• Title/Summary/Keyword: IT security

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Problems and Improvement Directions of Fire Protection Designing and Supervising Jobs (소방 설계·감리업의 문제점 및 개선방향에 관한 연구)

  • Cha, Jong-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.12
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    • pp.8745-8752
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    • 2015
  • Since many accidents have occurred in Korea in these days, many people have lost their health and have been damaged. The damages caused by fires which occur to many buildings where many people always reside takes a substantial share of the total damages. And since the proportions of the domestic fire protection designing/supervising industries are relatively much disregarded compared to other kinds of work, it is in the situation that there are many cases of serious damages because the fire protection equipment didn't exert the proper functions on fire after a building is constructed since the supervision against the poor construction along with the inadequate design. In order to improve such situations, in case of the design industry, the criteria on registration and workforce placement, the scope of operation, the design documents required when requesting the agreement to the construction permits, the responsibilities and authorities about the jobs of the fire protection facility designers must be improved and, in case of supervising industry, the registration criteria, the operation scope and the kinds, methods, targets and criteria of supervision, the criteria on the additional placement of assistant supervisors, the contents and scope of work must be improved, the PQ system and Public Supervision System must be reviewed and the systems for preventing any poor supervision must be improved in order to pursue the security of the people and their properties at the same level as the other kinds of work by preparing for the firm position and foundation of the fire protection design and supervision.

A Light-Weight RFID Distance Bounding Protocol (경량 RFID 경계 결정 프로토콜)

  • Ahn, Hae-Soon;Bu, Ki-Dong;Yoon, Eun-Jun;Nam, In-Gil
    • The KIPS Transactions:PartC
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    • v.17C no.4
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    • pp.307-314
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    • 2010
  • Recently, it is proved that contactless smart-card based RFID tags, which is used for proximity authentication, are vulnerable to relay attacks with various location-based attacks such as distance fraud, mafia fraud and terrorist fraud attacks. Moreover, distance bounding protocols have been researched to prevent these relay attacks that can measure the message transmitted round-trip time between the reader and the tag. In 2005, Hancke and Kuhn first proposed an RFID distance bounding protocol based on secure hash function. However, the Hancke-Kuhn protocol cannot completely prevent the relay attacks because an adversary has (3/4)$^n$ attack success probability. Thus, this paper proposes a new distance-bounding protocol for light-weight RFID systems that can reduce to (5/8)$^n$ for the adversary's attack success probability. As a result, the proposed protocol not only can provide high-space efficient based on a secure hash function and XOR operation, but also can provide strong security against the relay attacks because the adversary's attack success probability is optimized to (5/8)$^n$.

Relation of Eating Speed and Metabolic syndrome in Fire fighters (소방공무원의 식사속도와 대사증후군에 관한 연구)

  • Lee, Chang-Sub;Kim, Jee-Hee;Bang, Sung-Hwan
    • Journal of the Korea Convergence Society
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    • v.5 no.4
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    • pp.113-119
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    • 2014
  • Fire fighters should eat their meal very fast in order to arrive in the emergency scene on time. The purpose of the study is to investigate the influence of eating speed on the health of the fire fighters. The subjects were fire fighters, National maritime police, soldiers, public officials, university students, and company employees. The fire fighters had the shortest eating time of 8 minutes 29 seconds, and eating speed of National maritime police was 8 minutes 33.17 seconds, and public officials had 12 minutes 49.33 seconds. Soldiers had 10 minutes 15 seconds, university students had 14 minutes 15 seconds, and company employees had 16 minutes 51 seconds in eating their meals. The previous studies said that eating speed had influenced on the metabolic syndrome and the survey on the American fire fighters showed that the fire fighters gained 7.7 pounds during the past 8 years. Through this study, it is necessary to implement the right eating habit that is able to slow down the eating speed in the Korean fire fighters. The Fire Academy should provide the right eating habit education program to the fire fighters.

