Results 11 to 20 of about 165,005 (254)

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]

open access: yesОмский 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

Images as proximity sensors : the incidence of conspecific foraging in Antarctic fur seals [PDF]

open access: yes, 2015
Background: Although there have been recent advances in the development of animal-attached ‘proximity’ tags to remotely record the interactions of multiple individuals, the efficacy of these devices depends on the instrumentation of sufficient animals ...
Staniland, Iain J   +11 more
core   +1 more source

The behavioral ecology of maternal effort in fur seals and sea lions [PDF]

open access: yes, 1990
Trillmich F. The behavioral ecology of maternal effort in fur seals and sea lions. Behaviour.
Trillmich, Fritz ; https://orcid.org/
core   +1 more source

Foreign Impact and Local Creativity. The Case of Late Bronze Age Seals from Aegean Anatolia [PDF]

open access: yesStudia Hercynia, 2022
Late Bronze Age seals and sealings from Aegean Anatolia (the western part of western Anatolia) are a very heterogeneous collection of finds. Especially widespread are seals belonging to the Aegean tradition, including earlier hard stone seals and later ...
Magda Pieniążek
doaj  

The impact of the multi-gap seals on rotor dynamics [PDF]

open access: yesЖурнал 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  

Two Seals of the Strategоs of Asia Minor’s Themes from the North Black Sea

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2017
The seals of Fers Tsotzikos as anthypatos Patrikios and Strategos of Cappadocia and TornikVarazvatche as protospatharios and strategos of Claudia (?) were found in Cherson and Tamatarkha.
Valeriy P. Stepanenko
doaj   +1 more source

The Archives of Artaxata: Archival Practice in the Capital of Ancient Armenia

open access: yesElectrum, 2021
This article examines the seal impressions from Artaxata discovered in 1979/80 during excavations carried out by the Armenian Academy of Sciences on Hills V and VIII.
Torben Schreiber
doaj   +1 more source

The diet and feeding ecology of harbour seals around Britain [PDF]

open access: yes, 2015
Since 2000, there has been a marked decline in the number of harbour seals in some regions around Britain; one possible contributing cause is competition for prey with sympatric grey seals.
Wilson, Lindsay J.
core   +2 more sources

Genetic relationships among species of Contracaecum Railliet & Henry, 1912 and Phocascaris Höst, 1932 (Nematoda: Anisakidae) from pinnipeds inferred from mitochondrial cox2 sequences, and congruence with allozyme data

open access: yesParasite, 2008
The genetic relationships among 11 taxa, belonging to the genus Contracaecum (C. osculatum A, C. osculatum B, C. osculatum (s.s.), C. osculatum D, C. osculatum E, C. osculatum baicalensis, C. mirounga, C. radiatum, C. ogmorhini (s.s.), C.
Mattiucci S.   +6 more
doaj   +1 more source

In search of virus carriers of the 1988 and 2002 phocine distemper virus outbreaks in European harbour seals [PDF]

open access: yes, 2008
European harbour seal (Phoca vitulina) populations decreased substantially during the phocine distemper virus (PDV) outbreaks of 1988 and 2002. Different hypotheses have stated that various seals and terrestrial carnivore species might be the source of ...
Sonne, C.   +10 more
core   +1 more source

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