The interaction mechanism between the combustion products of pulverized coal injected and coke in the raceway of blast furnace was studied through thermodynamic calculation and experiments.The results indicated that a...The interaction mechanism between the combustion products of pulverized coal injected and coke in the raceway of blast furnace was studied through thermodynamic calculation and experiments.The results indicated that additives significantly affected the melting property of coal ash in high temperature zone.Although the unburnt char,raw coal ash,and catalyzed coal ash failed to wet the coke surface,the wettability of the catalyzed coal ash on the coke was greater than that of the raw coal ash.Since the unburnt char had weak reaction with the coke surface,it showed little influence on the surface morphology of the coke.The interaction between the raw coal ash and the coke gave rise to the increase in the pore size on the coke surface.However,the raw coal ash only affected the coke surface and the entrances of the pores owing to its poor fluidity.After being melted,the catalyzed coal ash was expected to immerge into the inside part of the coke and then react with the coke,resulting in an expansion and increase of coke cavities.The raw coal ash and the unburnt char reduced the coke reactivity,while the catalyzed coal ash improved the coke reactivity.Thereinto,the coal ash containing Fe2O3 exhibited a larger influence on the reactivity than that containing CaO.展开更多
This review focuses on the occurrence and interactions of engineered nanoparticles(ENPs)and brominated flame retardants(BFRs)such as polybrominated diphenyl ethers(PBDEs)in water systems and the generation of highly c...This review focuses on the occurrence and interactions of engineered nanoparticles(ENPs)and brominated flame retardants(BFRs)such as polybrominated diphenyl ethers(PBDEs)in water systems and the generation of highly complex compounds in the environment.The release of ENPs and BFRs(e.g.PBDEs)to aquatic environments during their usage and disposal are summarised together with their key interaction mechanisms.The major interaction mechanisms including electrostatic,van derWaals,hydrophobic,molecular bridging and steric,hydrogen andπ-bonding,cation bridging and ligand exchange were identified.The presence of ENPs could influence the fate and behaviour of PBDEs through the interactions as well as induced reactions under certain conditions which increases the formation of complex compounds.The interaction leads to alteration of behaviour for PBDEs and their toxic effects to ecological receptors.The intermingled compound(ENPs-BFRs)would show different behaviour from the parental ENPs or BFRs,which are currently lack of investigation.This review provided insights on the interactions of ENPs and BFRs in artificial,environmental water systems and wastewater treatment plants(WWTPs),which are important for a comprehensive risk assessment.展开更多
A series of novel chalcone derivatives that contain the 1,1-dichloropropene moiety was designed and synthesized. Bioactivity assays showed that most of the target compounds exhibited moderate to good antiviral activit...A series of novel chalcone derivatives that contain the 1,1-dichloropropene moiety was designed and synthesized. Bioactivity assays showed that most of the target compounds exhibited moderate to good antiviral activity against tobacco mosaic virus（TMV） at 500 mg/m L. Among the target compounds,compound 7h showed the highest in vivo inactivation activity against TMV with the EC50 and EC90value of 45.6 and 327.5 mg/m L, respectively, which was similar to that of Ningnanmycin（46.9 and 329.4 mg/m L）and superior to that of Ribavirin（145.1 and 793.1 mg/m L）. Meanwhile, the microscale thermophoresis and fluorescence spectroscopy experiments showed that the compound 7h had a strong interaction with the tobacco mosaic virus coat protein.展开更多
Human immunodeficiency virus(HIV) and tuberculosis(TB) coinfection is a serious public health problem. HIV and TB promote each other, accelerating development of HIV to acquired immunodeficiency syndrome(AIDS) and hei...Human immunodeficiency virus(HIV) and tuberculosis(TB) coinfection is a serious public health problem. HIV and TB promote each other, accelerating development of HIV to acquired immunodeficiency syndrome(AIDS) and heightening TB mortality. Determining interaction mechanism between HIV and Mycobacterium tuberculosis can lead to development of effective treatments. This study summarizes prevalence status of AIDS and TB coinfection and research advances concerning their interaction mechanism.展开更多
Carboxylmethyl cellulose(CMC) has become a commercial organic binder in agglomeration of iron ore concentrates. The relative molecular mass and degree of substitution(DS) of CMC have a large impact on its binding perf...Carboxylmethyl cellulose(CMC) has become a commercial organic binder in agglomeration of iron ore concentrates. The relative molecular mass and degree of substitution(DS) of CMC have a large impact on its binding performance. The interaction mechanism between CMC and iron ore particles was analyzed through Zeta potential measurements, adsorption measurements and infrared spectra. The results show that the interaction is chemical adsorption-oriented and the CMC's adsorption performance is related to the properties of CMC as well as the type of iron oxides. CMC has a greater affinity to Fe2O3 than Fe3O4, and CMC with higher relative molecular mass shows a higher adsorption isotherm. Pelletization of practical iron ore concentrates added with CMC further illustrates that CMC with higher relative molecular mass or DS exhibits a better binding performance, which is consistent with the results of adsorption tests.展开更多
