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  • 1
    Publication Date: 2019-10-18
    Description: Plastic has become indispensable for human life. When plastic debris is discarded into waterways, these items can interact with organisms. Of particular concern are microscopic plastic particles (microplastics) which are subject to ingestion by several taxa. This review summarizes the results of cutting-edge research about the interactions between a range of aquatic species and microplastics, including effects on biota physiology and secondary ingestion. Uptake pathways via digestive or ventilatory systems are discussed, including (1) the physical penetration of microplastic particles into cellular structures, (2) leaching of chemical additives or adsorbed persistent organic pollutants (POPs), and (3) consequences of bacterial or viral microbiota contamination associated with microplastic ingestion. Following uptake, a number of individual-level effects have been observed, including reduction of feeding activities, reduced growth and reproduction through cellular modifications, and oxidative stress. Microplastic-associated effects on marine biota have become increasingly investigated with growing concerns regarding human health through trophic transfer. We argue that research on the cellular interactions with microplastics provide an understanding of their impact to the organisms’ fitness and, therefore, its ability to sustain their functional role in the ecosystem. The review summarizes information from 236 scientific publications. Of those, only 4.6% extrapolate their research of microplastic intake on individual species to the impact on ecosystem functioning. We emphasize the need for risk evaluation from organismal effects to an ecosystem level to effectively evaluate the effect of microplastic pollution on marine environments. Further studies are encouraged to investigate sublethal effects in the context of environmentally relevant microplastic pollution conditions.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Book , NonPeerReviewed
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  • 2
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Intelligent drug delivery systems have attracted great attention in the field of biomedicine and cancer diagnosis. In this work, a drug delivery system that can be gated by doxorubicin itself and together with pH-responsive ability has been designed and prepared based on the upconversion nanoparticles. The drug delivery system is a special core–shell structure, consisting of upconversion nanoparticle core and mesoporous silica shell. The new system tactfully bypasses the use of auxiliary capping agents and exhibits desirable drug release at pH = 5, enhancing HeLa cells inhibition. The introduction of Schiff base plays a key role in the process of achieving pH-responsive drug release. Moreover, upconversion nanoparticles could emit bright yellow-green fluorescence (540 nm) under the irradiation of near-infrared light (980 nm) for in vivo bioimaging. This characteristic provides the possibility of locating tumor tissues and real-time tracing drug delivery.〈/p〉
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    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 3
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Polylactic acid (PLA) is a biodegradable thermoplastic polymer that is presented as a good alternative to petroleum-derived plastics. Some of the major drawbacks of this material are its lack of thermal stability and rapid degradation in large-scale production; thus, special care must be taken during processing. To improve their properties, a reactive extrusion with a multi-epoxy chain extender (SAmfE) has been performed at pilot plant scale. The induced topological modifications produce a mixture of several types of non-uniform structures. Conventional chromatographic (SEC—static light scattering) or spectroscopic (nuclear magnetic resonance) techniques usually fail in characterizing non-uniform structures. A method for the classification of modified PLA samples based on a multivariate treatment of the spectral data obtained by Fourier-transform infrared spectroscopy, jointly with the application of feature extraction and classification algorithms, was applied in this study. The results of this work show the potential of the methodology proposed to improve quality control during manufacturing.〈/p〉
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    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 4
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Despite the vast available literature on the synergistic action between zeolites and intumescent formulations, the influence of the acidity of the zeolite on the flame-retardant properties of the materials has not yet been properly addressed. This work investigates the effect of the concentration and the strength of the acidic sites of faujasite Y zeolites on their synergistic action with an intumescent formulation composed of ammonium polyphosphate (APP) and pentaerythritol (PER) in a polypropylene matrix. The results from the limiting oxygen index, cone calorimetry and glow-wire indicate that the zeolites with higher concentration of moderate strength acidic sites can catalyse more efficiently the reaction between APP and PER, which produces phosphate esters, precursors of 〈em〉char〈/em〉, enhancing the flame-retardant properties. However, an over increase in the acidic sites strength shows the opposite effect, as the zeolite can be prematurely deactivated during the initial steps of 〈em〉char〈/em〉 formation. Therefore, the increase in the concentration of the faujasite Y acidic sites with moderate strength might be a good strategy in order to obtain materials with better flame-retardant properties.〈/p〉
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    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 5
