Results 121 to 130 of about 1,394,036 (230)

Controlling the Center of Mass Motion of Levitated Particles Using Structured Wavefronts

Laser &Photonics Reviews, EarlyView.
Optically levitated particles have great potential for quantum‐enhanced sensing. Precise control of the trapping beam is crucial to improve the stability and confinement of these systems. Here, we study how structured wavefronts can be used to control the center‐of‐mass motion of levitated particles, enhancing trap stiffness and enabling stable ...
Shah Jee Rahman, Quimey Pears Stefano, Angel Cifuentes, Jason Francis, Iker Gómez‐Viloria, Ruben Pellicer‐Guridi, Miguel Varga, Gabriel Molina‐Terriza   +7 more
wiley   +1 more source

Intensity Noise Dynamics in Terahertz Quantum Cascade Lasers

Laser &Photonics Reviews, EarlyView.
Intensity‐noise dynamics in terahertz quantum cascade lasers are investigated across single‐mode, dense‐comb and harmonic‐comb regimes using graphene thermoelectric detectors. Harmonic combs show ∼10% lower relative intensity noise, while RIN scales as P0−γ$P_0^{ - \gamma }$ with γ≈1.2$\gamma \approx 1.2$, revealing a crossover from spontaneous ...
M. Alejandro Justo‐Guerrero, Leonardo Viti, Vladimir Pushkarev, Lianhe Li, Edmund H. Linfield, Miriam S. Vitiello   +5 more
wiley   +1 more source

Design, Analysis, and Experimental Validation of a Variable‐Gap Magnetorheological Damper for Seat Suspension

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT To address the dual challenges of routine driving vibration and impact loads in vehicle seat suspensions, a novel variable‐gap magnetorheological damper (VGMRD) is proposed. By combining a tapered piston with a conformal variable‐diameter cylinder, stroke‐dependent, dual‐mode damping characteristics are achieved without the need for complex ...
Min Wei, Yuchen He, Xiaoting Rui, Yixin Liu, Lilin Gu   +4 more
wiley   +1 more source

Electrophysiological Correlates of Blast-Wave Induced Cerebellar Injury. [PDF]

Sci Rep, 2018
Ordek G, Asan AS, Cetinkaya E, Skotak M, Kakulavarapu VR, Chandra N, Sahin M.   +6 more
europepmc   +1 more source

Body Size, Dental Pathology, and Maternal Genetic Diversity of Ancient Horses in the Eastern Baltic Sea Region and Western Russia

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT The early evolutionary history of modern domestic horses (Equus caballus/Equus ferus caballus), known as the DOM2 lineage, is well documented due to numerous archaeological and ancient DNA (aDNA) studies. Although many uncertainties remain in the domestication timeline, current evidence suggests that the domestication of modern horses began in
Johanna Honka, Daniela Salazar, Arthur O. Askeyev, Igor V. Askeyev, Oleg V. Askeyev, Jouni Aspi, Gulshat Sh. Asylgaraeva, Markku Niskanen, Kristiina Mannermaa, Suvi Olli, Noora Piipponen, Giedrė Piličiauskienė, Dilyara N. Shaymuratova, Renat R. Valiev, Laura Kvist   +14 more
wiley   +1 more source

Occupational Blast Wave Exposure During Multiday 0.50 Caliber Rifle Course. [PDF]

Front Neurol, 2019
Skotak M, LaValle C, Misistia A, Egnoto MJ, Chandra N, Kamimori G.   +5 more
europepmc   +1 more source

An Adaptive Multiple Shooting Strategy for Optimal Control

Optimal Control Applications and Methods, EarlyView.
We study how multiple shooting affects the convergence of Newton‐type methods for optimal control, comparing several shooting strategies across 40 benchmark problems. The study covers interior‐point and sequential quadratic programming methods with both Quasi‐Newton approximations and exact Hessians.
Robert Lampel, Sebastian Sager
wiley   +1 more source

Monitoring blast wave evolution and propagation using coupled visual recording and pressure measurements. [PDF]

Sci Rep
Sławski S, Polis M, Krzystała E, Szydło K, Duda S, Stolarczyk A, Jarosz T.   +6 more
europepmc   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

Comparison of explosively driven shock tube and open-air blast wave propagation. [PDF]

Sci Rep
Bauer RL, Johnson CE.
europepmc   +1 more source