نتایج جستجو برای: output intensity of led light cure

تعداد نتایج: 21223569  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده شیمی 1391

dendrimer synthesis strategies now provide virtual control of macromolecular nanostructures as a function of size and surface/interior functionality. these strategies involve the covalent assembly of hierarchical components reactive monomers , branch cells or dendron’s around atomic or molecular cores according to divergent/convergent dendrite branching principles.combinon of two or more dendri...

Journal: :Han-gukbangjaehakoenonmunjip 2023

After the revision of “Fire Safety Standards for Automatic Fire Alarm System and Visual Equipment (NFSC 203)” in 2015 made it mandatory to install smoke detectors apartments medical facilities, their number has increased significantly. The detector used experiment was a photoelectric spot-type analog detector. conducted by configuring real-time monitoring system. In addition, sensitivity charac...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mohammad javad chaichi zahra va'ezi morteza hosseini saman hosseinkhani mojtaba shamsipur

the reaction of hydrogen peroxide and  pheny -9-acridinecarboxylate in the presence of rhodamin b as a fluorophore leads to the emission of either bright blue light  or bright red light, depending on the structure of fluorescer and reaction conditions. the light emitter responsible for the chemi luminescence (cl) reaction is acridone and that the blue light produced with out the fluorescers is ...

Journal: :journal of agricultural science and technology 2015
b. hosseinzadeh samani m. h. khoshtaghaza s. minaee s. abbasi

this study aimed to examine the effectiveness of combined microwave-ultrasonic pasteurization system on escherichia coli and vitamin c content in sour cherry juice (scj). based on the findings, microwave output power, ultrasound power, and ultrasonic exposure time as well as the microwave-induced temperature were the most effective factors in reducing e. coli and vitamin c content. in addition,...

Journal: :Microelectronics Reliability 2016
Young-Pil Kim Young-Shin Kim Seok-Cheol Ko

a r t i c l e i n f o Keywords: COB package Silicon sub-mount LED package Thermal resistance In this paper, the cost of a light emitting diode (LED) package is lowered by using a silicon substrate as the base attached to the chip, in contrast to the conventional chip-on-board (COB) package. In addition we proposed an LED package with a new structure to promote reliability and lifespan by maximi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده برق و کامپیوتر 1390

one of the most important goals for increasing recognition and treatment revenue is transmitting vital data to medical care team, more quickly. nowadays, use of new technologies for transmitting data will deploy more and more daily. in this article, for transmitting electrocardiogram, first we code the signal into a suite of codes, then we will use bluetooth technology to transmit data from off...

Journal: :Operative dentistry 2015
Y Shimizu A Tsujimoto T Furuichi T Suzuki K Tsubota M Miyazaki J A Platt

OBJECTIVE We examined the influence of light intensity on surface free energy characteristics and dentin bond strength of dual-cure direct core build-up resin systems. METHODS Two commercially available dual-cure direct core build-up resin systems, Clearfil DC Core Automix with Clearfil Bond SE One and UniFil Core EM with Self-Etching Bond, were studied. Bovine mandibular incisors were mounte...

2012
Lucas J. Carr Matthew T. Mahar

Purpose. To examine the accuracy of intensity and inclinometer output of three physical activity monitors during various sedentary and light-intensity activities. Methods. Thirty-six participants wore three physical activity monitors (ActiGraph GT1M, ActiGraph GT3X+, and StepWatch) while completing sedentary (lying, sitting watching television, sitting using computer, and standing still) light ...

Elham Tabatabee Ghomshe, Ladan Ranjbar Omrani, Nasim Chiniforush, Parisa Golkar Taft, Shiva Jafarnia,

Background and Aim: Bleaching can improve the color of restorative materials and resolve problems related to discoloration or color mismatch. This study evaluated the effect of in-office bleaching method in conjunction with two different laser wavelengths on color change of two types of glass-ionomer restorative materials (light-cure and self-cure). Materials and Methods: In this experimenta...

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