摘要：The visualization of the surface of biological samples using an atomic force microscope reveals features of the external relief and can resolve very fine and detailed features of the *** examined specimens from the skin of the amphibians Salamandra salamandra Linnaeus,1758,Lyciasalamandra luschani basoglui Baran&Atatür,1980 and Mesotriton alpestris Laurenti,1768,and from the surface of pollen grains of the plant species Cyclamen graecum Link,1835 and Cistus salviifolius Linnaeus,1753,which exhibit certain interesting features,imaged at the nanoscale *** is likely that the relief influences the attributes of the interfaces between the tissues and the *** found that the microsculpture increases in size the surface of the examined tissues and this might be particularly important for their performance in the *** of amphibians’skin may affect water regulation,dehydration and rehydration,and cutaneous gas *** grain relief might affect the firmness of the contact between pollen surface and water *** resolution imaging of the external relief showed that roughening might induce wetting and influence the water status of the *** addition,roughness affects the radius of water droplets retained in between the projections of the external *** of the tissues was highly correlated with their vertical distance,whereas surface distances were highly correlated with horizontal *** enabling a more detailed characterization of the external sculptures,through sophisticated techniques,a more comprehensive examination of the samples indicates similarities among different living tissues,originated from different kingdoms,which can be attributed to environmental conditions and physiological circumstances.

摘要：在多标记学习与分类中,现有邻域粗糙集特征选择算法若将样本的分类间隔作为邻域半径,则会出现分类间隔过大导致分类无意义、样本距离过大容易造成异类样本和同类样本失效,以及无法处理弱标记数据等情况。为解决这些问题,提出一种基于多标记邻域粗糙集和多标记relief的弱标记特征选择方法。首先,引入异类样本数和同类样本数来改进分类间隔,在此基础上定义邻域半径,构造新的邻域近似精度与多标记邻域粗糙集模型,并有效度量边界域引起的集合不确定性。其次,利用迭代更新权重公式填补大部分缺失标记信息,将邻域近似精度与互信息相结合,以构造新的标记相关性,填补剩余的缺失标记信息。然后,使用异类样本数和同类样本数,以构造新的标记权重和特征权重计算公式,进而提出多标记relief模型,并将其应用于多标记特征选择。最后,结合多标记邻域粗糙集模型和多标记relief算法,设计一种新的弱标记特征选择算法,以处理带有缺失标记的高维数据,并有效地提升多标记分类性能。在11个公共多标记数据集上进行仿真实验,结果验证了所提出的弱标记特征选择算法的有效性。

摘要：从relief算法的基本计算原理出发,着重研究了relief算法在数学层面上的解释及运算公式。用EXCEL中的VBA宏设计语句自动实现relief算法,得出满足定义要求的所有的特征值。并结合由40个样本组成的胃癌的原始分类数据,计算出该数据经过VBA程序运算后得到的完整的特征向量,与由其他语句编写的relief算法进行对比,为该算法的进一步改进提供一定的参考。

摘要：提出一种针对存在冗余特征的relief图像缺陷识别算法,通过确定relief图像冗余特征权值,采用衡量图像冗余特征与图像缺陷的方式,分析两者特征的关联性。并基于纹理特征,对缺陷识别算法进行最终设计。此外,设计对比实验,验证提出的图像缺陷识别算法应用到实际,可以满足对缺陷识别的需求,可实现为relief图像提供更高的保障。

摘要：In order to satisfy the increasing demand on high performance planetary transmissions, an important line of research is focused on the understanding of some of the underlying phenomena involved in this mechanical system. Through the development of models capable of reproduce the system behavior, research in this area contributes to improve gear transmission insight, helping developing better maintenance practices and more efficient design processes. A planetary gear model used for the design of profile modifications ratio based on the levelling of the load sharing ratio is presented. The gear profile geometry definition, following a vectorial approach that mimics the real cutting process of gears, is thoroughly described. Teeth undercutting and hypotrochoid definition are implicitly considered, and a procedure for the incorporation of a rounding arc at the tooth tip in order to deal with corner contacts is described. A procedure for the modeling of profile deviations is presented, which can be used for the introduction of both manufacturing errors and designed profile modifications. An easy and flexible implementation of the profile deviation within the planetary model is accomplished based on the geometric overlapping. The contact force calculation and dynamic implementation used in the model are also introduced, and parameters from a real transmission for agricultural applications are presented for the application example. A set of reliefs is designed based on the levelling of the load sharing ratio for the example transmission, and finally some other important dynamic factors of the transmission are analyzed to assess the changes in the dynamic behavior with respect to the non-modified case. Thus, the main innovative aspect of the proposed planetary transmission model is the capacity of providing a simulated load sharing ratio which serves as design variable for the calculation of the tooth profile modifications.

摘要：凸版relief第一章凸版發展史The History of relief在人類文化史中没有什么發明創造能象印刷術的發明那樣在思想史的演進過程中扮演的角色那么重要,其教化的影響力堪與當代的計算機、攝影術、大衆傳播媒介相匹敵。這最早的印刷術就是凸版印刷術即木刻。