A Robust and Removable Watermarking Scheme Using Singular Value Decomposition

Di, Ya-Feng,Lee, Chin-Feng,Wang, Zhi-Hui,Chang, Chin-Chen,Li, Jianjun Korean Society for Internet Information 2016 KSII Transactions on Internet and Information Syst Vol.10 No.12

Digital watermarking techniques are widely applied to protect the integrity and copyright of digital content. In a majority of the literature for watermarking techniques, the watermarked image often causes some distortions after embedding a watermark. For image-quality-concerned users, the distortions from a watermarked image are unacceptable. In this article, we propose a removable watermarking scheme that can restore an original-like image and resist signal-processing attacks to protect the ownership of an image by utilizing the property of singular value decomposition (SVD). The experimental results reveal that the proposed scheme meets the requirements of watermarking robustness, and also reestablishes an image like the original with average PSNR values of 59.07 dB for reconstructed images.

A Robust and Removable Watermarking Scheme Using Singular Value Decomposition

( Ya-feng Di ),( Chin-feng Lee ),( Zhi-hui Wang ),( Chin-chen Chang ),( Jianjun Li ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.12

Digital watermarking techniques are widely applied to protect the integrity and copyright of digital content. In a majority of the literature for watermarking techniques, the watermarked image often causes some distortions after embedding a watermark. For image-quality-concerned users, the distortions from a watermarked image are unacceptable. In this article, we propose a removable watermarking scheme that can restore an original-like image and resist signal-processing attacks to protect the ownership of an image by utilizing the property of singular value decomposition (SVD). The experimental results reveal that the proposed scheme meets the requirements of watermarking robustness, and also reestablishes an image like the original with average PSNR values of 59.07 dB for reconstructed images.

Hepatic Re-resection Versus Transarterial Chemoembolization for the Treatment of Recurrent Hepatocellular Carcinoma after Initial Resection: a Systematic Review and Meta-analysis

Wang, Di-Ya,Liu, Lei,Qi, Xing-Shun,Su, Chun-Ping,Chen, Xue,Liu, Xu,Chen, Jiang,Li, Hong-Yu,Guo, Xiao-Zhong Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.13

Background: A systematic review and meta-analysis were performed to compare the post-recurrence survival with hepatic re-resection versus transarterial chemoembolization (TACE) for recurrent hepatocellular carcinoma (HCC) after initial resection. Materials and Methods: All relevant papers were searched via PubMed, EMBASE, and Cochrane Library databases. Hazard ratios (HRs) with 95% confidence intervals (CIs) were pooled using a random-effects model. Subgroup analysis was performed according to country. Sensitivity analysis was performed in studies which clearly reported the recurrent regions, in moderate/high-quality studies, in studies published in full-text form, and in studies published after 2005. Results: In total, twelve papers were included in our study. Five and seven of them were of moderate- and poor-quality, respectively. The overall meta-analysis demonstrated a statistically significantly higher post-recurrence survival in the hepatic re-resection group than in those undergoing TACE (HR=0.64, 95%CI=0.52-0.79, P<0.0001). Heterogeneity was statistically significant and statistical significance remained in the subgroup analysis. Sensitivity analyses were also consistent with the overall analysis. Conclusions: Hepatic re-resection might provide a better post-recurrence survival than TACE for recurrent HCC after initial resection. However, considering the low quality of published studies and the potential bias of treatment selection, further randomized trials should be warranted to confirm these findings.

Pedobacter xinjiangensis sp. now., from the Desert, Xinjiang

( YA Li Tang ),( Yang Wang ),( Shan Ming Ji ),( Kun Di Zhang ),( Jun Dai ),( Lei Zhang ),( Fang Peng ),( Cheng Xiang Fang ) 한국미생물 · 생명공학회 2010 Journal of microbiology and biotechnology Vol.20 No.2

무두 무상지 무심장 기형아의 1례

김영애(YA Kim),이동일(DI Lee),김상도(SD Kim),양성기(SK Yang) 대한산부인과학회 1971 Obstetrics & Gynecology Science Vol.14 No.11

일란성쌍태아중 제2아가 "무두 무심장 무상지 기형"으로 난산을 초래한 1예를 경험하였기에 이를 보고하는 바이다. A case of holocardius acephalus monster associated with single ovum twin combined with dystocia is presented, along with brief of literature.

