Magnetic semiconductors have been pursued for over 50 years because they combine two critical components of modern information technology: semiconductors for logic and magnets for memory. Remarkably, boosted by the di...Magnetic semiconductors have been pursued for over 50 years because they combine two critical components of modern information technology: semiconductors for logic and magnets for memory. Remarkably, boosted by the discovery of ferromagnetism in the (III,Mn)As system two decades ago, magnetic semiconductors have become one of leading material systems which are critical for future applications in energy efficient information technology, quantum computing, and quantum communication. However, after more than a decade of rapid development, the ongoing research in magnetic semiconductors must now face reality:"Is it possible to create magnetic semiconductors that work at room temperature?" To answer this question, great efforts have recently been made in theory and experiments to discover and design new material platforms to host magnetic ions. These recent advances have thus revived our understanding of the field and lifted the field off for a new opportunity.展开更多
One effective and proven tool for managing risk is insurance. At the same time, insurers, reinsurers, insurance, and reinsurance brokers in search of the relevant value of their services in the eyes of insured and lon...One effective and proven tool for managing risk is insurance. At the same time, insurers, reinsurers, insurance, and reinsurance brokers in search of the relevant value of their services in the eyes of insured and long-term benefits are increasingly paying attention to the possibilities of nanotechnology. On one hand, insurers see unlimited possibilities of nanotechnology in preventive and repressive activity in relation to losses. The obstacle in this case, for high-tech companies, is stiff competition from companies which are not innovation leaders, but with the necessary influence and power at the international and national market. On the other hand, understanding the reasons for the application of nanotechnology in the conflict prevention activities of the insurer allows him to develop and implement a more flexible strategy for sustainable development of the business.展开更多
Natural gas is currently playing an increasingly significant role in low carbon development,as it provides a credible pathway to meet rising energy demand while emitting fewer greenhouse gases than from using other fo...Natural gas is currently playing an increasingly significant role in low carbon development,as it provides a credible pathway to meet rising energy demand while emitting fewer greenhouse gases than from using other fossil fuels such as coal and oil.In this paper,a log linear trans-log production function model is established to investigate inter-fuel elasticity of substitution between coal,oil,natural gas and electricity in China,Japan and South Korea,respectively.In order to overcome the problem of multicollinearity,the ridge regression approach is therefore adopted to estimate the parameters of the function.Results show elasticity estimates of both coal-gas substitution and coal-electricity substitution to be positive over 1985-2012,suggesting that these two energy input pairs are substitutes at least to some extent.It also reveals that relatively higher substitution possibilities between coal and natural gas,and less opportunities to substitute coal with other fuels in China.In addition,the model results also suggest the elasticities of coal-gas substitution in China are much larger than that in Japan and South Korea,indicating there is higher possibilities of coal-gas substitution in China.展开更多
New Lamu Port infrastructure initiative has potential to improve the economies of East Africa East africa is gearing up to construct a trade lifeline that is set to be one of the largest transport projects in africa. ...New Lamu Port infrastructure initiative has potential to improve the economies of East Africa East africa is gearing up to construct a trade lifeline that is set to be one of the largest transport projects in africa. In early February, Kenya, Ethiopia and south sudan launched construction of展开更多
THE 19th National Congress of the Communist Party of China, held in Beijing on October 18-24, set out the guiding principles for ChinEs major-country diplomacy with Chinese characteristics at the top level. The congre...THE 19th National Congress of the Communist Party of China, held in Beijing on October 18-24, set out the guiding principles for ChinEs major-country diplomacy with Chinese characteristics at the top level. The congress put forward that China will pursue a new form of international relations featuring mutual respect, fairness, justice, and win-win cooperation.展开更多
