A Multi-factor Performance Evaluation Model of Tourism Resource of Tourism Scenic Area Based on Grey System Analysis

Shi Tingting 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.1

Tourism resource is fundamental to the development, promotion and marketing of tourism scenic areas. It is also a key concern of research on the development of the tourism industry. In this paper, factors that influence the analysis of tourism resource are discussed and analyzed. A multi-factor performance evaluation model of tourism resource of tourism scenic area is proposed based on grey system analysis. Firstly, tourism resources of tourism scenic area are categorized into social factors, economic factors, environmental factors, resource factors, historic factors, scientific and technological factors, regional factors and management and service factors. Secondly, evaluation indicators of different categories are standardized to have unified scale. Thirdly, on the basis of grey system analysis, grey clustering coefficients of tourism resource of tourism scenic area are computed and the performance of tourism resources are evaluated according to coefficients. Last but not least, the evaluation model of tourism resource of tourism scenic area is verified through a case study.

Nitrogen self‑doped porous carbon nanosheets derived from azo dye flocs for efficient supercapacitor electrodes

Tingting Wei,Liang Wu,Feng Yu,Yin Lv,Long Chen,Yulin Shi,Bin Dai 한국탄소학회 2019 Carbon Letters Vol.29 No.5

The present work introduces a new method for the recycling of waste flocculation sludge to prepare electrode materials for supercapacitor. Hazardous azo dye was removal from textile dying wastewater by a new chitosan-based flocculant, and the generated dye sludge flocs was used as a nitrogen-containing precursor for the fabrication of N-doped carbon materials. The influence of azo dye on specific surface areas, nitrogen content, pore evolution of the resulting products and their electrochemical performance were investigated in detail. The results demonstrated a dual role of azo dye worked as both a nitrogen resource and pore-forming agent. The resulting N-doped carbon nanosheets derived from azo dye flocs demonstrated high electrochemical capacitance and good stability for supercapacitor electrode, which is attributed to the unique nitrogen doping, higher specific surface area and efficient charge transfer ability.

The relationship between polymorphism of insulin-like growth factor I gene and susceptibility to type 2 diabetes in Uygur population, Xinjiang, China

Wang Tingting,Maimaitituersun Gulixiati,Shi Haonan,Chen Cheng,Ma Qi,Su Yinxia,Yao Hua,Zhu Jia 한국유전학회 2022 Genes & Genomics Vol.44 No.4

Background: Type 2 diabetes (T2DM) susceptibility varies among different populations and is affected by gene single nucleotide polymorphism (SNP). Insulin-like growth factor (IGF)-1 gene, which has many SNP loci, is involved in T2DM pathogenesis. However, the relationship of IGF-1 gene polymorphism with T2DM in Uyghur population is less studied. Objective: To investigate the relationship between T2DM susceptibility and polymorphism of IGF-1 gene in Uyghur population of Xinjiang, China. Methods: This study enrolled 220 cases (122 males (55.46%) and 98 females (44.54%); mean age of 53.40 ± 10.94 years) of T2DM patients (T2DM group) and 229 (124 males (54.15%) and 105 females (45.85%); mean age of 51.64 ± 10.48 years) healthy controls (control group). Biochemical indexes were determined. IGF-1 gene polymorphism was analyzed by SNP genotyping. Results: The levels of TG, HDL, LDL, BUN, and Cr were statistically significant between the T2DM group and the control group. In terms of IGF-1 polymorphism, T2DM group had higher frequency of AA genotype (OR = 2.40, 95% CI = 1.19-4.84) and allele A (OR = 1.55, 95% CI = 1.17-2.06) of rs35767 loci, suggesting that rs35767 is related to the occurrence of T2DM. A total of 5 gene interaction models was obtained through analyzing the interaction of 5 SNP loci with the GMDR method. Among them, the two-factor model that included rs35767 locus and rs5742694 locus had statistical difference with a large cross-validation consistency (10/10). The combination of GG/CC, GA/AA, AA/AA, and AA/AC genotype was in high-risk group, whereas the combination of GG/AA, GG/AC, GA/AC and GA/CC genotype was in the low-risk group. The risk of T2DM in the high-risk group was 2.165 times than that of the low-risk group (OR = 2.165, 95% CI = 1.478-3.171). Conclusion: TG, HDL, LDL, BUN, and Cr are influencing factors of T2DM in Uyghur population. The rs35767 locus of IGF-1 gene may be associated with T2DM in Uyghur population. The high-risk group composing of rs35767 locus and rs5742694 locus has a higher risk of T2DM.

