"Difference in Difference Model"의 검색결과 입니다.

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pelt 9 논문 포스터 양식 국제무역론 영문이력서 PLLT frm 논문발표 ppt 샤오미 계량경제학

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"Difference in Difference Model" 검색결과 1,001-1,020 / 5,019건

초효율성을 이용한 원양어업의 생산성분석 (Productivity Analysis of Overseas Fisheries Based on Super Efficiency)

efficient DMU under the BCC model was DMU40, but its efficiency value was 7.940. Last, in the super ... of each DMU, we used the Mann-Whitney U test and Robust ANOVA to analyze the difference in ... difference in efficiency by the groups according to characteristics of DMU such as number of vessels, c

논문 | 20페이지 | 무료 | 등록일 2025.06.08 | 수정일 2025.06.10

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시간/주파수 선택적 채널환경에서 OFDMA 기반의 메쉬 네트워크를 위한 간섭 완화 기법 (Interference Mitigation Technique for OFDMA-based Mesh Networks in Doubly Selective Channels)

BER 성능에 오차 마루 현상이 없음을 모의실험을 통하여 확인하였다. In this paper, we described a received signal model in terms ... by time and frequency selective fading channels and time difference of arrival (TDoA) in OFDMA ... (Time Difference of Arrival)에 의한 간섭의 영향을 완화하기 위하여, FFT 윈도우시작 위치에 따른 수신 신호 모델을 기술하고, MMSE 필터를 사용하는 수신기

논문 | 8페이지 | 무료 | 등록일 2025.05.29 | 수정일 2025.06.05

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Finite Element Analysis of Instrumented Posterior Lumbar Interbody Fusion Cages for Reducing Stress Shielding Effects: Comparison of the CFRP cage and Titanium cage (Finite Element Analysis of Instrumented Posterior Lumbar Interbody Fusion Cages for Reducing Stress Shielding Effects: Comparison of the CFRP cage and Titanium cage)

biomechanical advantages of using different cage material in terms of stability and stresses in bone graft ... . The biomechanical advantages of using different cage material in terms of stability and stresses in ... In recent years, degenerative spinal instability has been effectively treated with a cage. However

논문 | 7페이지 | 무료 | 등록일 2025.05.28 | 수정일 2025.06.04

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허가-특허 연계제도 법률안의 검토 (Korea’s Patent Linkage Bill and Its Analysis)

have largely been modeled after the Hatch-Waxman Act. In light of the differences in the legal ... appears to have largely been modeled after the Hatch-Waxman Act. In light of the differences in the legal ... mechanisms recently proposed in a bill by the Korean government all have shortcomings. This article

논문 | 54페이지 | 무료 | 등록일 2025.06.04 | 수정일 2025.06.06

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GLS와 Bass 모형을 결합한 하이브리드 모형을 이용한 영화 관객 수 예측 (Prediction of movie audience numbers using hybrid model combining GLS and Bass models)

value of the regression analysis was corrected to that of the Bass model. In the analysis, three films ... possible combinations and 5-fold cross validation to estimate the model 5 times. In this case, the ... audiences using the theater is an important factor directly linked to movie industry sales. In this

논문 | 15페이지 | 무료 | 등록일 2025.05.28 | 수정일 2025.06.04

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화재모델링을 위한 광전식 연기감지기의 장치물성 측정 (Measurement of the Device Properties of Photoelectric Smoke Detector for the Fire Modeling)

smoke detector adopted in fire dynamics simulator (FDS) recognized a representativefire model. To ... , the Heskestad model could result in an inaccuratethe activation time of photoelectric smoke ... detector compared to the Cleary model. In addition, there was a distinct differencebetween the default

논문 | 7페이지 | 무료 | 등록일 2025.05.31 | 수정일 2025.06.05

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가압식 바닥공조 시스템과 야간 외기냉방의 병용에 따른 에너지저감 성능에 관한 연구 (A Study on Energy Saving Performance by Night Purge Cooling with Pressurized Under Floor Air Distribution System)

energy demands. In addition, the cooling energy demands for UFAD+NPC model were analyzed by applying ... lab may vary depending on the operating conditions of NPC. In this study, cooling energy demands were ... analyzed for building models with UFAD and NPC by using TRNSYS 17 program. UFAD was applied as a c

논문 | 9페이지 | 무료 | 등록일 2025.05.31 | 수정일 2025.06.05

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열간압연강에서 형성된 산화물 스케일의 잔류 응력 수치 분석을 위한 준해석적 방법 개발 (A Semi-analytical Approach for Numerical Analysis of Residual Stress in Oxide Scale Grown on Hot-rolled Steels)

In this study, we developed a semi-analytical approach for the numerical analysis of residual s ... tress in oxide scales formed on hot-rolled steels. The oxide scale, formed during the hot rolling ... instrumented indentation tests confirms the reliability of our model, which considers thermal expansion c

논문 | 8페이지 | 무료 | 등록일 2025.06.05 | 수정일 2025.06.09

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요크셔종과 랜드레이스종의 산자수 및 성비에 대한 유전모수 추정 (Estimation of Genetic Parameters for Litter Size and Sex Ratio in Yorkshire and Landrace Pigs)

. Differences in heritability and repeatability for TNB were not large among models 3, 4 and 5 and s ... central part of Korea. Five different analytical models were used for genetic parameter estimation ... model 4 but covariate of sow age was nested within parity effect. The results obtained in this study are