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉By means of the CRYSTAL computer program package, first-principles calculations of polar ZrO-, Ca- and O-terminated CaZrO〈sub〉3〈/sub〉 (011) surfaces were performed. Our calculation results for polar CaZrO〈sub〉3〈/sub〉 (011) surfaces are compared with the previous ab initio calculation results for ABO〈sub〉3〈/sub〉 perovskite (011) and (001) surfaces. From the results of our hybrid B3LYP calculations, all upper-layer atoms on the ZrO-, Ca- and O-terminated CaZrO〈sub〉3〈/sub〉 (011) surfaces relax inwards. The only exception from this systematic trend is outward relaxation of the oxygen atom on the ZrO-terminated CaZrO〈sub〉3〈/sub〉 (011) surface. Different ZrO, Ca and O terminations of the CaZrO〈sub〉3〈/sub〉 (011) surface lead to a quite different surface energies of 3.46, 1.49, and 2.08 eV. Our calculations predict a considerable increase in the Zr–O chemical bond covalency near the CaZrO〈sub〉3〈/sub〉 (011) surface, both in the directions perpendicular to the surface (0.240〈em〉e〈/em〉) as well as in the plane (0.138〈em〉e〈/em〉), as compared to the CaZrO〈sub〉3〈/sub〉 (001) surface (0.102〈em〉e〈/em〉) and to the bulk (0.086〈em〉e〈/em〉). Such increase in the B–O chemical bond population from the bulk towards the (001) and especially (011) surfaces is a systematic trend in all our eight calculated ABO〈sub〉3〈/sub〉 perovskites.〈/p〉
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  • 6
    Publication Date: 2020
    Description: 〈p〉1) The symbol “〈em〉w〈/em〉〈sub〉〈em〉f〈/em〉〈/sub〉” in Eq. (2) on p. 3458 denotes the weight fraction of HNTs in PVA/ST/HNT nanocomposites.〈/p〉
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    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 7
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉The needle-like TiO〈sub〉2〈/sub〉 obtained by hydrothermal treatment combines with Graphene by adding cetyltrimethylammonium bromide (CTAB) as auxiliary dispersant. On this basis, the needle-like TiO〈sub〉2〈/sub〉/Graphene composite conductive material was prepared which is increasing the compatibility of conductive Graphene. The growth mechanism of the needle-like TiO〈sub〉2〈/sub〉/Graphene was discussed and supported by scanning electron microscopy, transmission electron microscopy and other test methods. Experimental results show that hydrothermal temperature has a great influence on the formation of needle-like TiO〈sub〉2〈/sub〉. The quick electron transportation properties between TiO〈sub〉2〈/sub〉 and Graphene make the TiO〈sub〉2〈/sub〉/Graphene have excellent conductive ability. Needle-like TiO〈sub〉2〈/sub〉 can facilitate electron transport on the layer of Graphene. The three-dimensional mesh structure formed by crisscross of needle-like TiO〈sub〉2〈/sub〉 is attached to the Graphene surface by the auxiliary effect of CTAB, is forming a conductive network to increase the transmission rate of electrons, so that the TiO〈sub〉2〈/sub〉/Graphene is endowed with good electrical conductivity. Finally, the resistivity of TiO〈sub〉2〈/sub〉/Graphene is as low as 1.655 × 10〈sup〉−3〈/sup〉 Ω m at 7 wt% Graphene, which conforms to the electrical conductive standard of the materials prepared by the factory.〈/p〉
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  • 8
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉The application of Co-W-P plating technology in high-temperature package structure is advantageous from a point of structural reliability because Co-W-P metallization is known to deliver strong bonding to both high-temperature-compatible Ag-sintered joining and high-temperature-compatible encapsulation resins. However, Co-W-P, unlike a noble metal, has a potential risk of surface oxidation in the module fabrication process. This surface oxidation can result in a decrease in resin adhesion. In this paper, the effects of W content (7 wt%, 11 wt%, 21 wt%) in Co-W-P metallization on both the oxidation resistance and the resin adhesion were studied. The resin adhesion on the annealed Co-W-P metallization with a high W content (21 wt%) was found to be sufficiently strong even after 250 °C anneal for 1 h. This resin adhesion strength was not present in other Co-W-P metallization tests. SEM–EDS analysis revealed that the oxidization of the Co-W-P-metallized surface during the anneal process proceeded more slowly in the case of the Co-W-P metallization with a doping 21 wt% W. XPS analysis revealed that Co(OH)〈sub〉2〈/sub〉, necessary for a chemical reaction with the resin, exists mainly on the Co-W-P-metallized surface in the case of doping 21 wt% W, even after 250 °C anneal. XRD analysis revealed its structure to be a characteristic Co-W solid solution, unlike the structures found in other Co-W-P metallization. The findings in this study are significant for the promotion of Co-W-P metallization in the module fabrication process, as well as to the fundamental understanding of oxidation resistance and adhesion behavior on Co-W-P metallization.〈/p〉
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  • 9
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Semiconductor nanocrystals (NCs) heavily doped with cation/anion vacancies or foreign metal ions can support localized surface plasmon resonance (LSPR) in the near-infrared (NIR) and mid-infrared (MIR) spectral wavelengths. Typically, nonstoichiometric copper sulfide Cu〈sub〉2−〈em〉x〈/em〉〈/sub〉S NCs with different 〈em〉x〈/em〉 values (0 〈 〈em〉x〈/em〉 ≤ 1) have attracted numerous attention because of hole-based, particle size, morphology, hole density and crystal phase-dependent LSPR. In spite of excited development of methodology for LSPR manipulation, systematic LSPR tuning of Cu〈sub〉2−〈em〉x〈/em〉〈/sub〉S NCs with a special crystal phase has been limited. Herein, roxbyite Cu〈sub〉1.8〈/sub〉S nanodisks (NDs) were selected as a model and their LSPR was readily tuned by particle size, hole density via chemical oxidation and reduction, self-assembly and disassembly in solution and plasmon coupling in multilayer films. Particle size, hole density and plasmon coupling severely affect their LSPR peak position and absorption intensity. Therefore, the ability of flexible LSPR tuning gifts roxbyite Cu〈sub〉1.8〈/sub〉S NDs great potential in plasmonic applications, including photocatalysis, photothermal agent, two-photon photochemistry and many others in NIR and MIR regions.〈/p〉
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  • 10
