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Single-Layer Symmetrical Full-Port Quasi-Absorptive Filtering Phase Shifter

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China Communications 2023年第12期20卷 30-40页

作者： Qingxiang Dong Yongle Wu weijuan chen Yuhao Yang Weimin Wang School of Integrated Circuits Beijing University of Posts and TelecommunicationsBeijing 100876China School of Electronic Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

In this article,a single-layer symmetrical full-port quasi-absorptive filtering phase shifter is *** proposed phase shifter is composed of a main quasi-absorptive filtering branch,a reference quasi-absorptive filtering branch,and two delay *** proposed phase shifter achieves both phase controlling function and quasi-absorptive filtering function for the first *** quasi-absorptive filtering branch can realize the quasi-absorptive filtering ***,the constant phase shift can be obtained by combining the two quasi-absorptive filtering branches and the two delay *** design formulas can be derived from the even-and odd-mode network analysis,and then two quasi-absorptive filtering phase shifters can be devised easily and *** verification,a 90°quasi-absorptive filtering phase shifter,which is critical for circularly polarized antenna systems,is simulated,manufactured,and measured.

关键词： filtering phase shifter(PS) quasiabsorptive reflectionless symmetrical

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A high-precision system of fiber Bragg grating temperature sensing demodulation based on light power detection

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Optoelectronics Letters 2022年第8期18卷 461-467页

作者： HUANG Shuyan HU Xiaohua ZHANG Hao chen weijuan HUANG Youping FAN Mengyi Department of Electronic Information Science Fujian Jiangxia UniversityFuzhou 350108China University of Chinese Academy of Sciences Beijing 100059China Fujian Provincial Key Laboratory for Advanced Micro-nano Photonics Technology and Devices Quanzhou Normal UniversityQuanzhou 362000China

A system of fiber Bragg grating(FBG)temperature sensing demodulation based on light power detection is proposed in this *** with the traditional demodulation method based on wavelength scanning,light power detection is more direct and avoids the use of ***,the light power in the system is converted into the electrical signal by the receiver optical subassembly(ROSA)and converted to the digital *** micro controller unit(MCU)processes the digital signal to realize the real-time temperature monitoring,which avoids the use of optical power meter(OPM).With the advantages of simple structure and low cost,the system is portable and *** experimental results show that the linearity coefficients R-square between light power and the sampling voltage are 0.99908 and 0.99893 in the temperature range from 10°C to 85°C,*** to the results,the proved sensor has a repeatability error of 1%,a linearity error of 1.35%,and a hysteresis error of 0.7%,which indicates that the system is of high stability and high *** experimental results are consistent with the theory,which verifies the system’s feasibility.

关键词： system power fiber

极端高温天气条件下不同鲜食玉米品种的种植表现

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现代农业科技 2024年第3期 20-25页

作者：苏彩霞栾春荣张旭陈维娟赵本真洪斌刘明义泰兴市农业科学研究所江苏泰兴225433 泰兴市根思乡农业农村局江苏泰兴225433

为科学选择适宜鲜食玉米/鲜食大豆带状复合种植的耐密、抗病、抗倒的鲜食玉米品种,为玉米大豆带状复合种植技术示范推广提供品种支撑,开展了11个鲜食玉米品种与鲜食大豆的带状复合种植试验。结果表明:在2022年夏季极端高温且持续时间较... 详细信息

为科学选择适宜鲜食玉米/鲜食大豆带状复合种植的耐密、抗病、抗倒的鲜食玉米品种,为玉米大豆带状复合种植技术示范推广提供品种支撑,开展了11个鲜食玉米品种与鲜食大豆的带状复合种植试验。结果表明:在2022年夏季极端高温且持续时间较长的气候条件下,鲜食玉米/鲜食大豆带状复合种植模式下不同鲜食玉米品种在双穗率、空秆率等植株性状及千粒鲜重、出籽率、结实率等产量性状上差异明显,其中晶白甜糯、虞珑糯1612、苏玉糯5号、苏科糯1801、苏科糯1901这5个品种结实率较高,表现出较强的耐高温能力;苏甜糯818、斯达糯41、扬甜糯104结实率较低,表现出较低的耐高温能力。复种区各玉米品种鲜穗产量在7332~11440 kg/hm^(2)之间,除苏科糯1801、晶白甜糯较对照苏玉糯5号(CK)略增产外,其他各品种均较对照苏玉糯5号(CK)减产,减产幅度在1.53%~34.58%之间,以苏甜糯818、苏科糯1501减产最严重。清种区各玉米品种鲜穗产量在7638.89~14828.70 kg/hm^(2)之间,除苏科糯1801较对照苏玉糯5号(CK)略增产1.42%外,其他各品种均较对照苏玉糯5号(CK)减产,减产幅度在0.95%~47.75%之间,以苏科糯1501减产最严重。

