定向图

With the constant current mode, the images of highly oriented pyrolytic graphite surface with atomic resolution have been obtained, with an anomalously large corrugation about 0.3 nm.

用恒流模式获得了高定向热解石墨具有原子级分辨率的STM形貌图，这些图象的皱折值约为0.3nm，比实际值0.07-0.1nm大得多。

In this paper, firstly, the embeddability of near-triangular graphs on the orientable surface is studied. By using Petersen's Theorem about 1-factor, we first prove that for a near-triangulation on the orientable surface, its geometry dual graph has a 1-factor; then after a procedure of operation leaded by the 1-factor, we show that if a graph G triangulates some orientable surface S_g, then G has a near-triangular embedding in S_h for h = g,g + 1,...,β(G/2」, where β is the Betti number of G. Hence we obtain a conclusion: A near-triangulation of the orientable surface is upper-embeddable. As a generalization, a class of near-quadrangulation is studied, and similar results are obtained.

本文首先研究了近三角剖分图的可定向曲面嵌入性质，通过运用Petersen关于1-因子的定理，首先证明了对于可定向曲面上的三角剖分图，其几何对偶图具有1-因子；然后在1-因子的导向下，通过做一系列增加亏格的手术，证明了如果一个图G三角剖分可定向曲面S_g，那么G可以近三角剖分可定向曲面S_h，这里h=g，g+1，…，「β(G／2」，β是指图G的Betti数，从而得出推论：可定向曲面上的三角剖分图是上可嵌入的，作为推广，又研究了一类近四角剖分图的可定向曲面嵌入性质，并得到类似的结论。

We prove that $2$-degenerate graphs, Halin graphs, graphs with maximum degree at most 3 and graphs with $d_{min} leq 1$ are fully orientable.

我们会证明所有的2-退化图、Halin图、最大度小於或等於3的图及dmin小於或等於1的图皆为可全定向的。

We establish several unique embedding results for 3-connected graphs on orientable surfaces which admit relatively large facial walks and representativity and hence generalize Thomassen's uniqueness theorem on LEW-embeddings.

本文给出了几个关于一般可定向曲面上嵌入图的唯一性定理。结果表明：一些具有大的面迹的可定向嵌入仍然具有唯一性。这在本质上推广了C.Thomassen在LEW-嵌入方面的工作。

Furthermore, we determine the nonorientable crossing number sequences of those graphs by their crossing numbers on the projective plane and the embedding technique. Then we show that the nonorientable crossing number sequence of C(10,4) is non-convex.

利用子式理论的部分结果，证明了一些循环图C(10，4)，C(9，3)，C(8，3)在射影平面上的交叉数，再利用嵌入技巧，得到了它们的不可定向交叉数序列，并证明C(10，4)的不可定向交叉数序列不是凸的。

An algorithm about picking element is presented in this paper: First,getting certain amounts of boundary points by contour tracing from a point near an element and calculating primal parameters; Then, picking the element completely by element tracing guided by these initial parameters, jumping over broken points and intersecting points; At last,deleting the picked element from the raster image and renewing other elements' information intersecting with the picked element.

本文提出一种图元拾取算法：首先从图元附近一点开始，经轮廓跟踪、参数拟合得到图元的初始参数；然后在初始参数引导下，对图元定向跟踪，跳过断点和交点，最大限度的拾取整个图元；最后在光栅图像上删除该图元，并恢复与之相交的其它图元的交点信息。

By using of signed directed graph deep knowledge model and inverse direction inference technique, the problem of on-line misoperation autodiagnosis during computer simulation training can be solved effectively.

采用符号定向图(SDG，Signed Directed Graph)深层知识模型配合反向推理方法，可以有效解决仿真训练过程中误操作实时在线自诊断问题。

Interestingly, a diluted dodecane gel of compound 2bdeposited by spin-coating on freshly cleaved HOPG leads toself-assembly of molecular fibers that follow mainly thepreferential crystallographic directions of the underlyingHOPG substrate (Figure 5c).

有趣的是，稀释┼二烷凝胶复合乙交存旋压新鲜剥离涂层导致高定向自我遵循纤维主要是分子组装底层优惠结晶方向高定向裂解石墨基板（图5c）。

In this paper, Entringers problem is extended to directed graphs and get serveral results about uniquely pancyclic digraphs.

本文将Entringer这个问题推广到定向图中，研究了唯一泛圈有向图的若干问题。

Directional Light Mapping enables the static shadowing and diffuse normal-mapped lighting of an unlimited number of lights to be precomputed and stored into a single set of texture maps, enabling very large light counts in high-performance scenes.

定向光贴图技术提供给静态光影和和扩散法线贴图光照几乎无限的灯光数量以作为预渲染或者是存储在一个单独的贴图套件中，在高精度效果场景中提供大量的灯光效果。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。