Deutsches ReichPub Date : 1929-12-31DOI: 10.1515/9783112599266-021
Scott L. Swartz, G. Cheney, W. Dawson, Michael Cobb, K. Meacham, James Stephan, Bob Remick, H. Anderson, W. Huebner, A. Crumm, John R. Holloran, T. Armstrong
{"title":"U","authors":"Scott L. Swartz, G. Cheney, W. Dawson, Michael Cobb, K. Meacham, James Stephan, Bob Remick, H. Anderson, W. Huebner, A. Crumm, John R. Holloran, T. Armstrong","doi":"10.1515/9783112599266-021","DOIUrl":"https://doi.org/10.1515/9783112599266-021","url":null,"abstract":"This report summarizes the results of Phase I of a study entitled, Low-Cost Manufacturing Of Multilayer Ceramic Fuel Cells. The work was carried out by a group called the Multilayer Fuel Cell Alliance (MLFCA) led by NexTech Materials and including Adaptive Materials, Advanced Materials Technologies (AMT), Cobb & Co., Edison Materials Technology Center, Iowa State University, Gas Technology Institute (GTI), Northwestern University, Oak Ridge National Laboratory (ORNL), Ohio State University, University of Missouri-Rolla (UMR), and WrightPatterson Air Force Base. The objective of the program is to develop advanced manufacturing technologies for making solid oxide fuel cell components that are more economical and reliable for a variety of applications. In the Phase I effort, five approaches were considered: two based on NexTech’s planar approach using anode and cathode supported variations, one based on UMR’s ultra-thin electrolyte approach, and two based on AMI’s co-extrusion technology. Based on a detailed manufacturing cost analysis, all of the approaches are projected to result in a significantly reduced production cost. Projected costs range from $139/kW to $179/kW for planar designs. Development risks were assessed for each approach and it was determined that the NexTech and UMR approaches carried the least risk for successful development. Using advanced manufacturing methods and a proprietary high power density design, the team estimated that production costs could be reduced to $94/kW.","PeriodicalId":388243,"journal":{"name":"Deutsches Reich","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1929-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127282808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deutsches ReichPub Date : 1929-12-31DOI: 10.1515/9783112599266-003
Shun-Cheng Chang
{"title":"B","authors":"Shun-Cheng Chang","doi":"10.1515/9783112599266-003","DOIUrl":"https://doi.org/10.1515/9783112599266-003","url":null,"abstract":"Let M be a compact Kählerm-manifold that has a Kähler metric ds2 = gαβ̄ dz α ⊗ dz̄ . Then it is known that, for the Ricci curvature tensor Rαβ̄ = −(∂2/∂zα∂z̄β) log det(gλμ̄), √−1 2π Rαβ̄ dz α ∧ dz̄ is a closed(1,1)-form and its cohomology class is equal to the first Chern class C1(M). Conversely, it was Calabi who asked if, for any closed (1,1)-form √−1 2π R̃αβ̄ dz α ∧ dz̄ that is cohomologous toC1(M), can one find a Kähler metric̃ gαβ̄ onM such thatR̃αβ̄ is the Ricci curvature tensor of̃ gαβ̄? As a consequence of Aubin and Yau’s results, one can find a Kähler–Einstein metric on M with C1(M) = 0 orC1(M) < 0. WhenC1(M) > 0, the space of Kähler–Einstein metrics are invariant under automorphism group. However, the existence does not always hold in general [F; M; T; TY]. Instead of the Kähler–Einstein metric, we consider the notion of extremal metrics due to Calabi [C1]. Namely, fix a Kähler class 0 = [ω0] on a compact Kähler manifoldM and denote byH 0 the space of all Kähler metrics with the same fixed Kähler class 0. Now consider the functional 8 : H 0 → R, 8(g) = ∫","PeriodicalId":388243,"journal":{"name":"Deutsches Reich","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1929-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123332517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deutsches ReichPub Date : 1929-12-31DOI: 10.1515/9783112599266-002
T. 01.B, T. 01.B, Tarih Kavramı
{"title":"A","authors":"T. 01.B, T. 01.B, Tarih Kavramı","doi":"10.1515/9783112599266-002","DOIUrl":"https://doi.org/10.1515/9783112599266-002","url":null,"abstract":"","PeriodicalId":388243,"journal":{"name":"Deutsches Reich","volume":"05 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1929-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129023674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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