• Proceedings of the Korean Institute of Resources Recycling Conference
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• 2002.05a
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• pp.27-36
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• 2002

1995년 이후부터 현재까지 전기로 제강더스트의 재활용 또는 처리에 대하여 국내 및 전 세계의 공개특허 및 연구논문을 분석하여 전기로 더스트의 재활용연구 동향을 파악하고자 하였다. 국내의 경우, 35건의 특허가 공개 또는 등록되었는데, 활용방법에 따라 분류하면 다음과 같다. 고형안정화처리가 6건, 케미칼 제조 7건, 아스콘 채움재가 4건, 토건재료로 활용이 3건, 습식처리 회수가 4건, 용융환원 3건, 폐수처리활용이 2건, 시멘트원료 1건, 건식회수법 5건으로 나눌 수 있다. 또한 년도별로는 95년 2건, 96년 1건, 97년 4건, 98년 4건, 99년 5건, 2000년 18건, 2001년 1건이 출원되었다. 2000년에 전체 출원 건수의 절반이 집중되었다. 미국특허는 이 기간중 39건이 등록된 것으로 검색되었다. 년도별로는 95년 3건, 96년 6건, 97년 5건, 98년 7건, 99년 9건, 00년 2건, 01년 3건, 2002년 4건(2개는 한국출원)이 검색되었다. 처리방법 별로는 마찰재 원료로 활용 3건, 고화처리 3건, 건식장치 1건, 습식처리 13건, 유동환원, 직접환원, 환원배소, 플라즈마환원등의 건식 처리법이 10건, 습식+건식콘크리트 4건, 폐수처리 활용 1건, 건자채 생산 1건등이 등록되었다. 국가전자도서관에서 EAF Dust를 키워드로 1993년 이후의 EAF Dust 관련 연구문헌을 검색한 결과 48건이 검색되었고, 01년에 5건, 00년에 3건, 99년에 4건, 98년 2건, 97년이 가장 활발하여 15건의 보고가 확인되었다. 96년에는 8건, 95년에는 3건의 보고가 검색되었다. 01년의 연구논문들은 direct recycling, reduction kinetics, distillation reduction등에 관심을 보이고 있었다. 가장 활발하게 많은 연구논문이 발표되었던 97년 이후에는 논문 발표수가 현저히 감소되어 97년 이후에 이 분야에 대한 관심이 감소하고 있음을 보여주고 있다.

• TTA Journal
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• s.70
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• pp.55-57
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• 2000

정보통신표준화운영규정 제8조(의결), 제9조(투표단위), 제10조(의결방법), 제29조(표준화 과제의 채택 등)에 의거한 제19차 정보통신표준총회(2000. 7. 13)가 개최되어 총 309건의 정보통신단체표준(TTAS)이 제정되고 1건이 개정되었으며, 6건의 표준화 과제가 선정되고 8건이 폐지되었다. 이번에 제/개정된 310건의 단체표준은 통신망분야 1건, 통신망운용관리분야 12건, 정보화분야 2건, 정보보호분야 2건, 전파통신분야 1건, 차세대이동통신분야 292건으로 새로이 제정된 단체표준 및 개정된 단체표준 중 일부표준을 선정하여 표준내용을 요약$\cdot$소개한다.

• Korean Journal of Food Science and Technology
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• v.42 no.1
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• pp.1-7
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• 2010

