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Development of a power control system for AUVs probing for underwater mineral resources

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Journal of Marine Science and Application 2009年第4期8卷 259-266页

作者： Young Jin KIM hyung Tae KIM Young June CHO Kang Won lee Manufacturing System Division Korea Institute of Industrial Technology Technology Service Division Korea Institute of Industrial Technology

Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.

关键词： power control underwater prober submarine mineral resources power efficiency energy saving

Transient Downregulation of Spl Activity and Protein O-GlcNAcylationby High Dose Nicotinamide Treatment in Human Cells

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Transient Downregulation of Spl Activity and Protein O-GlcNA...

The 8th Asia/Oceania Regional Congress of Gerontology and Geriatrics

作者： So-Young Jang hyung Il lee Hwa Jeong Cho Jung A Han Kyung Min Wang Hyun Tae Kang Eun Seong Hwang Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea Department of Life Science University of Seoul 90 Jeonnong-dongDongdaemun-guSeoul 130-743Republic of Korea

＜正＞Nicotinamide,an amide form of vitamin B3,has been shown to accelerate aging in yeast through inhibition of Sir2,a yeast ***,nicotinamide at mM concentration extends life-span of normal human *** also has been sh...

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Endoscopic ultrasonography in patients with elevated carbohydrate antigen 19-9 of obscure origin

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World Journal of Gastrointestinal Endoscopy 2013年第5期5卷 251-254页

作者： Jae Hoon Cheong Gwang Ha Kim Ji Yoon Moon Bong Eun lee Dong Yup Ryu Dong Uk Kim hyung-Il Seo Geun Am Song Department of Internal Medicine Pusan National University School of Medicineand Biomedical Research InstitutePusan National University HospitalBusan 602-739South Korea Department of Surgery Pusan National University School of MedicineBusan 602-739South Korea

AIM:To evaluate the efficacy of endoscopic ultrasonography(EUS) in patients with elevated carbohydrate antigen(CA) 19-9 levels of obscure ***:Patients who had visited Pusan National University Hospital because of elevated serum CA 19-9 levels,between January 2007 and December 2009,were retrospectively *** had been performed on all subjects,in addition to routine blood tests,endoscopy,abdominal computed tomography(CT) and other clinical exams,which had not revealed any abnormal findings suggestive of the origin of the elevated CA 19-9 ***:Of the 17 patients,gallbladder sludge was detected in 16 patients(94.1%) and common bile duct sludge was observed in 3 patients(17.6%).After the administration of ursodeoxycholic acid to 12 of the patients with gallbladder sludge,CA 19-9 levels normalized in 6 of the patients after a median of 4.5 ***:EUS is a useful diagnostic method for patients with elevated CA 19-9 levels of obscure origin,even if the reason for abnormal levels of this serum marker cannot be determined through prior examinations,including abdominal CT.

关键词： Carbohydrate antigen 19-9 Endoscopic ultrasonography Gallbladder Ursodeoxycholic acid

White Organic Light-emitting Diodes with Proper White CIEx,y Coordinates

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White Organic Light-emitting Diodes with Proper White CIEx,y...

2007亚洲显示国际会议

作者： Ji Hoon Seo Jun Ho Kim Ji Hyun Seo Gun Woo hyung Kum Hee lee Seung Soo Yoon Young Kwan Kim Department of Information Display Hongik University Seoul121-791Korea Center for Organic Materials and Information DevicesHongik UniversitySeoul121-791Korea Center for Organic Materials and Information Devices Hongik University Seoul121-791Korea Department of Electronic EngineeringHongik UniversitySeoul121-791Korea Department of Materials Science and Engineering Hongik University Seoul121-791Korea Dept.of Chemistry Sungkyunkwan University Suwon440-746Korea

White organic light-emitting diodes were fabricated with two separated emissive layers using a blue fluorescent dopant and a red phosphorescent *** L-V characteristics of the device A and B showed maximum luminance of 26 100 and 21 100 cd/m at 14V and the maximum luminous efficiency of the devices showed 11.3 and 9.7 cd/A,respectively. The CIE coordinates of device A and B showed (x=0.27,y=0.35)and (x=0.33,y=0.33) at 10 *** device used BAlq as a host demonstrated proper white CIE coordinates and also showed white emission at operating voltages (4V-14V) without shifting of CIE coordinates.

