RTiK-MP의 Export Driver 지원을 위한 방안 연구

조아라(Ah-Ra Jo),이승훈(Seung-Hoon Lee),이철훈(Cheol-Hoon Lee) 한국콘텐츠학회 2012 한국콘텐츠학회 종합학술대회 논문집 Vol.2012 No.5

윈도우즈 상에서 실시간 디바이스 드라이버를 위한 통합 미들웨어

조아라(Ah-Ra Jo),송창인(Chang-In Song),이철훈(Cheol-Hoon Lee) 한국콘텐츠학회 2013 한국콘텐츠학회논문지 Vol.13 No.3

최근 무기체계 산업에서 성능검증을 위해 사용되는 점검장비는 수락시험 시 데이터의 정밀성과 실시간성을 요구한다. 이러한 점검장비는 개발의 편의성을 위해 범용 운영체제인 윈도우즈를 사용하는데 윈도우즈의 경우 실시간성을 제공하지 못하는 문제가 있다. 따라서 본 논문에서는 군용 점검장비의 실시간 통신을 위해 윈도우즈 시스템에 실시간성을 제공하는 RTiK-MP(Real-Time implant Kernel-Multi Processor)을 이용한 통합 미들웨어를 설계 및 구현하였다. 또한 DLL(Dynamic Linking Library)을 사용하여 통합 미들웨어의 API(Application Program Interface)를 사용자에게 제공함으로써 기존의 복잡한 RTiK-MP의 내부 구현을 몰라도 개발이 용이하도록 개발의 편의성을 제공하였다. 본 논문은 군용 점검장비의 통신에 실시간성을 제공할 수 있는 통합 미들웨어를 설계 및 구현한 것으로써 많이 사용되는 TCP/IP LAN과 RS-232를 사용하였다. 마지막으로 성능검증을 위해 CPU 클럭 틱의 수를 반환하는 RDTSC 명령어를 사용하였고, 구현한 통합 미들웨어의 성능을 검증한 결과 TCP/IP 및 RS-232의 경우 각각 1ms 및 4ms 주기에서 오차범위 내에서 정상 동작함을 확인하였다. For the case of test equipments requiring data accuracy, real-time is highly required in acceptance test for performance evaluation of developed weapons. For convenience sake, test equipments are usually developed using Windows. However Windows does not support real-time in itself. Thus, in this paper, so as to reduce development time and expenses, we design and implement an integrated middleware for real-time device drivers using RTiK-MP. Using DLL, we also support user APIs for the sake of development convenience without details of the complex RTiK-MP structure. We evaluate the performance of the proposed integrated middleware using the RDTSC command which returns the number of CPU clock ticks. The evaluation results show that it operates correctly within error ranges in the periods of 1ms and 4ms for the cases of TCP/IP and RS-232, respectively.

