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Physical Essence of the “Predictability Barrier” 被引量:1
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作者 Li Chong-Yin Ling Jian 《Atmospheric and Oceanic Science Letters》 2009年第5期290-294,共5页
Although the "predictability barrier" is a scientific problem brought forward during the middle 1990’s,it has yet to be clearly understood.In this paper,the authors used model results to study the "pre... Although the "predictability barrier" is a scientific problem brought forward during the middle 1990’s,it has yet to be clearly understood.In this paper,the authors used model results to study the "predictability barrier" of some atmospheric (climatic) systems,including the equatorial Pacific sea surface temperature (SST),East Asia trough (EAT),and South Asia wind field (monsoon).It is shown that the "predictability barrier" appeared not only in predicting the SST in the equatorial Pacific,but also in predicting the atmospheric circulation systems,such as the EAT and the monsoon.The "predictability barrier" for predicting the different climate systems appeared not only in spring,but also in different seasons.It appeared in spring for the equatorial Pacific SST,in summer for the EAT,and in fall and winter for the monsoon.Further analyses showed that the fundamental physical essence of the "predictability barrier" is the seasonal variability characteristics of the atmospheric (climate) system.The "predictability barrier" would occur when the system was at its weakest or worst continuous phase.Furthermore,the models and error patterns also had an important impact on the "predictability barrier";good models and special error patterns can minimize the "predictability barrier". 展开更多
关键词 'predictability barrier' physical essence atmospheric(climatic)system
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On the Physical Process and Essence of the Photoelectric Effect
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作者 Weihong Qian 《Journal of Applied Mathematics and Physics》 2023年第6期1580-1597,共18页
A hundred years ago, Planck and Einstein and others created quantum theories or quantum mechanics while they explained the photoelectric effect. Planck and Einstein empirically obtained a statistical relationship betw... A hundred years ago, Planck and Einstein and others created quantum theories or quantum mechanics while they explained the photoelectric effect. Planck and Einstein empirically obtained a statistical relationship between the energy of light quantum and the frequency of light but have not studied the physical process and essence of the photoelectric effect, so some photoelectric phenomena are difficult to be explained by existing quantum mechanics currently. In this paper, a dynamical process of orthogonal interaction between a photon and an electron to form a new state of matter in photoelectric effect experiments is studied so finding that the Planck constant is a product value of the mass, length, and velocity of a high-energy particle. The dynamics of the orthogonal collision of matter (particles) can not only give the physical process and essence of the photoelectric effect, but also have great significance for the further development of quantum mechanics. It can physically explain phenomena such as wave-particle duality and quantum entanglement in the motion of high-energy particles. Its prospects can be widely used in cosmic physics, macro physics, and micro physics. 展开更多
关键词 Photoelectric Effect Planck Constant physical essence Orthogonal Collision
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