The injection and ionization of volatile organic compounds (VOA) by an integrated chip is experimentally analyzed in this paper. The integrated chip consists of a needle-to-cylinder electrode mounting on the Polymethyl Methacrylate (PMMA) substrate. The needle-to-cylinder electrode is designed and fabricated by Lithographie, Galvanoformung and Abformung (LIGA) technology. In this paper, the nee...

Surgical intervention is still the main modality for the treatment of hydatid disease. Different surgical procedure have been described; however, in the literature there is no collective agreement on the best surgical strategy. For intact pulmonary hydatid cysts, an enucleation or needle aspiration are possible strategies. Though, both methods need careful manipulation due to the serious compli...

This paper presents the nonlinear dynamics and sliding mode control design for a 1-DOF needle insertion robot. The robot actuator is an MR-compatible pneumatic piston-cylinder. A brief review of the dynamics for this type of actuator is provided. The reaction force of tissue on the needle remains an unknown for which our controller compensates. A sliding mode control law is formulated that reli...

This paper reviews the morphological cancer diagnosis criteria on needle biopsies, the predictive meaning of the pathological lesions of HGPIN, HAA, and P.I.A and the peculiar histopathological patterns in prostatic adenocarcinoma. We present the histological parameters that the pathologist has to informe in the diagnositic, on the routine prostate needle biopsy: Gleason histological degree, hi...

Abstract Although direct measurements of the fuel injection pressure and travel injector needle in conjunction with valve train mechanism timing can provide complete diagnostic information about technical conditions systems, this requires installation sensors other equipment directly into which is possible within research laboratories but generally forbidden during operation ship. Malfunctions ...

The instrument described here consists of a special syringe on which sharp cutting needles of various sizes are mounted. These produce undistorted biopsy specimens. Suction is used only to retain the specimen within the needle, and the cleancut cylinder of tissue is quite unlike that obtained by aspiration. Gillman and Gillman&2 used this principle for their liver biopsy instrument. We have ret...

A needle is described for obtaining specimens of non weight-bearing hyaline cartilage from the lateral femoral condyle. The hyaline cartilage of the femur continues onto the lateral surface of the condyle as a 'lip' which lies deep to the capsule of the knee joint and is readily accessible for biopsy. The cylindrical needle is hollow with a sharpened cutting edge and is 5 mm. in diameter. Withi...

The aim of the study reporfed here was to determine if bifurcated needles or multiple puncture cylinders would prove suitable for administration of measles vaccines. Children 9 to 11 months old in S#o Paula, Brazil, were assigned to receive either BikenCam 70 (5 000 TCl0,dO.S ml) or Edmonsfon-Zagreb (7 000 TCID,,IO.5 ml) measles vaccine intradermally with a bifurcated needle or a multiple punct...

This paper presents a reciprocating air microcompressor with a piston diameter of 1 mm. A microcompressor construction is proposed aiming at simple fabrication with lots of space for installing inlet and outlet ports. The inlet port of the microcompressor does not have a moving valve, while the outlet port is equipped with a miniature reed valve. The compression process was numerically modelled...