Results 111 to 120 of about 46,926 (269)
Integrative Zoology, EarlyView.The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic +10 more
wiley +1 more source
MetalurgijaThe hollow slender shaft is characterized by intricate component features such as a significant depth-to-diameter ratio, variable cross-sections, and non-uniform thin walls.
Q. D. Zhang +6 more
doaj
Apparatus and method for reducing thermal stress in a turbine rotor [PDF]
, 1978 A gas turbine is described wherein the thermal stresses in the turbine rotor are reduced. The rotor includes a central disc with a peripheral rim, and a plurality of blades extending radially outward from the rim.
Heller, J. A.
core +1 more source
Progress and Poverty: Walter Rodney's Legacy
The American Journal of Economics and Sociology, EarlyView.ABSTRACT The conventional view of human progress states that the more humanity makes progress, the less poverty is entrenched. But, global development is currently characterized by a persistent combination of economic progress and growing relative poverty. This endemic inequality has puzzled economists for years.
Franklin Obeng‐Odoom
wiley +1 more source
Phantasmic Encounters in the Arctic: Haunting Materialities Beyond the Ghosts of War
Anthropology of Consciousness, EarlyView.ABSTRACT In the vast north, ghostly experiences are common for locals and outsiders alike. Here, we explore how cultural‐natural attributes, like remoteness and extreme seasonal variation, compound experiences of the haunting in visceral ways. This provides the Arctic region with an unusually pronounced baseline of other‐than‐human agency, which in the
Aki Hakonen, Oula Seitsonen
wiley +1 more source
Hydraulic In Vitro Characterization of MR‐Conditional Blood Pumps
Artificial Organs, EarlyView.Cardiac surgery in neonates requires close placement of cardiopulmonary bypass machines due to limited blood volume, complicating MR compatibility. This study introduces three MR‐conditional blood pump prototypes. None interfered with MRI imaging, though RF‐related sensor effects remain untested.
Dominik T. Schulte +6 more
wiley +1 more source
Annular supersonic decelerator or drogue Patent [PDF]
, 1963 Bluff-shaped annular configuration for supersonic decelerator for reentry ...
Connors, J. F.
core +1 more source
Archaeometry, EarlyView.ABSTRACT Morphological and morphometric analysis of archaeological animal hairs offers a nondestructive method to explore past clothing. We examined hair from two 18th‐century burial areas (SP03 and SP04) in Mazamet, France. SP03 specimens exhibited a continuous medulla, a low medullary index (0.2 ± 0.03) and cuticular features suggesting goat or ...
C. Michel +9 more
wiley +1 more source
Shock and VibrationThe impact-rubbing dynamic characteristics of the power turbine rotor with the hollow shaft and offset discs for aircraft engine are investigated, and the impact-rubbing analytical method for the complex rotor based on MDOP Timoshenko beam theory is ...
Guofang Nan +3 more
doaj +1 more source
Piezoceramics-based Devices for Active Balancing of Flexible Shafts [PDF]
, 2006 This paper focuses on vibration control of flexible shafts by means of rotorfixed piezoelectric materials. The target is to realize compact solutions for the suppression of problematic resonant vibration at so-called flexural critical speeds.
Boer, A. de, Sloetjes, P.J.
core +1 more source