Zigzag survey lines are frequently used in shipboard and aerial line transect surveys of animal populations. Analysis proceeds assuming that coverage probability through the survey region is uniform. We show that the two types of zigzag design that are in wide use do not generally have this property, and explore the degree of bias in abundance estimates that can be anticipated. We construct a z...

In this study, the adsorption of 4-hydroxy phenyl-azobenzene on the surface of (4, 0) zigzag open-end boron nitride nanotube (BNNT) has been investigated by quantum calculations. In order to find the preferred adsorption site, different positions and orientations were considered. The impacts of donor-acceptor electron delocalization on the structural and electronic properties and reactivity of ...

Based on atomistic simulations, the nonlinear elastic properties of monolayer graphene nanoribbons under quasistatic uniaxial tension are predicted, emphasizing the effect of edge structures (armchair and zigzag, without and with hydrogen passivation). The results of atomistic simulations are interpreted using a theoretical model of thermodynamics, which enables determination of the nonlinear f...

We propose a world-sheet realization of the zigzag-invariant strings as a perturbed WZNW model at large negative level. We argue that the gravitational dressing produces additional fixed points of the dressed renormalization beta function. One of these new critical points can be interpreted as a zigzag-invariant string model. ∗e-mail: [email protected] †e-mail: [email protected]...

Qiang Lu and Rui Huang Department of Aerospace Engineering and Engineering Mechanics, University of Texas, Austin, Texas 78712, USA ABSTRACT Based on atomistic simulations, the nonlinear elastic properties of monolayer graphene nanoribbons under quasistatic uniaxial tension are predicted, emphasizing the effect of edge structures (armchair and zigzag, without and with hydrogen passivation). T...

Based on the ε support vector regression, three modelling methods for the ship manoeuvring motion, i.e., the white-box modelling, the grey-box modelling and the black-box modelling, are investigated. The o o 10 /10 , o o 20 / 20 zigzag tests and the o 35 turning circle manoeuvre are simulated. Part of the simulation data for the o o 20 / 20 zigzag test are used to train the support vectors, and...

In the present investigation, friction spot extrusion welding was investigated for dissimilar AA2024-T3 and AA5754-O materials, under effect of three different shoulder plunge depths 0.25, 0.35 0.45 mm, keeping other parameters constant. The welded specimens were evaluated by visual inspection, optical microscopy, scanning electron backscattered diffractions, tensile testing. results revealed t...

In the title compound, C(16)H(14)N(2)O, the dihedral angle between the aromatic rings is 70.23 (6)°. The linking chain has a zigzag conformation. In the crystal, mol-ecules are linked by weak inter-molecular C-H⋯N hydrogen bonds, forming a zigzag chain along the c axis.

We define the zigzag path of a pseudo-triangulation, a concept generalizing the path of a triangulation of a point set. The pseudotriangulation zigzag path allows us to use divide-and-conquer type of approaches for suitable (i.e., decomposable) problems on pseudo-triangulations. For this we provide an algorithm that enumerates all pseudotriangulation zigzag paths (of all pseudo-triangulations o...