• 제목/요약/키워드: science and arts

검색결과 3,093건 처리시간 0.035초

청양고추 착즙액을 첨가한 천일염의 품질특성에 관한 연구 (Quality Characteristics of Sun-dried Salt and added with Cheongyang Hot Pepper (Capsicum annuum L.) Juice)

  • 박혜연;이종필
    • 한국조리학회지
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    • 제23권5호
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    • pp.87-91
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    • 2017
  • This study was conducted to investigate the quality characteristics of sun-dried salt prepared with added Cheongyang hot pepper juice(CPJ). The moisture, crude protein, crude lipid, and crude ash contents of the CPJ were 84.36%, 2.27%, 1.41%, and 0.67% respectively. The moisture content, yellowness, capsaicin, and dihydrocapsaicin of sun-dried salt increased according to the level of added CPJ, whereas the NaCl, pH, lightness, and redness value increased. The sensory evaluation results showed that preferences for the sun-dried salt increased as CPJ, approached their optimum value and decreased as they exceeded optimum levels. Consequently, the proposed optimum level in the ingredient formulation for manufacture of the standard sun-dried salt was 30% CPJ, as based on analyses. Ultimately, this study was expected to contribute to the commercialization of sun-dried salt of high quality.

초등 교육과정에서 과학과의 생물 영역과 타 교과의 내용 연계성에 대한 분석 (An Analysis of the Relationship between Biology-related Contents Presented in Science and Other Subject Matter Areas in the Elementary School Curriculum)

  • 박재근;강호감;김용진
    • 한국초등과학교육학회지:초등과학교육
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    • 제26권1호
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    • pp.63-75
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    • 2007
  • This study investigated how the contents of biology domains that were dealt with in the 7th national elementary-school science curriculum were in turn dealt with in the other subject matter areas. Through this, it was hoped that the place and identity of biology as a subject could be more clearly established and defined and additionally, more basic data for developing the new national science curriculum could be acquired at the same time. Subject matter areas that overlapped with biology in the 7th national elementary-school curriculum were practical arts, social studies and physical education. The structure and composition of specific components that were dealt with by these subject matter areas were very different from those of science, and the analysis showed that they failed to correspond across grades. Moreover, topics such as 'natural calamities and the environment' and 'human reproduction' that were dealt with by other subject matter areas, but not in science must be included for developing the new national science curriculum. Accordingly, when it comes to composing the contents of each subject matter area during creation of the new national curriculum, the relevant experts in related subject matter areas should be mobilized to conduct in-depth analysis of the following areas: viability, the most appropriate level of difficulty, and appropriateness of any hierarchy of relative importance between subjects. Additionally, efforts to reflect any improvements in the way the new national curriculum is developed which come about through this research are needed.

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HYPERBOLIC TYPE CONVEXITY AND SOME NEW INEQUALITIES

  • Toplu, Tekin;Iscan, Imdat;Kadakal, Mahir
    • 호남수학학술지
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    • 제42권2호
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    • pp.301-318
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    • 2020
  • In this paper, we introduce and study the concept of hyperbolic type convexity functions and their some algebraic properties. We obtain Hermite-Hadamard type inequalities for this class of functions. In addition, we obtain some refinements of the Hermite-Hadamard inequality for functions whose first derivative in absolute value, raised to a certain power which is greater than one, respectively at least one, is hyperbolic convexity. Moreover, we compare the results obtained with both Hölder, Hölder-İşcan inequalities and power-mean, improved-power-mean integral inequalities.

