• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.3
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• pp.491-501
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• 2019

In side-channel analysis, which exploit physical leakage from a cryptographic device, deep learning based attack has been significantly interested in recent years. However, most of the state-of-the-art methods have been focused on classifying side-channel information in a profiled scenario where attackers can obtain label of training data. In this paper, we propose a new method based on deep learning to improve non-profiling side-channel attack such as Differential Power Analysis and Correlation Power Analysis. The proposed method is a signal preprocessing technique that reduces the noise in a trace by modifying Auto-Encoder framework to the context of side-channel analysis. Previous work on Denoising Auto-Encoder was trained through randomly added noise by an attacker. In this paper, the proposed model trains Auto-Encoder through the noise from real data using the noise-reduced-label. Also, the proposed method permits to perform non-profiled attack by training only a single neural network. We validate the performance of the noise reduction of the proposed method on real traces collected from ChipWhisperer board. We demonstrate that the proposed method outperforms classic preprocessing methods such as Principal Component Analysis and Linear Discriminant Analysis.

• Journal of Navigation and Port Research
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• v.32 no.1
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• pp.89-95
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• 2008

Foreign maritime officers were employed in Korean flag ocean-going merchant ships since the year of 2005. And the number of foreign maritime officers in Korean ship has been rapidly increased, and it approaches 700 recently. The shortage of Korean maritime officers was mainly claimed the reason of employing foreign maritime officers in Korean flag ship. In this paper, we surveyed the number of newly supplied officers from every Korean training institution, the number of officers on-board, on-leave, on-job hunting, and the number of officers leaving their job every year. And then we analysed supply-demand situation of Korean maritime officers for Korean flag ocean-going ships for reasonable decision-making in relation with employing foreign maritime officers.

• Journal of Digital Contents Society
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• v.18 no.6
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• pp.1165-1173
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• 2017

Deep learning method, which is one of the most famous machine learning algorithms, has proven its applicability in various applications and is widely used in digital signal processing. However, it is difficult to apply deep learning technology to IoT devices with limited CPU performance and memory capacity, because a large number of training samples requires a lot of memory and computation time. In particular, if the Arduino with a very small memory capacity of 2K to 8K, is used, there are many limitations in implementing the algorithm. In this paper, we propose a method to optimize the ELM algorithm, which is proved to be accurate and efficient in various fields, on Arduino board. Experiments have shown that multi-class learning is possible up to 15-dimensional data on Arduino UNO with memory capacity of 2KB and possible up to 42-dimensional data on Arduino MEGA with memory capacity of 8KB. To evaluate the experiment, we proved the effectiveness of the proposed algorithm using the data sets generated using gaussian mixture modeling and the public UCI data sets.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.43 no.2
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• pp.140-148
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• 2007

This paper describes on the real-time monitoring of dredging information for grab bucket dredger equipped with winch control sensors and differential global positioning system(DGPS) using electronic chart display and information system(ECDIS). The experiment was carried out at Gwangyang Hang and Gangwon-do Oho-ri on board M/V Kunwoong G-16. ECDIS system monitors consecutively the dredging's position, heading and shooting point of grab bucket in real-time through 3 DGPS attached to the top bridge of the dredger and crane frame. Dredging depth was measured by 2 up/down counter fitted with crane winch of the dredger. The depth and area of dredging in each shooting point of grab bucket are displayed in color band. The efficiency of its operation can be ensured by adjusting the tidal data in real-time and displaying the depth of dredging on the ECDIS monitor. The reliance for verification of dredging operation as well as supervision of dredging process was greatly enhanced by providing three-dimensional map with variation of dredging depth in real time. The results will contribute to establishing the system which can monitor and record the whole dredging operations in real-time as well as verify the result of dredging quantitatively.

• Korean Medical Education Review
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• v.22 no.3
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• pp.146-152
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• 2020

Hospice and palliative care (HPC) education is an essential component of undergraduate medical education. Since February 4th, 2018, withholding and withdrawing life-sustaining treatment at the end of life (EOL) has been permitted in Korea as put forth by law, the "Act on Hospice and Palliative Care and Decisions on Life-Sustaining Treatment for Patients at the End of Life." Therefore, Korean medical schools have faced a challenge in providing comprehensive HPC education in order to better prepare medical students to be competent physicians in fulfilling their role in caring for patients at the EOL. There have been considerable variations in the evolution and organization of HPC education across Korean medical schools for the past 20 years. In 2016, all medical schools taught HPC curriculum as a separate course or integrated courses, with the most frequently taught topics including: delivering bad news, pain management, and the concept of palliative medicine. However, the content, time allocation, learning format, and clinical skills practice training of HPC education have been insufficient, inconsistent, and diverse. For this reason, we propose a HPC curriculum containing seven domains with 60 learning objectives in a course duration of over 20 hours based on the Palliative Education Assessment Tool (PEAT) as standard HPC curriculum. Furthermore, we recommend development of a national curriculum for HPC/EOL care education to be organized by the HPC board and managed under the accreditation criteria of the Korea Institute of Medical Education and Evaluation.

