Results 21 to 30 of about 252,941 (179)

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

open access: yesSystems 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

The Reflexive Turn in Systems Engineering: A Disciplinary Response to Complexity

open access: yesSystems Engineering, EarlyView.
ABSTRACT The Future of Systems Engineering (FuSE) programme has called for the discipline to evolve as a transdiscipline capable of engaging complex eco‐socio‐technical challenges. Yet the pace of that evolution has been slower than the arguments for it would predict. This article examines why.
Raul Leal Ascencio
wiley   +1 more source

Penetration of a glass-faced transparent elastomeric resin by a lead-antimony-cored bullet [PDF]

open access: yes, 2008
The penetration of the lead antimony-cored 7.62 mm × 51 mm bullet into a glass- faced polyurethane elastomeric polymer resin has been studied. The resulting craters in the resin contained elongated bullet core material that had a significant amount of ...
Hazell, P.J.   +5 more
core   +1 more source

What Is the Return on Investment of Digital Engineering for Complex Systems Development Schedules? Findings From a Mixed‐Methods Case Study on the Post‐Production Design Change Processes of Navy Assets

open access: yesSystems Engineering, EarlyView.
ABSTRACT Complex engineered systems routinely face schedule and cost overruns, along with poor post‐deployment performance. Both INCOSE and the U.S. Department of Defense (DoD) have championed Digital Engineering (DE) as a potential remedy, yet most of DE's purported benefits remain anecdotal, and its return on investment (ROI) remains poorly ...
Jannatul Shefa, Taylan G. Topcu
wiley   +1 more source

The Unintended Consequences of German Deterrence

open access: yesGlobal 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

Between Hedging and Bandwagoning: E3 and Iran's Nuclear Program From the JCPOA to the 2026 “Ramadan War”

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article examines the evolution of the European Troika's narratives on Iran's nuclear program, from the aftermath of the JCPOA to the 2026 “Ramadan War.” Drawing on an analysis of 55 official statements by E3 leaders and diplomats, the study traces how the E3 shifted between a posture of normative hedging and one of bandwagoning.
Mohammad Eslami
wiley   +1 more source

A Conceptual Framework for Studying the Effectiveness of Ballistic Missile Defence System (BMDS) and a Proposed Model

open access: yesİstanbul Gelişim Üniversitesi Sosyal Bilimler Dergisi
The Ballistic Missile Defence System (BMDS), like any system, has its effectiveness, which must be studied, because it determines the extent to which the goal of this system's existence is achieved.
Kenan Özden, Orhan Akzade
doaj   +1 more source

Bolide Light Curve Systematics from 75 Recovered Meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens   +3 more
wiley   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

INDIA’S SUBMARINE FORCE MODERNIZATION AND ITS ROLE IN STRATEGIC DETERRENCE

open access: yesMargalla Papers
The emergence of competition among 21st-century maritime powers has transformed the underwater region into an important region of deterrence and strategic influence.
Warda Tehreem
doaj   +1 more source

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