IMEKO Event Proceedings

Page 794 of 822 Results 7931 - 7940 of 8218

Finizia Russo, Vittoria Lombardi, Carmina Viola, Maria Carmela Polese, Elena Coccia, Marina Paolucci, Ettore Varricchio
Use of Polyphenols Extracted by Olive Mill Wastewater as Dietary Supplements in Pig: Effects on Gut Associated Lymphoid Tissue, Blood Leukocytes and Alveolar Macrophages

The polyphenols are able to reduce the amount of free radicals and stimulate the immune response. In this study, polyphenols extracted from olive mill wastewaters, were fed to pigs for three months. Morphological, inflammation and immunological parameters were evaluated. Historical samples of gastrointestial tracts were analyzed for immunodetection of cyclooxygenase-2; superoxide anion production in primary cell cultures of blood leukocytes and alveolar macrophages was measured.

Maria Carmela Polese, Finizia Russo, Carmina Viola, Elena Coccia, Marina Paolucci, Ettore Varricchio
Use of Polyphenols Extracted by Olive Mill Wastewater as Dietary Supplements in Pig: Effects on Meat Storage and Quality

The oil industry, which is one of the leading agro-industrial sectors in the Mediterranean area and Campania Region, generates large amounts of olive mill wastewaters (OMWW) characterized by the presence of phenolic compounds which slow down its biodegradation.

Elena Coccia, Lucia Parrillo, Carmina Viola, Finizia Russo, Maria Carmela Polese, Ettore Varricchio, Marina Paolucci
Use of Polyphenols Extracted from Agricultural Waste By-Product as Dietary Supplement in Aquaculture

Agricultural waste by-product are a rich source of biomolecules with antimicrobial, immunostimulant, anti-tumoral and anti-oxidants properties. The use of polyphenols extracted from these by-products as dietary supplements in animal feed may improve the health of animals thus limiting the use of antibiotics. We used the polyphenols extracted from the skin of chestnuts, of which Campania is the main producer, in order to evaluate a possible immunostimulant activity on leucocytes isolated from blood and GALT of the rainbow trout Oncorhynchus mykiss.

Suelí Fischer Beckert, Gustavo Domeneghetti, Danielle Bond
USE OF POOLED STANDA DATA IN CALCULATING

The specification of mechanical properties is essential for adequate choice of material, as well as for design and manufacturing of components and products. recognised that the present state of uncertainties in testing activities is not as comprehensive as in the calibration fields. This paper presents guidelines calculation of measurement uncertainty (tensile strength and percentage elongation after fracture making the type A evaluation from historical data. also demonstrated that the application of deviation has larger representativeness than the use of diameter and load standard deviations.

Damir Ilić, Ivan Leniček
USE OF PRECISE DIGITAL VOLTMETERS FOR IMPEDANCE MEASUREMENTS

The traceability chain of the Primary Electromagnetic Laboratory (PEL) is presented, and the place of the resistance standard of 100 MΩ is analysed in details, as well as its construction and characteristics. Its one hundred 1-MΩ elements in parallel connection forms the 10-kΩ value, and can be easily compared to the reference 10 kΩ standard of PEL; in that way its long-term drift was found to be ≈ 0,067 ppm/day (ppm means parts per million). Furthermore, the method of comparison of 100 MΩ resistance standard by means of 100 pF capacitance standard and high-resolution digital voltmeters (DVs) is analysed, where DVs measure ac voltage of frequency close to 16 Hz in dcv range, and the mean value of one-third cycle is measured. It was found that the voltage ratio could be stable within the limits of 0,1 ppm when the additional frequency stabilization of the ac calibrator is used.

Melina Pérez Urquiza, Yoshito Mitani, Hector Nava Jaimes
USE OF REFERENCE VALUES FOR A PROFICIENCY TEST SCHEME IN THE MEASUREMENT OF GLUCOSE AND CHOLESTEROL IN HUMAN SERUM TO EVALUATE IVD KITS

The first proficiency testing round 630-IL-1002, was carried out with a Reference Material DMR-180a with reference values obtained by using Gas Chromatography Isotopic Dilution mass spectrometry (GC-IDMS) methods, in which glucose, cholesterol and creatinine were measured. The serum pool was obtained from blood donors and all the analytes were at the normal concentration in Mexican population. The laboratories participants used different field methods to measure the analytes. The Mexican compulsory standard NOM-064-SSA1-1993 "specifications for equipments IVD" requests <5% for reproducibility and accuracy of IVD equipments. The results obtained by field laboratories in the proficiency testing round are compared to the reference value and uncertainty provided by National Metrology Institute (CENAM). The quality of measurements are dependent not only on the laboratory competence but also on the methods used by those commercially available IVD kits. It is concluded that quality assessment of measurements in clinical laboratories should be critically evaluated by using stable and certified reference materials.

A. Abd-Elrahman, L. Pearlstine, S. Smith, P. Princz
USE OF SMALL FORMAT DIGITAL AERIAL IMAGES FOR CLASSIFICATION OF SATELLITE IMAGES

The process of acquiring small format aerial digital images for assessing land cover classification of Landsat Thematic Mapper (TM) satellite images is discussed. Images positional accuracy and suitability for assessing land cover classification is tested. Using an economic configuration of onboard navigation sensors, a positional accuracy of 15 m in the images center points locations can be achieved. In addition, dithered 3 band color infrared images can be used for assessing land cover classification of TM satellite images.

Albert Weckenmann, Johannes Bernstein
USER INTERFACE FOR OPTICAL MULTI-SENSORIAL MEASUREMENTS AT EXTRUDED PROFILES

Nowadays the process-control of concave extruding is a measuring task with rising requirements. A novel optical bi-sensorial measurement system – consisting of a shadow- and a light-section-system – as well as suitable methods of analysis for the in-line inspection are presented. The proposals help to ensure the product quality on a higher level than before. The combination of dimensional accuracy and data-density leads to excellent results. The optical multi-sensor measurement system has to be calibrated and aligned to detect the same surface zone despite of high refresh rates and optical resolutions. The metered characteristics will be coordinate transformed to extrinsic world-coordinates for evaluating form deviations of complex parts. An appropriate user-interface enables to re-calculate measurement objects in-line and evaluate the conformity of the part consequently. Finally the real length information assists to influence the process control. After successful test in laboratory the results will be proved in production to the target: measurement uncertainty of better 0.1 mm at every profile.

S. Takayama, K. Kariya
USER INTERFACE OF MEASURING INSTRUMENTS ON ENGINEERING EDUCATION

According to the high performance and digitalization of measuring instruments, the construction of operation panel has become more simple. On educational viewpoint, this causes the degraducation of the efficiency of instrument operation and that learning. This paper shows the consideration of subjects concerning to user interface of the operation of measuring instruments and describes the potential possibility of operation panel in the virtual measurement system supported by personal computers. Especially, the viewpoint focuses on the navigation function on a virtual operation panel, which is not realized on actual measuring instruments.

S. Takayama, K. Kariya
User Navigation Interface of Virtual Instruments in Engineering Education

To construct operations of multi-functional measuring instruments intuitively and understandably decreases difficulty of measurement and pulls up motivation of users who learn measurement and instrumentation in schools. On engineering educational viewpoint, this attention is important. This paper shows the consideration of subjects concerning to user interface of the operation of measuring instruments and describes the potential possibility of operation panel in the virtual measurement system supported by personal computers. Especially, the viewpoint focuses on the navigation function on a virtual operation panel, which is not realized on actual measuring instruments.

Page 794 of 822 Results 7931 - 7940 of 8218