检索结果-南通市图书馆

Prediction and quantification of effective gas source rocks in a lacustrine basin: Western Depression in the Liaohe Subbasin, China

引用

Petroleum Science 2024年第4期21卷 2218-2239页

作者： Si-Bo Yang Mei-Jun Li Hong Xiao fang-zheng Wang Guo-Gang Cai Shuang-Quan Huang State Key Laboratory of Petroleum Resources and Prospecting College of Geosciences China University of Petroleum China University of Petroleum-Beijing at Karamay College of Petroleum Research Institute of Petroleum Exploration and Development Liaohe Oilfield Company PetroChina

Due to limited data on the geochemical properties of natural gas, estimations are needed for the effective gas source rock in evaluating gas potential. However, the pronounced heterogeneity of mudstones in lacustrine successions complicates the prediction of the presence and geochemical characteristics of gas source rocks. In this paper, the Liaohe Subbasin of Northeast China is used as an example to construct a practical methodology for locating effective gas source rocks in typical lacustrine basins. Three types of gas source rocks, microbial, oil-type, and coal-type, were distinguished according to the different genetic types of their natural gas. A practical three-dimensional geological model was developed, refined, and applied to determine the spatial distribution of the mudstones in the Western Depression of the Liaohe Subbasin and to describe the geochemical characteristics(the abundance, type, and maturation levels of the organic matter). Application of the model in the subbasin indicates that the sedimentary facies have led to heterogeneity in the mudstones, particularly with respect to organic matter types. The effective gas source rock model constructed for the Western Depression shows that the upper sequence(SQ2) of the Fourth member(Mbr 4) of the Eocene Shahejie Formation(Fm) and the lower and middle sequences(SQ3 and SQ4) of the Third member(Mbr 3) form the principal gas-generating interval. The total volume of effective gas source rocks is estimated to be 586 km3. The effective microbial, oil-type, and coal-type gas source rocks are primarily found in the shallow western slope, the central sags, and the eastern slope of the Western Depression, respectively. This study provides a practical approach for more accurately identifying the occurrence and geochemical characteristics of effective natural gas source rocks, enabling a precise quantitative estimation of natural gas reserves.

关键词： Effective gas source rock 3D geological modeling Spatial distribution Geochemical characteristics Lacustrine rift basin

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Factors affecting meibomian gland area loss in symptomatic adults

引用

International Journal of Ophthalmology(English edition) 2024年第6期17卷 1036-1041页

作者： Si-Cheng Ding Jing-Jing Su Qing Zhan Jiao-Man Wang fang zheng Xu-Xuan fang Dan Cheng Ping Guo The Second Clinical Medical College Jinan UniversityShenzhen 518000Guangdong ProvinceChina Shenzhen Eye Hospital Jinan UniversityShenzhen Eye InstituteShenzhen 518040Guangdong ProvinceChina Department of Ophthalmology Jinzhou Medical UniversityJinzhou 121000Liaoning ProvinceChina

AIM:To characterize the distribution of meibomian gland(MG)area loss(MGL)and its relationship with demographic characteristics,mites,and ***:This retrospective observational study included patients who visited the Dry Eye Clinic of Shenzhen Eye Hospital between June 2020 and August *** patient characteristics,ocular symptoms,Demodex test results of the eyelid edges,and the results of a comprehensive ocular surface analysis were *** was analyzed using Image J ***:This study enrolled 1204 outpatients aged 20-80(40.70±13.44)y,including 357 males(29.65%)and 847 females(70.35%).The patients were classified into mild(n=155;12.87%),moderate(n=795;66.03%),severe(n=206;17.11%),and extremely severe(n=48;3.99%)MGL *** was significantly larger in female than in male(P=0.006).The degree of MGL also significantly differed in age(P<0.001)and the more numbers of mites with severity(P<0.001).Multivariate disordered multinomial logistic regression analysis identified that female sex,older age,secretory symptoms,and a large number of mites were risk factors for MGL(P<0.05).CONCLUSION:Patients with MGL are more likely to be older,female,more numbers of mites,and increased secretion.

关键词： meibomianglands aging sex symptomatology Demodex

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Immobilizing Triphenylamine with Photoredox Inert Sr^(2+)Forming Sr-MOF with Controlled Electron Migration for Photocatalytic Oxidation of Thiols to Disulfides

引用

Chinese Journal of Chemistry 2024年第10期42卷 1093-1099页

作者： Ying-Xia Wang fang zheng Dong-Xia Song Bao-Yue Niu Lu-Qian Deng Xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education) Schoolof Chemistry and Materials ScienceShanxi Normal UniversityTaiyuanShanxi 030006China Key Laboratory of Interface Science and Engineering in Advanced Material(Ministry of Education) College of ChemistryTaiyuan University of TechnologyTaiyuanShanxi 030024China

