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Permian carbonates of baoshan block, Western Yunnan and their paleoclimatic implications

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Science China Earth Sciences 2004年第5期47卷 385-392页

作者： YAN Jiaxin1, LIANG Dingyi1 & WU Ming2 1. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China 2. college of Chemistry and Life Sciences, South-Central University for Nationalities, Wuhan 430074, China Faculty of Earth Sciences China University of Geosciences Wuhan 430074 China college of Chemistry/Life Sciences South-Central Univ./Nationalities Wuhan 430074 China

Recently, much attention has been paid to the climatic significance of carbonates originating in shallow water. Permian carbonates of shallow shelf origin are present in the upper part of the Dingjiazhai Formation, the upper part of the Yongde Formation, and the Shazipo Formation on the baoshan block of Western Yunnan. Their skeleton and non-skeleton grain as-sociations have been investigated in this study. The carbonates of the Dingjiazhai Formation indicate a Bryonoderm (bryozoans-echinoderm) association without non-skeleton grains. The carbonates of Yongde and Shazipo formations show Chloroforam (green algae-foraminifers) association with peloids. Oolites develop in the Shazipo Formation. Based on the comparisons of grain association with coeval carbonates formed in different paleolatitudes (i.e. various paleo-climatic zones), the carbonates of the Dingjiazhai Formation were thought to have been accu-mulated in shelf environments of warm-temperate zone, and those of the Yongde and Shazipo formations in shelf environments of warm-water.

关键词： Early Permian, carbonate, paleoclimate, Western Yunnan.

Metallogenic Prediction of the Peripheral Areas of the Xiyi Concealed Lead-Zinc Deposit in baoshan City, Yunnan Province

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Acta Geologica Sinica(English Edition) 2015年第5期89卷 1775-1776页

作者： WU Wenxian DING Jun WANG Yonghua MENG Fujun ASKAR DENG Ke Chengdu Center of China Geological Survey college of Earth Sciences Chengdu University of Technology Yunnan Exploration Institute of Geology and Mineral Resources

The newly-discovered Xiyi lead-zinc deposit is a large deposit located in the north central baoshan block of the southern Sanjiang metallogenic belt section, Southwest *** surface of the deposit is mainly covered by eluvial-deluvial lateritic layer, without any mineralized outcrops. The main concealed orebody V3 is buffed in the depth of 300-500m. The orebodies are controlled by certain stratigraphic horizons, and most are cut by strata with a high angle, while a few occur along the strata. The direct wall rocks are calcisiltite, calclithite, bioclastic calcarenite,

关键词： Zn Metallogenic Prediction of the Peripheral Areas of the Xiyi Concealed Lead-Zinc Deposit in baoshan City Yunnan Province AMT Pb

Prediction models of the ionization coefficient and ionization cross-section based on multi-layer molecular parameters

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Plasma Science and Technology 2023年第5期25卷 93-103页

作者：邱睿周文俊郑宇侯华王宝山 School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072People’s Republic of China college of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Prediction models were proposed to estimate the reduced Townsend ionization coefficient and ionization cross-section.A shape function of the reduced Townsend ionization coefficient curves was derived from the ionization collision probability *** function had three parameters:the first ionization potential energy,A_(α),and B_(α).A_(α)and B_(α)were related to the molecule symmetry and *** polarization of molecules could characterize the molecule *** multi-layer molecular cross-section(MMCS)was proposed to describe the contributions of electrons and molecule radius on different molecule surfaces to collisions.A prediction model of the ionization cross-section was also proposed based on Aα.The molecule parameters were calculated by the Becke3–Lee–Yang–Parr(B3LYP)method and the 6–311G**basis *** used available data of 30 and 23 gases,respectively,to build the prediction models of reduced Townsend ionization coefficients and ionization *** relationships between the molecular parameters Aαand Bαand the ionization cross-section were built up via nonlinear *** determination coefficients R^(2)of Aα,Bα,and the ionization cross-section were 0.877,0.887,and 0.838,*** results showed that the accuracy of models was positively correlated with the molecule symmetry and reduced electric *** was mainly related to the accuracy of the MMCS model in predicting Aα.The MMCS model needed to be improved to describe the collision direction selectivity caused by the molecule *** a high reduced electric field,that error of Aαhad less influence on the prediction ***,the prediction results for single atoms with high symmetry were *** may be due to the absolute error of the model close to single atoms’reduced Townsend ionization *** models could provide the basis for gas insulation prediction and discharge calculations,especially for symmetric molecules under a high electric field.