A Study on Practice of Protective Actions for Medical Information - A comparison between hospital administrators and occupational therapists - (의료정보 보호행동 실천에 관한 연구 - 병원행정관리자와 작업치료사를 비교 -)

  • Kweon, Eun-Ha
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.12
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    • pp.1959-1970
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    • 2013
  • Attempts were made in this paper to compare the practice of protective actions for information of patients' medical treatment between hospital administrators who do not make direct contact with patients and occupational therapists who usually do. The comparison between jobs in charge showed that occupational therapists did not practice much protective actions for information of patients' medical treatment ($3.52{\pm}.809$) compared to hospital administrators ($3.92{\pm}.724$), even though the former had received regular education about protection, management and supervision of patients' medical information more often ($3.17{\pm}1.129$) than the latter ($3.16{\pm}1.037$). In spite of the fact that occupational therapists were exposed frequently to the danger of revealing medical information in the process of their job performance through talks and communications with patients, they displayed relatively little concern for and awareness of keeping information of medical treatment from being leaked by them. It is thus suggested to promote awareness of medical staff to protect medical information by means of flexible educational system for each occupational group, periodical monitoring, continuing public relation, training and quality control for protection of medical information, as well as routine self-examination of such practice.

Necessity Evaluation about the Outside Dining Room Accommodation to the University Meal Service (대학교 급식의 외부음식점 도입에 대한 필요성 평가)

  • Han, Kyung-Su;Lee, Yun-Jung
    • Culinary science and hospitality research
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    • v.15 no.2
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    • pp.1-16
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    • 2009
  • The purpose of the study of the book is aimed for basic document security to show necessity for the outside restaurant accommodation to the university meal service and I grasp the university meal service use action of the university student and a desire with this purpose and show it and am going to fine an article and the basics document which are necessary for the market for rationalization of the management of the university meal service. As for the reason why students like fast food to be able to choose outside dining room introduction at the part of an innovative image strategy of the university meal service. Food is serve of early and low price. The big problems of the university meal service is bad taste, high price, low service. Price satisfaction is low in the quality of the university meal service in comparison with the outside dining room. The university students who liked Korea food and Hamburger at time of the outside dining room introduction evaluated the quality of the university meal service. Therefore the outside dining room accommodation is necessary for the university meal service development also the image improvement of the university meal service and improvement of the quality and suitable price rage.

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A Study on Multi-modal Near-IR Face and Iris Recognition on Mobile Phones (휴대폰 환경에서의 근적외선 얼굴 및 홍채 다중 인식 연구)

  • Park, Kang-Ryoung;Han, Song-Yi;Kang, Byung-Jun;Park, So-Young
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.45 no.2
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    • pp.1-9
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    • 2008
  • As the security requirements of mobile phones have been increasing, there have been extensive researches using one biometric feature (e.g., an iris, a fingerprint, or a face image) for authentication. Due to the limitation of uni-modal biometrics, we propose a method that combines face and iris images in order to improve accuracy in mobile environments. This paper presents four advantages and contributions over previous research. First, in order to capture both face and iris image at fast speed and simultaneously, we use a built-in conventional mega pixel camera in mobile phone, which is revised to capture the NIR (Near-InfraRed) face and iris image. Second, in order to increase the authentication accuracy of face and iris, we propose a score level fusion method based on SVM (Support Vector Machine). Third, to reduce the classification complexities of SVM and intra-variation of face and iris data, we normalize the input face and iris data, respectively. For face, a NIR illuminator and NIR passing filter on camera are used to reduce the illumination variance caused by environmental visible lighting and the consequent saturated region in face by the NIR illuminator is normalized by low processing logarithmic algorithm considering mobile phone. For iris, image transform into polar coordinate and iris code shifting are used for obtaining robust identification accuracy irrespective of image capturing condition. Fourth, to increase the processing speed on mobile phone, we use integer based face and iris authentication algorithms. Experimental results were tested with face and iris images by mega-pixel camera of mobile phone. It showed that the authentication accuracy using SVM was better than those of uni-modal (face or iris), SUM, MAX, NIN and weighted SUM rules.

