중일 양국의 해양 패턴 조형 비교연구

녕우안 (Ning,YuAn),최문천 (Cui,WenQian),우철위 (Yu,TieWei) 한국해양디자인학회 2024 JMDR 해양디자인학연구 Vol.2 No.1

As an important cultural symbol, Chinese ocean pattern plays an important role in the traditional culture of China and Japan. This paper discusses their historical background, characteristics, influence and inheritance in cultural exchange through the comparative study of Chinese and Japanese Marine patterns. Firstly, this paper analyzes the importance of Marine patterns in cultural exchanges, and introduces the current situation of the study of Marine patterns in China and Japan. Secondly, the paper makes a detailed comparative study on the historical background and characteristics of Chinese and Japanese Marine patterns, including the origin and development of ancient Marine patterns, patterns and meanings. Then, by comparing the patterns and meanings of Chinese and Japanese ocean patterns, we find the similarities and differences between them. Then, it discusses the influence of ocean patterns in cultural exchanges, including the mutual influence of ocean patterns between China and Japan and the significance of ocean patterns to cultural inheritance. Finally, the application of Marine pattern in design and art is analyzed, and the development direction of Marine pattern research in the future is prospected. The purpose of this study is to deepen the understanding of the Marine patterns of China and Japan and promote the cultural exchanges and cooperation between the two countries. 본 연구 중국 해양 중요한 문화 기호로서 중국과 일본의 전통 문화에서 중요한 역할을 한다. 이 연구는 중국과 일본의 해양 패턴에 대한 비교 연구를 통해 역사적 배경과 특징 문화교류에서의 영향과 계승에 대해 논의한다. 먼저 문화교류에서 해양문양의 중요성을 분석하고 중국과 일본의 해양문양 연구 현황을 소개했다. 다음으로 고대 해양 문양의 기원과 발전 문양과 의미 등 중국과 일본해양 문양의 역사적 배경과 특성에 대한 상세한 비교 연구를 수행하였다. 그런 다음 중국과 일본의 해양 문양의 양식과 의미를 비교하여 유사성과 차이점을 발견했다. 이어 중국과 일본의 해양문양 상호 영향과 해양문양이 문화유산에 미치는 의미 등 문화교류에서 해양문양이 미치는 영향에 대해 논의했다. 마지막으로 디자인과 예술에서 해양 패턴의 적용을 분석하고 향후 해양 패턴 연구의 발전 방향을 전망한다. 본 연구의 목적은 중일 양국의 해양 패턴에 대한 인식을 높이고 중일 양국의 문화교류와 협력을 촉진하는 것이다.

Real-Time Contour-Error Estimation Methods for Three-Dimensional Free-Form Parametric Curves in Contour-Following Tasks

Zhen-yuan Jia,De-Ning Song,Jian-Wei Ma,Xiao-Xuan Zhao,Ning Zhang 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.2

It is crucial to control the contour error in curved contour-following tasks caused by reasons such as servo delay and external disturbance. Contour-error estimation plays as a precondition for its further control. Existing methods can hardly keep well estimation accuracy for high-speed following of free-form curves with sharp corners, especially for three-dimensional curves. Consequently, this paper presents three high-precision real-time contour-error estimation methods for spatial free-form parametric curved contour following. By generating and updating the backstepping point according to the tangential tracking error, a multiple tangential approximation method is presented first. Then, a spatial circular approximation method is given by means of approximating the actual-position nearby region of the desired contour with a spatial circle. Finally, via modification of the Newton method so as to improve its stability without sacrificing of its fast convergence property, an initial value regeneration-based Newton algorithm is proposed for contour-error estimation. All of the presented methods take both estimation precision and calculation burden into consideration, and possess their own advantages. Using these algorithms, the contour error can be rapidly estimated in vector form with a high accuracy. Simulation and experimental results demonstrate the feasibility and the superiority of the presented algorithms.

