中国科学院机构知识库网格系统: 检索

Numerical evaluation of virtual mass force coefficient of single solid particles in acceleration 期刊论文 OAI收割
CHINESE JOURNAL OF CHEMICAL ENGINEERING, 2022, 卷号: 41, 页码: 210-219
作者: Mao, Zai-Sha; Yang, Chao

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收藏 | 浏览/下载：26/0 | 提交时间：2022/06/15

Total drag coefficient Virtual mass force Solid particle Numerical simulation Vorticity-stream function formulation

Comparison of simulated backgrounds with in-orbit observations for HE, ME, and LE onboard Insight-HXMT 期刊论文 OAI收割
Astrophysics and Space Science, 2020, 卷号: 365, 页码: 158
作者: HXMT

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收藏 | 浏览/下载：51/0 | 提交时间：2022/02/08

Insight-HXMT Geant4 simulation Background observation Astrophysics - Instrumentation and Methods for Astrophysics Abstract: Insight-HXMT, the first X-ray astronomical satellite in China, aims to reveal new sources in the Galaxy and to study fundamental physics of X-ray binaries from 1 to 250 keV. It has three collimated telescopes, the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME), and the Low Energy X-ray telescope (LE). Before the launch, in-orbit backgrounds of these three telescopes had been estimated through Geant4 simulation, in order to investigate the instrument performance and the achievement of scientific goals. In this work, these simulated backgrounds are compared with in-orbit observations. Good agreements are shown for all three telescopes. For HE, (1) the deviation of the simulated background rate after two years of operation in space is 5 % from the observation (2) the total background spectrum and the relative abundance of the 67 keV line show long-term increases both in simulations and observations. For ME, (1) the deviation of simulated background rate is within 15 % from the observation, and (2) there are no obvious long-term increase features in the background spectra of simulations and observations. For LE, the background level given by simulations is also consistent with observations. The consistencies of these comparisons validate that the Insight-HXMT mass model, i.e., space environment components and models adopted, physics processes selected, and detector constructions built, is reasonable. However, the line features at 7.5 and 8.0 keV, which are obvious in the observed spectra of LE, are not evident in simulations. This might result from uncertainties in the LE constructions.

Study of the a(1)(1260) resonance in the gamma p -> pi(+)pi(+)pi(-)n reaction 期刊论文 OAI收割
CHINESE PHYSICS C, 2019, 卷号: 43, 期号: 6, 页码: 6
作者: Zhang, Xu; Xie, Ju-Jun

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收藏 | 浏览/下载：57/0 | 提交时间：2019/11/10

photoproduction mass distributions total cross-section a(1)(1260)

Intervening Effects of Total Alkaloids of Corydalis saxicola Bunting on Rats With Antibiotic-Induced Gut Microbiota Dysbiosis Based on 16S rRNA Gene Sequencing and Untargeted Metabolomics Analyses 期刊论文 OAI收割
FRONTIERS IN MICROBIOLOGY, 2019, 卷号: 10, 页码: 18
作者: Liu, Xi; Zheng, Hua; Lu, Rigang; Huang, Huimin; Zhu, Hongjia

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收藏 | 浏览/下载：121/0 | 提交时间：2019/10/14

antibiotic-induced gut microbiota dysbiosis 16S rRNA gene sequencing analysis untargeted metabolomics total alkaloids of Corydalis saxicola Bunting (TACS) ultra-performance liquid chromatography-quadrupole time-of-flight/mass spectrometry

Intervening Effects of Total Alkaloids of Corydalis saxicola Bunting on Rats With Antibiotic-Induced Gut Microbiota Dysbiosis Based on 16S rRNA Gene Sequencing and Untargeted Metabolomics Analyses 期刊论文 OAI收割
FRONTIERS IN MICROBIOLOGY, 2019, 卷号: 10, 页码: 18
作者: Liu, Xi; Zheng, Hua; Lu, Rigang; Huang, Huimin; Zhu, Hongjia

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收藏 | 浏览/下载：34/0 | 提交时间：2019/10/17

antibiotic-induced gut microbiota dysbiosis 16S rRNA gene sequencing analysis untargeted metabolomics total alkaloids of Corydalis saxicola Bunting (TACS) ultra-performance liquid chromatography-quadrupole time-of-flight/mass spectrometry

Plant community responses to changes in permafrost thaw depth in the Great Hing'an Mountain Valleys, China 期刊论文 OAI收割
PHYTOCOENOLOGIA, 2018, 卷号: 48, 期号: 3, 页码: 273-281
作者: Ren, Baihui; Han, Fenglin; Hu, Yuanman; Chang, Yu; Thiele, Jan

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收藏 | 浏览/下载：43/0 | 提交时间：2018/09/10

Biodiversity Depth Of The Active Layer Of Permafrost Great Hing'an Mountain Plant Community Plant Total Dry Mass

Plant community responses to changes in permafrost thaw depth in the Great Hing'an Mountain Valleys, China 期刊论文 OAI收割
PHYTOCOENOLOGIA, 2018, 期号: 3, 页码: 273-281
作者: Ren, Baihui; Han, Fenglin; Hu, Yuanman; Chang, Yu; Thiele, Jan

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收藏 | 浏览/下载：20/0 | 提交时间：2018/09/10

biodiversity depth of the active layer of permafrost Great Hing'an Mountain plant community plant total dry mass

Plant community responses to changes in permafrost thaw depth in the Great Hing'an Mountain Valleys, China 期刊论文 OAI收割
PHYTOCOENOLOGIA, 2018, 期号: 3, 页码: 273-281
作者:

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收藏 | 浏览/下载：22/0 | 提交时间：2018/09/10

biodiversity depth of the active layer of permafrost Great Hing'an Mountain plant community plant total dry mass

Altitudinal gradients of soil and vegetation carbon and nitrogen in a high altitude nature reserve of Karakoram ranges SCI/SSCI论文 OAI收割
2016
作者: Shedayi A. A.; Xu, M.; Naseer, I.; Khan, B.

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收藏 | 浏览/下载：29/0 | 提交时间：2017/11/09

Soil organic carbon Soil inorganic carbon Soil total nitrogen Soil total carbon Leaf total carbon Leaf total nitrogen Altitude Forest type Litter mass Herbaceous biomass organic-carbon inorganic carbon climate-change forest floor mineralization china nitrification accumulation management emissions

A new model for forecasting total dissolved solids evolution using hydrodynamics parameters in regional deep confined aquifers of north china plain 期刊论文 iSwitch采集
Environmental earth sciences, 2015, 卷号: 73, 期号: 12, 页码: 7811-7823
作者: Zhang, Min; Wang, Mingyu; Liu, Bo; Wan, Changyuan; Li, Wei

收藏 | 浏览/下载：30/0 | 提交时间：2019/05/10

Water-head Total dissolved solids Energy conversation Mass conservation Fractal theory