Education and Application for low Fertility.Aged Society in Home Economics Education (가정교과에서의 저출산.고령사회를 위한 교육과 실천 사례)

  • Jun, Mi-Kyung;Oh, Kyung-Seon
    • Journal of Korean Home Economics Education Association
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    • v.22 no.3
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    • pp.95-116
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    • 2010
  • The purpose of this study is to explore the role of Home Economics Education for low fertility Aged Society. Hence home economics educational contents for low fertility Aged Society was estsblished extracting the contents from both Revised 2007 Home Economics Curriculum and government. policy for low fertility Aged Society. Also home economics educational contents for low fertility Aged Society("Home Economics Class for both parents and Children") implemented in Healthy Family Support Center. The main results of the study are as follows. Firstly, Home Economics Education for low fertility Aged Society should be emphasized with the contents such as marriage of one's choice, family life reinforcement, healthy family culture and neighborhood living together. Secondly, the goal of home economics education is very similar to the action plans of Saeromaji Project 2010 which are 'social responsibility reinforcement for marriage, birth and child rearing', 'balancing family and work', 'family-friendly culture' and 'security for the aged with health and care'. It has also much in common with the project plans by Seoul Metropolitan Office of Education 'family-friendly culture and filial duty education reinforcement', 'school education reinforcement regarding Low Fertility-Aged Society' and 'values education reinforcement for gender equality society'. Thirdly, "Home Economics Class for both parents and Children" applied in Healthy Family Support Center in Jung-gu, Seoul. This ensures home economic education can play a leading role in the social education filed.

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A study on the current status of oriental medical care services in health centers and implications for its expansion (보건소장의 한방진료에 대한 태도와 관련 요인 분석)

  • 류규수;김문수
    • Korean Journal of Health Education and Promotion
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    • v.18 no.2
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    • pp.157-168
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    • 2001
  • Currently the oriental medical care services in the health centers is getting popularity because of their unique aspects which western medicine can not cover. This study was conducted to speculate the current status of oriental medical care services in health centers and possibility of how to effectively provide the oriental medical care services(or traditional medical care services) in health centers. For the study, the survey questionnaires were distributed to all 269 health centers and 138(51.3%) of them were collected. Eight of the collected were inadequate for the analysis and 130 of 269 questionnaires were finally chosen for the study. The SPSS/PC WIN 8.0 was used for the statistical analysis. The results are as follows. First, 91 out of 130 sample health centers(70%) are providing oriental medical care services. The results show that the willingness of the directors and the public awareness in community are the most important factors to provide oriental medical care services in health centers. In contrast, the lack of cooperative efforts between western and oriental medical doctors and the lack of government supports are considered as factors that intervene the oriental medical care services in health centers. About 80% of the sample health centers respond that the government supports is needed for oriental medical care services in health centers. Second, it was asked to the directors of 39 health centers which do not provide oriental medical care services regarding their future plan to include the services. About 70% of health centers respond that no plan is available now. They acknowledge that the demand on the services is the most important factor to consider the oriental services as their future medical services. Third, 69.2% of the oriental medical doctors in health centers are public health doctor. 95.6% of the sample health centers have space for the oriental medical care services in their facilities and some health centers provide the services through the private clinics nearby facilities. Finally, the surveyors consider both budgetary constraints and difficulty in recruiting doctors as barriers for the effective oriental medical care services in health centers. Finally, t-test and LSD were employed to find out the difference among several groups. The analysis shows statistically significant difference among groups about their recognition on health care policy, health care system, and effectiveness of oriental medical care services. To be conclude, the study shows the necessity of oriental medical care services in health centers. To do so, the government supports, cooperative efforts between oriental and western medical doctors, and providing job security for doctors should proceed to provide effective oriental medical care services in health centers.

