Institution
Capital Normal University
Education•Beijing, China•
About: Capital Normal University is a education organization based out in Beijing, China. It is known for research contribution in the topics: Terahertz radiation & Quantum entanglement. The organization has 11441 authors who have published 11988 publications receiving 159071 citations. The organization is also known as: Shǒudū Shīfàn Dàxué.
Topics: Terahertz radiation, Quantum entanglement, Genus, Terahertz spectroscopy and technology, Quantum state
Papers published on a yearly basis
Papers
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TL;DR: In this article, the existence and multiplicity of ground states and bound states in the Schrodinger system with large couplings is investigated. But the authors do not consider the case where the couplings are arbitrary.
Abstract: This paper concerns existence and multiplicity of ground states and bound states of the time-independent Schrodinger system 8 > > where n = 2;3, N ‚ 2, ‚j > 0 for j = 1;¢¢¢ ;N, fljj > 0 for j = 1;¢¢¢ ;N, and flij = flji. In the attractive case we give su-cient condition for existence of co-existing ground states with large couplings, and in the repulsive case we prove existence of inflnitely many co-existing bound state solutions with arbitrary couplings.
137 citations
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TL;DR: In this article, the authors analyzed the problems of vehicle lithium-ion batteries in practical applications and identified the problems that need to be solved in the future to ensure the safety, stability, and long lifetime of electric vehicles.
Abstract: Lithium-ion batteries are the primary power source in electric vehicles, and the prognosis of their remaining useful life is vital for ensuring the safety, stability, and long lifetime of electric vehicles. Accurately establishing a mechanism model of a vehicle lithium-ion battery involves a complex electrochemical process. Remaining useful life (RUL) prognostics based on data-driven methods has become a focus of research. Current research on data-driven methodologies is summarized in this paper. By analyzing the problems of vehicle lithium-ion batteries in practical applications, the problems that need to be solved in the future are identified.
136 citations
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TL;DR: Yan et al. as discussed by the authors view the centralized coded caching problem in a hypergraph perspective and show that designing a feasible placement delivery array is equivalent to constructing a linear and (6, 3)-free 3-uniform 3-partite hypergraph.
Abstract: The centralized coded caching scheme is a technique proposed by Maddah-Ali and Niesen as a method to reduce the network burden in peak times in a wireless network system. Yan et al. reformulate the problem as designing a corresponding placement delivery array and propose two new schemes from this perspective. These schemes significantly reduce the rate compared with the uncoded caching schemes. However, to implement these schemes, each file should be cut into $F$ pieces, where $F$ grows exponentially with the number of users $K$ . Such a constraint is obviously infeasible in the practical setting, especially when $K$ is large. Thus, it is desirable to design caching schemes with constant rate $R$ (independent of $K$ ) as well as smaller $F$ . In this paper, we view the centralized coded caching problem in a hypergraph perspective and show that designing a feasible placement delivery array is equivalent to constructing a linear and (6,3)-free 3-uniform 3-partite hypergraph. Several new results and constructions arise from our novel point of view. First, by using the famous (6,3)-theorem in extremal graph theory, we show that constant rate placement delivery arrays with $F$ growing linearly with $K$ do not exist. Second, we present two infinite classes of placement delivery arrays to show that constant rate caching schemes with $F$ growing sub-exponentially with $K$ do exist.
136 citations
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TL;DR: A crucial role of FHY3/FAR1 is revealed in regulating chlorophyll biosynthesis, thus uncovering a new layer of regulation by which light promotes plant dark–light transition in early seedling development.
