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Adhesion strength of tetrahydrofuran hydrates is dictated by substrate stiffness

Petroleum Science 2024年第1期21卷 667-673页

作者： Yan-Wen Lin Tong Li Yi Zhang Wei-Wei Yan Xiao-ming Chen Zhi-sen Zhang Jian-Yang Wu Department of Physics Research Institute for Biomimetics and Soft MatterJiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials ResearchXiamen UniversityXiamen361005FujianChina Key laboratory of marine materials and related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201ZhejiangChina Key laboratory of Icing and Anti/De-icing China Aerodynamics Research and Development CenterMianyang621000SichuanChina micro-and Nano-technology research Center State Key Laboratory for Manufacturing Systems EngineeringXi’an Jiaotong UniversityXi’an710049ShaanxiChina Electronic materials research lab Key Laboratory of the Ministry of EducationXi’an Jiaotong UniversityXi’an710049ShaanxiChina NTNU Nanomechanical lab Norwegian University of Science and Technology(NTNU)Trondheim7491Norway

Understanding the hydrate adhesion is important to tackling hydrate accretion in ***,the relationship between the Tetrahydrofuran(THF)hydrate adhesion strength(AS)and surface stiffness on elastic coatings is systemically examined by experimental shear force measurements and theoretical *** mechanical factor-elastic modulus of the coatings greatly dictates the hydrate AS,which is explained by the adhesion mechanics theory,beyond the usual factors such as wettability and structural ***,the hydrate AS increases with reducing the thickness of the elastic coatings,resulted from the decrease of the apparent surface elastic *** effect of critical thickness for the elastic materials with variable elastic modulus on the hydrate AS is also *** study provides deep perspectives on the regulation of the hydrate AS by the elastic modulus of elastic materials,which is of significance to design anti-hydrate surfaces for mitigation of hydrate accretion in petro-pipelines.

关键词： Hydrate Adhesion strength Elastic modulus Coatings

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{1012}twin–twin intersection-induced lattice rotation and dynamic recrystallization in mg–6Al–3Sn–2Zn alloy

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Journal of magnesium and Alloys 2024年第4期12卷 1529-1539页

作者： Bin-Jiang Lv sen Wang Fu-Hao Gao Ning Cui Yi-Nan Li Tie-Wei Xu Feng Guo School of mechanical and Automotive Engineering Qingdao University of Technology266520China Key lab of industrial Fluid Energy Conservation and Pollution Control Qingdao University of Technology266520China

This study investigated the formation mechanism of new grains due to twin–twin intersections in a coarse-grained mg–6Al–3Sn–2Zn alloy during different strain rates of an isothermal *** results of electron backscattered diffraction investigations showed that the activated twins were primarily{1012}tension twins,and 60°boundaries formed due to twin–twin intersections under different strain *** twin variants with 60°boundaries transformed into new grains through lattice rotations at a low strain rate(0.01 s^(−1)).At a high strain rate(10 s^(−1)),the regions surrounded by subgrain boundaries through high-density dislocation arrangement and the 60°boundaries transformed into new grains via dynamic recrystallization.

关键词： mg alloy Twin-twin intersection lattice rotation Dynamic recrystallization

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Ginsenoside rg3 Promotes the Survival and migration of Trophoblast Cells in a rat model of Gestational Hypertension by regulating mir-100a/Insulin Growth Factor-2 Axis

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World Journal of Traditional Chinese medicine 2024年第1期10卷 65-74页

作者： Xiu-mei Fan Li Yang Gang Zhao sen-Ye Huo Yan Gao Department of Obstetrics Xingtai Third HospitalXingtaiChina Department of Obstetrics Xingtai Maternal and Child Health Care HospitalXingtaiChina

