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Fermentative Production of White Pepper Using Indigenous Bacterial Isolates

  • Thankamani Vaidyanatha Lyer;Giridhar Raghavan Nair
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.9 no.6
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    • pp.435-439
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    • 2004
  • Three Bacillus strains were isolated from soil samples. Morphological and physiologi­cal characterization indicated that the isolated strains were B. mycoides, B. licheniformis and B. brevis. White pepper was produced from black pepper by the fermentative method using the isolates in shake flaks as well as in a large-scale fermenter. Volatile oil and piperine contents of the product were $3.2\%$ (v/w) and $4\%$ (v/w) respectively. The moisture content was $15\%$. The mi­crobial contamination was less than 10 per 100 g. The product also exhibited excellent storage stability.

Full-Color AMOLED with RGBW Pixel Pattern

  • Amold, A.D.;Hatwar, T.K.;Hettel, M.V.;Kane, P.J.;Miller, M.E.;Murdoch, M.J.;Spindler, J.P.;Slyke, S.A. Van;Mameno, K.;Nishikawa, R.;Omura, T.;Matsumoto, S.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.808-811
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    • 2004
  • A full-color AMOLED display with an RGBW color filter pattern has been fabricated. Displays with this format require about $^1/_2$ the power of analogous RGB displays. RGBW and RGB 2.16inch diagonal displays with average power consumptions of 180 mW and 340 mW, respectively, are demonstrated for a set of standard digital still camera images at a luminance of 100 cd/$m^2$. In both cases, a white-emitting AMOLED is used as the light source. The higher efficiency of the RGBW format results because a large fraction of a typical image can be represented as white, and the white sub-pixel in an RGBW AMOLED display is highly efficient because of the absence of any color filter. RGBW and RGB AMOLED displays have the same color gamut and, aside from the power consumption difference, are indistinguishable.

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Next Generation Technology to Minimize Ecotoxicity and to Develop the Sustainable Environment: White Biotechnology

  • Sang, Byoung-In;Ryu, Jae-Chun
    • Molecular & Cellular Toxicology
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    • v.1 no.3
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    • pp.143-148
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    • 2005
  • This review aims to show that industrial sustainable chemistry, minimizing or reducing the ecological impacts by the chemicals, is not an emerging trend, but is already a reality through the application of 'White Biotechnology' such as 'green' chemistry and engineering expertise. A large number of current industrial case studies are presented, as well as new developments from the chemical industry. The case studies cover new chemistry, new process design and new equipment. By articulating the requirements for industrial application of sustainable chemistry, this review also seeks to bridge any existing gap between academia and industry regarding the R & D and engineering challenges needed to ensure green chemistry research enables a more sustainable future chemical industry considering eco-toxicological impacts.

A Case of Lymphoma in a Holstein Cattle (젖소에서 발생된 림프종의 1증례)

  • 곽수동;김종섭;김순복;노규진;고필옥
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.289-292
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    • 2000
  • A Holstein cattle with third pregnancy was found to have clinical emergency findings of anxiety, dyspnea and recumbency at just before parturition. So Cesarean section and observation of internal organs were taken. Macroscopic examination showed enlargement of th lymph nodes and spleen, and ascites. A large tumor mass with solid and white to gray-white and focal hemorrhage, 55$\times$120cm in dimension and weighing 25.5kg was found in pelivc cavity. For conventional light microscopy, tissue samples were fixed in 10% neutral formalin solution, and then paraffin embedding, sectining and H-E staining were performed. In microscopic findings, tumor tissue, lymph node and spleeen were composed of mainly lymphoid tumor cells and the number of white blood cells in peripheral blood were increased 10-fold more than in normal. We concluded this tumor was bovine lymphoma.