호텔주방설비가 직무만족, 자기유능감, 생산효율에 미치는 영향에 관한 연구 (A Study of the Effect of Hotel Kitchen Facilities on Production Efficiency)

  • 김인환;박헌진;정진우
    • 한국조리학회지
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    • 제13권1호
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    • pp.235-243
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    • 2007
  • The results of hotel management have revealed a lot of problems in regard to the suitable placement of kitchen facilities, equipment and utensils, appropriate positioning of kitchen workers, and management of kitchen supplies. To solve these problems, this study examined the relationships among kitchen equipment, layouts, job satisfaction, a sense of self-competence, and production efficiency, proposing the efficient management measures of a reasonable kitchen system. The following are the results. Kitchen facilities had a significant effect on job satisfaction, not on a sense of self-competence. Hotel cooks' awareness of kitchen utensils as well as kitchen layouts had significant influence on both job satisfaction and a sense of self-competence whereas hotel cooks' job satisfaction and their sense of self-competence had great influence on production efficiency.

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COMMON LOCAL SPECTRAL PROPERTIES OF INTERTWINING LINEAR OPERATORS

  • Yoo, Jong-Kwang;Han, Hyuk
    • 호남수학학술지
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    • 제31권2호
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    • pp.137-145
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    • 2009
  • Let T ${\in}$ $\mathcal{L}$(X), S ${\in}$ $\mathcal{L}$(Y ), A ${\in}$ $\mathcal{L}$(X, Y ) and B ${\in}$ $\mathcal{L}$(Y,X) such that SA = AT, TB = BS, AB = S and BA = T. Then S and T shares that same local spectral properties SVEP, property (${\beta}$), property $({\beta})_{\epsilon}$, property (${\delta}$) and decomposability. From these common local spectral properties, we give some results related with Aluthge transforms and subscalar operators.

The Openness and Protection of Urban Wetland Park - A Case Study of Nanhu National Urban Wetland Park, Tangshan

  • Liu, Beiguang;Hao, Yu;Cho, Tae-Dong
    • 한국환경과학회지
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    • 제23권12호
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    • pp.2101-2106
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    • 2014
  • The urban wetland park is an indispensable part of an ecological city. It has aroused widespread attention and even quickly planning and construction around the country. But, in terms of the nature of the urban wetland park, there is a contradiction between the protection of urban wetland resources and the openness of the urban park for public. This article starts with the necessity for construction of urban wetland park, more over expound the existent problems between the protection and openness of the urban wetland park and to propose appropriate measures through the case study on Nanhu National Urban Wetland Park, Tangshan.

Reactions of Some Furan-3-ones with 2,3-Diaminopyridine and its Derivatives

  • Sacmacl, Mustafa;Bolukbasl, Hilal;Sahin, Ertan
    • Bulletin of the Korean Chemical Society
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    • 제33권1호
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    • pp.90-94
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    • 2012
  • The furan-2-ylidene acetates (3a-d), obtained from the furan-2,3-diones (1a-b) and methyl/ethyl (triphenylphosphoranylidene)-acetates (2a-b), were converted via the Michael type reactions with 2,3-diaminopyridine and its derivatives (4a-c) into the corresponding pyrrol-2-ylidene-acetates (5a-j) in moderate yields (45-94%). Structures of these compounds were determined by the IR, NMR, elemental analysis, and X-ray diffraction method.

Embargo Nature of CuO-PANI Composite Against Corrosion of Mild Steel in Low pH Medium

  • Selvaraj, P. Kamatchi;Sivakumar, S.;Selvaraj, S.
    • Journal of Electrochemical Science and Technology
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    • 제10권2호
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    • pp.139-147
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    • 2019
  • Incorporation of CuO nanoparticles during the polymerization of aniline in the presence of ammonium peroxydisulphate as an oxidizing agent and sodium salt of dodecylbenzene sulphonic acid as dopant as well as surfactant yielded water soluble CuO-PANI composite. Comparison of recorded spectra like FTIR, XRD and SEM with reported one confirm the formation of the composite. Analysis by gravimetric method exposes that the synthesized composite is having resistivity against corrosion, with slight variation in efficiency on extending the time duration up to eight hours in strong acidic condition. OCP measurement, potentiodynamic polarization and EIS studies also confirms the suppression ability of composite against corrosion. Riskless working environment could be provided by the synthesized composite during industrial cleaning process.