• Title/Summary/Keyword: whole characteristics

Search Result 3,406, Processing Time 0.024 seconds

A Methodology for Analysis and Simplification of Multi-level Dynamic Production Lot Sizing Problems (다단계 생산로트크기 결정문제의 분석과 단순화 방법)

  • 김갑환;박순오
    • Journal of the Korean Operations Research and Management Science Society
    • /
    • v.24 no.4
    • /
    • pp.13-26
    • /
    • 1999
  • When we try to design a production planning system for a manufacturing company, it is a time consuming task to analyze various planning activities and identify inter-relationship among a lot of decisions made for the production planning. Most of the research efforts have been concentrated to well-organized independent decision-making problems that may usually be identified only after analyzing the characteristics of the decision-making process as a whole. In this paper, a methodology is suggested to characterize the whole process of the production planning for a manufacturing company and reduce the complexity of decision-making problems. The methodology is based on an experience of developing a production planning software for an automobile component manufacturer in korea. First, it is explained how to identify and represent the dependency among various decision-making variables. And a methodology is proposed to analyze the identified dependency among decision variables and identify decision-making process. Lastly, a practical example is provided to illustrate the analysis procedure in this paper.

  • PDF

Studies on the Immobilized Whole-cell Enzyme of Arthrobacter simplamide Polymer

  • Kim, Doo-Ha;Lee, J.S.;Ryu, D.Y.
    • Proceedings of the Korean Society for Applied Microbiology Conference
    • /
    • 1978.10a
    • /
    • pp.207.2-207
    • /
    • 1978
  • Arthrobacter simplex (ATCC 6946) was cultured, induced and immobilized in acrylamide polymer. The characteristics of the immobilized whole-cell enayme were studied using hydrocortisone as the substrate. The enzyme activity was increased during the incubation of the gel particle in 0.5% peptone media. The ennzyme reaction kinetics of the Δ'-dehydrogenase (3-oxosteroid Δ'-oxydo reductase, E. C. 1.3.99.4) foliowed the Michaelis-Menten type. Km and Vm values were different significantly after immobilization of the cell. The optimum pH and temperature were changed, too. Nitrogen sources such as casitone, peptone or tryptone were good media for the enzyme reaction. And there was no need to add cofactors of the enzyme in the pre-sence of energy sources used in the test. The effect of metal ions on the enzyme activity was insignificant. Organic solvents were used increase the substrate concentration and there was no optimum solvent concentration depending on the substrate concentration.

  • PDF

Optimization of Preparation Conditions and Analysis of Food Components for Chicken Head Soup Base (닭머리 육수 제조 조건의 최적화 및 성분 분석)

  • Choi, Sung-Eun
    • Journal of the Korean Society of Food Culture
    • /
    • v.26 no.5
    • /
    • pp.468-477
    • /
    • 2011
  • Optimum preparation conditions for chicken head soup base were determined in terms of the effects of amount of chicken head and cooking time using response surface methodology based on sensory properties. Sensory properties that were evaluated were yellowness, turbidity, bloody, chicken-brothy, organ meat-like, and fat-like flavor. All values of sensory characteristics increased remarkably with an increase in the amount of chicken head and cooking time. The optimum amount of chicken head and cooking time were determined to be 1800 g and 150 minutes, respectively. Chicken head soup base had less fat, free amino acids, nucleotides, and its derivatives, but had significantly more cholesterol, sodium, and iron than whole chicken soup base. In flavor compound analysis, the amount of hexanal of the chicken head soup base, which is related to fat rancidity flavor, was 11-fold higher than that of the whole chicken soup base.

Comparison of DNase Activities from Infective Larvae vs Adult Worms of Haemonchus contortus (염전위충 감염자충과 성충의 DNase 활성 비교)

  • 곽동미
    • Journal of Veterinary Clinics
    • /
    • v.21 no.3
    • /
    • pp.248-252
    • /
    • 2004
  • DNase activity from infective larvae of the parasitic nematode Haemonchus contortus was characterized and compared to that from whole worm. DNase activity from infective larvae was detected throughout pHs 4-10, but high activity was detected under acidic conditions. The activity was not inhibited by 10 mM EDTA at pH 5.0, but was significantly inhibited at pH 7.0. The activity produced DNA, fragments with mixtures of 3'-hydroxyls (OH) and 3'-phosphates (P) at each pH with predominance of 3'-P. A unique DNase activity at 37 kDa was identified from infective larvae on zymograms. The 37 kDa DNase was detected only at pH 5.0, but not at pH 7.0, and this activity was not inhibited by EDTA at pH 5.0. These characteristics of the 37 kDa infective larval DNase resemble those of classic acidic DNases (e.g., DNase II). In contrast, 34, 36 and 38.5 kDa DNase activities were shown to be specific for whole worm. This result demonstrated that DNases in H contortus are regulated during development.

Architectural Planning of Out-Patient Clinic Department in Armed Forces Hospital (국군병원 외래진료부의 건축계획)

  • Kim, Jung-Nam;Ham, Wook;Park, Chang-Geun;Lee, Nak-Woon
    • Journal of Industrial Technology
    • /
    • v.24 no.B
    • /
    • pp.47-57
    • /
    • 2004
  • This study is aiming to obtain the pabulum of architectural planning about out-patient clinic department in armed force hospital with search. The discussion was about characteristic problems and differentiated planning characteristics of common general hospital, So the conclusion of research is as follows. In army medical facilities, Because of architectural standard of out-patient clinic department about scale of facilities and characteristic in each examination-part is unprepared, it may have to be readied. Out-patient clinic department was become plan to scale about whole 7~8% in hospital to SB hospital in 95 but was planed about 5% of whole scale from PS hospital in 97. When plan hospital, increase of equipment and increase of module size about bed for the convenience of patient or employees are judged for cause in hospital since 97 years than previous hospital in 95.

