In this paper, a novel design of all-solid photonic bandgap fiber with ultra-low confinement loss is proposed. The confinement loss is reduced remarkably by managing the number of rods rings, up-doping level, pitch value, and rods diameters. Moreover, the designed PCF shows ultra-flattened dispersion in L- and U-band. Furthermore, a new design, based on introducing of an extra ring of air h...

We have tested a new fiber-optic pressure recording system, Samba, with a thin fiber [outer diameter (OD) = 0.25 mm] and a pressure sensor (length and OD = 0.42 mm) attached to the end. The accuracy of the system tested in vitro was good, with a coefficient of variation of 2.54% at 100 mmHg. The drift was <0.45 mmHg/h, and the temperature sensitivity was approximately 0.07 mmHg/1 degrees C betw...

Sarcoplasmic protein diffusion was studied under different conditions, using microinjection in combination with microspectrophotometry. Six globular proteins with molecular masses between 12 and 3700 kDa, with diameters from 3 to 30 nm, were used for the experiments. Proteins were injected into single, intact skeletal muscle fibers taken from either soleus or extensor digitorum longus (edl) mus...

Poly(vinylidene fluoride-trifluoethylene), P(VDF-TrFE), electrospun membranes were obtained from a mixture of dimethylformamide (DMF) and methylethylketone (MEK) solvents. The inclusion of MEK to the solvent system promotes a faster solvent evaporation allowing complete polymer crystallization during the jet travelling between the tip and the grounded collector. The main electrospinning process...

this was a study to investigate quantitative and qualitative characteristics of fiber extracted from crossbred goats derived from female hair goats indigenous of qom and male cashmere goats of south of khorasan. from a total of 75 indigenous and cross goats aged 1-3, qualities such as the percentage of cashmere in fleece, percentage of hair in fleece, hair staple length, cashmere staple length,...

The value of the permeability in fluid flow through porous media is important for process investigation. In low Reynolds number, the classic Darcy’s law is suitable for simulation of fluid flow. In this paper, an experimental study for evaluation of preformed fiber permeability has been done. Also, the deviations from the classical Darcy law by experimental and numerical simulation of the N...

purpose: to quantify the intraobserver reproducibility of retinal nerve fiber layer (rnfl) measurements using scanning laser polarimetry with variable corneal compensation in glaucoma suspect patients. methods: twenty-six eyes of 26 glaucoma suspect patients were included. complete ophthalmologic examination and standard automated perimetry were performed for all of them. rnfl measurements were...