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Ultrasound-assisted tandem synthesis of tri-and tetra-substituted pyrrole-2-carbonitriles from alkenes,TMSCN and N,N-disubstituted formamides

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Chinese Chemical Letters 2020年第12期31卷 3241-3244页

作者： qing-Wen gui fan Teng sheng-Neng Ying Yang Liu Tao guo Jian-Xin Tang jin-Yang Chen Zhong cao Wei-Min he College of Chemistry and Materials Science Hunan Agricultural UniversityChangsha 410128China School of Life Scienices and Chenistry Hunan University of Technologyzhuzhou 412007China Hunan Provincial Key Laboratory of Materials Protection for Flectric Power and Tramnsportation Changsha Univerity of Sciene and TechnologyChangsha 410114China

An energy-saving and eco-friendly method for the efficient construction of various tri-and tetrasubstituted pyrrolecarbonitriles through ultrasound-assisted multicomponent tandem reaction of readily available alkenes,TMSCN and N,N-disubstituted formamides within 40 min under metal-,solvent-free and mild conditions was *** dual role of iodine(catalyst and oxidant)notably simplified the reaction conditions and reduced the chemical waste generated.

关键词： Green chemistry Solvent-free Tandem reaction Dual role Ultrasound

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光子晶体发光二极管

光学技术 2007年第4期33卷 505-509页

作者：苏萍许振丰顾华荣曹良才何庆声金国藩清华大学精密测试技术与仪器国家重点实验室北京100084

利用光子晶体的光子禁带和光栅衍射效应可以提高LED的出光效率,扩大LED的应用范围。总结了光子晶体发光二极管的原理和典型器件。通过比较表明,与光子禁带效应相比,利用光栅衍射效应提高LED出光效率的方法更适用于电注入发光。因此可望... 详细信息

利用光子晶体的光子禁带和光栅衍射效应可以提高LED的出光效率,扩大LED的应用范围。总结了光子晶体发光二极管的原理和典型器件。通过比较表明,与光子禁带效应相比,利用光栅衍射效应提高LED出光效率的方法更适用于电注入发光。因此可望用更廉价的方法在LED表面制造光子晶体,可通过光栅衍射效应来有效地提高其出光效率。

关键词：导波光学(光纤和集成光学) 光子晶体发光二极管光子禁带光栅

Novel esophageal squamous cell carcinoma bone metastatic clone isolated by scintigraphy, X ray and micro PET/CT

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World Journal of Gastroenterology 2014年第4期20卷 1030-1037页

作者： Bi-Zeng Zhao Jie cao jin-Chen Shao Yan-Bing Sun Li-Min fan Chun-Yu Wu sheng liang Bao-Feng guo guang Yang Wen-Hui Xie qing-Cheng Yang Shun-fang Yang Department of Orthopedics Shanghai Sixth Hospital of Shanghai Jiaotong University Department of Nuclear Medicine Shanghai Chest Hospital of Shanghai Jiaotong University Department of Pathology Shanghai Chest Hospital of Shanghai Jiaotong University Department of Radiology Shanghai Chest Hospital of Shanghai Jiaotong University Department of Thoracic Surgery Shanghai Chest Hospital of Shanghai Jiaotong University Department of Breast Surgery Shanghai Long Hua Hospital of Shanghai University of Traditional Chinese Medicine Micro PET/CT Center Department of Nuclear Medicine Shanghai RuiJin Hospital of Shanghai Jiaotong University Kyocera Communication Systems (Shanghai) Co. Ltd

AIM: To establish a Chinese esophageal squamous cell carcinoma (ESCC) cell line with high bone metastasis potency using 99mTc-methylene diphosphonate (99mTc-MDP) micro-pinhole scintigraphy, X ray and micro-positron emission tomography/computed tomography (PET/CT) for exploring the mechanism of occurrence and development in esophageal cancer.

关键词： Esophageal squamous cell carcinoma Cell line Bone metastasis Molecular imaging Real-time polymerase chain reaction

Drone-based entanglement distribution towards mobile quantum networks

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National Science Review 2020年第5期7卷 921-928页

作者： hua-Ying Liu Xiao-Hui Tian Changsheng gu Pengfei fan Xin Ni Ran Yang Ji-Ning Zhang Mingzhe Hu Jian guo Xun cao Xiaopeng Hu Gang Zhao Yan-qing Lu Yan-Xiao Gong Zhenda Xie Shi-Ning Zhu National Laboratory of Solid State Microstructures School of Electronic Science and Engineering School of Physics College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced MicrostructuresNanjing University

