• Journal of the Korean Institute of Telematics and Electronics A
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• v.30A no.9
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• pp.59-70
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• 1993

An efficient test method based on march test is presented to cover line leakage failures associated with bit and word lines or mega bit DRAM chips. A modified column march (Y-march) pattern is derived to improve fault coverage against the data retention failure. Time delay concept is introduced to develop a new column march test algorithm detecting various data retention failures. A built-in test circuit based on the column march pattern is designed and verified using logic simulation, confirming correct test operations.

• Bulletin of the Korean Chemical Society
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• v.10 no.1
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• pp.34-39
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• 1989

The relationship between the solute retention and physical parameters describing the interaction between the solute and mobile phase was investigated to predict the solute retention easily in RPLC. The retention data of monosubstituted benzenes were measured on the $\mu$-Bondapak C18 and phenyl columns with methanol-water systems. The linear relationship between dielectric increment($\epdilon'$) and retention data was observed. When the solute form hydrogen bonding with solvent molecules, the slope of the ln k' vs. $\epdilon'$ plot is changed as the compositions is varied. The quadric relationship between mixed solvent solubility parameter ($\delta$M) and retention data was observed.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.6
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• pp.195-206
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• 2022

The purpose of this paper is to examine how loyalty programs designed by retail stores affect customer retention. The present study is one of the few empirical studies finding the role of different loyalty programs that help to build customer retention. The study also seeks to explore the moderation role of customer perceived value between intrinsic motivation - customer retention and extrinsic motivation - customer retention. The researchers employed a quantitative research design to collect data from the 350 respondents who purchased goods from the retail chain/departmental stores in Bangladesh. The collected data are then analyzed using structural equation modeling. The result of their findings indicated that the size of the organizational reward has a positive effect on intrinsic and extrinsic motivation; further extrinsic motivation has a significant relation to customer retention. Surprisingly, no support was found for the positive impact of intrinsic motivation on customer retention. Customer perceived value (CPV) is critical as a moderator in building client retention, which improves the positive association between extrinsic motivation and customer retention. CPV, on the other hand, was found to mitigate the negative link between intrinsic motivation and client retention.

• Journal of Korean Public Health Nursing
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• v.27 no.1
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• pp.142-152
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• 2013

Purpose: This study was aimed to identify the relationships among job stress, nursing performance, and retention intention of clinical nurse. Methods: Data was collected at a hospitals located in Seoul, from October 19 to October 26 in 2010. Total subjects were 270. Data was analyzed by PASW 18.0 program. Results: Job stress of the subjects was 3.69(0.43). Nursing performance of the subjects was 3.69(0.45). Retention intention of the subjects was 3.21(0.78). Job stress and nursing performance were correlated positively (r=0.276, p<0.001). Nursing performance and retention intension were correlated positively (r=0.151, p=0.05). But job stress were correlated with nursing performance negatively (r=-0.127, p=0.05). Conclusion: According to increasing the nursing performance and decreasing the job stress, retention intension of clinical nurse is increased. We suggest a new study on mediation effect by nursing performance on retention intention and to predict factors on retention intension.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.39 no.4
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• pp.1-9
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• 2002

The distribution characteristics of data retention time for DRAM was studied in connection with the probability distribution of the cell parameters. Using the cell parameters and the transient characteristics of cell node voltage, data retention time was investigated. The activation energy for dielectric layer growth on cell capacitance, the recombination trap energy for leakage current in the junction depletion region, and the sensitivity characteristics of sense amplifier were used as the random variables to perform the Monte Carlo simulation, and the probability distributions of cell parameters and distribution characteristics of cumulative failure bit on data retention time in DRAM cells were calculated. we found that the sensitivity characteristics of sense amplifier strongly affected on the tail bit distribution of data retention time.

• Korean Journal of Occupational Health Nursing
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• v.33 no.1
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• pp.26-35
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• 2024

Purpose: This study aumed to identify the effects of job satisfaction, nursing organizational culture and social support on intention retention among general hospital nurses. Methods: The subjects were 254 nurses working in one general hospital. Data were collected from January 1 to 30, 2023. Data were analyzed by t-test, ANOVA, Pearson correlation, and multiple regression analysis using the SPSS/WIN 25.0 program. Results: (a) In this study, the mean value of job satisfaction was 3.07±0.43, relation-oriented culture was 3.45±0.51, hierarchy-oriented culture was 3.39±0.49, task-oriented culture was 3.35±0.48, innovation-oriented culture was 3.00±0.46, social support was 3.75±0.49, and intention retention was 4.98±1.39. (b) Intention retention had a positive correlation with job satisfaction (r=.41, p<.001), social support (r=.29, p<.001), innovation-oriented culture (r=.29, p<.001), relation-oriented culture (r=.20, p=.001), and hierarchy-oriented culture (r=.18, p=.002). (c) Factors that affect intention retention include job satisfaction (β=.41, p<.001), Working type (Non-shift) (β=.18, p=.001), Nursing job selection (Recommendation, employment) (β=-.16, p=.003), and the explanation power was 23.1% (F=9.43, p<.001). Conclusion: Our study shows that job satisfaction plays a significant role in the intention retention of nurses. It is important to strengthen job satisfaction to increase the retention of nurses. The results of this study may serve as basic data for the development of strategies to improve intention retention in nurses.

