The integration of digital tools and effective knowledge management practices is critical for enhancing administrative efficiency and institutional continuity in higher education. This study investigates the relations...The integration of digital tools and effective knowledge management practices is critical for enhancing administrative efficiency and institutional continuity in higher education. This study investigates the relationships between knowledge modeling, institutional memory, leadership styles, technology, and administrative efficiency at the University of Cape Coast (UCC). The study sought to identify the challenges and opportunities in integrating digital tools into administrative processes and to provide actionable recommendations for improvement. A mixed-methods research design was employed, combining quantitative analysis using Partial Least Squares Structural Equation Modeling (PLS-SEM) with qualitative thematic analysis of interviews. The findings revealed key challenges, including resistance to change, fragmented knowledge repositories, and inadequate funding, alongside opportunities such as centralized knowledge systems, cost-effective open-source tools, and capacity-building initiatives. The study highlights the importance of strategic leadership, robust policies, and investments in digital infrastructure to enhance administrative practices. Policy implications include the need for clear digital transformation guidelines and leadership training to foster innovation and collaboration. Recommendations include investing in scalable digital tools, implementing comprehensive capacity-building programs, and promoting stakeholder engagement to drive successful digital integration. These insights provide a roadmap for UCC and similar institutions seeking to optimize administrative efficiency through digital transformation.展开更多
Institutional logic theory,a pivotal framework within organizational studies,delineates the multifaceted and intricate logics that underpin organizational fields.This theoretical perspective elucidates the manner in w...Institutional logic theory,a pivotal framework within organizational studies,delineates the multifaceted and intricate logics that underpin organizational fields.This theoretical perspective elucidates the manner in which diverse individuals or groups within an organization internalize and manifest distinct institutional logics,alongside the ensuing political and cultural conflicts.Furthermore,the theory endeavors to elucidate the complexities inherent in institutional logic across organizational fields,examining the reflection of these logics among various individuals or groups and their associated political and cultural dichotomies.Central to this discourse is the acknowledgment of the core systems that constitute the fabric of a country,encompassing the state,market,familial structures,corporate entities,professional bodies,and religious institutions.These components not only coexist with inherent conflicts but also exhibit a high degree of interdependence,underlined by their shared institutional logics.This literature attempts to review and analysis institutional logic in the field of entrepreneurship and integrates institutional logic into entrepreneurs’personal background,experience,and other social characteristics,and study how institutional logic operates.It is recommended that future researchers take entrepreneurs as the research object and conduct more in-depth research on the evolution of organizational response strategies when political and cultural conflicts occur between different groups within the enterprise,combined with institutional logic theory.展开更多
We construct a model to examine the time-varying ambiguity of investors.When ambiguity occurs concerning recent news,long(short)position investors who are averse to ambiguity reduce(increase)their holdings,resulting i...We construct a model to examine the time-varying ambiguity of investors.When ambiguity occurs concerning recent news,long(short)position investors who are averse to ambiguity reduce(increase)their holdings,resulting in price drops(rises).We empirically analyze how the“two sessions,”a significant event with high policy ambiguity in China,affect the financial market.Our findings suggest that institutional investors mainly sell their holdings between 15 and 5 days before the meetings.Furthermore,the delay in the“two sessions”in 2020 suggests that these selloffs are driven by ambiguity aversion rather than new information.展开更多
Financial inclusion has recently emerged as an important pillar for sustainable economic growth,poverty eradication,and social transformation globally.While the effects of institutional quality on financial inclusion ...Financial inclusion has recently emerged as an important pillar for sustainable economic growth,poverty eradication,and social transformation globally.While the effects of institutional quality on financial inclusion have been widely investigated,their long-term effects have largely been underexplored,particularly for the Asia–Pacific region.We are especially interested in these long-term effects because institutional reforms require time for implementation and their impacts on various socioeconomic issues are only gradually observed.This paper has developed a new index of institutional quality for countries in the Asia–Pacific region from 2004 to 2020 using the principal component analysis.We estimate the long-term effects of institutional quality on financial inclusion using long-term estimators,including the augmented mean group and the common correlated effects mean group estimators.In our study,institutional quality is proxied by the new index developed in this paper and then by each of the five fundamental aspects of institutional quality:(i)business freedom,(ii)regulatory quality,(iii)investment freedom,(iv)government effectiveness,and(v)the rule of law.We find that improved institutional quality is fundamental to achieving financial inclusion in the region.These effects are particularly prominent in high-income countries in the Asia–Pacific region.However,a closer look at these long-term effects reveals that this effect is conditional on the income level.Interestingly,this long-term effect can be established for high-income countries such as Australia and Japan but not for Singapore.In addition,in the case of middle-income countries,the long-term effect can be confirmed for countries such as Malaysia,Indonesia,and the Philippines but not for Thailand and Vietnam.Our results show that institutional reform,albeit very important,should not be considered the only fundamental pillar ensuring financial inclusion,sustainable economic growth,and social transformation in the long run.展开更多
Stanbic Bank Zimbabwe is strategically positioning itself as a critical bridge for Zimbabwe’s local businesses,seeking to navigate the vast and complex Chinese market.
