Relevant bibliographies by topics / UV index

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  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'UV index'

Author: Grafiati
Published: 28 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "UV index"

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Staiger, Henning, and Peter Koepke. "UV Index forecasting on a global scale." Meteorologische Zeitschrift 14, no. 2 (May 10, 2005): 259–70. http://dx.doi.org/10.1127/0941-2948/2005/0029.

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MILLER, J. "UV radiation measurements and UV index." Journal of the European Academy of Dermatology and Venereology 11 (September 1998): S78. http://dx.doi.org/10.1016/s0926-9959(98)94851-6.

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Césarini, J. P. "Global solar UV index." Melanoma Research 5 (September 1995): 47–48. http://dx.doi.org/10.1097/00008390-199509001-00093.

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Repacholi, M. H. "Global Solar UV Index." Radiation Protection Dosimetry 91, no. 1 (September 2, 2000): 307–11. http://dx.doi.org/10.1093/oxfordjournals.rpd.a033226.

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Meunier, L. "Index UV et photoprotection." Annales de Dermatologie et de Vénéréologie 140, no. 1 (January 2013): 3–4. http://dx.doi.org/10.1016/j.annder.2012.10.582.

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Jendritzky, G., H. Staiger, and K. Bucher. "UV prognosis and UV index services in Europe." Melanoma Research 6, SUPPLEMENT 1 (September 1996): S14. http://dx.doi.org/10.1097/00008390-199609001-00037.

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Esteve, A. R., M. J. Marín, J. A. Martínez-Lozano, F. Tena, M. P. Utrillas, and J. Cañada. "UV Index on Tilted Surfaces." Photochemistry and Photobiology 82, no. 4 (2006): 1047. http://dx.doi.org/10.1562/2005-11-30-ra-743.

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Letić, Milorad. "Indicator of UV Index Intervals." Photochemistry and Photobiology 85, no. 3 (May 2009): 843–45. http://dx.doi.org/10.1111/j.1751-1097.2008.00489.x.

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Schmalwieser, Alois W., Julian Gröbner, Mario Blumthaler, Barbara Klotz, Hugo De Backer, David Bolsée, Rolf Werner, et al. "UV Index monitoring in Europe." Photochemical & Photobiological Sciences 16, no. 9 (2017): 1349–70. http://dx.doi.org/10.1039/c7pp00178a.

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Letic, Milorad. "Possible values of UV index in Serbia." Srpski arhiv za celokupno lekarstvo 136, no. 11-12 (2008): 640–43. http://dx.doi.org/10.2298/sarh0812640l.

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INTRODUCTION UV Index is an indicator of human exposure to solar ultraviolet (UV) rays. The numerical values of the UV Index range from 1-11 and above. There are three levels of protection against UV radiation; low values of the UV Index - protection is not required, medium values of the UV Index - protection is recommended and high values of the UV Index - protection is obligatory. The value of the UV Index primarily depends on the elevation of the sun and total ozone column. OBJECTIVE The aim of the study is to determine the intervals of possible maximal annual values of the UV Index in Serbia in order to determine the necessary level of protection in a simple manner. METHOD For maximal and minimal expected values of total column ozone and for maximal elevation of the sun, the value of the UV Index was determined for each month in the Northern and Southern parts of Serbia. These values were compared with the forecast of the UV Index. RESULTS Maximal clear sky values of the UV Index in Serbia for altitudes up to 500m in May, June, July and August can be 9 or even 10, and not less than 5 or 6. During November, December, January and February the UV Index can be 4 at most. During March, April, September and October the expected values of the UV Index are maximally 7 and not less than 3. The forecast of the UV Index is within these limits in 98% of comparisons. CONCLUSION The described method of determination of possible UV Index values showed a high agreement with forecasts. The obtained results can be used for general recommendations in the protection against UV radiation.
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Dissertations / Theses on the topic "UV index"

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Badosa, i. Franch Jordi. "UV index measurement and model agreement: uncertainties and limitations." Doctoral thesis, Universitat de Girona, 2005. http://hdl.handle.net/10803/7905.

