The Relationship among Instructional Behavior of General Physical Education, Sport commitment, and Will of Exercise Adherence in University

( Ke Liu ) 한국체육학회 2015 국제스포츠과학 학술대회 Vol.2015 No.1

Purpose: General physical education courses in university enable students to increase health, morality, and sociality just as improve the quality of life, inspiring vitality to school and social lives. Especially, it is a great meaningful that general physical education courses make students cultivate attitudes to participate physical activities spontaneously with pleasure, and it has the ground of a life-long physical education. Method: To achieve this purpose, this study selected participants taking general physical education in university in Gyonggi-do as a population and then used 557copies as the finally materials by the non-probability sampling. With collected data, frequency analysis, exploratory factor analysis, reliability analysis, and structural equation modeling analysis were employed by SPSS WIN VERSION 15.0 and AMOS 7 program. Result: As a result, the following findings were deducted. Firstly, according to the result of hypothesis test that instructional behavior of general physical education has an effect on sport commitment (ß=.86), hypothesis 1, ``Instructional behavior of general physical education has an effect on sport commitment,`` was accepted. Secondly, according to the result of hypothesis test that sport commitment of general physical education have an influence on will of exercise adherence (ß=.77), hypothesis 2, ``Sport commitment of general physical education has effect on will of exercise adherence,`` was accepted. Lastly, based on the result of hypothesis 1 and 2, hypothesis 3, ``Instructional behavior of general physical education have an effect on will of exercise adherence indirectly via sport commitment,`` was .66. Conclusion: In conclusion, first, instructional behavior of general physical education has influence on sport commitment. Second, sport commitment of general physical education has impact on will of exercise adherence. Third, instructional behavior of general physical education has an indirect influence on will of exercise adherence via sport commitment.

The TOP-SCOPE Survey of <i>Planck</i> Galactic Cold Clumps: Survey Overview and Results of an Exemplar Source, PGCC G26.53+0.17

Liu, Tie,Kim, Kee-Tae,Juvela, Mika,Wang, Ke,Tatematsu, Ken’ichi,Francesco, James Di,Liu, Sheng-Yuan,Wu, Yuefang,Thompson, Mark,Fuller, Gary,Eden, David,Li, Di,Ristorcelli, I.,Kang, Sung-ju,Lin, Yuxin Published by the University of Chicago Press for t 2018 The Astrophysical journal Supplement series Vol.234 No.2

<P>The low dust temperatures (< 14 K) of Planck Galactic cold clumps (PGCCs) make them ideal targets to probe the initial conditions and very early phase of star formation. 'TOP-SCOPE' is a joint survey program targeting similar to 2000 PGCCs in J = 1-0 transitions of CO isotopologues and similar to 1000 PGCCs in 850 mu m continuum emission. The objective of the 'TOP-SCOPE' survey and the joint surveys (SMT 10 m, KVN 21 m, and NRO 45 m) is to statistically study the initial conditions occurring during star formation and the evolution of molecular clouds, across a wide range of environments. The observations, data analysis, and example science cases for these surveys are introduced with an exemplar source, PGCC G26.53+0.17 (G26), which is a filamentary infrared dark cloud (IRDC). The total mass, length, and mean line mass (M/L) of the G26 filament are similar to 6200 M-circle dot, similar to 12 pc, and similar to 500 M-circle dot pc(-1), respectively. Ten massive clumps, including eight starless ones, are found along the filament. The most massive clump as a whole may still be in global collapse, while its denser part seems to be undergoing expansion owing to outflow feedback. The fragmentation in the G26 filament from cloud scale to clump scale is in agreement with gravitational fragmentation of an isothermal, nonmagnetized, and turbulent supported cylinder. A bimodal behavior in dust emissivity spectral index (beta) distribution is found in G26, suggesting grain growth along the filament. The G26 filament may be formed owing to large-scale compression flows evidenced by the temperature and velocity gradients across its natal cloud.</P>

Improved Modulated Model Predictive Control of TLIMC-PMSM Based on Virtual Vector Prediction