세계유산 보존관리와 지역의 지속가능한 발전을 위한 지역공동체 참여: 화성과 남한산성의 비교

조아라 ( Ah Ra Jo ),김숙진 ( Sook-jin Kim ) 한국도시지리학회 2016 한국도시지리학회지 Vol.19 No.2

최근 세계유산의 보존과 관리 부분에서 지역공동체의 참여를 강조하고 있다. 하지만 국내의 상황은 지역주민의 참여 및 역량강화에 대한 부분이 미흡한 실정이다. 이러한 상황에서 본 연구는 1997년 세계유산으로 등재된 화성과 2014년 등재된 남한산성을 대상으로 지역주민의 세계유산에 대한 의식과 참여도 등을 설문조사를 통해 알아보았다. 또한 세계유산 보존관리 등에의 지역주민 참여에 영향을 미칠 요소로 사회연결망과 마을 만들기 사업도 함께 분석하였다. 연구결과를 바탕으로 몇 가지 제안을 하자면, 화성에서는 현재 활발히 진행 중인 마을 만들기 사업을 화성과 관련한 사업과 연계한다면 세계유산의 보존관리에 지역주민의 참여율을 높일 수 있을 것이다. 한편 남한산성에서는 행정기관과 소통이 잘 되지 않는다는 것이 주민들의 가장 큰 불만사항인 것으로 보이며, 이를 해소하기 위하여 지역에서 오랜 기간 동안 형성되어온 사회적 자본을 바탕으로 주민과의 원활한 소통을 할 수 있는 좌담회 등을 정기적으로 개최하고 남한산성의 보존관리, 활용에 지역주민들의 참여를 보장하는 마을 만들기 사업을 진행한다면 지역의 지속가능한 발전에 기여할 수 있을 것으로 보인다. Local community involvement has recently been highlighted as a key factor to ensure the sustainable conservation and management of World Heritage sites. In reality, however, there has been lack of support and any attempts for participation and capacity-building of local communities in the World Heritage sites in Korea. In this context, this study examines two real cases: Hwaseong Fortress and Namhansanseong. The investigation includes local residents` awareness and participation in World Heritage conservation and management, and their social networks and Maeulmandeulgi(Community-Building Projects) as potential facilitators for increased local community participation. This study offers several suggestions to promote local community involvement. In case of Hwaseong Fortress of which site is large and highly urbanized with little social capital, Maeulmandeulgi can be used as a local community participatory project for conservation and management of World Heritage Sites. In case of Namhansanseong where local authorities had been implementing a top-down approach in not only World Heritage inscription but also Maeulmandeulgi, social capital historically developed can be used as a good source to facilitate local community involvement in sustainable development of local community as well as effective conservation and management of World Heritage Sites.

소비자 가치 및 과시적 소비성향이 공익마케팅 패션제품에 대한 태도 및 구매의도에 미치는 영향

조아라 ( Ah Ra Jo ),이윤정 ( Yoon Jung Lee ) 한국의류학회 2015 한국의류학회지 Vol.39 No.1

This study examines how consumer value and conspicuous consumption tendency influence attitudes andpurchase intention toward fashion cause-related marketing products. Survey questionnaires were distributedto 326 women in their 20``s to 50``s living in Seoul January 2012. The instruments included measurementsof consumer value, conspicuous consumption tendency, attitude toward fashion cause-related marketingproducts, intention to purchase fashion cause-related marketing products, and demographics. Factor analysis,correlations, and multiple regressions were conducted using SPSS 12.0. The results of this research are asfollows. Consumer value affected attitude toward fashion cause-related marketing products as well as intentionto purchase products. Those with a higher conspicuous consumption tendency showed a higher intentionto purchase fashion cause-related marketing products, regardless of attitude toward fashion CRM products. This indicates that and association with famous prestige brands will increase the possibility of successof cause-related marketing products. The research helps establish a marketing strategy to launch newfashion cause-related marketing products by discovering the relationships between consumer consumptionpatterns and attitudes toward fashion cause-related marketing products.

간호대학생의 성별에 따른 전문직 자아개념 영향요인

조보라(Jo, Bo-Ra),유은아(Yoo, Eun-Ah),박수진(Park, Soo-Jin),조아라(Jo, Ara),박수연(Park, Su-Youn),박서영(Park, Suh-Young),김동영(Kim, Dong-Young),김현용(Kim, Hyun-Yong),강경아(Kang, Kyung-Ah) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.4

