Results 91 to 100 of about 134,946 (297)

Research on a New RCM Positioning Mechanism of Minimally Invasive Surgery Robot

Jixie chuandong, 2020
The surgical robots with remote motion center （RCM） play an important role in the field of minimally invasive surgery （MIS）. Considering the advantages and disadvantages of double parallelogram and double synchronous belt RCM mechanism， a new RCM ...
Baoping Ma, Fan Zhang, Zhaoying Zhang, Xun Zou, Guosheng Zhang   +4 more
doaj  

Tidal Evolution of Exoplanets

, 2010
Tidal effects arise from differential and inelastic deformation of a planet by a perturbing body. The continuous action of tides modify the rotation of the planet together with its orbit until an equilibrium situation is reached.
Correia, Alexandre C. M., Laskar, Jacques   +1 more
core   +1 more source

Thermal Tides in Fluid Extrasolar Planets

, 2009
Asynchronous rotation and orbital eccentricity lead to time-dependent irradiation of the close-in gas giant exoplanets -- the hot Jupiters. This time-dependent surface heating gives rise to fluid motions which propagate throughout the planet.
Aristotle Socrates, Arras, Batygin, Bodenheimer, Burrows, Cowling, Dobbs-Dixon, Fabrycky, Fortney, Goodman, Lynden-Bell, Newcomb, Phil Arras, Showman, Unno, Winn, Zahn, Zahn   +17 more
core   +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

The Fate of Sub-micron Circumplanetary Dust Grains II: Multipolar Fields

, 2012
We study the radial and vertical stability of dust grains launched with all charge-to-mass ratios at arbitrary distances from rotating planets with complex magnetic fields.
Acuna, Bagenal, Brooks, Burns, Burns, Cao, Connerney, Connerney, Danby, Daniel Jontof-Hutter, de Pater, de Pater, Dessler, Douglas P. Hamilton, Graps, Hamilton, Hamilton, Hamilton, Hamilton, Hamilton, Hamilton, Hamilton, Hedman, Horányi, Horányi, Horányi, Horányi, Horányi, Horányi, Jontof-Hutter, Juhász, Krüger, Krüger, Mendis, Mitchell, Ness, Northrop, Northrop, Northrop, Ockert-Bell, Owen, Roberts, Schaffer, Schaffer, Schaffer, Showalter, Showalter, Throop, Valk   +48 more
core   +1 more source

Region‐to‐Region Unidirectional Connection In Vitro Brain Model for Studying Directional Propagation of Neuropathologies

Advanced Functional Materials, EarlyView.
A unidirectional cerebral organoid–organoid neural circuit is established using a microfluidic platform, enabling controlled directional propagation of electrical signals, neuroinflammatory cues, and neurodegenerative disease–related proteins between spatially separated organoids.
Kyeong Seob Hwang, Hui‐Wen Liu, Hyogeun Shin, Hyun Wook Kang, Minjin Kang, Jongbaeg Kim, Il‐Joo Cho, Nakwon Choi, Seok Chung, Hong Nam Kim   +9 more
wiley   +1 more source

Lagrangian Modelling and Motion Stability of Synchronous Generator-based Power Systems

CSEE Journal of Power and Energy Systems
This paper proposes to analyze the motion stability of synchronous generator-based power systems using a Lagrangian model derived in the configuration space of generalized position and speed.
Feng Ji, Lu Gao, Chang Lin
doaj   +1 more source

The effect of support flexibility and damping on the dynamic response of a single mass flexible rotor in elastic bearings [PDF]

The dynamic unabalance response and transient motion of the single mass Jeffcott rotor in elastic bearings mounted on damped, flexible supports are discussed.
Gunter, E. J., Kirk, R. G.
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Rotor response for transient unbalance changes in a nonlinear simulation [PDF]

Transient unbalance shifts were determined not to excite a rotor instability in the high pressure turbomachinery of the Space Shuttle Main Engine using the current rotor dynamic models.
Beatty, R. F., Hine, M. J., Landis, C. E.   +2 more
core   +1 more source