The multidimensional self-adaptive grid code, SAGE

This report describes the multidimensional self-adaptive grid code SAGE. A two-dimensional version of this code was described in an earlier report by the authors. The formulation of the multidimensional version is described in the first section of this document. The second section is presented in the form of a user guide that explains the input and execution of the code and provides many examples. Successful application of the SAGE code in both two and three dimensions for the solution of various flow problems has proven the code to be robust, portable, and simple to use. Although the basic formulation follows the method of Nakahashi and Deiwert, many modifications have been made to facilitate the use of the self-adaptive grid method for complex grid structures. Modifications to the method and the simplified input options make this a flexible and user-friendly code. The new SAGE code can accommodate both two-dimensional and three-dimensional flow problems

The Dialectics of Power and Dissent: A Study of the U.S. Army\u27s Chemical Stockpile Disposal Program

This research is a study of power in contemporary American society which calls into question the assumptions of openness and permeability so cherished by the pluralists. Within a power framework, we explore the functional realities of government that illuminate why some powerful interests manage to prevail with some consistency, while the broad public is assigned to a lesser task. The context for the study is the U.S. Army\u27s $ 11 billion dollar Chemical Stockpile Disposal Program (CSDP). The Army\u27s decision to use on-site incineration for the destruction of the stockpile ignited a social movement in opposition. Employing participant observation and in-depth interviews, we analyze the citizen-led opposition movement that began at the Lexingtron-Bluegrass Army Depot (LBAD) in Kentucky, and the ambiguous role of the NEPA (National Environmental Policy Act) regulatory process. Using the \u27three dimensions of power\u27 framework formulated by Steven Lukes (1974) and extended by Gaventa (1980), and Bachrach and Baratz (1974), we uncovered patterns of power (i.e., hidden faces of power ) that allowed the Army to exploit some issues and suppress others while all the time urging that citizens abide by the process. This was accomplished chiefly through the \u27mobilization of bias\u27, and propped up by a heavily-financed public relations campaign which emanates from the Pentagon. We conclude with some recommendations for what can be done to revitalize our moribund democracy

An Analysis of the Questions on University Teaching Surveys and the Universities that Use Them: The Australian Experience

This paper is the first attempt to perform an analysis of the internal Quality of Teaching Surveys (QTS) used in all Australian Universities by investigating how they compare across Universities. We categorize the questions on each university’s QTS into one of 18 types and then define a proximity measure between the surveys. We then use an agglomerative cluster analysis to establish groupings of these institutions on the basis of the similarity of their QTSs as well as groupings of question types by their frequency of use. In addition, we also determine if the form of the survey is related to the responses recorded by the Course Evaluation Questionnaire (CEQ) that is administered to all graduates of Australian Universities. This was done by the use of regression analysis to establish if the form of the questionnaire is related to the overall good teaching scores earned by the universities from the CEQ.Tertiary Education; University Rankings; CEQ

A Systematic Analysis of Quality of Teaching Surveys

All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are All tertiary institutions in Australia use the same Course Evaluation Questionnaire (CEQ) however for the internal evaluation of teaching they use their own surveys. This paper performs an analysis of the internal Quality of Teaching Surveys (QTS) used in Australian Universities. We classify the questions within the QTS surveys. This classification is used to explore how different universities’ surveys are similar to each other. We find that some universities use a QTS that is quite distinct from other universities. We also investigate whether there is a particular pattern to the types of questions used in the surveys. We find that there are some question types that are employed widely in a typical survey and others that are not. This analysis can be used by universities to determine how their surveys compare to their peer institutions and other institutions across Australia.

El reasentamiento como instrumento de protección para niños refugiados

Es necesario garantizar que las iniciativas nuevas y las ya existentes para reasentar a niños refugiados en situación de riesgo, incluidos los niños no acompañados, tengan más capacidad para cubrir sus necesidades de protección únicas en el contexto mundial actual

The development and application of the self-adaptive grid code, SAGE

The multidimensional self-adaptive grid code, SAGE, has proven to be a flexible and useful tool in the solution of complex flow problems. Both 2- and 3-D examples given in this report show the code to be reliable and to substantially improve flowfield solutions. Since the adaptive procedure is a marching scheme the code is extremely fast and uses insignificant CPU time compared to the corresponding flow solver. The SAGE program is also machine and flow solver independent. Significant effort was made to simplify user interaction, though some parameters still need to be chosen with care. It is also difficult to tell when the adaption process has provided its best possible solution. This is particularly true if no experimental data are available or if there is a lack of theoretical understanding of the flow. Another difficulty occurs if local features are important but missing in the original grid; the adaption to this solution will not result in any improvement, and only grid refinement can result in an improved solution. These are complex issues that need to be explored within the context of each specific problem

Raked circular-cone aerobraking orbital transfer vehicle

An aerobraking orbital transfer vehicle (AOTV) (80) has aerobrake (82) with a blunted raked-off circular-cone configuration. The other components of the AOTV, including command/control module (95), fuel tanks (86, 88, 89 and 91), rocket engines (94) and afterbody (84), are positioned substantially along resultant force axis (104) of the AOTV (80). The axis (104) coincides with the resultant (sum of lift and drag) force vector. Afterbody (84) is mounted behind the aerobrake (82) with its length extending rearwardly from the aerobrake. The base flow clearance angle .phi. of the aerobrake (80) is 25.degree., thus allowing the afterbody (84) to extend rearwardly from the aerobrake (82) to a much greater extent than possible with a raked-off elliptic-cone aerobraking shield configuration. Afterbody size limitation and other problems associated with the raked-off elliptic-cone aerobraking shield configuration are alleviated by the combination of the aerobrake shape and positioning of the fuel tanks (86, 88, 89 and 91), rocket engines (94) and afterbody (84)