检索结果-南通市图书馆

Asian Herpetological Research 2017年第2期18卷 131-136页

作者： Jaejin PARK Kyo-Soung KOO Il-Hun kim Woo-Jin CHOI Daesik PARK Department of Biology Kangwon National UniversityChuncheonKangwon 24341South Korea National Marine Biodiversity Institute of Korea SeocheonChungnam 33662South Korea Division of Science Education Kangwon National UniversityChuncheonKangwon 24341South Korea

We report the first recorded capture of a blue-banded sea snake（Laticauda laticaudata Linnaeus, 1758, Jobeuntti Kun Badabam in Korean） in South Korea based on one male specimen collected from Marado-ri, Seogwiposi, Jeju-do on 20 October 2016. The morphological features of the lateral nostrils, the much wider ventrals than adjacent dorsals, the horizontally undivided rostral, the two prefrontals, and the uniform black bands on the body indicate that the specimen is L. laticaudata. An analysis of the partial mitochondrial cytochrome b gene sequence indicated that the specimen fits well into the known L. laticaudata phylogenetic group, which confirms that the sea krait is L. laticaudata. Including this report, five species of sea snakes（L. laticaudata, L. semifasciata, Hydrophis platurus, H. cyanocinctus, and H. melanocephalus） have now been reported in Korean waters.

关键词： sea snake Hydrophiinae Laticaudinae blue-banded sea snake Laticauda laticaudata

维普期刊数据库

Citrus black spot detection using hyperspectral imaging

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2014年第6期7卷 20-27页

作者： Daegwan kim Thomas F.Burks Mark A.Ritenour Jianwei Qin Asan Institute for Life Sciences Asan Medical CenterSongpa-guSeoul 138-736Korea Department of Agricultural&Biological Engineering University of FloridaGainesvilleFL 32611USA Indian River Research and Education Center(IRREC) University of FloridaFt.PierceFL 34945USA Environmental Microbial and Food Safety Laboratory(EMFSL) Agricultural Research ServiceU.S.Department of AgricultureBeltsvilleMD 20705USA

This paper describes the development of a hyperspectral imaging approach for identifying fruits infected with citrus black spot(CBS).Hyperspectral images were taken of healthy fruit and those with CBS symptoms or other potentially confounding peel conditions such as greasy spot,wind scar,or *** angle mapper(SAM)and spectral information divergence(SID)hyperspectral analysis approaches were used to classify fruit samples into two classes:CBS or *** classification accuracy for CBS with SAM approach was 97.90%,and 97.14% with *** combination of hyperspectral images and two classification approaches(SID and SAM)have proven to be effective in recognizing CBS in the presence of other potentially confounding fruit peel *** study result can be a reference for the non-destructive detection of fruits infected with citrus black spot.

关键词： citrus black spot hyperspectral imaging spectral angle mapper spectral information divergence imaging processing

Efficacy of moxifloxacin-based sequential therapy for first-line eradication of Helicobacter pylori infection in gastrointestinal disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2015年第16期21卷 5032-5038页

作者： Jae Jin Hwang Dong Ho Lee Ae-Ra Lee Hyuk Yoon Cheol min Shin Young Soo Park Nayoung kim Department of Internal Medicine Seoul National University Bundang Hospital

