• Title/Summary/Keyword: Barrier Effect

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Effect of Binder Polymer on the Photolithographic Patterning of PDP Barrier Rib

  • Kim, Dong-Ju;Kim, Duck-Gon;Woo, Chang-Min;Ryu, Sueng-Min;Yang, Dong-Yol;Kim, Soon-Hak;Park, Lee-Soon
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1364-1367
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    • 2007
  • In this study, the effect of binder polymer on the photolithographic patterning of barrier ribs was studied from view point of polymer structure and barrier rib pattern.

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Investigation of the Driving Frequency Effect on the RF-Driven Atmospheric Pressure Micro Dielectric Barrier Discharges

  • Bae, Hyowon;Lee, Jung Yeol;Lee, Hae June
    • Applied Science and Convergence Technology
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    • v.26 no.4
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    • pp.74-78
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    • 2017
  • The discharge characteristics of the radio frequency (RF) surface dielectric barrier discharge have been simulated for the investigation of the ratio of the ion transit time to the RF period. From one-dimensional particle-in-cell (PIC) simulation for a planar dielectric barrier discharge (DBD), it was observed that the high-frequency driving voltage confines the ions in the plasma because of a shorter RF period than the ion transit time. For two-dimensional surface dielectric barrier discharges, a fluid simulation is performed to investigate the characteristics of RF discharges from 1 MHz to 40 MHz. The ratio of the peak density to the average density decreases with the increasing frequency, and the spatiotemporal discharge patterns change abruptly with the change in the ratio of ion transit time to the RF period.

The Modifying Effect of Switching Barriers in Customer Loyalties in Medical Services (의료서비스에서 고객충성도에 대한 전환장벽의 조절효과 분석)

  • Lee, Sun-Hee;Kim, Hyun-Mi;Chae, Yoo-Mi
    • Health Policy and Management
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    • v.17 no.3
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    • pp.68-86
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    • 2007
  • This study was performed to explore the effect of customer satisfaction and switching barriers on customer royalties in medical services. 900 households, 1% sample were randomly selected from K city located in Kangwon province. Interview survey was performed with structured questionnaire for the entire people, 923 persons who experienced medical service utilization during one year before survey on time, september, 2002. In comparison of switching barriers by sociodemographic characteristics, lower income group and lower educated group showed the higher level of recognition level on availability of changing the service provider significantly. In terms of economic loss as one of switching barriers, the group of over aged 61, the lower income group and the lower educated group felt higher than other groups. Also, the time loss of switching barrier was recognized in 41-60 aged group and employee in service industry highly. For the perceived risk factor as another switching barrier, the high educated group showed the higher recognition level in performance risk and felt higher social risk than other groups. In analysis of customer satisfaction and loyalty levels by switching barrier components, the lower level of availability of changing the service provider and the higher level of recognition for economic and time loss, they showed the higher satisfaction and loyalty levels. In final step, multiple regression analysis showed the positive relationship between customer satisfaction, switching barrier and customer loyalties. Besides, the moderating effect of switching barrier in relationship between customer satisfaction and loyalties was significant and this results suggests that the influence of customer satisfaction to customer loyalties might be weakened in high level of recognition for switching barrier. In conclusion, perceived risk of economic and time loss as switching barrier is an important factor and should be considered in planning of marketing strategy carefully in terms of defensive marketing.

Impact of Energy Relaxation of Channel Electrons on Drain-Induced Barrier Lowering in Nano-Scale Si-Based MOSFETs

  • Mao, Ling-Feng
    • ETRI Journal
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    • v.39 no.2
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    • pp.284-291
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    • 2017
  • Drain-induced barrier lowering (DIBL) is one of the main parameters employed to indicate the short-channel effect for nano metal-oxide semiconductor field-effect transistors (MOSFETs). We propose a new physical model of the DIBL effect under two-dimensional approximations based on the energy-conservation equation for channel electrons in FETs, which is different from the former field-penetration model. The DIBL is caused by lowering of the effective potential barrier height seen by the channel electrons because a lateral channel electric field results in an increase in the average kinetic energy of the channel electrons. The channel length, temperature, and doping concentration-dependent DIBL effects predicted by the proposed physical model agree well with the experimental data and simulation results reported in Nature and other journals.

