Human communication operates over a variety of modalities between humans and computers. When we communicate with other people and with information systems, we exchange or/and retrieve multimedia information. Over the ...Human communication operates over a variety of modalities between humans and computers. When we communicate with other people and with information systems, we exchange or/and retrieve multimedia information. Over the last few years, the Interactive Systems Laboratory at Carnegie Mellon University has developed multimodal systems to empower all of us with increased access to information, and the ability to communicate through diverse media in increasingly varied environments. In this paper, we review our research activities in developing multimodal systems. We show that both verbal and non verbal cues can significantly enhance robustness, flexibility, naturalness and performance of human computer interaction. We demonstrate that multimodal systems can enhance human human communication and cooperation by efficient manipulation of multimedia information.展开更多
Gold（I） thiolate compounds （i.e. AuLSR） are important precursors for the synthesis of atom- ically precise Aun（SR）m nanoclusters. However, the nature of the AuI-SR precursor remains elusive. Here, we report that...Gold（I） thiolate compounds （i.e. AuLSR） are important precursors for the synthesis of atom- ically precise Aun（SR）m nanoclusters. However, the nature of the AuI-SR precursor remains elusive. Here, we report that the Aul0（TBBT）10 complex is a universal precursor for the synthesis of Aun（TBBT）m nanoclusters （where TBBT 4-tertbutylbenzenethiol/thiolate）. Interestingly, the Aul0（TBBT）10 complex is also found to be re-generated through extended etching of the Aun（SR）m nanoclusters with excess of TBBT thiol and O2. The formation of well-defined Aul0（TBBT）10 complex, instead of polymeric AuKSR, is attributed to the bulkiness of the TBBT thiol. Through 1D and 2D NMR charcteriztions, the structure of Aul0（TBBT）10 is correlated with the previously reported X-ray structure, which contains two inter-penetrated Aus（TBBT）5 rings. The photophysical property of Au10（TBBT）10 complex is further probed by femtosecond transient absorption spectroscopy. The acces- sibility of the precise Au10（TBBT）10 precursor improves the efficiency of the synthesis of the Aun（TBBT）m nanoclusters and is expected to further facilitate excellent control and understanding of the reaction mechanisms of nanocluster synthesis.展开更多
文摘Human communication operates over a variety of modalities between humans and computers. When we communicate with other people and with information systems, we exchange or/and retrieve multimedia information. Over the last few years, the Interactive Systems Laboratory at Carnegie Mellon University has developed multimodal systems to empower all of us with increased access to information, and the ability to communicate through diverse media in increasingly varied environments. In this paper, we review our research activities in developing multimodal systems. We show that both verbal and non verbal cues can significantly enhance robustness, flexibility, naturalness and performance of human computer interaction. We demonstrate that multimodal systems can enhance human human communication and cooperation by efficient manipulation of multimedia information.
基金supported by the U.S.National Science Foundation(DMR-1808675)
文摘Gold（I） thiolate compounds （i.e. AuLSR） are important precursors for the synthesis of atom- ically precise Aun（SR）m nanoclusters. However, the nature of the AuI-SR precursor remains elusive. Here, we report that the Aul0（TBBT）10 complex is a universal precursor for the synthesis of Aun（TBBT）m nanoclusters （where TBBT 4-tertbutylbenzenethiol/thiolate）. Interestingly, the Aul0（TBBT）10 complex is also found to be re-generated through extended etching of the Aun（SR）m nanoclusters with excess of TBBT thiol and O2. The formation of well-defined Aul0（TBBT）10 complex, instead of polymeric AuKSR, is attributed to the bulkiness of the TBBT thiol. Through 1D and 2D NMR charcteriztions, the structure of Aul0（TBBT）10 is correlated with the previously reported X-ray structure, which contains two inter-penetrated Aus（TBBT）5 rings. The photophysical property of Au10（TBBT）10 complex is further probed by femtosecond transient absorption spectroscopy. The acces- sibility of the precise Au10（TBBT）10 precursor improves the efficiency of the synthesis of the Aun（TBBT）m nanoclusters and is expected to further facilitate excellent control and understanding of the reaction mechanisms of nanocluster synthesis.