To investigate the stability and interaction mechanism of the slope-pile-footing system under surcharge effects,the finite difference method(FDM)was adopted to analyze the response laws of the stability of the reinfor...To investigate the stability and interaction mechanism of the slope-pile-footing system under surcharge effects,the finite difference method(FDM)was adopted to analyze the response laws of the stability of the reinforced slope,evolution of the critical slip surface,stress characteristic of retaining structures,deformation and failure modes of the slope foundation and building footing under surcharge parameters,including the surcharge intensity,the surcharge position,and the surcharge width.The results show that surcharge parameters significantly affect the stability and the deformation characteristics of the slope-pile-footing system.Specifically speaking,with the increasing surcharge intensity and the decreasing surcharge position and width,the deformation and failure mode of the system will gradually evolve in a direction that is harmful to its stability.The interaction mechanism of the slope-pile-footing system is further clarified as the load transfer of the building footing,the generation of the additional stress in the slope foundation,and the adjustment of pile bending moment due to the stress redistribution.Correspondingly,the safety of anti-slide piles will determine the stability of the slope foundation and building footing.These findings are expected to provide guidance for the comprehensive development and utilization of filled slopes after reinforcement.展开更多
A systematic analysis has been carried out to investigate the fields of application and interaction mechanism of polymeric carbohydrate, i.e. polysaccharides (including starch, dextrin, cellulose and cellulosic deriva...A systematic analysis has been carried out to investigate the fields of application and interaction mechanism of polymeric carbohydrate, i.e. polysaccharides (including starch, dextrin, cellulose and cellulosic derivatives) on various oxides and salt-type minerals in the article, interaction mechanisms of electrostatic, of hydrogen bonding, and of chemical interaction between polymeric carbohydrate and these minerals are put forward.展开更多
Semi-metal friction material was applied widely in brake process of traffic and dynamical system. The friction materials with rare earth additive were manufactured by heating press molding process. The effects of diff...Semi-metal friction material was applied widely in brake process of traffic and dynamical system. The friction materials with rare earth additive were manufactured by heating press molding process. The effects of different reinforcing fibers and adhesives on the properties of the materials were studied by changing the formula. The results showed that the friction materials with YSM resin adhesive and hybrid fibers (Kevlar pulp and steel fiber) had higher and more stable friction coefficient and lower wear rate. Semi-metal friction materials with rare earths formed iron-rich surface layer in the worn surface, and the mechanisms of wear had obvious differences at typical temperature ranges.展开更多
ESR measurements using spin trapping technique were carried out for β-carotene-halobenzene system under UV light irradiation.The ESR spectra observed in the presence and in the absence of β-carotene are markedly dif...ESR measurements using spin trapping technique were carried out for β-carotene-halobenzene system under UV light irradiation.The ESR spectra observed in the presence and in the absence of β-carotene are markedly different.The possible scheme of β-carotene interacting with halogen atom was proposed.展开更多
The electronic structure and bonding nature of adsorbing bonding complexes which consist of Amphoteric Collector-I and Mg^(2+), Ca^(2+), MgPO_4^-, CaPO_^-4, CaCO_3, as well aa MgCO_3, are studied using quantum chemist...The electronic structure and bonding nature of adsorbing bonding complexes which consist of Amphoteric Collector-I and Mg^(2+), Ca^(2+), MgPO_4^-, CaPO_^-4, CaCO_3, as well aa MgCO_3, are studied using quantum chemistry CNDO/2, It is predicted that magnesium salts are more liable to form adsorbing chelates with Amphoteric Collector-I than calcium salts, and all results coincide with that obtained in flotation.展开更多
In the actual complex environment,the recognition accuracy of crop leaf disease is often not high.Inspired by the brain parallel interaction mechanism,a two-stream parallel interactive convolutional neural network(TSP...In the actual complex environment,the recognition accuracy of crop leaf disease is often not high.Inspired by the brain parallel interaction mechanism,a two-stream parallel interactive convolutional neural network(TSPI-CNN)is proposed to improve the recognition accuracy.TSPI-CNN includes a two-stream parallel network(TSP-Net)and a parallel interactive network(PI-Net).TSP-Net simulates the ventral and dorsal stream.PI-Net simulates the interaction between two pathways in the process of human brain visual information transmission.A large number of experiments shows that the proposed TSPI-CNN performs well on MK-D2,PlantVillage,Apple-3 leaf,and Cassava leaf datasets.Furthermore,the effect of numbers of interactions on the recognition performance of TSPI-CNN is discussed.The experimental results show that as the number of interactions increases,the recognition accuracy of the network also increases.Finally,the network is visualized to show the working mechanism of the network and provide enlightenment for future research.展开更多
