• Title/Summary/Keyword: effective mobility

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Passivation Effects of Excimer-Laser-Induced Fluorine using $SiO_{x}F_{y}$ Pad Layer on Electrical Characteristics and Stability of Poly-Si TFTs ($SiO_{x}F_{y}$/a-Si 구조에 엑시머 레이저 조사에 의해 불소화된 다결정 실리콘 박막 트랜지스터의 전기적 특성과 신뢰도 향상)

  • Kim, Cheon-Hong;Jeon, Jae-Hong;Yu, Jun-Seok;Han, Min-Gu
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.48 no.9
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    • pp.623-627
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    • 1999
  • We report a new in-situ fluorine passivation method without in implantation by employing excimer laser annealing of $SiO_{x}F_{y}$/a-Si structure and its effects on p-channel poly-Si TFTs. The proposed method doesn't require any additional annealing step and is a low temperature process because fluorine passivation is simultaneous with excimer-laser-induced crystallization. A in-situ fluorine passivation by the proposed method was verified form XPS analysis and conductivity measurement. From experimental results, it has been shown that the proposed method is effective to improve the electrical characteristics, specially field-effect mobility, and the electrical stability of p-channel poly-Si TFTs. The improvement id due to fluorine passivation, which reduces the trap state density and forms the strong Si-F bonds in poly-Si channel and $SiO_2/poly-Si$ interface. From these results, the high performance poly-Si TFTs canbe obtained by employing the excimer-laser-induced fluorine passivation method.

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Analysis of Use Intention of Mobile Cloud Service using a Convergence Technology Acceptance Model (융합기술수용모델을 이용한 모바일 클라우드 서비스 이용의도 분석)

  • Seo, Kwang-Kyu
    • Journal of Digital Convergence
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    • v.14 no.12
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    • pp.105-110
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    • 2016
  • As smart devices have proliferated and network speed and accessibility of mobile have accelerated, mobile cloud services that can do the same tasks by various devices are promoted. This paper explores the analysis of use intention of mobile cloud services and influencing factors. We develop and apply a convergence technology acceptance model which combines TAM, VAM and UTAUT. The proposed model verifies some hypotheses to aware the significant factors of use intention of mobile cloud services with TAM, VAM and UTAUT including additional mobile cloud service characteristics such as mobility, high availability, easy accessibility and scalability. Eventually, this research can not only help users gain insights into mobile cloud service use intention, but also help mobile cloud service providers to develop more effective mobile cloud service and their business strategy in the future.

Inhibitory Effects of Momordin I Derivatives on the Formation of Fos-Jun-AP-1 DNA Complex

  • Lee, Ju-hyung;Park, Chi-Hoon;Kim, Wook-Hwan;Hwang, Yun-Ha;Jeong, Kyung-chae;Yang, Chul-Hak
    • Bulletin of the Korean Chemical Society
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    • v.27 no.4
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    • pp.535-538
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    • 2006
  • In our previous studies, we have observed that curcumin and momordin I isolated from Ampelopsis radix inhibit the formation of Fos-Jun-activation protein-1 (AP-1) DNA complex. We have screened more effective compounds which have a 5-membered ring framework like momordin I and have modified disaccharide or carboxylic acid portions in momordin I. We synthesized momordin I derivatives according to the published method with slight modification. Synthetic momordin I derivatives showed remarkable inhibitory activities on Fos-Jun-AP-1 DNA complex formation results in in vitro assays. The $IC_{50}$ values of momordin I derivatives were about 4.0 $\mu$M in an electrophoretic mobility shift assay (EMSA). This value is about 125 times higher than that of curcumin and about 12 times higher than that for curcumin derivative C1, and moreover about 30 times higher than that for momordin I. We found momordin I derivatives (a) and (b) are the strongest inhibitory compound for Fos-Jun-AP-1 DNA complex formation.

Highway Drone Patrol Network Topology and Performance Analysis for Traffic Violation Enforcement (교통위반 단속을 위한 고속도로 드론 패트롤 네트워크의 토폴로지 및 성능분석)

  • Jo, Jun-Mo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.12 no.6
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    • pp.1043-1048
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    • 2017
  • Since year 2016, in Korea, the police department started to use drones to patrol violated vehicles on the highway area. They monitor vehicle drivers who use side ways on the highway during traffic congested hours of the season, drunken drivers, or violent drivers. They use the 'Spot Mobility' method which floats the drones for 30 minute period. However, this method is inefficient since it requires manually charging batteries, gathering data, and operate drones with many numbers of policeman. Therefore, in this paper, for the efficient patrol in this purpose, I have suggested an effectively manageable network system consists of many drones as the wireless network nodes and with small numbers of policeman in a wide highway area. To accomplish this, the two topologies of effective drone patrol network systems are designed and simulated in OPNET simulator for performance evaluation.