关键词：极端高温天气鲜食玉米/鲜食大豆带状复合种植模式玉米品种性状产量

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咸鱼深加工工艺探讨

中国水产 2002年第4期 74-75页

作者：陈维娟

咸鱼又名盐渍鱼,总体分为咸干制品和水咸酶香制品两大类.咸鱼营养丰富,咸中带香,是具有独特风味的传统食品.但一直以来受加工工艺简陋的制约,其品质较差,附加值不大,因此,大力开发咸鱼精深加工品,以市场为导向,根据不同鱼类的特征采用... 详细信息

咸鱼又名盐渍鱼,总体分为咸干制品和水咸酶香制品两大类.咸鱼营养丰富,咸中带香,是具有独特风味的传统食品.但一直以来受加工工艺简陋的制约,其品质较差,附加值不大,因此,大力开发咸鱼精深加工品,以市场为导向,根据不同鱼类的特征采用不同的加工工艺,推出方便、卫生的净咸鱼、精品咸鱼和调味咸鱼,提高咸鱼产品的品位和档次,是今后咸鱼加工发展的方向.

关键词：咸鱼深加工工艺

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The Research on Distinguishing Benign from Malignant Breast Lesions by Diffusion Weighted MR Imaging

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The Research on Distinguishing Benign from Malignant Breast ...

2009中华医学会影像技术分会第十七次全国学术大会

作者： LUO Yindeng ZHAO Jiannong GUO Dajing chen Linli chen weijuan WU Wei SHEN Xia WU Cuixia 重庆医科大学附属第二医院

Objective:To investigate the value of ADC of diffusion weighted MRI in distinguishing malignant from benign breast lesions.

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中国能源消费与出口贸易关系实证研究

世界经济研究 2009年第8期 26-30页

作者：张传国陈蔚娟厦门大学经济学院

本文运用格兰杰因果关系检验以及脉冲响应和方差分解方法,分别对中国能源消费与出口贸易之间的因果、动态以及定量关系进行了深入研究。研究发现:中国能源消费与出口贸易之间存在从出口贸易到能源消费的单向因果关系,出口贸易波动将对... 详细信息

本文运用格兰杰因果关系检验以及脉冲响应和方差分解方法,分别对中国能源消费与出口贸易之间的因果、动态以及定量关系进行了深入研究。研究发现:中国能源消费与出口贸易之间存在从出口贸易到能源消费的单向因果关系,出口贸易波动将对能源消费产生持续较大的影响,出口贸易对能源消费具有较强的依赖性。

关键词：能源消费出口贸易格兰杰因果检验脉冲响应方差分解

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Sanhua Tang(三化汤) protects against ischemic stroke by preventing blood-brain barrier injury: a network pharmacology and in vivo experiments

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Journal of Traditional Chinese Medicine 2024年第4期44卷 794-803页

作者： LUO Shan YANG Fan chen Yuanchun ZHAO Ruoxi LIU Haiye GAO Fei MA Wencan GAO weijuan YU Wentao College of Basic Medicine Hebei University of Chinese Medicine Graduate School Hebei University of Chinese Medicine College of Acupuncture and Massage Hebei University of Chinese Medicine Hebei Key Laboratory of Chinese Medicine Research on Cardio-Cerebrovascular Diseases Hebei International Joint Research Centre for Acupuncture and Moxibustion of Traditional Chinese Medicine

OBJECTIVE: To assess the effect and mechanism of Sanhua Tang(三化汤, SHT) in treating ischemic stroke(IS) through the "Kaitong Xuanfu" theory by using network pharmacology and animal experiments. METHODS: The active ingredients and targets of SHT and IS were screened by public databases such as Traditional Chinese Medicine systems pharmacology, GeneCards, and online mendelian inheritance in man. Visual network topographies were constructed using R, Cytoscape 3.6.0, AutoDockTools, a user-sponsored molecular visualization system on an open-source foundation, and other software to analyze the correlation between targets and active ingredients. The middle cerebral artery occlusion(MCAO) model was established by operation. Animals were divided into the Sham group, MCAO group(M group), aloe-emodin(AE) group(MCAO rats treated with aloe-emodin), SHT at low dosage(SL group)(MCAO rats treated with SL), SHT at medium dosage(SM group), and SHT at high dosage(SH group). 2,3,5-triphenyl tetrazolium chloride staining was used to detect the volume of cerebral infarction; Nissl staining was used to observe the morphology of neuronal cells; transmission electron microscopy was used to observe the integrity of the blood-brain barrier(BBB); enzymelinked immunosorbent assay was used to detect the content of interleukin-6(IL-6), IL-10, tumor necrosis factor α(TNF-α) in serum. Western blot was used to detect the expression of vascular endothelial growth factor A(VEGFA) protein in the cerebral ischemic penumbra. RESULTS: Using network pharmacology and molecular docking validation, four active ingredients(lignan, naringenin, aloe-rhodopsin, and β-sitosterol), seven target proteins(protein kinase b 1, IL-6, TNF, VEGFA, TP53, jun proto-oncogene, and cysteinyl aspartate specific proteinase 3), and inflammatory signaling pathways were identified. Animal experiments showed that the SH and AE groups had fewer neurological deficits, reduced brain infarct volumes, decreased serum inflammatory factor l

关键词： Sanhua Tang blood-brain barrier inflammatory reactions ischemic stroke network pharmacology