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180도 방위 빔 커버리지 특성을 갖는 UNII대역 소형 전자 빔 조향 기생 배열 안테나
최익권(Ikguen Choi),주상호(Sangho Ju) 한국산업정보학회 2010 한국산업정보학회논문지 Vol.15 No.2
본 논문에서는 180도 방위 빔 커버리지 특성을 갖는 소형의 고이득 빔 조향 기생배열 안테나를 제안한다. 이 안테나는 단일면 야기 다이폴 급전소자와 리액턴스가 장하된 인접한 두 기생 다이폴 소자로 구성되며 제작된 안테나는 기생소자의 리액턴스를 전자적으로 변화시킴으로써 UNII 대역에서 (5.725㎓~5.825㎓) 방위각 -90°에서 90°범위에서 5.2㏈~6.7㏈ 이득 특성을 가지며, 반사손실은 -10㏈이하임을 측정을 통해 확인하였다. In this papar, we have proposed a small electronically steerable parasitic array radiator with 180 degree azimuth beam coverage and high gain characteristics. The proposed antenna is composed of a uniplanar Yagi dipole as a feeding element and two dipoles as parasitic elements. The fabricated antenna is tested by electronically changing the reactance loaded on the parasitic dipoles and the results show that it has 5.2㏈~6.7㏈ gain in -90°~90° wide azimuth range and -10㏈ return loss characteristics within 5.725㎓~5.825㎓ UNII band.
병 대상 표준화된 기본심폐소생술(PWW방식) 교육이 심폐소생술 수행능력에 미치는 효과
김진선 ( Jinsun Kim ),김인영 ( Inyeong Kim ),김자연 ( Jayeon Kim ),임재황 ( Jaehwang Leem ),주기범 ( Kibum Ju ),주상호 ( Sangho Chu ),박종호 ( Jongho Park ) 국군의무사령부 2017 대한군진의학학술지 Vol.48 No.1
Objectives: This study examines the effects of practice while watching based CPR training on CPR performance for soldiers. The study intended to seek a CPR education method suitable for military. Methods: The participants were 375 soldiers in J city and D city. Data were collected from June, 2016 through December 2016. This study was a nonequivalent control group no-synchronized design. The data were analyzed with t-test and repeated measure ANOVA using the SPSS/PC 20.0 win. Result: There is a statistically significant difference in performance and accuracy between practice while watching based CPR training and power point based CPR training(p〈0.05) Conclusion: practice while watching based CPR training group was higher than the CPR score of power point based CPR training group. It is found that the practice while watching based CPR training could be effective.
B2B 거래에서 서술모델과 예측모델을 이용한 고객가치 산정
박찬주,박윤선,주상호,유우연 한국경영과학회 2003 經營 科學 Vol.20 No.2
Developing a proper program for customer evaluation is one of the most imminent CRM(Customer Relationship Management). Design of the Customer Value model is an important key to the customer evaluation program. This paper proposes two models for estimating Customer Value. The first one is a Description Model for Customer Value based on customer CSI(Customer Satisfaction Index) data. This model represents as quantitative numbers what customers feel from the company or the service. The second one is a Prediction Model which employs factor analysis and regression to predict customer value. This paper exploits the two models to evaluate Customer Value as well as for customer behavior prediction.