نتایج جستجو برای: irradiation power

تعداد نتایج: 548215  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

Journal: :iranian chemical communication 2014
seyed mohammad vahdat abbas mohammadzadeh esmaiel derafshian somaieh akhoondi

in the present study, aminoazines were prepared from the reaction of amidrazone hydroiodide with various aromatic aldehydes in the presence of a solid base under microwave irradiation with power level of 850 w for 2-7 min in high yields. the amidrazone hydroiodide can also be prepared by the reaction of s-methyl isothiobenzamide hydroiodide and hydrazine in methanol under nitrogen gas. all synt...

Yusifov EYu AB Shabanova AM Hajiyev LF Ismailova

Electromagnetic waves affect living organisms and it is of great interest for wide interaction of new sources with a diversity of frequencies and powers to life of people. In the last few years, many authors have proposed that the biological effect of electromagnetic fields in both the high-frequency and low-frequency ranges are connected with oxidative processes in tissues. Studying the change...

Yusifov EYu AB Shabanova AM Hajiyev LF Ismailova

Electromagnetic waves affect living organisms and it is of great interest for wide interaction of new sources with a diversity of frequencies and powers to life of people. In the last few years, many authors have proposed that the biological effect of electromagnetic fields in both the high-frequency and low-frequency ranges are connected with oxidative processes in tissues. Studying the change...

Journal: :Applied Physics Express 2021

Abstract Optical wireless power transmission systems incorporating photovoltaic cells and lasers are expected to serve as next-generation energy supply devices for automobiles autonomous underwater vehicles. High photoelectric conversion efficiencies over 40% of converters under high-power irradiation 10 W cm −2 required the practical application in these applications. We achieved a high effici...

In this paper, the annual and economic performance of an integrated solar combined cycle (ISCC) with indirect energy storage tanks is investigated. The study includes four scenarios, in which the combined cycle performance was studied exclusively in the first scenario. In the second scenario, the integrated solar combined cycle (ISCC) was examined, and the use of supplementary firing instead of...

Journal: :journal of dentistry, tehran university of medical sciences 0
zahra bahrololoomi associate professor, department of pediatric dentistry, faculty of dentistry, member of social determinants of oral health research center, shahid sadoughi university of medical sciences, yazd, iran. malihe lotfian department of pediatric dentistry, faculty of dentistry, shahid sadoughi university of medical sciences, yazd, iran.

laser irradiation has been suggested as an adjunct to traditional caries prevention methods. but little is known about the cariostatic effect of diode laser and most studies available are on permanent teeth.the purpose of the present study was to investigate the effect of diode laser irradiation combined with topical fluoride on enamel surface microhardness.forty-five primary teeth were used in...

Journal: :Journal of oral science 2011
Yoko Sasaki Shuang Wang Yorimasa Ogata

Bone sialoprotein (BSP), an early marker of osteoblast differentiation, has been implicated in the nucleation of hydroxyapatite during de novo bone formation. Low-power laser irradiation has a stimulating effect on cells and tissues. Although the carbon dioxide (CO(2)) laser is a hard surgical laser, we have attempted to use it at low energy density to achieve biological alterations. To investi...

2016
Aleksandar Mitić Jelena Popović Slavoljub Živković Vladimir Mitić Marija Nikolić Stefan Dačić

Laser irradiation during root canal treatment is efficient but in order to prevent irreversible thermal damage to dentine, cementum and other periapical structures continuous water cooling is required. The aim of this study was to ultrastructurally analyze the surface of intracanal dentine and cementum at the root apex after Er:YAG laser irradiation with and without sterile saline solution irri...

Journal: :Lasers in surgery and medicine 2008
Amadé Bregy Serge Bogni Vianney J P Bernau Istvan Vajtai Felix Vollbach Alke Petri-Fink Mihai Constantinescu Heinrich Hofmann Martin Frenz Michael Reinert

BACKGROUND AND OBJECTIVES In this in vitro feasibility study we analyzed tissue fusion using bovine serum albumin (BSA) and Indocyanine green (ICG) doped polycaprolactone (PCL) scaffolds in combination with a diode laser as energy source while focusing on the influence of irradiation power and albumin concentration on the resulting tensile strength and induced tissue damage. MATERIALS AND MET...

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