Results of an international comparison for the determination of radionuclide activity in bilberry material

2012 ◽  
Vol 70 (9) ◽  
pp. 1843-1849 ◽  
Author(s):  
U. Wätjen ◽  
T. Altzitzoglou ◽  
A. Ceccatelli ◽  
H. Dikmen ◽  
H. Emteborg ◽  
...  
Keyword(s):  
International Comparison ◽  
Radionuclide Activity

Research on Mass Determination of International Comparison CCM.M-K4 of 1 kg Mass Weights

2015 ◽  
Vol 742 ◽  
pp. 75-79
Author(s):  
Man Hong Hu ◽  
Jian Wang ◽  
Yue Zhang ◽  
Chang Qing Cai ◽  
Rui Lin Zhong ◽  
...  
Keyword(s):  
International Comparison ◽  
Process Analysis ◽  
Mass Difference ◽  
Standard Uncertainty ◽  
Measurement Process ◽  
Mass Determination ◽  
Average Mass ◽  
Test Standards

CCM.M-K4 is a key international comparison organized by the Bureau International des Poids et Mesures (BIPM) to verify the measurement ability of 1kg stainless weights. This paper reports the process analysis of mass determination of CCM.M-K4 during the measurement in NIM, China. The gravity correction and air bouncy correction are discussed, and the measuring uncertainties of measurement process are evaluated. Mass difference between the test standards is 0.0015 mg, and average mass of both test standards is 0.013 mg. The standard uncertainty of test weights is 0.013 mg.

scholarly journals International comparison on the determination of polychlorinated biphenyl congeners in sediment

2004 ◽  
Vol 53 (3) ◽  
pp. 177-182 ◽  
Author(s):  
Takashi YARITA ◽  
Atsuko NAKAMA ◽  
Kazuko YOSHIMURA ◽  
Akiko TAKATSU ◽  
Kensaku OKAMOTO
Keyword(s):  
International Comparison ◽  
Polychlorinated Biphenyl

scholarly journals Results of international comparison tests on determination of 137Cs activity concentration in soil samples

2020 ◽  
Vol 13 (4) ◽  
pp. 101-109
Author(s):  
V. P. Ramzaev ◽  
Ch. Bernhardsson ◽  
A. A. Dvornik ◽  
Zh. V. Bakarikova ◽  
O. Karlberg ◽  
...  
Keyword(s):  
International Comparison ◽  
Activity Concentration ◽  
Soil Samples

Experimental determination of minimum detectable activity for radionuclide activity meters

2014 ◽  
Vol 30 ◽  
pp. e29-e30
Author(s):  
F. Zagni ◽  
F. Cesarini ◽  
G. Lucconi ◽  
G. Cicoria ◽  
D. Pancaldi ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Minimum Detectable Activity ◽  
Detectable Activity ◽  
Radionuclide Activity

RADIOACTIVE REMEDIATION OF AQUATIC ECOSYSTEMS USING MICROALGAE

2019 ◽  
Vol 186 (2-3) ◽  
pp. 296-300
Author(s):  
Dušan Galanda ◽  
Dominika Tatarová ◽  
Jozef Kuruc ◽  
Barbora Gaálová ◽  
Jana Slimáková
Keyword(s):  
Aquatic Ecosystems ◽  
Dunaliella Salina ◽  
Nuclear Accidents ◽  
Suitable Alternative ◽  
Ph Values ◽  
Nuclear Weapon Tests ◽  
Over Time ◽  
Optimal Ph ◽  
Radionuclide Activity

Abstract Radionuclides that have entered the environment through nuclear weapon tests, nuclear accidents or other human activities represent an ecological hazard. Many decontamination techniques are technically and financially demanding and often not environmentally beneficial. A suitable alternative is bioremediation techniques. One of them, phycoremediation utilizes the metabolic activity of microorganisms that degrade or eliminate contaminants from the environment. In our work, we focused on phycoremediation with microalgae Dunaliella salina and Chlorella vulgaris. An important parameter was the determination of the optimal pH values of the environment and subsequent monitoring of the radionuclide activity decline over time.

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