We fabricate and measure a microfluidic variable optical attenuator, which consists of an optical waveguide integrated with a microfluidic channel. An opening is introduced in the upper cladding of the waveguide in order to facilitate the alignment and bonding of the microfluidic channel. By using fluids with different refractive indices, the optical output power is gradually attenuated. We obt...

Particle filters are computational methods opening up for systematic inference in nonlinear/non-Gaussian state space models. The particle filters constitute the most popular sequential Monte Carlo (SMC) methods. This is a relatively recent development and the aim here is to provide a brief exposition of these SMC methods and how they are key enabling algorithms in solving nonlinear system ident...

Background and Aim: Temporomandibular disorder (TMD) is a multifactorial problem caused by many reasons. There is still controversy about the effect of different types of occlusal disorder on TMD. This study was designed to determine the effects of centric and assisted and unassisted non-working interferences on TMD. Materials and Methods: In this cross-sectional study, 100 dental students, in...

BACKGROUND This study aimed to investigate, by means of finite element analysis, the effect of a drill hole at the end of a horizontal osteotomy to reduce the risk of lateral cortex fracture while performing an opening wedge high tibial osteotomy (OWHTO). The question was whether drilling a hole relieves stress and increases the maximum correction angle without fracture of the lateral cortex de...

introduction: this study was conducted to investigate the side effects of closed reduction method as a treatment modality of unilateral condylar fractures of the mandible in patients referred to shahid beheshti university hospital (babol, iran) over than one decade (2002 to 2012). materials and methods: to accomplish this study, patient’s data were collected referring to their files in shahid b...

The aims of this study were to compare the maximum range of protrusion determined with a ruler with measurements made using a George Gauge (GG) and to validate the methods of measurement (ruler and GG) of the advancement established by mandibular protruding devices (MPDs), using cephalograms as the gold standard. The study comprised 77 patients (63 males, 14 females, mean age 54 years, range 31...

PURPOSE We assessed the use of urethral pressure reflectometry in detecting pressure increases in the female urethra and compared the usefulness of urethral pressure reflectometry vs urethral pressure profilometry in a pharmacodynamic intervention study. MATERIALS AND METHODS In this randomized, double-blind, placebo controlled, crossover study 17 women with stress urinary incontinence or mix...

PURPOSE The purpose of this paper is to show that gap arthroplasty improve mouth opening when treating TMJ ankylosis. PATIENTS AND METHODS Eight patients with TMJ ankylosis were treated by gap arthroplasty. The patients were evaluated by at least twenty-four months (minimum 24 and maximum 48 months). RESULTS Of the eight patients (eleven joints), five (62.5%) had unilateral involvement and ...

A pulsed power generator, Pawn, has been assembled at the Naval Research Laboratory. It employees inductive energy storage and opening switch power conditioning techniques with high energy density capacitors as the primary energy store. The energy stored in the capacitor bank is transferred to a vacuum inductor in "'15 ps. Wire fuses provide the first stage of pulse compression. Futiher power c...