In this article,mathematical modeling for the evaluation of reliability is studied using two methods.One of the methods,is developed based on possibility theory.The performance of the reliability of the system is of p...In this article,mathematical modeling for the evaluation of reliability is studied using two methods.One of the methods,is developed based on possibility theory.The performance of the reliability of the system is of prime concern.In view of this,the outcomes for the failure are required to evaluate with utmost care.In possibility theory,the reliability information data determined from decision-making experts are subjective.The samemethod is also related to the survival possibilities as against the survival probabilities.The other method is the one that is developed using the concept of approximation of closed interval including the piecewise quadratic fuzzy numbers.In this method,a decision-making expert is not sure of his/her estimates of the reliability parameters.Numerical experiments are performed to illustrate the efficiency of the suggested methods in this research.In the end,the paper is concluded with some future research directions to be explored for the proposed approach.展开更多
China ushers in a new chapter of communication as 5G licenses for commercial use are granted Despite a great deal of information,people still find it hard to imagine how 5G will benefit their lives or the world at lar...China ushers in a new chapter of communication as 5G licenses for commercial use are granted Despite a great deal of information,people still find it hard to imagine how 5G will benefit their lives or the world at large. Some clues can be traced back to 2012.展开更多
The International Monetary Fund (IMF) announced on September 2 that the People’s Bank of China will purchase up to 32 billion Special Drawing Rights (SDRs), or around $50 billion of the IMF notes, as part of the inte...The International Monetary Fund (IMF) announced on September 2 that the People’s Bank of China will purchase up to 32 billion Special Drawing Rights (SDRs), or around $50 billion of the IMF notes, as part of the international effort to ensure the adequacy of the展开更多
In recent years, economic and trade relations between China and Africa have seen rapid development. As Africa’s largest trading partner, China’s trade relations with South Africa, the continent’s most potent econom...In recent years, economic and trade relations between China and Africa have seen rapid development. As Africa’s largest trading partner, China’s trade relations with South Africa, the continent’s most potent economy, are an integral part of this展开更多
2024年日本机床展览会(JIMTOF2024)于2024年11月5~10日在东京Tokyo Big Sight举办,展出面积118540平方米。展会以“技术传承提供无限可能(Technologies passed down to the future offer unlimited possibilities)”为主题。
The German philosopher Walter Benjamin,who died attempting to cross a border to escape persecution,described both the impossibility and the possibilities of translation[1].The impossibility is implicit in the very tit...The German philosopher Walter Benjamin,who died attempting to cross a border to escape persecution,described both the impossibility and the possibilities of translation[1].The impossibility is implicit in the very title of Benjamin's essay,Die Aufgabe desÜbersetzers.The German word Aufgabe can mean"task"or"endeavor"but also a"giving up"or"surrender."展开更多
The dramatic rise in the number of people living in cities has made many environmental and social problems worse.The search for a productive method for disposing of solid waste is the most notable of these problems.Ma...The dramatic rise in the number of people living in cities has made many environmental and social problems worse.The search for a productive method for disposing of solid waste is the most notable of these problems.Many scholars have referred to it as a fuzzy multi-attribute or multi-criteria decision-making problem using various fuzzy set-like approaches because of the inclusion of criteria and anticipated ambiguity.The goal of the current study is to use an innovative methodology to address the expected uncertainties in the problem of solid waste site selection.The characteristics(or sub-attributes)that decision-makers select and the degree of approximation they accept for various options can both be indicators of these uncertainties.To tackle these problems,a novel mathematical structure known as the fuzzy parameterized possibility single valued neutrosophic hypersoft expert set(ρˆ-set),which is initially described,is integrated with a modified version of Sanchez’s method.Following this,an intelligent algorithm is suggested.The steps of the suggested algorithm are explained with an example that explains itself.The compatibility of solid waste management sites and systems is discussed,and rankings are established along with detailed justifications for their viability.This study’s strengths lie in its application of fuzzy parameterization and possibility grading to effectively handle the uncertainties embodied in the parameters’nature and alternative approximations,respectively.It uses specific mathematical formulations to compute the fuzzy parameterized degrees and possibility grades that are missing from the prior literature.It is simpler for the decisionmakers to look at each option separately because the decision is uncertain.Comparing the computed results,it is discovered that they are consistent and dependable because of their preferred properties.展开更多
Pre-reading What is a Deepfake,and how is it created?What are Deepfakes?A Deepfake is a video,image or audio clip that has been created using artificial intelligence.The idea is to make it as realistic as possible.