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Relationship Between Bulk Density and Root Weight in White Ginseng (백삼의 심적밀도와 근중과의 관계)

  • Park, Hoon;Kim, Young-Hee;Yang, Cha-Bum
    • Journal of Ginseng Research
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    • v.17 no.3
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    • pp.224-227
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    • 1993
  • Weight (g/root) and bulk density (g/$cm^3$) of tap root in 15-root-grade of 4-year-old white ginseng were investigated by specific gravity and weight-volume method. Bulk density measured by specific gravity ranged from 0.8 to 1.2g/$cm^3$ with almost normal distribution in frequency (number 1 of roots). Bulk density measured by volume-weight method had significant correlation with root weight. The percentage of high bulk density root (above 1.0) showed significant positive correlation with mean root weight or mean bulk density of root weight, indicating that the growth conditions for large root provide the better compactnes of root tissue.

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Du Boisian Critique of American Exceptionalism and Its Limitations: From The Souls of Black Folk (1903) to Dusk of Dawn (1940)

  • An, Jee Hyun
    • Journal of English Language & Literature
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    • v.57 no.3
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    • pp.391-411
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    • 2011
  • This paper examines Du Boisian critique of American exceptionalism through a close textual analysis of his writings from early essays to later works. As an attempt to respond to the persistent grip American exceptionalism has on both the academia and the intellectual world at large, this paper tries to fill in the gaps within the discourse of American exceptionalism by exploring the works of one of the most towering American intellectual figures, and suggests that the discourse of American exceptionalism has remained within the purview of white scholars. Although at times inconsistent and contradictory, Du Bois's trenchant critique of American civilization and Western imperialism deconstructs the original ideals of America, creating more than a fissure in the ideology/hegemony/state fantasy of American exceptionalism. I argue that Du Boisian critique of American exceptionalism shows its violent marginalization and racialization based on white supremacy. Du Boisian critique should be a cautionary tale for those scholars who talk of "reform" or "replenishment" or even who occlude the possibility that American exceptionalism has not always functioned as a "state fantasy" by assuming its absolute blinding powers.

Comparative Study on Narrative of Animation 'Snow White' (애니메이션 백설공주의 내러티브 비교연구)

  • Sung, Re-A
    • The Journal of the Korea Contents Association
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    • v.7 no.1
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    • pp.199-206
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    • 2007
  • Animation becomes combination of narrative together visual(image) and hearing(sound) information rather than transmits only visual information. The image and sound of such animation are adjusted and controlled in the structure of narrative, and com to receive a meaning by its context. Even if animation begun by equal motive, the meaning which is different in each other with a director is generated. Although Snow White of the Walt Disney Co. and Fleischer's studio was manufactured by motive in fairy tale Snow White, it can look for a large difference in semantic generation of narrative. While Disney's Snow White re-interpreted the original meaning for a director's view of the world and re-made it by animation, Snow White of Fleischer constitutes a work from a meaning of the Snow White original newly completely, is not only weakening the union power of narrative, and but also reflecting the situation at that time.

Hot Water Extract of Wheat Bran Attenuates White Matter Injury in a Rat Model of Vascular Dementia

  • Lim, Sun Ha;Lee, Jongwon
    • Preventive Nutrition and Food Science
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    • v.19 no.3
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    • pp.145-155
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    • 2014
  • Vascular dementia is characterized by white matter lesions involving the demyelination and activation of astrocytes and microglia. In a previous study, we showed that the supernatant of a laboratory-scale, hot water extract of ground whole wheat (TALE) attenuated white matter injury and astrocytic activation in a rat model of bilateral common carotid artery occlusion (BCCAO). In the present study, we made several modifications to the hot water extraction process to remove starch and enable large-scale production. We used wheat bran (WB), which contains less starch, instead of ground whole wheat. In addition, we removed starch granules with a decanter before hot water extraction. The final product, wheat bran extract (WBE), contained 2.42% arabinose, a surrogate marker of arabinoxylan, which is an active constituent of WBE. Supplementation of the rat model of BCCAO with WBE (400 mg/kg/day) for 33 days attenuated white matter injury, which was assessed by Luxol Fast Blue staining, in the corpus callosum (cc) and optic tract (opt) regions. Attenuation of white matter injury in the opt region was accompanied by improvement of the pupillary light reflex. Immunochemical staining revealed that supplementation with WBE reduced astrocytic activation in the cc and opt regions and reduced microglial activation in the opt region. These findings indicate that supplementation with WBE is effective at attenuating white matter injury accompanied by the inhibition of astrocytic and microglial activation. Therefore, extracts from WB, a cheap by-product of wheat milling, can be developed as a nutraceutical to prevent vascular dementia, a disease for which there is no approved pharmaceutical treatment.