The effect of crash pulse on occupant injury in frontal coach collisions

Sun Tingting,Xiong Xin,Zheng Zhuan,Shi Xiaolong,Fan Jianwei 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.11

The purpose of this study is to reveal the effect of different acceleration curves on occupant injury risk in the frontal collision of coaches. Based on characteristics of frontal crash acceleration curves, the influence of characteristic parameters on occupant injury was studied using a two-factor variance analysis method. The finite element-rigid body coupling method was used to establish a coupled simulation for the dummy and the sled and evaluate differences in the effects on occupant injury between the acceleration curves of four different coaches and the acceleration envelope of the ECE R80 standard. Results indicate that the upper limit of the simplified curve has the greatest influence on occupant injury and it displays a positive correlation. The acceleration curve stipulated by ECE R80 is too idealized, which may lead to inadequacies in safety protection capability in vehicle and seat design.

Nitrogen self-doped porous carbon nanosheets derived from azo dye flocs for efficient supercapacitor electrodes

Wei Tingting,Wu Liang,Yu Feng,Lv Yin,Chen Long,Shi Yulin,Dai Bin 한국탄소학회 2019 Carbon Letters Vol.29 No.5

The present work introduces a new method for the recycling of waste flocculation sludge to prepare electrode materials for supercapacitor. Hazardous azo dye was removal from textile dying wastewater by a new chitosan-based flocculant, and the generated dye sludge flocs was used as a nitrogen-containing precursor for the fabrication of N-doped carbon materials. The influence of azo dye on specific surface areas, nitrogen content, pore evolution of the resulting products and their electrochemical performance were investigated in detail. The results demonstrated a dual role of azo dye worked as both a nitrogen resource and pore-forming agent. The resulting N-doped carbon nanosheets derived from azo dye flocs demonstrated high electrochemical capacitance and good stability for supercapacitor electrode, which is attributed to the unique nitrogen doping, higher specific surface area and efficient charge transfer ability.

UML diagram-driven test scenarios generation based on the temporal graph grammar

( Zhan Shi ),( Xiaoqin Zeng ),( Tingting Zhang ),( Lei Han ),( Ying Qian ) 한국인터넷정보학회 2021 KSII Transactions on Internet and Information Syst Vol.15 No.7

Model-based software architecture verification and test scenarios generation are becoming more and more important in the software industry. Based on the existing temporal graph grammar, this paper proposes a new formalization method of the context-sensitive graph grammar for aiming at UML activity diagrams, which is called the UML Activity Graph Grammar, or UAGG. In the UAGG, there are new definitions and parsing algorithms. The proposed mechanisms are able to not only check the structural correctness of the UML activity diagram but also automatically generate the test scenario according to user constraints. Finally, a case study is discussed to illustrate how the UAGG and its algorithms work.

Acetaldehyde induces tau phosphorylation via activation of p38 MAPK/JNK and ROS production

Li Tingting,Shi Huahua,Zhao Yan 대한독성 유전단백체 학회 2022 Molecular & cellular toxicology Vol.18 No.3

Background Heavy drinking has been associated with increased risk of dementia such as Alzheimer’s disease, but the mechanisms are not fully understood. Evidence suggests that acetaldehyde, the most toxic metabolite of ethanol, mediates the brain tissue damages and cognitive dysfunction induced by the overconsumption of alcohol. Abnormal hyperphosphorylated tau protein is the major component of neurofi brillary tangle that correlates with neurodegeneration. However, there are few reports regarding whether acetaldehyde affects the phosphorylation of tau protein in neuronal cells. Objective The aim of this study is to explore the effect of acetaldehyde on the phosphorylation of tau protein. Results It was found that acetaldehyde treatment increased the amount of phosphorylated tau in human neuroblastoma SH-SY5Y cells. Further studies revealed that acetaldehyde increased the production of reactive oxygen species (ROS) and induced the activation of p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK). Pretreatment with antioxidant N -acetylcysteine (NAC) or inhibitors of p38 MAPK and JNK ameliorated the phosphorylation of tau in acetaldehyde treated cells, suggesting that acetaldehyde might increase the phosphorylation of tau via inducing the production of ROS and activating p38 MAPK and JNK pathways. Conclusion The result indicated that acetaldehyde treatment increased tau phosphorylation in neuronal cells. Therefore, the accumulation of acetaldehyde resulted from alcohol abuse or defect of acetaldehyde detoxification may promote tau pathology in neurodegenerative diseases such as AD.

