• Journal of Food Hygiene and Safety
• /
• v.18 no.2
• /
• pp.51-55
• /
• 2003

A germination method was used to detect biological changes in gamma-irradated apple, orange, and lemon at low doses at 0.1, 0.3, 0.5, 0.7, and 1.0 kGy. Ten fruit seeds of each sample were placed on moistened cotton and germinated at 3$0^{\circ}C$ for 7 days. Shoot lengths of all fruits were gradually grown for 7 days, but the growth was signficantly slow down by fifth day. During 7 days of germination, the growth of unirradiated fruits were significantly highter than the irradiated fruits. By examining the gamma-Irradiated fruits in this study, a germination method could be possibly one of the screening test to identify irradiated fruits.

• Survey Research
• /
• v.11 no.2
• /
• pp.141-160
• /
• 2010

This study aims to analyze the usefulness of the survey procedures developed for telephone surveys using a random sampling method. We conducted a telephone survey of residents in a local area from October 26 to November18,2009. We applied random sampling procedures with five call-backs. Particular attention was given to the conversion of refusals. Out of 2,454 phone numbers, we succeeded in getting responses from 637 numbers. The absence of residents was the primary cause of non-response. We received responses from 45.7% of those with whom we successfully made contact. One finding of this study is that, contrary to our initial expectations, call-backs do not significantly increase the percentage of responses from young people. Also we cannot find any significant differences in responses to various questions between the responses received from the first round of calls and later responses. However, these results are not conclusive; another survey may produce different results. Therefore, further research is needed.

• Survey Research
• /
• v.7 no.1
• /
• pp.109-129
• /
• 2006

This paper describes how the National Statistics Office Prepared Population and Housing Census in 2005. We focus on the methods of identifying living quarters and determining the enumeration districts. In the absence of the supports of the regional administrative offices, caused by the regulation change in 1999, the NSO devised several new techniques, such as using previous census DB, administrative records, GIS, and etc.. However, not-well-organized administrative system of the regional offices, particularly in terms of the use of IT technology, becomes one of the major bottleneck for identifying living quarters. In order for better preparation of Census, we seem to concern about not only the NSO's efforts to improve survey methods, but also the administrative system of the regional offices. This may indicates that we are at the stake of moving towards a more networked administrative system beyond the present organizational boundaries.

• Survey Research
• /
• v.6 no.1
• /
• pp.63-81
• /
• 2005

A survey method in Korea has being developed rapidly since a survey company was established in 1968. In latest, the CATI, internet survey, Notebook, PDA survey methods are being utilized in accordance with communication development. This article focuses on the practical use and the strength and weakness of the PDA survey solution which employs 'KISS' system designed by KRIVET itself. The survey using PDA has, on the one hand, such strengths as follows : 1) efficient field control, 2) reduction of time for verifying data and generation of proper data 3) shortening survey duration from intial survey to data completion, 4) cutting down survey personnel and cost. On the other hand, survey using PDA has the following weakness: 1) limitation of questionnaire expression, 2) increasing time for survey, 3) communication barrier in some regions.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.29 no.5
• /
• pp.843-848
• /
• 2000

The single cell-gel electrophoresis assay (comet assay) was used to identify irradiated beans. Soy beans, kidney beans, and red beans were irradiated with $^{60}Co$ gamma rays at 0.1, 0.3, 0.5, 0.7, and 1.0 kGy. Beans were peeled out, crushed lightly, and treated with phosphate-buffered saline (PBS) to extract cells. The extracted cell suspension was mixed with agarose gel solution and spread on an agarose precoated slide. After lysis of the cells, they were subjected to microgel electrophoresis for 2 minutes, and then silver-stained. We found that the DNA fragments of the irradiated samples were stretched, migrated out of the cells, and formed tails towards the anode giving the appearance of comets, while the unirradiated or the undamaged cells formed very short or no tails. The tail lengths of irradiated samples were significantly increased as irradiation dose increased at the above 0.3 kGy.

