Results 91 to 100 of about 887 (248)

Professionalising the Cybersystemic Practitioner: Five Decades of STiP Education at the Open University (1971–2025)

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper draws on over five decades of experience in educating and developing systems thinking practitioners at the Open University (OU) UK to explore the opportunities and challenges in the professionalisation of systems thinking in practice (STiP).
Ray Ison
wiley   +1 more source

Development of Ammunition with Unconventional Applications

, 2020
The aim of the work was to develop a composite consisting of tungsten powder and other metal powders, with the density close to that of lead (11.3 Mg/m3), under laboratory conditions. This material should also meet the requirements for bullet cores.
Goroch, Olgierd, Gulbinowicz, Zbigniew, Cybula, Leszek   +2 more
core   +1 more source

Europium‐ and dysprosium‐modified strontium aluminate: A luminescent marker system for enhanced gunshot residue detection

Journal of Forensic Sciences, EarlyView.
Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin, Cesar Aguzzoli, Sidnei Moura   +2 more
wiley   +1 more source

Inverse problem of external ballistics and algorithm for determining parameters of artillery projectile motion models

, 2007
W artykule opisano regularyzujący algorytm numerycznego rozwiązywania zagadnienia odwrotnego balistyki zewnętrznej, czyli wyznaczania, na podstawie danych doświadczalnych, współczynników sił i momentów aerodynamicznych pocisku, przydatny dla każdego z ...
Kojdecki, M. A., Baranowski, L.
core  

The Dual‐Use Conundrum of the Lisbon Treaty Regarding Space Governance: Solutions Through International Legal Interpretation?

Global Policy, EarlyView.
ABSTRACT An inherent divide features within the Lisbon Treaty between civilian and military/security competences; something previously more obvious via the ‘pillar system's’ separations. This division follows the Member States (MS) (natural) protection of their military/defence autonomy; their core sovereign powers.
Charlie J. P. Bennett
wiley   +1 more source

On the issue of load’s external ballistics under low-speed transportation

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu
Purpose. Solution of the three-dimensional nonlinear problem of external ballistics and development of an approximate mathematical model of the dynamic process for cargo falling from low-speed aircraft, which makes it possible to obtain an analytical solution, which is possible in combination with a geometric representation of the dynamic process using
O. O Aziukovskyi, V. Z Gryshchak, K. A Ziborov, S. O Fedoriachenko, D. V Harkavenko   +4 more
openaire   +1 more source

The Unintended Consequences of German Deterrence

Global Policy, EarlyView.
ABSTRACT Germany's evolving deterrence posture boils down to continued participation in NATO nuclear sharing and an ambitious conventional rearmament program. Due to its non‐nuclear status and a result of decades of underinvestment, Germany prioritizes modern conventional weapons.
Ulrich Kühn
wiley   +1 more source

Complementarity in alliances: How strategic compatibility and hierarchy promote efficient cooperation in international security

American Journal of Political Science, EarlyView.
Abstract How can defense alliances reap the efficiency gains of working together when coordination and opportunism costs are high? Although specializing as part of a collective comes with economic and functional benefits, states must bargain over the distribution of those gains and ensure the costs of collective action are minimized.
J. Andrés Gannon
wiley   +1 more source

Chosen elements of external and terminal ballistics of arrows projected from the crossbow

, 2014
W artykule zaprezentowano, strzały, groty, i typową kuszę oraz zalety tej broni, a także zagrożenia, jakie powodować może jej użycie. Zamieszczono wyniki badań balistyki przejściowej i zewnętrznej.
Łandwijt, M., Stępniak, W.
core  

An Evaluation Of Rocket Parameters

, 2014
The dependence of conventional parameters of internal ballistics of Solid Propellant Rockets using external burning cruciform charge, on the geometry of charge aad rocket motor is discussed and results applied in a special ...
Beri, J. N.
core   +1 more source