Starting from the theoretical mechanism of the impact of financial agglomeration on regional green innovation efficiency, and using panel data from 30 provinces in China from 2009 to 2017, this study calculates a financial agglomeration index and green innovation efficiency applying principal...

Technological innovation of private enterprises is an important condition for promoting high-quality development of China's economy. This paper matches the regional business environment data with the data of A-share private listed companies from 2017 to 2020 to study the impact of business...

The power frequency high voltage divider is widely used to measure the power frequency high voltage and it is an important measuring instrument for high voltage test. Whether it is accurate or not directly affects the insulation monitoring level of power equipment closely related to the safety...

Based on the GTEM chamber for the equivalent height detection method of UHF partial discharge tester, this paper simulates the electric field at the top of the GTEM window. The results show that the electric field strength changes significantly along the position of the top fenestration axis....

This study constructs a theoretical framework for technological progress (TP) on firm output (FOP) and examines the nonlinear influence between them. First, the empirical findings indicate that TP has a "positive U-shaped" correlation with FOP. This impact is particularly pronounced among firms...