检索结果-南通市图书馆

Carbon isotopic compositions of mono-, di-, tri-aromatics provide insights into the source of sulfur-rich crude oils in the Huanghekou Depression, Bohai Bay Basin

引用

Petroleum Science 2023年第2期20卷 753-768页

作者： Cong-Kai Niu Du-jie Hou xiong Cheng Xu Han School of Energy Resources China University of GeosciencesBeijing100083China Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism Ministry of EducationChina University of GeosciencesBeijing100083China

The stable carbon isotope compositions (δ13C) of individual aromatic hydrocarbons have been analyzed in sulfur-rich and sulfur-lean crude oils from the Huanghekou Depression, Bohai Bay Basin. The δ13C values of individual aromatic hydrocarbons, including alkylbenzenes, alkylnaphthalenes, alkylphenanthrenes, alkylfluorenes and alkyldibenzothiophenes, are reported. The main aims are to find out the origin of these oils and their relationship to paleoclimate. The distribution of aromatic hydrocarbons and maturity parameters show the oils all stay in the low-mature to mature stage. Meanwhile, aromatic hydrocarbons are mainly derived from the diagenetic/catagenetic origin. The δ13C values for 1,2,4-trimethylbenzene (−30.7‰ to −28.8‰) and 1,2,3,4-tetramethylbenzene (−32.4‰ to −26.3‰) indicate the algae-derived organic matter for alkylbenzenes. Some isomers, such as 1,7-+1,3-+1,6-dimethylnaphthalene, 1,2,5-trimethylnaphthalene, 1,2,5,6-+1,2,3,5-tetramethylnaphthalene, 1,10-+1,3-+3,10-+3,9-dimethylphenanthrenes, 1,6-+2,9-+2,5-dimethylphenanthrenes and 4,9-+4,10-+1,9- dimethylphenanthrenes show isotopic depletion (−34.9‰ to −25.2‰), indicating the major contribution of algae for these compounds. Meanwhile, isotopically depleted (−33.6‰ to −26.7‰) alkyldibenzothiophenes represent the algae input. δ13C values for mainly algae-derived naphthalene to trimethylnaphthalenes of sulfur-rich oils are more enriched than those of sulfur-lean oil, with the most significant difference of 4.4‰, indicating that the aridity of the environment and stratified water column result in the enrichment in 13C.

关键词： Carbon isotopes Aromatic hydrocarbons Sulfur-rich oils Huanghekou depression Bohai bay basin

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

Dimpling Suppression by Chamfered Rotatable Cubic Punch in Reconfigurable Die Forming

引用

Journal of Wuhan University of Technology(Materials Science) 2020年第2期35卷 407-410页

作者： CAI Yijie HU Yong xiong jie WANG Chengfang Key Laboratory of High Performance Ship Technology(Wuhan University of Technology) Ministry of EducationWuhan University of TechnologyWuhan 430063China School of Transportation Wuhan University of TechnologyWuhan 430063China

The dimpling defects caused by conventional hemispherical punch in doubly curved sheet metal reconfigurable die forming process were *** rotatable cubic punch (RCP) was developed to suppress the dimpling defects more effectively and *** former punch contacts with the work-piece through a point-surface contact and the latter punch contacts with the work-piece through a surface-surface contact.A series of stamping experiments were carried out using three different punches (hemispherical punch,RCP,chamfered-RCP) with three different *** finite element simulations about the stamping experiments were carried *** dimple scales were evaluated through the dimple *** corresponding data were obtained by 3-D scanning and FE result analysis respectively.A 3-D plate forming machine was developed,in which chamfered-RCP was *** forming experiments were carried out on this *** stamped samples show a clear basis for the performance of *** study provided a means to guide the design of punches for dimpling suppression used in reconfigurable die.