Numerical Simulation of Cold Storage and Preservation of Hanfu Apple

Yuan Juan Gong,Yan Zhang,Xiaofeng Ning 한국농업기계학회 2016 바이오시스템공학 Vol.41 No.3

Purpose: To solve the decay phenomenon of Hanfu apples that occurs during storage and obtain the best environmental parameters for preserving Hanfu apples using Fluent. Methods: Preservation storage was designed by analyzing the characteristics of Hanfu-apple storage and the natural environment in northeast China. The boundary conditions and simulation of a preservation model were established. Results: Compared with the initial values, the hardness decreased by 1.95 kg/cm 2 , the sugar-acid ratio decreased by 20.43, and weight-loss rate was 3.98%. Conclusion: The results for the temperature field and velocity field of the empty storage were analyzed using Fluent. Hanfu apples can maintain good quality during the period of storage, according to our analysis of the Hanfu-apple hardness, weight loss, and change in the sugar-acid ratio during the 90-day preservation period.

Agricultural Process and Food Engineering : Original Article ; Drying Ginseng Slices Using a Combination of Microwave and Far-Infrared Drying Techniques

( Yuan Juan Gong ),( Ying Sui ),( Chung Su Han ),( Xiao Feng Ning ) 한국농업기계학회 2016 바이오시스템공학 Vol.41 No.1

Purpose: This study was performed to improve the drying quality and drying rate of ginseng slices by combining microwave and far-infrared drying techniques. Methods: Based on single-factor experiments and analyses, a quadratic regression orthogonal rotation combination design was adopted to study the effects of the moisture content at the conversion point between the microwave and far-infrared techniques, the ginseng slice thickness and the far-infrared drying temperature on the chip drying time, the surface color difference value, the nutritional composition and the surface shrinkage rate index. Results: Compared to the far-infrared drying alone, the combined microwave and far-infrared drying resulted in an increase in the saponin content of the ginseng slices and reductions in the drying time, surface color difference, and shrinkage rate. Conclusions: We established a mathematical model of the relationships between the surface shrinkage rate index and the experimental factors using the multi-objective nonlinear optimization method to determine the optimal parameter combination, which was confirmed to be the following: microwave and far-infrared moisture contents of 65%, a ginseng slice thickness of 1 mm, and a far-infrared drying temperature of 54℃.

The Net Energy Values of Corn, Dried Distillers Grains with Solubles and Wheat Bran for Laying Hens Using Indirect Calorimetry Method

Ning, D.,Yuan, J.M.,Wang, Y.W.,Peng, Y.Z.,Guo, Y.M. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.2

The present study was conducted to estimate the NE values of corn, dried distillers grains with solubles (DDGS) and wheat bran (WB) for laying hens based on an indirect calorimetry method and nitrogen balance measurements. A total of 576 twenty-eight-wk-old Dwarf Pink-shell laying hens were randomly assigned to four groups fed a basal diet (BD) or a combination of BD with 50% corn or 20% DDGS or 20% WB, with four replicates each. After a 7-d adaptation period, each replicate with 36 hens were kept in one of the two respiration chambers to measure the heat production (HP) for 6 days during the feeding period and subsequent 3-d fasting. The equilibrium fasting HP (FHP) provided an estimate of NE requirements for maintenance (NEm). The NE values of test feedstuffs was estimated using the difference method. Results showed that the heat increment that contributed 35.34 to 37.85% of ME intake was not influenced by experimental diets (p>0.05) when expressed as Mcal/kg of DM feed intake. Lighting increased the HP in hens in an fed-state. The FHP decreased over time (p<0.05) with the lowest value determined on the third day of starvation. No significant difference between treatments was found on FHP of d 3 (p>0.05). The estimated AME, AMEn, and NE values were 3.46, 3.44 and 2.25 Mcal/kg DM for corn, 3.11, 2.79, and 1.80 Mcal/kg DM for DDGS, 2.14, 2.10, and 1.14 Mcal/kg DM for WB, respectively. The net availability of AME of corn tended to be numerically higher than DDGS and WB (p = 0.096). In conclusion, compared with corn, the energy values of DDGS and WB were overestimated when expressed on an AME basis.

