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Sedimentary environment shift and organic matter enrichment mechanism in response to volcanic ash influence: A case study of the Permian Lucaogou Formation, Santanghu Basin,NW China

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Journal of Palaeogeography 2024年第4期13卷 793-822页

作者： Miao Yu Gang Gao Miao Liu Hui Liang Ji-Lun Kang Xiong-Fei Xu xin-ying zhao College of Geosciences China University of Petroleum (Beijing) National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) Petro China Tuha Oilfield Company

The second member of the Lucaogou Formation （P2l2） in the Tiaohu and Malang Sags of the Santanghu Basin （study area） underwent periodic volcanic activity and frequent lithological *** study comprehensively analyzed the organic geochemistry,mineral composition,organic matter （OM） types,volcanic cycle,and palaeoenvironment of shale in the study *** such as total organic carbon （TOC）,rock pyrolysis （Rock-Eval）,organic petrology,scanning electron microscopy （SEM） with energydispersive spectrum （EDS） analysis,X-ray diffraction （XRD）,trace elements,and saturated hydrocarbon gas chromatography and mass spectrometry （GC-MS） were *** findings suggest that limited terrigenous input during the sedimentary period of the P2l2led to the deposition of a distinctive mixture of volcanic ash （felsic） and carbonate （dolomite and calcite）,with a low average clay mineral content of 6%.The P2l2shale emerged as a high-quality source rock,predominantly composed of type I and II kerogens,with moderate OM *** deposition environment was characterized by hot and arid conditions,high salinity,and intensive reducibility,which was favorable for algae development and conducive to OM ***,two lamalginite types,labeled as lamalginite“A”and lamalginite“B,”were ***“B”-rich shales were deposited in a hotter and drier climate compared to lamalginite“A”-rich ***“B”-rich shale inexhibited high levels of C28regular sterane and β-carotenes,distinguishing it from lamalginite“A”-rich shale.A comprehensive analysis involving organic petrology,SEM,sedimentary environment,and biomarker characteristics suggests that lamalginite“B”may be a salt-tolerant green alga,while lamalginite“A”may be a ***,an OM enrichment model for the P2l2shale was established.

关键词： Volcanic ash Geochemistry Petrology Palaeoenvironment Lamalginite

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Variation Characteristics of Root Traits of Different Alfalfa Cultivars under Saline-Alkaline Stress and their Relationship with Soil Environmental Factors

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Phyton-International Journal of Experimental Botany 2024年第1期93卷 29-43页

作者： Tian-Jiao Wei Guang Li Yan-Ru Cui Jiao Xie xing-Ai Gao xing Teng xin-ying zhao Fa-Chun Guan Zheng-Wei Liang Northeast Agricultural Research Center of China Jilin Academy of Agricultural SciencesChangchun130033China Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun130102China

Soil salinization is the main factor that threatens the growth and development of plants and limits the increase of *** is of great significance to study the key soil environmental factors affecting plant root traits to reveal the adaptation strategies of plants to saline-alkaline-stressed soil *** this study,the root biomass,root morphological parameters and root mineral nutrient content of two alfalfa cultivars with different sensitivities to alkaline stress were analyzed with black soil as the control group and the mixed saline-alkaline soil with a ratio of 7:3 between black soil and saline-alkaline soil as the saline-alkaline treatment *** the same time,the correlation analysis of soil salinity indexes,soil nutrient indexes and the activities of key enzymes involved in soil carbon,nitrogen and phosphorus cycles was carried *** results showed that compared with the control group,the pH,EC,and urease(URE)of the soil surrounding the roots of two alfalfa cultivars were significantly increased,while soil total nitrogen(TN),total phosphorus(TP),organic carbon(SOC),andα-glucosidase activity(AGC)were significantly decreased under saline-alkaline *** was no significant difference in root biomass and root morphological parameters of saline-alkaline tolerant cultivar GN under saline-alkaline *** number of root tips(RT),root surface area(RS)and root volume(RV)of AG were reduced by 61.16%,44.54%,and 45.31%,respectively,compared with control *** ratios of K^(+)/Na^(+),Ca^(2+)/Na^(+)and Mg^(2+)/Na^(+)of GN were significantly higher than those of AG(p<0.05).The root fresh weight(RFW)and dry weight(RDW),root length(RL),RV and RT of alfalfa were positively regulated by soil SOC and TN,but negatively regulated by soil pH,EC,and URE(p<0.01).Root Ca^(2+)/Na+ratio was significantly positively correlated with soil TN,TP and SOC(p<0.01).The absorption of Mg and Ca ions in roots is significantly negatively regulated by soilβ-glucosidase ac

