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2. Geometry Aligned Variational Transformer for Image-conditioned Layout Generation

Author

Cao, Yunning, Ma, Ye, Zhou, Min, Liu, Chuanbin, Xie, Hongtao, Ge, Tiezheng, and Jiang, Yuning

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Multimedia
Abstract

Layout generation is a novel task in computer vision, which combines the challenges in both object localization and aesthetic appraisal, widely used in advertisements, posters, and slides design. An accurate and pleasant layout should consider both the intra-domain relationship within layout elements and the inter-domain relationship between layout elements and the image. However, most previous methods simply focus on image-content-agnostic layout generation, without leveraging the complex visual information from the image. To this end, we explore a novel paradigm entitled image-conditioned layout generation, which aims to add text overlays to an image in a semantically coherent manner. Specifically, we propose an Image-Conditioned Variational Transformer (ICVT) that autoregressively generates various layouts in an image. First, self-attention mechanism is adopted to model the contextual relationship within layout elements, while cross-attention mechanism is used to fuse the visual information of conditional images. Subsequently, we take them as building blocks of conditional variational autoencoder (CVAE), which demonstrates appealing diversity. Second, in order to alleviate the gap between layout elements domain and visual domain, we design a Geometry Alignment module, in which the geometric information of the image is aligned with the layout representation. In addition, we construct a large-scale advertisement poster layout designing dataset with delicate layout and saliency map annotations. Experimental results show that our model can adaptively generate layouts in the non-intrusive area of the image, resulting in a harmonious layout design., Comment: To be published in ACM MM 2022

Published
2022

26. The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series

Author

Han, Yongming, primary, Zhisheng, An, additional, Lei, Dewen, additional, Zhou, Weijian, additional, Zhang, Luyuan, additional, Zhao, Xue, additional, Yan, Dongna, additional, Arimoto, Richard, additional, Rose, Neil L, additional, Roberts, Sarah L, additional, Li, Li, additional, Tang, Yalan, additional, Liu, Xingqi, additional, Fu, Xuewu, additional, Schneider, Tobias, additional, Hou, Xiaolin, additional, Lan, Jianghu, additional, Tan, Liangcheng, additional, Liu, Xingxing, additional, Hu, Jing, additional, Cao, Yunning, additional, Liu, Weiguo, additional, Wu, Feng, additional, Wang, Tianli, additional, Qiang, Xiaoke, additional, Chen, Ning, additional, Cheng, Peng, additional, Hao, Yifei, additional, Wang, Qiyuan, additional, Chu, Guoqiang, additional, Guo, Meiling, additional, Han, Mei, additional, Tan, Zhihai, additional, Wei, Chong, additional, and Dusek, Ulrike, additional

Published
2023
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28. Effect of Elemental Sulfur (S8) on Carbon Isotope Analysis of n-Alkanes.

Author

Mengmeng Cao, Cao, Yunning, Sun, Jimin, Liu, Weiguo, and Hou, Juzhi

Subjects
*CARBON isotopes, *CARBON analysis, *ISOTOPIC analysis, *SULFUR, *STABLE isotopes, *SULFUR cycle
Abstract

Stable carbon isotopes of long-chain n-alkanes in lake sediments have been used for reconstructing past environmental changes. Gas chromatography isotope ratio mass spectrometry coupled to a combustion unit is the commonly applied technique for compound-specific carbon isotope analysis. This paper shows that sulfur in the lacustrine sediment can cause severe interference during the mass spectrometric measurement, leading to significant biases in δ13C of n-alkane. The δ13C deviation could be resulted from additional 12C33S+, 13C32S+ at mass-to-charge ratio (m/z) 45, and 12C34S+, H2C32S+at m/z 46, respectively. Such elemental sulphur interference can be eliminated by the activated copper in the pretreatment procedure. [ABSTRACT FROM AUTHOR]

Published
2023
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36. sj-docx-1-anr-10.1177_20530196231167019 – Supplemental material for The Sihailongwan Maar Lake, northeastern China as a candidate Global Boundary Stratotype Section and Point for the Anthropocene Series

