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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.
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.
ER-associated CTRP1 regulates mitochondrial fission via interaction with DRP1
Sonn Seong Keun,Seo Seungwoon,Yang Jaemoon,오기숙,Chen Hsiuchen,Chan David C.,이건수,Lee Kyung S.,양영,Oh Goo Taeg 생화학분자생물학회 2021 Experimental and molecular medicine Vol.53 No.-
C1q/TNF-related protein 1 (CTRP1) is a CTRP family member that has collagenous and globular C1q-like domains. The secreted form of CTRP1 is known to be associated with cardiovascular and metabolic diseases, but its cellular roles have not yet been elucidated. Here, we showed that cytosolic CTRP1 localizes to the endoplasmic reticulum (ER) membrane and that knockout or depletion of CTRP1 leads to mitochondrial fission defects, as demonstrated by mitochondrial elongation. Mitochondrial fission events are known to occur through an interaction between mitochondria and the ER, but we do not know whether the ER and/or its associated proteins participate directly in the entire mitochondrial fission event. Interestingly, we herein showed that ablation of CTRP1 suppresses the recruitment of DRP1 to mitochondria and provided evidence suggesting that the ER–mitochondrion interaction is required for the proper regulation of mitochondrial morphology. We further report that CTRP1 inactivation-induced mitochondrial fission defects induce apoptotic resistance and neuronal degeneration, which are also associated with ablation of DRP1. These results demonstrate for the first time that cytosolic CTRP1 is an ER transmembrane protein that acts as a key regulator of mitochondrial fission, providing new insight into the etiology of metabolic and neurodegenerative disorders.
Sonn, Seongkeun,Jeong, Yeontae,Rhee, Kunsoo Wiley Subscription Services, Inc., A Wiley Company 2009 Molecular reproduction and development Vol.76 No.6
<P>Nek2 is a mitotic kinase with multiple cellular functions involving phosphorylation of diverse substrates. Suppression of Nek2 in early mouse embryos has been shown to arrest development at the 4-cell stage with defects in mitotic spindle assembly as well as in interphase nuclear morphology. In the present study, we suppressed expression of two Nek2 centrosomal substrates, Nip2 and C-Nap1, in early mouse embryos. The development of the Nip2-suppressed embryo was arrested at the 4-cell stage with mitotic defects in the blastomeres. In contrast, C-Nap1 suppression did not produce a visible phenotype. The phenotypic similarities of the Nip2- and Nek2-suppressed embryos suggest that Nip2 may be a substrate of Nek2 that is required for mitotic spindle assembly in early mouse embryos. Mol. Reprod. Dev. 76: 587–592, 2009. © 2008 Wiley-Liss, Inc.</P>