• Title/Summary/Keyword: Arizona

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Modeling and Simulation of Intelligent Hierarchical Flexible Manufacturing

  • Cho, Tae-Ho;Bernard P. Zeigler;Seo, Hee-Suk
    • Korea Information Processing Society Review
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    • v.11 no.1
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    • pp.8-19
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    • 2004

  • Many Researchers and practitioners have expressed the view that artificial intelligence(AI) may have significant application to solution of manufacturing problems. Expert systems have been developed for solving problem areas.(omitted)

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Urbanization and Quality of Stormwater Runoff: Remote Sensing Measurements of Land Cover in an Arid City

  • Kang, Min Jo;Mesev, Victor;Myint, Soe W.
    • Korean Journal of Remote Sensing
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    • v.30 no.3
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    • pp.399-415
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    • 2014

  • The intensity of stormwater runoff is particularly acute across cities located in arid climates. During flash floods loose sediment and pollutants are typically transported across sun-hardened surfaces contributing to widespread degradation of water quality. Rapid, dense urbanization exacerbates the problem by creating continuous areas of impervious surfaces, perforated only by a few green patches. Our work demonstrates how the latest techniques in remote sensing can be used to routinely measure urban land cover types, impervious cover, and vegetated areas. In addition, multiple regression models can then infer relationships between urban land use and land cover types with stormwater quality data, initially sampled at discrete monitoring sites, and then extrapolated annually across an arid city; in our case, the city of Phoenix in Arizona, USA. Results reveal that from 30 storm event samples, solids and heavy metal pollutants were found to be highly related with general impervious surfaces; in particular, with industrial and commercial land use types. Repercussions stemming from this work include support for public policies that advocate environmental sustainability and the more recent focus on urban livability. Also, advocacy for new urban construction and re-development that both steer away from vast unbroken impervious surfaces, in place of more fragmented landscapes that harmonize built and green spaces.

  • https://doi.org/10.7780/kjrs.2014.30.3.6 인용 PDF KSCI

A Study of Navajo Textiles in the Transitional Period (19세기후반 전환시대 Navajo 인디언직물의 고찰)

  • 정미실
    • Journal of the Korean Home Economics Association
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    • v.40 no.8
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    • pp.37-48
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    • 2002

  • The purpose of this study was to survey Navajo's textiles of the transitional period(1868-1890) and to examine appearance background of those textiles. The two study questions were central to the project. 1) What were characteristics of eye-dazzler and pictorial in the transitional period? 2) How developed was the American trader's role? To perform the purpose, literatures on this subject were surveyed, investigation of textiles in Arizona State Museum and Historical Museum of Arizona were accomplished. The results of this study were as follows: 1. Eye-dazzler is called because of their small, serrate triangle and diamond patterns in intense, contrasting colors. Eye-dazzler mostly used Germantown yam and wedge-weave technique. Germantown was a plied yam colored with synthetic dyes. Wedge-weave technique used optical illusions and an undulating technique to create an effect of motion and rhythmic symmetry. 2. The Americans began to intern Navajos at Bosque Redondo, New Mexico in 1863. During their stay at Bosque Redondo, the Navajo came into greater contact with Rio Grande blankets. The influence of designs of these becomes increasingly important in the eye-dazzler. 3. Pictorial materials included rich new sources the railroad provided and living environment of animals, plants, hogans, neighbors, deities that interested the Navajo. Also, sandpainting textiles were a pictorial. Three types of textiles utilized: yei, yeibichai, and sandpainting tapestry. 4. The arrival of the railroad caused many changes for the lives and textiles of the Navajos. The railroad brought a new client into the Navajo, and the Navajos attempted new textiles with design-inspiring fresh materials to adjust taste of the eastern purchasers.

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Molecular Cloning and Expression of Bacillus pasteurii Urease Gene in Escherichia coli (B. pasteurii Urease 유전인자의 E. coli의 복제와 발현)

  • Kim, Sang-Dal;John Spizizen
    • Microbiology and Biotechnology Letters
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    • v.13 no.3
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    • pp.297-302
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    • 1985

  • The 7.1 Mdal Xbaf fragment of Bacillus pasteurii ATCC 11859 containing gene for urease was inserted into the Xbal site of bifunctional plasmid pGR71, and its urease gene was cloned and expressed in E. coil RRI. But the cloned gene was not expressed in Bacillus subtilis BR151 in consequence of deletion of inserted DNA fragment. The recombinant plasmid thus formed was named pGU66. The restriction map of the plasmid pGU66 was determined, and the size of the plasmid was estimated to be 12.6 Mdal by double digestion of restriction enzymes of the plasmid. The urease of the cloned strain was accumulated in periplasmic space and very similiar to that of donor strains in their enzymatic properties.

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