A performance improvement model of research and development(R&D)institutions based on evolutionary game and Bayesian network is proposed.First,the nature and performance factors of new R&D institutions are sys...A performance improvement model of research and development(R&D)institutions based on evolutionary game and Bayesian network is proposed.First,the nature and performance factors of new R&D institutions are systematically analyzed,the appropriate factor model is found,and the sharing of performance benefits between institutions and employees,the change in distribution proportion,and the risk of institutional improvement and employee cooperation are considered.Second,based on the mechanism improvement and employee cooperation,the payment matrix is given and evolutionary game analysis is carried out to obtain a stable and balanced institutional improvement probability and employee cooperation probability.These two probability values are substituted into the Bayesian network model of performance improvement of new R&D institutions,and the posterior probability of performance improvement is predicted by Bayesian network reasoning and diagnosis to find effective improvement measures.Finally,practical case analysis is given to verify the effectiveness and practicability of the proposed method.展开更多
Drug regulation is the most important policy to ensure drug safety.In this article,we analyzed institutional changes and problems in China＇s drug regulation.In addition,suggestions were provided to enhance the capaci...Drug regulation is the most important policy to ensure drug safety.In this article,we analyzed institutional changes and problems in China＇s drug regulation.In addition,suggestions were provided to enhance the capacity of drug regulation,including a clearer functional positioning for drug regulation,increased resource inputs in drug regulation at central level,a more rational allocation of vertical drug regulatory functions,and an improved supervision mechanism for regulatory departments.展开更多
This article reflects on the process of transcribing spoken interaction and makes a comparative analysis of two different varieties of spoken interaction(casual conver- sation and institutional talk). By doing so, it ...This article reflects on the process of transcribing spoken interaction and makes a comparative analysis of two different varieties of spoken interaction(casual conver- sation and institutional talk). By doing so, it reveals how the different purposes of speech result in their distinctive characteristics, and shows how language is struc- tured to construct ideational meanings(Field) and interpersonal meanings(Tenor) that define each context.展开更多
The experimental regularity and the mechanism of coercive force of metallic cobalt powders and WC Co mixture powders used for WC Co cemented carbides production were explored. The results show that the specific coer...The experimental regularity and the mechanism of coercive force of metallic cobalt powders and WC Co mixture powders used for WC Co cemented carbides production were explored. The results show that the specific coercive force H sc is a practical physical parameter which can show exactly the demagnetization characteristic of cobalt, and its magnitude is related to structure of cobalt. The H sc of WC Co mixture powders bears a simple positive going relation to Co content in them when the structure of cobalt is constant. It increases with fining and well distributing of cobalt particles in WC Co mixture powders due to the increase of the magnetic moment interaction of adjacent cobalt particles and the residual stress existing among powder particles by grinding.展开更多
Relaxation of control over the upstream business of the petroleum industry in China is discussed. The authors suggest that a basic institutional preparation should be made before relaxing control over the upstream bus...Relaxation of control over the upstream business of the petroleum industry in China is discussed. The authors suggest that a basic institutional preparation should be made before relaxing control over the upstream business, and that the institutional preparation includes at least four parts： 1） setting up the admission standards, 2） perfecting the management system of mining rights, 3） reforming the royalty and taxation system for oil and gas resources, and 4） improving the supervision and management system. Stressing the institutional preparation before relaxation of control does not mean that China could not relax control over the upstream business until the management systems are perfected, but the authors suggest that China could establish a necessary system for relaxation of control and to improve it with future practice.展开更多
