Institutional Graphics for the Trinity Montessori School

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Communications technology in the land grant university setting: a focus on computer-based innovations for information dissemination to external audiences

Various kinds of computer-based communications systems are being implemented on the campuses of land grant universities to assist in the task of communicating with external audiences. Systems within the information and publications office primarily involve computerized news transmission, typesetting, office management functions, and text processing and editing. Another type of system is the information utility, which provides a variety of services such as problem-solving and educational programs, general news information, electronic mail services, and computational assistance to end users, such as farmers or agri-businessmen. Twelve computer-based communications systems operating at eight land grant universities are analyzed in terms of five general areas of concern: standards and quality, technological limitations, man-machine interface, financial and economic considerations, and information proprietorship considerations;The findings reveal no serious problems in any of the areas but do point out some cautions that should be carefully monitored as these systems develop and operate. No great cost savings can be accrued with computerized news systems although they do save some keystroke operations within the communications office. These systems are justified more on the basis that they increase the likelihood of news release use by newspapers. In the cases examined, newspapers sought more news from the information office because electronic processing saved the newspaper considerable time compared to processing the traditional printed news release forms. A surprising discovery was that only in one instance was there capability in the information office to process text and edit electronically from the initial writing to the final product, thereby completely eliminating pencil and hard copy. Yet, this type of integrated operation is where considerable time and cost efficiencies could be achieved;With regard to the information utilities, there is concern about the quality of the software (programs) that are produced for such systems. Surprisingly, little peer review is practiced in the selection of such programs with final selection sometimes the responsibility of computer technicians rather than subject matter specialists or educators

Differential Canard deflection for generation of yawing moment on the X-31 with and without the vertical tail

The feasibility of augmenting the available yaw control power on the X-31 through differential deflection of the canard surfaces was studied as well as the possibility of using differential canard control to stabilize the X-31 with its vertical tail removed. Wind-tunnel tests and the results of departure criteria and linear analysis showed the destabilizing effect of the reduction of the vertical tail on the X-31. Wind-tunnel testing also showed that differential canard deflection was capable of generating yawing moments of roughly the same magnitude as the thrust vectoring vanes currently in place on the X-31 in the post-stall regime. Analysis showed that the X-31 has sufficient aileron roll control power that with the addition of differential canard as a yaw controller, the wind-axis roll accelerations will remain limited by yaw control authority. It was demonstrated, however, that pitch authority may actually limit the maximum roll rate which can be sustained. A drop model flight test demonstrated that coordinated, wind axis rolls could be performed with roll rates as high as 50 deg/sec (full scale equivalent) at 50 deg angle of attack. Another drop model test was conducted to assess the effect of vertical tail reduction, and an analysis of using differential canard deflection to stabilize the tailless X-31 was performed. The results of six-degree-of-freedom, non-linear simulation tests were correlated with the drop model flights. Simulation studies then showed that the tailless X-31 could be controlled at angles of attack at or above 20 deg using differential canard as the only yaw controller

Haplotype Analysis for Irish Ancestry

Forensic haplotype analysis of the male Y chromosome is currently used to establish the number of male donors in sexual assaults, the number of male bleeders in blood pattern analysis, and for ancestry correlation to genetic founder populations in biogeographic studies. In forensic laboratory applications, its primary use is for DNA profile generation with trace amounts of male DNA in the presence of excess female DNA (e.g. spermatozoa identification, male component of fingernail scrapings). Our study supports the potential use of the Y chromosome in a “dragnet” approach (most haplotypes are unique) similar to that described by Kayser in 2017 for solving a cold case sex assault and homicide in The Netherlands. Our study also researched the potential for the identification of an ancestral Irish genetic “footprint” linked to surname O’Brien and identified multiple founder group origins in Ireland and England as well as three samples with the Dal Riata (a Gaelic overkingdom) ancestral haplotype. This study indicates correlation to ancestral Irish ancestry by haplotype but not conclusively to the O’Brien surname

Arizona Grain Sorghum, Forage Sorghum, and Sudangrass Performance Tests 1968

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Structural optimization of 3D masonry buildings

