The first part of this two-part paper presents a general theory of dissipative dynamical systems. The mathematical model used is a state space model and dissipativeness is defined in terms of an ...

In this paper, we propose a theoretical model to investigate the generation and evolution of dissipative pure-quartic solitons (DPQSs) in an all-normal dispersion Mamyshev oscillator. We reveal that ...

According to this photo taken from video distributed by the Russian Defense Ministry Press Service on Monday, Jan. 13, 2025, a Ukrainian tank burns after being hit by a Russian drone near the ...

Copyright 2025 The Associated Press. All Rights Reserved. Palestinians sit in front of closed shops during a general strike called as Palestinian security forces ...

More than 13,000 people in the UK's armed forces are "not medically deployable", defence ministry figures show. Statistics shared by Al Carns, the veterans minister, who is also a reservist ...

Russian and Ukrainian forces are fighting for control of the Kozatskyi and Kruhlyk islands, which are located at the river's mouth, where it empties into the Black Sea. This operation is ...

Porter's Five Forces is a qualitative tool that can be applied to investment analysis, assessing competitiveness and potential risks. Various qualitative factors can be easily attained from public ...

A total of 15,119 military personnel left the Armed Forces in the year to October, of which 7,778 were counted as ‘voluntary outflow’ – meaning they left of their own accord - Getty Images ...

"All of this in just five years." The U.S. Space Force celebrates its fifth anniversary today. The service was formally established on Dec. 20, 2019, when President Donald Trump signed it into law ...