• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.469-472
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• 2008

In general, structures in service gradually lose original performance according to time due to initial defects in design and construction, or exposure to unfavorable external conditions such as repeated loading or deteriorating environment, and in extreme cases, may collapse in large disaster. Therefore, in order to maintain the serviceability of structures at optimal level, advanced structure measuring system which can inform optimal time point and method of maintenance is required in addition to accurate prediction of residual life the structure by periodic inspection. To guarantee the safety level of bridge structure and to prevent from disaster, the integration of safety network for bridge structures are needed. Therefore in this study, to enhance the effectiveness of safety network for bridge, the connection methodologies between safety network and pre-installed bridge monitoring system are investigated.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.489-492
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• 2008

Nowadays in order to estimate safety diagnosis of bridge, a lot of data like static and dynamic displacement, accelerometer, wind velocity and so on are demanded. When it comes to measure these data, cabled sensor is essential equipment. But cabled sensors have also inefficient factors. From this point of view, considering practical aspects of using these expensive equipments which have been used to examine safety diagnosis, measuring by cabled sensors is restrictive in some respect. Recently to improve theses problems, Wireless sensor system was introduced. But this system can't perform intelligent reaction because database of this system is just based on internet. In this paper, the intelligent bridge safety management model which can be installed easily, measured at all times and dealing intelligently with various situations is developed to improve these problems.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.443-445
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• 2008

Determination of allowable overtopping rate for coastal structure is a key point to determine the application of background of coastal structure while considering safety and economic efficiency. Thus, the accurate estimation of overtopping rate against coastal structure is essential. In general, estimation of overtopping against the coastal structure is based on an empirical formula or hydraulic experiment. In this study, we investigate the behavior of overtopping for rubble mound coastal structure with rubble armor stone and wave dissipating block using hydraulics experiment, and domestic or foreign design standard.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.699-702
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• 2008

In this study, it has observed the precipitation and stage data at each point every ten minutes for gaining the sustainable, reliable and high-quality hydrological data through operating the experimental watershed in mountainous areas such as Gyecheon located in the upstream of Seom river that is the tributary of Nam-Han river. And it has regularly surveyed the runoff and verified the reliability of data using the uncertainty analysis at the gaging station. So, this study has developed the stage-discharge curve(rating curve) and these results are expected to be used as fundamental data for analyzing the circulation of water through surveying evapotranspiration, soil moisture and level of groundwater in watershed.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.325-328
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• 2008

After insufficient road facilities are expanded, it is more important to maintain performance of road facilities the time according to passing. When the road facilities are maintained optimally through proper maintenance, the total amount of investment can be minimized and national competitiveness is improved. Individual maintenance research of road facilities such as PMS or BMS was in progress until currently, but it is difficult to joint ownership and share information between systems, and it is impossible to use as the decision-making. Therefore, Asset Management System for road facilities is enforced to solve the inefficiency of existing systems, maintenance the road facilities systematically under the limited budget and get the maximum benefits against the cost from the view point of long-term. In this paper, the concept of Asset Management System explained, and research plan from KICT in order to introduce the Asset Management System of road facilities from 2008 hereafter for 5 years accounted.

• Proceedings of the Korean Society for Quality Management Conference
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• 2006.04a
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• pp.242-248
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• 2006

HACCP(Hazard Analysis Critical Control Point)은 식품의 원료, 제조가공 및 유통 등 전 과정에서 안전 위해물질이 해당제품에 혼입되거나 오염되는 것을 사전에 예방 감시하기 위한 각 과정을 중점적으로 관리하는 기준으로 1995년 이후 식품위생법 규정에 신설되었다. 국내외에서 앞으로 많은 기업은 이러한 청결기준을 만족시키지 못할 경우 무한 경쟁에서 이기기 힘들다. 이를 해결하기 위한 다양한 방법 가운데 품질혁신 방법으로 많이 알려진 Six Sigma 방법론을 이용하여 프로젝트를 시행함으로써 HACCP을 획득 할 수 있는 방법에 대하여 연구하였다. 본 논문에서는 Six Sigma 로드맵과 HACCP의 프로세스를 결합하여 새로운 로드맵을 제시하였다.

