Results 111 to 120 of about 79,864 (297)
The Anatomical Record, EarlyView.Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li +12 more
wiley +1 more source
Equilibrium properties of the Skylab CMG rotation law [PDF]
The equilibrium properties of the control moment gyroscopes of the Skylab are discussed. A rotation law is developed to produce gimbal rates which distribute the angular momentum contributions among the control moment gyroscopes to avoid gimbal stop ...
Anderson, G. M., Elrod, B. D.
core +1 more source
Cryogenic gyroscope housing [PDF]
, 1973 A cryogenic gyroscope housing having gas spin-up means provided in annular discs inserted between housing shells is described. A circumferential recess in the inner edges of the discs at their juncture serves as the gas spin-up channel, and recesses in ...
Angele, W.
core +1 more source
Spin precession in a black hole and naked singularity spacetimes
, 2017 We propose here a specific criterion to address the existence or otherwise of Kerr naked singularities, in terms of the precession of the spin of a test gyroscope due to the frame dragging by the central spinning body.
Chakraborty, Chandrachur +2 more
core +1 more source
Advances in Triboelectric Nanogenerators With Rotating Structure
Carbon Energy, EarlyView.The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang +4 more
wiley +1 more source
Sensors, 2011 We extract the informative features of gyroscope signals using the discrete wavelet transform (DWT) decomposition and provide them as input to multi-layer feed-forward artificial neural networks (ANNs) for leg motion classification.
Billur Barshan, Birsel Ayrulu-Erdem
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source
Gait Event Detection during Stair Walking Using a Rate Gyroscope
Sensors, 2014 Gyroscopes have been proposed as sensors for ambulatory gait analysis and functional electrical stimulation systems. These applications often require detection of the initial contact (IC) of the foot with the floor and/or final contact or foot off (FO ...
Paola Catalfamo Formento +3 more
doaj +1 more source
FlexTech, EarlyView.A large‐area stretchable accelerometer array enables multi‐point monitoring of chest compression depth and thoracic contour reconstruction during CPR, offering high spatiotemporal resolution for dynamic deformation tracking and providing a new pathway toward intelligent, feedback‐based resuscitation systems. ABSTRACT High‐quality chest compressions are
Tianrun Xu +5 more
wiley +1 more source
Detection of Tennis Activities with Wearable Sensors
Sensors, 2019 This paper aims to design and implement a system capable of distinguishing between different activities carried out during a tennis match. The goal is to achieve the correct classification of a set of tennis strokes. The system must exhibit robustness to
Luis Benages Pardo +2 more
doaj +1 more source