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(
The efficiency is uniform over weak or strong serial correlation and non-stationary volatility of unknown form. The feasible estimator relies on non-parametric estimation of the volatility function, and the asymptotic theory is provided. We use the data-dependent smoothing bandwidth that can ...
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,...
What is the strength of the following correlation? 0.156 a. Weak b. Moderate c. Strong Correlation Coefficient: In statistics, the correlation coefficient states the strength of a linear relationship between two variables (the dependent variable and the independent variable). Th...
Strong Weak: Strong Weak 多货币指标同时分析 56 个货币对: AUD EUR GBP NZD CAD CHF JPY USD AUD SUMM EURAUD GBPAUD AUDNZD AUDCAD AUDCHF AUDJPY AUDUSD EUR EURAUD SUMM EURGBP - 中文
Strong Weak Heiken Ashi: ***IMPORTANT: This free indicator works with the paid for Strong Weak Forex Expert Advisor. The EA also depends on the following custom indicators - 中文
weak population coupling. Here we address this question in motor cortex of freely moving awake rats. Our primary finding is that neurons that were strongly coupled to the population were weakly related to body movement. Conversely, neurons with strong coupling to the body exhibited weak population ...
ARTICLE https://doi.org/10.1038/s41467-019-09478-2 OPEN Strong neuron-to-body coupling implies weak neuron-to-neuron coupling in motor cortex Patrick A. Kells1, Shree Hari Gautam 1, Leila Fakhraei1, Jingwen Li1 & Woodrow L. Shew 1 Cortical neurons can be strongly or weakly coupled to ...
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 (2001). ADSGoogle Scholar ...
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 ...