Abstract: Successful chlorophyll biosynthesis during initial light exposure is critical for plant survival and growth, as excess accumulation of chlorophyll precursors in darkness can cause photooxidative damage to cells. Therefore, efficient mechanisms have evolved to precisely regulate chlorophyll biosynthesis in plants. Here, we identify FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and FARRED IMPAIRED RESPONSE1 (FAR1), two transposase-derived transcription factors, as positive regulators of chlorophyll biosynthesis in Arabidopsis thaliana. We show that null mutations in FHY3 and FAR1 cause reduced protochlorophyllide (a precursor of chlorophyll) levels in darkness and less photobleaching in the light. We find that FHY3 directly binds to the promoter and activates expression of HEMB1, which encodes 5-aminolevulinic acid dehydratase in the chlorophyll biosynthetic pathway. We reveal that PHYTOCHROME-INTERACTING FACTOR1 physically interacts with the DNA binding domain of FHY3, thereby partly repressing FHY3/FAR1-activated HEMB1 expression. Strikingly, FHY3 expression is upregulated by white light. In addition, our genetic data indicate that overexpression, severe reduction, or lack of HEMB1 impairs plant growth and development. Together, our findings reveal a crucial role of FHY3/FAR1 in regulating chlorophyll biosynthesis, thus uncovering a new layer of regulation by which light promotes plant dark–light transition in early seedling development.
135 citations
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National Museum of Natural History1, State University of New York at Brockport2, University of California, Merced3, Yale University4, George Washington University5, University of Helsinki6, University of Queensland7, University of Copenhagen8, University of Maryland, College Park9, Florida Museum of Natural History10, Capital Normal University11, University of California, Berkeley12, University of Maine13, University of Cincinnati14, Macquarie University15, University of Nevada, Las Vegas16, Oregon State University17, Nicolaus Copernicus University in Toruń18, University of the Witwatersrand19, University of Wisconsin-Madison20, University of Vermont21
TL;DR: Evaluating changes in plant and animal community organization over geological time by quantifying the co-occurrence structure of 359,896 unique taxon pairs in 80 assemblages spanning the past 300 million years suggests that the rules governing the assembly of communities have been changed by human activity.
Abstract: Understanding how ecological communities are organized and how they change through time is critical to predicting the effects of climate change. Recent work documenting the co-occurrence structure of modern communities found that most significant species pairs co-occur less frequently than would be expected by chance. However, little is known about how co-occurrence structure changes through time. Here we evaluate changes in plant and animal community organization over geological time by quantifying the co-occurrence structure of 359,896 unique taxon pairs in 80 assemblages spanning the past 300 million years. Co-occurrences of most taxon pairs were statistically random, but a significant fraction were spatially aggregated or segregated. Aggregated pairs dominated from the Carboniferous period (307 million years ago) to the early Holocene epoch (11,700 years before present), when there was a pronounced shift to more segregated pairs, a trend that continues in modern assemblages. The shift began during the Holocene and coincided with increasing human population size and the spread of agriculture in North America. Before the shift, an average of 64% of significant pairs were aggregated; after the shift, the average dropped to 37%. The organization of modern and late Holocene plant and animal assemblages differs fundamentally from that of assemblages over the past 300 million years that predate the large-scale impacts of humans. Our results suggest that the rules governing the assembly of communities have recently been changed by human activity.
135 citations
Authors
Showing all 11499 results
Name | H-index | Papers | Citations |
---|---|---|---|
Lei Zhang | 135 | 2240 | 99365 |
Chao Zhang | 127 | 3119 | 84711 |
Tao Zhang | 123 | 2772 | 83866 |
Bo Wang | 119 | 2905 | 84863 |
Marinus H. van IJzendoorn | 113 | 577 | 56627 |
Jing Li | 98 | 811 | 43430 |
Lei Liu | 98 | 2041 | 51163 |
Peng Zhang | 88 | 1578 | 33705 |
Di Wu | 87 | 965 | 48697 |
Xi-Cheng Zhang | 79 | 502 | 25442 |
Wei Li | 78 | 1592 | 31728 |
Gonzalo Giribet | 75 | 398 | 21000 |
Xiaoli Li | 69 | 877 | 20690 |
Mark T. Swihart | 68 | 330 | 16819 |
Kelin Wang | 68 | 328 | 16549 |