Results 231 to 240 of about 338,682 (292)

Multilevel Optical Programming of Intrinsic Vacancies in Solution‐Processed MoS2 Films for Retinomorphic Color Differentiation

Advanced Optical Materials, EarlyView.
Solution‐processed MoS2 films with intrinsic sulfur‐vacancy traps are used to integrate light sensing and memory in a simple two‐terminal pixel. Successive optical pulses program persistent, multilevel conductance states, while oxygen exposure enables rapid erasure.
Jihyun Kim, Jiyong Yoon, Gwang Ya Kim, Kijeong Nam, Jaewon Heo, In Soo Kim, Dongjoon Rhee, Donghee Son, Joohoon Kang   +8 more
wiley   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

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Optimal discus trajectories

Journal of Biomechanics, 2007
A general 3-D dynamic model for men's and women's discus flight is presented including precession of spin angular momentum induced by aerodynamic pitching moment. Dependence of pitching moment coefficient on angle of attack alpha is estimated from experiment.
Mont, Hubbard, Kuangyou B, Cheng
openaire   +2 more sources

Optimal javelin trajectories

Journal of Biomechanics, 1984
A companion paper has treated computer simulation of javelin flight using measured lift, drag and pitching moments. In the present paper we present, categorize and discuss the relative significance of various initial conditions in such a simulation. Since the differential equations describing flight are autonomous, the eventual javelin range and entry ...
openaire   +2 more sources

Disconnected optimal trajectories

Journal of Optimization Theory and Applications, 1969
The Bolza problem of the calculus of variations in modern control notation is extended in scope to include situations in which a number of subarcs occur in a variety of ways. The subarcs are allowed to be overlapping and/or separated. This allows for several subarcs to occur in the same interval of the independent variable and also admits subarcs which
Vincent, Thomas L., Mason, Joseph D.
openaire   +1 more source

Optimization of Switchable Systems’ Trajectories

Journal of Computer and Systems Sciences International, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bortakovsky, A. S., Uryupin, I. V.
openaire   +2 more sources

Optimal Analytic Multiburn Trajectories

AIAA Journal, 1972
Fuel optimal analytic multiburn transfer trajectories and shuttle rendezvous, assuming gravity vector linear dependence on position vector for burn ...
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Optimal Trajectories

2018
Optimal trajectories are analysed, covering both constant- and variable-specific-impulse cases. Primer vector is defined and illustrated. The first-order necessary conditions for an optimal constant-specific-impulse (CSI) trajectory were first derived by Lawden using classical Calculus of Variations.
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Optimal Trajectories for Spacecraft Rendezvous

Journal of Optimization Theory and Applications, 2007
This paper describes the formulation and numerical investigation of the thrust function required to minimize the time or fuel required for the terminal phase of the rendezvous of two spacecrafts. The particular rendezvous studied concerns a target spacecraft in a circular orbit and a chaser spacecraft with an initial separation distance and separation ...
MIELE A, WEEKS M, CIARCIA', Marco
openaire   +2 more sources