Carbon peaking and carbon neutralization have become catalysts for the development of green finance in China. The possible risks of climate change are also being considered by an increasing number of ...financial institutions. Environmental pollution and deterioration have become the main drivers of China’s unbalanced and insufficient development in the new era. As a new financial model, green finance has attracted much attention from people and the society. Promoting and integrating this concept into economic transformation and ecological civilization strategies can guarantee China’s high-quality green development through economic ecology. This paper analyzes the relationship between the development of green finance and the development of economic ecology. The research conclusion is of great significance to speed up the construction of ecological civilization in China. Firstly, this paper analyses the spatial correlation between green finance and economic ecological development in China using the Moran’s index. Secondly, this paper constructs a spatial econometric model and performs a regression empirical analysis using the panel data of 30 provinces in China from 1999 to 2020 to understand the impact of green finance on China’s ecological development. Results show that green finance demonstrates strong spatial agglomeration and that the development of economic ecology maintains a stable spatial positive correlation. Moreover, the spatial difference in economic ecological development is more obvious than that in green finance development. The development of green finance not only has a significantly positive role in promoting the economic and ecological development of a certain province but also promotes the development of economic ecology in the surrounding provinces. The development of economic ecology itself generates a positive spatial spillover effect, that is, improving the economic ecological level of a province will also improve the corresponding level of the surrounding provinces.
At present, the vast majority of Chinese farmers’ income comes from factor income. The distortion of factor market affects the sustainable growth of farmers’ income and the optimization of income ...structure to a certain extent. The development of factor market is particularly important to solve the problem of increasing farmers’ income. Based on the panel data of 28 provinces (cities, autonomous regions) in China from 1997 to 2021, this study constructs a spatial panel model to empirically analyze the spatial impact of the three major factor market distortions on Farmers’ income growth. The results show that Chinese farmers’ income has a strong spatial dependence, and there is a significant spatial correlation effect in different regions. There are serious market distortions, which have significantly hindered the growth of farmers’ income. The distortion of China’s factor market not only inhibits the growth of farmers’ income in this region, but also has a significant negative spatial spillover effect. The distortion of factor market restricts the improvement of farmers’ income in adjacent areas. In the future, we need to further straighten out the influencing factors and give full play to the income increasing efficiency of various factors.
Plain Language Summary
This study will take the impact of factor market distortion on Farmers’ income as the research perspective, and conduct a quantitative empirical study on the impact of three factor market distortions on Farmers’ income in different regions, which can provide policy reference for effectively improving farmers’ income in different regions. Therefore, this paper takes the factor market distortion and farmers’ income growth as the research object, based on the provincial panel data model, uses the generalized moment estimation and quasi maximum likelihood estimation and other research methods to empirically analyze the factors affecting farmers’ income increase, and empirically analyzes the spatial impact of farmers’ income increase and its spillover effect under the factor market distortion, so as to provide decision-making basis for the sustainable growth of farmers’ income in different regions.
Innovation is the foundation of an enterprise’s survival and development. Employee innovation is the source of enterprise innovation. Under the COVID-19 epidemic, staff innovation is crucial to ...whether an enterprise can transform a crisis into an opportunity. However, the negative emotions caused by the epidemic will hinder staff innovation. The influence of the COVID-19 pandemic in China was investigated from May 2020 to October 2021 by using questionnaires. This study explores the motivating mechanism and restricting factors of employees’ innovative behaviour under sudden public crisis events. The software SPSS 22.0 is used for the descriptive statistical and correlation analyses of the collected data. Enterprise managers need to study the influencing factors of employees’ innovative behaviour under the COVID-19 epidemic to solve the problem of employees’ negative emotions. Based on the statistical analysis of 639 valid questionnaires for employees of high-tech enterprises, this study explores the motivating mechanism and influencing factors of employees’ innovative behaviour from the aspects of positive psychological quality and leaders’ interpersonal emotion management. This study also uses work autonomy as a mediating variable to verify its mediating role in the process of employees’ positive psychological quality and leaders’ interpersonal emotion management on innovation behaviour. This study tested the moderating effect of employees’ perceived corporate social responsibility on the relationship between employees’ positive psychological quality, leaders’ interpersonal emotion management and innovative behaviour. Through the statistical analysis of 639 valid questionnaires of employees in high-tech enterprises, the relevant model assumptions are verified. Therefore, under the COVID-19 pandemic, enterprises should take responsibility from the aspect of caring for employees to promote the positive effect of employees’ psychological attitudes on work results. This study provides countermeasures to ensure the smooth progress of employee innovation activities.
