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Unroofed Coronary Sinus Syndrome in TOF (Report of one case) (관상 정맥동 천정 결손증의 수술치험 1례)

  • 이만복
    • Journal of Chest Surgery
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    • v.23 no.3
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    • pp.507-513
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    • 1990
  • We experienced an intraatrial baffle repair for unroofed coronary sinus syndrome in TOF. The patient was a 32-month old female, with complaints of cyanosis, exertional dyspnea and growth retardation. Physical examination showed cyanosis of lip, clubbing of finger, growth retardation and systolic murmur[0 /Gr VI] on left sternal border. With an aid of noninvasive and invasive diagnostic procedure, the patient was diagnosed as TOF combined with unroofed coronary sinus syndrome and LSVC connecting to left atrium. After patch closure of VSD, infundibulectomy and pulmonary valvotomy, the intraatrial baffle redirection of anomalous LSVC to right atrium was undertaken. The Dacron baffle was constructed along the roof of the left atrium to the plane of the atrial septum. The intraatrial septum was then reconstructed with Dacron which was sutured to residual septal tissue. After surgery, the systemic oxygen saturation was elevated to 95.5%, as compared with preoperative value 61%. The postoperative course was uneventful.

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Impact of Blockchain Technology on Maritime Transport in the Shipping Industry

  • Byun, Sang-phil;Oh, Jeong-Hun
    • Asia-Pacific Journal of Business
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    • v.12 no.4
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    • pp.53-61
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    • 2021
  • Purpose - The purpose of this paper is to assess the empirical evidence that shows blockchain technology has been a significant contributor to the growth of maritime transport in the shipping industry. Design/methodology/approach - Employing a generalized linear model using data from 2010 to 2019, this paper presents empirical evidence to demonstrate the positive impact of the adoption of blockchain technology on the maritime transport industry. Findings - Results from Granger causality tests confirm that there is a positive unidirectional causality from blockchain technology to maritime transport. This paper also demonstrates the positive effects of information technology (IT) and GDP growth on maritime transport. On the other hand, maritime transport is negatively influenced by the tax burden. Research implications or Originality - The results of this paper suggest a potential sustainable development strategy for the maritime transport industry involving the redirection of economic resources toward blockchain technology. Adopting other forms of IT and reducing the tax burden are also useful strategies for the development of the industry.

Changing Face of the British Social Housing Policy - Under the Conservative Government, 1979-1997 (영국 사회주택정책의 변화 연구 - 보수당 집권기간(1979-1997)을 중심으로 -)

  • Lee, Young-Hwan
    • Korean Journal of Social Welfare
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    • v.35
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    • pp.289-317
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    • 1998
  • This study aims to review and evaluate the changes of the British social housing policy under the Conservative government(1979-1997), and to get some implications for the Korean case. The Conservatives tried to diminish the role of state in the realm of social welfare :in general, and to retreat the social housing policy in particular as a reaction to the' welfare state crisis' started from the early 1970s. In the realm of housing policy, privatisation and marketisation including the massive sale of council houses were driven enthusiastically. Public expenditure cut and redirection of the housing subsidy scheme were also implemented according to the changed policy orientation. The clear visible results of the policy changes can be seen as follows; radical changes of the housing tenure distribution, changing role of local authorities, and the worsening housing problems- housing shortages, residualisation, affordability problem, deepening dependency and the negative distribution of housing subsidy etc. Furthermore the goal of public expenditure cut, in fact, was not accomplished successfully. The results of this study support the argument that the Neo-liberalistic approach to the 'welfare state crisis' have resulted in reconstruction and redirection rather than total abolition of the role of state in welfare provision. This conclusion could provide important implications to Korean case, especially concerning the role of state in the social housing policy.

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Design and implementation of Fault-tolerant CORBA Service for reliability on Real-Time CORBA (실시간 CORBA상에서의 신뢰성 지원을 위한 결함허용 서비스의 설계 및 구현)

  • 김영재;박기용;홍성준;한선영
    • The KIPS Transactions:PartC
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    • v.8C no.1
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    • pp.23-31
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    • 2001
  • Current CORBA has been suggested a solution for complexity of software in distributed environment. But it can't provide reliability about data transfer. For instance, CORBA can't provide object to client when the network are unstable or congested. In an existing CORBA, client has to wait when there is congestion between client and object implementation while client get a service from object implementation. So In this paper, we propose Fault-Tolerant CORBA Service (FTS) which has an intelligent redirection about an object that client requests. Moreover, we designed and implemented Fault-Tolerant Service to provide reliability by extending existing CORBA ORB. Therefore it provides reliable connection throughout the proposed Fault-Tolerant Service.

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Improving the CGA-based HMIPv6 Security Protocol (CGA 기반의 HMIPv6 보안 프로토콜 개선)

  • You, Il-Sun;Kim, Heung-Jun;Lee, Jin-Young
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.1
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    • pp.95-102
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    • 2009
  • In 2006, Haddad, Krishnan and Soliman proposed a Cryptographically Generated Address based protocol as a standard for protecting HMIPv6. Though this protocol can provide both the strong message authentication and binding update key negotiation based on the public-key cryptography, it is still vulnerable to several attacks such as denial of service attacks and redirection attacks. This paper improves the problems caused by the protocol. The improved protocol is analyzed in terms of security and performance, and then is shown to be better than the previous one considering the two factors together.