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En les últimes dècades, l'increment dels nivells de radiació solar ultraviolada (UVR) que arriba a la Terra (principalment degut a la disminució d'ozó estratosfèric) juntament amb l'augment detectat en malalties relacionades amb l'exposició a la UVR, ha portat a un gran volum d'investigacions sobre la radiació solar en aquesta banda i els seus efectes en els humans.
L'índex ultraviolat (UVI), que ha estat adoptat internacionalment, va ser definit amb el propòsit d'informar al públic general sobre els riscos d'exposar el cos nu a la UVR i per tal d'enviar missatges preventius. L'UVI es va definir inicialment com el valor màxim diari. No obstant, el seu ús actual s'ha ampliat i té sentit referir-se a un valor instantani o a una evolució diària del valor d'UVI mesurat, modelitzat o predit. El valor concret d'UVI està afectat per la geometria Sol-Terra, els núvols, l'ozó, els aerosols, l'altitud i l'albedo superficial.
Les mesures d'UVI d'alta qualitat són essencials com a referència i per estudiar tendències a llarg termini; es necessiten també tècniques acurades de modelització per tal d'entendre els factors que afecten la UVR, per predir l'UVI i com a control de qualitat de les mesures. És d'esperar que les mesures més acurades d'UVI s'obtinguin amb espectroradiòmetres. No obstant, com que els costs d'aquests dispositius són elevats, és més habitual trobar dades d'UVI de radiòmetres eritemàtics (de fet, la majoria de les xarxes d'UVI estan equipades amb aquest tipus de sensors).
Els millors resultats en modelització s'obtenen amb models de transferència radiativa de dispersió múltiple quan es coneix bé la informació d'entrada. No obstant, habitualment no es coneix informació d'entrada, com per exemple les propietats òptiques dels aerosols, la qual cosa pot portar a importants incerteses en la modelització. Sovint, s'utilitzen models més simples per aplicacions com ara la predicció d'UVI o l'elaboració de mapes d'UVI, ja que aquests són més ràpids i requereixen menys paràmetres d'entrada.
Tenint en compte aquest marc de treball, l'objectiu general d'aquest estudi és analitzar l'acord al qual es pot arribar entre la mesura i la modelització d'UVI per condicions de cel sense núvols.
D'aquesta manera, en aquest estudi es presenten comparacions model-mesura per diferents tècniques de modelització, diferents opcions d'entrada i per mesures d'UVI tant de radiòmetres eritemàtics com d'espectroradiòmeters. Com a conclusió general, es pot afirmar que la comparació model-mesura és molt útil per detectar limitacions i estimar incerteses tant en les modelitzacions com en les mesures.
Pel que fa a la modelització, les principals limitacions que s'han trobat és la falta de coneixement de la informació d'aerosols considerada com a entrada dels models. També, s'han trobat importants diferències entre l'ozó mesurat des de satèl·lit i des de la superfície terrestre, la qual cosa pot portar a diferències importants en l'UVI modelitzat.
PTUV, una nova i simple parametrització pel càlcul ràpid d'UVI per condicions de cel serens, ha estat desenvolupada en base a càlculs de transferència radiativa. La parametrització mostra una bona execució tant respecte el model base com en comparació amb diverses mesures d'UVI. PTUV ha demostrat la seva utilitat per aplicacions particulars com ara l'estudi de l'evolució anual de l'UVI per un cert lloc (Girona) i la composició de mapes d'alta resolució de valors d'UVI típics per un territori concret (Catalunya).
En relació a les mesures, es constata que és molt important saber la resposta espectral dels radiòmetres eritemàtics per tal d'evitar grans incerteses a la mesura d'UVI. Aquest instruments, si estan ben caracteritzats, mostren una bona comparació amb els espectroradiòmetres d'alta qualitat en la mesura d'UVI. Les qüestions més importants respecte les mesures són la calibració i estabilitat a llarg termini. També, s'ha observat un efecte de temperatura en el PTFE, un material utilitzat en els difusors en alguns instruments, cosa que potencialment podria tenir implicacions importants en el camp experimental.
Finalment, i pel que fa a les comparacions model-mesura, el millor acord s'ha trobat quan es consideren mesures d'UVI d'espectroradiòmetres d'alta qualitat i s'usen models de transferència radiativa que consideren les millors dades disponibles pel que fa als paràmetres òptics d'ozó i aerosols i els seus canvis en el temps. D'aquesta manera, l'acord pot ser tan alt dins un 0.1º% en UVI, i típicament entre menys d'un 3%. Aquest acord es veu altament deteriorat si s'ignora la informació d'aerosols i depèn de manera important del valor d'albedo de dispersió simple dels aerosols. Altres dades d'entrada del model, com ara l'albedo superficial i els perfils d'ozó i temperatura introdueixen una incertesa menor en els resultats de modelització.
The increase in solar ultraviolet radiation (UVR) levels reaching the Earth surface during the last decades (mostly induced by the stratospheric ozone depletion), together with a detected increase in UVR-related diseases, has lead to a high volume of investigations about this band of the solar radiation and its effects on human beings.
The ultraviolet Index (UVI), which is currently internationally adopted, was defined in order to disseminate information to the public about the risks of exposing the naked body to UVR and to send preventive messages. UVI was initially defined as the maximum daily value. However, the current use of this index has been widened and nowadays it makes sense to refer to an instantaneous value or to the evolution of the measured, modelled, or predicted UVI during the day. The actual value of UVI is affected by the Sun-Earth geometry, clouds, ozone, aerosols, altitude and ground albedo.
High quality UVI measurements are essential as a reference and to study long-term trends; accurate modelling techniques are needed to understand the way factors affect UVR, to predict UVI, and as a quality control of the measurements. For the UVI measurement, best accuracy is expected with data from spectroradiometers. However, since the costs of these devices are expensive, data from erythemal radiometers are more commonly available (most UVI networks are equipped with this latter type of sensors). Best UVI modelling performance is found with multi-scattering radiative transfer models when the input information is well known. However, some relevant input information, such as the aerosol optical properties, is usually not available which can lead to large modelling uncertainties. More simple models are often used for applications such as UVI prediction or elaboration of UVI maps, as they are much faster and require less input parameters.
Considering this framework, the general objective of this work is to analyse the agreement that can be reached between modelled and measured UVI for cloudless conditions.
For this, model-measurement comparisons are presented for different modelling techniques, for several input options, and for UVI measured by both erythemal radiometers and spectroradiometers. As a general conclusion, it can be stated that the comparison of modelled vs. measured UVI is very useful to detect limitations and estimate uncertainties in both the modelling and measurements.
As far as modelling is concerned, the main limitations found are the lack of knowledge in the aerosol information considered as input. Also, important differences are found between the ozone column from satellite and from ground based measurements, which lead to important differences in the modelled UVI.
PTUV, a new simple parameterisation for fast UVI calculations for cloudless conditions, has been developed based on radiative transfer calculations. The parameterisation shows a good performance both with respect to the base model and to diverse UVI measurements. PTUV has demonstrated to be useful for particular applications such as to study the annual UVI variation at a particular site (Girona) and to build high resolution maps of typical UVI for a territory (Catalonia).
Regarding the measurements, it is found that the use of the actual spectral response of the erythemal radiometers is very important to avoid large uncertainties in the measured UVI. If well characterised, the erythemal radiometers compare reasonably well with high quality spectroradiometers when measuring UVI. Major issues with respect to the measurements are long term calibration accuracy and stability. Also, a temperature effect in PTFE, a material used as diffuser in some instruments, has been observed, which could have potentially important implications in the experimental field.
Finally, and concerning the model-measurement comparisons, the best agreement has been found when high quality spectroradiometric UVI measurements are considered and radiative transfer models are applied taking into account the best data available regarding aerosol and ozone optical parameters and their changes in time. In this case, the agreement can be as high as 0.1% in UVI, and typically less than 3%. This agreement deteriorates greatly if aerosols are ignored, and depends importantly on the aerosol single scattering albedo. Other data, such as ground albedo or the actual atmospheric temperature and ozone profiles, introduce lower uncertainty in the modelling results.
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Estupin, Jeral Garcia. "The Direct Influence of Aerosols on UV Irradiance and the Development of a Synthetic Current UV Index." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11602.

