A study of user data integrity during acquisition of Android devices

Son, N.,Lee, Y.,Kim, D.,James, J.I.,Lee, S.,Lee, K. Elsevier 2013 Digital investigation Vol.10 No.suppl

At the time of this writing, Android devices are widely used, and many studies considering methods of forensic acquisition of data from Android devices have been conducted. Similarly, a diverse collection of smartphone forensic tools has also been introduced. However, studies conducted thus far do not normally guarantee data integrity required for digital forensic investigations. Therefore, this work uses a previously proposed method of Android device acquisition utilizing 'Recovery Mode'. This work evaluates Android Recovery Mode variables that potentially compromise data integrity at the time of data acquisition. Based on the conducted analysis, an Android data acquisition tool that ensures the integrity of acquired data is developed, which is demonstrated in a case study to test tool's ability to preserve data integrity.

개질 천연 고분자 응집제에 관한 연구

이순홍,김대인,배중돈,안광호 안양대학교 산업기술연구소 2000 自然科學硏究 Vol.7 No.-

수용성 고분자 chitosan은 폐수로부터 현탁물질을 처리하기 위한 효과적인 응집제로 유용하게 사용될 수 있다. chitosan은 충분한 양을 확보할 수 있고 무독성이며 2차 오염이 없어 응집제로서 매우 유용하다. 본 연구의 목적은 고기능성 신소재인 분자량 분획 수용성 고분자 chitosan을 분자량별로 각각 100㎎/ℓ로 제조하여 0.1wt%-kaolin 현탁액, 0.1wt%-egg albumin 제조폐수 및 두부공장폐수에 응집제로 사용하여 최적 적용 조건을 검토하였다. 모든 폐수의 응집을 위한 최적 pH는 5, 제조폐수의 응집처리 후 상등액의 투과율은 모두 95% 이상, 두부공장폐수는 약 80%의 투과율을 나타내었다. chitosan blendmer의 경우 chitosan과 CMC(100㎎/ℓ)의 혼합비가 2 : 1 일 때 응집효과가 가장 뛰어났다. Chitosan modified natural polymers can be used as an effective coagulant for the removal of suspended and dissolved solids from wastewater, and doesn't occurred secondary pollution. The present investigation was to evaluate optimum condition for treatment of suspended and dissolved solids from wastewater using plain chitosan and modified chitosan blendmer. Optimum condition for coagulating kaolin suspension, egg albumin suspension and tofu wastewater was pH 5. The highest transmittance of 0.1wt%-kaolin suspension, 0.1wt%-egg albumin suspension and tofu wastewater showed 98.4%(at Mw 800,000Cs), 96.38%(at Mw 200,000Cs) and 79.62%(at Mw 400,000Cs), respectively. In case of chitosan blendmer (CMC : Cs = 1 : 2) the highest transmittance of 0.1wt%-kaolin suspension, 0.1wt%-egg albumin suspension and tofu wastewater showed 95.94%(at Mw 800,000Cs), 95.06%(at Mw 200,000Cs) and 78.38%(at Mw 400,000Cs), respectively.

동화를 이용한 웹 구성 활동이 유아의 어휘력에 미치는 효과

곽준식,김순자,정정란 진주산업대학교 2002 論文集 Vol.41 No.-

The purpose of this study was to investigate the effect of fairy tale using webbing activation on reading vocabulary capacity of Young Children. The pretest-posttest control group design was used for this research. In the experimental group, webbing activation on contents after reading fairy tale was applied while comparison group followed ordinary class schedule without webbing activation. The subject were 60 of five years old children(31 boys, 29 girls) sampled form two kindergarten in J city located in the southern part of Korea. A total of 10 fairy tale listening sessions were executed. Before and after this program, pretest scores and posttest ones were obtained using vocabulary test. ANCOVA's using pretest as a covariance were applied for the statistical analyses. The results from the analyses were as follows: The children of experimental group using webbing activation showed higher scores in vocabulary test than the control group.

