Results 161 to 170 of about 327,954 (318)

A Unified Polymer Hydrogel Electrolyte Integrating Robust Adhesion, Self‐Healing, and Oxygen Permeability in Flexible Neutral Zn‐Air Batteries

open access: yesAdvanced Materials, EarlyView.
Flexible neutral Zn‐air batteries achieving a remarkable 3000‐cycle lifespan and withstanding 1000 bending cycles are reported. This performance is realized by employing a 3D physically cross‐linked neutral hydrogel electrolyte that integrates high adhesion, self‐healing, O2 permeability, and CO2 tolerance to resolve critical stability challenges ...
Zhenyu Sun   +3 more
wiley   +1 more source

Ryugu's nucleosynthetic heritage from the outskirts of the Solar System. [PDF]

open access: yesSci Adv, 2022
Hopp T   +91 more
europepmc   +1 more source

A near term pole-sitter using hybrid solar sail propulsion

open access: yes, 2010
In this paper we investigate optimal pole-sitter orbits using hybrid solar sail and solar electric propulsion(SEP). A pole-sitter is a spacecraft that is constantly above one of the Earth's poles. Optimal orbits, that minimize propellant mass consumption,
Ceriotti, M., McInnes, C.R.
core  

Strengthened Interfacial Coupling Between Self‐Assembled Monolayers and Bulk Heterojunctions Enables Thermally Stable Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Molecularly engineered self‐assembled monolayers (SAMs) featuring extended conjugated terminals facilitate superior interfacial coupling with the organic solar cell active layer. By physically anchoring the local morphology, this design suppresses thermal degradation, allowing devices to operate at 85°C for 150 h before degrading to 90% of their ...
Gengxin Du   +17 more
wiley   +1 more source

Exploring the depths of Solar System evolution. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Meyers SR, Peters SE.
europepmc   +1 more source

Analytical control laws for interplanetary solar sail trajectories with constraints

open access: yes, 2008
An indirect method is used to obtain an analytical control law for a spacecraft with a low-thrust propulsion system which is constituted by a solar sail coupled with a solar electric thruster. Constraints on the control inputs for such as the system need
Uchiyama, Kenji, McInnes, C.R.
core  

Efficient Osmotic Energy Conversion Enabled by Self‐Standing COF Membranes With Varied Sulfonic Acid Group Density

open access: yesAdvanced Materials, EarlyView.
Self‐standing, strong sulfonated covalent organic framework membranes with varied ionic‐group density are developed for osmotic energy conversion. Optimized charge‐governed nanochannels enable highly selective ion transport, delivering a power density of 24.53 W m−2 under seawater/freshwater salinity gradients.
Xi Ma   +5 more
wiley   +1 more source

A durable, plastic solar water heater

open access: yes, 1991
In remote areas of Australia the extreme climatic conditions and the high salt content of the water has led to the development of a plastic solar water heater.
Mathew, K., Anda, M., Kutay, C., Ho, G.
core  

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