Objective:Preeclampsia(PE)is a common complication during ***-100a is expressed in the placenta and regulates the survival and development of placental *** growth factor-2(IGF-2)may serve as its downstream *** study investigated the protective mechanisms of ginsenoside rg3 against PE in rat *** and methods:LPS-induced rat PE models were suitable for intravenous administration of the highly expressed mir-100a ginsenoside rg3 lentiviral *** trophoblasts were cultured in vitro for JEG-3,and PE cell models were *** vivo effects on tumor growth and apoptosis were *** rg3 was treated with different concentrations of shrNA,mir-100a analogs,inhibitors,or *** and the expression of autophagy-related proteins were *** activity and migration were determined using Cell Counting Kit-8 and Transwell *** drugs strongly inhibited trophoblasts under normal conditions with some synergy between ***-luciferase return assay confirmed the binding affinity of mir-100a for ***:In response to rg3,autophagy and the expression of autophagy-related proteins LC3-I/II,Beclin1,and SQSTm1 were reduced in PE rat placental ***3 inhibited autophagy in JEG-3 cells and promoted JEG-3 survival and migration in a concentration-dependent ***-100a upregulated PE *** results suggested that autophagy was a vital signaling ***3 intervention inhibited mir-100a expression and mir-100a downregulated IGF-2 expression in placental tissues and promoted autophagy,thereby inhibiting JEG-3cell survival and *** rats,rg3 inhibited PE development by regulating the activity of the mir-100a-IGF-2 signaling ***:Ginsenoside rg3 positively regulates the mir-100a-IGF-2 axis and protects PE rats by inhibiting trophoblastic autophagy and promoting trophoblastic cell survival and migration.

关键词： Ginsenoside rg3 inflammatory response mir-100a/insulin growth factor-2 axis preeclampsia pregnancy-induced hypertension

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Optimizing magnetoelastic properties by machine learning and high-throughput micromagnetic simulation

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rare metals 2024年第5期43卷 2251-2262页

作者： Jian-Hu Gong Zheng-ming Zhang Cheng-Liang Zhang Peng-Qiang Hu Chao Zhou Dun-Hui Wang sen Yang Division of microelectronic materials and Devices Hangzhou Dianzi UniversityHangzhou 310018China School of Physics MOEKey Laboratory forNonequilibrium Synthesis and Modulation of Condensed Matter and State Key Laboratory for Mechanical Behavior of MaterialsXi'an Jiaotong UniversityXi'an 710049China National laboratory of Solid State microstructures Nanjing UniversityNanjing210093China

magnetoelastic couplings in giant magnetostrictive materials(Gmms)attract significant interests due to their extensive applications in the fields of spintronics and energy harvesting *** the role of the selection of materials and the response to external fields is essential for attaining desired functionality of a ***,machine learning(mL)models are conducted to predict saturation magnetostrictions(λ_(s))in rFe_(2)-type(r=rare earth)Gmms with different *** to mL-predicted composition–λsrelations,it is discovered that the values ofλshigher than1100×10^(-6)are almost situated in the composition space surrounded by 0.26≤x≤0.60 and 1.90≤y≤2.00 for the ternary compounds of Tb_(x)Dy_(1-x)Fe_(y).Assisted by mL predictions,the compositions are further narrowed down to the space surrounded by 0.26≤x≤0.32 and 1.92≤y≤1.97 for the excellent piezomagnetic(Pm)performance in the Tb_(x)Dy_(1-x)Fe_(y)based Pm device through our developed high-throughput(HTP)micromagnetic simulation(mmS)***,high sensitivities up to10.22-13.61 m T·mPa^(-1)are observed in the optimized range within which the available experimental data fall *** work not only provides valuable insights toward understanding the mechanism of magnetoelastic couplings,but also paves the way for designing and optimizing highperformance magnetostrictive materials and Pm sensing devices.

