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  • Trans Tech Publications, Ltd.  (700)
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  • Trans Tech Publications, Ltd.  (700)
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  • 1
    Online-Ressource
    Online-Ressource
    A Multiplexer with Split Devices for High Channel Isolation
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 644-650 ( 2014-9), p. 3678-3681
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 644-650 ( 2014-9), p. 3678-3681
    Kurzfassung: A multiplexer with split devices for high channel isolation was proposed in this paper. The multiplexer is the most essential circuitry for multi-channel video signal acquisition systems. In the multi-channel applications, high isolation performance is required basically for the efficient signal processing. The noise propagation between channels is unexpected. The split devices technique is employed in the design work. Redundant transistors are inserted between the split cells to realize the noise grounded. This multiplexer is simulated and verified in the commercial CMOS process, and the isolation of more than 70dB was achieved. It has been embedded in a multi-channel analog signal processing system.
    Materialart: Online-Ressource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.644-650
    DOI: 10.4028/www.scientific.net/AMM.644-650.3678
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2014
    ZDB Id: 2251882-4
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    The Model of the Pearl River Water Pollution Based on Reaction Diffusion Equation
    Trans Tech Publications, Ltd. ; 2013
    In:  Applied Mechanics and Materials Vol. 464 ( 2013-11), p. 199-202
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 464 ( 2013-11), p. 199-202
    Kurzfassung: In this paper, we study the Pearl River cadmium spill. Based on the reaction diffusion equations, we can monitor the concentration of pollutants any time. We find that in 20 kilometers distance from pollution sources, the concentration of cadmium is high. At last, we improve the model.
    Materialart: Online-Ressource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.464
    DOI: 10.4028/www.scientific.net/AMM.464.199
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2013
    ZDB Id: 2251882-4
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 3
    Online-Ressource
    Online-Ressource
    Assessment of Compost Maturity by Simple-Barrel Method for Kitchen Waste
    Trans Tech Publications, Ltd. ; 2013
    In:  Applied Mechanics and Materials Vol. 295-298 ( 2013-2), p. 1745-1750
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 295-298 ( 2013-2), p. 1745-1750
    Kurzfassung: Kitchen waste recycling is an environmental friendly measure. Two identical samples of kitchen waste were conducted for composting by the barrel-type of method in this study. Compost produced from these two experiments was analyzed for their physical and chemical properties. No significant difference was found between the compositions of the two kitchen waste samples. The major components of the two kitchen waste samples of this study were water content (averaged 72.7%), followed by combustible constituent (about 25.6%). The carbon-to-nitrogen (C/N) ratio was between 15 and 25. Compost by the simple barrel method had the average C/N ratio of 12. For the simple barrel method, because its enzyme fermentation lasted longer, the maturity of the compost was better. The compost samples had the average germination rate of 95%, indicating the simple barrel composting method definitely has better maturity. When comparing the compost samples produced in this study to the standards given by the Council of Agriculture, Taiwan, the simple barrel compost qualified all the criteria. The simple barrel composting method is a convenient and easy method for recycling and processing organic waste, especially kitchen. The compost products, both solid and liquid, can be used for agricultural purposes.
    Materialart: Online-Ressource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.295-298
    DOI: 10.4028/www.scientific.net/AMM.295-298.1745
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2013
    ZDB Id: 2251882-4
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 4
    Online-Ressource
    Online-Ressource
    Study on Fatty Acid Composition and Variation Analysis of Tung Oils in China by GC/MS
    Trans Tech Publications, Ltd. ; 2012
    In:  Advanced Materials Research Vol. 554-556 ( 2012-7), p. 2018-2023
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 554-556 ( 2012-7), p. 2018-2023
    Kurzfassung: To study the fatty acid composition and analysis the variation among the samples of tung oil collected from Guangxi，Chongqing, Hunan, Hubei and Guizhou Provinces of China．Gas chromatography-mass spectrometry(GC-MS) were employed to determine the fatty acid composition of tung oil．The results show that the main composition of the tung oil in China are n-hexadecanoic acid, linoleic acid, oleic acid, stearic acid, α-octadecatrienoic acid, β-octadecatrienoic acid. Tung oil contains octadecatrienoic acid 72.56～88.59% and polyunsaturated fatty acids 80.26~92.39%. The content of octadecatrienoic acid and polyunsaturated fatty acids in tung oil are different between different regions and different varieties.
