• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.727-728
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• 2011

• Review of KIISC
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• v.32 no.5
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• pp.27-34
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• 2022

2021년 5월 12일, 미(美) 바이든 행정부는 소프트웨어 공급망 보안 강화를 위한 대통령 행정명령 14028을 발표하였다. 이후 연방정부에 납품하는 핵심 소프트웨어에 대해 SBOM(Software bill of materials) 제출이 의무화됨에 따라, 2021년 하반기부터 소프트웨어 공급망 관리를 위한 다양한 솔루션이 빠르게 개발되고 있다. 하지만 활발한 연구 및 산업화가 이루어지고 있는 글로벌 정세와 달리, 국내 산업은 상대적으로 더딘 실정이다. 이에 따라 본 논문에서는 소프트웨어 공급망 및 SBOM 관리를 제공하고 있는 글로벌 기업과 해당 솔루션에 대해 소개한다. 향후 국내 시장도 소프트웨어 공급망 보안 강화를 위해 SBOM 관리 의무화가 예상되는바 관련 솔루션의 개발 연구가 요구된다.

• Review of KIISC
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• v.32 no.5
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• pp.53-66
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• 2022

최근 몇 년 동안 엄청난 양의 데이터 혁신이 진행되어왔고, 그에 따라 소프트웨어 개발의 편리성을 위해 오픈소스를 사용하는 경우가 많아졌다. 이로 인해 소프트웨어 생산성 측면에서는 많은 도움이 되었지만, 보안 관점에서는 많은 문제를 야기했다. 이러한 OSS 사용에 따른 위험을 줄이고자 OSS 추적성을 위한 도구를 사용하는 방법이 지속적으로 개발되었지만, 아직까지도 OSS 사용에 따른 위험은 증가하고 있다. 이에 본 논문은 OSS 추적성의 보완을 위한 SBOM(Software Bill of Materials)의 정의와 현재 국외 SBOM 추진 동향에 대해 소개하고자 한다.

• Journal of Navigation and Port Research
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• v.32 no.1
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• pp.97-102
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• 2008

According to the trend of a large-sized vessel and a industrial carrier, the role of the independent contractors such as transport terminal operators, stevedores and warehousemen is increasing the base of cargo distribution that include the function of storage, warehousing, loading, unloading, trimming, dunnaging and lashing. But the common law doctrine of privity of contract has been a perennial source of difficulty for litigants seeking to enforce rights and obligations arising under a bill of lading contract. When carriage contract is negotiated, the concerned parties will be aware that some portion of obligations arising from the contract will be performed by the independent contractors engaged to carry out a particular function. It is reasonable for the independent contractors to be allowed the benefit of the carrier under the contract of carriage. As a part of the alleviating measures for the liability of independent contractors has been allowed various schemes, specially including 'Himalaya Clause'. Therefore, this study performed the validity of 'Himalaya Clause' by means of a recent judicial precedent by the Supreme Court and analyzed the rights of third parties, specially transport terminal operators, under the contract of carriage.

• KIEAE Journal
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• v.17 no.2
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• pp.29-34
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• 2017

Purpose: Recently, significant heat loss through the window takes place in buildings. Nevertheless, there exists little literature concerning the exterior horizontal shading devices and the design criteria are not clearly settled yet. Applying the exterior horizontal shading devices is more efficient as compared to the interior shading devices in that solar radiation can be directly blocked before passing through the window or the envelope. The purpose of this study is to reduce the internal load by designing the exterior horizontal shading devices and verify the degree of reduction in energy consumption. Method: This study aims to reduce energy consumption in cooling and heating through proposing proper length and shape of the exterior horizontal shading devices in public buildings. In the process, actual energy data and the Design Builder simulation program are utilized. In addition, economic aspect is considered to figure out the optimal length of the exterior horizontal shading devices that maximizes efficiency. Result: As a result, the proper length and shape of the exterior horizontal shading devices are provided as follows: 1) Energy consumption in cooling and heating is minimized when the exterior horizontal shading devices are designed as 0.5m*2. 2) Electricity bill is the lowest when the exterior horizontal shading devices are designed as 3.3m*2. The gap between maximum and minimum electricity bill is about 7.8~14%.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1999.12a
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• pp.411-419
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• 1999