AIM:To evaluate the efficacy of 14-d moxifloxacinbased sequential therapy as first-line eradication treatment of Helicobacter pylori(***) ***:From December 2013 to August 2014, 161 patients with confirmed *** infection randomly received 14 d of moxifloxacin-based sequential group(MOX-ST group, n = 80) or clarithromycin-based sequential group(CLA-ST group, n = 81) *** infection was defined on the basis of at least one of the following three tests:a positive 13C-urea breath test; histologic evidence of *** by modified Giemsa staining; or a positive rapid urease test(CLOtest; Delta West, Bentley, Australia) by gastric mucosal *** eradication therapy for *** infection was defined as a negative 13C-urea breath test four weeks after the end of eradication *** was defined as good when drug intake was at least 85%.*** eradication rates, patient compliance with drug treatment, adverse event rates, and factors influencing the efficacy of eradication therapy were ***:The eradication rates by intention-to-treat analysis were 91.3%(73/80;95%CI:86.2%-95.4%)in the MOX-ST group and 71.6%(58/81;95%CI:65.8%-77.4%)in the CLA-ST group(P=0.014).The eradication rates by per-protocol analysis were 93.6%(73/78;95%CI:89.1%-98.1%)in the MOX-ST group and 75.3%(58/77;95%CI:69.4%-81.8%)in the CLAST group(P=0.022).Compliance was 100%in both *** adverse event rates were 12.8%(10/78)and 24.6%(19/77)in the MOX-ST and CLA-ST group,respectively(P=0.038).Most of the adverse events were mild-to-moderate in intensity;there was none serious enough to cause discontinuation of treatmentin either *** multivariate analysis,advanced age(≥60 years)was a significant independent factor related to the eradication failure in the CLA-ST group(adjusted OR=2.13,95%CI:1.97-2.29,P=0.004),whereas there was no significance in the MOX-ST ***:The 14-d moxifloxacin-based sequential therapy is effective.M

关键词： Helicobacter pylori First-line eradicationtreatment Moxifloxacin Sequential therapy Eradicationrate

Clinical outcomes and predictive factors in oral corticosteroid-refractory active ulcerative colitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2013年第2期19卷 265-273页

作者： Han Ho Jeon Hyun Jung Lee Hui Won Jang Jin Young Yoon Yoon Suk Jung Soo Jung Park sung Pil Hong Tae Il kim Won Ho kim Jae Hee Cheon Department of Internal Medicine Institute of GastroenterologyYonsei University College of MedicineSeoul 120-752South Korea Brain Korea 21 Project for Medical Science Yonsei University College of MedicineSeoul 120-752South Korea

AIM:To evaluate the clinical outcomes and prognostic factors after intravenous corticosteroids following oral corticosteroid failure in active ulcerative colitis ***:Consecutive patients with moderate to severe ulcerative colitis who had been treated with a course of intravenous corticosteroids after oral corticosteroid therapy failure between January 1996 and July 2010 were recruited at Severance Hospital,Seoul,South *** disease activity was measured by the Mayo score,which consists of stool frequency,rectal bleeding,mucosal appearance at flexible sigmoidoscopy,and Physician Global *** retrospectively evaluated clinical outcomes at two weeks,one month,three months,and one year after the initiation of intravenous corticosteroid *** weeks outcomes were classified as responders or *** month,three month and one year outcomes were classified into prolonged response,steroid dependency,and ***:Our study included a total of 67 eligible *** two weeks,56(83.6%) patients responded to intravenous *** one month,complete remission was documented in 18(32.1%) patients and partial remission in 26(46.4%).Eleven patients(19.7%) were refractory to the *** three months and one year,we found 37(67.3%) and 25(46.3%) patients in prolonged response,ten(18.2%) and 23(42.6%) patients in corticosteroid dependency,8(14.5%) and 6(11.1%) patients with no response,*** 9 patients were underwent elective proctocolectomy within 1 *** duration of oral corticosteroid therapy(> 14 d vs ≤ 14 d,P = 0.049) and lower hemoglobin level(≤ 11.0 mg/dL vs >11.0 mg/dL,P = 0.02) were found to be poor prognostic factors for response at two *** one year outcome,univariate analysis revealed that only a partial Mayo score(≥ 6 vs <6,P = 0.057) was found to be associated with a poor ***:The duration of oral corticosteroid therapy and lower hemoglobin level were strongly associ