关键词： dimpling suppression rotatable cubic punch reconfigurable die forming sheet metal forming

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

Assessment of Building External Wall Thermal Performance Based on Temperature Deviation Impact Factor under Discontinuous Radiant Heating

引用

Journal of Thermal Science 2019年第6期28卷 1129-1140页

作者： YANG jie WANG Jun xiong Feng LIANG Hao LI Yunzhang College of Architecture and Environment Sichuan UniversityChengdu 610065China Center of Science and Technology Industrial Development Ministry of Housing and Urban-Rural DevelopmentBeijing 100835China

As the variation and timely meeting thermal environment requirement of indoor air temperature has a close relationship with the thermal performance of building external wall under discontinuous radiant heating condition, one appropriate assessment method or index for assessing the building external wall thermal performance is very necessary. In order to reasonably evaluate the thermal performance of external wall under discontinuous radiant heating condition and build the direct connections and interactions among the indoor air temperature, external wall inner surface temperature and outdoor air temperature, the first and second impact factors of temperature deviation were established, based on one mathematical model of room heat transfer. For one experimental room and four types of external walls under discontinuous radiant heating condition, both the influence of the external wall inner surface temperature deviation on the indoor air temperature and that of the outdoor air temperature deviation on the external wall inner surface temperature were determined effectively with the first and second impact factors of temperature deviation. In addition, favourable performance for the self-insulation and inner insulation walls were found, due to their superiority in effectively and timely improving the indoor thermal environment under discontinuous radiant heating condition.

关键词： temperature deviation impact factor building external wall thermal performance discontinuous radiant heating

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

Development of a radical polymerization algorithm for molecular dynamics simulations of antifreezing hydrogels with double-network structures

引用

npj Computational Materials 2023年第1期9卷 204-213页

作者： Yonglan Liu Dong Zhang Yijing Tang xiong Gong jie Zheng Department of Chemical Biomolecularand Corrosion EngineeringThe University of AkronAkronOHUSA School of Polymer Science and Polymer Engineering The University of AkronAkronOHUSA

The development and understanding of antifreezing hydrogels are crucial both in principle and practice for the design and delivery of new *** current antifreezing mechanisms in hydrogels are almost exclusively derived from their incorporation of antifreezing additives,rather than from the inherent properties of the polymers ***,developing a computational model for the independent yet interconnected double-network(DN)structures in hydrogels has proven to be an exceptionally difficult ***,we develop a multiscale simulation platform,integrating‘random walk reactive polymerization’(RWRP)with molecular dynamics(MD)simulations,to computationally construct a physically-chemically linked PVA/PHEAA DN hydrogels from monomers that mimic a radical polymerization and to investigate water structures,dynamics,and interactions confined in PVA/PHEAA hydrogels with various water contents and temperatures,aiming to uncover antifreezing mechanism at atomic *** simulation results indicate that the antifreezing property of PVA/PHEAA hydrogels arises from a combination of intrinsic,strong water-binding networks and crosslinkers and tightly crosslinked and interpenetrating double-network structures,both of which enhance polymer-water interactions for competitively inhibiting ice nucleation and *** computational findings provide atomic-level insights into the interplay between polymers and water molecules in hydrogels,which may determine their resistance to freezing.

关键词： freezing polymerization hydrogel

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

Solution‑Processed Thin Film Transparent Photovoltaics:Present Challenges and Future Development

引用

Nano-Micro Letters 2025年第2期17卷 566-600页

作者： Tianle Liu Munerah M.S.Almutairi jie Ma Aisling Stewart Zhaohui Xing Mengxia Liu Bo Hou Yuljae Cho UM-SJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Physics and Astronomy Cardiff UniversityCardiff CF243AAWalesUK Department of Electrical and Computer Engineering Yale UniversityNew HavenCT 06511USA Energy Sciences Institute Yale UniversityWest HavenCT 06516USA Future Photovoltaics Research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Electrical energy is essential for modern society to sustain economic *** soaring demand for the electrical energy,together with an awareness of the environmental impact of fossil fuels,has been driving a shift towards the utilization of solar ***,traditional solar energy solutions often require extensive spaces for a panel installation,limiting their practicality in a dense urban *** overcome the spatial constraint,researchers have developed transparent photovoltaics(TPV),enabling windows and facades in vehicles and buildings to generate electric *** TPV advancements are focused on improving both transparency and power output to rival commercially available silicon solar *** this review,we first briefly introduce wavelength-and non-wavelengthselective strategies to achieve *** of merit and theoretical limits of TPVs are discussed to comprehensively understand the status of current TPV *** we highlight recent progress in different types of TPVs,with a particular focus on solution-processed thin-film photovoltaics(PVs),including colloidal quantum dot PVs,metal halide perovskite PVs and organic *** applications of TPVs are also reviewed,with emphasis on agrivoltaics,smart windows and ***,current challenges and future opportunities in TPV research are pointed out.

