Results 91 to 100 of about 393,869 (297)

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

open access: yesAdvanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim   +10 more
wiley   +1 more source

Modeling and Dynamics Analysis Belt Drive in Planetary Transmission System

open access: yesJixie chuandong, 2015
For the problem of planetary transmission system that the complex system structure in the course of using,high manufacture precision and limitations strong during long-distance power transmission process.According to the traditional characteristics of ...
Qi Xuemei
doaj  

Study on Nonlinear Dynamics Characteristic of Two-stage Planetary Gear Train

open access: yesJixie chuandong, 2020
The translation and torsion coupled strong nonlinear dynamics model of two-stage planetary gear transmission system is established, and the nonlinear factors such as time-varying meshing stiffness, tooth side clearance and meshing error are introduced ...
Xiaolu Leng   +3 more
doaj  

Exocomets size distribution in the [Formula: see text] Pictoris planetary system. [PDF]

open access: yesSci Rep, 2022
Lecavelier des Etangs A   +10 more
europepmc   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

Oxygenation, Life, and the Planetary System during Earth's Middle History: An Overview. [PDF]

open access: yesAstrobiology, 2021
Lyons TW   +4 more
europepmc   +1 more source

Planetary Geology: Goals, Future Directions, and Recommendations [PDF]

open access: yes
Planetary exploration has provided a torrent of discoveries and a recognition that planets are not inert objects. This expanded view has led to the notion of comparative planetology, in which the differences and similarities among planetary objects are ...

core   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Analysis of Load Sharing Performance of Planetary Gear Reducer in Electric Vehicle Hub Motor

open access: yesJixie chuandong, 2017
As for the floating planetary gear reducer in hub motor,a dynamics equation of dual floating planetary transmission system is established,and then the calculation formula of load sharing coefficient is deduced.
Zhang Jiang, Qing Xunpeng, Chen Haoran
doaj  

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti   +11 more
wiley   +1 more source

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