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61	Integrated network application management (INAM) Nelson, Mark D. 12 1900 (has links) Approved for public release, distribution is unlimited / This thesis attempts to create a desire for change in DoD's current approach to Network Application Management (NAM). The evolution of NAM into Integrated Network Application Management (INAM) is a crucial component of Network Centric Warfare and achieving Information Superiority and Interoperability. INAM is outlined as three functional requirements, which are Network Awareness, Mission Prioritization linkage to Network Resources, and the Balancing of Service Management. Scenarios play a key role in illustrating the new threats that DoD faces today. These scenarios also identify limitations and challenges to NAM as it exists today. These challenges require significant improvements in flexibility and responsiveness, while providing for wide integration. Trends supporting change are identified in this thesis. Two of the more important trends are the rise of Architectural and Object Oriented Development. Examples such as Training and Testing Enabled Architecture (TENA), Surveillance and Target Acquisition Network (STAN), and Virtual Proving Ground (VPG) are clear examples of these trends. The merging of the Computer Industry's efforts to expand the reach of Operating Systems with the traditional efforts from Network Management is also a trend that is examined. Organizations like Distributed Management Task Force (DMTF) are important to such examinations. Successful change can not be achieved without planning for the transition. This thesis also presents some active transition efforts addressing Network Centric Warfare. TENA, VPG and Naval Postgraduate School's Information Technology Management Master's Program provide three examples of addressing transition in DoD. / Civilian, United States Army Yuma Proving Ground Netcentric computing United States Information technology Military aspects INAM Network awareness Mission priorities Network services JV2020 Information superiority Interoperability NCW Transition management OSI SNMP TMN NOC QoS TCP FORCEnet A2C2 STAN Enterprise management FEAF FI2010 TENA ATEC DTC VPG MC02 JFCOM JNTC NMCI PAMS Neutral zone
62	Assessing the communication climate focus of professional nurses in selected public hospitals in the Gauteng province through the development of a measuring instrument Wagner, J-D. 11 1900 (has links) The purpose of this study was to develop and test a measuring instrument based on the Gibb’s Defensive Communication Climate Paradigm (1961) to assess the communication climate focus of professional nurses in selected public hospitals in the Gauteng province. This focus involves the communication behaviour orientation of the professional nurses and their perceptions of the communication behaviour orientation of their operational managers. The Gibb’s model comprises six bipolar conceptual continuums, namely Evaluation-Description, Control-Problem orientation, Strategy-Spontaneity, Neutrality-Empathy, Superiority-Equality and Certainty-Provisionalism Continuums. The study consisted of a non-experimental design, including a developmental phase and a testing phase. During the developmental phase the researcher developed a measuring instrument (a Semantic Differential Scale questionnaire); used a simple, random sample method to pre-test the instrument; analysed the data by applying Cronbach’s Alpha reliability analysis and refined the instrument. Further refinement of this new instrument by future researchers is recommended. During the testing phase the researcher also used a simple, random sample, consisting of professional nurses (N = 270) from three selected public hospitals in Gauteng; tested the items against the biographical data and the three research questions and analysed the obtained data by utilising both descriptive and inferential statistics. A Delphi panel of experts were involved in both phases of the study. The results of the study indicated that although the respondents had a predominantly supportive communication behaviour orientation, they were more focused on the communication behaviour of their operational managers than on their own. Furthermore, the results indicated no significant differences in the influencing factors: age, tenure (periods in hospital), gender, language and institution (public hospital), in terms of the six conceptual continuums. Significant differences were found only in the factor: unit/ward, indicating that the supportiveness of the communication behaviour of professional nurses could be dependent on their specific work environment. Guidelines aimed at the development of a supportive climate were drawn up for the National Department of Health, Gauteng Department of Health, public hospitals, operational managers and professional nurses. It is recommended that implementation of the newly developed guidelines be pivotal for public hospitals, to refocus their communication climates towards supportive communication. / Health Studies / D. Litt. et Phil. (Health Studies) Communication climate Communication climate focus Evaluation-Description Continuum Control-Problem orientation Continuum Strategy-Spontaneity Continuum Neutrality-Empathy Continuum Superiority-Equality Continuum Certainty-Provisionalism Continuum Defensive communication Supportive communication Measuring instrument Public hospitals Professional nurses Operational managers 610.730692096822 Nurses -- South Africa -- Gauteng
63	An Analysis of Microstructure and Corrosion Resistance in Underwater Friction Stir Welded 304L Stainless Steel Clark, Tad Dee 30 June 2005 (has links) (PDF) An effective procedure and parameter window was developed for underwater friction stir welding (UWFSW) 304L stainless steel with a PCBN tool. UWFSW produced statistically significant: increases in yield strengths, decreases in percent elongation. The ultimate tensile strength was found to be significantly higher at certain parameters. Although sigma was identified in the UWFSWs, a significant reduction of sigma was found in UWFSWs compared to ambient FSWs. The degree of sensitization in UWFSWs was evaluated using double loop EPR testing and oxalic acid electro-etched metallography. Results were compared to base metal, ambient FSW, and arc welds. Upper and lower sensitization localization bands were identified in the UWFSWs. Although higher sensitization levels were present in UWFSWs compared to the arc weld, ambient FSW, and heat treated base metals, the UWFSWs were found less susceptible to corrosion than arc welds due to the subsurface location of the sensitization bands. A SCC analysis of UWFSWs relative to base metal and arc weldments was performed. U-bends were exposed to two 3.5% NaCl cyclic immersion experiments at 21 °C and 63 °C for 1000 hours each. A tertiary test was conducted in a 25% NaCl boiling solution. The UWFSW u-bends were no more susceptible to SCC than base metal in the cyclic immersion tests. In the boiling NaCl test, the SCC of the UWFSWs showed significant improvement over the SCC of arc welds. Arc u-bends cracked entirely within the weld bead and HAZ, while SCC in the UWFSWs showed no cracking localization. friction stir weld FSW underwater friction stir weld UWFSW stainless steel stir zone 304L austenite austenitic procedure process window welding parameters corrosion intergranular stress corrosion cracking SCC u-bend sensitization PCBN double loop EPR current ratio potentiostat electrochemical reactivation sampling area quantification tensile strength ductility elongation statistical significance microstructure optical microscopy oxidation surface finish base metal sigma Murakami oxalic acid electro-etch arc weld comparison cyclic immersion test boiling NaCl test subsurface location residual stress improvement superiority ASTM standard HAZ heat affected zone Mechanical Engineering

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