Graphite ionization vacuum gauge

Triode gauge with electron source, electron collector, and positive ion collector made from either graphite or carbon material extends low-pressure ranges of existing gauges by changing only materials used in construction. Advantages of graphite gauge stem from physical properties of graphite (or carbon)

Development of UHF measurements

Collector gauge and orbitron gauge for ultrahigh vacuum measurement

Implementing Systems Engineering on a CERCLA Project

The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), enacted in 1980, provides a regulatory and legal mechanism to reduce risks from prior disposal of hazardous and toxic chemicals. Regulations, Standards, and Guidelines have been published to further define the CERCLA Process. The OU 7-10 Staged Interim Action Project at the Idaho National Engineering and Environmental Laboratory (INEEL) is a CERCLA project working to remediate the pre-1970 disposal pit in which transuranic materials have been disposed. This paper analyzes the CERCLA process from a systems engineering perspective and describes how systems engineering is implemented on this project

Survey of Whole House Programs in Midwestern Climates

Existing single family whole home energy efficiency programs in cold weather climates, focused on the Midwest, were analyzed in detail to understand program design, including requirements, processes, incentives and outcomes, focusing on savings and participation. The report presents information about specific programs, aggregated program trends and observations, and recommendations for future cold weather climate whole home program design and implementation. This study makes several recommendations to whole home program designers and implementers on improving the cost-effectiveness and reach of whole home programs

A Contrast/Comparison of Needs Assessment and Curricular Evaluation for Management Careers in Hostelries/Travel, Private Sport Clubs, and Agencies

The purposes of this study were to: (a) assess the needs for sport management positions; and (b) obtain the evaluation of sport management programs/curricula by management personnel from different business perspectives, i.e., hostelries/travel, private sport clubs, and agencies. According to curriculum theorists, there has been an increase in the demand for sport management positions, but there is a real lack of and need for empirical evidence upon which to establish the theoretical basis and content for programs/curricula to meet this demand. Thus, the significance of this research is that it provides a basis for planning utilizing the empirical evidence of the needs assessment and program evaluation by/for professional sport managers in hostelries/travel, private sport clubs, and agencies

Mechanical Instabilities of Biological Tubes

We study theoretically the shapes of biological tubes affected by various pathologies. When epithelial cells grow at an uncontrolled rate, the negative tension produced by their division provokes a buckling instability. Several shapes are investigated : varicose, enlarged, sinusoidal or sausage-like, all of which are found in pathologies of tracheal, renal tubes or arteries. The final shape depends crucially on the mechanical parameters of the tissues : Young modulus, wall-to-lumen ratio, homeostatic pressure. We argue that since tissues must be in quasistatic mechanical equilibrium, abnormal shapes convey information as to what causes the pathology. We calculate a phase diagram of tubular instabilities which could be a helpful guide for investigating the underlying genetic regulation

The Impact of Body Image Preoccupation on College Adjustment

Faculty Research Day 2018: Graduate Student Poster Honorable MentionThe physical and psychological adjustment to college is a often a disorienting time for students. Upon entering college, students are met with a new set of societal, personal, and academic expectations that decide the degree to which they are able to adapt to their new lives (Tinto, 1993). Given the taxing mental demands associated with the college transition, as well as the increasing prevalence of mental illnesses among college students (Duarte, Ferreira, Trindade, & Pinto-Gouveia, 2015; Hunt & Eisenberg, 2010), extensive research has examined the many psychological components that can effect students’ college experiences. Yet, despite the extensive literatures centering around body image preoccupation and college students’ psychological health/adjustment to college, there have been no studies that assess body image alongside college adjustment. The present study aims to fill this gap in the literature by examining the association of body image preoccupation and students’ adjustment to college

Alternatives to Reduce Corrosion of Carbon Steel Storage Drums

The major tasks of this research were (a) pollution prevention opportunity assessments on the overpacking operations for failed or corroded drums, (b) research on existing container corrosion data, (c) investigation of the storage environment of the new Resource Conservation and Recovery Act Type II storage modules, (d) identification of waste streams that demonstrate deleterious corrosion affects on drum storage life, and (e) corrosion test cell program development. Twenty-one waste streams from five US Department of Energy (DOE) sites within the DOE Complex were identified to demonstrate a deleterious effect to steel storage drums. The major components of these waste streams include acids, salts, and solvent liquids, sludges, and still bottoms. The solvent-based waste streams typically had the shortest time to failure: 0.5 to 2 years. The results of this research support the position that pollution prevention evaluations at the front end of a project or process will reduce pollution on the back end

Rationale and Development of a Security Assurance Index with Application toward the Development of a World Risk Index

Assurance categories were previously developed to support the Department of Homeland Security’s efforts in the mitigation of Cyber Control System events. Defined according to the risk of life and economic loss, the minimum range is designated by policy, whereas the maximum limit seems to be constrained only by limits and interdependencies of the event. Use of this life / assets scale has proven to be helpful in managing risk due to the scale's ease of use, communication, and understanding. Suggestions have been made that this scale could be applied to all events of terror, disaster, and calamity of an international scale, with equally good results. This paper presents the history of some existing scales of disaster and assurance, the rationale behind the development of the original Security Assurance Index, and our proposed scale of disaster and calamity as a World Risk Index

Quantitative Cyber Risk Reduction Estimation Methodology for a Small Scada Control System

We propose a new methodology for obtaining a quick quantitative measurement of the risk reduction achieved when a control system is modified with the intent to improve cyber security defense against external attackers. The proposed methodology employs a directed graph called a compromise graph, where the nodes represent stages of a potential attack and the edges represent the expected time-to-compromise for differing attacker skill levels. Time-to-compromise is modeled as a function of known vulnerabilities and attacker skill level. The methodology was used to calculate risk reduction estimates for a specific SCADA system and for a specific set of control system security remedial actions. Despite an 86% reduction in the total number of vulnerabilities, the estimated time-to-compromise was increased only by about 3 to 30% depending on target and attacker skill level