Satellites have shown free-space quantum-communication ability; however, they are orbit-limited from full-time all-location coverage. Meanwhile, practical quantum networks require satellite constellations,which are complicated and expensive, whereas the airborne mobile quantum communication may be a practical alternative to offering full-time all-location multi-weather coverage in a cost-effective way. here,we demonstrate the first mobile entanglement distribution based on drones, realizing multi-weather operation including daytime and rainy nights, with a Clauser-Horne-Shimony-Holt S-parameter measured to be 2.41±0.14 and 2.49±0.06, respectively. Such a system shows unparalleled mobility, flexibility and reconfigurability compared to the existing satellite and fiber-based quantum communication, and reveals its potential to establish a multinode quantum network, with a scalable design using symmetrical lens diameter and single-mode-fiber coupling. All key technologies have been developed to pack quantum nodes into lightweight mobile platforms for local-area coverage, and arouse further technical improvements to establish wide-area quantum networks with high-altitude mobile communication.

关键词： daytime quantum communication mobile quantum network drone entanglement distribution

Profile of biological characterizations and clinical application of corneal stem/progenitor cells

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World Journal of Stem Cells 2022年第11期14卷 777-797页

作者： Pei-Xi Ying Min Fu Chang huang Zhi-Hong Li qing-Yi Mao sheng Fu Xu-Hui Jia Yu-Chen cao Li-Bing Hong Li-Yang cai Xi guo Ru-Bing Liu fan-ke Meng guo-guo Yi Department of Ophthalmology Zhujiang HospitalThe Second Clinical SchoolSouthern Medical UniversityGuangzhou 510280Guangdong ProvinceChina Department of Ophthalmology Zhujiang HospitalSouthern Medical UniversityGuangzhou 510280Guangdong ProvinceChina Eye Institute and Department of Ophthalmology Eye&ENT HospitalFudan UniversityShanghai 200030China NHC Key Laboratory of Myopia Fudan UniversityShanghai 200030China Key Laboratory of Myopia Chinese Academy of Medical SciencesShanghai Key Laboratory of Visual Impairment and RestorationShanghai 200030China Department of Cardiology State Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Lab of Shock and MicrocirculationNanfang HospitalSouthern Medical UniversityGuangzhou 510550Guangdong ProvinceChina The Second Clinical School Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina hengyang Medical School The University of South ChinaHengyang 421001Hunan ProvinceChina Medical College of Rehabilitation Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Emergency Department Zhujiang HospitalSouthern Medical UniversityGuangzhou 510280Guangdong ProvinceChina Department of Ophthalmology The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655Guangdong ProvinceChina

Corneal stem/progenitor cells are typical adult stem/progenitor *** human cornea covers the front of the eyeball,which protects the eye from the outside environment while allowing *** location and function demand the cornea to maintain its transparency and to continuously renew its epithelial surface by replacing injured or aged cells through a rapid turnover process in which corneal stem/progenitor cells play an important *** stem/progenitor cells include mainly corneal epithelial stem cells,corneal endothelial cell progenitors and corneal stromal stem *** the discovery of corneal epithelial stem cells(also known as limbal stem cells)in 1971,an increasing number of markers for corneal stem/progenitor cells have been proposed,but there is no consensus regarding the definitive markers for ***,the identification,isolation and cultivation of these cells remain challenging without a unified *** this review,we systematically introduce the profile of biological characterizations,such as anatomy,characteristics,isolation,cultivation and molecular markers,and clinical applications of the three categories of corneal stem/progenitor cells.

关键词： Corneal epithelial stem cells Corneal endothelium stem cells Corneal stromal stem cells Bioengineering Gene markers

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用于接触式探测的多模光纤探针形状优化

光学技术 2008年第3期34卷 458-461页

作者：陆超顾向光曹良才何庆声金国藩清华大学精密测试技术及仪器国家重点实验室北京100084 加州大学圣克鲁兹分校电子工程系加州95064

对于进行接触式探测的多模光纤探针,信号光来自于附着于探针表面的待测物。基于几何光学,提出了一个物理模型,用以分析探头形状对所收集的信号光强度的影响。采用此模型,对抛物线型探头进行了仿真,给出了最优形状参数,并采用表面增强拉... 详细信息

对于进行接触式探测的多模光纤探针,信号光来自于附着于探针表面的待测物。基于几何光学,提出了一个物理模型,用以分析探头形状对所收集的信号光强度的影响。采用此模型,对抛物线型探头进行了仿真,给出了最优形状参数,并采用表面增强拉曼探针进行了初步实验验证。此分析可用于指导各种光纤传感器的设计,以确定其最佳的形状参数,适用于荧光传感器、表面等离子体共振传感器、表面增强拉曼传感器等。

