尺度转向

目前，国际上对于混凝土和花岗岩材料的力学性能研究已经开始从经典的宏观尺度转向更细微的细观尺度，建立了一些用于混凝土以及花岗岩的断裂过程模拟的数值模型。

At present , international investigations on the mechanical properties of concrete are beginning to transfer from the classic macroscopic mechanical level to a minor level , i.e. microscopic level , and a lot of microscopic mechanical models had been proposed .

同时提出利用局部区域一致性的原理进行特征区域的精确定位，最后，对由连续尺度空间转向离散空间中特征检测中的参数选择问题，通过实验给出了经验的参数选择方法。

The dissertation also proposes a new way to make use of local consistency in feature point localization . At last , an empiristic parameters selection solution is proposed to avoiding error caused by discrete scale space .

在土地利用变化研究由全球性尺度不断转向针对性区域尺度背景下，典型区域村庄尺度上的土地利用生态环境效应研究已成为土地利用变化研究中一个重要的方向。

Under the background of land-use change research changing from global scale to pertinence regional scale , research of land-use ecological effects on village scale of typical region had been an important direction of land – use change .