A Hybrid Discrete Differential Evolution Algorithm to Solve the Split Delivery Vehicle Routing Problem
作者：
Xing, Li-Ning;Liu, Yuanyuan;Li, Haiyan;Wu, Chin-Chia;Lin, Win-Chin;...
期刊：
IEEE ACCESS ,2020年8:207962-207972 ISSN：2169-3536
通讯作者：
Song, Wu
作者机构：
[Xing, Li-Ning] Cent South Univ Forestry & Technol, Sch Logist, Changsha 410004, Peoples R China.;[Xing, Li-Ning; Liu, Yuanyuan] Huazhong Univ Sci & Technol, Mfg Equipment & Technol, Wuhan 430074, Peoples R China.;[Li, Haiyan] Northeastern Univ, Coll Comp Sci & Engn, Shenyang 110819, Peoples R China.;[Lin, Win-Chin; Wu, Chin-Chia] Feng Chia Univ, Dept Stat, Taichung 40724, Taiwan.;[Song, Wu] Hainan Trop Ocean Univ, Sch Comp Sci & Technol, Sanya 572022, Peoples R China.
通讯机构：
[Song, Wu] H;Hainan Trop Ocean Univ, Sch Comp Sci & Technol, Sanya 572022, Peoples R China.
关键词：
Heuristic algorithms;Vehicle routing;Decoding;Hospitals;Logistics;Optimization;Sociology;Split delivery vehicle routing problem;differential evolution;meta-heuristic algorithm;optimization
摘要：
For the split delivery vehicle routing problem in the distribution link of logistics where the optimization objective is to minimize the total distance of the transportation path, a hybrid discrete differential evolution (HDDE) algorithm is adopted in this study. The algorithm applies the encoding and decoding method based on the remaining vehicle capacity to split the demand of customer point and adjust the splitting node to the optimal position of its path. In order to avoid the prematurity of the algorithm, the perturbation mechanism is added, i.e., the three-point insertion method is used in the crossover stage. To ensure the higher quality of the solution, the idea of tabu search is introduced in three cases: initial population generation, selection operation and local optimal situation. Finally, through the numerical experiments based on benchmark data, the HDDE algorithm is compared with other competitive algorithms to demonstrate its domination.
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英文
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COVID-19 patient health prediction using boosted random forest algorithm
作者：
Iwendi, Celestine* ;Bashir, Ali Kashif;Peshkar, Atharva;Sujatha, R.;Chatterjee, Jyotir Moy;...
期刊：
Frontiers in Public Health ,2020年8:562169 ISSN：2296-2565
通讯作者：
Iwendi, Celestine;Jo, Ohyun
作者机构：
[Iwendi, Celestine] BCC Cent South Univ Forestry & Technol, Changsha, Peoples R China.;[Bashir, Ali Kashif] Manchester Metropolitan Univ, Dept Comp & Math, Manchester, Lancs, England.;[Peshkar, Atharva] GH Raisoni Coll Engn, Dept Informat Technol, Nagpur, Maharashtra, India.;[Sujatha, R.] VIT Univ, Sch Informat Technol & Engn, Vellore, Tamil Nadu, India.;[Chatterjee, Jyotir Moy] Lord Buddha Educ Fdn, Dept Informat Technol, Kathmandu, Nepal.
通讯机构：
[Iwendi, Celestine] B;[Jo, Ohyun] C;BCC Cent South Univ Forestry & Technol, Changsha, Peoples R China.;Chungbuk Natl Univ, Coll Elect & Comp Engn, Dept Comp Sci, Cheongju, South Korea.
关键词：
Boosting;COVID-19;Healthcare analytics;Infection;Patient data;Random forest classification
摘要：
Integration of artificial intelligence (AI) techniques in wireless infrastructure, real-time collection, and processing of end-user devices is now in high demand. It is now superlative to use AI to detect and predict pandemics of a colossal nature. The Coronavirus disease 2019 (COVID-19) pandemic, which originated in Wuhan China, has had disastrous effects on the global community and has overburdened advanced healthcare systems throughout the world. Globally; over 4,063,525 confirmed cases and 282,244 deaths have been recorded as of 11th May 2020, according to the European Centre for Disease Prevention and Control agency. However, the current rapid and exponential rise in the number of patients has necessitated efficient and quick prediction of the possible outcome of an infected patient for appropriate treatment using AI techniques. This paper proposes a fine-tuned Random Forest model boosted by the AdaBoost algorithm. The model uses the COVID-19 patient’s geographical, travel, health, and demographic data to predict the severity of the case and the possible outcome, recovery, or death. The model has an accuracy of 94% and a F1 Score of 0.86 on the dataset used. The data analysis reveals a positive correlation between patients’ gender and deaths, and also indicates that the majority of patients are aged between 20 and 70 years. © 2020 Iwendi, Bashir, Peshkar, Sujatha, Chatterjee, Pasupuleti, Mishra, Pillai and Jo.
语种：
英文
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N-Sanitization: A semantic privacy-preserving framework for unstructured medical datasets
作者：
Iwendi, Celestine;Moqurrab, Syed Atif;Anjum, Adeel;Khan, Sangeen;Mohan, Senthilkumar;...
期刊：
Computer Communications ,2020年161(Sep.):160-171 ISSN：0140-3664
通讯作者：
Srivastava, Gautam
作者机构：
[Iwendi, Celestine] Bcc Cent South Univ Forestry & Technol, Changsha 410004, Peoples R China.;[Iwendi, Celestine] Coal City Univ Enugu, Dept Math & Comp Sci, Enugu 400231, Nigeria.;[Moqurrab, Syed Atif] Air Univ Islamabad, Islamabad 44000, Pakistan.;[Moqurrab, Syed Atif; Anjum, Adeel; Khan, Sangeen] Comsats Inst Informat Technol, Islamabad 45550, Pakistan.;[Mohan, Senthilkumar] Vellore Inst Technol, Sch Informat Technol & Engn, Vellore 632014, Tamil Nadu, India.
