Objective Allocation of human resources to address inequalities in the public health system has increasingly attracted societal and political attention.Using the Centers for Disease Control and Prevention(CDCs)system ...Objective Allocation of human resources to address inequalities in the public health system has increasingly attracted societal and political attention.Using the Centers for Disease Control and Prevention(CDCs)system of China as an example,we evaluated inequality in the public health workforce distribution across different regions in China between 2008 and 2017,with the aim of providing information for policymakers to support resource allocation and address growing health inequities.Methods We used three standard public health workforce inequality indices-Gini coefficient,Theil L,and Theil T-and spatial autocorrelation analysis to explore spatial clusters of the workforce in different provinces,visualized with geographical tools.Results The aggregate workforce-to-population ratio decreased from 1.47 to 1.42 per 10,000 population from 2008 to 2017,and was consistently lower than the National Health Commission’s(NHC)recommended critical shortage threshold of 1.75.The workforce distribution inequality indices varied by regional socioeconomic and health system development.Geographic clustering of CDCs workforce distribution was evident,with H–H and L–L clusters in western China and the Guangdong-Fujian region,respectively.Conclusions Our study addressed key issues for government and policymakers in allocation of public health human resources.There is an urgent need for careful identification of analytic questions that will help carry out public health functions in the new era,alongside policy implications for an equitable distribution of the public health workforce focusing on the western region and low–low cluster areas.展开更多
This paper is concerned with the optimization of the workforce scheduling for solving maintenance problems. To achieve this aim an optimsation software for (5, 7) problem was developed. The programme was written in Qu...This paper is concerned with the optimization of the workforce scheduling for solving maintenance problems. To achieve this aim an optimsation software for (5, 7) problem was developed. The programme was written in Quick Basic. The software was designed to produce a seven day schedule for organization operating a seven day week. Hence organization operating a five day schedule wishing to change to a seven day schedule we find this software very useful. The Quick-Basic computer programme was based on Alfares [1, 2] algorithm for solving (5,7) schedule problem. Data collected from Afam power station, Nigeria was used as input data. The test result shows the software is capable of determining workforce size and assigning workers to day-off pattern. The seven-day schedule produced savings of 11% maintenance labour cost when compared with the 5-day schedule currently being practiced by the Power station [3].展开更多
We aimed to describe the distribution of tuberculosis (TB) health workers in China and provide evidences of potential inequity for policy development. We used Lorenz curves and Gini index to characterize the distrib...We aimed to describe the distribution of tuberculosis (TB) health workers in China and provide evidences of potential inequity for policy development. We used Lorenz curves and Gini index to characterize the distribution of TB health workers by population size, geographical area and number of annual registered TB cases. An additional stratified analysis was done by three economic regions. The Gini index were 0.33 for population size, 0.62 for geographical area and 0.30 for number of registered tuberculosis cases that indicated an acceptable average, significant inequity and a relative average distribution nationwide respectively.展开更多
This paper estimates the population to be influenced by China's policy of postponed retirement age and provides design strategies and suggestions in the workplace for the ageing workforce from the perspective of i...This paper estimates the population to be influenced by China's policy of postponed retirement age and provides design strategies and suggestions in the workplace for the ageing workforce from the perspective of inclusive design.First,the literature review about western design principles and practices for the ageing workforce is conducted.It is estimated that China would face approximately 100 million elderly workers in the near future with diverse physical conditions and demands.However,the design research and practices dedicated to ageing workforce in the workplace are comparatively weak in China.Inclusive design,one of the design approaches mainly focusing on ageing problems in developed countries,as well as its theory and methodology,could act as a good reference for Chinese policymakers and designers.Then based on the concept of inclusive design,a human-centered design model is established and design suggestions from four aspects are presented.Finally,two cases are further discussed to illustrate the idea of inclusive design.展开更多
