查看完整版本: 美国国家纳米科技普及中心2005-2006学术报告

[size=3][color=DarkGreen]Embedding Science and Technology Education into Students' Lifestyles and Technology Choices
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Madhavan, Krishna
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Designing Simulations For Nanoscience Applications

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~'rzMp0O^ [align=center][size=3][color=DarkGreen]University of Illinois at Urbana-Champaign[/color][/size]
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7v#EM|&Mj This seminar will provide an introductory overview on the design of simulations for nanoscience applications, directed towards non-experts.
kI#p&}0Xd'y'iqWFi The seminar will explore the similarities of the simulation hierarchies employed in chemistry and solid-state applications while discussing the following topics:
aP MK2X{ (1) Motivation for simulation methods for nanoscience applications;
x"h]P6@G(G2| (2) Overview of the main simulation techniques (including quantum chemistry, molecular dynamics, kinetic Monte Carlo simulation, and continuum methods) and the chemical and physical properties computed from these techniques;
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(4) The design of simulations for educating students on concepts in nanoscience, including experiences in using interactive software such as macromedia Flash animations and ChemViz to teach high school students, and experiences in teaching computational nanotechnology to college students using the on-line computational resource at the nanoHUB of the Network for Computational Nanotechnology (NCN).
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Creating Research Links between Science at the Nanoscale and Science Education

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q This talk will address what is needed to reduce the gap between current science education and science education that incorporates the ideas in current nanoscience. The ability to manipulate matter at increasingly smaller scales of distance and time has blurred the boundaries between disciplines. As a consequence, it increases the science literacy requirements of both workforce and citizenry. This seminar will discuss what we need to do to tackle successfully the educational implications of technology-derived fundamental changes in science.#lgAnR+L
To prepare scientifically literate individuals, it is not sufficient to increase students’ awareness of the impact of scale on the behavior of matter. Rather, we need to support students in developing integrated understandings of these concepts and how they lead to current ideas about complex phenomena. We also must show that learning takes place when we do so. For this to happen, we need to identify major concepts in nanoscience, turn these concepts into learning goals, develop credible measures of learning, link the learning goals to national standards, and point out where links do not exist to the standards.E9Y\6l^z
Furthermore, this integration will be helped by nanoscience use of computational simulation and modeling, which can provide students with a “hands-on” ability to explore and visualize the nanoscale. Even more important, the interdisciplinarity inherent in the nanoscale supports a stronger focus on “science” as a unique endeavor with a shared view of the interplay among theory, models, and observations. Both these characteristics of the nanoscale—use of computational modeling and interdisciplinarity, have obvious advantages for student retention of learned concepts across STEM areas of study[/color][/size]

Designing Nanocomposite Materials for Solid-State Energy Conversion

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[align=center][size=3][color=DarkGreen]Presented by:[/color][/size]
iaE^Wm [size=3][color=DarkGreen]Professor Tim Sands[/color][/size]
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[size=3][color=DarkGreen]Purdue University
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[size=3][color=DarkGreen]New materials will be necessary to break through today’s performance envelopes for solid-state energy conversion devices ranging from LED-based solid-state white lamps to thermoelectric devices for solid-state refrigeration and electric power generation. The combination of recent materials advances and development of practical “bottom-up” nanofabrication methods offers to provide the degrees of freedom necessary to design practical nanocomposite-based devices that can eclipse the performance of conventional thin-film or bulk devices. Relaxation of elastic mismatch strain at free surfaces in semiconductor nanorods and nanowires allows the accommodation of a broader range of lattice mismatch and band-lineups in coherent nanostructures than is possible in thin-film heterostructures. This new space for “bandgap engineering” provides the opportunity to confine and manipulate electrons, phonons and photons at scales that are comparable to their characteristic wavelengths and scattering lengths. Likewise, nanorod, nanowire and multilayer nanocomposites intimately combine materials with disparate functionalities to
Y0J#gue%Y-X create fundamentally new materials that do not resemble the constituent materials in their transport properties, anisotropy or crystal structures. In this talk, I will illustrate these new opportunities with our recent work in the design of monolithic phosphor-free white light emitters based on nanorod heterostructures, and metal/semiconductor solid-state thermionic energy converters utilizing nitride metal/semiconductor multilayers.
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我的积分也不行！！！:( :(

楼主辛苦了！！！！:)

Thanks for sharing!

不错！谢谢啊！！！:)

辛苦了，楼主！！！！！！！！！！！！！！！！！！

:handshake :handshake 可是下载不全啊
cx,x?,j9w8sQ4w%j 还挺慢的