关键词： Saline-alkaline stress alfalfa root traits soil environmental factors correlation analysis

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Dislocation stability in three-phase nanocomposites with imperfect interface

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Acta Mechanica Sinica 2014年第5期30卷 693-702页

作者： ying-xin zhao You-Wen Liu Qi-Hong Fang State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body/College of Mechanical and Vehicle Engineering Hunan University

Interface imperfection can significantly affect the mechanical properties and failure mechanisms as well as the strength and toughness of nanocomposites. The elastic behavior of a screw dislocation in nanoscale coating with imperfect interface is studied in the three-phase composite cylinder model. The interface between inner nanoin- homogeneity and intermediate coating is assumed as perfectly bonded. The bonding between intermediate coating and outer matrix is considered to be imperfect with the assumption that interface imperfection is uniform, and a linear spring model is adopted to describe the weakness of imperfect interface. The explicit expression for image force acting on dislocation is obtained by means of a complex variable method. The analytic results indicate that inner interface effect and outer interface imperfection, simultaneously taken into account, would influence greatly image force, equilibrium position and stability of dislocation, and various critical parameters that would change dislocation stability. The weaker interface is a very strong trap for glide dislocation and, thus, a more effective barrier for slip transmission.

关键词： Nanocomposites -Dislocation Imperfect inter- face - Interface effect Complex variable method

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High Performance Affinity Chromatography of Antithrombin III Based on Monodisperse Poly (glycidyl methacrylate) Beads

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Chinese Chemical Letters 2001年第5期12卷 443-446页

作者： ying xin zhao Di Hua SHANGGUAN Rui zhao Tian Sheng SHU Guo Quan LIU Center for Molecular Science Institute of Chemistry Chinese Academy of ScienceBeijing 100080

A new approach for the separation of antithrombin III with high performance affinity chromatography (HPAC) was described. A novel monodisperse, non-porous, cross-linked poly (glycidyl methacrylate) beads (PGMA) were used as the affinity support. With the water-soluble carbodiimide, heparin was linked covalently to amino-PGMA-beads, which was prepared by amination of PGMA. The adsorbent obtained exhibits high binding activity to antithrombin III (ATIII), good resolution and excellent mechanical properties and can be used under high flow rate.

关键词： High performance affinity chromatography antithrombin III heparin

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Selective separation and enrichment of proteins in aqueous two-phase extraction system

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Chinese Chemical Letters 2009年第9期20卷 1100-1102页

作者： Feng Qu Hao Qin Min Dong Dong Xu zhao xin ying zhao Jing Hua Zhang School of Life Science Beijing Institute of Technology Beijing 100081 China Beijing Center for Physical and Chemical Analysis Beijing 100089 China

A simple aqueous two-phase extraction system （ATPS） of PEG/phosphate was proposed for selective separation and enrichment of proteins. The combination of ATPE with HPLC was applied to identify the partition of proteins in two phases. Five proteins （bovine serum albumin, Cytochrome C, lysozyme, myoglobin, and trypsin） were used as model proteins to study the effect of phosphate concentration and pH on proteins partition. The PEG/phosphate system was firstly applied to real human saliva and plasma samples, some proteins showed obviously different partition in two phases. The primary results manifest the selective separation and enrichment of proteins in ATPS provided the potential for high abundance proteins depletion in proteomics. ~ 2009 Feng Qu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Aqueous two-phase extraction Saliva and plasma Proteins Selective separation and enrichment

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Threshold Selection and Resource Allocation for Quantized Identification

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Journal of Systems Science & Complexity 2024年第1期37卷 204-229页

作者： WANG ying LI xin zhao Yanlong ZHANG Ji-Feng Key Laboratory of Systems and Control Institute of Systems ScienceAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China

This paper is concerned with the optimal threshold selection and resource allocation problems of quantized identification, whose aims are improving identification efficiency under limited resources. Firstly, the first-order asymptotically optimal quantized identification theory is extended to the weak persistent excitation condition. Secondly, the characteristics of time and space complexities are established based on the Cramér-Rao lower bound of quantized systems. On these basis, the optimal selection methods of fixed thresholds and adaptive thresholds are established under aperiodic signals, which answer how to achieve the best efficiency of quantized identification under the same time and space complexity. In addition, based on the principle of maximizing the identification efficiency under a given resource, the optimal resource allocation methods of quantized identification are given for the cases of fixed thresholds and adaptive thresholds, respectively, which show how to balance time and space complexity to realize the best identification efficiency of quantized identification.

