• Title/Summary/Keyword: $4^{th}$ Generation

Search Result 479, Processing Time 0.027 seconds

Functionalization of Au surfaces with 4-(carboxymethyl)aniline and amine-terminated dendrimers for enhanced surface density of antibodies on immunosensor Au chips

  • Lee, Yongwoon;Ju, Youngwon;Kim, Joohoon
    • Analytical Science and Technology
    • /
    • v.30 no.1
    • /
    • pp.49-56
    • /
    • 2017
  • Here, we demonstrate surface functionalization of Au chips with 4-(carboxymethyl)aniline (CMA) and amine-terminated polyamidoamine (PAMAM) dendrimers for immobilization of antibodies on the Au surfaces. Use of the functionalization strategy led to high surface density of the immobilized antibodies on the Au chips. Specifically, we found that the functionalization of Au chips with CMA and amine-terminated $6^{th}$ generation PAMAM dendrimers allowed immobilization of immunoglobulin (IgG) antibodies with high surface density, which is 5 times higher than that obtained with Au surfaces functionalized with CMA and ethylenediamine.

GSP를 활용한 도형학습이 수학학업성취도 및 추론 능력에 미치는 영향

  • Kim, Jin-Ho;Kim, In-Kyung
    • East Asian mathematical journal
    • /
    • v.26 no.4
    • /
    • pp.463-485
    • /
    • 2010
  • The purpose of this paper is to investigate if the instruction using GSP to 4th graders for them to explore 'rectangles and making them' have an influence of understanding and retention of the knowledge, generation of the knowledge which is not dealt with during experimental treatment, and if they can reason based on what they have learned about it and about what has not been learned. According to the result from the data gained, learners in the experiment group show that they can retain, generate, reason better than ones in the comparison group.

High-Spread Interleaver based Interleave-Division Multiple Access Scheme for the 4G System

  • Chung, Yeon-Ho
    • Journal of Korea Multimedia Society
    • /
    • v.11 no.6
    • /
    • pp.828-834
    • /
    • 2008
  • This paper presents high-spread (HS) random interleavers based interleave-division multiple access (IDMA) scheme for the 4th generation mobile radio system. High-spread feature of a random interleaver offers high-spread characteristics to interleavers and thus produces extrinsic values with low correlation. As interleavers are key components for user separation in the IDMA, the HS interleavers with this feature are employed and analyzed in the IDMA for performance improvement. In addition, by replacing random interleavers with the HS interleavers in the IDMA, bandwidth efficiency is achieved by means of reducing the length of the repetition code. Performance evaluation shows that the proposed scheme of the IDMA with the HS interleavers provides superior BER performance and improved bandwidth efficiency.

  • PDF

FRENCH PROGRAM TOWARDS AN INNOVATIVE SODIUM COOLED FAST REACTOR

  • Martin, Ph.;Anzieu, P.;Rouault, J.;Serpantie, J.P.;Verwaerde, D.
    • Nuclear Engineering and Technology
    • /
    • v.39 no.4
    • /
    • pp.237-248
    • /
    • 2007
  • Sodium-cooled fast reactor is considered in France as a potential candidate for a prototype of 4th generation system to be built by 2020. A detailed working program has been launched recently to identify by 2012 the potential improvement tracks for later industrial development of these reactors. The goals for innovation are first identified: Progress of the safety with a special attention to severe accidents risk minimization and mitigation (defense in depth approach); Economic competitiveness of the system mainly by reducing the capital cost, the investment risks by enhancing in service inspection and repair capacities, and raising the availability; Sustainability with fissile material management while reducing the proliferation risk; capacity for long-lived waste transmutation.

A Study on the Design and Fabrication of a Dual-Ground and Broad-band Internal Antenna for 4th-Generation Mobile Communications (4세대 이동통신용 이중접지 내장형 광대역 안테나의 설계와 제작에 관한 연구)

