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An analysis of the interaction mechanism between the social history of medicine research and health communication from the perspective of mass communication
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作者 Jian-Liang Huang Kun-Lan Zuo Huan Liu 《History & Philosophy of Medicine》 2024年第1期14-18,共5页
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
关键词 history of medicine health communication mass communication interaction mechanisms interaction ritual chain theory
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Strength weakening and its micromechanism in water–rock interaction,a short review in laboratory tests 被引量:3
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作者 Cun Zhang Qingsheng Bai +3 位作者 Penghua Han Lei Wang Xiaojie Wang Fangtian Wang 《International Journal of Coal Science & Technology》 EI CAS CSCD 2023年第1期18-32,共15页
Water–rock interaction(WRI)is a topic of interest in geology and geotechnical engineering.Many geological hazards and engineering safety problems are severe under the WRI.This study focuses on the water weakening of ... Water–rock interaction(WRI)is a topic of interest in geology and geotechnical engineering.Many geological hazards and engineering safety problems are severe under the WRI.This study focuses on the water weakening of rock strength and its infuencing factors(water content,immersion time,and wetting–drying cycles).The strength of the rock mass decreases to varying degrees with water content,immersion time,and wetting–drying cycles depending on the rock mass type and mineral composition.The corresponding acoustic emission count and intensity and infrared radiation intensity also weaken accordingly.WRI enhances the plasticity of rock mass and reduces its brittleness.Various microscopic methods for studying the pore characterization and weakening mechanism of the WRI were compared and analyzed.Various methods should be adopted to study the pore evolution of WRI comprehensively.Microscopic methods are used to study the weakening mechanism of WRI.In future work,the mechanical parameters of rocks weakened under long-term water immersion(over years)should be considered,and more attention should be paid to how the laboratory scale is applied to the engineering scale. 展开更多
关键词 Water–rock interaction Weakening mechanism Water content Immersion time Wetting–drying cycles Microscopic methods
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Utilizing hybrid faradaic mechanism via catalytic and surface interactions for high-performance flexible energy storage system
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作者 Dong-Gyu Lee Hyeonggeun Choi +9 位作者 Yeonsu Park Min-Cheol Kim Jong Bae Park Suok Lee Younghyun Cho Wook Ahn A-Rang Jang Jung Inn Sohn John Hong Young-Woo Lee 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第8期541-548,I0013,共9页
Improving the capacitance and energy density is a significant challenge while developing practical and flexible energy storage system(ESS).Redox mediators(RMs),as redox-active electrolyte additives,can provide additio... Improving the capacitance and energy density is a significant challenge while developing practical and flexible energy storage system(ESS).Redox mediators(RMs),as redox-active electrolyte additives,can provide additional energy storing capability via electrochemical faradaic contribution on electrodes for high-performance flexible ESSs.Particularly,determining effective material combinations between electrodes and RMs is essential for maximizing surface faradaic redox reactions for energy-storage performance.In this study,an electrode-RM system comprising heterostructured hybrid(carbon fiber(CF)/MnO_(2)) faradaic electrodes and iodine RMs(I-RMs) in a redox-active electrolyte is investigated.The CF/MnO_(2)with the 1-RMs(CF/MnO_(2)-I) induces dominant catalytic faradaic interaction with the I-RMs,significantly enhancing the surface faradaic kinetics and increasing the overall energy-storage performance.The CF/MnO_(2)-I ESSs show a 12.6-fold(or higher) increased volumetric energy density of 793.81 mWh L^(-1)at a current of 10 μA relative to ESSs using CF/MnO_(2)without I-RMs(CF/MnO_(2)).Moreover,the CF/MnO_(2)-I retains 93.1% of its initial capacitance after 10,000 cycles,validating the excellent cyclability.Finally,the flexibility of the ESSs is tested at different bending angles(180° to 0°),demonstrating its feasibility for flexible and high-wear environments.Therefore,CF/MnO_(2)electrodes present a practical material combination for high-performance flexible energy-storage devices owing to the catalytic faradaic interaction with I-RMs. 展开更多
关键词 Energy storage system Redox mediators Faradaic electrodes Catalytic interactions mechanical stability
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Interactions between Bacillus mucilaginosus and silicate minerals(weathered adamellite and feldspar):Weathering rate,products,and reaction mechanisms 被引量:7
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作者 Mo, Binbin Lian, Bin 《Chinese Journal Of Geochemistry》 EI CAS 2011年第2期187-192,共6页