최근 3년간 입원 환자의 통계적 관찰

이동일(DI Lee),곽태노(TR Kwaik),김영애(YA Kim),노원소(WS Rho),양성기(SK Yang),정성수(SS Chung) 대한산부인과학회 1971 Obstetrics & Gynecology Science Vol.14 No.10

최근 3년간 입원 환자의 통계적 관찰을 통해 자궁경부상피암과 자궁경부선암과의 비율은 10:1이었다. A statistic survey was made on 1,127 in-patient during the period of recent 3 years(1967-1969) in the Ob-Gyn. Dept. of Presbyterian Hospital Taegu. 1) The total number of in-patient(Gyne.) during the period was 1,253(2.7%) of all out-patients of Ob-Gyne. department. 2) The monthly average of in-patient was 35. a tendency that Oct.-Dec. had less patients and March the most was noted. 3) The average duration of admission per patient was 7.9 days. 4) Ratio of in patient, urban against rural was 63.4% : 36.6%. 5) The highest age group was 31-35 which occupied 19.1% of all in-patient. 6) 333(28.4%) of them had Menarche at 16. 7) Diagnostic classification of chief causative disease showed Sq.cell Ca. of the cervix(18.9%), ectopic gestation 140(12.6%), uterine myoma 105(9.3%), ovarian tumor 86(7.6%). 8) Operative procedures mostly used were total hsterectomy 31.4%(313) salpingectomy 12.7%(126). 9) The chief causative disease for total hysterectomy was uterine mayoma 103(32.9%) and chronic P.I.D. 31(9.9%), the second. 10) The age distribution for Sq. cell Ca. of the cervix showed 52(24.8%) of them were between 41-45. By stage it was 11, 95(45.2%) that was most frequent. 11) The stage distribution of those Sq. cell Ca. of the cervix urban against rural showed that stage 1-11 in urban and 11-111 in rural cases prerailed. 12) Ratio of Sq. cell Ca. of the cervix against corpus Ca. was 100:1. 13) Among the 24 cases of chorion epitheliomas about 1/3 had past history of hydatid form mole.

성(誠)은 본래적 진실이고 신(信)은 사람에 의해 실현되는 진실 -유가의 신(信)과 성(誠)에 대한 분석 및 현대 성신관(誠信觀) 확립의 의의

왕아 ( Wang Ya ),서계제 ( Xu Gui Di ) 퇴계학연구원 2011 退溪學報 Vol.129 No.-

최근 몇 년 사이 중국에서는 誠信의 위기가 가속화하고 있다. 이로 인하여 전통적인 성신 문제 특히 유가의 윤리도덕 가운데 성신의 합리성 및 그 역할의 반성에 대한 관심이 일어났다. 이러한 반성을 통하여 유가는 유익한 자양분을 섭취하고 현대 성신 이념도 육성되기를 기대해 본다. 그러나 사람들은 오랫동안 성신을 하나의 개념으로 보는데 익숙해져 있었기 때문에 誠과 信의 차이점을 소홀히 해왔고, 양자가 가지고 있는 각자 특유의 내포된 의미와 규정성을 소홀히 했다. 이로써 誠과 信은 나눠지지 않았고 성신이념의 확립도 어려웠다. 본문에서는 유가의 경전을 통해 信과 誠의 변화 과정을 검토하고 이론적 각도에서 信과 誠이 유가윤리 체계 속에서 갖는 의미와 작용과 지위를 정리하고자 한다. 동시에 실제적으로 誠信이 결핍된 현실 및 역사적 원인을 검토함으로써 유가의 誠, 信과 誠信간의 내재적인 연관성을 찾아내고, 현대 사회 및 역사적 조건아래 誠의 함양과 信의 유지를 통하여 성신 관념을 확립할 수 있는 가능성을 밝혀보려 한다. In recent years, the aggravation of Credit crisis in our society further prompted us to concern the traditional idea of Honesty and Credit. Especially, we deeply reflect on the rationality and efficiency of the Honesty and Credit in Confucian ethics, and hope to learn good to cultivate the concept of today``s Honesty and Credit. For a long time, people used to take them as a whole so that we have neglected their differences. However, it is important to note their own particular meaning. With the help of the Confucian classical works, this article discusses the evolvement of ``credit`` and ``honesty``, and from an academic point, illustrates the meaning, role and status of credit and honesty in Confucian ethics. At the same time, facing current society, the article discusses real and historical reason of Credit crisis to explore the underlying relationships of Confucian Honesty and Credit, and further reveal the feasibility to establish the idea of Honesty and Credit by cultivating Honesty and persisting in Credit in the present time.