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The extinction of solar radiation by atmospheric aerosols influences the Ultraviolet (UV) flux at the surface, which in turn has implications on both human and environmental health. In this study we present measurements of aerosol optical depth ( and #964;a) in the UV at Boulder, Colorado and Atlanta, Georgia using direct measurements of solar UV radiation. The wavelength dependence of and #964;a and the single scattering albedo ( and #969;o) are determined from the measured values of and #964;a. Daily averages of and #964;a range between 0.09 and 0.52 at Boulder and between 0.23 and 2.09 for Atlanta between the wavelengths of 332 and 340 nm. The average ngstrm exponent ( and #945;) is 0.83 at Boulder and 1.43 in Atlanta. Results clearly show that aerosols have a significant effect on the UV Index. Day-to-day changes in the UV index during the one month measurement period in Atlanta range between 2-3 UV Index units at solar noon. It is estimated that when changes in and #964;a and and #969;o occur simultaneously, the UV Index can change up to 6 units from one day to the next at solar noon in the Atlanta area. The single scattering albedo ( and #969;o) was estimated to range between 0.8 and 0.99 for Atlanta. The results suggest an increasing trend in and #969;o with increases in and #964;a. In addition, a new synthetic current UV Index is developed which expands to nearly 10,000 cities the number of current UV Index reports that can be distributed to the public in the United States. Right now, current UV Index values are limited to specific UV measuring sites, constrained by the difficulties of maintaining accurate calibration within the network of UV instruments. The distribution of UV Index values to more cities will increase the publics awareness of the harmful effects of the sun. This new UV Index can be accessed through The Weather Channel website.
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Patistis, Andreas. "Contribution of each major wine phenolic family to the polyphenols index (IPT) evaluation." Master's thesis, ISA/UL, 2012. http://hdl.handle.net/10400.5/8615.

