Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and ignorance of the relationship among evaluating objects, a new weight evaluation process using entropy method w...Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and ignorance of the relationship among evaluating objects, a new weight evaluation process using entropy method was introduced. This improved method for determination of weight of the evaluating indicators was applied in water quality assessment of the Three Gorges reservoir area. The results showed that this method was favorable for fuzzy synthetic evaluation when there were more than one evaluating objects. One calculation was enough for calculating every monitoring point. Compared with the original evaluation method, the method predigested the fuzzy synthetic evaluation process greatly and the evaluation results are more reasonable.展开更多
Reducing raw materials consumption(RMC)in electric arc furnace(EAF)steelmaking process is beneficial to the reduction in resource and energy consumption.The conventional indicator of evaluating RMC only focuses on EAF...Reducing raw materials consumption(RMC)in electric arc furnace(EAF)steelmaking process is beneficial to the reduction in resource and energy consumption.The conventional indicator of evaluating RMC only focuses on EAF inputs and outputs,neglecting the associations between smelting operations and RMC.Traditional methods of reducing RMC rely on manual experience and lack a standard operation guidance.A method based on association rules mining and metallurgical mechanism(ARM-MM)was proposed.ARM-MM proposed an improved evaluation indicator of RMC and the indicator independently showed the associations between smelting operations and RMC.On the basis,1265 heats of real EAF data were used to obtain the operation guidance for RMC reduction.According to the ratio of hot metal(HM)in charge metals,data were divided into all dataset,low HM ratio dataset,medium HM ratio dataset,and high HM ratio dataset.ARM algorithm was used in each dataset to obtain specific operation guidance.The real average RMC under all dataset,medium HM ratio dataset,and high HM ratio dataset was reduced by 279,486,and 252 kg/heat,respectively,when obtained operation guidance was applied.展开更多
This paper focuses on the procurement of construction projects in universities,conducting research on the influencing factors of procurement risks in such projects.By combining questionnaire surveys with expert interv...This paper focuses on the procurement of construction projects in universities,conducting research on the influencing factors of procurement risks in such projects.By combining questionnaire surveys with expert interviews,numerous factors affecting procurement are analyzed.Subsequently,these factors are refined and summarized to construct a procurement risk evaluation index system for construction projects,which includes three first-level indicators,such as process management risk and ethical/legal risk,and is further subdivided into 13 second-level indicators.展开更多
Objective To study a way to establish a drug inspection evaluation system in China.Methods Through literature research,behavioral event interviews,Delphi expert interviews,and other methods,the theory of“threedimensi...Objective To study a way to establish a drug inspection evaluation system in China.Methods Through literature research,behavioral event interviews,Delphi expert interviews,and other methods,the theory of“threedimensional quality structure model”was used to extract,screen,and construct a set of evaluation indicator system for drug inspection,including 3 first-level indicators,11 second-level indicators,and 47 third-level indicators.Results and Conclusion An effective management tool to evaluate the quality of drug inspection has not yet been formed in China.According to the requirements of laws,regulations,and departmental rules,combined with the mature drug inspection mechanism of international drug regulatory agencies or organizations and the international quality management theory,some management tools are put forward to improve the quality system of drug supervision.展开更多
With the development of society,more and more cities are participating in the initiative to build learning cities.Constructing an evaluation indicator system for learning cities to monitor the progress and promote the...With the development of society,more and more cities are participating in the initiative to build learning cities.Constructing an evaluation indicator system for learning cities to monitor the progress and promote their growth has become increasingly important.This paper analyzes the preliminary framework of the UNESCO Global Learning City Index and R3L+Quality Framework.The comparison is made from the aspects of design philosophy,criteria of indicator,and the cycle of evaluation process.The findings suggest that the construction of an evaluation indicator system should be focused more on the diversity of learning city development,the construction of an evaluation process cycle,and the significance of building cooperative networks.展开更多
Analysis on the investigation and evaluation data of afforestation space suitability in Nanyang City reveals that there are a total of 47,394 issued land parcels,covering an area of 102,400 hm^(2).Among these,20,834 p...Analysis on the investigation and evaluation data of afforestation space suitability in Nanyang City reveals that there are a total of 47,394 issued land parcels,covering an area of 102,400 hm^(2).Among these,20,834 parcels are suitable for afforestation with an area of 35,300 hm^(2),while 7,220 parcels are planned for afforestation but not yet implemented,covering an area of 19,900 hm^(2).Additionally,there are 26,560 parcels classified as unsuitable for afforestation with an area of 67,100 hm^(2).There are also 13,614 parcels,with an area of 15,400 hm^(2),that meet the criteria for afforestation space but have not been included in the planning.In view of discrepancies in land type classification or being outside the original evaluation scope in the investigation of afforestation space suitability evaluation,corresponding recommendations have been proposed to provide valuable references for scientifically formulating territorial greening plans and reasonably reserving afforestation space.展开更多
