Topic
Character (mathematics)
About: Character (mathematics) is a research topic. Over the lifetime, 46723 publications have been published within this topic receiving 411412 citations.
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TL;DR: The results reveal that the studies of Kekulé and non-KekulÉ structures qualitatively describe the radical character of alternant PAHs, which could be useful when electronic structure calculations are infeasible due to the expensive computational cost.
Abstract: We investigate the role of Kekule and non-Kekule structures in the radical character of alternant polycyclic aromatic hydrocarbons (PAHs) using thermally-assisted-occupation density functional theory (TAO-DFT), an efficient electronic structure method for the study of large ground-state systems with strong static correlation effects. Our results reveal that the studies of Kekule and non-Kekule structures qualitatively describe the radical character of alternant PAHs, which could be useful when electronic structure calculations are infeasible due to the expensive computational cost. In addition, our results support previous findings on the increase in radical character with increasing system size. For alternant PAHs with the same number of aromatic rings, the geometrical arrangements of aromatic rings are responsible for their radical character.
65 citations
65 citations
Patent•
10 Mar 1993
TL;DR: In this article, a character size is changed so that the horizontal length of an input character string falls within the printing area and all the characters of the character string extending in all the lines fall within a printing area.
Abstract: A label printing apparatus includes a liquid crystal display unit for displaying an input character string and a message corresponding to each operation stage, a printing unit for printing a character string on each label, a storage unit for storing each data, and a CPU for performing each processing and control. Label information specifying sizes and the like of various types of labels, sheet numbers corresponding to the label information, character size information defining character sizes, and the like are stored in the storage unit. The CPU specifies label information corresponding to the sheet number and selects a maximum printable character size from a character size table as an initial value on the basis of a printing area. The character size is changed so that the horizontal length of an input character string falls within the printing area. The character size is further changed so that all the characters of the character string extending in all the lines fall within the printing area. An optimal character size is finally selected, and actual printing is performed on each label using this character size.
65 citations
65 citations
23 Aug 2004
TL;DR: In this paper, a hybrid method for Chinese and Japanese word segmentation is presented, where word level information is useful for known words, while character level information was used for unknown words, and the method utilizes both these two types of information in order to effectively handle known and unknown words.
Abstract: In this paper, we present a hybrid method for Chinese and Japanese word segmentation Word-level information is useful for analysis of known words, while character-level information is useful for analysis of unknown words, and the method utilizes both these two types of information in order to effectively handle known and unknown words Experimental results show that this method achieves high overall accuracy in Chinese and Japanese word segmentation
65 citations