Capacitive deionization of saline water using sandwich-like nitrogen-doped graphene composites <i>via</i> a self-assembling strategy

Yan, Tingting,Liu, Juan,Lei, Hong,Shi, Liyi,An, Zhongxun,Park, Ho Seok,Zhang, Dengsong The Royal Society of Chemistry 2018 Environmental science Vol.5 No.11

<P>Capacitive deionization (CDI) is a promising water treatment technology that is proposed to solve water scarcity. In this study, sandwich-like nitrogen-doped graphene composites were designed and produced as high-performance CDI electrodes <I>via</I> a self-assembling strategy. Nitrogen-doped mesoporous carbon was directly created and assembled onto the graphene surface using dopamine hydrochloride as a carbon and nitrogen source and nano-silica as a hard template. This unique sandwich architecture provides a large accessible surface area and lower electronic resistivity, resulting from creating a “plane-to-porous plane” conducting network for increased adsorption sites and rapid electron transportation pathways. The specific surface area (918 m<SUP>2</SUP> g<SUP>−1</SUP>) and excellent wettability of sandwich-like nitrogen-doped graphene were further improved by incorporating nitrogen in surface texture and chemistry. The material was tested for the CDI application in NaCl aqueous solution. The sandwich-like nitrogen-doped graphene electrodes demonstrated a high salt adsorption capacity of up to 18.4 mg g<SUP>−1</SUP> in a 500 mg L<SUP>−1</SUP> NaCl aqueous solution with a larger charge efficiency and an ideal recycling performance. These enhanced capacitive deionization performances of the sandwich-like nitrogen-doped graphene electrodes are attributed to the unique “plane-to-porous plane” internetworked architecture. This study offers a promising solution to develop high-performance electrode materials for removal of ions from saline water.</P>

A Compare of Fuzzy Logic and Entropy Models : A Case Study of Assessment Analysis of Geohazard Susceptibility in Jianshi County of Qingjiang River Basin

Ningtao Wang,Tingting Shi,Ke Peng,Zhipeng Lian,Yiyong Li,Qing Wang,Wen Chen,Bolin Huang 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.4

Fuzzy logic model and entropy model are useful for the geohazard susceptibility zonation in Jianshi County of Qingjiang River Basin. In this paper, the same impact factors were chosen and the geohazard samples were considered in two cases with quantitative analysis method. The first case 162 geohazards chosen as samples and the other one all of 182 geohazards chose as samples. The authors completed the susceptibility zonation in the two different cases using the two models in order to analysis the effects of the two models. The results of the two models in different cases were almost the same in space, except small differences in some areas. The entropy model was more accurate for the analysis of relationship between impact factors and geohazards, but not stable for different geohazard samples. The fuzzy logic model was better for less geohazard samples. According to the analysis process, it was found that the fuzzy γ operation was the best which was defined in terms of the fuzzy algebraic product and the fuzzy algebraic sum. The results of fuzzy logic model were most useful when γ was 0.20. The fuzzy logic model and entropy model were useful for the geohazard susceptibility which was scientific and useful for the government to manage the geohazards and make the preliminary development plans.

Ganoderic acid A attenuates high‑fat‑diet‑induced liver injury in rats by regulating the lipid oxidation and liver inflammation

Fuli Liu,Kejian Shi,Jiaojiao Dong,Zhousheng Jin,Yiquan Wu,Yaoyao Cai,Tingting Lin,Qianqian Cai,Le Liu,Yujian Zhang 대한약학회 2020 Archives of Pharmacal Research Vol.43 No.7

Ganoderic Acid A (GA) has many pharmacologicaleffects such as anti-tumor, antibacterial, anti-inflammatory,and immunosuppressive effects. However, the protectiveeffect of GA on liver injury has not been reported. Thisstudy aimed to investigate the action of GA on insufficientmethionine and choline combined with high-fat diet (HFD)-induced non-alcoholic fatty liver disease (NAFLD) in rats. NAFLD model was established by insufficient methionineand choline combined with high fat feeding to rats. The levelsof Acetyl-CoA carboxylase, fatty acid synthase, sterolregulatory element binding protein, liver X receptors, AMPactivatedprotein kinase, peroxisome proliferator-activatedreceptor α, PPARg coactivator 1α and NF-κB pathway inthe liver were detected by western blot. The results of thisstudy demonstrated that the expression of GA can not onlysignificantly decrease the live weight and liver weight perbody weight of HFD mice, but also restore the alanine aminotransferase,aspartate aminotransferase, total bilirubinlevels, triglyceride and cholesterol in serum. In addition,the expression of GA increased the levels of high-densitylipoprotein cholesterol in serum, ameliorated pathologicalchanges and decreased NAS score of mice’s liver. In conclusion,the treatment with GA could improve NAFLD in ratsby regulating the levels of signaling events involved in freefatty acid production, lipid oxidation and liver inflammation.