Author

Han, Yongming, Zhisheng, An, Lei, Dewen, Zhou, Weijian, Zhang, Luyuan, Zhao, Xue, Yan, Dongna, Arimoto, Richard, Rose, Neil L, Roberts, Sarah L, Li, Li, Tang, Yalan, Liu, Xingqi, Fu, Xuewu, Schneider, Tobias, Hou, Xiaolin, Lan, Jianghu, Tan, Liangcheng, Liu, Xingxing, Hu, Jing, Cao, Yunning, Liu, Weiguo, Wu, Feng, Wang, Tianli, Qiang, Xiaoke, Chen, Ning, Cheng, Peng, Hao, Yifei, Wang, Qiyuan, Chu, Guoqiang, Guo, Meiling, Han, Mei, Tan, Zhihai, Wei, Chong, and Dusek, Ulrike

Subjects
Geography
Abstract

Supplemental material, sj-docx-1-anr-10.1177_20530196231167019 for The Sihailongwan Maar Lake, northeastern China as a candidate Global Boundary Stratotype Section and Point for the Anthropocene Series by Yongming Han, An Zhisheng, Dewen Lei, Weijian Zhou, Luyuan Zhang, Xue Zhao, Dongna Yan, Richard Arimoto, Neil L Rose, Sarah L Roberts, Li Li, Yalan Tang, Xingqi Liu, Xuewu Fu, Tobias Schneider, Xiaolin Hou, Jianghu Lan, Liangcheng Tan, Xingxing Liu, Jing Hu, Yunning Cao, Weiguo Liu, Feng Wu, Tianli Wang, Xiaoke Qiang, Ning Chen, Peng Cheng, Yifei Hao, Qiyuan Wang, Guoqiang Chu, Meiling Guo, Mei Han, Zhihai Tan, Chong Wei and Ulrike Dusek in The Anthropocene Review

Published
2023
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39. Decoupled Land and Ocean Temperature Trends in the Early‐Middle Pleistocene

Author

Lu, Hongxuan, primary, Liu, Weiguo, additional, Yang, Hong, additional, Leng, Qin, additional, Liu, Zhonghui, additional, Cao, Yunning, additional, Hu, Jing, additional, Sheng, Weijuan, additional, Wang, Huanye, additional, Wang, Zheng, additional, Zhang, Zeke, additional, Sun, Youbin, additional, Zhou, Weijian, additional, and An, Zhisheng, additional

Published
2022
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42. Evaluating the accuracy and reliability of compound‐specific carbon isotopic analysis using gas chromatography‐combustion‐isotope ratio mass spectrometry with the addition of a reduction furnace.

Author

Cao, Yunning, Liu, Hu, Hu, Jing, Wang, Zheng, Zhu, Mengshu, Liu, Xu, Yang, Kaili, Gan, Haijiao, and Liu, Weiguo

Subjects
*ISOTOPIC analysis, *CARBON isotopes, *COMBUSTION kinetics, *CARBON analysis, *MASS spectrometry, *FATTY acid methyl esters, *FURNACE atomic absorption spectroscopy
Abstract

Rationale: Gas chromatography‐combustion‐isotope ratio mass spectrometry (GC/C/IRMS) is widely used for compound‐specific carbon isotopic analysis. However, current isotopic analysis systems utilize the GC IsoLink combustion reactor, and independent reduction furnaces are not implemented. Therefore, whether this limitation in furnace use affects the precision of compound‐specific carbon isotopic analysis needs to be evaluated. Methods: We attempted to add a separate reduction furnace to the GC IsoLink interface and compared the δ13C values of n‐alkanes (including C and H elements), fatty acid methyl ester (including C, H, and O elements), caffeine (USGS61 and USGS62, including C, H, O, and N elements), and 9‐ethylcarbazole (including C, H, and N elements) before and after the addition of the reduction furnace using the GC IsoLink combustion reactor. Results: For n‐alkanes and fatty acid methyl esters, the δ13C differences between the measured values and their standard values were basically falling within 0.5‰ whether or not an independent reduction furnace was added. However, for the nitrogen‐containing compounds (caffeine and 9‐ethylcarbazole), the δ13C differences between the measured values and their standard values were much larger without an independent reduction furnace (1.0–3.71‰ for USGS61, 1.78–2.19‰ for USGS62, and 0.39–1.13‰ for 9‐ethylcarbazole) than with a reduction furnace (−0.31–0.68‰ for USGS61, −0.44–0.06‰ for USGS62, and −0.04–0.25‰ for 9‐ethylcarbazole). Conclusions: The addition of an independent reduction furnace had no significant effect on the δ13C of n‐alkanes and fatty acid methyl esters, but it had a significant effect on the δ13C of nitrogen‐containing compounds. It is suggested that GC IsoLink needs an independent reduction furnace to effectively eliminate the interference of NOx on CO2 isotopic determination to improve the accuracy of δ13C for nitrogen‐containing compounds. [ABSTRACT FROM AUTHOR]

