Results 61 to 70 of about 11,923 (261)

Ideas for a three-aircraft planetary observing fleet [PDF]

SPIE Proceedings, 2003
A new generation of research aircraft, based on modern mid-sized business jets, will provide access to upper regions of the atmosphere and remote regions of the planet not reachable by the current research aircraft. Equipped with extensive research modifications, modern instruments, and advanced air-to-ground communication systems, these new aircraft ...
Carlson, David, Schumann, Ulrich
openaire   +2 more sources

Bio‐Inspired Internal Stress Engineering for Microscale Surface Cracking in Sensitive Strain Sensors

Advanced Science, EarlyView.
This study presents a bio‐inspired internal stress engineering strategy to fabricate highly sensitive crack‐based strain sensors. By harnessing the internal expansion energy of microspheres and the thickness‐dependent brittle‐to‐ductile transition of ultrathin gold films, tunable microscale cracks are generated.
Jae Yeong Jang, Hanchul Cho, Young Jung
wiley   +1 more source

Aircraft contrails : observation and prediction

Everyone can predict contrail lifespan with sufficient accuracy of aircraft flying overhead. Needed is only a smartphone with Internet access and two charts. If it is so easy, pilots, airlines, and air traffic control can also do it. Every pilot can request Flight Level xyz to avoid warming contrails. Time for contrail management is now.
Briegert, Finn, Scholz, Dieter
openaire   +1 more source

Ionically Counter‐Programmable Phase‐Separation of Superstable Star‐Biopolyamide Coacervates for Electrothermally‐Responsive Pseudosolid Smart Windows

Advanced Science, EarlyView.
We develop bio‐based, star‐branched polyamides from itaconic acid and cadaverine with tunable lower critical solution temperature (LCST) transitions for dynamic solar modulation. Specific metal ion coordination with pyrrolidone moieties drives precise phase transitions via calcium‐induced salting‐in and sodium‐induced salting‐out mechanisms. Formulated
Jie Liu, Xiaotian Zhu, Jinjian Hou, Jinze Du, Mohammad Asif Ali, Maiko K. Okajima, Tatsuo Kaneko   +6 more
wiley   +1 more source

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

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, Zhang Qiang, Xi Lizong, Leng Wennan, Li Xia, Wang Rong, Huang Shan   +6 more
doaj   +1 more source

Enhancing Surface Icephobic Performance via Spontaneous Fracture Characteristics of Ice Crystals Regulated by Structural Scale Under Shear Flow Conditions

Advanced Science, EarlyView.
Aerodynamic shear induces spontaneous ice fracture and detachment on hydrophobic surfaces, governed by the interplay between initial ice‐crystal size, growth orientation, and interfacial adhesion. Unexpectedly, microstructural anchoring on superhydrophobic surfaces suppresses ice shedding.
Jiawei Jiang, Yizhou Shen, Yangjiangshan Xu, Junxian Xiang, Weilan Liu, Senyun Liu, Lingfeng Zhao, Jie Tao, Zhong Chen   +8 more
wiley   +1 more source

Positional Accuracy Assessment of Lidar Point Cloud from NAIP/3DEP Pilot Project

Remote Sensing, 2020
The Leica Geosystems CountryMapper hybrid system has the potential to collect data that satisfy the U.S. Geological Survey (USGS) National Geospatial Program (NGP) and 3D Elevation Program (3DEP) and the U.S.
Minsu Kim, Seonkyung Park, Jeffrey Irwin, Collin McCormick, Jeffrey Danielson, Gregory Stensaas, Aparajithan Sampath, Mark Bauer, Matthew Burgess   +8 more
doaj   +1 more source

Accelerating High‐Fidelity Airfoil Design via Physics‐Informed Video Diffusion Model

Advanced Science, EarlyView.
Physics‐informed video diffusion enables rapid inverse aerodynamic design by mapping target lift‐to‐drag response to airfoil geometries and full‐field flow distributions. Trained on 53 400 DNS samples, the model achieves over 90% fidelity with ∼30 s inference, while experimentally realized propeller designs demonstrate a practical pathway from ...
Yifeng Ai, Yijia Guo, Hongfu Zhang, Lei Zhou, Tiejun Huang, Weiqiu Chen, Xuhui He, Peng Guo, C. W. Lim, Lei Ma   +9 more
wiley   +1 more source

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

Transactions 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, JIN Feng, LIU Wei, ZHANG Yiming, GUO Qiong   +4 more
doaj   +1 more source

A Quantitative Lithium Inventory Framework for Anode‐Free Lithium Metal Batteries

Advanced Energy Materials, EarlyView.
A component‐resolved lithium inventory framework quantitatively tracks Li redistribution across the cell in anode‐free NMC622||Cu pouch cells throughout cycling. Three sequential degradation stages are identified: formation‐driven cathode Li depletion, midlife inactive Li0 accumulation, and late‐stage runaway SEI thickening. The cathode, as the sole Li
Wurigumula Bao, Alex Liu, Thomas S. Marchese, Yuanlong Bill Zheng, Weikang Li, Dhevathi Rajan Rajagopalan Kannan, Vallabha Rao Rikka, Vinay Premnath, Judith Jeevarajan, Ying Shirley Meng   +9 more
wiley   +1 more source