Research on the Integration and Development of Sports Industry in the Yangtze River Delta in Shanghai

Donghai Ye,Xiang Zhao,Shun Wang 동아시아무역학회 2020 Journal of East Asian Trade(JEAT) Vol.2 No.2

Purpose - The implementation of the national strategy of Yangtze River Delta integration development is one of the three major tasks given by the state to Shanghai to take the lead in realizing exploratory, innovative and leading development. Design/Methodology/Approach - By using the methods of literature review, investigation and expert interview, this paper analyzes the problem of promoting the integration of sports industry in the Yangtze River Delta in Shanghai. Findings - The results show that Shanghai should abide by the function orientation of system innovation leading area, high-quality development demonstration area, bridgehead of international competition and regional development radiation source in participating in the construction of sports industry integration in the Yangtze River Delta, construct and play the dynamic structure and role of local government to participate in the integration construction, which will promote the integration of sports property rights market, build modern sports industry system and develop promotion system It is important to develop consumption pilot, improve sports science and technology innovation ability and implement obesity sports intervention. Research Implications - We should enhance the mass basis of integrated development with cultural identity, strengthen the institutional guarantee of integrated development with mechanism improvement, and create practical space for integrated development with strategic accommodation.

Characteristics of Observed Tropopause Height Derived From L-band Sounder Over the Tibetan Plateau and Surrounding Areas

Xiaoling Jiang,Donghai Wang,Jianjun Xu,Yuwei Zhang,Long S. Chiu 한국기상학회 2017 Asia-Pacific Journal of Atmospheric Sciences Vol.53 No.1

The tropopause, which plays important roles in the stratosphere-troposphere exchange, is an interface between the troposphere and stratosphere. In this study, the characteristics of tropopause is investigated with the high vertical resolution daily sounding data during the period from 2008 to 2014 collected by the network of L-band sounder at 119 observational stations over Mainland China developed by the China Meteorological Administration (CMA). The results show that the tropopause height increases from the north to the south and has little correspondence with the station elevation. In addition, the spectral analyses and wavelet analyses are also performed to understand the intraseasonal variations of the tropopause. The results show that usually there are seasonal cycles with maximum in summer and minimum in winter. The strongest spectral band with period of 25-35 days is observed over the Southeast China. Besides, 20-60 days signals over the Changjiang River basin and the Tibetan Plateau has a good correlation to the Oceanic Niño Index (ONI), suggesting that the behavior of tropopause over the regions between 30oN and 40oN could relate to the Niño events.

Active Disturbance Rejection Control for Fluidized Bed Combustor

Zhenlong Wu,Donghai Li,Yali Xue,Lingmei Wang,Jing Wang 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10

Active disturbance rejection control (ADRC) is applied in fluidized bed combustor (FBC) facing some control difficulty. By analyzing the difficulties, ADRC controllers are designed for the power loop and the bed temperature loop of FBC system. The simulation demonstrates both loops with ADRC have a better tracking speed and a stronger robustness, the power loop can inhibit the input and output disturbance quickly and the temperature loop has a slight advantage in disturbance rejection. Besides, manipulated variables is analyzed by the phase diagrams.

An Evaluation of Ice Nuclei Characteristics from the Long-term Measurement Data over North China

Yin Jinfang,Wang Donghai,Zhai Guoqing 한국기상학회 2012 Asia-Pacific Journal of Atmospheric Sciences Vol.48 No.2

An attempt was made to delineate the characteristics of ice nuclei (IN) over North China using the ground-based measurement data from 1963-2003. The results show that: (1) the IN concentrations increased during the period from 1963-1996, but decreased after 2000; (2) the average IN concentrations range from 1.0 to 26.3,3.6 to 78.9, 19.2 to 627.3, and 92.9 to 5285.0 L−1 at temperature −15,−20, −25, and −30oC, with the overall average of 7.8, 20.6, 167.7,and 890.6 L−1, respectively; and (3) the number concentration of active IN increased nearly exponentially with decreasing temperature,with the slope (ranging from 0.11 to 0.42oC−1) being of a narrow range in a log-linear coordinate; the regression equations for the western central China and the eastern central China can be expressed as N(T) = 0.0396 exp (−0.317ΔT) and N(T) = 0.1496 exp (−0.299ΔT),respectively. The present study may be useful toward applications in models for predicting IN effects on the cloud, precipitation and climate over North China.