通讯机构：
[Srivastava, Gautam] B;Brandon Univ, Dept Math & Comp Sci, Brandon, MB R7A 6A9, Canada.
关键词：
Anonymization;Document sanitization;Textual-privacy;Negated assertion;Medical data;IoMT
摘要：
The introduction and rapid growth of the Internet of Medical Things (IoMT), a subset of the Internet of Things (IoT) in the medical and healthcare systems, has brought numerous changes and challenges to current medical and healthcare systems. Healthcare organizations share data about patients with research organizations for various medical discoveries. Releasing such information is a tedious task since it puts the privacy of patients at risk with the understanding that textual health documents about an individual contains specific sensitive terms that need to be sanitized before such document can be released. Recent approaches improved the utility of protected output by substituting sensitive terms with appropriate “generalizations” that are retrieved from several medical and general-purpose knowledge bases (KBs). However, these approaches perform unnecessary sanitization by anonymizing the negated assertions, e.g., AIDS-negative. This paper proposes a semantic privacy framework that effectively sanitizes the sensitive and semantically related terms in healthcare documents. The proposed model effectively identifies the negated assertions (e.g., AIDS-negative) before the sanitization process in IoMT which further improves the utility of sanitized documents. Moreover, besides considering the sensitive medical findings, we also incorporated state-of-the-art metrics, i.e., Protected Health Information (PHI), as defined in the privacy rules such as Health Insurance Portability and Accountability Act (HIPAA), Informatics for Integrating Biology & the Bedside (i2b2), and Materialize Interactive Medical Image Control System (MIMICS). The proposed approach is evaluated on real clinical data provided by i2b2. On average the detection (for both PHI's and medical findings) accuracy is improved with Precision, Recall and F-measure score at 21%, 51%, and 54% respectively. The overall improved data utility of our proposed model is 8% as compared to C-sanitized and 25% when comparing it with a simple reduction approach. Experimental results show that our approach effectively manages the privacy and utility trade-off as compared to its counterparts. © 2020 Elsevier B.V.
语种：
英文
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Integrated Optimization of the Location-Inventory Problem of Maintenance Component Distribution for High-Speed Railway Operations
作者：
Zhang, Dezhi;Yang, Shuxin;Li, Shuangyan;Fan, Jiajun;Ji, Bin*
期刊：
Sustainability ,2020年12(13) ISSN：2071-1050
通讯作者：
Ji, Bin
作者机构：
[Ji, Bin; Fan, Jiajun; Zhang, Dezhi; Yang, Shuxin] Cent South Univ, Sch Traff & Transportat Engn, Changsha 410075, Peoples R China.;[Li, Shuangyan] Cent South Univ Forestry & Technol, Coll Logist & Transportat, Changsha 410004, Peoples R China.
通讯机构：
[Ji, Bin] C;Cent South Univ, Sch Traff & Transportat Engn, Changsha 410075, Peoples R China.
关键词：
distribution network design;maintenance components of high-speed railway;location-inventory problem;optimization model;adaptive genetic algorithm;case study
摘要：
Sustainable distribution network design for the maintenance components of electric multiple units (EMUs) is critical to reduce the problem of unreasonable resource allocation and capital occupation of high-speed railway (HSR) operations. Motivated by the above analysis, this study investigates the integrated optimization of the location and inventory of EMU maintenance component distributions. Aiming to improve the sustainable operation for high-speed railway, we proposed a corresponding nonlinear mixed-integer programming model to determine the location of the distribution center (DC) for EMU maintenance component delivery, inventory control strategy, and corresponding service level. The above optimization model is solved by an adaptive improved genetic algorithm. The proposed model and algorithm are applied to a real-world case study on China's EMU maintenance components. The findings show that a higher service level is not better to achieve the lower total cost in the maintenance component distribution network. The ratios of transportation modes are significant to balance the service level and total cost of the EMU distribution network. Furthermore, the unit out-of-stock cost and the service level both show great impacts on the total costs of the EMU distribution system. Finally, there exists an optimal ratio of different transport modes, which ensures the least total cost of the EMU distribution system.
语种：
英文
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The Vertical Differences in the Change Rates and Controlling Factors of Soil Organic Carbon and Total Nitrogen along Vegetation Restoration in a Subtropical Area of China
作者：
Cao, Zhiwei;Fang, Xi* ;Xiang, Wenhua;Lei, Pifeng;Peng, Changhui
期刊：
Sustainability ,2020年12(16) ISSN：2071-1050
通讯作者：
Fang, Xi
作者机构：
[Cao, Zhiwei; Lei, Pifeng; Xiang, Wenhua; Fang, Xi] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;[Lei, Pifeng; Xiang, Wenhua; Fang, Xi; Peng, Changhui] Huitong Natl Field Stn Sci Observat & Res Chinese, Huitong 438107, Peoples R China.;[Peng, Changhui] Univ Quebec, Inst Environm Sci, Dept Biol Sci, Montreal, PQ H3C 3P8, Canada.
通讯机构：
[Fang, Xi] C;[Fang, Xi] H;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;Huitong Natl Field Stn Sci Observat & Res Chinese, Huitong 438107, Peoples R China.
关键词：
content and stock;increase rates;C;N;fine root biomass;vegetation-soil interaction
摘要：
The study was to investigate the change patterns of soil organic carbon (SOC), total nitrogen (TN), and soil C/N (C/N) in each soil sublayer along vegetation restoration in subtropical China. We collected soil samples in four typical plant communities along a restoration chronosequence. The soil physicochemical properties, fine root, and litter biomass were measured. Our results showed the proportion of SOC stocks (Cs) and TN stocks (Ns) in 20-30 and 30-40 cm soil layers increased, whereas that in 0-10 and 10-20 cm soil layers decreased. Different but well-constrained C/N was found among four restoration stages in each soil sublayer. The effect of soil factors was greater on the deep soil than the surface soil, while the effect of vegetation factors was just the opposite. Our study indicated that vegetation restoration promoted the uniform distribution of SOC and TN on the soil profile. The C/N was relatively stable along vegetation restoration in each soil layer. The accumulation of SOC and TN in the surface soil layer was controlled more by vegetation factors, while that in the lower layer was controlled by both vegetation factors and soil factors.
