Abstract: A power generating system operates in a flowing body of fluid, such as water or air. The system includes a continuous loop member engaging and rotating around two rotatable members, which, in turn, are operatively connected to a generator. The continuous loop member can include a plurality of attachment arms that extend outwardly therefrom. A collapsible fluid catchment device can be attached to each attachment arm. The fluid catchment devices can open in the direction of movement of the water thereby driving the continuous loop member and, consequently, the rotatable members. When moving against the fluid flow, the catchment devices can collapse to a closed position to thereby reduce drag. The attachment arms are long enough so that the catchment devices are spaced a sufficient distance from the continuous loop member to prevent contact with the rotatable members and the continuous loop member when the catchment devices are fully open.

Abstract: A power generating system operates in a flowing body of fluid, such as water or air. The system includes a continuous loop member engaging and rotating around two rotatable members, which, in turn, are operatively connected to a generator. The continuous loop member can include a plurality of attachment arms that extend outwardly therefrom. A collapsible fluid catchment device can be attached to each attachment arm. The fluid catchment devices can open in the direction of movement of the water thereby driving the continuous loop member and, consequently, the rotatable members. When moving against the fluid flow, the catchment devices can collapse to a closed position to thereby reduce drag. The attachment arms are long enough so that the catchment devices are spaced a sufficient distance from the continuous loop member to prevent contact with the rotatable members and the continuous loop member when the catchment devices are fully open.

Abstract: Systems and methods are disclosed to provide educational assessment of reading performance for a student by receiving a log-in from the student over a network; presenting a new concept to the student through a multimedia presentation; testing the student on the concept at a predetermined learning level; collecting test results for one or more concepts into a test result group; performing a diagnostic assessment of the test result group; and adaptively modifying the predetermined learning level based on the adaptive diagnostic assessment and repeating the process at the modified predetermined learning level for a plurality of sub-tests.

Abstract: Systems and methods provide educational adaptive diagnostic assessment of student performance by: a. receiving one or more parameters for an assessment and one or more sets of test questions for a sub-test; b. selecting a set of test questions from the sub-test; c. presenting the selected set of test questions to the student and collecting responses thereto; d. generating a score for the responses to a completed set; e. applying the score to select either the current set of questions or a new set of test questions; and f. repeating (c)-(e) for the subtest; and g. using a final score for the sub-test to select a new set of questions in a subsequent sub-test.