Results 21 to 30 of about 384,763 (269)

Heat Transfer Calculations in Barrel Cover of 35 mm Naval Armament System Gun [PDF]

open access: yesProblemy Mechatroniki, 2018
This paper presents the results of numerical simulations of non-stationary heat transfer in a 35 mm anti-air gun barrel cover made of composite materials. The cover protects the gun against weather conditions, including sea water effects, and serves as a
Zbigniew LECIEJEWSKI   +5 more
doaj   +1 more source

Vibrations and Stability of a Plate in Supersonic Flow Subjected to a Follower Force, and Having a Hinged External Support and a Resilient Attenuation Internal Support [PDF]

open access: yesProblemy Mechatroniki, 2018
The vibrations and stability of a plate having a finite length were considered in a flat supersonic flow, having adopted an assumption that one of the edges of the plate has a hinged support, and the other edge is free.
Idzi NOWOTARSKI
doaj   +1 more source

The effect of gamification on brand co-creation in app-based businesses: investigating the mediating role of consumer engagement and the moderating role of hedonic and innovativeness [PDF]

open access: yesارزش آفرینی در مدیریت کسب و کار
Today, customer participation in branding through brand co-creation behavior is one of the most important concerns and challenges of industries in this field.
Rayhane Rezagholizade   +2 more
doaj   +1 more source

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

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

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

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

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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