By the means of visual evaluation,the matching degree of nine types of fisherman hats and seven face shapes was studied.The characteristics of hats and faces were parameterized,and the images in which seven kinds of f...By the means of visual evaluation,the matching degree of nine types of fisherman hats and seven face shapes was studied.The characteristics of hats and faces were parameterized,and the images in which seven kinds of faces wore different fisherman hats were processed by Photoshop gray levels.Through a random questionnaire,descriptive analysis,and mean and dispersion analysis,the recommendation table of fisherman hats for different female faces was obtained,and the highly preferred and matching degree types of fisherman hats were obtained.It not only provides reference for virtual hat tests,but also gives references for parameterized hat designs from the collocation aesthetic viewpoint.展开更多
Objective To study the relationship between essential drug list and the provisions on the drug coverage in tertiary hospitals,and put forward the corresponding countermeasures and suggestions for the adjustment of ess...Objective To study the relationship between essential drug list and the provisions on the drug coverage in tertiary hospitals,and put forward the corresponding countermeasures and suggestions for the adjustment of essential drug list and the improvement of relevant policies.Methods Expert consultation and statistical methods were used to classify the drugs in the list of essential drugs according to different diseases.Besides,the matching degree of basic drug allocation and prescription policy was analyzed.Results and Conclusion Among the 685 drugs in the national essential drug list of 2018 edition,453 drugs were used to treat minor illness,accounting for 66.1%of the total number of essential drug list.232 drugs were for serious illness or fatal illness,accounting for 33.9%of the total number of essential drug list.The current essential drug list does not match the national requirements for drug plan coverage in tertiary hospitals,which needs further adjustment and improvement.展开更多
Fault section location of a single-phase grounding fault is affected by the neutral grounding mode of the system, transition resistance, and the blind zone. A fault section locating method based on an amplitude featur...Fault section location of a single-phase grounding fault is affected by the neutral grounding mode of the system, transition resistance, and the blind zone. A fault section locating method based on an amplitude feature and an intelligent distance algorithm is proposed to eliminate the influence of the above factors. By analyzing and comparing the amplitude characteristics of the zero-sequence current transient components at both ends of the healthy section and the faulty section, a distance algorithm with strong abnormal data immune capability is introduced in this paper. The matching degree of the amplitude characteristics at both ends of the feeder section are used as the criterion and by comparing with the set threshold, the faulty section is effectively determined. Finally, simulations using Matlab/Simulink and PSCAD/EMTDC show that the proposed section locating method can locate the faulty section accurately, and is not affected by grounding mode, grounding resistance, or the blind zone.展开更多
In this paper,we propose a novel improved region energy based image fusion rule.The original images are firstly decomposed by using the lifting scheme of wavelet transform into four sub-bands:LL,LH,HL,HH,by studying p...In this paper,we propose a novel improved region energy based image fusion rule.The original images are firstly decomposed by using the lifting scheme of wavelet transform into four sub-bands:LL,LH,HL,HH,by studying principles and characteristics of the wavelet subbands,and we put emphasis on the high frequency subbands.Thus HH,HL,LH sub-bands,which represent three direction of high frequency details,are weighted by different size of three direction Gaussian kernel,then the energy based image fusion rule is applied with a optional size of window,thus the activity level of high frequency subbands are obtained,followed by a local region matching degree in the corresponding direction and resolution,an activity level of low frequency subband is calculated,then perform consistency verification on the selected wavelet coefficients,by doing the inverse wavelet transform the fused image is obtained.The performance of the proposed novel image fusion scheme is conducted and compared with a few existing image fusion algorithm,the experimental results show that the proposed method is an effective multi-focus image fusion algorithm.展开更多
Mobile crowdsensing is a new paradigm with powerful performance for data collection through a large number of smart devices.It is essential to obtain high quality data in crowdsensing campaign.Most of the existing spe...Mobile crowdsensing is a new paradigm with powerful performance for data collection through a large number of smart devices.It is essential to obtain high quality data in crowdsensing campaign.Most of the existing specs ignore users’diversity,focus on solving complicated optimization problem,and consider devices as instances of intelligent software agents which can make reasonable choices on behalf of users.Thus,the efficiency and quality of contributed data cannot be preserved simultaneously.In this paper,we propose a new scheme for improving the quality of contributed data,which recommends tasks to users based on calculated score that jointly take the matching degree and task’s rationality into account.We design QIM as Quality Investigation Mechanism for profiling tasks’rationality and matching degree,which draw on support vector machine(SVM)to learn it from historical data.Our mechanism is validated against the examination in experiment,and the evaluation demonstrates that the QIM mechanism achieves a better performance while improving efficiency E and quality Q at the same time compared with benchmarks.展开更多