Analysis of Energy Flow and Barrier Rib Height Effect using Ray-Optics Incorporated Three-dimensional PDP Cell Simulation

  • Chung, Woo-Joon;Jeong, Dong-Cheol;Whang, Ki-Woon;Park, Jae-Hyeung;Lee, Byoung-Ho
    • Journal of Information Display
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    • v.2 no.4
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    • pp.46-51
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    • 2001
  • Using ray-optics code incorporated with three-dimensional PDP cell simulation, we have analysed the energy flow in the PDP cell from the electric power input to the visible light output. Also, the visible light output profile and viewing angle distribution were obtained. We applied our code to the analysis of the barrier rib height effect on the visible light luminance and efficiency of the sustaining discharge. Although cells with higher barrier rib generate more VUV photons, less ratio of visible photons are emitted toward front panel due to the shadow effect. Thus, there exists optimal barrier rib height giving the highest visible luminance and efficiency. This kind of code can be a powerful tool in designing cell geometry.

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Evaluation of Capillary Barrier Effect of Multi-layer Cover System (다중 덮개시스템의 모세관 방벽 효과 평가)

  • Lee, Jeong-Hwan;Cho, Hyun-Jin;Cheong, Jae-Yeol;Jung, Haeryong;Yoon, Jeong Hyoun
    • Journal of Soil and Groundwater Environment
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    • v.21 no.1
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    • pp.1-5
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    • 2016
  • Capillary barriers, consisting of relatively fine-over-coarse materials, have been suggested as an alternative to traditional compacted soil covers. So, We were analysed to capillary barrier effect according to five cases of multi-layer cover systems. Water balance simulation was conducted with unsaturated flow model HELP to assess unsaturated hydraulic parameters such as hydraulic conductivity, climate affecting the performance of capillary barriers. Simulation were conducted for 5 Cases in the Ulsan area. Result of simulation indicated that three cases was formed unsaturated condition and capillary barrier effect.

A Study on the Effects of the Mobile Telecommunication Quality on Customer Satisfaction and Customer Loyalty. -Focus on Moderation effect of Switching Barrier- (이동통신품질이 고객만족과 고객충성도에 미치는 영향 - 전환장벽의 조절효과를 중심으로-)

  • Min, Byeong-Seo
    • Journal of Korean Society for Quality Management
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    • v.44 no.4
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    • pp.921-934
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    • 2016
  • Purpose: The purpose of this study was to propose useful suggestions by explore the effects of the Mobile Telecommunication service quality on customer satisfaction and Customer Loyalty (Focus on Moderation effect of switching barrier) in Korea Mobile Telecommunication industry. Methods: After reviewing the literature, the structural eqation modeling(SEM) conducted by LISREL 8.53 test the research model. The data was collected from subscriber of mobile telecommunication service by the questionare in Korea. Results: The results of SEM show that Mobile Telecommunication Service Quality have a positive effect on customer satisfaction, and customer satisfaction also have a positive effect on customer loyalty. And switching barrier have a moderation effect between customer satisfaction and customer loyalty. Conclusion: Mobile Telecommunication Service Quality is highly related to Customer Satisfation and Customer Loyalty, so Mobile Telecomunication Company should improve Service Quality especially price-related service quality and process/ human- related service quality. And the company need to get higher the positive Switching Barriers in order to improve Customer Loyalty.

Effect of Barrier Rib Height Variation on the Luminous Characteristics of AC PDP

  • Bae, Hyun-Sook;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.91-94
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    • 2003
  • We studied the effect of barrier rib height variation using ray-optics code incorporated with three-dimensional plasma simulation to analyze the effects of cell geometry for varying pressure conditions. The optimal barrier rib height decreased as the Xe partial pressure increased which resulted in due to the formation of local, strong sheath under high Xe partial pressure condition.