As the two most principal active substances in the corn silk,polysaccharides and flavonoids,the mechanism of interaction between them has been a topic of intense research.This study provides an in-depth investigation ...As the two most principal active substances in the corn silk,polysaccharides and flavonoids,the mechanism of interaction between them has been a topic of intense research.This study provides an in-depth investigation of the interaction mechanism between corn silk glycans and luteoloside(LUT)and the synergistic role that result from this interaction.The interaction mechanism was evaluated by isothermal titration calorimetry(ITC)and circular dichroism(CD),and the synergistic role was evaluated by the expression of glucose transporters(GLUT-1),insulin secretion and surface plasmon resonance(SPR).CD and ITC results indicated that the interaction between CSGs and LUT mainly driven by the Cotton effects,enthalpy and entropy-driven.This interaction precipitated the formation of complexes(CSGs/LUT complexes)between corn silk glycans(CSGs)with four different molecular weights and luteoloside(LUT).Furthermore,the CSGs and LUT play a synergistic role in glucose regulation through GLUT-1 expression and insulin secretion experiments,compared to single luteoloside group.展开更多
The mass communication model and interactive ritual chain theory,which serve as communication paradigms in the new media era,facilitate and enhance the synergy between the fields of social history of medicine and heal...The mass communication model and interactive ritual chain theory,which serve as communication paradigms in the new media era,facilitate and enhance the synergy between the fields of social history of medicine and health communication.This study employs a comprehensive framework based on the five elements of the mass communication model:information source,communication subject,communication object,message content,and post-communication feedback.Additionally,it incorporates the interactive ritual chain theory to examine the evolving dynamics and developmental trajectory of research in the social history of medicine during the new media era.Conclusively,this paper acknowledges the existing interaction gaps in the interaction between health communication and the social history of medicine research while outlining the challenges for fostering collaboration and proposing strategic optimizations for effective integration.展开更多
Graphene quantum dots(GQDs)have emerged as a transformative technology in biomedicine,driven by their exceptional optical,electronic,physicochemical,and biological properties.Their substantialπ-conjugated system,low ...Graphene quantum dots(GQDs)have emerged as a transformative technology in biomedicine,driven by their exceptional optical,electronic,physicochemical,and biological properties.Their substantialπ-conjugated system,low toxicity,biocompatibility,and tunable surface chemistries enable diverse functionalities,including adjustable fluorescence for biosensing and bioimaging,high drug loading capacity,effective cell membrane penetration for targeted delivery,andefficient radiation absorption for cancer therapeutics.Despite significant advancements,the interaction mechanisms of GQDs with biological systems remain inadequately explored,hindering their real-world clinical applications.This review summarizes the recent developments in GQD-based technologies,emphasizing the critical role of their interaction mechanisms in multifunctional applications,ranging from detection to therapy.It highlights innovative design strategies and the pivotal influence of GQD interactions with analytes,nucleic acids,and cellular components in enhancing the sensitivity and specificity of biosensors.Furthermore,it presents an in-depth analysis of their multifunctional roles and mechanisms in emerging applications like drug delivery,triple negative breast cancer treatment,and antimicrobial therapies.Particular attention is given to their synergistic role in combinational breast cancer therapies,where interactions with reactive oxygen species and photothermal agents amplify therapeutic efficacy.Finally,it addresses key challenges and proposes future research directions in this evolving field.展开更多
Verticillium wilt,caused by the infamous pathogen Verticillium dahliae,presents a primary constraint on cotton cul-tivation worldwide.The complexity of disease resistance in cotton and the largely unexplored interacti...Verticillium wilt,caused by the infamous pathogen Verticillium dahliae,presents a primary constraint on cotton cul-tivation worldwide.The complexity of disease resistance in cotton and the largely unexplored interaction dynamics between the cotton plant host and V.dahliae pathogen pose a crucial predicament for effectively managing cotton Verticillium wilt.Nevertheless,the most cost-effective approach to controlling this disease involves breeding and cul-tivating resistant cotton varieties,demanding a meticulous analysis of the mechanisms underlying cotton’s resistance to Verticillium wilt and the identification of pivotal genes.These aspects constitute focal points in disease-resistance breeding programs.In this review,we comprehensively discuss genetic inheritance associated with Verticillium wilt resistance in cotton,the advancements in molecular markers for disease resistance,the functional investiga-tion of resistance genes in cotton,the analysis of pathogenicity genes in V.dahliae,as well as the intricate interplay between cotton and this fungus.Moreover,we delve into the future prospects of cutting-edge research on cotton Verticillium wilt,aiming to proffer valuable insights for the effective management of this devastating fungus.展开更多
In order to explore the effect mechanism of solvent on the synthesis of the metal organic framework materials, the microscopic interaction between solvent and framework and the effects of N,N-dimethyl-formamide(DMF) o...In order to explore the effect mechanism of solvent on the synthesis of the metal organic framework materials, the microscopic interaction between solvent and framework and the effects of N,N-dimethyl-formamide(DMF) or N-methyl- 2-pyrrolidone(NMP) on solvothermal synthesis of [Zn4O(BDC)3]8 were investigated through a combined DFT and experimental study. XRD and SEM showed that the absorbability of NMP in the pore of [Zn4O(BDC)3]8 was weaker than that of DMF. The thermal decomposition temperature of [Zn4O(BDC)3]8 synthesized in DMF was higher than that in NMP according to TG and FT-IR. In addition, the nitrogen sorption isotherms indicated that NMP improved gas sorption property of [Zn4O(BDC)3]8. The COSMO optimized calculations indicated that the total energy of Zn4O(BDC)3 in NMP was higher than that in DMF, and compared with non-solvent system, the charge of zinc atoms decreased and the charge value was the smallest in NMP. Furthermore, the interaction of DMF, NMP or DEF in [Zn4O(BDC)3]8 crystal model was calculated by DFT method. The results suggested that NMP should be easier to be removed from pore of materials than DMF from the point of view of energy state. It can be concluded that NMP was a favorable solvent to synthesize [Zn4O(BDC)3]8 and the microscopic mechanism was that the binding force between Zn4O(BDC)3 and NMP molecule was weaker than DMF.展开更多
