Whether Environmental Regulation Can Improve the Quality of Economic Development – Taking Shandong Province as an example

Wang Shuyang,Chen Chao 부산대학교 중국연구소 2023 Journal of China Studies Vol.26 No.3

Since the implementation of the reform and opening-up policies, Chinese economy has rapidly advanced towards the second-largest in the world. However, at the same time of rapid economic development, environmental pollution, excessive energy consumption and other problems have also become increasingly prominent. Environmental pollution, in particular, contributes approximately 8-15% of China's economic losses. Shandong, a northern Chinese province with a heavy industrial presence, is also grappling with severe environmental pollution challenges. To solve the problems, Shandong has to get rid of the "high energy consumption, high pollution, high emissions and low efficiency" type of economic development mode, then turn to the stage of high-quality economic development. In this process, how to achieve the coordinated development between the improvement of the quality of economic development and environmental improvement has become the focus of attention of all sectors of society. Bring environmental regulation into force is one of the important means to improve environmental problems. Whether the role of environmental regulation contributes to the improvement of the quality of economic development, and how environmental regulation affects the quality of economic development are the key research directions in the field of environmental economics at present. Therefore, this study takes Shandong Province of China as the research object, attempting to answer the above questions through theoretical research and empirical analysis. To calculate the comprehensive index of economic development quality and environmental regulation, the statistical index data of Shandong Province from 1994 to 2019 is used by means of the entropy weight method. Besides, an empirical model was also established in order to verify the impact and internal mechanism of environmental regulation on the economic development quality of Shandong Province. The research shows that there exists a U-shaped relationship between environmental regulation and the quality of economic development in Shandong Province, that is, strengthening environmental regulation at the beginning will inhibit the quality of economic development in Shandong Province, but when the intensity of environmental regulation is increased to a certain extent, environmental regulation will promote its improvement, instead. In addition, the core conclusion still holds after the explanatory variable environmental regulation was replaced. The transmission mechanism analysis shows that environmental regulation can improve the quality of economic development in Shandong Province through green technology innovation effect, industrial upgrading effect and productivity effect, but among of which the green technology innovation effect is relatively more significant. Therefore, it is suggested that the government departments of Shandong Province should further improve the environmental regulation policy, rationally formulate the intensity of environmental regulation; it should improve the independent innovation system, guide the upgrading of industrial structure, raise production efficiency, and give full play to the effect of environmental regulation in promoting the quality improvement of economic development.

Numerical investigation of effects of rotating downdraft on tornado-like-vortex characteristics

Shuyang Cao,Mengen Wang,Jinwei Zhu,Jinxin Cao,Tetsuro Tamura,Qingshan Yang 한국풍공학회 2018 Wind and Structures, An International Journal (WAS Vol.26 No.3

Appropriate modeling of a tornado-like vortex is a prerequisite when studying the near-ground wind characteristics of a tornado and tornado-induced wind loads on structures. Both Ward- and ISU-type tornado simulators employ guide vanes to induce angular momentum to converge flow in order to generate tornado-like vortices. But in the Ward-type simulator, the guide vanes are mounted near the ground while in the ISU-type they are located at a high position to allow vertical circulation of flow that creates a rotating downdraft to generate a tornado-like vortex. In this study, numerical simulations were performed to reproduce tornado-like vortices using both Ward-type and ISU-type tornado simulators, from which the effects of rotating downdraft on the vortex characteristics were clarified. Particular attention was devoted to the wander of tornado-like vortices, and their dependences on swirl ratio and fetch length were investigated. The present study showed that the dynamic vortex structure depends significantly on the vortex-generating mechanism, although the time- averaged structure remains similar. This feature should be taken into consideration when tornado-like-vortex simulators are utilized to investigate tornado-induced wind forces on structures.

Effects of inflow turbulence and slope on turbulent boundary layer over two-dimensional hills

Wang, Tong,Cao, Shuyang,Ge, Yaojun Techno-Press 2014 Wind and Structures, An International Journal (WAS Vol.19 No.2

The characteristics of turbulent boundary layers over hilly terrain depend strongly on the hill slope and upstream condition, especially inflow turbulence. Numerical simulations are carried out to investigate the neutrally stratified turbulent boundary layer over two-dimensional hills. Two kinds of hill shape, a steep one with stable separation and a low one without stable separation, two kinds of inflow condition, laminar turbulent, are considered. An auxiliary simulation, based on the local differential quadrature method and recycling technique, is performed to simulate the inflow turbulence be imposed at inlet boundary of the turbulent inflow, which preserves very well in the computational domain. A large separation bubble is established on the leeside of the steep hill with laminar inflow, while reattachment point moves upstream under turbulent inflow condition. There is stable separation on the side of low hill with laminar inflow, whilw not turbulent inflow. Besides increase of turbulence intensity, inflow can efficiently enhance the speedup around hills. So in practice, it is unreasonable to study wind flow over hilly terrain without considering inflow turbulence.

