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Current Status of Nuclear Waste Management (and Disposal) in the United States
McMahon, K.,Swift, P.,Nutt, M.,Birkholzer, J.,Boyle, W.,Gunter, T.,Larson, N.,MacKinnon, R.,Sorenson, K. Korean Radioactive Waste Society 2013 방사성폐기물학회지 Vol.1 No.1
The United States Department of Energy (US DOE) is conducting research and development (R&D) activities under the Used Fuel Disposition Campaign (UFDC) to support storage, transportation, and disposal of used nuclear fuel (UNF) and wastes generated by existing and future nuclear fuel cycles. R&D activities are ongoing at nine national laboratories, and are divided into storage, transportation and disposal. Storage R&D focuses on closing technical gaps related to extended storage of UNF. Transportation R&D focuses on ensuring transportability of UNF following extended storage, and addressing data gaps regarding nuclear fuel integrity, retrievability, and demonstration of subcriticality. Disposal R&D focuses on identifying geologic disposal options and addressing technical challenges for generic disposal concepts in mined repositories in salt, clay/shale, and granitic rocks, and deep borehole disposal. UFDC R&D goals include increasing confidence in the robustness of generic disposal concepts, reducing generic sources of uncertainty that may impact the viability of disposal concepts, and developing science and engineering tools to support the selection, characterization, and licensing of a repository. The US DOE has also initiated activities in the Nuclear Fuel Storage and Transportation (NFST) Planning Project to facilitate the development of an interim storage facility and to support transportation infrastructure in the near term.
Chord bearing capacity in long-span tubular trusses
C. J. Earls,B. Kozy,R. Boyle 국제구조공학회 2006 Steel and Composite Structures, An International J Vol.6 No.2
The capacity of tubular truss chords subjected to concentrated reaction forces in the vicinity of the open end (i.e., the bearing region) is not directly treated by existing design specifications; although capacity equations are promulgated for related tubular joint configurations. The lack of direct treatment of bearing capacity in existing design specifications seems to represent an unsatisfactory situation given the fact that connections very often control the design of long-span tubular structures comprised of members with slender cross-sections. The case of the simple-span overhead highway sign truss is studied, in which the bearing reaction is applied near the chord end. The present research is aimed at assessing the validity of adapting existing specifications’ capacity equations from related cases so as to be applicable in determining design capacity in tubular truss bearing regions. These modified capacity equations are subsequently used in comparisons with full-scale experimental results obtained from testing carried out at the University of Pittsburgh.
Knickkopf protein protects and organizes chitin in the newly synthesized insect exoskeleton
Chaudhari, S.S.,Arakane, Y.,Specht, C.A.,Moussian, B.,Boyle, D.L.,Park, Y.,Kramer, K.J.,Beeman, R.W.,Muthukrishnan, S. National Academy of Sciences 2011 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.108 No.41
Approaching the Spectral Knee in High Energy Cosmic Rays with CREAM
S. Seo, E.,S. Ahn, H.,Allison, P.,Anderson, T.,G. Bagliesi, M.,Barbier, L.,Barrau, A.,Bazer-Bachi, R.,J. Beatty, J.,Bigongiari, G.,Bhoyar, P.,Boyle, P.,T. Brandt, T.,Bué,nerd, M.,B. Conklin, N. Physical Society of Japan 2009 Journal of the Physical Society of Japan Vol.78 No.suppl