检索结果-南通市图书馆

Earthquake Engineering and Engineering Vibration 2016年第1期15卷 79-90页

作者： Jae-do Kang Hiroshi Tagawa Hyogo Earthquake Engineering Research Center National Research Institute for Earth Science and Disaster Prevention Graduate School of Engineering Hiroshima University

This paper presents results of experimental and numerical investigations of a seesaw energy dissipation system （SEDS） using fluid viscous dampers （FVDs）. To confirm the characteristics of the FVDs used in the tests, harmonic dynamic loading tests were conducted in advance of the flee vibration tests and the shaking table tests. Shaking table tests were conducted to demonstrate the damping capacity of the SEDS under random excitations such as seismic waves, and the results showed SEDSs have sufficient damping capacity for reducing the seismic response of flames. Free vibration tests were conducted to confirm the reliability of simplified analysis. Time history response analyses were also conducted and the results are in close agreement with shaking table test results.

关键词： seesaw energy dissipation system experimental verification shaking table test simplified analysis dynamiccharacteristic

Rare earth double activated phosphors for different applications

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2010年第S1期28卷 1-11页

作者： Mihail Nazarov do Young Noh Department of Materials Science and Engineering Gwangju Institute of Science and Technology1 Oryong-dongBuk-guGwangju 500-712Republic of Korea

For the purpose of development of highly energy-efficient light sources,one needs to design highly efficient green,red and yellow phosphors,which are able to absorb excitation energy and generate *** this contribution,we present our results on producing some efficient phosphors with improved luminescence *** double activation,energy could be transferred from one luminescent activator to the other one,resulting in more efficient or brighter device ***-activators could be added to a host material to change the color of the emitted *** incorporation of Eu3+ or Tb3+ ions into the CaWO4 crystal lattice modified the luminescence spectrum due to the formation of the emission centers that generated the specific red and green *** efficient new red phosphors based on YNbO4 and doped by Eu3+,Ga3+,Al3+ allowed recommending these materials as good candidates for different applications including LED and X-ray intensifying *** double activated TAG with Ce3+ and Eu3+ and for different mole ratios of Ce/Eu,the color temperature changed from 5500 K(0.331,0.322) up to 4200 K(0.370,0.381) and the light became 'warmer'.Application of TAG:Ce,Eu in the light emitting device showed better chromaticity coordinates of luminescence and color rendering index of LEDs.

关键词： optical materials phosphors luminescence rare earths

Tin electronucleation and growth from Sn(II) in nonaqueous solutions based on ethylene glycol: Electrochemical behavior and temperature effect

在线全文

学校读者我要写书评

暂无评论

Transactions of Nonferrous Metals Society of China 2023年

作者： Kiem do Van Nguyen Van Hieu Tu Le Manh Phenikaa Research and Technology Institute (PRATI) A&A Green Phoenix Group Faculty of Electrical and Electronic Engineering Phenikaa University Faculty of Materials Science and Engineering Phenikaa Institute for Advanced Study (PIAS) Phenikaa University

Thermodynamic and kinetic aspects of tin electronucleation and growth processes onto a glassy carbon electrode from SnCl2·2H2O dissolved in ethylene glycol solutions were studied. Typical reduction and oxidation peaks observed in voltammograms have demonstrated the capability of ethylene glycol solutions to electrodeposit Sn. The temperature-dependence of diffusion coefficient values derived from potentiodynamic and potentiostatic studies helped to determine and validate estimations of the activation energy for Sn(II) bulk diffusion. Chronoamperometric results have identified that， the suitable model to describe the early stage of Sn electrodeposition could be composed of Sn three-dimensional nucleation and diffusion-controlled growth and water reduction contributions， which was duly validated by theoretical and experimental approaches. From the model， typical kinetic parameters such as nucleation frequency， A， number density of tin nuclei， N0， and D， were determined. The presence of tin nuclei with excellent quality and their structure were verified using SEM， EDX， and XRD techniques.

关键词：

Establishment of a male fertility prediction model with sperm RNA markers in pigs as a translational animal model

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2022年第6期13卷 1743-1753页

作者： Won-Ki Pang Shehreen Amjad do-Yeal Ryu Elikanah Olusayo Adegoke Md Saidur Rahman Yoo-Jin Park Myung-Geol Pang Department of Animal Science&Technology and BET Research Institute Chung-Ang UniversityAnseongGyeonggi-do 17546Republic of Korea

