نتایج جستجو برای: light intense

تعداد نتایج: 441159  

Journal: :Scientific reports 2016
Xianghong Ge Yanchao Mao Xiansheng Liu Yongguang Cheng Baohe Yuan Mingju Chao Erjun Liang

In this paper, we present a novel material with the formula of ZrScMo2VO12 for the first time. It was demonstrated that this material exhibits not only excellent negative thermal expansion (NTE) property over a wide temperature range (at least from 150 to 823 K), but also very intense photoluminescence covering the entire visible region. Structure analysis shows that ZrScMo2VO12 has an orthorho...

Journal: :Investigative ophthalmology & visual science 2000
D T Organisciak R M Darrow L Barsalou R K Kutty B Wiggert

PURPOSE To determine the relative susceptibility of rats to retinal light damage at different times of the day or night. METHODS Rats maintained in a dim cyclic light or dark environment were exposed to a single dose of intense green light beginning at various times. Normally, light exposures were for 8 or 3 hours, respectively, although longer and shorter periods were also used. Some animals...

2016
Zain Husain Tina S Alster

The role of light-based technologies in dermatology has expanded dramatically in recent years. Lasers and intense pulsed light have been used to safely and effectively treat a diverse array of cutaneous conditions, including vascular and pigmented lesions, tattoos, scars, and undesired hair, while also providing extensive therapeutic options for cosmetic rejuvenation and other dermatologic cond...

آل بویه, محمود, اسماعیل‌زاده, عبدالرضا, اکبری, مینو, بلاغی, سید اسماعیل, حکیمیان, فاطمه, رستگار, حسین, فاخری, فرزانه, موسوی مطلق, سید شهاب,

Background and Objective: Photodynamic therapy is a treatment that uses photosensitizer and intense visible light. When photosensitizers get exposed to a specific light wavelength (preferentially in the red region), they produce reactive oxygen species that are toxic to cells. Recently, attention has been focused on porphyrins and their analogs as photosensitizers. Zn (II) tetrapyridinoporphyra...

Journal: :Investigative ophthalmology & visual science 1992
D T Organisciak R M Darrow Y I Jiang G E Marak J C Blanks

The protective effect of dimethylthiourea (DMTU) against retinal light damage was determined in albino rats reared in darkness or in weak cyclic light. Rats maintained under these conditions were treated with DMTU at different concentrations and dosing schedules and then exposed for various times to intense visible light, either intermittently (1 hr light and 2 hr dark) or continuously. The ext...

2000
Ravindra Kumar

The propensity of molecules to spatially align along the polarization vector of intense, pulsed light fields is related to readily-accessible parameters (molecular polarizabilities, moment of inertia, peak intensity of the light and its pulse duration). Predictions can now be made of which molecules can be spatially aligned, and under what circumstances, upon irradiation by intense light. Accou...

Journal: :International Journal of Infrared and Millimeter Waves 1984

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