To revise the dithiocarbamates residue analysis method and survey the residues in agricultural products that were treated with these fungicides in Korea, we purchased 20 types of foodstuffs (rice, potato, cabbage, apple etc.) from markets in five major cities. 236 samples of the purchased foodstuffs were then analyzed for the presence of dithiocarbamates by HPLC/UV and HPLC/APCI-MS. The $R^2$, LOD and LOQ in the range of 0.5-107.3 mg/L were as follows: DCC: y=174.34x+18.315, $R^2=0.9999$, 0.01 mg/L, and 0.04 mg/L; EBDC: y=227.38x-14.715, $R^2=1.0000$, 0.01 mg/L and 0.02 mg/L; PBDC: y=38.46x-21.412, $R^2=0.9999$, 0.04 mg/L, and 0.1 mg/L; ETU: y=52.752x-4.4819, $R^2=0.9998$, 0.02 mg/L and 0.03 mg/L; PTU: y=128.28x+4.4624, $R^2=0.9998$, 0.02 mg/L, and 0.04 mg/L. The levels of DDC, EBDC, PBDC, ETU and PTU in 20 agricultural products fortified to 10.0-107.3 mg/L ranged from 61.7-117.5%, 65.3-110.1%, 61.5-109.6%, 69.3-116.3% and 70.2-97.2%, respectively. Overall, dithiocarbamates were detected in 100 samples and the detection ratio was 42.4%. Among these, only 3 samples (1.3%) of Lycii fructus had residue levels that were above the action limits, while the remaining samples (233 samples) contained levels of dithiocarbamates below the detection limit or below the Korea MRLs (Maximum Residue Limits).

• The Korean Journal of Pesticide Science
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• v.21 no.1
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• pp.49-61
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• 2017

The study was conducted for safety evaluation of 208 kinds of residue pesticides on 200 dried agricultural products, which are distributed in Gwangju. The method of monitoring was the second of Multi Class Pesticide Multi-residue Methods in Korean Food Code, and GC-ECD, GC-NPD, GC-MSD, and LC-MS/MS were used as evaluation equipment to analyze. The residue level in pesticides were 15.5% (31 of 200 samples) and 4 samples exceeded MRLs. 4.5 mg/kg of pyraclostrobin (MRL; 3.0 mg/kg) was detected in red pepper, 1.49 mg/kg of chlorpyrifos (MRL; 0.13 mg/kg) in daikon leaves, 38.26 mg/kg of pyridalyl (MRL; 0.25 mg/kg) in pepper leaves, 0.98 mg/kg of chlorpyrifos (MRL; 0.05 mg/kg), respectively. Pesticides were found on the 15 samples among the 21 samples of red pepper which is a fruit vegetable, and this resulted in high detection rate of 71%. In addition, pesticides were detected on chwinamul, shitake, siler divaricata, daikon leaves and others within MRLs. The frequent detected kinds of pesticides were insecticide (47.6%), fungicide (33.3%), acaricide (14.3%), nematicide (4.8%) in the order named, and pesticides were methoxyfenozide > pyraclostrobin > azoxystrobin, chlorantraniprole > novaluron, trifloxystrobin in frequent order.

• Journal of Food Hygiene and Safety
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• v.14 no.4
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• pp.380-385
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• 1999

This study was performed to investigate the contents of sulfites in 2, 770 dried marine products in Seoul Chung-Bu market from March to October in 1999. Sulfites of the samples were determined by Zn powder reduction method and Monnier-Williams's modified method. Eight samples of 2, 770 (0.29%) were detected over 30ppm in SO2 contents by Monnier-Williams's modified method. In samples detected over 30ppm, six dried filefishes(130.2~573.4ppm) were imported from Vietnam, same kind of other one(114.2ppm) was from China and the other one Alaska pollack(196.3ppm) was domestic. By Zn powder reduction method, 259 dried marine products (259/2, 770=9.35%) were positive reaction (1-30ppm). These were 93 dried shrimps, 53 filefish meats, 34 dried squids, 33 slices of dried pollacks and 17 sea mussel meats. So sulfites must be use commonly to prevent black spot and preserve for many dried shrimps, filefishes meats, dried squids etc. According to results, the quality test for the imported dried marine products must be reinforced to supply safety food for the citizens.

• Monthly Duck's Village
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• s.238
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• pp.8-13
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• 2023

충북도에서는 2021년 11월 8일부터 지난해 2월 12일까지 총 10건의 AI가 발생했다. 충북 진천에서 5건, 괴산에서 1건, 음성에서 4건으로 오리집산지인 진천과 음성에서 AI가 발생하면서 그 피해규모는 더욱 커졌다. 실제로 총 10건의 AI 중 오리 7건, 닭 2건, 메추리 1건으로 오리농가에서 AI가 대부분 발생했으며 이 AI로 14호의 농가 가금류 123만3,000수가 살처분 당했다. 충북도는 한반도 중앙에 위치, 내륙의 교통 요지로 AI가 국내 발생 시 유입 가능성이 높은 지역이다. 인접 시·도 전파로 전국 확산 가능성이 높기 때문에 더욱 중요도가 높은 충북도의 AI 방역정책을 자세히 알아본다.

