2,404 research outputs found

    Surface inspection: Research and development

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    Surface inspection techniques are used for process learning, quality verification, and postmortem analysis in manufacturing for a spectrum of disciplines. First, trends in surface analysis are summarized for integrated circuits, high density interconnection boards, and magnetic disks, emphasizing on-line applications as opposed to off-line or development techniques. Then, a closer look is taken at microcontamination detection from both a patterned defect and a particulate inspection point of view

    RELEASE OF NITRATE-NITROGEN AND HEAVY METALS FROM LAND APPLIED BIOSOLIDS IN NORTHERN AREAS

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    Advanced heat receiver conceptual design study

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    Solar Dynamic space power systems are candidate electrical power generating systems for future NASA missions. One of the key components of the solar dynamic power system is the solar receiver/thermal energy storage (TES) subsystem. Receiver development was conducted by NASA in the late 1960's and since then a very limited amount of work has been done in this area. Consequently the state of the art (SOA) receivers designed for the IOC space station are large and massive. The objective of the Advanced Heat Receiver Conceptual Design Study is to conceive and analyze advanced high temperature solar dynamic Brayton and Stirling receivers. The goal is to generate innovative receiver concepts that are half of the mass, smaller, and more efficient than the SOA. It is also necessary that these innovative receivers offer ease of manufacturing, less structural complexity and fewer thermal stress problems. Advanced Brayton and Stirling receiver storage units are proposed and analyzed in this study which can potentially meet these goals

    Luminescent solar concentrators. 2: Experimental and theoretical analysis of their possible efficiencies

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    Experimental techniques are developed to determine the applicability of a particular luminescing center for use in a luminescent solar concentrator (LSC). The relevant steady-state characteristics of eighteen common organic laser dyes are given. The relative spectral homogeneity of such dyes are shown to depend upon the surrounding material using narrowband laser excitation. We developed three independent techniques for measuring self-absorption rates; these are time-resolved emission, steady-state polarization anisotropy, and spectral convolution. Preliminary dye degradation and prototype efficiency measurements are included. Finally, we give simple relationships relating the efficiency and gain of an LSC to key spectroscopic parameters of its constituents

    Exvangelical: Why Millennials and Generation Z are Leaving the Constraints of White Evangelicalism

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    This research presents the argument that Millennials and Generation Z are not leaving the church; they are reconstructing their faith and distancing themselves from fundamentalism. When exploring the history of evangelicalism, church history, and generational distinctives, one is given the opportunity to develop a deeper understanding of generational dynamics in regard to faith, theology, and praxis. Chapter 1 explores the various distinctions and biases that encompass each generation. It also provides background for how generational influence shaped the narrative of the church, faith, and purpose. Chapter 2 tackles the generational shift in ecclesiology and gives readers a glimpse into the torrid past of Christian history. It also highlights some of the major historical events that shaped today’s perception of the church. Chapter 3 explores the dynamics of generational disconnect and looks at the history of conservative evangelicalism and the influencers who shaped the movement. This section also provides a detailed history of Dwight L. Moody’s influence on evangelicalism, including his theory of Dispensational Premillennialism. Chapter 4 explores the parallels between this new form of evangelicalism and the dissonance of Millennials and Generation Z. It also explores how evangelicalism became an entity characterized by sexism, racism, homophobia, and nationalism, instead of the foundational tenets of Christianity. Chapter 5 builds upon this generational reaction and explores the variety of ways that Millennials and Generation Z differ from Baby Boomers and Generation X. It specifically looks at the varied generational differences regarding family, leadership, success, theology, and praxis. Chapter 6 provides pastors and leaders with hope, resources, and formulaic ideologies that are implementable by most pastors and leaders regardless of geographical or denominational context. It also further defines diversity, inclusion, and equality within the context of generational understanding and implementation. Each of these traits are presented in the form of leadership examples

    Bussing About Canada

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    Fostering Students’ Sense of Belonging and Inclusion Through Community Involvement

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    This paper examines resource availability and allocation within schools and, through its investigation, identifies the greater community system as an underutilized source of talent. To better understand and use the greater community as a resource, this paper will consider the impact on students’ social-emotional growth. More specifically, how does community involvement in the classroom, specifically through the use of community-based learning practices, impact a student’s sense of belonging and inclusion? Community-based learning practices are rooted in authentic learning experiences where students collaborate with community partners to address community needs and objectives. Students, educators, and members of the greater community all benefit from the application of these practices. To assist in this initiative, the accompanying project takes the form of a professional development opportunity that will encourage and enable practicing educators and their administrators in implementing community-based learning practices. As educators are better equipped to identify and utilize community resources in their classroom practices, students can develop their skills as actively engaged members of current and future communitie
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