Bacillus mucilaginosus is a common soil bacterium,and usually used as a model bacterium in studying microbe-mineral interactions.Several reaction mechanisms of B.mucilaginosus weathering silicate minerals were propose... Bacillus mucilaginosus is a common soil bacterium,and usually used as a model bacterium in studying microbe-mineral interactions.Several reaction mechanisms of B.mucilaginosus weathering silicate minerals were proposed.However,the molecule mechanisms and detailed processes were still unclear.In this paper,bacterium-mineral interactions were studied in terms of variations in pH value over the experimental period,variations in mineral composition,weathering rates of silicate minerals and volatile metabolites in the culture medium,etc.,to further explore the bacterium-mineral interaction mechanisms.The results showed that B.mucilaginosus could enhance silicate mineral weathering obviously.The weathering rates were quite different for various kinds of silicate minerals,and the weathering rate of weathered adamellite could reach 150 mg/m2/d.Although B.mucilaginosus produced little acidic substance,pH in the microenvironment of bacterium-mineral complex might be far lower than that of the circumjacent environment;a large amount of acetic acid was found in the metabolites,and was likely to play an important role as a ligand.These results appear to suggest that acidolysis and ligand degradation are the main mechanisms of B.mucilaginosus dissolving silicate minerals,the formation of bacterium-mineral complexes is the necessary condition for the bacteria weathering silicate minerals,and extracelluar polysaccharides played important roles in bacterium-mineral interaction processes by forming bacterium-mineral complexes and maintaining the spe-cial physicochemical properties of microenvironment. 展开更多
关键词 Bacillus mucilaginosus silicate mineral interaction weathering rate mechanism
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Mechanism of interaction relation between the rare-earth element Ce and impurity elements Pb and Bi in Ag-based filler metal 被引量:3
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作者 薛松柏 钱乙余 +1 位作者 赵振清 董健 《China Welding》 EI CAS 2001年第2期79-84,共6页
The mechanism of interaction relation between the rare-earth element Ce and elements Pb and Bi in Ag-based filler metal has been studied. The results show that the compounds CePb and CeBi with high melting point can b... The mechanism of interaction relation between the rare-earth element Ce and elements Pb and Bi in Ag-based filler metal has been studied. The results show that the compounds CePb and CeBi with high melting point can be easily produced between these three elements in the filler metal, which greatly limited the formation of the isolated phase Pb or Bi and also eliminated the bad effect of impurity elements Pb and Bi on the spreading property of Ag-based filler metal. The metallurgical and quantum-mechanical bond formation analysis show that a strong chemical affinity was existed between the rare-earth element Ce and impurity elements Pb and Bi, which was proved by the XRD analysis results. 展开更多
关键词 Ag-based filler metal rare-earth element mechanism of interaction
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Unstable Tropical Air-Sea Interaction Waves and Their Physical Mechanisms 被引量:6
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作者 张人禾 巢纪平 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1993年第1期61-70,共10页
In this paper, the tropical air-sea interaction is discussed by using a simple air-sea coupled model, in which the inertia-gravity waves are filtered off and only the equatorial Rossby waves are reserved in both the a... In this paper, the tropical air-sea interaction is discussed by using a simple air-sea coupled model, in which the inertia-gravity waves are filtered off and only the equatorial Rossby waves are reserved in both the atmosphere and the ocean. There exist two kinds of air-sea interaction waves in the coupled model, that is, the high-frequency fast waves and the low-frequency slow waves. The phase speed of the fast waves is westward and the frequencies are close to those of the equatorial Rossby waves in the atmosphere. The slow waves propagate westward in the part of short wavelengths and eastward in that of long wavelengths. There exist instabilities for both the westward and eastward propagating slow waves. If the fast waves are filtered off, there is little effect on the slow waves which have great influence on the long range process in the tropical air-sea coupled system. According to the tropical air-sea interaction waves we obtain here, a possible explanation to the propagating process of ENSO events is given. 展开更多
关键词 Unstable Tropical Air-Sea interaction Waves and Their Physical mechanisms ZHANG ENSO
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Physical Mechanism of Organic Matter-Mineral Interaction in Longmaxi Shale,Sichuan Basin,China 被引量:8
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作者 ZHAO Jianhua JIN Zhijun +2 位作者 JIN Zhenkui WEN Xin GENG Yikai 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第5期1923-1924,共2页
Objective Shale gas is as an important kind of unconventional natural gas,with a great resource potential,and its exploration and development has attracted much attention around the world.Organic matter(OM)pores are... Objective Shale gas is as an important kind of unconventional natural gas,with a great resource potential,and its exploration and development has attracted much attention around the world.Organic matter(OM)pores are a common constituent in shales and form the dominant pore network of many shale gas systems. 展开更多