关键词： Townsend ionization coefficient ionization cross-section gas discharge eco-friendly insulation gases

The regulating strategy of hierarchical structure and acidity in zeolites and application of gas adsorption: A review

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Chinese Chemical Letters 2024年第11期35卷 214-225页

作者： Jie Ma Jianxiang Wang Jianhua Yuan Xiao Liu Yun Yang Fei Yu Research Center for Environmental Functional Materials State Key Laboratory of Pollution Control and Resource ReuseCollege of Environmental Science and EngineeringTongji UniversityShanghai 200092China School of Civil Engineering Kashi UniversityKashi 844000China Shanghai Baoye Engineering Technology Ltd. Shanghai 200941China college of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China

Gas adsorption remains an attractive area of *** hierarchical structure can reduce diffusion limitations and facilitate molecular transport,while acid sites can be used as adsorption *** make zeolites widely used in the field of gas *** to obtain zeolite adsorbents with better adsorption properties by modulating the hierarchical structure and acid sites is a pressing issue *** review highlights the strategies to modulate the hierarchical structure as well as the acid sites;and then explains how these strategies are *** mechanism of zeolite adsorption on gases is then described in terms of these two ***,the adsorption properties of zeolites for certain gases under specific conditions are *** outlook of zeolite hierarchical structures and acid site modulation strategies is given.

关键词： Zeolite Regulation strategy Hierarchical structure Acid sites Gas adsorption

Identification of Neuro-Fuzzy Hammerstein Model Based on Probability Density Function

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Journal of Donghua University(English Edition) 2016年第5期33卷 703-707页

作者：方甜莲贾立 Shanghai Key Laboratory of Power Station Automation Technology College of Mechatronics Engineering and AutomationShanghai University

A new identification method of neuro-uzzy Hammerstein model based on probability density function(PDF) is presented,which is different from the idea that mean squared error(MSE) is employed as the index function in traditional identification ***,a neuro-fuzzy based Hammerstein model is constructed to describe the nonlinearity of Hammerstein process without any prior process ***,a kind of special test signal is used to separate the link parts of the Hammerstein *** specifically,the conception of PDF is introduced to solve the identification problem of the neuro-fuzzy Hammerstein *** antecedent parameters are estimated by a clustering algorithm,while the consequent parameters of the model are identified by designing a virtual PDF control system in which the PDF of the modeling error is estimated and controlled to converge to the *** proposed method not only guarantees the accuracy of the model but also dominates the spatial distribution of PDF of the model error to improve the generalization ability of the *** results show the effectiveness of the proposed method.

关键词： Probability clustering guarantees separate converge prior generalization conception squared nonlinearity

Temperature Rise Characteristics of Carbon-Containing Chromite Ore Fines in Microwave Field

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Journal of Iron and Steel Research International 2008年第1期15卷 1-5页

作者： LI Ning CHEN Jin YAN Hong FENG Xiu-mei CUI Hui-jun LIU Jin-ying college of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi China No. 12 Research Institute China Electronics Technology Group Corporation Beijing 100016 China

To avoid the nonuniform phenomena of heat and mass transfer of metallurgical powdery materials caused by conventional heating method,the temperature rise characteristics of carbon-containing chromite ore fines in the microwave field were investigated using microwave heating in a microwave metallurgical *** experimental results show that the carbon-containing chromite ore fines have better temperature rise characteristics in the microwave field at a frequency of 2.45 *** heated in the microwave field of 10 kW,the temperature of 1 kg carbon-containing chromite ore fines rose up to 1 100 ℃ in 7 min,at a temperature rise rate of 157.1（℃·min-1·kg-1）,whereas the temperature of 1 kg carbon-containing magnetite ore fines rose only up to 1 000 ℃ in 10 min,at a temperature rise rate of 100（℃·min-1·kg-1）.With increasing carbon-fitting ratios and by adding calcic lime,their heating effects changed regularly.

关键词： carbon-containing chromite ore fine carbon-containing magnetite ore fine microwave fieldl temperature rise characteristics

PIF4 interacts with ABI4 to serve as a transcriptional activator complex to promote seed dormancy by enhancing ABA biosynthesis and signaling

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Journal of Integrative Plant Biology 2024年第5期66卷 909-927页

