Results 71 to 80 of about 75,854 (285)

Genetics of infertility and “assisted fertilization” in the Bible: The case of Abraham and his family

open access: yesAndrology, EarlyView.
Abstract Couple infertility is a very ancient medical condition. One of the first descriptions of familial infertility/subfertility is contained in the first book of the Bible, Genesis, written in the 10th century BC and reporting tales from the oral tradition even occurred about 800 years earlier.
Manuela Simoni   +2 more
wiley   +1 more source

Phantasmic Encounters in the Arctic: Haunting Materialities Beyond the Ghosts of War

open access: yesAnthropology 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

Analytical study of lightweight acoustic shrouds for shuttle experiments and payloads [PDF]

open access: yes
Results are presented of acoustic tests performed on an STS payload shroud simulator to determine the effects of a helium filled liner on the noise reduction characteristics.
Baratono, J., Rader, P.
core   +1 more source

High speed rotor assembly shroud [PDF]

open access: yes, 2006
An improved rotor assembly shroud includes at least one reinforcing flange on the upper surface of the shroud. The strength provided by the reinforcing flange allows for a smaller shroud thickness resulting in a net reduction of shroud mass.
Grota, Steven P.   +3 more
core   +1 more source

Morphological and Morphometric Analysis of Animal Hair From 18th Century Burial Sites in Mazamet (Southwest France)

open access: yesArchaeometry, 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

Energy efficient engine high pressure turbine ceramic shroud support technology report [PDF]

open access: yes
This work represents the development and fabrication of ceramic HPT (high pressure turbine) shrouds for the Energy Efficient Engine (E3). Details are presented covering the work performed on the ceramic shroud development task of the NASA/GE Energy ...
Carlson, R. G., Nelson, W. A.
core   +1 more source

Sensing the sky's edge: Atmospheric insights into the Korean demilitarised zone

open access: yesArea, EarlyView.
Short Abstract In this paper, I demonstrate that novel and creative ‘atmospheric methods’ not only provide us with a means of overcoming difficulties around access to border spaces, but also more importantly afford us new insights into how atmospherically attuned things and the materialities of weather become entangled with and produce border ...
Madelaine A. Joyce
wiley   +1 more source

EFFECT OF FORCED ROTATING VANELESS DIFFUSERS ON CENTRIFUGAL COMPRESSOR STAGE PERFORMANCE [PDF]

open access: yesJournal of Engineering Science and Technology, 2011
Non-uniform flow at the exit of the centrifugal impeller mixes in the vaneless space of the diffuser causing a rise in static pressure as well as significant loss of total pressure.
S. SERALATHAN, M. GOVARDHAN
doaj  

Reasons for low aerodynamic performance of 13.5-centimeter-tip-diameter aircraft engine starter turbine [PDF]

open access: yes
The reasons for the low aerodynamic performance of a 13.5 cm tip diameter aircraft engine starter turbine were investigated. Both the stator and the stage were evaluated.
Haas, J. E., Hermann, P., Roelke, R. J.
core   +1 more source

Method of fabricating an abradable gas path seal [PDF]

open access: yes, 1984
The thermal shock resistance of a ceramic layer is improved. The invention is particularly directed to an improved abradable lining that is deposited on shroud forming a gas path in turbomachinery.
Bill, R. C., Wisander, D. W.
core   +1 more source

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