Contents
Academic literature on the topic 'Michigan. Dept. of Aeronautics'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Michigan. Dept. of Aeronautics.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Michigan. Dept. of Aeronautics"
1
Kelly, John F. "Curriculum Adjustments at Michigan State." HortScience 32, no. 3 (1997): 554A—554. http://dx.doi.org/10.21273/hortsci.32.3.554a.
Full textAbstract:
At Michigan State Univ., the Dept. of Horticulture curriculum has been restructured simultaneously both toward and away from specialization. The traditional commodity orientation has been eliminated in the main track Horticulture option. At the same time, a new highly structured Landscape Design–Construction and Management option has been created. Both of these changes were made in response to industry needs. Additional optional Specializations in Environmental Studies, Agribusiness, and Biotechnology also are available. These require students to take 18–20 credits from specified course lists. These credits may be part of the required courses for the Horticulture major, or may be in addition to that requirement.
2
Herner, Robert C. "The Horticulture Curriculum at Michigan State University." HortScience 31, no. 4 (1996): 694a—694. http://dx.doi.org/10.21273/hortsci.31.4.694a.
Full textAbstract:
The Dept. of Horticulture changed its curriculum prior to 1992 to conform to the change from the quarter to the semester system that took place in Fall 1992. As a result of changes in our student body, their interests, and new accounting procedures for determining productivity in our college and the university, another revamping of our curriculum was accomplished beginning in Fall 1992 and our curriculum was changed again to take effect in Fall 1994. Our students now have a choice of a Landscape, Design, Construction Management option or Horticulture. Students all take a two-semester sequence of an Introductory Horticulture course—they must choose a production and management course from three out of four commodity areas (floriculture, landscape, pomology, or vegetable crops), and three out of five upper-division courses in applied physiology or genetics. They must also take a course in Greenhouse Structures and Management and a senior-level capstone course in Horticutural Management. This curriculum has broadened our students' exposure to horticulture to a much greater degree than was present in our old curriculum. In addition, they have about 20–21 credits (out of 120) for electives.
3
Jones*, Grant, Bert Cregg, and Katrina Schneller. "True Firs (Abies sp.): New Conifers for the Midwestern Landscape." HortScience 39, no. 4 (2004): 897C—897. http://dx.doi.org/10.21273/hortsci.39.4.897c.
Full textAbstract:
The genus Abies is a member of the family Pinaceae and consists of approximately 55 species found mainly in upper latitudes or higher elevations in the northern hemisphere. Firs generally prefer cool, well-drained sites with acidic soil. Fir trees are occasionally used as landscape trees but are more commonly grown as Christmas trees. Recently, the Michigan State Univ. Forestry Dept. and the Michigan Christmas tree industry initiated a field test of exotic firs (Abies sp.) for potential use as Christmas trees. In the present study we expanded the evaluation of these exotic fir species to include their suitability as landscape trees and to characterize their tolerance to various environmental stresses. We compared foliar nutrition, gas exchange, chlorophyll fluorescence, and shoot morphology of 23 Abies species and hybrids planted at three horticultural research stations in Michigan. Foliar nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), sulfur (S), boron (B), zinc (Zn), and copper (Cu) were correlated (P < 0.05) with soil pH. Species and hybrids varied (P <0.05) in maximum photosynthetic rate, water use efficiency, chlorophyll fluorescence, and the ratio of total needle area to projected needle area. We will discuss the significance of these traits in relation to selecting trees adapted for use in the Midwestern landscape.
4
Urciuoli, Bonnie. "Jennifer Dickinson, James Herron, Laura Kunreuther, Mandana Limbert, Ellen Moodie, & Penelope Papailias (eds.), Linguistic form and social action. (Michigan discussions in anthropology, 13.) Ann Arbor: Anthropology Dept., University of Michigan, 1998. Pp. 283." Language in Society 29, no. 4 (2000): 583–86. http://dx.doi.org/10.1017/s0047404500214048.
Full textAbstract:
As noted in this volume's Introduction by two of the editors, Jennifer Dickinson and Mandana Limbert, their collection displays work by students, alumni, and faculty of the University of Michigan Linguistic Anthropology Program, founded in 1991. The program's nature and development is evident in the coherence of the contents of the book, which consistently address the nature of the connections of immediate, ethnographically detailed (micro-level) deployment of linguistic form with the (macro-level) processes, institutions, and structures that frame such deployment as linguistic action. The essays generally fall into three categories: those focusing on a single speech event, those dealing with linguistic ideology, and those examining the ways in which language structure influences the form taken by social action. All these are framed by contemporary work on participation frameworks, on contextual structure and process, on dialogic emergence of meaning, on indexicality, and on linguistic ideology as cultural process played out in linguistic action. Stressing the emergent nature of structures and the continual, complex processes of indexical creativity, the authors develop in various and connected ways the linguistic ecology frame, as initiated by Einar Haugen and developed in much contemporary work in linguistic anthropology.
