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  • 1
    Electronic Resource
    Electronic Resource
    Coplanar amorphous silicon thin film transistor fabricated by inductively coupled plasma chemical vapor deposition (1998)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 84 (1998), S. 4006-4012 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The electrical and optical properties of the hydrogenated amorphous silicon (a-Si:H) films deposited by inductively coupled plasma (ICP) chemical vapor deposition (CVD) have been investigated. The ICP-CVD a-Si:H films deposited at the pressure of 30 mTorr exhibited the hydrogen content of 17 at. %, a photosensitivity of 106 at 100 mW/cm2 and a conductivity activation energy of 0.9 eV. A novel coplanar self-aligned a-Si:H thin film transistor was fabricated using Ni-silicide gate and source/drain electrodes. The simultaneous Ni-silicide formation of gate and source/drain regions using the stacked layers of thin a-Si:H, silicon nitride (SiNx) and a-Si:H reduces the offset length between gate and source/drain, which leads to the coplanar a-Si:H thin film transistor (TFT). This self-aligned a-Si:H TFT exhibited a field effect mobility of 0.44 cm2/V s, threshold voltage of 5.3 V and subthreshold slope of 0.5 V/dec. The coplanar geometry reduces the parasitic capacitance and parasitic resistance compared with those of conventional staggered a-Si:H TFTs. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.368581
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  • 2
    Electronic Resource
    Electronic Resource
    Impact of mesangial IgA deposits in 14th-post operative-day routine renal allograft biopsies (2002)
    Oxford, UK : Blackwell Science Pty
    Nephrology 7 (2002), S. 0 
    Details
    ISSN: 1440-1797
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY: Three hundred fourteen 14th-postoperative-day routine renal allograft biopsies were evaluated together with clinical data. Out of 314 biopsies, mesangial IgA deposits were positive in 122 biopsies (39%). According to Banff classification, the rate of acute rejection was significantly lower in mesangial IgA deposit-positive (IgA(+)) patients (7.4%) than in mesangial IgA deposit-negative (IgA(-)) patients (19.7%) on the 14th postoperative day. Thereafter, rate of biopsy-proven and clinical acute rejection was continuously lower for up to 12 months in IgA(+) patients than in IgA(-) patients. The detection rate of mesangial IgA deposits was significantly higher in human leucocyte antigen (HLA)-well-matched (HLA mismatch number was 〈3) patients than in HLA-poorly matched (HLA mismatch number was ≥3) patients. In HLA-well-matched patients, the serum creatinine levels were significantly lower in IgA(+) patients than in IgA(-) patients after 3 post-transplant months and up to 1 post-transplant year. Follow-up (mean interval: 13 months) allograft biopsies were performed in 34 patients out of 122 IgA(+) patients. In the follow-up biopsies, initially detected mesangial IgA deposits had disappeared in 22 patients (65%) out of 34 patients. Twelve patients (35%) still had mesangial IgA deposits, and all of them had clinical and pathological findings consistent with IgA nephropathy. Patients with continuous mesangial IgA deposits in the follow-up biopsies had a better renal function at 1 year and a higher 5-year graft survival rate compared with patients who lost the initially deposited IgA. The present study demonstrates that long-lasting mesangial IgA deposits in renal transplants prevent allografts from acute rejection, which leads to better graft outcome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-1797.7.s3.1.x
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  • 3
    Electronic Resource
    Electronic Resource
    Impact of mesangial IgA deposits in 14th-postoperative-day routine renal allograft biopsies (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Nephrology 7 (2002), S. 0 
    Details
    ISSN: 1440-1797
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY: Three hundred fourteen 14th-postoperative-day routine renal allograft biopsies were evaluated together with clinical data. Out of 314 biopsies, mesangial IgA deposits were positive in 122 biopsies (39%). According to Banff classification, the rate of acute rejection was significantly lower in mesangial IgA deposit-positive (IgA(+)) patients (7.4%) than in mesangial IgA deposit-negative (IgA(-)) patients (19.7%) on the 14th postoperative day. Thereafter, rate of biopsy-proven and clinical acute rejection was continuously lower for up to 12 months in IgA(+) patients than in IgA(-) patients. the detection rate of mesangial IgA deposits was significantly higher in human leucocyte antigen (HLA)-well-matched (HLA mismatch number was 〈3) patients than in HLA-poorly matched (HLA mismatch number was 〈3) patients. In HLA-well-matched patients, the serum creatinine levels were significantly lower in IgA(+) patients than in IgA(-) patients after 3 post-transplant months and up to 1 post-transplant year. Follow-up (mean interval: 13 months) allograft biopsies were performed in 34 patients out of 122 IgA(+) patients. In the follow-up biopsies, initially detected mesangial IgA deposits had disappeared in 22 patients (65%) out of 34 patients. Twelve patients (35%) still had mesangial IgA deposits, and all of them had clinical and pathological findings consistent with IgA nephropathy. Patients with continuous mesangial IgA deposits in the follow-up biopsies had a better renal function at 1 year and a higher 5-year graft survival rate compared with patients who lost the initially deposited IgA. the present study demonstrates that long-lasting mesangial IgA deposits in renal transplants prevent allografts from acute rejection, which leads to better graft outcome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1797.2002.tb00514.x
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  • 4
    Electronic Resource
    Electronic Resource
    Electric-field-enhanced crystallization of amorphous silicon (1998)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 395 (1998), S. 481-483 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Thin films of polycrystalline silicon are of great importance for large-area electronic applications, providing, for example, the switching electronics in many flat-panel displays. Polycrystalline silicon is typically produced by annealing films of amorphous silicon that have been deposited ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/26711
