When and Where Global meets Local: A multilevel analysis of determinants of social trust in the Emirate of Abu Dhabi

Yang Guang,Badri Masood,Al Bahar Muna,Al Rashdi Asma 한국사회복지학회 2021 Asian Social Work and Policy Review Vol.15 No.1

Abu Dhabi's transformation to a modern society in recent decades provides an ideal context to explore the interplay of tradition, transition, and modernization at various levels, which shapes the trajectory of the development of social trust. This study offers multilevel analyses of the effects of social, psychological, and ethnical factors on social trust by using data from Abu Dhabi General Social Survey conducted in 2018. The results sustain the validity of both social capital and social network theories in explaining social trust. Contrary to the findings in other Middle East countries, in Abu Dhabi, the full-time employed and people who are more satisfied with their household income tend to show a higher level of trust. A negative but insignificant relationship is found between community ethnic fragmentation and social trust.

The supply chain model of new nuclear power plant programme

YANG Guang,HUANG WenJie,LEI Linli 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

Considering the life cycle of nuclear power plant(NPP) and high qualification required equipment, the identification of the scope on NPP supply chain, the assessment of some of the most valuable elements of supply chain and the clarification of the "pinch points" are of vital importance for ensuring the scheduled construction and sound operation of new nuclear programmes. Based on the analysis of the structure of new nuclear power build programme"s supply chain and the generalization of its elements, a supply chain model is developed. Finally, with a brief view of "pinch points" in China"s NPP industry, some counter measures for security and stabilization of the supply chains are proposed.

Sodium aescinate alleviates bone cancer pain in rats by suppressing microglial activation via p38 MAPK/c-Fos signaling

Yang Guang,Li Jiajing,Xu Qian,Xie Huilan,Wang Lijun,Zhang Minhao 대한독성 유전단백체 학회 2022 Molecular & cellular toxicology Vol.18 No.4

Background Bone cancer pain (BCP) severely compromises the life quality of patients with advanced cancer or bone metastases . Objective This study investigates the analgesic effect of sodium aescinate (SA) on BCP, and the underlying mechanisms within the spinal cord (SC) and dorsal root ganglion (DRG). Walker 256 cells were intratibially inoculated into rats to establish a BCP model. 10, 20, and 40 g/L of SA was intrathecally injected, respectively, and then, hyperalgesia and allodynia were evaluated by measuring the paw withdrawal threshold (PWT) and paw withdrawal latency (PWL). The effect of SA on neuroinflammation was observed by detecting the production of the pro-inflammatory cytokines based on RT-qPCR and ELISA. The NF-κB and p38 MAPK/c-Fos signaling was detected by WB analysis. Furthermore, RT-qPCR and WB analyses of Iba-1and CD206 were performed to assess microglial activation. Result The development of hyperalgesia and allodynia, and an increase of pro-inflammatory cytokines production, as well as microglial activation, were observed in the BCP rats. SA (40 g/L) not only relieved the pain-related behaviors induced by BCP but also suppressed the release of pro-inflammatory cytokines and the activation of microglia in the SC and DRG. SA could also inhibit p38 MAPK/c-Fos signaling in both the SC and DRG, which might contribute to the suppression of microglial activation. Conclusion Our findings suggest that SA plays a promising analgesic role in the BCP rats by suppressing infl ammation and microglial activation, and these effects may be associated with the suppression of p38 MAPK/c-Fos signaling.

Short-term Price Forecasting Method in Electricity Spot Markets Based on Attention-LSTM-mTCN

Yang Guang,Du Songhuai,Duan Qingling,Su Juan 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.2

Accurate and rapid price forecasting plays a crucial role in the electricity spot market. Owing to the variability of market participants’ activities, prices are usually too volatile to forecast accurately. In this study, a short-term price forecasting model for locational marginal price (LMP) based on a multiple temporal convolutional network (mTCN) and attention-long short-term memory (ATT-LSTM) is proposed. An attention-LSTM method is adopted to reconstruct the electrical features for the future. The mTCN is used to extract the hidden information and long-term temporal relationships in the input features included in electrical features. The eff ectiveness of the proposed model is demonstrated using datasets from the New England electricity market (ISO-NE) in the U.S. The proposed model provides accurate load forecasting results in experiments and comparisons with existing models

An effective route for the fabrication of multi-walled carbon nanotubes-reinforced ROMP-based nanocomposites by solution casting technique

Yang, Guang,Yan, Jing,Jeong, Young Gyu,Lee, Jong Keun Elsevier Science Ltd 2017 Composites Applied science and manufacturing Vol. No.