关键词： White Organic Light-emitting Diodes White CIEx,yCoordinates Blue Fluorescent Dopant Red Phosphorescent Dopant

The Influence of Periodontal Health Status on Oral Health Related Quality of Life among Elderly Koreans

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The Influence of Periodontal Health Status on Oral Health Re...

The 8th Asia/Oceania Regional Congress of Gerontology and Geriatrics

作者： Young Ku Moon-Sung Jang Hae-Young Kim Ho lee Ho-Kyun Na Chong-Pyoung Chung In-chul Rhyu Soo-Boo Han Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK） Dept.of Periodontology School of Dentistry Seoul National UniversityYunkeun-Dong 28Chongro-KuSeoul 110-749Korea（ROK）

＜正＞Purpose:This study was designed to assess the relationship between periodontal health status and the oral health-related quality of life among elderly Koreans.

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Impact of high-resolution HLA matching on outcomes of unrelated donor hematopoietic stem cell transplantation

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Impact of high-resolution HLA matching on outcomes of unrela...

第十届亚太国际骨髓移植会议

作者： Seok Yun Kang Hyun Woo lee Jun Ho Jang Joon Seong Park Jin Hyuk Choi Ho Young Lim Hugh chul Kim Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea Department of Hematology-Oncology Ajou University School of Medicine SuwonKorea

＜正＞Objective: We assessed the impact of high-resolution genotypic results of human leukocyte antigen （HLA） for all major class Ⅰand Ⅱloci between donors and recipients in the outcome of unrelated hematopoietic stem cell transplantation （HSCT）. Method: Between 1999 and 2005, high-resolution genotyping for HLA-A, -B, -C and -DRB1 was performed for 23 unrelated HSCT. All the patients were typed as HLA identical by serologic technique and then they were also typed HLA identical by high resolution technique. Unrelated bone marrow

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Global Genomic Variations of Pathogenic Bacteria <i>Salmonella</i>Reading

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Computational Molecular Bioscience 2021年第3期11卷 57-68页

作者： Woo hyung lee Yein Jeon Jonathan S. Chung Woo Jun Shim Min Jae Shin Seok Gyu Han Seunghan Baek James Kim Jaewoo Kim Paul S. Chung Biotechnology School of Sciences Hong Kong University of Science of Technology Hong Kong China Fuzbien Technology Institute Rockville USA Ernest Mario School of Pharmacy Rutgers University New Brunswick USA College of Letters & Sciences University of California Los Angeles USA Biology Bachelor of Science California Institute of Technology Pasadena USA School of Arts & Sciences Johns Hopkins University Baltimore USA School of Arts & Sciences University of Michigan Ann Arbor USA Youth with Talents Fairfax USA

US Centers for Disease Control and Prevention (CDC) estimates food-borne pathogenic Salmonella bacteria cause about 1.35 million infections, 26,500 hospitalizations, and 420 deaths in the U.S. every year. Outbreaks of multidrug-resistant Salmonella Reading linked mainly to raw turkey products and alfalfa sprouts have accounted for human illness including mortality. Therefore, we downloaded and compared genome sequences of 897 Salmonella Reading isolated from 27 resources in 11 countries at 21 year-points from the National Center for Biotechnology Information database. Isolates were clustered into 10 clades which consisted of 3 major and 7 minor or single node clades. Although 3 major clades included both Europe and American isolates, one clade consisted of 605 North American isolates out of 614 isolates. Evolutionary distance is more related to the continent than the source of isolation. The host source, continent (North America and Europe) and phylogenetic clade were related to the prevalence of isolates encoding Antimicrobial Resistance Genes (ARGs). Prevalence of prophages was greater in bovine and swine isolates than poultry and human isolates and the least prevalence was found in human isolates. Between continents, the prevalence of phage was greater in North Ame- rican isolates than European. The diversity of virulence factors in swine isolates differed from poultry isolate while no difference was found among continents. In conclusion, evolutionary distance is related to isolation host source rather than the continent, and genome features were distinguished by host and cluster. Our genomic analysis implies that Salmonella Reading evolved independently to environments within its lineages.

