Results 21 to 30 of about 3,121 (140)
Microflow leakage through the clearance of a metal-metal seal [PDF]
, 2016 The motivation behind this study is to simulate high pressure gas flow through the clearance between a valve seat and disc when in a closed position using a representative model.
Anwar, Ali A. +4 more
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Analytical model for the prediction of pulsations in a cold-gas scale-model of a Solid Rocket Motor [PDF]
, 2018 old gas scale model experiments (1/30) demonstrate that coupling of vortex shedding with acoustic standing waves can produce pressure oscillations of the same level as observed in large Solid Rocket Motors.
Collinet, Jean +4 more
core +5 more sources
A Dominant Founder Lineage Has Possible Fitness Costs for the Endangered Mexican Grey Wolf
Molecular Ecology, Volume 35, Issue 5, March 2026.ABSTRACT The Mexican grey wolf (Canis lupus baileyi) is an endangered and genetically distinct subspecies of grey wolf adapted to the warm climates of the southwestern United States and Mexico. Following centuries of eradication efforts, Mexican grey wolves were protected under the Endangered Species Act in 1976, prompting an international ex situ ...
Yeraldi Loera +12 more
wiley +1 more source
Nanoscopic Mapping of the Extracellular Space in Amyloid Plaque‐rich Cortex
Advanced Science, Volume 13, Issue 1, 5 January 2026.The extracellular space and diffusion around amyloid plaques are examined using shadow imaging and single‐particle tracking. Increased diffusivity is found near plaques, extracellular matrix alterations, and plaque core penetrability that varies with amyloid phenotype.
Juan Estaún‐Panzano +11 more
wiley +1 more source
Precessing jets from a moving source and bright X-ray filaments in galaxy clusters
, 2005 We present hydrodynamical calculations carried out with the 3D yguazu-a code of a precessing jet model, which interacts with a plane parallel wind. This scenario describes an extragalactic jet, in which the jet source is in motion with respect to the ...
A. C. Raga +32 more
core +1 more source
Thermal Hydraulics Design and Analysis Methodology for a Solid-Core Nuclear Thermal Rocket Engine Thrust Chamber [PDF]
, 2013 Nuclear thermal propulsion is a leading candidate for in-space propulsion for human Mars missions. This chapter describes a thermal hydraulics design and analysis methodology developed at the NASA Marshall Space Flight Center, in support of the nuclear ...
Canabal, Francisco +4 more
core +3 more sources
Diversity &Inclusion Research, Volume 3, Issue 1, January 2026.ABSTRACT Our co‐authored article investigates how grassroots arts and culture organizations engage technology as a site of justice‐oriented practice. Drawing on primary‐source interviews with Canadian grassroots arts and culture organizations, we outline an EDI‐infused technological praxis we call CANTech Justice (CTJ).
Zeinab Farokhi +1 more
wiley +1 more source
Ecology and Evolution, Volume 16, Issue 1, January 2026.Wildlife tourism can benefit conservation but also causes stress in socially and cognitively complex species like Asian elephants. Using multi‐year behavioral observations in Kuiburi National Park, Thailand, we identified clear thresholds for tourism variables (e.g., vehicles, people, distance, noise) beyond which elephants exhibited increased stress ...
Brooke Friswold +7 more
wiley +1 more source
The Discovery of the Hippocampal Place Cells
Hippocampus, Volume 36, Issue 1, January 2026.ABSTRACT This paper describes the events leading up to the discovery of the place cells in 1971 for which the author received the Nobel Prize in Physiology and Medicine in 2014, together with May‐Britt and Edvard Moser. In addition, it explores some of the ideas and influences that contributed to the interpretation of that finding as evidence for the ...
John O'Keefe
wiley +1 more source
The generation of noise by the fluctuations in gas temperature into a turbine [PDF]
, 1974 An actuator disc analysis is used to calculate the pressure fluctuations produced by the convection of temperature fluctuations (entropy waves) into one or more rows of blades. The perturbations in pressure and temperature must be small, but the mean
Cumpsty, Nicholas A., Marble, F. E.
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