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉A series of promising Ce–Co–Fe catalysts were successfully synthesized using a cetyl-trimethylammonium-bromide-assisted co-precipitation method and investigated for diesel soot combustion. The surface morphological and structural properties were systematically examined using various techniques: X-ray diffraction, scanning electron microscope, N〈sub〉2〈/sub〉 adsorption–desorption, Raman spectroscopy, temperature-programmed reduction and in situ diffuse reflection infrared Fourier transform spectroscopy. The catalyst–soot combustion activities were tested in O〈sub〉2〈/sub〉 and NO + O〈sub〉2〈/sub〉 using a temperature-programmed technique. Nanometer crystalline solid solutions were formed with high surface areas when the Fe and Co cations were co-doped in the ceria lattice. Transition metals doping played a key role in increasing oxygen vacancies and promoting the redox performance of Ce–Co–Fe catalysts. Co–Fe co-doping accelerated the oxidation of soot under both “tight” and “loose” contact conditions. Among all the ceria-based catalysts, Ce〈sub〉80〈/sub〉Co〈sub〉15〈/sub〉Fe〈sub〉5〈/sub〉 showed superior activity with 〈em〉T〈/em〉〈sub〉10〈/sub〉 = 256 °C and high selectivity with 〈span〉 〈span〉\( S_{{{\text{CO}}_{ 2} }} \, = \,100\% \)〈/span〉 〈/span〉 under tight a contact mode. The observed high catalytic activity following co-doping was proved to have occurred because of various reasons such as improved redox properties, increased oxygen vacancies and high surface area. The presence of NO in O〈sub〉2〈/sub〉 also promoted soot oxidation, which follows the NO〈sub〉2〈/sub〉-assisted mechanism. Moreover, the in situ DRIFTS performed under an isothermal condition in NO + O〈sub〉2〈/sub〉 confirmed the strong adsorption capacity for NO〈em〉x〈/em〉 species on the doped ceria catalyst.〈/p〉
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  • 11
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Wearable flexible sensors based on fabrics possessing advantages of softness, flexibility and foldability have gained great attention nowadays. Here, a flexible assembled sensor is composed of one fabric coated with a certain circuit pattern by polyaniline (PANI) coating and another fabric with PANI/nano-silver coating. The sensor is delicately designed by face-to-face placing the conductive surfaces of two cotton fabrics to form an interpolation structure. The features of resultant sensor are confirmed by SEM, XRD and EDS tests. In addition, the dynamic response tests of the sensor show high sensitivity of 0.04–0.10 kPa〈sup〉−1〈/sup〉, high durability of 500 cycles, broad sensing range of about 0–20 kPa and quick response and recovery time of about 0.40 s, and the breaking strength is 25.00 MPa and the elongation at break is 19.00%. The sensor also can effectively monitor various forces and detect multiple human body movements. Thanks to the unique properties of the fabric and the superior performance of the sensor, we believe this mechanical sensor based on flexible fabrics will exhibit great potential for motion monitoring and vocal cord vibration recognition.〈/p〉
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  • 12
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Polyvinylidene fluoride (PVDF) membranes were surface-modified via a simple coating method for improvement of the hydrophilicity performance. In this work, TP/PEI/PVDF modified membrane was successfully prepared by using tea polyphenol as a multifunctional coating. The physicochemical properties of membranes were characterized by Fourier transform infrared spectroscopy, X-ray energy-dispersive spectrometry, X-ray photoelectron spectroscopy scanning electron microscopy and atomic force microscopy. The water contact angle, pure water flux and methylene blue rejection ratio of membranes were investigated in detail. Compared with the pristine membrane, the water contact angle of the modified membrane decreased to 48.8°, and the rejection ratios were increased to 95.2% when the modified membrane was used to separate methylene blue. In addition, the modified membrane showed excellent antifouling performance in the experiment, and the flux recovery ratio still reached 84.6% after three fouling/washing cycles. In the oxidation experiment, the modified membranes were immersed in KMnO〈sub〉4〈/sub〉 solution for 6 h, and the results show that the water contact angle, pure water flux and methylene blue rejection of the modified membranes only have changed slightly. Therefore, this study could have a great potential for widening the application of membranes in the treatment of dye wastewater containing oxidants.〈/p〉
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  • 13
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉The electronic structures of 〈span〉 〈span〉\(\hbox {Hf}_{1-x}\hbox {Zr}_{x}\hbox {S}_{3}\)〈/span〉 〈/span〉 and 〈span〉 〈span〉\(\hbox {Hf}_{1-x}\hbox {Zr}_{x}\hbox {Se}_{3}\)〈/span〉 〈/span〉 trichalcogenides are investigated by first-principles calculation. In particular, step change of Zr concentration is intensively investigated. Our calculations reveal that doping of Zr atoms increase the strength of cohesion between the atoms in 〈span〉 〈span〉\(\hbox {HfX}_ 3\)〈/span〉 〈/span〉 (X = S, Se) monolayers, and results in occurring of energetically more stable alloys. In addition, doping of Zr atoms in 〈span〉 〈span〉\(\hbox {HfS}_3\)〈/span〉 〈/span〉 causes band gap bowing, which means the curve of band gap values shows quadratic nonlinearities while change from semimetal to semiconductor is observed in 〈span〉 〈span〉\(\hbox {HfSe}_3\)〈/span〉 〈/span〉 case. The examined band structures indicate that 〈span〉 〈span〉\(\hbox {Hf}_{1-x}\hbox {Zr}_{x}\hbox {S}_{3}\)〈/span〉 〈/span〉 monolayers have very suitable band gap values for water splitting and also their band edge potentials have sufficiently higher or lower positions than the required potential values for the reduction or oxidation potentials. 〈/p〉
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  • 14
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉The texture structure of the multi-crystalline silicon (mc-Si) pyramid was realized by a combination of acidic and alkaline etching. The results showed that the structure of the corrosion pits could be first obtained on the mc-Si surface by acid etching, and the subsequent alkaline etching could further transform the pits into a pyramid structure. The best solar cell obtained based on the textured structure showed superior photovoltaic property, and its photovoltaic conversion efficiency reached 18.17%, which was significantly higher than that of solar cell without texture structure. The improvement in efficiency was mainly owing to the light-trapping effect of texture structure, which was confirmed by the external quantum efficiency measurement. This work offers a simple way to prepare low-cost mc-Si solar cells with high performance.〈/p〉
