• Title/Summary/Keyword: GEN2

Search Result 863, Processing Time 0.04 seconds

Adaptive Slot-Count Selection Algorithm based on Tag Replies in EPCglobal Gen-2 RFID System

  • Lim, In-Taek
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2011.10a
    • /
    • pp.653-655
    • /
    • 2011
  • EPCglobal proposed a Q-algorithm, which is used for selecting a slot-count in the next query round. However, it is impossible to allocate an optimized slot-count because the original Q-algorithm did not define an optimized weight C value. In this paper, we propose an adaptive Q-algorithm, in which we differentiate the weight values with respect to collision and empty slots. The weight values are defined with the identification time as well as the collision probability.

  • PDF

A Study on the Organization of Ryu Gen in at Aai Toku Ji temple in Japan. (일본 대덕사의 용원완정원의 조직성에 관한 연구)

  • 안계복
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.24 no.3
    • /
    • pp.5-13
    • /
    • 1996
  • This study is about to prove one factor among many ones that contribute to the formation of the Japanese Garden's pattren. It is believed by this study that distinguished Japanese Garden's pattren are made possible by an organized ability of the japaneses traditional landscape artists who had ability to develope a diversified forms of applications within the organized framework. To verify this assumption, the study has chosen Ryu Gen In, temple garden that is considered to determine the pattren of Japanese Garden best with a new concept ; Organization. The results of this analysis show as follows : 1. Ryu Gen In, consists of a series of building and five-small gardens, is largely organized by the union of two geometric formations : concave and convex. Each garden as a sub-organization is further organixed with a series of tree-branch typed structure. 2. The five-small gardens are formed jinto a whole system by connecting each one with floor. This connection makes a timely organization. 3. Each small garden is further organized alloted roles, namely, depends upon whether they play a major or minor role. 4. It is believed that sands and moss play a cotrolling role to conbine the elements into one within each unit of small garden. 5. It is found that figured sands, moss, sands and moss, or shrubs are used as means of organization to connect the small group elements within each small gardens. 6. It is considered that buildings and mud-walls are used as means of separation between Ryu Gen In and an outer world, and betwen small gardens.

  • PDF

cDNA Microarray Analysis of Transcriptional Response to Hyperin in Human Gastric Cancer Cells

  • Jeoung, Dooil;Kim, Jae-Hwan;Lee, Youn-Hyung;Myungin Baek;Lee, Seongeun;Baek, Nam-In;Kim, Hae-Yeong
    • Journal of Microbiology and Biotechnology
    • /
    • v.12 no.4
    • /
    • pp.664-668
    • /
    • 2002
  • Antioxidants either scavenge superoxide and free radicals or stimulate the detoxification mechanisms within cells, resulting in increased detoxification of free radicals formation. Hyperin, isolated from the stem of Uncaria rhynchophylla, prevented oxygen radical formation and inhibited lipid oxidation. The effective concentrations were 31.3 $\mu$M for a radical scavenging assay and 2.2 $\mu$M for a microsome assay. cDNA microarray analysis to determine which genes were modulated by hyperin found that 50 genes were upregulated and 37 genes were downregulated in SNU-668 human gastric cancer cells. Among these genes, thirteen genes that were significantly affected by hyperin were verified by RT-PCR for their effect of genetic reprogramming.

Copepods (Crustacea) Associated with Marine Invertebrates from New Caledonia (뉴칼레도니아의 해산 무척추동물에 공생하는 요각류(갑각강))

  • Kim, Il-Hoi
    • Animal Systematics, Evolution and Diversity
    • /
    • no.spc4
    • /
    • pp.1-167
    • /
    • 2003
  • Copepods associated with marine invertebrates are recorded from New Caledonia. Included are three new genera and 30 new species which are distributed in the poecilostomatoid and siphonostomatoid genera Anchimolgus (5 new species), Jamescookina (2), Odontomologus (2), Schedomolgus (3), and Scyphuliger (5) in the Anchimolgidae; Pterioidicola n. gen. (1) in the Lichomolgidae; Critomolgus (3), Doridicola (1), Paramolgus (1), and Pachysericola n. gen. (1) in the Rhynchomolgidae; Ruhtra n. gen. (1) in an uncertain family; and Asteropontius (5) in the Asterocheridae. Copepods new to New Caledonia and new host records are also included. Lists of 251 species of copepods known hitherto from New Caledonia and their 163 species of invertebrate hosts are provided, as well.

Efficient Development of Stable Recombinant Chinese Hamster Ovary (rCHO) Cell Lines to Produce Antibodies by Using Dimethyl Sulfoxide (DMSO) in Electroporation

  • Byun, Juyoung;Yoon, Sena;Jeong, Yunji;Oh, Uitaek;Cho, Sujin;Park, Jeongsoo;Jeong, Yongsu;Baek, Kwanghee;Yoon, Jaeseung
    • Journal of Microbiology and Biotechnology
    • /
    • v.29 no.1
    • /
    • pp.55-58
    • /
    • 2019
  • Development of stable rCHO cell lines is still time consuming and labor intensive, although it is a critical step in the commercial development of recombinant antibodies. The current work demonstrates, for the first time, that electroporation of CHO cells with DMSO can enhance stable expression of recombinant antibodies in rCHO cells. Electroporation with DMSO resulted in an average 3.7-fold and 2.8-fold increases in expression levels of aflibercept and pembrolizumab, respectively, in pools of stable rCHO cells. It also resulted in an average of 2.2-fold and 2.6-fold increases in the expression of aflibercept and pembrolizumab, respectively, in single-cell derived rCHO clones. Simple batch cultures of rCHO cell clones with the highest expression produced 1.0 g/l for aflibercept and 1.4 g/l for pembrolizumab without a time-consuming gene amplification process. Electroporation with DMSO also shortened the development of rCHO cell lines to 2-3 months, allowing rapid establishment of stable rCHO cell lines with a desirable expression level antibodies.