Results 31 to 40 of about 3,758 (238)
Evolution of an Atom Impeded by Measurement: The Quantum Zeno Effect
, 2001 A quantum system being observed evolves more slowly. This `'quantum Zeno effect'' is reviewed with respect to a previous attempt of demonstration, and to subsequent criticism of the significance of the findings. A recent experiment on an {\it individual}
Balzer, Chr. +2 more
core +2 more sources
Advanced Robotics Research, EarlyView.Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang +5 more
wiley +1 more source
Jixie chuandong, 2018 The nutation gear drive is a new type of planetary transmission with wide application prospects.In order to improve the serviceability of the nutation reducer,it is necessary to clarify its dynamic characteristics.
Xie Zhiyu +4 more
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Heisenberg-limited Rabi spectroscopy
, 2017 The use of entangled states was shown to improve the fundamental limits of spectroscopy to beyond the standard-quantum limit. In these Heisenberg-limited protocols the phase between two states in an entangled superposition evolves N-fold faster than in ...
Akerman, Nitzan +4 more
core +1 more source
Biohybrid Tendons Enhance the Power‐to‐Weight Ratio and Modularity of Muscle‐Powered Robots
Advanced Science, EarlyView.Biohybrid robots powered by skeletal muscle actuators are capable of dynamically adapting to environmental cues. This study takes inspiration from native muscle–tendon architecture by leveraging tough hydrogels as synthetic tendons for muscle actuators to enhance the power‐to‐weight ratio and modularity of biohybrid machines.
Nicolas Castro +11 more
wiley +1 more source
MathematicsIn view of the problems of the complex design, difficult machining, and high manufacturing cost of a traditional nutation reducer, this paper intends to design a nutation reducer and study its meshing performance.
Haoyu Chen, Qinghai Li, Chao Jia
doaj +1 more source
Chemical Upcycling of Polyphenylene Sulfide at Room Temperature
Advanced Science, EarlyView.Poly(phenylene sulfide) (PPS) is a semi‐crystalline super engineering plastic with exceptional properties. An iron‐photocatalyzed strategy is reported for chemical upcycling of PPS plastics at room temperature using 1,2‐dichloroethane. The method demonstrates remarkable efficiency across diverse PPS resins and post‐consumer composites, even within ...
Boning Gu, Chengliang Li, Xuefeng Jiang
wiley +1 more source
Reprogrammable Phase‐Transition Composites for Adaptive Dynamic Shape Morphing
Advanced Science, EarlyView.This paper reports a bio‐inspired reprogrammable phase‐transition composites that uses the stiffness change induced by reversible solid‐liquid phase transition to program and regulate the material deformation actuated by reversible liquid‐vapor phase transition, thereby achieving adaptive dynamic deformation in a controllable manner, and enabling ...
Yiding Zhong +8 more
wiley +1 more source
Climate Change Agricultural Comparative Advantage and the US Trade Balance
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Current science indicates that warming and elevated atmospheric CO2 will have ambiguous results for crop productivity depending on crop type and geographic location, whereas increased heat stress makes livestock and human labor less productive.
Elizabeth A. Fraysse +2 more
wiley +1 more source
Jixie chuandong, 2005 The 2K-H nutation mechanism of gear roller mesh is applied to the reducer which drive a petroleum exploitation screw pump under ground. A new nutating reducer was designed and manufactured, and through the test, satisfied result was acquired.
田方, 陶柯, 姜芳
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