Cultural Resources Development Potential Evaluation of Shandong Peninsula Blue Economic Zone

Tian, Hong 한중경제문화학회 2017 한중경제문화연구 Vol.8 No.-

The 13th “Five year plan” clearly puts forward the goal of making cultural industry become the pillar industry of national economy in the next five years, which means cultural industry becomes a new development momentum, and are attached much greater importance by the government. Cultural resources are the material basis for the cultural industry, to scientifically classify and evaluate the cultural resources is the key to transform cultural resource advantage into industrial advantage. Firstly, referring to the method of national tourist resources classification, the cultural resources in the Shandong peninsula blue economic zone can be divided into seven types, which are natural landscape culture resources, historical culture resources, folk customs culture resources, religious culture resources, festival events culture resources, literature and art, reality culture resources. Then, the development potential of cultural resources in the Shandong Peninsula Blue Economic Zone were evaluated using the multilevel grey method. The evaluation results showed that the development potential of the cultural resources in the Shandong Peninsula Blue Economic Zone is the highest and the development potential order of each type was W (natural)>W(historical)>W(folk)>W(literaryarts)>W(festivalevent)>W(Religion)>W(real), among which natural landscape culture resources and history culture resources has the greatest development potential, festival event culture resources and reality culture resources has a comparative advantage, literature and art resources has a advantaged talent and outstanding development characteristics, and festival events culture resources has great potential market demand and expected development benefits.

Development of biomarker for detecting silver nanoparticles exposure using a GAL4 enhancer trap screening in <i>Drosophila</i>

Tian, Hong,Eom, Hyun-Jeong,Moon, Sungjin,Lee, Jeongmi,Choi, Jinhee,Chung, Yun Doo Elsevier 2013 Environmental toxicology and pharmacology Vol.36 No.2

<P><B>Abstract</B></P> <P>Silver nanoparticles (AgNPs) have been widely used in commercial goods ranging from medical devices to home appliances. Their widespread application increase the risk related to their potential toxicity. Although several studies showed their acute hazardous effects on living animals, our understanding of chronic effects of AgNPs exposed by the environment we encounter in our everyday lives is still very limited. This is partly because of the lack of versatile animal model system for studying AgNPs effects on terrestrial animals including human. In this study, we used <I>Drosophila</I> model to study AgNPs toxicity in terrestrial animals, and found that long-term exposure of AgNPs, but not Ag ions, at low level (0.1 and 1μg/mL) significantly shortened the lifespan. By taking advantage of the power of <I>Drosophila</I> genetics, we also isolated a GAL4 enhancer trap line called <I>M95</I>, in which the expression of GAL4 is up-regulated in response to ingestion of AgNPs at concentrations as low as 0.1μg/mL. Interestingly <I>M95</I> flies showed significantly increased tolerance to both AgNPs treatment and dry starvation probably due to up-regulation of JNK signaling. These findings suggest not only that <I>M95</I> may be a very useful biomarker of AgNPs because of its high sensitivity and tolerance to AgNPs, but also that <I>Drosophila</I> may be a versatile terrestrial invertebrate model for studying the effects of AgNPs on human health.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Long-term exposure of AgNPs at low doses (0.1–1μg/mL) but not Ag ions affects lifespan of <I>Drosophila</I>. </LI> <LI> Isolation of a GAL4 enhancer trap line (<I>M95</I>) as a sensitive biomarker of AgNPs. </LI> <LI> <I>M95</I> flies are more sensitive to AgNPs and dry starvation compared to the control flies. </LI> <LI> AgNPs treatment up-regulates the JNK signaling in <I>Drosophila</I>. </LI> <LI> The basal level of p-JNK is elevated in <I>M95</I> compared to control. </LI> </UL> </P>

Sustainable Development of Cultural Resources in Shandong Province

Tian Hong,Shen Weiping 한중경제문화학회 2018 한중경제문화연구 Vol.11 No.-

Shandong Province, as a big province of cultural resources, has abundant cultural resources and the rapid development of cultural industries. At the same time, the contradiction between the protection and development of cultural resources is increasingly prominent, threatening the sustainable use of cultural resources. Based on this, the article systematically analyzes the classification, characteristics, and utilization status of cultural resources in Shandong Province from the perspective of sustainable development. According to the clustering characteristics of regional characteristic cultural resources in Shandong Province, it proposes the construction of five major cultural industrial clusters and the realization of culture. The concept of the development of sustainable use of resources provides a new way to promote the effective protection and rational development of cultural resources in Shandong Province and promote the transformation and upgrading of cultural industries.

