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面对新型电力系统的低惯量趋势，规模庞大而位置分散的温控负荷在参与电力系统频率响应的同时，能够为电网提供虚拟惯量和一次调频支撑将是提升电网频率安全的新思路。为此，以集中-分布式调控框架下的温控负荷集群为研究对象，首先在详细分解控制层调控中心、协调层聚合商、响应层温控负荷终端三者在辅助调频过程中的采样、计算、控制、执行一系列实时任务的基础上，设计了事件触发与时间触发相结合的温控负荷集群终端异步响应机制，实现温控负荷集群功率遵从综合惯性控制律的效果。随后，对所提综合惯性控制下温控负荷集群参与调频的电力系统进行频率响应建模，并进一步利用改进劳斯近似实现系统降阶，从而获得系统频率响应关键特征的时域解析表达式。最后，通过仿真算例验证了所提基于时间触发机制的温控负荷集群综合惯性控制的有效性，并分析了采用改进劳斯近似对系统模型降阶的可行性。

碳捕集电厂是当前最为关键的低碳技术之一，有利于实现电力行业可持续发展，具有广泛的应用前景。从碳捕集电厂的基本原理与发展前景出发，分析了碳捕集电厂的运行特性，综述了含碳捕集电厂的电力系统运行优化、优化规划以及碳捕集电厂的投资效益分析3个方面的研究现状，最后从动态控制支撑低惯量电力系统、支撑高比例可再生能源并网、支撑净零排放电力系统、参与电力和碳交易联合市场、助力综合能源系统等5个方面对碳捕集电厂的研究新动向进行了展望。

随着用户在综合能源系统中的参与度以及系统复杂度的提升，传统的能源枢纽已无法完全满足需求。同时，如何解决环境与负荷的不确定性以及提升能量单元的自我调节能力是亟需考虑的因素。基于此，提出了具备全双工与分布式特性的自能源单元，构建了一种针对多种不确定性以及需求侧响应的自能源综合调度模型并提出相应的能量管理策略。相较于其他模型，所提自能源综合调度模型全面描述了自能源在能源互联网中的运行特点。进一步，采用对环境模型需求较低的增强学习算法，引入不确定性作为状态指标并进行模糊离散化处理，使其可以在无前期预测的情况下解决模型中的多种不确定性带来的影响。仿真结果证明，所提综合能量管理策略具有较高的效率和更好的适用性，能有效实现不确定环境下自能源的最优调配。

以智慧能源与互联网技术相结合为特征的能源互联网已成为国家“十三五”能源领域的重大战略性新兴产业。多能源系统是实现能源互联网规划建设的物理基础。文中首先介绍了能源互联网的三层架构与多能源系统的基本概念，在此基础上从能源互联网价值实现的角度阐述了能源互联网的规划优化及商业模式构建的思路。最后，以山西太原区域能源互联网的规划建设为实例，对太原区域能源互联网的建设背景、潜在价值、关键问题和难点几个方面进行了总结和展望。

【目的】探讨精子DNA碎片率与顶体酶活性检测对男性不育的诊断价值。【方法】回顾性分析近三年 前来本院就诊的902例男性患者的精液常规参数及精子DNA碎片率和顶体酶活性水平。【结果】按DNA碎片率水 平将所有患者分为4组（≤10%，11~20%，21~30%，≥31%），各组患者的年龄、精子浓度、精子总活力、前向运动率以 及顶体酶活性存在统计学差异；按精子顶体酶活性正常与否将患者分为两组后，两组间精子浓度、精子总数、精子 总活力、前向运动率、正常形态率、畸形精子指数、DNA碎片率均有统计学差异。相关性分析显示，DNA碎片率与精 子浓度、精子活力、前向运动率、精子总数及顶体酶活性呈负相关关系，与畸形精子指数呈正相关关系；顶体酶与精 子浓度、精子活力、前向运动率、精子总数、正常形态率呈正相关关系，与头部异常率、畸形精子指数、DNA碎片率负 相关。【结论】精子DNA碎片率及顶体酶活性水平均可以在一定程度上反映精子参数水平，其中DFI更能反映精 子活力水平，顶体酶活性则与精子形态更为相关。两者都是精子质量评估更为客观而全面的指标。