In the design of buildings, structural analysis is traditionally performed after the aesthetic design has been determined and has little influence on the overall form. In contrast, this paper presents an approach to guide the form towards a shape that is more structurally sound. Our work is centered on the study of how variations of the geometry might improve structural stability. We define a new measure of structural soundness for masonry buildings as well as cables, and derive its closed-form derivative with respect to the displacement of all the vertices describing the geometry. We start with a gradient descent tool which displaces each vertex along the gradient. We then introduce displacement operators, imposing constraints such as the preservation of orientation or thickness; or setting additional objectives such as volume minimization.Shell Oil CompanyNatural Sciences and Engineering Research Council of Canada (PGS Program)Samsung Scholarship Foundatio

KINEMATIC ANALYSIS OF ELITE JAVELIN THROWERS

Research on various aspects of the throwing motion has indicated it to be a very complex movement (Atwater, 1979). Certain kinematic parameters appear t o be common determinants of successful performance regardless of the nature of the throwing task. Under ideal conditions (i.e., ignoring air resistance and the type of implement being thrown) the path, and hence distance thrown, is determined by the angle, height and velocity of release. Such an ideal analysis needs some modification for situations in which aerodynamics are considered. Since the release phase of the javelin throw encompasses these common throwing components as well as obvious aerodynamic influences, quantification of release characteristics which establish the initial conditions of f light is important

Enhancing Professionalism in Academic Agricultural Communications Programs: The Role of Accreditation

Enhancing professionalism in agricultural and applied communications has been an important topic of discussion among ACE members in recent years. Developing strategies to increase prestige and recognition of this specialized field are of particular interest to ACE members involved in administering academic programs in agricultural communications and agricultural journalism. One of the measures under consideration to bolster recognition is the development of accreditation standards and procedures that would allow for “certification” of academic programs. Among the often-cited advantages of accreditation are increased uniformity of curricula and the development of formal quality- control mechanisms. However, if accreditation standards and procedures are to be implemented successfully, more information is needed on the overall accreditation process, how it has been used in other disciplines, and what factors should be considered in applying it to agricultural communications. This paper attempts to fill this void by providing an overview of the accreditation process and a review of the accreditation literature to identify important issues in developing and implementing such programs. In addition, results from an electronic mail survey of academic agricultural communications program faculty are provided to document their perceptions of the need and role of accreditation in this field. The authors argue that development of a structured accreditation process is not in the best interest of agricultural communications at this time. The paper concludes with a set of discussion items and recommendations for agricultural communications faculty to consider in weighing for themselves the merits of national accreditation standards

Reconversion of Parahydrogen Gas in Surfactant-Coated Glass NMR Tubes

The application of parahydrogen gas to enhance the magnetic resonance signals of a diversity of chemical species has increased substantially in the last decade. Parahydrogen is prepared by lowering the temperature of hydrogen gas in the presence of a catalyst; this enriches the para spin isomer beyond its normal abundance of 25% at thermal equilibrium. Indeed, parahydrogen fractions that approach unity can be attained at sufficiently low temperatures. Once enriched, the gas will revert to its normal isomeric ratio over the course of hours or days, depending on the surface chemistry of the storage container. Although parahydrogen enjoys long lifetimes when stored in aluminum cylinders, the reconversion rate is significantly faster in glass containers due to the prevalence of paramagnetic impurities that are present within the glass. This accelerated reconversion is especially relevant for nuclear magnetic resonance (NMR) applications due to the use of glass sample tubes. The work presented here investigates how the parahydrogen reconversion rate is affected by surfactant coatings on the inside surface of valved borosilicate glass NMR sample tubes. Raman spectroscopy was used to monitor changes to the ratio of the (J: 0 → 2) vs. (J: 1 → 3) transitions that are indicative of the para and ortho spin isomers, respectively. Nine different silane and siloxane-based surfactants of varying size and branching structures were examined, and most increased the parahydrogen reconversion time by 1.5×–2× compared with equivalent sample tubes that were not treated with surfactant. This includes expanding the pH2 reconversion time from 280 min in a control sample to 625 min when the same tube is coated with (3-Glycidoxypropyl)trimethoxysilane