Results 51 to 60 of about 1,221 (174)

Method for Determination of 55Fe in Radioactive Used Oil from Nuclear Power Plant

Yuanzineng kexue jishu
55Fe is an important corresponding activation product during the operation of nuclear power plants. 55Fe may be present in the used oil required for main circuit mechanical equipment through cross-contaminating during maintenance activities-including ...
MA Lina1, 2, FAN Fuyou3, QIU Xiangping3, WANG Lusheng1, 2, DAI Xiongxin1, 2
doaj   +1 more source

Gallium arsenide 55Fe X-ray-photovoltaic battery [PDF]

Journal of Applied Physics, 2016
The effects of temperature on the key parameters of a prototype GaAs 55Fe radioisotope X-ray microbattery were studied over the temperature range of −20 °C to 70 °C. A p-i-n GaAs structure was used to collect the photons from a 254 Bq 55Fe radioisotope X-ray source. Experimental results showed that the open circuit voltage and the short circuit current
Butera, S, Lioliou, G, Barnett, A M
openaire   +1 more source

Extreme plasticity in the photosystem composition of a low‐light Prochlorococcus ecotype in response to iron and light

Limnology and Oceanography Letters, Volume 10, Issue 1, Page 82-90, February 2025.
Abstract Light affects the cellular iron (Fe) requirement of phytoplankton because of its presence in major photosynthetic proteins. Thus, interactions between variable Fe concentrations and light intensities could restrict photosynthetic carbon fixation in the ocean.
Xin Zhang, William G. Sunda, Haizheng Hong, Dalin Shi   +3 more
wiley   +1 more source

Gan Photonic Crystals: Spectral Dynamics in UV, X‐Ray, and Alpha Radiation

Advanced Photonics Research, Volume 6, Issue 1, January 2025.
The study explores GaN photonic crystals, showing enhanced optical responses to UV, X‐ray, and alpha radiation. Integrating these structures triples quantum efficiency compared to plain GaN, improving scintillation and photoluminescence. The results highlight potential applications in radiation detection, medical imaging, and optoelectronics, with ...
Firat Yasar, Noriaki Kawaguchi, Takayuki Yanagida, Isabel Harrysson Rodrigues, Yleana Evelyn Ceballos, Roberto Prado‐Rivera, Sam Keo   +6 more
wiley   +1 more source

Patterns of siderophore production and utilization at Station ALOHA from the surface to mesopelagic waters

Limnology and Oceanography, Volume 70, Issue 1, Page 128-145, January 2025.
Abstract The North Pacific subtropical gyre is a globally important contributor to carbon uptake despite being a persistently oligotrophic ecosystem. Supply of the micronutrient iron to the upper ocean varies seasonally to episodically, and when coupled with rapid biological consumption, results in low iron concentrations.
Randelle M. Bundy, Lauren E. Manck, Daniel J. Repeta, Matthew J. Church, Nicholas J. Hawco, Rene M. Boiteau, Jiwoon Park, Edward F. DeLong, Mak A. Saito   +8 more
wiley   +1 more source

Insights into the role of glycerophospholipids on the iron export function of SLC40A1 and the molecular mechanisms of ferroportin disease

The FASEB Journal, Volume 38, Issue 13, 15 July 2024.
Questions remain unanswered about the molecular mechanisms of iron export by SLC40A1. Our study highlights the existence of interactions between SLC40A1 and lipids of the plasma membrane. These interactions occur in the vicinity of two charged/polar clusters that play a critical role in the formation of the SLC40A1 inner gate.
Rim Debbiche, Ahmad Elbahnsi, Kévin Uguen, Chandran Ka, Isabelle Callebaut, Gérald Le Gac   +5 more
wiley   +1 more source

An oligo peptide transporter family member, OsOPT7, mediates xylem unloading of Fe for its preferential distribution in rice

New Phytologist, Volume 242, Issue 6, Page 2620-2634, June 2024.
Summary Iron (Fe) needs to be delivered to different organs and tissues of above‐ground parts for playing its multiple physiological functions once it is taken up by the roots. However, the mechanisms underlying Fe distribution are poorly understood.
Naoki Yamaji, Yuma Yoshioka, Sheng Huang, Takaaki Miyaji, Akimasa Sasaki, Jian Feng Ma   +5 more
wiley   +1 more source

Promoting effects of aluminum addition on chlorophyll biosynthesis and growth of two cultured iron‐limited marine diatoms

Limnology and Oceanography, Volume 69, Issue 5, Page 1157-1171, May 2024.
Abstract Aluminum (Al) may play a role in the ocean's capacity for absorbing atmospheric CO2 via influencing carbon fixation, export, and sequestration. Aluminum fertilization, especially in iron (Fe)‐limited high‐nutrient, low‐chlorophyll ocean regions, has been proposed as a potential CO2 removal strategy to mitigate global warming.
Linbin Zhou, Fengjie Liu, Eric P. Achterberg, Anja Engel, Peter G.C. Campbell, Claude Fortin, Liangmin Huang, Yehui Tan   +7 more
wiley   +1 more source

Enrichment of 54Fe by Electromagnetic Isotope Separator (EMIS) [PDF]

مجله علوم و فنون هسته‌ای, 2014
Electromagnetic Isotopes Separator (EMIS) has been installed in Karaj since 1991 in order to separate isotopes of a wide range of elements. Iron is successfully separated. Iron element has four stable isotopes, 58Fe, 57Fe, 56Fe and 54Fe.
Z Asadollahi, M. R Ghasemi, A Hashemizadeh, P Sarabadani, H Bakhtiari, S. M Mohati, H Seyedi, H Sadri, M Sharbatdaran   +8 more
doaj  

A Silicon-on-Insulator-Based Dual-Gain Charge-Sensitive Pixel Detector for Low-Noise X-ray Imaging for Future Astronomical Satellite Missions

Sensors, 2018
In this paper, we report on the development of a monolithic active pixel sensor for X-ray imaging using 0.2 µm fully depleted silicon-on-insulator (SOI)-based technology to support next generation astronomical satellite missions.
Sumeet Shrestha, Shoji Kawahito, Hiroki Kamehama, Syunta Nakanishi, Keita Yasutomi, Keiichiro Kagawa, Nobukazu Teranishi, Ayaki Takeda, Takeshi Go Tsuru, Ikuo Kurachi, Yasuo Arai   +10 more
doaj   +1 more source