• Journal of the korean veterinary medical association
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• v.39 no.12
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• pp.1137-1147
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• 2003

위해요소중점관리제도(Hazard Analysis and Critical Control Point System : HACCP)는 식품의 안전성 보증 측면에서 가장 효율적이고 과학적인 위생관리기법으로 알려져 세계 각국에서 법적으로 도입하여 운용하고 있으며, 국제식품규격위원회(Codex)에서도 식품의 제조시 적용할 국제기준으로 채택하고 있다. 국내 도축장에서는 축산물 가공처리법령에 의거 2000. 7. 1부터 2003. 7. 1까지 4개년으로 나누어 도축장의 도축규모에 따라 연차적으로 의무적으로 시행되어 현재는 모든 소$\cdot$돼지$\cdot$닭 도축장에 동 제도가 시행되어야 한다. 그간 정부는 HACCP이 도축장에 조기에 구축될 수 있도록 다양한 정책을 시행하여 왔고, 그 결과 상당한 성과를 거두었다. 국내도축장에서의 HACCP 시행은 초기단계임을 감안하여 볼 때 앞으로도 이러한 역할은 그 내용은 약간 다르겠으며 상당기간 지속될 것으로 보인다. 국내 도축장에서의 HACCP 시행은 식육의 안전성 보증 측면에서 매우 큰 긍정적 역할을 하였으며 식육에 대한 소비자의 신뢰도를 높이는데도 큰 기여를 하였다.

• Journal of the Korean Society of Industry Convergence
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• v.12 no.4
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• pp.203-208
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• 2009

Lacks of harmony of a person and machine according to productivity elevation pursuit is happened by enterprise common problem in Global competition age and productivity loss is caused being connected to worker's burden work. Burden work in PET bottle production Process which are arrangement, Packing, interior inspection is analyzed by Ergonomic analysis technique. REBA estimation point(10~11 points) means the high step of hazard on worker's burden. It is immediately required the improvement on the process. This thesis show you the improving methods like package, examination justice.

• Food Science and Biotechnology
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• v.15 no.4
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• pp.499-505
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• 2006

Clostridium botulinum spores are widely distributed in nature. Type A and proteolytic type B bacteria produce heat-resistant spores that are primarily involved in most of the food-borne botulism outbreaks associated with low-acid canned foods. Food-borne botulism results from the consumption of food in which C. botulinum has grown and produced neurotoxin. Growth and toxin production of type A and proteolytic type B in canned foods can be prevented by the use of thermal sterilization alone or in combination with salt and nitrite. The hazardousness of C. botulinum in low-acid canned foods can also be reduced by preventing post-process contamination and introducing hazard analysis and critical control point (HACCP) practices during production. Effectiveness of non-thermal technologies such as high pressure processing with elevated process temperatures on inactivation of spores of C. botulinum will be discussed.

• Transactions of the Korean hydrogen and new energy society
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• v.30 no.1
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• pp.29-34
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• 2019

Safety of hydrogen handling facilities is needed as supply of hydrogen cars has been expanded recently. In this study, the adequacy of safety regulations of hydrogen handling facilities and the risk of damage with hydrogen leakage were studied. The range of explosion hazard location of the hydrogen filling plant was investigated using the computational fluid dynamics (CFD) method, Explosive hazardous area is influenced by leakage type, hole size and sectional area. When the conditions of KS standard are applied, range explosive hazardous area is expanded 7.05 m, maximum. It is about 7 times larger than exceptional standard of hydrogen station. Meanwhile, distance from leakage point to 25% LEL of hydrogen is investigated 1.6 m. Considering the shape of charging hose, regulation of hydrogen station is appropriate.