• ETRI Journal
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• 제38권5호
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• pp.838-846
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• 2016

The objective of digital broadcasting has evolved from providing a plain video service to offering a realistic visual experience. Technologies such as 3DTV and UHDTV have been suggested to achieve this new objective by providing an immersive and stereoscopic visual experience. However, owing to the high bandwidth requirements of such services, the broadcasting industry has faced a challenge to find a new transport mechanism for overcoming the bandwidth limitation. The standardization organizations, the Advanced Television Systems Committee, Digital Video Broadcasting, and Telecommunications Technology Association, have been working on the integration of broadcasting and a broadband network (IP) to resolve the bandwidth issue of realistic video services. This paper introduces a frame-level timeline synchronization and transport system target decoder model for providing a stable 3DTV service over a hybrid network. The experimental results indicate that the proposed technologies can be successfully adopted as a reference model in a broadcast-broadband hybrid 3DTV service and other IP-associated hybrid broadcasting services.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제5권7호
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• pp.173-180
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• 2016

스마트폰은 다양한 사용자 정보를 저장하고 있으므로, 디지털 포렌식 관점에서 앱 데이터 분석을 통해 사건과 관련된 유용한 정보를 얻을 수 있다. 하지만 스마트폰의 특성상 높은 이동성과 데이터의 손실이나 위 변조 가능성이 크기 때문에 그에 맞는 포렌식 방법이 필요하다. 특히 위 변조된 타임스탬프는 디지털 증거의 신뢰성을 저하하며, 타임라인 분석에 어려움을 가져온다. 이 논문은 iOS 운영체제를 기반으로 하는 디바이스 내에서 타임스탬프 위 변조 여부를 조사할 수 있는 사용 흔적들을 제시한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권1호
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• pp.229-240
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• 2012

Advances in MEMS and CMOS technologies have motivated the development of low cost/power sensors and wireless multimedia sensor networks (WMSN). The WMSNs were created to ubiquitously harvest multimedia content. Such networks have allowed researchers and engineers to glimpse at new Machine-to-Machine (M2M) Systems, such as remote monitoring of biosignals for telemedicine networks. These systems require the acquisition of a large number of data streams that are simultaneously generated by multiple distributed devices. This paradigm of data generation and transmission is known as event-streaming. In order to be useful to the application, the collected data requires a preprocessing called data fusion, which entails the temporal alignment task of multimedia data. A practical way to perform this task is in a centralized manner, assuming that the network nodes only function as collector entities. However, by following this scheme, a considerable amount of redundant information is transmitted to the central entity. To decrease such redundancy, data fusion must be performed in a collaborative way. In this paper, we propose a collaborative data alignment approach for event-streaming. Our approach identifies temporal relationships by translating temporal dependencies based on a timeline to causal dependencies of the media involved.

• 대한상한금궤의학회지
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• 제10권1호
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• pp.125-132
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• 2018

Objective : The purpose of this study is to review a case of hypertension. The patient was 41 years, a male. We stabilized blood pressure after administration of Daehuanghuanglianxiexin-tang. In this paper, we review the interpretation of Shanghanlun by analyzing the patient's progress, diagnosis, treatment. Methods : Blood pressure changes have been monitored during the period. Additionally, We have observed the patients' compliance and accompanied symptom by the timeline analysis. Results : According to Shanghanlun disease pattern identification diagnostic system, Wediagnosed a Greater yang disease. The patient was treated with Daehuanghuanglianxiexin-tang for 2 months. Daehuanghuanglianxiexin-tang was able to control blood pressure to under 120mmhg / 80mmhg. During the treatment period, the accompanied symptom Stiffness and pain in posterior neck has improved, patient's compliance was good, and symptoms improved without significant complication Conclusions : Taking of the Daehuanghuanglianxiexin-tang makes patient's blood pressure controlled to safe and stable range and eases the discomfort of posterior neck pain.

• 한국군사과학기술학회지
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• 제22권1호
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• pp.93-105
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• 2019

In order to establish an effective engagement plan of the missile defense system, both spatial and temporal performance analysis of the intercept system should be performed. However, research on existing missile defense systems has been mainly focused on spatial performance. In this study, time performance factors are defined through the composition and operational concept of missile defense system, and the target ballistic missile interception process is presented as integrated timeline through ballistic missile model and radar model. We also proposed an algorithm for deriving time performance. Simulation results confirm that the time performance factors can be used in the engagement planning for multi-engagement through the example of engagement planning.