关键词：光纤传感器几何光学光学设计传感器

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大容量体全息相关器存储时序的改进

光学技术 2008年第1期34卷 52-54页

作者：瞿宗耀何树荣曹良才何庆声金国藩清华大学精密测试技术及仪器国家重点实验室北京100084

体全息相关器的存储时序直接影响多通道输出的衍射效率均匀性,进而影响识别率。通过引入约束因子β,对传统的递减曝光时序进行改进,提出约束递减曝光时序,并用此时序在2400幅的存储容量下,实现了衍射效率较均匀的并行相关输出。

关键词：体全息存储体全息相关器衍射效率曝光时序约束递减曝光

Clinical trial with traditional Chinese medicine intervention ''tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'' for chronic hepatitis B-associated liver failure

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World Journal of Gastroenterology 2014年第48期20卷 18458-18465页

作者： Han-Min Li Zhi-hua Ye Jun Zhang Xiang Gao Yan-Ming Chen Xin Yao Jian-Xun gu Lei Zhan Yang Ji Jian-liang Xu Ying-he Zeng fan Yang Lin Xiao guo-guang sheng Wei Xin Qi Long qing-jing Zhu Zhao-Hong Shi Lian-guo Ruan Jia-Yao Yang Chang-Chun Li Hong-Bin Wu sheng-Duo Chen Xin-La Luo hepatopathy Institute Affiliated Hospital of Hubei University of Chinese Medicine Hubei University of Chinese Medicine jingzhou Hospital of Traditional Chinese Medicine Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency School of Pharmaceutical Science and Technology Tianjin University

AIM:To study the clinical efficacy of traditional Chinese medicine(TCM)intervention"tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment"("TTK")for treating liver failure due to chronic hepatitis ***:We designed the study as a randomized controlled clinical *** number of Chinese Clinical Trial Registry is Chi CTR-TRC-12002961.A total of 144 patients with liver failure due to infection with chronic hepatitis B virus were enrolled in this randomized controlled clinical *** were randomly assigned to the following three groups:(1)a modern medicine control group(MMC group,36patients);(2)a"tonifying qi and detoxification"("TQD")group(72 patients);and(3)a"tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment"("TTK")group(36patients).Patients in the MMC group received general internal medicine treatment;patients in the"TQD"group were given a TCM formula"tonifying qi and detoxification"and general internal medicine treatment;patients in the"TTK"group were given a TCM formula of"TTK"and general internal medicine *** participants were treated for 8 wk and then followed at 48 wk following their final *** primaryefficacy end point was the patient fatality rate in each *** of various virological and biochemical indicators served as secondary *** one-way analysis of variance and the t-test were used to compare patient outcomes in the different treatment ***:At the 48-wk post-treatment time point,the patient fatality rates in the MMC,"TQD",and"TTK"groups were 51.61%,35.38%,and 16.67%,respectively,and the differences between groups were statistically significant(Phere were no significant differences in the levels of hepatitis B virus DNA or prothrombin activity among the three groups(P>0.05).Patients in the"TTK"group had significantly higher levels of serum to

关键词： Clinical study 'Tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'('TTK') Liver regeneration Treatment with integrated traditional and Western medicine Chronic hepatitis B-associated liver failure

提高夜视融合目标可探测性的颜色对比度增强方法

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红外与毫米波学报 2009年第4期28卷 281-284页

作者：殷松峰曹良才杨华谭峭峰何庆声凌永顺金国藩清华大学精密仪器与机械学系精密测试与仪器国家重点实验室北京100084 电子工程学院安徽省红外与低温等离子体重点实验室安徽合肥230037

根据人眼视觉系统特性,分析了场景理解和目标探测对彩色融合的要求,并据此提出了一种通过颜色对比度增强来提高目标可探测性的夜视融合方法.该方法使热目标呈红色,冷目标呈蓝绿色;根据红外图像特征,引入了一种和红外图像各像素亮度与图... 详细信息

根据人眼视觉系统特性,分析了场景理解和目标探测对彩色融合的要求,并据此提出了一种通过颜色对比度增强来提高目标可探测性的夜视融合方法.该方法使热目标呈红色,冷目标呈蓝绿色;根据红外图像特征,引入了一种和红外图像各像素亮度与图像平均亮度的偏离相关的颜色对比度增强因子,利用该因子可增强目标与背景的颜色对比度,弥补颜色传递彩色融合方法在颜色对比度上的不足,能有效提高目标可探测性.实验表明该方法既能突出红外目标,又能保持丰富的背景细节,在增强场景理解的同时提高了目标可探测性.

关键词：图像融合夜视对比度增强颜色对比度目标探测