Magnetic properties and phase relations of Cu-Ga diffused Sm(Fe<SUB>0.8</SUB>Co<SUB>0.2</SUB>)<SUB>10.8</SUB>Ti<SUB>0.6</SUB>V<SUB>0.6</SUB> bulks produced by melt-spinning method

Tianhong Zhou,Han-Kuk Jeon,Yong-Rae Cho,Chul-Jin Choi,Jihoon Park 한국자기학회 2022 한국자기학회 학술연구발표회 논문개요집 Vol.32 No.2

Magnetic properties and phase relations of Sm(Fe<SUB>0.8</SUB>Co<SUB>0.2</SUB>)<SUB>10.8</SUB>Ti<SUB>0.6</SUB>V<SUB>0.6</SUB> + x wt.% Cu-Ga produced by melt-spinning method

Tianhong Zhou,Hui-Dong Qian,Jung-Tae Lim,Jihoon Park,Yong-Rae Cho,Chul-Jin Choi 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.2

In our previous work, we studied the influence of Ti and V content in the Sm(Fe0.8Co0.2)12-xTixVx (x = 0.5 - 1.0) alloys. The optimal x for high purity ThMn12 phase was found to be 0.6, and the corresponding remanent magnetization, coercivity, and maximum energy product were 80.6 emu/g, 3379 Oe and 7.29 MGOe, respectively. However, an intergranular phase that could enhance the coercivity was not found in the Sm (Fe0.8Co0.2)10.8Ti0.6V0.6 sample, i.e., the grains of ThMn12-phase were in direct contact. Therefore, in this work, we have introduced Cu-Ga as the intergranular phase to improve the coercivity. First, Sm(Fe0.8Co0.2)10.8Ti0.6V0.6 and Cu-Ga alloys were separately fabricated. The produced alloys were then arc-melted together to produce Sm(Fe0.8Co0.2)10.8Ti0.6V0.6 + x wt.% Cu-Ga (x = 1, 2, 3) alloys. It is noted that an excess of Sm was added to crystallize Sm-Cu-Co-Ga in the alloys. The produced ingots include the ThMn12 and α-Fe phases in the main grains and Sm-Cu-Co-Ga in the grain boundaries. The contents of the α-Fe and Sm-Cu-Co-Ga were dramatically reduced by melt-spinning at the wheel speed of 37 m/s due to the high cooling speed. It was found that the main phase of the melt-spun ribbons is TbCu7 phase. The ribbons were manually ground and pressed under 12.5 GPa to produce high density green bodies. The green bodies were annealed at 800 ℃ for 15 minutes under vacuum conditions, which resulted in a nearly pure ThMn12 phase in the main grains and Sm-Cu-Co-Ga in the grain boundaries. The resulted coercivities of the samples were 3399, 4054, and 4317 Oe for x = 1, 2, and 3, respectively, which are higher than the sample without Cu-Ga. However, compared to the small increase in the coercivity, the remanent magnetization declined to 64, 66 and 60 emu/g, respectively. This degradation resulted in a negative impact on the maximum energy product, which were 4.43, 6.44 and 4.75 MGOe, respectively. Although the intergranular phase was successfully fabricated by introducing the Cu-Ga alloy in this work, it led to the deterioration of the remanent magnetizations and maximum energy products. Thus, it is necessary to further optimize the experimental procedures to improve the magnetic properties. 〈그림 본문참조〉

Novel Local Community Detection Algorithm Based on Contribution of Common Neighbor Nodes

Tianhong Wang,Xing Wu,Wangsen Lan 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.11

Most of the local community detection algorithms based on node similarity often simply count the number of common neighbors as the basis of selecting members of the community that cannot accurately measure the value of a common neighbor node in the information transmission of nodes. For this, we use the new concept of a common neighbor contribution; borrowed from the idea about the local modularity, put forward a new fast community detection algorithm. The algorithm accurately selects candidate nodes to join the community, according to the contribution of the common neighbor node, also without calculating local modularity for each common neighbor node, and greatly improved the accuracy and efficiency in merging Members. the experimental results of the computer-generated network and the real networks verified reliability and efficiency of the algorithm.

