scholarly journals Study on water resources management in Henan Province based on principal component analysis

2019 ◽  
Vol 344 ◽  
pp. 012061
Author(s):  
L J Li ◽  
S Y Li
Keyword(s):  
Principal Component Analysis ◽  
Water Resources ◽  
Water Resources Management ◽  
Principal Component ◽  
Component Analysis ◽  
Henan Province ◽  
Resources Management

scholarly journals Evaluation Methods of Water Environment Safety and Their Application to the Three Northeast Provinces of China

2019 ◽  
Vol 11 (18) ◽  
pp. 5135 ◽  
Author(s):  
Li ◽  
Sun ◽  
Yuan ◽  
Liu
Keyword(s):  
Principal Component Analysis ◽  
Water Resources ◽  
Chemical Oxygen Demand ◽  
Water Environment ◽  
Oxygen Demand ◽  
Principal Component ◽  
Component Analysis ◽  
Analysis Method ◽  
Industry Output ◽  
Per Capita

Focusing on the topic of water environment safety of China, this paper has selected the three northeast provinces of China as the research object due to their representativeness in economic development and resource security. By using the Entropy Weight Method, the Grey Correlation Analysis Method, and the Principal Component Analysis Method, this paper has first constructed a water environment safety evaluation system with 17 indicators from the economic, environmental, and ecological aspects. Furthermore, this paper has screened the initially selected indicators by the Principal Component Analysis Method and finally determined 11 indicators as the evaluation indicators. After indicator screening, this paper has adopted the improved Fuzzy Comprehensive Evaluation Method to evaluate the water environment safety of the three northeast provinces of China and obtained the change in water environment safety of different provinces from 2009 to 2017. The results show that the overall water environment safety of the region had improved first but worsened afterward, and that in terms of water safety level, Jilin Province ranked first, followed by Heilongjiang Province and Liaoning Province. The three factors that have the greatest impact on the water environment safety of the three provinces are: Liaoning—Chemical Oxygen Demand (score: 17.10), Per Capita Disposable Income (score: 13.50), and Secondary Industry Output (score: 11.50); Heilongjiang—Chemical Oxygen Demand (score: 18.64), Per Capita Water Resources (score: 12.75), and Concentration of Inhalable Particles (score: 10.89); Jilin—Per Capita Water Resources (score: 15.75), Chemical Oxygen Demand (score: 14.87), and Service Industry Output (score: 11.55). Based on analysis of the evaluation results, this paper has proposed corresponding policy recommendations to improve the water environment safety and promote sustainable development in the northeast provinces of China.

The Establishment of Principal Component Analysis Assessment Model for Drinking Water Quality of City Resource

2014 ◽  
Vol 675-677 ◽  
pp. 960-963
Author(s):  
Li Feng Sun ◽  
Qing Jie Qi ◽  
Xiao Liang Zhao ◽  
Rui Feng Li
Keyword(s):  
Water Quality ◽  
Principal Component Analysis ◽  
Drinking Water ◽  
Water Resources ◽  
Principal Component ◽  
Water Source ◽  
Component Analysis ◽  
Assessment Model ◽  
Affecting Factors

In order to effectively control pollution of sources of drinking water, improve the environmental quality of drinking water and guarantee the sanitation of drinking water, it is very important to assess water source quality. Main factors of drinking water were identified. Then principal component analysis was used to establish assessment model of drinking water, which could ensure that under the condition that the primitive data information was in the smallest loss, a small number of variables were used to replace the integrated multi-dimensional variables to simplify the data structure. The weightings of principal component were determinated as theirs pollution ratios. This paper was based on the theoretical study of principal component analysis, used the monitoring data on water quality of the main water resources in 2013 to evaluate and analyze the water quality of water resources. Analysis content included the main affecting factors, cause of pollution and the degree of pollution.The resulted showed that: the main affecting factors on water quality of Fo Si water source was CODMn, TP, fluoride.

scholarly journals Finanças pessoais: uma análise do comportamento de estudantes de Ciências Contábeis

2018 ◽  
Vol 17 (3) ◽  
pp. 819-840
Author(s):  
Mariana Ferreira Soares Marques ◽  
Renata Turola Takamatsu ◽  
Bruna Camargos Avelino
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Personal Finance ◽  
Self Control ◽  
Accounting Students ◽  
Short Term ◽  
Resources Management ◽  
Credit Supply ◽  
Payment Methods

