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介绍和论述了一种非常有实用前景的基于光纤非线性效应的光参量放大器 （ OPA）及其最新技术进展 .最新发展揭示了它的很多技术特性优于传统的掺铒光纤放大器 （ EDFA）、半导体光放大器 （ SOA）和近年来很热门的光纤拉曼放大器 （ FRA） ,如对信号的调制形式、比特率的完全透明性、相位共轭、超宽的增益带宽、很低的噪声指数和具备优异的全光波长转换功能 .

文章分析了多波长光交换在无光缓存条件下节点的阻塞性能,也分析了不同交换网络规模下多链路共享的阻塞性能,提出了加权偏转交换方式,利用网络的空闲交换容量,疏导业务负荷,以进一步降低阻塞率.

GMPLS是 MPLS向光网络的扩展 ,文章在简要介绍了 MPLS技术的基本思路之后 ,主要介绍了将 IP层与光层融合起来的 GMPLS技术 ,包括 GMPLS中的标签、路由与寻址、信令、链路管理等内容

光分组交换技术的引入 ,改善了带宽的利用率和网络的灵活性 ,延伸了光的透明性 .在光分组交换层中光分组的产生、同步、缓存、再生 ,分组头重写及分光组之间的光功率的均衡成为实现光分组交换的基本技术 ,而多波长方案并不是光分组交换的唯一模式 ,光时分分组交换、光标签交换、波分及混合分组交换、多协议标签交换、光突发分组交换等交换方式的出现必将对未来的通信网产生重要的影响 .

介绍了 VCSEL结构和技术特点 ,它以很高的性能价格比成功地应用于单通道和并行光互联 ,并将在宽带以太网、高速数据通信网中得到广泛的应用 .以 VCSEL为基础器件的高速大容量、高并行处理功能的光互连、光交换系统有着极好的应用前景

文章介绍了基于IP的语音通信（VoIP）中语音质量的评价方法。通过研究语音质量的评价方法来达到对VoIP语音质量的监控,并使之能够保持一定的服务水平是很有必要的。文章还分析了主观评价模型与客观评价模型的实现原理,最后给出了主观评价模型与客观评价模型试验的量化比较结果以及不同客观评价模型试验的量化比较结果。

概述了光纤光栅激光器的特点及其作为光通信系统中的光源所具有的优点 ,综述了单波长、多波长光纤光栅激光器的发展情况 ,并阐述了光纤光栅激光器的应用前景

利用通用分组无线业务（GPRS）技术实现水文数据的采集是水文部门选择的通信手段之一。文章描述了基于GPRS技术的水文数据采集系统的组成,工作站与集中器以及采集器之间的数据传输原理,介绍了监控中心工作站应用软件的设计方法,同时,给出了工作站应用软件的主界面设计图。

基于速率方程理论，给出ＤＢＲ光纤激光器单模运转的条件，并通过对光栅反射特性的分析及一些近似处理，进行了具体设计。对实际制作具有理论指导意义。

本文对熔锥型非对称耦合器进行了理论分析，理论分析表明，这种耦合器具有波长响应平坦的特性，且这个结果能与实验较好地符合。

本文概括了光纤光栅在单频光纤激光器、掺铒光纤放大器、波分复用、色散补偿等方面的应用。

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Copyright of Mycosystema is the property of Mycosystema Editorial Board 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 Mycosystema is the property of Mycosystema Editorial Board 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 Mycosystema is the property of Mycosystema Editorial Board 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.)

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Copyright of Mycosystema is the property of Mycosystema Editorial Board 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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.)

面对全球医学发展的新要求、实施健康中国战略的新任务,如何在新医科建设背景下推进“以 岗位能力与职业需求为导向”的复合型医学人才培养,医学教育改革是关键,构建理论、实践与临床有效衔接的 课程体系,将理论转化为临床能力、强化临床技能的培养是课程建设的重点和难点。该文围绕临床医学专业型 硕士研究生临床技能培训的重要意义、当前困境及应对策略等,探索新医科建设背景下临床医学专业型硕士研 究生临床技能培训的路径,以期为高等医学院临床医学专业型硕士研究生临床技能培训提供借鉴。 [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Ophthalmology & Otorhinolaryngology is the property of Eye & ENT Hospital of Fudan University 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.)

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Copyright of Journal of Isotopes is the property of Journal of Isotopes 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.)

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Copyright of China Surfactant Detergent & Cosmetics (2097-2806) is the property of China Surfactant Detergent & Cosmetics 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.)

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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department 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 Soochow University Philosophy & Social Sciences Edition is the property of Soochow University 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.)

Objective：To explore the related risk factors and predictive value ofacute hydrogen sulfide (H2S) poisoning combined withcentral nervous system (CNS) injury. Methods：Acute H2S poisoning patients withmoderate to severe conditions who were treated in multiple hospitals from January 1，2018，to April 30，2023 were recruited. Based on whether CNS injury was present，the gender，age， laboratory test results，30- day mortality，and neurological function prognosis were analyzed to investigatethe relevant risk factors for acute H2S poisoning combined withCNS injury. The receiver operating characteristic (ROC) curve was used to analyze the efficacy of Lactate (Lac) and neuron-specific enolase (NSE) in predicting acute H2S poisoning combined with CNS injury. Results：Compared with the non-CNS injury group，the CNS group has higher H2S exposure concentration，significantly decreased systolic blood pressure， median glascow score and oxygenation indexupon admission，and significantly increased heart rate. The CNS injury group had a significantly higher incidence of acute respiratory distress syndrome (ARDS) and myocardial injury after admission. The30-day mortality rate was 50%，and the number of patients with mRS score > 2 was significantly increased. In addition，the analysis found that the levels of Lac and NSE upon admission were significantly higher in the CNS group compared to the non-CNS injury group，and the differences were statistically significant. The ROC curve showed that the combination of Lac and NSE was more effective in predicting acute H2S poisoning combined with CNS injurythan a single index，with an area under curve (AUC) of 0.948. Conclusion：Patients with acute H2S poisoning combined with CNS injury have increased incidence of ARDS and myocardial damage，increased 30-day mortality rate，and poor neurological prognosis. In addition，the early elevation ofserum Lac and NSE levels has higher clinical value in evaluating acute H2S poisoning combined with CNS injury. [ABSTRACT FROM AUTHOR]

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Copyright of Mycosystema is the property of Mycosystema Editorial Board 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 Mycosystema is the property of Mycosystema Editorial Board 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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 Acta Edulis Fungi is the property of Acta Edulis Fungi 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 Forest Research is the property of Forest Research 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.)

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