The non-linear temperature glide in the supercritical CO_(2) cooling process makes the heat transfer pinch point of heat exchanger show multiplicity,like size,location distribution and quantity,which makes the thermod...The non-linear temperature glide in the supercritical CO_(2) cooling process makes the heat transfer pinch point of heat exchanger show multiplicity,like size,location distribution and quantity,which makes the thermodynamic performance of the CO_(2) transcritical cycle more complex and eventually affects the evaluation of the optimal operating state of the system.Based on the second law of thermodynamics and the constraints of heat transfer pinch,a thermodynamic evaluation method of CO_(2) transcritical heat pump system was proposed according to the degree of temperature matching.The influence mechanism of multi-characteristic change of heat transfer pinch point on temperature matching degree and the effect of temperature matching degree on thermodynamic performance of CO_(2) transcritical heat pump system were discussed.The relationship between temperature matching degree,COP and exergy efficiency of the system was analyzed.It is considered that the change of temperature matching index value can clearly characterize the change trends of COP and exergy efficiency.That is,the smaller the temperature matching degree is,the closer the temperature distribution of heat transfer fluids on both sides of the heat exchanger is to Lorenz cycle,and the greater the COP and exergy efficiency are.Furthermore,by monitoring the outlet temperature of the CO_(2) cooler,which has an essential relationship with the temperature matching degree during the heat exchange process,the deviation between actual and optimal working condition can be judged online,which is beneficial to real-time evaluation of the working state of the system.展开更多
The injection performance of the storage ring is one of the most important factors to consider at a synchrotron radiation facility, especially in the top-up mode. To evaluate the injection performance of the storage r...The injection performance of the storage ring is one of the most important factors to consider at a synchrotron radiation facility, especially in the top-up mode. To evaluate the injection performance of the storage ring at the Shanghai Synchrotron Radiation Facility, we have built a bunch-by-bunch position measuring system based on an oscilloscope Input/Output Controller. Accurate assessment of energy mismatching, distribution of residual oscillation, and angle error of injection kickers can be achieved by this system.展开更多
Linguistic dynamic systems (LDS) are the systems based on computing with words (CW) instead of computing with numbers or symbols. In this paper, LDS are divided into two types: type-I LDS being converted from con...Linguistic dynamic systems (LDS) are the systems based on computing with words (CW) instead of computing with numbers or symbols. In this paper, LDS are divided into two types: type-I LDS being converted from conventional dynamical systems (CDS) by using extension principle and type-II LDS by using fuzzy logic rules. For type-I LDS, the method of endograph is provided to discuss the stabilities of type-I LDS and two cases of stabilities of logistic mappings: one is the states being abstracted and the other is parameters also being abstracted. For type-Ⅱ LDS, the method of degree of match is used to discuss the dynamical behavior of arbitrary initial words under fuzzy rule.展开更多
This article introduces the developing process, the main idea and the method of FBEST (Fuzzy set theory Based Expert System Tool) reasoning mechanism.The method reasonably solves the problem of various inputting way...This article introduces the developing process, the main idea and the method of FBEST (Fuzzy set theory Based Expert System Tool) reasoning mechanism.The method reasonably solves the problem of various inputting ways and proposition reasoning which possesses both fuzziness and randomness in ES.展开更多
基金Teaching Reform Project of Zhejiang Sci-Tech University,China(No.ZX20192001)。
文摘By the means of visual evaluation,the matching degree of nine types of fisherman hats and seven face shapes was studied.The characteristics of hats and faces were parameterized,and the images in which seven kinds of faces wore different fisherman hats were processed by Photoshop gray levels.Through a random questionnaire,descriptive analysis,and mean and dispersion analysis,the recommendation table of fisherman hats for different female faces was obtained,and the highly preferred and matching degree types of fisherman hats were obtained.It not only provides reference for virtual hat tests,but also gives references for parameterized hat designs from the collocation aesthetic viewpoint.
文摘Objective To study the relationship between essential drug list and the provisions on the drug coverage in tertiary hospitals,and put forward the corresponding countermeasures and suggestions for the adjustment of essential drug list and the improvement of relevant policies.Methods Expert consultation and statistical methods were used to classify the drugs in the list of essential drugs according to different diseases.Besides,the matching degree of basic drug allocation and prescription policy was analyzed.Results and Conclusion Among the 685 drugs in the national essential drug list of 2018 edition,453 drugs were used to treat minor illness,accounting for 66.1%of the total number of essential drug list.232 drugs were for serious illness or fatal illness,accounting for 33.9%of the total number of essential drug list.The current essential drug list does not match the national requirements for drug plan coverage in tertiary hospitals,which needs further adjustment and improvement.
基金supporting by the National Natural Science Foundation of China(52077120)Research Fund for Excellent Dissertation of China Three Gorges University(2021SSPY056).
文摘Fault section location of a single-phase grounding fault is affected by the neutral grounding mode of the system, transition resistance, and the blind zone. A fault section locating method based on an amplitude feature and an intelligent distance algorithm is proposed to eliminate the influence of the above factors. By analyzing and comparing the amplitude characteristics of the zero-sequence current transient components at both ends of the healthy section and the faulty section, a distance algorithm with strong abnormal data immune capability is introduced in this paper. The matching degree of the amplitude characteristics at both ends of the feeder section are used as the criterion and by comparing with the set threshold, the faulty section is effectively determined. Finally, simulations using Matlab/Simulink and PSCAD/EMTDC show that the proposed section locating method can locate the faulty section accurately, and is not affected by grounding mode, grounding resistance, or the blind zone.
