Results 61 to 70 of about 10,801 (245)

A Simple Snowfall Retrieval Algorithm for the GPM Dual‐Frequency Precipitation Radar: Development and Validation With OLYMPEX Campaign Observation

open access: yesEarth and Space Science
The current operational algorithm for the Ku‐ and Ka‐band Dual‐frequency Precipitation Radar (DPR) onboard the Global Precipitation Measurement (GPM) satellite, which does not effectively utilize Ka‐band radar, underestimates snowfall amount.
S. Akiyama   +3 more
doaj   +1 more source

A Bottom‐Up Design Framework for Multifunctional Lattice Metamaterials

open access: yesAdvanced Science, EarlyView.
This study introduces a generative AI framework for designing multifunctional lattice metamaterials. The method combines 3D Gaussian voxel generation with deep learning, enabling greater design freedom and structural performance. The optimized lattice metamaterials achieve enhanced energy absorption by 40–200% compared to conventional structures and ...
Zongxin Hu   +13 more
wiley   +1 more source

Combining the Pitcher and Lotus Plant: Supericephobic and Superhydrophobic Silicone Films

open access: yesAdvanced Science, EarlyView.
Based on bench‐top nanomolding of polydimethylsiloxane (PDMS) with optimized silicone oil content, we developed hierarchically structured silicone films by essentially combining the properties of the lotus and pitcher plant; particularly we are able to achieve water contact angle as high as 171° and ice adhesion strength as low as 11.5 kPa (i.e ...
Cliff L. W. Ng   +4 more
wiley   +1 more source

Aircraft Observations of Aerosol Properties and Their Impact on Cloud Droplets in Gansu Province

open access: yes应用气象学报
Aerosol-cloud interaction has significant influences on radiation balance, water cycle and energy cycle of earth-air system. Sources of aerosols in Gansu Province are complex, involving both natural and anthropogenic activities. Based on typical aircraft
Wang Yanfeng   +6 more
doaj   +1 more source

Emission Fourier transform spectroscopy for remote sensingof the Earth's atmosphere

open access: yesAnnals of Geophysics, 2003
Fourier transform emission spectroscopy can make an important contribution in the observation of the Earth's atmosphere and in the investigation of atmospheric physics and chemistry.
B. Carli, U. Cortesi, G. Bianchini
doaj   +1 more source

Single‐Crystal PZT‐Driven Organic Piezo‐Phototronic Adaptive Transistors Toward Advanced Spatiotemporal Visual Computing

open access: yesAdvanced Science, EarlyView.
Here, we propose a single‐crystal PZT‐based piezo‐phototronic organic adaptive memory transistor (OAMT), achieving a record memory window capacity factor (γ) of 0.87 at a low SS of 200 mV/decade via efficient multi‐field control. The device achieves a high recognition accuracy ∼ 90% in neuromorphic simulations, demonstrates robust fault tolerance under
Chenhao Xu   +8 more
wiley   +1 more source

Research on Optimal Attitude of Large Deformation Airplane in Full‑Scale Aircraft Static Test

open access: yesTransactions of Nanjing University of Aeronautics and Astronautics
The accuracy of the full-scale aircraft static tests is greatly influenced by the aircraft attitude. This paper proposes an aircraft attitude optimization method based on the characteristics of the test.
ZHENG Jianjun   +4 more
doaj   +1 more source

Considerations for Atmospheric Measurements with Small Unmanned Aircraft Systems

open access: yesAtmosphere, 2018
This paper discusses results of the CLOUD-MAP (Collaboration Leading Operational UAS Development for Meteorology and Atmospheric Physics) project dedicated to developing, fielding, and evaluating integrated small unmanned aircraft systems (sUAS) for ...
Jamey D. Jacob   +3 more
doaj   +1 more source

A Laminating Strategy to Manyfold Enhance the Elastic Stretchability of Stretchable Electronics

open access: yesAdvanced Science, EarlyView.
We propose a laminating strategy that laminates a thick‐polymer layer onto the thin‐ribbon metallic structure. Using serpentine structures on soft and hard substrates as representative cases, this approach increases elastic stretchability by 3.5‐fold and 2.3‐fold.
Zanxin Zhou   +6 more
wiley   +1 more source

Fiber Bragg Gratings Sensors for Aircraft Wing Shape Measurement: Recent Applications and Technical Analysis

open access: yesSensors, 2018
The safety monitoring and tracking of aircraft is becoming more and more important. Under aerodynamic loading, the aircraft wing will produce large bending and torsional deformation, which seriously affects the safety of aircraft.
Zhen Ma, Xiyuan Chen
doaj   +1 more source

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