In this study, a novel Rayleigh scattering based optical fibre sensing technology is proposed and demonstrated to deliver a distributed, real-time and accurate …
Consult MoreGenerally, the theoretical analysis of the fluorescent life time temperature measurement is based on the assumption of the exponential life time characteristic, but in practice, the actual curve of the fluorescence are different from exponential. This is the key-influence on the stability of the high precision fluorescent measurement system. The …
Consult MoreThe use of two-line atomic fluorescence (TLF) as a diagnostic tool in combustion research offers a number of advantages over other temperature measurement techniques. The most important is its potential to take data at rates high enough (10 kHz) to follow turbulent flow. An experimental investigation of the feasibility of constructing a TLF system with these …
Consult MoreThis review discusses four evaluation criteria of energy storage technologies: safety, cost, performance and environmental friendliness. The constraints, research progress, and …
Consult MoreThe organic ligand [1,1′-biphenyl]-3,5-dicarboxylic acid with a high T 1 energy level and narrow emission band was selected to prepare the proposed single-lanthanide MOF, DyBPDA. The intensity ratio originating from TCELs of Dy 3+ was used as a thermometric parameter to realize the temperature sensing performance from 303 to …
Consult MoreHerein, we systematically categorize the currently reported fluorescence thermometers based on the aspects of fluorescence intensity and wavelength, reveal the …
Consult MoreA technique is proposed and demonstrated for measuring combustion temperatures using two-line laser-saturated fluorescence. The rotational temperature of OH is determined by saturating two different rotational transitions in the (0,0) band of the A2∑+–X2Π electronic system and detecting fluorescence emission which originates from the laser-pumped …
Consult Moretemperature. The fluorescence spectra were obtained in the. temperature range from 303 to 423 K. The effects of liquid. temperature, liquid pressure, dopant concentration and. laser energy on the ...
Consult MoreA simple energy level diagram in Figure 7 serves as the basis for obtaining a simple rate equation illustrating: (1) that the fluorescence is characterized by single exponential decay, and (2) the temperature dependence of this decay. It is assumed that the state is
Consult MorePermana, I., et al.: Performance Investigation of Thermal Management …THERMAL SCIENCE: Year 2023, Vol. 27, No. 6A, pp. 4389-4400 4393 where the μ e = μ + μ i of eq. (3) is the sum of the laminar flow and the turbulent viscous coeffi-cient, i.e., the effective viscosity coefficient and F – the external body forces in the i direction ...
Consult MoreAcquiring the temperature of a single living cell is not a trivial task. In this paper, we devise a novel nanothermometer, capable of accurately determining the temperature of solutions as well as biological systems such as HeLa cancer cells. The nanothermometer is based on the temperature-sensitive …
Consult MoreTo address the broad landscape of emerging and future energy storage applications, JCESR turned from its former top-down approach pursuing specific battery …
Consult MorePostharvest Biology and Technology 45 (2007) 73–80 Chlorophyll a fluorescence measurements to evaluate storage time and temperature of Valeriana leafy vegetables Antonio Ferrante ∗, Tommaso Maggiore Dip.
Consult MorePrinciple. Infrared (IR) thermography is a non-intrusive, two-dimensional technique for the whole-field measurement of surface temperature. An infrared scanning radiometer (IRSR) detects the electromagnetic energy radiated in the IR spectral band by the surface of interest and converts it into an electronic signal.
Consult MoreFor example, fluorescence temperature measurements of stretched polypropylene doped with BTBP can be made using the ratio of intensities at 544 nm and 577 nm, but an-other …
Consult MoreThe dependence of fluorescence intensity on temperature change has made fluorescent microsphere temperature measurement a widely available technology. In this work, blue and orange polystyrene microspheres were introduced into sodium carboxymethyl cellulose (CMC-Na) hydrogel to successfully construct a dual-emission fluorescent material. This …
Consult MoreAn investigation of the characteristics of temperature-dependent fluorescence of a Cerium Ytterbium (Yb3+)- doped silica fiber (CYDF) is presented. A 0.3-m long CYDF is diode-pumped at 976 nm and ...
Consult MoreDownload scientific diagram | Measurement of battery energy storage cabinet during charging and discharging; (a) charging condition and (b) discharging condition from publication: Performance ...
Consult MoreAbstract and Figures. The author presents a thesis based upon the use of the fluorescent properties of rare earth doped materials. The thesis commences with a review of the current fibre sensor ...
