In order to evaluate the impact of Saihanba on ecological environment, we selecte 11 factors from three aspects build Ecological Environment Health Index (EEHI) evaluation model; Next, We use a combined weighting method combining Hierarchical Analysis, Entropy Weighting and Coefficient Variation determine weights each indicator. Then EEHI Seyhanba area 1962 2020 was calculated using TOPSIS; Fin...

According to the Statistical Yearbook of China's sports undertakings and the related Statistical Yearbook, as well as related indicators Construction principles, the sustainable development evaluation index system of China's sports is constructed. This essay uses entropy coefficient method to research on the weight of every subsystem and indicator in the Sports sustainable development and find ...

Event-based runoff–pollutant relationships have been the key for water quality management, but the scarcity of measured data results in poor model performance, especially for multiple rainfall events. In this study, a new framework was proposed for event-based non-point source (NPS) prediction and evaluation. The artificial neural network (ANN) was used to extend the runoff–pollutant relationsh...

Langmuir monolayers are modeled as systems of short chains, which are confined to a planar surface at one end, but free to move within the plane. The phase behavior is calculated in a mean field approximation, which combines the self consistent field method with elements of classical density functional theory. It is shown that phases with tilt order are unstable in systems of stiff chains, but ...

In the ideal world, cryptographic models take for granted that the secret sources (e.g. secret keys and other secret randomness) are derived from uniform distribution. However, in reality, we may only obtain some ‘weak’ random sources guaranteed with high unpredictability (e.g. biometric data, physical sources, and secrets with partial leakage). Formally, the security of cryptographic models is...

Firstly, this article uses the Entropy method to calculate weights of economic development and ecological environment indicators in eastern urban agglomeration Qinghai Province from 2005 2019. Secondly, calculated linear weighting functions construct evaluation models for development, respectively. The results show that comprehensive level cities is gradually rising, fluctuates slightly but ove...

Distributed Energy System (DES), a comprehensive energy utilization system distributed on user side, has been recognized as promising method that can improve efficiency, reduce greenhouse gas emissions, and achieve sustainable development. However, the DES is usually driven by various sources, it complex issue to decide composition of system. To incompleteness single subjective or objective ass...

business cost is acknowledged as one of the priorities in smes research. in thisstudy, the business cost of smes in shanghai was primarily measured using factor-entropy analysis method. the purpose of this study is to effectively resolve the issueof simplification and assignment evaluation index system on business costs of smesin shanghai. however, this study uses factor analysis to interpret t...