语种：
英文
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Accumulation of Urban Insect Pests in China: 50 Years' Observations on Camphor Tree (Cinnamomum camphora)
作者：
Xiang, Zhiyuan;Zhao, Meifang* ;Ogbodo, U. S.
期刊：
Sustainability ,2020年12(4) ISSN：2071-1050
通讯作者：
Zhao, Meifang
作者机构：
[Zhao, Meifang; Xiang, Zhiyuan] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;[Zhao, Meifang; Ogbodo, U. S.; Xiang, Zhiyuan] Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Peoples R China.
通讯机构：
[Zhao, Meifang] C;[Zhao, Meifang] N;Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.;Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Peoples R China.
关键词：
Cinnamomum camphora;insect pest;outbreak;urban tree;climate change
摘要：
Since China experienced a rapid and unprecedented process of urbanization and climate change from 1978 onwards, pest outbreaks were frequently reported on urban forests, which reflects a significant imbalance between natural regulation and human control. Based on information extracted from all journal articles and reports about insect pests on camphor tree (Cinnamomum camphora) in urban China, we characterized historical patterns and trends in pest outbreaks over large areas. Our results suggested that (1) most distribution areas of C. camphora in urban China had pest records (14 provinces) over the last 50 years, especially at the south-eastern coastal areas; (2) pests on camphor tree in urban China showed an accelerated growth since the 1990s; and (3) pests on camphor tree in urban China were characterized by native and leaf-feeding species. Urbanization seems to positively correlate with urban pest outbreaks. Changes of urban pest outbreaks could largely be described by synchronic changes of socio-economic indicators, of which CO2 emissions as metric tons per capita is the most significant predictor, followed by GDP and human population. Thus, managers and city planners should allocate resources to socio-economic-related pest outbreaks for a sustainable ecosystem.
语种：
英文
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A novel construct of anhedonia revealed in a Chinese sample via the Revised Physical and Social Anhedonia Scales
作者：
Wu, Qiongqiong;He, Jiayue;Fang, Shulin;Zhang, Panwen;Luo, Xingwei;...
期刊：
BMC Psychiatry ,2020年20(1):1-13 ISSN：1471-244X
通讯作者：
Wang, Xiang
作者机构：
[Zhang, Panwen; Wang, Xiang; Luo, Xingwei; He, Jiayue; Fang, Shulin; Yao, Shuqiao; Wu, Qiongqiong] Cent South Univ, Xiangya Hosp 2, Med Psychol Ctr, Changsha 410011, Peoples R China.;[Xiong, Yan; Zhang, Jianghua] Cent South Univ, Student Affairs Dept, Changsha 410083, Peoples R China.;[Luo, Fusheng] Cent South Univ Forestry & Technol, Student Affairs Dept, Changsha 410004, Peoples R China.;[Wang, Xiaosheng] Cent South Univ, Xiangya Sch Med, Dept Human Anat & Neurobiol, Changsha 410013, Peoples R China.;[Wang, Xiang; Yao, Shuqiao] Cent South Univ, Med Psychol Inst, Changsha 410011, Peoples R China.
通讯机构：
[Wang, Xiang] C;[Wang, Xiang] N;Cent South Univ, Xiangya Hosp 2, Med Psychol Ctr, Changsha 410011, Peoples R China.;Cent South Univ, Med Psychol Inst, Changsha 410011, Peoples R China.;Natl Clin Res Ctr Mental Disorders, Changsha 410011, Peoples R China.
关键词：
Anhedonia;Revised Physical Anhedonia Scale (RPAS);Revised Social Anhedonia Scale (RSAS);Factor structure;Second-order hierarchical model;Chinese version
摘要：
Background: Anhedonia is a core clinical symptom of mental disorders. The Revised Physical Anhedonia Scale (RPAS) and the Revised Social Anhedonia Scale (RSAS) have been applied in clinical and non-clinical samples since 1980s. However, the construct of a unified RPAS&RSAS for comprehensive measurement of anhedonia has never been explored. Therefore, the purpose of our study was to examine the factor structure of the unified RPAS&RSAS among undergraduates and clinical patients. Methods: A total of 3435 undergraduates from two universities and 294 clinical patients with mental disorders had completed the Chinese version of the RPAS and the RSAS. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were each conducted to reveal the constructs of the RPAS and the RSAS. CFA was used to evaluate first- and second-order models for the unified RPAS&RSAS in undergraduates and clinical patients. The internal consistency and test-retest reliability of the RPAS and the RSAS were also evaluated. Results: EFA and CFA indicated 2-factor structures for RPAS and RSAS, with the factors being defined as anticipatory anhedonia and consummatory anhedonia. The second-order model of the unified RPAS&RSAS in the undergraduates and clinical patients both had satisfactory fit index values (Undergraduate sample: CFI = 0.901, TLI = 0.899,RMSEA = 0.055, SRMR = 0.086; Clinical sample: CFI = 0.922, TLI = 0.911, RMSEA = 0.052, SRMR = 0.078). The psychometric robustness of the RPAS&RSAS were confirmed by high internal consistency and test-retest reliability values. Conclusions: The unified RPAS&RSAS with a second-order structure was confirmed in both undergraduates and clinical samples in Chinese. The construct of anhedonia was refreshed as covering physical and social domains, and each of them includes both anticipatory and consummatory components. © 2020, The Author(s).