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  • 15
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Flexible unidirectional (UD) composite laminates are commonly being used for ballistic-resistant body armor. These laminates comprise UD layers, each constructed by laminating thin layers of high-performance fibers held in place using very low modulus binder resins, with the fibers in each layer oriented parallel to each other. As these materials are used in body armor, it is important to investigate their long-term reliability, particularly with regard to exposure to temperature and humidity as these are known causes of degradation in other commonly used body armor materials. This work investigates the tensile behavior of a poly(〈em〉p〈/em〉-phenylene terephthalamide), or PPTA flexible UD laminate aged for up to 150 days at accelerated aging conditions of 70 °C and 76% relative humidity. Tests were performed at three different crosshead displacement rates and three different gauge lengths. The effect of aging on the mechanical properties of the material was observed as less than 10% degradation in tensile strength, with a more significant reduction in longer specimens when tested at slower rates.〈/p〉
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  • 16
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉In this work, the magnetic and transport properties of La〈sub〉0.7〈/sub〉Ca〈sub〉0.3〈/sub〉MnO〈sub〉3〈/sub〉 (LCMO) films are compared with films capped with Fe〈sub〉3〈/sub〉O〈sub〉4〈/sub〉. The capping layers for films with the thicknesses of 50 nm and 100 nm broadened the metal–insulator transition, though they produced rather few changes to other properties. The results were dramatically different for a 20-nm-thick LCMO layer compared to other thicker films. The metal–insulator transition temperature increased from 160 to 200 K for capped LCMO film despite the fact that the capping layer reduced the magnitude of magnetization. The temperature of maximum magnetoresistance (MR) shifted from 115 to 185 K. However, its magnitude, 1500% at 5 T, remained unchanged due to capping. This behavior was attributed to atomic inter-diffusion at the LCMO/Fe〈sub〉3〈/sub〉O〈sub〉4〈/sub〉 interface which resulted in the generation of Mn〈sup〉2+〈/sup〉 ions. These results are of great significance and suggest a promising future for both the fundamental research and device applications involving thin films of LCMO.〈/p〉
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  • 17
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Magnesium-based alloys presented great potential for biodegradable implant materials. However, the poor mechanical properties and high corrosion rate blocked its extensive application. In this study, a new biodegradable Mg–Zn–Y–Gd–Zr alloy was fabricated and extruded. The microstructure, corrosion morphologies and corrosion products film of the as-cast, homogenized and as-extruded alloys were characterized by optical micrographs, scanning electron microscopy, X-ray diffraction and laser scanning confocal microscopy. Moreover, the corrosion mechanisms of the as-cast and as-extruded alloys were proposed, and the influencing factors of corrosion properties were discussed. The electrochemical test, immersion tests and corrosion morphologies demonstrated that the as-extruded alloy exhibited favorable corrosion properties. The as-cast and homogenized alloys displayed localized corrosion mode, and the as-extruded alloy displayed uniform corrosion mode. The Volta potential of the Mg〈sub〉3〈/sub〉(Y,Gd)〈sub〉2〈/sub〉Zn〈sub〉3〈/sub〉 phase relative to Mg matrix was measured by using Kelvin probe force microscopy. 〈/p〉
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  • 18
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉2,4,6-Triamino-5-nitropyrimidine-1,3-dioxide (ICM-102) is a new high-energy crystal which has outstanding combination of performance, effects of three common small molecules H〈sub〉2〈/sub〉O, NH〈sub〉3〈/sub〉 and H〈sub〉2〈/sub〉S on its molecular, crystal and electronic structures, and elastic, optical and thermodynamic properties of the compound were studied by the first-principle calculation and Hirshfeld surface analysis in this work. The results showed that H〈sub〉2〈/sub〉O, NH〈sub〉3〈/sub〉 and H〈sub〉2〈/sub〉S do have significant effects on the structure and property of ICM-102, and different molecules made various influence on all kinds of properties. The low-sensitivity feature of ICM-102 was confirmed, and H〈sub〉2〈/sub〉O molecule was found to further increase the stability of ICM-102 crystal obviously by enriching different kinds of close contacts. While the stabilization effect of NH〈sub〉3〈/sub〉 and H〈sub〉2〈/sub〉S on the ICM-102 was weaker than that of H〈sub〉2〈/sub〉O and H〈sub〉2〈/sub〉O also improved the density, stiffness, fracture strength and ductility, absorption to purple, blue, green and yellow lights, and thermodynamics parameters of ICM-102, but it decreased the band gap, anisotropy, plasticity, absorption to near ultraviolet and orange, red and infrared lights, and dielectric constant. However, different to H〈sub〉2〈/sub〉O, NH〈sub〉3〈/sub〉 and H〈sub〉2〈/sub〉S reduced stiffness, fracture strength and ductility but increased the band gap of ICM-102. Besides, H〈sub〉2〈/sub〉S was found to completely eliminate the region where light cannot be transmitted in the solid crystal ICM-102. This study may be helpful for using small molecules to stabilize the structure and adjust the property of energetic materials. 〈/p〉
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
    Published by Springer
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  • 19