• Proceedings of the Korean Association for Survey Research Conference
• /
• 2007.11a
• /
• pp.191-204
• /
• 2007

본 논문은 한국복지패널 표본가구의 응답패턴을 가구의 인구사회학적 특성에 따라 분석하였다. 조사원의 표본가구 방문회수별 조사 성공율과 패널가구로 구축된 표본가구의 원표본유지율 등을 가구의 특징에 따라 분석함으로서 과학적인 조사체계를 구축할 수 있는 계기가 되고자 한다.

• Journal of the Korean Statistical Society
• /
• v.20
• /
• pp.97-102
• /
• 1991

조사통계는 정부통계 작성이 시초였으며 정부통계는 해방후 정부수립과 동시에 기본적인 항목만 생산되었으나 1961년 장기적인 경제발전계획의 수립과 추진을 위한 경제기획원 발족이 활성화의 계기가 되었다. 1963년에는 경제활동 인구조사에서 전수조사가 아닌 표본조사를 처음 적용하였으며, 1991년 1월 조사 통계국이 통계청으로 승격되어 다양한 분야의 수준높은 통계작성과 통계에 대한 신뢰성 제고가 가능케 되었다.

• KOREAN POULTRY JOURNAL
• /
• v.4 no.6 s.32
• /
• pp.42-44
• /
• 1972

농림부 축산국에서 조사한 가축 및 축산물 시세조사표중 닭오리, 계란의 7년간(1965$\~$)1971년)가격은 다음과 같다. 본 조사는 전국주요도시 10개(서울, 부산, 인천, 춘천, 청주, 대전, 익산, 광주, 대구, 김해) 축산협동조합에서 매월 1일, 15일 2회 조사보고된 것을 평균집계한 것이며 시장거래가격을 조사한 것이다.

• Proceedings of the Korean Statistical Society Conference
• /
• 2002.11a
• /
• pp.13-18
• /
• 2002

본 논문에서는 급변하는 농촌의 환경을 충분히 반영할 수 있도록 1997년도에 설계되어 사용되고 있는 현행의 농가경제조사를 개선하였다. 새로운 표본 조사구를 선정하기 위하여 1999년도와 2000년도 농가경제조사 조사데이터와 2000년에 실시된 농어업총조사 결과를 심도 있게 분석하였다. 이를 기초로 현재의 농촌 실정에 적합한 조사모집단을 새롭게 구성하였고, 현재의 농촌 환경을 반영할 수 있는 층화 기준을 마련하여 표본 조사구를 추출하였다. 또한, 논벼를 비롯한 6개 주요작물들에 대한 농산물생산비조사의 정도(精度) 향상을 위해서 각 작물별 주산지를 표본 조사구로 선정하였다.

• Proceedings of the Korean Association for Survey Research Conference
• /
• 2000.06a
• /
• pp.7-26
• /
• 2000

구조 조정을 거치면서 한국의 기업들은 고용관계의 구조와 관해에서 현저한 변화를 보이고 있다. 하지만 이러한 변화의 실상과 내용에 대한 정보의 결여로 인해 정책 당국자들은 올바른 사업장 단위의 고용관계 정책 입안에 애로를 겪고 있다. 정확한 현실 진단과 효율적 정책 입안을 위해 기업 단위의 고용관계 고용 및 인적자원경영 관행에 대한 정확한 실태 및 변화 추세 파악이 필요하다. 이 논문은 고용관계 패널조사의 필요성과 아울러 그 조사방법에 대한 함의를 얻기 위해 주요선진 국가들에서 80년대부터 실시한 사업장 단위 고용관계 패널조사의 경험들을 검토하고 이에 기초하여 한국현실에 적합한 사업장 단위 노사관계 패널조사의 의미와 방향을 모색한다. 특히 패널 조사의 특성과 관련된 조사방법 상의 문제점들이 집중적으로 논의된다.