摘要：
The acute toxicity of divalent mercury ion to Anguilla japonica from seawater and freshwater aquaculture was assessed. In particular, the effects of toxicity on the microstructures of the gill and liver tissues were examined using the hydrostatic method, without feeding, at a water temperature of 20 °C. The median lethal concentrations (LC50) of divalent mercury ion to fishes in seawater and freshwater over various durations were: 24 h = 1.637 and 1.428 mg/L; 48 h = 1.562 and 1.377 mg/L; 72 h = 1.530 and 1.284 mg/L; and 96 h = 1.442 and 1.228 mg/L. The safety mass concentrations were 0.1442 and 0.01228 mg/L, respectively. After exposure to divalent mercury ion, adhesion between the gill lamellae and massive cellular disintegration and necrotic shedding were observed in the gill tissue sections. The liver tissues underwent hyperemia and swelling, with the appearance of blood spots, swelling of the hepatocyte mitochondria, dilation of the rough endoplasmic reticulum, and intercellular inflation.
期刊：
OPEN HOUSE INTERNATIONAL,2019年44(3):130-135 ISSN：0168-2601
通讯作者：
Liu, Xiaoming
作者机构：
[Liu, Xiaoming] Hunan City Univ, Coll Architecture & Urban Planning, Yiyang, Peoples R China.;Hunan City Univ, Coll Municipal & Surveying Engn, Yiyang, Peoples R China.;Beijing Forestry Univ, Coll Landscape Architecture, Beijing, Peoples R China.
通讯机构：
[Liu, Xiaoming] H;Hunan City Univ, Coll Architecture & Urban Planning, Yiyang, Peoples R China.
关键词：
Sponge City;Hilly Area;Sponge Campus;Planning and Construction Study
摘要：
Under the background of rapid urbanization, all kinds of urban water problems have gradually come into being: local flooding frequently happens, water environment is deteriorated, water-supply is in tension, etc. Meanwhile, with rapid development of higher education in China, campus area and scale are gradually expanding, but traditional campus construction has many drawbacks. In order to promote sponge campus planning and construction of universities in hilly areas and provide demonstration windows for sponge city construction, based on deficiencies of campus construction of Hunan City University in the aspect of water resource utilization, we used ArcGis spatial analysis method, simulation method and comparative analysis method on Storm Water Management Model (SWMM) to establish sponge campus construction indexes, content system and optimal design strategies with objectives of campus water safety, water environment and water resource utilization. Results indicate that: difference between sponge campus planning and traditional campus planning mainly lies in rainfall management. We combed the design process of sponge campus planning in hilly areas from the perspective of rainfall management, and simulated the process of sponge facilities controlling the rainfall in the campus via computer model to verify reasonability of sponge facility planning and select the optimal planning and construction plan. This study has defined design process of sponge campus planning in hilly areas to a certain degree and provided a research basis for sponge campus planning and construction of universities, setting up a typical example and driving effects on solving urban local flooding problem and rainfall resource utilization in hilly areas.
期刊：
International Journal of Environmental Research and Public Health,2018年15(5):1032- ISSN：1661-7827
通讯作者：
Zhang, Qiuwen;Zhang, Gui
作者机构：
[Zhang, Xike; Zhang, Qiuwen] Huazhong Univ Sci & Technol, Sch Hydropower & Informat Engn, Wuhan 430074, Hubei, Peoples R China.;[Zhang, Xike; Nie, Zhiping] Hunan City Univ, Sch Municipal & Mapping Engn, Yiyang 413000, Peoples R China.;[Zhang, Gui; Que, Huafei] Cent South Univ Forestry & Technol, Key Lab Digital Dongting Lake Basin Hunan Prov, Changsha 410004, Hunan, Peoples R China.;[Gui, Zifan] Shenzhen Garden Management Ctr, Shenzhen 518000, Peoples R China.