Most community forests in hill regions of northeast India have been managed by traditional local institutions for centuries and most of these institutions remain functional even today. Higher forest coverage on privat...Most community forests in hill regions of northeast India have been managed by traditional local institutions for centuries and most of these institutions remain functional even today. Higher forest coverage on private and community lands as compared to government land indicates that traditional institutions effectively manage community forests in the region. The present study was conducted through a survey of literature and field work using participatory research tools viz., PRA exercises, group discussions and questionnaire interviews with key informants in northeast India. We categorized the institutions involved in conservation and management of forests into three major types： traditional, quasi-traditional and modern. Traditional institutions with hierarchal structure were found in all states and are intact and functional in the state of Meghalaya. Quasi-traditional institutions, a blend of traditional and modern institutions were prevalent in Nagaland while modern institutions have almost replaced traditional institutions in Mizoram. We recorded at least eleven types of community forests viz., group of village forest, village forest, restricted forest, sacred forest, clan forest, cemetery forest, regeneration forest, bamboo forest, recreation forest, village reserved forest and medicinal plantation in villages of three states. The tribal people, through long-term trial and error experiments, have developed an elaborate, functional and generally democratic system of conservation and management of forests and associated natural ecosystems. Several forest and natural resource management lessons can be learnt from the institutional structure and decision making system of the evolving and dynamic institutions of tribal communities of the region.展开更多
The influence of γ-phase composition in WC-Co cemented carbides on its specific coercive force H_(sc) hasbeen studied by analysing the imitative alloys of γ-phase. The results show that the H_(sc) of γ-phase is low...The influence of γ-phase composition in WC-Co cemented carbides on its specific coercive force H_(sc) hasbeen studied by analysing the imitative alloys of γ-phase. The results show that the H_(sc) of γ-phase is lower thanthat of pure cobalt, because the solute W can raise γ-phase H_(sc) but the carbon exhibits more intense negativeeffect on H_(sc). The effect is enhanced with raising the C solubilities in γ-phase.展开更多
Literature asserts that prenatal care is an imperative factor for subsequent health care utilization. However, in the Indian settings presence of selection bias while determining the impact of ANC visits on institutio...Literature asserts that prenatal care is an imperative factor for subsequent health care utilization. However, in the Indian settings presence of selection bias while determining the impact of ANC visits on institutional delivery has been overlooked by the researchers. Therefore this paper aims to examine the net impact of ANC visits on subsequent utilization of institutional delivery after removing the presence of selection bias using recent round of National Family Health survey data. The analysis has been carried out in two separate models, in the first model 1-2 ANC visits been compared with no visit and in the second model three or more antenatal care visits with no visit. The propensity score matching analysis used in this study sheds new light into this line of research which provides an effective strategy for controlling the confounding influence of institutional delivery. Employing the propensity score matching estimation approach we found women who made 1-2 ANC visits had 6.6 percent higher chance to deliver in an institution compared to women who made no visit. In addition, if a woman visited health centre three or more than three times, her chances were 31 percent higher to deliver in an institution. Result based on sensitivity analysis suggests that selection bias on unobserved covariates would have to be around 40 percent to alter the impact of 1-2 ANC visits. Findings suggest that interventions which plan to increase institutional delivery should target pregnant women who come for ANC checkups at institution first time, and health workers should encourage women to return to the health centre for more numbers of visits, as our results indicate that three or more ANC visits significantly change the women’s attitudes towards institutional delivery.展开更多
The magnetic properties and microstructure of diffusion annealed [Ta/Nd/NdFeB/Nd/Ta]thin films have been investigated. The films were deposited on Si substrate with various thickness ratio of Nd/NdFeB layer (R=0～3.3)...The magnetic properties and microstructure of diffusion annealed [Ta/Nd/NdFeB/Nd/Ta]thin films have been investigated. The films were deposited on Si substrate with various thickness ratio of Nd/NdFeB layer (R=0～3.3), then diffused and crystallized by annealing at 650℃ for 10 min. The film without Nd layer showed soft magnetic behavior and high content of a-Fe phase. The films with R > =1 showed good hard magnetic properties with the high coercivity of about 20 kOe.展开更多
