MEMORANDUM Subject:     Cataloging Electronic Theses and Dissertation (ETD): Issues and Recommendations Date:     March 19, 2001 From:     J. Murphy, M. El-Sherbini Call number issue: Currently we devise the local call number for theses and dissertations. This requires not only time but continual updating of acronyms for depts./programs, which often change, especially with joint programs. Most other libraries use a generic "Electronic Theses". Single vs. multiple record: While we continue to receive paper copies, a one-record approach to cataloging will be used. See example. This requires, depending on which is received first, editing the bib record in Oscar/Felix and OCLC. Subject heading: Currently we are not providing subject headings or key words. Currently, OhioLINK allows the student to input key words and select "subject headings" from a thesaurus that greatly differs from LCSH. We will add the keywords in the 653 field. For subject headings we recommend that we remove the "OhioLINK subject headings" because they would require a tremendous amount of revision beyond the capabilities of a graduate student and because they conflict so greatly with the thesaurus used by Oscar (LCSH). Alternatively we could add these as 653s, which are indexed in the OSCAR keyword file but not the subject heading index. Abstract: We recommend to add the abstract in the bib record in 520 filed as additional access points. URL: We will edit the 856 to include a subfield |z Connect to this title online. Location Code: We will use wwb. Availability Note (530): We will use: Available online via OhioLINK’s ETD Center Other issues: At the last OhioLINK DMSC meeting there was discussion of a MARC record being supplied each institution by OhioLINK. To decrease the amount of local editing by instructing the graduate in proper inputting of elements (e.g., title, capitalization, pagination), OhioLINK will not provide a standard, so that each institution can deal directly with their graduate school. We recommend that the Cataloging Dept. can work with the Graduate School to set up proper requirements for inputting thesis information in the OhioLINK submittal form. Example: B53180185 BIBLIOGRAPHIC Information LANG: eng LOCATION: multi BIB LVL: m BCODE3: - SKIP: 0 CAT DATE: 02-15-01 MAT TYPE: z COUNTRY: ohu 001 45948641 003 OCoLC 005 20010215160422.0 008 010215s2000 ohua 000 0 eng dnamKa 040 OSU|cOSU 049 OSUU 099 THE:AER2000PHDY463 099 THE:AER2000PHDY463 100 1 Yen, Hsin-Yi|d1970- 245 10 New analysis and design procedures for ensuring gas turbine blades and adhesive bonded joints structural integrity and durability /|cby Hsin- Yi Yen 260 [Columbus, Ohio] :|bOhio State University,|c2000 300 xx, 154 p.|bill. (some col.) 500 Includes vita 500 Title from title page display 500 Abstract 500 Advisor: M. -H. Herman Shen, Dept. of Aerospace Engineering, Applied Mechanics, and Aviation 500 System requirements: World Wide Web browser and PDF reader 502 Thesis (Ph.D.)--Ohio State University, 2000 504 Includes bibliographic references (p. 152-154) 520 Most load-carrying structural systems under severe operating conditions such as gas turbine engines usually demand durability, high reliability, light weight, and high performance. In turn, as it has been reported, a number of structural failures have occurred in aircraft engines during development testing and operational service. In order to prevent failures of turbine engines, the turbine blade vibration must be attenuated to an acceptable level. To achieve this goal, the blade has to be provided with higher damping, either externally or internally. The objective of this study is to explore the feasibility of using a stress dependent magneto mechanical surface coating material for enhancing high damping capacity on turbine blades. The results show that a 2% or 4% of blade thickness free surface magneto mechanical coating layer has a signi cant contribution to the damping enhancement and the reduction of vibratory stresses at various low and high frequency vibration modes under either non-rotating or rotating conditions. Similar to the blade failure, the structural reliability and safety of the adhe- sive bonded joint, one of the most commonly used structural joint designs in the aerospace industry, is also a serious concern of the aircraft design community. Adhe- sive joints easily become weaker due to environmental degradation and/or improper manufacturing procedures. This often reduces structural durability and reliability signi cantly. This motivates us to develop a new nite element tool/procedure for assessing the interfacial disbonding mechanics of the single-lap joint with vari- ous imperfectly-bonded conditions in order to predict the adhesive bonded joint's strength more precisely during its service period. According to these conclusions, a new three-dimensional graphic mesh has been created to display the maximum stress variations under di erent amounts and sizes of disbonded area. This new procedure can be used as a basis for the development of a bonded joint reliability prediction method and accept/reject inspection criteria. 530 Available online via OhioLINK’s ETD Center 538 Mode of access: Internet, via World Wide Web 650 0 Gas turbines|xBlades 650 0 Adhesive joints 653 Turbine 653 Adhesive 653 Analysis 790 1 Shen, M. -H. Herman 790 2 Ohio State University.|bDept. of Aerospace Engineering, Applied Mechanics, and Aviation 856 40 |uhttp://www.ohiolink.edu/etd/send-pdf.cgi?osu967666610|zConnect to this title online LOCATIONS mic,sel

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