Analysis of geometry and design point performance of axial flow turbines. 1 - Development of the analysis method and the loss coefficient correlation

Stream-filament analysis procedure and correlation of total pressure loss coefficients to form basis of computer program to investigate design point performance of axial turbine

Special Needs Planning 101: Securing Your Child’s Future

You are invited to an Educational Experience that will empower you to build a solid planning foundation for you, your loved one and your entire family. You will not only learn about wills, trusts, the ABLE Act, Special Needs Trust, Guardianship, Defining your child’s lifetime needs, Government Benefits, Proactive Tax Strategies, Communication Techniques, but you will also learn the importance of integrating all the necessary pieces into a cohesive plan, so the vision you have for your child’s life can become a reality whether you are here or not

A Phenomenological Study of Early Resignation Among Southern Territory Salvation Army Officers

The purpose of this transcendental phenomenological study was to understand early resignation of Salvation Army officers in the Southern Territory by investigating their lived experiences with the phenomenon. The theories guiding this study were role identity, as it explains the differences in perceptions and actions that accompany a role and emotional intelligence (EI), which refers to a generic competence in perceiving emotions, both in oneself and in others. The central research question addressed how former Salvation Army officers in the Southern Territory perceive that their officership experiences impacted their decision to resign early. The subquestions for this study addressed (a) how former Salvation Army officers in the Southern Territory who resigned early perceive that their training prepared them to handle the challenges of officership; (b) how former Salvation Army officers in the Southern Territory who resigned early describe the impact of role expectations on their officership; and (c) how former Salvation Army officers in the Southern Territory who resigned early perceive that they exhibited EI in their officership. Through purposeful sampling, 10 participants were selected. In addition, data collection included individual interviews, focus group interviews, and archival records. Data analysis involved the review of interview transcripts and identifying significant statements for coding and analyzing purposes in order to understand the lived experiences of officers who resigned early. Findings indicated that officer development in practical administrative responsibilities, along with EI training and in-depth biblical studies, increased resiliency, ability, self-confidence and self-care, thereby reducing the attrition rate of officers in the Southern Territory

Control of Initiation, Rate, and Routing of Spontaneous Capillary-Driven Flow of Liquid Droplets through Microfluidic Channels on SlipChip

This Article describes the use of capillary pressure to initiate and control the rate of spontaneous liquid–liquid flow through microfluidic channels. In contrast to flow driven by external pressure, flow driven by capillary pressure is dominated by interfacial phenomena and is exquisitely sensitive to the chemical composition and geometry of the fluids and channels. A stepwise change in capillary force was initiated on a hydrophobic SlipChip by slipping a shallow channel containing an aqueous droplet into contact with a slightly deeper channel filled with immiscible oil. This action induced spontaneous flow of the droplet into the deeper channel. A model predicting the rate of spontaneous flow was developed on the basis of the balance of net capillary force with viscous flow resistance, using as inputs the liquid–liquid surface tension, the advancing and receding contact angles at the three-phase aqueous–oil–surface contact line, and the geometry of the devices. The impact of contact angle hysteresis, the presence or absence of a lubricating oil layer, and adsorption of surface-active compounds at liquid–liquid or liquid–solid interfaces were quantified. Two regimes of flow spanning a 104-fold range of flow rates were obtained and modeled quantitatively, with faster (mm/s) flow obtained when oil could escape through connected channels as it was displaced by flowing aqueous solution, and slower (micrometer/s) flow obtained when oil escape was mostly restricted to a micrometer-scale gap between the plates of the SlipChip (“dead-end flow”). Rupture of the lubricating oil layer (reminiscent of a Cassie–Wenzel transition) was proposed as a cause of discrepancy between the model and the experiment. Both dilute salt solutions and complex biological solutions such as human blood plasma could be flowed using this approach. We anticipate that flow driven by capillary pressure will be useful for the design and operation of flow in microfluidic applications that do not require external power, valves, or pumps, including on SlipChip and other droplet- or plug-based microfluidic devices. In addition, this approach may be used as a sensitive method of evaluating interfacial tension, contact angles, and wetting phenomena on chip

Chanson, In F

https://digitalcommons.library.umaine.edu/mmb-ps/1440/thumbnail.jp

Bubble popper: considering body contact in games

Exertion games, digital games that involve physical effort, are becoming more popular. Although some of these games support social experiences, they rarely consider or support body contact. We believe overlooking body contact as part of social play experiences limits opportunities to design engaging exertion games. To explore this opportunity, we present Bubble Popper, an exertion game that considers and facilitates body contact. Bubble Popper, which uses very simple technology, also demonstrates that considering and facilitating body contact can be achieved without the need to sense body contact. Through reflecting on our design and analyzing observations of play we are able to articulate what impact physical space layout in relation to digital game elements, and physical disparity between input and digital display can have on body contact. Our results aid game designers in creating engaging exertion game experiences by guiding them when considering body contact, ultimately helping players benefiting from more engaging exertion games

Epic Revisionism: Russian History and Literature as Stalinist Propaganda

Focusing on a number of historical and literary personalities who were regarded with disdain in the aftermath of the 1917 revolution - figures such as Peter the Great, Ivan the Terrible, Alexander Pushkin, Leo Tolstoy, and Mikhail Lermontov - Epic Revisionism tells the fascinating story of these individuals\u27 return to canonical status during the darkest days of the Stalin era. An inherently interdisciplinary project, Epic Revisionism features pieces on literary and cultural history, film, opera, and theater. It pairs scholarly essays with selections from Stalin-era primary sources - newspaper articles, unpublished archival documents, short stories - to provide students and specialists with the richest possible understanding of this understudied phenomenon in modern Russian history.https://scholarship.richmond.edu/bookshelf/1063/thumbnail.jp

Genetic distance predicts trait differentiation at the subpopulation but not the individual level in eelgrass, Zostera marina.

Ecological studies often assume that genetically similar individuals will be more similar in phenotypic traits, such that genetic diversity can serve as a proxy for trait diversity. Here, we explicitly test the relationship between genetic relatedness and trait distance using 40 eelgrass (Zostera marina) genotypes from five sites within Bodega Harbor, CA. We measured traits related to nutrient uptake, morphology, biomass and growth, photosynthesis, and chemical deterrents for all genotypes. We used these trait measurements to calculate a multivariate pairwise trait distance for all possible genotype combinations. We then estimated pairwise relatedness from 11 microsatellite markers. We found significant trait variation among genotypes for nearly every measured trait; however, there was no evidence of a significant correlation between pairwise genetic relatedness and multivariate trait distance among individuals. However, at the subpopulation level (sites within a harbor), genetic (FST) and trait differentiation were positively correlated. Our work suggests that pairwise relatedness estimated from neutral marker loci is a poor proxy for trait differentiation between individual genotypes. It remains to be seen whether genomewide measures of genetic differentiation or easily measured "master" traits (like body size) might provide good predictions of overall trait differentiation