Dissolved organic matter（DOM） is ubiquitous in the environment and has high reactivity.Once engineered nanoparticles（ENPs） are released into natural systems, interactions of DOM with ENPs may significantly affect ...Dissolved organic matter（DOM） is ubiquitous in the environment and has high reactivity.Once engineered nanoparticles（ENPs） are released into natural systems, interactions of DOM with ENPs may significantly affect the fate and transport of ENPs, as well as the bioavailability and toxicity of ENPs to organisms. However, because of the complexity of DOM and the shortage of useful characterization methods, large knowledge gaps exist in our understanding of the interactions between DOM and ENPs. In this article, we systematically reviewed the interactions between DOM and ENPs, discussed the effects of DOM on the environmental behavior of ENPs, and described the changes in bioavailability and toxicity of ENPs caused by DOM. Critical evaluations of published references suggest further need for assessing and predicting the influences of DOM on the transport,transformation, bioavailability, and toxicity of ENPs in the environment.展开更多
This study demonstrated the interaction mechanism of collagen peptides(CPs)with 4-ethylphenol(4-EP),phenol,guaiacol,and 4-ethylguaiacol(4-EG)in the ethanol-water solution.The ultraviolet visible spectroscopy,zeta pote...This study demonstrated the interaction mechanism of collagen peptides(CPs)with 4-ethylphenol(4-EP),phenol,guaiacol,and 4-ethylguaiacol(4-EG)in the ethanol-water solution.The ultraviolet visible spectroscopy,zeta potential tests and hydrogen nuclear magnetic spectroscopy manifested that CPs interacted with the phenolic compounds.Meanwhile,Isothermal titration calorimetry determination indicated that the CPs was hydrogen bonded with 4-EP in 52%(v/v)ethanol-water solution,while the hydrophobic forces played a major role in the interaction of CPs with guaiacol and 4-EG,respectively.Moreover,hydrogen and hydrophobic bonds were involved in the interaction between CPs and phenol.Finally,Head Space-solid Phase Microextraction Gas Chromatography Mass Spectrometry analysis indicated that the content of phenolic compounds in model solution efficiently decreased with the presence of CPs.In the real liquor,it was found that the content of volatile compounds(including phenolic compounds)was obviously decreased after CPs added.展开更多
Objectives:Folic acid is a vitamin that is not highly soluble in water and is sensitive to the environment.Therefore,it is important to find suitable carriers.This study aimed to exemplify the interaction of folic aci...Objectives:Folic acid is a vitamin that is not highly soluble in water and is sensitive to the environment.Therefore,it is important to find suitable carriers.This study aimed to exemplify the interaction of folic acid with zein in alkaline aqueous solutions and shed light on how zein can be used as a carrier for folic acid.Materials and Methods:Zein and folic acid were separately dissolved in NaOH solutions with a PH of 11.5.Zein solution and folic acid solution were combined in specific ratios.Various methods including multi-spectroscopy,dynamic light scattering,and electron microscopy combining with molecular dynamics simulations were used to study the interaction mechanism between zein and folic acid in alkaline aqueous solutions.Results:Fluorescence spectroscopy showed that the quenching of zein by folic acid was mainly static,and the main driving force behind this interaction was van der Waals forces and hydrogen bonds.The formation of zein–folic acid complexes was confirmed by ultraviolet–visible spectroscopy,Fourier transform infrared spectroscopy,and circular dichroism spectroscopy.The results also showed that the structure of zein changed when it interacted with folic acid.Dynamic light scattering analysis revealed that the addition of folic acid caused proteins to aggregate.The aggregates of the complexes had an irregular shape and were large,as observed by scanning electron microscopy and transmission electron microscopy.Molecular simulation was used to further investigate the interaction mechanisms.According to these findings,the folic acid molecule interacted with zein in a shallow recess near the protein surface.The dominant forces at play in the zein–folic acid interaction were van der Waals forces and electrostatic forces,including hydrogen bonding.Conclusion:The zein alkali-soluble system is very suitable for folic acid delivery.展开更多
With a focus on the global tension between water resources and energy,the use of water-fertilizer integration technology in sprinkler irrigation has seen a rise.However,achieving efficient and effective fertilizer app...With a focus on the global tension between water resources and energy,the use of water-fertilizer integration technology in sprinkler irrigation has seen a rise.However,achieving efficient and effective fertilizer application remains a significant challenge.This study delves into the interaction mechanism between droplets and foliage during sprinkler fertigation,as well as discusses the application of water-saving and energy-saving irrigation methods in agriculture to address water crises and propel agricultural modernization.This study highlights two main aspects of this issue,that is,the droplet and foliage impact process,and the droplet and foliage dynamic interaction including foliar interception,leaf absorption,and leaf burning.Major challenges,such as inefficiencies in foliar interception and uncertainties in fertilization,have been identified,calling for further investigation into these areas.Moreover,perspectives to promote fertilization technology are proposed,including research on the dynamic impact of fertigation droplets on foliage,the development of universal models for leaf fertilizer retention,and the determination of critical fertigation concentrations under varying conditions to prevent leaf burning.This comprehensive review aims to provide a theoretical basis for establishing an integrated fertigation system for sprinkler irrigation and foster innovation in water-fertilizer integration technology.展开更多