Wind turbines are continuously exposed to harsh environmental and operational conditions throughout their lifetime,leading to the gradual degradation of their components.If left unaddressed,these degraded components c...Wind turbines are continuously exposed to harsh environmental and operational conditions throughout their lifetime,leading to the gradual degradation of their components.If left unaddressed,these degraded components can adversely affect turbine performance and significantly increase the likelihood of failure.As degradation progresses,the risk of failure escalates,making it essential to implement appropriate risk control measures.One effective risk control method involves performing inspection and monitoring activities that provide valuable insights into the condition of the structure,enabling the formulation of appropriate maintenance strategies based on accurate assessments.Supervisory Control and Data Acquisition(SCADA)systems offer low-resolution condition monitoring data that can be used for fault detection,diagnosis,quantification,prognosis,and maintenance planning.One commonly used method involves predicting power generation using SCADA data and comparing it against measured power generation.Significant discrepancies between predicted and measured values can indicate suboptimal operation,natural aging,or unnatural faults.Various predictive models,including parametric and non-parametric(statistical)approaches,have been proposed for estimating power generation.However,the imperfect nature of these models introduces uncertainties in the predicted power output.Additionally,SCADA monitoring data is prone to uncertainties arising from various sources.The presence of uncertainties from these two sources-imperfect predictive models and imperfect SCADA data-introduces uncertainty in the predicted power generation.This uncertainty complicates the process of determining whether discrepancies between measured and predicted values are significant enough to warrant maintenance actions.Depending on the nature of uncertainty-aleatory,arising from inherent randomness,or epistemic,stemming from incomplete knowledge or limited data-different analytical approaches,like Probabilistic and Possibilistic,can be applied for effective management.Both,Probabilistic and Possibilistic,Approaches offer distinct advantages and limitations.The Possibilistic Approach,rooted in fuzzy set theory,is particularly well suited for addressing epistemic uncertainties,especially those caused by imprecision or sparse statistical information.This makes it especially relevant for applications such as wind turbines,where it is often challenging to construct accurate probability distribution functions for environmental parameters due to limited sensor data from hard-to-access locations.This research focuses on developing a methodology for identifying suboptimal operation in wind turbines by comparing Grid Produced Power(Measured Produced Power)with Predicted Produced Power.To achieve this,the paper introduces a Possibilistic Approach for power prediction that accounts for uncertainties stemming from both model imperfections and measurement errors in SCADA data.The methodology combines machine learning models,used to establish predictive relationships between environmental inputs and power output,with a Possibilistic Framework that represents uncertainty through possibility distribution functions based on fuzzy logic and interval analysis.A real-world case study using operational SCADA data demonstrates the approach,with XGBoost selected as the final predictive model due to its strong accuracy and computational efficiency.展开更多
The problem of multiple attribute decision making under fuzzy linguistic environments, in which decision makers can only provide their preferences （attribute values）in the form of trapezoid fuzzy linguistic variable...The problem of multiple attribute decision making under fuzzy linguistic environments, in which decision makers can only provide their preferences （attribute values）in the form of trapezoid fuzzy linguistic variables（TFLV）, is studied. The formula of the degree of possibility between two TFLVs is defined, and some of its characteristics are studied. Based on the degree of possibility of fuzzy linguistic variables, an approach to ranking the decision alternatives in multiple attribute decision making with TFLV is developed. The trapezoid fuzzy linguistic weighted averaging （TFLWA） operator method is utilized to aggregate the decision information, and then all the alternatives are ranked by comparing the degree of possibility of TFLV. The method can carry out linguistic computation processes easily without loss of linguistic information, and thus makes the decision results reasonable and effective. Finally, the implementation process of the proposed method is illustrated and analyzed by a practical example.展开更多
