Results 171 to 180 of about 12,435 (301)

Reply to Benito et al.: Problems in the Cretaceous evolution of the avian palatobasal joint. [PDF]

Proc Natl Acad Sci U S A
Wilken AT, Sellers KC, Davis JL, Witmer LM, Holliday CM.   +4 more
europepmc   +1 more source

System Identification of Robotic Fish Swimming Reveals Roles of Reactive and Resistive Fluid Force in Two Distinct Swimming Gaits

Advanced Intelligent Systems, EarlyView.
System identification and particle image velocimetry reveal how a modular robotic fish changes thrust physics across gaits. A traveling‐wave, fish‐like motion draws thrust from resistive drag, while a resonant standing‐wave motion is driven by reactive pressure.
Donghao Li, Hankun Deng, Kundan Panta, Azar Panah, Bo Cheng   +4 more
wiley   +1 more source

Braincase of Siamraptor suwati and insights into the cranial anatomy of Carcharodontosauria. [PDF]

PLoS One
Hattori S, Chokchaloemwong D, Kawabe S, Cuesta E, Shibata M, Miyata K, Azuma Y.   +6 more
europepmc   +1 more source

A Soft Robotic Jellyfish with Decoupled Actuators for Agile 3D Locomotion

Advanced Intelligent Systems, EarlyView.
This study presents a soft robotic jellyfish featuring a functionally decoupled actuation architecture. By separating propulsion, steering, and vertical regulation into independent modules, the robot overcomes conventional coupled‐motion limitations. Utilizing a passive‐valve‐based differential drag strategy and lateral water jets, it achieves agile 3D
Zhuoheng Li, Ze Huang, Salvador Pané, Josep Puigmartí‐Luis, Jiwan Kim, Ji‐Hun Bae, Bumjin Jang   +6 more
wiley   +1 more source

A new lungfish (Ceratodontoidei, Dipnoi) from the Early Jurassic of Chongqing, China. [PDF]

Sci Rep
Luo B, Xu GH, Ren TC, Ma XY, Wang QD, Qiao T, Tan FT, Tan Y, Wei GB.   +8 more
europepmc   +1 more source

SiOx‐Based Probabilistic Bits Enabling Invertible Logic Gate for Cryptographic Applications

Advanced Intelligent Systems, EarlyView.
To enable lightweight hardware encryption and decryption, a Ti/SiOx/Ti threshold switching device is engineered to generate controllable stochastic oscillations. By tuning the input voltage, the device produces a programmable spike probability governed by intrinsic switching dynamics, enabling probabilistic bits that construct an invertible ...
Jihyun Kim, Hyeonsik Choi, Jiyong Woo
wiley   +1 more source

Concentric Rheostat Decoupled 3D Force‐Sensing Module for Smart Table Tennis Training

Advanced Intelligent Systems, EarlyView.
A 3D‐printed sensor array intrinsically decouples normal and shear forces through a unique concentric structural design. By integrating piezoresistive, sliding area‐varying capacitive, and concentric rheostat mechanisms, the 12‐sensor module achieves high‐resolution 3D force mapping without complex algorithms.
Zhe Liu, Kunlin Wu, Bingrui Sim, Wenjie Lai, Xingyu Chen, Jiajun Liu, Yifan Wang, Soo Jay Phee   +7 more
wiley   +1 more source

A large tyrannosaurid from the Late Cretaceous (Campanian) of North America. [PDF]

Sci Rep
Longrich NR, Dalman S, Lucas SG, Fiorillo AR.   +3 more
europepmc   +1 more source

Primitive stability and Bowditch conditions for rank 2 free group representations [PDF]

We introduce two different properties of representations of the free group of rank 2 into the group of hyperbolic isometries PSL(2,C): BQ conditions and primitive stability.
Lupi, Damiano
core  

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

Advanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison, Kevin Nadaud, Josquin Harrison, Guillaume F. Nataf, Laura Bégon‐Lours   +4 more
wiley   +1 more source