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Research of IoT Gateway system Using AllJoyn Platform (AllJoyn 플랫폼을 이용한 IoT 게이트웨이 시스템 연구)

  • Lee, Geon-il;Ku, Hong-mo;Jeong, Jae-Il
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.781-782
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    • 2015
  • To use IoT Technology, it needs a platform to connect each devices. With this reason, Many corporations and organizations are trying to develop their own Platform. Among many platforms we select AllJoyn, IoT open source platform developed by Allseen Alliance which is association led by Qualcomm. Using AllJoyn, we transform data gathered from many communication techniques like WiFi, Zigbee and Bluetooth into AllJoyn platform format and deliver it to other AllJoyn devices. Ultimately, we realize gateway system which enables non-AllJoyn devices to communicate with AllJoyn devices.

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One-to-All Broadcasting of Even Networks for One-Port and All-Port Models

  • Kim, Jong-Seok;Lee, Hyeong-Ok;Kim, Sung-Won
    • ETRI Journal
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    • v.31 no.3
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    • pp.330-332
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    • 2009
  • Broadcasting is one of the most important communication primitives used in multiprocessor networks. In this letter, we demonstrate that the broadcasting algorithm proposed by Madabhushi and others is incorrect. We introduce efficient one-to-all broadcasting schemes of even networks for one-port and all-port models. The broadcasting time of the one-port model is 2d-3 and that of the all-port model is d-1. The total time steps taken by the proposed algorithms are optimal.

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Prognostic factors and treatment of pediatric acute lymphoblastic leukemia

  • Lee, Jae Wook;Cho, Bin
    • Korean Journal of Pediatrics
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    • v.60 no.5
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    • pp.129-137
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    • 2017
  • The event-free survival (EFS) for pediatric acute lymphoblastic leukemia (ALL) has shown remarkable improvement in the past several decades. In Korea also, a recent study showed 10-year EFS of 78.5%. Much of the improved outcome for pediatric ALL stems from the accurate identification of prognostic factors, the designation of risk group based on these factors, and treatment of appropriate duration and intensity according to risk group, done within the setting of cooperative clinical trials. The schema of first-line therapy for ALL remains mostly unchanged, although many groups have now reported on the elimination of cranial irradiation in all patients with low rates of central nervous system relapse. Specific high risk subgroups, such as Philadelphia chromosome-positive (Ph+) ALL and infant ALL continue to have significantly lower survival than other ALL patients. The introduction of tyrosine kinase inhibitors into therapy has led to enhanced outcome for Ph+ ALL patients. Infant ALL patients, particularly those with MLL rearrangements, continue to have poor outcome, despite treatment intensification including allogeneic hematopoietic cell transplantation. Relapsed ALL is a leading cause of mortality in pediatric cancer. Recent advances in immunotherapy targeting the CD19 of the ALL blast have shown remarkable efficacy in some of these relapsed and refractory patients. With improved survival, much of the current focus is on decreasing the long-term toxicities of treatment.

Hacking Attacks and Security Measures on All-IP Method and Gateway Method (All-IP방식과 Gateway방식에 대한 해킹공격과 보안대책)

  • Kwon, Se-Hwan;Park, Dea-Woo;Yoon, Kyung-Bae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.265-268
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    • 2011
  • Voice over Internet protocol(VoIP) is support a VoIP service as All-IP method and Gateway method etc. All-IP method to the unit in an Internet environment by applying both the IP service is an VoIP system. Gateway method, using a normal phone call in a way that the Internet is using VoIP. In this paper, scanning and analyze the vulnerability for VoIP systems and networks from All-IP method and the Gateway method In the test bed. All-IP method and Gateway method found in the VoIP vulnerabilities, hacking attack, a denial of service attacks and VoIP spam attacks are carried out. Through analysis of post-attack security measures is proposed.

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Effect of Organic Amendments on Efficacy of Biological Control of Seedling Damping-off of Cucumber with Several Microbial Products (유기물 첨가가 오이 모잘록병에 대한 미생물 제제의 생물학적 방제 효과 증진에 미치는 영향)

  • Lee, Jong-Moon;Do, Eun-Soo;Baik, Su-Bong;Chun, Se-Chul
    • The Korean Journal of Mycology
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    • v.31 no.1
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    • pp.44-49
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    • 2003
  • Several microbial biocontrol products (Greenbiotech Co., Paju, Korea), Green-all T (Trichoderma harzianum), Green-all S(Bacillus sp.) and Green-all G (Streptomyces sp.) were supplemented with organic amendments such as sawdusts and rice hulls to study on efficacy of biological control of seeding damping-off of cucumber caused by Pythium ultimum. Sawdusts amended into potato dextrose agar alone could inhibit in vitro mycelial growth of P. ultimum. All there microbial products of Green-all T, Green-all G and Green-all S significantly reduced seeding damping-off (LSD, P=0.05). However, several amendments such as sawdusts and rice hulls into Green-all T and Green-all S products did not increase efficacy of biological control compared to non-amended treatment. In contrast, supplements of aminodoctor containing several amino acids (Greenbiotech Co., Korea) into Green-all G product significantly increased efficacy of biological control of seeding damping-off, resulting in from 42% to 2% disease incidence in relation to seedling emergence (LSD, P=0.05). Also, amendment of sawdusts into Tricoderma product significantly increased efficacy of biological control as disease index of 5.0 compared to non-amended control of 56.0 in Green-all T product alone. This indicates that organic amendments could increase efficacy of biological control of cucumber seedling damping-off.

