A testing method for the temperature difference of the helix SWS

机译：螺旋SWS温差的测试方法

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摘要

We proposed a novel testing method for the temperature difference distribution between the helix and the shell of the helix slow-wave structure (SWS). The thermal resistance of the SWS can be deduced by the temperature difference. A distributed micro fiber Bragg grating (FBG) sensor array and the thermocouple sensors are designed to measure the temperature distribution of the helix and the shell respectively in SWS when heating the helix by the electricity. An experiment on an X-band SWS was made and the thermal resistance was deduced which makes the temperature distribution model of the SWS more accurate.

机译：我们提出了一种新的测试方法，用于螺旋和螺旋慢波结构（SWS）的螺旋和壳之间的温差分布。可以通过温差推导出SWS的热阻。分布式微纤维布拉格光栅（FBG）传感器阵列和热电偶传感器旨在分别在电力加热螺旋时测量SWS中螺旋和壳的温度分布。制造X波段SWS的实验，推导出热阻，使SWS的温度分布模型更加准确。

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《IEEE International Vacuum Electronics Conference》|2015年||共2页
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Pu Wei; Guodong Wang; Cheng Cheng; Xiaohan Sun; Bo Chen; Jinjun Feng; Tiechang Yan; Yanmei Wang; Dongya Lv;
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中图分类真空电子技术;
关键词
helix traveling-wave tubes; slow-wave structure; temperature difference; thermal resistance;

机译：螺旋行波管;慢波结构;温差;热阻;

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2. Intraspecific differences in endurance swim performance and cardiac size in sockeye salmon (Oncorhynchus nerka) parr tested at three temperatures [J] . E.J. Eliason, M.K. Gale, C.K. Whitney, Canadian Journal of Zoology . 2017,第6期

机译：在三个温度测试的红豆脂鲑鱼（Oncorhynchus Nerka）Parr中耐力游泳性能和心脏尺寸的可侵入性差异
3. Testing for measurement invariance and latent mean differences across methods: interesting incremental information from multitrait-multimethod studies [J] . Christian Geiser, G. Leonard Burns, Mateu Servera Frontiers in Psychology . 2014,第4期

机译：测试方法不变性和潜在均值差异的方法：来自多特征多方法研究的有趣增量信息
4. A testing method for the temperature difference of the helix SWS [C] . Pu Wei, Guodong Wang, Cheng Cheng, IEEE International Vacuum Electronics Conference . 2015

机译：螺旋SWS温差的测试方法
5. Evaluation of the factors that affect the fracture resistance of asphalt mixtures at low temperatures using mechanical testing and acoustic emission methods. [D] . Li, Xinjun. 2006

机译：使用机械测试和声发射方法评估在低温下影响沥青混合料抗断裂性的因素。
6. Testing for measurement invariance and latent mean differences across methods: interesting incremental information from multitrait-multimethod studies [O] . Christian Geiser, G. Leonard Burns, Mateu Servera 2014

机译：测试方法不变性和潜在均值差异：来自多特征多方法研究的有趣增量信息
7. Aim: To investigate the value of ElastPQ measurement for differential diagnosis of benign and malignant focal liver lesions (FLLs) by using histologic results as a reference standard. Material and methods: A total of 154 patients were included. ElastPQ measurement was performed for each lesion in which the shear wave speed (SWS) was measured. The difference in SWS and SWS ratio of FLL to surrounding liver were evaluated, and the cut off value was investigated. Receiver operating characteristic (ROC) curve was plotted to evaluate the diagnostic performance. Histology as a gold standard was obtained by surgery in all patients. Results: A total of 154 lesions including 129 (83.7 ) malignant FLLs and 25 (16.3 ) benign ones were analysed. The SWS of malignant and benign FLLs was significantly different, 2.77±0.68 m/s and 1.57±0.55 m/s (p<0.05). The SWS ratio of each FLL to surrounding liver parenchyma was 2.23±0.49 for malignant and 1.14±0.36 for benign FLLs (p<0.05). The cut off value for differential diagnosis was 2.06 m/s for SWS and 1.67 for SWS ratio. Conclusions: ElastPQ measurement provides reliable quantitative stiffness information of FLLs and may be helpful in the differential diagnosis between malignant and benign FLLs. [O] . Yi Dong, Wen-Ping Wang, Yadan Xu, 2017

机译：目的：通过使用组织学结果作为参考标准，研究ELASTPQ测量对良性和恶性局灶性肝病变（FLLS）的鉴别诊断的价值。材料和方法：共有154名患者。对测量剪切波速度（SWS）的每个病变进行ELASTPQ测量。评估了FL1与周围肝脏的SWS和SWS比的差异，研究了切断值。接收器操作特征（ROC）曲线被绘制以评估诊断性能。组织学作为金标准通过患者的手术获得。结果：共有154例病变，包括129名（83.7％）恶性FLLS和25（16.3％）良性物质。 SWS的恶性和良性FLLS显着差异，2.77±0.68 m / s和1.57±0.55 m / s（p <0.05）。对于良性FLL的恶性为2.23±0.36，每个FL1与周围肝实质的SWS比为2.23±0.36（P <0.05）。差分诊断的切断值为SWS和SWS比率为2.06米/秒。结论：ELASTPQ测量提供了FLLS的可靠定量刚度信息，可能有助于恶性和良性FLL之间的差异诊断。
8. Proposed Sampling and Analytical Methodologies for Addition to Test Methods for Evaluating Solid Waste: Physical/Chemical Methods (SW-846, 2nd Edition) [R] . 1984

机译：建议的用于评估固体废物测试方法的采样和分析方法：物理/化学方法（sW-846，第2版）

A testing method for the temperature difference of the helix SWS

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