Background: Tinnitus is the phantom aural perception of sound lacking an exterior stimulus, a sub-type of auditory hallucination and it is a common sensation among noise-exposed employees. It is a symptom, not an illn...Background: Tinnitus is the phantom aural perception of sound lacking an exterior stimulus, a sub-type of auditory hallucination and it is a common sensation among noise-exposed employees. It is a symptom, not an illness. Tinnitus can be extremely perplexing for its subjects and it may perhaps dis-turb their health-related quality of life (HR-QoL) if exposed to extreme noises in many ways. Objective: This study is intended to discover the effects and pattern of tinnitus on health-related quality of life (HR-QoL) amid noise-exposed saw mill workforces. Method: This study was a prospective and public-centered cross-sectional study, including 510 sawmill personnel. 510 directorial staff was used as the control. Health-related quality of life (HR-QoL) of all subjects was assessed with the WHO Quality of Life brief questionnaire. Self-reported tinnitus morbidity was assessed by means of the Tinnitus Handicap Inventory. A correlation was established amid health-related quality of life scores and tinnitus severity scores. Result: There were 510 sawmill employees enlisted into the study, out of which 490 were men and 20 were women with control of the same age and sex. The mean age was 36.85 ± 7.68 years for the sawmill workers and 35.75 ± 8.65 years for the control group (t = 1.02, P = 0.275). The mean tinnitus score for the sawmill workers was 20.80 ± 2.56. Out of the 510 sawmill workers, 52 (10.2%) had tinnitus and one of the controls had tinnitus. The mean health-related quality of life scores were 62.20 ± 8.62 and 72.56 ± 5.98 for the sawmill workers and control group respectively. There was a substantial and remarkable difference between the health-related quality of life of the sawmill workers and the control group (P Conclusion: The prevalence of tinnitus from this study was found to be 10.20% and an upsurge in tinnitus rigorousness was seen to be related with a substantial drop in physical, psychological and social domains of the health related quality of life. We highly endorse hearing conservation programmes and use of personal protective equipments for sawmills workers which will aid to decrease the effects of exposure to loud noise. Those sawmill labors already having tinnitus must attempt to go for treatment.展开更多
Earlier analyses of transitions from licensed practical nurse (LPN) to registered nurse (RN) in the North Carolina (NC) nursing workforce in terms of 11 categorical predictors were limited by not considering parsimoni...Earlier analyses of transitions from licensed practical nurse (LPN) to registered nurse (RN) in the North Carolina (NC) nursing workforce in terms of 11 categorical predictors were limited by not considering parsimonious classifications based on these predictors and by substantial amounts of missing data. To address these issues, we formulated adaptive classification methods. Secondary analyses of data collected by the NC State Board of Nursing were also conducted to demonstrate adaptive classification methods by modeling the occurrence of LPN-to-RN transitions in the NC nursing workforce from 2001-2013. These methods combine levels (values) for one or more categorical predictors into parsimonious classifications. Missing values for a predictor are treated as one level for that predictor so that the complete data can be used in the analyses;the missing level is imputed by combining it with other levels of a predictor. An adaptive nested classification generated the best model for predicting an LPN-to-RN transition based on three predictors in order of importance: year of first LPN licensure, work setting at transition, and age at first LPN licensure. These results demonstrate that adaptive classification can identify effective and parsimonious classifications for predicting dichotomous outcomes such as the occurrence of an LPN-to-RN transition.展开更多
We hypothesize that individuals with genetic predisposition to Substance Use Disorder (SUD) may have greater likelihood of experiencing work related accidents. We further hypothesize that high risk populations will ca...We hypothesize that individuals with genetic predisposition to Substance Use Disorder (SUD) may have greater likelihood of experiencing work related accidents. We further hypothesize that high risk populations will carry single or multiple polymorphisms associated with brain reward circuitry and/or brain reward cascade, including: Dopaminergic (i.e. DRD2 receptor genes);Serotonergic (i.e. 5-HTT2 receptor genes);Endorphinergic (i.e. pre-enkephalin genes);Gabergic (i.e. GABAA receptor genes);Neurotransmitter Metabolizing genes (i.e. MAO and COMT genes) among others (GARSRXTM). Analgesic addiction as well as “pseudoaddiction” must be treated to improve pain control and its management. We propose that non-pharmacological alternatives to pain relief, in high risk, addiction-prone individuals, are Electrotherapeutic Device(s) and Programs. We