    Materialart: Online-Ressource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.554-556
    DOI: 10.4028/www.scientific.net/AMR.554-556.2018
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2012
    ZDB Id: 2265002-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 5
    Online-Ressource
    Online-Ressource
    Assessment of Degree of Maturity of Compost Produced by Different Kitchen Waste Composting Methods
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 652-654 ( 2013-1), p. 1642-1651
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 652-654 ( 2013-1), p. 1642-1651
    Kurzfassung: Kitchen waste in general has high water content with various plant required nutrients and organic matters but is non-toxic, and therefore, it is a good composting material. Three different composting methods were applied for experiments twice, which are mechanical aerobic composting, simple bucket composting, and fast composting processor, by using the same source of kitchen waste as the raw composting material. No significant difference was found between the compositions of the two kitchen waste samples. The major components of the two kitchen waste samples of this study were water content (averaged 72.7%), followed by combustible constituent (about 25.6%). The carbon-to-nitrogen (C/N) ratio was between 15 and 25. Since the operation and parameters of these three composting methods were different, the compositions of compost products were different. Among these three composting methods, compost produced by the simple bucket composting method had the highest water content (an average of 25%), while compost by the fast composting processor had the lowest (about 11%). For C/N ratio, compost produced by the fast composting processor had the highest C/N ratio (an average of 26), compost by the mechanical aerobic composting method the second (about 22), and compost by the bucket composting method the lowest (about 12). It is stipulated by the Council of Agriculture that for the miscellaneous types of compost, the C/N ratio should be between 10 and 20 to ensure that the compost has reached maturity. For the germination test, compost produced by the mechanical aerobic composting method had an average of 84%, compost by the fast composting processor had 81%, and compost by the bucket composting method had an average of 95%. Although all three methods can yield compost with a maturity level greater than the minimum requirement (80%), compost produced by the simple bucket method had better maturity. When comparing the three compost samples produced by different methods to the standards given by the Council of Agriculture, only the simple bucket compost qualified all the criteria.
    Materialart: Online-Ressource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.652-654
    DOI: 10.4028/www.scientific.net/AMR.652-654.1642
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2013
    ZDB Id: 2265002-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 6
    Online-Ressource
    Online-Ressource
    Temperature and Rate-Dependent Constitutive Relationship for Vanadium Alloy V-5Cr-5Ti and Failure Modes
    Trans Tech Publications, Ltd. ; 2010
    In:  Applied Mechanics and Materials Vol. 44-47 ( 2010-12), p. 2336-2340
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 44-47 ( 2010-12), p. 2336-2340
    Kurzfassung: In this work the static and dynamic properties of vanadium alloy V-5Cr-5Ti over a wide range of temperature from 20 to 1000 degree at strain rates ranged from 10-4/s~103/s were studied experimentally under uniaxial quasi-static tension with MTS universal testing machine, uniaxial dynamic compression and tension with split Hopkinson bar system with temperature control. The stress-strain curves of V-5Cr-5Ti at various temperatures and various strain rates were obtained. Experimental data show that V-5Cr-5Ti behaves strain-rate sensitive and temperature dependent, for instance the material parameters yield stress, tensile strength and failure strain. And fracture mode of the material is also dependent on strain-rate and temperature. Based on experimental data the temperature-rate-dependent constitutive relations were established in the form of Johnson-Cook and Cowper-Symonds models which are widely used in numerical simulation of dynamic processes of structures under impact loading. The material microstructures and failure modes were analyzed using optical microscope, TEM etc, and results shows that the yield stress and strength are increased with strain rate. The brittle-ductile transition strain-rate is from 101/s to102/s.
    Materialart: Online-Ressource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.44-47
    DOI: 10.4028/www.scientific.net/AMM.44-47.2336
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2010
    ZDB Id: 2251882-4
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 7
    Online-Ressource
    Online-Ressource
    Size and Composition of Ambient Particulates in the Yueguangshan-Tunnel, Taiwan
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 726-731 ( 2013-8), p. 2074-2078
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 726-731 ( 2013-8), p. 2074-2078
    Kurzfassung: The aim of this study is to investigate the characteristics of size distribution and chemical composition of ambient particulates inside a tunnel. Inside the tunnel, the average concentration of PM 2.5 and PM 2.5-10 was 479 and 444 μg/m 3 respectively. The average mass-size distribution showed a trimodal distribution (25-30, 4.0-5.0, and 2.5 , PM 2.5-10 , and PM 〉 10 were 25%, 40%, and 35% of the total suspended particulates. Because of the poor air ventilation inside the tunnel, the particulates accumulate inside the tunnel. The dominated species of PM 2.5 were EC (average concentration 122.91 μg/m 3 , 25.78%), OC (47.68 μg/m 3 , 10.53%), SO 4 2- (37.42 μg/m 3 , 8.24%), and NO 3 - (35.01 μg/m 3 , 7.95%), and were EC ( 131.77 μg/m 3 , 29.87%), OC (53.74 μg/m 3 , 12.15%), SO 4 2- (31.35 μg/m 3 , 7.11%), and NO 3 - (28.10 μg/m 3 , 6.42%) for PM 2.5-10 . Results from this study showed that the concentrations of coarse particulate matter and several metals are apparently dominated by re-suspended matter rather than emissions from vehicles, e.g., Al, Ca, and Fe. Therefore, ambient particulate matter is caused by not only vehicle exhaust emission but also dusty roads and traffic-generated dust.