<P><B>Abstract</B></P> <P>This work reports the solvent-soluble multi-walled carbon nanotubes (MWCNTs), which can be used for the fabrication of ring-opening metathesis polymerization (ROMP)-based nanocomposites by solution casting technique. As the first and most important step of the solution casting technique, the excellent dispersibility of the MWCNTs in different solvents is achieved by the functionalization of the nanotube surface with norbornene oligomers. The norbornene-functionalized MWCNTs (nMWCNTs) have outstanding dispersion stability in water, tetrahydrofuran (THF), acetone, and ethanol, especially the maximum nanotube concentration of 3.9mg/mL in THF. The incorporation of nMWCNTs into poly(5-ethylidene-2-norbornene) (poly(ENB)) by solution casting technique results in significant improvements in the mechanical properties over the neat poly(ENB) and the pristine MWCNT-reinforced poly(ENB) nanocomposites. The route developed here not only avoids the dramatic increase of the viscosity occurring in the bulk polymerization but also provides the feasibility of high loadings of MWCNT reinforcements, consequently broadening the potential applications of ROMP-based nanocomposites.</P>

Curing Kinetics and Mechanical Properties of <i>endo</i>-Dicyclopentadiene Synthesized Using Different Grubbs’ Catalysts

Yang, Guang,Lee, Jong Keun American Chemical Society 2014 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.53 No.8

<P>Isothermal curing of <I>endo</I>-dicyclopentadiene (<I>endo</I>-DCPD) using the first and second generation Grubbs’ catalysts as the polymerization initiators was studied by means of differential scanning calorimetry (DSC) according to model-free isoconversional and model-fitting approaches. It revealed that the two Grubbs’ catalysts exhibited apparent differences in ring-opening metathesis polymerization (ROMP) of <I>endo</I>-DCPD. The second generation catalyst was more efficient in catalytic activity for overall ROMP of <I>endo</I>-DCPD than the first generation catalyst, as evident from the reaction rate and fractional conversion (α). The model-free isoconversional method showed similar dependence of the activation energy (<I>E</I><SUB>α</SUB>) on α for the two catalyst systems; however, the second generation catalyst system involved a higher <I>E</I><SUB>α</SUB>, up to α ≈ 0.8, above which the <I>E</I><SUB>α</SUB> value suddenly drops with increase of conversion. The model-fitting method of the ROMP was satisfactorily described by the decelerating reaction and the autocatalytic reaction mechanisms for the first and the second generation catalyst systems, respectively. The effect of diffusion-control was incorporated into the model-fitting method to describe the ROMP reaction throughout the entire conversion. For fully cured samples (poly-DCPD), the first generation catalyst system has higher cross-linking density and lower tensile toughness relative to the second generation. Dynamic mechanical behaviors were also different for poly-DCPD formed using the two catalysts.</P>

Nuclear Power Plant Security and Counter-Terrorist Strategy

YANG Guang,HUANG WenJie,LEI Linli 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

Nuclear power plants have long been recognized as potential targets of terrorist attacks Given the potentially catastrophic consequences of deliberate act on nuclear power plant and energy security issue followed, nuclear power plant security is elevated to a world-wide security concern. This paper focuses attention on security and vulnerability intrinsic of nuclear power plant. Firstly, the present paper summarizes the attack mode and types of terrorist, and it analyzes the defence in depth, design basis threat, target set, vulnerability from air attack, used fuel storage and risk of nuclear transports. In the end, the counter terrorist proposals are also presented and some of them are proved valid in practice in western nations, However, with the attack means constantly upgrading, more insufficiency of design being revealed, more sophisticated defensive system should be developed.

