检索结果-南通市图书馆

A review on the mechanisms of low salinity water/surfactant/nanoparticles and the potential synergistic application for c-EOR

引用

Petroleum Research 2023年第3期8卷 324-337页

作者： Stanley Sim Sze Lim Henry Elochukwu Jobrun Nandong Ziad Bennour Mohamed Ali Hamid Chemical and Energy Department Faculty of Engineering and ScienceCurtin University MalaysiaMalaysia School of engineering and physical sciences Heriot Watt UniversityMalaysia

Chemical enhanced oil recovery(c-EOR)is a conventional and promising strategy to recover oil from reservoir techniques such as low salinity water flooding(LSWF),surfactant flooding,alkaline flooding,polymers flooding,and nanofluid flooding.The use of various types of chemical materials for c-EOR method has recently attracted the attention of the oil and gas industry.The primary objective of this review work is to explore the synergy of low salinity water/surfactant/nanoparticle flooding for effective c-EOR method and investigate the mechanism behind these methods.The advantages of combining these chemical materials for c-EOR methods is also reviewed.Challenges and limitations of this synergy and their economic feasibility for additional oil recovery and potential return on investment are reviewed.Nanoparticles have been successfully used in various applications in several industries and have also shown good application for EOR in terms of wettability alteration.LSWF contributes to wettability alteration,while surfactant contributes to wettability alteration and interfacial tension(IFT)reduction.However,fines migration caused by LSWF and nanoparticle agglomeration can cause formation damage,while excessive surfactant adsorption can lead to cost overrun on surfactant use.Understanding the characteristics of reservoir formation mineralogy and appropriate nanoparticle type,size,and concentration can be used to resolve this challenges.The synergy of LSWF and nanoparticles in alkaline medium can serve as sacrificial agent to reduce excessive surfactant loss.Therefore,the appropriate synergistic formulation of LSFW/surfactant/nanoparticle can improve additional oil recovery and support return on investment for c-EOR projects.

关键词： Surfactant Low salinity water Nanoparticles Nanofluid Enhanced oil recovery

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

Thermal neutron flux produced by EAS at various altitudes

引用

Chinese Physics C 2013年第1期37卷 66-69页

作者： Yu. V. Stenkin V. V. Alekseenko D. M. Gromushkin 刘烨马欣华赵静 Institute for nuclear Research of Russian Academy of sciences Moscow physical engineering Institute Hebei Normal University Institute of High Energy Physics of Chinese Academy of sciences

The results of Monte-Carlo simulations of extensive air showers are presented to show the difference of the hadronic component content at various altitudes with the aim to choose an optimal altitude for a PRISMA-like experiment. The CORSIKA program for EAS simulations with QGSJET and GHEISHA models was used to calculate the number of hadrons reaching the observational level inside a circle of 50 m radius around the EAS axis. Then the number of neutrons produced by the hadronic component was calculated using an empirical relationship between the two components. We have tested the results with the ProtoPRISMA array at sea level, and recorded the neutrons which are consistent with the simulation results.

关键词： EAS detector neutrons altitudes

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

A novel multi-shot target platform for laser-driven laboratory astrophysics experiments

引用

High Power Laser Science and engineering 2023年第2期11卷 11-19页

作者： Pablo Perez-Martin Irene Prencipe Manfred Sobiella Fabian Donat Ning Kang Zhiyu He Huiya Liu Lei Ren Zhiyong Xie Jun Xiong Yan Zhang Florian-Emanuel Brack MichalČervenák Pavel Gajdoš Lenka Hronová Kakolee Kaniz Michaela Kozlová Florian Kroll Xiayun Pan Gabriel Schaumann Sushil Singh MichalŠmíd Francisco Suzuki-Vidal Panzheng Zhang Jinren Sun Jianqiang Zhu Miroslav Krůs Katerina Falk Helmholtz-Zentrum Dresden-Rossendorf Institute of Radiation PhysicsDresdenGermany Technische Universität Dresden DresdenGermany Key Laboratory of High Power Laser and Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina Shanghai Institute of Laser Plasma China Academy of Engineering PhysicsShanghaiChina Institute of Plasma Physics Czech Academy of SciencesPragueCzech Republic Czech Technical University Faculty of Nuclear Sciences and Physical EngineeringPragueCzech Republic Department of Physics Jagannath UniversityDhakaBangladesh ELI-Beamlines Institute of PhysicsCzech Academy of SciencesPragueCzech Republic Institute for nuclear Physics Technical University of DarmstadtDarmstadtGermany Institute of Physics Czech Academy of SciencesPragueCzech Republic Blackett Laboratory Imperial CollegeLondonUnited Kingdom First Light Fusion Oxford Industrial ParkYarntonOxfordUnited Kingdom

