High voltage DC grid is developing towards more terminals and larger transmission capacity, thus the requirements for circuit breakers (DCCB) will rise. The conventional methods only use faulty line DCCB to withstand fault stress, while this paper presents a coordination method of multiple DCCBs protect system. As many adjacent are tripped interrupt current, energy shared, requirement reduced. ...

background: to evaluate safety and efficacy of percutaneous release of trigger finger in multiple digits involvement in comparison with  single digit involvement.   method: a number of 100 patients (131 fingers) were treated by percutaneous release and divided into two groups: single digit (group a) and multiple digits (group b). they were followed up for one year. success rate, pain, complicat...

in this research, first, kinematic and dynamic equations of a 4-dof 3-link robotic finger are derived using denavit-hartenberg convention and lagrange’s formulation. to model the muscles, several springs and dampers are placed between the finger links. then, two advanced controllers, namely adaptive-robust and adaptive-neural, which can control the robotic finger in presence of parametric uncer...

finger vein is one of the most fitting biometric for identifying individuals. in this paper a new method for finger vein recognition is proposed. first the veins are extracted from finger vein images by using entropy based thresholding. in finger vein images the veins are appeared as dark lines. the method extracts veins as well, but the images are noisy, that means in addition to the veins the...

finger reckoning is one of the five types of signification(dalala),which al – jahiz mentioned in his book, al–bayan wa al–tabyin . by this he meant a particular representing numbers by means of the outstretched or bent fingers and their various positions .finger reckoning can be traced in some prose and verse writings and traditional(hadith) sources; for example, in a recorded speech through wh...

The control problem for flexible-multilink robots carrying large payloads is revisited. A set of nonlinear approximate equations describing the payload-dominated dynamics of the flexible plant is used in conjunction with the passivity property satisfied by a suitably defined modified input]output pair for the system, to derive a globally asymptotically stable controller together with its adapti...

BACKGROUND AND AIM: The purpose of this study was to determine the prevalence of finger sucking habit among three-six-year-old children from kindergartens of Kerman, Iran. METHODS: This descriptive, cross-sectional study used census sampling to select 1000 children from 40 kindergartens. Data was collected by a checklist and clinical examination.  Chi-square test in SPSS16 was used for statisti...