ASA Technical Committee on Architectural Acoustics holds workshop on Open Office Acoustics

1979 ◽  
Vol 65 (1) ◽  
pp. 273-274
Keyword(s):  
Technical Committee ◽  
Architectural Acoustics ◽  
Open Office

Recent Activities of Technical Committee on Plasma Science and Technology

2016 ◽  
Vol 136 (1) ◽  
pp. 16-17
Author(s):  
Yasunori Tanaka ◽  
Masanori Shinohara ◽  
Nozomi Takeuchi ◽  
Ryuta Ichiki ◽  
Takuya Kuwahara
Keyword(s):  
Science And Technology ◽  
Technical Committee ◽  
Plasma Science

Technical Committee 46 “Information and Documentation” of the International Organization for Standardization (ISO/ TC 46) Celebrates its 60th Anniversary

2009 ◽  
pp. 80-89
Author(s):  
Olga A. Diakonova ◽  
Nina F. Kornoushenko
Keyword(s):  
International Organizations ◽  
Information Science ◽  
Technical Committee ◽  
International Standards ◽  
International Standard Organization ◽  
Library And Information Science ◽  
60Th Anniversary ◽  
Working Groups ◽  
Standard Organization ◽  
Information Work

Technical Committee 46 «Information and Documentation» of the International Standard Organization (ISO/TC 46) is published. Even a short description of ISO/TC 46 activities visually demonstrates what incredible and truly revolutionary changes happened during the last 60 years in the library, documentation and information work. The modern ISO/TC 46 structure is given, the work trends of its four subcommittees and numerous working groups, the interaction with other ISO technical committees and international organizations is characterized. Importance of standardization problems in the field of library and information science and of librarianship, in particularly, is confirmed by the authors’ practical work lasting for many year. The proposed information permits to better imagine the preparation process of the international standards and necessity of Russian specialists’ participation.

scholarly journals TC-28 Technical Committee Report [MTT-S Society News]

2021 ◽  
Vol 22 (5) ◽  
pp. 112-122
Author(s):  
Mohammad-Reza Tofighi ◽  
Chung-Tse Michael Wu ◽  
Dominique Schreurs
Keyword(s):  
Technical Committee ◽  
Committee Report

scholarly journals Reveal of Internal, Early-Load Interfacial Debonding on Cement Textile-Reinforced Sandwich Insulated Panels

2021 ◽  
Vol 11 (2) ◽  
pp. 879
Author(s):  
Eleni Tsangouri ◽  
Hasan Ismail ◽  
Matthias De Munck ◽  
Dimitrios G. Aggelis ◽  
Tine Tysmans
Keyword(s):  
Average Frequency ◽  
Technical Committee ◽  
Interfacial Debonding ◽  
Image Correlation ◽  
Rilem Technical Committee ◽  
Structural Element ◽  
Full Field ◽  
Displacement Mapping ◽  
Early Loading ◽  
Damage Tracking

Internal interfacial debonding (IID) phenomena on sandwich façade insulated panels are detected and tracked by acoustic emission (AE). The panels are made of a thin and lightweight cementitious composite skin. In the lab, the panels are tested under incremental bending simulating service loads (i.e., wind). Local (up to 150 mm wide) skin-core detachments are reported in the early loading stage (at 5% of ultimate load) and are extensively investigated in this study, since IID can detrimentally affect the long-term durability of the structural element. A sudden rise in the AE hits rate and a shift in the wave features (i.e., absolute energy, amplitude, rise time) trends indicate the debonding onset. AE source localization, validated by digital image correlation (DIC) principal strains and out-of-plane full-field displacement mapping, proves that early debonding occurs instantly and leads to the onset of cracks in the cementitious skin. At higher load levels, cracking is accompanied by local debonding phenomena, as proven by RA value increases and average frequency drops, a result that extends the state-of-the-art in the fracture assessment of concrete structures (Rilem Technical Committee 212-ACD). Point (LVDT) and full-field (AE/DIC) measurements highlight the need for a continuous and full-field monitoring methodology in order to pinpoint the debonded zones, with the DIC technique accurately reporting surface phenomena while AE offers in-volume damage tracking.

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