梔子大黃湯과 茵蔯梔子湯 Extract가 白鼠의 肝損傷에 미치는 影響

車宗泰,柳道坤,康舜洙 圓光大學校 韓醫學硏究所 1987 圓光醫科學 Vol.3 No.1

An attempt was made to evaluate the effects of Chijadaewhangtang extract (CDE) and Inchinchijatang extract (ICE) on the recovery of hepatotoxicity induced acute treatment of carbon tetrachloride and results were as follows: 1. When rats of carbon tetrachloride-intoxication were treated with CDE and ICE, the serum aspartate aminotransferase activities released from liver were decreased. In ICE treated group, there were significant decrement after 12 hours and more fast return to normal values in comparison with CDE treated group. 2. In CDE and ICE-treated group, as compared with only carbon tetrachloride-treated group there were inhibition of serum alanine aminotransferase elevation and significant decrement was observed in ICE treated group after 48 hours and CDE treated group after 72 hours. 3. Serum alkaline phosphatase values were significantly diminished in CDE and ICE-treated group compared with only carbon tetrachloride intoxicated group. Meaningful diminution was observed in ICE administered group after 48 hours and CDE administered group after 96 hours. 4. Significant decrement of serum lactate dehydrogenase elevation after 96 hours was observed in CDE and ICE-treated group and more fast recover to normal values. 5. Administration of CDE and ICE shortened prothrombin time of plasma and significant recovery was showed in ICE treated group after 72 hours and CDE treated group after 96 hours. From these results, the recuperative effects of CDE and ICE on carbon tetrachloride-induced hepatotoxicity could be verified experimentally.

멀칭재료 및 施肥條件이 감자(Solanum tuberosum L.)의 生育 및 收量에 미치는 影響

정원복,김기영,정순재,황필성 東亞大學校 大學院 2000 大學院論文集 Vol.25 No.-

This study was conducted to effect of mulching materials and fertilizer application level on Growth and Yield in potato. Mulching materials of Clear polyethylene film and Black plyethylene film, Fertilizer application level of Non-treatment, Chemistry fertilizer treatment, Compromise treatment, Fermentation Compost treatment was following, Percent emergence was increase vinyl mulched treatment plot, Stalk diameter and Fresh weight was increase clear polyethylene film+chemistry fertilizer treatment. Tuber Yield per 10a were significantly affected in the plot of clear polyethylene film+compromise treatment.

Suppression of the Ly6 Antigens Expression on P815 Mastocytoma Cells by Expressing Antisense RNA

Sonn, Chung Hee,Park, Mee Rang,Kim, Young Sang 大韓免疫學會 1993 大韓免疫學會誌 Vol.15 No.-

Ly6항원은 T세포, B세포, 대식세포와 같은 여러 면역기능을 담당하는 세포의 표면에 g1ycosy1 phosphatidylinositol결합형태로 발현된다. 활성화된 대식세포와 T 림파구는 보다 증가된 Ly6항원의 발현을 보여준다. 여러 다른 면역세포에서 이 항원의 정확한 기능을 연구하기 위하여, antisense RNA 기법을 이용하여 Ly6항원의 발현이 억제된 세포를 얻고자 시도하였다. DBA/2생쥐(H-2^(d))에서 기원된 mastocytoma인 P8l5세포를 pNeoSRαⅡ-Ly6(-)백터, 또는 pFRSVSRα-Ly6(-)와 pSV2neo plasmid DNA로 유전자 전달을 행하였다. 15개의 G4l8에 대한 저항성을 갖는 clone을 얻었으며, 이들을 flew cytometry분석과 Southern blot분석을 하였다. Southern blot으로 분석한 6개의 clone들 모두가 Ly6 cDNA를 갖고 있으며, 또한 neomycin resistance유전자를 갖고 있음이 밝혀졌다. 모든 클를을 FACS분석법으로 Ly6항원의 발현을 조사한 결과, 한 클론이 Ly6항원의 발현이 현저히 억제된 것으로 밝혀졌다. 이 클론은 CTL에 대한 민감성과 allo-MHC반응을 유도하는 능력을 비교하는데 이용될 것이다.

