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宽频振荡紧急控制是保障风电系统安全运行的“兜底”措施之一。由于风电系统非线性强度大及运行工况多变，难以建立宽频振荡在线风险评估的解析模型。为此，提出了基于数据驱动的宽频振荡风险在线评估方法及紧急控制策略。首先，设计了能够应对宽频振荡多模态和时变特征的宽频相量检测算法，为后续宽频振荡特征评估提供数据支撑；其次，利用最大李雅普诺夫指数作为宽频振荡动态演化趋势的量化指标，并根据风电机组模态阻抗的负电阻效应在线辨识宽频振荡源；然后，融合宽频振荡特征辨识结果，提出宽频振荡风险在线评估策略，进一步将评估结果应用于宽频振荡紧急控制；最后，通过RTDS硬件在环平台验证所提方法的有效性和可靠性。

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Since the first proposal and development in 2017, “home⁃based care beds”have become a vital layout of China’s pension service during the 14th Five⁃Year Plan stage, attracting strong social attention.“Home ⁃ based care beds”is an innovative pension service model that provides integrated home ⁃ based care for older adults through combining medical care, nursing care, and various resource integration for older adults who live at home. It has advantages in alleviating the pressure of family care, improving the standardization of family care, and reducing the economic burden of home ⁃ based care for older adults. However, problems such as insufficient standardization construction, insufficient integration of healthcare and nursing resources, pending optimization of related product and platform, and incomplete subsidy channels remained. This article briefly summarizes and proposes countermeasures based on academic research and practical situations in various regions: strengthening theoretical research efforts and constructing a policy support system for home⁃based care beds while accelerating its standardization construction, promoting the orderly integration of medical and pension care resources. This study also recommends increasing publicity efforts and strengthening the intelligent technology transformation and the construction of information platforms. Lastly, it is essential to further the construction of the correlation between home⁃based care beds and long⁃term care insurance to promote its steady progress from an operational level, facilitating the high⁃quality development of China’s healthcare industry. [ABSTRACT FROM AUTHOR]

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乳房 再造术已是乳腺癌综合治疗的重要组成部分, 而背阔肌肌 (皮) 瓣在即刻乳房再造术中的应用受到广大学者 和外利医帅的关注。现描述背阔肌的精细解刹, 探讨背阔肌肌 (皮) 瓣即刻乳房再造术的历史和演变, 以及该领域的临床研究与 新进展, 总结术后并发症及预防。其中, 新进展部分主要介绍该皮瓣联合即刻脂肪移植术以及内窥镜和机器人技术在本领域的 应用。 [ABSTRACT FROM AUTHOR]

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