关键词： Quantized output resource allocation system identification threshold selection.

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Open-circuit voltage analysis of p-i-n type amorphous silicon solar cells deposited at low temperature

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Chinese Physics B 2011年第8期20卷 403-407页

作者： Ni Jian Zhang Jian-Jun Cao Yu Wang Xian-Bao Li Chao Chen xin-Liang Geng xin-Hua zhao ying Institute of Photo-electronics Thin Film Devices and Technique of Nankai University Key Laboratory of Photo-electronics Thin Film Devices and Technique of Tianjin Key Laboratory of Photo-electronicInformation Science and Technology of Ministry of Education (Nankai University) Tianjin 300071 China

This paper identifies the contributions of p-a-SiC：H layers and i-a-Si：H layers to the open circuit voltage of p-i-n type a-Si：H solar cells deposited at a low temperature of 125℃. We find that poor quality p-a-SiC：H films under regular conditions lead to a restriction of open circuit voltage although the band gap of the i-layer varies widely. A significant improvement in open circuit voltage has been obtained by using high quality p-~SiC：H films optimized at the ＂low-power regime＂ under low silane flow rates and high hydrogen dilution conditions.

关键词： amorphous silicon solar cell low temperature open-circuit voltage

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低叶绿素b水稻突变体类囊体膜的比较蛋白质组学

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生物化学与生物物理进展 2006年第7期33卷 653-659页

作者：陈熙崔香菊 ying-xin zhao 张炜南京农业大学生命科学学院生物化学与分子生物学系南京农业大学．GEHealthcareBiosciences蛋白质组学合作示范实验室南京210095 Department of Chemistry University of Tennessee Knoxville TN37996 USA

采用蓝绿温和胶凝胶电泳(blue-nativepolyacrylamidegel-electrophoresis,BN-PAGE),以及改进的第二向SDS-PAGE分离了水稻低叶绿素b突变体ZH249-Y和野生型ZH249-W类囊体膜蛋白复合物,系统比较了突变体和野生型各复合物亚基的表达差异.结... 详细信息

采用蓝绿温和胶凝胶电泳(blue-nativepolyacrylamidegel-electrophoresis,BN-PAGE),以及改进的第二向SDS-PAGE分离了水稻低叶绿素b突变体ZH249-Y和野生型ZH249-W类囊体膜蛋白复合物,系统比较了突变体和野生型各复合物亚基的表达差异.结果显示,第一向BN-PAGE分离了PSⅠ-LHCⅠ、LHCⅠ缺失的PSⅠ、ATP合成酶、细胞色素b6f、CP43缺失的PSⅡ及LHCⅡ六种复合物.上述各复合物经第二相SDS-Urea-PAGE分离后,利用胶内酶解,高效液相层析分离肽段,电喷雾串联质谱鉴定了复合物的亚基.结合免疫印迹研究,证明和野生型相比,突变体光系统Ⅱ捕光天线复合体的表达量适度下降,但光系统Ⅰ捕光天线破坏严重,同时光系统Ⅱ核心蛋白和ATP合成酶的表达量上升.研究结果对揭示低叶绿素b水稻突变体较高光化学效率和光稳定性的分子基础提供了线索,同时也表明,改进的BN/SDS-PAGE双向电泳不仅可以有效地分离膜蛋白复合物及亚基,也可以进行不同生理条件下,或野生型和突变体之间膜蛋白质组的比较研究.

