Results 71 to 80 of about 1,654 (283)
Electrohydraulic Folding Ring Actuators for Radially Contracting Applications
Advanced Science, EarlyView.This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan +4 more
wiley +1 more source
The Maintenance of iCAP 6300 Inductively Coupled Plasma-Atomic Emission Spectrometrer
Yankuang ceshi, 2014 Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES) has played an important role in the detection of inorganic elements. After a period of usage, it was found that the solenoid valve for gas flow control shifted mechanically, and led to ...
ZHAO Qing-ling, LI Qing-cai
doaj +2 more sources
PLoS ONEIntroductionDuring the COVID-19 pandemic, ventilator shortages necessitated the development of new, low-cost ventilator designs. The fundamental requirements of a ventilator include precise gas delivery, rapid adjustments, durability, and user ...
Daniel Shyu +3 more
doaj +1 more source
A Review of Failure Modes and Safety Strategies of Lithium‐Ion Batteries from Materials to Systems
Advanced Science, EarlyView.A cascade‐aware framework is presented for lithium‐ion battery safety, linking thermal runaway initiation, acceleration, runaway reaction, and propagation with material‐, cell/pack‐, and system‐level interventions. By integrating failure mechanisms, quantitative safety indicators, and staged interception strategies, this review highlights how safer ...
Jin Hyeok Yang +8 more
wiley +1 more source
Advanced Science, EarlyView.A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen +15 more
wiley +1 more source
Advanced Science, EarlyView.A portable, sensorized, and controlled dexterous thumb‐enhanced glove helps stroke survivors swipe phones, twist caps, and perform other tasks. It is based on a powerful continuously, segmented origami dual chamber actuator to achieve active thumb CMC and MCP joint assistance and passively extend the IP joint.
Disheng Xie +10 more
wiley +1 more source
, 2017 Desde a sua invenção, o motor a combustão interna sofreu significantes evoluções, como redução do consumo de combustível, aumento da sua potência e durabilidade a um menor custo.
Thiodoro, Leonardo Andrioli
core +1 more source
Advanced Science, EarlyView.A fully soft, self‐reconfigurable gripper inspired by rapeseed flowers is monolithically 3D‐printed and electronics‐free, switching between diagonal and parallel finger arrangements. Establishing a self‐reconfigurable grasping paradigm, the gripper enables diverse manipulation tasks, including rotating bulbs, picking fruits, grasping cross‐scale ...
Qiping Xu +8 more
wiley +1 more source
Development of a pulatile VAD having a valve mimicking aortic valve [PDF]
拍動流を生成する左心補助人工心臓(LVAD)の開発を目的として，振動型ポンプに着目した．ここで，従来のポンプは逆止弁にJellyfish弁を用いてきたが，血液が弁を通過する際の剪断によって溶血の危険性が示唆された．そこで本研究では，大動脈弁を模擬した構造の逆止弁を用いることを提案し，ポンプシステムの構築およびポンプ特性の計測を行った．これを用いて送液実験を行った結果，本弁はjellyfish弁より高いポンプ性能を示した．しかし，ポンプの加振周波数によってP ...
20302226, 白井, 敦, Shirai, Atsushi
core
A Smart Fluid‐Hydraulic System Based on MRF Valve Control and Its Application in Flexible Grasping
Advanced Science, EarlyView.This study introduces a smart fluid hydraulic system using MRF valve control for flexible gripping. An MRF‐MSV with an integrated excitation coil and micro‐textured damping channels is designed and validated; micro‐texturing increases hydraulic resistance. Coupled with a soft actuator, the MRF‐MSV enables dynamic bending and grasping.
Linfeng Huo +5 more
wiley +1 more source