• Title/Summary/Keyword: duplication

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Paper Duplication Method Supported by Task (태스크 기반 이중화 방안)

  • Lee, Jong-Chan;Park, Sang-Joon;Kang, Kwon-Il
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.27 no.1C
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    • pp.103-111
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    • 2002
  • In RNC of IMT-2000, main control processors such as ASP, ACP and OMP are responsible for call control function, and the high reliability and real-time property should be provided for it. So, the study of real-time fault-tolerant for it is needed. In this paper, we proposes an Task based duplication method, in which Tasks in active side operated on message unit and send the updated data to standby side after operation, log in the message to standby side for recovery during take-over. This scheme decreases the dual down and the complexity of synchronization procedure, and performs the synchronization more exactly because Tasks control the synchronization of system. This paper also proposes the fault detection and the fault handing method for effective implementation of Task based duplication. This scheme focus on increasing the fault detection rate and intercepting originally that fault data is send to standby side.

Automatic Node Configuration Protocol for Small Sized Mobile Ad-Hoc Networks (소규모 이동 애드혹 네트워크에서의 자동 노드 설정 프로토콜)

  • Lee Hyewon K.;Mun Youngsong
    • Journal of KIISE:Information Networking
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    • v.32 no.1
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    • pp.100-109
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    • 2005
  • A Mobile Ad-Hoc Network (MANET) supports a multi-hop wireless network without any prepared base station (BS). The MANET is capable of building a mobile network automatically without any help from DHCP servers for address allocation or routers to forward or route messages. Many routing protocols have been proposed for the MANET, but these specify the most optimized or shortest path from a source to a destination, and they assume that nodes are pre-configured before communication. To make up for this, address allocation algorithms, such as MANETConf [1] and prophet address allocation algorithm [2], have been proposed. Especially, MANETConf proposes address allocation algorithm with duplication address check. In this paper, we present a dynamic node configuration protocol based on 2-tierd hierarchical network architecture for mobile ad-hoc network, modified from [1]. Especially, it reduces the number of broadcast message exchange between nodes when a new node somes into a network, which lessens network overhead, remarkably. This protocol is based on two-tired structure, and it ensures address allocation with simple duplication address defection mechanism.

A Case of Intestinal Duplication Cyst Identified as Pathological Lead Point in a Child with Recurrent Intussusception (재발성 장중첩증 환아에서 병적 선두로 확인된 장중복 낭종 1예)

  • Lee, Kun-Song;Park, Ji-Yun;Oh, Jong-Seok;Seong, In-Chang;Han, Kang-Min;Lee, Young-Seok
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.13 no.1
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    • pp.75-80
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    • 2010
  • Intestinal duplication cysts are characterized by the attachment to some part of the gastrointestinal tract with which a blood supply is shared, and have an epithelial lining resembling some part of the alimentary tract. A 15-month-old female was admitted to our hospital with cyclic irritability, vomiting, and blood-tinged stool. The results of an ultrasound showed an ileocolic intussusception and a 1.3 cm cystic mass had double-wall sign and a Y-configuration with an adjacent ileal loop. She had a past history of two ileocolic intussusceptions. The cystic mass was considered to be a pathologic lead point, so resection and end-to-end anastomosis was performed. The gross and histologic evaluation of the specimen demonstrated a $2.4{\times}2.4$ cm cystic mass containing yellow mucoid fluid and the cyst wall was lined with intestinal and gastric mucosa and enclosed by a layer of muscle, which was shared with the adjacent ileum.

A Study on the Present Book Numbers Used in Korean Libraries (우리나라 도서관에서 사용하고 있는 도서기호법에 관한 실태조사연구)

  • Lee Yang-Sook
    • Journal of the Korean Society for Library and Information Science
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    • v.28
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    • pp.23-70
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    • 1995
  • This study is to survey the present book numbers used in Korean libraries. to analyze their problems. and to suggest improvement in the book numbers. As the results of the survey several suggestions are derived as follows. 1. The education to the librarians about the kinds and the application methods of the book numbers used in Korean libraries should be sufficiently offered. 2. The present book numbers used should be expanded in detail for avoiding the duplication of the call numbers. Also when book numbers are assigned. shelf list cards should be examined one by one not to give the same number. If the book numbers are overlapped in the state not to expand further. libraries should establish a detailed expansion rules according to their respective situation and maintain it consistently. However, it is impossible for libraries operating open stack systems to arrange books on the shelves in call number sequence, therefore libraries can solve the problems as they accept duplication cases. 3. Since the object word of main mark IS a heading In main entry, we must apply cataloging rules to it closely. 4. For expanding book numbers widely it is desirable that the subsidiary mark of the book numbers which is the most prevalent in general and will be the most preferable In the future through the survey should be added and be provided. 5. The book numbers used being changed, we are to assign new book number leaving former materials as they are at the point of adopting a new book number. So aged materials are stored in a repository or on a compact shelf in the stack, will be discarded or weeded according to subjects after a certain period of time. 6. With library automation bringing together all the books of an author in a particular subject or in a particular form and avoiding completely duplication in open stack systems are meaningless. Rather than chronological book numbers, distinguishing clearly new materials from aged materials and controlling the stack spaces mechanically and effectively, can be regarded as the most modern and future-oriented of all the book numbers.

