A method is proposed that uses renewable solar energy to supply energy for the exploitation of marine gas hydrates using thermal stimulation. The system includes solar cells, which are installed on the platform and a distributor with electric heaters. The solar module is connected with electric...

A one-dimensional dynamic model of polydisperse granular mixture with a power-law size distribution is presented, in which the particles are subject to inelastic mutual collisions and driven by Gaussian white noise. The particle size distribution of the mixture has the fractal characteristic,...

CEO entrenchment distorts firms’ liquidity policy because entrenched CEOs and shareholders have conflicting preferences for liquidity. We investigate the association between firms’ liquidity level/mix and entrenchment within a system model accounting for endogeneity. Several results are...

China is now the largest CO2 polluter in the world. However, the renewable energy policies in China are controversial and one can easily draw the wrong conclusions that Chinese renewable energy development has taken off from a surface assessment of the policies. By investigating and summarizing...

As an important index for measuring the value-creating ability of enterprises, Economic Value Added (EVA) proposed a new concept on profit of enterprises, which took the application efficiency of capital in a comprehensive way. Taking listed companies in Shandong Island blue economic zone, as...

type="main" xml:lang="en" <title type="main">Summary</title> <p>Copper (Cu) is an essential but supply-restricted resource in China. Characterization of in-use stocks can provide useful instruction for the future recycling of copper. This article attempts to estimate copper in-use stocks in a Chinese city. To this purpose,...</p>

A biased coinflip Ansatz provides a stochastic regional scale land surface climate model of minimum complexity, which represents physical and stochastic properties of an ideal rainfall–runoff chain. The solution yields the empirically derived Schreiber formula as an Arrhenius-type equation of...

Regional energy plans play a significant role in promoting the sustainable development of different regions in China. Most regions of China have formulated their energy plans. Selecting a reasonable sustainable energy plan is complex and involves a number of interactive criteria (e.g....