a general robotic mechanism was presented for in-pipe inspection oflevel pipes with varied diameter or curved pipelines. the robot employed three legs comprised of parallelogram linkages mechanism which enables adapting to various elbow joints in the piping systems. the curvatures in pipeline are the most important constraints in front of the robot through navigation process. to study the adapt...

purpose: to evaluate the success rate of strabismus surgery with both adjustable and non-adjustable suture technique, moreover,also compared the success rate of these methods regardless of cause, type and amount of deviation is aand history of previous surgery. methods: in this study 296 patients were included (fromduring 2003 to 2011). patients divided in two groups; strabismus surgery with ad...

Raman microprobe studies of long crystalline Si nanowires reveal for the first time the evolution of phonon confinement with wire diameter. The Raman band at approximately 520 cm-1 in bulk Si is found to downshift and asymmetrically broaden to lower frequency with decreasing wire diameter D, in good agreement with a phenomenological model first proposed by Richter et al. An adjustable parameter...

Free-standing colloidal arrays can be easily transferred to supported fibers. These films conform and provide the template to have consistent submicrometer and nanometer features transferred to the periphery of rough, 7 μm diameter fibers. This technique is adjustable to a number of fiber surfaces and colloidal template sizes.

We describe how twist could play an essential role in stabilizing 20 nm diameter sickle hemoglobin fibers. Our theory successfully reproduces the observed variation of helical pitch length with fiber diameter. With no remaining adjustable parameters it also yields a prediction for the torsional rigidity of sickle hemoglobin fibers that is in good agreement with experiment and hence retains the ...

The mandrel plays a vital role in metal tube bending limit improvement and high-quality achievement. For the forming process of tubes with different diameters, corresponding needs to be customized, which has disadvantages long design cycle, high manufacturing cost, low reuse rate. Therefore, novelty concept diameter adjustable (DAM) based on multi-point contact was proposed adapt processes. Sin...

A general robotic mechanism was presented for in-pipe inspection oflevel pipes with varied diameter or curved pipelines. The robot employed three legs comprised of parallelogram linkages mechanism which enables adapting to various elbow joints in the piping systems. The curvatures in pipeline are the most important constraints in front of the robot through navigation process. To study the adapt...

It was established at the beginning of 21st century that critical resolved shear stress small-sized (diameter from 50 nm to $10\text{ }\text{ }\ensuremath{\mu}m$) metallic crystals fabricated bulk increases drastically with decreasing specimen diameter. Dou and Derby [Scr. Mater. 61, 524 (2009)] showed that, stresses single various fcc metals obeyed a universal power law size an exponent $\ensu...

PURPOSE OF REVIEW To look at the recent applications of femtosecond laser (FSL) technology for capsulotomy and nuclear fragmentation in cataract surgery, the potential advantages, such as more precise and adjustable capsulotomies and the use of less phaco energy with this technology. RECENT FINDINGS The FSL can create incisions or spaces of different shapes, at a desired depth. This has start...