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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： Mei Zhang wenhao li Yangfei Chen Yang Jiang Xiaofei Guo Han Dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

Study of limits to the rotation function in the SA-RC turbulence model

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Chinese Journal of Aeronautics 2023年第1期36卷 246-265页

作者： wenhao li Yangwei liU School of Energy and Power Engineering Beihang UniversityBeijing 100191China National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics Beihang UniversityBeijing 100191China State Key Laboratory of Aerodynamics China Aerodynamics Research and Development CenterMianyang 621000China

The Rotation and Curvature(RC)correction is an important turbulence model modifi-cation approach,and the Spalart-Allmaras model with the RC correction(SA-RC)has been exten-sively studied and *** a multiplier of the modelling equation’s production term,the rotation function f_(r1)should have a cautiously designed value range,but its limit varies in different models and flow ***,the need of restriction is discussed theoretically,and the common range of f_(r1)is explored in Burgers ***,the SA-RC model with different limits is tested *** f_(r1)always appears in the SA-RC model,and the difference between simula-tion results brought by the limits is not negligible.A lower limit of 0 enhances turbulence produc-tion,and therefore the vortex structures are dissipated faster and shrink in size,while an upper limit plays an opposite *** that the lower limit of 0 usually promotes the simulation accu-racy and fixes the numerical defect,whereas the upper limit worsens the predictive performance in most cases,it is recommended to limit f_(r1)non-negative while utilizing the SA-RC *** addi-tion,the RC-corrected model has a better prediction of the attached flow near curved walls,while the SA-Helicity model largely improves the simulation accuracy of three-dimensional large-scale *** model combining both corrections has the potential to become more adaptive and more accurate.

关键词： Non-equilibrium transport characteristics Rotation and curvature cor-rection Rotation function SA turbulence model Separation flow Tip leakage flow

Some aspects of excellent marine source rock formation:implications on enrichment regularity of organic matter in continental margin basins

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Chinese Journal Of Geochemistry 2015年第1期34卷 47-54页

作者： wenhao li Zhihuan Zhang Youchuan li School of Geosciences China University of Petroleum Research Institute of Unconventional Petroleum and Renewable Energy China University of Petroleum State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum CNOOC Research Institute

Through the analysis of ocean organisms, the distribution characteristics and enrichment of organic matters in modern marine sediments and ancient marine strata, this paper shows that the main factors influencing the formation of excellent marine source rocks are the paleoclimate, biologic productivity, terrestrial organic matter, oxidation–reduction environment, sedimentation rate, and the type of the basin. In addition to those factors,high biologic productivity or high content of terrestrial organic matter input is a requirement for the enrichment of the organic matter in a marine environment. Reducing environment was favorable for organic matter accumulation and preservation in depositing and early diagenesis stage, which is an important element for the formation of high-quality marine source rocks. Paleoclimate also influences the marine source rocks formation, as humid subtropical and tropical climates are the most favorable regimes for the formation of marine source rocks. Wind transports some vascular plant materials into the marine environment. Furthermore, upwellings driven by steady wind can cause high biologic productivity, thus formingorganic-C-rich mud. Suitable sedimentation rate is beneficial for marine organic matter accumulation. Moreover, the type of the basin also plays an important role in the development of marine source rocks. Silled basins with a positive water balance often act as nutrient traps, thus enhancing both productivity and organic matter preservations, while in open oceans, organic matter enrichment in sediments has just been found in the oxygen minimum layers.

关键词：海相烃源岩大陆边缘盆地富集规律有机物氧化还原环境生物生产力海洋沉积物海洋生物

New perspective of Miocene marine hydrocarbon source rocks in deep-water area in Qiongdongnan Basin of northern South China Sea

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Acta Oceanologica Sinica 2012年第5期31卷 107-114页

作者： li wenhao ZHANG Zhihuan li Youchuan FU Ning State Key Laboratory of Petroleum Resource and Prospecting China University of PetroleumBeijing 102249China CNOOC Research Institute Beijing 100027China

