Results 51 to 60 of about 330,769 (355)

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

EPRSA: interference resource scheduling algorithms for air-ground communication networks

Scientific Reports
In recent years, the rapid development of air-ground communication networks has posed challenges to traditional interference methods. However, existing research rarely involves joint air-ground distributed communication interference, and there is a lack ...
Wenpeng Wu, Zhenhua Wei, Haiyang You, Xiaoqing Li, Jianwei Zhan, Zhaoguang Zhang   +5 more
doaj   +1 more source

A method for comparing the performance of power plants for vertical flight [PDF]

, 1952
A new method of power plant selection for vertical flight is proposed. It can be used to determine whether the performance of a rocket design can be improved by substituting for the rocket motor a different power plant such as a ramjet.
Tsien, H. S.
core   +1 more source

Nanocarbon from Rocket Fuel Waste: The Case of Furfuryl Alcohol-Fuming Nitric Acid Hypergolic Pair

Nanomaterials, 2020
In hypergolics two substances ignite spontaneously upon contact without external aid. Although the concept mostly applies to rocket fuels and propellants, it is only recently that hypergolics has been recognized from our group as a radically new ...
Nikolaos Chalmpes, A. Bourlinos, Smita Talande, A. Bakandritsos, Dimitrios Moschovas, Apostolos Avgeropoulos, M. Karakassides, D. Gournis   +7 more
semanticscholar   +1 more source

Tin Oxide‐Anchored MXene Composites for Enhanced Hydrogen Evolution in Alkaline Media

Advanced Materials Interfaces, EarlyView.
The schematic illustrates a SnO2/MXene heterostructure for efficient hydrogen evolution. SnO2 nanoparticles are uniformly anchored on conductive MXene nanosheets, enhancing charge transfer and catalytic activity. The MXene substrate provides high electrical conductivity and abundant active sites, while SnO2 facilitates water adsorption and dissociation.
Pratik Shinde, Kassa Belay Ibrahim, Tofik Ahmed Shifa, Alessandro Gradone, Pankaj Kumar, Giriyapura Prabhukumara Darshan, Paolo Moras, Elisa Moretti, Alberto Vomiero   +8 more
wiley   +1 more source

Droplet impact dynamics on the surface of super-hydrophobic BNNTs stainless steel mesh

Scientific Reports
The ‘gas‒liquid‒solid’ mechanism annealing method was used to create a superhydrophobic boron nitride nanotube (BNNT) stainless steel mesh in a tube furnace at 1250 °C in an NH3 environment.
Lie Zhang, Yongbao Feng, Liang Li, Shuzhi Li, Bo Yuan, Xiaoxia Han, Zhenxin He   +6 more
doaj   +1 more source

Steerable solid propellant rocket motor Patent [PDF]

, 1964
Steerable solid propellant rocket motor adapted to effect payload orientation as multistage rocket stage or reduce velocity as ...
Raggio, C. W., Jr.
core   +1 more source

Growth temperature influences postharvest glucosinolate concentrations and hydrolysis product formation in first and second cuts of rocket salad

Postharvest Biology and Technology, 2020
Highlights • Extreme high temperature reduces rocket growth, regrowth, and survivability.• Glucosinolate and hydrolysis products of rocket between cuts are determined.• Highest glucosinolate concentrations were observed in first and second cuts at 40 °C.•
J. Jasper, C. Wagstaff, Luke Bell
semanticscholar   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Droplet Agglomeration in Rocket Nozzles Caused by Particle Slip and Collision [PDF]

, 1967
Droplet Agglomeration in Rocket Nozzles Caused by Particle Slip and Collision. The development of the particle mass spectrum in a rocket nozzle is investigated under the assumption that droplet growth by collision and agglomeration is the dominant ...
Marble, Frank E.
core