Results 81 to 90 of about 91,187 (349)

A Vast Thin Plane of Co-rotating Dwarf Galaxies Orbiting the Andromeda Galaxy

, 2013
Dwarf satellite galaxies are thought to be the remnants of the population of primordial structures that coalesced to form giant galaxies like the Milky Way.
A Klypin, A Koch, A. Dougal Mackey, A. R. Conn, Alan W. McConnachie, Annette M. N. Ferguson, Anthony R. Conn, AR Conn, AR Zentner, AW McConnachie, AW McConnachie, AW McConnachie, D Lynden-Bell, D Lynden-Bell, David Valls-Gabaud, DG Barnes, E Komatsu, EJ Tollerud, Geraint F. Lewis, J Wang, JC Richardson, Julio Navarro, Lawrence M. Widrow, M Metz, M Metz, M Metz, Mark Fardal, MG Lee, Michael J. Irwin, Michelle L. Collins, MLM Collins, MR Lovell, MS Pawlowski, Neil G. Ibata, Nicolas F. Martin, R. Michael Rich, Rodrigo A. Ibata, RP van der Marel, Scott C. Chapman, SR Majewski   +39 more
core   +2 more sources

Dual‐Peptide Nanoplatform: Mesoporous Silica Nanoparticles Functionalized With a Cell‐Penetrating Peptide and Loaded With Rationally Designed Antimicrobial Peptides for Tuberculosis Therapy

Advanced Healthcare Materials, EarlyView.
Machine learning–guided engineering of a plectasin‐derived peptide yields DC05, a potent antimycobacterial candidate. Encapsulation into tuftsin‐functionalized mesoporous silica nanoparticles enhances intracellular delivery, stability, and activity against Mycobacterium tuberculosis while maintaining low cytotoxicity and minimal hemolysis. The combined
Christian S. Carnero Canales, Cesar Augusto Roque‐Borda, Ana Carolina Cerqueira Negri, Oswaldo Ramirez Delgado, Letícia Oliveira Catarin Nunes, Flávia Aparecida Resende, Hernane Barud, Norival Alves Santos‐Filho, Saulo Santesso Garrido, Karen Cristina Oliveira, Alexandra Ivo de Medeiros, Rafael Miguel Sábio, Fernando Rogério Pavan   +12 more
wiley   +1 more source

15:1 Resonance effects on the orbital motion of artificial satellites [PDF]

Journal of Aerospace Technology and Management, 2011
The motion of an artificial satellite is studied considering geopotential perturbations and resonances between the frequencies of the mean orbital motion and the Earth rotational motion.
Jorge Kennety S. Formiga, Rodolpho Vilhena de Moraes   +1 more
doaj  

Earth rotation and polar motion from laser ranging to the moon and artificial satellites [PDF]

Earth-based laser ranging to artificial satellites and to the moon is considered as a technique for monitoring the Earth's polar motion and diurnal rotation. The kinematics of Earth rotation as related to laser ranging is outlined.
Aardoom, L.
core   +1 more source

Navigation satellites [PDF]

, 1964
Satellite navigation system - geodesy ...
Kershner, R. B.
core   +1 more source

From order to chaos in Earth satellite orbits

, 2016
We consider Earth satellite orbits in the range of semi-major axes where the perturbing effects of Earth's oblateness and lunisolar gravity are of comparable order.
Daquin, Jerome, Gachet, Fabien, Gkolias, Ioannis, Rosengren, Aaron J.   +3 more
core   +2 more sources

Satellites of the largest Kuiper Belt objects [PDF]

, 2006
We have searched the four brightest objects in the Kuiper Belt for the presence of satellites using the newly commissioned Keck Observatory Laser Guide Star Adaptive Optics system.
Bouchez, A. H., Brown, M. E., Campbell, R. D., Chin, J. C. Y., Conrad, A., Hartman, S. K., Johansson, E. M., Lafon, R. E., Le Mignant, D., Rabinowitz, D. L., Stomski, P. J., Jr., Summers, D. M., Trujillo, C. A., van Dam, M. A., Wizinowich, P. L.   +14 more
core   +2 more sources

Superconductor Magnetic Bearings Mounted on Artificial Satellite

, 2023
Yutaka Terao, Satsuki Okumura, Hiroyuki Ohsaki, Yuki SAKURAI, T. Matsumura, N. Katayama   +5 more
openalex   +2 more sources

Copolymers of Poly(Butylene Trans‐1,4‐Cyclohexanedicarboxylate)/Pripol as New Biomaterial Platform for Small Diameter Vascular Graft

Advanced Healthcare Materials, EarlyView.
Electrospun tubular scaffolds from novel PBCE‐based copolyesters and blends were designed as candidates for small‐diameter vascular grafts. They combine defect‐free architecture, blood‐compatible surfaces, and mechanical properties comparable to native vessels.
Edoardo Bondi, Gabriele Obino, Giulia Guidotti, Alberto Sensini, Martijn van Griensven, Antonio Junior Lepedda, Nadia Lotti, Lorenzo Moroni   +7 more
wiley   +1 more source

Preliminary Orbit Determination of Artificial Satellites: A Vectorial Sixth-Order Approach

Abstract and Applied Analysis, 2013
A modified classical method for preliminary orbit determination is presented. In our proposal, the spread of the observations is considerably wider than in the original method, as well as the order of convergence of the iterative scheme involved.
Carlos Andreu, Noelia Cambil, Alicia Cordero, Juan R. Torregrosa   +3 more
doaj   +1 more source