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉Transition metal phosphides have been regarded as reliable supercapacitor electrode materials and extensively researched. In this work, a facile three-step way has been taken to synthesize NiCoP@NiCoP core–shell nanoarrays directly grown on carbon cloth, which was used as a high-performance supercapacitor electrode. Compared with the NiCo-LDH precursor and NiCoP nanowire and NiCoP nanosheet, NiCoP@NiCoP core–shell composite shows higher electrochemical performance owing to the integration of the advantages of phosphides and core–shell structure. To be specific, the as-fabricated NiCoP C–S electrode exhibits great electrochemical performance with high specific capacitance (1492.5 F g〈sup〉−1〈/sup〉 at 1 A g〈sup〉−1〈/sup〉), good rate performance (68.82% of the initial specific capacitance at 15 A g〈sup〉−1〈/sup〉) and outstanding cycling stability (maintains 80.9% of the initial capacitances after 5000 cycles at 10 A g〈sup〉−1〈/sup〉). Moreover, the assembled NiCoP C–S//rGO asymmetric supercapacitor device delivers a high energy density of 48.13 Wh kg〈sup〉−1〈/sup〉 at the power density of 1125 W kg〈sup〉−1〈/sup〉 and it still retains 20.94 Wh kg〈sup〉−1〈/sup〉 at a high power density of 11250 W kg〈sup〉−1〈/sup〉, indicating its great possibility of practical application. 〈/p〉
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 20
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉In this work, a novel magnetic nanocomposite combining selenium nanoparticles (SeNPs) with iron oxide nanoparticles (IONPs) was synthesized for the first time, in which the size of the iron oxide nanoparticles was 7–12 nm, and nearly spherical or rod-like selenium nanoparticles were obtained according to the different pH values of the reaction mixtures. Selenium incorporation into iron oxide nanoparticles was improved by using a chitosan coating with pentasodium triphosphate as a crosslinking agent. The micromorphology, crystalline structure and magnetic properties of the nanocomposites were characterized by a transmission electron microscope, X-ray diffractometer and a superconducting quantum interference device. More importantly, the nanocomposites exhibited excellent anti-biofilm activity in the presence of an external magnetic field with significantly less toxicity toward human dermal fibroblast cells. The relative fraction of dead-to-live bacteria of the nanocomposites (400.0%) was much higher than that of SeNPs (51.6%) and IONPs (60.0%) by using ImageJ analysis. In this manner, the results of this study suggest that this presently created composite of selenium nanoparticles and iron oxide nanoparticles should be further studied (including in vivo assessment for blood compatibility and immune response) for a wide range of magnetically controlled biomedical applications.〈/p〉
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 21
    Publication Date: 2020
    Description: 〈h3〉Abstract〈/h3〉 〈p〉The growing interest and rapid development of portable and flexible wearable electronics has significantly escalated the need of designing miniaturized on-chip energy storage and conversion units as power sources for smart electronic devices. Current aqueous microsupercapacitors suffer from a low energy density due to their small working potential, which limits their potential application. This study presents the fabrication of a 1.6 V flexible, aqueous asymmetric microsupercapacitor (AMSC) with 83% capacitance retention after 5000 cycles which designed by the integration and voltage balance of functionalized graphene-based cathode as a double-layer supercapacitive electrode and iodine-doped graphene anode as a pseudocapacitive electrode. The combination of electrostatic and faradic charge storage mechanism in this all-graphene-based AMSC enables the device to deliver an ultra-high energy–power density (4.75 mWh cm〈sup〉−3〈/sup〉 at 61.55 W cm〈sup〉−3〈/sup〉) and a stabilized performance even after 2000 repeated bending cycles, which suggests the promising potential of the all-graphene AMSC as a substantial power source for future flexible electronic devices.〈/p〉
    Print ISSN: 0022-2461
    Electronic ISSN: 1573-4803
    Topics: Maschinenwesen, Werkstoffwissenschaften, Fertigungstechnik, Bergbau u. Hüttenwesen, Verkehrstechnik, Feinwerktechnik , Physics
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  • 22
    Publication Date: 2019-03-28
    Description: Beside its global effects, climate change is manifested in many regionally pronounced features mainly resulting from changes in the oceanic and atmospheric circulation. Here we investigate the influence of the North Atlantic SST on shaping the winter-time response to global warming. Our results are based on a long-term climate projection with the Max Planck Institute Earth System Model (MPI-ESM) to investigate the influence of North Atlantic sea surface temperature pattern changes on shaping the atmospheric climate change signal. In sensitivity experiments with the model’s atmospheric component we decompose the response into components controlled by the local SST structure and components controlled by global/remote changes. MPI-ESM simulates a global warming response in SST similar to other climate models: there is a warming minimum—or ”warming hole”—in the subpolar North Atlantic, and the sharp SST gradients associated with the Gulf Stream and the North Atlantic Current shift northward by a few a degrees. Over the warming hole, global warming causes a relatively weak increase in rainfall. Beyond this, our experiments show more localized effects, likely resulting from future SST gradient changes in the North Atlantic. This includes a significant precipitation decrease to the south of the Gulf Stream despite increased underlying SSTs. Since this region is characterised by a strong band of precipitation in the current climate, this is contrary to the usual case that wet regions become wetter and dry regions become drier in a warmer climate. A moisture budget analysis identifies a complex interplay of various processes in the region of modified SST gradients: reduced surface winds cause a decrease in evaporation; and thermodynamic, modified atmospheric eddy transports, and coastal processes cause a change in the moisture convergence. The changes in the the North Atlantic storm track are mainly controlled by the non-regional changes in the forcing. The impact of the local SST pattern changes on regions outside the North Atlantic is small in our setup.
