• Journal of the Korean Society for Aeronautical & Space Sciences
• /
• v.48 no.1
• /
• pp.63-72
• /
• 2020

As the design complexity and performances are increased in satellite electronic board, noise related problems are also increased. To minimize the noise issues, various design improvements are performed by power integrity and signal integrity analysis in this research. Static power and dynamic power design are reviewed and improved by DC IR drop and power impedance analysis. Signal integrity design is reviewed and improved by time domain signal wave analysis and PCB(Printed Circuit Board) design modifications. And also power planes resonance modes are checked and mitigation measures are verified by simulation. Finally, it is checked that radiated noise is reduced after design improvements by EMC(Electro Magnetic Compatibility) RE(Radiated Emission) measurement results.

• Korean Journal of Adult Nursing
• /
• v.27 no.3
• /
• pp.262-272
• /
• 2015

Purpose: This study was conducted to examine the mutual reciprocal relationship between elders' ego integrity and depression including physical and psycho-social predictors of both variables. The study also investigated the significant predictors of elders' ego integrity and depression. Methods: Data were collected using a structured questionnaire from 137 elders. Results: Perceived health status, self-esteem, family interaction, and depression were significant predictors of ego integrity, whereas pain, self-esteem, and ego integrity were significant factors of depression. The results also showed that ego integrity and depression had reciprocal relationship with each other. Conclusion: Psycho-social factors might be more important to improve ego integrity and to alleviate depression in elderly subjects than physical factors.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2002.05a
• /
• pp.380-383
• /
• 2002

It Is difficult to manage broken link with dangling reference, inaccurate reference m the manual site that is consist of HTML documents of much quantity as KLDP(Korean Linux Documentation Project, http:/ /kldp.org) Web site. In this paper. we define relationship and constrain renditions that exist between Web site's HTML documents. And we design and implement HIMS(HTML Document Integrity Management System), which notify user that integrity violation happens or launch trigger operation to keep integrity between HTML documents in case of insert, delete, update.

• International conference on construction engineering and project management
• /
• 2005.10a
• /
• pp.1106-1111
• /
• 2005

The present Korean laws related to anti-corruption are not effective in preventing corruptions[1]. In this context, the purpose of this study is to build the proactive anti-corruption operating system that has the function to prevent corruptions from occurring in the contract and procurement sector of Korean public construction projects. The proactive anticorruption operating system consists of four parts ; developing integrity performance manual(IPM), making integrity performance plan(IPP), practicing IPP, and integrity performance evaluation(IPE). By analyzing various kinds of audits and relevant laws and interviewing with government officials and staff in construction companies, the causes and stereotypes of corruptions and the concept, role, and guide of IPM, IPP, and IPE are provided in this paper.

• Proceedings of the Korea Concrete Institute Conference
• /
• 1999.10a
• /
• pp.623-626
• /
• 1999

Structural integrity in concrete structures are affected by materialistic and environmental factors. Therefore, to develop a objective integrity evaluation method is extremely difficult. In this study, preliminary integrity evaluation method for concrete structures was proposed by conducting by visual and detailed inspection for in-situ conditions based on the weighting factors for structural significance and integrity degrading factors of each element constituting concrete structures.

• Proceedings of the Korean Nuclear Society Conference
• /
• 2001.10a
• /
• pp.203.1-203
• /
• 2001

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.18 no.4
• /
• pp.529-537
• /
• 2011

Purpose: This study was done to identify the relationship of perceived health status, depression, meaning of life, and family function and to ego integrity, and to investigate the main factors influencing ego-integrity in community dwelling elders. Method: The research design for this study was a descriptive survey design using a convenience sampling. Data collection was done using self-report questionnaires with 157 community dwelling elders located in 3 cities, Seoul, Seosan and Gyungju. Data analysis was done using SPSS 15.0 pc+ program for descriptive statistics, Pearson correlation coefficients and stepwise multiple regression. Results: There were significant differences between ego-integrity according to gender, religion, economic level and amount of spending money. Ego-integrity had significant positive correlations with perceived health status, meaning of life, family function and a negative correlations with depression. The major factors that affect ego-integrity in community dwelling elders were self-awareness and acceptance, contentedness with past and present, gender and family function, which explained 62.7% of ego-integrity. Conclusion: Findings from this study provide a comprehensive understanding of ego-integrity and related factors for community dwelling elders.

