也就是说,retain是指针拷贝,copy是内容拷贝。strong，weak用来修饰属性。strong用来修饰强引用的属性；@property(strong)SomeClass*aObject;对应原来的@property(retain)SomeClass*aObject;和@property(copy)SomeClass*aObject;weak用来修饰弱引用的属性；@property(weak)SomeClass*aObject;对应原来的@property...
The efficiency is uniform over weak or strong serial correlation and non-stationary volatility of unknown form. The feasible estimator relies on nonparametric estimation of the volatility function, and the asymptotic theory is provided. We use the data-dependent smoothing bandwidth that can automatically...
Hewson, A. CThe Kondo Problem to Heavy Fermions(Cambridge Univ. Press, 1997). Doniach, S. The Kondo lattice and weak antiferromagnetism.Physica B+C91, 231–234 (1977). ADSGoogle Scholar Stewart, G. R. Non-Fermi-liquid behavior ind- andf-electron metals.Rev. Mod. Phys.73, 797–855 (...
The EUREC4A observations therefore support recent satellite-derived constraints from observed natural variability37,40 and climate-change experiments using idealized high-resolution simulations41,42, which suggest that a weak trade cumulus feedback is more plausible than a strong one. Moreover, for the ...
Weak magnetism and non-Fermi liquids near heavy-fermion critical points. Phys. Rev. B 69, 035111 (2004). ADS Google Scholar Keimer, B., Kivelson, S. A., Norman, M. R., Uchida, S. & Zaanen, J. From quantum matter to high-temperature superconductivity in copper oxides. Nature 518,...
Therefore, the zone of destruction account cannot explain forgetting in the medium- or high-strength conditions. Discussion Here we have presented a novel analysis employing initial memory strength to watch induced forgetting unfold across weak and strong memories. We have described the results of ...
A good Operating Margin is required for a company to be able to pay for its fixed costs or payout its debt, which implies that the higher the margin, the better. This ratio is most effective in evaluating the earning potential of a company over time when comparing it against a firm's ...
A correlation greater than 0.8 is generally described as strong, whereas a correlation less than 0.5 is generally considered weak. Correlation analysis and pair trading evaluation for Magellan Midstream can also be used as hedging techniques within a particular sector or industry or even over random...
(ϑTc/T−1)is the empirical trial SC gap function41,kBis the Boltzmann constant,ϑis a parameter reflecting the correlation strength. Here, the ϒ, Г,ϑ, C, Δ(0), α, and δ are all independent fitting parameters (for their physical essence and the detailed data fitting ...
However, the theoretical explanation of this effect is contested19,20, in particular because SHH conceives one-shot cooperation as a spill-over from weak reciprocity21 and thereby neglects the importance of strong reciprocity preferences for one-shot cooperation. SHH has primarily been studied in ...