• Journal of the Korea Society of Computer and Information
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• v.6 no.4
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• pp.68-73
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• 2001

MPLS(Multi protocol Label Switching) is standard skill for added to speed and control the Network Traffic. MPLS concerned the routing protocol to relative Pack line, Each Pack composed label and node, saved the time to seek the address of node. MPLS worked IP, ATM and Network protocol of flame rely. MPLS is Network OSI suport model, 2Layer send to most of Packinsted of 3Layer Switching. MPLS is added speed Traffic of QoS and effective controled the Network.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.5 no.1
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• pp.65-84
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• 1995

The information security is needed to guarantee the safety and the confidence to users in open system. This paper analyzes transport layer security protocol and security association protocol, which are standards proposed by ISO/IEC, to provide a security service in the transport layer and particulars, not in the standard, are defined for development. And this paper suggests a development model and develps security system based upon the suggested model. The ONP of USL is used as the development environment.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.4 no.2
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• pp.71-88
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• 1994

메세지 전달시스템을 이용한 원거리 정보전달이 일반화되고 있다. X.400 메세지처리시스템 및 OSI 보안구조는 보안기능 및 서비스에 대한 표준을 개념적으로 정의하고 있으나, 메세지 전달시스템이 제공하는 보안서비스에 의존하여 중요정보를 송,수신하는 유저는 자신의 보안정책이 준수되기를 원한다. 이를 위해, 메세지 전달시스템과 유저의 독립적 또는 중첩된 2개의 다중 보안정책이 메세지 서버에서 준수되어야 한다. 메세지의 전송 및 프로세싱은 주체와 객체가 지닌 보안레이블이 강제적, 임의적, 마킹, 특권제어의 다중 보안정책에 부합될 때 액세스가 허용된다. 제안된 알고리즘이 메세지 서버에서 보안메카니즘으로 동작될 때, OSI 보안구조와 유저가 요구하는 보안요구조건이 만족됨으로서, 유저의 메세지가 안전하게 전송될 수 있다.

• Journal of Adhesion and Interface
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• v.5 no.2
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• pp.40-50
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• 2004

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.27 no.3
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• pp.191-204
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• 2014

Objective : The purpose of this study is to investigate the effect of Gagamchengyoung-tang($Ji\bar{a}ji\check{a}nq\bar{i}ngy\acute{i}ng-t\bar{a}ng$) for atopic dermatitis patients diagnosed as the febrile tendency. Method : This case study was done on 6 atopic patients with febrile tendency who have visited Korean Medicine Clinic from 2013.08.01. to 2014.04.30.. Gagamchengyoung-tang($Ji\bar{a}ji\check{a}nq\bar{i}ngy\acute{i}ng-t\bar{a}ng$) was prescribed to all 6 patients and evaluated the symptom change through photographs and questionnaire. Objective SCORAD Index(OSI) was used to evaluate the objective symptom and VAS was used to evaluate the subjective change. Results & Conclusion : The Objective SCORAD index and VAS were decreased in all patients. The average OSI reduction score was 26.3. Most symptoms of 6 patients were improved. Gagamchengyoung-tang ($Ji\bar{a}ji\check{a}nq\bar{i}ngy\acute{i}ng-t\bar{a}ng$) can be effective in patients who were diagnosed as febrile tendency.

• Journal of Navigation and Port Research
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• v.38 no.2
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• pp.163-170
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• 2014

Domestic offshore business is oriented toward building drill-ships, FPSOs(Floating Production Storage and Off loading). But the equipments needed for offshore platforms are not so developed in Korea because the equipments can not be verified in Korean territory where the offshore platforms are not stationed. This study aims at finding some methods on entering into OSI for the maintenance and disassembly of fixed offshore platforms. Slack model is adopted to find out how slack assets could play a role in penetrating foreign markets. Firstly, entry into the South East Asian market is recommended. Secondly, forming a consortium is suggested by which taking part in offshore market can be easier. Finally, strategic plans for obtaining the technology for ship building equipments are needed as well as government support.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.5
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• pp.2759-2763
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• 2013