    Materialart: Online-Ressource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.726-731
    DOI: 10.4028/www.scientific.net/AMR.726-731.2074
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2013
    ZDB Id: 2265002-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 8
    Online-Ressource
    Online-Ressource
    Study on the Shelf Life Quality of Kiwifruit with Different Maturity
    Trans Tech Publications, Ltd. ; 2014
    In:  Advanced Materials Research Vol. 912-914 ( 2014-4), p. 2006-2009
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 912-914 ( 2014-4), p. 2006-2009
    Kurzfassung: The quality of kiwifruit with three different maturities were studied on the shelf life. Different maturity of kiwifruits were stored at 0±0.5°Cfor 50 days and then taken them at 20±0.5°C for 12 days.Results showed that the kiwifruits with the firmness of 13kg cm -2 can keep a relative good quality during the shelf life.
    Materialart: Online-Ressource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.912-914
    DOI: 10.4028/www.scientific.net/AMR.912-914.2006
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2014
    ZDB Id: 2265002-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 9
    Online-Ressource
    Online-Ressource
    Effect of Different Temperatures on Storage Quality of Fresh-Cut Apples
    Trans Tech Publications, Ltd. ; 2014
    In:  Advanced Materials Research Vol. 941-944 ( 2014-6), p. 1188-1191
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 941-944 ( 2014-6), p. 1188-1191
    Kurzfassung: Taking ‘Fuji’ fresh-cut apples as material, studied on the effect of different temperatures (-2 ̊C,0 ̊C,2 ̊C and 4 ̊C) on storage quality of fresh-cut apples during 25 days. The results indicated that low temperature can significantly keep the storage quality of fresh-cut apples and inhibit browning. Moreover, compared to the other treatment groups, treatment at 0 ̊C better maintained the firmness, color, as well as higher contents of titratable acid and lower MDA content, which showed 0 ̊C can extent storage time.
    Materialart: Online-Ressource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.941-944
    DOI: 10.4028/www.scientific.net/AMR.941-944.1188
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2014
    ZDB Id: 2265002-7
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
    Online-Ressource
    Online-Ressource
    Development and Application of a Sustainable Management System for Construction and Demolition Wastes
    Trans Tech Publications, Ltd. ; 2012
    In:  Applied Mechanics and Materials Vol. 209-211 ( 2012-10), p. 1415-1422
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 209-211 ( 2012-10), p. 1415-1422
    Kurzfassung: The construction and demolition wastes (C & DW) management in Taiwan has been of a major concern due to potentially high risk to the environment. Past annual statistics indicated the number of construction firms regulated by Taiwan Environmental Protection Administration rose from 241 to 8,677 from 2005 to 2011, and their total amount of discharge increased from 110,922.79 tons/year to 1,575,882.30 tons/year; of which, 99.88% were general industrial waste, and 0.12% was hazardous industrial waste. Most of the waste was of the mixed waste of construction and demolition (32.58 - 66.35%), followed by the mixed waste of earthwork or construction (13.14 - 38.08%). In future years, Taiwan is seeing a large amount of C & DW and a low supply of construction-related or natural materials, thus if C & DW could be utilized in a more efficient manner, the issue of secondary environmental pollution would not only be solved but the goal of turning Taiwan into a “recycle-oriented society” where there is “zero waste” could also be achieved. Therefore, the management system and tracking of C & DW have received much research attention in recent years.
    Materialart: Online-Ressource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.209-211
    DOI: 10.4028/www.scientific.net/AMM.209-211.1415
    Sprache: Unbekannt
    Verlag: Trans Tech Publications, Ltd.
    Publikationsdatum: 2012
    ZDB Id: 2251882-4
    Standort Signatur Einschränkungen Verfügbarkeit
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