The photocatalytic oxidative coupling of thiols is one of the most popular methods to synthesize the *** and its derivatives(TPAs)are promising for the above reaction,but suffer from the easy polymerization and difficult *** overcome these obstacles while controlling the photogenerated electrons transfer directly to target substrates,herein,we constructed one TPA-based metal-organic framework(MOF),(Me_(2)NH_(2))[Sr(TCBPA)]·DMA·3H_(2)O(1),by direct self-assembly of tris(4′-carboxybiphenyl)amine(H_(3)TCBPA)and photoredox inert strontium ion(Sr^(2+)).DFT calculations revealed that the valence band maximum(VBM)and the conduction band minimum(CBM)are mainly located on TCBPA^(3-),successfully inhibiting the undesirable electron migration to metal *** results indicated that 1 displays superior performance than homogeneous H_(3)TCBPA,which may result from the abundant π…π and C—H…π interactions between the well-arranged TCBPA^(3-)and the build-in electric field between the anionic framework and the Me_(2)NH^(2+).This work highlights that immobilizing TPAs into MOFs is one promising approach to designing heterogeneous photocatalysts for the synthesis of disulfides by oxidative coupling of thiols.

关键词： Triphenylamine Metal-organic frameworks Strontium Photooxidation Thiols Disulfides

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Deciphering dynamic surface of PtRu alloy nanocatalysts to revisit their synergistic effects during the electrooxidation

引用

Science China Chemistry 2024年第7期67卷 2224-2233页

作者： Xiao-Chong Li Bo Wang Zhou Yu Qiang Wan Ju-fang zheng Emmanuel Maisonhaute Xiao-Shun Zhou Ya-Hao Wang Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Institute of Physical ChemistryZhejiang Normal UniversityJinhua 321004China Laboratoire Interface et Systèmes Electrochimiques CNRS UMR 8235Sorbonne UniversitéF-75252 Paris cedex 5France

Correlating dynamic structural transformation of catalysts with the surface intermediate species under operating conditions is critical for updating the understanding of structure–performance ***,we probe the electrochemical potentialdependent surface structures and adsorbed intermediates on PtRu binary alloy nanocatalysts to revisit its synergistic mechanisms for CO electrooxidation enhanced ***-situ spectral characteristics by using modified shell-isolated nanoparticle-enhanced Raman spectroscopy,show that in acidic solution,when the potential is positively scanned from 0.1 V to 1.5 V relative to reversible hydrogen electrode(RHE),the surface of the alloy catalyst evolves from metallic PtRu to adsorbed oxygen gradually covering and accumulating on Ru sites(denoted as PtRuO_(x),x≤2),forming segregated RuO_(2),and finally forming a threedimensional oxide layer(denoted as 3D PtRuO_(4)).Moreover,molecular evidence associated with periodic density functional theory calculations reveals that electronic effects promote ruthenium to become more oxidizable and *** particular,we found here that ^(*)O and ^(*)OH at surface RuO_(x) sites are highly efficient CO oxidation active species in comparison to the same entities adsorbed on metallic Ru *** work sheds light on the complex surface dynamic process of practical Pt-based binary nanocatalysts and improves the understanding of synergistic mechanism for the development of fuel cell devices.

关键词： in-situ Raman spectroscopy surface evolution bifunctional mechanism PtRu electrooxidation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of an Airbag-selective Portal Vein Blood Arrester on the Liver after Hepatectomy:A New Technique for Selective Clamping of the Portal Vein

引用

Current Medical Science 2024年第2期44卷 380-390页

作者： Ce-xiong FU Xiao-ri QIN Jin-song CHEN Jie ZHONG Yu-xu XIE Bi-dan LI Qing-qing FU fang LI Jin-fang zheng Department of Hepatobiliary and Pancreatic Surgery Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China University of South China Hengyang 421001China Department of Gastroenterology Gastroenterology Endoscopy CenterHainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 57031lChina Center of Clinical Laboratory Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China Department of Radiology Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikou 570311China

Objective:A novel technique was explored using an airbag-selective portal vein blood arrester that circumvents the need for an intraoperative assessment of anatomical variations in patients with complex intrahepatic space-occupying ***:Rabbits undergoing hepatectomy were randomly assigned to 4 groups:intermittent portal triad clamping(PTC),intermittent portal vein clamping(PVC),intermittent portal vein blocker with an airbag-selective portal vein blood arrester(APC),and without portal blood occlusion(control).Hepatic ischemia and reperfusion injury were assessed by measuring the 7-day survival rate,blood loss,liver function,hepatic pathology,hepatic inflammatory cytokine infiltration,hepatic malondialdehyde levels,and proliferating cell nuclear antigen ***:Liver damage was substantially reduced in the APC and PVC *** APC animals exhibited transaminase levels similar to or less oxidative stress damage and inflammatory hepatocellular injury compared to those exhibited by the PVC *** was significantly higher in the control group than in the other *** APC group had less bleeding than the PVC group because of the avoidance of portal vein skeletonization during ***,more operative time was saved in the APC group than in the PVC ***,the total 7-day survival rate in the APC group was higher than that in the PTC ***:Airbag-selective portal vein blood arresters may help protect against hepatic ischemia and reperfusion injury in rabbits undergoing partial *** technique may also help prevent liver damage in patients requiring hepatectomy.

