期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
Re-examining Geos Neighbourhood for Its Energy Self-sustained Ability Through Ecological Footprints, Net Energy, and Life Cycle Assessment Tools
1
作者 Mengxiang HU 《Agricultural Science & Technology》 CAS 2014年第8期1384-1389,共6页
There are mounting evidences that human consume significant quantities of resources and have a major impact on the environment. Some research indicates that since the 1980s human demands on the biosphere have exceeded... There are mounting evidences that human consume significant quantities of resources and have a major impact on the environment. Some research indicates that since the 1980s human demands on the biosphere have exceeded its regen-errative capacity. One way to solve this problem is to minimize the inappropriate ex-ploitation from environment. This essay wil focus on energy self-sustained project, which is a specific way to reduce energy requirements. Energy self-sustained project refers to that energy production is equal to the amount consumed. Three concepts are quoted in the fol-lowing to assess whether the project achieve zero-energy or not. First, ecological footprint, which provides an indication of the human load on the biosphere, is uti-lized to measure the inputs and outputs of the bioregion, which is also beneficial for defining the potential energy. Another one is life cycle assessment, which evaluates environmental load that relates to the entire life periodic system of a product, is helpful to measure the products used in the energy self sustained project. In addi-tion, net energy, and gross resource abundance, definitions for selection, or hierar-chy of different energy resources, can evaluate the new energy resources in project. Geos Neighbourhood, located in colorado, was planned as the largest net-zero energy neighbourhood in the United States. To meet the energy self sustainability, earth and sun power completely sustain the community's energy needs, and re-place al fossil fuels. Compared with the traditional communities, Geos Neighbour-hood minimize the adverse impact on the environment. As tools for assessment, ecological footprint, life circle assessment, and net energy, are al used to analyse the planning and design principles in the neighbourhood. By the research, the de-sign principles and energy use in Geos Neighbourhood wil be re-examined that whether the zero energy project achieves the reduction of ecological footprint, and energy self sustainability. In addition, life circle assessment wil re-examine the ma-terials used in the community also. Final y, the concept of 'net energy' wil test solar energy and earth power which is the major energy used in Geos Neighbour-hood. 展开更多
关键词 energy self sustained Ecological footprints Net energy Life cycle assessment Geos Neiqhbourhood
下载PDF
Cosmogonic Speculations: Particle Creation from Energy Conservation in the Universe Evolution 被引量:1
2
作者 Paolo Christillin 《Journal of Modern Physics》 2016年第11期1331-1344,共14页
Information about the Universe from Hubble’s law is consistent with that coming from the evaluation of inertial forces, supporting the picture of a steady state expansion of a black hole Universe. Backed up also by t... Information about the Universe from Hubble’s law is consistent with that coming from the evaluation of inertial forces, supporting the picture of a steady state expansion of a black hole Universe. Backed up also by the consideration of the black body self energy, the post big bang temperature decrease is consistent with particle creation if energy conservation applies at every scale. This process is shown to provide a gravitational repulsive force which can counterbalance gravitational attraction thus allowing the possibility of a steady non-inflationary expansion. That seems to provide an alternative coherent scheme for our picture of the Universe evolution, disposing of the cosmological term, of dark energy and of the bulk of dark matter. 展开更多
关键词 Cosmogony Black Holes Particle Creation self energy Inertial Forces
下载PDF
From the Hubble Constant to the Black Hole Model. Universe Expansion with Matter Creation and a New Perspective on Dark Energy Observations
3
作者 Paolo Christillin 《Journal of Modern Physics》 2023年第11期1452-1457,共6页
Comparison of the Hubble parameter with cosmological quantities strongly supports the black hole model for the description of the Universe evolution. Such evolution requires matter creation and has implications for wh... Comparison of the Hubble parameter with cosmological quantities strongly supports the black hole model for the description of the Universe evolution. Such evolution requires matter creation and has implications for what is currently referred to as “dark energy” and the “cosmological constant”. 展开更多
关键词 Hubble Parameter Universe Expansion Black Hole Model Matter Creation Gravitational self energy Dark energy
下载PDF
On Our Peculiar Black Hole Universe
4
作者 Paolo Christillin 《Journal of Modern Physics》 2024年第2期179-183,共5页
The black hole model of the Universe evolution, accompanied by matter creation, already successfully accounting for many features of the past is discussed and further justified. It is once more stressed that even a ve... The black hole model of the Universe evolution, accompanied by matter creation, already successfully accounting for many features of the past is discussed and further justified. It is once more stressed that even a very large object but with a big mass is in its own right a black hole. As a consequence, the extrapolation of the past predicts for the future no big crunch, nor big bounce but a steady expansion with smaller matter density. 展开更多
关键词 Universe Expansion Black Hole Model Matter Creation Gravitational self energy
下载PDF
Two loop low temperature corrections to electron self energy
5
作者 Mahnaz Q. Haseeb Samina S. Masood 《Chinese Physics C》 SCIE CAS CSCD 2011年第7期608-611,共4页
We recalculate the two loop corrections in the background heat bath using real time formalism. The procedure of the integrations of loop momenta with dependence on finite temperature before the momenta without it has ... We recalculate the two loop corrections in the background heat bath using real time formalism. The procedure of the integrations of loop momenta with dependence on finite temperature before the momenta without it has been followed. We determine the mass and wavefunction renormalization constants in the low temperature limit of QED, for the first time with this preferred order of integrations. The correction to electron mass and spinors in this limit is important in the early universe at the time of primordial nucleosynthesis as well as in astrophysics. 展开更多
关键词 RENORMALIZATION finite temperature field theory electron self energy two-loop corrections
原文传递
Interesting QFT Problems Tackled in New Fashion
6
作者 A. Plastino M. C. Rocca 《Journal of High Energy Physics, Gravitation and Cosmology》 2020年第4期590-608,共19页
The Dimensional Regularization technique of Bollini and Giambiagi (BG) [Phys. Lett. <strong>B 40</strong>, 566 (1972);Il Nuovo Cim. <strong>B 12</strong>, 20 (1972);Phys. Rev. <strong>D 5... The Dimensional Regularization technique of Bollini and Giambiagi (BG) [Phys. Lett. <strong>B 40</strong>, 566 (1972);Il Nuovo Cim. <strong>B 12</strong>, 20 (1972);Phys. Rev. <strong>D 53</strong>, 5761 (1996)] cannot be employed for <em>all</em> Schwartz Tempered Distributions Explicitly Lorentz Invariant (STDELI) S<span style="white-space:nowrap;"><sup><span style="white-space:normal;">′</span></sup><sub style="margin-left:-7px;">L</sub></span>. We lifted such limitation in [J. Phys. Comm. <strong>2</strong> 115029 (2018)], which opens new QFT possibilities, centering in the use of STDELI that allows one to obtain a product in a ring with zero divisors. This in turn, overcomes all problems regrading QFT infinities. We provide here three examples of the application of our STDELI-extension to quantum field theory (A) the exact evaluation of an electron’s self energy to one loop, (B) the exact evaluation of QED’s vacuum polarization, and C) the <img src="Edit_a42ec50a-a738-42b3-beaa-ce9730d18cdb.png" alt="" />theory for six dimensions, that is non-renormalizable. 展开更多
关键词 Dimensional Regularization Generalization Electron self energy Vacuum Polarization Six-Dimensional Non Renormalizable λ(∅4/4!) Theory
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部