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Role of Auger Recombination in Plasmon Controlled Photoluminescence\n Kinetics in Metal-Semiconductor Hybrid Nanostructures

Sabina Gurung、Asha Singh、J. Jayabalan2020-08-06arXiv (Cornell University)

Spectroscopic studies of semiconductor quantum dots (SQDs) addressing the\nproblem of non-radiative carrier losses is vital for the improvement in the\nefficiency of various light-emitting devices. Various designs of SQDs emitter\nlike doping, forming core-shell and alloying has been attempted to suppress\nnon-radiati…

Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchQuantum Dots Synthesis And Properties

CorRelator: An interactive and flexible toolkit for high-precision cryo-correlative light and electron microscopy

Jie Yang、Matt Larson、Bryan Sibert 等 5 位作者2020-08-06bioRxiv (Cold Spring Harbor Laboratory)

Abstract Cryo-correlative light and electron microscopy (CLEM) is a technique that uses the spatiotemporal cues from fluorescence light microscopy (FLM) to investigate the high-resolution ultrastructure of biological samples by cryo-electron microscopy (cryo-EM). Cryo-CLEM provides advantages for identifying and disti…

Photosynthetic Processes and MechanismsAdvanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy Techniques

Preparation of Oxide-Coated Cellulose Fiber

Yoshitaka Gushikem、Eduardo Aparecido Toledo2020-08-06OpenAlex

Cellulose is the most abundant material on Earth; it is the main constituent of plants, serving to maintain their structure, and it is also found in bacteria, fungi, algae, and even in animals. It is a natural polymer formed by β-D-glucopyranose linked by (1 → 4) glucosidic bonds [ 1 , 2 ]. The monomelic unit is forme…

Silicone and Siloxane ChemistryMaterial Properties and ApplicationsPigment Synthesis and Properties

Generation and manipulation of chiral terahertz waves emitted from the three-dimensional topological insulator Bi2Te3

Haihui Zhao、Xinhou Chen、Chen Ouyang 等 15 位作者2020-08-06arXiv (Cornell University)

Arbitrary manipulation of broadband terahertz waves with flexible polarization shaping at the source has great potential in expanding real applications such as imaging, information encryption, and all-optically coherent control of terahertz nonlinear phenomena. Topological insulators featuring unique spin-momentum loc…

Metamaterials and Metasurfaces ApplicationsTopological Materials and PhenomenaTerahertz technology and applications

Performance Modeling of Supercritical Carbon Dioxide Zigzag-Channel Printed Circuit Heat Exchangers

Katrine Bennett2020-08-06Digital Scholarship - UNLV (University of Nevada Reno)

Supercritical carbon dioxide (sCO2) is currently being studied as the working fluid in power producing Brayton cycles due to its excellent physical and thermodynamic properties, especially near the critical point. Printed circuit heat exchangers (PCHEs) are being considered for use as condensers and recuperators for t…

Catalytic Processes in Materials ScienceHeat Transfer and OptimizationProcess Optimization and Integration

Exploiting Aharonov-Bohm oscillations to probe Klein tunneling in tunable pn-junctions in graphene

Jan Dauber、Koen J. A. Reijnders、Luca Banszerus 等 9 位作者2020-08-06arXiv (Cornell University)

One of the unique features of graphene is that the Fermi wavelength of its charge carriers can be tuned electrostatically over a wide range. This allows in principle to tune the transparency of a pn-junction electrostatically, as this depends on the ratio between the physical extension of the junction and the electron…

Graphene research and applicationsQuantum and electron transport phenomenaMolecular Junctions and Nanostructures

Weatherability of Arc Thermal Spray Al-Mg Coating in a Simulated Marine Environment

Atsushi NAKANO2020-08-06OpenAlex

Anticorrosion property of Al-5mass%Mg sprayed coating was evaluated by an atmospheric exposure test simulating marine environment for one-year. The test simulating marine environment means an accelerated exposure test where artificial seawater is sprayed on the coating surface in a general atmospheric exposure test. W…

Corrosion Behavior and InhibitionMetal and Thin Film MechanicsHigh-Temperature Coating Behaviors

Rationally patterned electrode of direct-current triboelectric nanogenerators for ultrahigh effective surface charge density

Zhihao Zhao、Yejing Dai、Di Liu 等 7 位作者2020-08-06Research Square

Abstract As a new-era of energy harvesting technology, triboelectric nanogenerator (TENG) has been invented to convert randomly distributed mechanical energy into electric power for Internet of Things (IoTs) and artificial intelligence (AI) applications. Enhancement of the triboelectric charge density is crucial for i…

Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsTactile and Sensory Interactions

Predicting New Protein Conformations from Molecular Dynamics Simulation Conformational Landscapes and Machine Learning

Yiming Jin、Linus O. Johannissen、Sam Hay2020-08-06OpenAlex

Molecular dynamics (MD) simulations are a popular method of studying protein structure and function, but are unable to reliably sample all relevant conformational space in reasonable computational timescales. A range of enhanced sampling methods are available that can improve conformational sampling, but these do not…

Protein Structure and DynamicsEnzyme Structure and FunctionMachine Learning in Materials Science

Determination of Formation Energies and Phase Diagrams of Transition Metal Oxides with DFT+U

Daniel Mutter、Daniel F. Urban、Christian Elsässer2020-08-06Preprints.org

Knowledge about the formation energies of compounds is essential to derive phase diagrams of multi-component phases with respect to elemental reservoirs. The determination of formation energies using common (semi-)local exchange-correlation approximations of density functional theory (DFT) exhibits well-known systemat…

Metallurgical Processes and ThermodynamicsNuclear Materials and PropertiesElectronic and Structural Properties of Oxides

