Results 11 to 20 of about 594,060 (358)
Non-metallic brush seals for gas turbine bearings [PDF]
, 2004 A non-metallic brush seal has been developed as an oil seal for use in turbomachinary. Traditionally labyrinth-type seals with larger clearances have been used in such applications. Labyrinth seals have higher leakage rates and can undergo excessive wear
Akşit, Mahmut Faruk +4 more
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bioRxiv, 2018 Like many species, movement patterns of southern elephant seals (Mirounga leonina) are being influenced by long-term environmental change. These seals migrate up to 4000 km from their breeding colonies, foraging for months in a variety of Southern Ocean ...
I. Jonsen +6 more
semanticscholar +1 more source
Symmetries in Images on Ancient Seals [PDF]
, 2009 We discuss the presence of symmetries in images engraved on ancient seals, in particular on stamp seals. Used to stamp decorations, to secure the containers from tampering and for owner's identification, we can find seals that can be dated from Neolithic
Sparavigna, Amelia Carolina
core +1 more source
PeerJ, 2017 To assess whether demographic declines of Arctic species at the southern limit of their range will be gradual or punctuated, we compared large-scale environmental patterns including sea ice dynamics to ringed seal (Pusa hispida) reproduction, body ...
S. Ferguson +5 more
semanticscholar +1 more source
The analysis of the main directions for reducing the intensity of mass flows of the working fluid through leaks in the working chamber of a piston long-stroke low-speed compressor stage [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"The working processes and integral characteristics of piston long-stroke low-speed compressor stages are considered. Well-known technologies for increasing the feed rate are considered as objects of comparison: selection of the main dimensions and ...
V. L. Yusha +2 more
doaj +1 more source
Detection of Novel Poxvirus from Gray Seal (Halichoerus grypus), Germany
Emerging Infectious Diseases, 2023 We detected a novel poxvirus from a gray seal (Halichoerus grypus) from the North Sea, Germany. The juvenile animal showed pox-like lesions and deteriorating overall health condition and was finally euthanized. Histology, electron microscopy, sequencing,
Florian Pfaff +8 more
doaj +1 more source
Avian Influenza A(H10N7) Virus–Associated Mass Deaths among Harbor Seals
Emerging Infectious Diseases, 2015 To the Editor: Avian influenza A viruses occasionally cross the species barrier; influenza A(H5N1) virus and the recently emerged influenza A(H7N9) virus are prime examples of bird-to-human transmission (1,2).
R. Bodewes +11 more
semanticscholar +1 more source
Social Status of Women in the Sassanid Period (Based on the Seals and its Effects) [PDF]
هنر اسلامی, 2020 The knowledge gained in the field of social history in ancient Iran has constantly caused complications for researchers due to the method of historiography and the limitation of written sources. Meanwhile, the remnants of the Sassanid period (224-651 AD)
Behrokh Jamali +2 more
doaj +1 more source
Influenza A(H10N7) Virus in Dead Harbor Seals, Denmark
Emerging Infectious Diseases, 2015 Since April 2014, an outbreak of influenza in harbor seals has been ongoing in northern Europe. In Denmark during June–August, 152 harbor seals on the island of Anholt were found dead from severe pneumonia.
J. S. Krog +9 more
semanticscholar +1 more source
The impact of the multi-gap seals on rotor dynamics [PDF]
Журнал інженерних наук, 2017 The research relevance of multi-slotted seals is of practical significance for increasing vibrationreliability of centrifugal pumps. This paper presents the model of a single-disk rotor with seals. The forced radial rotor vibrations are determined taking
V. A. Martsynkovskyy, O. O. Pozovnyi
doaj