5
Howey, Meghan C. L., Michael Palace, Crystal H. McMichael, and Bobby Braswell. "Moderate-Resolution Remote Sensing and Geospatial Analyses of Microclimates, Mounds, and Maize in the Northern Great Lakes." Advances in Archaeological Practice 2, no. 3 (2014): 195–207. http://dx.doi.org/10.7183/2326-3768.2.3.195.
Full textAbstract:
AbstractRemote sensing applications are increasingly common in archaeology but they often focus on high resolution imagery and direct archaeological site detection. Moderate spatial resolution remote sensing instruments, which have (near) daily repeat intervals, but contain less detailed spectral and spatial information, have been employed much less frequently in archaeology. However, moderate remote sensing data offer distinct advantages for archaeological research as they can be used to relate archaeological, ecological, and climactic data at vast spatial scales. To show this potential, we use moderate remote sensing data to examine the impact of landscape heterogeneity on the spread of indigenous maize horticulture in the northern Great Lakes during Late Precontact (ca. AD 1200-1600). Analyzing National Aeronautics and Space Administration (NASA) Moderate Resolution Imaging Spectroradiometer (MODIS) imagery, we identify differences in freeze/thaw cycles across inland lakes in Michigan, showing that some large inland lakes produce a microclimatic amelioration, possibly extending the growing season for prehistoric maize cultivation. Conducting geospatial analyses, we find that burial mounds and maize cultivation practices were associated preferentially with larger inland lakes with microclimates. We could not have found these dynamic interrelationships between microclimates, burial mounds, and maize cultivation if not for both the frequent temporal imaging and large spatial coverage provided by moderate resolution remote sensing imagery.
6
Philip L. Hertzler. "Rhodamine Fluorescence After 15-year Storage in Methyl Salicylate." Microscopy Today 14, no. 2 (2006): 48. http://dx.doi.org/10.1017/s1551929500055383.
Full textAbstract:
Fading of fluorochrome is a significant limitation to fluorescence microscopy. Several anti-fade agents, e.g. n-propyl gallate, are commonly used for glycerol-based mounting media (Longin et al., 1993; Ono et al., 2001). Samples mounted in glycerol must be kept at -20°C for long-term storage to prevent bacterial degradation. In contrast, fluorescent samples cleared and mounted in organic media can be stored indefinitely at room temperature.Methyl salicylate or oil of wintergreen is an excellent clearing agent (refractive index = 1.53), which works well with a variety of fluorochromes. It has a pleasant aroma but is somewhat difficult to work with since it remains liquid after mounting. It was previously reported that shrimp embryos labeled with tubulin antibody and rhodamine-conjugated secondary antibody maintained their fluorescence after six months (Summers et al. 1993). These same samples, stained in November, 1990 and imaged by confocal microscopy for publication in Hertzler and Clark (1992), are still fluorescent after continuous storage in methyl salicylate at room temperature in the dark (Figure 1). The images of 62-cell stage shrimp embryos taken from these 1990 samples were collected with an Olympus Fluoview 300 laser scanning confocal microscope in January, 2006 in the Dept. of Biology, Central Michigan University.
7
Hummer, Kim E. "039 Hardy Actinidia Genetic Resources at the Corvallis Repository." HortScience 35, no. 3 (2000): 395A—395. http://dx.doi.org/10.21273/hortsci.35.3.395a.