文章首先介绍了新型材料光子晶体的基本特点,然后探讨了含有光子晶体的光器件在光通信系统中的各种应用。

光通信中如何提高传输速率和光谱效率已成为目前研究的热点,采用先进的调制格式是实现上述要求的关键途径,其中正交调制格式就是方法之一。文章介绍了一种研究计算多维多阶正交调制信号误码率的方法,首次推导出了多阶相位调制信号的解析表达式以及基于这种计算方法的仿真结果,并讨论了消光比等参数对误码率的影响。

提出一种基于双包层光纤和耦合器的双包层光纤微弯传感器结构及暗场检测方法。通过理论和仿真分析,建立了双包层光纤弯曲损耗的理论模型;通过对光纤结构参数与传感器灵敏度关系的仿真,获得了实验用光纤最佳结构参数;理论和仿真分析了变形器的最佳周期、齿间距和齿数问题;对双包层光纤微弯传感器及其暗场检测方法进行了实验研究,结果显示,传感器输出光场与光纤形变之间有着较好的线性关系。

塑料光纤以其芯径大、柔韧性好、连接方便和耦合效率高等优点,为光纤到户（FTTH）接入问题提供了很好的解决方案。文章通过MATLAB对塑料光纤连接器中的光纤耦合效率问题进行了模拟仿真。提出了一种用于FTTH的实用塑料光纤连接器结构,该连接器具有连接损耗低、操作简单、安装方便和性价比高等特点。

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Objective To explore the relationship between subjective insomnia and functional prognosis in the chronic phase of patients with cerebrovascular disease. Methods This study is a post-hoc analysis of the multicenter, large-scale prospective study— prospective cohort study on the incidence and outcome of patients with post-stroke depression in China (PRIOD). Fifteen centers with a high number of patients enrolled in the PRIOD were selected, and the patients were followed up by telephone 5 years after the onset of cerebrovascular disease. General information and clinical characteristics were collected. According to the diagnostic criteria of insomnia in the Diagnostic & Statistical Manual of Mental Disorders (Fifth Edition), a questionnaire was compiled to collect data on insomnia and related sleep issues, and to assess the presence of subjective insomnia and sleep duration. The functional prognosis was evaluated by mRS. Multivariate logistic regression was used to analyze the relationship between subjective insomnia and functional prognosis in cerebrovascular disease patients. Results A total of 698 patients were included, of which 319 (45.70%) had subjective insomnia. Only 17.55%(56/319) were taking sleep aids. Logistic regression analysis revealed a significant association between subjective insomnia and functional prognosis in cerebrovascular disease patients: after adjusting for covariates, subjective insomnia patients had a higher risk of functional disability compared to those without insomnia (OR 1.64, 95%CI 1.11-2.42, P=0.013). Subgroup analysis showed that among patients experiencing their first cerebrovascular event at baseline, those with subjective insomnia had a higher risk of functional disability compared to those without insomnia (OR 1.74, 95%CI 1.13-2.68, P=0.013). Conclusions Subjective insomnia is a risk factor for functional disability in the chronic phase of patients with cerebrovascular disease. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Laser Biology / Acta Laser Biology Sinica is the property of Acta Laser Biology Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to explore the mental workload levels of pilots at different stages of airfield traffic pattern, search for electrocardiogram indicators that represent mental workload, a six degree of freedom simulation flight experiment on pentagonal flight tasks for pilots was conducted, the mental workload levels during the flight process was measured, data on various electrocardiogram (ECG) indicators of pilots at different flight stages was collected, and factor analysis was used to construct a pilot mental load model to analyze and verify the characteristics of changes in the mental workload of pilots at different flight stages. The results indicate that compared to heart rate indicators, heart rate variability indicators have higher reliability and validity in measuring pilot mental workload. The mental workload during takeoff and ascent stages is at a relatively low level and shows a decreasing trend. The cognitive load level during the cruise phase is low and the trend of change is smooth. The mental workload level during the approach and landing phase is the highest. In addition, unexpected events can significantly affect the mental workload, causing a significant increase in the pilot􀆳s mental load. [ABSTRACT FROM AUTHOR]