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Showing 1 to 20 of 158 for “"Ultraviolet Light"”.

  1. Packaging designs for ultraviolet light emitting diodes

    Habtemichael, Yishak TekleabGeorgia Institute of Technology2012

    … (AlGaN) / Gallium Nitride (GaN) based deep ultraviolet (DUV) light emitting didoes (LEDs) with emission wavelengths between 200-280 nm enable key emerging technologies such as water/air purification and sterilization, covert communications and portable bio-agent detection/identification …

    gatech Repository record

  2. Kinetic Modeling of Microbial Inactivation by Ultraviolet Light

    Severin, Blaine FrankUniversity of Illinois at Urbana-Champaign2015

    Ultraviolet (UV) light reactors are currently being designed for the disinfection of water and wastewater. However, little information is available relating the effects of mixing, light intensity, reaction time, and water quality to UV disinfection efficiency. This study was designed to develop …

    uiuc Repository record

  3. Ionization efficiency of ultraviolet light in caesium vapor

    Little, Edward MiltonUniversity of Illinois at Urbana-Champaign1926

    uiuc Repository record

  4. AN ANALYSIS OF THE ULTRAVIOLET LIGHT REFLECTED FROM VENUS

    LESTRADE, JOHN PATRICKRice University1978

    rice Repository record

  5. Measurement of Thermal Impedance of Deep Ultraviolet Light Emitting Diodes

    Asif, Fatima

    <p>Deep ultraviolet (DUV) light emitting diodes (LEDs) based on group III-Nitrides have numerous potential applications in water and air purification, food sterilization, ultraviolet curing, chemical and biological sensors, and medical instrumentation. However, DUV LEDs, with peak emission …

    south-carolina Repository record

  6. Inactivation mechanisms of adenovirus from exposure to polychromatic ultraviolet light irradiation

    Vazquez Bravo, BernardoUniversity of Illinois at Urbana-Champaign2018

    Ultraviolet (UV) light is a drinking water treatment technology that has gained popularity as an alternative to control chlorine-resistant pathogens and comply with regulations on disinfection byproduct formation. Human adenovirus (HAdV) is found in water sources around the world and can cause …

    uiuc Repository record

  7. Assessment of ultraviolet light disinfection efficiency of advanced wastewater treatment plant effluent

    Truong, Man N

    Pilot-scale operation of a 3-bank UV disinfection system for filter effluent from the Clark County Advanced Wastewater Treatment Plant has shown {dollar}>{dollar}4-log removal of seeded MS-2 coliphage at UV dosages of 80-100 milliwatt-seconds per square centimeter (mW-s/cm{dollar}\sp2{dollar}), and …

    unlv Repository record

  8. Influence of Ultraviolet Light, Righting Response, and Community Structure in Aquatic Turtles

    Anders, Ben

    … essential to the uptake of dietary calcium, UV-B light is considered important for growth in these animals. I studied the effects of UV-B light bulbs on growth in slider turtles (Trachemys scripta: N = 243) from hatching to eight months of age. Growth was defined as the difference between initial …

    mo-state Repository record

  9. Design, fabrication and characterisation of ultraviolet light-emitting diodes for biomedical applications

    Milner, PeterUniversity College Cork2025

    The efficiencies of ultraviolet (UV) light-emitting diodes (LEDs) significantly lag behind those of their blue counterparts, owing to a variety of electrical and optical challenges. There is a marked dip in performance in the wavelength range ∼320 − 340 nm, due to the difficulty in realising a high …

    cork Repository record

  10. A STUDY OF BACTERIAL ADAPTATION TO ULTRAVIOLET LIGHT IN ULTRAPURE WATER SYSTEMS

    Liu, YiThe University of Arizona.2009

    … allfactors that affect the ability of UV light to deactivate and kill microorganisms. Morespecifically, bacterial growth conditions and the UPW stimulation time were investigated.The two major UV lights sources, UV254 and UV 185, were compared. The resultingdeath rates of bacteria living …

