Results 101 to 110 of about 273,711 (279)

The Role of Ejecta in the Small Crater Populations on the Mid-Sized Saturnian Satellites

, 2011
We find evidence that crater ejecta play an important role in the small crater populations on the Saturnian satellites, and more broadly, on cratered surfaces throughout the Solar System. We measure crater populations in Cassini images of Enceladus, Rhea,
Alvarellos, Alvarellos, Alvarellos, Bart, Bierhaus, Bierhaus, Bierhaus, Bottke, Burns, Cintala, Crater Analysis Techniques Working Group, Davies, Dobrovolskis, Dundas, Durham, Edward B. Bierhaus, Giese, Hartmann, Horedt, Horedt, Housen, José Luis Alvarellos, Kempf, Kevin Zahnle, Kirchoff, Kirchoff, Levison, Lissauer, Lorenz, Luke Dones, Marchi, McEwen, McEwen, Melosh, Moore, Neish, Neukum, Plescia, Plescia, Plescia, Porco, Porco, Preblich, Richardson, Robbins, Schenk, Schenk, Schmidt, Schubert, Schultz, Smith, Smith, Snodgrass, Stern, Thomas, Vickery, Weiler, Wood, Zahnle, Zahnle, Zahnle, Zahnle   +61 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Estimation of Propellant Mass Requirements for Thruster-Driven Momentum Exchange Tether Deployer Vehicles

Aerospace
This article outlines a general approach to determining propellant mass requirements for operating a momentum exchange tether (MET), the rotation of which is driven by traditional thrusters for rideshare payload deployments.
Ben Campbell, Lawrence Dale Thomas
doaj   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Nano and Micro satellites as the Pillar of the “New Space” Paradigm

Havacılık ve Uzay Teknolojileri Dergisi, 2020
Six decades after the launch of the first satellite in 1957, space business and space technologies are taking a new turn: From big to small, from primarily government to extensively private sector and from a few players to profusely many.
Fuat İnce
doaj  

Statistical mapping of sheet aiquile SE-20-9 (national map) making use of ERTS images [PDF]

New possibilities of remote sensing by means of satellites to do research on natural resources are reported. These images make it possible to carry out integrated studies of natural resources in the shortest time possible and with small investments ...
Brockman, C. E., Castro, A. F., Torrez, J. G.   +2 more
core   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Structures for small scientific satellites [PDF]

Structures and design for scientific ...
Baumann, R. C., Madey, J. M.
core   +1 more source