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| 1 | Transmission properties of defect modes in one-dimensional photonic crystals containing gradi- ent refractive index defects 显示文摘 | Xu Bobo Zheng Gaige Wu Yigen | 2015 | Light and Electron Optics2015，126，24： | 1 |
| 2 | A new concept of endoscopic lung cancer resection: Single-direction thoracoscopic lobectomy显示文摘 | Lunxu Liu Guowei Che Qiang Pu Lin Ma Yigen Wu Qiwei Kan Xuepeng Zhuge Lu Shi | 2009 | Surgical Oncology2009，，2： | 1 |
| 3 | New Upper Limit ofγ-Rays Emitted by Tritium Nucleus显示文摘Using a strong tritium source and a low background HPGe spectrometer a new upper limit of γ-rays emitted by tritium nucleus,less than 3.4X10^(-13),is obtained. | TANG Xiaowei WU Yigen ZHANG Su CHEN Qingwang XIE Xiangqian | 1992 | Chinese Physics Letters1992，9，10： | 0 |
| 4 | Using the rPatlak plot and dynamic FDG-PET to generate parametric images of relative local cerebral metabolic rate of glucose显示文摘Local cerebral metabolic rate of glucose(LCMRGlc) is an important index for the description of neural function.Dynamic 18 F-fluoro-2-deoxy-D-glucose(FDG) positron emission tomography(PET) has been used for quantitative imaging of LCMRGlc in humans,but is seldom used routinely because of the difficulty in obtaining the input function noninvasively.A reference tissue-based Patlak plot model(rPatlak) was proposed to generate parametric images of LCMRGlc in a quantitative dynamic FDG-PET study without requiring blood sampling.Dynamic emission scans(4×0.5,4×2 and 10×5 min) were acquired simultaneously with an IV bolus injection of 155 MBq of FDG.Arterial blood samples were collected during the scans via a catheter placed in the radial artery.Simulation data were also generated using the same scan sequence.The last ten scan data sets were used in a graphical analysis using the Patlak plot.The ratio of LCMRGlc estimated from the original Patlak(oPatlak,using plasma input) was used as the gold standard,and the standardized uptake value ratio(SUVR) was also calculated for comparison.Eight different tissues including white matter,gray matter,and whole brain were chosen as reference tissues for evaluation.Regardless of the reference region used,the slopes in the linear regression between oPatlak and rPatlak were closer to unity than the regression slopes between oPatlak and SUVR.The intercepts for the former were also closer to 0 than those for the latter case.The squared correlation coefficients were close to 1.0 for both cases.This showed that the results of rPatlak were in good agreement with those of oPatlak,however,SUVR exhibited more deviation.The simulation study also showed that the relative variance and bias for rPatlak were less than those for SUVR.The images obtained with rPatlak were very similar to those obtained with oPatlak,while there were differences in the relative spatial distribution between the images of SUVR and oPatlak.This study validates that the rPatlak method is better than the SUVR method and is a good approximation to the oPatlak method.The new method is suitable for generating LCMRGlc parametric images noninvasively. | WU YiGen ZHOU Yun BAO ShangLian HUANG SungCheng ZHAO XiaoHu LI Jun | 2012 | Chinese Science Bulletin2012，57，28： | 0 |