  • Park, Jung-Ryul;Choi, Byoung-Ha;Kong, Jin-Woo;Yun, Hyun-Su;Kim, Gue-Chol
    • Journal of Advanced Navigation Technology
    • /
    • v.12 no.2
    • /
    • pp.100-108
    • /
    • 2008
  • In this paper, the dual-ground, high-gain and broad-band internal antenna has been designed and fabricated for 4th-generation mobile communication applications. The optimized antenna was fabricated using photolithography method. The antenna consist of the patches, antenna and system ground, and a probe. The patch and ground plane were separated by air. In order to prevent the demage due to radiator swaying, the foams(${\varepsilon}_r{\fallingdotseq}1.03$) were used to fix the patches and ground. The conductor for the radiators was 0.05 [mm] thick. The measured input return loss showed less than -10 [dB] at the broadband from 3499 to 4743 [MHz]. It's measured bandwidth was 1244 [MHz]. The radiation patterns measured at 3400, 3600, 3800, 4000 and 4200 [MHz] showed Omni-directional characteristics. The gain in the E-plane and H-plane was 4.7 ~ 6.1 and 2.1 ~ 4.3 [dBi], respectively.

  • PDF

Genetic Trend for Growth in a Closed Indian Herd of Landrace × Desi Crossbreds

  • Gaur, G.K.;Ahlawat, S.P.S.;Chhabra, A.K.;Paul, Satya
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.11 no.4
    • /
    • pp.363-367
    • /
    • 1998
  • This study has objectives of to estimate the genetic and phenotypic trend for growth in a closed herd of Landrace $\times$ desi crossbreds. The possibility of early selection of boars was also investigated in order to reduce generation interval and thus, to enhance response per year in selection programmes. The data originated from Livestock Production Research (Pigs), Indian Veterinary Research Institute (IVRI), Izatnagar (UP), India - a unit of All India Coordinated research Project on Pigs (AICRP on Pigs). Data consisted of 891 crossbred piglets, progeny of 29 boars. The piglets were born in 132 parities of 72 sows between 8 years from 1987 to 1994. Records on weight at birth, at 2 weeks interval upto 8 weeks of age (Wl, W2, ${\cdots}\;{\cdots}$ W8) and at 16th week (W16) were used in this investigation. BLLTP estimates of the sires were computed. Breeding value of each sire was estimated as twice of sire and sire group solutions. Phenotypic trend was estimated as regression of weight performance on year. Genetic trend was computed by estimating regression of breeding value of sires on time. Average body weights ranged from 0.92 kg (W1) to 18.95 kg (W16) and showed a continuous increase over age. Heritabilities of the weight at 4th and 6th week were medium (0.29 and 0.14). Rest of the weights were highly heritable. The product moment and rank, both correlations were high between breeding value for W6 and W16 (0.68 and 0.70). This shows that sire selection for W6 can be successfully implemented in order to achieve sufficient genetic improvement in growth. Phenotypic trend was positive at all ages. The phenotypic regression coefficient ranged from 0.02 kg at birth to 0.40 kg at 16 weeks. Genetic trend was also positive. The regression coefficients of average breeding value of sires on time showed a range of 1.471 kg (0.021 to 1.492 kg) for different weights. These coefficients were significant and higher than their corresponding phenotypic regression coefficient.

THE STUDY ON THE MICROLEAKAGE OF THE RESTORATION WITH SELF-ETCHING PRIMING/BONDING AGENT (Self-etching priming/bonding agent를 이용한 수복에서 microleakage에 관한 연구)

  • Yoo, Seung-Hoon;Kim, Jong-Soo
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.31 no.1
    • /
    • pp.26-33
    • /
    • 2004
  • Self-etching priming bonding system was recently developed in order to simplify the clinical skills & save chair time after continuous improvements on dentin bonding agents. To test the magnitude of microleakage of a new "self-etching priming bonding agent" using sound premolar 4th, 5th, 6th generation dentin bonding agent was applied. Measure the magnitude of infiltration to the gap of enamel-restoration interface and dentin-restoration interface. After bonding of composite resin to sample surfaces according to the manufactures direction and 500 times thermocycling on dwell time 30 second, and microleakage was measured by the ratio of the depth to the axial wall and the magnitude of infiltration. Afterward analyzed by ANOVA test. The result were as follows ; 1. Enamel groups showed lesser microleakage (Group I, II, III, IV) than dentin groups(Group V, VI, VII, VIII). (p<0.05) 2. There are no statical differences among the dentin groups, in enamel groups, group IV showed more microleakage than group I, II, III. (p<0.05). For a clinical acceptance, better enamel marginal adaptation is required.

