Results 71 to 80 of about 8,216,256 (334)

High-precision angle adaptive control simulation of synchronous motor for automatic lifting and boarding equipment of aircraft platform

Scientific Reports, 2023
In order to improve the accuracy and adaptability of the Angle control of the aircraft platform automatic lifting and boarding synchronous motors, the high precision Angle adaptive control method of the aircraft platform automatic lifting and boarding ...
Zhuo Zhang
doaj   +1 more source

Self-actuating grapple automatically engages and releases loads from overhead cranes [PDF]

, 1966
Two-piece grapple mechanism consisting of a lift knob secured to the load and a grapple member connected to the crane or lift automatically disengages the load from the overhead lifting device when the load contacts the ground.
Froehlich, J. A., Karastas, G. A.
core   +1 more source

Gerbes, M5-Brane Anomalies and E_8 Gauge Theory [PDF]

, 2004
Abelian gerbes and twisted bundles describe the topology of the NS-NS 3-form gauge field strength H. We review how they have been usefully applied to study and resolve global anomalies in open string theory. Abelian 2-gerbes and twisted nonabelian gerbes
A. Adams, A. Caetano, A. Grothendieck, A. Kapustin, A.L. Carey, Branislav Jurco, D.E. Diaconescu, D.S. Freed, E. Diaconescu, E. Witten, E. Witten, G.W. Moore, I.A. Bandos, J. Cheeger, J. Evslin, J. Evslin, J. Mickelsson, J.L. Brylinski, K. Gawedzki, K. Gawedzki, L. Breen, M. Bauer, M. J. Hopkins, M.K. Murray, N. Hitchin, P. Aschieri, P. Bouwknegt, P. Gajer, P.C. West, Paolo Aschieri, S. Johnson, V. Mathai   +31 more
core   +3 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

Multi-mode Motion Opening Mechanism Design for Aircraft Door Based on the Bricard Mechanism

Jixie chuandong, 2023
The aircraft door must be smoothly linked with the outer surface of the fuselage and realize the sealing function of the inner and outer boundaries of the fuselage at the same time.
Peng Renhui, Hang Lubin, Wu Borui, Wu Yang, Qiu Xudong   +4 more
doaj  

The Magnetised Bellows of Betelgeuse

, 2012
We present calculations for a magnetised hybrid wind model for Betelegeuse ($\alpha - $Orionis). The model is a direct application of our previously derived theory, combining a canonical Weber-Davis (WD) stellar wind with dust grains in the envelope of ...
Anand Thirumalai, Aurière, Bai, Bedijn, Bernat, Bester, Bester, Bloemhof, Bowen, Bowen, Brown, Buscher, Danchi, David, Davidson, Dorch, Draine, Draine, Elitzur, Elitzur, Falceta-Gonçalves, Falceta-Gonçalves, Fleischer, Gail, Guandalini, Harper, Harper, Harper, Harper, Hartmann, Hartmann, Haubois, Hindmarsh, Holzer, Jeremy S. Heyl, Jura, Lamers, Liberatore, Lim, Lobel, Lobel, Noriega-Crespo, Onaka, Perrin, Plez, Rodgers, Schröder, Schwarzschild, Skinner, Smith, Soker, Thirumalai, Ueta, Uitenbroek, Verhoelst, Vishniac, Weber, Wilson, Wilson, Woitke, Wood   +60 more
core   +1 more source

Naturally Large Cosmological Neutrino Asymmetries in the MSSM [PDF]

, 2000
A large neutrino asymmetry is an interesting possibility for cosmology, which can have significant observable consequences for nucleosynthesis and the cosmic microwave background.
A. Casas, A. D. Linde, A. D. Linde, A. Riotto, B. Bajc, B. Bajc, E. Copeland, E. D. Stewart, G. D. Coughlan, G. F. Giudice, G. Jungman, H. Kang, H. P. Nilles, I. A. Affleck, J. Ellis, J. Lesgourgues, J. Liu, J. McDonald, John McDonald, K. Benakli, K. Freese, K. Kohri, L. E. Ibanez, M. Dine, M. Dine, M. Dine, R. Foot, S. Sarkar, T. Goto, W. H. Kinney   +29 more
core   +2 more sources

Outperforming hummingbirds’ load-lifting capability with a lightweight hummingbird-like flapping-wing mechanism

Biology Open, 2016
The stroke-cam flapping mechanism presented in this paper closely mimics the wing motion of a hovering Rufous hummingbird. It is the only lightweight hummingbird-sized flapping mechanism which generates a harmonic wing stroke with both a high flapping ...
F. Leys, D. Reynaerts, D. Vandepitte
semanticscholar   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

The circulatory impact of dust from dust profile assimilation [PDF]

, 2018
We present results from a reanalysis of temperatures, dust columns and dust vertical profiles focussing on the assimilation, distribution and transport of dust in the martian atmosphere.
Holmes, J. A., Lewis, S. R., Patel, M. R., Streeter, P. M.   +3 more
core