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Mestrado Vinifera EuroMaster - Instituto Superior de Agronomia
Wines are an important source of phenolic compounds. Red wines have a polyphenol content (especially tannins but also anthocyanins, flavonols, resveratrol and phenolic acids) considerably higher and different than whites. The phenolic content of wines is often described by two values that are called IPT and is representative of the total phenolic profile and anthocyanin index that is representative of the anthocyanins of a wine. The goal of this study is to try understanding how the different phenolic families contribute to the total polyphenolic index of the wine. For this reason representative compounds of some major phenolic families have been studied. The molecular absorbance was measured by a UV spectrophotometer at wavelength of 280 nm. From the result we calculated the polyphenolic index per milligram and the polyphenolic index of each compound used. This gave us an idea of the ‘’weight’’ that the different molecules have. Continuously combinations in pairs were made in order to try simulate better the wine environment. From the result obtained, we understood that total polyphenolic index per milligram for wine is a very complicated variable based both, in the ‘’weight’’ that the phenolic compounds have but also in the proportion that can be found in wine
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Slavica, Malinović Milićević. "Monitoring nejonizujućeg zračenja, zagađujućih materija i toplotnih indeksa u regionu Vojvodine." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2012. https://www.cris.uns.ac.rs/record.jsf?recordId=83192&source=NDLTD&language=en.

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Predmet istraživanja ove disertacije je monitoring i analiza ultraljubičastog zračenja, toplotnih indeksa i zagađujućih materija u vazduhu većih naselja na teritoriji Vojvodine. Cilj istraživanja je da se prostornom i vremenskom analizom posmatranih parametara dođe do što optimalnijih saznanja o stanju kvaliteta životne sredine na području Vojvodine kao i stvaranje jedinstvene baze podataka koja će služiti za buduća istraživanja. U radu je ispitan odnos između sunčevog globalnog i UV zračenja, izvedena i verifikovana empirijska jednačina za procenu dnevnih suma UV-B zračenja u osam naselja za period 1981-2008, analizirane koncentracije pet zagađujućih materija u sedam naselja za period 2001-2008. godina i analizirani toplotni indeksi u sedam naselja u periodu od 1992. do 2008. Analiza pokazuje da rekonstruisane vrednosti dnevnih suma UV-B zračenja i srednji godišnji toplotni indeksi u svim naseljima pokazuju tendenciju rasta i da dominantan uticaj na kvalitet vazduha u naseljima Vojvodine imaju čestice. Napravljena je jedinstvena baze podataka sa vrednostima koncentracija zagađivača vazduha, toplotnih indeksa, UV i globalnog zračenja.
This study analyzes UV radiation, heat indexes and air pollution in town in Vojvodina region. Objective of the thesis is to provide scientific facts about environmental quality in Vojvodina, as well as, to generate unique data base for the future research. The relationship between UV-B and global radiation has been studied and correlation equation for estimating UV-B from global radiation has been deduced. Equation was used for UV-B radiation calculation in eight towns in Vojvodina region during the period 1981-2008. This study also analyzes concentrations of five air pollutant in during the period 2001-2008, and heat index during the period 1992-2008. in seven towns in Vojvodina. The results from this study show growth UV-B radiation and heat index in all towns, and denote particulate maters as main air pollutants in Vojvodina towns.
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Totová, Ivana. "Analýza rozkladu roztoků huminových kyselin diafragmovým výbojem." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2008. http://www.nusl.cz/ntk/nusl-216393.