| 5 | Characteristics of fMRI BOLD signal and its neurophysiological mechanism显示文摘The functional magnetic resonance imaging (fMRI) based on blood oxygen level dependent (BOLD) contrast has emerged as one of the most potent noninvasive tools for mapping brain function and has been widely used to explore physiological, pathological changes and mental activity in the brain. Exploring the nature and property of BOLD signal has recently attracted more attentions. Despite that great progress has been made in investigation of the characteristics and neurophysiological basis, the exact nature of BOLD signal remains unclear. In this paper we discuss the characteristics of BOLD signals, the nonlinear BOLD response to external stimuli and the relation between BOLD signals and neural electrophysiological recordings. Furthermore, we develop our new opinions regarding nonlinear BOLD response and make some perspectives on future study. | Zhao Xiaohu Wu Yigen Guo Shengli | 2007 | Progress in Natural Science:Materials International2007，17，6： | 0 |
| 6 | Comparative morphometric and chemical analyses of phenotypes of two invasive ambrosia beetles (Euwallacea spp.) in the United States显示文摘杂食的射击洞 borer (PSHB ) , Euwallacea sp,首先在洛杉机县在 2003 被检测,美国加利福尼亚。最近,这侵略的种成为了许多硬木树的一个主要害虫在城市并且在整个南部的加利福尼亚的 wildland 森林。PSHB 在形态学和生活历史是将近相同的到茶射击洞 borer (TSHB ) , Euwallacea fornicatus,在佛罗里达的硬木的一个侵略害虫,美国和许多世界的另外的部分。然而,分子的研究建议了 taxa 是不同种类。我们进行了 morphometric 和 Euwallacea sp 的显型的化学分析。在南部的加利福尼亚(洛杉机县) 和 E 镇定。在佛罗里达(Miami-Dade 县) 镇定的 fornicatus。我们的分析显示 PSHB 有 3 幼虫的中间形态。第三幼虫的中间形态被头囊宽度用错误分类的 0 概率从开始的 2 中间形态分开。PSHB 成年男性的身体长度,头宽度,和 pronotal 宽度是显著地不到那些女性。女 PSHB 的头宽度和 pronotal 宽度是显著地不到那些女 TSHB。相反,到女 PSHB 的 pronotal 宽度的身体长度的身体长度,和比率比女 TSHB 的那些显著地大。然而,这的女性因为重叠范围, 2 种类不能被这 4 大小完全分开。在两个检测的表皮的烃种类是只链烷(即, n 链烷, monomethylalkanes, dimethylalkanes,和 trimethylalkanes ) 。PSHB 男性和女性的表皮的烃侧面是类似的,但是他们两个都不同于 TSHB 女性的。PSHB 的表皮的烃内部主要被分叉有 31 和 33 碳的脊梁的 dimethylalkanes,而 TSHB 女性的表皮的烃被内部分叉的 monomethylalkanes 和 dimethylalkanes 与 28 和 29 碳的脊梁统治。在这些班以内的多重混合物看起来分别地为 PSHB 和 TSHB 诊断。 | Yigen Chen Paul L. Dallara Lori J. Nelson Tom W. Coleman Stacy M. Hishinuma Daniel Carrillo Steven J. Seybold | 2017 | Insect Science2017，24，4： | 0 |
| 7 | Abundance of volatile organic compounds in white ash phloem and emerald ash borer larval frass does not attract Tetrastichus planipennisi in a Y-tube olfactometer显示文摘许多生来的敌人采用植物 -- 或为主人 / 猎物地点的导出草食动物的信号。幼虫的 parasitoid Tetrastichus planipennisi 杨(Hymenoptera:Eulophidae ) 3 个 biocontrol 代理人中的 1 个当前正在被释放以控制翠玉灰 borer (EAB ) , Agrilus planipennis Fairmaire (Coloeptera:Burprestidae ) 在北美洲。提高它的效率, allelochemicals 吸引它要评定的需要。在这研究,灰韧皮部黑色,绿、白的灰,和 EAB 幼虫的蛀屑的不稳定的有机化合物(VOC ) 被比较。T 的 Foraging 行为。响应从在白灰韧皮部上喂的 EAB 幼虫的白灰或蛀屑的 VOC 的 planipennisi 女性用 Y 试管 olfactometer 被测试。结果显示 3 灰种类有类似的 VOC 侧面。EAB 幼虫的蛀屑通常比韧皮部包含了 VOC 的更大的层次。因素分析显示 11 VOC 能广泛地被划分成 2 个组,与 α-bisabolol , β-caryophyllene ,(E)-2-hexenal,(Z)-3-hexenal,柠檬油精,甲基安息香酸盐,甲基 indole-3-acetic 酸,甲基 jasmonate ,第一组织的甲基水杨酸盐和剩余的(即,甲基 linoleate 和甲基 linolenate )作为一秒。不过,在白灰韧皮部织物和蛀屑的许多 VOC 没吸引 T。planipennisi 女性。幼虫可能为可检测、可靠的 virbrational 信号向选择解释的 EAB 喂隐藏,而不是从韧皮部和蛀屑的无法发现、相对不可靠的 VOC 暗示,在短期由 T 的 foraging。planipennisi。或者,它是可能的那 T。planipennisi 不对采用的 Y 试管 olfactometer 试金顺从。 | Yigen Chen Michael D. Ulyshen Therese M. Poland | 2016 | Insect Science2016，23，5： | 0 |
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