• Proceedings of the IEEK Conference
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• 2004.08c
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• pp.460-462
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• 2004

The control of the data retention time is a main issue for realizing future high density dynamic random access memory. There are several leakage current mechanisms in which the stored data disappears. The mechanisms of data disappear is as follow, 1 )Junction leakage current between the junction, 2) Junction leakage current from the capacitor node contact, 3)Sub-threshold leakage current if the transfer transistor is affected by gate etch damage etc. In this paper we showed the plasma edge damage effect to find out data retention time effectiveness. First we measured the transistor characteristics of forward and reverse bias. And junction leakage characteristics are measured with/without plasma damage by HP4145. Finally, we showed the comparison TRET with etch damage, damage_cure_RTP and hydrogen_treatment. As a result, hydrogen_treatment is superior than any other method in a curing plasma etch damage side.

• Korea Journal of Hospital Management
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• v.29 no.2
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• pp.1-17
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• 2024

Purpose: This descriptive study aimed to identify shift nurses' retention intention, need satisfaction, calling and vocation, and job stress, as well as the effects of these factors on retention intention. Methods: The participants of this study were 193 nurses working shifts with more than three months' clinical experience at general hospitals. Data were collected using a structured questionnaire from February 1 to 28, 2023. Nurses' Retention Index and Nurse Needs Satisfaction Scale, Korean version of the Calling and Vocational Questionnaire, Korean Occupational Stress Scale were used. Data were analyzed using SPSS/WIN 23.0 program. Independent t-test, one-way ANOVA, Pearson's correlation analysis, and hierarchical multiple regression analysis were conducted for statistical analysis. Results: Regarding nurses' shift work, the mean scores for retention intention, needs satisfaction, calling and vocation, and job stress were 32.12±9.04, 94.87±14.74, 26.95±6.84, and 66.12±10.34. Moreover, the nurses' retention intention differed significantly by age, education level, religion, marital status, clinical experience, satisfaction with wage, and job satisfaction. Furthermore, retention intention was positively correlated with needs satisfaction and calling and vocation and negatively correlated with job stress. Needs satisfaction, and calling and vocation as well as education level of bachelor's degree, job satisfaction had positive effects on shift work nurses' retention intention. Job dissatisfaction had relatively negative effects on retention intention compared to having neutral job satisfaction. Conclusion: It is necessary to develop programs that promote needs satisfaction, calling and vocation, and job satisfaction to improve nurses' retention intention in relation to shift work; moreover, institutional support for acquiring a bachelor's degree or higher is needed.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.37 no.5
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• pp.1-8
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• 2000

Fatigue and data retention characteristics of the Pt/PZT/Pt structure using single grain PZT thin films by PZT seeding method were investigated. In case of fatigue, there is no loss in switched polarization up to 2$\times$10$^{11}$ cycles using 1MHz square wave form at $\pm$10V and no data loss after 30000sec of memory retention at room temperature. From the activation energy measured at high temperatures, the time required 20% loss in remanent polarization is estimated to be 6.6$\times$10$^{7}$ years at room temperature.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.19 no.2
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• pp.244-252
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• 2012

Purpose: The purpose of this study was to investigate the relationship between professional self-concept, nursing performance and retention intention of emergency department (ER) nurse. Methods: Data were collected from a convenience sample of 200 ER nurses who worked in one of 9 hospitals in 2cities. The instrument for this study was a structured questionnaire on professional self-concept, nursing performance and retention intention. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficient, and multiple regression. Results: The mean score for professional self-concept was 2.52 (0.27), for nursing performance was 2.70(0.31), and for retention intention, 4.87 (1.48). There were significant differences on three variables length of ER career, average income, and satisfaction with nursing. There was a significant positive correlation between professional self-concept and nursing performance, and retention intention. Professional self-concept was the most significant predictor variable. Conclusion: The results suggest that the improvement of ER nurses' professional self-concept will improve their nursing performance and retention intention. Therefore, it is necessary to develop strategies which strengthens professional self-concept in order to improve ER nurses' performance and retention intention.