Simulation and Production of Wound Impellers

2008 ◽  
Author(s):  
Allen Eyler ◽  
Norbert Mu¨ller
Keyword(s):  
Computer Simulation ◽  
Production Process ◽  
Gas Turbines ◽  
Michigan State University ◽  
State University ◽  
Simulation And Optimization ◽  
Wide Range ◽  
Potential Applications ◽  
Wound Composite

The wound composite impeller, developed at Michigan State University, is a new way of manufacturing turbomachine impellers with a wide range of potential applications, even including use in gas turbines. The production can be rapid, inexpensive, and utilize commercially available winding machines. This work focuses on the modeling of the Wound Impeller for computer simulation and optimization processes, and for automation of the production process.

Organic Functional Group Protection and Deprotection

2017 ◽  
Author(s):  
Douglass F. Taber
Keyword(s):  
Environmental Science ◽  
Reduction Product ◽  
Michigan State University ◽  
State University ◽  
University Of Pittsburgh ◽  
Fe Catalyst ◽  
Wide Range ◽  
Cu Catalyst ◽  
Simple Extraction ◽  
The University

Martin Oestreich of the Technische Universität Berlin developed (Eur. J. Org. Chem. 2014, 2077) the Birch reduction product 2 as a donor for the silylation of an alco­hol 1 to give 3. Atahualpa Pinto of the SUNY College of Environmental Science and Forestry devised (Tetrahedron Lett. 2014, 55, 2600) conditions for the monosilylation of the diol 4 to give 5. Quanxuan Zhang of Michigan State University reported (Tetrahedron Lett. 2014, 55, 3384) the preparation (not illustrated) of the mono-THP ethers of symmetrical diols. The product from the Mitsunobu cou­pling of an acid with an alcohol 6 can be difficult to purify. Takashi Sugimura of the University of Hyogo showed (Synthesis 2013, 45, 931) that the oxidation product from 7 and the reduction product from 8 could both be removed from the product 9 by simple extraction. David Milstein of the Weizmann Institute of Science found (Angew. Chem. Int. Ed. 2014, 53, 4685) that an Fe catalyst could be used to reduce the trifluoroacetate 10 to 11. Jean-Michel Vatèle of the Université Lyon 1 oxidized (Synlett 2014, 25, 115) the benzylidene acetal 12 selectively to the monobenzoate 13. Xinyu Liu of the University of Pittsburgh organized (Chem. Commun. 2014, 50, 3155) a family of acid-sensitive esters that can be selectively removed in the presence of other esters, as exemplified by the conversion of 14 to 15. Ryo Yazaki and Takashi Ohshima of Kyushu University observed (Angew. Chem. Int. Ed. 2014, 53, 1611) that an amine would add spontaneously to acrylonitrile 17 to give 18. In the presence of a Cu catalyst, alcohols added to 17 even more readily, allowing the preparation of 18 from 16. Diego Gamba-Sánchez of the Universidad de los Andes used (J. Org. Chem. 2014, 79, 4544) simple Fe catalysts to activate a wide range of amides, including 20, to become acylating agents, converting 19 to 21. 1,2-Addition to t-butylsulfanylimines is widely used to construct aminated stereo­genic centers. Xiaodong Yang and Hongbin Zhang of Yunnan University established (Chem. Commun. 2014, 50, 6259) a general protocol for cleaving the N–S bond in the product 22 to give the desired free amine 23.

Research in Second Language Studies at Michigan State University

2013 ◽  
Vol 46 (2) ◽  
pp. 272-277 ◽  
Author(s):  
Solène Inceoglu ◽  
Le Anne Spino
Keyword(s):  
Second Language ◽  
Doctoral Students ◽  
The United States ◽  
Faculty Members ◽  
Michigan State University ◽  
State University ◽  
New Faculty ◽  
Core Faculty ◽  
Language Studies ◽  
Wide Range

Since its inception seven years ago, Michigan State University's vibrant Second Language Studies (SLS) Program has grown quickly under the direction of Dr. Susan Gass. Thus far, twelve students have graduated from the program and now hold academic positions in various universities in the United States and elsewhere. In 2011, the department welcomed two new faculty members, Dr. Aline Godfroid and Dr. Bill VanPatten, making a total of eleven core faculty members, and in Spring 2012, Dr. Rod Ellis joined the department as affiliated faculty. The program currently includes 30 doctoral students working on a wide range of research topics.

