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

Control system for hunger and its implications in animals and man

No description supplie

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

Actuopaleoichnology of a modern Bay of Fundy macro-tidal flat: Analogy with a Mississippian tidal flat deposit (Hartselle Sandstone) from Alabama

Copyright 2019 Zachos and Platt Trace fossil zonation in the Hartselle Sandstone of Mississippian age (Chesterian: Visean-Serpukhovian) exposed on Fielder Ridge, Alabama is compared with modern macro-tidal flat ichnocoenoses on the Bay of Fundy at Lubec, Maine, and demonstrated to be analogous by sedimentologic and ichnotaxonomic criteria. The modern flat has minimal influence from either waves or freshwater influx, and can be divided into five distinct ichnocoenoses, characterized by surface traces (epichnia) and four sedimentologic facies defined by gross grain texture or hydrodynamic characteristics, but lacking significant surface traces. Several characteristics of tidal flat deposits in a fetch-limited, marine (i.e., non-estuarine), meso- to macro-tidal regime can be used to recognize similar environments as old as the late Paleozoic. These criteria include (1) limited influence of wind and waves on the depositional environment, (2) lack of significant freshwater influence and therefore any persistent brackish environments, (3) a distinct spatial distribution of microenvironments defined by substrate and exposure period, (4) high diversity of epichnial traces directly associated with microenvironments across the tidal flat, (5) generally low degree of reworking of traces by bioturbation but high degree of reworking by tidal currents, and (6) preservation of traces of predation and scavenging behavior on an exposed surface. These features, together with the regional depositional pattern of the Hartselle Sandstone interpreted as tide-influenced bars and shoals, support a meso- to macro-tidal interpretation of the depositional environment

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