  • PDF

Modulation of Immune Response Induced by Co-Administration of DNA Vaccine Encoding HBV Surface Antigen and HCV Envelope Antigen in BALB/c Mice

  • Nam, Sang-Hyun;Park, Jae-Hyun;Kang, Ju-Hye;Kang, Seog-Youn;Kim, Jae-Hong;Kim, So-Young;Ahn, Joon-Ik;Park, Ki-Sook;Chung, Hye-Joo
    • Archives of Pharmacal Research
    • /
    • v.29 no.11
    • /
    • pp.1042-1048
    • /
    • 2006
  • Plasmid DNA vaccines encoding the hepatitis B virus (HBV) surface and hepatitis C virus (HCV) envelope antigens, respectively, were constructed, and attempt were made to find the possibility of a divalent vaccine against HBV and HCV. The expression of each plasmid in Cos-1 cells was confirmed using immunocytochemistry. To measure the induced immune response by these plasmids in vivo, female BALB/c mice were immunized intramuscularly with $100\;{\mu}g$ of either both or just one of the plasmids. Anti-HBV and HCV-specific antibodies and related cytokines were evaluated to investigate the generation of both humoral and cellular immune responses. As a result, specific anti-HBV and anti-HCV serum antibodies from mice immunized with these plasmids were observed using immunoblot. The levels of IL-2 and RANTES showing a $Th_{1}$ immune response were significantly increased, but there was no change in the level of IL-4 ($Th_{1}$ immune response) in any of the immunized groups. Compared with each plasmid DNA vaccine, the combined vaccine elicited similar immune responses in both humoral and cell-mediated immunities. These results suggest that the combined DNA vaccine can induce not only comparable immunity experimentally without antigenic interference, but also humoral and $Th_{1}$ dominant cellular immune responses. Therefore, they could serve as candidates for a simultaneous bivalent vaccine against HBV and HCV infections.

A study of the impact of the married life of married women from the baby boom generation on the Happiness Index (베이비붐세대 기혼여성의 부부생활이 행복지수에 미치는 영향)

  • Park, Mee Ryeo;Kim, Young Soon
    • Journal of Family Resource Management and Policy Review
    • /
    • v.20 no.3
    • /
    • pp.115-129
    • /
    • 2016
  • This study is about the happiness of married women from the baby boom generation. The study aims to understand the impact of the married life of such women on the happiness index and to improve the happiness of married women by improving married life. The data for this study were drawn from the National Women and Family Panel Survey (4th year data) carried out by the Korean Women's Development Institute. The subjects for the final analysis totaled 885 married women from the baby boom generation, born between 1955 and 1963. Of these, 550 were married women in a dual income family, and 335 were married women in a husband-income family. IBM SPSS Statistic 21.0 was used. The findings from this study are as follows: First, the women's happiness index was higher in cases where the women had a more positive view of their husbands, the more often they were involved in leisure activities, the better their conflict resolution whenever there was a clash of opinions, and the more satisfied they were with the division of household labor. Second, in the case of dual income families, the women's happiness index was higher where they had a positive view of their husbands, their conflicts were better resolved, and the more satisfied they were with the division of household labor. Third, in the case of married women in a husband-income family, their happiness index rose the more positively they perceived their husbands, the more often they were involved in leisure activities together, and the more satisfied they were with the division of household labor.

A Design of MILENAGE Algorithm-based Mutual Authentication Protocol for The Protection of Initial Identifier in LTE (LTE 환경에서 초기 식별자를 보호하기 위한 MILENAGE 알고리즘 기반의 상호인증)

  • Yoo, Jae-hoe;Kim, Hyung-uk;Jung, Yong-hoon
    • Journal of Venture Innovation
    • /
    • v.2 no.1
    • /
    • pp.13-21
    • /
    • 2019
  • In LTE environment, which is 4th generation mobile communication systems, there is concern about private information exposure by transmitting initial identifier in plain text. This paper suggest mutual authentication protocol, which uses one-time password utilizing challenge-response and AES-based Milenage key generation algorithm, as solution for safe initial identification communication, preventing unique identification information leaking. Milenage key generation algorithm has been used in LTE Security protocol for generating Cipher key, Integrity key, Message Authentication Code. Performance analysis evaluates the suitability of LTE Security protocol and LTE network by comparing LTE Security protocol with proposed protocol about algorithm operation count and Latency.Thus, this paper figures out initial identification communication's weak points of currently used LTE security protocol and complements in accordance with traditional protocol. So, it can be applied for traditional LTE communication on account of providing additional confidentiality to initial identifier.