关键词： Transparent semiconductors Solution-processable transparent solar cell Emerging solar cell materials Buildingintegrated photovoltaics

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

Removal of Sulfamethazine by Corn Biochars from Aqueous Solution:Sorption Mechanisms and Efficiency

引用

Journal of Ocean University of China 2021年第3期20卷 590-598页

作者： ZHANG mo ZHAO Yangguo WANG Jinpeng BAI jie Li Kuiran College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Marine Environment and Ecology(Ocean University of China) Ministry of EducationQingdao 266100China College of Marine Life Sciences Ocean University of ChinaQingdao 266003China The People’s Government of Laiwu District Jinan 271100China

Sorption mechanisms of sulfamethazine(SMT)in different pH solutions are *** has not been sufficiently investigated to enhance removal of SMT from alkalescent aqueous *** this study,sorption isotherms and kinetics of SMT by corn biochars pyrolyzed at 300℃ and 600℃(300C,600C)under diverse pH conditions were *** order to improve the sorption efficiency of SMT from alkalescent aqueous solution,the biochar 300C was modified by acid or *** mathematic models were used to describe sorption driving force and sorption *** showed that the biochar 300C possessed more amorphous organic carbon and polar functional groups,which led to a higher sorption capacity than biochar *** sorption rate of biochar 300C was greater than 600C under diverse pH as the physisorption of 300C outweighed *** SMT presented stronger hydrophobicity at pH 5 and higher electrostatic repulsion at pH 1 or 8,which resulted in a higher combining capacity of SMT with both biochars at pH 5 than other pH *** addition,the acid modified biochar had better removal effect on SMT than alkali at pH solution around *** research provides a theoretical basis for the removal of SMT from alkalescent aqueous solution.

关键词： sulfamethazine sorption mechanisms process modification

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

DNA Nanotechnology-Enabled Fabrication of Metal Nanomorphology

引用

Research 2022年第4期2022卷 189-204页

作者： mo Xie Yang Hu Jue Yin Ziwei Zhao Jing Chen jie Chao State Key Laboratory of Organic Electronics and Information Displays e Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and Telecommunications9 Wenyuan RoadNanjing 210023China The Interdisciplinary Research Center Shanghai Synchrotron Radiation FacilityZhangjiang LaboratoryShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China

In recent decades,DNA nanotechnology has grown into a highly innovative and widely established *** nanostructures have extraordinary structural programmability and can accurately organize nanoscale materials,especially in guiding the synthesis of metal nanomaterials,which have unique advantages in controlling the growth morphology of metal *** review started with the evolution in DNA nanotechnology and the types of DNA ***,a DNA-based nanofabrication technology,DNA metallization,was *** this section,we systematically summarized the DNA-oriented synthesis of metal nanostructures with different morphologies and ***,the applications of metal nanostructures constructed from DNA templates in various fields including electronics,catalysis,sensing,and bioimaging were figured ***,the development prospects and challenges of metal nanostructures formed under the morphology control by DNA nanotechnology were discussed.

关键词： materials template synthesis

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

Determinants of saturation magnetic flux density in Fe-based metallic glasses:insights from machine-learning models

引用

Rare Metals 2024年第10期43卷 5256-5267页

作者： jie xiong Bo-Wen Bai Hao-Ran Jiang Angeles Faus-Golfe Materials Genome Institute Shanghai UniversityShanghai 200444China Institute of Special Environments Physical Sciences Harbin Institute of TechnologyShenzhen 518055China Laboratoire de Physique des 2 Infinis Irene Joliot-Curie(IJCLab) CNRS-IN2P3Universite Paris-Saclay91405 OrsayFrance

Fe-based metallic glasses have garnered significant attention due to their low coercivity force and core *** the saturation magnetic flux density(Bs)of Fe-based metallic glasses is crucial for their industry *** work constructed a dataset comprising330 training data and 157 test *** support vector regression model surpassed the tree-based ensemble models in the test set and demonstrated comparable accuracy to the tree-based ensemble models in the training ***,we proposed an indicator for Bsbased on symbolic *** newly proposed indicator exhibits a Pearson correlation coefficient exceeding 0.92 with *** present work provides a simple and accurate formula for predicting the Bsof Fe-based amorphous alloys,demonstrating the effectiveness of machine learning approaches in discovering novel soft magnetic materials.

