張戒論杜

張駿?(Zhang Jun?hui) 동아인문학회 2010 동아인문학 Vol.18 No.-

Zhang Jie’s Comment on Poetry in Suihantang in South Song Dynasty is an important work in the Chinese aesthetics history and Chinese poetry comment history. Understanding and discussion Du Fu’s poetry is not only an important element of this work, but also an important part of aesthetics; especially the volume 2 was specialized in commenting on Du Fu’s poem. This suggested that Zhang Jie took Du Fu as a model and respected and followed him, and this is the implementation of Zhang Jie’s theory in the critical practice.

Effects of Quenching Methods and Aging Processes on the Crushing Properties and Microstructure of Al–Zn–Mg Alloy Thin-Walled Square Extrusions

Hui Guo,Jin Zhang,Cheng Wang,Yun‑lai Deng 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.8

In this study, the effects of different (online quenching and offline quenching) quenching methods and aging processes (T6and T73) on the crashworthiness and microstructural evolution of three Al–Zn–Mg alloys (G1–G3) were studied by conductingtensile test and axial compression tests at room temperature, combined with optical metallography, electron back scattereddiffraction, and transmission electron microscopy microstructural observations. The obtained results revealed that thecrushing properties of three different Al–Zn–Mg alloys subjected to different quenching methods and aging processes weresignificantly different. Their crushing energy absorption of are ranked as follows: G1 > G3 > G2. The highest total energyabsorption gap (between T6 and T73) is the G1 alloy, and the lowest one is the G3 alloy. The largest total energy absorptiongap between the two quenching methods is the G3 alloy, and the smallest one is the G1 alloy. The G2 alloy with the largesttotal amount of Zn + Mg has the highest number density of matrix precipitates, the largest precipitate gap (between T6 andT73) and the smallest precipitate gap between the two quenching methods. The G3 alloy with the largest Zn/Mg ratio hasthe smallest number density of matrix precipitates, the minimum precipitation gap (between T6 and T73) and the maximumprecipitation gap between the two quenching methods. The G1 alloy with the lowest Zn/Mg ratio has the smallest size ofgrain boundary precipitates and PFZ width, while their largest values are obtained for the G3 alloy with the maximum Zn/Mg ratio. As a crushing resistant structural material, the crushing properties is improved without reducing the strength. Theratio of Zn/Mg should be controlled within the range of 4.57–6.15, while the total amount of Zn + Mg should be controlledwithin the range of 6.18–7.01.

中國 私立大學 營利에 關한 硏究

장덕강,주회민 원광대학교 대학원 2007 論文集 Vol.39 No.-

With the popularization of higher education in China, the private university, as a fresh troop has brought up a large number of talents for our society, and thus attracted more and more attentions from the government and various circles of the society. Private universities have made great contributions to the diversification of the managements of higher education. With the development of economy and the advent of the society, higher education, as a standard public product, has been highly valued and supported by the nation. In particular, private university education is paving a good way for the solution to the lack of funds in Chinese higher education. The chance for private university to make profits can help to increase the possibilities of active investments ineducation from companies, enterprises and individuals, to enlarge the scale of private education, and to achieve fairness and equality of education and finally to promote the prosperity of economy and stability of the society. The author in this article aims to demonstrate that in order to guarantee their education quality, private universities should improve their financial system, consult the management system of the businesses, adopt modernized teaching techniques and perfect teaching capacities of the professors, and thus it can exert a great influence on China.

A New ent-Kaurane type Diterpenoid Glycoside from Inula japonica Thunb

Jiang Jiang Qin,Jia Xian Zhu,Wei Dong Zhang1,2,Yan Zhu,Jian Jun Fu,Xiao Hua Liu,Hui Zi Jin 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.10

A new ent-kaurane type diterpenoid glycoside, 17-O-β-D-glucopyranosyl-16α-ent-kauran-19-oic acid (1), together with 17-hydroxy-16α-ent-kauran-19-oic acid (2), 16α,17-dihydroxyl-ent-kauran-19-oic acid (3), and 16α-hydroxy-17-acetoxy-ent- kauran-19-oic acid (4) were isolated from the aerial parts of Inula japonica Thunb. The structure of 1 was determined mainly by use of 1D and 2D NMR spectroscopic techniques including HSQC, 1H-1H COSY, HMBC, and NOESY. In addition, 4 exhibited significant inhibitory activity on NO production in LPS-stimulated RAW264.7 cells with IC50 value of 14.3 μg/mL.