The intellectual property protection, whether judicial or administrative, is evaluated through a performance evaluation indicator system. To building up such a system, we must follow certain working procedures which u...The intellectual property protection, whether judicial or administrative, is evaluated through a performance evaluation indicator system. To building up such a system, we must follow certain working procedures which usually consist of four steps： to determine the performance objectives, to design the structure of indicator system, to specify the indicators and to set up the weight of indicators. Each step plays a different role in performance evaluation indicator system and has its own impact on the realization of performance evaluation objectives respectively. So the scientifically building up a performance evaluation indicator system is the key to determine whether the intellectual property is protected well or not.展开更多
A set of evaluation indicators based on corrosion ratio in theory for assessing the extent of pitting corrosion and performance reduction are proposed. In order to quantify the morphology of pitting corrosion and extr...A set of evaluation indicators based on corrosion ratio in theory for assessing the extent of pitting corrosion and performance reduction are proposed. In order to quantify the morphology of pitting corrosion and extract the evaluation indicators,the 3D profile data obtained by pitting morphology measurement are imported into a special written program to automatically determine the location of each corrosion pit and distill any desired data pertinent to the pitting morphology. The results show that this method seems to be effective to analyze the corroded surface and characterize the pitting morphology.展开更多
Objective： By constructing a training system of quality evaluation standards for emergency nurse specialist（ENS）, we can ensure smooth operations and quality training for ENS.Methods： First, the frame structure of...Objective： By constructing a training system of quality evaluation standards for emergency nurse specialist（ENS）, we can ensure smooth operations and quality training for ENS.Methods： First, the frame structure of indicators was designed on the basis of system theory and the balanced scorecard method. Meanwhile, corresponding quantitative standard indicators were compiled through literature analysis and a review of training characteristics. Next, screening indicators were collected through consultation with experts and statistical calculations. The indicators weight coefficient was calculated using the analytic hierarchy process（AHP）. Finally, indicators were validated in two groups of nurses in two different training courses.Results：（1） We created a three-level indicator system： level-Ⅰ dimensions have 4 indicators, while level-Ⅱ dimensions and level-Ⅲ dimensions have 13 and 34 indicators, respectively;（2） The coefficient of expert＇s judgment is 0.840, familiarity is 0.914 and authority is 0.877, and the three rounds of coordination coefficient are 0.456, 0.553 and 0.715, respectively;（3） There are at least 56 indicators in alternative quantitative standards; and（4） The alpha reliability value of the indicator system in the two training course had no significant difference（P 〉 0.05）. The same result was observed when examining two groups of nurses in one training course（P 〉 0.05）.Conclusions： This study established a training system of quality evaluation standards for emergency nurse specialists that is objective, reliable, easy to operate and representative according to scientific selection and verification. This system can therefore provide a basis for quality evaluation and targeted improvement for ENS training in addition to promoting health.展开更多
The aim of this study was to establish a scientific evaluation system for fruit radish quality. 8 quality indicators were measured for23 varieties,such as Meinong,Qiaotouqing and Chunbulao. The indicators included roo...The aim of this study was to establish a scientific evaluation system for fruit radish quality. 8 quality indicators were measured for23 varieties,such as Meinong,Qiaotouqing and Chunbulao. The indicators included root weight,root shape index,water content,crispness,soluble solids,crude fiber,isothiocyanate and vitamin C. These data were analyzed by variation correlation analysis,principal component analysis and system cluster analysis. 23 varieties of fruit radish were analyzed by variation correlation; 8 indicators were compressed into 6 integrated variables using principal component analysis. Finally,the main evaluation indicators of fruit radish were determined by using cluster analysis and correlation analysis. The results indicated that the range of variation coefficient was from 1. 64%-89. 99%. Water content,crispness,soluble solids,crude fiber,isothiocyanate were the important components of fruit radish quality,playing a major role in the quality. These 8indicators were closely related and relatively independent. Water content was significantly and positively correlated with crispness; soluble solids and crude fiber were significantly and negatively related to vitamin C; crispness was significantly and positively correlated with crude fiber and vitamin C. Based on the above results,4 representative indicators were used for evaluating fruit radish quality,that is water content,crispness,soluble solids,crude fiber,which could reflect the most information of fruit radish quality.展开更多
