Results 91 to 100 of about 227,491 (296)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Stiffness Analysis of Cable-Driven Parallel Robot for UAV Aerial Recovery System

Actuators
Unmanned Aerial Vehicle (UAV) aerial recovery is a challenging task due to the limited maneuverability of both the transport aircraft and the UAV, making it difficult to establish an effective capture connection in the airflow field. In previous studies,
Jun Wu, Honghao Yue, Xueting Pan, Yanbing Wang, Yong Zhao, Fei Yang   +5 more
doaj   +1 more source

Hoop/column antenna deployment mechanism overview [PDF]

, 1985
The hoop/column antenna program is directed toward the development of a cost effective, large area, self deploying reflector antenna system. Large surface area antenna systems are required in future space missions involving improved land communications ...
Allen, B. B., Butler, D. H.
core   +1 more source

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

Advanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi, Mahyar Panahi‐Sarmad, Ahmadreza Ghaffarkhah, Vahid Rad, Masoud Soroush, Thomas P. Russell, Orlando J. Rojas, Mohammad Arjmand   +7 more
wiley   +1 more source

Mechanistic insights into corrosion-induced strength deterioration grouting anchor cable in deep coal mines: an integrated model for enhanced prediction

Results in Engineering
The corrosive environments of deep coal mines in saline-alkali regions accelerates the anchor cable corrosion and induces the strength degradation in grouting anchor cable.
Xuetong Yang, Weikang Wang, Sitao Zhu, Linna Yang, Meng Wang, Ze Liu, Liyuan Liu, Chun Zhu   +7 more
doaj   +1 more source

Two lighter than air systems in opposing flight regimes: An unmanned short haul, heavy load transport balloon and a manned, light payload airship [PDF]

, 1975
Lighter Than Air vehicles are generally defined or categorized by the shape of the balloon, payload capacity and operational flight regime. Two balloon systems that are classed as being in opposite categories are described.
Pohl, R. A.
core   +1 more source

Readout for intersatellite laser interferometry: Measuring low frequency phase fluctuations of HF signals with microradian precision

, 2015
Precision phase readout of optical beat note signals is one of the core techniques required for intersatellite laser interferometry. Future space based gravitational wave detectors like eLISA require such a readout over a wide range of MHz frequencies ...
Anders Enggaard, Carter B., Christian Diekmann, Gerhard Heinzel, Ioury Bykov, Jens Reiche, Joachim Kullmann, Juan José Esteban Delgado, Karsten Danzmann, Martin Suess, Michael Tröbs, Nils Christopher Brause, Oliver Gerberding, Oliver Jennrich, Simon Barke, Søren Møller Pedersen, Thomas S. Schwarze, Torben Rasmussen, Torben Vendt Hansen, Tröbs M., Wannamaker R. A., Zoran Sodnik   +21 more
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Force reflecting hand controller [PDF]

, 1993
A universal input device for interfacing a human operator with a slave machine such as a robot or the like includes a plurality of serially connected mechanical links extending from a base.
Mcaffee, Douglas A., Snow, Edward R., Townsend, William T.   +2 more
core   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source