Results 171 to 180 of about 165,973 (305)

Development of an Aeroservoelastic Model for Gust Load Alleviation of the NASA Common Research Model Wind Tunnel Experiment [PDF]

As aircraft move to using composite materials as their primary structure they become lighter and more flexible as well. This presents some significant challenges in association with gust load alleviation.
Cramer, Nick, Nguyen, Nhan
core   +1 more source

Federalism in Post‐Assad Syria: Toward Durable Peace in a Pluralist Society

Middle East Policy, EarlyView.
Abstract Syria's civil war has left behind a fractured state. While the new president, Ahmed al‐Sharaa, seeks to unify the country and restore centralized governance, this appears unworkable. Instead, this article contends, asymmetrical federalism offers a pathway toward stability.
Dilan Okcuoglu
wiley   +1 more source

Soft Active Polymers for Biomimetic Shape Morphing Wings. [PDF]

Biomimetics (Basel)
Yuan C, Liu C, Wang Z.
europepmc   +1 more source

Signals, Red Lines, and Collision: The Israel‐Iran Spiral and US Intervention

Middle East Policy, EarlyView.
Abstract The Iran War erupted in February 2026 without UN authorization, and Washington's rationales—Iranian nuclear ambitions, missile capacity, and proxy threats—map more closely onto Israeli than US security interests. Why have we seen two major conflicts between these belligerents in less than one year?
Buğra Sari
wiley   +1 more source

Research on Design and Control Method of Flexible Wing Ribs with Chordwise Variable Camber. [PDF]

Biomimetics (Basel)
Tao X, Bin L.
europepmc   +1 more source

The Mathematical History Behind the Granger–Johansen Representation Theorem

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley   +1 more source

Data sparse inference of operator spatial reward models in uncertain environments. [PDF]

Front Robot AI
Ray HM, Pandey A, Ahmed N.
europepmc   +1 more source

Simulation of a flexible aircraft dynamics

Simulation of a flexible aircraft dynamics
航空宇宙技術研究所 16-18 Jun. 1999 東京 日本 National Aerospace Laboratory 16-18 Jun. 1999 Tokyo Japan SST実験機の遷音速領域でのフラッタの数値シミュレーションを報告する。航空機の翼と胴体の弾性は、構造方程式を解く際に24個の対称および非対称の自然モードを使用することによって考慮した。SSTの応答を見るために、オイラー方程式および構造方程式は同時に積分された。線形理論と同じように、補助翼のフラッタはこの形状では最も重要なものの1つであることが分かった。マッハ数0.6〜1.0の範囲で線形理論から予測されたフラッタの境界より低い値が推算された。 Numerical flutter simulation of the ...
openaire  

Law and Infrastructure: Reliability, Automation Transition, and Irregularities of “U‐Space”

Regulation &Governance, EarlyView.
ABSTRACT The European Union (EU) is making regulatory efforts to allow for the safe integration of drones into civilian airspace through automated means. Commission Implementing Regulation (EU) 2021/664 concerning unmanned traffic management (a system referred to as “U‐Space”) furthers that commitment. Accordingly, drone operators must avail themselves
Samar Abbas Nawaz
wiley   +1 more source

Does the stepping‐stone effect of temporary agency employment vary over the business cycle?

The Scandinavian Journal of Economics, EarlyView.
Abstract We examine the cyclicality of the stepping‐stone effect of temporary agency work in Germany across three business cycles using administrative data and a timing‐of‐events model. We estimate in‐ and post‐treatment effects and their response to the unemployment rate.
Elke J. Jahn, Michael Rosholm
wiley   +1 more source