Predictive Current Control of a PMSM Three-Level Dual-Vector Model Based on Self-Anti-Disturbance Techniques

Zhang Xiao,Tao Ran,Xu Xiaoming,Wang Tingjie,Zhang Hui 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.6

Finite control set-model predictive control (FCS-MPC) has become a hotspot for power electronics applications and research in recent years due to its conceptual simplicity, ease of handling system constraints and excellent multivariable control capability. However, the traditional FCS-MPC vector selection direction is more fi xed and the steady-state performance of the system is poor, while the speed outer loop uses PI control and the speed regulation eff ect is easily infl uenced by the motor parameters and cannot solve the problem of fast and overshoot free at the same time. To address these problems, a threelevel two-vector model predictive current control method for permanent magnet synchronous motors is proposed based on a self-anti-disturbance technique. For the speed outer loop, a fi rst-order linear active disturbance rejection control is used instead of the traditional PI control, which solves the problem of overshooting and speed incompatibility and improves the robustness of the system; for the current inner loop, the idea of dual-vector model prediction is introduced to expand the selection range of the voltage vector, making the selection of the voltage vector more accurate, while a vector partitioning strategy is used to reduce the computational burden. The control system is modelled and simulated using MATLAB/Simulink. Simulation and test results show that the method has good parameter robustness, fast dynamic response and satisfactory steady-state performance.

THE IMPACTS OF THE FIRST DAM IN THE YANGTZE MAINSTEM ON THE STURGEONS AND PADDLEFISH IN THE YANGTZE RIVER

Hui Zhang,Qiwei Wei,Hao Du,Jinming Wu,Chengyou Wang 한국수산과학회 양식분과 2015 한국수산과학회 양식분과 학술대회 Vol.2015 No.5

基于引力模型的中国与 ‘一带一路’国家贸易关系研究

Zhang Hui,이혁구 중국학연구회 2022 중국학연구 Vol.- No.101

This paper analyzed the trade intensity between China and neighboring countries on the Belt and Road Initiative, and empirically analyzed the factors affecting trade relations between regions through a gravity model for 61 countries during 2005-2019. As a result of the trade intensity analysis, it was found that trade with China was mainly concentrated in Southeast Asia, Central Asia, and West Asia. According to the empirical analysis results, the main factors affecting trade between China and neighboring countries on the Belt and Road are the level of economic development, per capita income, geographical distance and level of government governance. Among them, the level of economic development, the level of per capita income and the level of government governance were found to promote trade between China and neighboring countries, and the geographical distance was found to hinder trade. Whether or not borders were found was not statistically significant, and whether WTO membership and free trade agreements were concluded were found to promote trade. Therefore, it is necessary for China to sign free trade agreements with neighboring countries and at the same time improve the level of trade convenience through economic integration with neighboring countries. 본 논문은 중국과 ‘일대일로’ 주변국 간 무역결합도를 분석하였으며, 2005-2019 기간 61개국을 대상으로 중력모형을 통해 지역 간 무역관계에 미치는 영향요인에 대해 실증 분석하였다. 무역결합도 분석 결과, 중국과의 무역은 주로 동남아, 중앙아시아, 서아시아에 집중된 것으로 나타났다. 실증 분석결과에 따르면 중국과 일대일로 주변국 간의 무역에 영향을 미치는 주요 요인은 경제 발전 수준, 1인당 소득수준, 지리적 거리 및 정부 거버넌스 수준으로 나타났다. 그 중 경제 발전 수준, 1인당 소득수준 및 정부 거버넌스 수준은 중국과 주변국 간의 무역을 촉진하는 것으로 나타났으며, 지리적 거리는 무역에 저해되는 것으로 나타났다. 국경을 접하는지 여부는 통계적으로 유의하지 않은 것으로 나타났으며, WTO 가입 여부와 자유무역협정 체결 여부는 무역을 촉진하는 것으로 나타났다. 따라서 중국은 주변 국가들과의 자유무역협정 체결을 진행함과 동시에 주변국과의 경제일체화를 통한 무역편리화 수준을 제고할 필요가 있다.