further propose patented KB220Z, a nutraceutical designed to release dopamine at the nucleus accumbens, will reduce craving behavior, in genetically programmed individuals. By utilizing both alternatives in DNA analyzed injured workers, a reduction in analgesic addiction (genuine or pseudo) leads to improved health and quicker return to work. We also hypothesize that this novel approach will impact costs related to injuries in the workforce. Effective management of chronic pain, especially in high addiction-prone workforce populations, is possible in spite of being particularly elusive. A series of factors encumber pain assessment and management, including analgesia addiction, pharmacogenomic response to pain medications, and genetically inherited factors involving gene polymorphisms. Additional research is required to test these stipulated hypotheses related to genetic proneness to addiction, but also proneness to accidents in the workplace and reduction of craving behavior. Our hypothesis that genotyping coupled with both KB220ZTM and the pharmaceutical-free Electrotherapy, will reduce iatrogenic induced analgesia addiction. This approach will achieve attainable effective pain management and quicker return to work. We propose outcomes such as the Reward Deficiency System SolutionTM may become an adjunct in the war against iatrogenic pain medication addiction.展开更多
Determining the size of maintenance workforce is an essential element of maintenance planning. It is important for performing maintenance programs perfectly. However, it is a complex and challenging problem since it i...Determining the size of maintenance workforce is an essential element of maintenance planning. It is important for performing maintenance programs perfectly. However, it is a complex and challenging problem since it involves the consideration of several important factors. The mathematical model developed in this paper aims at finding out the optimal size of the maintenance workforce taking into account all of the important factors that affect this size. It is based on determining the needed number of workers with different skill levels and from different sources to meet maintenance workload of different grades that is to be performed in a specified planning horizon with minimum cost acquired.展开更多
Traditionally, organizations assume that compensation/pay and monetary benefits are what all employees need to work harder, be productive, or remain with the company. According to Abraham Maslow, within every person i...Traditionally, organizations assume that compensation/pay and monetary benefits are what all employees need to work harder, be productive, or remain with the company. According to Abraham Maslow, within every person is a hierarchy of five needs: physiological needs, safety needs, social needs, esteem needs, and self-actualization needs Organizations must be able to identify what employees desire to secure optimum performance and to meet the needs of both employees and employers. This research focuses on the generational gap and the significance of intrinsic and extrinsic rewards in the workforce. The purpose and objective of this research are to test the significance of monetary versus non-monetary rewards among the different generations in the organization. A self-designed questionnaire distributed to a multi-generational group of employees of selected organizations was used to collect the analyzed data. Sixty-five (65%) responses were obtained. Secondary data were used to elucidate the needs in this area of study. Because the workforce is predicted to become more diverse in terms of age, organizations will be unlikely to implement one set of rewards for the multiple generations. This is due to the differing expectations and requirements among the generations. However, the results indicate no significant difference in monetary versus non-monetary rewards among the different generations in the workforce.展开更多
The international movement of workers and the inflow/outflow of immigrants are increasing, the term immigrant communities which country in the world is more familiar. Also, the country that accumulated a history of im...The international movement of workers and the inflow/outflow of immigrants are increasing, the term immigrant communities which country in the world is more familiar. Also, the country that accumulated a history of immigration over decades have been promoted while continuously changing the integration policies for immigrants. The immigration into home country such as the married immigrant women, etc. is constantly increasing in South Korea that had a homogeneous culture. While, it is continued to the overseas movement of young people looking for opportunities in foreign rather than domestic. In South Korea, the multi-cultural families are increasing together with the immigration of foreign workers, the marriage immigrants, etc. in accordance with the globalization of capital and labor, and the multi-cultural society is being formed in accordance with the influx of alien culture and various religious. In this paper, it explored the trends and the future outlook for the multi-cultural workforce in these dimensions. Also, in a multi-cultural society, it suggested the implications and the future assignments for the new changes in the education & training and the employment in order to improve the quality of life and to use as the production entities of multi-cultural workforce.展开更多
