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一阶光学游标效应的全光纤温度传感器

电子测量与仪器学报 2024年第4期38卷 234-240页

作者：杨玉强张钰颖高佳乐边缘牟小光王骥杨文虎王文华广东海洋大学深圳研究院深圳518120 广东海洋大学广东省南海海洋牧场智能装备重点实验室湛江524088 广东海洋大学智慧海洋传感网及其装备工程技术研究中心湛江524088 哈尔滨理工大学测控技术与通信工程学院哈尔滨150080 广东海洋大学机械工程学院湛江524088

本文提出并制备了一种基于法布里-珀罗干涉计(FPI)和迈克尔逊干涉计(MI)并联的全光纤温度传感器,该传感器由单模光纤依次错位熔接一段悬浮芯光纤和一段单模光纤而成,熔接和切割形成的反射面构成了FPI干涉计和MI干涉计,且MI干涉计的光程... 详细信息

本文提出并制备了一种基于法布里-珀罗干涉计(FPI)和迈克尔逊干涉计(MI)并联的全光纤温度传感器,该传感器由单模光纤依次错位熔接一段悬浮芯光纤和一段单模光纤而成,熔接和切割形成的反射面构成了FPI干涉计和MI干涉计,且MI干涉计的光程约为FPI干涉计光程的2倍(略大于2倍),从而,两干涉计产生了一阶谐波游标效应。实验结果表明,该传感器干涉谱中出现了具有明显一阶谐波游标效应特征的双包络,且随着温度的升高,干涉谱双包络逐渐红移,红移量远大于单个MI干涉计;在20℃~120℃的温度范围内,该传感器的温度灵敏度为208 pm/℃,约为单个MI干涉计的20.8倍,约为单个FPI干涉计的245倍;升降温实验以及同一温度多次测量实验均表明,该传感器具有良好的重复性和稳定性。该传感器在同一根光纤内实现了FPI和MI并联,其传感头总长度仅约为584.4μm,且为全光纤尖端结构,因此,特别适合于小空间环境高温检测。

关键词：光纤传感器法布里-珀罗干涉计迈克尔逊干涉计光学游标效应

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沉水植物对南京莫愁湖总氮、总磷的净化研究

环境生态学 2024年第2期6卷 121-124页

作者：边园琦柴夏唐坦傅侃南京中科水治理股份有限公司江苏南京210018

在控制南京莫愁湖内源污染和外源污染的基础上,对莫愁湖实施沉水植物修复。全湖共分8个区栽种沉水植物,修复不同组成的沉水植物群落,监测调查各区栽种前后湖水总氮、总磷浓度,分析沉水植物对莫愁湖氮、磷的净化效果。结果表明,沉水植物... 详细信息

在控制南京莫愁湖内源污染和外源污染的基础上,对莫愁湖实施沉水植物修复。全湖共分8个区栽种沉水植物,修复不同组成的沉水植物群落,监测调查各区栽种前后湖水总氮、总磷浓度,分析沉水植物对莫愁湖氮、磷的净化效果。结果表明,沉水植物可以有效降低莫愁湖水体总氮浓度,平均去除率可达79.9%,不同沉水植物群落对总氮去除率有所差异,其中苦草-黑藻-狐尾藻群落优于苦草-微齿眼子菜群落,优于苦草-黑藻群落,优于苦草-马来眼子菜群落和苦草-狐尾藻群落。沉水植物对莫愁湖水体中总磷平均去除率为48%;其中,苦草-微齿眼子菜群落去除率最高,优于苦草-黑藻-狐尾藻群落,优于苦草-马来眼子菜群落,优于苦草-狐尾藻群落和苦草-黑藻群落;苦草、黑藻、马来眼子菜、微齿眼子菜、狐尾藻等沉水植被混交群落对总氮的去除效果比对总磷的去除效果要好,可为选择构建沉水植物群落有效降解总氮、总磷提供参考。

关键词：沉水植物总氮总磷净化莫愁湖

Radioimmunotherapy of carcinoma of colon with [131I]-labeled recombinant chimeric monoclonal antibodies to carcinoembryonic antigen

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Acta Pharmacologica Sinica 2005年第10期26卷 1259-1264页

