowerPoint プレゼンテーション
() 増幅回路の周波数特性 Frequency characteristic of amplifier circuit (2) 増幅回路の周波数特性 Frequency characteristic of amplifier circuit MOS トランジスタの高周波モデル High-frequency model for MOS FET ゲート酸化膜は薄いので G-S, G-D 間に静電容量が生じる
C. S2 X D. E.. (1) X S1 10 S2 X+S1 3 X+S S1S2 X+S1+S2 X S1 X+S S X+S2 X A. S1 2 a. b. c. d. e. 2
I. 200 2 II. ( 2001) 30 1992 Do X for S2 because S1(is not desirable) XS S2 A. S1 S2 B. S S2 S2 X 1 C. S2 X D. E.. (1) X 12 15 S1 10 S2 X+S1 3 X+S2 4 13 S1S2 X+S1+S2 X S1 X+S2. 2. 3.. S X+S2 X A. S1 2
理論懇2014
Proposal for a project of high-precision stellar radial velocity work, Struve (1952)! But there seems to be no compelling reason why the hypothetical stellar planets should not, in some instances, be much
IPSJ SIG Technical Report Vol.2012-CG-148 No /8/29 3DCG 1,a) On rigid body animation taking into account the 3D computer graphics came
3DCG 1,a) 2 2 2 2 3 On rigid body animation taking into account the 3D computer graphics camera viewpoint Abstract: In using computer graphics for making games or motion pictures, physics simulation is
IHIMU Energy-Saving Principle of the IHIMU Semicircular Duct and Its Application to the Flow Field Around Full Scale Ships IHI GHG IHIMU CFD PIV IHI M
IHIMU Energy-Saving Principle of the IHIMU Semicircular Duct and Its Application to the Flow Field Around Full Scale Ships IHI GHG IHIMU PIV IHI Marine United Inc. ( IHIMU ) has already developed several
:- Ofer Feldman,Feldman : -
- -- E-mail: nkawano@hiroshima-u.ac.jp : - :- Ofer Feldman,Feldman : - : : : Mueller : - Mueller :.. : ... :........ .. : : : - : Kawano & Matsuo: - : - : - : : No. Feldman, Ofer (), The Political
6 4 45 7ZS 5 59 7 8 94 05 4 5 6 4 5 5 6 8 8 40 45 48 56 60 64 66 66 68 7 78 80 8 7 8 0 0 0 90 0 57 64 69 66 66 69 0 4 4 4 4 4 0 7 48 5 4 4 5 4 4 4 7 46 46 6 46 8 46 48 46 46 4 46 46 4 4 5 4 6 4 9 9 0
０
Speedy & Simple Kenji, Yoshio, and Goro are good at English. They have their ways of learning. Kenji often listens to English songs and tries to remember all the words. Yoshio reads one English book every
Quantitative Relationship between SAR and Temperature Rise inside Eyeball in a Realistic Human Head Model for 1.5 GHz-Microwave Exposure Kiyofumi Taka
Quantitative Relationship between SAR and Temperature Rise inside Eyeball in a Realistic Human Head Model for 1.5 GHz-Microwave Exposure Kiyofumi Takai, Non-member, Osamu Fujiwara, Member (Nagoya Institute
Title < 論文 > 公立学校における在日韓国 朝鮮人教育の位置に関する社会学的考察 : 大阪と京都における 民族学級 の事例から Author(s) 金, 兌恩 Citation 京都社会学年報 : KJS = Kyoto journal of so 14: 21-41 Issue Date 2006-12-25 URL http://hdl.handle.net/2433/192679 Right
10 11 12 33.4 1 open / window / I / shall / the? 79.3 2 something / want / drink / I / to. 43.5 3 the way / you / tell / the library / would / to / me
-1- 10 11 12 33.4 1 open / window / I / shall / the? 79.3 2 something / want / drink / I / to. 43.5 3 the way / you / tell / the library / would / to / me? 28.7 4 Miyazaki / you / will / in / long / stay
220 28;29) 30 35) 26;27) % 8.0% 9 36) 8) 14) 37) O O 13 2 E S % % 2 6 1fl 2fl 3fl 3 4