Due to recent legislative incentives and a general change in the public eye towards environmental and energy issues, a renewed interest in building nuclear power plants has taken place in the U.S. The Nuclear Regulato...Due to recent legislative incentives and a general change in the public eye towards environmental and energy issues, a renewed interest in building nuclear power plants has taken place in the U.S. The Nuclear Regulatory Commission has also recently given approvals to build four nuclear reactors in two southeast states, which further indicates the resurging interest in nuclear power in the U.S. Such approvals, however, do not specifically address the impact on having a constrained labor force when manufacturing and constructing multiple reactors. Key findings include the comparison of a constrained and unconstrained workforce on construction and manufacturing completion times, the identification of peak labor requirements based on different construction schedules, and the development of training estimates to ensure the workforce and industry are prepared for the new jobs being created. Results suggest that a shorter planned construction timeline is effective when the workforce is moderately constrained to unconstrained. However, with a severely-constrained starting workforce, a longer construction timeline is preferred. For multiple reactor plans, spreading out the construction start dates outperforms all other construction start date schedules. In particular, heavily compressed start dates could effectively kill a resurgent nuclear industry, especially if workforce expansion is not pursued simultaneously.展开更多
Themulti-skill resource-constrained project scheduling problem(MS-RCPSP)is a significantmanagement science problem that extends from the resource-constrained project scheduling problem(RCPSP)and is integrated with a r...Themulti-skill resource-constrained project scheduling problem(MS-RCPSP)is a significantmanagement science problem that extends from the resource-constrained project scheduling problem(RCPSP)and is integrated with a real project and production environment.To solve MS-RCPSP,it is an efficient method to use dispatching rules combined with a parallel scheduling mechanism to generate a scheduling scheme.This paper proposes an improved gene expression programming(IGEP)approach to explore newly dispatching rules that can broadly solve MS-RCPSP.A new backward traversal decoding mechanism,and several neighborhood operators are applied in IGEP.The backward traversal decoding mechanism dramatically reduces the space complexity in the decoding process,and improves the algorithm’s performance.Several neighborhood operators improve the exploration of the potential search space.The experiment takes the intelligent multi-objective project scheduling environment(iMOPSE)benchmark dataset as the training set and testing set of IGEP.Ten newly dispatching rules are discovered and extracted by IGEP,and eight out of ten are superior to other typical dispatching rules.展开更多
基金funded by China CDC’s Public Health and Emergency Response Mechanism Programme[131031001000150001]。
文摘Objective Allocation of human resources to address inequalities in the public health system has increasingly attracted societal and political attention.Using the Centers for Disease Control and Prevention(CDCs)system of China as an example,we evaluated inequality in the public health workforce distribution across different regions in China between 2008 and 2017,with the aim of providing information for policymakers to support resource allocation and address growing health inequities.Methods We used three standard public health workforce inequality indices-Gini coefficient,Theil L,and Theil T-and spatial autocorrelation analysis to explore spatial clusters of the workforce in different provinces,visualized with geographical tools.Results The aggregate workforce-to-population ratio decreased from 1.47 to 1.42 per 10,000 population from 2008 to 2017,and was consistently lower than the National Health Commission’s(NHC)recommended critical shortage threshold of 1.75.The workforce distribution inequality indices varied by regional socioeconomic and health system development.Geographic clustering of CDCs workforce distribution was evident,with H–H and L–L clusters in western China and the Guangdong-Fujian region,respectively.Conclusions Our study addressed key issues for government and policymakers in allocation of public health human resources.There is an urgent need for careful identification of analytic questions that will help carry out public health functions in the new era,alongside policy implications for an equitable distribution of the public health workforce focusing on the western region and low–low cluster areas.
