RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
        • 등재정보
        • 학술지명
          펼치기
        • 주제분류
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        1920년대 한·중 문예논쟁시기 유기석의 아나키즘문예인식에 대한 재고

        張慧雯 ( Zhang¸ Huiwen ),金哲 ( Jin¸ Zhe ) 중국어문연구회 2021 中國語文論叢 Vol.- No.107

        The purpose of this study is to research Yu Kiseok’s views and cognitive characteristics on literature and art. Yu Kiseok (1905-1980) was an Korean anti-Japan independence activist and anarchist who had been active in China. In the early and middle 1920s, Yu Kiseok was influenced by anarchism through the exchanges and communication with Korean anarchists in China and Chinese anarchists, and began to pay attention to anarchism literature and art. Later, influenced by Kropotkin’s and Tolstoy’s literary thoughts, in the late 1920s he participated in the literary debates between anarchism and marxism in Korea and China and published a number of articles to clarify his unique views on literature and art. This paper investigates Yu Kiseok’s opinions and views on literature and art from three aspects: the subject attribute, the social attribute and the essential attribute, deeply explaining the equality consciousness and the public, the resistance consciousness and social utility, the life consciousness and individuality, and further extracts the reasonable factors to discuss the significance of them. Generally speaking, Yu Kiseok’s opinions and views on literature and art have the following special historical significance. Firstly, the “subjectivity of literature and art”, the life consciousness and the emphasis on the importance of individuality reflected the independence and originality of literature and art. It is directly related to the essence of literature and art, and gives us quite a few enlightenments that enables us to understand them more deeply. Secondly, he integrated class consciousness and ideology into literature and art, and emphasized the resistance and struggle of literature and art against imperial oppression, which has very important practical significance. Thirdly, his opinions and views on literature and art made a certain contribution to enhancing the vitality and combat effectiveness, enriching the literary theories at that time. This paper hopes to provide some reference for a more comprehensive understanding of Yu Kiseok and his views on literature and art, and objectively evaluate the significance and value of his anarchism literary thought in the history of Korean and Chinese literary criticism in the 1920s.

      • KCI등재

        Optimized Multiple Description Lattice Vector Quantization Coding for 3D Depth Image

        ( Huiwen Zhang ),( Huihui Bai ),( Yao Zhao ),( Meiqin Liu ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.3

        Multiple Description (MD) coding is a promising alternative for the robust transmission of information over error-prone channels. Lattice vector quantization (LVQ) is a significant version of MD techniques to design an MD image coder. However, different from the traditional 2D texture image, the 3D depth image has its own special characteristics, which should be taken into account for efficient compression. In this paper, an optimized MDLVQ scheme is proposed in view of the characteristics of 3D depth image. First, due to the sparsity of depth image, the image blocks can be classified into edge blocks and smooth blocks, which are encoded by different modes. Furthermore, according to the boundary contents in edge blocks, the step size of LVQ can be regulated adaptively for each block. Experimental results validate the effectiveness of the proposed scheme, which show better rate distortion performance compared with the conventional MDLVQ.

      • KCI등재

        Nonlinear Increase of Spatial Noise for Ultrashort Pulses with Different Temporal Widths

        Lifu Zhang,Xiquan Fu,Jianqin Deng,Hua Yang,Youwen Wang,Shuangchun Wen,Huiwen Xu,Jinggui Zhang,Jin Zhang,Dianyuan Fan 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.2

        In this paper, the dynamic evolution of the spatial noise modulation of ultrashort laser pulses in carbon disulfide (CS2) is investigated experimentally, and different temporal widths of the stretched pulse are analyzed for spatial noise gain. The spatial noise evolution (i.e., small-scale self-focusing) of ultrashort laser pulses with different temporal widths as a function of the length of the CS2 has been observed. If the spectral bandwidth is invariant, the experimental results show that a stretched pulse with a broader temporal width can postpone the small-scale self-focusing of spatial noise for longer medium length with constant input power or for greater input power with the same medium length. In this paper, the dynamic evolution of the spatial noise modulation of ultrashort laser pulses in carbon disulfide (CS2) is investigated experimentally, and different temporal widths of the stretched pulse are analyzed for spatial noise gain. The spatial noise evolution (i.e., small-scale self-focusing) of ultrashort laser pulses with different temporal widths as a function of the length of the CS2 has been observed. If the spectral bandwidth is invariant, the experimental results show that a stretched pulse with a broader temporal width can postpone the small-scale self-focusing of spatial noise for longer medium length with constant input power or for greater input power with the same medium length.

