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Experimental Study of Fluorine Transport Rules in Unsaturated Stratified Soil

Journal of China University of Mining and Technology 2007年第3期17卷 382-386页

作者： ZHANG Hong-mei SU Bao-yu liu peng-hua ZHANG Wei School of Resources ＆ Safety Engineering China University of Mining ＆ Technology Beijing 100083 China College of Water Conservancy and Hydropower Engineering Hohai University Nanjing Jiangsu 210098 China

With the aid of soil column test models,the transport rules of fluorine contaminants in unsaturated stratified soils are discussed. Curves of F-concentrations at different times and sites in the unsaturated stratified soil were ob-tained under conditions of continuous injection of fluoride contaminants and water. Based on the analysis of the actual observation data,the values between computed results and observed data were compared. It is shown that the chemical properties of fluorine ions are active. The migration process of fluorine ions in soils is complex. Because of the effect of adsorption and desorption,the curve of the fluorine ion breakthrough curve is not symmetric. Its concentration peak value at each measuring point gradually decays. The tail of the breakthrough curve is long and the process of leaching and purifying using water requires considerable time. Along with the release of OHˉ in the process of fluorine absorp-tion,the pH value of the soil solution changed from neutral to alkalinity during the test process. The first part of the breakthrough curve fitted better than the second part. The main reason is that fluorine does not always exist in the form of fluorinions in groundwater. Given the long test time,fluorinions possibly react with other ions in the soil solution to form complex water-soluble fluorine compounds. Only the retardation factor and source-sink term have been considered in our numerical model,which may leads to errors of computed values. But as a whole the migration rules of fluorine ions are basically correct,which indicates that the established numerical model can be used to simulate the transport rules of fluorine contaminants in unsaturated stratified soils.

关键词： fluorine unsaturated soil transport rules soil column test numerical simulation

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超声造影参数联合血清AFP、DKK1在原发性肝癌与转移性肝癌鉴别中的临床价值

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现代生物医学进展 2024年第7期24卷 1359-1363页

作者：刘蓬花钟岚周长梁刘国武李建军邵阳学院附属第一医院超声医学科湖南邵阳422000 邵阳学院附属第一医院肝胆外科湖南邵阳422000

目的:探讨超声造影参数联合血清甲胎蛋白(AFP)、分泌型蛋白Dikkopf-1(DKK1)鉴别原发性肝癌(PLC)与转移性肝癌(MLC)的价值。方法:选取2020年2月至2022年12月我院收治的92例PLC患者(PLC组)、95例MLC患者(MLC组),所有患者均接受超声造影检... 详细信息

目的:探讨超声造影参数联合血清甲胎蛋白(AFP)、分泌型蛋白Dikkopf-1(DKK1)鉴别原发性肝癌(PLC)与转移性肝癌(MLC)的价值。方法:选取2020年2月至2022年12月我院收治的92例PLC患者(PLC组)、95例MLC患者(MLC组),所有患者均接受超声造影检查和血清AFP、DKK1水平检测。受试者工作特征(ROC)分析超声造影参数联合血清AFP、DKK1鉴别PLC和MLC的价值。结果:PLC组始增时间、增强速率、50%倾斜率低于MLC组(P<0.05),峰值时间、增强强度,血清AFP、DKK1水平高于MLC组(P<0.05)。始增时间、增强速率、50%倾斜率、峰值时间、增强强度、AFP、DKK1鉴别PLC与MLC的曲线下面积为0.725、0.655、0.716、0.697、0.761、0.695、0.754,联合应用鉴别PLC与MLC的曲线下面积为0.882,高于单独鉴别。结论:联合超声造影参数和血清AFP、DKK1在PLC和MLC鉴别中具有较高效能,优于单独影像或血清指标鉴别。

关键词：原发性肝癌转移性肝癌超声造影甲胎蛋白分泌型蛋白Dikkopf-1

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Ultra-robust informational metasurfaces based on spatial coherence structures engineering

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Light(Science & Applications) 2024年第7期13卷 1310-1319页