A new approach to target development for laboratory astrophysics experiments at high-power laser facilities is presented.With the dawn of high-power lasers,laboratory astrophysics has emerged as a field,bringing insight into physical processes in astrophysical objects,such as the formation of stars.An important factor for success in these experiments is targetry.To date,targets have mainly relied on expensive and challenging microfabrication methods.The design presented incorporates replaceable machined parts that assemble into a structure that defines the experimental geometry.This can make targets cheaper and faster to manufacture,while maintaining robustness and reproducibility.The platform is intended for experiments on plasma flows,but it is flexible and may be adapted to the constraints of other experimental setups.Examples of targets used in experimental campaigns are shown,including a design for insertion in a high magnetic field coil.Experimental results are included,demonstrating the performance of the targets.

关键词： high magnetic fields laboratory astrophysics laser-plasma interaction magnetized plasmas target design

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

Sorption and phase distribution of ethanol and butanol blended gasoline vapours in the vadose zone after release

引用

Journal of Environmental sciences 2014年第3期26卷 608-616页

作者： Ejikeme Ugwoha John M. Andresen Chemical and Environmental engineering University of Nottingham School of engineering and physical sciences Heriot-Watt University

The sorption and phase distribution of 20% ethanol and butanol blended gasoline （E20 and B20） vapours have been examined in soils with varying soil organic matter （SOM） and water contents via laboratory microcosm experiments. The presence of 20% alcohol reduced the sorption of gasoline compounds by soil as well as the mass distribution of the compounds to soil solids. This effect was greater for ethanol than butanol. Compared with the sorption coefficient （Kd） of unblended gasoline compounds, the Kd of E20 gasoline compounds decreased by 54% for pentane, 54% for methylcyclopentane （MCP） and 63% for benzene, while the Kd of B20 gasoline compounds decreased by 39% for pentane, 38% for MCP and 49% for benzene, The retardation factor （R） of E20 gasoline compounds decreased by 53% for pentane, 53% for MCP and 48% for benzene, while the R of B20 gasoline compounds decreased by 39% for pentane, 37% for MCP and 38% for benzene. For all SOM and water contents tested, the Kd and R of all gasoline compounds were in the order of unblended gasoline 〉 B20 〉 E20, indicating that the use of high ethanol volume in gasoline to combat climate change could put the groundwater at greater risk of contamination,

关键词： butanol-blended gasoline ethanol-blended gasoline phase distribution soil organic matter soil water content sorption vadose zone

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

Particle-bound organic and elemental carbons for source identification of PM<0.1μm from biomass combustion

引用

Journal of Environmental sciences 2022年第3期34卷 385-393页

作者： Hisam Samae Surajit Tekasakul Perapong Tekasakul Worradorn Phairuang Masami Furuuchi Surapa Hongtieab Department of Chemistry Division of Physical SciencesFaculty of SciencePrince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of Mechanical engineering Faculty of EngineeringPrince of Songkla UniversityHat YdiSongkhla 90112Thailand Air Pollution and Health Effect Research Center Prince of Songkla UniversityHat YaiSongkhla90112Thailand faculty of Environmental Management Prince of Songkla UniversityHat YaiSongkhla90112Thailand faculty of Geoscience and Civil engineering Institute of Science and EngineeringKanazawa UniversityKakuma-machiKanazawaIshikawa920-1192Japan Department of Geography Faculty of Social SciencesChiang Mai UniversityMuangChiang Mai50200Thailand