作者： Xiaofeng Luo Yujia Dai baoshan Xian Jiahui Xu Ranran Zhang Muhammad Saad Rehmani Chuan Zheng Xiaoting Zhao Kaitao Mao Xiaotong Ren Shaowei Wei Lei Wang Juan He Weiming Tan Junbo Du Weiguo Liu Shu Yuan Kai Shu Shaanxi Key Laboratory of Qinling Ecological Intelligent Monitoring and Protection School of Ecology and EnvironmentNorthwestern Polytechnical UniversityXi'an 710129China Research&Development Institute of Northwestern Polytechnical University in ShenzhenShenzhen 518057China college of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China Institute of Ecological Agriculture Sichuan Agricultural UniversityChengdu 611130China college of Resources Sichuan Agricultural UniversityChengdu 611130China

Transcriptional regulation plays a key role in the control of seed dormancy,and many transcription factors(TFs)have been ***,the mechanisms underlying the interactions between different TFs within a transcriptional complex regulating seed dormancy remain largely ***,we showed that TF PHYTOCHROME-INTERACTING FACTOR4(PIF4)physically interacted with the abscisic acid(ABA)signaling responsive TF ABSCISIC ACID INSENSITIVE4(ABI4)to act as a transcriptional complex to promote ABA biosynthesis and signaling,finally deepening primary seed *** pif4 and abi4 single mutants exhibited a decreased primary seed dormancy phenotype,with a synergistic effect in the pif4/abi4 double ***4 binds to ABI4 to form a heterodimer,and ABI4 stabilizes PIF4 at the protein level,whereas PIF4 does not affect the protein stabilization of ***,both TFs independently and synergistically promoted the expression of ABI4 and NCED6,a key gene for ABA *** genetic evidence is also consistent with the phenotypic,physiological and biochemical analysis ***,this study revealed a transcriptional regulatory cascade in which the PIF4–ABI4 transcriptional activator complex synergistically enhanced seed dormancy by facilitating ABA biosynthesis and signaling.

关键词： ABA ABI4 PIF4 seed dormancy and germination transcriptional complex

Assessment of soil erosion risk on area alongside a typical section of road in Longitudinal Range-Gorge Region

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Chinese Science Bulletin 2006年第B11期51卷 80-87页

作者： YAO Huarong YANG Zhifeng CUI baoshan School of Environmental Sciences Beijing Normal University Beijing 100875 China college of Earth Science and Land Resources Chang'an University Xi'an 710054 China

Assessment of soil erosion risk on the area alongside a road not only provides important guidance to prevent and alleviate soil erosion, but also reflects a road built on soil erosion. The area alongside the road from Simao to Jinghong is chosen as the typical case;spatial analysis of GIS and BP neural network of artificial neural network are used as the methods;5 factors of 3 aspects, such as topography, climate and land cover, are chosen to assess soil erosion risk on the area alongside a section of typical road. The results are that the area proportion of easier erosion land (the value of erosion risk is from 2.5 to 3.5) is relatively bigger;and the erosion risk of an area alongside the road in a certain distance is higher than an area far away from the road. It shows that the road has an effect on soil erosion of the area alongside it;the effect can be directly or indirectly caused by road construction;and the effect is reflected by the land cover change (including land use and vegetation status) caused by road construction.

关键词：土壤侵蚀风险评估 BP 空间分析地质学

Influence of cosmic radiation on lymphocyte micronucleus,serum lipid peroxide and antioxidation capacity in aircrew members

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Chinese Science Bulletin 2002年第8期47卷 647-653页

作者： CHEN Weiru FENG Yingjin LIU Jiangkuang ZHANG Haili GUO Ying ZHANG Yan DUAN Shiying PENG Xintao SUN Tianping JIA baoshan ZHAO Junxian LI Hua Department of Aeromedicine Civil Aviation University of ChinaTianjin 300300China college of Medicine Nankai UniversityTianjin 300071China Xinjiang Aviaton Company Urumuqi 830016China

This study looks into the influence of cosmic radiation at high altitudes on human bodies. Results reveal that the cytokinesis-block micronuclei (CBMN) and conventional cultured micronuclei in peripheral blood lymphocytes, serum levels of lipid peroxide, superoxide dismutase, and the total antioxidation capacity by chemical colorimetry all increased significantly in aircrew members. There exists a linear relationship between the CBMN and the average annual effective doses of radiation received or the average annual flying hours. With both of them, a trend shows that the serum lipid peroxide levels increase as well. Either the lipid peroxide or CBMN can sensitively reflect the recent changes in flight load. These findings indicate that cosmic radiation impairs the stability of chromosomes and genome, and induces lipid oxidative damage in aircrews; Lymphocyte CBMN and serum lipid peroxide can be used as monitoring indicators in the cosmic radiation protection for aircrew members.

关键词： cosmic radiation aircrew micronucleus lipid peroxide antioxidation capacity.