• Title/Summary/Keyword: presentation delay

검색결과 79건 처리시간 0.028초

인트라넷 환경에서의 공장자동화를 위한 센서 망 실시간 트래픽 성능 평가 (Performance Analysis of Sensor Network Real-Time Traffic for Factory Automation in Intranet Environment)

  • 송명규;추영열
    • 한국멀티미디어학회논문지
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    • 제11권7호
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    • pp.1007-1015
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    • 2008
  • 제조공정 내의 센서 및 계장기기로 부터의 실시간 데이터를 웹 상에서 제공하기 위해 XML(eXtensible Markup Language)에 기반한 통신 서비스 모델을 제안하였다. HTML(Hyper Text Markup Language)은 웹상에 비실시간 멀티미디어 데이터를 표현하는 데는 적합하나 제조 공장에서 발생되는 실시간 데이터를 표현하는 데는 적합하지 못하다. 인트라넷 환경에서 프로세스 데이터의 XML 기반 웹 서비스 적용을 위해 시스템 설계 기준을 제공을 목적으로 통신 서비스의 실시간 성능에 대해 평가하였다. 데이터 표현을 위한 XML스키마를 제안하고 메시지 길이 증가로 인한 전송 지연과 원 데이터를 정의된 XML 표현으로 변환하는 과정에서 발생하는 처리 지연의 측면에서 시뮬레이션에 의해 성능을 평가하였다. 시뮬레이션에서 XML로의 변환 기능을 수행함에 있어 두 가지 형태의 구현 구조를 가정하였다. 하나는 데이터의 변환이 데이터가 계측기에서 SCC(Supervisory Control Computer)로 전송된 이후 SCC에서 수행되는 구조이고 다른 하나는 데이터가 SCC로 전송되기 전에 계측기에서 변환 과정이 수행되는 구조이다. 두 구조 각각에 대해 20%, 50%, 80%의 부하와 6종의 메시지 길이의 조건 각각을 변화시키면서 성능을 평가하였다. 실험 결과는 Ethernet 100BBaseT 네트워크에서 총 트래픽이 7 Mbps 이하인 시스템에서 적용이 가능함을 보여 주었다.

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Clinical Characteristics of Febrile UTI First Developed Over 5 Years of Age

  • Roh, Da Eun;Suh, Hyo Rim;Min, So Yoon;Jo, Tae Kyoung;Baek, Hee Sun;Cho, Min Hyun
    • Childhood Kidney Diseases
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    • 제21권1호
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    • pp.15-20
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    • 2017
  • Purpose: Febrile urinary tract infection (UTI) is one of the commonest bacterial infections in children. The purpose of this study is to investigate the clinical characteristics of the first episode of febrile UTI occurring in children over 5 years compared to those in infants younger than a year. Methods: We retrospectively reviewed the medical records of 10 patients over 5 years, having febrile UTI, and 25 controls under 1 year. Clinical characteristics including symptoms at admission, the time interval between symptom onset and hospital visit and/or diagnosis, duration of fever, urinalysis, and other laboratory and imaging test results were compared between the two groups. Results: Most patients in the control group showed only high fever at the time of presentation to the hospital. However, 60% of the case group had fever along with gastrointestinal (GI) symptoms such as abdominal and flank pain, vomiting, as well as relatively mild pyuria. The case group showed a longer duration between symptom onset and hospital visit and/or diagnosis. Conclusions: Delay in diagnosis and initiation of treatment of UTI increases the risk of permanent renal scarring and associated complications. Therefore, early diagnosis and treatment of febrile UTI is vital for very young infants, as well as children considering that febrile UTI could be an important cause of febrile illness in children over 5 years.

Lesch-Nyhan 증후군 환아의 자해 예방을 위한 보존적 접근 : 증례보고 (A PRESERVATIVE APPROACH TO PREVENTION OF SELF-MUTILATION IN PATIENT WITH LESCH-NYHAN SYNDROME ; A CASE REPORT)

  • 강동균;김태완;김영진
    • 대한장애인치과학회지
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    • 제2권2호
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    • pp.147-152
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    • 2006
  • 자해 행동으로 인하여 하순이 심하게 손상된 Lesch-Nyhan 증후군 환아를 대상으로 소아 정신과와의 협진을 통한 약물 요법과 soft mouthguard를 이용한 보존적 치료로 단기간에 만족할 만한 결과를 보였다. 결론적으로 Lesch-Nyhan 증후군 환아의 자해를 예방하는 표준화된 방법이 있는 것은 아니지만 발치나 교정적 수술 등의 침습적인 방법 이전에 약물치료와 장치물 치료 등의 보존적 치료를 통한 접근이 먼저 있어야 한다. 그리고, 보존적 치료의 성공을 위해서는 정신과 전문의와의 협진이 요구되며 환자에 대한 보호자의 적극적인 관심과 구강 위생 관리가 반드시 필요하다.