A lower cost method of preparing corn stover for Irpex lacteus treatment by ensiling with lactic acid bacteria

Zuo Sasa,Jiang Di,Niu Dongze,Zheng Mingli,Tao Ya,Xu Chuncheng 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.8

Objective: This study investigated a method of preparing corn stover for Irpex lacteus (I. lacteus) treatment to improve its in vitro rumen degradability under non-sterile conditions. Methods: Corn stover was inoculated with Lactobacillus plantarum (L. plantarum), Lactobacillus buchneri (L. buchneri), and an equal mixture of these strains, and ensiled for 0, 3, 7, 14, and 28 days. After each period, a portion of the silage was sampled to assess the silage quality, and another portion of the silage was further treated with I. lacteus at 28°C for 28 d. All the samples were analyzed for fermentation quality, chemical composition, and in vitro gas production (IVGP) as a measure of rumen fermentation capacity. Results: Lactic acid bacteria (LAB) was found to improve the silage quality of the corn stover, and the corn stover silage inoculated with L. plantarum produced more lactic acid and higher IVGP than other silage groups. The I. lacteus colonies flourished in the early stage of corn stover silage, especially on the 3-d corn stover silage inoculated with both L. plantarum and L. buchneri. This led to an 18% decrease in the acid detergent lignin content, and a 49.6% increase in IVGP compared with the raw stover. Conclusion: The combination of ensiling with the mixed LAB inoculation and I. lacteus treatment provided a cost-effective method for the improvement of the IVGP of corn stover from 164.8 mL/g organic matter (OM) to 246.6 mL/g OM.

Protective Effect of Andrographolide on Alleviating Chronic Alcoholic Liver Disease in Mice by Inhibiting Nuclear Factor Kappa B and Tumor Necrosis Factor Alpha Activation

Yuan Song,Xiangqun Wu,Di Yang,Fang Fang,Lingshi Meng,Ya Liu,Weiwei Cui 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.4

Much research has indicated that alcoholic liver disease (ALD) is associated with oxidative stress and inflammation induced by ethanol, and that numerous antioxidants could effectively alleviate such injuries. Moreover, recent studies have identified andrographolide (AD) as having strong anti-inflammatory and antioxidant activities, which can block oxidative damage associated with nuclear factor kappa B (NF-κB)-mediated inflammation. However, the biological role and potential mechanism of AD in its protection against ALD have not been fully characterized. To observe the possible effect of AD, male C57BL/6J mice received ethanol through intragastrical gavage for 12 weeks in this study. The ethanol group was separated into five subgroups: (1) model group (n = 10); (2) silymarin group (0.1 mg/g body weight [BW], n = 10); (3) AD (0.05 mg/g BW) group (n = 10); (4) AD (0.1 mg/g BW) group (n = 10); and (5) AD (0.2 mg/g BW) group (n = 10). Mice in AD groups were treated orally by gavage once per day. The experimental results show that serum aminotransferase, liver lipids, lipid peroxidation, and antioxidant capacities were significantly changed in the model group after alcohol treatment, and the liver tissue histological findings showed pathological changes. Compared with the model group, treatment with AD improved serum aminotransferase, liver function, lipid accumulation, and hepatic reactive oxygen species levels. And AD decreased the hepatic NF-κB and tumor necrosis factor alpha (TNF-α) protein expression of ALD mice. This research demonstrated that AD can alleviate liver pathological injury and oxidative stress in mice exposed to ethanol by decreasing the expression of NF-κB and TNF-α.

Different Association of Manganese Superoxide Dismutase Gene Polymorphisms with Risk of Prostate, Esophageal, and Lung Cancers: Evidence from a Meta-analysis of 20,025 Subjects

Sun, Guo-Gui,Wang, Ya-Di,Lu, Yi-Fang,Hu, Wan-Ning Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.3

Altered expression or function of manganese superoxide dismutase (MnSOD) has been shown to be associated with cancer risk but assessment of gene polymorphisms has resulted in inconclusive data. Here a search of published data was made and 22 studies were recruited, covering 20,025 case and control subjects, for meta-analyses of the association of MnSOD polymorphisms with the risk of prostate, esophageal, and lung cancers. The data on 12 studies of prostate cancer (including 4,182 cases and 6,885 controls) showed a statistically significant association with the risk of development in co-dominant models and dominant models, but not in the recessive model. Subgroup analysis showed there was no statistically significant association of MnSOD polymorphisms with aggressive or nonaggressive prostate cancer in different genetic models. In addition, the data on four studies of esophageal cancer containing 620 cases and 909 controls showed a statistically significant association between MnSOD polymorphisms and risk in all comparison models. In contrast, the data on six studies of lung cancer with 3,375 cases and 4,050 controls showed that MnSOD polymorphisms were significantly associated with the decreased risk of lung cancer in the homozygote and dominant models, but not the heterozygote model. A subgroup analysis of the combination of MnSOD polymorphisms with tobacco smokers did not show any significant association with lung cancer risk, histological type, or clinical stage of lung cancer. The data from the current study indicated that the Ala allele MnSOD polymorphism is associated with increased risk of prostate and esophageal cancers, but with decreased risk of lung cancer. The underlying molecular mechanisms warrant further investigation.