Rare earth giant magnetostrictive materials(GMMs)Tb_(1-x)Dy_(x)Fe_(2±δ)(Tb-Dy-Fe)have been successfully employed in many microelectromechanical devices due to their excellent magnetostrictive properties at room ...Rare earth giant magnetostrictive materials(GMMs)Tb_(1-x)Dy_(x)Fe_(2±δ)(Tb-Dy-Fe)have been successfully employed in many microelectromechanical devices due to their excellent magnetostrictive properties at room temperature.However,Tb-Dy-Fe still shows a relatively large coercivity with high hysteresis,which inevitably limits its application range.Herein,micromagnetic simulations are performed to investigate the size effect of precipitated phase(α-Fe)on coercivity in Tb-Dy-Fe.Simulation results demonstrate that the coercivity is reduced from 31.46 to 12.48 mT with increasing the size ofα-Fe from 4 to 50 nm in Tb-Dy-Fe since the precipitated phase ofα-Fe can act as a magnetization reversal nucleus.This decreasing trend of coercivity can be well fitted with an inverse square relationship,which agrees well with the nucleation theory.Our study highlights that the coercivity of Tb-Dy-Fe can be tailored by tuning the size ofα-Fe precipitation.展开更多
文摘The integration of digital tools and effective knowledge management practices is critical for enhancing administrative efficiency and institutional continuity in higher education. This study investigates the relationships between knowledge modeling, institutional memory, leadership styles, technology, and administrative efficiency at the University of Cape Coast (UCC). The study sought to identify the challenges and opportunities in integrating digital tools into administrative processes and to provide actionable recommendations for improvement. A mixed-methods research design was employed, combining quantitative analysis using Partial Least Squares Structural Equation Modeling (PLS-SEM) with qualitative thematic analysis of interviews. The findings revealed key challenges, including resistance to change, fragmented knowledge repositories, and inadequate funding, alongside opportunities such as centralized knowledge systems, cost-effective open-source tools, and capacity-building initiatives. The study highlights the importance of strategic leadership, robust policies, and investments in digital infrastructure to enhance administrative practices. Policy implications include the need for clear digital transformation guidelines and leadership training to foster innovation and collaboration. Recommendations include investing in scalable digital tools, implementing comprehensive capacity-building programs, and promoting stakeholder engagement to drive successful digital integration. These insights provide a roadmap for UCC and similar institutions seeking to optimize administrative efficiency through digital transformation.
文摘Institutional logic theory,a pivotal framework within organizational studies,delineates the multifaceted and intricate logics that underpin organizational fields.This theoretical perspective elucidates the manner in which diverse individuals or groups within an organization internalize and manifest distinct institutional logics,alongside the ensuing political and cultural conflicts.Furthermore,the theory endeavors to elucidate the complexities inherent in institutional logic across organizational fields,examining the reflection of these logics among various individuals or groups and their associated political and cultural dichotomies.Central to this discourse is the acknowledgment of the core systems that constitute the fabric of a country,encompassing the state,market,familial structures,corporate entities,professional bodies,and religious institutions.These components not only coexist with inherent conflicts but also exhibit a high degree of interdependence,underlined by their shared institutional logics.This literature attempts to review and analysis institutional logic in the field of entrepreneurship and integrates institutional logic into entrepreneurs’personal background,experience,and other social characteristics,and study how institutional logic operates.It is recommended that future researchers take entrepreneurs as the research object and conduct more in-depth research on the evolution of organizational response strategies when political and cultural conflicts occur between different groups within the enterprise,combined with institutional logic theory.
基金National Natural Science Foundation of China(Grant No.71771006)Science and Technology Support Plan of Guizhou(Grant No.2023–221).
文摘We construct a model to examine the time-varying ambiguity of investors.When ambiguity occurs concerning recent news,long(short)position investors who are averse to ambiguity reduce(increase)their holdings,resulting in price drops(rises).We empirically analyze how the“two sessions,”a significant event with high policy ambiguity in China,affect the financial market.Our findings suggest that institutional investors mainly sell their holdings between 15 and 5 days before the meetings.Furthermore,the delay in the“two sessions”in 2020 suggests that these selloffs are driven by ambiguity aversion rather than new information.