关键词： hepatectomy portal vein hepatic damage selective clamping

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oxidative spirolactonisation for modular access of γ-spirolactones via a radical tandem annulation pathway

引用

Chinese Chemical Letters 2024年第10期35卷 249-252页

作者： Jindian Duan Xiaojuan Ding Pui Ying Choy Binyan Xu Luchao Li Hong Qin zheng fang Fuk Yee Kwong Kai Guo College of Biotechnology and Pharmaceutical Engineering State Key Laboratory of Materials-Oriented Chemical EngineeringNanjing Tech UniversityNanjing 211816China Department of Chemistry and State Key Laboratory of Synthetic Chemistry The Chinese University of Hong KongHong KongChina

An oxidative annulation of 2-arylidene-1,3-indanediones with Meldrum's acid has been developed for the divergent syntheses of spirolactones with a spirocenter located at theγ-position with respect to the carbonyl *** heteroannulation protocol tolerates various functional groups and delivers moderate-to-good product ***,the reaction outcomes are exclusively controlled by the reaction oxidant/*** annulation strategy can also be executed in the flow system with decent product *** experiments revealed that the reaction proceeds via a radical tandem annulation pathway.

关键词： Spirolactonisation y-Spirolactones 2-Arylidene-1,3-indanediones Meldrum's acid Divergentsynthesis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Stabilizing semi-transparent perovskite solar cells with a polymer composite hole transport layer

引用

Nano Research 2024年第3期17卷 1500-1507页

作者： Yongbin Jin Huiping Feng zheng fang Liu Yang Kaikai Liu Bingru Deng Jingfu Chen Xueling Chen Yawen Zhong Jinxin Yang Chengbo Tian Liqiang Xie Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

Semi-transparent perovskite solar cells(ST-PSCs)have broad applications in building integrated ***,the stability of ST-PSCs needs to be improved,especially in n-i-p ST-PSCs since the doped 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9'-spirobifluorene(Spiro-OMeTAD)is unstable at elevated temperatures and high *** this work,aπ-conjugated polymer poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophene-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c']dithiophene-4,8-dione)](PBDB-T)is selected to form a polymer composite hole transport layer(HTL)with *** sulfur atom of the thiophene unit and the carbonyl group of the polymer interact with the undercoordinated Pb2+at the perovskite surface,which stabilizes the perovskite/HTL interface and passivates the interfacial *** incorporation of the polymer also increases the glass transition temperature and the moisture resistance of *** a result,we obtain ST-PSCs with a champion efficiency of 13.71%and an average visible light transmittance of 36.04%.Therefore,a high light utilization efficiency of 4.94%can be ***,the encapsulated device can maintain 84%of the initial efficiency after 751 h under continuous one-sun illumination(at 30%relative humidity)at the open circuit and the unencapsulated device can maintain 80%of the initial efficiency after maximum power tracking for more than 1250 h under continuous one-sun illumination.

关键词： semi-transparent solar cells π-conjugated polymer composite hole transport layer building integrated photovoltaics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

数智化场域主流意识形态的空间建构逻辑

引用

深圳大学学报（人文社会科学版） 2024年第3期41卷 132-141页

作者：方正浙江大学马克思主义学院浙江杭州310012

马克思意识形态批判的哲学叙事中蕴含着鲜明的空间意识。意识形态的空间属性表现为其存在本质具有的空间在场性、教化功能隐含的空间扩散性、利益内核昭示的空间斗争性。随着人类生存空间的虚拟迁移与深度拓展,意识形态转而以数据化的... 详细信息

马克思意识形态批判的哲学叙事中蕴含着鲜明的空间意识。意识形态的空间属性表现为其存在本质具有的空间在场性、教化功能隐含的空间扩散性、利益内核昭示的空间斗争性。随着人类生存空间的虚拟迁移与深度拓展,意识形态转而以数据化的形式表征其空间在场,以数智技术为中介实现其空间扩散,并产生了以竞夺数字生命时间为核心逻辑的空间斗争。意识形态空间转向呈现出的崭新样貌与运演规则,意味着主流意识形态的数智化延伸面临着全新的空间境遇。平权化传播结构下的数据主义导向使主流信息空间可见性为流量冗余遮蔽,数字符号消费的快感化逻辑使主流话语空间流动性为感官幻象禁锢,数字交往范式的部落化趋向使主流价值空间整合性为数字圈群瓦解。巩固主流意识形态的空间主导权,应以数字法规廓清空间迷障,引导技术向善以重塑良性信息生态;以圈群交融弥合空间裂隙,聚合群体智慧以赋能数字文本生产;以话语创新穿透空间壁垒,创构虚拟叙事场景以激活受众情感体认。