Drilling wells reveal that the organic matter abundance of Miocene marine source rocks in shallow water area of the Qiongdongnan Basin is relatively low with poor hydrocarbon generation poten- tial. However, in some drilling wells of deep water area close to the central depression belt, Miocene marine source rocks with better organic matter abundance and hydrocarbon generation have been found, which have achieved better source rock standard based on the analysis of geochemical charac- teristics. Although there are no exploratory wells in deep water area of the research region, through the comparative analysis of geochemical data of several typical exploratory wells respectively from shallow water area in the basin, central depression belt margin in deep-water area of the basin and Site 1148 of deep sea drilling in the South China Sea Basin, it reveals that the tendency of the quality of source rocks becomes positive gradually from delta to bathyal environment, which then becomes negative as in deep oceanic environment. Owing to the lack of terrestrial organic matter input, the important controlling factors of Miocene marine source rocks in the Qiongdongnan Basin are ocean productivity and preservation conditions of organic matter. The element geochemistry data indicate that the tendency of the paleoproductivity and the preservation conditions of organic matter become positive as water depth increase from shallow area to bathyal area close to central depression belt. So it is speculated that there must exist high quality source rocks in the central depression area where the preservation conditions of organic matter are much better. Besides, in theory, in oxygen-poor zone of oceanic environment at the water depth 400–1 000 m, the preservation conditions of organic matter are well thus forming high-quality marine source rocks. The result- ing speculation, it is reasonable to consider that there are high hydrocarbon generation potential source rocks in bathyal environme

关键词： hydrocarbon-generation potential marine source rocks ocean productivity preserva- tion condition deep water area deep sea drilling

Ultrathin organic solvent nanofiltration membrane with polydopamine-HKUST-1 interlayer for organic solvent separation

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Journal of Environmental Sciences 2024年第7期141卷 182-193页

作者： Haike li Xindong li Guozai Ouyang lijinhong Huang Lang li wenhao li Wanfu Huang Duokun li Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and TechnologyGanzhou 341000China Innovation Center for Water Quality Security Technology at Ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou 341000China School of Architecture and Design Jiangxi University of Science and TechnologyGanzhou 341000China WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityWA 6845Australia School of Materials Science and Engineering Tiangong UniversityTianjin 300387China

Polydopamine(PDA)and metal-organic skeleton HKUST-1 were co-deposited on the base membrane of hexamethylenediamine(HDA)-crosslinked polyetherimide(PEI)ultrafiltration membrane as the interlayer,and high-throughput organic solvent nanofiltration membrane(OSN)was prepared by interfacial polymerization and solvent activation *** polyamide(PA)layer surface roughness from 28.4 nm in PA/PEI to 78.3 nm in PA/PDA-HKUST-10.6/PEI membrane,reduced the thickness of the separation layer from 79 to 14 nm,and significantly improved the hydrophilic,thermal and mechanical *** flux of the PA/PDA-HKUST-10.6/PEI membrane in a 0.1 g/L Congo Red(CR)ethanol solution at 0.6 MPa test pressure reached 21.8 L/(m^(2)·hr)and the rejection of CR was 92.8%.Solvent adsorption test,N,N-dimethylformamide(DMF)immersion experiment,and long-term operation test in ethanol showed that the membranes had high solvent *** solvent flux test demonstrated that,under the test pressure of 0.6 MPa,the flux of different solvents ranked as follows:methanol(56.9 L/(m^(2)·hr))>DMF(39.6 L/(m^(2)·hr))>ethanol(31.2 L/(m^(2)·hr))>IPA(4.5 L/(m^(2)·hr))>N-hexane(1.9 L/(m^(2)·hr)).The ability of the membranes to retain dyes in IPA/water dyes solution was also *** flux of the membrane was 30.4 L/(m^(2)·hr)and the rejection of CR was 91.6%when the IPA concentration reached 50%.This OSN membrane-making strategy is economical,environment-friendly and efficient,and has a great application prospect in organic solvent separation systems.

关键词： Interfacial polymerization Organic solvent nanofiltration Interlayer Metal-organic frameworks Polydopamine

Efficient and selective recovery of Gd(Ⅲ)via polyethyleneimine modification of lanthanum-based metal-organic frameworks

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Journal of Rare Earths 2024年第1期42卷 210-219,I0007页

作者： wenhao li lijinhong Huang Bin Xiao Xiaoguang Duan Haike li Lang li Wanfu Huang Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and TechnologyGanzhou341000China Innovation Center for Water Quality Security Technology at Ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou341000China Faculty of Science and Engineering WA School of Mines:MineralsEnergy and Chemical EngineeringCurtin UniversityWAAustralia School of Architecture and Design Jiangxi University of Science and TechnologyGanzhou341000China School of Resources and Architectural Engineering Gannan University of Science and TechnologyGanzhou341000China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideSA5005Australia School of Resource and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou341000China

