PRELIMINARY VALIDATION OF A HIGH-PERFORMANCE ELECTROTHERMAL MODEL OF AN ELECTROMAGNETIC HEATING SYSTEM

To aid in the design and development of an electrical induction thermoplastic pipe-fusion product, Ansys HFSS, an electromagnetics simulation package, and Ansys Mechanical, a thermal dynamics simulation package, were used to simulate a model of the pipe-fusion product. HFSS estimated the currents induced in conductive susceptors embedded in the pipe fitting. Then, Mechanical estimated temperature dynamics on the susceptors as a function of the induced currents. The heat generated by induced currents on the susceptors increases temperatures in the vicinity of the region to be fused. The increased temperature of the thermoplastic facilitates a pipe fuse. The simulation results were compared to thermal measurements of the physical system. Thermocouples and infrared cameras were used to acquire thermal measurements of the pipe fusing process, while a micro computed tomography (μCT) scanner was used for internal imaging of fitting components’ movement before and after the fusing process. Adjustments to the HFSS solution parameters were needed to achieve reasonable agreement with the physical measurements. In the final analysis, comparison against measured data resulted in a simulation that is sufficient to serve as a meaningful tool in the development of new pipe fusion products. This thesis provides details on how the model of the pipe fusion system was created and how the results of the model’s simulation were validated against thermal measurements of a physical electrical induction pipe-fusion system

Lived Experiences of Transitions in International Nursing Students

Throughout life, individuals are faced with various transitions, and how they manage these transitions impacts the transition outcomes and actual or potential alterations in health. It is imperative that nurses have knowledge of the conditions and processes of transitions as well as possible effects on well-being. From this perspective, nurses are able to intercede and assist individuals to positive transitional outcomes. The purpose of this descriptive phenomenological study was to describe the transition experience of international nursing students studying in the United States

Performance of a reciprocating packed extraction column

The performance of a mechanically-aided liquid extraction column was investigated utilizing the methyl isobutyl ketone-acetic acid-water ternary extraction system. Mechanical power was added to the extraction system by reciprocating a wire-mesh packing of high void volume at various frequencies and displacements. The effects of total throughput on performance were studied in increments of 5,000 pounds per hour per square foot up to the onset of flooding, and the column performance was evaluated as a function of power addition to the extraction system. In comparing the various types of mechanically-aided extraction columns, it was determined that the throughputs achieved with the wire-mesh packed column utilized in this work were considerably higher than any other reported throughputs for mechanically-aided extraction columns. Competitive performance was also achieved with the reciprocating packed extraction column at throughputs which were higher than those achieved with various other designs of mechanically-aided extraction columns --Abstract, page ii

The Executive Of The Consolidated Schools In Western Kansas

The purposes of this study are: 1. To determine the extent or scope of the activities performed by the executives of consolidated schools in Western Kansas. 2. To discover the amount of time which those executives devote to each of such activities. 5. To ascertain the personal and professional qualifications of the executives of consolidated schools in Western Kansas. 4. To enumerate the mistakes or failures of the executives of consolidated schools in Western Kansas from the viewpoint of the teachers under supervision. 5. To determine if the administration of consolidated schools might be improved and to suggest remedial measures for such improvement if found needful

Paper Session I-C - Ranteck: The Company

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We are friends but are we family? Organizational identification and nonfamily employee turnover

Retaining talented employees continues to be a challenge for organizations. This challenge is especially difficult for family businesses because the family-centric priorities of these firms often disadvantage nonfamily employees and make retaining them problematic. Our study posits organizational identification, or internalizing the firm’s identity as one’s own, as a key factor in overcoming this challenge. Fostering organizational identification in family businesses is complicated by the presence of both family and nonfamily employees, and research is needed to understand the ways in which these complex social dynamics operate. To gain this understanding, we adopt a social network perspective to examine the differential impact of friendships with family and nonfamily members on nonfamily employees’ organizational identification and turnover. Results from a study of the nonfamily employees of a family-owned service company show that centrality in both family and nonfamily friendship networks reduces turnover, but that friendships with family members have a stronger effect. Results also show that various forms of embeddedness in social networks have indirect effects on turnover through organizational identification, highlighting identification’s importance for retaining nonfamily employees. Implications for turnover theory and nonfamily employees are also discussed