394 research outputs found

    Nonfarm Employment Change In Iowa from 1987 to 1997

    Get PDF
    The pace and patterns of growth in Iowa's economy have produced distinct groups of winners and losers during the past decade. Drastic differences are evident in both the geographic location and industrial mix of employment growth. As we begin a new decade, it is useful to review recent changes in the Iowa economy, identify its strengths, and assess opportunities for future growth. This report describes the nature of nonfarm employment and earnings growth from 1987 to 1997 and discusses possible implications for Iowa's future economy. The report covers statewide changes in total nonfarm employment and employment by major industrial division. In addition, the report describes the kinds of employment growth experienced by Iowa's metropolitan, urban, and rural counties. This report was prepared for use by state and local decision-makers, community planners, economic development groups, and other organizations and individuals with an interest in Iowa's changing economy.

    Driveline for the USU 2006 Mini Baja

    Get PDF
    The Mini Baja project is part of an intercollegiate engineering design competition sponsored by SAE. For this competition senior engineering students at USU design and build a small off-road racecar. The design of the car is broken up into several different subassemblies. The driveline subassembly is responsible for transmitting the power from the transmission to the rear wheels. This is accomplished using several different components that have all been analyzed and designed. The completed driveline is able to accommodate sixteen inches of suspension travel, is lightweight, and was inexpensive to build. The driveline along with the rest of the car will be thoroughly tested at the final race in Portland, Oregon, during the second week of May

    Investing in Creativity: A Study of the Support Structure for U.S. Artists

    Get PDF
    Documents and analyzes the environment of support for individual artists. Provides a framework for analysis of various dimensions of the support structure, nationally and in specific sites across the U.S. Includes support programs and policy initiatives

    Low Power, Low Noise Circuit for Biological Signal Recording

    Get PDF
    Implantable devices are ideal for recording biological signals in animal models as they have minimal effect on the animal’s normal behavior during observation. The creation of the circuitry for an implantable device has several restrictions including size, power consumption, and noise reduction. These factors compete against each other, making it necessary to carefully optimize circuit components for a given application. This study evaluates the design of a four-channel analog front end circuit board to record cardiac, neural, and respiratory biological signals. Through a critical analysis of component specifications for the circuit’s components and an evaluation of the circuits’ power and noise performance, the ideal analog front end for the implantable biological recording device was designed. The combination using components AD8235 and OPA2348 decreased noise, power consumption, and size by 43%, 58%, and 57% respectively without significantly impacting other metrics. This combination was chosen to best improve the performance of the implantable device

    A Systems Engineering Tool for Small Satellite Design

    Get PDF
    The growing popularity of small satellites for applications of all kinds has lead to a marked increase in the number of requests from customers of The Aerospace Corporation for studies involving small satellites. The existing design tools used by the Corporation for concept evaluation of large spacecraft have, in many cases, proven inadequate for these small spacecraft studies. As a result, Aerospace is developing a systems engineering tool to support the conceptual design of small satellites. The Aerospace Corporation’s small satellite systems engineering tool utilizes a spreadsheet-based approach to efficiently track information regarding the mass, power, and volume of the satellite subsystems. This subsystem information is derived through a variety of means, including analytical relationships, iterative solvers, and databases of components appropriate for small satellites. Physics based models for such factors as solar illumination and external torques have been incorporated into the tool to aid in the analysis of the design. In addition to data tracking, the spreadsheet approach used makes it easier for a concurrent engineering methodology to be applied to the design process. This means the effects of a change in one subsystem are immediately propagated to the other subsystems, and system-level effects are more easily identified. The end result is a tool that facilitates rapid systems-level concept evaluation and trade-space exploration in support of the small satellite design process. This paper describes The Aerospace Corporation’s small satellite systems engineering tool. The approach underlying the tool, as well as an overview of the implementation, relationships between the subsystems, and the flow of information are presented

    DISTRIBUTION OF GRAY WOLVES IN RESPONSE TO HABITAT AND HUMAN PRESENCE IN THE ABSAROKA-BEARTOOTH WILDERNESS, MONTANA

    Get PDF
    Since wolves (Canis lupus) were reintroduced into Yellowstone National Park (YNP) in 1995 and 1996, the population has increased and expanded into adjacent areas. In this study, we documented the distribution of wolves in relation to habitat and human presence in the Absaroka-Beartooth Wilderness (ABW) in Montana during the summers of 2005 and 2006, prior to the onset of wolf hunting in 2009, by observing tracks and scat along USDA Forest Service (USFS) trails. Our results indicated that wolves in the ABW 1)  were primarily located near the boundary of YNP, 2) did not prefer forested habitats when traveling on trails, 3) did not avoid USFS cabins or outfitter camps, and 4) did not differentiate between permanent cabins and temporary camps

    Guest Artist Recital Series: Andrea Casarrubios, Cello; Cora Swenson Lee, Cello; Daniel Baer, Piano; November 2, 2023

    Get PDF
    Kemp Recital HallNovember 2, 2023Thursday Evening7:30 p.m

    Fishery Resource of the Upper Mississippi River and Relationship to Stream Discharge

    Get PDF
    ABSTRACT-Fish population data collected through the Northern States Power Company monitoring program near its plants at Monticello and Becker, Minnesota were analyzed to describe species diversity, changes in recreational fishing, fishing success, and the influence of stream discharge on smallmouth bass year-class success and abundance. The work is part of a more extensive effort to develop a model applicable in managing the upper Mississippi River to meet the growing needs of recreation, agriculture, communities, and industry. Analysis of these data shows 48 species to be present and that smallmouth bass, Micropterus dolomieu~ is the most important game species in the growing recreational fishery. Comparison of smallmouth bass year-class strength estimates with stream discharge for the period 1973-1987, indicates strong year-classes develop during years characterized by low spring and summer discharge

    Predicting postoperative day 1 hematocrit levels after uncomplicated hysterectomy

    Full text link
    ObjectiveTo develop a model for predicting postoperative hematocrit levels after uncomplicated hysterectomy.MethodsIn a retrospective study, data were analyzed from the Michigan Surgery Quality Collaborative for non‐emergent hysterectomies performed for benign indications among women aged at least 18 years between January 1, 2012, and April 4, 2014. Linear mixed models were used for univariate and multivariate analyses.ResultsThe model was developed with data from 4747 hysterectomies and validated on 1184 cases. In the mixed multivariate analysis, higher postoperative day 1 (POD1) hematocrit levels were associated with higher weight (B = 0.03222, P < 0.001), higher preoperative hematocrit (B = 0.6587, P < 0.001), and non‐vaginal hysterectomy (B = 0.2815, P = 0.0055). Lower POD1 hematocrit was associated with higher preoperative platelet count (B = − 0.00457, P < 0.001), greater estimated blood loss (B = − 0.00652, P < 0.001), and larger intraoperative crystalloid volume (B = − 0.3303, P < 0.001). The final model predicted POD1 hematocrit within 4% points of the actual value for 91.7% of cases in the validation set.ConclusionUse of the model after uncomplicated hysterectomy might help to support the practice of selectively conducting postoperative hematocrit tests after hysterectomy in a clinically thoughtful and cost‐effective manner.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135182/1/ijgo19.pd
    • 

    corecore