Environmental protection products and equipment are important substance basis and insurance which provide supporting for to the realization of the strategic objective of reduced energy use and emissions while improvin...Environmental protection products and equipment are important substance basis and insurance which provide supporting for to the realization of the strategic objective of reduced energy use and emissions while improving the resource economy ＆ environmental kindly society building, as well as the sustainable development economy and environment in a sustainable fashion. Here, the framework of the standards system and evaluation indicators system for environmental protection products are described based on the present deficiencies in independent innovation, lower levels of standardization, and poor operating effectiveness of such equipment in China with a goal of forcing the development of standardization, seriation and currency used in the environmental protection industry. The results presented here should serve as a reference for the promotion of quality and effectiveness in environmental protection products and equipments.展开更多
Objective:The Delphi method was used to propose health effect evaluation indicators to assess foods for special medical purposes(FSMPs).This lays the foundation for the formation of a big data model for human health t...Objective:The Delphi method was used to propose health effect evaluation indicators to assess foods for special medical purposes(FSMPs).This lays the foundation for the formation of a big data model for human health testing,as well as a big data platform for the health and safety evaluation of special medical foods.Methods:The Delphi method was used to conduct two rounds of expert consultation on the constructed FSMP health effect evaluation indicators.Results:Ten major items were identified after two rounds of expert consultation.Among these,there were 10 primary entries,32 secondary entries,50 tertiary entries,and 28 quaternary entries.Conclusion:The complete list of evaluation indicators contains 10 entries,which can comprehensively and systematically monitor adverse reactions to the use of FSMPs.The present findings lay the foundation for a big data platform to evaluate the health and safety of special foods.展开更多
Based on our theoretical studies and practical experience related to the digital resource evaluation activities,which were undertaken jointly by CALIS and Peking University Library,this paper discusses the targeted ob...Based on our theoretical studies and practical experience related to the digital resource evaluation activities,which were undertaken jointly by CALIS and Peking University Library,this paper discusses the targeted object,content,the structure and the attributes of CALIS evaluation indicator system for digital resources.We also offer a detailed guideline for professional practice in terms of using this particular indicator system to evaluate the viability and the collection strength of a given digital library.展开更多
To comprehensively assess the current state-of-art in asphalt foaming technology, the following four key aspectshave been reviewed systematically: foaming principles, test methods, evaluation indicators, and influenci...To comprehensively assess the current state-of-art in asphalt foaming technology, the following four key aspectshave been reviewed systematically: foaming principles, test methods, evaluation indicators, and influencing factors.Key findings reveal that asphalt foaming was primarily driven by the vaporization of water, with deteriorationprocesses including bubble collapse and liquid film drainage. However, the current understanding of asphaltfoaming principles remains limited, primarily due to difficulties in capturing and precisely measuring its microscopic behaviors during asphalt foaming process. Volume changes provided an intuitive means to evaluate theexpansion capacity of asphalt and its foaming stability. Bubble evolution characteristics of foamed asphalt offeredpromising insights into its foaming performance. Traditional ruler and stopwatch-based assessments were beingsuperseded by automated techniques like laser and ultrasonic ranging. Nevertheless, the current measuringequipment still lacks the capability to comprehensively evaluate the foaming effect of asphalt across various dimensions. Asphalt temperature and foaming water consumption significantly affected asphalt foaming performance, and the inclusion of foaming agents typically led to a notable increase in the half life of foamed asphalt.However, the interaction between foaming agents and asphalt, as well as the underlying mechanisms affecting thefoaming effect, are still unclear and require further exploration. Future research should primarily focus on thecorrelation between asphalt foaming effect and mixture performance, aiming to guide the practical engineeringapplication of foamed asphalt mixtures and enlarge the advantages of such low-emission and sustainable mixtures.展开更多