关键词 OM Physical mechanism of Organic Matter-Mineral interaction in Longmaxi Shale Sichuan Basin China
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Infl uencing Mechanism and Interaction of Muscovite on Thermal Decomposition of Ammonium Polyphosphate 被引量:3
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作者 胡盛 CHEN Fei +2 位作者 LI Junguo 沈强 ZHANG Lianmeng 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第2期334-339,共6页
The interaction mechanism and phase evolution of ammonium polyphosphate(APP)mixed with muscovite(APP/muscovite)were studied by TG,XRD and SEM,respectively,during heating.When the temperature is not higher than 300... The interaction mechanism and phase evolution of ammonium polyphosphate(APP)mixed with muscovite(APP/muscovite)were studied by TG,XRD and SEM,respectively,during heating.When the temperature is not higher than 300 ℃,muscovite has no effect on the thermaldecomposition of APP,and the initialdecomposition temperature of APP/muscovite at 283 ℃ is basically the same as the APP at 295 ℃,and the main thermaldecomposition products are polyphosphoric acid and NH_4H_2PO_4 at 300 ℃.The polyphosphoric acid,the decomposition products of APP,can enable K and Siout of muscovite and interact with muscovite chemically to generate Al_2O_3·2SiO_2,α-SiO_2 and phosphates(AlPO_4 and K_5P_3O_(10))compounds during 400 ℃-800 ℃,which own obvious adhesive phenomenon and porous structure with the apparent porosity of 58.4%.Further reactions between phosphates other than reactions among Al_2O_3·2SiO_2 and α-SiO_2 can generate KAlP_2O_7 at 1 000 ℃ and the density of residualproduct is improved by low melting point phosphate filling pore to form relatively dense structure and decrease the apparent porosity to 44.4%.The flame resistant and self-supported ceramic materials are expected to enhance the fire-retarding synergistic effect between APP and muscovite. 展开更多
关键词 ammonium polyphosphate(APP) muscovite thermal decomposition influencing mechanism interaction
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Advances in Studies on Prevalence and Interaction Mechanism of Acquired Immunodeficiency Syndrome and Tuberculosis Coinfection 被引量:2
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作者 Chao Meng Na Li +2 位作者 Zhaoxiao Tong Huangxin Yan Shenxiao Min 《国际感染病学(电子版)》 CAS 2016年第4期115-118,共4页
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
关键词 AIDS TB COINFECTION interaction mechanism Sum up
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Investigation on Interaction Mechanism of Components in Fiction Materials Doping Rare Earths
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作者 许越 谢继亮 卢立国 《Journal of Rare Earths》 SCIE EI CAS CSCD 2007年第S1期369-372,共4页
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
关键词 friction materials PROPERTIES interaction mechanism rare earths
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APPLICATION AND INTERACTION MECHANISMS OF POLYMERIC CARBOHYDRATE IN OXIDES AND SALT-TYPE MINERALS
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作者 李晔 许时 刘奇 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 1996年第4期43-47,共5页
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
关键词 polymeric carbohydrate OXIDES salt-type minerals interaction mechanisms
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A Possible Mechanism of the Impact of Atmosphere-Ocean Interaction on the Activity of Tropical Cyclones Affecting China
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作者 任福民 白莉娜 +2 位作者 吴国雄 王在志 王元 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2012年第4期661-674,共14页
In this study, tropical cyclone data from China Meteorological Administration (CMA) and the ECMWF reanalysis data for the period 1958-2001 was used to propose a possible mechanism for the impacts of air- sea interac... In this study, tropical cyclone data from China Meteorological Administration (CMA) and the ECMWF reanalysis data for the period 1958-2001 was used to propose a possible mechanism for the impacts of air- sea interaction on the activity of tropical cyclones (TCs) affecting China. The frequency of TCs affecting China over past 40 years has trended downward, while during the same period, the air sea interaction in the two key areas of the Pacific region has significantly weakened. Our diagnoses and simulations suggest that air sea interactions in the central North Pacific tropics and subtropics (Area 1) have an important role in adjusting typhoon activities in the Northwest Pacific in general, and especially in TC activity affecting China. On the contrary, impacts of the air-sea interaction in the eastern part of the South Pacific tropics (Area 2) were found to be rather limited. As both observational analysis and modeling studies show that, in the past four decades and beyond, the weakening trend of the latent heat released from Area 1 matched well with the decreasing Northwest Pacific TC frequency derived from CMA datasets. Results also showed that the weakening trend of latent heat flux in the area was most likely due to the decreasing TC frequency over the Northwest Pacific, including those affecting China. Although our preliminary analysis revealed a possible mechanism through which the air sea interaction may adjust the genesis conditions for TCs, which eventually affect China, other relevant questions, such as how TC tracks and impacts are affected by these trends, remain unanswered. Further in-depth investigations are required. 展开更多
