Results 71 to 80 of about 1,859,997 (304)

Co‐Occurring Non‐Cardiac Congenital Anomalies Among Cases With Congenital Heart Defects

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Cases with congenital heart defects (CHD) often have other associated anomalies. The aim of this investigation was to assess the prevalence and the types of co‐occurring anomalies in CHD in a well‐defined population. The anomalies co‐occurring with CHD were ascertained in all live births, stillbirths and terminations of pregnancy for fetal ...
Claude Stoll, Yves Alembik, Marie‐Paule Roth   +2 more
wiley   +1 more source

A novel mouse model simulating C5 palsy after cervical surgery

Animal Models and Experimental Medicine, EarlyView.
This study establishes a reliable mouse model of permanent C5 palsy (post‐laminectomy complication) via dorsal approach, selectively severing the C5 anterior nerve root while preserving the posterior root through partial C4 and C5 laminectomy. The model successfully replicates clinical C5P features—flaccid shoulder paralysis, electrophysiological ...
Chenpei Xu, Xianghe Wang, Mingjie Zhou, Chuxiang Chen, Tingzheng Jiang, Fei Wang, Kaixiang Yang, Hongli Wang, Su Jiang   +8 more
wiley   +1 more source

Digital receiver study and implementation [PDF]

Computer software was developed which makes it possible to use any general purpose computer with A/D conversion capability as a PSK receiver for low data rate telemetry processing.
Fogle, D. A., Lee, G. M., Massey, J. C.
core   +1 more source

Linear phase demodulator including a phase locked loop with auxiliary feedback loop [PDF]

, 1976
A phase modulated wave that may have no carrier power is demodulated by a phase locked loop including a phase detector for deriving an A.C. data output signal having a magnitude and a phase indicative of the phase of the modulated wave.
Rippy, R. R.
core   +1 more source

Hidden attractors in fundamental problems and engineering models

, 2015
Recently a concept of self-excited and hidden attractors was suggested: an attractor is called a self-excited attractor if its basin of attraction overlaps with neighborhood of an equilibrium, otherwise it is called a hidden attractor.
A Kuznetsov, A Pisarchik, A Sommerfeld, AB Glukhovskii, AS Pikovski, B Bao, B Pol van der, B.R. Andrievsky, B.R. Andrievsky, C Li, C Li, Chunbiao Li, D Cafagna, D Dudkowski, David Hilbert, EN Lorenz, F Tahir, G Duffing, G Leonov, G. A. LEONOV, G.A. Leonov, G.A. Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, GA Leonov, Gennady A. Leonov, Huitao Zhao, I Burkin, I.I. Blekhman, J Bernat, J Sprott, J Sprott, JULIEN CLINTON SPROTT, JWS Rayleigh, L Belyustina, M Chen, M Chen, M Shahzad, M.A. Kiseleva, M.A. Kiseleva, M.A. Kiseleva, MA Aizerman, MALIHE MOLAIE, MI Rabinovich, N.V. Kuznetsov, N.V. Kuznetsov, N.V. Kuznetsov, NE Barabanov, NV Kuznetsov, P Saha, Pooja Rani Sharma, Q Li, R. Fitts, RE Kalman, S Brezetskyi, S Jafari, S Jafari, S Nose, S Vaidyanathan, S Vaidyanathan, Sajad Jafari, Seng-Kin Lao, U Chaudhuri, V Pham, V. Semenov, VA Pliss, Viet-Thanh Pham, Viet-Thanh Pham, VO Bragin, VT Pham, VT Pham, VT Pham, VT Pham, W Hoover, WP Heath, X Wang, Xiao-Yu Dang, Y Feng, Y Feng, Y Ueda, Z Wei, Z Wei, Z Zhusubaliyev, Z Zhusubaliyev, Zhanybai T. Zhusubaliyev, Zhouchao Wei, Zhouchao Wei   +93 more
core   +1 more source

Open-loop frequency acquisition for suppressed-carrier biphase signals using one-pole arm filters [PDF]

Open loop frequency acquisition performance is discussed for suppressed carrier binary phase shift keyed signals in terms of the probability of detecting the carrier frequency offset when the arms of the Costas loop detector have one pole filters.
Holmes, J. K., Shah, B.
core   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

Advanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu, Qi Lu, Pan Hu, Yuan Zhong, Yu He, Yaojing Zhang, Young‐Ik Sohn, Yikai Su, Lu Sun   +8 more
wiley   +1 more source

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

Costas loop analysis for coherent optical receivers

Electronics Letters, 1986
The Costas loop is analysed taking both shot and laser phase noise sources into account and it is shown that to avoid large performance penalties beat linewidth to bit-rate ratios smaller than 0.05% and 0.5% are needed for PSK homodyne and heterodyne systems, respectively.
openaire   +1 more source

Costas loop lock detection in the advanced receiver [PDF]

The advanced receiver currently being developed uses a Costas digital loop to demodulate the subcarrier. Previous analyses of lock detector algorithms for Costas loops have ignored the effects of the inherent correlation between the samples of the phase ...
Hinedi, S., Mileant, A.
core   +1 more source