Full textAbstract:
In 1999, the National Clonal Germplasm Repository at Corvallis, Ore., was assigned to preserve the hardy Actinidia Lindl. resources for the U.S. Dept. of Agriculture, Agricultural Research Service, National Plant Germplasm System. The fuzzy kiwifruit [A. deliciosa (A. Chev) C. F. Liang et A. R. Furguson] and other less cold-hardy Actinidia species, remain at the Davis Repository. The hardy Actinidia, commonly called Chinese gooseberries or hardy kiwifruit, encompass two taxonomic sections, Leiocarpae and Maculatae, and include about 13 described species. These perennial vines are natives of Asia and have been developed and cultivated in Lushan, Wuhan, and Guilin, China; Motueka, New Zealand; Kagawa Prefecture, Japan; Vladivostok, Russia; and California, Maryland, Michigan, Minnesota, New Hampshire, and New York in the United States. Thus far, the Corvallis Repository has established representatives of six species, A. arguta (Siebold & Zucc.) Planch. Ex Miq., A. callosa Lindl., A. kolomikta (Maxim.&Rupr.) Maxim, A. melanandra Franch., A. polygama (Siebold & Zucc.) Maxim., A. purpurea Rehder and 60 cultivars. These clones will be preserved as potted plants under screen. They will also be fruited and evaluated as trellised plants in the field. The repository plans to expand the species diversity of the collections. Plant requests for dormant scionwood or spring softwood cuttings are available by contacting the Corvallis Repository Curator.
8
Carreno-Luengo, Hugo, Juan A. Crespo, Ruzbeh Akbar, et al. "The CYGNSS Mission: On-Going Science Team Investigations." Remote Sensing 13, no. 9 (2021): 1814. http://dx.doi.org/10.3390/rs13091814.
Full textAbstract:
In 2012, the National Aeronautics and Space Administration (NASA) selected the CYclone Global Navigation Satellite System (CYGNSS) mission coordinated by the University of Michigan (UM) as a low-cost and high-science Earth Venture Mission. The CYGNSS mission was originally proposed for ocean surface wind speed estimation over Tropical Cyclones (TCs) using Earth-reflected Global Positioning System (GPS) signals, as signals of opportunity. The orbital configuration of each CYGNSS satellite is a circular Low Earth Orbit (LEO) with an altitude ~520 km and an inclination angle of ~35°. Each single Delay Doppler Mapping Instrument (DDMI) aboard the eight CYGNSS microsatellites collects forward scattered signals along four specular directions (incidence angle of the incident wave equals incidence angle of the reflected wave) corresponding to four different transmitting GPS spacecrafts, simultaneously. As such, CYGNSS allows one to sample the Earth’s surface along 32 tracks simultaneously, within a wide range of the satellites’ elevation angles over tropical latitudes. Following the Earth Science Division 2020 Senior Review, NASA announced recently it is extending the CYGNSS mission through 30 September 2023. The extended CYGNSS mission phase is focused on both ocean and land surface scientific investigations. In addition to ocean surface wind speed estimation, CYGNSS has also shown a significant ability to retrieve several geophysical parameters over land surfaces, such as Soil Moisture Content (SMC), Above Ground Biomass (AGB), and surface water extent. The on-going science team investigations are presented in this article.
9
London, Jason B., Ted Whitwell, and R. T. Fernandez. "149 An Overview of the Clemson University/Carolina Nurseries Research Partnership." HortScience 34, no. 3 (1999): 467D—467. http://dx.doi.org/10.21273/hortsci.34.3.467d.
Full textAbstract:
In 1993, Carolina Nurseries and the Dept. of Horticulture at Clemson Univ. entered into a partnership for a research and development program to solve short- and long-term production problems in the ornamental nursery industry. Carolina Nurseries, located near Charleston, S.C., is a 110-ha commercial container-grown landscape plant nursery that sells >12 million units yearly. Research is conducted on site in a specially designed area that provides nursery conditions and control of other variables, including water and pesticide applications. An on-site graduate student works cooperatively with faculty on campus and manages the research area, collects data, maintains the projects using standard nursery practices, interacts with Carolina Nurseries personnel, and initiates needed studies. Over the past 6 years, research diversity increased with cooperative efforts from faculty in the Depts. of Entomology, Pathology, and Agricultural Engineering. In addition, cooperative studies with faculty members with Univ. of Georgia, Michigan State Univ., and North Carolina State Univ. have been completed. Research results were presented to the nursery industry at research update meetings at the research area site. Approximately 200 attendees from commercial nurseries and horticulture-related companies in surrounding states attended the 1998 research update. Surveys collected at research updates are helpful in tailoring research to the specific needs of the nursery industry, and are the basis for some of the current research projects. Research results are also in published in the Southern Nursery Association Research Proceedings, Journal of Environmental Horticulture, and The South Carolina Nurseryman Newsletter.
10
Tartaglione, Immacolata, Baba PD Inusa, Raffaella Colombatti, et al. "History of Asthma is Associated with Albuminuria within an International Pediatric Cohort of Sickle Cell Disease Patients: A Casire Group Analysis." Blood 128, no. 22 (2016): 3668. http://dx.doi.org/10.1182/blood.v128.22.3668.3668.