文摘This paper is concerned with the optimization of the workforce scheduling for solving maintenance problems. To achieve this aim an optimsation software for (5, 7) problem was developed. The programme was written in Quick Basic. The software was designed to produce a seven day schedule for organization operating a seven day week. Hence organization operating a five day schedule wishing to change to a seven day schedule we find this software very useful. The Quick-Basic computer programme was based on Alfares [1, 2] algorithm for solving (5,7) schedule problem. Data collected from Afam power station, Nigeria was used as input data. The test result shows the software is capable of determining workforce size and assigning workers to day-off pattern. The seven-day schedule produced savings of 11% maintenance labour cost when compared with the 5-day schedule currently being practiced by the Power station [3].
基金supported by Ministry of Health,China and the Swedish International Development Cooperation Agency granted project "Evidence for Policy and Implementation (EPI-4) Intensifying efforts to achieve the health-related MDGs in four countries with developing economies"
文摘We aimed to describe the distribution of tuberculosis (TB) health workers in China and provide evidences of potential inequity for policy development. We used Lorenz curves and Gini index to characterize the distribution of TB health workers by population size, geographical area and number of annual registered TB cases. An additional stratified analysis was done by three economic regions. The Gini index were 0.33 for population size, 0.62 for geographical area and 0.30 for number of registered tuberculosis cases that indicated an acceptable average, significant inequity and a relative average distribution nationwide respectively.
基金Supported by the Shanghai Education Science Research Program(C17067)
文摘This paper estimates the population to be influenced by China's policy of postponed retirement age and provides design strategies and suggestions in the workplace for the ageing workforce from the perspective of inclusive design.First,the literature review about western design principles and practices for the ageing workforce is conducted.It is estimated that China would face approximately 100 million elderly workers in the near future with diverse physical conditions and demands.However,the design research and practices dedicated to ageing workforce in the workplace are comparatively weak in China.Inclusive design,one of the design approaches mainly focusing on ageing problems in developed countries,as well as its theory and methodology,could act as a good reference for Chinese policymakers and designers.Then based on the concept of inclusive design,a human-centered design model is established and design suggestions from four aspects are presented.Finally,two cases are further discussed to illustrate the idea of inclusive design.
文摘Background: Tinnitus is the phantom aural perception of sound lacking an exterior stimulus, a sub-type of auditory hallucination and it is a common sensation among noise-exposed employees. It is a symptom, not an illness. Tinnitus can be extremely perplexing for its subjects and it may perhaps dis-turb their health-related quality of life (HR-QoL) if exposed to extreme noises in many ways. Objective: This study is intended to discover the effects and pattern of tinnitus on health-related quality of life (HR-QoL) amid noise-exposed saw mill workforces. Method: This study was a prospective and public-centered cross-sectional study, including 510 sawmill personnel. 510 directorial staff was used as the control. Health-related quality of life (HR-QoL) of all subjects was assessed with the WHO Quality of Life brief questionnaire. Self-reported tinnitus morbidity was assessed by means of the Tinnitus Handicap Inventory. A correlation was established amid health-related quality of life scores and tinnitus severity scores. Result: There were 510 sawmill employees enlisted into the study, out of which 490 were men and 20 were women with control of the same age and sex. The mean age was 36.85 ± 7.68 years for the sawmill workers and 35.75 ± 8.65 years for the control group (t = 1.02, P = 0.275). The mean tinnitus score for the sawmill workers was 20.80 ± 2.56. Out of the 510 sawmill workers, 52 (10.2%) had tinnitus and one of the controls had tinnitus. The mean health-related quality of life scores were 62.20 ± 8.62 and 72.56 ± 5.98 for the sawmill workers and control group respectively. There was a substantial and remarkable difference between the health-related quality of life of the sawmill workers and the control group (P Conclusion: The prevalence of tinnitus from this study was found to be 10.20% and an upsurge in tinnitus rigorousness was seen to be related with a substantial drop in physical, psychological and social domains of the health related quality of life. We highly endorse hearing conservation programmes and use of personal protective equipments for sawmills workers which will aid to decrease the effects of exposure to loud noise. Those sawmill labors already having tinnitus must attempt to go for treatment.