본 연구는 성별에 따라 간호대학생의 자아탄력성과 전문직 자아개념 인식정도의 차이를 분석하고 전문직 자 아개념에 영향을 미치는 요인을 비교하기 위한 서술적 조사연구이다. 서울시 소재 2개 간호대학(과)에 재학하는 학생 445명을 대상으로 하였으며 자료분석방법은 SPSS WIN 18.0 프로그램을 사용하여 서술통계, t-test, χ2.test, Fisher’s exact test, one way ANOVA, Pearson 상관관계, 다중회귀분석을 구하였다. 연구결과 남학생이 여학생에 비해서 자아 탄력성과 전문직 자아개념 정도가 유의하게 높았다. 성별에 따른 일반적 특성별 자아탄력성과 전문직 자아개념과 유 의한 차이를 보인 변수는, 여학생은 학년과 휴학유무, 남학생은 동아리 활동유무이었다. 자아탄력성과 전문직 자아개 념과의 상관관계는 남여학생 모두에서 유의한 긍정적 상관관계를 보였고, 전문직 자아개념에 영향을 미치는 유의한 요인은 자아탄력성이었다. This study was done to analyze the difference in resilience and professional self-concept and compare the influencing factors on Professional Self-Concept among different sexes of nursing students. Subjects were 445 students from two nursing schools in the Seoul city. Data were analyzed by descriptive statistics, t-test, χ2 – test, Fisher’s exact test, one way ANOVA, Pearson correlation coefficients, and multiple regression using the SPSS WIN 18.0 program. Male students had much better resilience and professional self-concept than female students. Variables which were significant differences in resilience and professional self-concept according to sexes were in the females’ case, grade and leave of absence and in the males’ case, club activities. There was a positive correlation between resilience and professional self-concept both sexes. In both groups, the factor that affected professional self-concept was resilience.

음악줄넘기 프로그램이 비만 지적장애 학생의 신체조성 및 협응력에 미치는 영향

조아라(Jo, Ah-Ra),김광찬(Kim, Kwang-Chang),현광석(Hyun, Kwang-Seok) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.59

The purpose of this study is to examine the effects of a 12-week music rope-skipping program on the body composition and the physical coordination of obese students with intellectual disabilities (ID). Height, weight, and body fat were measured to examine the changes of body composition. The physical coordination was evaluated in terms of four items (backward balance, hoping on one leg, jumping sideways, and shifting plat forms) and general MQ (motor quotient) as the sum of four items. The major results were as follows: After the 12-week music rope-skipping program, there were no significant differences in heights but weights and body fat were significantly decreased (p<.05). The 12-week music rope-skipping program for obese students with mental retardation was effective in improving all the four items (backward balance, hoping on one leg, jumping sideways, shifting platforms) and general MQ for the physical coordination. These results suggest that the 12-week music rope-skipping program for obese students with mental retardation has a positive effect on the improvement not only in the body composition by decreasing weights and body fat but also in backward balance, hoping on one leg, jumping sideways, shifting platforms and general MQ for the physical coordination.

Comparison of the cytotoxicity of bisphenol A and its analogs on human placental BeWo cells

김미진,Jo Ah-Ra,김지영,An Mi-Jin,Shin Geun-Seup,Lee Hyun-Min,Kim Jinho,박진홍,김철홍,Kim Jung-Woong 대한독성 유전단백체 학회 2023 Molecular & cellular toxicology Vol.19 No.3

Background Bisphenol A (BPA) and its alternatives (BPF, BPS) are widely used in daily consumer products, which commonly expose humans to these chemicals. Bisphenols (BPs) are endocrine-disrupting chemicals widely present in the environment and can accumulate in the entire food chain by circulating in the ecosystem. In humans, BPs intake leads to accumulation in the human body and causes many chronic diseases, including endocrine disruption, immunotoxicity, and cancer. Objective Although several studies have demonstrated the negative eff ect of BPA and its alternatives, studies have yet to be determined whether bisphenols can aff ect human trophoblast cells. Thus, this study aimed to analyze the toxic eff ect of BPs on the human trophoblast cell line BeWo. Results We investigated the cytotoxic eff ect of BPs on human trophoblast cells. The cytotoxicity was measured by the MTS assay and fl ow cytometric analysis that representing the cell viability, cell proliferation, cell cycle progression and apoptotic cell death. BPs had no eff ect on BeWo cell viability at concentrations below 100 mM, and did not cause signifi cant changes in cell proliferation and apoptosis. However, BPA and BPS altered cell cycle progression and checkpoint regulator expression. Conclusion BPs did not aff ect cell viability and proliferation. However, BPS altered the G 0 /G 1 and G 2 /M phases of the trophoblast BeWo cells by increasing cyclin B1 expression.