关键词：数智化意识形态空间属性主导权数据主义

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

数智时代思想政治教育场景化的应用图景、问题透视与行动路径

引用

西南民族大学学报（人文社会科学版） 2024年第6期45卷 209-217页

作者：方正浙江大学马克思主义理论创新与传播研究中心浙江杭州310030

作为承载社会关系情境的空间介质,场景具有特定的意识形态形塑功能,与思想政治教育聚焦价值塑造的育人逻辑高度契合。随着数智技术的蓬勃发展,思想政治教育场景化在虚拟迁移与智能升维中,成为回应数智社会思想政治教育转型期待的重要实... 详细信息

作为承载社会关系情境的空间介质,场景具有特定的意识形态形塑功能,与思想政治教育聚焦价值塑造的育人逻辑高度契合。随着数智技术的蓬勃发展,思想政治教育场景化在虚拟迁移与智能升维中,成为回应数智社会思想政治教育转型期待的重要实践形式。基于多模态信息的全景式育人场景,实现了思想政治教育资源的感性重置;智能算法的个性化推送模式,满足了思想政治教育场景供给的精准性需求;微粒型社会生活场景的复刻,通过链接现实物境建立了日常化的叙事结构。在思想政治教育场景化应用中,隐含着技术固有缺陷生成的潜在意识形态风险:深度沉浸的场景栖居悬置了思想政治教育的实践性;偏好趋附的场景设置消解了思想政治教育的渗透性;泛娱乐化的场景生态弥散了思想政治教育的思想性。规避场景应用中的流量至上与数据主义导向,要在技术范畴纠治场景设置的工具理性偏向,提炼场景元素的主流价值内核;在主体向度培育受教育者的场景学习素养,以双向场景互动激活其情感体认;在叙事维度发掘思想政治教育的数字叙事资源,建立经典与流行相结合的场景叙事形态。

关键词：数智化思想政治教育场景应用技术赋能

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The GmSTF1/2–GmBBX4 negative feedback loop acts downstream of blue-light photoreceptors to regulate isoflavonoid biosynthesis in soybean

引用

Plant Communications 2024年第2期5卷 198-214页

作者： Zhaoqing Song Fengyue Zhao Li Chu Huan Lin Yuntao Xiao zheng fang Xuncheng Wang Jie Dong Xiangguang Lyu Deyue Yu Bin Liu Junyi Gai Dongqing Xu National Center for Soybean Improvement State Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationCollege of AgricultureNanjing Agricultural UniversityNanjing 210095China Beijing Key Laboratory of Environmentally Friendly Management of Fruit Diseases and Pests in North China Institute of Plant and Environment ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China Institute of Crop Science College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop ScienceChinese Academy of Agricultural SciencesBeijing 100081China

Isoflavonoids,secondary metabolites derived from the phenylalanine pathway,are predominantly bio-synthesized in legumes,especially soybean(Glycine max).They are not only essential for plant responses to biotic and abiotic stresses but also beneficial to human *** this study,we report that light signaling controls isoflavonoid biosynthesis in ***-light photoreceptors(GmCRY1s,GmCRY2s,GmPHOT1s,and GmPHOT2s)and the transcription factors GmSTF1 and GmSTF2 promote isoflavonoid accumulation,whereas the E3 ubiquitin ligase GmCOP1b negatively regulates isoflavonoid ***1s and GmPHOT2s stabilize GmSTF1/2,whereas GmCOP1b promotes the degradation of these two proteins in ***1/2 regulate the expression of approximately 27.9%of the genes involved in soybean isoflavonoid biosynthesis,including GmPAL2.1,GmPAL2.3,and *** also repress the expression of GmBBX4,a negative regulator of isoflavonoid biosynthesis in *** addition,GmBBX4 physically interacts with GmSTF1 and GmSTF2 to inhibit their transcriptional activation activity toward target genes related to isoflavonoid ***,GmSTF1/2 and GmBBX4 form a negative feedback loop that acts downstream of photoreceptors in the regulation of isoflavonoid *** study provides novel insights into the control of isoflavonoid biosynthesis by light signaling in soybean and will contribute to the breeding of soybean cultivars with high isoflavonoid content through genetic and metabolic engineering.

关键词： photoreceptor light signaling isoflavonoid GmSTF GmBBX4 soybean

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：