Results 91 to 100 of about 23,734 (254)

Lithology Identification of Sandstone-type Uranium Ore Beds in the Songliao Basin based on Interpretable Machine Learning Model

Donghua Ligong Daxue Xuebao. Ziran Kexue Ban
[Objective] Traditional lithology identification methods suffer from low accuracy, slow recognition speed, and poor generalization performance, thus there is an urgent need for an efficient and accurate solution.
XIAO Kun, YANG Pengbo, YANG Yaxin, HU Xudong, LI Hongxing, HUANG Xiao, WANG Dianxue, JIAO Changwei, HE Rong, CHEN Mengshi, YIN Dening   +10 more
doaj   +1 more source

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +1 more source

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

Archaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba, D. A. Ahumada, H. Bagán, A. Tarancón, S. Eisenhofer, J. F. García   +5 more
wiley   +1 more source

Carbonate-Induced Self-Sealing of Near-Field Granite Fractures in Geological Disposal of High-Level Radioactive Waste: Coupled THMC Precipitation–Dissolution Mechanisms and Long-Term Performance Evaluation

Applied Sciences
Deep geological disposal is widely recognized as the most reliable strategy for the long-term isolation of high-level radioactive waste (HLW). In granitic host rocks, fractures in the near-field represent the primary pathways for groundwater flow and ...
Xiao Tian, Jia-Wei Wang, Ju Wang, Zhichao Zhou, Jiebiao Li, Xianzhe Duan, Nan Li, Wentao Xu, Biao Wang   +8 more
doaj   +1 more source

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

Archaeometry, EarlyView.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski, B. Bujalska, D. Popović, M. Baca, K. Zarzecka‐Szubińska, A. Lemanik, M. Hein, S. Talamo, P. Moska, H. Fewlass, D. Tokarz, Z. Jary, B. Przybylski, D. Bobak, M. Połtowicz‐Bobak, K. Wertz, A. Nadachowski   +16 more
wiley   +1 more source

Metallogenic Conditions and Prospecting Directions of Neogene Sandstone-type Uranium Deposits in Tarim Basin

Yuanzineng kexue jishu
The Tarim Basin is one of the main uranium-producing basins in northern China, but uranium deposits are primarily concentrated in the marginal areas of the basin.
GUO Qiang1, 2, 3, CHENG Yuhan1, 2, 3, YANG Wenlong4, LIU Nian1, 2, 3, XIAO Jing1, 2, 3, XU Qiang1, 2, 3
doaj   +1 more source

Glass from Teniky (Madagascar): Geochemical Evidence for Multiple Production Systems and Long‐Distance Exchange in the Mediaeval Indian Ocean

Archaeometry, EarlyView.
ABSTRACT The inland rock‐cut site of Teniky, located in the Isalo massif of southern Madagascar, represents an exceptional archaeological context recently dated to the 11th–12th centuries ad, corresponding to the early phases of settlement on the island.
Jean Rodier, Bernard Gratuze, Vincent Serneels   +2 more
wiley   +1 more source

Validation of Bayesian modeling approach of uncertainty in organ doses using post-mortem measurements

Scientific Reports
The biokinetic and dosimetry models recommended by the International Commission on Radiological Protection do not incorporate dosimetric uncertainty. Recently, Bayesian approach—offering distribution of dose estimates rather than a single point value—has
Maia Avtandilashvili, Martin Šefl, Joey Y. Zhou, Sergey Y. Tolmachev   +3 more
doaj   +1 more source

A Multi-Source Remote Sensing-Based AGB Synergistic Inversion Approach Integrating Terrain-Corrected Canopy Height and Forest-Type Heterogeneity

Remote Sensing
ICESat-2/ATLAS photon-counting LiDAR faces several challenges in regional-scale forest aboveground biomass (AGB) estimation. These challenges include sparse sampling, signal saturation, terrain effects, and limited model generalization.
Li Zhang, Zhenyang Hui, Duan Huang, Hua Liu, Xiaowei Xie   +4 more
doaj   +1 more source

Environmental Legitimation in A Global Context: Emerging Market Multinational Enterprises Versus Developed Market Multinational Enterprises

Business Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT The purpose of this paper is to study the differences and similarities between emerging market multinationals (EMNEs) and developed market multinationals (DMNEs) in their levels of adoption of environmental management policies and environmental disclosure practices when they increase their international diversification.
Nuria Esther Hurtado‐Torres, Eulogio Cordón‐Pozo, Efrén Gómez‐Bolaños, Maria Ruiz‐Castillo   +3 more
wiley   +1 more source