  • PDF

An Experimental Study on the Hysteretic Capacity Evaluation of the Shear-Strengthened RC Column with Carbon Fiber Sheet (탄소섬유쉬트로 전단보강한 RC 기둥의 이력성능평가에 관한 실험적 연구)

  • 이현호;구은숙
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 1999.04a
    • /
    • pp.750-755
    • /
    • 1999
  • When the RC frame structures subjected to the seismic load, brittle shear failure of vertical members induces brittle collapse of whole structures. Failure mechanism like this is not desirable. So shear strengthening method to avoid this failure mechanism is needed. Recently, strengthening method using continuous fiber sheet is studied and used widely which have high elastic and high strength characteristics. In this study, RC columns which is strengthened by carbon fiber sheet in the form of tape or whole sheet were tested under the cyclic load. The parameter of this test is the amount of strengthening. As the amount of strengthening increase, strength, ductility and energy capacity increase. The failure mode of test results are shear and bond-split failure.

  • PDF

A Study on the Floral Pattern in Baroque Textile (Baroque직물에 나타난 Floral 패턴의 텍스타일 디자인 연구)

  • Lee, Sun-Hwa;Kwon, Young-Suk
    • Fashion & Textile Research Journal
    • /
    • v.4 no.2
    • /
    • pp.117-127
    • /
    • 2002
  • Patterns presented at baroque were mostly floral pattern. Abstract anonymous flower, tulip, Acandus leaf, pomegranate were blended with one another and had a distinct leaning toward continuation and repetition. Components of design could be classified into flower and leaf, flower and fruit, flower and circumferential ornament, bunch of flowers, flower and pot, flower and geometry, and flower and animal. Floral patterns in this era were mostly fullness type being large, simple, and having more formalized motive and were fronted with unit type and vine shape. Unit type shows reflection of baroque style which aims to present absolute unification rather than freedom, which was inherent property of baroque style, by using symmetric pattern. Vine type were unfolded with C type curved line which was main characteristics of that time and showed flowage as a whole and pliable beauty. Floral pattern was filled the whole surface of fabric, thus background of fabric can not be discerned. So, it showed extreme decorative tendency and lavishness.

A study on the whole cell immobilized glucose oxidase from Aspergillus niger

  • Choe, I.S.;Roh, J.K.;Han, M.H.
    • Proceedings of the Korean Society for Applied Microbiology Conference
    • /
    • 1979.10a
    • /
    • pp.245.2-246
    • /
    • 1979
  • Heat treated whole cell of Aspergillus niger containing glucose oxidase-catalase system was entrapped in gelatin matrix crosslinked by glutaral-dehyde. The reaction characteristics of immobilized enzyme was studied in a fludized reactor. Heat treatment enhanced the stability and improved the properties of micellium for the immobilized process. The immobilized enzyme system showed the maximum activity at $35^{\circ}C$ and at pH 5.5. The optimum substrate concentration was 0.04M glucose. The activity of immobilized glucose oxidase was in proportion to the concentration of dissolved oxygen in reaction mixture as other reaction conditions were fixed. It was also demonstrated that the limiting factor for the activity of the immobilized glucose oxidase was the oxygen diffusion resistance which increases proportionally to the glucose concentration.

  • PDF

Pharmacognostical Studies on the Aconitum species from Korea(1) -On the Aconitum triphyllum $N_{AKAI}$- (한국산(韓國産) 초오속(草烏屬) 식물(植物)의 생약학적(生藥學的) 연구(硏究)(제1보)(第1報) -Aconitum triphyllum $N_{AKAI}$에 관해서-)

  • Young, Han-Suk;Park, Jong-Hee
    • Korean Journal of Pharmacognosy
    • /
    • v.18 no.1
    • /
    • pp.26-33
    • /
    • 1987
  • Aconites distribute widely in northern hemispere of the earth reaching to arctic zone from warm and temperate one. Hitherto, these tuberous roots, 'Cho O', have been known to be famous plant poisons and essential important drugs possessing many remedial effects in each region of the world, especially in Korea and China. In Korea, although these plants grow widely in whole districts, their classifications are quite obscure. Especially, Aconitum triphyllum $N_{AKAI}$ is distributed whole districts. To clarify the botanical origin of 'Cho O', we studied on the anatomical characteristics of Aconitum triphyllum $N_{AKAI}$ growing wild in Korea. As a result, the environmental varieties of A. triphyllum $N_{AKAI}$ were recognized.

  • PDF

DRYING CHARACTERISTICS OF RANGOLA GRASS

  • Lu, Fu-ming;Kung, Hsiang-chin
    • Proceedings of the Korean Society for Agricultural Machinery Conference
    • /
    • 1996.06c
    • /
    • pp.886-895
    • /
    • 1996
  • To fit the desorption isotherm and adsorption isotherm for Pangola grass, the modified Henderson model, Chung-Pfost model, modified Halsey model, and modified Oswin model were used to fit the experimental EMC /ERH data. A step-by -step ERH measuring technique was used in this study. The ERH data were collected at three temperature levels of 5 $^{\circ}C$, $25^{\circ}C$ and 5$0^{\circ}C$ for Pangola grass whole plant, stem , and foliage. The modified Halsey model has the best fit for both desorption isotherm and adsorption isotherm of Pangola grass whole plant as compared with other models.

  • PDF