Atmospheric nanoparticles(PM50%)with minor contribution from EC(3%-12%).The higher fraction of carbonaceous components was found in the particulates with smaller sizes,and lignin content may relate to concentration of pyrolyzed organic carbon(PyOC)resulting in the differences of OC/EC values.PM emit-ted from burning palm fiber and rice stubble showed high values of OC/EC and also high PyOC.Non-carbonaceous components such as Cl^(-),Cr,Ca,Cd,Ni,Na and Mg may be useful as source indicators,but they did not show any correlation with the size of PM.

关键词： PM<0.1 pm Organic carbon Elemental carbon Source identification Emission factors

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

Digital Water Developments and Lessons Learned from Automation in the Car and Aircraft Industries

引用

engineering 2022年第2期8卷 35-41页

作者： Dragan Savic KWR Water Research Institute Nieuwegein 3430 BBNetherlands College of engineering Mathematics and Physical SciencesUniversity of ExeterExeter EX44QFUK faculty of engineering and Build Environment National UniversityBangi 43600Malaysia

The provision of water and sanitation services is a key challenge worldwide.The size,complexity,and critical nature of the water and wastewater infrastructure providing such services make the planning and management of these systems extremely difficult.Following the digital revolution in many areas of our lives,the water sector has begun to benefit from digital transformation.Effective utilization of remotely sensed weather and soil moisture data for more efficient irrigation(i.e.,for food production),better detection of anomalies and faults in pipe networks using artificial intelligence,the use of nature-inspired optimization to improve the management and planning of systems,and greater use of digital twins and robotics all exhibit great potential to change and improve the ways in which complex water systems are managed.However,there are additional risks associated with these developments,including—but not limited to—cybersecurity,incorrect use,and overconfidence in the capability and accuracy of digital solutions and automation.This paper identifies key advances in digital technology that have found application in the water sector,and applies forensic engineering principles to failures that have been experienced in industries further ahead with automation and digital transformation.By iden-tifying what went wrong with new digital technologies that might have contributed to high-profile acci-dents in the car and aircraft industries(e.g.,Tesla self-driving cars and the Boeing 737 MAX),it is possible to identify similar risks in the water sector,learn from them,and prevent future failures.The key findings show that:①Automation will require“humans in the loop”;②human operators must be fully aware of the technology and trained to use it;③fallback manual intervention should be available in case of tech-nology malfunctioning;④while redundant sensors may be costly,they reduce the risks due to erroneous sensor readings;⑤cybersecurity risks must be considered;and⑥ethics issues have to be considered,given the increasing a

关键词： Digitalization Automation Water sector Potential risks Lessons

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

Overburden management in open pits: options and limits in large limestone quarries

引用

International Journal of Mining Science and Technology 2019年第2期29卷 217-228页

作者： Claudio Oggeri Taddeo Maria Fenoglio Alberto Godio Raffaele Vinai Department of Environment Land and Infrastructure Engineering Politecnico di Torino College of engineering Mathematics and Physical Sciences University of Exeter

The management of overburden is an important task in open pit exploitations. Site topography and morphology as well as geological and geotechnical properties of natural and remoulded materials are the most important factors affecting the disposal phase. Economic and environmental requirements must be followed in order to achieve the best reclamation results, keeping into account site constraints such as slope stability, hauling and dumping issues, and interactions with groundwater. This paper deals with the above mentioned issues, illustrating a rational approach applied on the case of a large limestone quarry where the thickness of the overburden is relevant and the spoil material has to be dumped in a flooded pit. The proposed multidisciplinary approach led to the selection of most suitable methods for excavation, transportation and disposal. The selection was based on a detailed laboratory and site characterisation that defined favorable and adverse factors to be considered during the preliminary study of a large quarrying project.