通讯机构：
[Zhang, Qiuwen] H;[Zhang, Gui] C;Huazhong Univ Sci & Technol, Sch Hydropower & Informat Engn, Wuhan 430074, Hubei, Peoples R China.;Cent South Univ Forestry & Technol, Key Lab Digital Dongting Lake Basin Hunan Prov, Changsha 410004, Hunan, Peoples R China.
关键词：
daily land surface temperature;forecasting;data-driven;hybrid model;Ensemble Empirical Mode Decomposition (EEMD);Long Short-Term Memory (LSTM);Neural Network (NN);Dongting Lake basin
摘要：
Daily land surface temperature (LST) forecasting is of great significance for application in climate-related, agricultural, eco-environmental, or industrial studies. Hybrid data-driven prediction models using Ensemble Empirical Mode Composition (EEMD) coupled with Machine Learning (ML) algorithms are useful for achieving these purposes because they can reduce the difficulty of modeling, require less history data, are easy to develop, and are less complex than physical models. In this article, a computationally simple, less data-intensive, fast and efficient novel hybrid data-driven model called the EEMD Long Short-Term Memory (LSTM) neural network, namely EEMD-LSTM, is proposed to reduce the difficulty of modeling and to improve prediction accuracy. The daily LST data series from the Mapoling and Zhijaing stations in the Dongting Lake basin, central south China, from 1 January 2014 to 31 December 2016 is used as a case study. The EEMD is firstly employed to decompose the original daily LST data series into many Intrinsic Mode Functions (IMFs) and a single residue item. Then, the Partial Autocorrelation Function (PACF) is used to obtain the number of input data sample points for LSTM models. Next, the LSTM models are constructed to predict the decompositions. All the predicted results of the decompositions are aggregated as the final daily LST. Finally, the prediction performance of the hybrid EEMD-LSTM model is assessed in terms of the Mean Square Error (MSE), Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE), Root Mean Square Error (RMSE), Pearson Correlation Coefficient (CC) and Nash-Sutcliffe Coefficient of Efficiency (NSCE). To validate the hybrid data-driven model, the hybrid EEMD-LSTM model is compared with the Recurrent Neural Network (RNN), LSTM and Empirical Mode Decomposition (EMD) coupled with RNN, EMD-LSTM and EEMD-RNN models, and their comparison results demonstrate that the hybrid EEMD-LSTM model performs better than the other five models. The scatterplots of the predicted results of the six models versus the original daily LST data series show that the hybrid EEMD-LSTM model is superior to the other five models. It is concluded that the proposed hybrid EEMD-LSTM model in this study is a suitable tool for temperature forecasting.
作者机构：
[Wang, Meng-Xian] Cent S Univ, Changsha, Hunan, Peoples R China.;[Wang, Meng-Xian] Hunan City Univ, Coll Management, Yiyang, Peoples R China.;[Wang, Jian-qiang] Cent S Univ, Business Sch, Changsha, Hunan, Peoples R China.
通讯机构：
[Wang, Jian-qiang] C;Cent S Univ, Business Sch, Changsha, Hunan, Peoples R China.
关键词：
Online review;Cloud model;Online recommendation approach;Unbalanced linguistic label
摘要：
MIDI software and controllers are highly practical and modern teaching methods. They are very helpful for students to improve their music training and performance skills. Using tools or plug-ins to assist in algorithmic composing can do some mode work with less effort. With the MIDI controller controlling the volume of the 8 tracks, you can control the various buttons and parameters on the transporter and the 4-band EQ.
期刊：
JOURNAL OF INTELLIGENT & FUZZY SYSTEMS,2017年33(3):1953-1968 ISSN：1064-1246
通讯作者：
Wang, Jian-Qiang
作者机构：
[Wang, Meng-Xian; Wang, Jian-Qiang] Cent S Univ, Sch Business, Changsha 410083, Hunan, Peoples R China.;[Wang, Meng-Xian] Hunan City Univ, Coll Management, Yiyang, Peoples R China.;[Li, Lin] Hunan Univ, Sch Business, Changsha, Hunan, Peoples R China.