关键词： Clinical outcome Prognosis Corticosteroid Ulcerative colitis

18F-FDG高摄取一定意味着预后不良吗？高度微卫星不稳定性结肠癌与PET/CT的18F-FDG高摄取有关

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2024年第1期 123-123页

作者： J.Cha H.kim H.J.Shin M.Lee S.Jun W.J.Kang 郭琪

摘要目的与微卫星稳定性(MSI-stable)肿瘤相比，高度微卫星不稳定性(MSI-high)肿瘤18F-氟脱氧葡萄糖(18FFDG)的摄取量通常更高。一般认为18F-FDG摄取量高与预

关键词：

Human semen quality and the secondary sex ratio

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2017年第3期19卷 374-381页

作者： Jisuk Bae sungduk kim Zhen Chen Michael L Eisenberg Germaine M Buck Louis Department of Preventive Medicine Catholic University of Daegu School of Medicine Daegu 42472 Korea Division of Intramural Population Health Research Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Rockvilie MD 20852 USA Department of Urology Obstetrics and Gynecology Stanford University School of Medicine Stanford CA 94305-5118 USA.

The aim of this study was to evaluate the association between semen quality and the secondary sex ratio （SSR）, defined as the ratio of male to female live births. Our study cohort comprised 227 male partners who were enrolled prior to conception in Michigan and Texas between 2005 and 2009, and prospectively followed through delivery of a singleton birth. The male partners provided a baseline and a follow-up semen sample a month apart. Semen analysis was conducted to assess 27 parameters including five general characteristics, six sperm head measures, 14 morphology measures, and two sperm chromatin stability assay measures. Modified Poisson regression models with a robust error variance were used to estimate the relative risk （RR） and 95% confidence interval （95% CI） of a male birth for each semen parameter, after adjusting for potential confounders. Of the 27 semen parameters, only the percentage of bicephalic sperm was significantly associated with the SSR （2nd VS Ist quartile, RR, 0.65, 95% CI, 0.45-0.95, P= 0.03; 4TM vs 1St quartile, RR, 0.61, 95% CI, 0.38-1.00, P 〈 0.05 before rounding to two decimal places）, suggestive of a higher percentage of bicephalic sperm being associated with an excess of female births. Given the exploratory design of the present study, this preconception cohort study suggests no clear signal that human semen quality is associated with offspring sex determination.

关键词： fertility prospective studies reproduction semen analysis sex ratio sperm

Large cavernous hemangioma in the cecum treated by laparoscopic ileocecal resection

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第26期15卷 3319-3321页

作者： Jung Wook Huh Sang Hyuk Cho Jae Hyuk Lee Hyeong Rok kim Department of Surgery Chonnam National University Hwasun Hospital and Medical School Department of Pathology Chonnam National University Hwasun Hospital and Medical School

A cavernous hemangioma of the cecum is a rare vascular malformation but is clinically important because of the possibility of massive *** report a case of a large cavernous hemangioma with pericolic inf iltration in t... 详细信息

关键词：海绵状血管瘤盲肠腹腔镜治疗微创手术畸形

Toward 6G Communication Networks:Terahertz Frequency Challenges and Open Research Issues

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第3期66卷 2831-2842页

作者： Mohammed H.Alsharif Mahmoud A.M Albreem Ahmad A.A Solyman sunghwan kim Department of Electrical Engineering College of Electronics and Information EngineeringSejong UniversitySeoul05006Korea Department of Electronics and Communications Engineering A’Sharqiyah UniversityIbra400Oman Department of Electrical and Electronics Engineering Istanbul Gelisim UniversityAvcılar34310Turkey School of Electrical Engineering University of UlsanUlsan44610Korea