Consult MoreAbstract. Electrochemical energy storage is one of the critical technologies for energy. storage, which is important for high‐efficiency utilization of renewable energy and …
Consult MoreQuenching Effects on Laser-Fluorescence Measurements of OH Rotational Temperature in H2/O2/Ar Flames†. Abstract The OH rotational temperature profiles in a series of low-pressure (76-torr) H2/O2/Ar flames (Φ = 0.88,0.98,1.22,1.37,and 1.50) were measured via laser-induced fluorescence (LIF) from the A….
Consult MoreAs increasing the integration time during fluorescence measurements would harm the time resolution, ... Y. P. Temperature dependence of the energy gap in semiconductors. Physica 34, 149–154 (1967).
Consult MoreTwo imaging methods are employed to observe the temperature field surrounding cavitation bubbles: shadowgraph imaging, which provided high-framerate (10 4 fps) qualitative observation of temperature within the liquid, and planar-laser-induced fluorescence (PLIF) imaging, which gave quantitative temperature measurements at a …
Consult MoreThe numerical coefficients linearly relating the effects of stress (including pressure), temperature, and composition to shifts in the energies of the Cr-related fluorescence in alumina (Al 2 O 3) are reviewed.The primary focus is the shift of the R 1 and R 2 "ruby" fluorescence lines under conditions typical for stress determination in …
Consult MoreA technique is proposed and demonstrated for measuring combustion temperatures using two-line laser-saturated fluorescence. The rotational temperature of OH is determined by saturating two different rotational transitions in the (0,0) band of the A(2)Sigma(+)-X(2)II electronic system and detecting f …
Consult MoreThe energy storage consists of the cabinet itself, the battery for energy storage, the BMSS to control the batteries, the panel, and the air conditioning to maintain the battery …
Consult MoreThis paper presents a new temperature measurement technique in a liquid, based on laser-induced fluorescence of rhodamine B. The fluorescence intensity is detected on three spectral bands, where the ratios between the emission of each band determine the temperature while correcting for the effects of fluorescent re-absorption. …
Consult MoreTransparent dielectric ceramics are splendid candidates for transparent pulse capacitors (TPCs) due to splendid cycle stability and large power density. However, the performance and service life of TPCs at present are threatened by overheating damage caused by dielectric loss. Here, a cooperative op …
Consult MoreThe use of two-line atomic fluorescence (TLF) as a diagnostic tool in combustion research offers a number of advantages over other temperature measurement techniques. The most important is its potential to take data at rates high enough (10 kHz) to follow turbulent flow. An experimental investigation of the feasibility of constructing a TLF ...
Consult MoreThe set-up for the diode laser TLAF measurements is shown in Fig. 1 ams from two blue diode lasers emitting at 410.2 and 451.1 nm [26] were superimposed using a dichroic mirror. The overlapped beams were focussed to a waist of around 100 μm at the central vertical axis of the burner and the focal region was imaged through an …
Consult MoreWe propose a new concept exploiting thermally activated delayed fluorescence (TADF) molecules as photosensitizers, storage units and signal transducers to harness solar thermal energy. Molecular composites based on the TADF core phenoxazine–triphenyltriazine (PXZ-TRZ) anchored with norbornadiene (NBD) were …
Consult MoreAt the same time, the nanoparticles have good temperature sensing properties at the thermally coupled energy levels of 700 and 646 nm for Tm 3+. Using its fluorescence intensity ratio, accurate temperature measurements can be performed, and it has been found that it exhibits different temperature sensing properties in low and high …
Consult MoreThe introduction of fluorescence-based TSA has significantly enhanced the ease of identifying conditions that enhance protein stability, as most of the used external dyes are compatible with commonly available real-time PCR machines. In comparison to most of the other methods, DSF is fast (20–120 min) [ 86 ].
Consult MoreMay 1, 2019, D. Banks and others published Planar laser induced fluorescence for temperature measurement of optical ... after the collapse of bubble dissipates most energy 36, 38, the maximum ...
Consult MoreIn. previous publications, we described a process monitoring technique for measuring resin tempera-ture (1 4). The method, based on fluorescence spec-troscopy, employs an organic fluorescent dye that is mixed with the resin at very low concentrations, less than 10 5 mass fraction of dye in the resin. At this low concentration, the dyes are ...
Consult MoreLaser-induced fluorescence spectroscopy for kinetic temperature measurement of xenon neutrals and ions in the discharge chamber of a radiofrequency ion source February 2023 DOI: 10.1007/s44205-022 ...
Consult MoreIn cucumber, chlorophyll a fluorescence was used to determine the optimal storage temperature and the related fluorescence parameters (Fv/Fm ratio, Fv, Fm) were able to show differences at the different temperatures (Lin and Jolliffe, 2000).
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