作者： Qiu-jun LU~1, Guang-xing bian, yuan-yuan CHEN, Min ZHANG, Shao-ming GUO, Li-qing WEN Institute of Radiation Medicine, Beijing 100850, China InstituteofRadiationMedicine Beijing100850China

Aim: To study the distribution of [131I]-labeled anti-CEA MoAbs and its therapeutic effect on the human colonic cancer model in nude mice. Methods: A nude mice model of human colonic cancer was established. [~131I]-labeled anti-CEA MoAbs were injected intravenously into mice. The distribution of the MoAbs was then determined and the effect of RIT on human colonic cancer was observed. Results: The [131I]-labeled anti-CEA MoAbs had a specific distribution after injection. Tumor/non-tumor ratios for [131I]-labeled anti-CEA MoAbs were 10-20 times higher than [131I]-labeled IgG 96 h after injection. Thirty days after injection, significant inhibition of the volume and weight of tumor was observed in the treated mice compared with the control. The tumor growth inhibition rate of 3,1 mCi/kg CEA MoAbs group (LS180, LS174T, SW1116) was 47.8%～64.0%. This was 69.6%-78.6% in the 6.25 mCi/kg CEA MoAbs group, and 81.8%-86.2% in the 12.5 mCi/kg [131I]-labeled anti-CEA MoAbs group. The plasma CEA level was alo lower in treated mice. Conclusion: The results indicate that [131I]-labeled anti-CEA MoAbs can be effective in RIT on colonic cancers.

关键词： humanized chimeric recombinant monoclonal antibody radioimmunotherapy colonic cancer nude mice

直接抽吸取栓术与支架取栓术治疗急性后循环大血管闭塞性脑卒中的疗效对比

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广西中医药大学学报 2024年第3期27卷 30-33页

作者：陆弘盈谭衍边远李欣明蔡文强贵港市人民医院广西贵港537199

[目的]对比直接抽吸取栓术(ADAPT)与支架取栓术治疗急性后循环大血管闭塞性脑卒中的有效性和安全性。[方法]将72例急性后循环大血管闭塞性脑卒中患者按治疗方案不同分为ADAPT组37例和支架组35例。ADAPT组行直接抽吸取栓术,支架组行支架... 详细信息

[目的]对比直接抽吸取栓术(ADAPT)与支架取栓术治疗急性后循环大血管闭塞性脑卒中的有效性和安全性。[方法]将72例急性后循环大血管闭塞性脑卒中患者按治疗方案不同分为ADAPT组37例和支架组35例。ADAPT组行直接抽吸取栓术,支架组行支架取栓术。对比两组穿刺-血管再通时间、取栓次数、静脉溶栓、一次血管再通率、全部血管再通率、血栓逃逸、美国国立卫生研究院卒中量表(NIHSS)评分、近期预后情况及并发症发生率。[结果]两组静脉溶栓、全部血管再通率及血栓逃逸比较无统计学差异(P>0.05)。ADAPT组穿刺-血管再通时间短于支架组,取栓次数少于支架组,一次血管再通率高于支架组(P0.05),ADAPT组90 d预后良好率高于支架组(P<0.05)。支架组并发症发生率高于ADAPT组(P<0.05)。[结论]相较于支架取栓术,ADAPT治疗急性后循环大血管闭塞性脑卒中可获得更好的近期预后,并发症风险更低。

关键词：急性缺血性脑卒中直接抽吸取栓术后循环大血管闭塞支架取栓术

Passive imaging through dense scattering media

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Photonics Research 2024年第1期12卷 134-140页

作者： YAOMING bian FEI WANG yuanZHE WANG ZHENFENG FU HAISHAN LIU HAIMING yuan GUOHAI SITU Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China

Imaging through non-static and optically thick scattering media such as dense fog,heavy smoke,and turbid water is crucial in various ***,most existing methods rely on either active and coherent light illumination,or image priors,preventing their application in situations where only passive illumination is *** this study we present a universal passive method for imaging through dense scattering media that does not depend on any prior *** the selection of small-angle components out of the incoming information-carrying scattering light and image enhancement algorithm that incorporates timedomain minimum filtering and denoising,we show that the proposed method can dramatically improve the signal-to-interference ratio and contrast of the raw camera image in outfield experiments.

