A VUV absorption spectroscopy facility designed for ultra-high spectral resolution is in operation as a dedicated branch on the DESIRS beamline at Synchrotron SOLEIL. This includes unique Fourier transform spectrometer (FTS) and versatile gas sample chamber. The FTS instrument can cover large UV–VUV range from 4 to 30 eV, with an ultimate line width of 0.08 cm −1 window, Δ E / = 7%, over which all features be acquired multiplex way. performance considered middle ground between broadband...

Models of astronomical environments containing CO require accurate molecular data to reproduce and interpret observations. We are conducting experiments at the SOLEIL synchrotron facility acquire for modeling photochemistry in vacuum ultraviolet. The improvement UV spectroscopic instrumentation, both sensitivity resolution, provides more laboratory determinations. report new measurements yielding photoabsorption oscillator strengths predissociation rates, 12C16O 295 K 77 K, four bands from X...

The A˜(2)E(″)←X˜(2)A2 (') spectrum of NO3 radical from 7550 cm(-1) to 9750 has been recorded and analyzed. Our differs previously spectra this transition due jet-cooling, which narrows the rotational contours eliminates spectral interference hot bands. Assignments numerous vibronic features can be made based on both band contour position including unassigned 30 (1) several associated combination We have analyzed our first with an independent anharmonic oscillator model then by a quadratic...

In this paper, we present the design and validation of a new smart textile developed for real time monitoring human breath. The is wearable stretching T-shirt featuring an array six contactless non-invasive sensors placed on human's thoraco-abdominal walls. wireless communicate quasi-simultaneously data to detection base station through Bluetooth protocol. sensor composed spiral shaped multi-material fiber antenna with central frequency at 2.4 GHz connected compact transmitter. are...

Smart textiles and wearable antennas along with broadband mobile technologies have empowered the sensors for significant impact on future of digital health care. Despite recent development in this field, challenges related to lack accuracy, reliability, user’s comfort, rigid form data analysis interpretation limited their wide-scale application. Therefore, necessity developing a new reliable user friendly approach face these problems is more than urgent. In paper, generation antenna...

In this paper, we present a new mobile wireless communication platform for real-time monitoring of an individual's breathing rate. The takes the form wearable stretching T-shirt featuring sensor and detection base station. is formed by spiral-shaped antenna made from multi-material fiber connected to compact transmitter. Based on resonance frequency at approximately 2.4 GHz, relies its Bluetooth contactless non-invasive designed without compromising user's comfort. sensing mechanism system...

The strong electronic absorption systems of the $B^{1}\ensuremath{\Sigma}_{u}^{+}\ensuremath{-}X^{1}\ensuremath{\Sigma}_{g}^{+}$ Lyman and $C^{1}\ensuremath{\Pi}_{u}\ensuremath{-}X^{1}\ensuremath{\Sigma}_{g}^{+}$ Werner bands can be used to probe possible mass-variation effects on a cosmological time scale from spectra observed at high redshift, not only in ${\mathrm{H}}_{2}$ but also second most abundant hydrogen isotopomer HD. High resolution laboratory determination prominent HD lines...

The 3pπD Π1u state of the H2 molecule was reinvestigated with different techniques at two synchrotron installations. Fourier transform spectrometer in vacuum ultraviolet wavelength range DESIRS beamline SOLEIL used for recording absorption spectra D high resolution and absolute accuracy, limited only by Doppler contribution 100 K. From these measurements, line positions were extracted, particular, narrow resonances involving Π1u− states, an accuracy estimated 0.06 cm−1. new data also closely...

Abstract Absorption spectroscopy in the vacuum ultraviolet (VUV) domain was performed on hydrogen-deuteride molecule with a novel Fourier-transform spectrometer based upon wavefront division interferometry. This unique instrument, which is permanent endstation of undulator-based beamline DESIRS synchrotron SOLEIL facility, opens way to VUV range. The HD spectral lines Lyman and Werner bands were recorded 87–112 nm range from quasi-static gas sample windowless configuration Doppler-limited...

New experimental energy levels for the \documentclass[12pt]{minimal}\begin{document}$2p\pi C ^1\Pi _u^-$\end{document}2pπC1Πu− state of D2 are reported extending up to dissociation limit and including rotational quantum numbers N = 10. These data extracted from recent high resolution optical emission spectra, they used a detailed comparison two theoretical approaches, both which fully ab initio based on same state-of-the-art clamped-nuclei potential curves. coupled differential equations...

In this paper, we present a new FTIR-based microfluidic system for Glucose, Fructose and Sucrose detection. The proposed is based on pseudo-continuous flow coupled to microscope-FTIR instrument. detection characterization of sugar samples were performed by recording their absorption spectrum in the wavelength range 700⁻1000 cm - 1 Mid-IR region. designed improve uniformity sample distribution analyzed area versus conventional systems. obtained results different sugars concentrations, show...

La(C2H2) and La(C4H6) are observed from the reaction of laser-vaporized La atoms with ethylene molecules by photoionization time-of-flight mass spectrometry characterized mass-analyzed threshold ionization spectroscopy. is identified as a metallacyclopropene metallacyclopentene. The three-membered ring formed concerted H2 elimination five-membered cycle dehydrogenation C–C bond coupling. Both metallacycles prefer doublet ground state 6s-based unpaired electron. Ionization neutral either...

