[en] A relational database has been developed to store data representing physical values from TJ-II discharges. This new database complements the existing TJ-EI raw data database. This database resides in a host computer running Windows 2000 Server operating system and it is managed by SQL Server. A function library has been developed that permits remote access to these data from user programs running in computers connected to TJ-II local area networks via remote procedure cali. In this document a general description of the database and its organization are provided. Also given are a detailed description of the functions included in the library and examples of how to use these functions in computer programs written in the FORTRAN and C languages. (Author) 8 refs

[en] In this documents are described the functionalities of the application developed by the Data Acquisition Group for TJ-II signal visualization. There are two versions of the application, the On-line version, used for signal visualization during TJ-II operation, and the Off-line version, used for signal visualization without TJ-II operation. Both versions of the application consist in a graphical user interface developed for X/Motif, in which most of the actions can be done using the mouse buttons. The functionalities of both versions of the application are described in this user's guide, beginning at the application start-up and explaining in detail all the options that it provides and the actions that can be done with each graphic control. (Author) 8 refs

[en] Understanding the origin of asymmetries, being in plasma flows reaching the divertor region being in plasma emissivity from the confined volume, is a question of great interest in magnetic confined plasmas research. In the TJ-II stellarator, a set of bolometer systems distributed around the vacuum chamber has been installed to monitor the up-down and in-out radiation asymmetries that are observed in transitions to different confinement regimes. Although plasma emissivity is a complex magnitude, the comparison of signals from twin detectors placed at selected positions, may serve to distinguish among the different causes of asymmetry. This is a non-perturbing method that is especially appropriate when plasma wall clearance is small. (Author)