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1,549 results on '"Lee, Jim"'

51. Observation of Saturable and Reverse Saturable Absorption at Longitudinal Surface Plasmon Resonance in Gold Nanorods

Author

Elim, Hendry I., Yang, Jian, Lee, Jim-Yang, Mi, Jun, and Ji, Wei

Subjects
Condensed Matter - Materials Science
Abstract

Saturable and reverse saturable absorption at longitudinal surface plasmon resonance (SPR) in gold nanorods (Au NRs) have been observed using Z-scan and transient absorption techniques with femtosecond laser pulses. At lower excitation irradiances, the wavelength dispersion of saturable absorption has been determined near the longitudinal mode of SPR with a recovery time determined to be a few ten picoseconds on the SPR resonance. With higher excitation irradiances, reverse saturable absorption occurs and becomes dominant. The underlying mechanisms are discussed. Such reversible saturable absorption makes Au NRs an ideal candidate for optical limiting applications., Comment: 13 pages, 3 figures

Published
2006
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55. Understanding fluid self-diversion for oil-field applications through rheology, colloid science and porous flow

Author

Lee, Jim

Subjects
531.1134
Abstract

This PhD is concerned with fluid flow through porous media and fluid diversion in oil reservoirs, through the understanding of rheology, colloid science and porous flow experiments. The aim is to better understand porous flow and apply the findings to address field questions such as how to rheologically deliver fluids to low permeability zones, and what are the effects of shear-thinning and shear-thickening on porous flow. This was approached with both rheometric and porous flow studies on six chemical systems. Rheometric studies were conducted on the Malvern Bohlin CVO and TA AR-1000N rheometers with a cone and plate geometry. A porous flow instrument was designed, built and tested, where Ballotini spheres were used as the porous media. Two Newtonian systems, sucrose solutions and silicone oils were used for the porous flow instrument calibration. Four non- Newtonian systems of varying rheological behaviours were used to examine the effects of rheology on porous flow. These systems were the shear-thinning Xanthan and HMHEC, thixotropic Laponite and shear-thinning and -thickening PEO/silica mixtures. The experimental data were examined with Darcy's Law, the Hagen- Poiseuille equation, the Cross, Herschel Bulkley, and the Power-Law model, Reynolds number and the Kozeny-Carman equation, as well as empirical models proposed by the author. An empirical shear-rate / volumetric flow rate relationship was formulated. This allowed for pressure drop / flow rate relationship predictions based on rheometric viscosity / shear rate data. A new approach to modeling porous flow is also proposed. It is hoped that the findings and proposals can provide a better understanding of porous flow, predict fluid behaviour in porous media, and ultimately translated for field applications, namely the 'heel and toe' problem.

Published
2011

57. The Management Model Development of User Experience Design in Organization : A Case Study for Taiwan Technology Industry

Author

Duh, Henry Been-Lirn, Lee, Jim-Jiunde, Rau, Pei Luen Patrick, Chen, Mu Qing, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, and Rau, Pei-Luen Patrick, editor

Published
2016
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82. Sociability Design Guidelines for the Online Gaming Community: Role Play and Reciprocity

Author

Pan, Yu Chieh, Kuo, Liangwen, Lee, Jim Jiunde, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Schuler, Douglas, editor

Published
2007
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83. The Experiential Preferences of the Online Consumers in Different Internet Shopping Lifestyles Towards Online Shopping Websites

Author

Chu, YenLee, Lee, Jim Jiunde, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Jacko, Julie A., editor

Published
2007
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84. Emotion and Sense of Telepresence: The Effects of Screen Viewpoint, Self-transcendence Style, and NPC in a 3D Game Environment

Author

Lee, Jim Jiunde, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Jacko, Julie A., editor

Published
2007
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85. The Effects of Gender Culture on Mobile Phone Icon Recognition

Author

Chung, Shunan, Chau, Chiyi, Hsu, Xufan, Lee, Jim Jiunde, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Jacko, Julie A., editor

Published
2007
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90. Amorphous and Porous Tungsten Oxide Films for Fast‐Switching Dual‐Band Electrochromic Smart Windows.

Author

Zhang, Shengliang, Peng, Yutao, Zhao, Jing, Fan, Zengjie, Ding, Bing, Lee, Jim Yang, Zhang, Xiaogang, and Xuan, Yimin

Subjects
ELECTROCHROMIC windows, TUNGSTEN oxides, OXIDE coating, PHASE transitions, SURFACE plasmon resonance
Abstract

Dual‐band electrochromic smart windows with dynamic and independent control of near‐infrared (NIR) and visible (VIS) light transmittance can notably reduce the carbon footprint of buildings and improve the occupants' visual and thermal comfort. The dual‐band response is often generated by the phase transition of crystalline electrochromic materials. However, the phase‐transition of crystalline materials is kinetically sluggish, resulting in a long response time. Herein, a fast‐switching dual‐band electrochromic smart window based on a single‐component amorphous and porous tungsten oxide (AP‐WO3) cathode without the slow phase‐transition process is demonstrated. The amorphous and porous structure of WO3 not only significantly improves the ion transport, but also provides a large surface area for Li+ adsorption that gives rise to a tunable surface plasmon resonance (SPR) in the NIR range. Consequently, the single‐component AP‐WO3 film can modulate the NIR and VIS light transmittance independently and effectively through three distinct modes with high optical modulation, fast switching speed, high bistability, and good cycling stability. The prototype dual‐band electrochromic device assembled by AP‐WO3 cathode also delivers an impressive dual‐band electrochromic performance with fast‐switching speed (6.4 s for coloration and 7.2 s for bleaching). [ABSTRACT FROM AUTHOR]

Published
2023
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