Future networks communication scenarios by the 2030s will include notable applications are three-dimensional(3D)calls,haptics communications,unmanned mobility,tele-operated driving,bio-internet of things,and the Nanointernet of *** the current scenario in which megahertz bandwidth are sufficient to drive the audio and video components of user applications,the future networks of the 2030s will require bandwidths in several gigahertzes(GHz)(from tens of gigahertz to 1 terahertz[THz])to perform *** on the current radio frequency allocation chart,it is not possible to obtain such a wide contiguous radio spectrum below 90 GHz(0.09 THz).Interestingly,these contiguous blocks of radio spectrum are readily available in the higher electromagnetic spectrum,specifically in the Terahertz(THz)frequency *** major contribution of this study is discussing the substantial issues and key features of THz waves,which include(i)key features and significance of THz frequency;(ii)recent regulatory;(iii)the most promising applications;and(iv)possible open research *** research topics were deeply investigated with the aim of providing a specific,synopsis,and encompassing ***,this article will be as a catalyst towards exploring new frontiers for future networks of the 2030s.

关键词： Wireless networks beyond 5G 6G communications terahertz waves terahertz frequency terahertz communications

Grinding Characteristic of Multi-walled Carbon Nanotubes-alumina Composite Particle

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2012年第6期27卷 1009-1013页

作者： B MUNKHBAYAR Nasan BAYARAA Hafizur REHMAN Junhyo kim Hanshik CHUNG Hyomin JEONG Department of Energy and Mechanical Engineering Gyeongsang National University Department of Marine Engineering Mokpo National Maritime University Department of Energy and Mechanical Engineering Institute of Marine Industry Gyeongsang National University

The synthesis of new materials containing multi-walled carbon nanotubes （MWCNTs） and the microstructure of alumina particles were investigated and characterized. The MWCNTs and alumina particles were ground under both the dry and wet conditions with various rotation speeds （200 - 400 r/min） in planetary ball milling machine, and their combination characteristics were described. The experimental results were examined by scanning electron microscopy （SEM）, X-ray diffraction （XRD）, transmission electron microscopy （TEM） and particle sizing analysis （PSA）. SEM result revealed that the combination of MWCNTs - Alumina particles mixed quite well under both the dry and wet grinding with rotation speed of 400 r/rain. XRD characterization indicated the better result could get in ground samples at a rotation speed of 400 r/min. PSA result showed the particle size decreased with increase the grinding speeds. From the overall results, we observed that the grinding method can be used to synthesize new material with high efficiency.

关键词： carbon nanotubes alumina microstructure nanoparticle planetary ball mill

维普期刊数据库

Synthesis and Characterization of Photosensitive Poly(imide sulfonates) for Fuel Cell Application

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2013年第4期28卷 635-642页

作者：文璞山 LIU Hui kim Jae Hoon LI Xiangdan LEE Myong-Hoon Department of Polymer Science and Technology Research Center for Advanced Materials Development Chonbuk National University College of Chemistry and Material Science South-Central University for Nationalities The Graduate School of Flexible and Printable Electronics Chonbuk National University

The novel sulfonated polyimide membranes were successfully synthesized by thermal imidization with monomers of 4,4＇-（hexafluoroisopropylidene）diphthalic anhydride （6FDA）, 4,4＇-diamino- diphenyl ether-2,2＇-disulfonic acid （SODA） and 3,3 ＇-diaminochalcone （3DAC）. Photosensitive chalcone moiety was introduced to the main chain of copolymers, and the photocrosslinking of resulting copolymer in aqueous electrolyte was attempted. A series of sulfonated copolyimide precursors containing chalcone functional groups in the main chain were prepared with different sulfonation degrees by controlling the molar ratio of SODA, 6FDA and 3DAC. The polymer membranes were prepared from these sulfonated aromatic precursors by solution casting and subsequent thermal imidization. The crosslinking with UV irradiation was attempted in the presence or absence of distilled water. The characterizations of the resulting membrane such as the ion-exchange capacity, water absorption and ionic conductivity were performed with respect to the copolymer compositions and the photocrosslinking conditions.

关键词： sulfonated polyimide photosensitive chalcone polymer electrolyte membrane fuel cell

维普期刊数据库