The technological revolution has spawned a new generation of industrial systems,but it has also put forward higher requirements for safety management accuracy,timeliness,and systematicness.Risk assessment needs to evo...The technological revolution has spawned a new generation of industrial systems,but it has also put forward higher requirements for safety management accuracy,timeliness,and systematicness.Risk assessment needs to evolve to address the existing and future challenges by considering the new demands and advancements in safety management.The study aims to propose a systematic and comprehensive risk assessment method to meet the needs of process system safety management.The methodology first incorporates possibility,severity,and dynamicity(PSD)to structure the“51X”evaluation indicator system,including the inherent,management,and disturbance risk factors.Subsequently,the four-tier(risk point-unit-enterprise-region)risk assessment(RA)mathematical model has been established to consider supervision needs.And in conclusion,the application of the PSD-RA method in ammonia refrigeration workshop cases and safety risk monitoring systems is presented to illustrate the feasibility and effectiveness of the proposed PSD-RA method in safety management.The findings show that the PSD-RA method can be well integrated with the needs of safety work informatization,which is also helpful for implementing the enterprise's safety work responsibility and the government's safety supervision responsibility.展开更多
The selection of chemical reactions is directly related to the quality of synthesis pathways,so a reasonable reaction evaluation metric plays a crucial role in the design and planning of synthesis pathways.Since react...The selection of chemical reactions is directly related to the quality of synthesis pathways,so a reasonable reaction evaluation metric plays a crucial role in the design and planning of synthesis pathways.Since reaction conditions also need to be considered in synthesis pathway design,a reaction metric that combines reaction time,temperature,and yield is required for chemical reactions of different reaction agents.In this study,a chemical reaction graph descriptor which includes the atom-atom mapping relationship is proposed to effectively describe reactions.Then,through pre-training using graph contrastive learning and fine-tuning through supervised learning,we establish a model for generating the probability of reaction superiority(RSscore).Finally,to validate the effectiveness of the current evaluation index,RSscore is applied in two applications,namely reaction evaluation and synthesis routes analysis,which proves that the RSscore provides an important agents-considered evaluation criterion for computer-aided synthesis planning(CASP).展开更多
To effectively quantify the impact of distributed photovoltaic(PV)access on the distribution network,this paper proposes a comprehensive evaluation method of distributed PV grid connection combining subjective and obj...To effectively quantify the impact of distributed photovoltaic(PV)access on the distribution network,this paper proposes a comprehensive evaluation method of distributed PV grid connection combining subjective and objective combination of assignment and technique for order preference by similarity to an ideal solution(TOPSIS)—rank sum ratio(RSR)(TOPSIS-RSR)method.Based on the traditional distribution network evaluation system,a comprehensive evaluation system has been constructed.It fully considers the new development requirements of distributed PV access on the environmental friendliness and absorptive capacity of the distribution grid and comprehensively reflects the impact of distributed PV grid connection.The analytic hierarchy process(AHP)was used to determine the subjective weights of the primary indicators,and the Spearman consistency test was combined to determine the weights of the secondary indicators based on three objective assignment methods.The subjective and objective combination weights of each assessment indicator were calculated through the principle of minimum entropy.Calculate the distance between the indicators to be evaluated and the positive and negative ideal solutions,the relative closeness ranking,and qualitative binning by TOPSIS-RSR method to obtain the comprehensive evaluation results of different scenarios.By setting up different PV grid-connected scenarios and utilizing the IEEE33 node simulation algorithm,the correctness and effectiveness of the proposed subject-object combination assignment and integrated assessment method are verified.展开更多
To improve the mixing efficiency in water purification or wastewater treatment process and understand the mechanism of mass transfer,and a suitable evaluation factor is introduced to evaluate the efficiency of mixing ...To improve the mixing efficiency in water purification or wastewater treatment process and understand the mechanism of mass transfer,and a suitable evaluation factor is introduced to evaluate the efficiency of mixing process.The diffusion mass transfer under turbulent condition is investigated based on dynamic and mathematical analysis.The results indicate that submicroscopic diffusion is the rate-limiting step in mass transfer,and the inertia effect of micro vortex causes the phase mixing.An excellent efficiency can be obtained by controlling the scale of micro vortex within millimeter.Furthermore,a new indicator named mixing factor(IH)is proposed to evaluate the efficiency of mixing processes,which is more feasible than conventional evaluation methods,because of its connection of mixing extent with energy consumption.展开更多
基金The National Natural Science Foundation of China (No. 50378008)
文摘Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and ignorance of the relationship among evaluating objects, a new weight evaluation process using entropy method was introduced. This improved method for determination of weight of the evaluating indicators was applied in water quality assessment of the Three Gorges reservoir area. The results showed that this method was favorable for fuzzy synthetic evaluation when there were more than one evaluating objects. One calculation was enough for calculating every monitoring point. Compared with the original evaluation method, the method predigested the fuzzy synthetic evaluation process greatly and the evaluation results are more reasonable.
