نتایج جستجو برای: nd ktp
تعداد نتایج: 32456 فیلتر نتایج به سال:
Background and Aim: Nandrolone decanoate is known as one of the most destructive environmental factors in the reproductive system in men and women. In this study, we assessed the protective effect of gonadotropins (hMG) on histological changes of rat ovarian structure. Materials and Methods: 50 female rats were divided into 5 groups, including control, nandrolone decanoate (ND), hMG, ND + hMG, ...
A diode-pumped actively Q-switched mixed Nd:Y(0.3)Gd(0.7)VO(4) laser with an intracavity KTP crystal is developed to produce cascade SRS emission up to the fourth order. With an incident pump power of 14 W and a repetition rate of 50 kHz, the average output powers at the first, second, third and fourth Stokes modes are approximately 0.05 W, 0.61 W, 0.25 W, and 0.11 W, respectively. The maximum ...
Neutron total (Bragg plus diffuse) scattering data have been analysed by means of bond valence constrained reverse Monte Carlo modelling, using RMCProfile software, in order to simultaneously probe the natures of the short- and long-range structural correlations in potassium titanyl phosphate, KTiOPO(4) (KTP). The diffraction data were collected at room temperature, 300, 500, 700 and 900 °C, an...
Light and heat increase the reactivity of hydrogen peroxide. There is no evidence that light activation (power bleaching with high-intensity light) results in a more effective bleaching with a longer lasting effect with high concentrated hydrogen peroxide bleaching gels. Laser light differs from conventional light as it requires a laser-target interaction. The interaction takes place in the fir...
Periodically-poled ferroelectric crystals show unprecedented efficiency and properties otherwise impossible to reach. Unfortunately, the sample thickness obtainable today limits their use to low and moderate power application. With the aim of increasing the size of periodically domain-structured crystals with a controlled and regular grating period, we proposed an epitaxial growth process using...
ABSTRACT Background: Correction of the uremic state by a functioning allograft often restores fertility in women of reproductive age. The rate of fertility significantly differs between industrial countries, developing and middle east countries. On the other hand the results of pregnancy in Kidney Transplantation (KTP) patients are significantly better than hemodialysis patients, and pregnancy...
introduction: recent use of lasers for porcelain surface treatment for adhesion of brackets to restorations has not only showed some promising results, but is also accompanied with less undesirable effects among other advantages. the purpose of this study is the comparative electron microscope evaluation of feldspathic porcelain surfaces under irradiation by neodymium-doped yttrium aluminium ga...
introduction: port wine stains (pws) are congenital vascular malformations. pulsed dye laser (pdl) is the treatment of choice till now, although many lesions do not respond completely. one of possible options is long pulsed alexandrite laser. some literatures confirmed its efficacy. the aim of the present study is to determine the efficacy of this laser as an option in treating refractory pws i...
پوششهای الکترولس ni-p به دلیل دارا بودن خواص خوب مهندسی از جمله مقاومت به سایش و خوردگی، در صنایع مختلفی مانند نفت و پتروشیمی، خودروسازی و ...، کاربرد فراوانی یافته اند. تقویت این پوشش ها با استفاده از ذرات سخت و یا روانکارهای جامد باعث بهبود خواص آن ها می شود. در میان این ذرات، نانو ذرات الماس (nd) به دلیل داشتن بیشترین سختی، پایداری شیمیایی بالا و هدایت حرارتی خوب، بسیار مورد توجه می باشند. ...
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