The But Thap Temple in Bac Ninh province of Viet Nam has two Chinese names,one is Ninh Phuc Temple and the other,an alternative one,Thieu Lam Temple.In the middle of17th century,the Chinese Chuyet Cong and Minh Hanh l...The But Thap Temple in Bac Ninh province of Viet Nam has two Chinese names,one is Ninh Phuc Temple and the other,an alternative one,Thieu Lam Temple.In the middle of17th century,the Chinese Chuyet Cong and Minh Hanh lived and made great contribution to its development.The temple is deeply affected by Chinese culture and the reason for its alˉternative name,the paper argues,is possible related to China’s“North Shao Lin”.展开更多
Heat shock protein 90 (Hsp90) is a major heatshock protein whose functions are necessary for livingorganisms, including both procaryotes and eucaryotes.Human Hsp90 consists of two forms, Hsp90α andHsp90β. Expression...Heat shock protein 90 (Hsp90) is a major heatshock protein whose functions are necessary for livingorganisms, including both procaryotes and eucaryotes.Human Hsp90 consists of two forms, Hsp90α andHsp90β. Expression of Hsp90α appears to be inducible bydifferent stimuli. Adenovirus EIA gene products andtransformation with the H-ras oncogene can induce aselective overexpression of Hsp90α. Hsp90α was展开更多
文摘Magnetic semiconductors have been pursued for over 50 years because they combine two critical components of modern information technology: semiconductors for logic and magnets for memory. Remarkably, boosted by the discovery of ferromagnetism in the (III,Mn)As system two decades ago, magnetic semiconductors have become one of leading material systems which are critical for future applications in energy efficient information technology, quantum computing, and quantum communication. However, after more than a decade of rapid development, the ongoing research in magnetic semiconductors must now face reality:"Is it possible to create magnetic semiconductors that work at room temperature?" To answer this question, great efforts have recently been made in theory and experiments to discover and design new material platforms to host magnetic ions. These recent advances have thus revived our understanding of the field and lifted the field off for a new opportunity.
文摘One effective and proven tool for managing risk is insurance. At the same time, insurers, reinsurers, insurance, and reinsurance brokers in search of the relevant value of their services in the eyes of insured and long-term benefits are increasingly paying attention to the possibilities of nanotechnology. On one hand, insurers see unlimited possibilities of nanotechnology in preventive and repressive activity in relation to losses. The obstacle in this case, for high-tech companies, is stiff competition from companies which are not innovation leaders, but with the necessary influence and power at the international and national market. On the other hand, understanding the reasons for the application of nanotechnology in the conflict prevention activities of the insurer allows him to develop and implement a more flexible strategy for sustainable development of the business.
文摘Natural gas is currently playing an increasingly significant role in low carbon development,as it provides a credible pathway to meet rising energy demand while emitting fewer greenhouse gases than from using other fossil fuels such as coal and oil.In this paper,a log linear trans-log production function model is established to investigate inter-fuel elasticity of substitution between coal,oil,natural gas and electricity in China,Japan and South Korea,respectively.In order to overcome the problem of multicollinearity,the ridge regression approach is therefore adopted to estimate the parameters of the function.Results show elasticity estimates of both coal-gas substitution and coal-electricity substitution to be positive over 1985-2012,suggesting that these two energy input pairs are substitutes at least to some extent.It also reveals that relatively higher substitution possibilities between coal and natural gas,and less opportunities to substitute coal with other fuels in China.In addition,the model results also suggest the elasticities of coal-gas substitution in China are much larger than that in Japan and South Korea,indicating there is higher possibilities of coal-gas substitution in China.
文摘New Lamu Port infrastructure initiative has potential to improve the economies of East Africa East africa is gearing up to construct a trade lifeline that is set to be one of the largest transport projects in africa. In early February, Kenya, Ethiopia and south sudan launched construction of
文摘THE 19th National Congress of the Communist Party of China, held in Beijing on October 18-24, set out the guiding principles for ChinEs major-country diplomacy with Chinese characteristics at the top level. The congress put forward that China will pursue a new form of international relations featuring mutual respect, fairness, justice, and win-win cooperation.