Pycnogenol attenuates atherosclerosis by regulating lipid metabolism through the TLR4–NF-κB pathway

Hong Luo,Jing Wang,Chenhui Qiao,Ning Ma,Donghai Liu,Weihua Zhang 생화학분자생물학회 2015 Experimental and molecular medicine Vol.47 No.-

Atherosclerosis is a leading cause of death worldwide and is characterized by lipid-laden foam cell formation. Recently,pycnogenol (PYC) has drawn much attention because of its prominent effect on cardiovascular disease (CVD). However, its protective effect against atherosclerosis and the underlying mechanism remains undefined. Here PYC treatment reduced areas of plaque and lipid deposition in atherosclerotic mice, concomitant with decreases in total cholesterol and triglyceride levels and increases in HDL cholesterol levels, indicating a potential antiatherosclerotic effect of PYC through the regulation of lipid levels. Additionally, PYC preconditioning markedly decreased foam cell formation and lipid accumulation in lipopolysaccharide (LPS)-stimulated human THP-1 monocytes. A mechanistic analysis indicated that PYC decreased the lipid-related protein expression of adipose differentiation-related protein (ADRP) and adipocyte lipid-binding protein (ALBP/aP2) in a dose-dependent manner. Further analysis confirmed that PYC attenuated LPS-induced lipid droplet formation via ADRP and ALBP expression through the Toll-like receptor 4 (TLR4) and nuclear factor-κB (NF-κB) pathway, because pretreatment with anti-TLR4 antibody or a specific inhibitor of NF-κB (PDTC) strikingly mitigated the LPS-induced increase in ADRP and ALBP. Together, our results provide insight into the ability of PYC to attenuate bacterial infection-triggered pathological processes associated with atherosclerosis. Thus PYC may be a potential lead compound for the future development of antiatherosclerotic CVD therapy.

Numerical Study of the Role of Microphysical Latent Heating and Surface Heat Fluxes in a Severe Precipitation Event in the Warm Sector over Southern China

Jin-Fang Yin,Donghai Wang,Zhao-Ming Liang,Chong-Jian Liu,Guo-Qing Zhai,Hong Wang 한국기상학회 2018 Asia-Pacific Journal of Atmospheric Sciences Vol.54 No.1

Simulations of the severe precipitation event that occurred in the warm sector over southern China on 08 May 2014 are conducted using the Advanced Weather Research and Forecasting (WRF-ARWv3.5.1) model to investigate the roles of microphysical latent heating and surface heat fluxes during the severe precipitation processes. At first, observations from surface rain gauges and groundbased weather radars are used to evaluate the model outputs. Results show that the spatial distribution of 24-h accumulated precipitation is well reproduced, and the temporal and spatial distributions of the simulated radar reflectivity agree well with the observations. Then, several sensitive simulations are performed with the identical model configurations, except for different options in microphysical latent heating and surface heat fluxes. From the results, one of the significant findings is that the latent heating from warm rain microphysical processes heats the atmosphere in the initial phase of the precipitation and thus convective systems start by self-triggering and selforganizing, despite the fact that the environmental conditions are not favorable to the occurrence of precipitation event at the initial phase. In the case of the severe precipitation event over the warm sector, both warm and ice microphysical processes are active with the ice microphysics processes activated almost two hours later. According to the sensitive results, there is a very weak precipitation without heavy rainfall belt when microphysical latent heating is turned off. In terms of this precipitation event, the warm microphysics processes play significant roles on precipitation intensity, while the ice microphysics processes have effects on the spatial distribution of precipitation. Both surface sensible and latent heating have effects on the precipitation intensity and spatial distribution. By comparison, the surface sensible heating has a strong influence on the spatial distribution of precipitation, and the surface latent heating has only a slight impact on the precipitation intensity. The results indicate that microphysical latent heating might be an important factor for severe precipitation forecast in the warm sector over southern China. Surface sensible heating can have considerable influence on the precipitation spatial distribution and should not be neglected in the case of weak large-scale conditions with abundant water vapor in the warm sector.