      • KCI등재

        재중 한인 아나키스트 유기석과 중국 매체 관련 연구 - 새로 발굴된 1925-1950년 전후의 자료를 중심으로 -

        張慧雯 ( Zhang Huiwen ),金哲 ( Jin Zhe ),金善花 ( Jin Shanhua ) 반교어문학회 2023 泮橋語文硏究 Vol.- No.65

        본 논문은 재중 한인 아나키스트이자 문예론자인 유기석이 20세기 20년대 중반부터 50년대 초반까지 중국매체들에 발표한 자료 중, 새로 발굴한 자료들을 주로 고찰하면서 그 자료들의 가치를 분석하여 평가하고 그에 새로운 의미를 부여하는 것을 연구목적으로 삼았다. 재중 항일아나키스트로서 유기석은 독립운동에 적극 참가하는 한편 중국의 여러 매체들에 자신의 아나키즘 이상과 사상을 표명한 문장들을 다수 발표했는바 현재까지 발굴하여 정리한 글들이 무려 170 여 편에 달한다. 그리고 유기석은 이 시기 중국 여러 신문과 잡지들의 창간이나 편집에 관여하였는데 그 관련 매체수가 27종에 달한다. 이와 같은 활발한 문필활동과 편집활동들에서 우리는 그의 아나키즘이상에 대한 집념과 추구를 엿볼 수 있다. 그가 발표한 문장들은 대체로 다음과 같은 몇 가지 특징이 있다. 우선, 장르가 다양하다. 그의 문장에는 문예평론 외에도 기행문, 시, 수필(산문), 회고록 같은 문체가 있는가 하면 사회와 경제, 또는 국제정치를 다룬 정론도 있다. 유기석은 이와 같은 문체들을 통해 자신의 사상과 감정을 다각도로 표현하고 있다. 다음, 내용이 매우 풍부하다. 유기석의 문예비평들은 주로 아나키즘문예이론에 대한 견해, 즉 그가 극구 주장한 민중 중심의 ‘민중예술론’ 등을 주로 보여주고 있으며 시나 수필 및 기행문들은 디아스포라 한인으로서 이국땅에서 살아가면서 느낀 사적인 감정, 사상적인 고민, 소감 등을 보여주고 있다. 그리고 정론이나 사회 논평들은 주로 식민지 국내현실과 조선에 대한 일본의 약탈정책과 탄압에 대한 비판, 미국과 일본, 러시아, 그리고 유럽의 독일, 영국, 이탈리아, 프랑스 등 세계열강들 간의 외교 및 군사적 갈등, 각 나라들의 내부 법률제도와 경제정책, 또는 한국과 인도, 필리핀 등을 포함한 동방약소민족 국가들의 자유민주운동과 독립운동 상황이나 각국의 무정부주의운동에 대한 견해, 반식민지 중국의 농업경제상황과 사회현실문제 등에 대한 유기석 나름의 견해들을 보여주고 있다. 총괄적으로 유기석의 문장들에서 우리는 아나키스트로서 그의 아나키즘이상에 대한 추구와 자유평등에 대한 갈망, 높은 시대적 사명감, 강자가 약자를 억압하는 불합리한 현실을 개혁하고자 하는 강인한 의지와 투쟁정신, 그리고 남다른 국제적 안목과 넓은 학식, 깊은 문예 소양도 엿볼 수 있다. 유기석은 아나키즘사상을 철학적으로 논의한 문예론자일 뿐만 아니라 그것을 민중 해방의 실천에 접목시키고자 노력한 행동주의아나키스트였다. This paper mainly investigates newly discovered articles published in Chinese media from the mid-20s to the early 50s of the 20th century by Yu Ki-seok, a Korean anarchist and literary scholar in China, analyzes and evaluates the value of those articles, and gives them new meaning. As an anti-Japanese anarchist in China, Yu Ki-seok actively participated in the independence movement and published many articles expressing his anarchist ideals and thoughts in various Chinese media. As many as 170 articles have been discovered and organized to date. Yu Ki-seok was involved in the founding and editing of various Chinese newspapers and magazines during this period, and the number of related media reached 27 types. In these active writing and editing activities, we can get a glimpse of his obsession and pursuit of anarchist ideals. The articles he published generally have the following characteristics. First of all, there are various genres. In addition to literary criticism, his writings include styles such as travel writing, poetry, essays (prose), and memoirs, as well as political opinions dealing with society, economy, or international politics. Yu Ki-seok expresses his thoughts and emotions in various ways through these writing styles. Next, the content is very rich. Literary criticism mainly shows his views on anarchist literary theory, that is, the people-centered ‘people’s art theory’ that he strongly advocated, and his poems, essays, and travel writings reflect his personal emotions, ideological concerns, and impressions he felt while living in a foreign land as a diaspora Korean. It shows the back. Political opinions and social commentary mainly include criticism of the colonial domestic reality and Japan’s plundering policy and oppression of Joseon, diplomatic and military conflicts between the United States, Japan, Russia, and world powers such as Germany, Britain, Italy, and France in Europe, and Each country’s internal legal system and economic policy, the situation of liberal democratic movements and independence movements in Eastern countries including Korea, India, and the Philippines, views on anarchist movements in each country, and the agricultural economy and social problems of semi-colonial China. It introduces awareness, etc. Overall, through Yu Ki-seok’s articles, we can observe his pursuit of anarchist ideals as an anarchist, his yearning for freedom and equality, his strong sense of duty towards the times, his unwavering will and fighting spirit to challenge the unreasonable reality where the powerful oppress the weak, and his remarkable international perspective. We can also gain a glimpse of his extensive knowledge and profound literary understanding. Yu Ki-seok was not only a literary scholar who philosophically explored anarchist ideas, but also an active anarchist who endeavored to integrate them into the practice of people’s liberation.

