Results 101 to 110 of about 410,560 (293)

Reverse pitch fan with divided splitter [PDF]

, 1977
A guide vane arrangement is described for improving gas turbine performance in the reverse thrust mode. This flow straightening method produces low losses in the fluid entering a core engine during reverse thrust operations and allows large supercharging
Smith, L. H., Jr.
core   +1 more source

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

Advanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore, Cristiano Pesce, Antonietta Greco, Claudia Pisante, Greta Avancini, Valentina Di Francesco, Yosi Shamay, Paolo Decuzzi   +7 more
wiley   +1 more source

Time-optimal Earth–Mars transfer using nuclear electric propulsion

Nuclear Engineering and Technology
This study focuses on the time-optimal end-to-end transfer trajectory between Earth and Mars using a low-thrust nuclear electric propulsion (NEP) system.
Su-Jin Choi, Morgan Choi
doaj   +1 more source

Configurations and Key Issues of Low Thrust Measurement for Microspacecrafts

MATEC Web of Conferences, 2018
Microthrusters on microspacecrafts are of interest and its output thrust must be characterized for a particular applicaton. The technology of micro thrust measurement can evaluate the performance of microthrusters.
Zhou Wei-jing, Ye Ji-fei, Li Nan-lei, Chang Hao   +3 more
doaj   +1 more source

Research on high thrust density permanent magnet vernier linear electric machine for gravity energy storage systems based on high saturation magnetic flux density materials [PDF]

AIP Advances
Linear electric machine (LEM)-based gravity energy storage (GES) exhibits significant application potential in ensuring stable grid operation and promoting clean, low-carbon energy transformation.
Jiaxin Yuan, Qingyun Wu, Hang Zhou
doaj   +1 more source

Designing Thermally Compatible Template‐Coating Pairs Toward Dimensionally Stable 3D Porous Carbons with Tunable Density

Advanced Functional Materials, EarlyView.
3D porous carbons with tunable density are crucial for energy storage, separations, and load‐bearing applications; however, their fabrication is often constrained by shrinkage during pyrolysis. This study optimizes and demonstrates the versatility of a template–coating pair strategy, producing materials that largely retain their shape and hierarchical ...
Adarsh Suresh, Manuela Campos, Kendrick Xie, Elektra Makris, Jonah Lovejoy, Maya El Shamsy, Chong Liu, Stuart J Rowan   +7 more
wiley   +1 more source

Lyapunov-based low-energy low-thrust transfers to the Moon

Acta Astronautica, 2019
Ponencia de la conferencia "69th International Astronautical Congress: #InvolvingEveryone, IAC 2018; Bremen; Germany; 1 October 2018 through 5 October 2018" This paper investigates the numerical computation of low-fuel low-thrust Earth-Moon transfers in a full ephemeris model incorporating the gravitational influence of the Sun, the Moon and all ...
Epenoy, Richard, Pérez-Palau, Daniel (1)   +1 more
openaire   +2 more sources

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

Advanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey, Arjen van den Berg, Sandra Ruiz Gomez, Claire Donnelly, Dirk Grundler, Sam Ladak   +5 more
wiley   +1 more source

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

Advanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang, Jinliang Lv, Yichun Lu, Hanfeng Ye, Xuan Zhang, Leonardo Cancellara, Nadezda Tarakina, Jiande Lin, Xin Gao, Oleksandr Savateev, Jiajia Cheng   +10 more
wiley   +1 more source

Thrust Measurement of an Integrated Multi-Sensor Micro-Newton Cold Gas Thruster

Aerospace
In recent years, cold gas thrusters have been successfully deployed in numerous missions, showcasing their exceptional reliability and enabling ultra-precise space operations across a broad thrust range.
Songcai Lu, Yong Gao, Haibo Tu, Xudong Wang, Xinju Fu, Gang Meng, Jun Long, Xuhui Liu, Yong Li   +8 more
doaj   +1 more source