中国科学院机构知识库网格系统: 检索

Accurate prediction of spatial distribution of soil potentially toxic elements using machine learning and associated key influencing factors identification: A case study in mining and smelting area in southwestern China 期刊论文 OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2024, 卷号: 478, 页码: 135454
作者: Li, Kai; Guo, Guanghui; Zhang, Degang; Lei, Mei; Wang, Yingying

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收藏 | 浏览/下载：14/0 | 提交时间：2024/09/19

Potentially toxic elements Machine learning Predictive accuracy SHAP analysis Relative importance analysis

glmm.hp: an R package for computing individual effect of predictors in generalized linear mixed models 期刊论文 OAI收割
JOURNAL OF PLANT ECOLOGY, 2022, 卷号: 15, 期号: 6, 页码: 1-6
作者: Lai, Jiangshan; Zou, Yi; Zhang, Shuang; Zhang, Xiaoguang; Mao, Lingfeng

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收藏 | 浏览/下载：23/0 | 提交时间：2023/02/02

coefficient of determination commonality analysis fixed effect GLMM hierarchical partitioning marginal R-2 relative importance variance partitioning

Generalizing hierarchical and variation partitioning in multiple regression and canonical analyses using the rdacca.hp R package 期刊论文 OAI收割
METHODS IN ECOLOGY AND EVOLUTION, 2022, 卷号: 13, 期号: 4, 页码: 782-788
作者: Lai, Jiangshan; Zou, Yi; Zhang, Jinlong; Peres-Neto, Pedro R.

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收藏 | 浏览/下载：11/0 | 提交时间：2024/03/07

averaging over orderings CCA commonality analysis constrained ordination db-RDA explained variation RDA relative importance

A new integrated SSCs safety classification method and a case study on CN HCCB TES 期刊论文 OAI收割
ANNALS OF NUCLEAR ENERGY, 2020, 卷号: 145
作者: Sun, Ming; Wang, Jin; Wang, Fang; Yu, Jie; Yin, Yuan

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收藏 | 浏览/下载：35/0 | 提交时间：2020/10/29

SSCs Safety classification Fault tree analysis Importance CN HCCB TES

The dynamic benefit compensation in a multi-reservoir system based on importance analysis 期刊论文 OAI收割
JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 249, 页码: 12
作者: Chen, Yizhong; Li, Jing; Lu, Hongwei; Xia, Jun

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收藏 | 浏览/下载：26/0 | 提交时间：2020/05/19

Multi-reservoir system Importance analysis Benefit compensation System reliability Satisfaction degree

The dynamic benefit compensation in a multi-reservoir system based on importance analysis 期刊论文 OAI收割
JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 249, 页码: 12
作者: Chen, Yizhong; Li, Jing; Lu, Hongwei; Xia, Jun

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收藏 | 浏览/下载：4/0 | 提交时间：2020/05/19

Multi-reservoir system Importance analysis Benefit compensation System reliability Satisfaction degree

An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242 期刊论文 OAI收割
Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101
作者: HXMT

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收藏 | 浏览/下载：61/0 | 提交时间：2022/02/08

accretion accretion disks black hole physics X-rays: binaries time Astrophysics - High Energy Astrophysical Phenomena Abstract:
Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions.
Methods: Within the multitude of observations of Swift J1658.2-4242 during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst.
Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.

The Impact of Vegetation Successional Status on Slope Runoff Erosion in the Loess Plateau of China 期刊论文 OAI收割
WATER, 2019, 卷号: 11, 期号: 12, 页码: 21
作者: Chang, Enhao; Li, Peng; Li, Zhanbin; Su, Yuanyi; Zhang, Yi

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收藏 | 浏览/下载：52/0 | 提交时间：2020/05/19

vegetation community vegetation importance value root system soil erosion grey correlation analysis

Evaluation and Comparison of Random Forest and A-LSTM Networks for Large-scale Winter Wheat Identification 期刊论文 OAI收割
REMOTE SENSING, 2019, 卷号: 11, 期号: 14, 页码: 21
作者: He, Tianle; Xie, Chuanjie; Liu, Qingsheng; Guan, Shiying; Liu, Gaohuan

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收藏 | 浏览/下载：46/0 | 提交时间：2020/03/23

winter wheat identification random forest A-LSTM pixel-mixing effect variable importance analysis

Evaluation and Comparison of Random Forest and A-LSTM Networks for Large-scale Winter Wheat Identification 期刊论文 OAI收割
REMOTE SENSING, 2019, 卷号: 11, 期号: 14, 页码: 21
作者: He, Tianle; Xie, Chuanjie; Liu, Qingsheng; Guan, Shiying; Liu, Gaohuan

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收藏 | 浏览/下载：31/0 | 提交时间：2020/03/23

winter wheat identification random forest A-LSTM pixel-mixing effect variable importance analysis