•Nd self-ion implantation produces a smooth and hydrophobic surface on rare-earth WE43 Mg alloy.•The implanted layer is composed of mainly Nd2O3 and MgO.•Degradation is significantly retarded in ...simulated body fluids and cell culture medium.•The Nd-implanted WE43 alloy exhibits remarkably enhanced cell adhesion and biocompatibility.
Without introducing extraneous elements, a small amount of Nd is introduced into rare-earth WE43 magnesium alloy by ion implantation. The surface composition, morphology, polarization, and electrochemical properties, as well as weight loss, pH, and leached ion concentrations after immersion, are systematically evaluated to determine the corrosion behavior. The cell adhesion and viability are also determined to evaluate the biological response in vitro. A relatively smooth and hydrophobic surface layer composed of mainly Nd2O3 and MgO is produced and degradation of WE43 is significantly retarded. Furthermore, significantly enhanced cell adhesion and excellent biocompatibility are observed after Nd self-ion implantation.
Accessing health rights is an integral component of people's aspirations for a better life. Existing discussions and evaluations regarding the accessibility of health rights for minority rural ...migrants are insufficient. In comparison to objective health conditions, inequalities in health rights lead to chronic and long-term depletion of human capital among minority rural migrants. This study aimed to assess the overall impact, heterogeneity effects, and mechanisms of health rights accessibility on the urban integration of minority rural migrants.
Based on the 2017 China Migrants Dynamic Survey Data (CMDS), this study employs OLS models, 2SLS models, conditional mixed process (CMP) methods, and omitted variable tests to estimate the impact of health rights accessibility on the urban integration of minority rural migrants. Additionally, from the perspectives of migration scope and illness experience, this study explored the heterogeneity in the relationship between health rights accessibility and urban integration. Finally, using the Karlson-Holm-Breen (KHB) model, this study dissects the mechanisms through which health rights accessibility influences the urban integration of minority rural migrants.
Health rights accessibility significantly enhances the urban integration of minority rural migrants. Moreover, compared to minority rural migrants who move across provinces and who have no history of illness, those who migrate within the same province and who have experienced illness are more sensitive to the positive impact of health rights accessibility. However, the enhancing effect of health rights accessibility does not significantly differ between the new and old generations of minority rural migrants. Furthermore, health rights accessibility can indirectly improve the urban integration of minority rural migrants by elevating health levels, improving health habits, and reinforcing health behaviors. Among these, the indirect effects mediated by health habits are more pronounced.
The research conclusions underscore the issue of health accessibility and urban integration among minority rural migrants, providing a reexamination and clarification of the policy effects of health rights in promoting the urban integration of minority rural migrants. Relevant policy design should commence with improving the health rights of minority rural migrants, enhancing their health integration capabilities, and effectively boosting their ability to integrate into urban life.
Developing magnesium alloys with both high corrosion resistance and superior mechanical properties is a long-standing challenge for the lightweight metal community. Herein, processing route combining ...equal-channel angular pressing (ECAP) and water annealing to achieve simultaneous improvements on both anti-corrosion and mechanical performances of a Mg-2Zn-Mn-Ca-Ce alloy is proposed. The cast alloy was ECAP-processed at 573 k for 12 passes to obtain ultra-fine grains (UFG), followed by water annealing in the autoclave under 160 °C for 3 h. The treated sample exhibits significantly improved corrosion resistance, presenting less corrosion current density and hydrogen evolution rate in the Hanks' solution. The doubled yield/ultimate strength and elongation, as well as the better-maintained mechanical integrity after corrosion, were achieved simultaneously. The profuse dislocations and grain boundaries in the UFG substrate offer intensive hydrothermal-reaction driving force, favoring the formation of a thicker and more compact Mg(OH)2 coating layer. Such a protective coating layer together with the annealed substrate with fewer crystal defects effectively retards the corrosion degradation and preserves the mechanical integrity afterwards. Meanwhile, the modified heterogeneous substrate microstructure results in the observed superior strength-ductility synergy. The proposed processing route and the resulted comprehensive properties should be applicable to other magnesium alloys as well.
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•Corrosion and mechanical performances of a Mg alloy were improved simultaneously.•ECAPed UFG substrate favorites the enhanced protective-coating performance.•Heterogeneous substrate retards corrosion degradation and observes high strength.
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•Sericite microplates were incorporated into MAO coating of 2024 Al alloy.•The addition of sericite improves corrosion and wear resistance of MAO coatings.•The anticorrosion mechanism ...is related to the barrier effect of sericite microplates.•The improved antiwear properties are due to the formation of tribo-transfer film.
