Development of Aquatic Golden Tourist Track Based on Culture Leisure Angle

Wen Yan(温,燕),Sheng Zhijun(盛志军,) 세계문화관광학회 2010 Conference Proceedings Vol.11 No.0

水上黄金旅游线是当今旅游开发的热点,本文以富春江(富阳段)为例,从文化休闲的视角下,分析了富春江旅游资源现状,并构建了以山水文化、历史文化、运动文化休闲为主要内涵的休闲旅游产品,并提出包括基础设施、品牌产品、客源市场和管理服务在内的支撑体系 Aquatic golden tourist track is the the present hotspots of travelling. This paper introduced Fuchun River as an example, from the Culture leisure angle, analyzed its current situation of the leisure resource, established traveling products mainly from the leisure of scenery, history, Sports and culture, and proposed supporting system included by infrastructure, competitive products, tourist market, management and service.

Influence of light-burned spinel on the slag resistance of alumina-spinel refractory castables

Wen Yan 한양대학교 세라믹연구소 2014 Journal of Ceramic Processing Research Vol.15 No.6

Slag resistances of alumina-spinel castables containing different types of spinel were investigated using the static crucible test. The corroded samples were characterized using an X-ray diffractometer, a scanning electron microscope, microscopic measurement method etc. Based on the results, the effects of light-burned spinel and commercial fused spinel on the slag resistance of the castables were discussed and compared. It has been found that light-burned spinels could improve the slag penetration resistance of alumina-spinel castable more efficiently than their fused counterparts, if their chemical composition, particle size, lattice distortion extent and grain size are properly controlled. The light-burned spinel containing 70 wt% Al2O3 has greater lattice distortion and smaller particle size, making the penetrated slag more viscous and resulting in smaller pore sizes in the matrix. On the other hand, its smaller grain size only results in a slightly higher dissolution rate. Therefore, compared with the fused spinel containing the same amount of Al2O3, it could greatly enhance the slag penetration resistance of the castable while only slightly negatively affecting the corrosion resistance.

Strength and gas permeability of porous cordierite-mullite ceramics with different phase compositions and microstructures prepared by a pore-forming in-situ technique

Wen Yan 한양대학교 세라믹연구소 2013 Journal of Ceramic Processing Research Vol.14 No.1

Seven porous cordierite-mullite ceramics with different phase compositions and microstructures were fabricated by a poreforming in-situ technique. The phase composition, pore characteristics, strength and thermal shock resistance were investigated through X-ray diffractometry (XRD), scanning electron microscopy (SEM), and a microscopical measured method, etc. It was found that the porous cordierite-mullite ceramics have an apparent and interconnected pore structure; and the strength, the thermal-shock resistance and the gas permeability of the porous cordierite-mullite ceramics with different phase compositions and microstructures are rather different. Additionally, for the porous cordierite-mullite ceramics with an apparent and interconnected pore structure, the gas permeability mainly depends on the median pore size. A porous cordierite-mullite ceramic consisting of 25 wt.% cordierite and 71 wt.% mullite gave the best performance, which had a high porosity of 42.4%, an appropriate median pore size of 42.3 µm, a high compressive strength of 37.7 MPa, a high thermal-shock resistance and a high gas permeability of 4.68*10-12 m2 .

Fault Diagnosis Model Based on Multi-level Information Fusion for CNC Machine Tools

Wen Yan,Tan Ji-wen,Zhan Hong,Sun Xian-bin 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.8

The difficulty of CNC machine tools fault diagnosis is bigger than other general equipments because of the complex structure and the coupling among subsystems. The fault diagnosis model based on multi-level information fusion and hybrid intelligence is studied to improve reliability of fault diagnosis. Information from built-in sensors is used to monitor the status of CNC machine tools. The diagnosis principles of internal parameters-motor current, torque, temperature and following error are analyzed. Internal information and external sensors are two main sources which provide data to diagnosis. In order to detect effective fault signal, features of time domain, frequency domain and time-frequency domain are extracted. All these features constitute the feature set. The features are selected by the method of Kernel Principal Component Analysis (KCPA). Then the sensitive feature set is obtained. The method of multiple classifier fusion based on fuzzy comprehensive evaluation is researched. The determination method of weight based on information entropy is proposed. This diagnosis model has been tested feed system mechanical fault diagnosis of CNC machine tools and the results show which is effective and versatile.

