Progressive fracture of fiber composites

Refined models and procedures are described for determining progressive composite fracture in graphite/epoxy angleplied laminates. Lewis Research Center capabilities are utilized including the Real Time Ultrasonic C Scan (RUSCAN) experimental facility and the Composite Durability Structural Analysis (CODSTRAN) computer code. The CODSTRAN computer code is used to predict the fracture progression based on composite mechanics, finite element stress analysis, and fracture criteria modules. The RUSCAN facility, CODSTRAN computer code, and scanning electron microscope are used to determine durability and identify failure mechanisms in graphite/epoxy composites

1987 Beef Cattle Report

Eighty grain samples of various moisture levels were collected throughout the 1985 harvest season and analyzed for moisture by either moisture tester, microwave oven, or forced-air oven. The moisture tester was not as accurate as the forced-air oven when moisture level exceeded 19%. Microwave drying was as accurate as forced-air oven drying but was more variable between readings of the same sample

Process for making a noble metal on tin oxide catalyst

A quantity of reagent grade tin metal or compound, chloride-free, and high-surface-area silica spheres are placed in deionized water, followed by deaerating the mixture by boiling and adding an oxidizing agent, such as nitric acid. The nitric acid oxidizes the tin to metastannic acid which coats the spheres because the acid is absorbed on the substrate. The metastannic acid becomes tin oxide upon drying and calcining. The tin-oxide coated silica spheres are then placed in water and boiled. A chloride-free precious metal compound in aqueous solution is then added to the mixture containing the spheres, and the precious metal compound is reduced to a precious metal by use of a suitable reducing agent such as formic acid. Very beneficial results were obtained using the precious metal compound tetraammine platinum(II) hydroxide

Notes on the Mites of an Iowa Cave

An investigation was made of some of the environmental factors which are most important in determining the distribution of Acarina in caves. Because of the relative stability of the environment, Bogus Cave, Jones County, Iowa, was selected for the study. A moistened camel\u27s hair brush, an aspirator, and the flotation method were used to collect specimens. Three families of mites (Eupodidae, Ascaidae, and Belbidae) were found; none were troglobites. The data indicate that the mites in Bogus Cave are limited to areas of constant humidity and temperature, a good organic soil cover, relatively small soil particles (100μ to 150μ), and a minimum temperature above 42° F. In addition, it appears that the populations are mutually exclusive, and that one species cannot readily invade the territory already occupied by another species

Welcome

The University of Nebraska is pleased to serve as a co-host for this 10th Great Plains Wildlife Damage Control Workshop. We congratulate the planning committee for arranging an excellent program that covers a wide range of important issues and problems relative to wildlife damage management. During the past three years, the University of Nebraska Institute of Agriculture and Natural Resources has been actively involved in an intensive strategic planning process and this workshop is symbolic of several of our goals. First of all, we are relying on developing new linkages to better serve our clientele and fulfill our role and mission. This involves working with other institutions, agencies and the general public. This workshop is a result of a joint effort involving many groups and relies on the close cooperation and coordination among all entities to address priority problems. We also recognize that many of the issues facing us are complex and involve the inputs of several disciplines and groups. I am particularly pleased to see the wide range of presenters and participants involved in this workshop

Sustainable Commerce: Public Health Law and Environmental Law Provide Tools for Industry and Government to Construct Globally-Competitive Green Economies

This Article examines the legal mechanics underlying the sustainable commerce private/public governance paradigm whereby industry and government create sustainable commerce initiatives which coordinately grow local/state economies and employment, enhance local/state competitiveness in the global marketplace, and at the same time substantially improve local/state public health and environmental infrastructure. This includes an examination of the legal foundation for state/local sustainable commerce initiatives drawn from existing public health and environmental law and a review of two specific local/state sustainable commerce initiatives which have followed this paradigm with impressive results over a two-to-four year timeframe. Part II of this Article examines how public health and environmental law bases provide legal authority and policy rationales upon which to construct local/state sustainable commerce initiatives. Part III examines how a small Georgia town, Ringgold—the county seat for Catoosa County, GA—recently implemented sustainable commerce initiatives, allowing this North Georgia community to actively participate in market-based low-carbon sustainable commerce initiatives which not only address legacy environmental and public health issues, but which create economic opportunities into the future. Part IV outlines how global industry now fulfills its own sustainable commerce programs requiring U.S. manufacturers to meet detailed environmental and public health metrics for both corporate operations and product life cycle analysis as a condition of purchasing their goods and services. Part IV also details how one U.S. manufacturer, the Murray Corporation, created management systems based on the ISO standard series to address customer environmental and public health metrics for their operations and products in order to qualify as an approved vendor for sales overseas. Part V then concludes with a continued discussion of ISO standard-based management systems as a key legal and regulatory tool by which local government and industry can coordinately construct sustainable commerce initiatives which ensure government and industry will successfully attain defined sustainable commerce goals. The example is drawn from the experience of the U.S. public health system. This discussion includes a review of how ISO-based third party assurance systems complement existing common and statutory law to achieve aggressive sustainable commerce timelines and goals over the immediate future (2–4 year timeframe)

Practicum & Internship Coordinators’ Experiences amid COVID-19 Emergency Remote Teaching

Although recent literature addresses online pedagogy and online counselor education, few articles address the challenges faced by counselor educators during emergency remote teaching, an unplanned and unanticipated switch from in-person education to online education. To address this gap, we conducted a phenomenological study of the lived experiences of practicum and internship coordinators (N = 8) during the emergency remote teaching phase of the COVID-19 pandemic. Five themes emerged: (a) uncertainty, (b) adaptation to leadership, (c) changes to student experience, (d) personal support, and (e) readiness. Implications for counselor educators and supervisors are addressed