语种：
英文
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Empirical Study on Influencing Factors of Knowledge Product Remixing in OIC
作者：
Tan, Juan* ;Miao, Dongqing;Tan, Qiong
期刊：
IEEE ACCESS ,2020年8:34215-34224 ISSN：2169-3536
通讯作者：
Tan, Juan
作者机构：
[Miao, Dongqing; Tan, Juan] Beijing Technol & Business Univ, Business Sch, Beijing 100048, Peoples R China.;[Tan, Qiong] Cent South Univ Forestry & Technol, Sch Econ, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Tan, Juan] B;Beijing Technol & Business Univ, Business Sch, Beijing 100048, Peoples R China.
关键词：
Technological innovation;Complexity theory;Licenses;Biological system modeling;Analytical models;Creativity;Machine learning;Remixing of knowledge products;deep learning;false data identification;attention degree;user interaction;knowledge complexity
摘要：
Remixing of knowledge products has become one of the mainstream innovation models for the online innovation community (OIC). It is of great significance to explore the influencing factors of knowledge product remixing in OIC for better stimulating the open innovation. We first propose an analytical model for influencing factors of knowledge product remixing, then come up with a method for identifying false product attributes based on deep learning, and finally sum up the influencing factors of knowledge product remixing after analyzing the knowledge product attributes. The study results show that attention degree and user interaction have a positive impact on remixing of knowledge products, and there exists an inversely U-shaped relationship between knowledge complexity and product remixing. Continuous innovation has no significant positive incentive effect on product remixing.
语种：
英文
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Multilevel Organisation of Animal Sociality
作者：
Grueter, Cyril C.* ;Qi, Xiaoguang* ;Zinner, Dietmar;Bergman, Thore;Li, Ming;...
期刊：
Trends in Ecology & Evolution ,2020年35(9):834-847 ISSN：0169-5347
通讯作者：
Grueter, Cyril C.;Qi, Xiaoguang
作者机构：
[Grueter, Cyril C.; Miller, Alex] Univ Western Australia, Sch Human Sci, Perth, WA 6009, Australia.;[Grueter, Cyril C.] Univ Western Australia, Ctr Evolutionary Biol, Sch Biol Sci, Perth, WA 6009, Australia.;[Li, Baoguo; Qi, Xiaoguang] Northwest Univ, Coll Life Sci, Shaanxi Key Lab Anim Conservat, Xian 710069, Peoples R China.;[Fischer, Julia; Zinner, Dietmar] German Primate Ctr DPZ, Leibniz Inst Primate Res, Cognit Ethol Lab, D-37077 Gottingen, Germany.;[Zinner, Dietmar] Leibniz ScienceCampus Primate Cognit, D-37077 Gottingen, Germany.
通讯机构：
[Grueter, Cyril C.] U;[Qi, Xiaoguang] N;Univ Western Australia, Sch Human Sci, Perth, WA 6009, Australia.;Univ Western Australia, Ctr Evolutionary Biol, Sch Biol Sci, Perth, WA 6009, Australia.;Northwest Univ, Coll Life Sci, Shaanxi Key Lab Anim Conservat, Xian 710069, Peoples R China.
关键词：
multilevel society;social complexity;socioecology
摘要：
Multilevel societies (MLSs), stable nuclear social units within a larger collective encompassing multiple nested social levels, occur in several mammalian lineages. Their architectural complexity and size impose specific demands on their members requiring adaptive solutions in multiple domains. The functional significance of MLSs lies in their members being equipped to reap the benefits of multiple group sizes. Here, we propose a unifying terminology and operational definition of MLS. To identify new avenues for integrative research, we synthesise current literature on the selective pressures underlying the evolution of MLSs and their implications for cognition, intersexual conflict, and sexual selection. Mapping the drivers and consequences of MLS provides a reference point for the social evolution of many taxa, including our own species. © 2020 Elsevier Ltd
语种：
英文
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Estimation of fuzzy portfolio efficiency via an improved DEA approach
作者：
Xiao, Helu;Ren, Tiantian;Ren, Teng*
期刊：
INFOR ,2020年58(3):478-510 ISSN：0315-5986
通讯作者：
Ren, Teng
作者机构：
[Xiao, Helu] Hunan Normal Univ, Sch Business, Changsha, Peoples R China.;[Ren, Tiantian] Hunan Univ, Sch Business Adm, Changsha, Peoples R China.;[Ren, Teng] Cent South Univ Forestry & Technol, Sch Logist & Transportat, Changsha 410004, Peoples R China.
通讯机构：
[Ren, Teng] C;Cent South Univ Forestry & Technol, Sch Logist & Transportat, Changsha 410004, Peoples R China.
关键词：
Data envelopment analysis;Diversification DEA model;Fuzzy portfolio evaluation;Improved DEA frontier;Improved DEA model
摘要：
DEA (Data Envelopment Analysis) is a nonparametric approach that has been used to estimate fuzzy portfolio efficiency. In this paper, we propose an approach under the fuzzy theory framework that can both improve the DEA frontier and suggest a replicable benchmark for investors. We first construct an improved DEA model using the proposed approach and then investigate the relationships among the evaluation model based on a portfolio frontier, the traditional DEA model and the improved DEA model. We show the convergence of the improved DEA model under the fuzzy framework. The simulation indicates that the improved DEA frontier is closer to the portfolio frontier than to the traditional DEA frontier. More importantly, we incorporate the diversification DEA model and improved DEA model to analyze the performance of China’s open-end fund. The empirical results indicate that the improved DEA model not only provides a quicker way to assess the investment funds compared to the diversification DEA model but also makes up for the shortcoming of the traditional DEA model, which overestimates the fuzzy portfolio efficiency. ß 2020 Canadian Operational Research Society (CORS)
语种：
英文
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Assessing Genetic Diversity and Population Structure of Kalmia latifolia L. in the Eastern United States: An Essential Step towards Breeding for Adaptability to Southeastern Environmental Conditions
作者：
Li, He;Chappell, Matthew;Zhang, Donglin*
期刊：
Sustainability ,2020年12(19):8284- ISSN：2071-1050
通讯作者：
Zhang, Donglin
作者机构：
[Li, He] Cent South Univ Forestry & Technol, Coll Forestry, 498 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.;[Zhang, Donglin; Chappell, Matthew] Univ Georgia, Dept Hort, 1111 Miller Plant Sci Bldg, Athens, GA 30602 USA.