A study of the development of crystal shape of mullite prepared from Al(OH)3 and kaolinite gangue

Wen Yan 한양대학교 세라믹연구소 2010 Journal of Ceramic Processing Research Vol.11 No.6

Lightweight corundum-mullite refractories: II, Effects of porous aggregates on the slag resistances of corundum-mullite refractories

Wen Yan,Qingjie Chen,Xiaoli Lin,Junfeng Chen,Nan Li 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.4

Corrosion of five corundum-mullite refractories with the different porous aggregates and the same matrix by the blast furnaceslag was conducted using the static crucible test. Effects of properties of corundum-mullite aggregates on the slag resistanceof refractories were investigated through X-ray diffractometer (XRD), scanning electron microscopy (SEM), and mercuryporosimetry measurement, etc. It is found that the porous corundum-mullite aggregates have different slag absorbing capacity,which affects the composition of the corroded aggregates and matrices at slag/refractory interface, and thus affects the slagcorrosion and penetration resistances. Comparing with the dense corundum-mullite refractory, the porous corundum-mulliteaggregate with 31.6% apparent porosity (AP) substituting the dense aggregates in the refractories does not make the slagresistance degenerate and reduces the bulk density by 16.7 wt%; whereas, when the APs of aggregates increase to 41.6-44.8%,the slag resistance sharply deceases. It is a successful case that the developed lightweight refractory with high slag resistancehas a potential application for working lining of high-temperature furnace.

Influence of the properties of corundum aggregates on the strength and slag resistance of refractory castables

Wen Yan,Nan Li,Zheng Miao,Guangping Liu,Yuanyuan Li 한양대학교 세라믹연구소 2012 Journal of Ceramic Processing Research Vol.13 No.3

Three refractory castables containing corundum aggregates with different porosities, average pore size and strength and the same matrices were fabricated. The effects of the properties of corundum aggregates on the strength and slag resistance of refractory castables were investigated through an X-ray diffractometer (XRD), scanning electron microscopy (SEM), mercury porosimetry measurements, etc. It was found that the properties of corundum aggregates have an important effect on the bulk density, porosity, compressive strength and slag resistance of refractory castables, but have little effect on the flexural strength of refractory castables. Compared with a castable containing white fused corundum aggregate (with a porosity of 4.2% and a bulk density of 3.62 g/cm3), the castable containing a porous corundum aggregate (with a porosity of 42.0% and a bulk density of 2.29 g/cm3) has a higher porosity of 35.7%, a lower bulk density of 2.44 g/cm3, a lower but sufficient compressive strength (80.4 MPa) and a lower slag resistance, but has a similar flexural strength (20.3 MPa), and then has a potential application for a non-slag working lining of a ladle to decrease the consumption of energy and Al2O3 material.

Effects of sintering temperature on pore characterization and strength of porous corundum-mullite ceramics

Wen Yan,Nan Li,Bingqiang Han 한양대학교 세라믹연구소 2010 Journal of Ceramic Processing Research Vol.11 No.3

The effects of sintering temperature on the pore characteristics and strength of porous corundum-mullite ceramics made from Al(OH)3, kaolinite gangue and MgCO3 were investigated through an X-ray diffractometer (XRD), scanning electron microscopy (SEM), mercury porosimetry measurement, etc. It was found that the sintering temperature strongly affects the formation of secondary mullite, and then changes the pore characteristics and strength. The formation of secondary mullite takes place extremely quickly at 1500 oC. The pore size distributions are bimodal in samples sintered at 1300 oC and 1400 oC,and mono-modal in samples sintered at 1500 oC and 1600 oC. The strength are the same and low when the sintering temperatures are 1300 oC and 1400 oC, and increase sharply when the sintering temperature is increased to 1500 oC. The most apposite mode is a sample sintered at 1500 oC which has a high mullite content (86.6 wt%), high apparent porosity (42%), high crushing strength (52 MPa) and a homogeneous pore size distribution.