文摘Earlier analyses of transitions from licensed practical nurse (LPN) to registered nurse (RN) in the North Carolina (NC) nursing workforce in terms of 11 categorical predictors were limited by not considering parsimonious classifications based on these predictors and by substantial amounts of missing data. To address these issues, we formulated adaptive classification methods. Secondary analyses of data collected by the NC State Board of Nursing were also conducted to demonstrate adaptive classification methods by modeling the occurrence of LPN-to-RN transitions in the NC nursing workforce from 2001-2013. These methods combine levels (values) for one or more categorical predictors into parsimonious classifications. Missing values for a predictor are treated as one level for that predictor so that the complete data can be used in the analyses;the missing level is imputed by combining it with other levels of a predictor. An adaptive nested classification generated the best model for predicting an LPN-to-RN transition based on three predictors in order of importance: year of first LPN licensure, work setting at transition, and age at first LPN licensure. These results demonstrate that adaptive classification can identify effective and parsimonious classifications for predicting dichotomous outcomes such as the occurrence of an LPN-to-RN transition.
文摘We hypothesize that individuals with genetic predisposition to Substance Use Disorder (SUD) may have greater likelihood of experiencing work related accidents. We further hypothesize that high risk populations will carry single or multiple polymorphisms associated with brain reward circuitry and/or brain reward cascade, including: Dopaminergic (i.e. DRD2 receptor genes);Serotonergic (i.e. 5-HTT2 receptor genes);Endorphinergic (i.e. pre-enkephalin genes);Gabergic (i.e. GABAA receptor genes);Neurotransmitter Metabolizing genes (i.e. MAO and COMT genes) among others (GARSRXTM). Analgesic addiction as well as “pseudoaddiction” must be treated to improve pain control and its management. We propose that non-pharmacological alternatives to pain relief, in high risk, addiction-prone individuals, are Electrotherapeutic Device(s) and Programs. We further propose patented KB220Z, a nutraceutical designed to release dopamine at the nucleus accumbens, will reduce craving behavior, in genetically programmed individuals. By utilizing both alternatives in DNA analyzed injured workers, a reduction in analgesic addiction (genuine or pseudo) leads to improved health and quicker return to work. We also hypothesize that this novel approach will impact costs related to injuries in the workforce. Effective management of chronic pain, especially in high addiction-prone workforce populations, is possible in spite of being particularly elusive. A series of factors encumber pain assessment and management, including analgesia addiction, pharmacogenomic response to pain medications, and genetically inherited factors involving gene polymorphisms. Additional research is required to test these stipulated hypotheses related to genetic proneness to addiction, but also proneness to accidents in the workplace and reduction of craving behavior. Our hypothesis that genotyping coupled with both KB220ZTM and the pharmaceutical-free Electrotherapy, will reduce iatrogenic induced analgesia addiction. This approach will achieve attainable effective pain management and quicker return to work. We propose outcomes such as the Reward Deficiency System SolutionTM may become an adjunct in the war against iatrogenic pain medication addiction.
文摘Determining the size of maintenance workforce is an essential element of maintenance planning. It is important for performing maintenance programs perfectly. However, it is a complex and challenging problem since it involves the consideration of several important factors. The mathematical model developed in this paper aims at finding out the optimal size of the maintenance workforce taking into account all of the important factors that affect this size. It is based on determining the needed number of workers with different skill levels and from different sources to meet maintenance workload of different grades that is to be performed in a specified planning horizon with minimum cost acquired.