EBPP는 소비자, 사업자간에 고지서 발송, 접수 및 지불을 네트워크를 통하여 전자적으로 처리하는데 필요한 환경을 의미하며, 인터넷을 기반으로 하여 전자우편 혹은 웹 페이지를 통하여 고지서를 처리한다 EBPP 시스템은 크게 소비자, 사업자 그리고 은행간의 거래로 이루어 지지만 컴퓨터 및 인터넷의 보급의 한계 등의 문제로 현재로서 모든 고지서를 전자적으로 처리하는 것은 무리가 따른다. 그럼에도 불구하고 EBPP 시스템은 1) 경쟁력 확보를 위해 기업/금융 기관들이 인터넷을 통한 고품질 서비스 개발에 주력하는 추세이고, 2) 고객과의 보다 긴밀한 관계 유지를 위한 수단 제공하며, 3) 인터넷 등 온라인 통신 인구가 급격한 증가(2701년에 전체 인구의 약 50%가 활용할 것으로 전망)하고 있으며,4) 소비자를게 보다 편리한 지불방법 제시해주며, 5) 또 다른 마케팅 매체로 활용 가능하므로 앞으로의 전망이 매우 밝다. EBPP시스템은 크게 금융기관, 기업, 소비자 부분으로 구성되며, 소비자와 접촉 방법으로는 대표적으로 Web과 전자우편을 생각할 수 있으며, EBPP 시스템을 구축하기 위해서는 기본적으로 상접 혹은 기업에서 청구에 필요한 정보를 등록시키는 통합 청구서버(Bill consolidation server), 소비자에게 청구 가능한 정보를 갖고있는 청구 제시서버 (Bill presentment server), 소비자의 지불요청에 따라 은행으로부터 지불을 요구하는 지불서버(Payment gateway) 등이 필요하며, 이들 각각의 서버들의 구성 요소들은 제공하는 서비스에 따라 달라질 수 있다. 통합 청구서버에서 청구 제시서버로 전송되는 청구 건은 통상적으로 실시간 처리되는 것이 아니라 통합 청구서버에 존재하는 Spool DB에 저장되어 그 양이 일정한도를 넘어서면 자동 전송되도록 하여, 망의 할용도를 높이는 역할을 수행한다. 청구 제시서버의 DB에 등록된 청구 건은 인터넷을 통해 소비자에게 청구되며, 소비자에게 전송 되는 청구서는 사용자DB를 참조하여 사용자가 미리 정의한 원하는 형태로 변환되어 전달되며, 필요시 암호화 과정을 거치는 것이 가능해야 한다. 전송된 청구서는 전자우편의 경우, 암호해독이 가능한 전용 브라우저를 통해 열람 되며, 이는 다시 전용 브라우저를 통해 지불인증이 승인되어 청구 제시서버에게 전송된다. EBPP 시스템의 제어 흐름은 크게 기업이 청구 정보를 소비자에게 제시하는 흐름과 소비자의 지불 승인으로 인해 기업이 은행에 지불을 요구하는 흐름으로 구분할 수 있다. 본 논문에서는 통합 청구서버 및 정구 제시서버의 역할 및 구성 요소들에 대해 서술하고, EBPP 시스템과 연동하여야 하는 메일 서버와의 상호 작용에 대해 서술할 것이다. 본 시스템을 아직 구현이 되지 않은 관계로 시스템의 성능 등의 수치적 결과를 제시할 수 없는 상태다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.13 no.2
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• pp.159-168
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• 2020

