Results 21 to 30 of about 165,292 (342)

Investigation of the mechanical performance of the composite prosthetic keel based on the static load: a computational analysis

open access: yesEastern-European Journal of Enterprise Technologies, 2022
In this paper, the numerical simulation of the mechanical performance of a composite prosthetic keel structure under static load has been explored, and the findings of this inquiry have been included.
K. Subhi   +3 more
semanticscholar   +1 more source

Keel bone fractures in Danish laying hens: Prevalence and risk factors

open access: yesPLoS ONE, 2021
Keel bone fractures (KBF) in commercial poultry production systems are a major welfare problem with possible economic consequences for the poultry industry. Recent investigations suggest that the overall situation may be worsening.
I. Thøfner, J. Dahl, J. Christensen
semanticscholar   +1 more source

Meisterlikud õpipoisid. Jaan Kaplinski ja tema hingesugulane Tomas Tranströmer / Masterful Servants: Jaan Kaplinski and his soulmate Tomas Tranströmer

open access: yesMethis: Studia Humaniora Estonica, 2022
Luuletajad Jaan Kaplinski (1941–2021) ja Tomas Tranströmer (1931–2015), keda lahutas raudne eesriie, kasvasid üles väga erinevates maailmades. Ent siiski said neist hingesugulased.
Thomas Salumets
doaj   +1 more source

Kinematics and structural evolution of the Anziling dome-and-keel architecture in east China: Evidence of Neoarchean vertical tectonism in the North China Craton

open access: yesGSA Bulletin, 2021
The debate on the role of vertical versus horizontal tectonism in Archean cratons is intimately linked to the initiation of plate tectonics. The dome-and-keel architecture has been considered as a consequence of vertical tectonism.
Chen Zhao   +7 more
semanticscholar   +1 more source

Keel Bone Damage in Laying Hens—Its Relation to Bone Mineral Density, Body Growth Rate and Laying Performance

open access: yesAnimals, 2021
Simple Summary Keel bone damage is an important welfare issue for laying hens. Four lines of laying hens, differing in phylogenetic origin and laying rate kept in single cages or a floor housing system were weighed and deformities of the keel bone were ...
C. Habig   +5 more
semanticscholar   +1 more source

A hidden Rodinian lithospheric keel beneath Zealandia, Earth’s newly recognized continent

open access: yesGeology, 2021
We present a data set of >1500 in situ O-Hf-U-Pb zircon isotope analyses that document the existence of a concealed Rodinian lithospheric keel beneath continental Zealandia.
R. Turnbull, E. al.
semanticscholar   +1 more source

Welfare parameters and keel bone damage in laying hens reared in different production systems [PDF]

open access: yesBiotechnology in Animal Husbandry, 2021
The aim of this study was to determine the effect of housing system and the age of hens on welfare parameters and the prevalence of keel bone damage in laying hens. In this study two housing systems were evaluated: aviary system and enriched cages.
Spiridonović Sava   +4 more
doaj   +1 more source

Typhoon-Resistant Performance Assessment of Coastal Rural Residential Keel Brick Walls Reinforced with High Ductility Concrete

open access: yesJournal of Marine Science and Engineering, 2022
The keel brick wall belongs to the rural residential exterior wall unique to the southeast coastal region of China. The wooden keel inside the wall and the external tie members can improve the stability of the whole wall.
Qiang Li   +4 more
doaj   +1 more source

Keel's base point free theorem and quotients in mixed characteristic [PDF]

open access: yesAnnals of Mathematics, 2020
We develop techniques of mimicking the Frobenius action in the study of universal homeomorphisms in mixed characteristic. As a consequence, we show a mixed characteristic Keel's base point free theorem obtaining applications towards the mixed ...
J. Witaszek
semanticscholar   +1 more source

Cost-Oriented Design Optimization of Single Building Curtain Wall

open access: yesBuildings, 2023
A building curtain wall is an outer protective structure of a building composed of a panel and a supporting structure system. As the main materials of a building curtain wall, the optimization of the keel and panel is a problem that has attracted much ...
Lei Liu   +3 more
doaj   +1 more source

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