Published
2023
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43. The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series

Author

Waters, Colin N., Turner, Simon D., Zalasiewicz, Jan, Head, Martin J., Han, Yongming, Zhisheng, An, Lei, Dewen, Zhou, Weijian, Zhang, Luyuan, Zhao, Xue, Yan, Dongna, Arimoto, Richard, Rose, Neil L, Roberts, Sarah L, Li, Li, Tang, Yalan, Liu, Xingqi, Fu, Xuewu, Schneider, Tobias, Hou, Xiaolin, Lan, Jianghu, Tan, Liangcheng, Liu, Xingxing, Hu, Jing, Cao, Yunning, Liu, Weiguo, Wu, Feng, Wang, Tianli, Qiang, Xiaoke, Chen, Ning, Cheng, Peng, Hao, Yifei, Wang, Qiyuan, Chu, Guoqiang, Guo, Meiling, Han, Mei, Tan, Zhihai, Wei, Chong, and Dusek, Ulrike

Abstract

Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake’s varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology for the site. Time series records of radioactive (239,240Pu, 129I and soot 14C), chemical (spheroidal carbonaceous particles, polycyclic aromatic hydrocarbons, soot, heavy metals, δ13C, etc.), physical (magnetic susceptibility and grayscale) and biological (environmental DNA) indicators all show rapid changes in the mid-20th century, coincident with clear lithological changes of the sediments. Statistical analyses of these proxies show a tipping point in 1954 CE. 239,240Pu activities follow a typical unimodal globally-distributed profile, and are proposed as the primary marker for the Anthropocene. A rapid increase in 239,240Pu activities at 88 mm depth in core SHLW21-Fr-13 (1953 CE) is synchronous with rapid changes of other anthropogenic proxies and the Great Acceleration, marking the onset of the Anthropocene. The results indicate that Sihailongwan Maar Lake is an ideal site for the Anthropocene GSSP.

Published
2023
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44. Salinity-controlled isomerization of lacustrine brGDGTs impacts the associated MBT5ME' terrestrial temperature index

Author

Wang, Huanye, primary, Liu, Weiguo, additional, He, Yuxin, additional, Zhou, Aifeng, additional, Zhao, Hui, additional, Liu, Hu, additional, Cao, Yunning, additional, Hu, Jing, additional, Meng, Bowen, additional, Jiang, Jiawei, additional, Kolpakova, Marina, additional, Krivonogov, Sergey, additional, and Liu, Zhonghui, additional

Published
2021
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49. Multiple expansions of [C.sub.4] plant biomass in East Asia since 7 Ma coupled with strengthened monsoon circulation

Author

An, Zhisheng, Huang, Yongsong, Liu, Weiguo, Guo, Zhengtang, Clemens, Steven, Li, Li, Prell, Warren, Ning, Youfeng, Cai, Yanjun, Zhou, Weijian, Lin, Benhai, Zhang, Qingle, Cao, Yunning, Qiang, Xiaoke, Chang, Hong, and Wu, Zhenkun

Subjects
Vegetation and climate -- Research, Monsoons -- Research, Geology -- Research, Earth sciences
Abstract

The expansion of plants using the [C.sub.4] photosynthetic pathway is one of the most prominent changes in the global ecosystem during the Cenozoic Era. A significant late Miocene expansion is well documented. However, the existence and cause of subsequent expansions are still not clear, owing in part to the lack of long, continuous climate-vegetation records. Here we present two high-resolution carbon isotope time series, covering the past 7 m.y., derived from eolian deposits on the Chinese Loess Plateau. The data indicate three intervals of significant [C.sub.4] plant expansions within the semiarid monsoonal region of East Asia (ca. 2.9-2.7 Ma, 1.3-0.9 Ma, and 0.6 Ma-present). These expansions covary with strengthened East Asian summer monsoon circulation. We conclude that in East Asia, large-scale late Miocene [C.sub.4]/[C.sub.3] vegetation changes in semiarid areas have been primarily driven by warm seasonal precipitation and temperature variations associated with changes in monsoon circulation. Keywords: [C.sub.4] plant expansion, carbon isotope, summer monsoon, Chinese Loess Plateau, Miocene.

Published
2005

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