Full textAbstract:
Abstract Background: Renal disease is a common end organ complication of sickle cell disease(SCD). Risk factors of sickle cell nephropathy include age, genotype, and anemia. We have investigated and discovered Lower Hemoglobin Oxygen Saturation levels associated with microalbuminuria. To further investigate this, we investigated a patient's history of asthma as a risk factor of renal disease. Asthma has been linked to increased mortality in adult and children with SCD from the National Cooperative SCD Study Group. In our ongoing International CASIRE Renal Cohort study, we investigated the clinical history of asthma and laboratory correlates of albuminuria and proteinuria as measured by Urine Protein/Creatinine and Urine Albumin/Creatinine . Methods: 538pediatric and adult SCD (3-59 y/o) patients were recruited at baseline from 6 Centers (USA: Univ of Michigan, Case Medical Center/Rainbow Babies, Albert Einstein-Montefiore Medical Center, Univ of Connecticut; Italy: Univ. of Padova, Univ of Naples;). Clinical history and laboratory studies, including Pain crisis patterns, SBP, DBP, BMI, CBC, Serum Crt, Urine ph, Urine SG were collected. For this report, we concentrated on patient's comorbidities and sickle cell medical history, specifically pain crisis patterns, acute chest history and asthma. Urine Microalbumin/Crt(UMA) (mg/gm) was obtained in 172 patients and we categorized patients into No Albuminuria: (No UMA)<30mg/gm and Albuminuria(UMAlbum): Microalbuminuria(MicroUMA) 30-299mg/gm and Macroalbuminuria (MacroUMA)>300mg/gm.334 subjects answered the question of medical history of asthma and of those 172 had Urine Microalbumin (UMA) levels. 75% of SCD-Asthma group (N=56) and 78% of SCD-NoAsthma group (N=204) had severe SCD (SS or SBeta Zero). Children (<18y/o) comprised 58% of the SCD-Asthma group (N=43) and 62% of the SCD-NoAsthma group (N=161). Mean age was 16 y/o in both SCD-Asthma and SCD-NoAsthma Groups. Results: No Albuminuria (NoUMAlbum) was reported in 80% (138/172) while Albuminuria(UMAlbum) was recorded in 20% (34/172) of the Cohort. Severe SCD pts represented 91% (n=33) of the Albuminuria pts. Adult UMA levels were higher (mean=61) than Peds UMA levels (mean=22) (p=0.025). Patients with History of Asthma had higher mean UMA levels ( 94 vs 21, p=0.005). Further, a history of asthma was associated with higher mean UMA levels (122 vs 23, p=0.003) within the Severe Genotype group (p=0.002), within all Pediatric SCD patients ( 60 vs 17, p=0.002), and within Severe Pediatric SCD patients ( 68 vs 19, p=0.004) (One Way Anova). Within the Medical history, BMI in the underweight range and a history of priapism were associated with elevated UMA levels. Conclusions: Age and Severe Genotype was associated with Albuminuria. A history of asthma was strongly associated with renal disease in Pediatric SCD patients in addition to a very strong association within Pediatric Severe Genotype patients. Optimal control of asthma could possibly mitigate the risk of kidney disease with SCD patients. A more in-dept analysis of patient's history of asthma would provide stronger evidence of these findings. Disclosures Asare: Intramural University of Ghana Research fund: Research Funding; Vanderbilt University Medical Center Gift Funds: Research Funding. Piccone:Novartis: Other: Speaker. Rivers:Acetylon: Research Funding.
Books on the topic "Michigan. Dept. of Aeronautics"
1
Michigan. Dept. of Corrections. Meeting the challenge of public safety: The Michigan Department of Corrections 1991-1996. The Dept., 1996.
2
General, Michigan Office of the Auditor. Follow-up report on automated information systems, Department of State and Department of Information Technology. Michigan Office of the Auditor General, 2007.
3
Special Committee to Study the Michigan Department of Corrections. The Michigan prison riots: Causal and contributory factors and suggested corrective action : report of the Special Committee to Study the Michigan Department of Corrections. The Committee, 2006.
4
Michigan. Dept. of Public Health. 1993 accomplishments of the Michigan Department of Public Health. The Department, 1994.
5
Francisco, Sánchez. Ten-year history and analysis of caseload and appropriations: Department of Civil Rights. Senate Fiscal Agency, 1990.