Comparison of stand structure and growth characteristics between Korean white pine plantation and oak-dominated natural deciduous forest by thinning treatment

  • Lee, Daesung;Choi, Jungkee
    • Journal of Ecology and Environment
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    • v.46 no.1
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    • pp.85-98
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    • 2022
  • Background: Korean white pine (Pinus koraiensis) is a major commercial species, and the importance of the oak trees (Quercus spp.) is increasing due to various factors such as environmental and ecological values. However, more information is required to clearly understand the growth characteristics of these species especially regarding thinning intensity. This study was performed to provide the basic information to develop the silvicultural guideline and field manual by analyzing tree and stand characteristics in line with thinning intensity in the Korean white pine plantation and oak-dominated natural deciduous forest. Results: Diameter at breast height (DBH) and volume changes by the thinning intensity in the Korean white pine plantation were significantly different from those in the oak-dominated deciduous natural forest. In particular, DBH distribution in the pine stand appeared that there were more large diameter trees as the thinning intensity was higher. DBH periodic annual increment (PAI) of the pine stand was higher as the thinning intensity was stronger and the growth period was shorter. This trend was similarly shown in the natural deciduous forest, but the amount of PAI was smaller than in pine stand. The volume PAI after thinning was not decreased over time. In each stand type, the PAI tended to be lower as stand density was higher. The volume PAI in the pine stand was significantly higher than that in the oak-dominated natural deciduous forest. Dead trees occurred the most in the unthinned plots of each stand type, and those were higher in the natural deciduous forest. Ingrowth trees were observed only in the natural deciduous forest, and its distribution was the lowest in unthinned plots; Korean white pine as ingrowth occurred the most frequently among many tree species. Conclusions: Different effects of thinning treatment on DBH and volume PAI, mortality, and ingrowth were observed for each stand. With respect to forest growth, Korean white pine plantation was superior to the oak-dominated natural deciduous forest. The results of this study offer fundamental information for the development of silvicultural guidelines for Korean white pine plantations and oak-dominated natural deciduous forests in Korea.

A Study on the Relationships between White Wares and Raw Materials Excavated at Goseong-ri Kiln Site in Chuncheon, Yeongseo Province, Gangwon-do (강원 영서지역 춘천 고성리 가마터 출토 백자 및 태토 원료의 상관관계 연구)

  • Lee, Byeong Hoon
    • Journal of Conservation Science
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    • v.36 no.3
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    • pp.152-161
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    • 2020
  • The purpose of this study was to compare the chemical properties of white soil and refined clay sediment, which are produced early in the refining process. The characteristics of the white wares made at the kiln site in Goseong-ri, Chuncheon were also examined. Three groups of materials were examined: white wares excavated from the white wares kiln, raw material from white soil collected from the surface, and a refined clay sediment group. There were also three analysis methods, which were a main components analysis, a trace components analysis, and a mineral analysis. The main components analysis found that the white wares clay was in the RO24.04~4.28 and the RO + R2O 0.30~0.31 mole areas, which were similar to the results for the refined clay sediment. However, the refining process used to produce better quality white wares meant that the large differences in the early white soil raw material appeared in the refined sediment. The mineral phase analysis showed that the crystals detected in the early white soil raw materials and refined clay sediment were almost identical. However, quartz and mullite mineral phases, which can occur above a certain temperature, were detected in the excavated white wares clay. Rare earth elements that were not affected by the pottery making process and the weathering of clay materials were found to have the same origin in all three groups.