Overcome energy loss of exciplex-sensitized fluorescence OLEDs with separating exciton generation and fluorescence emission zone

Ning ShuYa,Wu Yuan,Wu ChuanMing,Zhang YiFan,Luo MeiTing,Wang XinYe,Wang DongDong 한국물리학회 2022 Current Applied Physics Vol.39 No.-

TADF-sensitizing-fluorescence (TSF) strategy suffered a disturbing energy loss causing by the T1 states of fluorescence dopant (FD) due to its low T1-state energy and forbidden of radiative transition. In this manuscript, we used TCTA/PO-T2T planar heterojunction (PHJ) interface as exciton generation zone and adjacent PO-T2T layer doped with rubrene as fluorescence emission zone, achieved the maximum EQE and CE of 8.3% and 26.1 cd A-1, respectively for rubrene-based device. Our experiments show the necessary PO-T2T thickness doped with rubrene is 15 nm and thicker doping layer over 15 nm would destroy device efficiency. It was further found that the exciplex exciton begin to decay within the time of 4 nm diffusion distance in PO-T2T layer and most of exciplex excitons were restrained in TCTA/PO-T2T heterojunction interface in PHJ device. The about 1.1 eV barrier for hole injection from TCTA to PO-T2T and bad hole-transporting capability of PO-T2T made exciple exciton only generate on this interface. Thus, even if the rubrene doped PO-T2T layer is right after the TCTA layer, FD in PO-T2T layer are well separated to the exciplex excitons in TCTA/PO-T2T interface, overcoming T1 energy loss caused by FD. Our approach provides a beneficial path towards overcome energy loss causing by the T1 states of FD in TSF-OLEDs based on exciplex as TADF sensitizer.

Numerical Simulation of Cold Storage and Preservation of Hanfu Apple

( Yuan Juan Gong ),( Yan Zhang ),( Xiao Feng Ning ) 한국농업기계학회 2016 바이오시스템공학 Vol.41 No.4

To solve the decay phenomenon of Hanfu apples that occurs during storage and obtain the best environmental parameters for preserving Hanfu apples using Fluent. Methods: Preservation storage was designed by analyzing the characteristics of Hanfu-apple storage and the natural environment in northeast China. The boundary conditions and simulation of a preservation model were established. Results: Compared with the initial values, the hardness decreased by 1.95 kg/cm² , the sugar-acid ratio decreased by 20.43, and weight-loss rate was 3.98%. Conclusion: The results for the temperature field and velocity field of the empty storage were analyzed using Fluent. Hanfu apples can maintain good quality during the period of storage, according to our analysis of the Hanfu-apple hardness, weight loss, and change in the sugar-acid ratio during the 90-day preservation period.

One-Pot Fast Synthesis of Leaf-Like CuO Nanostructures and CuO/Ag Microspheres with Photocatalytic Application

Ning Zhou,Meng Yuan,Dongsheng Li,Deren Yang 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.3

A time- and energy- saving solution-based chemical precipitation method was developed to synthesize leaf-like CuO nanostructures. The morphology and size of the leaf-like CuO nanostructures could be simply manipulated by controlling the type and concentration of precursors, and the oriented attachment mechanism is responsible for the formation of leaf-like shape. With the concurrent reduction reaction and at appropriate concentration, CuO/Ag microspheres could be prepared and the growth mechanism is proposed. These two structures could serve as effective photocatalyst for the degradation of rhodamine B under visible light irradiation in the presence of hydrogen peroxide. Moreover, compared to pure CuO nanostructures, the photodecomposition activity of CuO/Ag microspheres increases by 42.9% due to plasmon-enhanced light absorption.