Investigating the performance of polymer cement resistance in football stadium construction

Yangguang Zhang Techno-Press 2023 Advances in concrete construction Vol.15 No.3

New techniques, technologies, and materials should be used to design and build sports stadiums. Since this century, much progress has been made in covering the roofs of sports stadiums, and the possibility of accurate computer calculation has been provided for stadiums, so by choosing a new structure, we can double the beauty and resistance of these stadiums. A stadium has an excellent and valuable design when its structure, shell, building, materials, and joinery follow a high architectural idea at all levels and scales. This article examines the mechanical performance of polymer cement strength in the construction of football stadiums, along with their structural knowledge in the form of the best examples in the world. Portland cement is one of the most used materials for constructing football stadiums. However, its production requires spending a lot of money, wasting energy, and damaging the environment. Considering the disadvantages in the production and consumption of concrete in different environments, it is necessary to find alternative materials. It should be used with cheaper, simpler technology, abundant primary resources, energy saving, less environmental damage, and better chemical and physical properties in concrete. High-strength concrete technology is considered a new development in the construction industry of concrete structures. In hardened concrete, strength and durability are two main factors, and as the compressive strength of concrete increases, concrete becomes more brittle. As a result, its tensile strength does not increase in proportion to the increase in compressive strength and has less strain tolerance. For this reason, the need to use is evident from the fibers in high-strength concrete. Fibers are used in concrete to increase tensile strength, prevent crack propagation, and significantly increase softness. The increase with the change of these resistances depends on the strength of concrete without fibers, the shape of fibers, and the percentage of fibers. This cement is obtained from the wastes of chemical and petrochemical industries and the wastes from coal combustion, which have the properties mentioned as substitutes for Portland cement.

“营改增”:中国增值税制最新动向

徐?光(Xu Yangguang) 한국세법학회 2012 조세법연구 Vol.18 No.3

There are two key points in the future development of China’s Value Added Tax(VAT) system. One point on contents, which is embodied in the reformation of "Business to Added"(replacing Business Tax by Value Added Tax), is to accommodate the relationship between taxes like the VAT and the Business Tax. The other point in form is to promote to enact the Law of VAT of PRC, which has become the significant work of China’s Top Legislature. "Business to Added" is the latest trend in China’s VAT. The reformationadopts the mode of choosing part of industries by stages to experiment, and it aims at achieving the reform target of replacing Business Tax by VAT around the country. However, key issues, such as tax burden changes in industry, the coordination of interests between central and local fiscal, and the improvement of tax collection and management system, should be seriously considered.

Test Study on Axial Compression Behavior of GCFST Columns Under Unidirectional Repeated Load

Cun Hui,Yongbo Zhang,Yangguang Wang,Ran Hai 한국강구조학회 2023 International Journal of Steel Structures Vol.23 No.4

Geopolymer concrete is one of the directions of green development in the construction industry, and casting geopolymer concrete inside steel tubes can effectively play the respective advantages of both. In order to study the axial compression performance and failure mechanism of geopolymer concrete-filled steel tubular (GCFST) columns, two hollow steel tubular columns were designed as the control group and eight geopolymer concrete-filled steel tubular columns were tested in axial compression with concrete strength grade, length-to-diameter ratio, and steel tube wall thickness as parameters. The load–displacement curve, skeleton curve, and stiffness degradation curve of each specimen were obtained by observing the force process and failure mode of each specimen, analyzing the characteristic load, and characteristic displacement, stiffness degradation, ductility, and energy dissipation capacity, and deriving the method of calculating the axial compression load-bearing capacity of GCFST columns, and comparing with several codes commonly used in the world. The results show that the length-diameter ratio has a significant effect on the failure mode of GCFST columns. The peak load and initial stiffness of each group of specimens are different, but their load–displacement curves, skeleton curves, and stiffness degradation trend are the same. The increase of geopolymer concrete strength and steel tube wall thickness can improve the ultimate load-bearing capacity, average compression capacity, and energy dissipation capacity of GCFST columns. The axial compression load-bearing capacity calculation formula proposed in this paper is in good agreement with the test results, and the calculated values of the formula are compared with the calculation results of the international codes to verify the accuracy and applicability of the axial compression load calculation formula proposed in this paper, and the results of the study can provide reference for the theoretical research and engineering application of geopolymer concrete-filled steel tube composite structure.