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서의훈(Euy Hoon Suh),양호숙(Ho Sook Yang) 한국자료분석학회 2000 Journal of the Korean Data Analysis Society Vol.2 No.3
이 논문은 범죄발생률과 지역 특성간의 관계를 파악하는 데 그 목적이 있다. 다섯 가지 범죄발생률에 따라 전체 도시를 분류하고 분류된 각각의 군집에 대한 지역적 특성을 살펴보았다. 범죄발생률이 다른 지역에 비해 매우 높은 동두천, 오산, 과천, 여천을 제외한 나머지 도시는 4개의 군집으로 분류되었다. 범죄발생률이 높은 지역은 이혼률이 높고 전화보급수와 유흥업소 수가 많으며 고령자비, 저소득자비, 학교수가 작은 것으로 나타났다. This study aims to explore the relationship between the regional characteristics and crime rates. We classify residential areas by the crime rates and find some distinguished characteristics in classified residential areas. All cities are classified into four clusters, except the four cities with very high crime rates(Dongduchun, Osan, Kwachun and Yeuchun). The cluster with high crime rates is characterized by high divorce rate and many pleasure resorts.
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감자 收穫後 放射線 照射時期 및 照射線量이 그 貯藏性에 미치는 影響
조한옥(Han Ok Cho),변명우(Myung Woo Byun),권중호(Joong Ho Kwon),양호숙(Ho Sook Yang) 한국식품영양과학회 1982 한국식품영양과학회지 Vol.11 No.4
감자의 長期安全貯藏法 開發을 위하여 適正照射線量및 適正照射時期를 究明한 結果는 아래와 같다.<br/> (1) 品種間에 差異는 있으나 수확후 15~30日 사이에 放射線을 照射할때는 12.5krad의 線量이 적당하고, 수확후 45日 이후에 照射할때는 15krad 정도의 照射가 必要하며, 가급적 수확후 休眠期間중 빨리 照射하는 것이 유리하다고 본다.<br/> (2) 適正照射線量에서의 調査區는 無處理區에 比해 物理的性質이 優秀하였으며, 放射線照射 後 自然低溫貯藏庫에 貯藏 함으로서 無處理區보다 貯藏期間을 4個月以上 연장시킬수 있었다. In order to determine the optimun condition for the long term storage of potatoes by irradiation combined with natural low temperature, the dose range and irradiation time after harvesting of two varieties were investigated.<br/> Although optimum dose of potatoes and was different according to the variety 12.5krad seemed optimum untill 15-30 day after harvesting and 15krad was for later than 45 day after harvesting.<br/> The sooner the irradiation was efficient after harvesting.<br/> Optimum dose irradiated group were better in change of sprouting, rotting, weightloss and shrivelling and was extended the storage period more than four months compared with control at natural low temperature storage room.
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방사선조사와 자연저온에 의한 발아식품의 Batch Scale 저장에 관한 연구 : 제3보 양파의 저장 Ⅲ. Storage of Onions
조한옥,권중호,변명우,양호숙 한국농화학회 1983 Applied Biological Chemistry (Appl Biol Chem) Vol.26 No.2
In order to develop a commercial storage method cf onions by irradiation combined with natural low temperature, two local varieties of onions, precocious species and late ripening, were stored at natural low temperature storage room(450×650×250㎝H.; year-round temperature change, 2∼17℃; R.H., 80∼85%) on batch scale following irradiation with optimum dose level. Precocious and late varieties were all sprouted after five to seven months storage, whereas 10∼15 Krad irradiated precocious variety was 2∼4% sprouted after nine months storage, but sprouting was completely inhibited at the same dose for late variety. The extent of loss due to rot attack after ten months storage were 23∼49% in both control and irradiated group of precocious variety but those of late variety were only 4∼10%. The weight loss of irradiated precocious variety after ten months storage was 13∼16%, while that of late variety was 5.3∼5.9% after nine months storage. The moisture content, during whole storage period, of two varieties were 90∼93% with negligible changes. The total sugar content differed little with varieties and doses immediately after irradiation, but decreased by the elapse of storage period. 33.6% of its content was decreases: in control and 12.5% in irradiated group but 20∼26% decreased in both control and irradiated group of late variety after nine months storage. No appreciable change was observed immediately after irradiation irrespective of variety and dose, but decreased slightly with storage. Ascorbic acid content of precocious variety was increased slightly with dose immediately after irradiation, but those of late variety decreased slightly. Ascorbic acid content were generally decreased during whole storage period. An economical preservation method of onions appliable to late variety, would be to irradiate onion bulbs at dose range or 10∼15Krad followed by storage at natural low temperature storage room.
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