Vol. 12 No. 2 2002 219 239 Λ1 Λ1 729 1 2 29 4 3 4 5 1) 2) 3) 4 6) 7 27) Λ1 701-0193 288 219 220 28;29) 30 35) 26;27) 0 6 7 12 13 18 59.9% 8.0% 9 36) 8) 14) 37) 1 1 1 13 6 7 O O 13 2 E S 1 1 17 0 6 1 585
ON A FEW INFLUENCES OF THE DENTAL CARIES IN THE ELEMENTARY SCHOOL PUPIL BY Teruko KASAKURA, Naonobu IWAI, Sachio TAKADA Department of Hygiene, Nippon Dental College (Director: Prof. T. Niwa) The relationship
I N S T R U M E N T A T I O N & E L E C T R I C A L E Q U I P M E N T Pressure-resistant gasket type retreat method effective bulk compressibility Fro
Cable Gland This is the s to use for Cable Wiring in the hazardous location. It is much easier to install and maintenance and modification compared with Conduit Wiring with Sealing Fitting. The Standard
;~ (Summary) The Study on the Effects of Foot Bathing on Urination Kumiko Toyoda School of Human Nursing, University of Shiga Prefecture Background Foot bathing is one of the important nursing care for
1 ( 8:12) Eccles. 1:8 2 2
1 http://www.hyuki.com/imit/ 1 1 ( 8:12) Eccles. 1:8 2 2 3 He to whom it becomes everything, who traces all things to it and who sees all things in it, may ease his heart and remain at peace with God.
3_23.dvi
Vol. 52 No. 3 1234 1244 (Mar. 2011) 1 1 mixi 1 Casual Scheduling Management and Shared System Using Avatar Takashi Yoshino 1 and Takayuki Yamano 1 Conventional scheduling management and shared systems
京都大学防災研究所年報第 60 号 A 平成 29 年 DPRI Annuals, No. 60 A, 2017 Generating Process of the 2016 Kumamoto Earthquake Yoshihisa IIO Synopsis The 2016 Kumamoto e
京都大学防災研究所年報第 60 号 A 平成 29 年 DPRI Annuals, No. 60 A, 2017 Generating Process of the 2016 Kumamoto Earthquake Yoshihisa IIO Synopsis The 2016 Kumamoto earthquake is a large intraplate earthquake that broke
CONTENTS 3 5 6 8 9 10 11 12 18 19 20 Public relations brochure of Higashikawa 3 2016 March No.749 2
3 2016 March No.749 CONTENTS 3 5 6 8 9 10 11 12 18 19 20 Public relations brochure of Higashikawa 3 2016 March No.749 2 HIGASHIKAWA TOWN NEWS 3 HIGASHIKAWA TOWN NEWS 4 5 93 93 7 6 DVD 8 Nature Column N
BH BH BH BH Typeset by FoilTEX 2
GR BH BH 2015.10.10 BH at 2015.09.07 NICT 2015.05.26 Typeset by FoilTEX 1 BH BH BH BH Typeset by FoilTEX 2 1. BH 1.1 1 Typeset by FoilTEX 3 1.2 2 A B A B t = 0 A: m a [kg] B: m b [kg] t = t f star free
Gravothermal Catastrophe & Quasi-equilibrium Structure in N-body Systems
2004/3/1 3 N 1 Antonov Problem & Quasi-equilibrium State in N-body N Systems A. Taruya (RESCEU, Univ.Tokyo) M. Sakagami (Kyoto Univ.) 2 Antonov problem N-body study of quasi-attractivity M15 T Antonov
ALT : Hello. May I help you? Student : Yes, please. I m looking for a white T-shirt. ALT : How about this one? Student : Well, this size is good. But do you have a cheaper one? ALT : All right. How about
Microsoft PowerPoint - TominagaHokudai.ppt [互換モード]
![Microsoft PowerPoint - TominagaHokudai.ppt [互換モード]](/thumbs/104/161778573.jpg "Microsoft PowerPoint - TominagaHokudai.ppt [互換モード]")