Development of Home Care Nursing Intervention Protocols for Spinal Cord Injury Patients Based on NIC (NIC에 근거한 척수손상환자의 가정간호 중재 프로토콜 개발)

  • Moon, Seong-Mi;Kim, Sun-Hee
    • Journal of Home Health Care Nursing
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    • v.8 no.1
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    • pp.25-37
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    • 2001
  • Spinal cord injury patients need rehabilitation after the acute stage. They should be cared for at home to decrease hospitalization. Home care nurses play an important role in making spinal cord injury patients who have physical. and psychosocial problems do their best. For effective care, home care nurses need standardized nursing intervention protocols for spinal cord injury patients, but they are rarely developed. Therefore, this study was conducted to develop home care nursing protocols, based on NIC, that are applicable to spinal cord injury patients at home. Forty home care nursing charts of spinal cord injury patients registered in a home care nursing agency from July 1st, 1994 to August 31st, 1999 in S city were analyzed. Fifteen home care nurses participated in this study as a user validity validation group, The results of this study are as follows. 1. Fifteen nursing diagnoses were classified through the frequency analysis of home care nursing charts and previous literature for 40 spinal cord injury patients: altered urinary elimination, constipation, high risk for impaired skin integrity, chronic pain, impaired skin integrity, impaired social interaction, knowledge deficit, bowel incontinence, high risk for injury, altered role performance, care giver role strain, impaired physical mobility, sexual dysfunction, dysreflexia, and ineffective breathing pattern. 2. Based on validation by experts and user validities, 93 nursing interventions which were above ICV(Index of Content Validity) .80 were chosen. 3. Nursing intervention protocols which showed above ICV .80 were developed.

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The Effects of Maitland Thoracic Mobilization Method on Cervical Alignment and Muscle Activity in Adult with Forward Head Posture

  • Kim, Dajeong;An, Hojung;Kim, Nyeonjun;Kim, Ayeon;Hong, Geurin;Kim, Soonhee
    • Journal of International Academy of Physical Therapy Research
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    • v.11 no.3
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    • pp.2119-2125
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    • 2020
  • Background: Adults with forward head posture (FHP) often suffer from thoracic hyperkyphosis and thoracic dysfunction, and including reduction of the craniovertebral angle (CV angle) and tightening of the superficial neck muscles. In order to treat thoracic dysfunction, interventions aimed at improving thoracic mobility are necessary. Objectives: To examine the effects of maitland manual mobilization therapy on the thoracic spine in adults with FHP. Design: Single-blind randomized controlled trial. Methods: Thirty adults with FHP who met the selection criteria were randomized to the thoracic multiple joint mobilization (TMJM; n=15) group and the thoracic general joint mobilization (TGJM; n=15) group. Joint mobilizations were performed for 23 minutes a day for 4 weeks continuously, two times per week. Outcome measures were ImageJ, BTS FREE EMG 1000, neck disability Index (NDI). Results: Although changes in the left sternocleidomastoid muscle activity and NDI scores over time between the two groups differed, other variables were noted only changes observed over time. Muscle activity in the right sternocleidomastoid increased again in the TGJM group post-intervention and 2 weeks after the end of the experiment, but changes in other variables were retained or improved, confirming the lasting effects of thoracic joint mobilization. Conclusion: Thoracic multiple joint mobilization may be recommended as a more effective intervention for adults with FHP.

Treatment of CRPS Type-I with Fire and Water Acupoints: A Case Report (오수혈의 화(火)혈과 수(水)혈의 운용을 통한 CRPS 제1형 환자 치험 1례)

  • Kim, Jong Han;Yoo, Je Hyuk;Park, Ji Min;Lee, Seung Min;Im, Se Hoon;Lee, Sang Hoon;Lee, Jae Dong;Nam, Dong Woo
    • Journal of Acupuncture Research
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    • v.30 no.3
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    • pp.165-171
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    • 2013
  • Objectives : The purpose of this study is to investigate the effect of acupuncture treatment on a patient suffering from CRPS Type 1. Methods : A 30-year-old female patient suffering from CRPS Type 1 with symptoms of intense burning pain, joint stiffness, restricted mobility, rapid hair and nail growth, allodynia, hyperalgesia and coldness of the right leg was treated with acupuncture on six acupuncture points on the leg from 13 July to 18 July of 2011. Improvement of the patient's symptoms was evaluated by Numerical Rating Scale(NRS), Digital Infrared Thermographic Image(DITI). Results : After 6 days of treatment, NRS score decreased significantly and the DITI results showed moderate improvement in temperature. Conclusions : The results suggest that acupuncture may be an effective in reducing the symptoms of CRPS. Further study is needed to evaluate the significancy of this report.