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The Effect of Nonverbal Communication on Trust, Switching Barrier and Repurchase Intention (서비스제공자의 비언어적 커뮤니케이션이 신뢰와 전환장벽 및 재구매의도에 미치는 영향)

  • Lee, Ok-Hee
    • Fashion & Textile Research Journal
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    • v.14 no.5
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    • pp.803-810
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    • 2012
  • This study investigates the effect of nonverbal communication on trust, switching barrier, and repurchase intention. Sample subjects used in this study were customers of a fashion shop in Sunchon. The questionnaires were conveniently sampled from July 2010 to August 2010. Questionnaire data from 335 customers of a national brand were analyzed through a reliability analysis, factor analysis, and multiple regression analysis. The results of this study are as follows. First, nonverbal communication by the service provider was divided into 3 types, physical appearance and paralanguage, postures and proxemics, and facial expressions. Second, it was found that physical appearance and paralanguage, postures and proxemics, facial expression of nonverbal communication had a significant impact on customer trust. Third, given the relationship between nonverbal communication and switching barrier, it was represented that the postures and proxemics and facial expressions (except physical appearance and paralanguage) had a significantly positive influence on the switching barrier. Forth, physical appearance/paralanguage, postures/proxemics, and facial expressions (nonverbal communication) had a positive influence on repurchase intention. Fifth, given the relationship between trust and repurchase intention as well as switching barrier and repurchase intention, it was represented that trust and switching barrier have a significantly positive influence upon repurchase intention. According to the results of this study, the more positive nonverbal communication by the service provider then the higher the customer repurchase intention as well as trust and switching barrier. Fifth, given the relationship between trust and repurchase intention as well as switching barrier and repurchase intention, it was represented that trust and switching barrier have a significantly positive influence upon repurchase intentions.

The Effect of Multi-lamellar Emulsion (MLE) on Skin Barrier Function: Can an Improve Permeability Barrier Provide a Solution for Itching due to Skin Barrier Malfunction\ulcorner

  • Youm, Jong-kyung;Kim, Yang-hee;Park, Byeong-deog;Jeong, Se-kyoo;Park, Eung-ho;Ahn, Sung-ku;Lee, Seung-hun
    • Proceedings of the SCSK Conference
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    • 2003.09a
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    • pp.765-779
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    • 2003
  • Physiological lipid mixtures comprised of cholesterol, ceramide and free fatty acid better maintain epidermal homeostasis and have been recently used for dermatoses induced by skin barrier damage, for example for atopic dermatitis and xerotic skin. Itching and dry atopic dermatitis of the skin may be related to altered skin barrier function. In a previous study, the use of multi-lamellar emulsion (MLE), which is a lipid mixtures containing cholesterol, pseudoceramide and free fatty acid, has been shown to accelerate the recovery of the epidermal permeability barrier. In this study, we assessed the efficacy of MLE compared with a currently used anti-itch moisturizer (AIM), the active ingredients of which are menthol and camphor, on barrier recovery after barrier disruption. To clarify the effect of MLE and AIM after acute barrier perturbation, we measured the relation between transepidermal water loss (TEWL) and the barrier recovery rate at 3, 6, 24, and 48 hours after tape stripping hairless mice and then observed changes in the stratum corneum (SC), including the intercellular lipid structure and secretion of lamellar bodies, by electron microscopy. MLE treated skin recover skin barrier function more rapidly, and AIM treated skin delayed barrier repair. Morphological changes in the epidermis, of MLE treated skin revealed well-conserved lipid multi-lamellar structures at 24 h after tape stripping, whereas AIM treated skin showed altered lamellar bilayers within the SC interstices at 48 h. In addition, MLE treated skin showed an increase in the number of LBs and in their secretions and a decrease in the number of SC layers versus AIM treated skin. These results suggest that MLE may accelerate the production of an epidermal permeability barrier in hairless mice by increasing the number and secretion of LB and improve the dryness and itch associated with an altered epidermal permeability barrier.

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