Results 251 to 260 of about 257,689 (300)

A 3D Printed Soft Robotic Gripper With a Variable Stiffness Enabled by a Novel Positive Pressure Layer Jamming Technology

IEEE Robotics and Automation Letters, 2022
In this research, a soft robotic gripper with a variable stiffness enabled by a novel positive pressure layer jamming technology was developed and fabricated in two materials using customized additive manufacturing.
George B. Crowley, Xianpai Zeng, H. Su
semanticscholar   +1 more source

Jamming (on) the Web

Computer Networks and ISDN Systems, 1997
Abstract The Web has become a dominant medium for the dissemination of information and, more recently, for collaborative work as well. The focus has been mainly on textual and graphical information, hardly addressing topics related to musical information.
Anton Eliëns, Martijn van Welie, Jacco van Ossenbruggen, Bastiaan Schönhage   +3 more
openaire   +1 more source

Variable Stiffness Devices Using Fiber Jamming for Application in Soft Robotics and Wearable Haptics

Soft Robotics, 2021
Variable stiffness actuation has applications in a wide range of fields, including wearable haptics, soft robots, and minimally invasive surgical devices.
S. Jadhav, Mohamad Ramzi Abdul Majit, Benjamin Shih, J. Schulze, M. Tolley   +4 more
semanticscholar   +1 more source

Jamming by shear

Nature, 2011
A broad class of disordered materials including foams, glassy molecular systems, colloids and granular materials can form jammed states. A jammed system can resist small stresses without deforming irreversibly, whereas unjammed systems flow under any applied stresses.
Dapeng, Bi, Jie, Zhang, Bulbul, Chakraborty, R P, Behringer   +3 more
openaire   +2 more sources

Intelligent Dynamic Spectrum Anti-Jamming Communications: A Deep Reinforcement Learning Perspective

IEEE wireless communications, 2022
Wireless devices are vulnerable to malicious jammers due to the openness of the spectrum environment. However, traditional anti-jamming approaches work on predetermined patterns, which are unable to resist dynamic jamming attacks. To capture the dynamics
Wen Li, Jin Chen, Xin Liu, Ximing Wang, Yangyang Li, Dianxiong Liu, Yuhua Xu   +6 more
semanticscholar   +1 more source

Multi-Antenna Covert Communication via Full-Duplex Jamming Against a Warden With Uncertain Locations

IEEE Transactions on Wireless Communications, 2021
Covert communication can hide the information transmission process from the warden to prevent adversarial eavesdropping. However, it becomes challenging when the location of warden is uncertain.
Xinying Chen, Wen Sun, C. Xing, Nan Zhao, Yunfei Chen, F. Yu, A. Nallanathan   +6 more
semanticscholar   +1 more source

Block jam

ACM SIGGRAPH 2002 conference abstracts and applications, 2002
Block Jam is a musical interface controlled by the arrangement of 24 tangible blocks. By positioning the blocks (Figure 1), musical phrases and sequences are created, allowing multiple users to play and collaborate.
Henry Newton Dunn, Hiroaki Nakano, James Gibson   +2 more
openaire   +1 more source

Compound Jamming Recognition via Contrastive Learning for Distributed MIMO Radars

IEEE Transactions on Vehicular Technology
As new active deception jamming technologies are emerging, it has become increasingly crucial to have accurate sensing of such jamming to facilitate effective radar anti-jamming and target detection, especially for distributed MIMO radars operating in ...
Yukai Kong, Senlin Xia, Luxin Dong, Xianxiang Yu, Guolong Cui   +4 more
semanticscholar   +1 more source

Dynamic Spectrum Anti-Jamming Communications: Challenges and Opportunities

IEEE Communications Magazine, 2020
Due to the openness of the transmission medium, it is necessary for radio systems to have anti-jamming abilities. Traditional anti-jamming methods such as sequence-based frequency hopping and direct sequence spread spectrum have shortcomings of low ...
Ximing Wang, Jinlong Wang, Yuhua Xu, Jin Chen, Luliang Jia, Xin Liu, Yijun Yang   +6 more
semanticscholar   +1 more source

JAM: a jammed-area mapping service for sensor networks

Proceedings. 2003 International Symposium on System-on-Chip (IEEE Cat. No.03EX748), 2004
Preventing denial-of-service attacks in wireless sensor networks is difficult primarily because of the limited resources available to network nodes and the ease with which attacks are perpetrated. Rather than jeopardize design requirements which call for simple, inexpensive, mass-producible devices, we propose a coping strategy that detects and maps ...
Anthony D. Wood, John A. Stankovic, Sang Hyuk Son   +2 more
openaire   +1 more source