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Preliminary results of research focused on the applications of DC diaphragm discharge in water solutions containing humic substances are presented in this diploma thesis. Electrical discharges in water produce various reactive species such as radicals (•OH, •O, •H), ions and molecules (H2O2, O3). These species have high oxidation potential and thus they easily react with order species and molecules. Such reactions could lead, for example, to destruction of organic pollutants dissolved in water. This work studies this effect on humic matters that can be contained in water coming from floods. Diaphragm discharge investigated by this work was created in the reactor using konstant DC high voltage up to 2 kV that gave the total input power from 100 to 200 W. Breakdown and discharge ignition started in the pin-hole in the dielectric barrier separating two electrode spaces (anode and cathode space). Presented work investigates decomposition of humic substances by the electric discharge in the dependence of solution properties and discharge conditions. Parameters such as initial solution conductivity, electrolyte kind or input power have been investigated. Moreover, substantial effect of pH on humic acid decomposition has been observed. Refraktometry and absorption spectroscopy in UV-VIS region together with fluorescence spectroscopy has been used for the detection of changes in humic solutions.
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Lehmann, Maria [Verfasser], Olaf [Akademischer Betreuer] Gefeller, and Olaf [Gutachter] Gefeller. "Untersuchungen zur Validität von Sonnenschutzempfehlungen für Tage mit niedrigen UV-Index-Werten / Maria Lehmann ; Gutachter: Olaf Gefeller ; Betreuer: Olaf Gefeller." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2019. http://d-nb.info/1201551560/34.

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Kilic, Ilker. "Optical Characterization Of Silicon Based Hydrogenated Amorphous Thin Films By Uv-visible And Infrared Measurements." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607013/index.pdf.

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Various carbon content hydrogenated amorphous silicon carbide (a-Si1¡
xCx:H) and hydrogenated amorphous silicon (a-Si:H) thin films have been deposited on various substrates by using plasma enhanced chemical vapour deposition (PECVD) technique. Transmission spectra of these films have been determined within UV-Visible region and the obtained data were analysed to find related physical constants such as
refractive indices, thicknesses, etc. Fourier transform infrared (FT-IR) spectrometry technique has been used to determine transmission &
reflection type spectra of these films. Obtained data were analysed to determine bond structures of the films. E®
ects of relative concentration of ethylene (C2H4) gas on thin film bond structure and on optical constants have been questioned.
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Wang, M. (Meng). "Polymer integrated Young interferometers for label-free biosensing applications." Doctoral thesis, Oulun yliopisto, 2012. http://urn.fi/urn:isbn:9789514299643.