• Journal of Life Science
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• v.13 no.4
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• pp.390-399
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• 2003

Four species of the genus of Listeria were isolated from seawater and sea food in Kyungnam province, South Korea. These isolated strains were classified into Listeria sp. from different samples by appropriate cultivation conditions and biochemical tests including serological test. In a day enrichment cultivation, the following strains were found out of 100 samples: L. innocua (35%), L. ivanovii (4%), L. monocytogenes (4%), and L. welshimeri (1%). For seven days enrichment culture, L. innocua (38%), L. ivanoii (5%), L. monocytogenes (7%), and L. welshimeri (1%) were isolated. From these results, Listeria species were more efficiently isolated in seven day enrichment broth than in one day enrichment. However, these isolated Listeria species were less grown in the selective medium than in the enrichment medium. Isolation rates of Listeria species showed differency for each sample and Listeria species were more abundantly isolated in shrimps (80%) and crayfishes (80%) than little neck clams (50%), seawater (25%) and mussels (20%). From the results of serological classes for the seven L. monocytogenes, two strains were defined as type I and the other five strains as type IV.

• Journal of Food Hygiene and Safety
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• v.15 no.4
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• pp.340-343
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• 2000

This study was performed to investigate the contents of sulfites in 1,063 dried seaweeds in Seoul Chung-Bu market from March in 1999 to August in 2000. Sulfites of the samples were determined by Zn powder reduction method and bonnier-Williams's modified method. Two samples of 1063 (0.19%) were detected over 30ppm in SO$_2$ contents by bonnier-Williams's modified method. In samples detected over 30ppm, 2 brown algaes were 171.4ppm and 295.7ppm. By Zn powder reduction method, 54 dried seaweeds (54/1063 = 5.08%) were positive reaction (1-30ppm). These were 28 dried lavers, 27 dried brown seaweeds and 2 sea cabbages. According to results, the quality test far the dried seaweeds must be reinforced to supply safety food for the citizens.

• Korean Journal of Food Science and Technology
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• v.47 no.3
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• pp.306-320
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• 2015

This survey was carried out in 2014 to estimate the pesticide residue levels in commercial environment-friendly agricultural products in Seoul metropolitan area. Pesticide residues in 27 commodities were examined and analyzed using LC-MS/MS, which can simultaneously detect up to 85 pesticides. A total of 441 samples were collected and analyzed. Among the detected samples, the residue levels in 1.2% of organic agricultural products and 2.2% of pesticide-free agricultural products exceeded the maximum residue limits (MRLs); hence, 1.8% of the total samples exceeded the MRLs. The safety of the detected pesticides was assessed by monitoring the acceptable daily intake level (ADI) and acceptable dietary exposure (ADE) to the pesticides via consumption of the commodities. ADI and ADE are found to be 0.07728-9.46530% and 0.00141-0.17210%, respectively, which means that the residual pesticides in the environmental-friendly agricultural products in Korea are below the safe limit and therefore, pose no potential public health risks.

• TTA Journal
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• s.67
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• pp.100-103
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• 2000

정보통신표준화운영규정 제8조(의결), 제9조(투표단위), 제10조(우편투표), 제35조(표준의 채택 등)와 정보통신표준화지침 제6조(표준안의 검토 및 심의)에 의거한 제16차 정보통신표준총회(`99. 12. 8)가 개최되어 62건의 정보통신단체표준(TTAS)이 제정되고 1건이 개정되었다. 이번에 제/개정된 63건의 단체표준은 시험인증분야 4건, 서비스 및 단말분야 5건, 통신망분야 16건, 전파통신분야 1건, 정보화분야 14건, 데이터분야 6건, 정보통신S/W분야 17건으로 새로이 제/개정된 단체표준 중 일부표준을 선정하여 표준내용을 요약$\cdot$소개한다.