• 대한한의학방제학회지
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• 제26권4호
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• pp.381-389
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• 2018

Objective : The purpose of this case report is to offer an unprecedented target for Gyejigabuja-tang by analyzing a case in which the symptoms were improved by the herbal decoction therapy, and to accumulate a fundamental knowledge in herbal medicine therapy for urinary incontinence. Method : We studied a patient's chart with the patient's consent and displayed patient's timeline and adherence in a figure according to the CARE guideline. The progress of urination symptoms were assessed with the frequency of urination and how long the patient can stand urine. The accompanied lower limb pain was estimated with Numerical Rating Scale(NRS) Results : The patient's adherence was good during the medication period and symptoms related with urination and accompanied lower limb pain were improved with no specific side effects. NRS of the lower limb pain decreased from 7 to 2, the frequency of urination also improved from over 10 times to 6~8 times per day, and the patient can stand urine from less than 1 second to 2~3 minutes. Conclusions : Gyejigabuja-tang was effective for an urinary incontinence patient which corresponds to the provision No.20 in Shanghanlun.

• 대한한방부인과학회지
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• 제32권2호
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• pp.71-86
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• 2019

Objectives: The purpose of this study is to assess the quality of case reports from the Journal of Obstetrics and Gynecology of Korean Medicine. Methods: Case reports were selected from the Obstetrics and Gynecology of Korean Medicine from January 2015 to March 2019, by utilizing Oriental Medicine Advanced Searching Integrated System (OASIS). The quality of the reports were reviewed based on the Consensus-based Clinical Case Reporting Guideline Development (CARE) guideline. Results: Total of 41 case reports were finally selected for the assessment. 69.23% of the case reports included necessary information based on the CARE guideline but the rest of the reports did not. More than 50% of the reports were missing data regarding 'Diagnostic challenges', 'Intervention adherence and tolerability', 'Adverse and unanticipated events', or 'Patient perspective or experience', and 'Informed consent'. Also, the reports did not include 'Key word', 'timeline'. Conclusions: Case reports from the Journal of Obstetrics and Gynecology of Korean Medicine have important role in women. Efforts are needed to improve the quality of the case reports as well as to develop reporting guidelines for the Journal of Obstetrics and Gynecology of Korean Medicine.

• 천문학회보
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• 제44권1호
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• pp.61.2-61.2
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• 2019

A total of 10,317 hours of the KMTNet telescope time were allocated for the predefined science programs, and 7,765 hours have been used for science exposures in Chile, Australia and South Africa last year. The success rate of science observation has increased from 70.7% to 75.3%, and the system operation rate has also increased from 97.6% to 99.6%. There were many improvements in mechanical parts of the dome structure and telescope system, and newly installed filter driers of the CCD camera increased the stability of the system by preventing contamination of oil in the gas line in advance. In order to prepare for the time domain astronomy and multi messenger astronomy era, a pilot program was designed and is now being tested. It targets for fast follow-up observations of optical transient events, however it runs during twilight times only so it does not interrupt any granted science program. A total of 32 SCI papers were published using the system in 2018 and it is a good indication of the high science performance of KMTNet. The selection process of the next observation programs starting from October 2020 and its timeline will be discussed in this meeting.

• 대한건축학회논문집:계획계
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• 제35권12호
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• pp.115-125
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• 2019

Most of construction at urban area is now undertaking a redevelopment because currently the most of city is full. But the research about the collision of urban tissue at urban redevelopment area are very limited and there are many issues at urban redevelopment area. So the purpose of this study is to analyze the collision between different urban tissue at urban redevelopment area and suggest proper method for urban redevelopment. The area inside of four main gates, especially Chung Jin, Gong pyeong, Mu gyo- Da dong district are selected to analyze because the area inside of these gates is the oldest urban redevelopment area and each of them has a different redeveloped method. And current status of research area's urban tissue and collision situation are analyzed by macro and micro scale of view. The results of this study were as follows; Ignoring the timeline of the urban redevelopment process can be a major issue in collision between urban tissue. Therefore, the consideration of intermediate stage of redevelopment process is needed by making public area, a temporal use of vacant lot and changing architectural elements can make a harmony between different urban tissue.

• Child Health Nursing Research
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• 제27권1호
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• pp.75-85
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• 2021

Purpose: The symptoms and impairments caused by cerebral palsy usually require long-term treatment, resulting in a substantial burden on the family of affected children. This study explored the experiences of fathers with prematurely-born children with cerebral palsy, with a focus on how such experiences influenced their families. Methods: A qualitative case study method was used. Nine subjects were recruited from April 2018 to June 2019 at one hospital, and each was interviewed three times by a neonatal nurse. Results: Five core experiences of fathers were identified: "regret for an insufficient initial response", "confronting my child born as a premature baby", "the position of being a dad who can't do anything", "the process of treatment like a tunnel with no exit", and "a father's getting meaning in life through children". These stories covered an individual's timeline and family interactions. Conclusion: Our findings suggest that fathers of prematurely-born children tend to suppress their emotions; therefore, a novel intervention program to encourage fathers' emotional expression and to support healthier interactions with their families is needed. Moreover, our findings could contribute basic information for the construction of a community-based support system to aid families, including prematurely-born children and other persons with impairments.