作者： Leixin liu Wenwei liu Fei Wang Xiaofeng peng Duk-Yong Choi hua Cheng Yangjian Cai Shuqi Chen Shandong Provincial Engineering and Technical Center of Light Manipulations Collaborative Innovation Center of Light Manipulation and ApplicationsShandong Provincial Key Laboratory of Optics and Photonic DeviceSchool of Physics and ElectronicsShandong Normal UniversityJinan 250014China. The Key Laboratory of Weak Light Nonlinear Photonics Ministry of EducationSchool of PhysicsSchool of Materials Science and EngineeringSmart Sensing Interdisciplinary Science CenterNankai UniversityTianjin 300071China. School of Physical Science and Technology Soochow UniversitySuzhou 215006China. Laser Physics Centre Research School of PhysicsAustralian National UniversityCanberraACT 2601Australia. The Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanShanxi 030006China

Optical information transmission is vital in modern optics and photonics due to its concurrent and multi-dimensional nature,leading to tremendous applications such as optical microscopy,holography,and optical *** optical information transmission technologies suffer from bulky optical setup and information loss/crosstalk when meeting scatterers or obstacles in the light ***,we theoretically propose and experimentally realize the simultaneous manipulation of the coherence lengths and coherence structures of the light beams with the disordered *** ultra-robust optical information transmission and self-reconstruction can be realized by the generated partially coherent beam with modulated coherence structure even 93%of light is recklessly obstructed during light transmission,which brings new light to robust optical information transmission with a single *** method provides a generic principle for the generalized coherence manipulation on the photonic platform and displays a variety of functionalities advancing capabilities in optical information transmission such as meta-holography and imaging in disordered and perturbative media.

关键词： optics coherent holography

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Cation-Dipole Interaction-Induced Coacervate Underwater Adhesives in Natural Seawater

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Chinese Journal of Polymer Science 2024年第7期42卷 984-991,I0009页

作者： Xu-Fei liu Chong-Rui Zhang hua-Wen peng Qiang Zhao Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China

Significant progress has been made in wet adhesives for low salinity water,but exploration of general ionic adhesives for natural seawater is less developed because the high salinity could weaken interfacial bonding and shields electrostatic interactions,resulting in adhesion ***,the design of adhesives for natural seawater represents challenges less ***,a cationic polyelectrolyte(PECHIA)containing imidazolacetonitrile unit was explored to prepare adhesives enabled by natural *** combining the ion shielding effect with the“cation-dipole”interactions between PECHIA chains,aqueous solution of the PECHIA underwent coacervation and self-crosslinking in natural seawater,allowing for underwater adhesion to various substrates in *** instantaneous lap-shear and tensile adhesion strengths are 47 and 119 kPa,respectively,while the cured adhesive shows~739 k Pa tensile adhesion in natural *** design of PECHIA enables wet adhesives viable for applications in the diversified scenarios of natural seawater.

关键词： Coacervate Underwater adhesives Seawater Cation-dipole interaction

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Effects of Exogenous Carbon Monoxide Releasing Molecules on the Development of Zebrafish Embryos and Larvae

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Biomedical and Environmental Sciences 2016年第6期29卷 453-456页

作者： SONG Jing E SI Jing ZHOU Rong liu hua peng WANG Zhen Guo GAN Lu GUI Fang liu Bin ZHANG Hong School/Hospital of Stomatology Lanzhou University Lanzhou 730000 Gansu China Department of Medical Physics Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 Gansu China Key Laboratory of Heavy Ion Radiation Biology and Medicine Chinese Academy of Sciences Lanzhou 730000 Gansu China Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province Lanzhou 730000 Gansu China Gansu Medicinal College Pingliang 744000 Gansu China Lanzhou veolia Water(Group) Co. Ltd Lanzhou 730000 Gansu China

The use of exogenous carbon monoxide releasing molecules（CORMs）provides promise for clinical application;however,the hazard potential of CORMs in vivo remains poorly *** developmental toxicity of CORM-3 was investigated by exposure to concentrations ranging from 6.25 to400μmol/L during 4-144 h post *** endpoints of mortality,spontaneous movement,heart rate,hatching rate,malformation,body length,and larval behavior were measured.