通讯机构：
[Zhang, Donglin] U;Univ Georgia, Dept Hort, 1111 Miller Plant Sci Bldg, Athens, GA 30602 USA.
关键词：
genetic diversity;genetic differentiation;population structure;germplasm resources;breeding for adaptability;ornamental
摘要：
Kalmia latifolia L. (mountain laurel), an attractive flowering shrub, is considered to be a high-value ornamental plant for the eastern United States. Limited information on the genetic diversity and structure of K. latifolia is available, which obstructs efficient germplasm utilization and breeding for adaptability to southeastern environmental conditions. In this study, the genetic diversity of 48 wild K. latifolia plants sampled from eight populations in the eastern U.S. was assessed using eight inter simple sequence repeat (ISSR) markers. A total of 116 bands were amplified, 90.52% of which (105) were polymorphic. A high level of genetic diversity at the species level was determined by Nei's gene diversity (0.3089) and Shannon's information index (0.4654), indicating that K. latifolia was able to adapt to environmental changes and thus was able to distribute over a wide latitudinal range. In terms of the distribution of genetic diversity, Nei's genetic differentiation and analysis of molecular variance (AMOVA) showed 38.09% and 29.54% of diversity existed among populations, respectively, elucidating a low-to-moderate level of among-population genetic differentiation. Although a relatively large proportion of diversity was attributed to within-population variation, low diversity within populations (mean genetic diversity within populations (HS) = 0.19) was observed. Both STRUCTURE and unweighted pair group method with arithmetic mean (UPGMA) dendrograms exhibited the clustering of populations that inhabit the same geographic region, and four clusters correlated with four geographic regions, which might be attributed to insect pollination, small population size, and environmental conditions in different habitats. These results function as an essential step towards better conserving and utilizing wild K. latifolia resources, and hence promoting its genetic improvement and breeding for adaptability to southeastern environmental conditions. © 2020 by the authors.
语种：
英文
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Drivers of carbon emissions in China’s tourism industry
作者：
Luo, Fen;Moyle, Brent D.;Moyle, Char-lee J.;Zhong, Yongde* ;Shi, Shengyi
期刊：
Journal of Sustainable Tourism ,2020年28(5):747-770 ISSN：0966-9582
通讯作者：
Zhong, Yongde
作者机构：
[Luo, Fen; Zhong, Yongde] Cent South Univ Forestry & Technol, Coll Tourism, Changsha, Hunan, Peoples R China.;[Moyle, Brent D.] Griffith Univ, Dept Tourism Sport & Hotel Management, Nathan, Qld, Australia.;[Moyle, Char-lee J.] Queensland Univ Technol, Australian Ctr Entrepreneurship, Brisbane, Qld, Australia.;[Shi, Shengyi] Haikou Dev & Reform Commiss, Haikou, Hainan, Peoples R China.;[Zhong, Yongde] Cent South Univ Forestry Technol, Coll Tourism, 498 Shaoshan South Rd, Changsha, Hunan, Peoples R China.
通讯机构：
[Zhong, Yongde] C;Cent South Univ Forestry Technol, Coll Tourism, 498 Shaoshan South Rd, Changsha, Hunan, Peoples R China.
关键词：
Carbon emissions;Driving forces;Index decomposition analysis (IDA);Structural decomposition analysis (SDA);China
摘要：
This manuscript examines the driving forces of carbon emissions in China’s tourism industry. Tourism carbon emissions are estimated by constructing China’s Economic-Environmental Accounts (EEA). Analysis is divided into five-time intervals and specifically examines intensity, scale, structure, and technology. Following index and structural decomposition methods, changes in tourism carbon emissions were segmented into sixteen economy-wide and tourism-specific driving forces. Results demonstrate that direct and total tourism carbon emissions compose 0.7% and 2.7% of total carbon emissions in China. Analysis revealed the positive driver of tourism emissions was domestic tourists, representing 140.4% increase in direct and 263.4% increase in total tourism carbon emissions. Modelling identified energy intensity as the main negative driver in total and direct tourism carbon emissions, especially for national economic sectors (−208.6%) and non-transport tourism sectors (−33.8%). Future research should focus on the measurement and implementation of mitigation policies for domestic tourism emissions. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
语种：
英文
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Examining the spatiotemporal change of forest resource carrying capacity of the Yangtze River Economic Belt in China
作者：
Tang, Xu;Guan, Xingliang;Lu, Shasha* ;Qin, Fan;Liu, Xu;...
期刊：
Environmental Science and Pollution Research ,2020年27(17):21213-21230 ISSN：0944-1344
通讯作者：
Lu, Shasha;Zhang, Dahong
作者机构：
[Tang, Xu] Cent South Univ Forestry & Technol, Sch Econ, 498 Shaoshan South Rd, Changsha 410004, Hunan, Peoples R China.;[Liu, Xu; Tang, Xu; Lu, Shasha; Qin, Fan; Zhang, Dahong; Lu, SS; Zhang, DH] Beijing Forestry Univ, Sch Econ & Management, 35 Tsinghua East Rd, Beijing 100083, Peoples R China.;[Guan, Xingliang] Natl Acad Mayors China, 2 Huixin West St, Beijing 100029, Peoples R China.
通讯机构：
[Lu, SS; Zhang, DH] B;Beijing Forestry Univ, Sch Econ & Management, 35 Tsinghua East Rd, Beijing 100083, Peoples R China.
