Reservoir sediments as a long-term source of dissolved radiocaesium in water system; a mass balance case study of an artificial reservoir in Fukushima, Japan

2020 ◽  
Vol 743 ◽  
pp. 140668 ◽  
Author(s):  
Hironori Funaki ◽  
Kazuyuki Sakuma ◽  
Takahiro Nakanishi ◽  
Kazuya Yoshimura ◽  
Estiner Walusungu Katengeza
2013 ◽  
Vol 723 ◽  
pp. 968-975
Author(s):  
Hui Hua Yang

Public bikes rental system is an innovative scheme of rental bicycles in urban areas and can be seen as part of the public transport system. This study investigates the users of Taipei YouBike rental system, analysis their intention and behaviors, pre-expectation and actual experience on satisfaction. The result indicates that the users were mostly from long term annual fee commuters. The result also reveals distinct discrepancies between pre-expectation and actual experience, especially in distributes of safety routes and environments and clear indication of signs on bike routes. The findings can be used for Taipei City to improve the urban bicycle program and make more effort to develop safety cycling infrastructures and amenities.


Author(s):  
Terry L. von Thaden

Winter operations have long posed unique problems for the aviation community. According to Federal Aviation Regulations, no pilot may take off in an aircraft that has ice, snow, or frost adhering to the surface. This “clean aircraft concept” is difficult, if not impossible, for the pilots to assess from inside the aircraft. Equipment is in development to furnish the flight deck with icing information; however, these devices are not widely available and in many cases require costly retrofits. Pilots, unable to assess their aircraft’s external condition, often choose to return for additional deicing, necessitating the use of more glycol, thus jeopardizing the environment with additional glycol runoff entering the storm water system. A procedure has been developed to give the flight deck the necessary critical information concerning the state of the aircraft just before departure, providing a support system for pilot go/no-go decisions, increasing safety, and decreasing environmental hazards with reduced glycol usage. This Final Ice Detection Operation (FIDO) may be put into effect immediately with resources currently available at the nation’s airports and at minimal cost. A query of the National Aeronautics and Space Administration’s Aviation Safety Reporting System was conducted for ground icing incidents. A case study was also performed on a randomly selected group of air carrier pilots to understand their current issues with ground deicing operations. The findings support FIDO. A cost-benefit analysis would determine the viability of this procedure.


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