The mechanism figure was drawn to intuitively explain the function of FG and FGO in PU matrix during tribological corrosion process.

The size-dependent pressure response of oleate-stabilized CdSe quantum dots (QDs) in paraffin is investigated using diamond anvil cell experiments and density functional theory (DFT). For QDs above 3.0 nm, the photoluminescence shows a blue-shift around 43 meV/GPa, close to value for bulk CdSe, but shift increases strongly nanocrystals less than 3 nm size. Conversely, absorption 45 meV/GPa weakens 35 particles 1.5 No crystallographic phase transitions occur below 2 GPa, optical effects are...

Abstract Sodium (Na) doping is a well‐established technique employed in chalcopyrite and kesterite solar cells. While various improvements can be achieved crystalline quality, electrical properties, or defect passivation of the absorber materials by incorporating Na, comprehensive demonstration desired Na distribution CZTSSe still lacking. Herein, straightforward approach dissolving NaCl into CZTS precursor solution proposed. It demonstrated that favorable ion should comprise precisely...

The schematic was drawn to intuitively describe the anti-corrosion mechanism of functional graphene reinforced polyurethane nanocomposite coatings with regular textures.

We show a unified second-order scheme for constructing simple, robust, and accurate algorithms typical thermostats configurational sampling the canonical ensemble. When Langevin dynamics is used, leads to BAOAB algorithm that has been recently investigated. also useful other types of thermostats, such as Andersen thermostat Nosé-Hoover chain, regardless whether deterministic or stochastic. In addition analytical analysis, two 1-dimensional models three real molecular systems range from gas...

The reason why heating is required remains elusive for the traditional synthesis of colloidal semiconductor quantum dots (QDs) II–VI metal chalcogenide (ME). Using CdTe as a model system, we show that formation Cd–Te covalent bonds with individual Cd- and Te-containing compounds can be decoupled from nucleation growth QDs. Prepared at an elevated temperature, prenucleation-stage sample contains clusters are precursor compound (PC) magic-size (MSCs); bond occurs temperatures higher than 120...

An efficient visible-light-driven photocatalytic oxidation of various 2-substituted dihydropyrimidines and phenolic imines has been achieved using an organic photocatalyst eosin Y bis(tetrabutyl ammonium salt) (TBA-eosin Y) inexpensive oxidant molecular oxygen. With the aid a base, significantly enhanced photoinduced electron transfer from substrates or to excited state TBA-eosin enabled aerobic yield 2-(methylthio)pyrimidines 2-arylbenzoxazoles selectively.

Abstract In this study, for the first time, we found a Subsurface Low Potential Vorticity Water (SLPVW) to east of Taiwan Island (122–124, 21.67–23) via an array comprising 12 current and pressure‐recording inverted echo sounders (CPIESs) from 25 June 2018 29 July 2019. This SLPVW exhibits remarkable intraseasonal variability, with ∼100‐day period Island, corresponding variability in mesoscale eddies. Compared large‐scale climatological mean circulation, eddy can trap as highway westward...

Internal conversion is a vital vibronic loss mechanism which competes with all other photophysical mechanisms, and available in the literature plethora of information on subject. However, this data often difficult to penetrate due its complexity. As well, sheer number methods, it understand method better for certain systems. This comprehensive review state art explores history internal provides context evolution up modern quantum chemistry. We highlight most prevalent methods used study...

Delayed fluorescence pathways are a proven method to allow for strict efficiency increases in myriad of technologies such as light-emitting diodes, multi-resonance effects leading superirradence or hyperafterglow/hyperfluorescence, and...

Abstract Little is known about the nucleation and growth (N/G) of colloidal semiconductor quantum dots (QDs) from prenucleation clusters (PNCs) in dispersion at room temperature. Here, we show that when a pre‐heated sample ZnSe (containing PNC no QDs) dispersed, N/G QDs occurred. When added to QDs, either became larger or kept intact with smaller seen. The associated monomer addition QD dissolution sometimes, two intrinsic energy barriers which increase size. We use temperatures, T 2 1 ,...

Proton-coupled electron transfer (PCET) reactions at various interfaces (liquid/membrane, solid/electrolyte, liquid/liquid) lie the heart of many processes in biology and chemistry. Mechanistic study can provide profound understanding PCET rational design new systems. However, most mechanisms a liquid/liquid interface have been proposed based on electrochemical spectroscopic data, which lack direct evidence for possible intermediates. Moreover, as one type soft is dynamic, making...

The absorption spectra of congenetic wurtzite (WZ) and zincblende (ZB) CdS magic-sized clusters are investigated. We demonstrate that the exciton peak positions can be tuned by up to 500 meV varying strong coupling between X-type ligands semiconductor cores, while addition L-type primarily affects cluster midgap states. When Z-type displaced ligands, red shifts in observed, despite fact there is a small decrease size. Density functional theory calculations used explain these findings they...

A non-empirical equation describing the effect of size on temperature dependence optical bandgap CdS (dEg/dT) is obtained basis Brus equation. Intriguingly, we find that dEg/dT diverges strongly from bulk values only within "extreme confinement" (EC) regime. We conducted both experimental and theoretical investigations absorption spectra clusters quantum dots as a function above room temperature. Our results show value in EC regime 2.5 times higher than strong confinement Notable ligand...

Siloxane modified acrylic resin coatings with positive and negative replication textures were successfully fabricated by biomimicking the surface structures of natural <italic>lotus leaf</italic> <italic>white crab shell via</italic> a method.

A series of modified silicone surfaces with different textures, shapes and surface roughnesses were fabricated. Those sizes smaller than algae effective in inhibiting <italic>N. closterium</italic>, <italic>P. tricornutum</italic> <italic>Chlorella</italic> reduction ratios 49%, 75% 81%.

Langevin dynamics has become a popular tool to simulate the Boltzmann equilibrium distribution. When repartition of equation involves exact realization Ornstein-Uhlenbeck noise, in addition conventional density evolution, there exists another type discrete evolution that may not correspond continuous, real dynamical counterpart. This virtual case is also able produce desired stationary Different types lead different numerical schemes, which accuracy and efficiency are investigated through...

Abstract Mesoscale eddies can alter the propagation of wind-generated near-inertial waves (NIWs). Different from previous studies, subsurface mooring observed NIWs are generated outside an anticyclonic eddy (ACE) and then interact with arriving ACE. It is found that arrival ACE, accelerate to propagate downward maximum vertical wavelength group velocity reach ∼500 m ∼35 day −1 , respectively. When entering core energy trapped finally stalls at a critical depth, which basically corresponds...

Abstract The Yellow Sea Cold Water Mass (YSCWM), a seasonal bottom‐layer water mass in the (YS) most prominent summer, has always been overlooked previous studies investigating variations winter Surface Temperature. Here, using observations and high‐resolution numerical modeling, we reveal for first time significant contribution of thermal stratification associated with YSCWM to sea surface cooling formation westward‐shifted Warm Tongue (YSWT) early winter. Heat budget analyses indicated...