关键词： Saturation magnetic flux density Fe-based metallic glasses Machine learning Symbolic regression

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

Gaussian process regressions on hot deformation behaviors of FGH98 nickel-based powder superalloy

引用

Journal of Materials Science & Technology 2023年第15期146卷 177-185页

作者： jie xiong Jian-Chao He Xue-Song Leng Tong-Yi Zhang School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518055China Institute of Special Environment Physical Sciences Harbin Institute of TechnologyShenzhen 518055China Hong Kong University of Science and Technology(Guangzhou) Guangzhou 511400China

The hot deformation behaviors of FGH98 nickel-based powder superalloy were experimentally investigated and theoretically analyzed by Arrhenius models and machine learning(ML).Hot compression tests were conducted with a Gleeble-3800 thermo-mechanical simulation machine on the FGH98 superalloy at strain rates of 0.001–1 s–1 and temperatures of 1025–1175℃.The peak stresses under different deformation conditions were analyzed via the Sellars model and an ML-inspired Gaussian process regression(GPR)*** prediction of the GPR model outperformed that from the Sellars *** addition,the stress-strain responses were predicted by the GPR model and tested by experimentally measured stress-strain *** results indicate that the developed GPR model has great power with wide generalization capability in the prediction of hot deformation behaviors of FGH98 superalloy,as evidenced by the R2 value higher than 0.99 on the test dataset.

关键词： Hot compressive deformation Nickel-based powder superalloy Activation energy Gaussian process regression

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

Global trend of review articles focused on cardiopulmonary bypass:Perspectives from bibliometrics

引用

World Journal of Methodology 2025年第2期15卷 166-173页

作者： Lei Deng Rui Zhou Xian-jie Zhang Yan-Hua Peng Department of Gastroenterology Deyang People’s HospitalDeyang 618000Sichuan ProvinceChina Department of Anesthesiology and Perioperative Medicine Shanghai Fourth People's HospitalSchool of MedicineTongji UniversityShanghai 200434China Department of Anesthesiology Deyang People’s HospitalDeyang 618000Sichuan ProvinceChina

BACKGROUND Cardiopulmonary bypass(CPB)is a life-support technology widely used in *** articles reflect research advances in a certain topic or field within a certain period of *** To perform a bibliometric analysis of the review articles that focused on CPB for cardiovascular *** This study was based on a bibliometric *** were acquired from the Web of Science and basic bibliometric parameters were analyzed and visualized using VOSviewer and *** We identified 141 review articles on ***,the number of publications increased,and most of them were published in the 2010s(n=57,40.4%)and the 2020s(n=45,31.9%).There were 113(80.1%)narrative review articles,21(14.9%)meta-analysis studies and 7(5.0%)systematic review *** United States(n=25,17.7%)and China(n=21,14.9%)were the leading countries in terms of publication *** articles were published in 98 different *** Journal of Cardiothoracic and Vascular Anesthesia(n=14,10.0%)and Perfusion-United Kingdom(n=11,7.8%)were preferred by the *** high-frequency keywords included inflammatory response,children,acute kidney injury,meta-analysis and off-pump,except for CPB and cardiac *** response had the closest relationship with CPB during cardiac *** complications of CPB,including inflammatory response,kidney injury and ischemia,caught lots of *** The rapid increase of review papers shows that the research on CPB in cardiac surgery is increasingly being emphasized by scholars and clinical staff ***-analysis has been widely conducted to analyze clinical controversies and further guide clinical *** to improving the outcomes of patients undergoing cardiac surgery with CPB are the hot spots in this field.

关键词： Cardiopulmonary bypass Review article Bibliometric analysis Cardiac surgery Hot spots

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：