    Type: Article , PeerReviewed
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  • 23
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    In:  In: Oceanographic and Biological Aspects of the Red Sea. , ed. by Rasul, N. M. A. and Stewart, I. C. F. Springer, Cham, Switzerland, pp. 401-418. ISBN 978-3-319-99416-1
    Publication Date: 2018-12-14
    Description: Coral reefs in the Red Sea belong to the most diverse and productive reef ecosystems worldwide, although they are exposed to strong seasonal variability, high temperature, and high salinity. These factors are considered stressful for coral reef biota and challenge reef growth in other oceans, but coral reefs in the Red Sea thrive despite these challenges. In the central Red Sea high temperatures, high salinities, and low dissolved oxygen on the one hand reflect conditions that are predicted for ‘future oceans’ under global warming. On the other hand, alkalinity and other carbonate chemistry parameters are considered favourable for coral growth. In coral reefs of the central Red Sea, temperature and salinity follow a seasonal cycle, while chlorophyll and inorganic nutrients mostly vary spatially, and dissolved oxygen and pH fluctuate on the scale of hours to days. Within these strong environmental gradients micro- and macroscopic reef communities are dynamic and demonstrate plasticity and acclimatisation potential. Epilithic biofilm communities of bacteria and algae, crucial for the recruitment of reef-builders, undergo seasonal community shifts that are mainly driven by changes in temperature, salinity, and dissolved oxygen. These variables are predicted to change with the progression of global environmental change and suggest an immediate effect of climate change on the microbial community composition of biofilms. Corals are so-called holobionts and associate with a variety of microbial organisms that fulfill important functions in coral health and productivity. For instance, coral-associated bacterial communities are more specific and less diverse than those of marine biofilms, and in many coral species in the central Red Sea they are dominated by bacteria from the genus Endozoicomonas. Generally, coral microbiomes align with ecological differences between reef sites. They are similar at sites where these corals are abundant and successful. Coral microbiomes reveal a measurable footprint of anthropogenic influence at polluted sites. Coral-associated communities of endosymbiotic dinoflagellates in central Red Sea corals are dominated by Symbiodinium from clade C. Some corals harbour the same specific symbiont with a high physiological plasticity throughout their distribution range, while others maintain a more flexible association with varying symbionts of high physiological specificity over depths, seasons, or reef locations. The coral-Symbiodinium endosymbiosis drives calcification of the coral skeleton, which is a key process that provides maintenance and formation of the reef framework. Calcification rates and reef growth are not higher than in other coral reef regions, despite the beneficial carbonate chemistry in the central Red Sea. This may be related to the comparatively high temperatures, as indicated by reduced summer calcification and long-term slowing of growth rates that correlate with ocean warming trends. Indeed, thermal limits of abundant coral species in the central Red Sea may have been exceeded, as evidenced by repeated mass bleaching events during previous years. Recent comprehensive baseline data from central Red Sea reefs allow for insight into coral reef functioning and for quantification of the impacts of environmental change in the region.
    Type: Book chapter , NonPeerReviewed
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  • 24
    Publication Date: 2019-02-22
    Description: Dosidicus gigas (the Humboldt squid) is a widely distributed and ecologically important predator in the eastern Pacific Ocean, but its mating behaviour is poorly understood. Individuals of this species have undergone a drastic change in size at maturity in the last years. We investigated mating activity of Humboldt squid in the Gulf of California in 2013, 2014, and 2015 by quantifying spermatangia deposited in the tissue of the buccal area. In 2015, we encountered the smallest mean mantle length of mature specimens recorded to date in the Gulf of California. In all years, numerous males were encountered that had been mated by other males. Spermatangia in males were deposited on the tissue in similar numbers and in the same location as normally occurs in females (the buccal area), suggesting that male-to-male mating behaviour is similar to male-to-female. This behaviour is referred to as same-sex sexual behaviour and has been described for various taxa, including other cephalopods. Overall similarity in mating frequency between males and females and in body size of mated individuals (in 2015) suggests non-discriminative and brief encounters with body size being a cue for mating. This mating strategy may be beneficial for males, as Humboldt squid live in groups where competition for mates is likely high. The energetic costs of male-to-male mating events may be counterbalanced by the fitness profits of indiscriminate mating behaviour.
    Type: Article , PeerReviewed
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  • 25
    Publication Date: 2019-04-26
    Description: An interactive (multi-access) global identification key (OncIdent) has been developed for the pelagic marine microcopepod family Oncaeidae and made accessible online. Details of the general approach and development of the key are given in Bottger-Schnack and Schnack (J Nat Hist 49:2727-2741, 2015). After beta-testing, new additions include illustrations for all species and feature attributes considered, plus a textual summary of each species' feature states in the key. Additional taxonomic notes are given where required, highlighting morphological or molecular genetic peculiarities or problems, with links to large data bases leading directly to more comprehensive information about each species. The present paper briefly reviews the taxonomic background for key construction, summarizes the opportunities and limitations of the current online version OncIdent2.0, and provides guidance for its practical use.