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A Lightweight HL7 Message Strategy for Real-Time ECG Monitoring (실시간 심전도 모니터링을 위한 HL7 메시지 간소화 전략)

  • Lee, Kuyeon;Kang, Kyungtae;Lee, Jaemyoun;Park, Juyoung
    • KIISE Transactions on Computing Practices
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    • v.21 no.3
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    • pp.183-191
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    • 2015
  • Recent developments in IT have made real-time ECG monitoring possible, and this represents a promising application for the emerging HL7 standard for the exchange of clinical information. However, applying the HL7 standard directly to real-time ECG monitoring causes problems, because the partial duplication of data within an HL7 message increases the amount of data to be transmitted, and the time taken to process it. We reduce these overheads by Feature Scaling, by standardizing the range of independent variables or features of data, while nevertheless generating HL7-compliant messages. We also use a De-Duplication algorithm to eliminate the partial repetition of the OBX field in an HL7 ORU message. Our strategy shortens the time required to create messages by 51%, and reduces the size of messages by 1/8, compared to naive HL7 coding.

Retrospective Drug Utilization Review Study on the Therapeutic Duplication in Patients with Anxiety Disorders (불안장애 환자에서의 치료약제 중복사용에 대한 후향적 의약품사용평가 연구)

  • Park, Chan-Hyun;Sohn, Hyun-Soon;Shin, Hyun-Taek;Choi, Kyung-Eob
    • Korean Journal of Clinical Pharmacy
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    • v.20 no.1
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    • pp.39-49
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    • 2010
  • The present study was aimed to examine the occurrence and influencing factors therapeutic duplication (TD) of medications for anxiety disorders by analyzing the relevant prescription data. In this study, the prescription data issued on March 19, 2008 in domestic medical institutes were utilized. TD was defined as more than two medications under the same therapeutic classification per prescription based on the Anatomical Therapeutic Classification (ATC) code. The assessment of TD was performed based on the number of cases and on the ratio determined. To identify the influencing factor of TD, the variables related to the differences in the TD ratio were analyzed based on the results of the Chi-Square test conducted with the variables; patients, medical institutes, diseases, and treatments. The number and ratio of TD were determined to be 1,333 out of the total of 19,219 anxiety disorder cases, and 6.94%, most cases involving benzodiazepine derivatives, respectively. The TD ratio was found to be higher in relation to males than to females. Patients with national health insurance benefits have a higher TD ratio compared to the medical-aid beneficiaries. The TD ratios were highest in clinics, psychiatry divisions, and Gyeongsang district. The TD ratio of the cases with more than two anxiety disorders was found to be higher than that of the cases with only one anxiety disorder. As the number of medications per prescription increased, the TD ratio was shown to have become gradually higher. In conclusion, in order to prevent TD, the concurrent DUR system should be implemented. The prescribers and pharmacists must be educated regarding duplicated medications to promote the safe and effective use of medicines, without unnecessary TD.

Surface Reconstruction from unorganized 3D Points by an improved Shrink-wrapping Algorithm (개선된 Shrink-wrapping 알고리즘을 이용한 비조직 3차원 데이터로부터의 표면 재구성)

  • Park, Eun-Jin;Koo, Bon-Ki;Choi, Young-Kyu
    • The KIPS Transactions:PartA
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    • v.14A no.3 s.107
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    • pp.133-140
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    • 2007
  • The SWBF(shrink-wrapped boundary face) algorithm is a recent mesh reconstruction method for constructing a surface model from a set of unorganized 3D points. In this paper, we point out the surface duplication problem of SWBF and propose an improved mesh reconstruction scheme. Our method tries to classify the non-boundary cells as the inner cell or the outer cell, and makes an initial mesh without surface duplication by adopting the improved boundary face definition. To handle the directional unbalance of surface sampling density arise in typical 3D scanners, two dimensional connectivity in the cell image is introduced and utilized. According to experiments, our method is proved to be very useful to overcome the surface duplication problem of the SWBF algorithm.