关键词：
Forest resource carrying capacity;Forest ecological security index;Ecological location coefficient;Spatial correlation analysis;The Yangtze River Economic Belt;China
摘要：
Rapid urbanization and the excessive human harvesting of forests have led to a continuous decline in the carrying capacity of forests in China. As a result, quantitative means of measuring forest resource carrying capacity are greatly needed, with a view to identifying problem areas and their causes and formulating effective response strategies. This paper puts forward a framework and methodology for constructing a forest resource carrying capacity index (FRCCI). To do this, we first calculate a forest ecological security index (FESI), using an evaluation index system. Ideal FESI values are then simulated by introducing a forest ecological location coefficient (FELC), and the FRCCI is obtained as the difference between the ideal FESI and the FESI. The study considers the 1086 counties that compose the Yangtze River Economic Belt in China, using forest and socioeconomic data for 2015. The resulting FRCCI values indicate that the forests of Yunnan province are generally in a state of “no overload,” while Sichuan, Guizhou, Chongqing, Hunan, Hubei, Jiangxi, and Zhejiang provinces occupied a state of “critical overload” and Anhui and Jiangsu provinces experienced “general overload.” The spatial pattern of the FRCCI in the study region presented significant centralization, with high FRCCI values mainly clustered in areas in the upper reaches of the Yangtze River and low FRCCI values mainly clustered in areas in the midstream and downstream reaches of the River. The study identifies 416 counties identified as forest carrying capacity problem areas (38.31% of the study area); these areas were mainly concentrated in Shanghai and Anhui province. We argue that a number of measures would be helpful in improving FRCCI values, including promoting the forest state index by strengthening reforestation as well as afforestation, reducing the external pressure on forests by means of energy saving and emission reduction strategies, and formulating comprehensive policy measures to promote the carrying capacity of forests in the whole study area and in the problem areas. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
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Synergy of Photocatalysis and Adsorption for Simultaneous Removal of Hexavalent Chromium and Methylene Blue by g-C3N4/BiFeO3/Carbon Nanotubes Ternary Composites
作者：
Huo, Huiwen;Hu, Xinjiang* ;Wang, Hui;Li, Jiang;Xie, Guangyu;...
期刊：
International Journal of Environmental Research and Public Health ,2019年16(17):3219- ISSN：1661-7827
通讯作者：
Hu, Xinjiang
作者机构：
[Huo, Huiwen; Hu, Xinjiang; Li, Chuang; Wang, Hui; Jin, Qi; Xie, Guangyu; Zhou, Daixi] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Hunan, Peoples R China.;[Wang, Hui; Qiu, Guoqiang] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Li, Jiang] Cent S Univ, Sch Architecture & Art, Changsha 410082, Hunan, Peoples R China.;[Liu, Yunguo; Tan, Xiaofei] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.;[Liu, Yunguo; Tan, Xiaofei] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Hu, Xinjiang] C;Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Hunan, Peoples R China.
关键词：
hexavalent chromium;methylene blue;adsorption;photocatalysis;synergistic treatment
摘要：
A novel graphite-phase carbon nitride (g-C3N4)/bismuth ferrite (BiFeO3)/carbon nanotubes (CNTs) ternary magnetic composite (CNBT) was prepared by a hydrothermal synthesis. Using this material, Cr(VI) and methylene blue (MB) were removed from wastewater through synergistic adsorption and photocatalysis. The effects of pH, time, and pollutant concentration on the photocatalytic performance of CNBT, as well as possible interactions between Cr(VI) and MB species were analyzed. The obtained results showed that CNTs could effectively reduce the recombination rate of electron-hole pairs during the photocatalytic reaction of the g-C3N4/BiFeO3 composite, thereby improving its photocatalytic performance, while the presence of MB increased the reduction rate of Cr(VI). After 5 h of the simultaneous adsorption and photocatalysis by CNBT, the removal rates of Cr(VI) and MB were 93% and 98%, respectively. This study provides a new theoretical basis and technical guidance for the combined application of photocatalysis and adsorption in the treatment of wastewaters containing mixed pollutants.
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Predictive Soil Pollution Mapping: A Hybrid Approach for a Dataset with Outliers
作者：
Yang, Wentao;Deng, Min* ;Yang, Xuexi;Wei, Dongsheng
期刊：
IEEE ACCESS ,2019年7:46668-46676 ISSN：2169-3536
通讯作者：
Deng, Min
作者机构：
[Yang, Wentao] Hunan Univ Sci & Technol, Natl Local Joint Engn Lab Geospatial Informat Tec, Xiangtan 411100, Peoples R China.;[Deng, Min; Yang, Xuexi] Cent S Univ, Sch Geosci & Infophys, Changsha 410083, Hunan, Peoples R China.;[Wei, Dongsheng] Cent South Univ Forestry & Technol, Coll Civil Engn, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Deng, Min] C;Cent S Univ, Sch Geosci & Infophys, Changsha 410083, Hunan, Peoples R China.
关键词：
data mining;geographic information system;Land pollution;spatial database
摘要：
Spatial regression or interpolation is widely used for predictive soil pollution mapping, which aims to estimate all unobserved soil pollution based on a finite number of sample points. However, it may be unreasonable to use spatial regression or interpolation directly for an environmental soil dataset with outliers, because the mechanism generating outlier datasets is always different from that generating normal datasets, which necessitates handling outliers separately. Therefore, a hybrid approach for estimating unknown soil pollution concentrations is developed in this paper. The hybrid approach comprises three main steps: First, spatial outlier detection is used to uncover abnormal sample points and the study area is then divided into the normal and outlier areas. Second, spatial regression and interpolation are applied to analyze the normal and outlier datasets, respectively. Finally, the results of the predictive soil pollution mapping are derived from the prediction combination of spatial regression and interpolation. An environmental dataset recording heavy metal Cd and As concentrations at Huizhou, China was selected to verify the performance of the proposed approach. The numbers of identified outlier points of heavy metal Cd and As concentrations were 16 and 13. For the prediction result of Cd, the mean square error (MSE) and mean relative error (MRE) of the hybrid approach were about 0.028 and 0.332, respectively. For the prediction result of As, the MSE and MRE of the hybrid approach were about 3.834 and 0.366, respectively. All of these values were smaller than those of models used for comparison. The result of the comparative analysis demonstrates the feasibility and effectiveness of the proposed approach. © 2013 IEEE.