基金financially supported by the National Natural Science Foundation of China (No.51374166, 51574189)the Natural Science Foundation Research Project of Shaanxi,China(No.2016JQ5041)the Shaanxi Province Department of Education Fund, China(No.16JK1450)
文摘The interaction mechanism between the combustion products of pulverized coal injected and coke in the raceway of blast furnace was studied through thermodynamic calculation and experiments.The results indicated that additives significantly affected the melting property of coal ash in high temperature zone.Although the unburnt char,raw coal ash,and catalyzed coal ash failed to wet the coke surface,the wettability of the catalyzed coal ash on the coke was greater than that of the raw coal ash.Since the unburnt char had weak reaction with the coke surface,it showed little influence on the surface morphology of the coke.The interaction between the raw coal ash and the coke gave rise to the increase in the pore size on the coke surface.However,the raw coal ash only affected the coke surface and the entrances of the pores owing to its poor fluidity.After being melted,the catalyzed coal ash was expected to immerge into the inside part of the coke and then react with the coke,resulting in an expansion and increase of coke cavities.The raw coal ash and the unburnt char reduced the coke reactivity,while the catalyzed coal ash improved the coke reactivity.Thereinto,the coal ash containing Fe2O3 exhibited a larger influence on the reactivity than that containing CaO.
文摘This review focuses on the occurrence and interactions of engineered nanoparticles(ENPs)and brominated flame retardants(BFRs)such as polybrominated diphenyl ethers(PBDEs)in water systems and the generation of highly complex compounds in the environment.The release of ENPs and BFRs(e.g.PBDEs)to aquatic environments during their usage and disposal are summarised together with their key interaction mechanisms.The major interaction mechanisms including electrostatic,van derWaals,hydrophobic,molecular bridging and steric,hydrogen andπ-bonding,cation bridging and ligand exchange were identified.The presence of ENPs could influence the fate and behaviour of PBDEs through the interactions as well as induced reactions under certain conditions which increases the formation of complex compounds.The interaction leads to alteration of behaviour for PBDEs and their toxic effects to ecological receptors.The intermingled compound(ENPs-BFRs)would show different behaviour from the parental ENPs or BFRs,which are currently lack of investigation.This review provided insights on the interactions of ENPs and BFRs in artificial,environmental water systems and wastewater treatment plants(WWTPs),which are important for a comprehensive risk assessment.
基金supported by the National Natural Science Foundation of China(Nos.21362004,21562013)Subsidy Project for Outstanding Key Laboratory of Guizhou Province in China(20154004)
文摘A series of novel chalcone derivatives that contain the 1,1-dichloropropene moiety was designed and synthesized. Bioactivity assays showed that most of the target compounds exhibited moderate to good antiviral activity against tobacco mosaic virus（TMV） at 500 mg/m L. Among the target compounds,compound 7h showed the highest in vivo inactivation activity against TMV with the EC50 and EC90value of 45.6 and 327.5 mg/m L, respectively, which was similar to that of Ningnanmycin（46.9 and 329.4 mg/m L）and superior to that of Ribavirin（145.1 and 793.1 mg/m L）. Meanwhile, the microscale thermophoresis and fluorescence spectroscopy experiments showed that the compound 7h had a strong interaction with the tobacco mosaic virus coat protein.
文摘Human immunodeficiency virus(HIV) and tuberculosis(TB) coinfection is a serious public health problem. HIV and TB promote each other, accelerating development of HIV to acquired immunodeficiency syndrome(AIDS) and heightening TB mortality. Determining interaction mechanism between HIV and Mycobacterium tuberculosis can lead to development of effective treatments. This study summarizes prevalence status of AIDS and TB coinfection and research advances concerning their interaction mechanism.
基金Project(2012zzts101)supported by the Fundamental Research Funds for the Central Universities,China
文摘Carboxylmethyl cellulose(CMC) has become a commercial organic binder in agglomeration of iron ore concentrates. The relative molecular mass and degree of substitution(DS) of CMC have a large impact on its binding performance. The interaction mechanism between CMC and iron ore particles was analyzed through Zeta potential measurements, adsorption measurements and infrared spectra. The results show that the interaction is chemical adsorption-oriented and the CMC's adsorption performance is related to the properties of CMC as well as the type of iron oxides. CMC has a greater affinity to Fe2O3 than Fe3O4, and CMC with higher relative molecular mass shows a higher adsorption isotherm. Pelletization of practical iron ore concentrates added with CMC further illustrates that CMC with higher relative molecular mass or DS exhibits a better binding performance, which is consistent with the results of adsorption tests.