Comparative Evaluation of Antioxidant, Anti-diabetic and Anti-diabetic Complication Effects of Artemisia capillaris Thunb, A. capillaris Herba and A. iwayomogi

A Ra Jo,Eun Bi Kuk,Seo in Oh,Hee Sook Sohn,Jae Sue Choi,Hyun Ah Jung 한국식품영양과학회 2015 한국식품영양과학회 학술대회발표집 Vol.2015 No.8

ORIGINALARTICLE : A mild decrease of renal function is related to increased hemoglobin level during 5-year follow-up period

( Na Ra Shin ),( Hyun Suk Kim ),( Hyo Jin Kim ),( Mi Yeun Han ),( Sun Hwa Lee ),( Hyung Ah Jo ),( Huh Hyuk ),( Ho Jun Chin ) 대한내과학회 2014 The Korean Journal of Internal Medicine Vol.29 No.3

Background/Aims: We analyzed chronological changes in hemoglobin accordingto renal function changes over a 5-year follow-up period. Methods: We enrolled 5,266 adults with a glomerular filtration rate (GFR) ≥ 60mL/min/1.73 m2 at an initial examination at a routine health check-up; a follow-up examination was conducted 5 years later. We categorized the subjects accordingto GFR ratio (groups 1, 2, and 3, defined as GFRratio ≥ 1.00, 0.75 to 0.99,and < 0.75, respectively). Results: The mean hemoglobin level in subjects with a GFR of 60 to 74 was higherthan in those with a GFR of 75 to 89 or ≥ 90 mL/min/1.73 m2 at the initial examination(all p < 0.001). Among females and males, the frequencies of increasedhemoglobin were 46.8% and 40.6% in the GFRratio group 1, 52.4% and 46.1% ingroup 2, and 59.6% and 52.5% in group 3 over the 5-year period, respectively (allp < 0.001). With multiple logistic regression, group 3 showed 1.594-fold (95% confidenceinterval [CI], 1.127 to 2.225) and 1.353-fold (95% CI, 1.000 to 1.830) higherlikelihoods of increased hemoglobin over the 5-year follow-up period in femalesand males, respectively. The estimated difference in hemoglobin level was highestin group 3 in both genders. These findings were more evident in subgroupswithout metabolic syndrome, diabetes mellitus, hypertension, or GFR less than90 mL/min/1.73 m2. Conclusions: Among a population with GFR ≥ 60 mL/min/1.73 m2, a mild decreasein GFR over a 5-year follow-up period was associated with an increase inhemoglobin levels.

어병세균 Edwardsiella tarda에 대한 한약재 추출물의 항균활성

김아라 ( Ah Ra Kim ),김도균 ( Do Kyun Kim ),변태환 ( Tea Hwan Byun ),조은지 ( Eun Jee Jo ),이은우 ( Eun Woo Lee ),권현주 ( Hyun Ju Kwon ),김병우 ( Byung Woo Kim ),김태훈 ( Tae Hoon Kim ),이경본 ( Kyung Bon Lee ),김영만 ( Young Man 한국식품저장유통학회(구 한국농산물저장유통학회) 2011 한국식품저장유통학회지 Vol.18 No.1

The methanol extracts of 19 commercial herb medicines was analyzed to antibacterial activities against Edwardsiella tarda, causing several fish diseases. Rhus javanica showed most strong antibacterial activity against E. tarda and Escherichia coli. Methanol extract of R. javanica was further extracted using several organic solvents having different polarity. Extract from ethyl acetate fraction showed strong activity against E. tarda as well as E. coli. Minimal inhibitory concentration, MIC of R. javanica extract was measured and resulted showing 64 ㎍/㎖ for E. tarda and 256 ㎍/㎖ for E. coli. It is needed that, from these results, further purification and isolation of reposible compound of these activities and further study on the synergy effect using combination with antibiotics against pathogenic bacteria.