It has been proposed that spacetimes with a U (1) isometry group have contributions to the entropy from Misner strings as well as from the area of d − 2 dimensional fixed point sets. In this paper we test this proposal by constructing Taub-Nut-AdS and Taub-Bolt-AdS solutions which are examples of a new class of asymptotically locally anti-de Sitter spaces. We find that with the additional contr...

We present new results on the existence of multiple positive solutions for an elastic beam equation subject to nonlocal and nonlinear boundary conditions. Our approach is based on classical fixed point index theory. The results are joint with Paolamaria Pietramala.

The paper presents a new practical design for 4 × 1 planar switched array of dielectric filled waveguide antennas loaded with bow-tie shaped slots operating at 26.5 to 29.5 GHz 5G millimetre-wave applications. is realized as three-layered architecture, the top layer behaving radiator, bottom feed network and control circuit; common ground plane in middle layer, offering small form factor. are u...

Advancements in Sugar include 1) parameterizable netlists, 2) nonlinear frequency response analysis, 3) subnets, 4) improved MNA, 5) reduced order modeling, and 6) a more accurate nonlinear beam model. Examples of these features include the simulation of a two-axis mirror with over 10,000 degrees of freedom, the reduced order modeling applied of an electrostatic gap actuator, the parameterized ...

* Correspondence: [email protected] Department of Mathematics, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China Full list of author information is available at the end of the article Abstract This article is concerned with the existence of nontrivial solutions for a non-positive fourth-order two-point boundary value problem (BVP) and the existence of positive solutions for a s...

In this paper we investigate the cocycle actions of non-commutative Bernoulli shifts for a countable discrete group G on the AFD II1-factor N = ⊗g∈GMn(C) or ⊗g∈GR, where R is the AFD II1-factor. We show that if G contains some non-amenable exact group, then the fixed point algebra of any its cocycle action is always atomic. We also give another proof of Popa’s cocycle vanishing theorem [15] in ...

The LADARVision system utilizes a small fixed diameter excimer laser beam coupled with a high fidelity eye tracking system to perform wavefront-guided refractive surgery. The fixed small beam provides a consistent ablation per pulse. By delivering many identical pulses in a predetermined pattern, which includes an optimized custom blend zone, the laser is able to ablate complex (higher order) c...

A new argon indirect ophthalmoscopic photocoagulator is presented which uses a red helium-neon laser aiming beam. An interference filter protects the operator from green or blue-green treatment beam reflections without impairing visualisation of the aiming beam or significant retinal anatomy. The protective filter is fixed in place, eliminating the weight, noise, and potential failure of mechan...

A constitutive equation for nonlinear viscoelasticity is used to model the mechanical response of solid polymers such as polycarbonate. The nonlinearity arises from a reduced time which causes stress relaxation to accelerate with increasing strain. The constitutive equation can account for the occurrence of yield in a homogeneous uniaxial constant strain rate test. The constitutive equation is ...