Although aluminum alloys are widely used in the aerospace and automotive industry, they are susceptible to local corrosion and wear during long-term service in harsh environment. In this work, micro-arc oxidation (MAO) coatings containing quasi-2D sericite microplates are prepared on the 2024 aluminum alloy, and their corrosion and wear resistance are investigated. The results reveal that the sericite-incorporated MAO sample prepared in the 15 g/L sericite electrolyte (M−15) possesses the best corrosion resistance in 3.5 wt% NaCl solution, as manifested by a corrosion current density of 2.93 × 10−10 A ∗ cm−2 that is 4 orders of magnitude less than that of the 2024 Al alloy substrate. The wear resistance of MAO coating is also improved by the addition of sericite microplates, which is shown by the low wear rate and reduced coefficient of friction (∼0.3) of M−15 against steel ball. Our mechanistic study reveals that the quasi-2D sericite microplates in the coatings can prevent the penetration of the corrosive media and facilitate the formation of the tribo-transfer film. The sericite-containing MAO coatings providing excellent protection to aluminum alloys under corrosion and wear conditions possess great application prospects and large commercial potential.
Inflammatory bowel disease (IBD) is a chronic inflammatory disease impairing the gastrointestinal tract, and its incidence and prevalence have been increasing over time worldwide. IBD greatly reduces ...peoples' quality of life and results in several life-threatening complications, including polyp, toxic colonic dilatation, intestinal perforation, gastrointestinal bleeding, and cancerization. The current therapies for IBD mainly include drugs for noncritical patients and operation for critical patients. However, continuous use of these drugs causes serious side effects and increased drug resistance, and the demand of effective and affordable drugs with minimal side effects for IBD sufferers is urgent. Natural-derived polysaccharides are becoming a research hotspot for their therapeutic effects on IBD. This study focuses on the research progress of various natural polysaccharides from plants, seaweeds, and mushrooms for the treatment of IBD during recent 20 years. Regulation of oxidative stress, inflammatory status, gut microbiota, and immune system and protection of the intestinal epithelial barrier function are the underlying mechanisms for the natural-derived polysaccharides to treat IBD. The excellent efficacy and safety of polysaccharides make them promising candidates for IBD therapy.
To investigate the re-adhesion and dynamic characteristics of the locomotive drive system with wheel slip controller, a co-simulation model of the train system was established by SIMPACK and ...MATLAB/SIMULINK. The uniform running and starting conditions were considered, and the influence of structural stiffness of the drive system and the wheel slip controller on the re-adhesion and acceleration performance of the locomotive was investigated. The simulation results demonstrated that the stick-slip vibration is more likely to occur in locomotives with smaller structural stiffnesses during adhesion reduction and recovery processes. There are many frequency components in the vibration acceleration spectrum of the drive system, because the longitudinal and rotational vibrations of the wheelset are coupled by the wheel–rail tangential force when stick-slip vibration occurs. In general, increasing the structural stiffness of the drive system and reducing the input energy in time are effective measures to suppress stick-slip vibration. It should also be noted that inappropriate matching of the wheel slip controller and drive system parameters may lead to electro-mechanical coupling vibration of the drive system, resulting in traction force fluctuation and poor acceleration performance.
Rapid corrosion in aqueous solutions of magnesium alloys is one of the major obstacles to their wide application, and coating plays a crucial role in their corrosion protection. Recently, protection- ...and function-integrated coatings have attracted much attention in the research field of magnesium alloys. In this work, a simple chemical conversion process is proposed to fabricate a composite coating on a magnesium–neodymium alloy through immersion in an aqueous solution made of Ca(OH)sub.2 and NaHCOsub.3. After the immersion process, a coating consisting of two spontaneously formed layers is acquired. The top flower-like layer is composed of Mgsub.5(OH)sub.2(COsub.3)sub.4∙4Hsub.2O, Mg(OH)sub.2 and CaCOsub.3, and the inner dense layer is speculated to be Mg(OH)sub.2. Electrochemical impedance spectroscopy, polarization tests, and hydrogen evolution are combined to evaluate the corrosion resistance in simulated body fluid, simulated seawater solution, and simulated concrete pore solution, which reveals that the coated sample has better corrosion resistance than the uncoated one. After the coated sample is modified with fluorinated silane, a water-repellent surface can be achieved with an average water contact angle of 151.74° and a sliding angle of about 4°. Therefore, our results indicate that effective corrosion protection and potential self-cleaning ability have been integrated on the surface of the magnesium alloy in this study. In addition, the formation mechanism of the self-layered coating is discussed from the viewpoint of the interaction between the substrate and its external solution.
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