文摘Traditionally, organizations assume that compensation/pay and monetary benefits are what all employees need to work harder, be productive, or remain with the company. According to Abraham Maslow, within every person is a hierarchy of five needs: physiological needs, safety needs, social needs, esteem needs, and self-actualization needs Organizations must be able to identify what employees desire to secure optimum performance and to meet the needs of both employees and employers. This research focuses on the generational gap and the significance of intrinsic and extrinsic rewards in the workforce. The purpose and objective of this research are to test the significance of monetary versus non-monetary rewards among the different generations in the organization. A self-designed questionnaire distributed to a multi-generational group of employees of selected organizations was used to collect the analyzed data. Sixty-five (65%) responses were obtained. Secondary data were used to elucidate the needs in this area of study. Because the workforce is predicted to become more diverse in terms of age, organizations will be unlikely to implement one set of rewards for the multiple generations. This is due to the differing expectations and requirements among the generations. However, the results indicate no significant difference in monetary versus non-monetary rewards among the different generations in the workforce.
文摘The international movement of workers and the inflow/outflow of immigrants are increasing, the term immigrant communities which country in the world is more familiar. Also, the country that accumulated a history of immigration over decades have been promoted while continuously changing the integration policies for immigrants. The immigration into home country such as the married immigrant women, etc. is constantly increasing in South Korea that had a homogeneous culture. While, it is continued to the overseas movement of young people looking for opportunities in foreign rather than domestic. In South Korea, the multi-cultural families are increasing together with the immigration of foreign workers, the marriage immigrants, etc. in accordance with the globalization of capital and labor, and the multi-cultural society is being formed in accordance with the influx of alien culture and various religious. In this paper, it explored the trends and the future outlook for the multi-cultural workforce in these dimensions. Also, in a multi-cultural society, it suggested the implications and the future assignments for the new changes in the education & training and the employment in order to improve the quality of life and to use as the production entities of multi-cultural workforce.
文摘Due to recent legislative incentives and a general change in the public eye towards environmental and energy issues, a renewed interest in building nuclear power plants has taken place in the U.S. The Nuclear Regulatory Commission has also recently given approvals to build four nuclear reactors in two southeast states, which further indicates the resurging interest in nuclear power in the U.S. Such approvals, however, do not specifically address the impact on having a constrained labor force when manufacturing and constructing multiple reactors. Key findings include the comparison of a constrained and unconstrained workforce on construction and manufacturing completion times, the identification of peak labor requirements based on different construction schedules, and the development of training estimates to ensure the workforce and industry are prepared for the new jobs being created. Results suggest that a shorter planned construction timeline is effective when the workforce is moderately constrained to unconstrained. However, with a severely-constrained starting workforce, a longer construction timeline is preferred. For multiple reactor plans, spreading out the construction start dates outperforms all other construction start date schedules. In particular, heavily compressed start dates could effectively kill a resurgent nuclear industry, especially if workforce expansion is not pursued simultaneously.
基金funded by the National Natural Science Foundation of China(Nos.51875420,51875421,52275504).
文摘Themulti-skill resource-constrained project scheduling problem(MS-RCPSP)is a significantmanagement science problem that extends from the resource-constrained project scheduling problem(RCPSP)and is integrated with a real project and production environment.To solve MS-RCPSP,it is an efficient method to use dispatching rules combined with a parallel scheduling mechanism to generate a scheduling scheme.This paper proposes an improved gene expression programming(IGEP)approach to explore newly dispatching rules that can broadly solve MS-RCPSP.A new backward traversal decoding mechanism,and several neighborhood operators are applied in IGEP.The backward traversal decoding mechanism dramatically reduces the space complexity in the decoding process,and improves the algorithm’s performance.Several neighborhood operators improve the exploration of the potential search space.The experiment takes the intelligent multi-objective project scheduling environment(iMOPSE)benchmark dataset as the training set and testing set of IGEP.Ten newly dispatching rules are discovered and extracted by IGEP,and eight out of ten are superior to other typical dispatching rules.