关键词： Salmonella Serovar Reading Genome Antimicrobial Resistance Genes Virulence Factors Phylogenomic Tree

Analysis of Worm Cutting Characteristics in Whirling Process

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Analysis of Worm Cutting Characteristics in Whirling Process

第五届国际材料与热加工物理模拟及数值模拟学术会议

作者： Young-Moon lee Won-Sik Choi Jae-Hwan Son Kyung-Jun Oh Sun-Il Kim Geon-Woo Park Hee-chul Jung School of Mechanical Engineering Kyungpook National University Daegu S. Korea School of Biosystems Engineering Pusan National University Miryang S. Korea Daegu Machinery Institute of Component & Materials Foundation Daegu S. Korea Daehan Machinery Corporation (DMC) Daegu S. Korea Graduate School of Mechanical Engineering Kyungpook National University Daegu S. Korea

Improved geometrical accuracy and better surface finish of worms are required, especially in automobile industry. To meet this requirement, whirling process has been used in the manufacture of worm. Whirling process is a cutting process in which a series of cutting edges on the whirling ring remove material by turning over the rotating workpiece. In this study, cutting characteristics of the worm in whirling process has been analyzed. The undeformed chip models of front and side cutting edges were established. Using the undeformed chip models and DEFORM software, cutting force analyses are carried out. The calculated cutting force imposed on the tool is nearly the same as the sum of the forces calculated which are separately imposed on the front and side cutting edges.

关键词： Whirling process Undeformed chip model Cutting force DEFORM software

非吸烟非小细胞肺癌患者的比例和临床特征研究

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癌症 2018年第1期37卷 26-32页

作者： Jaeyoung Cho Sun Mi Choi Jinwoo lee Chang-Hoon lee Sang-Min lee Dong-Wan Kim Jae-Joon Yim Young Tae Kim chul-Gyu Yoo Young Whan Kim Sung Koo Han Young Sik Park Department of Internal Medicine Seoul National University Hospital Department of Thoracic and Cardiovascular Surgery Seoul National University Hospital

背景与目的非小细胞肺癌(non?small cell lung cancer, NSCLC)患者中非吸烟患者的比例正在增加,但在韩国,这个人数众多的群体并没有得到很好的治疗。本研究旨对NSCLC非吸烟患者的比例和临床特征进行一个单中心评估。方法我们分析了从201... 详细信息

背景与目的非小细胞肺癌(non?small cell lung cancer, NSCLC)患者中非吸烟患者的比例正在增加,但在韩国,这个人数众多的群体并没有得到很好的治疗。本研究旨对NSCLC非吸烟患者的比例和临床特征进行一个单中心评估。方法我们分析了从2011年6月到2014年12月所有新诊断为NSCLC的1860例患者的临床数据。结果在1860例NSCLC患者中,707例(38%)从不吸烟。非吸烟患者中女性(83.7%vs.5.6%)和腺癌(89.8%vs. 44.9%)的比例均高于吸烟患者。非吸烟患者与吸烟患者相比,中位年龄明显更低(65 vs. 68岁,P<0.001),早期肿瘤比例更高(I–II期,44.5%vs. 38.9%,P=0.015)。与吸烟患者相比,表皮生长因子受体突变(57.8%vs. 24.4%,P<0.001)和间变性淋巴瘤激酶重排(7.8%vs. 2.8%,P<0.001)在非吸烟患者中更常见,而Kirsten大鼠肉瘤病毒癌基因同源染色体的基因突变(5.8%vs. 9.6%,P=0.021)出现频率则较低。在对年龄低、女性、腺癌、体能更好、疾病早期、诊断时无症状、曾接受抗肿瘤治疗以及存在驱动基因突变等的有利影响进行校正后,非吸烟患者的生存期比吸烟患者更长(hazard ratio,0.624,95%CI:0.460–0.848; P=0.003)。结论韩国超过三分之一的NSCLC患者是非吸烟者。NSCLC非吸烟患者与吸烟患者相比,有着不同的临床特征和主要驱动基因突变,总生存期更长。

关键词：非小细胞肺癌非吸烟者表皮生长因子受体 KRAS 预后