Results 131 to 140 of about 812,239 (307)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

open access: yesAdvanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Role of Virtual Reality in Geography and Science Fieldwork Education [PDF]

open access: yes, 2018
Fieldwork has a long tradition in geography, and in certain sciences, notably geology, biology and environmental sciences. Fieldwork involves leaving the classroom and engaging in learning and teaching through first-hand experience of phenomena in ...
Minocha, Shailey   +2 more
core  

Scalable Manufacturing of Roll‐to‐Roll Slot‐Die Coated Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Roll‐to‐roll (R2R) slot‐die coating is emerging as a scalable pathway for perovskite solar cells. This mini‐review summarizes advances in ink design, drying control, and electrode integration that enable high‐efficiency flexible devices and modules. Challenges in throughput, stability, and sustainable processing are outlined, guiding the translation of
Farshad Jafarzadeh   +5 more
wiley   +1 more source

Patterns and Determinants of Recreational Behaviour in Port Harcourt, Rivers State, Nigeria [PDF]

open access: yes
By surveying a 5% probability sample of residential clusters, yielding 369 residents in Port Harcourt, Nigeria, this study has ascertained actual recreational behaviour of the residents; determinants of recreational behaviour; perceived adequacy ...
Aroyehun AYODELE   +3 more
core  

Pierceable, Water‐Resistant, and Transparent Nanofilm Electrodes Comprising Carbon Nanotubes for Long‐Term Monitoring of Plant Electrophysiology

open access: yesAdvanced Science, EarlyView.
Ultra‐flexible electrodes composed of single‐walled carbon nanotubes on a polymeric substrate exhibit excellent transparency, water resistance, and conformability to hairy surfaces. These non‐invasive nanofilms are easily pierced by trichomes, overcoming the structural barriers in plant electrophysiology.
Yusuke Hori   +3 more
wiley   +1 more source

Association between weekend catch-up outdoor duration and prevalence of myopia: evidence from a cross-sectional, multi-center study in China

open access: yesBMC Public Health
Background This study aimed at investigating the relationship between the weekend catch-up outdoor duration (WCOD) and prevalence of myopia among students in China.
Lu Ye   +23 more
doaj   +1 more source

Discovering spatiotemporal patterns of human outdoor activities with crowdsourced trajectory data

open access: yesGeo-spatial Information Science
The growing emphasis on human physical and mental well-being has led to a surge in outdoor activities, underscoring the need to explore outdoor activity patterns.
Ju Peng   +8 more
doaj   +1 more source

A High‐Performance and Fully Recyclable Supramolecular Nanofibrous Membrane for Multifunctional Air Filtration

open access: yesAdvanced Science, EarlyView.
A green, thermoreversible self‐assembly strategy yields a multifunctional and recyclable supramolecular nanofibrous membrane. Graphene oxide (GO) nanosheet acts as a heterogeneous nucleation‐templating agent, simultaneously modulating the supramolecular crystal packing while tailoring the nanofibrous architecture for elite performance.
Wenjing Sun   +6 more
wiley   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

open access: yesAdvanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng   +6 more
wiley   +1 more source

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