2 nd Mar 2011 恒星進化 星形成から探る銀河の形成 進化の研究宇宙最初の星から太陽系形成まで Fe Si NS/BH Massive Star (>10M ) e - -capture SNe (8-10M ) O C He H SN Ic SN Ib SN II Temp [10 8 K] 0.2 1.5 7 15 30 40 50 Burning Stage H He C Ne
The Effect of the Circumferential Temperature Change on the Change in the Strain Energy of Carbon Steel during the Rotatory Bending Fatigue Test by Ch
The Effect of the Circumferential Temperature Change on the Change in the Strain Energy of Carbon Steel during the Rotatory Bending Fatigue Test by Chikara MINAMISAWA, Nozomu AOKI (Department of Mechanical
Housing Purchase by Single Women in Tokyo Yoshilehl YUI* Recently some single women purchase their houses and the number of houses owned by single women are increasing in Tokyo. And their housing demands
2 ( ) i
25 Study on Rating System in Multi-player Games with Imperfect Information 1165069 2014 2 28 2 ( ) i ii Abstract Study on Rating System in Multi-player Games with Imperfect Information Shigehiko MORITA
206“ƒŁ\”ƒ-fl_“H„¤‰ZŁñ
51 206 51 63 2007 GIS 51 1 60 52 2 60 1 52 3 61 2 52 61 3 58 61 4 58 Summary 63 60 20022005 2004 40km 7,10025 2002 2005 19 3 19 GIS 2005GIS 2006 2002 2004 GIS 52 2062007 1 2004 GIS Fig.1 GIS ESRIArcView
The Japanese economy in FY2015 suffered from sluggish growth in individual consumption, while the foreign exchange market remained unstable with high volatility. Even in such an economic environment, MSF
はじめに
IT 1 NPO (IPEC) 55.7 29.5 Web TOEIC Nice to meet you. How are you doing? 1 type (2002 5 )66 15 1 IT Java (IZUMA, Tsuyuki) James Robinson James James James Oh, YOU are Tsuyuki! Finally, huh? What's going
A comparison of abdominal versus vaginal hysterectomy for leiomyoma and adenomyosis Kenji ARAHORI, Hisasi KATAYAMA, Suminori NIOKA Department of Obstetrics and Gnecology, National Maizuru Hospital,Kyoto,
Optical Lenses CCD Camera Laser Sheet Wind Turbine with med Diffuser Pitot Tube PC Fig.1 Experimental facility. Transparent Diffuser Double Pulsed Nd:
*1 *2 *3 PIV Measurement of Field of the Wind Turbine with a med Diffuser Kazuhiko TOSHIMITSU *4, Koutarou NISHIKAWA and Yuji OHYA *4 Department of Mechanical Engineering, Matsue National Collage of Technology,
Title 生活年令による学級の等質化に関する研究 (1) - 生活年令と学業成績について - Author(s) 与那嶺, 松助 ; 東江, 康治 Citation 研究集録 (5): 33-47 Issue Date 1961-12 URL http://hdl.handle.net/20.500.12000/ Rights 46 STUDIES ON HOMOGENEOUS
Page 1 of 6 B (The World of Mathematics) November 20, 2006 Final Exam 2006 Division: ID#: Name: 1. p, q, r (Let p, q, r are propositions. ) (10pts) (a
Page 1 of 6 B (The World of Mathematics) November 0, 006 Final Exam 006 Division: ID#: Name: 1. p, q, r (Let p, q, r are propositions. ) (a) (Decide whether the following holds by completing the truth
The Evaluation on Impact Strength of Structural Elements by Means of Drop Weight Test Elastic Response and Elastic Limit by Hiroshi Maenaka, Member Sh
The Evaluation on Impact Strength of Structural Elements by Means of Drop Weight Test Elastic Response and Elastic Limit by Hiroshi Maenaka, Member Shigeru Kitamura, Member Masaaki Sakuma Genya Aoki, Member
Mikio Yamamoto: Dynamical Measurement of the E-effect in Iron-Cobalt Alloys. The AE-effect (change in Young's modulus of elasticity with magnetization
