Suchergebnisse

With a sample of 46 Chinese small to medium-sized enterprises (SMEs), this study examines factors that might affect firms' use of financial statements to make decisions. Financial statements contain insightful information about potential risk and return implications of various decisions. A logit analysis shows that owners of Chinese SMEs use financial statements to make decisions according to the frequency of available financial statement information and their ability to interpret the information contained in the financial statements. These results can help owners of SMEs, educators and service providers understand which factors affect the use of financial statements and the process by which financial statements are incorporated into SMEs' decisions.

AbstractPrevious studies pay little attention to the role of technological progress in measuring urban land use efficiency, and ignore the interactions among total factor productivity, technological progress, pure technical efficiency and scale efficiency in the process of urban land use. To narrow the gaps, this research uses the Malmquist index approach to measure and decompose urban land use total factor productivity and a panel vector autoregressive model (PVAR) to investigate the interactions among urban land use total factor productivity, technological progress, pure technical efficiency, and scale efficiency in China from 2003 to 2016. This study shows that the overall urban land use efficiency increased at an annual growth rate of 0.7% in China from 2003 to 2016 while the growth rate of urban land use efficiency has generally decreased, which is reflected by the total factor productivity of urban land use. The total factor productivity fluctuates between 0.952 and 1.083 with a downward trend in 2003–2016. Technological progress, pure technical efficiency and scale efficiency all have positive effects on the improvement of urban land use efficiency, and there are differences in the order and degree of promotion. The improvement of scale efficiency is the most important measure to ensure the efficient use of urban land resources in the future.

The ocean is a very important arena in modern warfare where all marine powers deploy their military forces. Due to the complex environment of the ocean, underwater equipment has become a very threatening means of surprise attack in modern warfare. Therefore, the timely and effective detection of underwater moving targets is the key to obtaining warfare advantages and has important strategic significance for national security. In this paper, magnetic flux induction technology was studied with regard to the difficulty of detecting underwater concealed moving targets. Firstly, the characteristics of a magnetic target were analyzed and an equivalent magnetic dipole model was established. Secondly, the structure of the rectangular induction coil was designed according to the model, and the relationship between the target's magnetism and the detection signal was deduced. The variation curves of the magnetic flux and the electromotive force induced in the coil were calculated by using the numerical simulation method, and the effects of the different motion parameters of the magnetic dipole and the size parameters of the coil on the induced electromotive force were analyzed. Finally, combined with the wavelet threshold filter, a series of field tests were carried out using ships of different materials in shallow water in order to verify the moving target detection method based on magnetic flux induction technology. The results showed that this method has an obvious response to moving targets and can effectively capture target signals, which verifies the feasibility of the magnetic flux induction detection technology.