关键词 air sea interaction latent heat affecting China tropical cyclones impact mechanism
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Interaction mechanism between carboxylmethyl cellulose and iron ore concentrates in iron ore agglomeration 被引量:1
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作者 杨桂明 范晓慧 +3 位作者 陈许玲 袁礼顺 黄晓贤 李曦 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第4期1241-1246,共6页
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
关键词 羧甲基纤维素 铁矿石 矿石烧结 相对分子质量 相互作用机理 机制 CMC 结合性能
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Fluid interaction mechanism and diagenetic reformation of basement reservoirs in Beier Sag, Hailar Basin, China
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作者 LI Juan WEI Pingsheng +6 位作者 SHI Lanting CHEN Guangpo PENG Wei SUN Songling ZHANG Bin XIE Mingxian HONG Liang 《Petroleum Exploration and Development》 2020年第1期46-58,共13页
Based on analysis of core observation, thin sections, cathodoluminescence, scanning electron microscope(SEM), etc., and geochemical testing of stable carbon and oxygen isotopes composition, element content, fluid incl... Based on analysis of core observation, thin sections, cathodoluminescence, scanning electron microscope(SEM), etc., and geochemical testing of stable carbon and oxygen isotopes composition, element content, fluid inclusions, and formation water, the fluid interaction mechanism and diagenetic reformation of fracture-pore basement reservoirs of epimetamorphic pyroclastic rock in the Beier Sag, Hailar Basin were studied. The results show that:(1) Two suites of reservoirs were developed in the basement, the weathering section and interior section, the interior section has a good reservoir zone reaching the standard of type I reservoir.(2) The secondary pores are formed by dissolution of carbonate minerals, feldspar, and tuff etc.(3) The diagenetic fluids include atmospheric freshwater, deep magmatic hydrothermal fluid, organic acids and hydrocarbon-bearing fluids.(4) The reservoir diagenetic reformation can be divided into four stages: initial consolidation, early supergene weathering-leaching, middle structural fracture-cementation-dissolution, and late organic acid-magmatic hydrothermal superimposed dissolution. Among them, the second and fourth stages are the stages for the formation of weathering crust and interior dissolution pore-cave reservoirs, respectively. 展开更多
关键词 Hailar BASIN Beier SAG epimetamorphic PYROCLASTIC rock BASEMENT reservoir FLUID interaction mechanism DIAGENETIC reformation
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INTERACTION MECHANISM OF AMPHOTERIC COLLECTOR-I WITH METALLIC IONS AND MINERALS
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作者 Xu Xin SHAO Meng Xiong GUO Beijing Graduate School, China University of Mining and Technology Beijing 100083 K.Z. LIAO Department of Chemistry, Tsinghua University, Beijing 100084 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第5期403-404,共2页
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
关键词 MODE In interaction mechanism OF AMPHOTERIC COLLECTOR-I WITH METALLIC IONS AND MINERALS
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AN INVESTIGATION ON THE INTERACTION MECHANISM OF β-CAROTENE WITH HALOGEN ATOM PRODUCED IN HALOBENZENE BY UV IRRADIATION
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作者 Yong LI Bing SHI Qing Gui SHA Department of Chemistry,Tsinghua University,Beijing,100084 《Chinese Chemical Letters》 SCIE CAS CSCD 1990年第3期197-200,共4页
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
关键词 ESR AN INVESTIGATION ON THE interaction mechanism OF CAROTENE WITH HALOGEN ATOM PRODUCED IN HALOBENZENE BY UV IRRADIATION UV
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Crop Leaf Disease Recognition Network Based on Brain Parallel Interaction Mechanism
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作者 袁惠 郝矿荣 隗兵 《Journal of Donghua University(English Edition)》 CAS 2022年第2期146-155,共10页
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
关键词 brain parallel interaction mechanism recognition accuracy convolutional neural network crop leaf disease recognition
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Interaction Relationship Between Corporate Social Responsibility and Corporate Performance:Evidence from 201 Chinese Listed Companies and Preliminary Study of Its Underlying Mechanism
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作者 ZHANG Sirui 《International English Education Research》 2019年第2期90-93,共4页
Corporations actively fulfilling corporate social responsibility(CSR)is of more significance to society's sustainable development nowadays.This research discusses the interaction between CSR and corporate performa... Corporations actively fulfilling corporate social responsibility(CSR)is of more significance to society's sustainable development nowadays.This research discusses the interaction between CSR and corporate performance and then adopts other mediation variables to explain the underlying mechanism.The empirical analyses are performed on a sample of 201 listed Chinese firms.The result shows that CSR has a weak negative impact on corporate perfbnnance while being positively influenced by corporate performance significantly.Further study finds the reason may be CSR requires financial support,but has little to do with increasing shareholder wealth. 展开更多