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Relations between Physical and Mechanical Properties of Core Samples from the Bukpyeong and Pohang Basins (북평분지와 포항분지 시추코어의 물리적 성질과 역학적 성질간의 관계)

  • Kim, Hyunjin;Song, Insun;Chang, Chandong;Lee, Hikweon;Kim, Taehee
    • The Journal of Engineering Geology
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    • v.23 no.4
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    • pp.329-340
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    • 2013
  • A geologic survey of the Bukpyeong and Pohang basins, as candidate basins for the geological storage of $CO_2$, was performed to evaluate storage capacity and security. To analyze the mechanical stability of the storage reservoir and cap rocks, we measured the porosity, seismic velocity, uniaxial strength, internal frictional angle, and Young's modulus of core samples recovered from the two basins. It is costly and sometimes impossible to conduct tests over the entire range of drill holes, and continuous logging data do not yield the mechanical parameters directly. In this study, to derive the mechanical properties of geologic formations from the geophysical logging data, we determined the empirical relations between the physical properties (seismic velocity, porosity, and dynamic modulus) and the mechanical properties (uniaxial strength, internal friction angle) of the core samples. From the comparison with our core test data, the best fits to the two basins were selected from the relations suggested in previous studies. The relations between uniaxial strength, Young's modulus, and porosity of samples from the Bukpyeong and Pohang basins are more consistent with certain rock types than with the locality of the basins. The relations between the physical and mechanical properties were used to estimate the mechanical rock properties of geologic formations from seismic logging data. We expect that the mechanical properties could also be used as input data for a modeling study to understand the mechanical instability of rock formations prior to $CO_2$ injection.

An Empirical Study on the Flow Experience Affected by Characteristics of Mobile Internet (모바일 인터넷 특성이 플로우 경험에 미치는 영향에 관한 연구)

  • Yoo, Sang-Jin;Choi, Eun-Bin;Kim, Hyo-Jung
    • Information Systems Review
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    • v.8 no.1
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    • pp.125-139
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    • 2006
  • Recently, as mobile internet users grow rapidly, mobile internet companies are experiencing a fierce competition to capture new customers. Under this business environment, they try to identify factors that make people use mobile internet in order to satisfy customers by providing better and diversified services. There has been enormous effort to analyze customers' behavior in choose and use mobile internet services. However, there is no one best methodology to identify factors to attract customers yet. Thus, the study applied the flow construct proposed by Csikszentmihalyi(1977) and expanded by Hoffman and Novak(1996) to identify environmental factors of internet which has impact on users' mobile internet usage. To implement the study, the following activities have been done: literature reviews on service acceptance model and flow structure, questionnaire survey, suggestion of the flow model on mobile internet, and hypothesis test. For the study, 242 out of 307 samples collected were statistically analyzed using SPSS 10.0, AMOS 4.0 statistics package. The findings of this study are as follows: First, mobile internet environment factors influencing on challenge of flow antecedent were media characteristics(use of convenience, transmission quality), contents characteristics(uniqueness, timeliness, simplicity). Second, mobile internet environment factors influencing on skill of flow antecedent were contents(uniqueness, timeliness, simplicity), charge(definiteness and diversity of charge), usage(security, instant connectivity). Third, challenge of flow antecedent had a significant effect on flow of mobile internet usage. But it was not statistically significant that skill has an influence on flow. This study discovered the relationship between mobile internet environment factors(media characteristics, contents characteristics, charge characteristics, usage characteristics) and flow experience of mobile internet users which would be a valuable insight for marketing strategies. Results shows that challenge of flow antecedent have a significant impact on flow experience in mobile internet environment. Additional, media characteristics, contents characteristics of mobile internet environment factors is positively correlated with challenge of flow antecedent. In other words, mobile internet companies should provide customers with diverse service and take a challenging attitude to get customers show aggressive attitude in mobile internet usage.