A flexible sinusoidal-shaped antenna sensor is introduced in this work, which a modified half-wave dipole that can be used for strain sensing applications. The presented an improved extension of the previously respiration monitoring. electrical and radiative characteristics sinusoidal effects geometrical factors are studied. An approach provided designing antenna, equations to estimate parameters based on desired specifications. It shown designed have up 5.5 times more sensitivity compared...

The D^1\Pi_u - X^1\Sigma_g^+ absorption system of molecular deuterium has been re-investigated using the VUV Fourier -Transform (FT) spectrometer at DESIRS beamline synchrotron SOLEIL and photon-induced fluorescence spectrometry (PIFS) 10 m normal incidence monochromator BESSY II. Using FT spectra in range 72 82 nm were recorded quasi static gas 100 K a free flowing jet spectroscopic resolution 0.50 0.20 cm^{-1} respectively . narrow Q-branch transitions, probing states \Pi^- symmetry,...

Monobenzene complexes of yttrium (Y), lanthanum (La), and lutetium (Lu), M(C6H6) (M = Y, La, Lu), were prepared in a laser-vaporization supersonic molecular beam source studied by pulsed-field ionization zero electron kinetic energy (ZEKE) spectroscopy ab initio calculations. The calculations included the second-order perturbation, coupled cluster with single, double, perturbative triple excitation, complete active space self-consistent field methods. Adiabatic energies metal-benzene...

η2-Propadienylidenelanthanum [La(η2-CCCH2)] and deprotiolanthanacyclobutadiene [La(HCCCH)] of La(C3H2) are identified from the reaction mixture neutral La atom activation propyne in gas phase. The two isomers characterized with mass-analyzed threshold ionization spectroscopy combined electronic structure calculations spectral simulations. La(η2-CCCH2) La(HCCCH) formed by concerted 1,3- 3,3-dehydrogenation, respectively. Both prefer a doublet ground state 6s-based unpaired electron, is...

The emission spectrum of the D2 molecule has been studied at high resolution in vacuum ultraviolet region 78.5–102.7nm. A detailed analysis two DΠu1→XΣg+1 and D′Πu−1→XΣg+1 electronic band systems is reported. New improved values level energies upper states have derived with help program IDEN [V. I. Azarov, Phys. Scr. 44, 528 (1991); 48, 656 (1993)], originally developed for atomic spectral analysis. comparison made between observed energy levels solutions coupled equations using newest ab...

Gadolinium (Gd) complexes of benzene (C(6)H(6)) and (1,3,5,7-cyclooctatetraene) (C(8)H(8)) were produced in a laser-vaporization supersonic molecular beam source studied by single-photon pulsed-field ionization zero electron kinetic energy (ZEKE) spectroscopy. Adiabatic energies metal-ligand stretching frequencies measured for the first time from ZEKE spectra. Metal-ligand bonding electronic states neutral cationic analyzed combining spectroscopic measurements with ab initio calculations....

Recently we published [ Liu et al. J. Chem. Phys. 2013 , 139 154312 ] an analysis of the rotational structure B̃-X̃ origin band spectrum isopropoxy, which confirmed that double methyl substitution methoxy to yield isopropoxy radical only slightly lifted degeneracy former's X̃(2)E state. Additionally spectral results provided considerable insight into relativistic and nonrelativistic contributions experimental splitting between components (2)E However, left unexplained was how Jahn-Teller...

A new non-invasive and flexible sensor was fabricated to monitor the muscular activity of upper body muscles. It consists a dry electrode made multimaterial metalpolymer-glass hollow-core fiber electrodes connected custom signal acquisition platform. This only adds negligible contribution recording system's internal noise (7.626 μV peak-to-peak 1.234 RMS; system noise: 6.901 1.205 RMS). Surface electromyograms (sEMGs) biceps bracci trapezius muscles were recorded during maximal voluntary...

Smart sensors embedded into wearables and capable of monitoring vital signs have become an important research topic the technology interest for numerous commercial ventures. Monitoring respiratory rate is challenging due to complexity uniqueness musculoskeletal movements involved in breathing process. At same time, it a critical factor assessing patient health. Multi-material fibers exhibit potential be inter-woven textile used wearable garment measure respiration rate. This study compares...

Phosphate slurries are studied using the XRF technique and effect of particle sizes water content parameters analyzed reported for first time. Samples phosphate slurry with different (425 µm, 300 250 200 160 µm 106 µm) contents (30%, 40%, 50%, 60%) were an energy-dispersive X-ray spectrometer (EDXRF). The results show that relative error measurement varies size sample, element measured. increases increase compounds P2O5, Al2O3, K2O, Cr2O3, Fe2O3 Sr. ratio between errors related to maximum...

While low back pain (LBP) is the leading cause of disability worldwide, its clinical objective assessment currently limited. Part this syndrome arises from abnormal sensorimotor control muscles, involving increased muscle fatigability (i.e., assessed with Biering-Sorensen test) and activation patterns flexion-extension test). Surface electromyography (sEMG) provides measures fatigue development (median frequency drop, MDF) (RMS amplitude change). This study therefore sensitivity validity a...

In this work, we have extended our previous high resolution study of the vacuum ultraviolet emission spectrum D2 molecule [M. Roudjane, et al. J. Chem. Phys. 125, 214305 (2006)] up to 124.2 nm in order investigate B' 1Sigmau+-->X 1Sigmag+ band system. The analysis has been carried out by means a complex visual identification code IDEN [V. I. Azarov, Scr. 44, 528 (1991); 48, 656, (1993)] and supported theoretical calculations using ab initio data [L. Wolniewicz, 103, 1792 (1995); 99, 1851...