Article
Geography, Physical
Hua-Rui Lei, Zhen-Yu Zhou, Yu-Jie Guo, Jin-Hua Du, Jia-Fu Zhang
Summary: This study used optically stimulated luminescence (OSL) dating to determine the age of Xibaimaying site, finding that it falls within the period of 122-36 ka. The results show that the flake tool industry of the Xibaimaying site is comparable to other sites, rather than being the youngest one, explaining why it is characterized as pure flake tool culture. The study also shed new light on the sedimentary processes in the site area, revealing complex geomorphologic processes.
QUATERNARY GEOCHRONOLOGY
(2022)
Article
Environmental Sciences
Yuning Feng, Shihong Du, Klaus Fraedrich, Xiuyuan Zhang
Summary: The Qaidam Basin is divided into different climate regions using the ISODATA cluster method, which captures the complex climate transformation processes and shows the causal relationships between climate factors. The study also reveals the spatial differences of climate gradients and identifies a wetter lake-affected area within the basin. The findings contribute to improving the ecological environment of the Qaidam Basin.
Article
Geography, Physical
Ying Lu, Xuefeng Sun, Hailong Zhao, Peiyang Tan
Summary: This study examines the relationship between the YFB site and the YF microblade site, as well as the chronological gap in human occupation in the Nihewan Basin, shedding light on the development of Paleolithic industries in the late Pleistocene and human activities in this area.
QUATERNARY RESEARCH
(2021)
Article
Geography, Physical
Hua Tu, Lan Luo, Chenglong Deng, Zilong Ou, Zhongping Lai, Guanjun Shen, Christopher J. Bae, Darryl Granger
Summary: The Nihewan Basin in northern China is a significant site for the study of biochronostratigraphy and early human evolution in East Asia. The study used radioisotopic dating to verify the ages of the Xiashagou Fauna, revealing consistency with previous estimates.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Zhouhai Xiong, Yingchang Cao, Chao Liang, Keyu Liu, Guanmin Wang, Rui Zhu, Ping Lei, Yanli Wang
Summary: This study found that authigenic microcrystalline quartz and albite develop together in lacustrine carbonate-rich fine-grained sedimentary rocks. The paragrowth and intergrowth of these minerals depend on the degree of supersaturation of ion concentration. Furthermore, the migration and enrichment of shale oil in calcareous fine-grained sedimentary rocks can be explained through the genetic mechanism of these authigenic minerals.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Computer Science, Artificial Intelligence
Jia Wan, Nikil Senthil Kumar, Antoni B. Chan
Summary: This article introduces a fine-grained crowd counting method, which categorizes crowds and counts the number of individuals in each category, suitable for practical applications. By constructing a new fine-grained counting dataset, proposing a two branch architecture, and two optimization strategies, the algorithm's prediction accuracy is effectively improved.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2021)
Article
Geosciences, Multidisciplinary
Aditi K. Dave, Alida Timar-Gabor, Zuzanna Kabacinska, Giancarlo Scardia, Nosir Safaraliev, Saida Nigmatova, Kathryn E. Fitzsimmons
Summary: This article introduces a novel method for tracking aeolian dust provenance by utilizing crystal lattice defects in quartz. The article proposes a fingerprinting method based on specific defect centers in quartz to distinguish sediments from different regions.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
De-Chen Su, Ai-Ping Sun, Zhao-Li Li, Song-Yong Chen, Zhen-Jie Wu
Summary: The Nihewan Basin in north China is a rift basin known for its rich paleontological fossils and ancient human remains. Recent field surveys have revealed the presence of soft-sediment deformation structures (SSDS) in the basin, indicating strong and frequent tectonic activity. These structures can serve as important indicators for stratigraphic correlation.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2022)
Article
Mechanics
You Wu, Tubing Yin, Qiang Li, Dengdeng Zhuang, Yongjun Chen, Zheng Yang
Summary: This paper introduces an analytical method to investigate the size effect on the unstable fracture toughness of fine-grained quartz-diorite. The method is validated by experimental results and reveals that unstable fracture toughness is a size-dependent parameter influenced by specimen size and initial crack length.
