Results 51 to 60 of about 256,041 (313)

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

The dynamic balance of import and export of zinc in Escherichia coli suggests a heterogeneous population response to stress [PDF]

open access: yesJournal of The Royal Society Interface, 2015
Zinc is essential for life, but toxic in excess. Thus all cells must control their internal zinc concentration. We used a systems approach, alternating rounds of experiments and models, to further elucidate the zinc control systems in Escherichia coli .
Takahashi, Hiroki   +10 more
openaire   +5 more sources

Assembly of Cell‐Seeded 3D Printed Hydrogel Modules with Perfusable Channel Networks

open access: yesAdvanced Functional Materials, EarlyView.
Macroscale assembly was utilized to prepare perfusable tissue constructs from individually 3D printed hydrogel modules with embedded branched channel networks and port arrays for cell seeding. Novel multi‐material bioreactors were fabricated to facilitate the gluing of individual modules and the perfusion culture of assembled modular constructs seeded ...
Zachary J. Geffert   +10 more
wiley   +1 more source

Estimating Prospects of Russian Foreign Trade under Crisis: Sanctions and Countersanctions [PDF]

open access: yesSHS Web of Conferences, 2019
Based on econometric modeling, we proved the good relationship between foreign trade turnover and trade balance with the GDP of the Russian Federation. We identified the varying opinions of the Russian and foreign scholars on the impact of sanctions and ...
Manushin D.V.
doaj   +1 more source

Commodity and Financial Networks in Regional Economics [PDF]

open access: yes, 2015
The article discusses the relationship between commodity-production and financial network structures in the regional economy as dual conjugate systems.
Berg, D. B.   +3 more
core   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

LFA: A Lattice Fourier Analyzer for Quantitative In Situ EC‐STM of Adsorbate–Substrate Superstructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Although electrochemical scanning tunneling microscopy provides atomic‐scale access to electrified interfaces, quantitative in situ and operando investigations suffer from drift‐induced distortions. This work introduces the Lattice Fourier Analyzer (LFA), which employs substrate‐anchored affine drift correction in reciprocal space to recover precise ...
Rafał Lewandków   +4 more
wiley   +1 more source

CONSIDERATIONS UPON THE TRENDS IN THE WOLRD SILK TRADE [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2018
The purpose of the paper was to analyze the dynamics of the world silk production, export, import and trade balance in the period 2012-2016 and to identify the trends and estimate the forecast for the horizon 2017-2021, based on the data supplied by ISC,
Agatha POPESCU
doaj  

Grip and Grasp: Lizard Claw Inspired Robotic Manipulators

open access: yesAdvanced Robotics Research, EarlyView.
Our study identifies the most effective lizard claw shape for use as an end effector in a bioinspired robotic manipulator. By examining key geometric features and combining them into comparative indices, the Crotaphytus collaris claw is found to be the best fit.
Hyeon Lee   +4 more
wiley   +1 more source

Comparative research of international exchange of plant products [PDF]

open access: yesMarketing (Beograd. 1991), 2003
The well known events which had taken place in our country over the period 1989-2001 provoked adverse effects on foreign trade exchange of the total economy, agriculture and commodities of plant origin.
Đorović Milutin T.   +2 more
doaj  

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