作者: 語(yǔ)源學(xué) 時(shí)間: 2025-3-22 00:14
2191-5423 e theory and observations.Allows readers to quickly find the.The book reviews theories of nucleosynthesis in big-bang cosmology. It introduces the standard model of cosmology, astronuclear reactions, numerical techniques for nucleosynethsis, and describes in detail the theories that go beyond the st作者: monopoly 時(shí)間: 2025-3-22 03:44 作者: 笨拙的我 時(shí)間: 2025-3-22 04:52
Introduction,aying cosmological term. We also introduce brane-world cosmology in a five-dimensional space-time and a modified Brans-Dicke (BD) model with a variable cosmological term. Finally, we describe the structure of the present text.作者: 誰(shuí)在削木頭 時(shí)間: 2025-3-22 10:43
Book 2018 .Although the book focuses on highly advanced topics, it is concisely written and mathematical derivations are explained step-by-step, making it accessible to graduate readers. Thus it is a short monograph appealing to a variety of readers interested in nucleosynthesis of big-bang cosmology..作者: Vertical 時(shí)間: 2025-3-22 15:09 作者: 慷慨不好 時(shí)間: 2025-3-22 19:47 作者: Engaged 時(shí)間: 2025-3-22 22:08 作者: Focus-Words 時(shí)間: 2025-3-23 02:42
Modified Brans-Dicke Theory,Big Bang nucleosynthesis (BBN) are performed with the use of the nuclear reaction network. Comparing the resultant amounts of the light elements,.He, D, and .Li, with the observed primordial abundances and using also the magnitude-redshift relation of Type Ia supernovae (SNe Ia), we derive reasonable ranges of the parameters.作者: conjunctiva 時(shí)間: 2025-3-23 08:37 作者: 注射器 時(shí)間: 2025-3-23 12:55 作者: 發(fā)誓放棄 時(shí)間: 2025-3-23 15:57
Theories Beyond the Standard Model,rd models, first we investigate a possibility that neutrinos or antineutrinos are degenerate. An excess density of neutrinos speeds up the expansion of the universe, leaving more neutrons at the onset of nucleosynthesis. In addition, degenerate electron-neutrinos shift less neutrons through .-equili作者: 高度 時(shí)間: 2025-3-23 20:41
Modified Brans-Dicke Theory,he Brans-Dicke theory modified with a variable . term which is a function of the scalar field. The fundamental equations are derived for the gravitational and scalar fields from the variational principle of the action. In the framework of the Robertson-Walker metric, we obtain the expression for the作者: Flatter 時(shí)間: 2025-3-23 22:33 作者: 猛擊 時(shí)間: 2025-3-24 06:03 作者: Infelicity 時(shí)間: 2025-3-24 09:37 作者: CODA 時(shí)間: 2025-3-24 12:56
Raman-Brillouin-Rayleigh Diffusion,We provide some useful formulas explicitly to obtain the Einstein tensor as a convenience to readers. We also establish our notation in tensor calculus.作者: miniature 時(shí)間: 2025-3-24 18:55
https://doi.org/10.1007/b106780We describe the thermal history during the stage of annihilation of electron-positron pairs. Energies of the pairs are converted into photons. We obtain the expression for the photon temperature . which deviates from the usual law .?～?.. in the expanding universe.作者: Thyroid-Gland 時(shí)間: 2025-3-24 19:18
https://doi.org/10.1007/b106780We describe a numerical method to calculate the evolution of the abundance of chemical elements. A set of differential equations are reduced to the full-implicit backward difference equations for a finite time interval. We can obtain a set of solutions without meeting numerical instability.作者: 無(wú)脊椎 時(shí)間: 2025-3-25 01:04
,Polarized Light—Laws of Reflection,We summarize physical and astronomical constants in cgs units. We also provide the conversion of peculiar units in nuclear physics and astronomy used in this book.作者: Ordnance 時(shí)間: 2025-3-25 03:54
Appendix A: Einstein Tensor,We provide some useful formulas explicitly to obtain the Einstein tensor as a convenience to readers. We also establish our notation in tensor calculus.作者: 實(shí)施生效 時(shí)間: 2025-3-25 08:25 作者: nominal 時(shí)間: 2025-3-25 15:04 作者: 代替 時(shí)間: 2025-3-25 19:00
Appendix D: Some Useful Numbers,We summarize physical and astronomical constants in cgs units. We also provide the conversion of peculiar units in nuclear physics and astronomy used in this book.作者: 無(wú)法取消 時(shí)間: 2025-3-25 21:19 作者: GROG 時(shí)間: 2025-3-26 02:41
Masa-aki Hashimoto,Riou Nakamura,Kenzo AraiOffers step-by-step derivation of mathematical formulae, to help readers follow the context quickly.Clearly explains the relation between the theory and observations.Allows readers to quickly find the作者: 笨拙的我 時(shí)間: 2025-3-26 07:07 作者: PANG 時(shí)間: 2025-3-26 09:10
Introduction to Operator Theory Iand introduce many studies on the accelerated expansion of the universe. Nonstandard approaches are also exemplified with neutrino degeneracy or a decaying cosmological term. We also introduce brane-world cosmology in a five-dimensional space-time and a modified Brans-Dicke (BD) model with a variabl作者: 清楚 時(shí)間: 2025-3-26 15:07
Archimedean Spaces and Convergence,ur universe is homogeneous and isotropic at large scales, we derive the Robertson-Walker metric and subsequently the Friedmann equation which governs the expansion of the universe. The equation is expressed in a convenient form in terms of density parameters. Next, we describe thermonuclear reaction作者: FLOAT 時(shí)間: 2025-3-26 20:08 作者: Immobilize 時(shí)間: 2025-3-26 20:57 作者: craving 時(shí)間: 2025-3-27 02:26 作者: GUMP 時(shí)間: 2025-3-27 07:43
978-981-13-2934-0The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2018作者: 騷動(dòng) 時(shí)間: 2025-3-27 09:55
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