6
Investigations, United States Congress House Committee on Education and the Workforce Subcommittee on Oversight and. Department of Labor's denial of employment service funds to the states: Hearing before the Subcommittee on Oversight and Investigations of the Committee on Education and the Workforce, House of Representatives, One Hundred Fifth Congress, second session, hearing held in Washington, DC, March 25, 1998. U.S. G.P.O., 1999.
7
Michigan. Office of the Auditor General. Audit report: Performance audit of the sex offender registries, Michigan Department of State Police. Office of the Auditor General, 2005.
8
Cutler, Gail. Michigan's environmental protection and recreation bond programs: A three-year summary of Quality of Life bond appropriations. Senate Fiscal Agency, 1990.
9
D, Krisch A., Lin A. M. T, Roser T. 1956-, University of Michigan, and Brookhaven National Laboratory, eds. Increasing the AGS polarization: Ann Arbor, Michigan, 6-9 November 2002. American Institute of Physics, 2003.
10
Michigan. Dept. of State Police. Central Records Division. A resource manual for Michigan's criminal justice information system. Michigan Dept. of State Police, 1988.
Conference papers on the topic "Michigan. Dept. of Aeronautics"
1
Rettler, M. W., M. L. Easley, and J. R. Smyth. "Ceramic Gas Turbine Technology Development." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-207.
Full textAbstract:
Under the U.S. Dept. of Energy/National Aeronautics and Space Administration (DOE/NASA) funded Ceramic Turbine Engine Demonstration Project, formerly the Advanced Turbine Technology Applications Project (ATTAP), AlliedSignal Engines is addressing the remaining critical concerns slowing the commercialization of structural ceramics in gas turbine engines. These issues include demonstration of ceramic component reliability, readiness of ceramic suppliers to support ceramic production needs, and development of ceramic design technologies. The AlliedSignal/Garrett Model 331-200[CT] Auxiliary Power Unit (APU) is being used as a ceramics test bed engine. The first-stage turbine blades and nozzles were redesigned using ceramic materials, employing the design methods developed during the earlier DOE/NASA-funded Advanced Gas Turbine (AGT) and ATTAP programs. Ceramic engine components have been fabricated and are now being evaluated in laboratory engine testing. The fabrication processes for these components will provide the framework for a demonstration of manufacturing process scale-up to the minimum level for commercial viability. The laboratory engine testing is helping to refine the component designs and focus the development of ceramic component technologies. Extended engine endurance testing and field testing in commercial aircraft is planned to demonstrate ceramic component reliability. Significant progress has been made during 1994. An engine with ceramic turbine nozzles was successfully operated and engine tests in the laboratory are continuing to gather useful data. An engine equipped with ceramic blades was also tested, but blade fractures occurred, interrupting operation. An extensive investigation has identified possible vibration and contact problems. Investigative evaluation efforts are continuing to identify the problem source and determine go-forward plans for ceramic blade development. Component design technologies have progressed in the areas of modeling particle impact pulverization, development of a ceramic hot corrosion environmental life model, and methods for evaluating ceramic contact damage. The planned ceramic manufacturing scale-up was initiated with two ceramics vendors, Norton Advanced Ceramics (East Granby, CT) and AlliedSignal Ceramic Components (Torrance, CA). The scaleup demonstration program is emphasizing improvement of ceramic processing yields and increased production rates. Work summarized in this paper was funded by the U.S. Dept. of Energy (DOE) Office of Transportation Technologies, as part of the Turbine Engine Technologies Program, and administered by the NASA Lewis Research Center, Cleveland, OH under Contract No. DEN3-335.
2
Kinney, Troy W., and Michael L. Easley. "Ceramic Gas Turbine Technology Development." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-465.