• Korean Security Journal
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• no.2
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• pp.227-258
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• 1999

In a broad sense, ‘After-care SYSTEM’ for discharged prisoners mean legal actions of prisoners who have been released from lawful detention In its narrow sense, mean preventive protection and observation activities under regular guidance and supervision against those released from penal facilities after a certain period of detention Therefore, they should not be viewed as objects of mere concern or social work programs but preventive protection should he provided to them as part of national criminal policy After-care system is in the following two ways, The one is based on individual prisoner's request and consent, which is called 'Voluntary After-care system', The other is the one which is not based in personal request or consent but is based on obligation, which is named 'Compulsory After-care system In Korea, however no Compulsory After-care system is in practice Voluntary After-care system is to be carried out 6 method in the following by existing Probation, Parole Law. (1) offer of board and lodging (2) allowance of Traveling expense (3) allowance of occupation instrument or lending rehabilitation fund (4) training of occupation and vocational guidance (5) self-reliance support for After-care probationer (6) guidance of good deed And then to establish the society without offenders is the ideal of human beings, but criminal acts don't fade away, so in the field of the science of criminology, the importance of correctional system has become greater. The correctional idea has moved from severe punishment to educational rehabilitation for the goal of protecting both offender and security from the threat of crime in to day Some it is required that Compulsory After-care system is most important system in effective measures, and that existing Probation, Parole Law in Korea is renewed into Compulsory After-care system in the future.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.56 no.2
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• pp.147-154
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• 2020

The questionnaire survey was carried out to collect basic data to identify the cause of the risk that did not appear in the current data provided by the fishermen's occupational accidents of the National Federation of Fisheries Cooperative (NFFC) to the onsite specialist, such as a fishing master, chief engineer and fisher in stow net fishing vessel from June to July 2018. The results are as follows. A total of 134 cases were surveyed, including 53 cases in Yeosu, 44 cases in Mokpo, 30 cases in Boryeong and 7 cases in Gunsan. Approximately 60% of the respondents on board the stow net fishing vessel were more than 20 years old, and the boarding experience was seasoned and suitable for the respondents. In the 4M analysis by safety accident factor during fishing work, the mechanical factors included 51 cases (25.0%) of decrepit equipment or poor maintenance and 49 cases (24.0%) of systemic error of fishing equipment. The environmental factors exhibited 71 cases (33.5%) of poor communication by mixed manning of foreign fishermen and 63 cases (29.7%) of poor environment such as heavy weather etc. The human factors showed 78 cases (37.3%) of personnel's carelessness and 45 cases (21.5%) of unskillfulness of operating net and haulers. The management factors exhibited 59 cases (32.1%) of work practice of poor safety precautions and 56 cases (30.4%) of inadequacy of education on hazard factor. The results are expected to contribute to the creation of a safe operating environment for stow net fishery, such as a fisher boarding a stow net fishing vessel, enabling the analysis of major causes of working safety accidents by cause.

• Journal of Practical Engineering Education
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• v.10 no.1
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• pp.49-56
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• 2018

Various types of SW education are being operated by universities for non-major undergraduates. And most of them focus on educating computational thinking. Following this computing education, there is a need for an educational method that implements and evaluates creative computing outcomes for each student. In this paper, we propose a method to realize SW education based on creative computing artifacts. To do this, we propose an educational method for students to implement digital logic circuit devices creatively and design SW algorithms that implement the functions of their devices. The proposed training method teaches a simple LED logic circuit using an Arduino board as an example. Students creatively design and implement two pairs of two input logic circuit devices, and design algorithms that represent patterns of implemented devices in various forms. And they design the functional extension and extended algorithm using the input device. By applying the proposed method, non-major students can gain the concept and necessity of algorithm design through creative computing artifacts.

• Journal of Arbitration Studies
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• v.31 no.1
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• pp.23-54
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• 2021

While maritime arbitration industry has not been prevalent in Korea, Korea ranked fifth in terms of export volume and its shipbuilding industry ranked top globally in shipbuilding order volume in 2020. The discrepancy between the maritime industry's productivity and relative lack of maritime arbitration has had a negative impact on Korea's economic development. To address these problems, this paper i) reviews preceding research, ii) examines the Korean maritime arbitration system's status and analyzes the KCAB's maritime arbitration statistics from 2005-2020, iii) examines major foreign maritime arbitration institutions' status and strategies including LMAA, SMA, SCMA, and HKMAG, and lastly iv) suggests practical ways to promote maritime arbitration in Korea. The Suggestions for promoting maritime arbitration are 1) to prepare and promote various maritime standardized forms for the Korean shipping industry, 2) to insert an arbitration clause in medium and large-size Korean shipping firms' B/L clause, 3) to expand professional maritime manpower training and other infrastructure, and 4) to enhance the predictability of the result of arbitration through maritime arbitral awards or by examining the feasibility of the appeal system against the arbitral award only on a point of law in the future. In conclusion, the success or failure of promoting maritime arbitration in Korea depends on the will, passion, cooperation and practice of the most important key players in maritime arbitration, such as the Asia Pacific Maritime Arbitration Center (APMAC), the Korean Commercial Arbitration Board (KCAB) and the Seoul Maritime Arbitrators Association (SMAA).

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.1D
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• pp.93-106
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• 2008

Domestic construction industry that accounts for nearly 17.5 percent of GDP is one of the major industries that has been leading domestic economy development. However, accumulated negative image such as corruption, fraudulent work and 3D industries shadowing the remarkable achievement is rampant. In order to improve the image for construction industry, this research investigated various cases and activities related to the image enhancement. Cases analyzed include activities of National Center for Construction Education and Research (NCCER) and Construction Industry Training Board (CITB) such as 'Build Your Future', 'Construct My Future', 'Positive Image 2004', and so on. Based on the analysis results, a strategic framework to improve the image of Korean construction industry was proposed. It is envisioned that improved image of the industry will positively affect the growth of the construction industry by attracting more qualified human resources.