The following chapter is an extension and complement of the chapter titled: 'CYCLOTRON CAVITIES', written by C. Pagani (University of Milano and INFN, Milano, I). It will deal with cavity concepts deviating from conventional cyclotron cavities (Dees) treated in the previous lecture, which are mostly based on a λ/4 or λ/2 coaxial resonator design. Cavities differing from that design usually can ...

AIM: The purposes of this study were to investigate the surface morphology of cavities prepared by Er:YAG laser irradiation and to compare the microleakage degree after composite resin restoration with etched bur cavities in primary teeth, in vitro. MATERIALS AND METHODS: On the buccal (facial) and lingual (palatal) surfaces of 25 primary teeth, a round cavity was prepared with the Er:YAG laser...

The highway of Yongweol-ri, Muan-gun, south-western part of the South Korean Peninsula, is underlain by the abandoned of subsurface cavities, which were discovered in 2005. These cavities lie at shallow depths with the range of 5∼15 meters below the ground surface. Numerous subsidence events have repeatedly occurred in the past few years, damaging infrastructure and highway. As a result of cont...

This technique provides a method for demonstrating the principal branches of the coronary arteries, and the larger cardiac veins. At the same time a cast of the cavities of the heart is produced. Although a relatively low injection pressure is used, the thin-walled cavities of the atria and the right ventricle are considerably distended, so that the cast of these cavities is larger than the cav...

Through physical state changes in biotic or abiotic materials, ecosystem engineers modulate resource availability to other organisms and are major drivers of evolutionary and ecological dynamics. Understanding whether and how ecosystem engineers are interchangeable for resource users in different habitats is a largely neglected topic in ecosystem engineering research that can improve our unders...

OBJECTIVE The aims of this in vitro study were to evaluate: (1) the influence of 5% NaOCl application on Er:YAG-irradiated dentin; and (2) its effect on the quality of adaptation of the composite restoration margins. BACKGROUND DATA Previous research has shown that Er:YAG dentin irradiation produces a thermally affected tissue layer that results in lower bond strength than that of nonirradiat...

In this work, we study theoretically and experimentally optical modes of photonic molecules—clusters optically coupled spherical resonators. Unlike previous studies, do not use stems to hold spheres in their positions relying, instead, on tweezers maintain desired structures. The the resonators are excited using a tapered fiber observed as resonances with quality factor high 10 7 . Using fluore...

The relative effectiveness of plain computed tomography (CT), metrizamide CT, conventional myelography, and magnetic resonance (MR) imaging was compared for the examination of cystic spinal cord lesions. Intramedullary cavities in 18 patients were demonstrated by MR imaging: cavities were uncomplicated in 13 patients, associated with spinal tumors in two, and studied after occipital craniectomy...