    arizona-thes Repository record

  11. Near-Ultraviolet Light Effects on Chinese Hamster Cells Pulse-Labeled With Bromodeoxyuridine

    Hagan, Michael PhilipUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-14T05:40:44Z (GMT). No. of bitstreams: 1 7913477.pdf: 4266639 bytes, checksum: 629e07ae7e2a72e0620cb4b5dd961fe1 (MD5) Previous issue date: 1978

    uiuc Repository record

  12. Detection of energetic neutral flux emanating from extreme ultraviolet light lithography sources

    Sporre, John R.University of Illinois at Urbana-Champaign2010

    … the next generation of lithography is extreme ultraviolet light lithography (EUVL) technology. This technique improves upon currently used excimer laser lithography by reducing the light source wavelength from 195nm down to a 13.5nm ± 0.2 nm. This shift allows for an increase in resolution …

    uiuc Repository record

  13. Effects of electrostatic fields, ultrasonic vibrations and ultraviolet light on spinach seed

    Roane, Thomas MerlynVirginia Polytechnic Institute1964

    … in water for one minute for the wet check. Ultraviolet light at 3654 A and 3129 A was used on other treatments. Four reps consisting of 100 seeds each were germinated in a refrigerator at about 45°F. After 9 days and 13 days the germination of those treated ultrasonically, the wet check, and …

    vt Repository record

  14. Efficacy of Ultraviolet Light and Antimicrobials to Reduce Listeria monocytogenes in Chill Brines

    Parikh, Priti P.Virginia Tech2007

    … of this study was to determine the efficacy of ultraviolet light (UV) in combination with antimicrobials to reduce L. monocytogenes in fresh and used chill brines. Three different antimicrobials were used in combination with UV; citric acid (CA, 0.2 and 0.5%), dimethyl dicarbonate (DMDC, 250 and …

    vt Repository record

  15. The effects of ultraviolet light on spore germination in the cellular slime mold dictyostelium discoideum.

    Demsar, Irene Helen.University of Windsor1981

    Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1981 .D448. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.Sc.)--University of Windsor (Canada), 1981.

    windsor Repository record

  16. Ultraviolet Light and Fluorescence in Medicine: Their Application to the Problem of Microscopic Localization of Tetracycline

    Moylan, Thomas J.Creighton University1961

    … until the impact of World War II suppressed its light. | The recent discovery is that tetracycline appears to have a preferential localization at tumor sites. Tetracycline's fluorescence upon irradiation with ultraviolet light increases the usefulness of this discovery. But tetracycline's …

    creighton Repository record

  17. Diagnosis of the flux emanating from the intermediate focus of an extreme ultraviolet light lithography source

    Sporre, JohnUniversity of Illinois at Urbana-Champaign2013

    The implementation of extreme ultraviolet (EUV) light lithography as the solution for next generation lithography needs, stands at a critical point. Having already missed the last several projected insertion nodes, it is necessary to rapidly solve the current issues with the light source that …

    uiuc Repository record

  18. Behavioural and physiological responses of myzus persicae to ultraviolet light for the development of new pest control technologies

    Fennell, Joseph Thomas, Paul, Nigel, Wilby, AndyLancaster University2017

    … of the responses of pest insects to light for the purpose of improved agricultural pest control. Through access to experimental polyethylene horticultural films with novel transmission properties, I exploited new opportunities for exploring separate short- and long-wavelength …

    lancaster Repository record

  19. Debris Reduction by Means of a Secondary Plasma System With a Dense Plasma Focus Extreme Ultraviolet Light Source

    Jaworski, Michael A.2017

    Made available in DSpace on 2017-07-06T18:48:48Z (GMT). No. of bitstreams: 3 Jaworski_Michael_A_MS.pdf: 98851852 bytes, checksum: d50b738ba6b235ed4057de5b2f662002 (MD5) Jaworski_Michael_A_MS_ABS.pdf: 586194 bytes, checksum: 6becbeae6ab7d231db96472e528ee4a2 (MD5) license.txt: 4813 bytes, checksum: …

    uiuc Repository record

  20. The role of damaged DNA recognition proteins in the genotoxicities of ultraviolet light and the anticancer drug cisplatin

    Treiber, Daniel Kelly, 1965-Massachusetts Institute of Technology1994

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Division of Toxicology, 1994.

    mit Repository record

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