Soft Error Detection for VLIW Architectures with a Variable Length Execution Set (Variable Length Execution Set을 지원하는 VLIW 아키텍처를 위한 소프트 에러 검출 기법)

  • Lee, Jongwon;Cho, Doosan;Paek, Yunheung
    • KIPS Transactions on Computer and Communication Systems
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    • v.2 no.3
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    • pp.111-116
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    • 2013
  • With technology scaling, soft error rate has greatly increased in embedded systems. Due to high performance and low power consumption, VLIW (Very Long Instruction Word) architectures have been widely used in embedded systems and thus many researches have been studied to improve the reliability of a system by duplicating instructions in VLIW architectures. However, existing studies have ignored the feature, called VLES (Variable Length Execution Set), which is adopted in most modern VLIW architectures to reduce code size. In this paper, we propose how to support instruction duplication in VLIW architecture with VLES. Our experimental results demonstrate that a VLIW architecture with VLES shows 64% code size decrement on average at the cost of about 4% additional cell area as compared to the case of a VLIW architecture without VLES when instruction duplication is applied to both architectures. Also, it is shown that the case with VLES does not cause extra execution time compared to the case without VLES.

Iatrogenic Intramural Dissection of the Esophagus after Insertion of a Laryngeal Mask Airway

  • Kim, Hee Young;Baek, Seung-Hoon;Cho, Yong Hoon;Kim, Joo-Yun;Choi, Yun Mi;Choi, Eun Ji;Yoon, Jung Pil;Park, Jung Hyun
    • Acute and Critical Care
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    • v.33 no.4
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    • pp.276-279
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    • 2018
  • In pediatric patients, a laryngeal mask airway (LMA) is usually used during minor surgeries that require general anesthesia. No esophageal injury has been reported after insertion of an LMA. We report a case of an esophageal injury with intramural dissection after an $i-gel^{(R)}$ (size, 1.5; Intersurgical Ltd.) insertion in a pediatric patient. A 2-month-old male infant was hospitalized for left inguinal herniorrhaphy. After induction of anesthesia, a trained resident tried to insert an $i-gel^{(R)}$. However, it was only successful after three attempts. Dysphagia was sustained until postoperative day 10, and the pediatrician observed duplication of the esophagus on gastroendoscopy. However, a whitish mucosal lesion, which looked like a scar, was observed, and previous lesions suggestive of esophageal duplication were almost healed on postdischarge day 11. His condition was diagnosed as dysphagia and esophagitis due to an esophageal laceration, not esophageal duplication. He was scheduled for symptomatic treatment with a proton pump inhibitor. In conclusion, although an esophageal injury or perforation in pediatric patients is rare, an LMA insertion or a procedure such as aspiration or nasogastric tube insertion should be performed gently to avoid a possible injury to the esophagus in pediatric patients.

Class duplication prescriptions in patients taking fixed-dose combination antihypertensives (고혈압 복합제 복용환자에서 동일계열약물 중복 현황)

  • Koo, Hyunji;Lee, Ji Won;Choi, Ha Eun;Je, Nam Kyung;Jeong, Kyeong Hye
    • Korean Journal of Clinical Pharmacy
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    • v.32 no.2
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    • pp.125-132
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    • 2022
  • Background: Fixed-dose combinations have the advantage of improving patient compliance, but may increase the risk of duplicate prescriptions. As the use of fixed-dose combination antihypertensives increases, it is necessary to investigate the current status of class duplication prescriptions (CDP) in patients taking fixed-dose combination antihypertensives in Korea and to identify factors associated with CDP. Methods: We conducted a retrospective observational study using nationally representative claim data. Hypertensive patients aged 20 years or older taking fixed-dose combination antihypertensives were extracted. Among these patients, patients with CDP were identified. A chi-square test was applied to determine the differences between patients with CDP and non-CDP. The associated factors of CDP were identified through multiple logistic regression. Results: Of the 74,165 patients who were prescribed fixed-dose combination antihypertensives, 426 patients (0.6%) with CDP were identified. The most common antihypertensive class associated with CDP was calcium channel blockers (194 patients, 45.5%), followed by angiotensin II receptor blockers (136 patients, 31.9%). Patients aged 75 years or older (odds ratio [OR] 1.83, 95% confidence interval [CI] 1.02-3.52), chronic kidney disease (OR 4.45, 95% CI 2.15-8.25), chronic heart failure (OR 2.71, 95% CI 1.93-3.72), coronary artery disease (OR 2.22, 95% CI 1.60-3.03) and Medical Aid/Patriots and Veterans Insurance (OR 1.49, 95% CI 1.04-2.07) were significantly associated with increased CDP. Conclusions: The factors associated with CDP were the elderly, comorbidities, and low socioeconomic status. Since CDP can result in negative clinical outcomes, active intervention by the pharmacist is warranted.