The apical delta is an intricate system within the root canal and incompletely debridement may affect the long-term prognosis of root canal therapy. The aim of the present study is to investigate the morphologic features of apical deltas in human teeth with micro-computed tomography (micro-CT) using a centreline-fitting algorithm. One hundred and thirty-six apical deltas were detected in 1400 t...

An ozonizer operating in water for the generation of ozone water was proposed and examined. The key to ozone generation was the use of a flat circular Shirasu porous glass (SPG) with a mean pore diameter of 10�m, which functioned in bubble supply and the formation of micro-barrier discharges. The micro-barrier discharges were formed in micropores of the SPG, and bubbles formed in contact with t...

A new disposable micro tissue culture plate was developed and tested for use in virological procedures. Miniature mammalian cell cultures (minicultures) were grown in these plates. Each plate contained 96 circular cultures in flat wells (7 mm in diameter). Replicate titrations of a number of viruses were performed in various tissues. Excellent reproducibility was demonstrated. Mean infectivity ...

We present high-resolution multi-frequency single-pulse observations of the Vela pulsar, PSR B0833−45, aimed at studying micro-structure, phase-resolved intensity fluctuations and energy distributions at 1.41 and 2.30 GHz. We find micro-structure in about 80% of all pulses independent of observing frequency. The width of a micropulse seems to depend on its peak flux density, whilst quasi-period...

To have efficient communication microwave antennas play major role, keeping this in mind we have designed a new micro strip antenna using proximity feeding in the range of 5GHz. The new design has been validated and has proved to be better than other designs. The bandwidth has been in the satisfactory range and also gain. This paper focus on the bandwidth enhancement of micro strip circular pat...

Micro-optics are widely used in numerous applications, such as beam shaping, collimation, focusing and imaging. We use femtosecond 3D printing to manufacture free-form micro-optical elements. Our method gives sub-micrometre accuracy so that direct manufacturing even on single-mode fibres is possible. We demonstrate the potential of our method by writing different collimation optics, toric lense...

290 Abstract— This paper aims to simulate dielectric elastomeric (DE) diaphragm for a micropump. First a theoretical study is done to compare the different actuation methods that are currently being used in this field. Then a circular DE diaphragm is modeled for a micropump. The material assumed for the micro diaphragm is 3M’s VHB 4910 (polyacrylic tapes available in the market). The thickness ...