Effects of inflow turbulence and slope on turbulent boundary layers over two-dimensional hills

Tong Wang,Shuyang Cao,Yaojun Ge 한국풍공학회 2014 Wind and Structures, An International Journal (WAS Vol.19 No.2

The characteristics of turbulent boundary layers over hilly terrain depend strongly on the hill slope and upstream condition, especially inflow turbulence. Numerical simulations are carried out to investigate the neutrally stratified turbulent boundary layer over two-dimensional hills. Two kinds of hill shape, a steep one with stable separation and a low one without stable separation, and two kinds of inflow condition, laminar and turbulent, are considered. An auxiliary simulation, based on the local differential quadrature method and the recycling technique, is performed to simulate the inflow turbulence to be imposed at the inlet boundary of the simulation with turbulent inflow, which preserves very well in the computational domain. A large separation bubble is established on the leeside of the steep hill with laminar inflow, while the reattachment point moves upstream under turbulent inflow condition. There is stable separation on the lee side of the low hill with laminar inflow, while not with turbulent inflow. Besides increase of turbulence intensity, inflow turbulence can efficiently enhance the speedup around hills.So in practice, it is unreasonable to study wind flow over hilly terrain without considering inflow turbulence.

POD-based analysis of time-resolved tornado-like vortices

Mengen Wang,Shuyang Cao,Jinxin Cao 한국풍공학회 2021 Wind and Structures, An International Journal (WAS Vol.33 No.1

In this study, three representative configurations of tornado-like vortices, i.e., single vortex, vortex breakdown and multi-vortex, are numerically simulated using large-eddy simulation (LES). Proper orthogonal decomposition (POD) is firstly employed to decompose flow-field snapshots into a series of orthogonal flow patterns (POD modes) and time-dependent coefficients. Then, a conditional-average analysis is conducted to obtain the four kinds of conditionally-averaged flow fields, which are then compared with instantaneous and ensemble-averaged flow fields. Next, a quadruple POD analysis is performed to decompose the instantaneous flow field into mean, coherent, transition and noise components. Finally, a qualitative analysis is implemented for unsteady vortex motions in horizontal and vertical planes. Results show that the conditional average shows larger-scale coherent structures than the classical ensemble average, while it loses the small-scale turbulent fluctuations present in instantaneous flow. The tornado vortex structure is controlled by the mean component in the single-vortex stage. With increase in swirl ratio, the tornado vortex evolves from single-vortex, to vortex-breakdown to multi-vortex, companied by kinetic energy transference to coherent and transition components. The horizontal and vertical vortex motions are essentially the results of horizontal and vertical velocity perturbations.

Numerical investigation of effects of rotating downdraft on tornado-like-vortex characteristics

Cao, Shuyang,Wang, Mengen,Zhu, Jinwei,Cao, Jinxin,Tamura, Tetsuro,Yang, Qingshan Techno-Press 2018 Wind and Structures, An International Journal (WAS Vol.26 No.3

Appropriate modeling of a tornado-like vortex is a prerequisite when studying the near-ground wind characteristics of a tornado and tornado-induced wind loads on structures. Both Ward- and ISU-type tornado simulators employ guide vanes to induce angular momentum to converge flow in order to generate tornado-like vortices. But in the Ward-type simulator, the guide vanes are mounted near the ground while in the ISU-type they are located at a high position to allow vertical circulation of flow that creates a rotating downdraft to generate a tornado-like vortex. In this study, numerical simulations were performed to reproduce tornado-like vortices using both Ward-type and ISU-type tornado simulators, from which the effects of rotating downdraft on the vortex characteristics were clarified. Particular attention was devoted to the wander of tornado-like vortices, and their dependences on swirl ratio and fetch length were investigated. The present study showed that the dynamic vortex structure depends significantly on the vortex-generating mechanism, although the time-averaged structure remains similar. This feature should be taken into consideration when tornado-like-vortex simulators are utilized to investigate tornado-induced wind forces on structures.