Shellix : An Efficient Approach for Shellcode Detection

Mo Chen,Changzhen Hu,Donghai Tian,Xin Wang,Yuan Liu,Ning Li 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.6

Code injection attacks are widely used by attackers to compromise computer systems. Attackers could obtain the control of a victim's computer system by injecting shellcode to the vulnerable program. The existing solutions to detect shellcode can be grouped into two categories: static analysis and dynamic analysis. Static analysis can detect shellcode efficiently, but cannot handle the shellcode that employs obfuscation techniques. Dynamic analysis is able to detect the obfuscated shellcode, however it is still limited to detect the recent virtualization-aware shellcode. In this paper, we present a novel shellcode detection approach without using any virtualization technology. We implement our approach based on the commodity OS kernel which is compatible to the existing system. Our approach is able to detect the shellcode that could be aware of the virtualization environment and reduces the probability of exposing detection environment. Our experimental evaluations show that our system can effectively detect a large set of shellcode instances with good performance.

Speech Recognition Algorithm in Complex Noisy Environments Based on Multi-Space Compensation

Yuanchang Zhong,Wenjin Xie,Donghai Xiao,Zunzhao Wang 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.9

Comprehensive potential evaluation of the bio-oil production and nutrient recycling from seven algae through hydrothermal liquefaction

Wenhan Song,Shuzhong Wang,Donghai Xu,Yang Guo,Chuang Yang,Jiandong Zhang,Yanhui Li 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.10

Hydrothermal liquefaction (HTL) of seven algae was conducted at both 280 and 350 oC with a reaction time of 30min and a mass ratio of 1/4 of algae to water to evaluate the utilization potential of bio-oil production and nutrient recycling in the aqueous by-product and solid residue particles. Chlorella and Nannochloropsis sp. exhibited the highest bio-oil yields at 280 oC (36.5% from Nannochloropsis sp.) and 350 oC (38.1% from Chlorella). Additionally, temperature had little effect on the energy recovery from Chlorella, Nannochloropsis sp., Spirulina, Cyanophyta and Euglena. The carbohydrates and lipids in the algae were primarily related to monoaromatic and single-ring heterocyclic compound generation in bio-oil. In addition, carbohydrates and proteins significantly affected oxygenated compound production. The sizable total carbon, ammonia nitrogen, total nitrogen and phosphate contents in the aqueous byproducts showed great potential as nutrient sources for algal cultivation and the production of value-added chemicals through recycling. Higher temperatures increased the percentage of ammonia nitrogen in the total nitrogen and reduced the phosphate concentration in the aqueous by-product. According to potential evaluation factors, Chlorella, Nannochloropsis sp., Spirulina, Cyanophyta and Euglena totally showed higher potential in terms of bio-oil production and aqueous nutrient recycling than Dunaliella salina and Enteromorpha prolifera, in which Nannochloropsis sp. exhibited the greatest utilization potential at investigated conditions.

Degradation of ultrahigh concentration pollutant by Fe/Cu bimetallic system at high operating temperature

Bo Lai,Qingqing Ji,Yue Yuan,Donghai Yuan,Yuexi Zhou,Juling Wang 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.1

To investigate the degradation of high concentration pollutant by Fe/Cu bimetallic system at a high operating temperature, 10,000mg/L acid orange 7 (AO7) aqueous solution was treated by Fe/Cu bimetallic system at 80 oC. First, the effect of the operating temperature (30-80 oC) on the reactivity of Fe/Cu bimetallic particles was investigated thoroughly. Then, the studies on the effect of theoretical Cu mass loading, Fe/Cu dosage, stirring speed and initial pH on the reactivity of Fe/Cu bimetallic particles at a high temperature (i.e., 80 oC) were carried out, respectively. The degradation and transformation process of AO7 was studied by using COD, TOC and UV-Vis spectra. The results indicate that high concentration pollutant could be removed effectively by Fe/Cu bimetallic system at a high operating temperature. And the removal efficiencies of AO7 by Fe/Cu bimetallic system were in accordance with the pseudofirst- order model. Finally, it was observed that the high temperature could accelerate mass transport rate and overcome the high activation energy barrier to significantly improve the reactivity of Fe/Cu bimetallic particles. Therefore, the higher removal efficiency could be obtained by Fe/Cu system at a high operating temperature. Thus, the high operating temperature played a leading role in the degradation of high concentration pollutant.