Subjects: Library Science，Information Science >> Information Science submitted time 2023-07-04
Abstract： [Purpose/Significance] “Neck Stuck” technology is the key point that restricts the high-quality development of China’s strategic emerging industries at the present stage. To ensure the independent security control of the industrial chain, it is necessary to identify the “Neck Stuck” technology efficiently and accurately. [Method/Process] This study utilizes patent literature as the main data source. Firstly, key core technologies are selected based on technical co-occurrence network measurements. Secondly, the relationship between latecomer advantages and independent innovation capabilities is comprehensively considered from the perspective of technical gaps and technical-economic security. A “Neck Stuck” technology identification index system is designed across four dimensions: technical value advantage, technical competition advantage, technical monopoly status, and independent controllability. Then, a systematic “Neck Stuck” technology identification model is constructed using the CRITIC-TOPSIS method. Finally, empirical research is conducted in the field of numerical control machine tools. [Result/Conclusion] The results of the identification process using the proposed method in this study reveal the existence of 34 potential “Neck Stuck” technologies in the field of numerical control machine tools in China. These technologies are primarily concentrated in the control or adjustment system, key functional components, turning or boring numerical control machine tools, and digital data processing. A comparison of these findings with the U.S. Commerce Control List confirms the high degree of consistency, thus validating the feasibility and reliability of the proposed method.
Subjects: Biology >> Bioengineering submitted time 2018-04-11 Cooperative journals: 《中国生物工程杂志》
Abstract：为了研究纤维素预处理技术成熟度情况，本文基于多源文献数据利用Fisher-Pry模型对蒸汽爆破法、酸处理法、碱处理法和生物法等主要预处理技术成熟度进行了研究。结果表明，蒸汽爆破法、酸预处理法及碱预处理法从2005年之后快速发展，目前基本处于成熟阶段，但由于这些方法本身存在水解产生抑制性产物、腐蚀性、成本高等缺陷，很难取得进一步的突破。而生物法目前还正处于快速成长阶段，具有很大的前景，经过Fisher-Pry曲线拟合，预计生物法到2043年左右达到成熟。
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