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化学复合激发对新疆和田地区火山岩的活性影响

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兰州大学学报（自然科学版） 2024年第1期60卷 115-119页

作者：夏兆轩王怀义杨桂权程宁宁石洪刚新疆农业大学水利与土木工程学院新疆水利水电科学研究院水利水电材料工程技术研究中心

针对天然火山岩粉早期活性低的缺点,利用不同化学试剂进行单掺优选、正交复合的试验方案,配合X射线衍射及扫描电子显微镜的微观分析,揭示化学复合激发对火山岩粉胶凝体系活性的影响规律和提升机理.结果表明,化学试剂单掺和复合掺加均能... 详细信息

针对天然火山岩粉早期活性低的缺点,利用不同化学试剂进行单掺优选、正交复合的试验方案,配合X射线衍射及扫描电子显微镜的微观分析,揭示化学复合激发对火山岩粉胶凝体系活性的影响规律和提升机理.结果表明,化学试剂单掺和复合掺加均能提升火山岩粉胶凝体系的活性,且7 d龄期活性指数表现最佳,试剂单掺最大可提升活性指数至73%,正交试验确定由6%CaO+2%CaCO_(3)+2%CaSO_(4)·2H_(2)O的试剂复合可使7 d龄期活性指数提升至85%,微观水化产物测试发现化学复合激发促使胶凝体系早期Ca(OH)_(2)向高硫型水化硫铝酸钙(AFt)转换的速率加快,使早期胶凝体系内部C-S-H凝胶及AFt晶体生成量增大,水化反应加速,水化产物填充作用明显,提升火山岩粉胶凝体系的早期强度.

关键词：火山岩胶砂试件化学激发正交实验

Period studies and photometric models for two EB-type binaries EU Hya and AW Vul

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Research in Astronomy and Astrophysics 2016年第2期16卷 127-134页

作者： Yuan-gui yang Qun Li Hua-Li Li Hai-Feng Dai School of Physics and Electronic Information/Information College Huaibei Normal UniversityHuaibei 235000China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650011China National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China

New photometry for two Algol-type binaries, 0.8065 d）, was carried out using the 60-cm telescope EU Hya （P = 0.7782 d） and AW Vul （P = at Xinglong station of National Astronomical Observatories, Chinese Academy of Sciences. With the updated Wilson-Devinney code, photometric el- ements were derived from the multi-color light curves. The modeled results indicate that the two systems are near-contact binaries, whose secondary components fill their Roche lobes. The fill-out factors of the primaries are fp = 81.2 （±0.2）% for EU Hya and fp --- 82.4 （±0.3）% for AW Vul. Period analysis implies that there exists a downward parabola with a light-time orbit from the （O - C） curve. This kind of periodic oscillation may be attributed to the light-time orbit effect of a third companion. The long-term period de- crease may be caused by mass and angular momentum loss. When the orbital period decreases, the fill-out factor of fp will increase. Our results indicate that the primaries will also eventually fill their Roche lobes. EU Hya and AW Vul may possibly evolve from semi-detached binaries into contact ones.

关键词： eclipsing binaries -- stars individual (EU Hya and AW Vul) -- the third companion

Photoacoustic detection of follicular thyroid carcinoma using targeted Nano-Au-Tripods

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Chinese Journal of Chemical Engineering 2022年第4期35卷 1-7页

作者： yang gui Kai Cheng Ruojiao Wang Sirui Liu Chenyang Zhao Rui Zhang Ming Wang Zhen Cheng Meng yang Department of Ultrasound State Key Laboratory of Complex Severe and Rare DiseasesPecking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Molecular Imaging Program at Stanford(MIPS) Department of Radiology and Bio-X ProgramSchool of MedicineStanford UniversityStanford CA 94305-5484USA

Follicular thyroid carcinoma(FTC)is the second most common form of thyroid malignancy,and it is associated with more aggressive growth and worse long-term survival outcomes relative to papillary thyroid carcinoma(PTC).Reliable approaches to preoperative FTC detection,however,remain to be ***,a targeted Affibody-Au-Tripod nanoprobe was developed and successfully utilized to facilitate the targeted photoacoustic imaging(PAI)of epidermal growth factor receptor(EGFR)-positive cells and *** Affibody-Au-Tripods were found to be highly sensitive and specific for cells expressing EGFR when used as a PA contrast agent in vitro,and studies conducted in an FTC-133 subcutaneous tumor model system in mice further revealed that these Affibody-Au-Tripods were able to specifically target these EGFR-expressing tumors while providing a strong photoacoustic signal in ***,these nanoprobes exhibited negligible cytotoxicity and robust chemical and physical stability,making Affibody-Au-Tripods promising candidates for targeted PAI-based FTC *** addition,these nanoprobes have the potential to facilitate the individualized treatment of patients harboring EGFRpositive tumors.

