Zobrazeno 1 - 10
of 2 000
pro vyhledávání: '"HATA, N."'
Autor:
Hata, N.1 hata.n@ses.usp.ac.jp, Kawamura, M.1
Publikováno v:
Advances in Horticultural Science. 2023, Vol. 37 Issue 2, p173-183. 11p.
Autor:
Yamashita, K., Hatae, R., Hiwatashi, A., Togao, O., Kikuchi, K., Momosaka, D., Yamashita, Y., Kuga, D., Hata, N., Yoshimoto, K., Suzuki, S.O., Iwaki, T., Iihara, K., Honda, H.
Publikováno v:
In Diagnostic and Interventional Imaging July-August 2019 100(7-8):411-419
Since the baryon-to-photon ratio "eta" is in some doubt at present, we ignore the constraints on eta from big bang nucleosynthesis (BBN) and fit the three key cosmological parameters (h, Omega_M, eta) to four other observational constraints: Hubble p
Externí odkaz:
http://arxiv.org/abs/astro-ph/9802317
Autor:
Shyn, P.B., Tremblay-Paquet, S., Palmer, K., Tatli, S., Tuncali, K., Olubiyi, O.I., Hata, N., Silverman, S.G.
Publikováno v:
In Clinical Radiology March 2017 72(3):223-229
Publikováno v:
Astrophys.J. 510 (1999) 564-575
Because the baryon-to-photon ratio eta_{10} is in some doubt, we drop nucleosynthetic constraints on eta_{10} and fit the three cosmological parameters (h, Omega_M, eta_{10}) to four observational constraints: Hubble parameter h_o = 0.70+-0.15, age o
Externí odkaz:
http://arxiv.org/abs/astro-ph/9708016
Autor:
Fukugita, M., Hata, N.
Publikováno v:
Astrophys.J. 499 (1998) 513-516
It is shown that the metal abundance in the solar interior is constrained from the current solar neutrino experiment, even if one allows neutrino conversion in the sun due to neutrino oscillation. The result shows that the metal abundance in the inte
Externí odkaz:
http://arxiv.org/abs/astro-ph/9706192
Publikováno v:
Phys.Rev.D55:540-547,1997
Constraints on big bang nucleosynthesis (BBN) and on cosmological parameters from conflicting deuterium observations in different high red-shift QSO systems are discussed. The high deuterium observations by Carswell et al., Songaila et al., and Ruger
Externí odkaz:
http://arxiv.org/abs/astro-ph/9603087
Autor:
Hata, N., Scherrer, R. J., Steigman, G., Thomas, D., Walker, T. P., Bludman, S., Langacker, P.
Publikováno v:
Phys.Rev.Lett.75:3977-3980,1995
A new evaluation of the constraint on the number of light neutrino species (N_nu) from big bang nucleosynthesis suggests a discrepancy between the predicted light element abundances and those inferred from observations, unless the inferred primordial
Externí odkaz:
http://arxiv.org/abs/hep-ph/9505319
Publikováno v:
Astrophys.J. 458 (1996) 637
We present new upper and lower bounds to the primordial abundances of deuterium and helium-3 based on observational data from the solar system and the interstellar medium. Independent of any model for the primordial production of the elements we find
Externí odkaz:
http://arxiv.org/abs/astro-ph/9412087
Publikováno v:
Phys.Rev.D49:3622-3625,1994
We consider the most general solar model, using the neutrino fluxes as free parameters constrained only by the solar luminosity, and show that the combined solar neutrino data exclude any astrophysical solution at 98\% C.L.\ Our best fit to the $^7$B
Externí odkaz:
http://arxiv.org/abs/hep-ph/9306212