Effect of Ti and V content on the magnetic properties of Sm(FeCo)<SUB>12</SUB>-based magnets produced by melt-spinning method

Tianhong Zhou,Hui-Dong Qian,Jihoon Park,Yong-Rae Cho,Chul-Jin Choi 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.1

Due to high Fe content, tetragonal SmFe12-based magnets are expected to have a great performance in magnetization and energy density [1]. In order to stabilize their structure, additional elements, such as Ti, V, Nb, Mo, Ta, W, Al or Si, are necessarily substituted. Among these stabilizing elements, Ti is the most effective element that a small amount of Ti can stabilize the structure by replacing only a Fe atom at 8i site [2]. On the other hand, it is reported that V-doped SmFe₁₂-based magnets exhibited a larger value of coercivity than V-free magnets [3]. At the same time, the magnetization of the ThMn₁₂-type magnets can be enhanced by partially substituting Fe with Co at 8f site in tetragonal structure [4]. Therefore, in this work, we have studied the influence of Ti and V content in the Sm(Fe_0.8Co_0.2)_12-2xTi<sub>x</su)V_x (x = 0.5-1.0) alloys. Amorphous ribbons were obtained using melt spinning process, and high density green bodies were produced by pressing the melt-spun ribbons under 12.5 GPa. The green bodies were heat treated at the temperature ranging from 700 to 850℃. At the x from 0.6 to 1.0, we obtained high purity ThMn₁₂ phase. It was found that the coercivity varies with increasing x contents as can be seen in Fig. 1, while the magnetization decreases due to increasing non-magnetic elements. The optimal x was found to be 0.6, and the corresponding remanent magnetization and maximum energy product were 80.6 emu/g and 7.29 MGOe, respectively. We have also studied the most suitable annealing temperature and Curie temperature for alloys of each component.

DEVELOPMENT OF AN ENGINE CALIBRATION MODEL USING GAUSSIAN PROCESS REGRESSION

Tianhong Pan,Yang Cai,Shan Chen 한국자동차공학회 2021 International journal of automotive technology Vol.22 No.2

To enhance the calibration efficiency, reduce the fuel consumption and improve the emission performance of the engine, a calibration method using Gaussian Process Regression (GPR) is proposed in this work. First, the design of experiment (DoE) is constructed by using the Space-filling method, and the engine bench sampling test is implemented according to results of DoE. Then, the square exponential covariance function is selected through the comparison of four covariance functions, and the corresponding hyper-parameters are optimized by using Newton gradient algorithm. Finally, the GPR model of the engine is established and its calibration performance is validated by the experimental data. The comparison shows that the performance of the developed GPR model is superior to the Polynomial model and Neural Network model, whose coefficient of determination (R2) of Fuel Consumption (FC), NOx emission (NOx) and Soot emission (Soot) are up to 0.9980, 0.9326 and 0.9247. The case study demonstrates that the virtual calibration optimization based on GPR model improves the fuel consumption performance greatly, while taking NOx and Soot emission indicators into account.

Identification of an ARX-type Nonlinear Rational Model Based on the Renyi Error Entropy and the Epanechnikov Kernel

Shaoxue Jing,Tianhong Pan,Quanmin Zhu 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.10

In this paper, a novel stochastic gradient algorithm based on the minimum Renyi entropy is proposed to identify a nonlinear rational model contaminated by the impulse noise. Firstly, the minimum error entropy using the Epanechnikov kernel is taken to suppress the impulse noise. Secondly, the stochastic gradient of the Renyi entropy rather than the Shannon entropy is adopted to decrease the computational cost. Finally, an adaptive step size considering the energy of the errors is used to accelerate the algorithm. The proposed algorithm is validated by numerical examples and case study. Results show that the algorithm can give accurate estimates with a fast convergence rate for the nonlinear rational model with the impulse noise.

Life Cycle of Dermacentor everestianus Hirst, 1926 (Acari: Ixodidae) under Laboratory Conditions

Shang Jin,Tianhong Wang,Tuo Li,Ming Liu,Qingying Jia,Xiaolong Yang,Hui Wang,Zhijun Yu,Jingze Liu 대한기생충학열대의학회 2017 The Korean Journal of Parasitology Vol.55 No.2