• Title/Summary/Keyword: Replicate

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An Error Detection and Repair on DNA Duplicate Structure (DNA 이중나선구조에서의 오류 검출 및 복구)

  • Kim, Soke-Hwan;Hur, Chang-Wu
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.11
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    • pp.2500-2504
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    • 2011
  • Living organisms are composed of cells that can replicate themselves through growth, division packed with tons capacity. On DNA mutations, ie mutations in the offspring's survival and reproduction can be held against you, and packed with tons ambivalence that could benefit. In this study, the DNA double helix is used as a template for replication, we first separated into single strands of the double helix must be opened Combining the double helix portion of the location of errors in the bond provides a way to find and repair.

QFT application on force controller design for aircraft control surface load simulator (항공기 조종면 부하재현 구동장치의 force control)

  • 남윤수;이진영;이기두
    • 제어로봇시스템학회:학술대회논문집
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    • 1997.10a
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    • pp.1684-1687
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    • 1997
  • A dynamic load simulator which can reproduce on-ground the hinge moment of aircraft control surface is and essential rig for the loaded performance test of aircraft test of aircraft acutation system. The hinge moment varies wide in the aricraft flight enveloped depending on specific flight condition and maneuvering status. To replicate the wide spectrum of this hinge moment variation within some accuracy bounds, a force controller is designed based on the Quantiative Feedback Theory (AFT). Through the analysis on hinge moment dynamics, a design specification for the force controller is suggested. The efficacy of QFT force controller is verivied by simulation, in which combined aricraft dynamics/flight control law and hydraulic actuation system dynamics of aircraft control surface are considered.

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A Three-Degree-of-Freedom Anthropomorphic Oculomotor Simulator

  • Bang Young-Bong;Paik Jamie K.;Shin Bu-Hyun;Lee Choong-Kil
    • International Journal of Control, Automation, and Systems
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    • v.4 no.2
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    • pp.227-235
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    • 2006
  • For a sophisticated humanoid that explores and learns its environment and interacts with humans, anthropomorphic physical behavior is much desired. The human vision system orients each eye with three-degree-of-freedom (3-DOF) in the directions of horizontal, vertical and torsional axes. Thus, in order to accurately replicate human vision system, it is imperative to have a simulator with 3-DOF end-effector. We present a 3-DOF anthropomorphic oculomotor system that reproduces realistic human eye movements for human-sized humanoid applications. The parallel link architecture of the oculomotor system is sized and designed to match the performance capabilities of the human vision. In this paper, a biologically-inspired mechanical design and the structural kinematics of the prototype are described in detail. The motility of the prototype in each axis of rotation was replicated through computer simulation, while performance tests comparable to human eye movements were recorded.

Inclusive Innovation in India: Contemporary Landscape

  • Krishna, Venni V
    • Asian Journal of Innovation and Policy
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    • v.6 no.1
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    • pp.1-22
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    • 2017
  • The essence of inclusive innovation is to serve poor, marginalized and underprivileged sections of society to improve their livelihoods and enable them to climb up the socio-economic ladder. In this article, we explore the contemporary Indian landscape. There is a diversity of institutions and institutional approaches, multiple methodologies and goals in promoting inclusive innovations in this landscape. There are grassroots innovation institutions. All these institutions and groups have demonstrated how to improve the living conditions of poor people and enhance their income. They have developed different methodologies of inclusive innovation to intervene, build capacities and capabilities of poor people towards bridging informal and formal sectors of economy. Indian landscape can now boast of some successful models and a "social laboratory" for inclusive innovation. The challenge, however, remains to replicate and multiply these models to impact other sectors of Indian informal economy.

Evolving Business Models to Support the Growth of Technology-based Start-up Firms

  • Parry, Malcolm
    • World Technopolis Review
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    • v.5 no.2
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    • pp.86-97
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    • 2016
  • There is both a commercial and social imperative for innovation-led economic development. The data on inventions shows the importance of cities in the role of creating this important foundation to innovation. The importance of new venture firms in the innovation process of taking inventions to market is widely recognised, and with this recognition the science parks and science cities are working to understand and replicate the social, business and technology environments which are most fertile for these companies. This paper reviews how those with an interest in this process have addressed this challenge with new business practices and planning activities. It draws particularly on the experiences of Tech City in London and the Surrey Research Park

Evaluation of the Effects of a Combination of Silicate Minerals in Duck Diets on Growth Performance and Litter Quality

  • Chung, Tae-Ho
    • Journal of Environmental Science International
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    • v.27 no.10
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    • pp.933-936
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    • 2018
  • An experiment was conducted to evaluate the efficacy of a mixture of bentonite and illite as feed additives on the growth performance and litter quality of 90 Pekin ducks. The ducks were individually weighed and randomly divided into two treatments (control and 1% combination of silicate minerals), with three replicate pens per treatment, and 15 ducks per pen. Growth performance was not significantly affected (p>0.05) by the combination of bentonite and illite, but a trend of increased growth performance was observed in the control groups. Total nitrogen content and pH in the litter decreased following supplementation with the combination of bentonite and illite (p<0.05) when compared with the control group. This data indicates that the dietary supplementation with the combination of bentonite and illite (1% level) has no positive effect on the growth performance and litter quality of Pekin ducks.

