Results 21 to 30 of about 2,248,361 (334)

Tests of Influence of Selected Gas Operated Weapon’s Action Parameters on its Ballistic and Kinematic Characteristics Part I – Examples of the Results of Theoretical Research [PDF]

open access: yesProblemy Mechatroniki, 2015
Some results of theoretical tests on influence of selected weapon’s action parameters on ballistic and kinematic characteristics of gas operated short stroke piston weapon are presented in this paper.
Józef GACEK, Grzegorz LEŚNIK
doaj   +1 more source

On obtaining classical mechanics from quantum mechanics [PDF]

open access: yes, 2006
Constructing a classical mechanical system associated with a given quantum mechanical one, entails construction of a classical phase space and a corresponding Hamiltonian function from the available quantum structures and a notion of coarser observations.
Ashtekar A   +5 more
core   +2 more sources

Echo and heart failure: when do people need an echo, and when do they need natriuretic peptides?

open access: yesEcho Research and Practice, 2018
Heart failure (HF) is a threat to public health. Heterogeneities in aetiology and phenotype complicate the diagnosis and management of HF. This is especially true when considering HF with preserved ejection fraction (HFpEF), which makes up 50% of HF ...
Daniel Modin   +2 more
doaj   +1 more source

Reliability Analysis of Ventube Fan Rotor [PDF]

open access: yesProblemy Mechatroniki, 2015
Discs of ventube fan rotor were chosen as an object of the study. As a result of an analytical calculation, distribution of radial and circumferential stress and safety factor along rotor’s disc radius was calculated.
Stanisław WRZESIEŃ, Michał JASZTAL
doaj   +1 more source

Thermal Diffusivity Investigation of Turbine Jet Engine Compressor Blade Material by Modified Temperature Oscillation Method [PDF]

open access: yesProblemy Mechatroniki, 2018
The modified temperature oscillation method was applied for investigation of thermal diffusivity of the aviation turbine engine’s part. The studies resulted in characterization of the applied method and experimental procedures performance.
Łukasz OMEN, Andrzej PANAS
doaj   +1 more source

Analysis of Results of Empirical Investigations of Launcher–Missile System Using TEMA Motion Program Environment [PDF]

open access: yesProblemy Mechatroniki, 2018
The paper presents an analysis of the pictures, recorded from the testing ground investigations, obtained with application of the fast-digital camera Phantom v9.1.
Zbigniew DZIOPA, Maciej NYCKOWSKI
doaj   +1 more source

Identification of mechanics-responsive osteocyte signature in osteoarthritis subchondral bone

open access: yesBone & Joint Research, 2022
Aims: Osteoarthritis (OA) is a common degenerative joint disease. The osteocyte transcriptome is highly relevant to osteocyte biology. This study aimed to explore the osteocyte transcriptome in subchondral bone affected by OA.
Jun Zhou   +7 more
doaj   +1 more source

The "Unromantic Pictures" of Quantum Theory [PDF]

open access: yes, 2006
I am concerned with two views of quantum mechanics that John S. Bell called ``unromantic'': spontaneous wave function collapse and Bohmian mechanics. I discuss some of their merits and report about recent progress concerning extensions to quantum field ...
Allori V Goldstein S Tumulka R Zanghì N   +46 more
core   +3 more sources

The mechanism of dishabituation [PDF]

open access: yesFrontiers in Integrative Neuroscience, 2014
The dual-process theory of habituation attributes dishabituation, an increase in responding to a habituated stimulus after an interpolated deviant, to sensitization, a change in arousal. Our previous investigations into elicitation and habituation of the electrodermal orienting reflex (OR) showed that dishabituation is independent of sensitization for ...
Steiner, Genevieve Z. (R18023)   +1 more
openaire   +4 more sources

Design of Explosive Trains of Fuzes [PDF]

open access: yesProblemy Mechatroniki, 2015
This paper presents the examples of fuze explosive trains designing methods, on the example of 25-mm ammunition fuze. There have been described two, possible to choose, design methods for explosive trains of fuzes.
Grzegorz JĄCZEK, Józef GACEK, Eva FRIS
doaj   +1 more source

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