Biosurface properties and lead adsorption in a clone of (Mosses); Towards a unified protocol of biomonitoring of airborne heavy metal pollution

Di Palma, A.; Gonzlez, A. G.*; Adamo, P.*; Giordano, S.*; Reski, R.*; Pokrovsky, O. S.*

Chemosphere, 236, p.124375_1 - 124375_9, 2019/12

https://doi.org/10.1016/j.chemosphere.2019.124375

In this work we used field- and laboratory-grown S. palustre moss treated by EDTA and devitalized by oven drying, to elaborate a consistent procedure of metal and proton adsorption on moss surfaces and a biomonitoring protocol using cloned moss. Devitalization and EDTA treatments did not produce any measurable difference in terms of H and Pb adsorption capacities of moss surfaces. Therefore, in view of the use of S. palustre clone for biomonitoring purposes, we recommend devitalization as unique treatment to perform with the aim to preserve the biomaterial before and after its exposure in bags.

Fast magnetic field annihilation driven by two laser pulses in underdense plasma

Gu, Y. J.*; Klimo, O.*; Kumar, D.*; Bulanov, S. V.; Esirkepov, T. Z.; Weber, S.*; Korn, G.*

Physics of Plasmas, 22(10), p.103113_1 - 103113_9, 2015/10

AA2015-0547.pdf:4.08MB

https://doi.org/10.1063/1.4933408

The magnetic field generated by the laser pulses annihilates in a current sheet formed between the pulses. Magnetic field energy is converted to an inductive longitudinal electric field, which efficiently accelerates the electrons of the current sheet. This new regime of collision less relativistic magnetic field annihilation with a timescale of tens of femtoseconds can be extended to near-critical and overdense plasma with the ultra-high intensity femtosecond laser pulses.

Creep and Creep-Rupture Properties of the Cladding Tube for Fast Breeder Reactor in High Temperature Sodium. On the 2nd Trial Products (AISI Type 316 SS)for MK-1 Core of "JOYO"

S.Yuhar*; E.Yashi*; Atsumo, Hideo*

PNC TN951 75-10, 33 Pages, 1975/12

PNC-TN951-75-10.pdf:3.01MB

None

What controls the depth profile and overall age of carbon in soils ?

Trumbore, S.*; Schrumpf, M.*; Khomo, L.*; 小嵐 淳

no journal, , 

炭素は、土壌中において、その含有量は深さとともに減少し、一方で年代は増大する。これらのパターンは、深さに依存するさまざまなプロセスの働きによるものであると考えられる。われわれは、土壌の母材や鉱物特性、植生や気候などが異なる地点で採取した土壌の炭素量や放射性炭素(C-14)同位体比の深さ分布を比較した。その結果、土壌鉱物と相互作用していない炭素の深さ分布は、根の深さ分布に類似しており、そのC-14年代は深さに依存せずに若いことを見いだした。対照的に、土壌鉱物と相互作用している炭素のC-14年代は、多くの土壌で、深さとともにほぼ直線的に増大することを見いだした。このC-14年代と深さの間の直線的な関係は、土壌中での炭素の長期安定化メカニズムを区別して理解するための有用なメトリックとなりうる可能性がある。