文摘In this article,mathematical modeling for the evaluation of reliability is studied using two methods.One of the methods,is developed based on possibility theory.The performance of the reliability of the system is of prime concern.In view of this,the outcomes for the failure are required to evaluate with utmost care.In possibility theory,the reliability information data determined from decision-making experts are subjective.The samemethod is also related to the survival possibilities as against the survival probabilities.The other method is the one that is developed using the concept of approximation of closed interval including the piecewise quadratic fuzzy numbers.In this method,a decision-making expert is not sure of his/her estimates of the reliability parameters.Numerical experiments are performed to illustrate the efficiency of the suggested methods in this research.In the end,the paper is concluded with some future research directions to be explored for the proposed approach.
文摘China ushers in a new chapter of communication as 5G licenses for commercial use are granted Despite a great deal of information,people still find it hard to imagine how 5G will benefit their lives or the world at large. Some clues can be traced back to 2012.
文摘The International Monetary Fund (IMF) announced on September 2 that the People’s Bank of China will purchase up to 32 billion Special Drawing Rights (SDRs), or around $50 billion of the IMF notes, as part of the international effort to ensure the adequacy of the
文摘In recent years, economic and trade relations between China and Africa have seen rapid development. As Africa’s largest trading partner, China’s trade relations with South Africa, the continent’s most potent economy, are an integral part of this
文摘2024年日本机床展览会(JIMTOF2024)于2024年11月5~10日在东京Tokyo Big Sight举办,展出面积118540平方米。展会以“技术传承提供无限可能(Technologies passed down to the future offer unlimited possibilities)”为主题。
文摘The German philosopher Walter Benjamin,who died attempting to cross a border to escape persecution,described both the impossibility and the possibilities of translation[1].The impossibility is implicit in the very title of Benjamin's essay,Die Aufgabe desÜbersetzers.The German word Aufgabe can mean"task"or"endeavor"but also a"giving up"or"surrender."
文摘The dramatic rise in the number of people living in cities has made many environmental and social problems worse.The search for a productive method for disposing of solid waste is the most notable of these problems.Many scholars have referred to it as a fuzzy multi-attribute or multi-criteria decision-making problem using various fuzzy set-like approaches because of the inclusion of criteria and anticipated ambiguity.The goal of the current study is to use an innovative methodology to address the expected uncertainties in the problem of solid waste site selection.The characteristics(or sub-attributes)that decision-makers select and the degree of approximation they accept for various options can both be indicators of these uncertainties.To tackle these problems,a novel mathematical structure known as the fuzzy parameterized possibility single valued neutrosophic hypersoft expert set(ρˆ-set),which is initially described,is integrated with a modified version of Sanchez’s method.Following this,an intelligent algorithm is suggested.The steps of the suggested algorithm are explained with an example that explains itself.The compatibility of solid waste management sites and systems is discussed,and rankings are established along with detailed justifications for their viability.This study’s strengths lie in its application of fuzzy parameterization and possibility grading to effectively handle the uncertainties embodied in the parameters’nature and alternative approximations,respectively.It uses specific mathematical formulations to compute the fuzzy parameterized degrees and possibility grades that are missing from the prior literature.It is simpler for the decisionmakers to look at each option separately because the decision is uncertain.Comparing the computed results,it is discovered that they are consistent and dependable because of their preferred properties.
文摘Pre-reading What is a Deepfake,and how is it created?What are Deepfakes?A Deepfake is a video,image or audio clip that has been created using artificial intelligence.The idea is to make it as realistic as possible.
