Results 11 to 20 of about 370,623 (293)

Radioactivity decontamination in and around school facilities in Fukushima

open access: yesMechanical Engineering Journal, 2016
Approximately two months after the Fukushima nuclear accident, the Japan Atomic Energy Agency (JAEA) led off a series of demonstration tests to develop effective but easily applicable decontamination methods for various school facilities in Fukushima ...
Jun SAEGUSA   +7 more
doaj   +1 more source

How does radioisotope thermoelectric generator (RTG) work

open access: yesBrazilian Journal of Radiation Sciences, 2022
Demand for energy has increasing rapidly in the last decade. In 2021 an increase in 5% was observed. Half of this demand was covered by fossil fuels, increasing CO2 emissions to record levels.
Carla Daruich de Souza   +8 more
doaj   +1 more source

Progresses on Reactions of Weakly Bound Nuclei at Near-barrier Energies [PDF]

open access: yesEPJ Web of Conferences
Reactions of weakly bound stable and unstable nuclei have been extensively investigated for several decades. Unique structural effects and breakup mechanisms of weakly bound nuclei have consistently been focal points in the research of nuclear physics ...
Huang Z. J.   +11 more
doaj   +1 more source

Apparent Stability Constant of Zr(Ⅳ)-Hydroxyurea Complex With pH Potentiometric Titration

open access: yesHe huaxue yu fangshe huaxue, 2022
Hydroxyurea(HU) is a reducing and complexing agent that can be used in the PUREX process. Zr is an important fission product in the spent fuel and main element of concern in the nuclear fuel reprocessing.
YANG Ya-ya   +7 more
doaj   +1 more source

Research and development on high burnup HTGR fuels in JAEA

open access: yesMechanical Engineering Journal, 2020
JAEA has been progressing to design HTGR fuels for not only small-type practical HTGRs but also VHTR proposed in GIF which can be utilized for various purposes with high-temperature heat at 750 to 950 °C.
Shohei UETA   +5 more
doaj   +1 more source

Stability of Am(Ⅲ) Colloid and Its Adsorption Behavior on Bentonite Colloids

open access: yesHe huaxue yu fangshe huaxue, 2022
The formation of Am(Ⅲ) colloid and its adsorption behaviors on bentonite colloid were investigated in Beishan 03 groundwater. A series of influencing factors, such as, pH, CO2 concentration in gas atmosphere, ionic strength and temperature, on colloidal ...
LIU Chen   +6 more
doaj   +1 more source

A safety evaluation of HTTR core graphite structures against the great east japan earthquake

open access: yesMechanical Engineering Journal, 2014
On March 11th, 2011, the Great East Japan Earthquake which is one of the largest earthquakes in japan occurred and the maximum acceleration in observed seismic wave in the HTTR exceeded the design value in a part of input seismic motions.
Kazuhiko IIGAKI   +7 more
doaj   +1 more source

QSAR of Reaction Between Hydrazine and Its Derivatives With Nitrous Acid

open access: yesHe huaxue yu fangshe huaxue, 2022
In this paper, the half-reaction time of the reaction between hydrazine and its derivatives with nitrous acid is measured using spectrophotometry and stopped-flow injection device.
NIE Jiang   +6 more
doaj   +1 more source

Astrophysical SE2 factor of the 12C(α, γ)16O reaction through the 12C(11B, 7Li)16O transfer reaction

open access: yesEPJ Web of Conferences, 2016
The 12C(α, γ)16O reaction plays a key role in the evolution of stars with masses of M > 0.55 M⊙. At the Gamow peak (Ec.m. = 300 ke V, T9 = 0.2), the cross section of the 12C(α, γ)16O reaction is so small (about 10−17 barn) that the direct measurement in ...
Guo B.   +21 more
doaj   +1 more source

Development of core design optimization process by integrated analysis with neutronics and plant dynamics

open access: yesMechanical Engineering Journal, 2023
A core design optimization process is developed as part of the design optimization support tool named ARKADIA (Advanced Reactor Knowledge- and AI-aided Design Integration Approach through the whole plant lifecycle) for an efficient and innovative core ...
Erina HAMASE   +4 more
doaj   +1 more source

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