منابع مشابه
Double-Stranded Water on Stepped Platinum Surfaces.
The interaction of platinum with water plays a key role in (electro)catalysis. Herein, we describe a combined theoretical and experimental study that resolves the preferred adsorption structure of water wetting the Pt(111)-step type with adjacent (111) terraces. Double stranded lines wet the step edge forming water tetragons with dissimilar hydrogen bonds within and between the lines. Our resul...
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We investigate configurations of rational double points with the total Milnor number 21 on supersingular K3 surfaces. The complete list of possible configurations is given. As an application, we also give the complete list of extremal (quasi-)elliptic fibrations on supersingular K3 surfaces.
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We consider the union of two pants decompositions of the same orientable 2-dimensional surface of any genus g. Each pants decomposition corresponds to a handlebody bounded by this surface, so two pants decompositions correspond to a Heegaard splitting of a 3manifold. We introduce a groupoid acting on double pants decompositions. This groupoid is generated by two simple transformations (called f...
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An intelligent design method of double screen frequency selective surfaces (FSSs) is addressed in this paper. The employed unit cell is composed of two metallic screens, which are printed on both sides of a substrate. The presented non-trial-and-error approach is investigated based on the separate design of each screen. With the help of some physical intuition and an equivalent circuit model, i...
متن کاملOn Three Types of Surfaces of the Third Order Regarded as Double Surfaces of Translation
from z0 to + co, F(z) increases continually and approaches for z = + GO the limit + w/2. Hence the equation (12) has one and but one real positive root. This root being found, the equations (11), (10), and (9) yield a unique solution coQ) œv of (7) and (8), satisfying the inequality (4). Finally the values of h are z follow unambiguously from (3). The existence and uniqueness of the solution of...
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ژورنال
عنوان ژورنال: Science
سال: 1893
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-22.567.328