A Study on the Buyer's Timely Inspection of the Goods in International Sale of Goods (국제물품매매에서 물품검사시기에 관한 고찰)

  • HA, Kang-Hun
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.74
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    • pp.1-23
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    • 2017
  • The buyer must examine the goods, or cause them to be examined, within as short a period as is practicable in the circumstances. Article 38 lays down a fundamental principle that requires the buyer to examine quickly the goods delivered by the seller. Article 38 (1) provides that the examination be made within as short a period as practicable in the circumstances. The goods have to be examined within as short a period as is practicable in the circumstances. The rule is based on the fundamental idea of reasonableness, meaning that the buyer must examine the goods as soon as reasonably possible. It may be said that the buyer should act reasonably fast. Article 38 (2), (3) concerns sales involving carriage of the goods, where the seller's obligation to deliver consists in handing the goods over to the first carrier for transmission to the buyer. In this case the buyer is generally able to examine the goods only after they have come to destination. Article 38 (3) takes into account the case where the buyer redirects the goods in transit or re-dispatches them to another destination. Redirection in transit occurs when the destination is changed before the goods are received by the buyer. The buyer could re-dispatch the goods without having them unloaded, or re-dispatch them through another carrier.

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Enhanced Production of Fatty Acids via Redirection of Carbon Flux in Marine Microalga Tetraselmis sp.

  • Han, Mi-Ae;Hong, Seong-Joo;Kim, Z-Hun;Cho, Byung-Kwan;Lee, Hookeun;Choi, Hyung-Kyoon;Lee, Choul-Gyun
    • Journal of Microbiology and Biotechnology
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    • v.28 no.2
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    • pp.267-274
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    • 2018
  • Lipids in microalgae are energy-rich compounds and considered as an attractive feedstock for biodiesel production. To redirect carbon flux from competing pathways to the fatty acid synthesis pathway of Tetraselmis sp., we used three types of chemical inhibitors that can block the starch synthesis pathway or photorespiration, under nitrogen-sufficient and nitrogen-deficient conditions. The starch synthesis pathway in chloroplasts and the cytosol can be inhibited by 3-(3,4-dichlorophenyl)-1,1-dimethylurea and 1,2-cyclohexane diamine tetraacetic acid (CDTA), respectively. Degradation of glycine into ammonia during photorespiration was blocked by aminooxyacetate (AOA) to maintain biomass concentration. Inhibition of starch synthesis pathways in the cytosol by CDTA increased fatty acid productivity by 27% under nitrogen deficiency, whereas the blocking of photorespiration in mitochondria by AOA was increased by 35% under nitrogen-sufficient conditions. The results of this study indicate that blocking starch or photorespiration pathways may redirect the carbon flux to fatty acid synthesis.

Load Distribution Method over Multiple Controllers in SDN (SDN에서 컨트롤러 간의 부하 분배 방법)

  • Kyung, Yeunwoong;Hong, Kiwon;Park, Sungho;Park, Jinwoo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.6
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    • pp.1114-1116
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    • 2015
  • In this paper, we propose a load distribution scheme in SDN utilizing load redirection, enabling incoming messages to be migrated to another controller. Specifically, when the capacity of a controller reaches a threshold, the controller makes incoming packets be migrated to a less-loaded controller to prevent them from being blocked. Analytical result shows that our scheme has lower blocking probability than the conventional scheme.

Development and Performance Evaluation of a Sloped Lightshelf Daylighting System (Mock-up model을 이용한 경사형광선반 채광시스템의 개발 및 채광성능평가에 관한 연구)

  • Kim, Jeong-Tai;Kim, Ki-Cheol;Kim, Gon
    • Journal of the Korean Solar Energy Society
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    • v.24 no.2
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    • pp.39-50
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    • 2004
  • One of the challenge for successful daylighting design might be to capture sunlighting that varies in both intensity and position and to deliver the luminous flux into the inner space as deep as possible. Conventional glazing apertures allow daylight in the outer 3.5m of a perimeter spaces. More advanced daylighting technologies can extend this daylighting depth by reflecting sunlight further from the windows within a deep floor area. For this purpose, this study developed light shelves based on performance evaluation with a mock-up model that constructed recently and measured under real sky condition. All these daylighting devices have a customized geometry developed from the solar path at a given latitude and utilize unique reflecting finishing to maximize the amount of redirection and diffusion of the daylight. This paper tells that the best daylighting penetration typically can be expected from using light-colored sloped external shelves.

JsSandbox: A Framework for Analyzing the Behavior of Malicious JavaScript Code using Internal Function Hooking

  • Kim, Hyoung-Chun;Choi, Young-Han;Lee, Dong-Hoon
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.6 no.2
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    • pp.766-783
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    • 2012
  • Recently, many malicious users have attacked web browsers using JavaScript code that can execute dynamic actions within the browsers. By forcing the browser to execute malicious JavaScript code, the attackers can steal personal information stored in the system, allow malware program downloads in the client's system, and so on. In order to reduce damage, malicious web pages must be located prior to general users accessing the infected pages. In this paper, a novel framework (JsSandbox) that can monitor and analyze the behavior of malicious JavaScript code using internal function hooking (IFH) is proposed. IFH is defined as the hooking of all functions in the modules using the debug information and extracting the parameter values. The use of IFH enables the monitoring of functions that API hooking cannot. JsSandbox was implemented based on a debugger engine, and some features were applied to detect and analyze malicious JavaScript code: detection of obfuscation, deobfuscation of the obfuscated string, detection of URLs related to redirection, and detection of exploit codes. Then, the proposed framework was analyzed for specific features, and the results demonstrate that JsSandbox can be applied to the analysis of the behavior of malicious web pages.