Results 41 to 50 of about 10,801 (245)

Aircraft Observations of Non-Precipitating Stratiform Cloud Icing Environments in Northwest China： A Winter Case Study

Gaoyuan qixiang
Aircraft icing is a high-impact weather phenomenon that poses a serious threat to aviation safety while also offering valuable opportunities for flight testing under complex meteorological conditions.Verification flight tests of civil aircraft in ...
Zelin WANG, Zhaoxin CAI, Junhui WU, Xu ZHOU   +3 more
doaj   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Racoro Extended-Term Aircraft Observations of Boundary Layer Clouds [PDF]

Bulletin of the American Meteorological Society, 2012
Small boundary-layer clouds are ubiquitous over many parts of the globe and strongly influence the Earths radiative energy balance. However, our understanding of these clouds is insufficient to solve pressing scientific problems. For example, cloud feedback represents the largest uncertainty amongst all climate feedbacks in general circulation models ...
Vogelmann, Andrew M., McFarquhar, Greg M., Ogren, John A., Turner, David D., Comstock, Jennifer M., Feingold, Graham, Long, Charles N., Jonsson, Haflidi H., Bucholtz, Anthony, Collins, Don R., Diskin, Glenn S., Gerber, Hermann, Lawson, R. Paul, Woods, Roy K., Andrews, Elisabeth, Yang, Hee-Jung, Chiu, J. Christine, Hartsock, Daniel, Hubbe, John M., Lo, Chaomei, Marshak, Alexander, Monroe, Justin W., McFarlane, Sally A., Schmid, Beat, Tomlinson, Jason M., Toto, Tami   +25 more
openaire   +2 more sources

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

Advanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann, Patrick Schiebel, David May   +2 more
wiley   +1 more source

Biobased Bionic Spider Silk via Electrostatic Complexation for Simultaneously Harvesting Atmospheric Water and Triboelectric Energy

Advanced Functional Materials, EarlyView.
Bio‐based bionic spider silk and spider web are first prepared using polyelectrolyte complexation technique for the simultaneous harvesting of water and triboelectric energy. The advantage of this process lies on entirely bio‐based materials, fully green water‐processable procedures, extremely high production rate (99.36%), excellent fog harvesting ...
Qin Chen, Araz Rajabi‐Abhari, Tongtong Fu, Haonan Zhang, Siqi Huan, Liang Chen, Jinchao Li, Cheng Hao, Yaping Zhang, Ning Yan   +9 more
wiley   +1 more source

Recognition of Aircraft Activities at Airports on Video Micro-Satellites: Methodology and Experimental Validation

Aerospace, 2022
The remote sensing satellite constellation based on micro-satellites is an important means to construct a global and all-sky earth observation system in the future.
Rui Zhang, Xueyang Zhang, Longlong Xiao, Jiayu Qiu   +3 more
doaj   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

Advanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang, Katja Kretschmer, Sharif Haidar, Georg Garnweitner, Daniel Schröder   +4 more
wiley   +1 more source

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

Advanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang, Jianyang Dong, Yongming Yao, Kaijin Hu, Jianxiong Cui, Yikai Luo, Jiawen Zhang, Shichao Niu   +7 more
wiley   +1 more source

Beyond visual-line-of-sight (BVLOS) drone operations for environmental and infrastructure monitoring: a case study in northwestern Canada

Drone Systems and Applications, 2023
Aerial drones typically operate over small geographic areas (
Jurjen van der Sluijs, Eyal Saiet, Carolyn N. Bakelaar, Andrew Wentworth, Robert H. Fraser, Steven V. Kokelj   +5 more
doaj   +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