Current residential electricity rates, which are charged regardless of consumption patterns, have a problem of restricting consumer choice. In order to improve the problem, the Korea government started a demonstration project based on Time-Of-Use(TOU) pricing from September 2019. However, the analysis of its effect is still limited. This study analyzed the changes and limitations of TOU pricing compared to the current progressive pricing. The result showed that the high rate payer's bill decreased by up to 33.8 % while the low rate payer's bill increased by up to 117.7 %. This can lead to the problem of accepting electricity rates from a social point of view. In this study, TOU pricing based on progressive pricing was proposed to overcome the problem. The results presented the rate changes depending on the power consumption patterns while decreasing the average rate change from 32 % to -1.9 %. It means that the proposed pricing can support the TOU effect while maintaining the framework of the existing progressive pricing.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.67 no.10
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• pp.1278-1285
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• 2018

For saving electricity bill, energy storage system(ESS) is being installed in factories, public building and commercial building with a Time-of-Use(TOU) tariff which consists of demand charge(KRW/kW) and energy charge(KRW/kWh). However, both of peak reduction and ESS special tariff are not considered in an analysis of initial cost payback period(ICPP) on ESS. Since it is difficult to reflect base rate by an amount of uncertain peak demand reduction during mid-peak and on-peak periods in the future days. Therefore, the ICPP on ESS can be increased. Based on this background, this paper presents the advanced analysis method for the ICPP on ESS. In the proposed algorithm, the representative days of monthly electricity consumption pattern for the amount of peak reduction can be found by the k­means clustering algorithm. Moreover, the total expected energy costs of representative days are minimized by optimal daily ESS operation considering both peak reduction and the special tariff through a mixed-integer linear programming(MILP). And then, the amount of peak reduction becomes a value that the sum of the expected energy costs for 12 months is maximum. The annual benefit cost is decided by the amount of annual peak reduction. Two simulation cases are considered in this study, which one only considers the special tariff and another considers both of the special tariff and amount of peak reduction. The ICPP in the proposed method is shortened by 18 months compared to the conventional method.

• Journal of Korean Physical Therapy Science
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• v.22 no.1
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• pp.19-27
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• 2015

Purpose : The purpose of this study is to check the current status of accessability to rehabilitation therapy in local areas and to review how to improve the accessability. In fact, first, it is very hard for patients to find out a local medical center with rehabilitation therapy capability. Moreover they needs to wait long time to get a treatment they need, because of lack of nearby rehabilitation centers. The best way to enhance the accessability to the rehabilitation therapy service is to allow therapists to set up rehabilitation centers in local areas on their own, physically independent from medical doctors. Basically, the current law does not prohibit therapists' own sole practice. However, it needs to be amended by inserting an explicit legal basis on the setting-up process. If it is legally permissible for the therapists to set up rehabilitation centers to perform a rehabilitation treatment with referrals from of medical doctors (though physically independent from the doctors), it would result in the increase of profits for the doctors and at the same time raise therapists' freedom of occupation, a constitutional right. Furthermore, with their own places to practice, therapists will have to compete with other therapists, that would raise the quality of their treatments, which will in turn benefit patients ultimately. A proposed bill of amendments to the Act on Medical Technicians and etc. is pending for review at the National Assembly. I look forward to vigorous discussion on the bill based on this article, and resulting in revision of the law for the benefits of patients.

• Journal of Korea Port Economic Association
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• v.29 no.1
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• pp.47-66
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• 2013

This article reviews some problems arises from signing by the master bills of lading issued on time chartered ship. The underlying purpose of time charters is generally for the charterers to have the services of the vessel in order to engage in the business of carriage of goods by sea, a business which is likely to involve the issue of bills of lading to shippers. Charterer under the charter have a right to issue B/L, thereby the master must sign bill of lading as presented, but may not vary the contract. Bills of lading signed by, or on behalf of the master, impose contractual liabilities upon the shipowner. Charterer have no right to ask the master to sign a bill of lading in any way deviating from the charterparty. If the shipowner suffers loss as a result of the master obeying any order about employment or agency, he will be entitled to an indemnity from the charterer. The master may refuse to sign bills of lading which contain some discrepancy such as a false statement and manifestly inconsistent with the requirements of the charterparty.