关键词：蓝绿温和胶凝胶电泳低叶绿素b突变体水稻(Oryza sativa L.) 类囊体膜比较蛋白质组学

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4-Hydroxy phenyl Retinamide Preferentially Targets FLT3 Mutated Acute Myeloid Leukemia via ROS Induction and NF-κB Inhibition

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Current Medical Science 2020年第5期40卷 810-816页

作者： xin-ying zhao Ran-ran ZHANG Qian YE Fei QIU Hao-yu XU Feng-gui WEI Hui ZHANG Department of Hematology/Oncology Guangzhou Women and Children's Medical CenterGuangzhou 510623China Institute of Pediatrics Guangzhou Women and Children’s Medical CenterGuangzhou 510623China Department of Pediatrics The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510120China Bioinspired Engineering and Biomechanics Center Xi'an Jiaotong UniversityXi'an 710049China

FMS-like tyrosine kinase 3(FLT3)mutation is strongly associated with poor prognosis in acute myeloid leukemia(AML).Though many FLT3 inhibitors have been developed for clinical application with 34%-56%complete remission rate,patients would develop resistance sooner or later after initial response to tyrosine kinase inhibitors(TKIs),such as *** increasing studies have shown that several resistance related mutations of FLT3 emerged during the AML ***,further investigation is warranted for these FLT3mu,AML patients to achieve a better treatment outcome.4-Hydroxyphenyl retinamide(4-HPR)has been investigated extensively in animal models and clinical trials as an anticancer/chemopreventive agent and is currently used for protection against cancer development/recurrence,with minimal side *** this study,we performed gene-set enrichment analysis and found that down-regulated genes induced by 4-HPR were associated with FLT3-ITD gene ***34+ AML stem/progenitor cells separated from 32 AML samples were treated with *** analysis showed that AML cells with FLT3-ITD genetic alteration were more sensitive to 4-HPR treatment than those without ***,we treated 22 primary AML cells with 4-HPR and found that 4-HPR was more toxic to AML cells with *** results indicated that 4-HPR was preferentially cytotoxic to all FLT3-ITD AML cells irrespective of stem/progenitor cells or blast cells.4-HPR-induced reactive oxygen species(ROS)production and NF-kB inhibition might be the reason of 4-HPR selectivity on FLT3 mutated AML cells.

关键词： 4-Hydroxyphenyl retinamide acute myeloid leukemia FLT3 mutations ROS induction NF-κB inhibition

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Associations of soybean products intake with blood pressure changes and hypertension incidence: the China-PAR project

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Journal of Geriatric Cardiology 2020年第7期17卷 384-392页

作者： Jia-Liu WEI xin-Yan WANG Fang-Chao LIU Ji-Chun CHEN Jie CAO Jian-xin LI Dong-Sheng HU Chong SHEN Fang-Hong LU ying-xin zhao Jian-Feng HUANG Xiang-Feng LU Key Laboratory of Cardiovascular Epidemiology Chinese Academy of Medical SciencesBeijingChina Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Prevention Medicine Shenzhen University School of MedicineShenzhenChina Department of Epidemiology and Health Statistics College of Public HealthZhengzhou UniversityZhengzhouChina Department of Epidemiology and Biostatistics School of Public HealthNanjing Medical UniversityNanjingChina Cardio-Cerebrovascular Control and Research Center Institute of Basic MedicineShandong First Medical UniversityJinanShandongChina

Background The relationships between dietary intake of soybean products and incident hypertension were still *** study aimed to illustrate the associations between intake of soybean products with risks of incident hypertension and longitudinal changes of blood pressure in a prospective cohort *** We included 67,499 general Chinese adults from the Project of Prediction for Atherosclerosis Cardiovascular Disease Risk in China(China-PAR).Information about soybean products consumption was collected by standardized questionnaires,and study participants were categorized into the ideal(≥125 g/day)or non-ideal(<125 g/day)*** ratios(HRs)and corresponding 95%confidence intervals(95%CIs)for incident hypertension were calculated using Cox proportional hazard *** participants with repeated measures of blood pressure,generalized linear models were used to examine the relationships between soybean products consumption and blood pressure *** During a median follow-up of 7.4 years,compared with participants who consumed<125 g of soybean products per day,multivariable adjusted HR for those in the ideal group was 0.73(0.67-0.80).This inverse association remained robust across most subgroups while significant interactions were tested between soybean products intake and age,sex,urbanization and geographic region(P values for interaction<0.05).The mean systolic and diastolic blood pressure levels were 1.05(0.71-1.39)mmHg and 0.44(0.22-0.66)mmHg lower among participants in the ideal group than those in the non-ideal *** Our study showed that intake of soybean products might reduce the long-term blood pressure levels and hypertension incidence among Chinese population,which has important public health implications for primary prevention of hypertension.

关键词： Blood pressure changes Chinese population Cohort study Hypertension Soybean products

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