Background:Male infertility is an important issue that causes low production in the animal *** solve the male fertility crisis in the animal industry,the prediction of sperm quality is the most important *** RNA is the potential marker for male fertility *** hypothesized that the expression of functional genes related to fertilization will be the best target for male fertility prediction *** investigate optimum male fertility prediction marker,we compared target genes expression level and a wide range of field data acquired from artificial insemination of boar ***:Among the genes related to acrosomal vesicle exocytosis and sperm–oocyte fusion,equatorin(EQTN),zona pellucida sperm-binding protein 4(ZP4),and sperm acrosome membrane-associated protein 3 exhibited high accuracy(70%,90%,and 70%,respectively)as markers to evaluate male *** of EQTN-ZP4,ZP4-protein unc-13 homolog B,and ZP4-regulating synaptic membrane exocytosis protein 1(RIMS1)showed the highest prediction value,and all these markers are involved in the acrosome ***:The EQTN-ZP4 model was efficient in clustering the high-fertility group and may be useful for selection of animal that has superior fertility in the livestock *** to the EQTN-ZP4 model,the ZP4-RIMS1 model was more efficient in clustering the low-fertility group and may be useful in the diagnosis of male infertility in humans and other *** appointed translational animal model and established biomarker combination can be widely used in various scientific fields such as biomedical science.

关键词： Male fertility Multiple markers Pig model Prediction model Sperm RNA

Graphene Bridge Heterostructure Devices for Negative Differential Transconductance Circuit Applications

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2023年第2期15卷 161-171页

作者： Minjong Lee Tae Wook Kim Chang Yong Park Kimoon Lee Takashi Taniguchi Kenji Watanabe Min‑gu Kim do Kyung Hwang Young Tack Lee Department of Electrical and Computer Engineering Inha UniversityIncheon 22212Republic of Korea Department of Materials Science and Engineering The University of Texas at DallasRichardsonTX 75080USA Center for Opto‑Electronic Materials and Devices Post‑Silicon Semiconductor InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Department of Physics Kunsan National UniversityGunsan 54150Republic of Korea Advanced Materials Laboratory National Institute for Materials ScienceTsukuba 305‑0044Japan Department of Information and Communication Engineering Inha UniversityIncheon 22212Republic of Korea Division of Nanoscience and Technology KIST SchoolUniversity of Science and Technology(UST)Seoul 02792Republic of Korea Department of Electronic Engineering Inha UniversityIncheon 22212Republic of Korea

Two-dimensional van der Waals(2D vdW)material-based heterostructure devices have been widely studied for high-end electronic applications owing to their heterojunction *** this study,we demonstrate graphene(Gr)-bridge heterostructure devices consisting of laterally series-connected ambipolar semiconductor/Gr-bridge/n-type molybdenum disulfide as a channel material for field-effect transistors(FET).Unlike conventional FET operation,our Gr-bridge devices exhibit nonclassical transfer characteristics(humped transfer curve),thus possessing a negative differential *** phenomena are interpreted as the operating behavior in two series-connected FETs,and they result from the gate-tunable contact capacity of the Gr-bridge ***-value logic inverters and frequency tripler circuits are successfully demonstrated using ambipolar semiconductors with narrow-and wide-bandgap materials as more advanced circuit applications based on non-classical transfer ***,we believe that our innovative and straightforward device structure engineering will be a promising technique for future multi-functional circuit applications of 2D nanoelectronics.

关键词： Graphene bridge Heterostructure device Non-classical transfer characteristics Multi-value logic inverter Frequency tripler

CRISPR/Cas9-mediated gene editing to confer turnip mosaic virus (TuMV) resistance in Chinese cabbage (Brassica rapa)

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2023年第6期10卷 135-143页

作者： Ye-Rin Lee Muhammad Irfan Siddique do-Sun Kim Eun Su Lee Koeun Han Sang-Gyu Kim Hye-Eun Lee Vegetable Research Division National Institute of Horticultural and Herbal ScienceRural Development AdministrationWanju55365Republic of Korea Department of Horticultural Sciences North Carolina State University Mountain Horticultural Crops ResearchExtension Center 455 Research DriveMills RiverNC 28759USA Department of Biological Sciences Korea Advanced Institute for Science and TechnologyDaejeon34141Republic of Korea

Genome editing approaches,particularly the CRISPR/Cas9 technology,are becoming state-of-the-art for trait development in numerous breeding *** advances in improving plant traits are enabled by this influential tool,especially for disease resistance,compared to traditional *** of the potyviruses,the turnip mosaic virus(TuMV),is the most widespread and damaging virus that infects Brassica *** generated the targeted mutation at the eIF(iso)4E gene in the TuMV-susceptible cultivar“Seoul”using CRISPR/Cas9 to develop TuMV-resistant Chinese *** detected several heritable indel mutations in the edited T0 plants and developed T1 through generational *** was indicated in the sequence analysis of the eIF(iso)4E-edited T1 plants that the mutations were transferred to succeeding *** edited T1 plants conferred resistance to *** was shown with ELISA analysis the lack of accumulation of viral ***,we found a strong negative correlation(r=-0.938)between TuMV resistance and the genome editing frequency of eIF(iso)***,it was revealed in this study that CRISPR/Cas9 technique can expedite the breeding process to improve traits in Chinese cabbage plants.