关键词： CO Effects of Exogenous Carbon Monoxide Releasing Molecules on the Development of Zebrafish Embryos and Larvae

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The Q-index and Connectivity of Graphs

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Journal of the Operations Research Society of China 2024年第2期12卷 505-519页

作者： peng-Li Zhang Li-hua Feng Wei-Jun liu Xiao-Dong Zhang School of Mathematical Sciences MOE-LSCSHL-MACShanghai Jiao Tong UniversityShanghai 200240China School of Mathematics and Statistics Central South UniversityChangsha 410083HunanChina

A connected graph G is said to be k-connected if it has more than k vertices and remains connected whenever fewer than k vertices are *** this paper,for a connected graph G with sufficiently large order,we present a tight sufficient condition for G with fixed minimum degree to be k-connected based on the *** result can be viewed as a spectral counterpart of the corresponding Dirac-type condition.

关键词： Q-index Minimum degree k-connected

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Experimental investigation on using CO_(2)/H_(2)O emulsion with high water cut in enhanced oil recovery

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Petroleum Science 2024年第2期21卷 974-986页

作者： Xi-Dao Wu peng Xiao Bei liu Guang-Jin Chen Jian-hua Pang State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Ocean Intelligence Technology Center Shenzhen Institute of Guangdong Ocean UniversityShenzhen518120GuangdongChina

CO_(2) emulsions used for EOR have received a lot of interest because of its good performance on CO_(2)mobility ***,most of them have been focusing on the high quality CO_(2) emulsion(high CO_(2) fraction),while CO_(2) emulsion with high water cut has been rarely *** this paper,we carried out a comprehensive experimental study of using high water cut CO_(2)/H_(2)O emulsion for enhancing oil ***,a nonionic surfactant,alkyl glycosides(APG),was selected to stabilize CO_(2)/H_(2)O emulsion,and the corresponding morphology and stability were evaluated with a transparent PVT ***,plugging capacity and apparent viscosity of CO_(2)/H_(2)O emulsion were measured systematically by a sand pack displacement apparatus connected with a 1.95-m long capillary ***,a high water cut(40 vol%) CO_(2)/H_(2)O emulsion was selected for flooding experiments in a long sand pack and a core sample,and the oil recovery,the rate of oil recovery,and the pressure gradients were *** results indicated that APG had a good performance on emulsifying and stabilizing CO_(2) *** inversion from H_(2)O/CO_(2) emulsion to CO_(2)/H_(2)O emulsion with the increase in water cut was ***_(2)/H_(2)O emulsions with lower water cuts presented higher apparent viscosity,while the optimal plugging capacity of CO_(2)/H_(2)O emulsion occurred at a certain water ***,the displacement using CO_(2)/H_(2)O emulsion provided 18.98% and 13.36% additional oil recovery than that using pure CO_(2) in long sand pack and core tests,*** work may provide guidelines for EOR using CO_(2) emulsions with high water cut.

关键词： CO_(2)/H_(2)O emulsion High water cut CO_(2) mobility control Enhanced oil recovery

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基于磁共振多模态成像定量参数鉴别诊断乳腺良恶性病变及与临床病理特征的关系探究

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中国CT和MRI杂志 2024年第3期22卷 93-96页

作者：徐静马光辉刘彭华王勇刚田志勇邯郸市第一医院CT室河北邯郸056002

目的分析磁共振多模态成像定量参数鉴别诊断乳腺良恶性病变的价值,并探究乳腺病变性质与临床病理特征的关系。方法纳入2015年1月-2022年12月医院120例乳腺占位性病变患者,所有患者入院时均接受磁共振多模态成像检查,包括弥散加权(DWI... 详细信息

目的分析磁共振多模态成像定量参数鉴别诊断乳腺良恶性病变的价值,并探究乳腺病变性质与临床病理特征的关系。方法纳入2015年1月-2022年12月医院120例乳腺占位性病变患者,所有患者入院时均接受磁共振多模态成像检查,包括弥散加权(DWI)、磁共振波谱成像(MRS)与磁共振动态增强(DCE-MRI),以病理检查结果为“金标准”,分析该检查方式鉴别诊断乳腺良恶性病变的价值。依据乳腺占位性病变性质将患者分为恶性组与良性组,对比两组临床病理特征,分析乳腺病变性质与临床病理特征的关系。结果 120例乳腺占位性病变患者经病理检查结果显示,乳腺癌98例(81.67%),乳腺良性病变22例(18.33%);以病理检查结果为“金标准”,DCE-MRI及联合诊断乳腺病变性质的灵敏度、准确度高于DWI(P1,P<0.05)。结论磁共振多模态成像定量参数对乳腺良恶性病变具有一定鉴别诊断价值,乳腺癌的发生与肿瘤形态不规则、边缘毛刺/不规则、强化不均匀等临床病理特征密切相关。