基金supported by National Natural Science Foundation of China(Nos.52174328 and 52474368)Fundamental Research Funds for Central Universities of Central South University(Nos.2022ZZTS0084 and 2024ZZTS0062).
文摘Reducing raw materials consumption(RMC)in electric arc furnace(EAF)steelmaking process is beneficial to the reduction in resource and energy consumption.The conventional indicator of evaluating RMC only focuses on EAF inputs and outputs,neglecting the associations between smelting operations and RMC.Traditional methods of reducing RMC rely on manual experience and lack a standard operation guidance.A method based on association rules mining and metallurgical mechanism(ARM-MM)was proposed.ARM-MM proposed an improved evaluation indicator of RMC and the indicator independently showed the associations between smelting operations and RMC.On the basis,1265 heats of real EAF data were used to obtain the operation guidance for RMC reduction.According to the ratio of hot metal(HM)in charge metals,data were divided into all dataset,low HM ratio dataset,medium HM ratio dataset,and high HM ratio dataset.ARM algorithm was used in each dataset to obtain specific operation guidance.The real average RMC under all dataset,medium HM ratio dataset,and high HM ratio dataset was reduced by 279,486,and 252 kg/heat,respectively,when obtained operation guidance was applied.
文摘This paper focuses on the procurement of construction projects in universities,conducting research on the influencing factors of procurement risks in such projects.By combining questionnaire surveys with expert interviews,numerous factors affecting procurement are analyzed.Subsequently,these factors are refined and summarized to construct a procurement risk evaluation index system for construction projects,which includes three first-level indicators,such as process management risk and ethical/legal risk,and is further subdivided into 13 second-level indicators.
文摘Objective To study a way to establish a drug inspection evaluation system in China.Methods Through literature research,behavioral event interviews,Delphi expert interviews,and other methods,the theory of“threedimensional quality structure model”was used to extract,screen,and construct a set of evaluation indicator system for drug inspection,including 3 first-level indicators,11 second-level indicators,and 47 third-level indicators.Results and Conclusion An effective management tool to evaluate the quality of drug inspection has not yet been formed in China.According to the requirements of laws,regulations,and departmental rules,combined with the mature drug inspection mechanism of international drug regulatory agencies or organizations and the international quality management theory,some management tools are put forward to improve the quality system of drug supervision.
文摘With the development of society,more and more cities are participating in the initiative to build learning cities.Constructing an evaluation indicator system for learning cities to monitor the progress and promote their growth has become increasingly important.This paper analyzes the preliminary framework of the UNESCO Global Learning City Index and R3L+Quality Framework.The comparison is made from the aspects of design philosophy,criteria of indicator,and the cycle of evaluation process.The findings suggest that the construction of an evaluation indicator system should be focused more on the diversity of learning city development,the construction of an evaluation process cycle,and the significance of building cooperative networks.
