Textures of the nematic phase are threaded or Schlieren and that of the smectic phase are of the type smectic A or C. Transition temperatures and the textures were determined by an optical polarizing microscopy equipped with a heating stage. Thermal stability for smectic and nematic are 161.0 °...
5. By adjusting the positions of water molecules, the geometric structure of the cluster having minimum total energy is determined. 最后计算半胱氨酸在用偶极子代替水分子时的电子结构,调节偶极子的极矩和位置,使得以偶极子为外势的半胱氨酸和以水分子为外势的半胱氨酸的电子结构尽量接近。
This process can be paralleled with transformations between geometric shapes of objects that preserve topological invariants, like the transformation between a coffee mug and doughnut that retains the genus-one surface topology. Remarkably, this transformation is reversible when the voltage is switched off...
This definition fully agrees with the definition of geometry as the science of spatial shapes and relationships. Indeed, a figure as it is considered in geometry is a spatial shape; hence in geometry one says, for example, “sphere” and not “a body of spherical shape.” The disposition ...
Cells living in geometrically confined microenvironments are ubiquitous in various physiological processes, e.g., wound closure. However, it remains unclear whether and how spatially geometric constraints on host cells regulate bacteria-host interactions
To compare specific surface areas of different structural shapes of bodies more accurately, we can define a parameter called aspect ratio, denoted as α, as can be seen inTable 4. Consider a piece of materials with a specific volume, we can make it into a 3D sphere, a 2D circular plate...
function of thepolar angle(Fig. 9b). The second group mainly leverages CNN for direct data-driven modeling of the whole shape[81,82], thus usually enjoying better generalization to various shapes. The core principle behind them is to use image-to-image regression capability of someCNNs, ...
The dynamics of many natural systems are fundamentally constrained by their underlying structure. For instance, the shape of a drum influences its acoustic properties, the morphology of a river bed shapes underwater currents and the geometry of a protein determines the molecules with which it can ...
Immunofluorescence is the gold standard technique to determine the level and spatial distribution of fluorescent-tagged molecules. However, quantitative analysis of fluorescence microscopy images faces crucial challenges such as morphologic variability within cells. In this work, we developed an analytical str...
The method includes the steps of generating a first Delaunay complex corresponding to the first shape and a second Delaunay complex corresponding to the second shape and generating a plurality of intermediary Delaunay complexes defined by a continuous family of mixed shapes corresponding to a mixing ...