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Frontiers of Structural and Civil Engineering 2024年第6期18卷 949-962页

作者： Kailing DENG duanyi WANG Cheng TANG Jianwen SITU Luobin CHEN School of Civil Engineering and Transportation South China University of TechnologyGuangzhou 510640China

Raveling is a common distress of asphalt pavements,defined as the removal of stones from the pavement *** predict and assess raveling quantitatively,a cumulative damage model based on an energy dissipation approach has been developed at the meso *** construct the model,a new test method,the pendulum impact test,was employed to determine the fracture energy of the stone-mastic-stone meso-unit,while digital image analysis and dynamic shear rheometer test were used to acquire the strain rate of specimens and the rheology property of mastic,*** of the model reveals that when the material properties remain constant,the cumulative damage is directly correlated with loading time,loading amplitude,and loading ***,damage increases with superimposed linear and cosine variations over time.A higher stress amplitude results in a more rapidly increasing rate of damage,while a lower load frequency leads to more severe damage within the same loading ***,an example of the application of the model has been presented,showing that the model can be utilized to estimate failure life due to *** model is able to offer a theoretical foundation for the design and maintenance of anti-raveling asphalt pavements.

关键词： asphalt pavement raveling cumulative damage dissipation energy theory

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翁端怡主任运用“和”理念治疗小儿咳嗽经验

福建中医药 2024年第7期55卷 23-24页

作者：叶锦霞翁端怡福建中医药大学附属人民医院福建福州350004

翁端怡主任认为儿童咳嗽最常见病因为风邪、痰邪,根据邪之寒热、感邪深浅、病程发展阶段的不同,以“和”理念为指导思想,用药以寒温并用、宣降相因、散收结合、肺脾同治为特点,小儿感邪后常表现为寒热并见,多取麻桂-石膏、辛夷-败酱草... 详细信息

翁端怡主任认为儿童咳嗽最常见病因为风邪、痰邪,根据邪之寒热、感邪深浅、病程发展阶段的不同,以“和”理念为指导思想,用药以寒温并用、宣降相因、散收结合、肺脾同治为特点,小儿感邪后常表现为寒热并见,多取麻桂-石膏、辛夷-败酱草等药对寒温并用以调节寒热;治咳嗽当宣发肺气,可选用麻黄、杏仁等宣降相因之药,同时佐以香附、郁金、苏梗行气宽胸或佛手、莱菔子等助运通降之品;根据病程不同阶段进行施治,病初痰盛时以川贝母、海浮石等祛散痰邪,病末邪尽时以五味子、乌梅敛肺止咳;此外,治咳时适当佐以陈皮、姜半夏、炒麦芽等以培土生金,肺脾同治,可获良效。

关键词：小儿咳嗽 “和”理念寒温并用宣降相因散收结合肺脾同治

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超薄磨耗层抗滑性能的衰变规律及其影响因素

华南理工大学学报（自然科学版） 2024年第5期52卷 1-9页

作者：王端宜李彦标潘艳珠华南理工大学土木与交通学院广东广州510640 广东交通职业技术学院土木工程学院广东广州510600

为了精确评价沥青超薄磨耗层开放交通后抗滑性能衰变过程、机理及影响因素,首先利用弧形模具及其配套的轮碾机来制备弧形超薄磨耗层试件;然后通过驱动轮式加速加载系统对4种级配类型和3个沥青胶结料等级的沥青超薄磨耗层试件进行加速加... 详细信息

