The main sources of noise and pick-ups in Alcator C-Mod are identified and their effects on the measurement and control of the vertical position are evaluated. Broadband noise may affect controllability of C-Mod plasmas at limit elongations and may become an issue with high-order controllers, therefore two applications of Kalman filters are investigated. A Kalman filter is compared to a state o...

According to the structure characteristics of railway viaduct with light floating slabs, a frequency domain dynamic model of the vehicle-light floating slab track-viaduct bridge vertical coupling system is established. The Green functions are used to quickly calculate the receptance response of the system, and then the pseudo excitation method is used to further analyze the parameter influences...

PURPOSE The aim of the study was to describe a case of globally hyperpigmented torpedo maculopathy that also contained a novel central lesion resembling a 'pseudo-lacuna'. We compare the morphology of the lesion after 5 years of follow-up. CASE PRESENTATION An asymptomatic 10-year-old Caucasian male was referred by his optometrist after having found a hyperpigmented lesion on routine dilated ...

This study intends to investigate the effects of viewing angle for horizontal and vertical axis, and contrast ratio on visual performance during TFT-LCD visual work. Two dependent measures are collected: visual acuity and search performance. The measure of minimal separable visual angel of Landolt-C is used to evaluate the visual acuity. Search performance measured by correct percentage of sear...

the aim of this paper is to generalize the‎‎notion of pseudo-almost valuation domains to arbitrary‎ ‎commutative rings‎. ‎it is shown that the classes of chained rings‎ ‎and pseudo-valuation rings are properly contained in the class of‎ ‎pseudo-almost valuation rings; also the class of pseudo-almost‎ ‎valuation rings is properly contained in the class of quasi-local‎ ‎rings with linearly ordere...

Author’s address: Dr. J. G. F. Worst, de Sav. Lohmanlaan 62, Groningen (The Netherlands) Binkhorst’s iris clip lens is fixed in the pupil by the contracting sphincter muscle. To obtain a permanent fixation the iris borders must remain in contact with the vertical pillars of the retroirideal loops of the clip lens. The patient with ‘artificial pseudo-phakia’ must therefore be kept on pilocarpine...

In this paper, we introduce the notion of a semi-slant pseudoRiemannian submersion from an indefinite almost contact 3-structure manifold onto a pseudo-Riemannian manifold. We investigate the geometry of foliations determined by horizontal and vertical distributions and provide a non-trivial example. We also find a necessary and sufficient condition for a semi-slant submersion to be totally geo...