With the development of the economy and the increasing demand for environmental protection,the efficient and selective recovery of Gd(Ⅲ)from actual wastewater is of critical *** this work,lanthanum-based metal-organic framework(LaBDC)materials were prepared by a hydrothermal method,and then polyethyleneimine(PEI)and LaBDC were combined by an impregnation method to form a novel LaBDC@xPEI *** prepared materials were characterized using Fourier transfo rm infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDX),B runauer-Emmett-Teller(BET),thermogravimetric analysis(TGA)and X-ray photoelectron spectroscopy(XPS).Experiments show that LaBDC@50%PEI has the highest adsorption capacity(181.77 mg/g)among lanthanum-based MOFs with different PEI loadings at pH=5.5,which is about 5.1 times that of bare *** adsorption isotherm analysis shows that LaBDC@50%PEI follows the Langmuir *** addition,the adsorption kinetics of LaBDC@50%PEI follows a pseudo-second-order kinetic model,indicating that the adsorption process is chemical *** is worth noting that LaBDC@50%PEI maintains good adsorption performance and stability after three recycling tests,and exhibits excellent selectivity in cation interference ***,the LaBDC@50%PEI composites possess good stability and hold great promises in rapid recovery of Gd(Ⅲ)from practical aqueous environments.

关键词： Wet-impregnation method Polyethylene imine Metaleorganic frameworks Lanthanum Recovery of Gd(Ⅲ) Rare earths

利格列汀调控巨噬细胞极化和破骨细胞形成缓解磨损颗粒诱导的骨质溶解

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中国组织工程研究 2025年第12期29卷 2421-2428页

作者：杨鹏张巍李文明李文豪吴泽彬周军耿德春苏州大学附属第一医院骨科江苏省苏州市215006

背景:研究发现,在利格列汀的干预下,巨噬细胞更多的由M1转向M2极化,降低了相关炎性因子的释放,缓解了局部炎症。目的:探讨利格列汀对巨噬细胞极化、破骨细胞活化及磨损颗粒诱导炎性骨溶解的影响。方法:(1)细胞实验:①巨噬细胞极化:将RAW... 详细信息

背景:研究发现,在利格列汀的干预下,巨噬细胞更多的由M1转向M2极化,降低了相关炎性因子的释放,缓解了局部炎症。目的:探讨利格列汀对巨噬细胞极化、破骨细胞活化及磨损颗粒诱导炎性骨溶解的影响。方法:(1)细胞实验:①巨噬细胞极化:将RAW264.7细胞分4组培养,对照组细胞加入高糖培养基;M1诱导组加入M1诱导培养基(含脂多糖100 ng/mL和干扰素γ20 ng/mL的高糖培养基)模拟炎症环境;利格列汀低、高剂量组分别加入50,200 nmol/L利格列汀处理4 h后加入M1诱导培养基。巨噬细胞极化诱导24 h后,分别进行巨噬细胞极化免疫荧光染色和RT-PCR检测。②破骨细胞活化:将RAW264.7细胞分为4组培养,对照组使用高糖培养基培养,破骨细胞诱导组、利格列汀低剂量组及高剂量组进行破骨细胞诱导,待微小破骨细胞成形后,用利格列汀(50,200 nmol/L)分别干预细胞3 d,进行细胞抗酒石酸酸性磷酸酶染色和RT-PCR检测。(2)动物实验:将24只雄性C57BL/6J小鼠随机分为4组,即假手术组、模型组、利格列汀低剂量组及高剂量组,后3组通过将钛颗粒悬浊液注射至颅骨表面建立颅骨骨溶解模型,从造模后第2天开始,利格列汀低、高剂量组分别灌胃利格列汀(2,10 mg/kg),每天1次,造模3周后,检测血清巨噬细胞极化标志蛋白及炎性因子水平,收集颅骨进行micro-CT扫描、骨参数分析及苏木精-伊红染色评估骨溶解及形态学变化。结果与结论:①细胞实验:与M1诱导组比较,利格列汀低、高剂量组可显著抑制巨噬细胞的M1极化、促进M2极化(P<0.01),且以高剂量组效果更显著(P<0.01)。与破骨诱导组比较,利格列汀低、高剂量组可抑制破骨细胞的活化及骨质吸收,且以高剂量组抑制更显著。与对照组比较,M1诱导组炎性因子mRNA表达升高(P<0.01),而与M1诱导组相比较,利格列汀低、高剂量组炎性因子mRNA表达显著降低(P<0.01)。与对照组比较,破骨诱导组破骨功能标志物的mRNA表达升高(P<0.01);与破骨诱导组比较,利格列汀低、高剂量组破骨功能标志物的mRNA表达降低(P<0.01),且以高剂量组降低更明显。②动物实验:钛颗粒植入导致小鼠颅骨骨溶解破坏,利格列汀可抑制钛颗粒诱导的骨溶解,其中以高剂量组抑制作用更显著。结果表明利格列汀具有调节巨噬细胞极化、抑制破骨细胞活化及对骨骼系统的保护作用。

关键词：利格列汀巨噬细胞极化破骨细胞活化磨损颗粒无菌性假体松动假体周围骨溶解

Fluid inclusions and oil charge history in the reservoirs of the Yongjin oilfield in central Junggar Basin