文摘Wind turbines are continuously exposed to harsh environmental and operational conditions throughout their lifetime,leading to the gradual degradation of their components.If left unaddressed,these degraded components can adversely affect turbine performance and significantly increase the likelihood of failure.As degradation progresses,the risk of failure escalates,making it essential to implement appropriate risk control measures.One effective risk control method involves performing inspection and monitoring activities that provide valuable insights into the condition of the structure,enabling the formulation of appropriate maintenance strategies based on accurate assessments.Supervisory Control and Data Acquisition(SCADA)systems offer low-resolution condition monitoring data that can be used for fault detection,diagnosis,quantification,prognosis,and maintenance planning.One commonly used method involves predicting power generation using SCADA data and comparing it against measured power generation.Significant discrepancies between predicted and measured values can indicate suboptimal operation,natural aging,or unnatural faults.Various predictive models,including parametric and non-parametric(statistical)approaches,have been proposed for estimating power generation.However,the imperfect nature of these models introduces uncertainties in the predicted power output.Additionally,SCADA monitoring data is prone to uncertainties arising from various sources.The presence of uncertainties from these two sources-imperfect predictive models and imperfect SCADA data-introduces uncertainty in the predicted power generation.This uncertainty complicates the process of determining whether discrepancies between measured and predicted values are significant enough to warrant maintenance actions.Depending on the nature of uncertainty-aleatory,arising from inherent randomness,or epistemic,stemming from incomplete knowledge or limited data-different analytical approaches,like Probabilistic and Possibilistic,can be applied for effective management.Both,Probabilistic and Possibilistic,Approaches offer distinct advantages and limitations.The Possibilistic Approach,rooted in fuzzy set theory,is particularly well suited for addressing epistemic uncertainties,especially those caused by imprecision or sparse statistical information.This makes it especially relevant for applications such as wind turbines,where it is often challenging to construct accurate probability distribution functions for environmental parameters due to limited sensor data from hard-to-access locations.This research focuses on developing a methodology for identifying suboptimal operation in wind turbines by comparing Grid Produced Power(Measured Produced Power)with Predicted Produced Power.To achieve this,the paper introduces a Possibilistic Approach for power prediction that accounts for uncertainties stemming from both model imperfections and measurement errors in SCADA data.The methodology combines machine learning models,used to establish predictive relationships between environmental inputs and power output,with a Possibilistic Framework that represents uncertainty through possibility distribution functions based on fuzzy logic and interval analysis.A real-world case study using operational SCADA data demonstrates the approach,with XGBoost selected as the final predictive model due to its strong accuracy and computational efficiency.
基金2008 Soft Science Program of Jiangsu Science and Technology Department (No.BR2008098)
文摘The problem of multiple attribute decision making under fuzzy linguistic environments, in which decision makers can only provide their preferences （attribute values）in the form of trapezoid fuzzy linguistic variables（TFLV）, is studied. The formula of the degree of possibility between two TFLVs is defined, and some of its characteristics are studied. Based on the degree of possibility of fuzzy linguistic variables, an approach to ranking the decision alternatives in multiple attribute decision making with TFLV is developed. The trapezoid fuzzy linguistic weighted averaging （TFLWA） operator method is utilized to aggregate the decision information, and then all the alternatives are ranked by comparing the degree of possibility of TFLV. The method can carry out linguistic computation processes easily without loss of linguistic information, and thus makes the decision results reasonable and effective. Finally, the implementation process of the proposed method is illustrated and analyzed by a practical example.
文摘The But Thap Temple in Bac Ninh province of Viet Nam has two Chinese names,one is Ninh Phuc Temple and the other,an alternative one,Thieu Lam Temple.In the middle of17th century,the Chinese Chuyet Cong and Minh Hanh lived and made great contribution to its development.The temple is deeply affected by Chinese culture and the reason for its alˉternative name,the paper argues,is possible related to China’s“North Shao Lin”.
文摘Heat shock protein 90 (Hsp90) is a major heatshock protein whose functions are necessary for livingorganisms, including both procaryotes and eucaryotes.Human Hsp90 consists of two forms, Hsp90α andHsp90β. Expression of Hsp90α appears to be inducible bydifferent stimuli. Adenovirus EIA gene products andtransformation with the H-ras oncogene can induce aselective overexpression of Hsp90α. Hsp90α was