논문 | 8페이지 | 무료 | 등록일 2025.05.28 | 수정일 2025.06.04

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시뮬레이션을 사용한 구조방정식에서 상호작용효과 검증 방법 비교 (Comparison of Methods of Verifying Interaction Effect in Structural Equations Using Simulations)

efficiency of the interaction effect verification method in structural equation modeling by comparing various ... ificant difference in the power of the tests for differences in factor loadings across levels. LMS ... using OPI and LMS, based on the conditions. We generated data under 48 different conditions using s

논문 | 16페이지 | 무료 | 등록일 2025.05.31 | 수정일 2025.06.05

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계열별 글쓰기의 특성과 교육방법적 모형 개발 - 통섭형 글쓰기로의 지향 - (A Study of Curricular Quality and Writing Teaching Methods : The Course of Consilience Writing)

education with the least credit in the different curriculum.The purposes of Curricular Writing course ... efficient way for education with the least credit in the different curriculum. The purposes of ... The writing class in the university mainly requires three kinds of purpose; for liberal artistic

논문 | 29페이지 | 무료 | 등록일 2025.06.03 | 수정일 2025.06.06

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주차 감지를 위한 실시간 회전 객체 감지 모델 비교 분석 (Comparative Analysis of Real-Time Rotated Object Detection for Parking Lot Detection)

processing, and when a vehicle is detected in real time by a rotated object detection model, the parking ... increasing, but parking difficulties may occur depending on the parking fee and density at different ... vehicles in a car park in real time. The parking detection system detects the parking surface by image

논문 | 7페이지 | 무료 | 등록일 2025.06.01 | 수정일 2025.06.05

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서울시 상권 특성이 소매업 생존에 미치는 영향 (The Effect of Seoul Retail Area Characteristics on Its Survival)

percentage of not closed stores out of the total stores in the retail area. The aim of this study is to ... aim, we calculated the survival rate of businesses for retail areas in Seoul and established the ... ordinary least squares and spatial regression model to simulate stability. The analysis was conducted by

논문 | 16페이지 | 무료 | 등록일 2025.06.08 | 수정일 2025.06.10

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결함 심각도에 기반한 소프트웨어 품질 예측 (Software Quality Prediction based on Defect Severity)

the same severity. In this paper, we propose fault prediction models at different severity levels of ... backpropagation neural network model outperforms other models on both data sets, with about 81% and 88% in terms ... lassification model that predicts whether an input entity has faults or not. However the ability to predict

논문 | 9페이지 | 무료 | 등록일 2025.06.01 | 수정일 2025.06.05

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Welfare Effects of Corporate Tax Policy on Regional Economy : A Case Study for Daegu City in Korea (Welfare Effects of Corporate Tax Policy on Regional Economy : A Case Study for Daegu City in Korea)

find the efficient corporate tax rate in Daegu, Korea. For this purpose, we will apply simple ... regional CGE model to the case of Daegu, Korea for simulation analysis. We will then analyze welfare ... Daegu regional economy.We used data in 2007 to set up base economy for Daegu regional economy. Our

논문 | 12페이지 | 무료 | 등록일 2025.05.24 | 수정일 2025.05.27

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2단 절개 형태를 가지는 악교정 수술 장치 연구 (A Study of Orthognathic Surgical Guides with Two-stage Split Path)

In this study, the accuracy of the orthognathic surgical guides with single-stage split path was ... model and the scan model was + 0.289 / - 0.468 mm (standard deviation 0.128), which was confirmed to be ... within ± 0.5 mm, which is a clinically acceptable level. Also, there was no significant difference c

논문 | 8페이지 | 무료 | 등록일 2025.06.04 | 수정일 2025.06.06

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톨루엔-크레졸의 정압 기-액 평형 (Isobaric Vapor-Liquid Equilibrium of Toluene and Cresol Systems)

system becomes increasingly skew in proportion to the boiling point difference of system-forming c ... models in a satisfactory manner and the accompanying thermodynamic consistency test represented soundness ... onstituents. Therefore, phase behavior data of a system of a large boiling point difference are to be

논문 | 7페이지 | 무료 | 등록일 2025.06.06 | 수정일 2025.06.09

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Fay-Herriot 모형 하에서의 베이지안 모형 선택기준 비교 (Comparison of Bayesian Model Selection Criteria in Fay-Herriot Model)

riteria for Bayesian model. Sometimes model selection criteria may determine the different models as ... the best model. In this study we confirm the best Bayesian model selection criteria in semi ... 하는 비율이 낮아지는 경향을 보였으며, LCPO와 DIC는 직접추정치의 분산에 영향을 크게 받지 않는 것으로 나타났다. There are various model selection c

논문 | 10페이지 | 무료 | 등록일 2025.06.04 | 수정일 2025.06.09

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사전운동이 고정 후 골미세구조에 미치는 영향 (The Effect of Prior Exercise on Bone Morphological Microstructure after Immobilization in Mice)

PURPOSE: The purpose of this study was to analyze the differences of bone density and structure ... ), trabecular number (Tb/N), trabecular separation (Tb/Sp), structure model index (SMI), connectivity density ... repeated ANOVA was used to evaluate the differences between three groups and paired t-test analysis was

논문 | 8페이지 | 무료 | 등록일 2025.05.24 | 수정일 2025.05.27

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관세동맹의 정치적 함의 - 중앙아시아를 둘러싼 신거대게임의 판도 변화 - (The Political Implications of the Customs Union - The Changed Scene of the Power Game -)

Asia through SCO. A few studies insist that China has an interest in implant NAFTA model to the ... through SCO. A few studies insist that China has an interest in implant NAFTA model to the Central ... is not only economic event, but also political event.Different studies show the different economic

논문 | 32페이지 | 무료 | 등록일 2025.06.01 | 수정일 2025.06.05

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