Results 31 to 40 of about 353,818 (294)

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

Coronal magnetograms of solar active regions [PDF]

Proceedings of the International Astronomical Union, 2004
A series of coronal magnetograms, related to the active region NOAA 9068 is derived using the effects of the quasi-transverse (QT-) propagation at microwaves. In the assumption that the product of the electron density N and the scale of magnetic divergence Ld is constant and equal to 10 18 cm −2 , the sensitivity of the measurements peaks at B(G) ≈ 180
Ryabov, B. I., Bogod, V. M., Gelfreikh, G. B., Maksimov, V. P., Drago, F., Lubyshev, B. I., Peterova, N. G., Borisevich, T. P., Bezrukov, D. A.   +8 more
openaire   +2 more sources

Compressible Flow Exfoliation of Two‐Dimensional Nanomaterials: Insights Into Layer Separation Informed by Gas Dynamics

Advanced Engineering Materials, EarlyView.
This study elucidates the mechanism of compressible flow exfoliation for producing 2D hexagonal boron nitride (h‐BN). Fluid dynamics analysis reveals that acceleration‐driven aerodynamic shear forces, rather than shock waves alone, drive effective layer separation.
Md Farhadul Islam, Saeed Arabha, Ray Hixon, Reza Rizvi   +3 more
wiley   +1 more source

Current Helicity and Twist as Two Indicators of The Mirror Asymmetry of solar Magnetic Fields

, 2008
A comparison between the two tracers of magnetic field mirror asymmetry in solar active regions, twist and current helicity, is presented. It is shown that for individual active regions these tracers do not possess visible similarity while averaging by ...
A.A. Pevtsov, A.R. Choudhuri, D. N. Tomin, D. Sokoloff, D. Sokoloff, D.M. Rust, E.N. Parker, E.N. Parker, E.N. Parker, H. Xu, H. Zhang, H. Zhang, H. Zhang, H. Zhang, J. Zhao, K. M. Kuzanyan, K.M. Kuzanyan, L. Gizon, L. Woltjer, M. Hagino, N. Kleeorin, N. Kleeorin, N. Seehafer, S.D. Bao, S.D. Bao, T.J. Wang, V. N. Obridko, V. N. Tutubalin, V.I. Abramenko, V.I. Abramenko, Yu.B. Ponomarenko, Yu.B. Ponomarenko   +31 more
core   +1 more source

Where Do Solar Storms Prefer to Originate From: Hemispheric and Longitudinal Patterns in Solar Cycles 23 and 24

The Astrophysical Journal
Using synoptic maps, we analyzed the relationship between active longitudes, the most populated longitudes of energetic flares, the distribution of magnetically complex active regions, and the preferred locations of those that produced the largest flares.
Marianna B. Korsós, Robertus Erdélyi
doaj   +1 more source

Complex Network for Solar Active Regions [PDF]

The Astrophysical Journal, 2017
Abstract In this paper we developed a complex network of solar active regions (ARs) to study various local and global properties of the network. The values of the Hurst exponent (0.8–0.9) were evaluated by both the detrended fluctuation analysis and the rescaled range analysis applied on the time series of the AR numbers.
Farhad Daei, Hossein Safari, Neda Dadashi   +2 more
openaire   +2 more sources

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

Case studies of multi-day 3He-rich solar energetic particle periods

, 2015
Context. Impulsive solar energetic particle events in the inner heliosphere show the long-lasting enrichment of 3He. Aims. We study the source regions of long-lasting 3He-rich solar energetic particle (SEP) events Methods. We located the responsible open
Bucik, Radoslav., Chen, Nai-hwa, Innes, Davina. E., Mason, Glenn. M.   +3 more
core   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Light Bridges and Solar Active Region Evolution Processes

The Astrophysical Journal Supplement Series
The formation mechanism of light bridges (LBs) is strongly related to the dynamic evolution of solar active regions (ARs). To study the relationship between LB formation and AR evolution phases, we employ 109 LB samples from 69 ARs in 2014 using ...
Fuyu Li, Changhui Rao, Xinhua Zhao, Yang Guo, Xiaoying Gong, Yuhao Chen, Nanbin Xiang, Huaning Wang   +7 more
doaj   +1 more source