ENGINEERING FRACTURE MECHANICS
(2022)
Article
Computer Science, Artificial Intelligence
Chenguang Li, Jiaqing Liang, Yanghua Xiao, Haiyun Jiang
Summary: This paper proposes an unsupervised fine-grained concept generation framework called FGCGen, which utilizes knowledge bases to generate a large number of fine-grained concepts. Instead of extracting concepts from a corpus, FGCGen detects entity heads and modifiers from knowledge bases and combines them to generate fine-grained concepts. The proposed methods are evaluated on both Chinese and English datasets to demonstrate the strength of FGCGen, especially in constructing large-scale high-quality fine-grained taxonomies.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2023)
Article
Computer Science, Artificial Intelligence
Kun Ouyang, Yuxuan Liang, Ye Liu, Zekun Tong, Sijie Ruan, Yu Zheng, David S. Rosenblum
Summary: This paper presents a method for inferring fine-grained urban flows from coarse-grained data, aiming to bridge the gap between storage efficiency and data utility. The proposed method includes an inference network and a fusion subnet, which can effectively generate fine-grained flow distributions. Additionally, the authors propose a cascading model for progressive inference of larger-scale fine-grained urban flows.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Yue Li, Yougui Song, Kathryn E. Fitzsimmons, Aditi K. Dave, Yuming Liu, Xiulan Zong, Huanyu Sun, Huifang Liu, Rustam Orozbaev
Summary: This article discusses the study of dust transport processes and corresponding climate subsystems in loess deposits by analyzing the physical characteristics of the sediment. The study reveals differences in grain size characteristics between Eastern and Central Asian loess and suggests that fine particles in Central Asian loess may be derived from high-altitude transport by major climate subsystems such as the westerlies. However, the fine-grained component in East Asian loess seems to relate to transport associated with the East Asian winter monsoon. The study also questions the previous model that variations in fine particles in loess could reliably reflect the variability of higher-level westerlies.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Computer Science, Artificial Intelligence
Di Lin, Yi Wang, Lingyu Liang, Ping Li, C. L. Philip Chen
Summary: This paper presents a fine-grained recognition system that incorporates localization, segmentation, alignment, and classification in a unified deep neural network. By proposing a valve linkage function, the system can adaptively compromise errors of classification and alignment, and help update localization and segmentation. Experimental results confirm the effectiveness of the system.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2022)
Article
Computer Science, Artificial Intelligence
Zhen-Duo Chen, Xin Luo, Yongxin Wang, Shanqing Guo, Xin-Shun Xu
Summary: In this paper, a novel fine-grained hashing method called FISH is proposed to address the key issues of fine-grained feature extraction and feature refinement. The method achieves better retrieval performance and faster convergence compared with state-of-the-art methods.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2022)
Article
Computer Science, Artificial Intelligence
Zhicheng Sheng, Liqiang Nie, Meng Liu, Yinwei Wei, Zan Gao
Summary: In this paper, we propose FROND, a method for generating fine-grained talking videos. FROND addresses the challenges of capturing facial expressions, ensuring smooth transitions, and preserving details. Experimental results show that FROND outperforms several state-of-the-art baselines in both quantitative and qualitative evaluations.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2023)
Article
Geography, Physical
Monika Devi, Naveen Chauhan, Ashok K. Singhvi
Summary: Devi et al. (2022) suggested that post-violet infrared stimulated luminescence (pVIRSL) of K-feldspars has a near zero athermal fading rate. This study investigates the mechanism and suitability of the pVIRSL signal for dating applications. The results show that pVIRSL is a recuperated signal resulting from the eviction and recapture of charges in deep traps by violet stimulation and subsequent infrared stimulation. The pVIR-SAR protocol worked well for dating seven K-feldspar samples from various depositional environments.
QUATERNARY GEOCHRONOLOGY
(2024)
Article
Geography, Physical
Chloe Baldreki, Andrew Burnham, Martina Conti, Lucy Wheeler, Michael J. Simms, Lawrence Barham, Tom S. White, Kirsty Penkman
Summary: Aragonitic calcium carbonate mollusc shells with complex shell microstructures can be used for amino acid geochronologies in Africa. Different microstructural shell layers may have different protein compositions, requiring sampling strategies. The 3AL shell portion showed closer adherence to closed-system behavior and demonstrated the potential of fossil achatinids for building relative amino acid geochronologies across Africa.
QUATERNARY GEOCHRONOLOGY
(2024)
Article
Geography, Physical
Patrick Chiroiu, Alexandru L. Onaca, Adrien Favillier, Mircea Voiculescu, Christophe Corona, Petru Urdea, Markus Stoffel
Summary: Snow avalanches present a constant threat to mountainous regions worldwide, and understanding past avalanche events is crucial for managing and mitigating avalanche hazards and risks. In this study, dendrogeomorphic techniques were used to analyze 17 avalanche paths in a small region of the Fagaras Mountains. The analysis reconstructed 174 snow avalanche years across all paths and revealed widespread avalanche occurrence in the study area. The study emphasizes the importance of investigating multiple avalanche paths in a small, homogeneous area to gain a better understanding of snow avalanche activity at both path-scale and mountain range-scale.
QUATERNARY GEOCHRONOLOGY
(2024)
