Results 51 to 60 of about 15,405 (257)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Joint beamforming and cooperative jamming for secure transmission in multi-antenna decode-and-forward relaying sensor networks: A greedy switching strategy

International Journal of Distributed Sensor Networks, 2017
In wireless sensor networks, sensor nodes are deployed to collect data and deliver the sensed information to a base station in a wireless manner. Due to the broadcast nature of wireless sensor communications, relay-sensor-based secure transmission ...
Zhi Lin, Li Lou, Bin Gao, Fenggang Sun, Yuzhen Huang, Maoqiang Yang, Mingfang Ni   +6 more
doaj   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Full-pulse Multi-jammer Cooperative Jamming Method for Active-passive Radar Composite Detection

Leida xuebao
In an increasingly complex electromagnetic environment, the composite detection of active-passive radar, with its excellent complementary advantages, has become an important working mode for enhancing the combat capability and anti-interference ...
Wen JIANG, Qiong JIA, Zhen LIU, Yanping WANG, Yun LIN, Yang LI, Wenjie SHEN   +6 more
doaj   +1 more source

Deep Reinforcement Learning Based Decision Making for Complex Jamming Waveforms

Entropy, 2022
With the development of artificial intelligence, intelligent communication jamming decision making is an important research direction of cognitive electronic warfare.
Yuting Xu, Chao Wang, Jiakai Liang, Keqiang Yue, Wenjun Li, Shilian Zheng, Zhijin Zhao   +6 more
doaj   +1 more source

All‐PEG‐Like Block Copolymers Self‐Assemble into Stealth Nanocarriers for Drug Delivery

Advanced Science, EarlyView.
Self‐assembling nanoparticles composed entirely of POEGMA are engineered by exploiting side‐chain–dependent amphiphilicity and tunable thermoresponsive behavior. These single‐material nanocarriers encapsulate diverse hydrophobic drugs with high efficiency, retain therapeutic activity, improve in vivo efficacy, and evade anti‐PEG antibodies.
Parul Sirohi, Brooke E. Silverstein, Yulia Shmidov, Sonal Deshpande, Joy Tong, Yvonne Y. Ma, Chinmay S. Potnis, Soumen Saha, Xinghai Li, Max R. Ney, Sarah Y. Kim, Joshua J. Milligan, Lixin Fan, Matthew L. Becker, Daniel Reker, Ashutosh Chilkoti   +15 more
wiley   +1 more source

Cooperative Friendly Jamming Techniques for Drone-Based Mobile Secure Zone

Sensors, 2022
Threats of eavesdropping and information leakages have increased sharply owing to advancements in wireless communication technology. In particular, the Internet of Things (IoT) has become vulnerable to sniffing or jamming attacks because broadcast ...
Ga-Hye Jeon, Ji-Hyun Lee, Yeon-Su Sung, Hyun-Ju Park, You-Jin Lee, Sun-Woo Yun, Il-Gu Lee   +6 more
doaj   +1 more source

Relay-Aided Secure Broadcasting for Visible Light Communications

, 2019
A visible light communication broadcast channel is considered, in which a transmitter luminaire communicates with two legitimate receivers in the presence of an external eavesdropper.
Arafa, Ahmed, Panayirci, Erdal, Poor, H. Vincent   +2 more
core   +1 more source