[en] The system Essential Service Water (SW) is a safety-related system whose function, which is to transfer heat from ESC until the last heat source, must be ensured. Therefore activities inspection in it are fundamental. In order to control those degradation mechanisms involving the loss of thickness of the pipes of this system, such as microbiological corrosion, a specific chapter in the Additional Inspection Manual (MIA) is made NC Almaraz containing the necessary to have an effective inspection program and an inspection procedure adapted to the type of defects detected bases. (Author)

[en] Instrumental neutron activation analysis of eight geochemical standard materials has been carried out and the concentration values of nine rare-earth elements (La, Ce, Nd, Sm, Eu, Gd, Tb, Yb and Lu) have been determined. Discussion of some problems in the determination of those elements is presented and the results obtained are compared with literature values. In general, good agreement with available data was obtained but discrepancies with concentration values for a number of elements in some of these standards are discussed. (author)

[en] In a nuclear power station there are numerous components susceptible to flow-induced erosion corrosion phenomena (hereinafter FAC). The use of a methodology of predictive for the management of this phenomenon, such as CHECWORKSTMSFA, allows to obtain at each stop to recharge a wear by FAC effective surveillance program, focusing inspections on those critical areas. Once applied CHECWORKSTMSFA in Almaraz NPP, is presented in this paper, a sample of the results obtained as well as the lessons learned in building the model.

[en] According to the objectives stated in the last coordination meeting, Bone mass density (BMD) measurements in men and women belonging to a healthy Chilean population, were continued. The selection of individuals was made in the manner described in previous reports, using the same exclusion criteria and using the modified WHO questionnaire. We present in this report the results of BMD measurements performed from the beginning of this study until May 1998. A statistical analysis of the data is presented

No abstract available

[en] The great amount of waste produced by food industry contains interesting bioactive compounds. The extraction of these compounds requires the by-products previous stabilization being the convective drying one of most used techniques to this end. Drying conditions can affect both drying kinetics and final quality of products. The apple skin, by product of apple juice or cider industries, is rich in functional compounds such as polyphenols or vitamin C. The main goal of this contribution was to quantify the influence of temperature and ultrasound application in drying kinetics of apple skin. For this purpose, drying experiments at different temperatures (-10, 30, 50 and 70 ºC) and with (20.5 kW/m3) and without application of ultrasound were carried out. Drying kinetics were modelled by using a diffusion based model. As can be expected, the higher the temperature the faster the drying. Ultrasound application accelerated the process at every temperature tested being the influence slightly lower than found from the literature for other products. This can be attributed at the physical structure of the apple skin, less porous than the pulp. In any case, the application of ultrasound significantly reduced the drying time. (Author)

No abstract available

[en] The increasing globalization and the importance of knowledge as a strategic resource are leading to the companies to cross the nacional borders and establish subsidiaries in the foreign countries when they try to transfer assets highly tacit and difficult to codify. The present work tries to contribute to light in the existing relation between knowledge and the multinational corporation, analyzing the flows of this resource and proposing a theoretical frame to identify gaps of knowledge that could be originated based on the chosen international competitive strategy. (Author) 43 refs

[en] A purely instrumental neutron activation analysis method, using high resolution gamma-ray spectrometry with intrinsic Ge and Ge(Li) detectors, has been used for the analysis of trace elements in copper concentrate samples. Seven rare earth elements and eight other trace elements (Co, Zn, Se, Sb, La, Ce, Nd, Sm, Eu, Tb, Yb, Hf, Re, Th, U) were determined with good precision. Standard rocks were also analyzed to check the analytical procedure, and the results obtained are in good agreement with literature values. (author)

[en] The great amount of waste produced by the food industry can be an interesting source of bioactive compounds. To this end, convective drying is one of the most extended method to stabilize the industrial by-products. However, drying conditions can affect not only drying kinetics but also the bioactivy of some compounds. Apple skin constitutes one of the main by-product generated in apple juice or cider production. It contains importantamounts of functional compounds such as polyphenols or vitamin C whoseextraction can be interesting. The main aim of this work was to determine the influence of drying conditions, temperature and application of ultrasound, in some quality parameters of dried apple skin. For this purpose, apple skin samples were dried at different temperatures (-10, 30, 50 and 70 oC) and with (20.5 kW/m3) or without application of ultrasound. Color, total phenolic content, antioxidant activity and vitamin C was measured in fresh and dried samples. The increase of drying temperature and the ultrasound slightly reduced the antioxidant properties of samples while no influence in sample color was observed. (Author)