Results 191 to 200 of about 22,702,715 (393)

All‐3D‐Printed Multi‐Environment Modular Microrobots Powered by Large‐Displacement Dielectric Elastomer Microactuators

open access: yesAdvanced Materials, EarlyView.
Fully 3D‐printed modular microrobots capable of performing a broad range of tasks across diverse environments are demonstrated. The key breakthrough lies in the development of a large‐displacement microactuator for multi‐environment navigation and a mesoscale multimaterial 3D printing platform for on‐demand module fabrication.
Won Jun Song   +12 more
wiley   +1 more source

Research on Dynamic Characteristics of the Two-stage Planetary Gear Transmission System of TBM Reducers

open access: yesJixie chuandong
Tunnel boring machine (TBM) reducers are important components of TBM's cutter-head drive system. In order to reveal the dynamic characteristics of the two-stage planetary gear transmission system of the TBM reducer, the influence factors such as tooth ...
Xu Younan   +3 more
doaj  

Study on the Dynamics of Non-circular Planetary Gear Hydraulic Motor

open access: yesJixie chuandong, 2017
The structure and working principle of a new type of non-circular planetary gear hydraulic motor are introduced. The pitch curve and tooth profile of each gear within non-circular planetary gear system are programmed. A torsional vibration model is built
Wei Shuang, Li Dianqi, Liu Guanghui
doaj  

Advancing Tomographic Volumetric Printing Via Oxygen Inhibition Control: Improved Accuracy and Large‐Volume Capability

open access: yesAdvanced Materials, EarlyView.
Oxygen inhibition limits the printable volume and resolution in tomographic volumetric additive manufacturing using (meth)acrylate photoresins. This study presents a simple yet strategic formulation design using additives that regenerate active radicals from peroxyl radicals.
Yujie Zhang   +10 more
wiley   +1 more source

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

open access: yesAdvanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung   +15 more
wiley   +1 more source

Analysis of the Distribution and Transmission Law of Vibration Energy of Planetary Gear

open access: yesJixie chuandong, 2016
Based on a torsional- transverse coupling model of a 2K- H spur planetary gear,the formula of vibration energy of the planetary gear transmission system is derived.
Wu Yuchao   +4 more
doaj  

Fault Orientation Trumps Fault Maturity in Controlling Coseismic Rupture Characteristics of the 2021 Maduo Earthquake

open access: yesAGU Advances
Fault maturity has been proposed to exert a first order control on earthquake rupture, yet direct observations linking individual rupture to long‐term fault growth are rare.
Jing Liu‐Zeng   +13 more
doaj   +1 more source

Working Group for Planetary System Nomenclature (WGPSN): (Group de Travail Pour la Nomenclature du System Planetaire): (Committee of the Executive Committee) [PDF]

open access: bronze, 1996
K. Aksnes   +11 more
openalex   +1 more source

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