Lightweight corundum-mullite refractories: I, Effects of pore characteristics and phase compositions on the slag resistance of porous corundum-mullite aggregates

Wen Yan,Xiaoli Lin,Junfeng Chen,Qingjie Chen,Nan Li 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.3

Corrosion of five corundum-mullite aggregates with the same chemical composition and the different pore characteristics andphase compositions by the blast furnace slag were conducted using the static crucible test. Effects of pore characteristics andphase compositions on the slag resistance of the aggregates were investigated through X-ray diffractometer (XRD), scanningelectron microscopy (SEM), mercury porosimetry measurement and FactSage® software, etc. It is found that the porecharacteristics and phase compositions strongly affect the slag resistance of the aggregates. With an increase in apparentporosities (1.4-41.6%), the slag penetration and corrosion resistances of aggregates decrease evidently. When the apparentporosities are in the range of 41.6-44.8%, the pore size plays more important role in the penetration resistance than theviscosity of the slag penetrated; the pore size of 2.74 µm can greatly inhibit the slag penetration. Under the conditions of largedifference in the apparent porosities, the phase compositions have little effect on the corrosion resistance; whereas, when theapparent porosities are similar, the higher the corundum content, the higher the corrosion resistance is.

한·중의 사인시스템 디자인 비교 분석에 관한 연구 -체계적 논문고찰-

왕문염 ( Wang¸ Wen Yan ),신윤진 ( Shin¸ Yoon Jhin ) 한국기초조형학회 2021 기초조형학연구 Vol.22 No.1

본 연구의 목적은 사인 시스템 디자인에 관한 한국과 중국의 논문을 고찰하고, 양국의 연구 추세를 비교 분석해 향후 보완해야 할 부분을 파악하는 것으로 연구 방향을 제시하고자 한다. 본 논문의 연구대상은 2000년부터 2019년까지 발표된 한국과 중국의 박사논문, 학술지논문으로, ‘사인’, ‘사인 시스템 디자인’을 키워드로 검색한 142편의 논문을 대상으로 하였다. 연구 추세에 대한 분석은 논문편수, 연구주제, 연구범위, 연구대상, 연구방법으로 분류하였으며, 분석대상을 포괄적으로 연구하였다. 분석결과를 정리하면 다음과 같다. 1)중국의 논문 수는 한국보다 많지만, 깊이 있고 체계적인 박사 논문연구는 중국보다 풍부한 것으로 드러났다. 2) 한· 중 양국의 사인 시스템 디자인 연구 분야는 모두 다 학제적인 연구를 포함하고 있었다. 3) 한· 중 양국의 사인 시스템 디자인에 관한 연구주제는 기본적으로 동일한 것으로 나타났지만, 연구 중점분야는 서로 다른 것으로 드러났다. 4) 양국의 연구 중점분야가 서로 다르므로 사인 시스템 연구범위의 선정에 있어서도 차이를 보였다. 5) 한·중 양국은 연구 대상의 선정에 있어 모두 일반인을 대상으로 한 연구가 제일 많았다. 6) 한국의 연구방법은 3가지 이상의 연구 방법을 채택한 종합 연구가 90%로 나타났으나 중국에서 3가지 이상의 연구 방법을 채택한 문헌은 전체의 22%를 차지하는 것으로 나타났다. 7) 한국 논문에서는 정성 분석법과 정량 분석법이 교차적으로 사용되었으나, 중국은 주로 정성 연구 방법을 사용하였고, 디자인가이드라인에 관한 원칙과 기준을 많이 제시하되 이에 대한 근거에 대해서는 나와 있지 않았다. The purpose of this research is to investigate the literature which is related to sign system design in Korea and China, compare and analyze the research trends of sign system design of the two countries, and understand the research trends of the sign system design in Korea and China and the areas that need to be improved in the future,to point out the direction for future research. The research targets are Korean and Chinese Ph.D. papers and KCI academic journals published from 2000 to 2019. Also, 142 documents searched with keywords “ Sign ” and “ Sign System Design”. The research trend analysis conducts a comprehensive research on the analysis papers according to number of papers, research topics, scopes, objects and methods. The analysis results are as follows. 1) The total number of relevant documents in China is more than that of Korea, but Korea has more research on high-level systematic doctoral dissertations. 2) Both Korea and China are involved in multidisciplinary research in the field of sign system design research. 3) It is found that Korea and China have the same category of research topics for the sign system design, but the focus is different. 4)Korea and China also differ in the selection of the research scope of the sign system due to the different focus of research topics. 5) Both Korea and China had the most research targeting the general public when it came to the selection of research subjects. 6) According to the data, more than 90% of the literature in Korea is a comprehensive study using more than 3 research methods, by comparison only 22% of the literature in China using more than 3 research methods. 7) In Korean literature, qualitative and quantitative cross-analysis methods are mostly used, while research on the design of sign systems in China often gives qualitative design principles and standards. Also the research on quantitative analysis methods is relatively scarce.