Performance of Low Solidity and Conventional Diffuser Systems for Centrifugal Compressors

1996 ◽  
Author(s):  
Naresh K. Amineni ◽  
Abraham Engeda ◽  
William C. Hohlweg ◽  
Gregory L. Direnzi
Keyword(s):  
Gas Turbines ◽  
Experimental Studies ◽  
Maximum Efficiency ◽  
Michigan State University ◽  
Aircraft Engines ◽  
State University ◽  
Centrifugal Compressors ◽  
Vaned Diffuser ◽  
The Family ◽  
Vast Literature

Centrifugal compressors have the widest compressor application area, covering aircraft engines, small stationary gas turbines, process and refinery industries, the refrigeration industry, and turbochargers. Despite the vast literature coverage of diffuser systems for centrifugal compressors, there are not more than twenty publications in the open literature on the family of vaned diffusers known as Low Solidity Vaned Diffuser (LSVD). This is highly surprising, in light of the fact, that practically all process and refrigeration compressors manufacturers, at one time or another, have attempted to design and test LSVD. Therefore with the strong belief that any work on LSVD either theoretical or experimental will be welcomed, this paper presents the performance of two newly designed LSVD. Comparative experimental studies on diffuser systems for centrifugal compressors, performed at the Michigan State University Turbomachinery Lab are presented. A vaneless, a conventional vaned and two low solidity vaned diffusers were tested. The results are compared for the effect of the diffuser systems on the stage performance, the maximum efficiency, and the operating range of the compressor. The effect of the vane number in low solidity vaned diffuser on the performance is also discussed.

Ultrastructural Studies of Bovine Respiratory Disease Complex

1975 ◽  
Vol 33 ◽  
pp. 428-429
Author(s):  
James C.S. Kim
Keyword(s):  
Michigan State University ◽  
State University ◽  
Diagnostic Laboratory ◽  
Ultrastructural Studies ◽  
Bovine Respiratory Diseases ◽  
Etiologic Agents ◽  
Diagnostic Difficulties ◽  
The Subject ◽  
Capillary Walls ◽  
Alveolar Capillary

Bovine respiratory diseases cause serious economic loses and present diagnostic difficulties due to the variety of etiologic agents, predisposing conditions, parasites, viruses, bacteria and mycoplasma, and may be multiple or complicated. Several agents which have been isolated from the abnormal lungs are still the subject of controversy and uncertainty. These include adenoviruses, rhinoviruses, syncytial viruses, herpesviruses, picornaviruses, mycoplasma, chlamydiae and Haemophilus somnus.Previously, we have studied four typical cases of bovine pneumonia obtained from the Michigan State University Veterinary Diagnostic Laboratory to elucidate this complex syndrome by electron microscopy. More recently, additional cases examined reveal electron opaque immune deposits which were demonstrable on the alveolar capillary walls, laminae of alveolar capillaries, subenthothelium and interstitium in four out of 10 cases. In other tissue collected, unlike other previous studies, bacterial organisms have been found in association with acute suppurative bronchopneumonia.

Unexpectedness

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
John-Carlos Perea ◽  
Jacob E. Perea
Keyword(s):  
American Indian ◽  
San Francisco ◽  
Interdisciplinary Research ◽  
Ethnic Studies ◽  
College Of Education ◽  
Present Moment ◽  
State University ◽  
Research Projects ◽  
Short Survey ◽  
Wide Range

The concepts of expectation, anomaly, and unexpectedness that Philip J. Deloria developed in Indians in Unexpected Places (2004) have shaped a wide range of interdisciplinary research projects. In the process, those terms have changed the ways it is possible to think about American Indian representation, cosmopolitanism, and agency. This article revisits my own work in this area and provides a short survey of related scholarship in order to reassess the concept of unexpectedness in the present moment and to consider the ways my deployment of it might change in order to better meet the needs of my students. To begin a process of engaging intergenerational perspectives on this subject, the article concludes with an interview with Dr. Jacob E. Perea, dean emeritus of the Graduate College of Education at San Francisco State University and a veteran of the 1969 student strikes that founded the College of Ethnic Studies at San Francisco State University.

Topics of Environmental Education Program in Coastal Areas

1992 ◽  
Vol 25 (9) ◽  
pp. 253-259 ◽  
Author(s):  
A. M. O. Rennhack ◽  
D. M. W. Zee ◽  
E. S. Cunha ◽  
M. F. Portilho
Keyword(s):  
Environmental Education ◽  
Rio De Janeiro ◽  
Local Community ◽  
Environmental Problems ◽  
Coastal Areas ◽  
State University ◽  
Urban Centers ◽  
Educational Support ◽  
Wide Range ◽  
Supply Information

Researches and Studies made by the Department of Oceanography of the Institute of Geoscience of the State University of Rio de Janeiro UERJ, evidenced the need for educational support where environment-related questions were concerned. A wide range of environment problems tend to concentrate in coastal areas, owing to disordinate urban growth combined with the lack of substructure to cope with it A large number of these problems can be minimized through the participation of the local community. Thus the goals of environmental education are to supply information, to promote a change in the population's attitude toward environmental problems, besides stimulating its participation by fostering its sense of responsibility. Preliminary results have demonstrated that the community has shown great interest in the work that has been proposed, and it has contributed with participation, promising response. Environmental education is fundamental when we consider possible solutions for environmental problems in coastal urban centers. Only by educating the main cause of environmental problems, man himself, will it be possible to consider the question starting from its very origin. This abstract presents two pioneer experiments in the Municipio of Rio de Janeiro, which are “Muito Prazer Marapendi” (“Glad to know you, Marapendi”) and “Troca de Areias da Praia de Copacabana” (“Exchange of Sands in Copacabana Beach”).

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