关键词： magnetostriction Piezomagnetic effect machine learning micromagnetic simulation

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Simple chemical synthesis and isotropic negative thermal expansion in mHfF_(6)(m=Ca,mn,Fe,and Co)

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Nano research 2024年第3期17卷 2195-2203页

作者： Yongqiang Qiao sen Zhang Peixian Zhang Juan Guo Andrea Sanson Xi Zhen Kaiyue Zhao Qilong Gao Jun Chen Key laboratory of materials Physics of ministry of Education and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China Department of Physics and Astronomy University of PadovaPadova I-35131Italy Beijing Advanced Innovation Center for materials Genome Engineering Department of Physical ChemistryUniversity of Science and Technology BeijingBeijing 100083China

The rapid progress of modern technologies has accelerated the prominence of thermal expansion mismatch between materials,and tunable thermal expansion materials will be a powerful safeguard against this ***,isotropic mHfF_(6)(m=Ca,mn,Fe,and Co)compounds with tunable thermal expansion have been produced via a low-cost synthetic method and *** utilizing temperature dependent X-ray diffraction(XrD)and raman spectroscopy,combined with first principles calculations,it was revealed that the transverse thermal vibrations of the F atoms are dominated by low-frequency phonons with negative Grüneisen parameters and are therefore the origin of the negative thermal expansion(NTE).Very interestingly,with the increase of the m atomic number,the metal…F atomic linkages become stiffer,reducing the number of vibrational modes with negative Grüneisen parameters,so that the strong NTE can be gradually adjusted to moderate NTE and to near zero thermal *** present study achieves the tunable thermal expansion in a new compound family and shed light on the internal mechanism from the perspective of lattice vibrational dynamics.

关键词： negative thermal expansion fluorides chemical synthesis nanosheet structure first principles calculations

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mechanism Exploration of Euphorbia fischeriana Steud. for Liver Cancer Based on Aspartic Acid Identification in metabolomics

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Chinese Journal of Integrative medicine 2024年第6期30卷 507-514页

作者： ZHAO Jing TIAN Xin-chen ZHANG Jia-qi HUANG Chen SUN Yan QIAO sen JIANG Shu-long Clinical medical laboratory Center Jining First People’s HospitalJiningShandong Province272000China Cheeloo College of medicine Shandong UniversityJinan250000China

Objective:To investigate the anti-liver cancer effects and aspartic acid(Asp)-related action mechanism of Euphorbia fischeriana Steud.(LD).methods:The mice model of liver cancer was established by injection of H22 *** 5 days,mice were randomly divided into model group,sorafenib group(20 mg/kg),LD high-dose(LDH,1.36 g/kg) group,LD medium-dose(LDm,0.68 g/kg) group,and LD low-dose(LDL,0.34 g/kg)group,10 mice each *** were intragastrically administered to the mice once daily for 10 days,*** weight,tumor size and tumor weight were *** index was *** changes of liver cancer tissues were evaluated by hematoxylin and eosin staining and TUNEL *** chromatography-mass spectrometer was used to analyze different metabolites between the model and LDH ***:After LD treatment,tumor weight,tumor size and hepatic index were reduced compared with the model *** and karyorrhexis of tumor cells were ***,61 differential metabolites(18 up-regulated,43 down-regulated) were affirmed and 20 pathways of KEGG(Pre *** addition,Bel-7402,HepG2 and H22 cell viabilities were significantly increased after adding Asp into the *** then,the cell proliferation effect induced by Asp was ameliorated by ***:The anti-liver cancer efficacy of LD extract was validated in H22 mice model,and inhibition of Asp level might be the underlying mechanism.

关键词： liver cancer Euphorbia fischeriana Steud. aspartic acid metabolomics

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Hydroxyapatite composites with carbon allotropes:Preparation,properties,and applications

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Particuology 2024年第5期88卷 239-265页

作者： Boris I.Kharisov Oxana V.Kharissova Lucy T.González Yolanda Peña méndez Igor E.Uflyand Idalia Gómez de la Fuente Universidad Autónoma de Nuevo León Ave.UniversidadCiudad UniversitariaSan Nicolás de los GarzaNuevo León 66455Mexico Tecnologico de monterrey Escuela de Ingeniería y CienciasMonterreyNuevo Leon 64890Mexico Department of Chemistry Southern Federal UniversityRostov-on-DonRussia

