• Title/Summary/Keyword: Complex port

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The Generative Mechanism of Cloud Streets

  • Sung-Dae Kang;Fujio Kimura
    • Journal of Environmental Science International
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    • v.1 no.2
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    • pp.119-124
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    • 1992
  • Cloud streets were successfully simulated by numerical model (RAMS) including an Isolated mountain near the coast, large sensible heat flux from the sea surface, uniform stratification and wind velocity with low Froude number (0.25) in the inflow boundary The well developed cloud streets between a pair of convective rolls are simulated at a level of 1 km over the sea. The following five results were obtained: 1) port the formation of the pair of convective rolls, both strong static instability and a topographically induced mechanical disturbance are strongly required at the same time. 2) Strong sensible heat flux from the sea surface is the main energy source of the pair of convective rolls, and the buoyancy caused by condensation in the cloud is negligibly small. 3) The pair o( convective rolls is a complex of two sub-rolls. One is the outer roll, which has a large radius, but weak circulation, and the other is the inner roll, which has a small radius, but strong circulation. The outer roll gathers a large amount of moisture by convergence in the lower marine boundary, and the inner roll transfers the convergent moisture to the upper boundary layer by strong upward motion between them. 4) The pair of inner rolls form the line-shaped cloud streets, and keep them narrow along the center-line of the domain. 5) Both by non-hydrostatic and by hydrostatic assumptions, cloud streets can be simulated. In our case, non-hydrostatic processes enhanced somewhat the formation of cloud streets. The horizontal size of the topography does not seem to be restricted to within the small scale where non-hydrostatic effects are important.

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Impact of Fermentation Rate Changes on Potential Hydrogen Sulfide Concentrations in Wine

  • Butzke, C.E.;Park, Seung-Kook
    • Journal of Microbiology and Biotechnology
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    • v.21 no.5
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    • pp.519-524
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    • 2011
  • The correlation between alcoholic fermentation rate, measured as carbon dioxide ($CO_2$) evolution, and the rate of hydrogen sulfide ($H_2S$) formation during wine production was investigated. Both rates and the resulting concentration peaks in fermentor headspace $H_2S$ were directly impacted by yeast assimilable nitrogenous compounds in the grape juice. A series of model fermentations was conducted in temperature-controlled and stirred fermentors using a complex model juice with defined concentrations of ammonium ions and/or amino acids. The fermentation rate was measured indirectly by noting the weight loss of the fermentor; $H_2S$ was quantitatively trapped in realtime using a pre-calibrated $H_2S$ detection tube which was inserted into a fermentor gas relief port. Evolution rates for $CO_2$ and $H_2S$ as well as the relative ratios between them were calculated. These fermentations confirmed that total sulfide formation was strongly yeast strain-dependent, and high concentrations of yeast assimilable nitrogen did not necessarily protect against elevated $H_2S$ formation. High initial concentrations of ammonium ions via addition of diammonium phosphate (DAP) caused a higher evolution of $H_2S$ when compared with a non-supplemented but nondeficient juice. It was observed that the excess availability of a certain yeast assimilable amino acid, arginine, could result in a more sustained $CO_2$ production rate throughout the wine fermentation. The contribution of yeast assimilable amino acids from conventional commercial yeast foods to lowering of the $H_2S$ formation was marginal.

A Study on Cultivating Professional-human Resources for Manufacturing and Processing and Sales of Guamegi (과메기 제조·가공·판매 전문인력 양성 방안에 관한 연구)

  • Park, Jong-Un;Sim, Hyun-Cheol;Cha, Cheol-Pyo
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.2
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    • pp.433-447
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    • 2013
  • In around of Guryongpo Pohang Port, a Guamegi production special zone is being established as modernized processing plants, cold storages, Guamegi research centers, or publicity centers are being built in a row with forming the tourism and culture streets as a start. Regarding the special Guamegi production zone, the local autonomous entities are promoting various projects as investing approximately 40 billion won as its budget; however, it is still very rare to elevate the level of Guamegi, the special product, and make investment plans to create a brand for it. To make a special product brand cannot be realized just by building the Guamegi industrialization processing complex, and mere publicity also does not guarantee sustainable development. It can be realized only when the product's taste or hygiene satisfies the people's needs. Therefore, this study examines the changes of Guamegi-related business and the strategies to develop Guamegi industry in order to find ways to manufacture Guamegi and cultivate specialized manpower for processing to make a special brand with Guamegi. Regarding the Guamegi business and the cultivation of specialized manpower for Guamegi, this study conducted a survey to 377 persons including the business owners, employees, or civil servants related with Guamegi. It is needed to install educational institutions to cultivate specialized manpower for Guamegi and also operate various programs so as to conduct education to cultivate specialized manpower for Guamegi. And it is necessary to elevate the quality and sanitation of Guamegi and create a brand by inducing a specialized license system that can help those involved in Guamegi business have pride.