Depression Among Korean Women (한국여성의 우울증상 실태조사 연구)

  • 신경림
    • Journal of Korean Academy of Nursing
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    • v.31 no.3
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    • pp.391-400
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    • 2001
  • Purpose: The purpose of this study was to examine depression in order to identify and improve health care policies promoting health among Korean women. Method: There were 329 participants, all older than 18 years old, and staying in Kyungki-Do, city. The data was collected from July to September 1999. The instrument used for this study was the CES-D (Center for Epidemiologic Studies Depression Scale) to evaluate depression. The collected data was analyzed with frequency, percentage, t-test, ANOVA, $\chi$2-test and Multiple logistic Analysis. Result: The result of this study are as follows: 1. Among the participants, 90.6% had normal to mild depression and 9.4% had severe depression. 2. For general characteristics, there were significant difference in the degree of depression according to age(P=0.0001), and marital status(P=0.0001). As for health related characteristics, the depression scores were affected by health perception(P= 0.0001), menopause(P=0.0005), stress (P= 0.0001) and sexual activity(P=0.0001). 3. There was a significant relationship between marital status and stress. Conclusion: This study suggests that a replicate study is needed. The results are also is useful in developing various nursing intervention programs.

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A Cloud Point Extraction-Spectrofluorimetric Method for Determination of Thiamine in Urine

  • Tabrizi, Ahad Bavili
    • Bulletin of the Korean Chemical Society
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    • v.27 no.10
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    • pp.1604-1608
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    • 2006
  • A simple and efficient cloud point extraction-spectrofluorimetric method for the determination of thiamine in human urine is proposed. The procedure is based on the oxidation of thiamine with ferricyanide to form thiochrome, its extraction to Triton X-114 micelles and spectrofluorimetric determination. The variables affecting oxidation of thiamine, extraction and phase separation were studied and optimized. Under the experimental conditions used, the calibration graphs were linear over the range 2.5-1000 ng $mL^{-1}$. The limit of detection was 0.78 ng $mL^{-1}$ of thiamine and the relative standard deviation for 5 replicate determinations of thiamine at 400 ng $mL^{-1}$ concentration level was 2.42%. Average recoveries between 93-107% were obtained for spiked samples. The proposed method was applied to the determination of thiamine in human urine.

A Study on Escalation of Commitment Behavior in Software Projects : The Perspective of Cultural Differences (소프트웨어 개발 프로젝트에서 수행의 지속행위에 관한 연구 : 문화적 차이의 관점에서)

  • 김인재;심형섭;김종은
    • Journal of Information Technology Applications and Management
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    • v.11 no.2
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    • pp.1-14
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    • 2004
  • The level of sunk cost and risk-taking theory have been offered as one explanation for the escalation of commitment behavior. This Study attempted to replicate Keil's study in Korea. Keil examined the level of sunk cost associated with the risk propensity and risk perception of decision-makers, and these factors are assessed for cross-cultural robustness using matching laboratory experiments carried out in three countries. The level of sunk cost and the risk perception of decision-makers contributed significantly to their continuous willingness to their project. Moreover, the risk propensity of decision-makers was inversely related to risk perception, and this inverse relationship was significantly more weak in Korea than in Singapore. These results show that the sunk-cost effect exists across cultures, and that the risk-taking behaviors are partially mediated by cultural factors.

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Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Thallium after Solid-Liquid Extraction and Preconcentration with Use of 1,10-Phenanthroline onto Benzophenone

  • Taher, Mohammad Ali
    • Bulletin of the Korean Chemical Society
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    • v.24 no.8
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    • pp.1177-1180
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    • 2003
  • Thallium is quantitatively retained by 1,10-phenanthroline and tetraphenylborate onto benzophenone in the pH range 0-11 from a large volumes of aqueous solutions of various samples. After filtration, the solid mass consisting of thallium complex and benzophenone is dissolved with 5 mL of dimethylformamide and the metal was determined by flame atomic absorption spectrometric. About 0.4 ㎍ of thallium can be concentrated from 400 mL of aqueous sample, where its concentration is as low as 1.0 ng/mL. Eight replicate determinations of 8.0 ㎍/mL of thallium in final dimethylformamide solution gave a mean absorbance of 0.160 with a relative standard deviation of 1.7%. The sensitivity for 1% absorption was 0.22 ㎍/mL. The interference of a large number of anions and cations has been studied and the optimized conditions developed were utilized for the trace determination of thallium in various alloys and biological samples.