文摘Analysis on the investigation and evaluation data of afforestation space suitability in Nanyang City reveals that there are a total of 47,394 issued land parcels,covering an area of 102,400 hm^(2).Among these,20,834 parcels are suitable for afforestation with an area of 35,300 hm^(2),while 7,220 parcels are planned for afforestation but not yet implemented,covering an area of 19,900 hm^(2).Additionally,there are 26,560 parcels classified as unsuitable for afforestation with an area of 67,100 hm^(2).There are also 13,614 parcels,with an area of 15,400 hm^(2),that meet the criteria for afforestation space but have not been included in the planning.In view of discrepancies in land type classification or being outside the original evaluation scope in the investigation of afforestation space suitability evaluation,corresponding recommendations have been proposed to provide valuable references for scientifically formulating territorial greening plans and reasonably reserving afforestation space.
文摘The intellectual property protection, whether judicial or administrative, is evaluated through a performance evaluation indicator system. To building up such a system, we must follow certain working procedures which usually consist of four steps： to determine the performance objectives, to design the structure of indicator system, to specify the indicators and to set up the weight of indicators. Each step plays a different role in performance evaluation indicator system and has its own impact on the realization of performance evaluation objectives respectively. So the scientifically building up a performance evaluation indicator system is the key to determine whether the intellectual property is protected well or not.
基金Sponsored by the National Natural Science Foundation of China(Grant No.51378417)Program for Changjiang Scholars and Innovative Research Team in University(IRT13089)PhD Innovation Fund of Xi'an University of Architecture and Technology
文摘A set of evaluation indicators based on corrosion ratio in theory for assessing the extent of pitting corrosion and performance reduction are proposed. In order to quantify the morphology of pitting corrosion and extract the evaluation indicators,the 3D profile data obtained by pitting morphology measurement are imported into a special written program to automatically determine the location of each corrosion pit and distill any desired data pertinent to the pitting morphology. The results show that this method seems to be effective to analyze the corroded surface and characterize the pitting morphology.
基金supported by the nursing special items of Health and Family Planning Commission Research Fund in Hubei province(No.HL2012-15)
文摘Objective： By constructing a training system of quality evaluation standards for emergency nurse specialist（ENS）, we can ensure smooth operations and quality training for ENS.Methods： First, the frame structure of indicators was designed on the basis of system theory and the balanced scorecard method. Meanwhile, corresponding quantitative standard indicators were compiled through literature analysis and a review of training characteristics. Next, screening indicators were collected through consultation with experts and statistical calculations. The indicators weight coefficient was calculated using the analytic hierarchy process（AHP）. Finally, indicators were validated in two groups of nurses in two different training courses.Results：（1） We created a three-level indicator system： level-Ⅰ dimensions have 4 indicators, while level-Ⅱ dimensions and level-Ⅲ dimensions have 13 and 34 indicators, respectively;（2） The coefficient of expert＇s judgment is 0.840, familiarity is 0.914 and authority is 0.877, and the three rounds of coordination coefficient are 0.456, 0.553 and 0.715, respectively;（3） There are at least 56 indicators in alternative quantitative standards; and（4） The alpha reliability value of the indicator system in the two training course had no significant difference（P 〉 0.05）. The same result was observed when examining two groups of nurses in one training course（P 〉 0.05）.Conclusions： This study established a training system of quality evaluation standards for emergency nurse specialists that is objective, reliable, easy to operate and representative according to scientific selection and verification. This system can therefore provide a basis for quality evaluation and targeted improvement for ENS training in addition to promoting health.
基金Supported by the Second Modern Agricultural Industry Technology System Project in Hubei Province
文摘The aim of this study was to establish a scientific evaluation system for fruit radish quality. 8 quality indicators were measured for23 varieties,such as Meinong,Qiaotouqing and Chunbulao. The indicators included root weight,root shape index,water content,crispness,soluble solids,crude fiber,isothiocyanate and vitamin C. These data were analyzed by variation correlation analysis,principal component analysis and system cluster analysis. 23 varieties of fruit radish were analyzed by variation correlation; 8 indicators were compressed into 6 integrated variables using principal component analysis. Finally,the main evaluation indicators of fruit radish were determined by using cluster analysis and correlation analysis. The results indicated that the range of variation coefficient was from 1. 64%-89. 99%. Water content,crispness,soluble solids,crude fiber,isothiocyanate were the important components of fruit radish quality,playing a major role in the quality. These 8indicators were closely related and relatively independent. Water content was significantly and positively correlated with crispness; soluble solids and crude fiber were significantly and negatively related to vitamin C; crispness was significantly and positively correlated with crude fiber and vitamin C. Based on the above results,4 representative indicators were used for evaluating fruit radish quality,that is water content,crispness,soluble solids,crude fiber,which could reflect the most information of fruit radish quality.