Liu Ke,Cheng Qiming 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.3

In order to solve the problems of traditional modulated model predictive control (M2PC) in three-level indirect matrix converter-permanent magnet synchronous motor (TLIMC-PMSM) system, such as inaccurate sector selection and duty ratio calculation of M2PC. An improved modulated model predictive control based on virtual vector prediction (VVP-M2PC) is proposed and applied to TLIMC-PMSM system. Compared with the traditional M2PC, VVP-M2PC re-partitions the sectors of the three-level inverter stage and constructs a new virtual vector to reduce the current control error. In addition, the feasibility of this method is discussed from two aspects: computational complexity and theoretical error analysis. Finally, compared with MPC and traditional M2PC, the simulation and experiment results show that the algorithm can improve the speed and torque ripple of PMSM, and improve the quality and robustness of input and output waveforms of the system.

The comparison and optimization of zirconia, alumina, and zirconia-alumina supported PtSnIn trimetallic catalysts for propane dehydrogenation reaction

Liu-Liu Long,Ke Xia,Wan-Zhong Lang,Li-Ling Shen,Qiang Yang,Xi Yan,Ya-Jun Guo 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.51 No.-

The zirconia, alumina, and zirconia-alumina (xZr-Al) supported PtSnIn catalysts were prepared andcomparatively studied for propane dehydrogenation reaction. The structure–function relationships ofthe resultant catalysts are well elucidated upon several state-of-art physico-chemical characterizations. The results show that xZr-Al used as support for trimetallic PtSnIn catalysts exhibits the significantcatalytic performances. The PtSnIn/08Zr-Al catalyst has the highest Pt dispersion accompanied with thesmallest average Pt particles, and it presents the initial propane conversion and propylene selectivityabove 55.0% and 98.0% respectively. The initial propane conversions afterfive reaction–regenerationcycles are all above 55.0% and only decrease little ( 3%).

Continuous supply of recycled Pacific oceanic materials in the source of Cenozoic basalts in SE China: the Zhejiang case

Liu, Shao-Chen,Xia, Qun-Ke,Choi, Sung Hi,Deloule, Etienne,Li, Pei,Liu, Jia Springer-Verlag 2016 Contributions to mineralogy and petrology Vol.171 No.12

<P>Various enriched recycled oceanic components in the source of Cenozoic intra-plate alkaline basalts from eastern China were identified by previous studies. Due to the existence of a stagnant subducted Pacific slab in the mantle transition zone beneath eastern China, it is logical to connect the stagnant slab to the recycled oceanic materials. However, the recycled oceanic materials could also result from ancient subduction events (e.g., Paleo-Tethyan, Paleo-Asian or Izanagi plate subduction) because enriched geochemical signatures of a recycled slab can be preserved in the mantle for longer than 1 Gyr. Investigating the temporal variations of the recycled oceanic materials in the mantle source is a useful way to trace the origin of the basalts. In this article, we have conducted a detailed geochemical study, including major and trace elements and Sr-Nd-Pb isotopes, on two alkaline basalt groups from Zhejiang, SE China, which erupted 26-17 Ma and after 11 Ma, respectively. In particular, we recovered the H2O content of the initial magmas based on the H2O content of the clinopyroxene (cpx) phenocrysts and the partition coefficients of H2O between cpx and basaltic melts. The H2O contents of the Zhejiang basalts range from 1.3 to 2.6 (wt.%), which fall within the range of back-arc basin or island arc basalts. The older basalts are more alkaline and have lower Si and Al contents; higher trace element concentrations; higher La/Yb, Ce/Pb and Nb/La ratios; lower H2O/Ce and Ba/Th ratios; and stronger negative K, Pb, Hf and Ti anomalies than the younger ones. The co-relationships between Ba/La, H2O/Ce, Nb/La, Ce/Pb and Ba/Th in the two groups of the Zhejiang basalts indicate that a recycled dehydrated oceanic alkaline basalt component is needed in the source of the older rocks, along with a depleted mantle component. Meanwhile, an additional recycled dehydrated sediment component was required in the source of the younger rocks. The temporal change in the recycled oceanic materials in the mantle sources of Zhejiang Cenozoic basalts demonstrates that the recycled components can only originate in the stagnant Pacific slab that is the only plate subducted since 100 Ma in this area.</P>