关键词： scattering media illumination

Crystal Structure of Sar1[H79G]-GDP Which Provides Insight into the Coat-controlled GTP Hydrolysis in the Disassembly of COP Ⅱ

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Chinese Journal of Structural Chemistry 2006年第7期25卷 854-860页

作者： RAO Yi-Jian yuan Cai bian Chuan-Bing HOU Xiao-Min LI Yong-Dong ZHAO Geng-Xiang YE Xiao-Ming HUANG Zi-Xiang HUANG Ming-Dong State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China

Sarl is a small GTPase involved in COPⅡ vesicle transport. Previous studies showed that H79G mutation of Sarl can lock Sarl in its GTP-bound active conformation, stabilize coat assembly, and prevent the disassembly of COP Ⅱ vesicle coats by reducing Sec23/24 GAP- stimulated hydrolysis. We show here that the replacement of His79 by glycine induces a large conformation change in switch Ⅱ and results in the lost of hydrogen bond between His79 and its associated nucleophilic water molecule that was hypothesized to reduce the GAP-stimulated hydrolysis during the COP Ⅱ assembly and disassembly. These results confirm that the switch Ⅱ conformation is important for COP Ⅱ disassembly through coat-controlled GTP hydrolysis.

关键词： Sarl switch Ⅱ COP Ⅱ disassembly crystal structure

Trends in point-of-care ultrasound protocols in the emergency department and intensive care unit:a review

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Emergency and Critical Care Medicine 2023年第2期3卷 64-69页

作者： Xinhui Fan yuan bian Guoying Wang Weikang Liu Luyao Gao Yuhui Pan Shengchuan Cao Qiuhuan yuan Shujian Wei Feng Xu Yuguo Chen Department of Emergency and Chest Pain Center Shandong Provincial Clinical Research Center for Emergency and Critical Care MedicineInstitute of Emergency and Critical Care Medicine of Shandong UniversityKey Laboratory of Emergency and Critical Care Medicine of Shandong ProvinceKey Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong ProvinceQilu Hospital of Shandong UniversityJinanChina.

Together with the development of the focused assessment with sonography for trauma protocol for ultrasound in trauma patients,point-of-care ultrasound is widely used in the field of emergency and critical care *** have established several classic operating protocols for different diseases,such as acute respiratory failure,shock,and cardiac arrest,in the emergency department and intensive care *** further development in the portability and popularity of ultrasonic equipment,it is expected to be used as a new type of technology for physical examination,including inspection,palpation,percussion,auscultation,and insonation,which will improve the clinical medicine practice in the future.

关键词： Auscultation and insonation Inspection Palpation Percussion Point-of-care ultrasound Protocol Seven-point and nineplane protocol

International Environmental Management and Sustainability

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中国城市经济 2011年第27期 235-237页

作者： yuan bian Anglia Ruskin UK

Human well-being and the conditions of development depend on the necessary resources of *** the development of society and economy,it has been proposed that the issues of environment in ***,Global warming is one of the most serious problems which human beings are facing ***,Governments and enterprise all over the world have been concerning about the principal reason for Global warming that carbon emission.

关键词： emissions warming electricity Approximation today

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死畜禽立式堆肥反应器设计

农业工程 2024年第6期14卷 88-91页

作者：俞恒李辉吴德胜赵明杰边远景心宇刘祥中国农业机械化科学研究院集团有限公司北京100083 中国农业机械化科学研究院集团有限公司浙江分公司浙江绍兴312039

针对目前我国死畜禽堆肥反应器存在的诸多问题,以缩短堆肥周期、减小占地面积、降低环境危害为目标,对死畜禽立式堆肥反应器展开研究与设计。该反应器主要由破碎搅拌系统、传动系统、控温系统组成。在掌握相关堆肥工艺技术的前提下,对... 详细信息

针对目前我国死畜禽堆肥反应器存在的诸多问题,以缩短堆肥周期、减小占地面积、降低环境危害为目标,对死畜禽立式堆肥反应器展开研究与设计。该反应器主要由破碎搅拌系统、传动系统、控温系统组成。在掌握相关堆肥工艺技术的前提下,对反应器关键参数如容积、保温层厚度、加热器功率,以及对关键零部件如搅刀轴、搅刀片、定刀进行分析设计。利用有限元软件进行仿真分析,结果表明,反应器内部能形成稳定对流的流场,搅刀所受载荷均匀,反应器设计可靠。

关键词：立式堆肥死畜禽堆肥反应器堆肥周期

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