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英文
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Analysis of regional difference decomposition of changes in energy consumption in China during 1995–2015
作者：
Liu, Hong;Wang, Chang;Tian, Meiyu;Wen, Fenghua*
期刊：
Energy ,2019年171:1139-1149 ISSN：0360-5442
通讯作者：
Wen, Fenghua
作者机构：
[Tian, Meiyu; Wang, Chang; Wen, Fenghua; Liu, Hong] Cent S Univ, Sch Business, Changsha 410083, Hunan, Peoples R China.;[Liu, Hong] Cent South Univ Forestry & Technol, Sch Econ, Changsha 410004, Hunan, Peoples R China.;[Wen, Fenghua] Univ Windsor, Supply Chain & Logist Optimizat Res Ctr, Fac Engn, Windsor, ON, Canada.
通讯机构：
[Wen, Fenghua] C;Cent S Univ, Sch Business, Changsha 410083, Hunan, Peoples R China.
关键词：
Complete decomposition model;Energy consumption;Energy intensity;Regional differences
摘要：
With the increase in energy consumption in China, the influential factors and contributions to such increase have received more attention. In this paper, the decomposition of energy consumption and energy intensity in China from 1995 to 2015 was conducted by using a complete decomposition model. This study focuses on regional difference, which is not in line with the existing studies. The decomposition results indicate that the economic growth has a significant driving effect on the energy consumption, while the energy intensity effect reduces the growth of the total energy consumption. The structural effect plays a negative role but has less effect on the growth of the energy consumption. The contribution rate on the growth of the energy consumption in the eastern region gradually decreases. However, in the western region it grows fast and even exceeds that of the eastern region to become the highest energy consumption area in China in 2010–2015. The energy intensity declines substantially in China. It is mainly due to the improvement of regional energy efficiency and negligible contribution from the structural effect. In conclusion, the energy consumption and energy intensity in China follow different forms in different regions. Therefore, the application of differentiated regional energy policies is preferable over a single national energy policy. © 2019 Elsevier Ltd
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英文
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A Differential Evolution-Oriented Pruning Neural Network Model for Bankruptcy Prediction
作者：
Tang, Yajiao;Ji, Junkai;Zhu, Yulin;Gao, Shangce* ;Tang, Zheng;...
期刊：
Complexity ,2019年2019(1):8682124:1-8682124:21 ISSN：1076-2787
通讯作者：
Gao, Shangce;Todo, Yuki
作者机构：
[Tang, Yajiao; Zhu, Yulin] Cent South Univ Forestry & Technol, Coll Econ, Changsha 410004, Hunan, Peoples R China.;[Tang, Yajiao; Tang, Zheng; Gao, Shangce] Univ Toyama, Fac Engn, Toyama 9308555, Japan.;[Ji, Junkai] Shenzhen Univ, Coll Comp Sci & Software Engn, Shenzhen 518060, Peoples R China.;[Todo, Yuki] Kanazawa Univ, Sch Elect & Comp Engn, Kanazawa, Ishikawa 9201192, Japan.
通讯机构：
[Gao, Shangce] U;[Todo, Yuki] K;Univ Toyama, Fac Engn, Toyama 9308555, Japan.;Kanazawa Univ, Sch Elect & Comp Engn, Kanazawa, Ishikawa 9201192, Japan.
摘要：
Financial bankruptcy prediction is crucial for financial institutions in assessing the financial health of companies and individuals. Such work is necessary for financial institutions to establish effective prediction models to make appropriate lending decisions. In recent decades, various bankruptcy prediction models have been developed for academics and practitioners to predict the likelihood that a loan customer will go bankrupt. Among them, Artificial Neural Networks (ANNs) have been widely and effectively applied in bankruptcy prediction. Inspired by the mechanism of biological neurons, we propose an evolutionary pruning neural network (EPNN) model to conduct financial bankruptcy analysis. The EPNN possesses a dynamic dendritic structure that is trained by a global optimization learning algorithm: the Adaptive Differential Evolution algorithm with Optional External Archive (JADE). The EPNN can reduce the computational complexity by removing the superfluous and ineffective synapses and dendrites in the structure and is simultaneously able to achieve a competitive classification accuracy. After simplifying the structure, the EPNN can be entirely replaced by a logic circuit containing the comparators and the logic NOT, AND, and OR gates. This mechanism makes it feasible to apply the EPNN to bankruptcy analysis in hardware implementations. To verify the effectiveness of the EPNN, we adopt two benchmark datasets in our experiments. The experimental results reveal that the EPNN outperforms the Multilayer Perceptron (MLP) model and our previously developed preliminary pruning neural network (PNN) model in terms of accuracy, convergence speed, and Area Under the Receiver Operating Characteristics (ROC) curve (AUC). In addition, the EPNN also provides competitive and satisfactory classification performances in contrast with other commonly used classification methods. © 2019 Yajiao Tang et al.
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英文
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Assessing and Mapping Forest Landscape Quality in China
作者：
Wu, Jiangzhou;Zhong, Yongde* ;Deng, Jinyang
期刊：
Forests ,2019年10(8):684- ISSN：1999-4907
通讯作者：
Zhong, Yongde
作者机构：
[Wu, Jiangzhou; Zhong, Yongde] Cent South Univ Forestry & Technol, Coll Tourism, Changsha 410004, Hunan, Peoples R China.;[Deng, Jinyang] West Virginia Univ, Sch Nat Resources, Recreat Pk & Tourism Resources Program, Morgantown, WV 26506 USA.
通讯机构：
[Zhong, Yongde] C;Cent South Univ Forestry & Technol, Coll Tourism, Changsha 410004, Hunan, Peoples R China.
