Results 61 to 70 of about 688,541 (286)

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

Advanced Science, EarlyView.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li, Shaofeng Zhang, Qiang Feng, Dexiao Xia, Yajie Mu, Xiangjin Ma, Jiaqi Han, Haixia Liu, Guangyao Liu, Long Li   +9 more
wiley   +1 more source

A Drug‐Gated, Modular STAb‐T Immunotherapy With External Control

Advanced Science, EarlyView.
Engineered STAb‐TON cells act as programmable living factories that continuously secrete inactive antibody modules, which assemble extracellularly into a functional T cell engager only upon small‐molecule administration. This externally controlled platform enables reversible, on‐demand regulation of antitumor immunity, establishing a new paradigm for ...
Susana Luengo‐Arias, Carmen Domínguez‐Alonso, Ivana Zagorac, Antonio Tapia‐Galisteo, Eva García‐Veros, Laura Rubio‐Pérez, Marina Gómez‐Rosel, Patricia Fuentes, Patricia Hernández‐López, Óscar Aguilar‐Sopeña, Laura Almagro‐Puente, Sonia Martínez‐González, Lucía Cañizares‐Moscato, María Rivas‐Sánchez, Belén Blanco, Ángel Ramírez‐Fernández, Laura Díez‐Alonso, Carmen Blanco‐Aparicio, Javier Arroyo‐Ródenas, Jorge Martínez‐Torrecuadrada, María L. Toribio, Pedro Roda‐Navarro, Anaïs Jiménez‐Reinoso, Luis Álvarez‐Vallina   +23 more
wiley   +1 more source

Atmospheric Drag Analysis with the AEROS Satellites

Journal of geomagnetism and geoelectricity, 1979
The approach followed in deriving total gas density at perigee from the orbital decay of the AEROS satellites is described. Numerical integration of the drag force acting on the satellite along the orbit is used in an iterative procedure to compute thermospheric density.
ROEMER, M., RICHTER, E., SLOWEY, J. W.
openaire   +2 more sources

Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers

Advanced Science, EarlyView.
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Jiahui Chu, Lemin Zhang, Xu Wang, Wenzong Li, Yahua Liu   +4 more
wiley   +1 more source

Real‐Time Thermospheric Density Estimation via Two‐Line Element Data Assimilation

Space Weather, 2020
Inaccurate estimates of the thermospheric density are a major source of error in low Earth orbit prediction. Therefore, real‐time density estimation is required to improve orbit prediction.
David J. Gondelach, Richard Linares
doaj   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source

Coexistence of Large Nernst Effect and Axis‐Dependent Conduction Polarity in Semimetal MoSi2

Advanced Electronic Materials, EarlyView.
MoSi2${\rm MoSi}_2$ is a rare material in which axis‐dependent conduction polarity (ADCP) and a large ordinary Nernst effect (ONE) coexist. The pronounced ONE (199μVK−1$199\,\umu \mathrm {V}\,\mathrm {K}^{-1}$) originates from nearly perfect carrier compensation, high mobility, and likely phonon drag, while ADCP arises from mixed‐dimensionality of the ...
Orest Pavlosiuk, Maciej J. Winiarski
wiley   +1 more source

A Design Method for Redundant Microthruster Layout With Allocation Error

International Journal of Aerospace Engineering
The microthruster is generally chosen as the actuator of the drag-free satellite control system, and the layout directly affects the stability of the satellite control.
Mingwei Chen, Chu Zhang, Jianwu He, Chao Yang, Li Duan, Qi Kang   +5 more
doaj   +1 more source

Estimating Satellite Orbital Drag During Historical Magnetic Superstorms

Space Weather, 2020
Understanding extreme space weather events is of paramount importance in efforts to protect technological systems in space and on the ground. Particularly in the thermosphere, the subsequent extreme magnetic storms can pose serious threats to low Earth ...
Denny M. Oliveira, Eftyhia Zesta, Hisashi Hayakawa, Ankush Bhaskar   +3 more
doaj   +1 more source

Satellite Drag [PDF]

, 2014
This presentation describes orbital drag effects on satellite orbits, selected satellite drag impacts, thermosphere effects, tracking errors, and observations of specific storm ...
Connor, Hyunju, Zesta, Eftyhia, Sutton, Eric   +2 more
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