Results 111 to 120 of about 2,815 (307)

Cornus Mas L. Seed‐Derived Biosorbent for Methylene Blue Removal: Surface Characterization and Biosorption Performance

Advanced Materials Interfaces, EarlyView.
Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız, Adem Necip, Arslan Yusuf Yüksel   +2 more
wiley   +1 more source

Covalent Attachment of Quaternary Ammonium Group to Geopolymer Surface With Silane Coupling Agent to Enable Simultaneous Adsorption of Cations and Anions

Advanced Materials Interfaces, EarlyView.
Modification of geopolymer surface with a silane coupling agent containing quaternary ammonium group enables the development of dual‐functioning ion exchanger for both cations and anions. In the present study, the performance of this material was demonstrated for the uptake of ammonium and nitrate from water.
Yangmei Yu, Marco Fazzini, Giorgia Franchin, Paolo Colombo, Dario Frascari, Md Faysal Hossain, Priyadharshini Perumal, Tero Luukkonen   +7 more
wiley   +1 more source

TanDEM-X: Mission Overview and Status [PDF]

, 2011
TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative formation flying radar mission that opens a new era in spaceborne radar remote sensing.
Schulze, Daniel, Hajnsek, Irena, Zink, Manfred, Moreira, Alberto, Krieger, Gerhard   +4 more
core  

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

CARRIER-BASED DIFFERENTIAL GPS FILTERING APPROACHES FOR PRECISE RELATIVE POSITIONING IN FORMATION FLYING WITH HIGHLY VARIABLE INTER-SATELLITE DISTANCE [PDF]

, 2008
A dynamic filtering scheme for carrier-based differential GPS relative navigation of formation flying satellites is described. It relies on an augmented-state Extended Kalman Filter processing double-difference GPS observables and using a non linear ...
GRASSI, MICHELE, A. Intelisano, RENGA, ALFREDO   +2 more
core  

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

Advanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz   +10 more
wiley   +1 more source

Hardware-in-the-loop Multi-satellite Simulator for Proximity Operations [PDF]

, 2010
This paper addresses the first steps realized to set up a hardware in-the-loop (HWIL) multi-satellite simulator aimed at the support of closed-loop real-time real-scale On-Orbit Servicing (OOS) scenarios.
Ardeans Jean-Sébastien, Ardeans, Jean-Sébastien, Boge Toralf, Boge, Toralf, Gaias Gabriella, Gaias, Gabriella, D'Amico, Simone, D'Amico Simone   +7 more
core  

Recent Developments in Energy Storage and Conversion Applications of Multifunctional Vanadium Carbides

Advanced Materials Technologies, EarlyView.
This review systematically explains the synthesis, properties, and energy storage and conversion applications of vanadium carbides. We introduce the structural and the synthetic strategies and reviewed recent developments in the material synthesis processes. The emerging applications of vanadium carbides in energy storage and conversion are highlighted.
Swathy B. Saseendran, Sang Mun Jeong, Chandra Sekhar Rout   +2 more
wiley   +1 more source

Pattern transition in spacecraft formation flying via the artificial potential field method and bifurcation theory [PDF]

, 2008
In recent years many new and exciting space concepts have developed around spacecraft formation flying. This form of distributed system has the advantages of being extremely flexible and robust.
Bennet, Derek J., McInnes, C.R.
core  

Configuration Design Method of Mega Constellation for Low Earth Orbit Observation

Space: Science & Technology
The configuration optimization design of Low Earth Orbit observation mega constellation in complex space environment is a nonlinear problem that is difficult to solve analytically.
Yuheng Yang, Xiande Wu, Jiamin Li, Jie Zang, Jianchun Lu, Ralf Zgeib   +5 more
doaj   +1 more source