Results 111 to 120 of about 327,633 (295)

The birth environment of planetary systems. [PDF]

R Soc Open Sci, 2020
Parker RJ.
europepmc   +1 more source

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Predicted incidence of Jupiter-like planets around white dwarfs

Astronomy & Astrophysics
Context. Gas-giant planets and brown dwarfs have been discovered in large numbers around main-sequence stars and even evolved stars. In contrast, and despite ongoing imaging surveys using state-of-the-art facilities, only a handful of substellar ...
Mauch-Soriano Alex, Schreiber Matthias R., Correa Diego, Pinilla Julio, Riveros-Jara Catalina, Vivanco Javiera, Ronco Maria Paula, Belloni Diogo, Lagos-Vilches Felipe, Brandner Wolfgang   +9 more
doaj   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

Dilution of accreted planetary matter in hot DA white dwarfs according to their mass

Astronomy & Astrophysics
Context. A large proportion of observed white dwarfs show evidence of debris disks, remnants of the former planetary systems, and/or signatures of heavy elements in their atmospheres, induced by the accretion of planetary matter onto their surfaces.
Deal M., Vauclair S., Charpinet S., Vauclair G.   +3 more
doaj   +1 more source

Elimination of Necking and Aspect Ratio Dependence in Uniaxial Actuators by Continuous Fiber Reinforcement

Advanced Robotics Research, EarlyView.
A novel carbon fiber reinforcement for dielectric elastomer actuators enhances actuation force while decoupling electromechanical performance from the actuator's aspect ratio. Unlike conventional fiber reinforcements, it enables a uniform planar stretch state along the entire actuator.
Markus Koenigsdorff, Stefania Konstantinidi, Anett Endesfelder, Petr Osipov, Johannes Mersch, E.‐F. Markus Vorrath, Martina Zimmermann, Yves Perriard, Gerald Gerlach   +8 more
wiley   +1 more source

Long-term X-ray variability of the multiple-planet host L 98-59: Hints of an activity cycle

Astronomy & Astrophysics
High-energy irradiation in X-rays and UV (XUV) can transform the planetary atmospheres through photoevaporation and photochemistry. This is more crucial for M stars, whose habitable zones for Earth-like planets are located within a few percent of an AU ...
Pillitteri I., Bellotti S., Benatti S., Boro Saikia S., García Muñoz A., Kislyakova K. G., Maggio A., Micela G., Vida K., Vidotto A. A.   +9 more
doaj   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

PLATOSpec first results: Three new transiting warm Jupiters from the WINE survey, TIC 147027702, TIC 245076932, and TIC 87422071

Astronomy & Astrophysics
We report the discovery and characterisation of three transiting warm Jupiters: TIC 147027702b, TIC 245076932b, and TIC 87422071b. These systems were initially identified as transiting candidates using light curves generated from the full-frame images of
Gajdoš Pavol, Brahm Rafael, Acuña-Aguirre Lorena, Jones Matías I., Salinas Helem, Lipták Jozef, Jordán Andrés, Henning Thomas, Srba Jiří, Žd’árská Eva, Balkóová Zuzana, Vítková Michaela, Janík Jan, Škoda Petr, Žák Jiří, Mekarnia Djamel, Suarez Olga, Abe Lyu, Beltrame Matteo, Triaud Amaury H. M. J., Guillot Tristan, Collins Karen A., Barkaoui Khalid, Boyle Gavin, Suc Vincent, Antonucci Luca, Pinto Marcelo Tala, Vostretcova Elizaveta, Eberhardt Jan, Espinoza Néstor, Mireles Ismael, Pintr Pavel, Rojas Felipe I., Schaffenroth Veronika, Vanzi Leo, Kabáth Petr   +35 more
doaj   +1 more source