Multi-Port Register File Design and Implementation for the SIMD Programmable Shader (SIMD 프로그래머블 셰이더를 위한 멀티포트 레지스터 파일 설계 및 구현)

  • Yoon, Wan-Oh;Kim, Kyeong-Seob;Cheong, Jin-Ha;Choi, Sang-Bang
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.45 no.9
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    • pp.85-95
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    • 2008
  • Characteristically, 3D graphic algorithms have to perform complex calculations on massive amount of stream data. The vertex and pixel shaders have enabled efficient execution of graphic algorithms by hardware, and these graphic processors may seem to have achieved the aim of "hardwarization of software shaders." However, the hardware shaders have hitherto been evolving within the limits of Z-buffer based algorithms. We predict that the ultimate model for future graphic processors will be an algorithm-independent integrated shader which combines the functions of both vertex and pixel shaders. We design the register file model that supports 3-dimensional computer graphic on the programmable unified shader processor. we have verified the accurate calculated value using FPGA Virtex-4(xcvlx200) made by Xilinx for operating binary files made by the implementation progress based on synthesis results.

A study on the interpretations of woman's body in western clothing (서양복식에 표현된 여성인체의 해석에 관한 고찰)

  • 김수경
    • Journal of the Korean Society of Costume
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    • v.37
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    • pp.163-180
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    • 1998
  • In western clothing, woman's body was port-rayed sexually as the distinction of sex was appeared, and the parts of body contain some kind of symbol of sex. Woman's body was diversly accentuated according to the divers ideal beauty concepts pursuits in the different periods. Today, in a Post-industrial Society whose social structure is very divers and complicated, the interpretation of woman's body reveals so various as the complex social structure. The purpose of this study is to comprehend the various interpretations of woman's body in the contemporary clothing. The concrete purposes of this study is as follows. First, this study is to define the concept of natural body and built body by differentiating the parts of body and searching for the sexual symbols accentuated in the western clothing. Second this study aims to review, the histori-cal process of prejudged distinction of sex in the western clothing, and to analyse the con-temporary sociocultural which forced to change this prejudged distinction of sex. Third, on the bases of this analses, this study also aims to present various interpretation on divers aspects of woman's body portrayed in the contemporary clothing. The interpretation of woman's body in the contemporary clothing were as follow. First, it is a body interpreted as a natural and neutral body which is based not so much on prejudged division of sex as on the expression of the body structure. And, it is a decomposed and recomposed body which is based on plastic principles. This body is portrayed by a layer-ing and wrapping which interrogated such traditional symbols of western clothing as collar, sleeve or trousers, skirt, etc. Second, it is a sexually symbolized body. This body is display-ed by exposure or sexual accentuation in the clothing. To conclude, a body interpreted in the contemporary clothing is no more a body accentuated by division of sex, but a body which per-mits indefinite hypotheses and interpretations under synthetic imagination.

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Design of Transmission Lines with Arbitrary Reflection Responses Using Synthesis Method for Spatially Adaptive Source Distribution (공간적응형 소스 분포 합성법을 사용한 임의의 반사응답을 갖는 전송선로 설계)

  • Park, Ui-Jun
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.39 no.5
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    • pp.243-250
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    • 2002
  • In the synthesis of the current source distribution function of an array antenna with the arbitrary radiation pattern, the Woodward-Lawson sampling method has been mainly used for the synthesis of an even function lobe pattern. In this paper, the method is extended to the synthesis of the odd function pattern and then the optimum synthesis method for the nonlinear source distribution function is proposed. The proposed method is applied to the design of nonuniform transmission lines with arbitrary reflection responses. The both dispersive impedance profiles of single and coupled nonuniform lines with arbitrary reflection responses are directly synthesized by the sampled values of a reflected spectral pattern which is optimally shaped by a perturbation of its complex null positions, hence removing the conventional step-by-step segmentation process and global optimization routines. The control problem in the case that all of port impedances are identical is also solved. The generality of the proposed method is verified by a filter design with the controlled arbitrary passband

Correlation Between Engineering Properties and Mineralogy of Clay Sediments in the Estuary of the Nakdong River (낙동강 하구지역 점토퇴적물의 광물조성과 토질물성과의 상관관계)

  • Lee Sonkap;Kim Jin-Seop;Um Jeong-Gi;Hwang Jin-Yeon
    • Journal of the Mineralogical Society of Korea
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    • v.18 no.2
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    • pp.93-107
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    • 2005
  • The estuary of Nakdong River area including Noksan industrial complex and Busan New Port is composed of thick unconsolidified sediments containing abundant clay, and thus is a potential hazardous area of ground subsidence. We analyzed mineral compositions and geotechnical properties of the clay sediments that sampled from 4 boreholes of the area, and examined vertical variations and their correlations. The results showed correlations between some mineral constituents and geotechnical properties of clay sediments. A positive correlation showed between quartz content and wet unit weight, whereas a negative correlation showed between quartz content and liquid limit. Feldspar content and water content showed a negative correlation, whereas content of clay minerals and liquid limit showed a positive correlation. And also, there is a negative correlation between content of clay minerals and wet unit weight. Correlation equations are obtained from the multiple regression analyses among plastic index, content of clay mineral, smectite and clay fraction.