Hydroxyapatite(HA)and its composites with inorganic additives,dopants,and polymers is a rapidly developing branch in the materials *** particular,carbon allotropes are widely used in these composites being widely applied for medical *** a gap of insufficient generalization of recent achievements in the field of the HA/Carbon composites,in this review we present the state of the art of the field of HA composites and hybrids with classic carbon allotropes and *** composites are known for carbon nanotubes,nanofibers,graphene and its oxidized forms,as well as,in a lesser grade,for graphite,fullerenes,nanodiamonds,carbon nanofoams,*** composites can be fabricated by a variety of classic and less-common methods,such as co-precipitation(with or without ultrasonic treatment),CVD,hot isostatic pressing,hydrothermal,spark plasma sintering,biomimetic mineralization,thermal and plasma spray,electrochemical and electrophoretic deposition,self-assembling,3D printing,electrospinning,and lyophilisation,among *** of various synthesis techniques can be also carried out for composite *** or synthetic HA can be used as it is for further interaction with carbon allotropes or it can be first prepared and then reacted with carbon counterpart;similarly,carbon allotropes can be introduced into the interaction with HA directly or they can be first synthesized,in particular from *** biocompatible composites can be produced in the form of coatings,powders,and scaffolds and can additionally contain quantitative amounts of third phases,frequently natural or synthetic *** these composites,especially with O-containing functionalizing groups,HA disadvantages could be considerably decreased with simultaneous enhancement of mechanical properties,becoming similar to human bone,chemical stability and biocompatibility,as well as possessing antibacterial ***→G reduction and higher HA decoration were obs

关键词： Hydroxyapatite Carbon nanotubes Graphene Quantum dots Fullerenes Nanodiamonds

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Design of a large-scale model for wind tunnel test of a multiadaptive flap concept

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Chinese Journal of Aeronautics 2024年第2期37卷 58-80页

作者： mürüvvet Sinem SICIm DEmIrCI rosario PECOrA metin Orhan KAYA Aeronautical Engineering Department Istanbul Technical UniversityIstanbulTurkey Industrial Engineering Department University of Naples Federico IINapoliItaly

The design and application of morphing systems are ongoing issues compelling the aviation *** Clean Sky-program represents the most significant aeronautical research ever launched in Europe on advanced technologies for greening next-generation *** primary purpose of the program is to develop new concepts aimed at decreasing the effects of aviation on the environment,increasing reliability,and promoting eco-friendly *** ambitions are pursued through research on enabling technologies fostering noise and gas emissions reduction,mainly by improving aircraft aerodynamic *** the Clean Sky framework,a multimodal morphing flap device was designed based on tight industrial requirements and tailored for large civil aircraft *** flap is deployed in one unique setting,and its cross section is morphed differently in take-off and landing to get the necessary extra lift for the specific flight ***,during the cruise,the tip of the flap is deflected for load control and induced drag *** manufacturing the first flap prototype,a high-speed(ma=0.3),large-scale test campaign(geometric scale factor 1:3)was deemed necessary to validate the performance improvements brought by this novel system at the aircraft *** the other hand,the geometrical scaling of the flap prototype was considered impracticable due to the unscalability of the embedded mechanisms and actuators for shape ***,a new architecture was conceived for the flap model to comply with the scaled dimensions requirements,withstand the relevant loads expected during the wind tunnel tests and emulate the shape transition capabilities of the true-scale *** strategies were developed to effectively morph the model during wind tunnel tests while ensuring the robustness of each morphed configuration and maintaining adequate stiffness levels to prevent undesirable deviations from the intended aerodynamic ***,

关键词： morphing structures Smart aircraft morphing flap Adaptive systems Finger-like ribs Wind tunnel tests large-scale morphing archi-tectures Variable camber airfoil

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Au-Fe_(3)O_(4) dumbbell-like nanoparticles based lateral flow immunoassay for colorimetric and photothermal dual-mode detection of SArS-CoV-2 spike protein

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Chinese Chemical Letters 2024年第6期35卷 536-540页

