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Molecular insights into oil detachment from hydrophobic quartz surfaces in clay-hosted nanopores during steam-surfactant co-injection

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Petroleum Science 2024年第4期21卷 2457-2468页

作者： Ben-jie-ming liu Xuan-Tong Lei Mohammadali Ahmadi Zhangxin Chen Department of Chemical and Petroleum Engineering University of Calgary2500 University Dr.NWCalgaryT2N 1N4Canada Eastern Institute of Technology Ningbo315200ZhejiangChina

Thermal recovery techniques for producing oil sands have substantial environmental *** can efficiently improve thermal bitumen recovery and reduce the required amount of *** a technique requires solid knowledge about the interaction mechanism between surfactants,bitumen,water,and rock at the nanoscale *** particular,oil sands ores have extremely complex mineralogy as they contain many clay minerals(montmorillonite,illite,kaolinite).In this study,molecular dynamics simulation is carried out to elucidate the unclear mechanisms of clay minerals contributing to the bitumen recovery under a steam-anionic surfactant co-injection *** found that the clay content significantly influenced an oil detachment process from hydrophobic quartz *** reveal that the presence of montmorillonite,illite,and the siloxane surface of kaolinite in nanopores can enhance the oil detachment process from the hydrophobic surfaces because surfactant molecules have a stronger tendency to interact with bitumen and ***,the gibbsite surfaces of kaolinite curb the oil detachment *** interaction energy analysis,the siloxane surfaces of kaolinite result in the most straightforward oil detachment *** addition,we found that the clay type presented in nanopores affected the wettability of the quartz *** quartz surfaces associated with the gibbsite surfaces of kaolinite show the strongest *** comparing previous experimental findings with the results of molecular dynamics(MD)simulations,we observed consistent wetting *** alignment serves to validate the reliability of the simulation *** outcome of this paper makes up for the lack of knowledge of a surfactant-assisted bitumen recovery process and provides insights for further in-situ bitumen production engineering designs.

关键词： Clay minerals Bitumen Contact angle Interaction energy Surfactant Molecular dynamics

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Tunable Lower Critical Solution Temperature of Poly(butyl acrylate)in Ionic Liquid Blends

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Chinese Journal of Polymer Science 2021年第5期39卷 585-591,I0006页

作者： Lie Chen Jin Huang Cong Zhao Jia-Jia Zhou ming-jie liu Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China School of Physics Beihang UniversityBeijing 100191China International Research Institute for Multidisciplinary Science Beihang UniversityBeijing 100191China

We describe the lower critical solution temperature(LCST)-type phase behavior of poly(butyl acrylate)(PBA)dissolved in hydrophobic 1-alkyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}amide ionic liquids(ILs).The temperature-composition phase diagrams of these PBA/ILs systems are strongly asymmetric with the critical composition shifted to low concentrations of *** the molecular weight increases from 5.0×10^(3) to 2.0×10^(4),the critical temperature decreases by about 67℃,and the critical composition shifts to a lower ***,the LCST of PBA/ILs system increases as increasing the alkyl side chain length in the imidazolium *** IL blends as solvents,the LCST of PBA can be tuned almost linearly over a wide range by varying the mixing ratio of two ionic liquids without modifying the chemical structure of the polymers.

关键词： PBA Ionic liquid LCST Thermo-responsive

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Bioinspired Adaptive Gel Materials with Synergistic Heterostructures

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Chinese Journal of Polymer Science 2018年第6期36卷 683-683,684-696页

作者： Zi-Guang Zhao Yi-Chao Xu Ruo-Chen Fang ming-jie liu Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China International Research Institute for Multidisciplinary Science Beihang UniversityBeijing 100191China Beijing Advancedlnnovation Center for Biomedical Engineering Beihang UniversityBeijing 100191China

In nature, many biological soft tissues with synergistic heterostructures, such as sea cucumbers, skeletal muscles and cartilages, exhibit high functionality to adapt to complex environments. In artificial soft materials, hydrogels are similar to biological soft tissues due to the unique integration of ＂soft and wet＂ properties and elastic characteristics. However, currently hydrogel materials lack their necessary adaptability, including narrow working temperature windows and uncontrollable mechanics, thus restrict their engineering application in complex environments. Inspired by abovementionedbiological soft tissues, researchers have increasingly developed heterostructural gel materials as functional soft materials with high adaptability to various mechanical and environmental conditions. This article summarizes our recent work on high-performance adaptive gel materials with synergistic heterostructures, including the critical design criteria and the state-of-the-art fabrication strategies of our gel materials. The functional adaptation properties of these heterostructural gel materials are also presented in details, including temperature, wettability, mechanical and shape adaption.