Antioxidant Properties of Proanthocyanidins Attenuate Carbon Tetrachloride (CCl4)–Induced Steatosis and Liver Injury in Rats via CYP2E1 Regulation

Ning Dai,Yuan Zou,Lei Zhu,Hui-Fang Wang,Mu-Gen Dai 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.6

Liver steatosis is characterized by lipid dysregulation and fat accumulation in the liver and can lead tooxidative stress in liver. Since proanthocyanidins are present in plant-based foods and have powerful antioxidant properties,we investigated whether proanthocyanidins can prevent oxidative stress and subsequent liver injury. Carbon tetrachloride(CCl4) treatment can cause steatosis in rats that models both alcoholic and non-alcoholic fatty liver disease in humans. Wepre-treated rats by oral administration of proanthocyanidins extracted from grape seeds 7 days prior to intragastricallyadministering CCl4. Proanthocyanidin treatment continued for an additional 2 weeks, after which time liver and serum were harvested, and mediators of liver injury, oxidative stress, and histological features were evaluated. CCl4-treated rats exhibited significant increases in the following parameters as compared to non-treated rats: fat droplets in the liver, liver injury (ALT, AST), and DNA damage (8-OHdG). Additionally, CCl4 treatment decreased antioxidant enzymes SOD, GSH, GPX, and CAT in the liver due to their rapid depletion after battling against oxidative stress. Compared to CCl4-treated rats, treatment with proanthocyanidins effectively suppressed lipid accumulation, liver injury, DNA damage, as well as restored antioxidant enzyme levels. Further investigation revealed that proanthocyanidins treatment also inhibited expression of CYP2E1 in liver, which prevented the initial step of generating free radicals from CCl4. The data presented here show that treatment with orally administered proanthocyanidins prevented liver injury in the CCl4-induced steatosis model, likely through exerting antioxidant actions to suppress oxidative stress and inhibiting the free radical–generating CYP2E1 enzyme.

Diversity of Arbuscular Mycorrhizal Fungi Associated with a Sb Accumulator Plant, Ramie (Boehmeria nivea), in an Active Sb Mining

( Yuan Wei ),( Zhi Peng Chen ),( Feng Chang Wu ),( Ji Ning Li ),( Yu Xian Shangguan ),( Fa Sheng Li ),( Qing Ru Zeng ),( Hong Hou ) 한국미생물 · 생명공학회 2015 Journal of microbiology and biotechnology Vol.25 No.8

Arbuscular mycorrhizal fungi (AMF) have great potential for assisting heavy metal hyperaccumulators in the remediation of contaminated soils. However, little information is available about the symbiosis of AMF associated with an antimony (Sb) accumulator plant under natural conditions. Therefore, the objective of this study was to investigate the colonization and molecular diversity of AMF associated with the Sb accumulator ramie (Boehmeria nivea) growing in Sb-contaminated soils. Four Sb mine spoils and one adjacent reference area were selected from Xikuangshan in southern China. PCR-DGGE was used to analyze the AMF community composition in ramie roots. Morphological identification was also used to analyze the species in the rhizosphere soil of ramie. Results obtained showed that mycorrhizal symbiosis was established successfully even in the most heavily polluted sites. From the unpolluted site Ref to the highest polluted site T4, the spore numbers and AMF diversity increased at first and then decreased. Colonization increased consistently with the increasing Sb concentrations in the soil. A total of 14 species were identified by morphological analysis. From the total number of species, 4 (29%) belonged to Glomus, 2 (14%) belonged to Acaulospora, 2 (14%) belonged to Funneliformis, 1 (7%) belonged to Claroideoglomus, 1 (7%) belonged to Gigaspora, 1 (7%) belonged to Paraglomus, 1 (7%) belonging to Rhizophagus, 1 (7%) belonging to Sclervocystis, and 1 (7%) belonged to Scutellospora. Some AMF sequences were present even in the most polluted site. Morphological identification and phylogenetic analysis both revealed that most species were affiliated with Glomus, suggesting that Glomus was the dominant genus in this AMF community. This study demonstrated that ramie associated with AMF may have great potential for remediation of Sb-contaminated soils.