Results 121 to 130 of about 1,040,988 (296)

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

Advanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil, Sumayya Ansari, Prasanna Kumar S Mural, Yaser E. Greish, Adnan Younis, Akmal Nazir, Muhammad Z. Iqbal   +6 more
wiley   +1 more source

On the Accurate Determination of the Orthometric Correction to Levelled Height Differences—A Case Study in Hong Kong

Geomatics
Orthometric heights are practically determined from levelling and gravity measurements by applying orthometric corrections to levelled height differences.
Robert Tenzer, Albertini Nsiah Ababio, Ismael Foroughi, Martin Pitoňák, Pavel Novák, Wenjin Chen, Franck Eitel Kemgang Ghomsi   +6 more
doaj   +1 more source

Terrestrial water storage change from temporal gravity variation [PDF]

, 2009
Recent progress in accurately monitoring temporal gravity variations by means of superconducting gravimeters and satellite geodesy provides unprecedented opportunities in closing the water balance.
Hasan, S.
core  

Programming Light‐Driven Surface Topographies in Liquid Crystal Elastomers for Potential Biomedical Applications Through Combined Experiments and Simulations

Advanced Materials Technologies, EarlyView.
A combined experimental and simulation study of light‐responsive liquid crystal elastomer surfaces operating under physiological conditions is reported, demonstrating programmable and highly spatially controlled topography formation through bottom‐side photomask exposure. Our study establishes a foundation for dynamic, light‐responsive biosurfaces with
Ruth M. C. Verbroekken, Akhila Gottipati, Burcu Gumuscu, Ratna Kumar Annabattula, Albert P. H. J. Schenning   +4 more
wiley   +1 more source

Interpretation and data processing of gravity gradient observation

, 2011
Fen Bilimleri Enstitüsü, Jeofizik Mühendisliği Ana Bilim DalıSunulan bu çalışmada gravite ile gravite düşey gradient çalışmaları veri işlem ve yorum açısından karşılaştırılmıştır.Gravite ve gravite düşey gradient çalışmaları sığ yer altı boşluk ...
Yıldırım, Gökhan
core   +1 more source

UCST‐Driven Shape Morphing in Digital Light Processing 4D‐Printed Hydrogels

Advanced Materials Technologies, EarlyView.
A DLP‐printable UCST hydrogel based on poly(acrylic acid‐co‐acrylamide) enables reversible thermally induced expansion and 4D shape morphing. Rational control of composition, porosity, and multimaterial architecture enables predictable 4D shape morphing through differential swelling and localized actuation, opening new opportunities for high‐resolution
Fato Niang, Vincent Lapinte, Sebastien Blanquer   +2 more
wiley   +1 more source

Research on the Dynamic Modeling of Rigid–Flexible Composite Spacecraft Under Fixed Constraints Based on the ANCF

Aerospace
Dynamically modeling the flexible characteristics of large-scale jointed composite spacecraft is challenging. In this study, a dynamic modeling method for rigid–flexible composite spacecraft is proposed based on the absolute nodal coordinate formulation (
Jiaqi Wu, Guohua Kang, Junfeng Wu, Chuanxiao Xu, Jiayi Zhou, Xinyong Tao, Yinmiao Hua   +6 more
doaj   +1 more source

Gravity Is Not a Force: Gravity as a Structural Timing Gradient

Gravity is conventionally described either as a force acting at a distance (Newton, 1687) or as the manifestation of spacetime curvature induced by stress–energy (Einstein, 1915). While these formulations are empirically successful, both implicitly treat gravitational behaviour as arising from dynamical interaction rather than from pre-existing ...
openaire   +2 more sources

Trade in Services: Does Gravity Hold? A Gravity Model Approach to Estimating Barriers to Services Trade [PDF]

This paper assesses the determinants of trade in services using a gravity model, with particular attention given to the role of barriers to services trade. Initially, the application of the gravity equation to services trade is examined.
Keith Walsh
core  

On the gravity gradient at satellite altitudes [PDF]

, 1967
Gravity gradient at satellite ...
Koehnlein, W.
core