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Abstract Integrated optical (IO) sensor allowing sensitive, label-free, real-time and multi-parameter monitoring of bio-molecular interactions are conventionally fabricated with inorganic dielectrics inherited from CMOS manufacturing technology. Polymers as complement materials to inorganic dielectrics are becoming to have an increasing market share for IO circuits in optical communications networks owing to its good optical properties, versatile processibility and low cost. This work aims at developing disposable low-cost biosensors based mainly on polymeric materials, with a performance comparable to inorganic-dielectric based IO biosensors. This thesis describes the development of polymer IO biosensors based on the Young interferometer (YI) transducer platform for ambient noise compensation and a complete periodic intensity fringe pattern. Three different waveguide configurations were utilized, taking into consideration operational simplicity, fabrication simplicity and enhanced sensitivity. Among the developed polymer biosensors, an unconventional interferometer structure: a vertically placed dual-slab waveguide interferometer and an inverted rib waveguide configuration were employed. To enhance the sensitivity of the waveguides, deposition of Ta2O5 high index coating was performed on the rib waveguide configuration. Along with the development of polymer biosensors based on the inverted-rib waveguide configuration, a fabrication process was also developed featuring UV-imprinting and spin coating. The simple two-step fabrication process demonstrated using a polymer mold is potentially transferable to the roll-to-roll manufacture process. Calibration of the developed sensors was performed by homogeneous refractive index (RI) sensing with glucose de-ionized water solutions. By investigating an antibody – antigen binding interaction involving C-reactive protein and its conjugates, this thesis confirmed the applicability of the developed sensors to specific molecule detection. Moreover, to establish the influence of water molecular absorption on measurement stability, an evaluation was carried out on the polymeric waveguide. Finally, the thesis presented a comparison between the developed sensors, exploring their sensitivities, stabilities, limits of detection (LODs) and other aspects related to operation and fabrication. The results indicated that the Ta2O5-coated polymer waveguide sensor had a high sensing capability. In homogeneous RI sensing, the achieved detection limits were 9×10-7 RIU (refractive index unit), i.e., three times the noise level, and 270 fg/mm2 for surface mass density
Tiivistelmä Integroidulla optiikalla toteutetut anturit mahdollistavat biomolekulaarisen vuorovaikutuksen tutkimisen käyttäen herkkiä moniparametrisia ja merkkiaineettomia menetelmiä. Näiden bioantureiden valmistukseen käytetään tavallisesti CMOS-teknologian piiristä tuttuja epäorgaanisia puolijohteita ja eristemateriaaleja. Viime aikoina on kuitenkin polymeeristen materiaalien käyttöä integroidussa optiikassa tutkittu merkittävästi johtuen polymeerien hyvistä optisista ominaisuuksista, monipuolisesta työstettävyydestä ja edullisista kustannuksista. Tämän työn tarkoituksena on kehittää edullisia, kertakäyttöisiä, pääasiallisesti polymeerisistä materiaaleista valmistettuja bioantureita, jotka vastaavat suorituskyvyltään epäorgaanisista materiaaleista valmistettuja integroidun optiikan antureita. Tässä työssä kehitetyt polymeeriset integroidun optiikan bioanturit perustuvat Youngin interferometriin mahdollistaen ympäristökohinan kompensoinnin ja ne tuottavat pintavuorovaikutusten tutkimiseen jaksoittaisen interferenssikuvion. Työssä hyödynnettiin kolmea erilaista valokanavarakennetta huomioiden niiden käytön helppous, valmistuksen yksinkertaisuus ja mittausherkkyys. Yksi kehitetyistä polymeerisistä bioantureista koostui päällekkäisistä kerrostetuista polymeerikerroksista. Toisen tutkitun rakenteen toiminta puolestaan perustui käänteiseen harjannevalokanavaan. Mittausherkkyyttä parannettiin pinnoittamalla polymeerirakenne Ta2O5-pinnoitteella. Näin muodostui kerrostettu komposiittivalokanava, joka oli tässä työssä tutkittu kolmas sensorirakenne. Itse bioanturien lisäksi kehitettiin myös valmistusprosessi, jossa hyödynnettiin UV-painatusta ja nestefaasipinnoitusta. Tässä työssä havaittiin lisäksi, että kehitetty yksinkertainen valmistusmenetelmä on paitsi toimiva, myös mahdollisesti siirrettävissä rullalta rullalle valmistus- ja tuotantoteknologiaan. Kehitettyjen anturien kalibrointi suoritettiin homogeenisella taitekerroinmittauksella käyttäen liuoksia, jotka valmistettiin glukoosista ja deionisoidusta vedestä. Kehitettyjen anturien soveltuvuus spesifien molekyylien tunnistamista varten todennettiin tutkimalla vasta-aineiden ja antigeenien sitoutumisreaktioita ja vuorovaikutusta C-reaktiivisella proteiinilla ja sen konjugaateilla. Lisäksi työssä tutkittiin veden absorption vaikutusta mittauksen stabiilisuuteen. Tutkimuksessa suoritettiin vertailu kehitettyjen anturien ja niiden ominaisuuksien välillä kiinnittäen huomiota mittausherkkyyteen, stabiilisuuteen, määritys- ja toteamisrajoihin ja muihin anturien valmistukseen sekä käyttöön liittyviin keskeisiin piirteisiin. Tulokset osoittavat, että Ta2O5-pinnoitetun polymeerivalokanavan mittausherkkyys oli suurin vertailluista rakenteista. Homogeenisessä taitekerroinmittauksessa saavutettu määritys- ja toteamisraja oli 9×10-7 taitekerroinyksikköä (RIU). Pintamassatiheysmittauksessa saavuttu tulos oli 270 fg/mm2
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Izarra, Grégoire de. "Diagnostic des zones périphériques d’arcs électriques et des décharges hors-équilibre." Thesis, Orléans, 2013. http://www.theses.fr/2013ORLE2025/document.