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Establishment of the Repair Cycle of the Components of the Apartment Housing

  • Lee, KangHee;Ahn, YongHan;Chae, Chang-U
    • KIEAE Journal
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    • 제14권2호
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    • pp.69-75
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    • 2014
  • Building has been deteriorated over the year after construction. The deterioration has caused to hinder the living condition and to decrease the building value. Thus, it is important to prevent or delay the building deterioration as well as to proceed the maintenance. The long-term repair program for the apartment in Korea plays a key role to make the repair plan after construction and to assure the function decent. This is not flexible to the change of the material and component because the program is provided by the Korean-law. Many items are omitted in the long-term program so that the maintenance experts face many difficulties to make a repair plan. In this paper, it aimed at providing the repair cycle and repair ratio according to the repair scope, which are not provided in the current program. This study shows that the repair ratio is presented with quartile range in 25%, 50%, 75% and 100%. This has an advantage to take an overall look in repair items. Under this presentation of the repair ratio, each item has a unique repair value. Second, the repair scope is divided into partly repair, fully repair, partly alteration and fully alteration. If a fully repair has a repair ratio close to 100%, it would mean that a fully repair is a fully alteration. Third, the short repair cycle means that it requires to maintain the function or performance of the components in a short term.

스마트 환경에서 이-러닝 서비스를 위한 학습 미디어 Harmonizing 기법 연구 (A Study on the Harmonizing media for E-learning service in Smart Environment)

  • 김스베틀라나;윤용익
    • 한국컴퓨터정보학회논문지
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    • 제17권10호
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    • pp.137-143
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    • 2012
  • 학습자들은 스마트 디바이스를 이용하여 언제 어디서나 인터넷 접속을 통한 각종 학습처리까지 가능하다. 일상생활에서 계속적으로 스마트 디바이스를 이용할 수 있는 인터넷의 자유를 얻는 만큼 학습자들의 다양한 학습(learning) 서비스 요구와 이용 또한 활발해 진 것이다. 이점에서 요구하는 학습의 관련된 자료들을 동시에 제공할 수 있는 조화로운 융합형 학습 서비스를 제공하는 새로운 이-러닝 연구의 필요성이 높아지고 있다. 융합형 학습 서비스는 하나의 혹은 여러 디바이스를 통해 복합 미디어를 구성하는 각각의 콘텐츠간의 조화로운 동기화는 중요 조건이다. 현재는 대표적으로 융합미디어간의 동기화를 제공하는 방법은 콘텐츠간 절대적인 시간 값을 맞추는 방법이다. 그러나 이 방법은 콘텐츠를 전송시 시간적인 딜레이 발생한다. 또한 콘텐츠의 지속시간에 대한 절대적인 시간값을 직접 입력해야하는 번거로움이 있으며, 콘텐츠 작성 시 여러 문제들이 발생한다. 본 논문에는 동기화 문제를 해결 할 수 있는 내용에 따른 하모나이징 동기화 기법 모델(Harmonizing Sync Model)을 제고하고자 한다. 내용에 따른 동기화 기법은 학습 콘텐츠를 집합관계를 효과적으로 모델링 하여 다양한 학습 융합미디어를 갖춘 스마트러닝 개념이다.

Skin Cancer Concerns in People of Color: Risk Factors and Prevention

  • Gupta, Alpana K;Bharadwaj, Mausumi;Mehrotra, Ravi
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권12호
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    • pp.5257-5264
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    • 2016
  • Background: Though people of color (POC) are less likely to become afflicted with skin cancer, they are much more likely to die from it due to delay in detection or presentation. Very often, skin cancer is diagnosed at a more advanced stage in POC, making treatment difficult.The purpose of this research was to improve awareness regarding skin cancers in people of color by providing recommendations to clinicians and the general public for early detection and photo protection preventive measures. Methods: Data on different types of skin cancers were presented to POC. Due to limited research, there are few resources providing insights for evaluating darkly pigmented lesions in POC. Diagnostic features for different types of skin cancers were recorded and various possible risk factors were considered. Results: This study provided directions for the prevention and early detection of skin cancer in POC based on a comprehensive review of available data. Conclusions: The increased morbidity and mortality rate associated with skin cancer in POC is due to lack of awareness, diagnosis at a more advanced stage and socioeconomic barriers hindering access to care. Raising public health concerns for skin cancer prevention strategies for all people, regardless of ethnic background and socioeconomic status, is the key to timely diagnosis and treatment.

Who are the Breast Cancer Survivors in Malaysia?

