Browse Articles

Daisuke Kitayama and colleagues report a transmissive metasurface using a single liquid-crystal layer with displaycompatible thickness. The device enables two-dimensional beam steering and focusing for next-generation high frequency wireless systems.

Testbed and pilot facilities allow studies in real-world conditions—especially when scale matters. They often bring together universities and industry partners across borders, creating a space where collaboration thrives.

Wireless powering of endovascular brain implants is challenging due to anatomical and safety constraints. Zhangyu Xu and colleagues demonstrate a wireless power transfer architecture that safely delivers  < 45 mW to an unmodified endovascular stent using a subcutaneous relay under realistic anatomical conditions.

Percutaneous nephrostomy (PCN) navigation can be improved using an endoscopic optical coherence tomography (OCT) probe. By using human kidney specimen, Chen Wang and colleagues report a probe that has been tested feasible for accurate tissue and blood vessel identification during PCN.

The lack of effective reinforcement has hindered the widespread use of 3D-printed concrete. The authors developed an in-process embedding technology for simultaneously printing concrete and flexible fiber-reinforced polymer (FRP) grids.

Joshua Dupont and colleagues report a tunable electromagnetic unit cell to remotely impose local resonance in conductive media. Analytical and experimental studies of the coupled system show selective wave blocking and modal vibration suppression

Magnetic microrobot control typically trades off between the simplicity of permanent magnets and the controllability of electromagnetic systems. Kiana Abolfathi and colleagues introduce a tunable magnetic end effector that combines permanent magnets with switchable, spatially controllable magnetic fields for precise medical manipulation.

Feihong Ren and colleagues report a rapid X-ray fluorescence–based method to identify the cathode chemistry of end-of-life lithium-ion batteries. This approach enables fast, non-destructive sorting and supports more efficient battery recycling.

Dashuai Chen and colleagues propose a graph-transformer framework that predicts gust-induced aerodynamic loads from sparse pressure measurements. The approach improves understanding of unsteady gust effects relevant to low-altitude flight.

Ziyi Hu and colleagues report a combined 3D reconstruction and simulation method to reveal the cause of the wiggling effect in advanced Dynamic Random Access Memory. This method provides a tool for etching process optimization to improve reliability

Can techniques for non-invasive diagnostic imaging on humans be used for reading of letters in closed books? Andreas Georg Berg and Alexander Karl Seewald demonstrate that Magnetic-Resonance-Microscopy established on a High-field human MR-scanner can visualize printed letters on superposed paper sheets.

Barney Miao and colleagues present a vibration-based sensing system that evaluates the quality of biopolymer-bound soil composite while wet. This enables monitoring of strength gain and early detection of defects to support efficient and scalable manufacturing.

Ilia Kuk and colleagues report a phase-bit computing that encodes information in phases of nonlinear topological acoustic waves. They implement Shor’s algorithm to factor 15 and 35 at room temperature, obtaining results consistent with the theory.

Chongwu Shao and colleagues report a motion-sensing, motion-compensated method for single-pixel imaging of moving targets. The method provides a single-pixel imaging framework for targets undergoing arbitrary two-dimensional motion.

Leonhard Schreiner and colleagues investigate how EEG electrode density shapes visual decoding performance, showing that denser arrays yield higher accuracy. Their findings delineate the practical limits of non-invasive EEG and offer guidance for selecting electrode count and spatial configuration

Contact robots assist humans in physical tasks but most existing controllers ignore future human actions. Abdelwaheb Hafs and colleagues propose a game-theoretic controller to fill this gap and enable optimal human-robot co-adaptation.

The growing data demands of the digital era reveal the limits of embedded memory. Sang Won Chung and colleagues advance in oxide semiconductor gain cell embedded dynamic random-access memory (DRAM), outlining materials and integration toward power efficient, back-end-of-line (BEOL) compatible memories for AI and edge computing.

Focused ultrasound can transiently open the blood–brain barrier for drug delivery, but the cellular responses of brain endothelial cells remain unclear. Rebecca Lynn Noel and colleagues report how low or high ultrasound pressures differently reorganize tight junction proteins, defining conditions for safe and reversible barrier opening.