基金Ho Chi Minh City Open University,E2021.04.1,Duc Vo。
文摘Financial inclusion has recently emerged as an important pillar for sustainable economic growth,poverty eradication,and social transformation globally.While the effects of institutional quality on financial inclusion have been widely investigated,their long-term effects have largely been underexplored,particularly for the Asia–Pacific region.We are especially interested in these long-term effects because institutional reforms require time for implementation and their impacts on various socioeconomic issues are only gradually observed.This paper has developed a new index of institutional quality for countries in the Asia–Pacific region from 2004 to 2020 using the principal component analysis.We estimate the long-term effects of institutional quality on financial inclusion using long-term estimators,including the augmented mean group and the common correlated effects mean group estimators.In our study,institutional quality is proxied by the new index developed in this paper and then by each of the five fundamental aspects of institutional quality:(i)business freedom,(ii)regulatory quality,(iii)investment freedom,(iv)government effectiveness,and(v)the rule of law.We find that improved institutional quality is fundamental to achieving financial inclusion in the region.These effects are particularly prominent in high-income countries in the Asia–Pacific region.However,a closer look at these long-term effects reveals that this effect is conditional on the income level.Interestingly,this long-term effect can be established for high-income countries such as Australia and Japan but not for Singapore.In addition,in the case of middle-income countries,the long-term effect can be confirmed for countries such as Malaysia,Indonesia,and the Philippines but not for Thailand and Vietnam.Our results show that institutional reform,albeit very important,should not be considered the only fundamental pillar ensuring financial inclusion,sustainable economic growth,and social transformation in the long run.
文摘Stanbic Bank Zimbabwe is strategically positioning itself as a critical bridge for Zimbabwe’s local businesses,seeking to navigate the vast and complex Chinese market.
基金supported by the National Natural Science Foundation of China(72071106)Jiangsu Provincial Social Science Fund(23EYA001)+1 种基金Jiangsu Provincial Education Science Planning Fund(Ba/2024/08)Jiangsu Higher Education Association Fund(24FYHLX090)。
文摘A performance improvement model of research and development(R&D)institutions based on evolutionary game and Bayesian network is proposed.First,the nature and performance factors of new R&D institutions are systematically analyzed,the appropriate factor model is found,and the sharing of performance benefits between institutions and employees,the change in distribution proportion,and the risk of institutional improvement and employee cooperation are considered.Second,based on the mechanism improvement and employee cooperation,the payment matrix is given and evolutionary game analysis is carried out to obtain a stable and balanced institutional improvement probability and employee cooperation probability.These two probability values are substituted into the Bayesian network model of performance improvement of new R&D institutions,and the posterior probability of performance improvement is predicted by Bayesian network reasoning and diagnosis to find effective improvement measures.Finally,practical case analysis is given to verify the effectiveness and practicability of the proposed method.
文摘Drug regulation is the most important policy to ensure drug safety.In this article,we analyzed institutional changes and problems in China＇s drug regulation.In addition,suggestions were provided to enhance the capacity of drug regulation,including a clearer functional positioning for drug regulation,increased resource inputs in drug regulation at central level,a more rational allocation of vertical drug regulatory functions,and an improved supervision mechanism for regulatory departments.
文摘This article reflects on the process of transcribing spoken interaction and makes a comparative analysis of two different varieties of spoken interaction(casual conver- sation and institutional talk). By doing so, it reveals how the different purposes of speech result in their distinctive characteristics, and shows how language is struc- tured to construct ideational meanings(Field) and interpersonal meanings(Tenor) that define each context.
文摘The experimental regularity and the mechanism of coercive force of metallic cobalt powders and WC Co mixture powders used for WC Co cemented carbides production were explored. The results show that the specific coercive force H sc is a practical physical parameter which can show exactly the demagnetization characteristic of cobalt, and its magnitude is related to structure of cobalt. The H sc of WC Co mixture powders bears a simple positive going relation to Co content in them when the structure of cobalt is constant. It increases with fining and well distributing of cobalt particles in WC Co mixture powders due to the increase of the magnetic moment interaction of adjacent cobalt particles and the residual stress existing among powder particles by grinding.
文摘Relaxation of control over the upstream business of the petroleum industry in China is discussed. The authors suggest that a basic institutional preparation should be made before relaxing control over the upstream business, and that the institutional preparation includes at least four parts： 1） setting up the admission standards, 2） perfecting the management system of mining rights, 3） reforming the royalty and taxation system for oil and gas resources, and 4） improving the supervision and management system. Stressing the institutional preparation before relaxation of control does not mean that China could not relax control over the upstream business until the management systems are perfected, but the authors suggest that China could establish a necessary system for relaxation of control and to improve it with future practice.