文摘Environmental protection products and equipment are important substance basis and insurance which provide supporting for to the realization of the strategic objective of reduced energy use and emissions while improving the resource economy ＆ environmental kindly society building, as well as the sustainable development economy and environment in a sustainable fashion. Here, the framework of the standards system and evaluation indicators system for environmental protection products are described based on the present deficiencies in independent innovation, lower levels of standardization, and poor operating effectiveness of such equipment in China with a goal of forcing the development of standardization, seriation and currency used in the environmental protection industry. The results presented here should serve as a reference for the promotion of quality and effectiveness in environmental protection products and equipments.
基金This research was supported by the National Key Research and Development Program of China(2019YFC1606400).
文摘Objective:The Delphi method was used to propose health effect evaluation indicators to assess foods for special medical purposes(FSMPs).This lays the foundation for the formation of a big data model for human health testing,as well as a big data platform for the health and safety evaluation of special medical foods.Methods:The Delphi method was used to conduct two rounds of expert consultation on the constructed FSMP health effect evaluation indicators.Results:Ten major items were identified after two rounds of expert consultation.Among these,there were 10 primary entries,32 secondary entries,50 tertiary entries,and 28 quaternary entries.Conclusion:The complete list of evaluation indicators contains 10 entries,which can comprehensively and systematically monitor adverse reactions to the use of FSMPs.The present findings lay the foundation for a big data platform to evaluate the health and safety of special foods.
文摘Based on our theoretical studies and practical experience related to the digital resource evaluation activities,which were undertaken jointly by CALIS and Peking University Library,this paper discusses the targeted object,content,the structure and the attributes of CALIS evaluation indicator system for digital resources.We also offer a detailed guideline for professional practice in terms of using this particular indicator system to evaluate the viability and the collection strength of a given digital library.
基金the National Natural Science Foundation of China(Grant No.52378452)Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX23_1193)+1 种基金Nanjing Transportation Science and Technology Project(JSZC-320100-HBGLC2023-0037)Nantong Highway Development Center Science and Technology Project(2022PMLQYJ)and 333 High-level Talent Project of Jiangsu Province(6th).
文摘To comprehensively assess the current state-of-art in asphalt foaming technology, the following four key aspectshave been reviewed systematically: foaming principles, test methods, evaluation indicators, and influencing factors.Key findings reveal that asphalt foaming was primarily driven by the vaporization of water, with deteriorationprocesses including bubble collapse and liquid film drainage. However, the current understanding of asphaltfoaming principles remains limited, primarily due to difficulties in capturing and precisely measuring its microscopic behaviors during asphalt foaming process. Volume changes provided an intuitive means to evaluate theexpansion capacity of asphalt and its foaming stability. Bubble evolution characteristics of foamed asphalt offeredpromising insights into its foaming performance. Traditional ruler and stopwatch-based assessments were beingsuperseded by automated techniques like laser and ultrasonic ranging. Nevertheless, the current measuringequipment still lacks the capability to comprehensively evaluate the foaming effect of asphalt across various dimensions. Asphalt temperature and foaming water consumption significantly affected asphalt foaming performance, and the inclusion of foaming agents typically led to a notable increase in the half life of foamed asphalt.However, the interaction between foaming agents and asphalt, as well as the underlying mechanisms affecting thefoaming effect, are still unclear and require further exploration. Future research should primarily focus on thecorrelation between asphalt foaming effect and mixture performance, aiming to guide the practical engineeringapplication of foamed asphalt mixtures and enlarge the advantages of such low-emission and sustainable mixtures.
基金key technology project for the prevention and control of major workplace safety accidents in 2017 from the State Administration of Work Safety of China-the research on the identification and assessment technology and control system of major risks of enterprises for the prevention and control of severe accidents(Hubei-0002-2017AQ)supported by the Department of Emergency Management of Hubei Province,Wuhan 430064,China.
