Since 2011 the JET tokamak has been operated with a metal ITER-like wall (JET-ILW) including castellated beryllium limiters and lamellae-type bulk tungsten tiles in divertor.This allowed for large scale test of plasma-facing components (PFC).Procedures sectioning into single blocks castellation have developed.This facilitated morphology studies surfaces inside grooves after experimental campaigns 2011-2012 2013-2014.The deposition 0.4-0.5 mm wide is 'shallow'.It reaches 1-2 12 deep...

As a variety of wearable electronics with different functions have emerged, multifunctional devices self-powered nature are desired for solving both problems the tighter on-body wearing space and energy budget. Herein, we propose an eccentric-rotor-based electromagnetic vibration harvester (EMVEH) to function as ultralow-frequency biomechanical scavenging device motion sensor human activity recognition (HAR) at positions, respectively. Kinetic simulations based on Euler-Lagrange equations...

Vanadium dioxide (VO2) as a typically strongly correlated material has an attractive near-room-temperature metal–insulator transition (MIT). This shifted between metallic rutile and insulating monoclinic phases can be reversed by external thermal stimulation, accompanied alterations in the lattice structure electronic energy band structure, which bring about drastic changes optical, electrical, thermal, mechanical properties. Based on these unique characteristics, VO2-integrated element...

Propagation characteristics of obliquely incident terahertz waves in high-temperature magnetized plasma are studied by the scattering matrix method (SMM) and Wentzel–Kramers–Brillouin (WKB) method. Three cases electron density distribution (uniform, double exponential, Epstein distributions) considered. Numerical simulation exhibits that SMM can give out nearly same results with WKB method, which indicates these two methods work very well for solving this problem. Through analysis angle, we...

Surface samples from a full poloidal set of divertor tiles exposed in JET through operations 2010–2012 with ITER-like wall have been investigated using SEM, SIMS, ICP-AES analysis and micro beam nuclear reaction (μ-NRA). Deposition Be retention D is microscopically inhomogeneous. With careful overlaying μ-NRA elemental maps SEM images, it possible to separate surface roughness effects depth profiles at flat regions, without pits. (3He, p) 3–5 MeV energy the accessible for W about 9 μm,...

High-sensitivity flow measurement technology is a prerequisite for precise dynamic control of microfluidics. Despite the advances in structure optimization, more efficient approach to improve device sensitivity can be realized by leveraging materials with higher temperature coefficient resistance (TCR). This work presents design and simulation vanadium dioxide (VO2)-based microfluidic thermal sensor record high sensitivity. Owing phase change property, VO2 demonstrates maximum TCR −0.703...

The propagation characteristics of terahertz waves in high-temperature magnetized inhomogeneous plasma sheath were investigated theoretically by the shift operator finite difference time domain method. Both transmission left and right circularly polarized propagating uniform or non-uniform analyzed. Simulation results reveal that will be influenced parameters external magnetic field. has a high pass filtering characteristic to waves, which provides significant theoretical basis, certain...

Chemical constituents from Zhideke granules were rapidly isolated and identified by ultra-performance liquid chromatography (UPLC) coupled with hybrid quadrupole-orbitrap mass spectrometry (MS) in positive negative ion modes using both full scan two-stage threshold-triggered modes. The secondary fragment information of the target compound was selected compared reported databases related literatures to further confirm possible compounds. A total 47 chemical ethyl acetate extract granules,...

Abstract The transmission characteristics of terahertz waves propagating in high-temperature magnetized inhomogeneous plasma are theoretically analyzed. influence physical parameters, such as the electron density, collision frequency, thickness, magnetic field strength, temperature, and so on, on properties is considered systematically. Numerical results show that these parameters will affect propagation travelling plasma. Especially, when temperature or adjusted to an appropriate value, a...

The pharmacodynamic effect of longan leaves was attributed to various components, especially the flavonoids. In this paper, a new strategy quantitative analysis multicomponents by single marker (QAMS) method first established synchronously determine 5 components (ethyl gallate (C1), astragalin (C2), quercetin (C3), luteolin (C4), and kaempferol (C5)) in Dimocarpus ultra-performance liquid chromatography (UPLC) high-performance (HPLC). Quercetin (C3) chosen as internal reference. Relative...

This study aims to assess the potential clinical application of targeted next generation sequencing (NGS)-based deep for detection clinically relevant mutations in circulating tumor DNA (ctDNA) obtained from non-small cell lung cancer (NSCLC) patients.Targeted was performed identify High Confidence Somatic Variants (HCSVs) matched tissue (tDNA) and ctDNA 50 NSCLC patients.Our results demonstrated that patients with Stage IV (61.5%) exhibited a higher concordance rate at mutation level...

The feasibility of near-infrared (NIR) spectroscopy for rapid determination potassium, calcium, magnesium, zincum, and iron in Chinese rice wine was studied. 28 samples were different ages (1, 3, 5 years). content trace metals (potassium, iron) measured by atomic absorption (AAS) to check the accuracy NIR determination. transmission spectra collected rectangular quartz cuvettes optical path-lengths 2, 5, 10 mm). Calibration models established partial least squares (PLS) regression. PLS group...

In JET with ITER-like wall, beryllium eroded in the main chamber is transported to divertor and deposited mainly at horizontal surfaces of tiles 1 0 (high field gap closure, HFGC). These are tungsten coated carbon fibre composite (CFC). Surface sampleswere collected following plasma operations 2011–2012 2013–2014 respectively. The surfaces, as well polished cross sections layers have been studied micro ion beam analysis methods (µ-IBA).Deposition Beand other impurities, retention D...

Abstract The transmission characteristics, including reflectivity, transmissivity and absorptivity, of terahertz waves propagating in high temperature magnetized plasmas are studied numerically theoretically. numerical results indicate that the characteristics will be influenced by wave frequency, electron temperature, plasma density, collision thickness external magnetic field. It is found strength field distinctly affects trough absorptivity peak when penetrate plasma. When higher than 10...

The nondestructive and high sensitive analysis of a low content an active pharmaceutical ingredient (API) was difficult problem, especially in complex system formulations. In this paper, rapid no sample preparation method developed, which used 1064 nm Raman spectrometer to detect entecavir monohydrate (ETV-H) Baraclude tablets. Entecavir drug approved by FDA for the treatment chronic hepatitis B became first choice market. wavelength selection results displayed that signal-to-background...

Abstract The dynamical behaviors of dusty plasma can be described by a (3+1)-dimensional modified Zakharov-Kuznetsov equation (mZKE) when the distribution ions is vortex-like. critical stable conditions for line solitons are obtained linear stability analysis, which also confirmed nonlinear dynamic evolution. An interesting phenomenon found from numerical results, maybe first time, that unstable mZKE will evolve into one or more completely localized soliton(s) after long time Subsequently,...

Experimental results from microbeam analyses on divertor tiles, through 2011-2012 and 2013-2014 operations in JET-ILW, showed that the deuterium retention beryllium impurity deposition were non-uniform rough surface micro meter scale. Frequently, Be D accumulated within pits, cracks valleys range of ∼10 μm to ∼100 selectively at side slopes larger pits. In deposited layers, it was also observed cylindrical structures grow a specific direction with respect magnetic field. this work, sample...