In this paper, a tapered tip optical fiber probe sensor for localized refractive index (RI) measurements is presented. This sensor’s interaction with analytes is confined to a few micro-meters which makes it a promising candidate for in-vivo or even intra-cellular RI monitoring. This tapered tip was simply fabricated by etching optical fiber with hydrofluoric acid to a conic shape with a sub-m...

In this study, a fully integrated and portable Rotary Genetic Analyzer has been developed to analyze the gene expression of influenza A v irus . The Rotary Genetic Analyzer is made up of four parts : a disposable microchip, three thermal blocks for temperature control, a servo-motor for precise and high-rate spinning of the chip, and a miniaturized optical fluorescence detector. The microdevice...

AIM To evaluate the efficacy of 0.5%, 2.5% and 5.25% sodium hypochlorite (NaOCl) as intracanal irrigants associated with hand and rotary instrumentation techniques against Enterococcus faecalis within root canals and dentinal tubules. METHODOLOGY A total of 180 extracted human premolar teeth were infected for 21 days with E. faecalis. The specimens were divided into 12 groups, as follows: gro...

INTRODUCTION High-accuracy rotary encoders are required for rotational axis position measurement in ultraprecision manufacturing and measurement equipments. A typical rotary encoder is made of a glass disk with a fine grating pattern and a scanning read head unit. Digital pulse trains are output from the read head to represent the disk rotary position. The angular measurement accuracy of such a...

The paper discusses a fundamental method of accelerated bench tests for oil-injceted rotary compressor oils. The test compressor, test conditions and evaluated performance indexes of the oils are reasonably determined according to the results of bench tests and field services of the oils.

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