Neoliberalism and Democracy in South Korea

Sonn Hochul(손호철) 한국정치학회 2009 한국정치학회보 Vol.43 No.5

이 글의 목적은 한국에서 신자유주의와 정치적 민주주의간의 관계를 분석하고자 하는 것이다. 경제위기 극복을 위해 1979년 최초로 도입된 긴축 등 신자유주의 정책은 경제적 어려움을 심화시킴으로써 일련의 민중항쟁을 유발시켜 박정희정권의 몰락으로 귀결됐다. 따라서 신자유주의는 의도하지 않게 민주주의발전의 기회를 제공했는데 이 기회는 신군부의 쿠테타로 사라지고 말았다. 1990년대 김영삼정부는 금융개방 등 보다 강력한 신자유주의정책을 추구했고 이는 불행히도 1997년 외환위기를 불러왔다. 그러나 이 위기는 대선직전에 터져 나와 역사상 최초의 평화적 정권교체를 가능하게 만들어줬다. 신자유주의가 민주주의발전에 기여를 한 것이다. 그러나 중장기적으로는 한국민주주의에 대한 신자유주의의 부정적 효과가 더 크다. 김대중, 노무현정부는 신자유주의를 무비판적으로 추구함으로써 유례없는 양극화를 가져왔고 이는 민주화세력에 대한 대중적 불신을 불러왔다. 그 결과 권위주의적인 냉전세력의 집권을 가능하게 만들었고 이 정권은 민주주의를 공격하고 있다. 또 신자유주의는 사회적 갈등을 심화시켜 민주주의의 중요한 위협으로 부상하고 있다. The purpose of this paper is to analyze the relationship between neoliberalism and political democracy in Korea. Neoliberal policies introduced to overcome the economic crisis in 1979 accelerated economic hardships, which eventually resulted in the breakdown of the Park Jung Hee regime by triggering popular protests. Neoliberalism unintentionally provided Korea with an opportunity for enhancing democracy, which was unfortunately crushed by another military coup d'etat. In the mid 1990s, the Kim Young Sam government decided to rely on more intense neoliberal policies, which led Korea to the bigger economic crisis in 1997. The crisis materialized just before the election made a large contribution to Korean democracy by making the first peaceful transfer of power between the parties in Korea possible. However, in the medium term, the negative effect of neoliberalism is larger. Kim Dae Jung and his successor, Noh Mu Hyun, transformed Korea into a fully bloomed neoliberal economy, and thereby introduced the unprecedented economic polarization which resulted in landslide victories of the authoritarianism oriented conservative party in the 2007 and the 2008 elections. And the new government has initiated a series of attacks against democracy. Besides, neoliberalism intensifies social conflicts in Korea and thereby is emerging as a major threat to Korean democracy.

Meeresverschmutzungsschaeden udrch Oel und Versicherung in Korea : Aenderungen des Seehandelsrechts im Jahre 1991 und Vorentwurfeines Gesetzes ueber die Sicherstellung von Schadensersatz fuer Oelverschumutzung

Sonn,Ju Chan 한독법률학회 1991 한독법학 Vol.- No.9

Classification of anthropogenic soils in Korea according to WRB

Sonn Yeon-Kyu,Kim Keun-Tae,Hyun Byung-Keun,Hong Suk-Young 한국토양비료학회 2016 한국토양비료학회 학술발표회 초록집 Vol.2016 No.10

The e tTects of Sodium Thiosulfate 00 Metal Toxicity io Wastewater

Sonn Oh,Jungkon Kim,Minjung Lee,Moonho Chung,Kyungho ChOl 한국환경보건학회 2005 한국환경보건학회 학술대회 자료집 Vol.2005 No.-