experimental reactor, a large fusion reactor that's been built in southern France. It's designed to create the first sustained nuclear fusion reaction, meaning the energy it will release is greater than the energy it will need to use to start it up. (听力 Z托福-12)您的浏览器不支持 audio...
water-saving potentialthe Western Route Projectwater resourcesBased on the meaning of water resource exploitation and utilization potential, the year of 2009 was chosen as current year, the exploitation potentials and the water-saving potentials of the Yellow River basin by the years of 2020 and ...
(Van Wijk and de Vries, 1954). In fact, both from the description and the calculation procedure, the concept is more like the pre-definition ofETo. This is the first description ofETpin agronomy, which is obviously different from the meaning ofETpcoined byThornthwaite (1948)and used ...
Chen, Y. The spatial meaning of Pareto’s scaling exponent of city- size distributions. Fractals 2014, 22, 1450001. [Google Scholar] [CrossRef] Song, W.; Chen, B.; Chen, X. Theoretical and empirical analysis of potential calculation model for rural habitat consolidation. Trans. CSAE 2008...
The relationship between potential and kinetic energy is that they can be transformed into each other. This can be explained by considering the water stored in a tank. When the tap of the tank is closed, water in the tank possesses potential energy. If the tank’s tap is opened, water wi...
We then identified water-scarce catchments based on the WSI. Two thresholds of 0.4 and 1.0 have been used to identify water-scarce areas from WSI (Supplementary Table4). While the 0.4 threshold indicates high water stress49, the threshold of 1.0 has a clearer physical meaning, i.e., that...
The physical meaning of the relativistic action‐at‐a‐distance dynamics for two particles in a canonical framework is investigated on the basis of a gene... M.,Pauri,G.,... - 《Journal of Mathematical Physics》 被引量: 55发表: 1976年 The effective direct correlation function, an approach...
where\phiis a fitting parameter. The effective electron density\rho _iis defined as a sum of the square of a pairwise functiont_{ij}which has the physical meaning corresponding to the hopping integral in tight binding model14: \begin{aligned} \rho _i = \displaystyle \sum _{j\in \{k ...
However, in this case, the public revenue is only 3.4 M€, meaning that recovering the water bank operation costs would lead to an economic inefficiency of 0.3 M€, which is less than 0.1% of the aggregated profit. Slightly more relevant is the change in social performance, since the ...
However, major cereal crops are still cultivated in climates that favour photorespiration, meaning the enhanced water and nitrogen use efficiency characteristics of the C4 pathway is an attractive breeding target for C3 crops (Mitchell and Sheehy 2006). Climate change could exacerbate this need further...