基金funded by the National Key Research and Development Program of China(Nos.2018YFC1505302 and 2019YFC1509701)the National Natural Science Foundation of China(Nos.41977249 and 42090052)。
文摘To investigate the stability and interaction mechanism of the slope-pile-footing system under surcharge effects,the finite difference method(FDM)was adopted to analyze the response laws of the stability of the reinforced slope,evolution of the critical slip surface,stress characteristic of retaining structures,deformation and failure modes of the slope foundation and building footing under surcharge parameters,including the surcharge intensity,the surcharge position,and the surcharge width.The results show that surcharge parameters significantly affect the stability and the deformation characteristics of the slope-pile-footing system.Specifically speaking,with the increasing surcharge intensity and the decreasing surcharge position and width,the deformation and failure mode of the system will gradually evolve in a direction that is harmful to its stability.The interaction mechanism of the slope-pile-footing system is further clarified as the load transfer of the building footing,the generation of the additional stress in the slope foundation,and the adjustment of pile bending moment due to the stress redistribution.Correspondingly,the safety of anti-slide piles will determine the stability of the slope foundation and building footing.These findings are expected to provide guidance for the comprehensive development and utilization of filled slopes after reinforcement.
文摘A systematic analysis has been carried out to investigate the fields of application and interaction mechanism of polymeric carbohydrate, i.e. polysaccharides (including starch, dextrin, cellulose and cellulosic derivatives) on various oxides and salt-type minerals in the article, interaction mechanisms of electrostatic, of hydrogen bonding, and of chemical interaction between polymeric carbohydrate and these minerals are put forward.
文摘Semi-metal friction material was applied widely in brake process of traffic and dynamical system. The friction materials with rare earth additive were manufactured by heating press molding process. The effects of different reinforcing fibers and adhesives on the properties of the materials were studied by changing the formula. The results showed that the friction materials with YSM resin adhesive and hybrid fibers (Kevlar pulp and steel fiber) had higher and more stable friction coefficient and lower wear rate. Semi-metal friction materials with rare earths formed iron-rich surface layer in the worn surface, and the mechanisms of wear had obvious differences at typical temperature ranges.
文摘ESR measurements using spin trapping technique were carried out for β-carotene-halobenzene system under UV light irradiation.The ESR spectra observed in the presence and in the absence of β-carotene are markedly different.The possible scheme of β-carotene interacting with halogen atom was proposed.
文摘The electronic structure and bonding nature of adsorbing bonding complexes which consist of Amphoteric Collector-I and Mg^(2+), Ca^(2+), MgPO_4^-, CaPO_^-4, CaCO_3, as well aa MgCO_3, are studied using quantum chemistry CNDO/2, It is predicted that magnesium salts are more liable to form adsorbing chelates with Amphoteric Collector-I than calcium salts, and all results coincide with that obtained in flotation.
基金National Natural Science Foundation of China(Nos.61806051 and 61903078)Fundamental Research Funds for the Central Universities,China(Nos.2232021A-10 and 2232021D-32)Natural Science Foundation of Shanghai,China(No.20ZR1400400)。
文摘In the actual complex environment,the recognition accuracy of crop leaf disease is often not high.Inspired by the brain parallel interaction mechanism,a two-stream parallel interactive convolutional neural network(TSPI-CNN)is proposed to improve the recognition accuracy.TSPI-CNN includes a two-stream parallel network(TSP-Net)and a parallel interactive network(PI-Net).TSP-Net simulates the ventral and dorsal stream.PI-Net simulates the interaction between two pathways in the process of human brain visual information transmission.A large number of experiments shows that the proposed TSPI-CNN performs well on MK-D2,PlantVillage,Apple-3 leaf,and Cassava leaf datasets.Furthermore,the effect of numbers of interactions on the recognition performance of TSPI-CNN is discussed.The experimental results show that as the number of interactions increases,the recognition accuracy of the network also increases.Finally,the network is visualized to show the working mechanism of the network and provide enlightenment for future research.
基金The Chinese Academy of Sciences:KFJ-BRP-007-019,the authors declare no competing interests.
文摘As the two most principal active substances in the corn silk,polysaccharides and flavonoids,the mechanism of interaction between them has been a topic of intense research.This study provides an in-depth investigation of the interaction mechanism between corn silk glycans and luteoloside(LUT)and the synergistic role that result from this interaction.The interaction mechanism was evaluated by isothermal titration calorimetry(ITC)and circular dichroism(CD),and the synergistic role was evaluated by the expression of glucose transporters(GLUT-1),insulin secretion and surface plasmon resonance(SPR).CD and ITC results indicated that the interaction between CSGs and LUT mainly driven by the Cotton effects,enthalpy and entropy-driven.This interaction precipitated the formation of complexes(CSGs/LUT complexes)between corn silk glycans(CSGs)with four different molecular weights and luteoloside(LUT).Furthermore,the CSGs and LUT play a synergistic role in glucose regulation through GLUT-1 expression and insulin secretion experiments,compared to single luteoloside group.