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  • 26
    Publication Date: 2019-04-30
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    In:  Swiss Meteorological Agency, Payerne
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    In:  Swiss Meteorological Agency, Payerne
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    Format: text/tab-separated-values, 513 data points
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  • 29
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    In:  Swiss Meteorological Agency, Payerne
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    Format: text/tab-separated-values, 751600 data points
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    In:  Swiss Meteorological Agency, Payerne
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 803400 data points
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  • 32
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-01-31
    Type: Dataset
    Format: text/tab-separated-values, 57 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 3380 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 3449 data points
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    In:  Swiss Meteorological Agency, Payerne
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    Format: text/tab-separated-values, 275086 data points
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    In:  Swiss Meteorological Agency, Payerne
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    Format: text/tab-separated-values, 431972 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 446372 data points
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  • 38
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 417584 data points
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  • 39
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 892616 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 273556 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 777332 data points
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  • 42
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    In:  Swiss Meteorological Agency, Payerne
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    Format: text/tab-separated-values, 869268 data points
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  • 43
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    In:  Swiss Meteorological Agency, Payerne
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 3395 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 858240 data points
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 1551 data points
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  • 47
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 3326 data points
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  • 48
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 803288 data points
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  • 49
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 280062 data points
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  • 50
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 863756 data points
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  • 51
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 1361 data points
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  • 52
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 890904 data points
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  • 53
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 279428 data points
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  • 54
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 612 data points
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  • 55
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 446344 data points
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  • 56
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
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    Format: text/tab-separated-values, 824164 data points
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  • 57
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 1282 data points
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  • 58
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    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-01
    Type: Dataset
    Format: text/tab-separated-values, 777452 data points
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  • 59
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    In:  Zentralanstalt für Meteorologie und Geodynamik, Wien
    Publication Date: 2019-04-30
    Description: Vegetation height has been derived from Sentinel-1 satellite data acquired in VV mode. Masking based on Sentinel-2 has been applied. Areas with NDVI 〈 0.4 are excluded for vegetation height retrieval in order to account for effects related to C-band scattering from rough and bare surfaces. Areas with VV 〈 -15.4 dB (and NDVI 〉 0.4) are flagged as well as indicator for anomalous high values in vegetation related indices with at the same time low vegetation height. The remaining land area is assigned vegetation heights up to 160 cm. All heights 〉 160 cm are excluded and labelled as a separate class. Covered areas are: Yamal peninsula (Russia), Usa Basin (Russia), Lena Delta (Russia), Kytalyk (Russia), Mackenzie Delta (Canada), Umiuaq (Canada), Barrow (Alaska), Teshekpuk (Alaska), Toolik (Alaska) and Seward peninsula (Alaska). For more Information see the product documentation.
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    Format: text/tab-separated-values, 80 data points
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  • 60
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
    Type: Dataset
    Format: video/mpeg, 2101.0 MBytes
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
    Type: Dataset
    Format: video/mpeg, 2124.0 MBytes
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
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    Format: video/mpeg, 1105.0 MBytes
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
    Type: Dataset
    Format: video/mpeg, 966.0 MBytes
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
    Type: Dataset
    Format: video/mpeg, 2075.0 MBytes
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    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
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    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-07
    Type: Dataset
    Format: text/tab-separated-values, 267 data points
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  • 69
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    Unknown
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-06
    Type: Dataset
    Format: video/mpeg, 313.0 MBytes
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  • 70
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    Unknown
    PANGAEA
    In:  Japan Meteorological Agency, Tokyo
    Publication Date: 2019-04-29
    Type: Dataset
    Format: text/tab-separated-values, 4679 data points
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  • 71
    facet.materialart.
    Unknown
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-03-20
    Type: Dataset
    Format: text/tab-separated-values, 1750 data points
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  • 72
    facet.materialart.
    Unknown
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-12
    Type: Dataset
    Format: text/tab-separated-values, 22920 data points
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  • 73
    Publication Date: 2019-04-30
    Description: One Dimensional Frequency domain Electromagnetic Model: A tool to model the response of frequency domain EM instruments for up to 5 layers in a 1D model. Installation requires internet access.
    Type: Dataset
    Format: application/zip, 914.0 kBytes
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  • 74
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    Unknown
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Publication Date: 2019-02-13
    Type: Dataset
    Format: text/tab-separated-values, 1979 data points
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  • 75
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    PANGAEA
    In:  Nicholas School of the Environment and Earth Sciences, Duke University, Durham
    Publication Date: 2019-02-13
    Description: A model of streams with Strahler order 4 or higher for the Amazon River watershed area, derived from the SRTM 1 arcsecond product. Areas where the 1 arcsecond data product is unavailable were filled with the 3 arcsecond product, resampled to 1 arcsecond; streams segments overlapping these areas are not included. Four products are provided: 1) The final digital elevation model, with voids filled from the 3 arcsecond SRTM product, and sinks filled with the ESRI ArcGIS fill tool. 2) The stream model derived from this DEM, with lengths and flow directions computed in the ESRI South American Lambert Conformal Conic projection. 3) All watersheds of Strahler order 9, 10, 11 or 12 (the order 12 watershed being the full Amazon River watershed), with area computed in the ESRI South American Albers Equal Area Conic projection. 4) Location of voids in the 1 arcsecond SRTM data product.