关键词： Bioinspired materials Adaptive gels Hydrogels Mechanical strength Shape memory

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Dolomitization of the Ordovician subsalt Majiagou Formation in the central Ordos Basin,China:fluid origins and dolomites evolution

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Petroleum Science 2021年第2期18卷 362-379页

作者： Ying Xiong Li-Chao Wang Xiu-Cheng Tan Yun liu ming-jie liu Zhan-Feng Qiao State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500SichuanChina Division of Key Laboratory of Carbonate Reservoirs CNPCSouthwest Petroleum UniversityChengdu610500SichuanChina Institute of Subsurface Energy Systems Clausthal University of Technology38678Clausthal-ZellerfeldGermany Research Institute of Petroleum Exploration and Development PetroChina Southwest Oil and Gas Field CompanyChengdu610000SichuanChina Key Laboratory of Carbonate Reservoir CNPCHangzhou310023ZhejiangChina

The Middle Ordovician subsalt Majiagou Formation in the Ordos Basin comprises pervasively dolomitized shallow marine limestone and is a major reservoir rich in natural gas *** types of dolomite matrix and cement were identified based on petrographic textures:(very)finely crystalline,non-planar to planar-s matrix dolomite(Md1);finely to medium crystalline,planar-s to planar-e matrix dolomite(Md2);microbialites comprising dolomite microcrystals(Md3);and finely to coarsely crystalline dolomite cement(Cd).The Md1 and Md2 dolomites were controlled by alternating lagoon-shoal facies and haveδ13C values(−1.89 to+1.45‰VPDB for Md1,−1.35 to+0.42‰VPDB for Md2)that fall within or are slightly higher than the coeval seawater,suggesting the dolomitizing fluid of evaporated ***2 dolomite was then subjected to penecontemporaneous karstification by meteoric water and burial recrystallization by sealed brines during diagenesis,as indicated by its relatively lowerδ18O values(−8.89 to−5.73‰VPDB)and higher 87Sr/86Sr ratios(0.708920–0.710199).Md3 dolomite comprises thrombolite and stromatolite and is interpreted to form by a combination of initial microbial mediation and later replacive dolomitization related to evaporated *** dolomite was associated with early-formed karst system in the Md2 host *** lowestδ18O values(−11.78 to−10.18‰VPDB)and 87Sr/86Sr ratios(0.708688–0.708725)and fluid inclusion data(Th:123–175°C)indicate involvement of hydrothermal fluid from which the Cd dolomite precipitated during deep *** results reveal the multi-stage dolomitization history of the Majiagou Formation and provide new constraints on fluid origins and dolomites evolution during deep burial in old superimposed basins,such as the Ordos Basin and elsewhere.

关键词： Dolomitization Fluid origin Dolomite reservoir Hydrothermal alteration Ordos Basin

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Blistering and flaking of amorphous alloys bombarded withHe ions

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Nuclear Science and Techniques 2001年第2期12卷 117-125页

作者： HOU ming-Dong, liu jie, ZHANG Qing-Xiang, liu Gang (Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhon 730000 ) Institute of Modern Physics the Chinese Academy of Sciences

The blistering and flaking behavior of many kinds of amorphous alloys under helium ion bombardment at room temperature was investigated. Helium ions with energies of 40keV and 60keV were implanted within the fluence range (1.0～4.0)×1018ions/cm2. The surface topography of samples after irradiation was observed by using a scanning electron microscope. The diameter of blister and the thickness of exfoliated blister lids were measured. The results showed that many kinds of surface topography characteristics appeared for different fluences, energies and amorphous alloys, such as flaking, blistering, exfoliation, blister rupture, secondgeneration blistering and porous structure. The dependdence of surface damage modesand the critical fluence for the onset of blistering and flaking on the sort of materials and ion energy was discussed.

关键词：非晶体合金结泡表面剥落氦离子轰击

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Improved Linear Attacks on the Chinese Block Cipher Standard

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Journal of Computer Science & Technology 2014年第6期29卷 1123-1133页

作者：刘明洁陈佳哲 Beijing International Center for Mathematical Research Peking University China Information Technology Security Evaluation Center

The block cipher used in the Chinese Wireless LAN Standard （WAPI）, SMS4, was recently renamed as SM4, and became the block cipher standard issued by the Chinese government. This paper gives a method for finding the linear approximations of SMS4. With this method, 19-round one-dimensional approximations are given, which are used to improve the previous linear cryptanalysis of SMS4. The 19-round approximations hold with bias 2-62.27; we use one of them to leverage a linear attack on 23-round SMS4. Our attack improves the previous 23-round attacks by reducing the time complexity. Furthermore, the data complexity of our attack is further improved by the multidimensional linear approach.

