Today＇s manufacturing cnvironmem forces manufacturing companies to make as many product variations as possible at affordable costs within a short time. Mass customisation is one of most important technologies for com...Today＇s manufacturing cnvironmem forces manufacturing companies to make as many product variations as possible at affordable costs within a short time. Mass customisation is one of most important technologies for companies to achieve their objectives. Efforts to mass customisation should be made on two aspects： （1） To modularize products and make them as less differences as possible; （2） To design manufacturing resources and make them provide as many processes variations as possible. This paper reports our recent work on aspect （2）, i.e. how to design a reconfignrable manufacturing system （RMS） so that it can be competent to accomplish various processes optimally; Reconfignrable robot system （RRS） is taken as an example. RMS design involves architecture design and configuration design, and configuration design is further divided in design analysis and design synthesis. Axiomatic design theory （ADT） is applied to architecture design, the features and issues of RRS configuration design are discussed, automatic modelling method is developed for design analysis, and concurrent design methodology is presented for design synthesis.展开更多
National assessment of speech synthesis systems for Chinese has been regularly carried out since 1994 in China. New guidelines to the assessment activities which aim at promoting the assessment work to be standardizab...National assessment of speech synthesis systems for Chinese has been regularly carried out since 1994 in China. New guidelines to the assessment activities which aim at promoting the assessment work to be standardizable, automatizable (partially) and accessible to the public by computer network were set up in 1997. Two modules. the phonetic module and the linguistic module, are evaluated individually. The phonetic module is evaluated by using speech intelligibility tests at three levels:syllable, word and sentence, and speech natu-ralness tests (in MOS). As for the linguistic module, the text processing ability, which includes word segmentation, polyphonic characters, numerals, years, symbols and metrological units, is examined automatically.展开更多
A national assessment of the performance of speech synthesis systems for Chinese has been carried out yearly since 1994. The quality of synthetic speech of five different systems were evaluated and diagnosed by using ...A national assessment of the performance of speech synthesis systems for Chinese has been carried out yearly since 1994. The quality of synthetic speech of five different systems were evaluated and diagnosed by using speech intelligibility tests. 16 college students (8 male, 8 female) with no experience with synthetic speech were the listeners, they were asked to do open response task by pencilpaper. In addition, speech naturalness was mea-sured by Mean Opinion展开更多
Side-chain engineering has emerged as a highly effective strategy for tailoring the aggregation behavior and charge transport properties of non-fullerene small molecule acceptors(SMAs).In this study,we designed and sy...Side-chain engineering has emerged as a highly effective strategy for tailoring the aggregation behavior and charge transport properties of non-fullerene small molecule acceptors(SMAs).In this study,we designed and synthesized two SMAs,namely BTPSi-Bu and BTPSi-Pr,respectively incorporating tributylsilyloxy and trisopropylsilyloxy groups in their outer positions.Notably,BTPSi-Bu exhibited better planarity,crystallization,and favorable phase separation when paired with PM6 donor polymer compared to its counterpart,BTPSi-Pr.The resulting organic solar cells,utilizing the PM6:BTPSi-Bu blend,demonstrated a remarkable power conversion efficiency of 17.41%and a high open-circuit voltage of 0.859 V.These findings underscore the significance of integrating trialkylsilyloxy side chains into SMAs as a rational design approach for enhancing the performance of photovoltaic systems.展开更多
文摘Today＇s manufacturing cnvironmem forces manufacturing companies to make as many product variations as possible at affordable costs within a short time. Mass customisation is one of most important technologies for companies to achieve their objectives. Efforts to mass customisation should be made on two aspects： （1） To modularize products and make them as less differences as possible; （2） To design manufacturing resources and make them provide as many processes variations as possible. This paper reports our recent work on aspect （2）, i.e. how to design a reconfignrable manufacturing system （RMS） so that it can be competent to accomplish various processes optimally; Reconfignrable robot system （RRS） is taken as an example. RMS design involves architecture design and configuration design, and configuration design is further divided in design analysis and design synthesis. Axiomatic design theory （ADT） is applied to architecture design, the features and issues of RRS configuration design are discussed, automatic modelling method is developed for design analysis, and concurrent design methodology is presented for design synthesis.
文摘National assessment of speech synthesis systems for Chinese has been regularly carried out since 1994 in China. New guidelines to the assessment activities which aim at promoting the assessment work to be standardizable, automatizable (partially) and accessible to the public by computer network were set up in 1997. Two modules. the phonetic module and the linguistic module, are evaluated individually. The phonetic module is evaluated by using speech intelligibility tests at three levels:syllable, word and sentence, and speech natu-ralness tests (in MOS). As for the linguistic module, the text processing ability, which includes word segmentation, polyphonic characters, numerals, years, symbols and metrological units, is examined automatically.
文摘A national assessment of the performance of speech synthesis systems for Chinese has been carried out yearly since 1994. The quality of synthetic speech of five different systems were evaluated and diagnosed by using speech intelligibility tests. 16 college students (8 male, 8 female) with no experience with synthetic speech were the listeners, they were asked to do open response task by pencilpaper. In addition, speech naturalness was mea-sured by Mean Opinion
基金supported by the National Natural Science Foundation of China(Nos.52373168,22175014,12375302)Fundamental Research Funds for the Central Universities(buctrc201822)+1 种基金Beijing Natural Science Foundation(QNTD20,2232057)Natural Science Foundation of Henan province(No.232300420103).
文摘Side-chain engineering has emerged as a highly effective strategy for tailoring the aggregation behavior and charge transport properties of non-fullerene small molecule acceptors(SMAs).In this study,we designed and synthesized two SMAs,namely BTPSi-Bu and BTPSi-Pr,respectively incorporating tributylsilyloxy and trisopropylsilyloxy groups in their outer positions.Notably,BTPSi-Bu exhibited better planarity,crystallization,and favorable phase separation when paired with PM6 donor polymer compared to its counterpart,BTPSi-Pr.The resulting organic solar cells,utilizing the PM6:BTPSi-Bu blend,demonstrated a remarkable power conversion efficiency of 17.41%and a high open-circuit voltage of 0.859 V.These findings underscore the significance of integrating trialkylsilyloxy side chains into SMAs as a rational design approach for enhancing the performance of photovoltaic systems.