• Journal of Korean Society of Water and Wastewater
• /
• v.18 no.6
• /
• pp.801-806
• /
• 2004

The pilot study was conducted to (i) investigate the ability of various membrane integrity monitoring methods to detect changes in membrane integrity during operation, and (ii) determine the impact of membrane damage on microbial removal by microfiltration. Two variations of air pressure hold tests were investigated for direct integrity monitoring: pressure decay (PD) and diffusive air flow (DAF) tests which are most commonly used integrity tests for microfiltration (MF) membranes. Both PD and DAF tests were sensitive enough to detect one damaged fiber out of 66,000 under field operaing conditions. Indirect integrity monitoring such as turbidity and particle counting, however, responded poorly to defects in membrane systems. Microbial challenge study was performed using both new and deliberately damaged membranes, as well as varying the state of fouling of the membrane. This study demonstrated that MF membrane with nominal pore size $0.2{\mu}m$ was capable of removing various pathogens including coliform, spore, and cryptosporidium, at the level required by drinking water regulations, even when high operating pressures were applied. A sharp decrease in average log reduction value (LRV) was observed when one fiber was damaged, emphasizing the importance of membrane integrity in control of microbial contamination.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• v.2
• /
• pp.9-14
• /
• 2006

Galileo is the European Global Navigation Satellite System, under civilian control, and consists on a constellation of medium Earth orbit satellites and its associated ground infrastructure. Galileo will provide to their users highly accurate global positioning services and their associated integrity information. The elements in charge of the computation of Galileo navigation and integrity information are the OSPF (Orbit Synchronization Processing Facility) and IPF (Integrity Processing Facility), within the Galileo Ground Mission Segment (GMS). Navigation algorithms play a key role in the provision of the Galileo Mission, since they are responsible for computing the essential information the users need to calculate their position: the satellite ephemeris and clock offsets. Such information is generated in the Galileo Ground Mission Segment and broadcast by the satellites within the navigation signal, together with the expected a-priori accuracy (SISA: Signal-In-Space Accuracy), which is the parameter that in fault-free conditions makes the overbounding the predicted ephemeris and clock model errors for the Worst User Location. In parallel, the integrity algorithms of the GMS are responsible of providing a real-time monitoring of the satellite status with timely alarm messages in case of failures. The accuracy of the integrity monitoring system is characterized by the SISMA (Signal In Space Monitoring Accuracy), which is also broadcast to the users through the integrity message.

• Journal of Korean Academy of Nursing
• /
• v.34 no.7
• /
• pp.1172-1183
• /
• 2004

Purpose: Ego-integrity in Erikson's stage theory is used frequently among health team members related to the care of the elderly and has specific meanings within the context of quality of life in later life. However, the concept of ego-integrity in the elderly has not been well articulated in the literature. This study was conducted clarify and conceptualize the phenomena of ego-integrity in the elderly. Method: A Hybrid Model of concept development was applied to develop a concept of ego-integrity, which included a field study carried out in Seoul, South Korea using in-depth interviews with old adults who were admitted as a right person for research subject according to attributes of ego-integrity analysed in the theoretical phase. Results: The concept of ego-integrity emerged as a complex phenomenon having meanings in several different dimensions which encompassed several attributes. Conclusions: Ego-integrity is a concept having needs that should be treated in a specific way and it is possible to enrich the meaning and methods to manage ego-integrity in nursing interventions for promoting quality of life so that its application may have effects that have positive impacts on the elderly's well being.