Results 91 to 100 of about 674,158 (355)

Single grid accelerator for an ion thrustor [PDF]

, 1973
A single grid accelerator system for an ion thrustor is discussed. A layer of dielectric material is interposed between this metal grid and the chamber containing an ionized propellant for protecting the grid against sputtering ...
Margosian, P. M., Nakanishi, S.
core   +1 more source

Circumventing the radiation pressure barrier in the formation of massive stars via disk accretion

, 2010
We present radiation hydrodynamics simulations of the collapse of massive pre-stellar cores. We treat frequency dependent radiative feedback from stellar evolution and accretion luminosity at a numerical resolution down to 1.27 AU.
Beltrán, Beuther, Beuther, Beuther, Beuther, Beuther, Beuther, Boley, Cesaroni, Chini, Davis, Duschl, Gammie, Henning, Henrik Beuther, Hosokawa, Hubert Klahr, Kahn, Keto, Klahr, Krumholz, Krumholz, Krumholz, Landau, Larson, Lyder, McKee, Mignone, Ossenkopf, Rolf Kuiper, Schreyer, Shakura, Shu, Thomas Henning, Truelove, Vaidya, Wu, Yorke, Yorke, Zhang, Zhang, Zhang, Zhang   +42 more
core   +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

Characteristics Evaluation and Coordinated Control Strategy of Power-Electronics-Based MMC-HVDC Systems Connected with Wind Farms

Applied Sciences
Modular multilevel converter–high-voltage direct current (MMC-HVDC) systems are a key technology for integrating large-scale offshore wind farms due to their flexibility, controllability, and decoupled active and reactive power characteristics.
Lin Xu, Chang Liu, Jingyi Zhang, Zhen Tian, Pan Feng, Meng Huang   +5 more
doaj   +1 more source

CMS Data Analysis: Current Status and Future Strategy

, 2003
We present the current status of CMS data analysis architecture and describe work on future Grid-based distributed analysis prototypes. CMS has two main software frameworks related to data analysis: COBRA, the main framework, and IGUANA, the interactive ...
Innocente, Vincenzo
core   +2 more sources

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

Optimal Configuration for Photovoltaic and Energy Storage in Distribution Network Using Comprehensive Evaluation Model

Energies
To enhance the efficiency of renewable energy consumption and reduce reliance on fossil fuels, the study addresses the challenges of distributed photovoltaic and energy storage integration in distribution networks, such as voltage fluctuations, safety ...
Rui Gao, Dan Wang, Chengxiong Mao, Bin Liu, Bingzhao Zhu, Jiawei Huang, Shengjun Wu   +6 more
doaj   +1 more source

Disk wind feedback from high-mass protostars

, 2019
We perform a sequence of 3D magnetohydrodynamic (MHD) simulations of the outflow-core interaction for a massive protostar forming via collapse of an initial cloud core of $60~{M_\odot}$.
Staff, Jan E., Tan, Jonathan C., Tanaka, Kei E. I.   +2 more
core   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Innowacyjne rozwiązania techniczne i technologiczne w obszarze energetyki rozproszonej – podsumowanie sesji technicznej I Kongresu Energetyki Rozproszonej

Energetyka Rozproszona.pl
W artykule podsumowano obrady jednej z sesji I Kongresu Energetyki Rozproszonej dotyczącej innowacyjnych rozwiązań technicznych i technologicznych w obszarze energetyki rozproszonej.
Andrzej Firlit
doaj   +1 more source