This report is a discussion, evaluation and comparison of potential sources of electrical power for small mobile systems. Power sources are an inevitable challenge in the design of portable and small mobile systems, especially robotic systems. Power systems cannot be an afterthought and, if left to final design stages, can result in severe and adverse effects on the system, such as excess weigh...

introduction: oral mucositis is considered a severe complication in cancer patients receiving radiotherapy or chemotherapy for head and neck cancer. the aim of this review study was to assess the effect of low level laser therapy for prevention and management of oral mucositis in cancer patients. methods: the electronic databases searched included pubmed, isi web of knowledge and google scholar...

Introduction: Mucogingival surgery is performed to correct defects in the morphology, position, and/or amount of gingiva. Such post-operative complications as bleeding, swelling, and pain have often been documented after mucogingival surgery and are associated with discomfort after surgery. The low-intensity laser has been used to promote analgesia. Low level laser therapy (LLLT) not only accel...

endourologic pyeloplasty is being a substitute of open pyeloplasty in management of ureteropelvic junction obstruction. this procedure can be done in different manners like balloon dilation, cold knife and electrosurgical endoureterotomy, accucise and lasers.a 47 year old woman referred with history of previous open pyeloplasty. hydronephrosis of right kidney with unremarkable t ½ was found in ...

7 Emerging economies with rapidly growing population and energy demand, own some of the most 8 expensive power plants in the world. We hypothesized that corruption has a relationship with the 9 capital cost of power plants in developing countries such as Bangladesh. For this study, we analyzed 10 the capital cost of 61 operational and planned power plants in Bangladesh. Initial comparison study...

This study aimed to evaluate Laser-cutting process of Mild Steel St37 sheets with two different thicknesses. In order to evaluate the quality of cutting edge and the depth of the area affected by the heat, several tests were conducted to determine the effect of parameters such as Laser power, Laser beam movement speed and pressure of axillary gas on the quality of cutting edge and the depth of ...

So far, researchers have developed simplified models to control the so called Acurex field, which is a solar power plant situated in Tabernas in Spain, used mainly for research purposes. Most of these simplified models for control have been used in simulation. Some have also been used in control experiments. Usually an advanced model of the plant was used to identify and verify the simplified m...

introduction: low back pain is one of the most common musculoskeletal disorders,which is prevalent among the public population. depending on the severity of the patients’ pain, different treatments are selected for them. few studies have addressed, so far, the therapeutic effects of laser in such pains and different results have been published in this regard. the aim of this study is to investi...

introduction: this study compared the efficacy of light-activated low-power laser, 2% chlorhexidine (chx) and 2.5% naocl in eliminating enterococcus faecalis ( e. faecalis) from the root canal system. methods and materials: the root canals of 60 maxillary central incisors were contaminated with e. faecalis and then the bacteria were incubated for 24 h. all the root canals were instrumented in a...

introduction: this study aimed to assess the scanning electron microscope (sem) analysis of tooth surface irradiated by erbium:yttrium–aluminum–garnet (er:yag) laser with various parameters. methods: number of 25 extracted human third molars free of caries were used in this study. the teeth were put into 5 groups for laser irradiation as follows: group 1 (power: 0.5 w, energy: 50 mj); group 2 (...