位运算，左移30！
// private static int a = 0; publicstaticvoidmain(String[] args){ inta =0; longstart = System.currentTimeMillis(); for(inti =0; i <1000000; i++) { a = a +1; System.out.println(i); } System.out.println(System.currentTimeMillis() - start); } 运行结果很明显,使用静态变量耗时1...
static final int DEFAULT_INITIAL_CAPACITY = 1 << 4; // aka 16 查看HashMap源码,发现这个static final int DEFAULT_INITIAL_CAPACITY = 1 << 4; 值为16。 这个是位移算法。 例如: 4<<2 4的二进制是:0000 0100 <<表示往左移两位:00 010000 只要把4转换成二进制,往左移两位,再转换成10进制得出结果...
域修饰符(public, private, protected,static,final volatile, transient的某个子集) 方法信息 jvm必须保存所有方法的以下信息,同样域信息一样包括声明顺序 方法名 方法的返回类型(或 void) 方法参数的数量和类型(有序的) 方法的修饰符(public, private, protected, static, final, synchronized, native, abstract的...
(0.08 ± 0.06, maximum value ≤ 0.17) and moderate to strong correlationrvalues (0.55 ± 0.13, minimum value ≥ 0.38) across most muscles compared to “gold standard” muscle activations (“Params”). Among unmeasured muscles, SynX exhibited superior performance for ...
The final macro-failure was generated in the loading process and the accumulative damage effect was noticeable, which led to the weakening of the capacity of the circular granite samples to resist the loads. However, loading and unloading were instantly completed under the dynamic loads. The ...
Maximal Strength Capacity Static stretching showed a small positive effect on maximal strength (d = 0.30,p < 0.001, 95% CI 0.14 to 0.46, τ²=0.01, 36 studies with 85 ES, Table1). The certainty about the evidence is low. Meta-regression showed stretching duration positively influ...
To estimate the potential influence of head motion on the functional connectivity analysis, the mean head motion (mm) and maximum head motion (mm) were assessed using frame wise displacement (FD) across resting-state and creative task fMRI data89. The values of mean FD across three fMRI sessio...
The first part of the curve (1) corresponds to the loading phase and the second part to the unloading phase (2). The maximum adhesion force Fad, is the force required to break the contact between the indenter and the finger. The green area trapped by the curve corresponds to the energy...
Due to their size, molecular properties, and methodological restraints, the limited capacity to detect numbers of proteins is a general curtailment of (phospho)proteomics studies, as well. Yet, the present observations have shown changes in the expression levels of a large number of proteins and ...