Results 41 to 50 of about 3,762 (229)
An active nutation damper for spacecraft [PDF]
, 1977 An active nutation damping device, consisting of an angular accelerometer, a dc-motor-driven flywheel, and associated electronics, developed for spacecraft use is described.
Abercrombie, R. A., Flatley, T. W.
core +3 more sources
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
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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
Advanced Science, EarlyView.Grancalcin (GCA), a myeloid‐derived protein, is enriched in gingival tissues of periodontitis patients and mouse models. Through interactions with CD44 and activation of MYH9, GCA promotes NF‐κB signaling and exacerbates periodontal inflammation and bone loss.
Min Zhou +6 more
wiley +1 more source
Structure Design and Magnetic Field Simulation of Non-contact Nutation Reduction Motor
Jixie chuandong, 2019 In order to solve the problem of weak stiffness of flexible wheels and more mechanical friction in existing robot harmonic reducer motors, a new type of nutation reducer motor is proposed by combining nutation deceleration motion with magnetic meshing ...
Xiaqi Shan +3 more
doaj
, 2009 We study the polarized infrared emission by Polycyclic Aromatic Hydrocarbons (PAHs), when anisotropically illuminated by UV photons. PAH molecules are modeled as planar disks with in-plane and out-of-plane vibrational dipoles.
Allers +13 more
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Advanced Science, EarlyView.Cell‐sized high‐frequency ultrasound using a lithium niobate transducer, previously ignored in reactive oxygen species (ROS) production, generated intracellular ROS at frequencies higher than conventionally used. The intracellular generation of ROS by cell‐sized high‐frequency ultrasound revealed in this study is expected to be applied to innovative ...
Kotaro Fujishiro +4 more
wiley +1 more source
High‐Performance Recycling Biobased Photopolymers for 3D Printing
Advanced Science, EarlyView.By using biobased phenols like eugenol, novel biobased photopolymers containing dissociative phenol‐carbamate bonds are designed for 3D printing. Meanwhile, a “mixed‐monomer assisted recycling” strategy is proposed to recycle the materials. The resulting materials not only achieve high‐performance and excellent chemical recyclability simultaneously ...
Hang Zhou +12 more
wiley +1 more source
Does Contract Farming Improve Diet Quality? The Case of Senegalese Smallholders
Agribusiness, EarlyView.ABSTRACT The institution of contract farming has gained prominence in most developing countries owing to its numerous benefits. While several studies have already highlighted the welfare benefits of contract farming, very few have investigated the effects on diet quality, despite poor quality diets being a serious challenge in most parts of the ...
Francis E. Ndip, Takeshi Sakurai
wiley +1 more source
Analysis of the dynamics of a nutating body [PDF]
The equations for the displacement, velocity, and acceleration of a point in a nutating body are developed. These are used to derive equations for the inertial moment developed by a nutating body of arbitrary shape.
Anderson, W. J.
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