文摘Most community forests in hill regions of northeast India have been managed by traditional local institutions for centuries and most of these institutions remain functional even today. Higher forest coverage on private and community lands as compared to government land indicates that traditional institutions effectively manage community forests in the region. The present study was conducted through a survey of literature and field work using participatory research tools viz., PRA exercises, group discussions and questionnaire interviews with key informants in northeast India. We categorized the institutions involved in conservation and management of forests into three major types： traditional, quasi-traditional and modern. Traditional institutions with hierarchal structure were found in all states and are intact and functional in the state of Meghalaya. Quasi-traditional institutions, a blend of traditional and modern institutions were prevalent in Nagaland while modern institutions have almost replaced traditional institutions in Mizoram. We recorded at least eleven types of community forests viz., group of village forest, village forest, restricted forest, sacred forest, clan forest, cemetery forest, regeneration forest, bamboo forest, recreation forest, village reserved forest and medicinal plantation in villages of three states. The tribal people, through long-term trial and error experiments, have developed an elaborate, functional and generally democratic system of conservation and management of forests and associated natural ecosystems. Several forest and natural resource management lessons can be learnt from the institutional structure and decision making system of the evolving and dynamic institutions of tribal communities of the region.
文摘The influence of γ-phase composition in WC-Co cemented carbides on its specific coercive force H_(sc) hasbeen studied by analysing the imitative alloys of γ-phase. The results show that the H_(sc) of γ-phase is lower thanthat of pure cobalt, because the solute W can raise γ-phase H_(sc) but the carbon exhibits more intense negativeeffect on H_(sc). The effect is enhanced with raising the C solubilities in γ-phase.
文摘Literature asserts that prenatal care is an imperative factor for subsequent health care utilization. However, in the Indian settings presence of selection bias while determining the impact of ANC visits on institutional delivery has been overlooked by the researchers. Therefore this paper aims to examine the net impact of ANC visits on subsequent utilization of institutional delivery after removing the presence of selection bias using recent round of National Family Health survey data. The analysis has been carried out in two separate models, in the first model 1-2 ANC visits been compared with no visit and in the second model three or more antenatal care visits with no visit. The propensity score matching analysis used in this study sheds new light into this line of research which provides an effective strategy for controlling the confounding influence of institutional delivery. Employing the propensity score matching estimation approach we found women who made 1-2 ANC visits had 6.6 percent higher chance to deliver in an institution compared to women who made no visit. In addition, if a woman visited health centre three or more than three times, her chances were 31 percent higher to deliver in an institution. Result based on sensitivity analysis suggests that selection bias on unobserved covariates would have to be around 40 percent to alter the impact of 1-2 ANC visits. Findings suggest that interventions which plan to increase institutional delivery should target pregnant women who come for ANC checkups at institution first time, and health workers should encourage women to return to the health centre for more numbers of visits, as our results indicate that three or more ANC visits significantly change the women’s attitudes towards institutional delivery.
文摘The magnetic properties and microstructure of diffusion annealed [Ta/Nd/NdFeB/Nd/Ta]thin films have been investigated. The films were deposited on Si substrate with various thickness ratio of Nd/NdFeB layer (R=0～3.3), then diffused and crystallized by annealing at 650℃ for 10 min. The film without Nd layer showed soft magnetic behavior and high content of a-Fe phase. The films with R > =1 showed good hard magnetic properties with the high coercivity of about 20 kOe.
基金financially supported by the National Key R&D Program of China(No.2021YFB3501401)the National Natural Science Foundation of China(No.52001103)+1 种基金Zhejiang Provincial Natural Science Foundation of China(No.LQ21E010001)the Ten Thousand Talents Plan of Zhejiang Province of China(No.2019R52014)。
文摘Rare earth giant magnetostrictive materials(GMMs)Tb_(1-x)Dy_(x)Fe_(2±δ)(Tb-Dy-Fe)have been successfully employed in many microelectromechanical devices due to their excellent magnetostrictive properties at room temperature.However,Tb-Dy-Fe still shows a relatively large coercivity with high hysteresis,which inevitably limits its application range.Herein,micromagnetic simulations are performed to investigate the size effect of precipitated phase(α-Fe)on coercivity in Tb-Dy-Fe.Simulation results demonstrate that the coercivity is reduced from 31.46 to 12.48 mT with increasing the size ofα-Fe from 4 to 50 nm in Tb-Dy-Fe since the precipitated phase ofα-Fe can act as a magnetization reversal nucleus.This decreasing trend of coercivity can be well fitted with an inverse square relationship,which agrees well with the nucleation theory.Our study highlights that the coercivity of Tb-Dy-Fe can be tailored by tuning the size ofα-Fe precipitation.