The impact of organizational innovation climate on employee innovation behavior in emissions control enterprises: an empirical study in China

김동주,Wang Shuyang,Jia Hongda 부산대학교 중국연구소 2023 Journal of China Studies Vol.26 No.3

To mitigate climate change, emissions control enterprises need to innovate to strike a balance between corporate economics and the environment. Businesses are the mainstay of innovation in the marketplace, but innovation has its roots in employees, and the ability of employees to effectively implement individual innovative behavioral activities within the organization is an essential factor affecting a business's ability to innovate. Then how to promote employee's innovative behavior in emissions control enterprises? Research has shown that a positive climate for organizational innovation stimulates employee creativity, encouraging them to introduce fresh ideas and solutions to problems. Organizational commitment can increase employees' sense of belonging and identity and motivate them to contribute to the organization's growth. Psychological empowerment can increase employee autonomy and decision-making power, demonstrate creativity and initiative, and make them more willing to introduce fresh ideas and try different approaches. To promote the low-carbon development of China's emissions control enterprises and improve the innovation behavior of their employees. The study intends to provide practical policies and practical recommendations for improving employee innovation behavior, while providing some references for related industries. To this end, a total of 607 effective questionnaires were collected from emissions controls enterprises' employees in China. SPSS 26.0 and AMOS 24.0 were used for confirmation reliability analysis, exploratory factor analysis, confirmation factor analysis, path analysis and mediation effect analysis. The results show the organizational innovation climate of Chinese emission control enterprises has a positive (+) effect on employee innovation behavior; organizational commitment and psychological empowerment have a positive (+) effect on employee innovation behavior. In an organizational innovation climate, organizational commitment and psychological empowerment have a moderating effect on employee innovative behavior.

Biomass Pyrolysis Fuel Research of the Technology about Heating Through Heat-carrier

Liu Xin,Wang Shuyang,Sunbing Xiao,Xueguo Lei,Cao Youwei 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.4

With the rapid development of biomass pyrolysis fuel technology, the technology about heating through heat-carrier as an important part of biomass pyrolysis fuel process is also to mature. However, since there is a relatively great temperature difference after carrier heating, the biomass pyrolysis products and oil production rate are affected ultimately. Therefore, this article first introduces several kinds of biomass pyrolysis fuel technology about heating through heat-carrier, and then leads to a design of a fine temperature control device through analysis and comparison to keep the initial temperature difference within ±10 ℃ for the carrier in main reactor so that it can satisfy the temperature demand of biomass pyrolysis and promote the industrialization of biomass pyrolysis fuel.

Equivalent static wind loads analysis of tall television towers considering terrain factors of hilltops based on force measurement experiment

Ke, Shitang,Wang, Hao,Ge, Yaojun,Zhao, Lin,Cao, Shuyang Techno-Press 2017 Structural Engineering and Mechanics, An Int'l Jou Vol.63 No.4

Wind field in mountainous regions demonstrates unique distribution characteristic as compared with the wind field of the flat area, wind load and wind effect are the key considerations in structural design of television towers situated in mountainous regions. The television tower to be constructed is located at the top of Xiushan Mountain in Nanjing, China. In order to investigate the impact of terrain factors of hilltops on wind loads, firstly a wind tunnel test was performed for the mountainous area within 800m from the television tower. Then the tower basal forces such as bending moments and shear strength were obtained based on high frequency force balance (HFFB) test. Based on the experiments, the improved method for determining the load combinations was applied to extract the response distribution patterns of foundation internal force and peak acceleration of the tower top, then the equivalent static wind loads were computed under different wind angles, load conditions and equivalent goals. The impact of terrain factors, damping ratio and equivalent goals on the wind load distribution of a television tower was discussed. Finally the equivalent static wind loads of the television tower under the 5 most adverse wind angles and 5 most adverse load conditions were computed. The experimental method, computations and research findings provide important references for the anti-wind design of high-rise structure built on hilltops.

Interleukin-6 signaling regulates hematopoietic stem cell emergence

Ruxiu Tie,Honghu Li,Shuyang Cai,Zuyu Liang,Wei Shan,Binsheng Wang,Yamin Tan,Weiyan Zheng,He Huang 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-

Hematopoietic stem cells (HSCs) produce all lineages of mature blood cells for the lifetime of an organism. Invertebrates, HSCs derive from the transition of the hemogenic endothelium (HE) in the floor of the embryonic dorsalaorta. Most recently, a series of proinflammatory factors, such as tumor necrosis factor-α, interferon-γ, and Toll-likereceptor 4, have been confirmed to play a key role in HSC specification. However, the full complement of necessarysignaling inputs remains unknown to date. Here, we show that interleukin-6R (IL6R) via IL6 is required and sufficient forHSC generation. We found that Notch activates IL6R by regulating its expression in the HE and in HSCs. The secretionof IL6 mainly originates from HSC-independent myeloid cells, but not from HSCs and their adjacent vascularendothelial cells. In addition, blocking IL6 signaling does not affect vascular development or the production ofprimitive erythrocytes. Taken together, our results uncover a previously obscure relationship between IL6 signaling andHSC production and provide new insights into HSC regeneration using proinflammatory factors in vitro.