Impact Analysis of the Wage Subsidy Measures : Micro-effect Analysis on Long-term Job-seekers' Grant (임금보조금 사업의 효과분석 : 장기구직자 고용촉진 장려금에 대한 미시적 효과분석)

  • Chung, Yun-Tag;Kim, Won-Jung
    • Korean Journal of Social Welfare
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    • v.58 no.3
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    • pp.81-107
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    • 2006
  • This study begins with the assumption that the existing impact analysis studies did not present determinate criteria on which the studies were based. After we criticized the limitations of existing studies, we presented goal-based criteria and evaluated the long-term job-seekers subsidy as a case. This evaluation study is of micro-effect analysis which focuses on the effects on subsidized employees and employers. The Findings are: The subsidized employees were appropriately selected and can be taken as having difficulties in the labour market. The employment effect of the subsidy was significantly positive, though the wage effect was significantly negative. The effect of maintaining of skill measured by occupational mobility was positive, but not significant. The effect of increasing the quantity of employments in the subsidized companies were found significant. It could be proposed from the findings that the wage subsidy for the frail labour force is so effective as the subsidy for the employed labour force and could be boosted.

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The correlation between the physical power of golf players and the Titleist Performance Institute Level 1 test

  • Kim, Jaeeun;Yim, Jongeun;Do, Kwangsun
    • Physical Therapy Rehabilitation Science
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    • v.7 no.1
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    • pp.13-17
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    • 2018
  • Objective: This was a correlation study for predicting the power to improve the distance of golf players and developing an effective power program. Design: Cross-sectional study. Methods: The subjects of this study were 24 healthy males and females in their 20s and 30s who were golf athletes living in Seoul and Gyeonggi-do. In the Titleist Performance Institute (TPI) Level 1 test, the twelve swing characteristics include components of stability, mobility, body conditioning ability, and balance. The power test consisted of a vertical jump (VJ) in order to examine the power of the lower body, the seated chest pass (SCP) was used to examine upper body power, and the sit up and throw (SUAT) was used to examine the power of the upper body and core for the TPI Level 2 test. Results: The results of this study showed that the 90/90 was correlated with VJ, SUAT, and SCP scores (p<0.05). Single leg stance was correlated with VJ, SUAT, over head deep squat, and bridge with leg extension were correlated with VJ (p<0.05). The toe touch was correlated with SUAT results (p<0.05). Conclusions: The results of this study showed that the TPI Level 1 test and power test were correlated with the performance of the golf players. Future studies have shown that fitness program development and further research are needed.

Review of Recent Smog Chamber Studies for Secondary Organic Aerosol (스모그 챔버를 이용한 이차 초미세유기먼지의 최근 연구 동향)

  • Lim, Yong Bin;Lee, Seung-Bok;Kim, Hwajin;Kim, Jin Young;Bae, Gwi-Nam
    • Journal of Korean Society for Atmospheric Environment
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    • v.32 no.2
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    • pp.131-157
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    • 2016
  • A smog chamber has been an effective tool to study air quality, particularly secondary organic aerosol (SOA), which is typically formed by atmospheric oxidation of volatile organic compounds (VOCs). In controlled environments, smog chamber studies have validated atmospheric oxidation by identifying, quantifying and monitoring products with state-of-art instruments (e.g., aerosol mass spectrometer, scanning mobility particle sizer) and provided chemical insights of SOA formation by elucidating reaction mechanisms. This paper reviews types of smog chambers and the current state of smog chamber studies that have accomplished to find pathways of SOA formation, focusing on gas-particle partitioning of semivolatile products of VOC oxidation, heterogeneous reactions on aerosol surface, and aqueous chemistry in aerosol waters (e.g., cloud/fog droplets and wet aerosols). For future chamber studies, then, this paper discusses potential formation pathways of fine particles that East Asia countries (e.g., Korea and China) currently suffer from due to massive formation that gives rise to fatal health problems.