基金University of Science and Technology of China Quality Project History of Medicine(2023YCZX02)Digital Museum Construction Project of Chinese Centre for Disease Control and Prevention(BB2110240080)The National Key R&D project granted by the Ministry of Science and Technology(2018YFA0902400).
文摘The mass communication model and interactive ritual chain theory,which serve as communication paradigms in the new media era,facilitate and enhance the synergy between the fields of social history of medicine and health communication.This study employs a comprehensive framework based on the five elements of the mass communication model:information source,communication subject,communication object,message content,and post-communication feedback.Additionally,it incorporates the interactive ritual chain theory to examine the evolving dynamics and developmental trajectory of research in the social history of medicine during the new media era.Conclusively,this paper acknowledges the existing interaction gaps in the interaction between health communication and the social history of medicine research while outlining the challenges for fostering collaboration and proposing strategic optimizations for effective integration.
基金supported by the Applied Basic Research Program of Changzhou(Grant No.CJ20253068)the internal Grant of Jiangsu University of Technology(Grant No.KYY25046)+1 种基金National Natural Science Foundation of China,Research Fund for International Scientists(Grant No.52350410475)The authors extend their appreciation to the Deputyship for Research and Innovation,Ministry of Education in Saudi Arabia for funding this research(IFKSUHCRA-4-1).
文摘Graphene quantum dots(GQDs)have emerged as a transformative technology in biomedicine,driven by their exceptional optical,electronic,physicochemical,and biological properties.Their substantialπ-conjugated system,low toxicity,biocompatibility,and tunable surface chemistries enable diverse functionalities,including adjustable fluorescence for biosensing and bioimaging,high drug loading capacity,effective cell membrane penetration for targeted delivery,andefficient radiation absorption for cancer therapeutics.Despite significant advancements,the interaction mechanisms of GQDs with biological systems remain inadequately explored,hindering their real-world clinical applications.This review summarizes the recent developments in GQD-based technologies,emphasizing the critical role of their interaction mechanisms in multifunctional applications,ranging from detection to therapy.It highlights innovative design strategies and the pivotal influence of GQD interactions with analytes,nucleic acids,and cellular components in enhancing the sensitivity and specificity of biosensors.Furthermore,it presents an in-depth analysis of their multifunctional roles and mechanisms in emerging applications like drug delivery,triple negative breast cancer treatment,and antimicrobial therapies.Particular attention is given to their synergistic role in combinational breast cancer therapies,where interactions with reactive oxygen species and photothermal agents amplify therapeutic efficacy.Finally,it addresses key challenges and proposes future research directions in this evolving field.
基金supported by National Natural Science Foundation of China(32201752)Xinjiang Tianchi Talents Program (TCYC2023TP02)Key Project of the Natural Science Foundation of Xinjiang Production and Construction Corps (2024DA001)
文摘Verticillium wilt,caused by the infamous pathogen Verticillium dahliae,presents a primary constraint on cotton cul-tivation worldwide.The complexity of disease resistance in cotton and the largely unexplored interaction dynamics between the cotton plant host and V.dahliae pathogen pose a crucial predicament for effectively managing cotton Verticillium wilt.Nevertheless,the most cost-effective approach to controlling this disease involves breeding and cul-tivating resistant cotton varieties,demanding a meticulous analysis of the mechanisms underlying cotton’s resistance to Verticillium wilt and the identification of pivotal genes.These aspects constitute focal points in disease-resistance breeding programs.In this review,we comprehensively discuss genetic inheritance associated with Verticillium wilt resistance in cotton,the advancements in molecular markers for disease resistance,the functional investiga-tion of resistance genes in cotton,the analysis of pathogenicity genes in V.dahliae,as well as the intricate interplay between cotton and this fungus.Moreover,we delve into the future prospects of cutting-edge research on cotton Verticillium wilt,aiming to proffer valuable insights for the effective management of this devastating fungus.
基金Project(51104185)supported by the National Natural Science Foundation of ChinaProject(2010QZZD003)supported by the Key Project of Central South University of Fundamental Research Funds for the Central Universities of China
文摘In order to explore the effect mechanism of solvent on the synthesis of the metal organic framework materials, the microscopic interaction between solvent and framework and the effects of N,N-dimethyl-formamide(DMF) or N-methyl- 2-pyrrolidone(NMP) on solvothermal synthesis of [Zn4O(BDC)3]8 were investigated through a combined DFT and experimental study. XRD and SEM showed that the absorbability of NMP in the pore of [Zn4O(BDC)3]8 was weaker than that of DMF. The thermal decomposition temperature of [Zn4O(BDC)3]8 synthesized in DMF was higher than that in NMP according to TG and FT-IR. In addition, the nitrogen sorption isotherms indicated that NMP improved gas sorption property of [Zn4O(BDC)3]8. The COSMO optimized calculations indicated that the total energy of Zn4O(BDC)3 in NMP was higher than that in DMF, and compared with non-solvent system, the charge of zinc atoms decreased and the charge value was the smallest in NMP. Furthermore, the interaction of DMF, NMP or DEF in [Zn4O(BDC)3]8 crystal model was calculated by DFT method. The results suggested that NMP should be easier to be removed from pore of materials than DMF from the point of view of energy state. It can be concluded that NMP was a favorable solvent to synthesize [Zn4O(BDC)3]8 and the microscopic mechanism was that the binding force between Zn4O(BDC)3 and NMP molecule was weaker than DMF.