Full textAbstract:
Under the U.S. Dept. of Energy (DoE) funded Ceramic Turbine Engine Demonstration Project (CTEDP), AlliedSignal Engines is addressing remaining critical concerns slowing the commercialization of structural ceramics in gas turbine engines. These issues include demonstration of ceramic component reliability, readiness of ceramic suppliers to support ceramic production needs, and development of ceramic design technologies. The AlliedSignal/Garrett Model 331-200[CT] auxiliary power unit (APU) is being used as a ceramics test bed engine. The first-stage turbine blades and nozzles were redesigned for ceramic materials, employing design methods developed during the earlier Dept. of Energy/National Aeronautics and Space Administration (DoE/NASA)-funded Advanced Gas Turbine (ACT) and Advanced Turbine Technology Applications (ATTAP) programs. The fabrication processes for these components provide the framework for demonstration of ceramic manufacturing process scale-up to the minimum level for commercial viability. Ceramic engine components have been fabricated and are now being evaluated in laboratory engine testing. This testing is helping to refine the component designs and focus the development of ceramic component technologies. Extended engine endurance testing and field testing in commercial aircraft is planned, to demonstrate ceramic component reliability. Significant progress was made during 1996 in the ceramic component manufacturing scale-up activities. The CTEDP ceramics subcontractors, AlliedSignal Ceramic Components (Torrance, CA) and Kyocera Industrial Ceramics Corporation (Vancouver, WA) demonstrated increased capacity and improved yields of silicon nitride materials. Planned ceramic turbine nozzle manufacturing demonstrations were initiated by both companies. Ceramic design technology was further refined in several areas. Work continued in defining boundary conditions for impact modeling of ceramic turbine engines, including completion of a three-dimensional trajectory analysis for combustor carbon particles in the engine flowpath. Contact rig tests and supporting analyses helped define the effectiveness of compliant layers in reducing ceramic turbine blade attachment contact stresses, and the results are aiding the evolution of more effective compliant layer configurations. This work supported evaluation of various ceramic turbine blade attachment designs in subelement and engine tests. Thin-film strain gage technology for measuring vibratory levels at high temperatures was successfully applied on ceramic turbine blades. Ceramic materials were screened for susceptibility to cyclic hot corrosion fatigue at the conditions affecting turbine blades. Stress rupture testing in support of the proof test methodology development was completed. Engine endurance tests with ceramic turbine nozzles accumulated over 482 additional hours of successful operation. Ceramic turbine blades were successfully demonstrated in over 190 hours of engine operation. This work brought the combined ceramic component engine test experience to over 1500 operating hours. Work summarized in this paper was funded by the DoE Office of Transportation Technologies, as part of the Turbine Engine Technologies Program, and administered through Fiscal Year 1996 by the NASA Lewis Research Center, Cleveland, OH under Contract No. OEN3-335.
3
Easley, M. L., and J. R. Smyth. "Ceramic Gas Turbine Technology Development." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-367.
Full textAbstract:
Under the U.S. Department Of Energy/National Aeronautics and Space Administration (DOE/NASA) funded Ceramic Turbine Engine Demonstration Program, AlliedSignal Engines is addressing the remaining critical concerns slowing the commercialization of structural ceramics in gas turbine engines. These issues include demonstration of ceramic component reliability, readiness of ceramic suppliers to support ceramic production needs, and enhancement of ceramic design methodologies. The AlliedSignal/Garrett Model 331-200[CT] Auxiliary Power Unit (APU) is being used as a ceramics test bed engine. For this program, the APU First-stage turbine blades and nozzles were redesigned using ceramic materials, employing the design methods developed during the earlier DOE/NASA funded Advanced Gas Turbine (AGT) and Advanced Turbine Technologies Application Project (ATTAP) programs. The present program includes ceramic component design, fabrication, and testing, including component bench tests and extended engine endurance testing and field testing. These activities will demonstrate commercial viability of the ceramic turbine application. In addition, manufacturing process scaleup for ceramic components to the minimum level for commercial viability will be demonstrated. Significant progress has been made during the past year. Engine testing evaluating performance with ceramic turbine nozzles has accumulated over 910 hours operation. Ceramic blade component tests were performed to evaluate the effectiveness of vibration dampers and high-temperature strain gages, and ceramic blade strength and impact resistance. Component design technologies produced impact-resistance design guidelines for inserted ceramic axial blades, and advanced the application of thin-film thermocouples and strain gages on ceramic components. Ceramic manufacturing scaleup activities were conducted by two ceramics vendors, Norton Advanced Ceramics (East Granby, CT) and AlliedSignal Ceramic Components (Torrance, CA). Following the decision of Norton Advanced Ceramics to leave the program, a subcontract was initiated with the Kyocera Industrial Ceramics Company Advanced Ceramics Technology Center (Vancouver, WA). The manufacturing scaleup program emphasizes improvement of process yields and increased production rates. Work summarized in this paper was funded by the U.S. Dept. Of Energy (DOE) Office of Transportation Technologies, part of the Turbine Engine Technologies Program, and administered by the NASA Lewis Research Center, Cleveland, OH under Contract No. DEN3-335.
Reports on the topic "Michigan. Dept. of Aeronautics"
1
Relativistic heavy ion research. [Dept. of Physics and Astronomy, Wayne State Univ. , Detroit, Michigan]. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/6804888.
Full text