Results 31 to 40 of about 806 (167)

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Evaluating the preoperative diagnostic value of 99mTc‐MIBI/99mTcO4− dual‐isotope SPECT/CT fusion imaging and ultrasonography in suspected primary hyperparathyroidism

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Primary hyperparathyroidism (PHPT) is a common endocrine disorder that often requires surgical intervention. Preoperative localization of parathyroid lesions is critical for successful surgery. This study compares the diagnostic value of 99mTc‐MIBI/99mTcO4− dual‐isotope SPECT/CT fusion imaging and ultrasonography (US) in patients ...
Yanmei Li, Danna Hou, Zhehao Lyu, Xingrong Lan, Ziyue Zhang, Yu Lu, Peng Fu, Huiqi Gao   +7 more
wiley   +1 more source

Experiment and Simulation Study on Migration of 90Sr in Weakly Weathered Granite

He huaxue yu fangshe huaxue
In this experiment, the migration of 90Sr in the weakly weathered granite was studied by using the penetration curve of 3H and 90Sr with the method of dynamic column experiment.
Rui-qing WANG, Chao CHEN, Tian XIE, Wen-jie CHEN, Jun ZHU   +4 more
doaj   +1 more source

The Chronology of Early Human Settlement in Three Gorges Region, China—Contribution of Coupled Electron Spin Resonance and Uranium-Series Dating Method

Frontiers in Earth Science, 2022
The Three Gorges region (TGR) located in the geographic center of China, is a transition zone between mountain and plain areas, and a probable migration corridor for hominins and other mammals between South and North China.
Fei Han, Jean-Jacques Bahain, Qingfeng Shao, Xuefeng Sun, Pierre Voinchet, Ping Xiao, Manchen Huang, Mengqi Li, Gongming Yin   +8 more
doaj   +1 more source

Preserved Through Hyperaridity, 150 Million Years of Exhumation and Strike‐Slip Deformation in the Atacama Coastal Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The Coastal Cordillera of northern Chile, in the forearc of the Andean subduction zone, provides an ideal site to evaluate exhumation above the oldest active subduction under extreme aridity. This range lies parallel to a sediment‐starved trench, has experienced hyperaridity since the Miocene, and is transected by the ∼1,000‐km‐long Atacama ...
T. F. Aránguiz‐Rago, A. R. Duvall, K. W. Huntington   +2 more
wiley   +1 more source

Evaluation of 99Mo production based on molten salt reactor off-gas extraction

He jishu
BackgroundThe extraction of 99Mo medical isotopes from off-gas of molten salt reactors (MSRs) has attracted significant attention. However, previous studies focused only on the estimation of 99Mo nuclide production in the reactor core, and limited ...
CHEN Liang, ZHU Guifeng, WANG Ziye, YAN Rui, ZOU Yang, XU Hongjie   +5 more
doaj   +1 more source

An innovative method for determining the diffusion coefficient of product nuclide

Nuclear Engineering and Technology, 2017
Diffusion is a crucial mechanism that regulates the migration of radioactive nuclides. In this study, an innovative numerical method was developed to simultaneously calculate the diffusion coefficient of both parent and, afterward, series daughter ...
Chih-Lung Chen, Tsing-Hai Wang
doaj   +1 more source

Integrating Multiple Approaches to Reveal the Spatiotemporal Pattern of Soil Erosion in Mollisol Watershed

Land Degradation &Development, Volume 37, Issue 14, Page 10355-10370, 30 August 2026.
ABSTRACT Although numerous prediction methods have been developed, scientific estimation of the spatiotemporal pattern of soil erosion at the watershed scale remains challenging. In this study, fallout radionuclides of 210Pbex and 137Cs were used to estimate average annual soil erosion and deposition in a Mollisol watershed in Northeast China ...
Shaoliang Zhang, Hao Wang, Ziliang Xiao, Pengke Yan, Lanqian Feng, Mingming Guo, Wei Hu, Xingyi Zhang   +7 more
wiley   +1 more source

Key Technologies for Internal Radiation Dose Evaluation in Wound Contaminated by Transuranic Nuclide

Yuanzineng kexue jishu
In order to solve the lack of evaluation mode, method and parameter for internal radiation dose evaluation in wound contaminated by transuranic nuclide in facilities and production lines such as spent fuel reprocessing and nuclear technology making ...
WANG Wei, WANG Yujian, LIANG Fanghua, PANG Hongchao
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, Volume 28, Issue 15, 5 August 2026.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source