      • KCI등재

        Effect of acidic properties of hierarchical HZSM-5 on the product distribution in methanol conversion to gasoline

        Huiwen Huang,Hui Zhu,Qiang Zhang,Chunyi Li 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.2

        Hierarchical ZSM-5 zeolites with different SiO2/Al2O3 ratio but similar crystal size were directly synthesized by a single-template hydrothermal method, and the intrinsic effect of acidic properties on their catalytic performance in methanol to gasoline (MTG) reaction was comprehensively investigated. The physicochemical properties of HZSM-5 zeolites were characterized by XRD, N2 adsorption-desorption, SEM, NH3-TPD, FTIR, and TGA techniques. The results show good linear correlations between the yields of gasoline components and the relative content of Brønsted acid sites, and the hierarchical HZSM-5 zeolite with SiO2/Al2O3 molar ratio of 200 was firstly found to exhibit high reactivity, excellent product distribution and superior stability in MTG reaction, which can be attributed to its appropriate acid distribution with moderate Brønsted acid sites and proper B/L ratio, predominantly promoting gasoline range hydrocarbons production and inhibiting side reactions.

      • KCI등재

        Conversion of methanol into light olefins over ZSM-11 catalyst in a circulating fluidized-bed unit

        Xiaojing Meng,Huiwen Huang,Qiang Zhang,Minxiu Zhang,Chunyi Li,Qiukai Cui 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.3

        Methanol conversion and the reaction pathway were investigated in a pilot-scale circulating fluidized-bed (CFB) unit over hierarchical ZSM-11 catalyst. Experimental results indicated that ZSM-11 catalyst was highly resistant to external coke due to the formation of mesopores. Elevated temperatures favored the production of propylene and butylene and decreased the yield of ethylene. Additionally, no direct relations were shown between the formation of ethylene and other products under different pressures, suggesting that ethylene was a primary product produced at the initial of the reaction. Methylation-cracking and oligomerization were verified as the main reaction pathway for the formation of C3 + alkenes., Methylation and oligomerization of olefins were dominated under high methanol partial pressure and consequently responsible for the production of higher olefins, while the b-scission of C7 = for propene and butylene, and C8 = for butylene were enhanced at low methanol partial pressure.

      • KCI등재

        Efficient production of propylene and gasoline from methanol in multi-regime riser

        Xiaojing Meng,Huiwen Huang,Qiang Zhang,Chunyi Li,Qiukai Cui 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.4

        High gas-solid contact efficiency and low solid back-mixing are necessary to both promote methanol conversion and inhibit side reactions. Thus, a novel multi-regime reactor with dense-phase reaction section and dilutephase conveying region was designed. The reactor promoted stable reaction activity during a 300 h pilot-scale evaluation with high yields of propylene and gasoline. A process for maximum propylene and gasoline production from methanol (PGFM) characterized by moderate operating severity, application of ZSM-11 catalyst and novel reactor, and stratified reprocessing or etherification of light gasoline and C4 olefins was proposed. The PGFM process can be implemented in the existing FCC process and is considered to be more economic and flexible.