关键词： block cipher SMS4 linear cryptanalysis multidimensional linear cryptanalysis

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Effects of chebulinic acid on differentiation of human leukemia K562 cells

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Acta Pharmacologica Sinica 2004年第2期25卷 105-112页

作者： Zong-chun YI, Zhao WANG2, Hai-xia LI, ming-jie liu, Rong-cong WU, Xiao-hui WANG Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China Department of Biological Sciences and Biotechnology Tsinghua University 北京 100084

AIM: To study effects of chebulinic acid on erythroid and megakaryocytic differentiation in K562 cells. METHODS: The benzidine staining method was used to evaluate hemoglobin synthesis; the expression of erythroid specific glycophorin A (GPA) protein and megakaryocytic surface marker CD61 was determined by flow cytometry using fluorescence labeled antibodies; erythroid and megakaryocytic mRNA expression was analyzed by RT-PCR. RESULTS: During erythroid differentiation induced by butyric acid (BA) or hemin, chebulinic acid not only inhib- ited the hemoglobin synthesis of BA- and hemin-treated K562 cells in concentration-dependant manner with IC50 of 4 μmol/L and 40 μmol/L respectively, but also inhibited another erythroid differentiation marker acetylcholinesterase at the concentration of 50 μmol/L in the cells either treated or untreated with each erythroid differentiation inducers, whereas chebulinic acid 50 μmol/L did not change GPA protein expression in these cells significantly. When K562 cells were treated with TPA 50 μg/L for 72 h to induce megakaryocytic differentiation, the presence of chebulinic acid 50 μmol/L slightly provoked the decrease of GPA protein expression induced by TPA. Chebulinic acid did not change the TPA-induced CD61 expression at the same concentration. Chebulinic acid also reduced the mRNA levels of erythroid relative genes including γ-globin, PBGD, NF-E2, and GATA-1 genes in K562 cells either treated or untreated with BA, whereas chebulinic acid upregulated the mRNA levels of GATA-2 transcription factor in these cells. CONCLUSION: Chebulinic acid had inhibitory effect on erythroid differentiation likely through changing transcriptional activation of differentiation relative genes, which suggests that chebulinic acid or other tannins might influence the efficiency of some anti-tumor drugs-induced differentiation or the hematopoiesis processes.

关键词： K562cells chebulinic acid butyrates hemin glycophorin CD61 antigen gene expression regulation celldifferentiation

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Stereoselectivity in metabolic 3-reduction of tibolone in healthy Chinese female volunteers

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Acta Pharmacologica Sinica 2005年第12期26卷 1527-1530页

作者： ming ZUO~1 ming-jie GAO Zhen liu Lei CAI Geng-li DUAN~2 Department of Pharmaceutical Analysis,School of Pharmacy,Fudan University,Shanghai 200032,China Laboratory for Chemical Defense and Microscale Analysis,Zhijiang 443200,China. Department of Pharmaceutical Analysis School of Pharmacy Fudan University Shanghai China

Aim:To investigate the stereoselectivity in human metabolic 3-reduction ***:Twenty healthy Chinese female volunteers were given a singleoral dose of tibolone(2.5 mg),and serial blood samples were collected *** plasma concentrations of the two pharmacologically active 3-hydroxyl metabolites of tibolone,3α-hydroxyl-7-methyl-norethynodrel(3α-HMN)and 3β-hydroxyl-7-methyl-norethynodrel(3β-HMN)in plasma were determinedby using a validated liquid chromatography-mass spectrometry(LC-MS)***:The apparent elimination half-life(Tw)of 3α-HMN was 1.43±0.52 h,andthat of 3β-HMN was 1.53±0.60 *** plasma concentrations(Cmax)werefound to be 8.75±4.36 μg/L for 3α-HMN and 3.59+ 1.81 μg/L for 3β-*** the plasma concentration versus time curve(AUC0-t)were 26.30±12.14 μg.h-1·L-1for 3α-HMN and 9.89±4.93 μg·h-1·L-1for 3β-***:Stereo-selective differences exist in the pharmacokinetics of tibolone metabolism inhumans.

关键词： tibolone metabolite pharmacokinetics stereoSelectivity

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Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang liu Xiang Li Shen Du ming Gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

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

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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

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