Resumo: A forma como as pessoas lidam com suas finanças pessoais é um tema cada vez mais relevante diante da complexidade dos meios de pagamento atuais, das formas de investimento existentes e da oferta do crédito restrita. Neste estudo propõe-se a analisar como os estudantes de Ciências Contábeis da Universidade Federal de Minas Gerais (UFMG) têm gerenciado suas finanças, a propensão ao endividamento ou à poupança desses indivíduos e a influência de aspectos comportamentais — o autocontrole, a visão de curto prazo, a preferência por crédito e a propensão a planejar — na gestão dos recursos. Foi realizado um estudo quantitativo, com a aplicação de questionários a 104 estudantes. Os resultados da pesquisa foram analisados por meio da análise fatorial, testes de correlação e de diferenças de médias. Observou-se, de forma geral, que os acadêmicos de Ciências Contábeis são altamente bancarizados e, em grande parte, possuem poupança e realizam depósitos regulares. Foi identificada uma maior propensão à poupança em alunos inseridos em famílias com renda superior a R$ 5.201,00 e uma aversão a crédito de estudantes que poupam com a finalidade de prevenir emergências. A idade dos alunos não esteve correlacionada a nenhum padrão de comportamento.Palavras-chave: Finanças Pessoais. Propensão ao endividamento. Propensão à poupança.Personal finance: an analysis of Undergraduate Accounting students behavior  Abstract: The ways in which people deal with money is relevant given the complexity of current payment methods, existing types of investment and the credit supply restrictions. This research's aim was to assess how Undergraduate Accounting students manage their finances, their propensity for getting into debt, propensity to save and analyze how behavioral aspects (self-control, short-term thinking, preference for credit and propensity to plan) influence resources’ management. We have applied a questionnaire to 104 students.  We used principal component analysis, correlations and tests of differences between means. The results suggest that Accounting students are highly banked and, most of them have savings account and make periodic deposits. We have identified a higher Propensity to save money in families with incomes greater than R$ 5.201,00 and debt aversion of students who save to prevent emergencies. Student's age was not correlated with any behavior pattern.Keywords: Personal Finance. Propensity to save. Propensity for getting into debt.

scholarly journals A Harmony-Based Approach for Assessing and Regulating Human-Water Relationships: A Case Study of Henan Province in China

Water ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 32
Author(s):  
Qiting Zuo ◽  
Wen Li ◽  
Heng Zhao ◽  
Junxia Ma ◽  
Chunhui Han ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Evaluation Method ◽  
Water System ◽  
Henan Province ◽  
Water Control ◽  
Resources Management ◽  
Harmony Theory ◽  
Water Resources Protection

The conflict of the human-water relationships (HWR) has further increased the water-related risks, such as water environment deterioration, water shortages, and even regional violent conflicts for obtaining usable water resources. Knowing how to evaluate and regulate the discordant HWR to form a balanced growth between sustainable socio-economy and water resources protection has become a critical issue in water resources management. The harmony theory method, which provides a new perspective for solving the conflict between humans and water, has been widely used in current studies. However, this method focuses less on the quantitative study of the balance status of HWR. This study proposes a harmony theory-based HWR evaluation method that contains a systematic process of harmony assessment, indicator identification, harmony balance constraints, and harmony regulation for assessing and regulating the discordant HWR. The Henan Province of China, which has a complicated HWR, was selected as a case study to apply and verify the approach proposed in this study. The results indicated that (1) Henan Province showed a poor harmony status. The human–water harmony degree of 18 distinctions in the province varied from 0.41 to 0.76, showing an increasing trend from 2006 to 2018, indicating that the HWR was gradually improving in recent years. (2) The human–water harmony degree showed that HWR in the southwest part of Henan Province, with less human activities, was better than that in its northeast part, which had faster social development. Sanmenxia City, located in the west part of the province, had the highest human–water harmony degree because of the recent water control projects implemented in the city, indicating that human production measures could effectively help improve HWR. (3) At present, Henan Province has serious discordant indicators in these three aspects (water system health, humanistic system development, and human-water system coordination), which proves that it is still facing pressure from both socio-economy sustainable development and water resources protection. Our results provide insight into water resources management in Henan Province and other similar regions.

Evaluation of Regional Water Resources Carrying Capacity in Yan'an Based on Principal Component Analysis

2013 ◽  
Vol 864-867 ◽  
pp. 2331-2334
Author(s):  
Xiao Jun Liu ◽  
Jia Wang
Keyword(s):  
Principal Component Analysis ◽  
Water Resources ◽  
Sewage Treatment ◽  
Temporal Distribution ◽  
Principal Component ◽  
Environmental Water ◽  
Component Analysis ◽  
Treatment Rate ◽  
Factors Affecting ◽  
Development And Utilization

Yan'an is the center of political, economic, cultural and military in Shanbei, and is also a city of water resources extremely shortage. This paper by using the principal component analysis to select 13 indicators and establish the indicators system, two main ingredients reflect Yan'an WRCC, thus evaluate Yan'an WRCC in 2006 - 2011 timing data. Results show that: rate of urbanization, ecological and environmental water use rate, per capita GDP, rate of water resources development and utilization and sewage treatment rate are the main factors affecting Yan'an WRCC; 2006-2011 Yan'an in the temporal distribution of WRCC overall downward trend, the development and utilization of water resources potential in Yan'an weaker. Finally put forward reasonable suggestions aim at future sustainable development and utilization of water resources in Yan'an.

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