      • KCI등재

        Dynamic stress of impeller blade of shaft extension tubular pump device based on bidirectional fluid-structure interaction

        Kan Kan,Yuan Zheng,Shifeng Fu,Huiwen Liu,Chunxia Yang,Xin Zhang 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.4

        Current research on the stability of tubular pumps is mainly concerned with the transient hydrodynamic characteristics. However, the structural response under the influence of fluid-structure interaction hasn’t been taken fully into consideration. The instability of the structure can cause vibration and cracks, which may threaten the safety of the unit. We used bidirectional fluid-structure interaction to comprehensively analyze the dynamic stress characteristics of the impeller blades of the shaft extension tubular pump device. Furthermore, dynamic stress of impeller blade of shaft extension tubular pump device was solved under different lift conditions of 0° blade angle. Based on Reynolds-average N-S equation and SST k-ω turbulence model, numerical simulation was carried out for three-dimensional unsteady incompressible turbulent flow field of the pump device whole flow passage. Meanwhile, the finite element method was used to calculate dynamic characteristics of the blade structure. The blade dynamic stress distribution was obtained on the basis of fourth strength theory. The research results indicate that the maximum blade dynamic stress appears at the joint between root of inlet side of the blade suction surface and the axis. Considering the influence of gravity, the fluctuation of the blade dynamic stress increases initially and decreases afterwards within a rotation period. In the meantime, the dynamic stress in the middle part of inlet edge presents larger relative fluctuation amplitude. Finally, a prediction method for dynamic stress distribution of tubular pump considering fluid-structure interaction and gravity effect was proposed. This method can be used in the design stage of tubular pump to predict dynamic stress distribution of the structure under different operating conditions, improve the reliability of pump impeller and analyze the impeller fatigue life.

      • KCI등재

        Distribution characteristics of fungal communities with depth in paddy fields of three soil types in China

        Xu Li,Huanhuan Wang,Xiang Li,Xinyu Li,Huiwen Zhang 한국미생물학회 2020 The journal of microbiology Vol.58 No.4

        Little is known about the distribution of fungal communities with soil depth on relatively large scales. In this study, typical paddy soils in three regions (Hailun, Changshu, and Yingtan) from north to south China were selected to investigate the vertical distribution (0-100 cm) of the fungal community by Illumina MiSeq sequencing, and to identify the main factors influencing the fungal community distribution. The results indicated that the structure of the soil fungal community changed significantly with region and soil depth. Soil fungal taxa such as Zygomycota, Glomeromycota, Saccharomycete, Kazachstania, Mortierella, Massariosphaeria, Hypholoma, and Zopfiella were enriched at depths of 0–20 cm, whereas Dothideomycetes, Microbotryomycetes, Tremellomycetes, Sporobolomyces, Cryptococcus, Rhodotorula, Fusarium, and Pyrenochaetopsis had high relative abundances at 80–100 cm. Variance partitioning analysis indicated that the geographic distance contributed more to the fungal community variation than environmental variables on a large scale. In addition, soil total carbon and nitrogen contents were the main environmental factors driving the vertical distribution of the fungal community in paddy soils.

      • KCI등재

        Wnt pathway is involved in 5-FU drug resistance of colorectal cancer cells

        Lingfeng He,Hong Zhu,Shiying Zhou,Ting Wu,Huan Wu,Huan Yang,Huiwen Mao,Chandra SekharKathera,Avilala Janardhan,Ashlin M. Edick,Anna Zhang,Zhigang Hu,Feiyan Pan,Zhigang Guo 생화학분자생물학회 2018 Experimental and molecular medicine Vol.50 No.-

        Colorectal cancer (CRC) is one of the leading causes of cancer-related death worldwide. 5-Fluorouracil (5-FU) is widely used in the treatment of cancers, but its antineoplastic activity is limited in drug-resistant cancer cells. To investigate the detailed mechanism of 5-FU resistance, we developed a model of 5-FU-resistant cells from HCT-8 cells, a wellestablished colorectal cancer cell line. We found that the drug-resistant cells demonstrated high expression of TCF4 and β-catenin, indicating an upregulated Wnt pathway. A microarray analysis revealed that the suppression of the checkpoint kinase 1 (CHK1) pathway explained the resistance to 5-FU, especially in p53 wild-type cancer cells such as HCT-8. Our data also demonstrated that the CHK1 pathway is suppressed by the Wnt pathway in 5-FU-resistant cells. In summary, we have discovered a novel mechanism for 5-FU resistance mediated by histone deacetylation, which also revealed the crosstalk between the Wnt pathway and CHK1 pathway.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