关键词 CORPORATE social responsibility CORPORATE performance interaction RELATIONSHIP mechanism Eamings per share
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Novel understanding of Trichoderma interaction mechanisms
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作者 Matteo Lorito 《浙江大学学报(农业与生命科学版)》 CAS CSCD 北大核心 2004年第4期387-387,共1页
Trichoderma- based biofungicides are a reality in commercial agriculture, with more than 50 formulations registered worldwide as biopesticides or biofertilizers. Several research strategies have been applied to identi... Trichoderma- based biofungicides are a reality in commercial agriculture, with more than 50 formulations registered worldwide as biopesticides or biofertilizers. Several research strategies have been applied to identify the main genes and compounds involved in the complex, three-way interactions between fungal antagonists, plants and microbial pathogens. Proteome and genome analyses have greatly enhanced our ability to conduct targeted and genome-based functional studies. We have obtained reproducible 2-D maps of the entire fungal proteome in various conditions of interaction, which permitted the isolation of many proteins related to specific functions. Many differential proteins from several biocontrol strains of Trichoderma spp. during the in vivo interaction with different plants and/or several phytopathogenic fungi have been isolated and analyzed by MALDI-TOF. Relevant genes have been cloned and specifically inactivated, to demonstrate their function in biocontrol and induction of disease resistance. GFP-based reporter systems with interaction-inducible promoters allowed the characterization of regulatory sequences activated by the presence of the pathogen or the plant. From extensive cDNA. and EST libraries of genes expressed during Trichoderma-pathogen-plant interactions, we are identified and determined the role of a variety of novel genes and gene-products, including ABC transporters specifically induced during antagonism with other microbes; enzymes and other proteins that produce or act as novel elicitors of Induced Resistance in plant and promote root growth and crop yield; proteins possibly responsible of a gene-for-gene avirulent interaction between Trichoderma and plants; mycoparasitism-related inducers released from fungal pathogens and that activate biocontrol in Trichoderma; fungal promoters specifically induced during mycoparasitism and plant colonization; plant proteins and a novel phytoalexin induced by the presence of the fungal antagonist; etc. We have also transgenically demonstrated the ability of Trichoderma to transfer heterologous proteins into plants during root colonization. Finally we have used GFP and other markers to monitor the interaction in vivo and in situ between Trichoderma and its host (s) (the fungal pathogen and the plant). 展开更多
关键词 木霉素 相互作用机制 拮抗 真菌 无毒力 ISR 抗性
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Experimental study on the dispersion behavior of a microemulsion collector and its mechanism for enhancing low-rank coal flotation 被引量:1
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作者 Fan Lian Guosheng Li +3 位作者 Yijun Cao Baoxun Zhao Guangli Zhu Kai Fan 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2023年第7期893-901,共9页
As the poor dispersion of oily collectors and the inferior hydrophobicity of the mineral surface, the lowrank coal has an unsatisfactory flotation performance when using traditional collectors. In this paper, an ionic... As the poor dispersion of oily collectors and the inferior hydrophobicity of the mineral surface, the lowrank coal has an unsatisfactory flotation performance when using traditional collectors. In this paper, an ionic liquid microemulsion was used as a collector to enhance its floatability. Flotation test results demonstrated the microemulsion collector exhibited a superior collecting ability. A satisfactory separation performance of 78.66% combustible material recovery was obtained with the microemulsion collector consumption of 6 kg/t, which was equivalent to the flotation performance of diesel at a dosage of25 kg/t. The dispersion behavior of the microemulsion collector was investigated using the CryogenicTransmission Electron Microscopy. The interaction mechanism of the microemulsion collector on enhancing the low-rank coal flotation was elucidated through the Zeta potential and contact angle measurements, the Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis.The microemulsion collector exhibited superior dispersibility, which was dispersed into positively charged oil droplets with an average size of 160.21 nm in the pulp. Furthermore, the nano-oil droplets could be more efficiently adsorbed on the low-rank coal surface through electrostatic attraction, resulting in the improvement of its hydrophobicity. Thus, the microemulsion collector shows great application potential in improving the flotation performance of low-rank coal. 展开更多
关键词 MICROEMULSION DISPERSION Nano-oil droplets FLOTATION interaction mechanisms
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