关键词： Open pit Overburden Soil testing Limestone quarry Muck On-site testing

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

Immersion graded index optics:theory,design,and prototypes

引用

Microsystems & Nanoengineering 2022年第3期8卷 235-245页

作者： Nina Vaidya lav Solgard Electrical engineering Stanford UniversityStanfordCA 94305USA faculty of Eengineering and physical sciences Universty of SouthamptonSouthampton SO167QFUK

Immersion optics enable creation of systems with improved optical concentration and coupling by taking advantage of the fact that the luminance of light is proportional to the square of the refractive index in a lossless optical system.Immersion graded index optical concentrators,that do not need to track the source,are described in terms of theory,simulations,and experiments.We introduce a generalized design guide equation which follows the Pareto function and can be used to create various immersion graded index optics depending on the application requirements of concentration,refractive index,height,and efficiency.We present glass and polymer fabrication techniques for creating broadband transparent graded index materials with large refractive index ranges,(refractive index ratio)^(2)of~2,going many fold beyond what is seen in nature or the optics industry.The prototypes demonstrate 3x optical concentration with over 90%effciency.We report via functional prototypes that graded-index-lens concentrators perform close to the theoretical maximum limit and we introduce simple,inexpensive,design-flexible,and scalable fabrication techniques for their implementation.

关键词： graded optics refractive

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

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling

引用

Frontiers of Chemical Science and engineering 2022年第7期16卷 1149-1163页

作者： Xuesong Lu Xiaojiao Luo Warren A.Thompson Jeannie Z.Y.Tan MMercedes Maroto-Valer Research Centre for Carbon Solutions School of Engineering and Physical SciencesHeriot-Watt UniversityEdinburgh EH144ASUK

The production of solar fuels via the photoreduction of carbon dioxide to methane by titanium oxide is a promising process to control greenhouse gas emissions and provide alternative renewable fuels. Although several reaction mechanisms have been proposed, the detailed steps are still ambiguous, and the limiting factors are not well defined. To improve our understanding of the mechanisms of carbon dioxide photoreduction, a multiphysics model was developed using COMSOL. The novelty of this work is the computational fluid dynamic model combined with the novel carbon dioxide photoreduction intrinsic reaction kinetic model, which was built based on three-steps, namely gas adsorption, surface reactions and desorption, while the ultraviolet light intensity distribution was simulated by the Gaussian distribution model and Beer-Lambert model. The carbon dioxide photoreduction process conducted in a laboratory-scale reactor under different carbon dioxide and water moisture partial pressures was then modeled based on the intrinsic kinetic model. It was found that the simulation results for methane, carbon monoxide and hydrogen yield match the experiments in the concentration range of 10^(−4) mol·m^(–3) at the low carbon dioxide and water moisture partial pressure. Finally, the factors of adsorption site concentration, adsorption equilibrium constant, ultraviolet light intensity and temperature were evaluated.

关键词： carbon dioxide photoreduction computational fluid dynamic simulation kinetic model Langmuir adsorption

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

Effect of Post-irradiation Annealing on Microstructure Evolution and Hardening in GH3535 Alloy Irradiated by Au Ions

引用

Acta Metallurgica Sinica(English Letters) 2022年第11期35卷 1903-1911页

作者： Cunyun Hu Hefei Huang Zhenbo Zhu Awen Liu Yan Li School of physical Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Instituteof AppliedPhysics ChineseAcademy of SciencesShanghai 201800China School of nuclear Scienceand Technology University of Chinese Academy of SciencesBeijing 100049China

The Au ion-irradiation experiments of GH3535 alloy,a candidate alloy structural material for molten salt reactor,was carried out in this study.Herein,isochronous annealing experiments were conducted from 200 to 850 ℃ to clarify the evolution behavior of damage defects with increasing temperature.The coarsening of dislocation loops and formation and dissolution of precipitates with increasing annealing temperature were characterized by transmission electron microscopy.Nanoindentation was performed to measure the variation of hardness caused by irradiation.Additionally,the relationship between irradiation hardening and microstructure evolution was established.This study lays a foundation for the evaluation of irradiation damage properties of GH3535 alloy at different annealing temperatures.

关键词： Nickel-based alloy Irradiation Annealing Dislocation loop Precipitate

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

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：