Due to tedious and time-consuming work put into the conventional mold/die microprocessing (about 37% of total time entire production). Therefore, improve or enhance quality mold/dies at final step with a less number trained skilled operators decrease processing cut overall cost dramatically, AISI-O1 cold steel was micro-processed by Pulsed Nd: YAG laser. The influence laser parameters on evolut...

abstract today, the laser is used in a wide range of dental procedures. some of the advantages of some lasers in treatment of oral soft tissue lesions are: elimination of need for local anesthesia, minimal bleeding, fast healing, absence of postoperative complications and reduction of recurrence rate. for these reasons is was used for treatment of oral fibroma. to our knowledge this is the firs...

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...

Wound healing is a complex and long lasting biochemical and biologic process. This study was conducted to investigate the influence of 1046-nm Pulsed High Intensity Nd: YAG Laser in the treatment of 3 rd degree experimental burn wound on rats. Twenty four clinical healthy male Sprague-Dawley (SD) rats with induced two full thickness burn wound measuring 6 cm 2 on the dorsal aspect, one wound ac...

The emission characteristics of debris from laser-produced tin plasma were investigated for an extreme ultraviolet lithography (EUV) light source. The ions and droplets emitted from tin plasma produced by a CO2 laser or an Nd: YAG laser were detected with Faraday cups and quartz crystal micro-balance (QCM) detectors, respectively. A higher ion kinetic energy and a lower droplet emission were ob...

Background and aim: Laser is one of the most recent techniques which has widespread use in the treatment of many skin diseases. This technique has been successfully used to remove unwanted hairs in hirsutism. The aim of this study was to evaluate and compare the efficacy and safety of long-pulsed 755 nm alexandrite and long-pulsed 1064 nm Nd: YAG lasers individually and in combination for perma...

In the present work, Laser Induced Breakdown Spectroscopy (LIBS) has been utilized to investigate two forms of aluminum samples, namely Al in form nanoparticles (NPs) and a bulk (pellet). The target was irradiated by pulsed Nd-YAG laser with wavelength 1064 nm produce plasma. plasm spectrum is analyzed range between 250 700 nm. Some plasma parameters were calculated, including electron temperat...

objective: the aim of this study was to evaluate and compare the effect of dental surface treatment with er:yag , nd:yag ,co2 lasers and sodium ascorbate to recently laser bleached enamel by scanning electron microscope (sem). methods: 15caries-free extracted human third molars were selected for this study. the samples were bleached by heydent jw power activated by diode laser 810 nm. after 7 d...