Satellite-based precipitation estimates with high quality and spatial-temporal resolutions play a vital role in forcing global or regional meteorological, hydrological, agricultural models, which are especially useful over large poorly gauged regions. In this study, we apply various statistical indicators to comprehensively analyze the compare performance of five newly released satellite reanalysis products against China Merged Precipitation Analysis (CMPA) rain gauge data, respectively,...

Abstract Over the last two decades, role of vegetation in environmental and ecological restoration surface water bodies has received much attention. In this context, momentum exchange between flow through main channel riparian zone is a key mechanism. The primary goal study to investigate bank density on dynamics across whole channel. This experimental presents major findings from series measurements having sloping with at varying densities. experiments are conducted under same, uniform...

Porous Cr-Si intermetallic compounds were prepared by powder metallurgy using Cr and Si powders as raw materials. The oxidation kinetics of the porous at 700 ℃ to 1000 was investigated, evolution physical phase, pore structure surface morphology materials before after analyzed. results show that in process high-temperature cyclic mainly relies on elemental diffusion, products are attached material form particles.Cr2O3 SiO2 main components film, dense protective film can effectively inhibit...

Foam pollution in the tailwater discharge from coastal power plants poses a significant challenge. However, mechanisms underlying foam formation and stability remain understudied, which hinders development of effective control strategies. This study investigated impacts temperature algal concentration on through simulation experiments to elucidate stability. A laboratory device was developed adjust measure layer height, half-life, bubble diameter, surface tension, viscosity. used replicate...

ESP (English for Specific Purposes) is prevailing in China nowadays, but with the traditional teaching model, its development has been blocked by limitation of teaching. Researchers are exploring new model English teaching, they combine MOOC (Massive Open Online Courses) and ⿿Flipped Classroom⿿(a reversal teaching) theoretically instead practically. With theory constructivism, paper focuses especially on implementation model. The taken into practice combination ESP, classroom⿿. According to...

The detection of hydrogen sulfide (H2S), the third gas signaling molecule, is a promising strategy for identifying occurrence certain diseases. However, conventional single- or dual-signal can introduce false-positive false-negative results, which ultimately decreases diagnostic accuracy. To address this limitation, we developed luminescent, photothermal, and electrochemical triple-signal platform by optically trapping synthetic highly doped upconversion coupled SiO2 microbeads coated with...

This study presents results from an experimental campaign to explore how different riparian zone characteristics may facilitate the transport or capturing of plastics floating through fluvial system. Specifically, following field observations for vectors, a substantial number flume experiments has been designed assess effect macro-plastics and characteristics. The were analyzed using particle tracking velocimetry techniques derive metrics (such as velocities) sizes shapes, released at five...

Abstract Extracellular vesicles (EVs) had been described as a next‐generation drug delivery system, due to the compelling evidence that they can facilitate transfer of variety biomolecules between cells. The most frequently used strategy for loading protein cargoes is endogenous engineering EVs through genetic fusion interest (POI) and scaffold proteins with high EV‐sorting ability. However, lack become major issue hindering promotion this technology. Herein, we proposed novel screening...

Piezoelectric gauges were used to measure the shock wave overpressure of aluminized explosives and a TNT charge.An infrared thermal-imaging spectrometer was collect signatures produced by explosion fireball when examined detonated.The measurement estimate surface temperatures dimensions fireball.Two explosive compositions (RDX/Al/AP RDX/Al/B/AP) have been analyzed.500 g charges prepared studied, their equivalences calculated according experimental data law.The highest fireballs these up 1600...

An all-glass extrinsic Fabry–Perot interferometer (EFPI) is demonstrated for thermal-optic coefficient (TOC) of water, glycerol, and their mixture (volume ratio 1:1). The compensation the thermal expansion (FP) cavity realized by assembling a glass capillary optical fibers through CO2 laser welding. responses EFPIs are tested in air at different lengths 578.6 μm, 911.7 1520.3 respectively. corresponding refractive index errors induced FP negligible, which to be 4.33×10−6 RIU/°C, 4.13×10−6...

This paper deals with a master-slave control strategy for ISOP (input-series and output-parallel) connected full-bridge DC-DC converter system, each separate module is controlled by phase-shift method. The master regulates the output voltage of whole overcomes problem narrow range regulation. slave balances input voltages between two modules. At same time, has advantages high flexibility that it easy to implement modularization, which suitable power system. In this paper, principle method...

At present, the study on dominant frequency of blasting vibration is still a worldwide problem. Compared with mature research particle peak velocity vibration, researches are much less. In this paper, by analyzing main influencing factors frequency, an attenuation equation induced has been proposed dimensional analysis combined theory radial spherical wave propagation. The applied to fitting measured in Zhoushan Green Petrochemical Base China, which obtained favorable correlation. Based...

An external cavity wavelength-fiber ring laser (ECWTFL) based on a semiconductor optical amplifier and combined wavelength scanning filter in the Littrow configuration is proposed experimentally demonstrated. With benefit of combination an Lyot filter, achieves single-mode narrow linewidth output with 1.75 kHz. The tuning range reaches 133 nm, covering entire S + C band. ECWTFL used for demodulation fiber EFPI sensor; result shows that has ability to demodulate small cavity-length FPI sensor.

Abstract Background Robot‐assisted surgery (RAS) systems help surgeons performing accurate operations, but a number of drawbacks render them not yet suitable for clinical theaters and procedures. In this paper, novel vision guided robotic system is proposed to facilitate navigation Methods A hybrid designed, consisting passive serial arm an active parallel frame. Navigation accomplished in three steps: approaching, aiming insertion. First, the target safely approached with arm. Second,...

Flume experiments were performed to test four plant mimics with different stiffness reveal the effect of on wave dissipation and turbulence process. The built silica gel rod groups, their bending elastic modulus was measured as a proxy for stiffness. regular velocity distribution, characteristics, groups studied in flume experiment. Results show that, when ran through flexible period changed gradually from unimodal bimodal, secondary peak more apparent mimics. change intensity showed that...

High-pressure jet grouting is widely used in the construction of cut-off wall hydraulic engineering. Compared to high-pressure for foundation improvement, engineering has lower requirements advance consolidation and provision bearing capacity, more focus on providing an anti-seepage effect ensuring continuous integrity wall. In past, research focused application treatments, efficiency relatively insufficient. Therefore, this study, a self-developed ipsilateral multi-nozzle machine with large...

In order to solve the problem of vegetation restoration in traditional heap leaching rare earths, a novel technology is proposed. technology, liquid laterally injected into earth pile from side end so that can be carried out quickly on top pile. this study, laboratory test was performed investigate permeability ion-adsorbed under lateral injection conditions. Four samples with varied combinations mineral particles at different sizes were adopted emphatically discuss influence particle...

This paper presents the results of recent field investigations on geological hazards along Sichuan-Tibet Highway in Southwestern China. It was found that one section highway has been facing severe problems slope failure. is between Linzhi and Basu it most dangerous part system to road users over last fifty years. Based examination structural geology, Quaternary stratigraphy petrography, this classification, distribution hazard levels failures section. The usually occurred slopes comprising...