作者： Gengchen Guo Tianyu Zhao ruichang Sun mingzhe Song Hongyu Liu sen Wang Jingwen Li Jingbin Zeng College of Chemistry and Chemical Engineering and State Key laboratory of heavy oil processing China University of Petroleum(East China)Qingdao 266580China Huangdao Customs of the People’s republic of China Qingdao 266580China

lateral flow immunoassay(LFIA)has become popular in laboratories,at-home testing,and medical diagnostics due to its minimal cost and ***,conventional test strips based on colloidal gold can only obtain qualitative or semi-quantitative results with low *** this work,AuFe_(3)O_(4) dumbbell-like nanoparticles were synthesized and used as the LFIA labelling marker for highly sensitive colorimetric-photothermal dual-mode detection of SArS-CoV-2 spike(S)*** unique dumbbell structure of Au-Fe_(3)O_(4) NPs makes it possible to combine the best features of both Au NPs and Fe_(3)O_(4) *** increased surface area of these NPs enhances their LSPr effect and photothermal effect,which achieves signal amplification to increase *** Au-Fe_(3)O_(4) NPs modified with S protein antibody could identify S protein in samples,which were recognized and accumulated on T-line by another antibody,generating color band for qualitative colorimetric *** T-line was irradiated by laser to obtain temperature change for quantitative detection of *** optimized conditions,the detection limit was 1.22 pg/m L,three orders of magnitude more sensitive than colorimetric ***,the approach was performed on SArS-CoV-2 pseudovirus samples and outperformed traditional colloidal gold *** LFIA platform exhibits significant promise for practical implementation,as it can satisfy the need for low-cost,high-sensitivity,and home-based quantitative detection for respiratory infectious diseases.

关键词： Au-Fe_(3)O_(4) dumbbell-like nanoparticles Photothermal effect LFIA S protein

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Three‐dimensional(3D)‐printed mXene high‐voltage aqueous micro‐supercapacitors with ultrahigh areal energy density and low‐temperature tolerance

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Carbon Energy 2024年第8期6卷 36-48页

作者： Yuanyuan Zhu Qingxiao Zhang Jiaxin ma Pratteek Das Liangzhu Zhang Hanqing Liu sen Wang Hui Li Zhong‐Shuai Wu State Key laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina Key laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes Suzhou UniversitySuzhouChina Shanghai Key laboratory of rare Earth Functional materials and Education ministry Key laboratory of resource Chemistry Shanghai Normal UniversityShanghaiChina University of Chinese Academy of Sciences BeijingChina Dalian National laboratory for Clean Energy Chinese Academy of SciencesDalianChina

The rapid advancement in the miniaturization,integration,and intelligence of electronic devices has escalated the demand for customizable microsupercapacitors(mSCs)with high energy ***,efficient microfabrication of safe and high‐energy mXene mSCs for integrating microelectronics remains a significant challenge due to the low voltage window in aqueous electrolytes(typically≤0.6 V)and limited areal mass loading of mXene ***,we tackle these challenges by developing a highconcentration(18mol kg^(−1))“water‐in‐LiBr”(WiB)gel electrolyte for mXene symmetric mSCs(m‐SmSCs),demonstrating a record high voltage window of 1.8 ***,additive‐free aqueous mXene ink with excellent rheological behavior is developed for three‐dimensional(3D)printing customizable all‐mXene microelectrodes on various *** the synergy of a highvoltage WiB gel electrolyte and 3D‐printed microelectrodes,quasi‐solid‐state mSmSCs operating stably at 1.8 V are constructed,and achieve an ultrahigh areal energy density of 1772μWhcm^(−2)and excellent low‐temperature tolerance,with a long‐term operation at−40℃.Finally,by extending the 3D printing protocol,m‐SmSCs are integrated with humidity sensors on a single planar substrate,demonstrating their reliability in miniaturized integrated microsystems.

关键词： 3D printing aqueous electrolyte high voltage micro‐supercapacitors mXene

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