Studies on the Soybean Cyst Nematode (Heterodera glycines) in China

Liu, Wei-Zhi,Liu, Ye,Duan, Yu-Xi,Hong, Quan-Chun,Wang, Ke-Ning Korean Society of Applied Entomology 1995 한국응용곤충학회지 Vol.34 No.2

Soybean has been cultivated in China for 5,000 years. The soybean cyst neamtode (SCN), Heterodra glycines, was recongnized in Northeastern China in 1899. Currently, it is known to occur in 12 provinces. The biology of SCN was investigated in several provinces. Six races of SCN were identified (race 1, 2, 3, 4, 5 and 7). About f10,000 soybean germplasm lines were evaluated for their resistance to race 1, 3, 4 and 5 of SCN. At least two black-seeded cultivars are resistant to all four races. Several tolerant soybean cultivars with yellow seed coat were released and are in production. Additional resistant cultivars are being developed. Nematicides were not applied in production Potential biocontrol agents and related aspects are being investigated.

Expression of Tumor Necrosis Factor-alpha-induced Protein 8 in Pancreas Tissues and its Correlation with Epithelial Growth Factor Receptor Levels

Liu, Ke,Qin, Cheng-Kun,Wang, Zhi-Yi,Liu, Su-Xia,Cui, Xian-Ping,Zhang, Dong-Yuan Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.3

Tumor necrosis factor (TNF)-alpha-induced protein 8 (TNFAIP8 or TIPE) is a recently identified protein considered to be associated with carcinogenesis. To investigate its expression pattern in pancreatic cancer patients and to analyse its correlation with clinicopathological significance and the expression levels of epithelial growth factor receptor (EGFR), immunohistochemistry was performed to detect the TNFAIP8 and EGFR proteins in pancreatic cancers, pancreatitis tissues, and healthy controls. The results showed stronger staining of TNFAIP8 protein in pancreatic cancer tissues compared with normal pancreas tissue. Furthermore, in 56 patients with pancreatic cancer, the expression levels of TNFAIP8 in patients with low tumor stage was higher than that with high tumor stage, and correlated with tumor staging and lymph node metastasis (P<0.05). Furthermore, TNFAIP8 expression positively correlated with EGFR levels (r=0.671135, P<0.05). These results indicate that TNFAIP8 may play important roles in the progression of pancreatic cancer.

DEVELOPMENT OF NONLINEAR PHENOMENA IN STANDING WAVE

LIU Ke,MAA Dah-You 한국소음진동공학회 1994 한국소음진동공학회 국제학술대회논문집 Vol.1994 No.3

Tools Setting of 5 Axis Ultra-Precision Single point Diamond Lathe without OTS

Ke-Tian Li,Xin Chen,Xin-Du Chen,Qiang Liu,Xiang-bo Ouyang,Hong-Jian Xia,Jian-Qun Liu 한국생산제조학회 2014 한국생산제조시스템학회 학술발표대회 논문집 Vol.2014 No.9(2)

The Dynamic Relationship between the NFT Index and Macroeconomic Factors in Korea

Ke-Qin Liu,Ai-Lian Bian 한국무역연구원 2023 무역연구 Vol.19 No.3

Purpose – This study attempts to analyze the dynamic relationship between the NFT index and macroeconomic factors, and make effective suggestions using research methods in the field of management finance. Design/Methodology/Approach – The study sample was from January 2020 to March 2023. The variables used in the analysis were based on monthly time series data, measured on the basis of the Metaverse–NFT Index (MVNX) index released by Wavebridge Limited in Korea to reflect the growth trend of the NFT market, money supply, US dollar–won exchange rate, gross domestic product, consumer price index, and other macroeconomic indicators. The analytical tools in this study included a unit root test based on the VAR model, the Johansen cointegration Test, Granger causality test, impulse response analysis, and variance decomposition. These methods are very effective in analyzing time series data. Findings – The results of the analysis show that macroeconomic factors, such as money supply, exchange rate, GDP, and consumer price index are important sources of information in predicting the NFT index. Research Implications – The results of this study are expected to provide practical information for NFT users, virtual asset trading platforms, investors, and policymakers related to NFT ecology. Furthermore, this study’s findings are of great significance, being the first global study to explore the relationship between NFTs and macroeconomic factors.