文摘The technological revolution has spawned a new generation of industrial systems,but it has also put forward higher requirements for safety management accuracy,timeliness,and systematicness.Risk assessment needs to evolve to address the existing and future challenges by considering the new demands and advancements in safety management.The study aims to propose a systematic and comprehensive risk assessment method to meet the needs of process system safety management.The methodology first incorporates possibility,severity,and dynamicity(PSD)to structure the“51X”evaluation indicator system,including the inherent,management,and disturbance risk factors.Subsequently,the four-tier(risk point-unit-enterprise-region)risk assessment(RA)mathematical model has been established to consider supervision needs.And in conclusion,the application of the PSD-RA method in ammonia refrigeration workshop cases and safety risk monitoring systems is presented to illustrate the feasibility and effectiveness of the proposed PSD-RA method in safety management.The findings show that the PSD-RA method can be well integrated with the needs of safety work informatization,which is also helpful for implementing the enterprise's safety work responsibility and the government's safety supervision responsibility.
基金the financial support of the National Natural Science Foundation of China(22078041,22278053)Dalian High-level Talents Innovation Support Program(2021RQ105)the Fundamental Research Funds for China Central Universities(DUT22QN209,DUT22LAB608).
文摘The selection of chemical reactions is directly related to the quality of synthesis pathways,so a reasonable reaction evaluation metric plays a crucial role in the design and planning of synthesis pathways.Since reaction conditions also need to be considered in synthesis pathway design,a reaction metric that combines reaction time,temperature,and yield is required for chemical reactions of different reaction agents.In this study,a chemical reaction graph descriptor which includes the atom-atom mapping relationship is proposed to effectively describe reactions.Then,through pre-training using graph contrastive learning and fine-tuning through supervised learning,we establish a model for generating the probability of reaction superiority(RSscore).Finally,to validate the effectiveness of the current evaluation index,RSscore is applied in two applications,namely reaction evaluation and synthesis routes analysis,which proves that the RSscore provides an important agents-considered evaluation criterion for computer-aided synthesis planning(CASP).
基金support of the project“State Grid Corporation Headquarters Science and Technology Program(5108-202299258A-1-0-ZB)”.
文摘To effectively quantify the impact of distributed photovoltaic(PV)access on the distribution network,this paper proposes a comprehensive evaluation method of distributed PV grid connection combining subjective and objective combination of assignment and technique for order preference by similarity to an ideal solution(TOPSIS)—rank sum ratio(RSR)(TOPSIS-RSR)method.Based on the traditional distribution network evaluation system,a comprehensive evaluation system has been constructed.It fully considers the new development requirements of distributed PV access on the environmental friendliness and absorptive capacity of the distribution grid and comprehensively reflects the impact of distributed PV grid connection.The analytic hierarchy process(AHP)was used to determine the subjective weights of the primary indicators,and the Spearman consistency test was combined to determine the weights of the secondary indicators based on three objective assignment methods.The subjective and objective combination weights of each assessment indicator were calculated through the principle of minimum entropy.Calculate the distance between the indicators to be evaluated and the positive and negative ideal solutions,the relative closeness ranking,and qualitative binning by TOPSIS-RSR method to obtain the comprehensive evaluation results of different scenarios.By setting up different PV grid-connected scenarios and utilizing the IEEE33 node simulation algorithm,the correctness and effectiveness of the proposed subject-object combination assignment and integrated assessment method are verified.
基金Sponsored by the National Eleventh Five-year Special Item of Water Pollution (Grant No.2008ZX07207-005-02)the National Eleventh Five-year Supporting Plan of Science and Technology(Grant No.2006BAJ03A05 -01)the Excellent Younger Teacher Awards Project of Harbin Institute of Technology(Grant No.NACZ98504851)
文摘To improve the mixing efficiency in water purification or wastewater treatment process and understand the mechanism of mass transfer,and a suitable evaluation factor is introduced to evaluate the efficiency of mixing process.The diffusion mass transfer under turbulent condition is investigated based on dynamic and mathematical analysis.The results indicate that submicroscopic diffusion is the rate-limiting step in mass transfer,and the inertia effect of micro vortex causes the phase mixing.An excellent efficiency can be obtained by controlling the scale of micro vortex within millimeter.Furthermore,a new indicator named mixing factor(IH)is proposed to evaluate the efficiency of mixing processes,which is more feasible than conventional evaluation methods,because of its connection of mixing extent with energy consumption.