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Chinese Journal Of Geochemistry 2013年第1期32卷 78-84页

作者： Xie Guanbao Qin liming Zhang Zhihuan li wenhao School of Geosciences China University of Petroleum Sinopec Research Institute of Petroleum Engineering State Key Laboratory for Petroleum Resources and Prospecting China University of Petroleum

In the Yongjin oilfield of southern Junggar Basin, many wells have been drilled to produce industrial oils. Based on the analysis of fluid inclusions in the reservoirs, in combination with the geological and thermal evolution, the charge history in this area has been studied. The results indicate that the Jurassic Formation and Cretaceous Formation reservoirs contain abundant oil and gas inclusions, and four types of fluid inclusions have been distinguished. According to the homogenization temperatures of the fluid inclusions, the hydrocarbons charged the Cretaceous Formation for two periods, one ranges from the Late Cretaceous period to the Eogene period, and the other ranges from the Neocene period to the present. The oil filling history is correlated with the oil source correlation analysis, which is controlled by the movement of the Che-Mo plaeo uplift. Overall, oil accumulation is characterized by the superposition of two sets of source rocks for two stages in the Shawan depression.

关键词：准噶尔盆地南缘流体包裹体历史油气充注水库油田均一温度晚白垩世

The main controlling factors and developmental models of Oligocene source rocks in the Qiongdongnan Basin,northern South China Sea

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Petroleum Science 2013年第2期10卷 161-170页

作者： li wenhao Zhang Zhihuan li Youchuan liu Chao Fu Ning State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum CNOOC Research Institute Petroleum Engineering College China University of Petroleum

Coals developed in the Oligocene Yacheng and lingshui formations in the Qiongdongnan Basin have high organic matter abundance, and the dark mudstones in the two formations have reached a good source rock standard but with strong heterogeneity. Through the analysis of trace elements, organic macerals and biomarkers, it is indicated that plankton has made little contribution to Oligocene source rocks compared with the terrestrial higher plants. The organic matter preservation depends on hydrodynamics and the redox environment, and the former is the major factor in the study area. During the sedimentary period of the Yacheng Formation, tidal flats were developed in the central uplift zone, where the hydrodynamic conditions were weak and the input of terrestrial organic matter was abundant. So the Yacheng Salient of the central uplift zone is the most favorable area for the development of source rocks, followed by the central depression zone. During the sedimentary period of the lingshui Formation, the organic matter input was sufficient in the central depression zone due to multiple sources of sediments. The semi-enclosed environment was favorable for organic matter accumulation, so high quality source rocks could be easily formed in this area, followed by the Yacheng salient of central uplift zone. Source rocks were less developed in the northern depression zone owing to poor preservation conditions,

关键词： Hydrocarbon generation potential paleoproductivity preservation conditions hydrodynamicconditions redox conditions Oligocene source rocks Qiongdongnan Basin northern South China Sea

Tannic acid/Fe^(3+)interlayer for preparation of high-permeability polyetherimide organic solvent nanofiltration membranes for organic solvent separation

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Chinese Journal of Chemical Engineering 2023年第5期57卷 17-29页

作者： Haike li Xindong li Guozai Ouyang Lang li Zhaohuang Zhong Meng Cai wenhao li Wanfu Huang Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and TechnologyGanzhou 341000China Innovation Center for Water Quality Security Technology at Ganjiang River Basin Jiangxi University of Science and TechnologyGanzhou 341000China School of Civil and Surveying&Mapping Engineering Jiangxi University of Science and TechnologyGanzhou 341000JiangxiChina

Organic solvent nanofiltration(OSN)membranes have a great application prospect in organic solvent separation,but the development of OSN membranes is mainly restricted by trade-off between permeability and rejection *** this work,a TA/Fe^(3+)polymer was introduced into polyetherimide(PEI)ultrafiltration membranes crosslinked with hexamethylene diamine as the intermediate layer,and OSN membranes with high separation performance and solvent permeability were obtained through interfacial polymerization and solvent *** interlayer with high surface hydrophilicity and a fixed pore structure controlled the adsorption/diffusion of the amine monomer during interfacial polymerization,forming a smooth(average surface roughnessling resistance than PA-HDA/PEI membrane,and it was found to have better stability performance through different solvent immersion experiments and continuous operation in 0.1 g·L^(-1)BS ethanol *** with thin-film composite nanofiltration membranes,the PA-Fe^(3+)_(3)-HDA/PEI membrane can be manufactured from an economical and environment-friendly method and overcomes the trade-off between permeability and rejection rate,showing great application potential in organic solvent separation systems.

关键词： Nanofiltration membrane Waste treatment Surface Filtration Tannic acid Interfacial polymerization