Lack of Health Insurance Increases All Cause and All Cancer Mortality in Adults: An Analysis of National Health and Nutrition Examination Survey (NHANES III) Data

  • Cheung, Min Rex
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.4
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    • pp.2259-2263
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    • 2013
  • Background: Public use National Health and Nutrition Examination Survey (NHANES III) and NHANES III linked mortality data were here applied to investigate the association between health insurance coverage and all cause and all cancer mortality in adults. Patients and Methods: NHANES III household adult, laboratory and mortality data were merged. Only patients examined in the mobile examination center (MEC) were included in this study. The sampling weight employed was WTPFEX6, SDPPSU6 being used for the probability sampling unit and SDPSTRA6 to designate the strata for the survey analysis. All cause and all cancer mortalities were used as binary outcomes. The effect of health insurance coverage status on all cause and all cancer mortalities were analyzed with potential socioeconomic, behavioral and health status confounders. Results: There were 2398 sample persons included in this study. The mean age was 40 years and the mean (S.E.) follow up was 171.85 (3.12) person months from the MEC examination. For all cause mortality, the odds ratios (significant p-values) of the covariates were: age, 1.0095 (0.000); no health insurance coverage (using subjects with health insurance), 1.71 (0.092); black race (using non-Hispanic white subjects as the reference group) 1.43, (0.083); Mexican-Americans, 0.60 (0.089); DMPPIR, 0.82, (0.000); and drinking hard liquor, 1.014 (0.007). For all cancer mortality, the odds ratio (significant p-values) of the covariates were: age, 1.0072 (0.00); no health insurance coverage, using with health coverage as the reference group, 2.91 (0.002); black race, using non-Hispanic whites as the reference group, 1.64 (0.047); Mexican Americans, 0.33 (0.008) and smoking, 1.017 (0.118). Conclusion: There was a 70% increase in risk of all cause death and almost 300% of all cancer death for people without any health insurance coverage.

Purification of Deoxycytidine Kinase from Various Human Leukemic Cells by End-product Analog Affinity Chromatography

  • Kim, Min-Young
    • BMB Reports
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    • v.28 no.4
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    • pp.281-289
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    • 1995
  • Homogeneous human deoxycytidine kinase was purified in one step from a variety of spontaneous human leukemic cells (T-ALL, B-ALL, B-CLL, AML, CML), and from cultured T-lymphoblast cells (MOLT-4) using the newly developed affinity medium, $dCp_4$-Sepharose. Starting with an ammonium sulfate fraction, purification was achieved in one step with the kinase being eluted from a column by the end product inhibitor, dCTP. The purified deoxycytidine kinase from T-ALL cells phosphorylated deoxyadenosine and deoxyguanosine, as well as deoxycytidine. The enzyme purified from T-ALL and B-CLL cells yielded one major band with a molecular weight of 52 kDa determined by SDS-polyacrylamide gel electrophoresis. AML and CML cells yielded one 52 kDa band and an extra band of 30 kDa molecular weight. On the other hand, B-ALL and MOLT-4 cells showed a low molecular weight band of 30 kDa only. However, the electrophoretic mobilities of enzymatic activity in 12% non-denaturing gels were identical for the dCyd kinase from all different kinds of leukemic cell lines, except that the B-ALL, B-CLL, and MOLT-4 cell preparations had an extra minor peak, all at the same position. dAdo and dCyd phosphorylating activities comigrated indicating that these activities are all associated with the same protein. Two new methods, a disk implantation method and a nitrocellulose powder method were used with a small amount of enzyme protein to raise polyclonal antibodies against dCyd kinase purified from T-ALL cells.

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Association between Urinary Cadmium and All Cause, All Cancer and Prostate Cancer Specific Mortalities for Men: an Analysis of National Health and Nutrition Examination Survey (NHANES III) Data

  • Cheung, Min Rex;Kang, Josephine;Ouyang, Daniel;Yeung, Vincent
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.1
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    • pp.483-488
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    • 2014
  • Aim: This study employed public use National Health and Nutrition Examination Survey (NHANES III) data to investigate the association between urinary cadmium (UDPSI) and all cause, all cancer and prostate cancer mortalities in men. Patients and Methods: NHANES III household adult, laboratory and mortality data were merged. The sampling weight used was WTPFEX6, with SDPPSU6 applied for the probability sampling unit and SDPSTRA6 to designate the strata for the survey analysis. Results: For prostate cancer death, the significant univariates were UDPSI, age, weight, and drinking. Under multivariate logistic regression, the significant covariates were age and weight. For all cause mortality in men, the significant covariates were UDPSI, age, and poverty income ratio. For all cancer mortality in men, the significant covariates were UDPSI, age, black and Mexican race. Conclusions: UDPSI was a predictor of all cause and all cancer mortalities in men as well as prostate cancer mortality.

A Study on Phased Migration Architecture to All IP Networks to support Mobile Multimedia Services (이동 멀티미디어 서비스를 제공하기 위한 All IP 망 구조연구)

  • Kim, Do-Hyeon
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1459-1462
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    • 2002
  • 3GPP(Third Generation Partnership Project)와 3GPP2 등의 국제 표준화 기구에서는 초기 IMT-2000 망 구조로부터 All IP 망으로 진화할 것으로 예상하고 있다. 이에 본 논문에서는3GPP와 3GPP2를 중심으로 All IP 망의 기존에 제시된 All IP 망의 진화 시나리오를 분석하고, 이를 바탕으로 기존 PSTN/ISDN 연동, VoIP, Mobile IP 등과 같은 새로운 기술, 기존회선 모드 단말기 수용 등을 고려한 All IP 진화 시나리오에 따른 단계별 망 구조를 제시한다.

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