关键词： Affibody Follicular thyroid carcinoma Nano-Au-Tripods Nanoprobe Photoacoustic imaging

A high-dexterity low-degree-of-freedom hybrid manipulator structure for robotic lion dance

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第4期11卷 240-249页

作者： Liang YAN I-Ming CHEN Song-huat YEO Yan CHEN gui-lin yang School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China School of Mechanical and Aerospace Engineering Nanyang Technological University Nanyang 639798 Singapore Mechatronics Gnmp Singapore Institute of Mastrfacturing Technology Nanyang 638075 Singapore

Lion dance is a very popular and lively Chinese traditional art form.A robotic project in Singapore has been dedicated to the design and demonstration for similar traditional art forms using modern mechatronics *** paper deals with a novel six-degree-of-freedom (6-DOF) hybrid manipulator with high stiffness,high loading capability and high dexterity,mimicking the lion dancer's upper body motions along with the lion head *** design of the hybrid manipulator consists of a 2-DOF torso structure in serial configuration and a 4-DOF dual arm structure in parallel *** combined 6-DOF hybrid manipulator can support the weight and dynamics of the lion head during the lion dance *** kinematics of the manipulator has been formulated and visualized for design *** kinematics of the hybrid manipulator were analytically derived for real-time motion *** on the design and modeling,a complete hybrid manipulator has been fabricated,implemented into the robotic lion,and successfully demonstrated for real robotic lion dance performance.

关键词： Parallel mechanism Hybrid manipulator Kinematics analysis

Novel Synthesis of 2-Amino-3-ethoxycarbonyl Benzopyrans with Onium Salt as Soluble Support

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Chemical Research in Chinese Universities 2011年第3期27卷 435-440页

作者： ZHANG Li LU Cui-fen yang gui-chun CHEN Zu-xing Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules. Faculty of Chemistry and Chemical Engineering Hubei University Wuhan 430062 P. R. China

Task specific onium salt has been presented as soluble support in the synthesis of benzopyrans in this paper. This method allows for results by far superior to those reported other soluble supports and allows for very... 详细信息

关键词： Onium salt Support Benzopyran

Is low postoperative cholesterol level really an independent risk factor of adverse outcomes after living donor liver transplantation?

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Hepatobiliary & Pancreatic Diseases International 2018年第4期17卷 378-379页

作者： Qing Liu Fu-Shan Xue gui-Zhen yang Ya-yang Liu Department of Anesthesiology Plastic Surgery HospitalChinese Academy of Medical Sciences and Peking Union Medical College Department of Anesthesiology Beijing Friendship HospitalCapital Medical University

To the Editor:We read with great interest the article by yang et al.[1]evaluating the effects of postoperative serum total cholesterol(s TC)changes on early allograft dysfunction and survival after living donor liver transplantation(LDLT).By the multivariate regression analysis,they showed that patients with s TC<1.42 mmol/L on postoperative day 3 had 4.08-fold and 2.72-fold greater risks of

关键词： Is low postoperative cholesterol level really an independent risk factor of adverse outcomes after living donor liver transplantation TC AUC

Brain functional network connectivity based on a visual task: visual information processing-related brain regions are significantly activated in the task state

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Neural Regeneration Research 2015年第2期10卷 298-307页

作者： Yan-li yang Hong-xia Deng gui-yang Xing Xiao-luan Xia Hai-fang Li School of Computer Science and Technology Taiyuan University of Technology