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Jusqu’à récemment, la plupart des applications des arcs électriques mettaient en oeuvre les propriétés du coeur de la colonne, un effort particulier a donc été effectué pour développer des méthodes de caractérisation de ces zones dont la température moyenne est de l’ordre de 10000 K. Avec le développement de la plasma-chimie, le diagnostic des zones périphériques d’arcs et des décharges hors équilibre est devenu un enjeu primordial. Les méthodes de mesure classiques sont mal adaptées pour cette tâche ; le but du travail présenté dans cette thèse se résume donc au développement et à la validation de techniques de diagnostic adaptées à ces zones, dont la température cinétique n’excède pas 8000 K. Deux méthodes innovantes basées sur l’indice de réfraction, l’ombroscopie quantitative et la déflectométrie moirée, ont été étudiées en détails. Les résultats théoriques ainsi que le traitement des données obtenues ont été validés sur un jet de plasma laminaire d’argon, un modèle parfait de zone périphérique. Pour sonder les décharges hors équilibre, l’utilisation du spectre UV de OH a été aussi envisagée. À cette occasion, un programme de simulation de spectre moléculaire a été développé. L’étude des spectres synthétiques obtenus a permis de mettre au point des méthodes de mesure simples de la température rotationnelle et vibrationnelle pour une large gamme de résolution. Une des méthodes développées a été mise en œuvre sur une décharge à faible intensité de courant. On montre que les résultats obtenus par spectroscopie moléculaire sur le radical OH sont très proches de ceux obtenus à l’aide d’une simulation
Until recently, most of electrical arcs applications were dealing with the properties of the centre of the plasma column, a large number of works was then done to develop diagnostic techniques dedicated to those area where the mean temperature is about 10000 K. With the emergence of plasma chemistery, the diagnostic of arc’s peripheral areas and un-equilibrium discharges become a goal of prime importance. Classical diagnostic techniques are not adapted to those objects where the maximum temperature is around 8000 K; the principal aim of this work was to develop and check diagnostic techniques. Two inovating techniques based on refractive index, the quantitative shadowgraphy and the moiré deflectometry were studied extensively and checked on a laminar plasma jet, a perfect model of arc’s peripheral area. To probe unequilibrium discharge, the use of UV OH spectrum was considered. At this occasion, a spectrum simulation software was written. The study of synthetic spectra lead to the creation of simple measurement methods of rotationnal and vibrationnal OH temperature for a large range of resolution. Those methods was checked on a low power electric discharge. It can be shown that result from molecular spectroscopy are close to those obtained by simulation
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Zamzow, Jill P. "The physiological ecology of UV-absorbing compounds from the mucus of marine fishes." Thesis, University of Hawaii at Manoa, 2003. http://proquest.umi.com/pqdweb?index=0&did=764803761&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1233342067&clientId=23440.

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Books on the topic "UV index"

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Global Solar UV Index. International Commission on Non-Ionizing Radiation, 1995.

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Organization, World Health, ed. Global solar UV index: A practical guide. Geneva: World Health Organization, 2002.

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Optical Constants Of Materials For Uv To X-ray Wavelengths (Proceedings of S P I E). SPIE-International Society for Optical Engine, 2004.

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Book chapters on the topic "UV index"

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Malkov, Oleg, Aleksej Mironov, and Sergej Sichevskij. "Single-binary star separation by ultraviolet color index diagrams." In UV Astronomy 2011, 105–11. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2573-7_14.

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Jendritzky, G., H. Staiger, and K. Bucher. "UV Prognosis and UV Index Services in Europe." In Skin Cancer and UV Radiation, 37–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60771-4_5.

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O’Toole, Anne. "The Canadian Ozone Watch and UV Index." In Stratospheric Ozone Depletion/UV-B Radiation in the Biosphere, 283–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78884-0_39.

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O’Toole, Anne. "Uv Index: A Tool for Public Response." In Protecting the Ozone Layer, 59–66. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5585-8_9.

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Visser, A. J., M. Tosserams, M. W. Groen, G. Kalis, R. Kwant, G. W. H. Magendans, and J. Rozema. "The combined effects of CO2 concentration and enhanced UV-B radiation on faba bean. 3. Leaf optical properties, pigments, stomatal index and epidermal cell density." In UV-B and Biosphere, 208–22. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5718-6_19.

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Long, Craig S. "NOAA/EPA Surface Ultra-Violet Flux Index." In Stratospheric Ozone Depletion/UV-B Radiation in the Biosphere, 293–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78884-0_41.

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Zhang, Letian, Wenfa Xie, Yong Hou, Aiwu Li, Jie Zheng, Wei Zheng, and Yushu Zhang. "UV-Irradiation-Induced Refractive Index Increase of Ge-Doped Silica Films." In Materials Science Forum, 1837–40. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-960-1.1837.

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Busuttil, Roderick, Charles Galdies, Joseph Cacciottolo, and Charles Yousif. "Climatological Global Solar UV Index: Measurement and Health Issues in Malta." In Climate Change Management, 253–77. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36875-3_13.