Mikio Yamamoto: Dynamical Measurement of the E-effect in Iron-Cobalt Alloys. The AE-effect (change in Young's modulus of elasticity with magnetization) in the annealed state of iron-cobalt alloys has been
Z B- B- PHP - - [ ] PHP New York Times, December,,. The origins of the Japan-U.S. War and Adm. Isoroku Yamamoto Katsuhiko MATSUKAWA Abstract There are huge amount of studies concerning the origins
Kyushu Communication Studies 第２号
Kyushu Communication Studies. 2004. 2:1-11 2004 How College Students Use and Perceive Pictographs in Cell Phone E-mail Messages IGARASHI Noriko (Niigata University of Health and Welfare) ITOI Emi (Bunkyo
橡
Mein Grad. Eng Univ. Fri'kill, Vol. 61 March 20 I 3) Effects of Saline-Water Volume on Production Performance of Tubular Solar Still Hiroaki TERASAKI*, Takahiro YAMAJI" and Teruyuki FUKUHARA. (Received
日立金属技報 Vol.34
Influence of Misorientation Angle between Adjacent Grains on Magnetization Reversal in Nd-Fe-B Sintered Magnet Tomohito Maki Rintaro Ishii Mitsutoshi Natsumeda Takeshi Nishiuchi Ryo Uchikoshi Masaaki Takezawa
,
, The Big Change of Life Insurance Companies in Japan Hisayoshi TAKEDA Although the most important role of the life insurance system is to secure economic life of the insureds and their
A5 PDF.pwd
DV DV DV DV DV DV 67 1 2016 5 383 DV DV DV DV DV DV DV DV DV 384 67 1 2016 5 DV DV DV NPO DV NPO NPO 67 1 2016 5 385 DV DV DV 386 67 1 2016 5 DV DV DV DV DV WHO Edleson, J. L. 1999. The overlap between
LC304_manual.ai
Stick Type Electronic Calculator English INDEX Stick Type Electronic Calculator Instruction manual INDEX Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union
Vol.-ICS-6 No.3 /3/8 Input.8.6 y.4 Fig....5 receptive field x 3 w x y Machband w(x =
DOG(Difference of two Gaussians 8 A feedback model for the brightness illusion Shoji Nodasaka and Asaki Saito We consider mechanism of the Hermann grid. The mechanism is usually explained by effects of
Microsoft PowerPoint - hoshino_part1.pptx
天体プラズマにおける粒子加速機構 無衝突系粒子シミュレーション 星野真弘理学系研究科 地惑惑星科学専攻 内容 ** PIC (Particle In Cell) シミュレーション ** プラズマ輸送係数の研究 (MHD では現象論的に扱う粘性 電気抵抗 熱伝導に関わる物理 ) 非熱的プラズマ ( 局所的熱平衡ではない物理 ) 電子とイオンのエネルギー分配 宇宙での高エネルギー粒子の観測 数値チェレンコフ問題
041-057_’¼Œì
542012 4157 Nishino Toshiaki The purpose of this paper is to analyze the present conditions of the mountain villages of Japan in the early 21 st century. The revolution of fuel sources from a predominance
untitled
The Joint Class between Japanese Learners and Japanese Students What we can see from the Comments Akemi YASUI Abstract The purpose of this paper is to report the results of the joint class between 20 intermediate-advanced
Motivation and Purpose There is no definition about whether seatbelt anchorage should be fixed or not. We tested the same test conditions except for t
Review of Seatbelt Anchorage and Dimensions of Test Bench Seat Cushion JASIC Motivation and Purpose There is no definition about whether seatbelt anchorage should be fixed or not. We tested the same test