It is not clear whether the method used in functional brain-network related research can be applied to explore the feature binding mechanism of visual perception. In this study, we inves-tigated feature binding of color and shape in visual perception. Functional magnetic resonance imaging data were collected from 38 healthy volunteers at rest and while performing a visual perception task to construct brain networks active during resting and task states. Results showed that brain regions involved in visual information processing were obviously activated during the task. The components were partitioned using a greedy algorithm, indicating the visual network existed during the resting state.Z-values in the vision-related brain regions were calculated, conifrming the dynamic balance of the brain network. Connectivity between brain regions was determined, and the result showed that occipital and lingual gyri were stable brain regions in the visual system network, the parietal lobe played a very important role in the binding process of color features and shape features, and the fusiform and inferior temporal gyri were crucial for processing color and shape information. Experimental ifndings indicate that understanding visual feature binding and cognitive processes will help establish computational models of vision, improve image recognition technology, and provide a new theoretical mechanism for feature binding in visual perception.

关键词： nerve regeneration functional magnetic resonance imaging resting state task state brain network module division feature binding Fisher’s Z transform connectivity visual stimuli NSFC grants neural regeneration

859例胰腺占位性病变超声造影诊断的准确性分析

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协和医学杂志 2024年第4期15卷 825-830页

作者：桂阳吕珂梁华陈雪琪贾琬莹陈天娇姜玉新中国医学科学院北京协和医院超声医学科北京100730

目的分析胰腺占位性病变超声造影诊断报告的准确性。方法回顾性收集2017年1月—2022年12月北京协和医院行胰腺占位超声造影检查且最终病理诊断明确的患者病历资料。以病理诊断为金标准,分析胰腺病变超声造影诊断的准确性,并具体分析各... 详细信息

目的分析胰腺占位性病变超声造影诊断报告的准确性。方法回顾性收集2017年1月—2022年12月北京协和医院行胰腺占位超声造影检查且最终病理诊断明确的患者病历资料。以病理诊断为金标准,分析胰腺病变超声造影诊断的准确性,并具体分析各种病理类型胰腺占位性病变的超声造影误诊情况。结果共859例符合纳入和排除标准的患者入选本研究,其中男性489例(56.9%),女性370例(43.1%);年龄16~85岁,中位年龄60(53,66)岁。除难以应用良恶性进行分类的胰腺占位47例外,余812例纳入良恶性诊断准确性分析,结果显示,超声造影对胰腺恶性病变的诊断灵敏度为98.3%(95%CI:97.1%~99.1%),特异度为79.0%(95%CI:70.1%~86.4%),AUC为0.887(95%CI:0.863~0.908),阳性预测值为96.9%(95%CI:95.6%~97.9%),阴性预测值为87.4%(95%CI:79.6%~92.4%),阳性似然比为4.69(95%CI:3.24~6.80),阴性似然比为0.02(95%CI:0.01~0.04),超声造影检查诊断胰腺病变良恶性的诊断报告符合率为95.8%。859例胰腺占位病例中,超声造影误诊48例,误诊率为5.6%(48/859),其中包含未定性诊断病例7例(0.8%),而胰腺导管腺癌的诊断准确率高达98.8%。所有患者超声造影过程中均未发生不良反应事件。结论超声造影检查安全、有效,是评估各种胰腺病变微血管灌注的准确成像方法,对胰腺病变良恶性诊断,特别是胰腺导管腺癌的定性诊断具有良好的临床应用价值。

关键词：超声造影胰腺导管腺癌胰腺神经内分泌肿瘤胰腺肿瘤自身免疫性胰腺炎

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四川大学校园颜值建设策略与路径探索

城市建筑空间 2024年第3期31卷 107-109页

作者：杨珪陈钊宇李恒张鲜元四川大学发展规划处

校园颜值是校园功能性设施及校园环境软硬件构成的内在美和外在美的统称。四川大学校园颜值建设基础较好,但存在教学科研空间零散、教学科研与居住功能混杂、整体空间品质不高、部分区域适宜性和可达性较差、建筑风格和文化传承断裂、... 详细信息

校园颜值是校园功能性设施及校园环境软硬件构成的内在美和外在美的统称。四川大学校园颜值建设基础较好,但存在教学科研空间零散、教学科研与居住功能混杂、整体空间品质不高、部分区域适宜性和可达性较差、建筑风格和文化传承断裂、景观设计连续性和统一性不足、无法满足师生需求等问题。结合校园规划,在学校校园建设中探索校园颜值建设的重点策略和顶层路径,为其他校园建设提供参考。

关键词：校园颜值环境建设规划策略