关键词：
forest landscape quality;evaluation index system;forest inventory database;national level;analytic hierarchy process (AHP)
摘要：
Forest landscape plays a critical role in the resource management and recreational planning of forest destinations. An assessment of forest landscape quality (FLQ) could reflect the distribution of landscape resources, hence identifying the hotpots and areas with high visual quality and protection values. The objective of this study is to propose, for the first time, a methodology for assessing FLQ at the national level. Based on China's forestry inventory database, the paper identified landform patterns and vegetative patterns as determinants (including 12 indicators) to establish an evaluation index system, and further implemented and mapped FLQ using the ArcGIS Engine platform. Results show high mountain ranges and tropical areas in China often have a high-quality forest landscape, while low FLQ scores are found in low mountains and foothills. The distribution of the four FLQ levels indicates most forest areas are featured with mediocre- or low- quality landscape values, and the differences of FLQ among different forest types are obvious. Furthermore, there is a relatively low correlation between the total forest area and the area of high-quality forest landscape. Overall, this study could contribute to enriching the existing assessment system for FLQ and to guiding the planning, policy development, and decision-making for China's forestry administration. © 2019 by the authors.
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How much will cash forest encroachment in rainforests cost? A case from valuation to payment for ecosystem services in China
作者：
Liu, Peng;Li, Wenwen;Yu, Yang;Tang, Ruchun;Guo, Xianming;...
期刊：
Ecosystem Services ,2019年38:100949 ISSN：2212-0416
通讯作者：
Zhang, Li
作者机构：
[Yu, Yang; Li, Wenwen; Zhang, Li; Liu, Peng; Tang, Ruchun] Beijing Normal Univ, Coll Life Sci, Key Lab Biodivers Sci & Ecol Engn, Minist Educ, Beijing 100875, Peoples R China.;[Yu, Yang] Cent South Univ Forestry & Technol, Inst Evolutionary Ecol & Conservat Biol, Changsha 410004, Hunan, Peoples R China.;[Guo, Xianming] Xishuangbanna Natl Nat Reserve, Res Inst, Jinghong 666100, Yunnan, Peoples R China.;[Wang, Bin] Xishuangbanna Natl Nat Reserve, Mengyang Management Stn, Jinghong 666100, Yunnan, Peoples R China.;[Yang, Biao] China West Normal Univ, Key Lab Southwest China Wildlife Resources Conser, Minist Educ, Nanchong 637002, Sichuan, Peoples R China.
通讯机构：
[Zhang, Li] B;Beijing Normal Univ, Coll Life Sci, Key Lab Biodivers Sci & Ecol Engn, Minist Educ, Beijing 100875, Peoples R China.
关键词：
Cash forest encroachment;Ecosystem services value;Payment for ecosystem services;Stakeholders;Tropical rainforest
摘要：
Over the past 50 years, cash forest encroachment presents a major threat to tropical rainforests in Southeast Asia. Economic and social benefits provided by natural conservation and the loss of these benefits through encroachment must be accounted for. Here, we evaluated ecosystem services provided by a protected rainforest, Mengyang Reserve in China, in comparison to a simulated scenario where possible encroachment occurs. Strict conservation (i.e., current state) provided more value from carbon stocks, greenhouse gas sequestration, domestic water supply, and nature-based recreation. Yet, local villagers still aspire to expand their cash forests, especially rubber and tea. Based on our conservative estimate, the cash tree encroachment basically satisfying the cultivation needs of the villagers would reduce the net value by approximately 50% per year. Through placing numerical values on loss and benefit, governmental policy makers and local stakeholders might be able to visualize the impact of conservation policy guidance. Horizontal transfer payment based on village-explicit opportunity costs should be proposed from the context-specific valuation of ecosystem services, and should include increased funding, simplifying the process, and expanding the scope of payments. Our results provide a useful lesson on the understanding the effectiveness of ecosystem services value in tropical reserves. © 2019 Elsevier B.V.
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英文
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Grazing Affects the Ecological Stoichiometry of the Plant-Soil-Microbe System on the Hulunber Steppe, China
作者：
Cao, Juan;Yan, Ruirui;Chen, Xiaoyong;Wang, Xu;Yu, Qiang;...
期刊：
Sustainability ,2019年11(19) ISSN：2071-1050
通讯作者：
Xin, Xiaoping
作者机构：
[Zhang, Yunlong; Yan, Ruirui; Wang, Xu; Hou, Lulu; Cao, Juan; Xin, Xiaoping; Yu, Qiang] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, University Pk, IL 60484 USA.;[Ning, Chen] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Zhang, Yongjuan] Inst Forestry & Grassland Urumqi City, Dept Grassland Technol Extens, Xinjiang 830000, Peoples R China.
通讯机构：
[Xin, Xiaoping] C;Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res St, Beijing 100081, Peoples R China.
关键词：
aboveground;belowground;microbial biomass;nutrient ratios;N-limitation;rhizosphere;temperate meadow steppe
摘要：
Grazing affects nutrient cycling processes in grasslands, but little is known by researchers about effects on the nutrient stoichiometry of plant-soil-microbe systems. In this study, the influence of grazing intensity (0, 0.23, 0.34, 0.46, 0.69, and 0.92 AU ha-1) on carbon (C), nitrogen (N) and phosphorus (P) and their stoichiometric ratios in plants, soil, and microbes was investigated in a Hulunber meadow steppe, Northeastern China. The C:N and C:P ratios of shoots decreased with grazing increased. Leaf N:P ratios <10 suggested that the plant communities under grazing were N-limited. Heavy grazing intensities increased the C:N and C:P ratios of microbial biomass, but grazing intensity had no significant effects on the stoichiometry of soil nutrients. The coupling relationship of C:N ratio in plant-soil-microbial systems was tightly significant compared to C:P ratio and N:P ratio according to the correlation results. The finding suggested grazing exacerbated the competition between plants and microorganisms for N and P nutrition by the stoichiometric changes (%) in each grazing level relative to the no grazing treatment. Therefore, for the sustainability of grasslands in Inner Mongolia, N inputs need to be increased and high grazing intensities reduced in meadow steppe ecosystems, and the grazing load should be controlled within G0.46. © 2019 by the authors.
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