Background: Impaired oxidative/antioxidative status plays an important role in the pathogenesis of many diseases like cancer. The aim of this study was to evaluate the levels of the novel marker ischemia modified albumin (IMA) and albumin adjusted-IMA (Adj-IMA) in patients with bladder cancer (BC) as well as its association with total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI). Materials and Methods: Forty male patients with BC (mean age, $67.4{\pm}12$ years) and forty age-sex matched healthy persons (mean age $56.0{\pm}1.7$ years) were included in this study. Serum levels of IMA, TAS, TOS were analyzed and Adj- IMA and OSI was calculated. Results: Serum IMA, TOS and OSI values were significantly higher in patients with BC compared to controls (p<0.0001, p=0.01 and p=0.01, respectively), whereas TAS was significantly lower in BC patients (p=0.04). There was no significant difference for serum albumin-adjusted IMA levels between groups (p=0.4). Conclusions: In this study, it was found that there was an impaired oxidative/antioxidant status in favor of oxidative stress in BC patients. This observation was not confirmed by Adj-IMA calculation. There is no published report about serum concentrations of IMA in patients with BC. Further studies are needed to establish the relationship of IMA and oxidative stress parameters in BC and the significance of IMA to other cancers.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.30 no.2
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• pp.196-204
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• 2020

Objective: Chronic obstructive pulmonary disease(COPD) is characterized by persistent airflow limitations associated with chronic inflammatory response due to noxious particles or gases in the lung. Increasing oxidative stress associated with COPD. The aim of this study was to evaluate the influencing factors of biomarkers for oxidative stress in retired miners with COPD. Methods: The levels of total peroxide(TPx), total antioxidant capacity(TAC), and oxidative stress index(TPx/TAC ratio, OSI) in plasma as biomarkers for oxidative stress, serum C-reactive protein(CRP) as a biomarker for inflammation, and general characteristics were measured in 93 male subjects with COPD. COPD was defined as post bronchodilator FEV₁/FVC<0.7 by spirometry. Results: Mean levels of TPx(p=0.013), TAC(p=0.010), OSI(p=0.040), and CRP(p=0.024) were higher in current smokers. Levels of TPx(β=0.445, p<0.001), TAC(β=0.490, p<0.001), and OSI(β=0.351, p<0.001) were related to CRP levels, and CRP levels were related to %FEV₁ predicted(β=-0.295, p=0.003) and current smoking(β=0.214, p=0.032). Conclusions: These results suggest that oxidative stress was related to inflammation, and inflammation were related to decreasing %FEV₁ predicted and current smoking in retired miners with COPD.

• Safety and Health at Work
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• v.2 no.2
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• pp.169-175
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• 2011

Objectives: The questionnaire of occupational stress index (OSI) has been popular in the workplace, and it has been tailored for bus drivers in Taiwan. Nevertheless, its outcomes for participants are based on self-evaluations, thus validation by their physiological stress biomarker is warranted and this is the main goal of this study. Methods: A cross-sectional study of sixty-three city bus drivers and fifty-four supporting staffs for comparison was conducted. Questionnaire surveys, 24-hour urine cortisol testing, and blood draws for dehydroepiandrosterone-sulfate (DHEA-S) testing were performed. The measured concentrations of these biological measures were logarithmically transformed before the statistical analysis where various scores of stressor factors, moderators, and stress effects of each OSI domain were analyzed by applying multiple linear regression models. Results: For drivers, the elevated 24-hour urine cortisol level was associated with a worker's relationship with their supervisor and any life change events in the most recent 3 months. The DHEA-S level was higher in drivers of younger age as well as drivers with more concerns relating to their salary and bonuses. Non-drivers showed no association between any stressor or satisfaction and urine cortisol and blood DHEA-S levels. Conclusion: Measurements of biomarkers may offer additional stress evaluations with OSI questionnaires for bus drivers. Increased DHEA-S and cortisol levels may result from stressors like income security. Prevention efforts towards occupational stress and life events and health promotional efforts for aged driver were important anti-stress remedies.

• Journal of Korean Ophthalmic Optics Society
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• v.20 no.3
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• pp.277-284
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• 2015

Purpose: The study aimed to evaluate the effect of circle contact lens wearing on visual quality of the eyes after a refractive surgery. Methods: The objective visual quality was evaluated for 40 eyes who did not get refractive surgery and 30 eyes who got a refractive surgery after applying plano circle contact lenses on their eyes, respectively. Modulation transfer function (MTF), objective scatter index (OSI) and the focusing ratio on retina (Strehl ratio) were measured by using optical quality analysis system (OQAS) and the correlation between pupil size and objective visual quality was analyzed by measuring the pupil size. Results: When wearing circle contact lens on the eyes after refractive surgery, MTF and Strehl ratio were reduced and OSI was increased compared with the eyes without refractive surgery. The eyes after a refractive surgery showed more significant difference changes in MTF, OSI and Strehl ratio according to the pupil size compared with those without refractive surgery. Conclusions: The results showed that wearing of circle contact lens after the refractive surgery has deteriorated the objective visual quality based on the quality of focused image on the retina. Therefore, we suggest that sufficient understanding and consideration about the deterioration of visual quality is necessary in the case of circle contact lens wearing after refractive surgery.