Strong Correlation in Molecular Periodic Systems from a Variational Reduced Density Matrix Theory

Simon Ewing、David A. Mazziotti2020-08-06arXiv (Cornell University)

Molecular periodic systems have the challenge of not only representing an infinite, albeit periodically repeating, molecule but also treating the strong electron correlation that emerges in such systems. Many post-Hartree-Fock methods that are efficient in moderately correlated molecules often fail to describe strongl…

Advanced Chemical Physics StudiesMolecular Junctions and NanostructuresMachine Learning in Materials Science

Evaluation of Detergency

Erik Kissa2020-08-06OpenAlex

Evaluating detergency for the purposes of improving the design of washing machines considers, in addition of soil removal efficacy, other factors, such as water consumption and energy input. Textiles or fabric samples used for detergency evaluation are soiled with natural soils deposited in actual use of the textile o…

Dyeing and Modifying Textile FibersTextile materials and evaluationsMaterial Selection and Properties

Multi-band nodal links in triple-point materials

Patrick M. Lenggenhager、Xiaoxiong Liu、Stepan S. Tsirkin 等 5 位作者2020-08-06arXiv (Cornell University)

We study a class of topological materials which in their momentum-space band structure exhibit three-fold degeneracies known as triple points. Specifically, we investigate and classify triple points occurring along high-symmetry lines of $\mathcal{P}\mathcal{T}$-symmetric crystalline solids with negligible spin-orbit…

2D Materials and ApplicationsCold Atom Physics and Bose-Einstein CondensatesTopological Materials and Phenomena

An intimate view into the silica deposition vesicles of diatoms

Christoph Heintze、Petr Formánek、Darius Pohl 等 6 位作者2020-08-06Research Square

Abstract Diatoms are single-celled microalgae that produce silica-based cell walls with intricate nano- and micropatterns. Biogenesis of diatom biosilica is a bottom-up process that occurs in large intracellular compartments termed silica deposition vesicles (SDVs). Investigating the mechanism of silica morphogenesis…

Paleontology and Stratigraphy of FossilsProtist diversity and phylogenyDiatoms and Algae Research

Performing Qualitative Mask Fit Testing without a Commercial Kit: Fit Testing Which can be Performed at Home and at Work

Eugenia O’Kelly、Anmol Arora、Charlotte Pearson 等 5 位作者2020-08-06medRxiv

Abstract Introduction Qualitative fit testing is a popular method of ensuring the fit of sealing face masks such as N95 and FFP3 masks. Increased demand due to the COVID-19 pandemic has led to shortages in testing equipment and has forced many institutions to abandon fit testing. Three key materials are required for q…

Infection Control and VentilationTextile materials and evaluations

Validity of Three-Dimensional Tortuous Pore Structure and Fouling of Hemoconcentration Capillary Membrane Using the Tortuous Pore Diffusion Model and Scanning Probe Microscopy

Makoto Fukuda、Hiroki Yoshinoto、Hitoshi Saomoto 等 4 位作者2020-08-06Preprints.org

Hemoconcentration membranes used in cardiopulmonary bypass require a pore structure design with high pure water permeability, and which does not allow protein adsorption and useful protein loss. However, studies on hemoconcentration membranes have not been conducted yet. The purpose of this study was to analyze three-…

Membrane Separation TechnologiesElectrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicine

Hybrid Fluorescent Probes for Imaging Membrane Tension Inside Living Cells

Claire Deo2020-08-06ACS Central Science

ADVERTISEMENT RETURN TO ISSUEPREVFirst ReactionsNEXTHybrid Fluorescent Probes for Imaging Membrane Tension Inside Living CellsExploiting a hybrid synthetic−genetic approach, a novel fluorescent probe enables highly specific imaging of intracellular membrane tension changes.Claire Deo​Claire DeoCell Biology and Biophys…

Lipid Membrane Structure and BehaviorSupramolecular Self-Assembly in MaterialsPhotoreceptor and optogenetics research

Memory-assisted Reinforcement Learning for Diverse Molecular De Novo Design

Thomas Blaschke、Ola Engkvist、Jürgen Bajorath 等 4 位作者2020-08-06Research Square

Abstract In de novo molecular design, recurrent neural networks (RNN) have been shown to be effective methods for sampling and generating novel chemical structures. Using a technique called reinforcement learning (RL), an RNN can be tuned to target a particular section of chemical space with optimized desirable proper…

Advanced Multi-Objective Optimization AlgorithmsManufacturing Process and OptimizationMachine Learning in Materials Science

Copper Price Prediction Using Support Vector Regression Technique

Gabriel Astudillo、Raúl Carrasco、Christian Fernández‐Campusano 等 4 位作者2020-08-06Preprints.org

Predicting copper price is essential for making decisions that can affect companies and governments dependent on the copper mining industry. Copper prices follow a time series that is non-linear, non-stationary, and which have periods that change as a result of potential growth, cyclical fluctuation and errors. Someti…

Corrosion Behavior and InhibitionMetal Extraction and BioleachingMineral Processing and Grinding

Explaining decisions of Graph Convolutional Neural Networks: patient-specific molecular subnetworks responsible for metastasis prediction in breast cancer

Hryhorii Chereda、Annalen Bleckmann、Kerstin Menck 等 9 位作者2020-08-06bioRxiv (Cold Spring Harbor Laboratory)

Abstract Motivation Contemporary deep learning approaches show cutting-edge performance in a variety of complex prediction tasks. Nonetheless, the application of deep learning in healthcare remains limited since deep learning methods are often considered as non-interpretable black-box models. Layer-wise Relevance Prop…

Computational Drug Discovery MethodsBioinformatics and Genomic NetworksMachine Learning in Materials Science