• 경영과학
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• 제26권3호
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• pp.11-21
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• 2009

In this paper, we proposed some valuable analysis results of cultivation campaign marketing in A mobile telephone company. The cultivation campaign marketing is a new outbound TM campaign strategy composed of 4 steps for new subscribers. During the analyses, attrition rate of A mobile company, outbound TM rejection rate, contact rate/call success rate and additional service attrition rate after subscription are measured as an effect of cultivation campaign. The results showed that there were no statistical significance in improving retention rate between customers experienced 4 step cultivation campaign and control group. However, the cultivation campaign had a better effect on improving response rate and success of selling additional service product of mobile company compared to general selling campaign. This is because cultivation campaign group had been taking care of from subscription time. It is suggested that cultivation campaign had better confined customers more likely to buy additional service to outbound TM for the sake of financial efficiency.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2020년도 추계학술대회
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• pp.49-49
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• 2020

• 한국작물학회:학술대회논문집
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• 한국작물학회 2021년도 추계학술대회
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• pp.151-151
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• 2021

• 한국작물학회:학술대회논문집
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• 한국작물학회 2021년도 추계학술대회
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• pp.150-150
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• 2021

• 한국작물학회:학술대회논문집
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• 한국작물학회 2018년도 추계학술대회
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• pp.125-125
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• 2018

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 추계학술대회
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• pp.201-201
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• 2017

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 추계학술대회
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• pp.27-27
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• 2017

• 한국환경농학회지
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• 제34권4호
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• pp.253-259
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• 2015

BACKGROUND: During the off-season, the cultivation of Chinese cabbage and water dropwort is often used to desalinize plastic film house soils. The objective of this study was to verify the effect of double-cropping systems on the salt removal in oriental melon cultivated plastic film house soils.METHODS AND RESULTS: Electrical conductivity (EC) and soluble salt contents were measured in soils collected from plastic film houses of oriental melon cultivation before and after the off-season crop cultivation. Also the same measurements were performed in the next oriental melon season to estimate the desalinization effect of double-cropping systems. During the cultivation of Chinese cabbage under open-field condition, EC_eof surface soil was reduced from 6.0 to 0.8 dS/m. Double-cropping of water dropwort in flooded soil was also efficient in removing the salts accumulated during oriental melon cultivation. In the house soils where salts were removed during the off-season crop cultivation, soil EC_ewas maintained below 3 dS/m during the next oriental melon cultivation season.CONCLUSION: The off-season cropping under open-field or flooded condition was effective in desalinization of plastic film house soils. Since the salt removal effect is not expected to last for several years, the double-cropping system should be introduced every season to maintain soil EC below the critical level.

• 환경영향평가
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• 제21권5호
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• pp.707-713
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• 2012

There are a lot of parameters affecting microbial acclimation/cultivation characteristics such as dynamic conditions, F/M ratio and substrate affinity. From the process control point of view, the effect of high salinity on the removal efficiencies of BOD and SS have been documented by few researchers. In this research, lab-scale CAS(Conventional Activated Sludge) process and modified $A_2O$(Anaerobic/Anoxic/Oxic) process were operated and monitored to evaluate the characteristics of microbial acclimation and cultivation under high salinity wastewater during the period of three weeks. As a result of acute microbial activity test(6hr) at various $Cl^-$ concentration, the appropriate $Cl^-$ concentration for microbial growth and acclimation ranged under 3,100 mg/l. As a result of acclimation/cultivation test, the trend of COD removal efficiency reduced gradually as time elapsed. It is considered that $NH_4$-N removal phenomenon of the conventional pollutants removal mechanisms gave little effect to the microbial acclimation/cultivation under high salinity wastewater.

• 한국언론정보학보
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• 제57권
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• pp.181-201
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• 2012

이 연구는 (1) 기존의 텔레비전 전체 시청량이나 TV 뉴스와 드라마 장르에 집중되어온 문화계발 효과연구의 관심을 전환하여 근래 늘어나고 있는 리얼리티 표방 프로그램이라는 구체적인 장르의 효과에 주목하고, (2) 텔레비전의 시청이 계발하는 '사회적 현실 인식과 태도' 가운데 일상적인 삶의 가치와 태도로서 숙명적 태도에 미치는 효과를 검증하며, (3) 이러한 확장적 계발효과의 추론 근거로 '텔레비전 내용의 현실유사성 인식'의 매개효과를 탐구했다. 설문조사 자료 분석 결과, 고전적인 문화계발 효과이론이 주장하듯이 전체적인 TV 시청 총량은 숙명적 태도의 계발에 유의미한 예측변인으로 작용했다. 텔레비전 시청 총량을 통제한 상황에서도 리얼리티 표방 프로그램 이용은 수용자의 숙명적 태도와 유의미한 관련성이 있는 것으로 나타났으며, 이러한 결과는 유사한 계발효과를 내는 것으로 기존 연구들에서 집중해 왔던 뉴스(사실) 장르와 드라마(허구) 장르의 이용을 통제한 상태에서도 여전히 같은 모습을 보였다. 그리고 리얼리티 표방 프로그램 시청의 이러한 계발효과는 텔레비전에 그려지는 내용이 수용자 자신은 물론 주변 사람들의 실제 현실과 비슷하다고 느낄수록 더 커지는 것으로 나타났다.