A Study on the IUU Governance System of Regional Fishery Management Organization and Major State (국제 지역 수산 관리 기구와 주요 국가의 IUU 통제제도 연구)

  • Park, Min-Gyu
    • The Journal of Fisheries Business Administration
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    • v.41 no.3
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    • pp.103-127
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    • 2010
  • The FAO reports that IUU fishing activities have widespread economic, social, and management consequences, including depriving legitimate fishers of harvest opportunities. It affects all fisheries from small scale to industrial. It also affects the ability of governments to support sustainable livelihoods for fishers and, more broadly, to achieve food security. The complexity of IUU requires various measures to combat IUU fishing such as adoption of IUU vessel lists; stronger port State controls; improved monitoring, control and surveillance (MCS); implementation of market-related measures to help ensure compliance; and capacity-building assistance. Trade and market measures reduce opportunities for IUU fishing activities by precluding or impeding access to markets for IUU product in a manner consistent with international law. ICCAT, CCAMLR, and IATTC, have put in place trade tracking programs or catch documentation schemes, and WCPFC is considering such a program. Vessel lists assist enforcement authorities in determining which vessels are or are not authorized to be fishing or conducting fishing support activities in specified areas. A number of RFMOs maintain records of IUU vessels: CCAMLR, IATTC, ICCAT, NAFO, NASCO, NPAFC, WCPFC. Section 608 of the US MSRA calling on the Secretary of Commerce, in consultation with the Secretary of State, and in cooperation with relevant regional fishery management councils and any relevant advisory committees, to take actions to improve the effectiveness of international fishery management organizations in conserving and managing stocks under their jurisdiction. EU IUU Regulation entered into force on 1 January 2010, was intended to regulate the highly complex multi-channel fisheries supply system of the European Community (EC) in an effort to improve global fisheries sustainability.

Evaluation of the new coastal protection scheme at Mamaia Bay in the nearshore of the Black Sea

  • Niculescu, Dragos M.;Rusu, Eugen V.C.
    • Ocean Systems Engineering
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    • v.8 no.1
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    • pp.1-20
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    • 2018
  • The target area of the proposed study, Mamaia beach, is a narrow stretch of sand barrier island that sits between the Siutghiol Lake and the Black Sea. In the northern part of the bay, is located the Midia Port, where between 1966 and 1971 a long extension of 5 km of the offshore was built. Because of this extension, the natural flow of sediments has been significantly changed. Thus, the southern part of the Mamaia Bay had less sand nourishment which meant that the coast was eroding and to prevent it a protection of six dikes was built. After approximately forty years of coastal erosion, the south of the Mamaia Bay had in 2016 a new protection scheme, which includes first of all the beach nourishment and a new dike structure (groins scheme for protection) to protect it. From this perspective, the objective of the proposed study is to evaluate the effectiveness of the old Master plan against the new one by modeling the outcome of the two scenarios and to perform a comparison with a third one, in which the protection dikes do not exist and only the artificial nourishment has been done. In order to assess the wave processes and the current patterns along the shoreline, a complex computational framework has been applied in the target area. This joins the SWAN spectral phase averaged model with the 1D surf model. Furthermore, new UAV technology was also used to map out, chart and validate the numerical model outputs within the target zone for a better evaluation of the trends expected in the shoreline dynamics.

Convergence Approach of the Marine Tourism Policy (해양관광 정책의 융복합적 접근에 관한 연구)

  • Lee, Jung-Chul
    • Journal of Digital Convergence
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    • v.15 no.2
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    • pp.233-238
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    • 2017
  • The purpose of this study is to investigate the necessity of policy approach in terms of complex combination of tourists and fishing villages. In order to achieve the purpose of this study, the policies related to the marine tourism industry were investigated and the laws related to the development of the coastal area and fishing port area were investigated. As a convergence approach to marine tourism policy, First, the development of marine tourism resources should be based on the increase of hydrophilic activities and the characteristics of the four seasons. In particular, the need to dig through support of projects such as the successful model that made aquarium associations etc. that are currently in progress, such as "fishing village experience".