关键词：乳腺良占位性病变磁共振多模态成像鉴别诊断临床病理特征

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Icariin ameliorates viral myocarditis by inhibiting TLR4-mediated ferroptosis

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Asian Pacific Journal of Tropical Biomedicine 2024年第3期14卷 106-114,I0002-I0005页

作者： Wei Luo Yi Lu Jun-hua Deng peng liu Yan huang Wan-Xi liu Chun-Li huang Laboratory of the Atherosclerosis and Ischemic Cardiovascular Diseases Department of CardiologyAffiliated Hospital of Youjiang Medical University for NationalitiesYoujiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Critical Care Medicine Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Respiratory and Critical Care Medicine Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Postgraduate School of Youjiang Medical University for Nationalities BaiseGuangxi 533000China Department of Neonatology Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxi 533000China Department of Nephrology People’s Hospital of PubeiQinzhouGuangxi 535300China Urban Community Health Service Center of Youjiang District BaiseGuangxi 533000China

Objective:To explore the mechanism by which icariin alleviates viral ***:CVB3-induced cardiomyocytes were used as an in vitro model of viral myocarditis to assess the effects of icariin treatment on cell viability,inflammation,and ***,the effects of icariin on ferroptosis and TLR4 signaling were *** AC16 cells were transfected with TLR4 overexpression plasmids,the role of TLR4 in mediating the regulatory effect of icariin in viral myocarditis was ***:Icariin significantly elevated cell viability and reduced inflammatory factors TNF-α,IL-1β,IL-6,and *** cytometry revealed that icariin decreased apoptosis rate,and the protein expression of Bax and cleaved caspase 3 and 9 in CVB3-induced ***,it suppressed ferroptosis including lipid peroxidation and ferrous ion,as well as the TLR4 ***,TLR4 overexpression abrogated the modulatory effects of ***:Icariin mitigates CVB3-induced myocardial injury by inhibiting TLR4-mediated *** animal study is needed to verify its efficacy.

关键词： Viral myocarditis CVB3 TLR4 Ferroptosis Icariin

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Layer Hall effect induced by hidden Berry curvature in antiferromagnetic insulators

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National Science Review 2024年第2期11卷 15-23页

作者： Rui Chen Hai-peng Sun Mingqiang Gu Chun-Bo hua Qihang liu Hai-Zhou Lu X.C.Xie Shenzhen Institute for Quantum Science and Engineering and Department of Physics Southern University of Science and Technology(SUSTech) International Quantum Academy Institute for Theoretical Physics and Astrophysics University of Würzburg School of Electronic and Information Engineering Hubei University of Science and Technology Guangdong Provincial Key Laboratory of Computational Science and Material Design Southern University of Science and Technology Shenzhen Key Laboratory of Quantum Science and Engineering International Center for Quantum Materials School of PhysicsPeking University Collaborative Innovation Center of Quantum Matter CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences

The layer Hall effect describes electrons spontaneously deflected to opposite sides at different layers, which has been experimentally reported in the MnBi2Te4thin films under perpendicular electric fields. Here, we reveal a universal origin of the layer Hall effect in terms of the so-called hidden Berry curvature, as well as material design principles. Hence, it gives rise to zero Berry curvature in momentum space but non-zero layer-locked hidden Berry curvature in real space. We show that, compared to that of a trivial insulator, the layer Hall effect is significantly enhanced in antiferromagnetic topological insulators. Our universal picture provides a paradigm for revealing the hidden physics as a result of the interplay between the global and local symmetries, and can be generalized in various scenarios.

关键词： layerHall effect hidden Berry curvature antiferromagnetic insulator axion insulator, quantum transport

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