Documents disponibles écrits par cet auteur

A CMOS transceiver for a multistandard 13.56-MHz RFID reader SoC / Young-Han Kim in IEEE transactions on industrial electronics, Vol. 57 N° 5 (Mai 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1563 - 1572 Titre : A CMOS transceiver for a multistandard 13.56-MHz RFID reader SoC Type de document : texte imprimé Auteurs : Young-Han Kim, Auteur ; Choi, Yong-Chang, Auteur ; Seo, Min-Woo, Auteur Année de publication : 2011 Article en page(s) : pp. 1563 - 1572 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Multistandard  Radio-frequency  identification  (RFID)  Reader  System-on-a-chip  (SoC)  Transceiver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A CMOS transceiver for a multistandard 13.56-MHz radio-frequency identification reader system-on-a-chip (SoC) is designed and fabricated. The SoC consists of an RF/analog part for modulation/demodulation and a digital part for controlling the transceiver functionality. Prior to designing the integrated circuit, pre-experiments using discrete components and commercial tags are performed. With the results, overall functions and specifications are determined. For supporting multistandard, several blocks are designed with digital controls according to the standards. In the transmitter, a digitally controlled amplitude modulator for various modulation indexes and a power control circuit are adopted. In the receiver, a variable gain amplifier and a level-controllable comparator, which are also controlled digitally according to the standard, are introduced. The full transceiver SoC is implemented in the Chartered 0.18-??m CMOS technology. The measurement results of the implemented chip indicate that the designed transceiver operates in a multistandard mode. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332286 [article] A CMOS transceiver for a multistandard 13.56-MHz RFID reader SoC [texte imprimé] / Young-Han Kim, Auteur ; Choi, Yong-Chang, Auteur ; Seo, Min-Woo, Auteur . - 2011 . - pp. 1563 - 1572. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1563 - 1572 Mots-clés : Multistandard  Radio-frequency  identification  (RFID)  Reader  System-on-a-chip  (SoC)  Transceiver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A CMOS transceiver for a multistandard 13.56-MHz radio-frequency identification reader system-on-a-chip (SoC) is designed and fabricated. The SoC consists of an RF/analog part for modulation/demodulation and a digital part for controlling the transceiver functionality. Prior to designing the integrated circuit, pre-experiments using discrete components and commercial tags are performed. With the results, overall functions and specifications are determined. For supporting multistandard, several blocks are designed with digital controls according to the standards. In the transmitter, a digitally controlled amplitude modulator for various modulation indexes and a power control circuit are adopted. In the receiver, a variable gain amplifier and a level-controllable comparator, which are also controlled digitally according to the standard, are introduced. The full transceiver SoC is implemented in the Chartered 0.18-??m CMOS technology. The measurement results of the implemented chip indicate that the designed transceiver operates in a multistandard mode. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332286

Internally and partially heat-integrated distillation system for ternary separation / Young-Han Kim in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5733–5738 Titre : Internally and partially heat-integrated distillation system for ternary separation Type de document : texte imprimé Auteurs : Young-Han Kim, Auteur Année de publication : 2011 Article en page(s) : pp. 5733–5738 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Heat  integrated  distillation  system Résumé : A partially heat-integrated distillation system is introduced for ternary separation. The lower section of the first column and the upper section of the second column in a conventional two column system for a ternary separation are thermally integrated using an internally heat-integrated column. The proposed system has been applied to two example processes, hexane and BTX processes, for performance evaluation, and heat duty savings of 17.1% and 16.7%, respectively, are yielded from the proposed system. However, the comparison of entropy production rate between the proposed and conventional systems is split in the two processes. Though the heat integration is partial in the proposed system, no compressor is required, making the column operation easier than the fully heat-integrated system of binary separation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1021199 [article] Internally and partially heat-integrated distillation system for ternary separation [texte imprimé] / Young-Han Kim, Auteur . - 2011 . - pp. 5733–5738. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5733–5738 Mots-clés : Heat  integrated  distillation  system Résumé : A partially heat-integrated distillation system is introduced for ternary separation. The lower section of the first column and the upper section of the second column in a conventional two column system for a ternary separation are thermally integrated using an internally heat-integrated column. The proposed system has been applied to two example processes, hexane and BTX processes, for performance evaluation, and heat duty savings of 17.1% and 16.7%, respectively, are yielded from the proposed system. However, the comparison of entropy production rate between the proposed and conventional systems is split in the two processes. Though the heat integration is partial in the proposed system, no compressor is required, making the column operation easier than the fully heat-integrated system of binary separation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1021199