通讯机构：
[Wang, Jian-Qiang] C;Cent S Univ, Sch Business, Changsha 410083, Hunan, Peoples R China.
关键词：
Consumer heterogeneity;cloud model;cluster method;perceived value;unbalanced linguistic term set
摘要：
WEB 2.0 facilitates the bidirectional communication capabilities of online review, causing the personalization and asymmetry of online review. Despite the problem of online personalized recommendation system, the influence of consumer characteristics on consumer repurchase intention is insufficiently examined in the extant literature. To address this issue, this study proposes a new online personalized recommendation approach based on the perceived value of consumer characteristics. Two aspects of the proposed framework are addressed. The first aspect is the linguistic information transformation model, which converts online reviews to unbalanced linguistic label cloud. The second aspect is an online recommendation approach based on the linguistic information trans-formation model. A series of experiments are conducted based on a set of hotel assessment data from four cities and the electronic consumer record of four consumers selected randomly. Results show that the proposed cluster method is useful for identifying consumer characteristics and gives personalized recommendation. Overall, this method reduces computation and provides a reference point based on consumer characteristics.
作者机构：
[Liu Wenbin] Hunan City Univ, Coll Business, Yiyang 413049, Peoples R China.;[Bai Zhuoling] Cent S Univ, Sch Publ Adm, Changsha 410083, Peoples R China.
通讯机构：
[Liu Wenbin] H;Hunan City Univ, Coll Business, Yiyang 413049, Peoples R China.
关键词：
ecotourism economy;influence factors;model analysis;parallel data
摘要：
In the 1980s, the World Commission on Environment and Development first proposed the concept of 'sustainable development', while a series of environmental problems caused by the tourism industry began to emerge, many experts and scholars with some foresight proposed a win-win cooperation path between tourism and the environment ecotourism. With the popularisation of the environmental protection awareness, more and more people have joined the ranks of ecotourism. Based on analysis of the factors affecting the tourism economy proposed by scholars in the past, the authors combine the actual situation of Chinese current ecotourism economy and propose six factors which impact the ecological tourism in this paper. Furthermore, the authors use the economic theory to build the impact factor analysis model of Chinese ecotourism economy, find out the main factors affecting the development of the ecotourism economy, and provide guidance for the scientific development of eco-tourism. The results show that in its current condition, if China wants to promote the development of its ecotourism economy, it not only needs to increase investment from the economic level and other hard conditions, but also needs to make greater efforts from the citizen eco-awareness to train relevant professionals in ecotourism.
作者机构：
[Zhou, Z. -M.; Zhang, J. -F.; Long, Q.] Hunan City Univ, Sch Civil Engn, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Zhang, J. -F.] H;Hunan City Univ, Sch Civil Engn, Yiyang 413000, Hunan, Peoples R China.
关键词：
Multi-objective model;Traffic management strategy;Intersection signal controlling;Fuzzy analytic process;Q-learning algorithm
摘要：
Traffic signals are one of the main traffic management tools used to control traffic flow on the roads and should reflect traffic managers' intentions in different tasks. This paper showed a multi-objective optimization model, and its algorithm was aimed at the intricate structure of traffic control. First, the indexes of queuing lengths, delay times, and stop times were chosen as the evaluation indexes of optimization model. Second, the weight of the optimization indexes was confirmed with a fuzzy analytic process (FAP) according to the traffic managers' strategy. Finally, the multi-objective optimization model was solved with the Q-learning algorithm, and thus the signal control scheme of the intersection was produced in real-time while considering the traffic management strategy. The results of the simulation showed that the method could effectively improve traffic efficiency at the intersection, and at the same time, the intentions of the traffic managers could be fully embodied.
摘要：
This study aims to examine the changes in the role of government in Chinese elite sport development during three stages between 1949 and 2012. By analyzing the literature in terms of value orientation, governance scope and resource allocation methods, the study shows that the government functioned differently in each of the three stages. The changes to the government's involvement in Chinese elite sport development occurred in tandem with economic and social development in China.
