Results 21 to 30 of about 46,686 (193)

Methodology for Testing High-Energy Materials Under Low Temperature Conditions [PDF]

open access: yesProblemy Mechatroniki, 2021
The methodology developed for testing gun propellants at low temperatures according to PN-EN ISO 604:2006 is presented in the paper. Brief characteristics are given of the materials tested and the most important static compression test conditions, such ...
Patryk MODRZEJEWSKI, Jacek JANISZEWSKI
doaj   +1 more source

Preliminary Physical and Mathematical Model of the Recoil Operated Firearm within the Bolt Recoil Period [PDF]

open access: yesProblemy Mechatroniki, 2021
This paper presents a preliminary physical and mathematical model which describes the specific action of an automatic, short recoil operated firearm with an accelerator.
Damian SZUPIEŃKO, Ryszard B. WOŹNIAK
doaj   +1 more source

Testing of Sinters Made of Copper Powders Coated with Carbon Structure Containing Graphene [PDF]

open access: yesProblemy Mechatroniki, 2021
This paper presents the results of preliminary tests on specimens made from mixtures of dendritic copper powder (CuE) with the graphene-coated copper powder (CuG) in a range from 20% to 100% (CuG).
Kamil RAJKOWSKI, Tomasz MAJEWSKI
doaj   +1 more source

IMPROVING OF ELECTROMECHANICAL STABILIZATION SYSTEMS ACCURACY

open access: yesElectrical engineering & Electromechanics, 2019
Aim. Improving of accuracy parameters and reducing of sensitivity to changes of plant parameters for nonlinear robust tank main armament guidance and stabilization electromechanical systems based on synchronous motor with permanent magnets and vector ...
B. I. Kuznetsov   +3 more
doaj   +1 more source

Standard Rifle of the MSBS-5.56K Small Arm System as the Main “Polish Future Soldier” Weapon (part II) [PDF]

open access: yesProblemy Mechatroniki, 2015
The main assemblies and mechanisms of the MSBS-5.56K assault rifle, developed by the Section of Special Technology of the Military University of Technology (Warsaw, Poland) and “Archer”-Radom Arms Factory LLC (Radom, Poland), are precisely described in ...
Norbert Piechota   +2 more
doaj   +1 more source

THE NEW EURO-ATLANTIC COOPERATION DIMENSION - THE SMART DEFENCE INITIATIVE [PDF]

open access: yesAnnals: Series on Military Sciences, 2012
The beginning of the 21st century brought critical transformations on the background of the strategic changes initiated by the major actors involved in the energy resources competition, after a financial crisis that led to austerity budget planning. This
Mihai-Ștefan DINU
doaj  

Armament Items from The Bolgar-Tatar City of Juketau

open access: yesАрхеология евразийских степей, 2021
The paper introduces into scientific discourse weapons of the 10th–14th centuries from the Bolgar-Tatar city of Juketau (referred to as “Zhukotin” in the Оld Russian chronicles), the archaeological remains of which were located near the city of Chistopol
Nabiullin Nail G. , Izmaylov Iskander L.
doaj   +1 more source

On one series of the VI century AD iron one-piece asian helmets

open access: yesBanber Arevelagitut'yan Instituti, 2023
The article describes a series of helmets of a type that probably spread across Asia and Eastern Europe in the middle to the second half of the VI century AD.
Adam Kubik, Oleg Radyuš, Leonid Vyazov
doaj  

Material assets of the mobilization of Armed forces of the Czech Republic at the beginning of the 21st century

open access: yesVojenské rozhledy, 2022
This article focuses on the identification of key factors of material resources in the field of equipment, armaments and military vehicles within the Czech state needed for effective mobilization. The primary goal is to answer the question of whether the
Petr Dosoudil
doaj   +1 more source

Comparative analysis of different types of ballistic barrels used in the ammunition researches [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2021
Manufacturers offer different types of ballistic barrels made in according to various standards. The paper presents comparison of three types of ballistic barrels: pressure, velocity and accuracy made according to C.I.P.
Dawid Goździk   +2 more
doaj   +1 more source

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