基金supported by the National Key Research and Development Program of China (2016YFA0203102)the National Natural Science Foundation of China (Nos. 21227012, 21337004, 21507147)
文摘Dissolved organic matter（DOM） is ubiquitous in the environment and has high reactivity.Once engineered nanoparticles（ENPs） are released into natural systems, interactions of DOM with ENPs may significantly affect the fate and transport of ENPs, as well as the bioavailability and toxicity of ENPs to organisms. However, because of the complexity of DOM and the shortage of useful characterization methods, large knowledge gaps exist in our understanding of the interactions between DOM and ENPs. In this article, we systematically reviewed the interactions between DOM and ENPs, discussed the effects of DOM on the environmental behavior of ENPs, and described the changes in bioavailability and toxicity of ENPs caused by DOM. Critical evaluations of published references suggest further need for assessing and predicting the influences of DOM on the transport,transformation, bioavailability, and toxicity of ENPs in the environment.
基金The National Key R&D Program of China(2017YFB0308500).
文摘This study demonstrated the interaction mechanism of collagen peptides(CPs)with 4-ethylphenol(4-EP),phenol,guaiacol,and 4-ethylguaiacol(4-EG)in the ethanol-water solution.The ultraviolet visible spectroscopy,zeta potential tests and hydrogen nuclear magnetic spectroscopy manifested that CPs interacted with the phenolic compounds.Meanwhile,Isothermal titration calorimetry determination indicated that the CPs was hydrogen bonded with 4-EP in 52%(v/v)ethanol-water solution,while the hydrophobic forces played a major role in the interaction of CPs with guaiacol and 4-EG,respectively.Moreover,hydrogen and hydrophobic bonds were involved in the interaction between CPs and phenol.Finally,Head Space-solid Phase Microextraction Gas Chromatography Mass Spectrometry analysis indicated that the content of phenolic compounds in model solution efficiently decreased with the presence of CPs.In the real liquor,it was found that the content of volatile compounds(including phenolic compounds)was obviously decreased after CPs added.
基金the Key Research and Development Program of Zhejiang Province(No.2018C02045)the Program of Science and Technology of Zhejiang Province(No.LGN19B040001),China.
文摘Objectives:Folic acid is a vitamin that is not highly soluble in water and is sensitive to the environment.Therefore,it is important to find suitable carriers.This study aimed to exemplify the interaction of folic acid with zein in alkaline aqueous solutions and shed light on how zein can be used as a carrier for folic acid.Materials and Methods:Zein and folic acid were separately dissolved in NaOH solutions with a PH of 11.5.Zein solution and folic acid solution were combined in specific ratios.Various methods including multi-spectroscopy,dynamic light scattering,and electron microscopy combining with molecular dynamics simulations were used to study the interaction mechanism between zein and folic acid in alkaline aqueous solutions.Results:Fluorescence spectroscopy showed that the quenching of zein by folic acid was mainly static,and the main driving force behind this interaction was van der Waals forces and hydrogen bonds.The formation of zein–folic acid complexes was confirmed by ultraviolet–visible spectroscopy,Fourier transform infrared spectroscopy,and circular dichroism spectroscopy.The results also showed that the structure of zein changed when it interacted with folic acid.Dynamic light scattering analysis revealed that the addition of folic acid caused proteins to aggregate.The aggregates of the complexes had an irregular shape and were large,as observed by scanning electron microscopy and transmission electron microscopy.Molecular simulation was used to further investigate the interaction mechanisms.According to these findings,the folic acid molecule interacted with zein in a shallow recess near the protein surface.The dominant forces at play in the zein–folic acid interaction were van der Waals forces and electrostatic forces,including hydrogen bonding.Conclusion:The zein alkali-soluble system is very suitable for folic acid delivery.
基金supported by the National Natural Science Foundation of China(Grant No.51939005)the Key Research and Development Program of Jiangsu Province(Grant No.BE2021340).
文摘With a focus on the global tension between water resources and energy,the use of water-fertilizer integration technology in sprinkler irrigation has seen a rise.However,achieving efficient and effective fertilizer application remains a significant challenge.This study delves into the interaction mechanism between droplets and foliage during sprinkler fertigation,as well as discusses the application of water-saving and energy-saving irrigation methods in agriculture to address water crises and propel agricultural modernization.This study highlights two main aspects of this issue,that is,the droplet and foliage impact process,and the droplet and foliage dynamic interaction including foliar interception,leaf absorption,and leaf burning.Major challenges,such as inefficiencies in foliar interception and uncertainties in fertilization,have been identified,calling for further investigation into these areas.Moreover,perspectives to promote fertilization technology are proposed,including research on the dynamic impact of fertigation droplets on foliage,the development of universal models for leaf fertilizer retention,and the determination of critical fertigation concentrations under varying conditions to prevent leaf burning.This comprehensive review aims to provide a theoretical basis for establishing an integrated fertigation system for sprinkler irrigation and foster innovation in water-fertilizer integration technology.