    Type: Dataset
    Format: text/tab-separated-values, 20 data points
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  • 76
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    PANGAEA
    In:  Tartu Observatoorium, Toravere
    Publication Date: 2019-02-14
    Type: Dataset
    Format: text/tab-separated-values, 1036800 data points
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  • 77
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    Unknown
    PANGAEA
    In:  South African Weather Service, Pretoria
    Publication Date: 2019-03-06
    Type: Dataset
    Format: text/tab-separated-values, 690257 data points
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  • 78
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    Unknown
    PANGAEA
    In:  Supplement to: Widhalm, Barbara; Bartsch, Annett; Roth, Achim; Leibman, Marina O (2018): Classification of Tundra Regions with Polarimetric Terrasar-X Data. IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium,22-27 July 2018, Valencia, Spain, 8551-8554, https://doi.org/10.1109/IGARSS.2018.8518283
    Publication Date: 2019-02-23
    Description: Permafrost is an essential element of the cryosphere, which will be strongly affected by global warming. Although permafrost cannot be measured directly with remote sensing, many permafrost features are observable. Polarimetric information can be used in this context. Polarimetric data of TerraSAR-X is the basis for a local landcover classification presented here, which reflects different scattering mechanisms. The resulting classification aims on the identification of process areas and periglacial features such as thaw slumps (bare wet surfaces) and thaw lakes as well as wetland areas. The following regions are covered in the dataset: Barrow (Alaska), Mackenzie Delta (Canada), Kytalyk (Russia), Lena Delta (Russia), Vaskiny Dachi (Russia), Herschel Island (Canada).
    Type: Dataset
    Format: text/tab-separated-values, 30 data points
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  • 79
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    PANGAEA
    In:  Supplement to: Durán-Alarcón, Claudio; Boudevillain, Brice; Genthon, Christophe; Grazioli, Jacopo; Souverijns, Nils; van Lipzig, Nicole; Gorodetskaya, Irina V; Berne, Alexis (2019): The vertical structure of precipitation at two stations in East Antarctica derived from micro rain radars. The Cryosphere, 13(1), 247-264, https://doi.org/10.5194/tc-13-247-2019
    Publication Date: 2019-01-29
    Description: Antarctic precipitation is the main positive component in the surface mass balance of the Antarctic ice sheet, thus it is closely related to the evolution of the sea level worldwide. The lack of observations, at both surface and the vertical structure, have hindered the understanding of this important component. Recently a study of the vertical structure of the precipitation in Antarctica have been carried out using micro rain radar (MRR) observations (Durán-Alarcón et al., 2019, TC) at two different sites: Dumont d'Urville (DDU) and Princess Elisabeth (PE) stations. The present collection consists in 2-years of vertical profiles of effective reflectivity (Ze), mean Doppler velocity (W), spectral width (SW) and snowfall rate (S) derived from a K-band vertically-pointing micro rain radar (MRR), obtained at DDU in the framework of the Antarctic Precipitation Remote Sensing from Surface and Space project (APRES3). The observation range of the profiles is between 300 m and 3 km above ground level, with 100m and 1h of vertical and temporal resolutions, respectively. Vertical profiles were separated into surface precipitation and virga (i.e., precipitation that completely sublimes before reaching the surface) to evaluate the impact of virga on the structure of the vertical profiles. The strong katabatic winds blowing at DDU induce a decrease in Ze near to the ground due to the sublimation of the snowfall particles, and the W and SW increases as the height decreases. It was observed that virga is a frequent phenomenon at DDU, since more than a third (36%) of the profiles of precipitation observed with MRR corresponded to virga cases (more details in Durán-Alarcón et al., 2019, TC). This unique dataset of Antarctic precipitation observations in the low troposphere represents a great opportunity to better understand the current numerical models and satellite observations.
    Type: Dataset
    Format: application/x-netcdf, 10.0 MBytes
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  • 80
    Publication Date: 2019-04-30
    Description: Microwave-induced self-organization of membraneous structures with different morphology in hydrolized FeCl3 colloid (200 W, 2.45 GHz,1 min). The local MW treatment conditions and the precoursor layer thickness determine the type of emerging structures.
    Type: Dataset
    Format: application/zip, 337.0 MBytes
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  • 81
    Publication Date: 2019-04-30
    Description: Membraneous structure self-organization in FeCl3 colloids under microwave treatmet (450 W, 2.45 GHz) occurs due to the hydrolytic polycondensation of the ferric oxohydroxides. A gentle 1 min MW treatment results in various structure formation, while the longer exposition leads to either amorphous or partially crystallyzed mineral patterns.
    Type: Dataset
    Format: application/zip, 159.0 MBytes
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  • 82
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    PANGAEA
    In:  Universidade Federal de Santa Maria
    Publication Date: 2019-02-22
    Description: Unmanned aerial vehicle (UAV) photographs acquired at 50 meters above ground in May 29, 2018 at 5 pm (Brazilian Meridian Time zone -3:00) over the Federal University of Santa Maria campus of Frederico Westphalen - UFSM FW. The data were used to characterize the protection area within the campus and evaluate the potential of UAV scenes to such applications.
    Type: Dataset
    Format: text/tab-separated-values, 444 data points
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  • 83
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 3255 data points
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  • 84
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 276981 data points
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  • 85
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 316948 data points
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  • 86
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 319263 data points
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  • 87
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 301604 data points
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  • 88
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    PANGAEA
    In:  Swiss Meteorological Agency, Payerne
    Publication Date: 2019-02-23
    Type: Dataset
    Format: text/tab-separated-values, 1626 data points
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  • 89
    Publication Date: 2019-04-30
    Description: In this dataset cycle we consider a multifactor nature of the self-organization procees of soft matter dissipative microstructures from the iron-containing colloidal precursors with different particle size under microwave irradiation. The resulting structures' morphology determined by the dehydration-aggregation procees under the microwave field, as well as their phase state, chemical composition and the degree of crystallinity, are shown to be dependent on the irradiation time, the microwave field power and the particle size of the chemical "precursor".
    Type: Dataset
    Format: application/zip, 160.0 MBytes
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