  • Ibrahim, Nor Idawaty;Dahlui, M.;Aina, E.N.;Al-Sadat, N.
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권5호
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    • pp.2213-2218
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    • 2012
  • Introduction: Worldwide, breast cancer is the commonest cause of cancer death in women. However, the survival rate varies across regions at averages of 73%and 57% in the developed and developing countries, respectively. Objective: This study aimed to determine the survival rate of breast cancer among the women of Malaysia and characteristics of the survivors. Method: A retrospective cohort study was conducted on secondary data obtained from the Breast Cancer Registry and medical records of breast cancer patients admitted to Hospital Kuala Lumpur from 2005 to 2009. Survival data were validated with National Birth and Death Registry. Statistical analysis applied logistic regression, the Cox proportional hazard model, the Kaplan-Meier method and log rank test. Results: A total of 868 women were diagnosed with breast cancer between January 2005 and December 2009, comprising 58%, 25% and 17% Malays, Chinese and Indians, respectively. The overall survival rate was 43.5% (CI 0.573-0.597), with Chinese, Indians and Malays having 5 year survival rates of 48.2% (CI 0.444-0.520), 47.2% (CI 0.432-0.512) and 39.7% (CI 0.373-0.421), respectively (p<0.05). The survival rate was lower as the stages increased, with the late stages were mostly seen among the Malays (46%), followed by Chinese (36%) and Indians (34%). Size of tumor>3.0cm; lymph node involvement, ERPR, and HER 2 status, delayed presentation and involvement of both breasts were among other factors that were associated with poor survival. Conclusions: The overall survival rate of Malaysian women with breast cancer was lower than the western figures with Malays having the lowest because they presented at late stage, after a long duration of symptoms, had larger tumor size, and had more lymph nodes affected. There is an urgent need to conduct studies on why there is delay in diagnosis and treatment of breast cancer women in Malaysia.

소아의 결장에서 발생한 원발성 선암종 1예 (A Case of Mucinous Adenocarcinoma of the Sigmoid Colon in a Child)

  • 정재열;서유경;김애숙;이선주;조성민;이동석;김두권;최성민;김동훈
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제10권1호
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    • pp.81-85
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    • 2007
  • 소아와 청소년기에 발생하는 대장의 악성 종양은 매우 드물고 예후가 불량하다. 저자들은 내원 3개월 전부터의 식욕 부진, 체중 증가 지연과 내원 6일 전부터의 설사, 복통, 복부 종괴 촉지를 주소로 내원한 12세 남아에서 복부 초음파 촬영, 복부 전산화 단층 촬영, 바륨대장 조영술, 대장 내시경 검사 및 조직 검사 소견으로 진단된 S상 결장에 발생한 점액 선암종 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

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The Theory of Change in Nursing Practice

  • Gas, Du
    • 대한간호학회지
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    • 제9권2호
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    • pp.1-6
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    • 1979
  • The topic I have chosen for presentation to you today is entitled, the theory of change in nursing practice or to put it into simpler words. How do new ideas in nursing get started - Where do they come from\ulcorner - How are these ideas spread through the social system of nurses\ulcorner - What makes some Directors of Nursing more ready to accept change than others\ulcorner What factors in-fluence than to introduce change\ulcorner The process of change has been the subject of considerable research in such diverse disciplines and fields as anthropology and rural sociology, marketing and, also, education, for many years. The studies are called“diffusion”studies, or sometimes“adoption”studies, or“adoption of innovation”studies. They deal specifically with the transmission of innovations to members of a social system, and are considered a subset of research in the general field of communication, Although a number of studies have been undertaken in medicine, and, in the past decade, numerous ones in education, there have been few studies on the process of change in nursing. Yet, nursing has undergone tremendous changes in the past 10 years - the nursing process has been introduced, there is the expanded role of the nurse which is rapidly becoming a regular mode of practice - and many, many more changes, We seem to be always running to try. to keep up with changes that have already taken place. Yet little is known about known about the process of change itself - how practitioners learn about new ideas and techniques, or about the factors which influence nurses to accept some changes and reject others. The purpose of the study I am about. to describe was to analyze the process of change as it functioned in regard to nursing innovations in a selected segment of Canadian hospitals, and to relate the analysis to general research and theory about information transmission and the acceptance of change. Three aspects of the process were investigated : 1. The flow of information about changes in nursing practice through a network of hospitals. 2. Factors influencing the adoption of changes in nursing practice. 3. Factors influencing delay in the adoption process, the rejection of changes, or their discontinuance following adoption.

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Design of 8K Broadcasting System based on MMT over Heterogeneous Networks

  • Sohn, Yejin;Cho, Minju;Paik, Jongho
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제11권8호
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    • pp.4077-4091
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    • 2017
  • This paper presents the design of a broadcasting scenario and system for an 8K-resolution content. Due to an 8K content is four times larger than the 4K content in terms of size, many technologies such as content acquisition, video coding, and transmission are required to deal with it. Therefore, high-quality video and audio for 8K (ultra-high definition television) service is not possible to be transmitted only using the current terrestrial broadcasting system. The proposed broadcasting system divides the 8K content into four 4K contents by area, and each area is hierarchically encoded by Scalable High-efficiency Video Coding (SHVC) into three layers: L0, L1, and L2. Every part of the 8K video content divided into areas and hierarchy is independently treated. These parts are transmitted over heterogeneous networks such as digital broadcasting and broadband networks after going through several processes of generating signal messages, encapsulation, and packetization based on MPEG media transport. We propose three methods of generating streams at the sending entity to merge the divided streams into the original content at the receiving entity. First, we design the composition information, which defines the presentation structure for displays. Second, a descriptor for content synchronization is included in the signal message. Finally, we define the rules for generating "packet_id" among the packet header fields and design the transmission scheduler to acquire the divided streams quickly. We implement the 8K broadcasting system by adapting the proposed methods and show that the 8K-resolution contents are stably received and serviced with a low delay.