Effects of Branched-chain Amino Acids on In vitro Ruminal Fermentation of Wheat Straw

Zhang, Hui Ling,Chen, Yong,Xu, Xiao Li,Yang, Yu Xia Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.4

This study investigates the effects of three branched-chain amino acids (BCAA; valine, leucine, and isoleucine) on the in vitro ruminal fermentation of wheat straw using batch cultures of mixed ruminal microorganisms. BCAA were added to the buffered ruminal fluid at a concentration of 0, 2, 4, 7, or 10 mmol/L. After 72 h of anaerobic incubation, pH, volatile fatty acids (VFA), and ammonia nitrogen ($NH_3$-N) in the ruminal fluid were determined. Dry matter (DM) and neutral detergent fiber (NDF) degradability were calculated after determining the DM and NDF in the original material and in the residue after incubation. The addition of valine, leucine, or isoleucine increased the total VFA yields ($p{\leq}0.001$). However, the total VFA yields did not increase with the increase of BCAA supplement level. Total branched-chain VFA yields linearly increased as the supplemental amount of BCAA increased (p<0.001). The molar proportions of acetate and propionate decreased, whereas that of butyrate increased with the addition of valine and isoleucine (p<0.05). Moreover, the proportions of propionate and butyrate decreased (p<0.01) with the addition of leucine. Meanwhile, the molar proportions of isobutyrate were increased and linearly decreased (p<0.001) by valine and leucine, respectively. The addition of leucine or isoleucine resulted in a linear (p<0.001) increase in the molar proportions of isovalerate. The degradability of NDF achieved the maximum when valine or isoleucine was added at 2 mmol/L. The results suggest that low concentrations of BCAA (2 mmol/L) allow more efficient regulation of ruminal fermentation in vitro, as indicated by higher VFA yield and NDF degradability. Therefore, the optimum initial dose of BCAA for in vitro ruminal fermentation is 2 mmol/L.

Microsatellite Markers Linked to Quantitative Trait Loci Affecting Fatness in Divergently Selected Chicken Lines for Abdominal Fat

Zhang, Hui,Wang, Shouzhi,Li, Hui,Yu, Xijiang,Li, Ning,Zhang, Qin,Liu, Xiaofeng,Wang, Qigui,Hu, Xiaoxiang,Wang, Yuxiang,Tang, Zhiquan Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.10

Abdominal fat characters are complex and economically important in the poultry industry. Their selection may benefit from the implementation of marker-assisted selection (MAS). The objective of this study was to identify the markers linked to QTL responsible for fatness traits. The Northeast Agricultural University broiler lines divergently selected for abdominal fat content (NEAUHLF) were used in the study. A total of 596 individuals from the divergent tails from the 6th to the 10th generations were genotyped at 23 microsatellite markers on chromosome 1. The differences of allele frequencies of all marker alleles between the divergent tails across the five generations were recorded. The allele frequencies of five markers, including LEI0209, LEI0146, MCW0036, ADL328 and MCW0115, had significant differences between the two tails in all five generations. The resulting p-values using Fisher's exact test on eleven markers, containing MCW248, MCW0010, MCW0106, LEI0252, LEI0068, MCW0018, MCW0061, LEI0088, MCW200, MCW283 and ROS0025, had a decreasing tendency from the 6th to the 10th generation. Statistical analysis showed that polymorphisms of the eight markers, including LEI0209, LEI0146, ROS0025, MCW0115, MCW0010, MCW0036, MCW283, ADL328, were significantly (p<0.0011) or suggestively (p<0.05) associated with abdominal fat content (AFW and AFP) across generations. It is concluded that the eight markers could be associated with the QTL affecting the deposition of abdominal fat in broiler chickens.

Discovering Station Patterns of Urban Transit Network with Multisource Data: Empirical Evidence in Jinan, China

Hui Zhang,Xu Li,Lele Zhang,Wei Wang,Jianmin Jia,Baiying Shi 대한토목학회 2021 KSCE Journal of Civil Engineering Vol.25 No.2

The various performances of buses at stations bring lots of difficulties for operators to manage them to improve the service quality. This paper proposes a data-driven framework to analyze the patterns of stations with network structure data, points of interest (POI) data and vehicle global positioning system (GPS) trajectory data. First, we build six indicators based on these data to measure the performance from station perspective. The results show that the number of POI around stations within 1 kilometer follows an exponential distribution. Moreover, the average headway and headway deviation of stations follow lognormal distributions. Second, we use agglomerative hierarchical clustering method to divided bus stations into different groups. Results indicate that the bus stations of Jinan could be divided into four groups with obvious characteristics. The findings could help operators to make exclusive strategies to manage bus systems.