基金Sponsored by the National Natural Science Foundation of China(Grant No.61077079)the Ph.D.Programs Foundation of Ministry of Education of China(Grant No.20102304110013)+1 种基金the Key Program of Heilongjiang Natural Science Foundation(Grant No.ZD201216)the Program ExcellentAcademic Leaders of Harbin(Grant No.RC2013XK009003)
文摘In this paper,we propose a novel improved region energy based image fusion rule.The original images are firstly decomposed by using the lifting scheme of wavelet transform into four sub-bands:LL,LH,HL,HH,by studying principles and characteristics of the wavelet subbands,and we put emphasis on the high frequency subbands.Thus HH,HL,LH sub-bands,which represent three direction of high frequency details,are weighted by different size of three direction Gaussian kernel,then the energy based image fusion rule is applied with a optional size of window,thus the activity level of high frequency subbands are obtained,followed by a local region matching degree in the corresponding direction and resolution,an activity level of low frequency subband is calculated,then perform consistency verification on the selected wavelet coefficients,by doing the inverse wavelet transform the fused image is obtained.The performance of the proposed novel image fusion scheme is conducted and compared with a few existing image fusion algorithm,the experimental results show that the proposed method is an effective multi-focus image fusion algorithm.
基金This work was supported in part by the National Science Foundation of China under Grant 61572526.
文摘Mobile crowdsensing is a new paradigm with powerful performance for data collection through a large number of smart devices.It is essential to obtain high quality data in crowdsensing campaign.Most of the existing specs ignore users’diversity,focus on solving complicated optimization problem,and consider devices as instances of intelligent software agents which can make reasonable choices on behalf of users.Thus,the efficiency and quality of contributed data cannot be preserved simultaneously.In this paper,we propose a new scheme for improving the quality of contributed data,which recommends tasks to users based on calculated score that jointly take the matching degree and task’s rationality into account.We design QIM as Quality Investigation Mechanism for profiling tasks’rationality and matching degree,which draw on support vector machine(SVM)to learn it from historical data.Our mechanism is validated against the examination in experiment,and the evaluation demonstrates that the QIM mechanism achieves a better performance while improving efficiency E and quality Q at the same time compared with benchmarks.
基金supported by the Natural Sciences Foundation of China(No.U1304521,51876055,51706060,51706061)Key Science and Technology Projects of Henan Province(212102210242)。
文摘The non-linear temperature glide in the supercritical CO_(2) cooling process makes the heat transfer pinch point of heat exchanger show multiplicity,like size,location distribution and quantity,which makes the thermodynamic performance of the CO_(2) transcritical cycle more complex and eventually affects the evaluation of the optimal operating state of the system.Based on the second law of thermodynamics and the constraints of heat transfer pinch,a thermodynamic evaluation method of CO_(2) transcritical heat pump system was proposed according to the degree of temperature matching.The influence mechanism of multi-characteristic change of heat transfer pinch point on temperature matching degree and the effect of temperature matching degree on thermodynamic performance of CO_(2) transcritical heat pump system were discussed.The relationship between temperature matching degree,COP and exergy efficiency of the system was analyzed.It is considered that the change of temperature matching index value can clearly characterize the change trends of COP and exergy efficiency.That is,the smaller the temperature matching degree is,the closer the temperature distribution of heat transfer fluids on both sides of the heat exchanger is to Lorenz cycle,and the greater the COP and exergy efficiency are.Furthermore,by monitoring the outlet temperature of the CO_(2) cooler,which has an essential relationship with the temperature matching degree during the heat exchange process,the deviation between actual and optimal working condition can be judged online,which is beneficial to real-time evaluation of the working state of the system.
基金Supported by National Natural Science Foundation of China(11375255)
文摘The injection performance of the storage ring is one of the most important factors to consider at a synchrotron radiation facility, especially in the top-up mode. To evaluate the injection performance of the storage ring at the Shanghai Synchrotron Radiation Facility, we have built a bunch-by-bunch position measuring system based on an oscilloscope Input/Output Controller. Accurate assessment of energy mismatching, distribution of residual oscillation, and angle error of injection kickers can be achieved by this system.
基金Supported by the National Natural Science Foundation of China (Grant Nos. 60125310, 60474498)
文摘Linguistic dynamic systems (LDS) are the systems based on computing with words (CW) instead of computing with numbers or symbols. In this paper, LDS are divided into two types: type-I LDS being converted from conventional dynamical systems (CDS) by using extension principle and type-II LDS by using fuzzy logic rules. For type-I LDS, the method of endograph is provided to discuss the stabilities of type-I LDS and two cases of stabilities of logistic mappings: one is the states being abstracted and the other is parameters also being abstracted. For type-Ⅱ LDS, the method of degree of match is used to discuss the dynamical behavior of arbitrary initial words under fuzzy rule.
文摘This article introduces the developing process, the main idea and the method of FBEST (Fuzzy set theory Based Expert System Tool) reasoning mechanism.The method reasonably solves the problem of various inputting ways and proposition reasoning which possesses both fuzziness and randomness in ES.