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Poumellec, B. "Time Decay Modelling of UV-Induced Refractive Index Change of Silica Glasses for Optical Applications." In Ageing Studies and Lifetime Extension of Materials, 429–35. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1215-8_46.

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Morossi, C., and M. L. Malagnini. "An Effective Temperature Calibration of a UV-Visual Photometric Index for “Normal” Non-Supergiant Stars." In Calibration of Fundamental Stellar Quantities, 533–34. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5456-4_67.

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Conference papers on the topic "UV index"

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Long, Craig S., and Alvin J. Miller. "UV index forecastability issues." In Optical Science and Technology, SPIE's 48th Annual Meeting, edited by James R. Slusser, Jay R. Herman, and Wei Gao. SPIE, 2003. http://dx.doi.org/10.1117/12.503832.

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Mariano Gomes, Leonardo M., and Liliane Ventura. "Development of a low cost UV index datalogger and comparison between UV index sensors." In Ophthalmic Technologies XXVIII, edited by Fabrice Manns, Per G. Söderberg, and Arthur Ho. SPIE, 2018. http://dx.doi.org/10.1117/12.2289153.

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Podrascanin, Zorica, Milica Atlagic, Zoran Mijatovic, and Ana Firanj Sremac. "UV INDEX FORECASTING IN VOJVODINA REGION." In RAD Conference. RAD Association, 2019. http://dx.doi.org/10.21175/radproc.2018.40.

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Leccese, F., G. Salvadori, D. Lista, and C. Burattini. "Outdoor Workers Exposed to UV Radiation: Comparison of UV Index Forecasting Methods." In 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). IEEE, 2018. http://dx.doi.org/10.1109/eeeic.2018.8494621.

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Burnett, John. "High-Index Materials for UV Lithography Optics." In Optical Fabrication and Testing. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/oft.2006.oftuc1.

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Fioletov, Vitali E., James B. Kerr, L. J. B. McArthur, David I. Wardle, Tom W. Mathews, Michael G. Kimlin, Richard S. Meltzer, Nickolay A. Krotkov, and Jay R. Herman. "Estimating UV index climatology over North America." In Optical Science and Technology, SPIE's 48th Annual Meeting, edited by James R. Slusser, Jay R. Herman, and Wei Gao. SPIE, 2003. http://dx.doi.org/10.1117/12.505921.

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Paulescu, Eugenia, Vlad Iman, Ciprian Dughir, Nicoleta Stefu, and Marius Paulescu. "A simplified but accurate UV index model." In TIM17 PHYSICS CONFERENCE. Author(s), 2017. http://dx.doi.org/10.1063/1.5017449.

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Schmalwieser, Alois W., Guenther Schauberger, Michal Janouch, Manuel Nunez, Tapani Koskela, Daniel Berger, Gabriel Karamanian, Pavel Prosek, and Kamil Laska. "Worldwide forecast of the biologically effective UV radiation: UV index and daily dose." In International Symposium on Optical Science and Technology, edited by James R. Slusser, Jay R. Herman, and Wei Gao. SPIE, 2002. http://dx.doi.org/10.1117/12.452926.

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Bruce, Robert C., Paul D. Sunal, Clara Rivero-Baleine, and Theresa S. Mayer. "High-performance surface-engineered gradient refractive index (GRIN) coatings." In Advanced Optics for Imaging Applications: UV through LWIR IV, edited by Peter L. Marasco, Jasbinder S. Sanghera, and Jay N. Vizgaitis. SPIE, 2019. http://dx.doi.org/10.1117/12.2518373.

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Hingant, Thomas, Pol Briantais, Raphaël Proux, Mathieu Rozé, Petr Němec, Antoine Bréhaut, Laurent Calvez, Xiang-Hua Zhang, Yann M. Guimond, and John W. Franks. "Simple optical characterization of new high index chalcogenide glass." In Advanced Optics for Imaging Applications: UV through LWIR VI, edited by Peter L. Marasco, Jasbinder S. Sanghera, and Jay N. Vizgaitis. SPIE, 2021. http://dx.doi.org/10.1117/12.2586076.

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Reports on the topic "UV index"

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Bojilova, Rumiana, Plamen Mukhtarov, and Nikolay Miloshev. Climatology of the Index of the Biologically Active Ultraviolet Radiation for Sofia. An Empirical Forecast Model for Predicting the UV-Index. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, April 2020. http://dx.doi.org/10.7546/crabs.2020.04.12.

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