Results 71 to 80 of about 56,430 (243)
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley +1 more source
Mucosa‐Interfacing Capsule for In Situ Sensing the Elasticity of Biological Tissues
A fundamental mechanism of palpating soft materials is reported to sense deep tissue elasticity in situ with minimal invasion using the interaction between the robot palpation unit and soft tissues. Both the robot locomotion and elasticity sensing functions are remotely controlled by external magnetic fields, while the sensing data are wirelessly ...
Kiyoung Kim+10 more
wiley +1 more source
In this work, spherical powders of refractory Ti‐V‐Zr‐Nb‐Mo‐Hf‐Ta‐W high‐entropy alloys (R‐HEAs) have been fabricated in a single step by plasma‐assisted centrifugal atomization. Loss of the heaviest elements in the composition is observed only at rotational speeds higher than 13 000 rpm due to solid‐solid centrifugal separation.
Marina Ciurans‐Oset+2 more
wiley +1 more source
This study presents a microfluidic wet spinning technique for producing ultrathin, templated collagen sheets with hierarchical organization at the microscale. The aligned collagen sheets replicate strain‐stiffening behavior associated with native cardiovascular tissues, sup cell attachment and contraction, and enable biofabrication of load‐bearing ...
Yuming Zhang+6 more
wiley +1 more source
Energy Focusing Metasurface Based Wireless Power Transfer System for Compact Unmanned Mobilities
A miniaturized wireless power transfer system integrates a metasurface lens, microstrip patch antenna, and RF‐CMOS rectifier to enhance mmWave reception efficiency and reduce size. Leveraging mmWave short wavelengths, it achieves high gain on small platforms. The system's polarization independence and wide‐angle reception ensure robust performance.
Wonwoo Lee+7 more
wiley +1 more source
Kirigami offers unique opportunities for guided morphing by leveraging the geometry of the cuts. This work presents inflatable kirigami crawlers created by introducing cut patterns into heat-sealable textiles to achieve locomotion upon cyclic pneumatic actuation. Inflating traditional air pouches results in symmetric bulging and contraction.
Seyidoğlu, Burcu+3 more
openaire +2 more sources
Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%
Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
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This study introduces a textile‐based capacitive pressure sensor featuring a triangular prism microstructure, which significantly enhances sensitivity to 5.52% kPa−¹ and supports a wide sensing range up to 330 kPa. The sensor's performance is validated in a 4‐channel capacitive pressure‐based force myography (cFMG) armband for gesture recognition ...
Rayane Tchantchane+3 more
wiley +1 more source
A Convoy of Magnetic Millirobots Transports Endoscopic Instruments for Minimally‐Invasive Surgery
The first electrocautery procedure performed by a team of millirobots (TrainBots) is presented. Enhanced with optimized feet, millirobots form a convoy to facilitate the collaborative transportation of wires and catheters through biological lumens, e.g. bile ducts. It opens up the possibility of using a team of mini‐robots in future endoscopic surgery.
Moonkwang Jeong+3 more
wiley +1 more source
Mechanochemistry: Fundamental Principles and Applications
In this review, the physicochemical principles of mechanochemistry are first clarified. Based on this foundation, the research basis and cutting‐edge scientific achievements in four areas are introduced: solid‐state organic chemistry, polymers, interface science, and biomechanochemistry.
Liang Dong+4 more
wiley +1 more source