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  • 5
    Electronic Resource
    Electronic Resource
    Stress Analysis of the Heavy Duty Diesel Engine with Compacted Graphite Iron (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 345-346 (Aug. 2007), p. 897-900 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The combat car used the heavy duty diesel engine must have a large output formaintaining excellent mobility. The compacted graphite iron (CGI) is a material currently understudy for the heavy duty diesel engine demanded for high torque, durability, stiffness, fatigue. Inthis study, three dimensional finite element model of a heavy-duty diesel engine was developed toconduct the stress analysis by using property of CGI. The use of CGI property on the FE model wasexpected to result in improved distribution of distortions and stresses. The loading conditions ofengine are assembly load and operational gas load
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.897.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of Water Height for Modal Characteristics of the Fuel Channel and Stiffness Analysis Using Modal Test Results (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 186-189 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A fuel channel, which is the major structure of a nuclear reactor, is excited by the flow ofcooling water during the operation of the nuclear reactor. This flow of cooling water can causeexcessive vibration of the structure by the resonance. So, in the design process of a nuclear structure,the exact evaluation of the effect of water to modal characteristics and stiffness characteristics is veryimportant to generate an exact analysis model. In this study, the effect of water height for modalcharacterisics of the fuel channel is investigated and the stiffness evaluation of that is conducted usingthe modal test results
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.186.pdf
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  • 7
    Electronic Resource
    Electronic Resource
    Structural Human Impact Analysis on Shooting: Experimental and Simulation (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 3108-3111 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: On the human-rifle system, the human body is affected by the firing impact. The firingimpact will reduce the firing accuracy and change the initial shooting posture. Therefore the study ofbiomechanical characteristics using human-rifle modeling and numerical investigation is needed. Themuscle-skeleton model was developed by the finite element method using beam and spar elements. Inthis study, a structural analysis has been performed in order to investigate the human body impact byfiring a 5.56mm small caliber machine gun. The firing experiments with a standing shooting posturewere performed to verify analytical results. The result of this study shows analytical displacements ofthe human-rifle system and experimental displacements of real firing. In the results, the analyticaldisplacement on the human body is presented
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.3108.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Biomechanical Analysis on the Foot under Normal and Abnormal Gait for Orthotics Design (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 2179-2182 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The foot plays an important role in supporting the body and keeping body balance. Anabnormal walking habit breaks the balance of the human body as well as the function of the foot.The foot orthotics which is designed to consider biomechanics effectively distributes the load of thehuman body on the sole of the foot. In this paper, gait analysis is performed for subjects wearing theorthotics. In this study, three male subjects were selected. The experimental apparatus consists of aplantar pressure analysis system and digital EMG system. The gait characteristics are simulated byADAMS/LifeMOD. The COP (Center of Pressure), EMG and ground reaction force wereinvestigated. As a result of gait analysis, the path of COP was improved and muscle activities weredecreased with orthotics on the abnormal walking subjects
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2179.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    Optimal Placement of Multi Circular Heat Sources of HANARO Irradiation Test (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 2589-2592 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: During fuel irradiation tests of material and fuel rods, all parts of cylindrical shells withmultiple holes act as heat sources due to fission heat and γ-flux. The thermal stress is induced by atemperature difference among the heat sources. In this study, the thermal stress of the cylindricalstructure is minimized by using an optimization method about the geometric variables. The circularshapes of the multi-specimens are investigated. For the thermal analysis of the structure, the finiteelement method code, ANSYS 8.1 is used. A sub-problem approximation method is used for thestructural design optimization
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2589.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Analysis Technology on the Temperature and Thermal Stress of the Cask for Radioactive Material Transport (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 297-300 (Nov. 2005), p. 1666-1671 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The cask is used to transport the radioactive materials. It is required to withstand for the thirty minute under the hypothetical fire accident condition of the 800ı. According to development of the computer simulation, finite element analysis is applied to the calculation widely. But finite element method for the hypothetical accident conditions is not established in domestic regulations. In this study, the temperature and thermal stress analysis of KSC-4 cask under 800ı fire condition isconducted using by ANSYS 7.0 code. In order to analyze finite elements, two-dimensional model of KSC-4 cask is used. Symmetric boundary, convection, and radiation condition are applied in the analysis. As the results, maximum temperature and thermal stress of the KSC-4 cask is evaluated
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/50/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.297-300.1666.pdf
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