关键词： CRISPR/Cas9 TuMV breeding

Characteristics of Karst Ecosystems of Vietnam and Their Vulnerability to Human Impact

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2001年第3期75卷 325-329页

作者： do TUYET Research Institute of Geology and Mineral Resources Tilanh Xuan Hanoi Vietnam

Karst in Vietnam covers an area of about 60,000 km2, i.e. 18 % of the surface of the country. The country has an annual average temperature of 24°C, an annual average rainfall of 2300 mm and a relative humidity of about 90%. Karst in Vietnam is typified by peak cluster-depression landscapes ranging in elevation from 200 to over 2000 m. Tower and coastal karst landscapes also exit. Because of naturally favourable conditions, karst ecosystems are diverse and very rich. Higher plants (cormophytes) are abundant. They are represented by approximately 2000 species, 908 genera, 224 families, 86 orders and 7 phyla. They form a thick vegetation cover of evergreen tropical rainforest. Knowledge about lower plants is limited. The fauna is rich and diverse. Phyla such as Protozoa, Vermes, Mollusca and Arthropoda are yet ill known. Preliminary results show that the phylum Chordata is represented by 541 species from 80 families, 40 orders and 5 classes. There exist many precious and rare mammals, in particular some endemic species such as Trachypithecus poliocephalus, T. delacouri, Rhinopithecus avanculus, Rhinolophus rouxi, Seotoma dineties and Silurus cuephuongensis. The class Insecta has about 2000 species.

关键词： karst ecosystem Vietnam

Development of dilated cardiomyopathy with a long latent period followed by viral fulminant myocarditis:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第36期10卷 13451-13457页

作者： Seung do Lee Hyo Jin Lee Hye Ree Kim Min Gyu Kang Kyehwan Kim Jeong Rang Park Division of Cardiology Department of Internal MedicineGyeongsang National University School of Medicine and Gyeongsang National University HospitalJinju 52727South Korea

BACKGROUND The clinical course of acute myocarditis ranges from the occurrence of a few symptoms to the development of fatal fulminant ***,fulminant myocarditis causes clinical deterioration very rapidly and *** long-term prognosis of myocarditis is varied,and it fully recovers without leaving any special ***,even after recovery,heart failure may occur and eventually progress to dilated cardiomyopathy(DCM),which causes serious left ventricular *** the case of follow-up observation,no clear guidelines have been *** SUMMARY We report the case of a 21-year-old woman who presented with *** became hemodynamically unstable and showed sustained fatal arrhythmias with decreased heart *** was clinically diagnosed with fulminant myocarditis based on her echocardiogram and cardiac magnetic resonance *** 2 d,she was readmitted to the emergency department under cardiopulmonary resuscitation and received mechanical ventilation and extracorporeal membrane *** implantable cardioverter defibrillator was inserted for secondary *** recovered and was *** to being hospitalized for sudden cardiac function decline and arrhythmia,she had been well for 7 years without any *** was finally diagnosed with dilated *** DCM may develop unexpectedly in patients who have been cured of acute fulminant myocarditis and have been stable with a long period of ***,they should be carefully and regularly observed clinically throughout long-term follow-up.

关键词： Myocarditis Fulminant Dilated cardiomyopathy Outcome Remission Case report

Zeros of Bergman kernels on some Hartogs domains

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Mathematics 2009年第12期52卷 2730-2742页

作者： PARK Jong-do School of Mathematics Korea Institute for Advanced StudyHoegiro 87Dongdaemun-guSeoul 130-722Korea

Explicit Bergman kernels are obtained on some Hartogs *** some special cases, zeros of the kernels are considered.

关键词： Bergman kernel Lu’s conjecture Lu Qikeng domain

SYNTHESIS,CHARACTERIZATION AND THERMAL DEGRADATION KINETICS OF POLY(IMINO ISOPHTHALOYL IMINO (2,4,8,10-TETRAOKSOASPIRO [5,5] UNDEKAN-3,9-DIPROPYLENE))

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2008年第1期26卷 47-53页

作者： Fatih do■an Hakan Akat Ismet Kaya Department of Chemistry Faculty of ScienceEge Universityzmir-TURKEY Department of ChemistryFaculty of Arts and Scienceanakkale Onsekiz Mart Universityanakkale-TURKEY Department of Chemistry Faculty of ScienceEge Universityzmir-TURKEY Department of Chemistry Faculty of Arts and Scienceanakkale Onsekiz Mart Universityanakkale-TURKEY

A new polymer,poly(imino isophthaloyl imino(2,4,8,10-tetraoksoaspiro[5,5]undekan-3,9-dipropylene)) [poly(IPIT)]was synthesized by an interfacial polycondensation *** characterization of poly(IPIT)was conducted by using FT-IR,^(13)C-NMR,TG and DTA *** kinetics of the thermal degradation of poly(IPIT)was investigated by thermogravimetric analysis at different heating *** curves showed that the thermal decomposition of poly(IPIT) occurred in three *** apparent activation energie...

关键词： Thermal degradation Kinetic method Polyamide