为了精确评价沥青超薄磨耗层开放交通后抗滑性能衰变过程、机理及影响因素,首先利用弧形模具及其配套的轮碾机来制备弧形超薄磨耗层试件;然后通过驱动轮式加速加载系统对4种级配类型和3个沥青胶结料等级的沥青超薄磨耗层试件进行加速加载试验;最后借助激光纹理扫描仪对一定轮载次数作用后的试件分别进行扫描。结合试验数据分别建立了基于S型函数的沥青超薄磨耗层宏观和微观构造深度衰变模型,以及基于灰色关联分析方法来分析各空隙率和沥青胶结料对抗滑性能的独立和耦合作用。试验研究结果显示:采用驱动轮式加速加载系统结合S型函数模型可以定量地评价和预测沥青超薄磨耗层性能的演变过程;空隙率影响超薄磨耗层宏观和微观构造深度的前期衰减速率,空隙率越大,则超薄磨耗层的宏观和微观构造深度的前期衰减速率越大;宏观构造深度的中后期衰减速率受沥青胶结料等级影响更大,沥青胶结料性能等级越高,则宏观构造深度的中后期衰减速率越慢;空隙率和沥青胶结料等级对超薄磨耗层微观构造深度中后期衰减速率的影响相当。因此,在进行超薄磨耗层抗滑性能设计时,选择大空隙率的开级配超薄磨耗层混合料级配对路面抗滑耐久性是有益的,而沥青胶结料的性能等级则可以根据交通量的大小合理选择。

关键词：超薄磨耗层加速加载试验抗滑性能衰变模型 3D激光纹理扫描宏观纹理微观纹理

Spinor Decomposition of SU（2） Gauge Potential and Spinor Structures of Chern-Simons and Chern Density

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Communications in Theoretical Physics 2003年第4X期40卷 447-450页

作者： duanyi-Shi LIUXin FULi-Bin InstituteofTheoreticalPhysics LanzhouUniversityLanzhou730000China LCP InstituteofAppliedPhysicsandComputationalMathematicsP.O.Box8009(28)Beijing100088China

In this paper, the decomposition of SU(2) gauge potential in terms of Pauli spinor is studied. Using this decomposition, the spinor structures of Chern Simons form and the Chern density are obtained. Furthermore, the knot quantum number of non-Abelian gauge theory can be expressed by the Chern-Simons spinor structure, and the second Chern number is characterized by the Hopf indices and the Brouwer degrees of Φ-mapping.

关键词：旋量分解自旋结构泡利自旋非阿贝尔规范理论节量子数规范势

Topological Vortices in Superfluid Films

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Communications in Theoretical Physics 2005年第1X期44卷 160-164页

作者： WANGJun-Ping duanyi-Shi InstituteofTheoreticalPhysics LanzhouUniversityLanzhou730000China InstituteofScienceandTechnologyforOpto-electronicInformation YantaiUniversityYantai264005China

We study the topological structure of the vortex system in a superfiuid film. Explicit expressions for the vortex density and velocity field as functions of the superfluid order parameter are derived. The evolution of... 详细信息

关键词：拓扑旋涡超流体拓扑结构旋涡密度

The specific carbon isotopic compositions of branched and cyclic hydrocarbons from Fushun oil shale

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Chinese Science Bulletin 2004年第4期49卷 369-373页

作者： duanyi WUBaoxiang ZHENGGuodong ZHANGHui ZHENGChaoyang Lanzhou Institute of Geology Chinese Academy of SciencesLanzhou730000China GRC School of EngineeringCardiff University Cardiff CF24 0YFUnited Kingdom

Various branched and cyclic hydrocarbons are isolated from the Fushun oil shale and their carbon isotopes are determined. The analytical results show that the branched and cyclic hydrocarbons are fully separated from n-alkanes by 5 molecular-sieve adduction using long time and cold solvent. The branched and cyclic hydrocarbon frac-tion obtained by this method is able to satisfy the analytic requests of GC-IRMS. The carbon isotopic compositions of these branched and cyclic hydrocarbons obtained from the sample indicate that they are derived from photoautotrophic algae, chemoautotrophic bacteria (-33.4—-39.0) and methanotrophic bacteria (-38.4—-46.3). However the long-chain 2-methyl-branched alkanes indicate that their carbon isotopic compositions reflect biological origin from higher plants. The carbon isotopic composition of C30 4-methyl sterane (-22.1? is the heaviest in all studied ste- ranes, showing that the carbon source or growth condition for its precursor, dinoflagellate, may be different from that of regular steranes. The variation trend of d 13C values between isomers of hopanes shows that 13C-enriched precursors take precedence in process of their epimerization. Methanotro-phic hopanes presented reveal the processes of strong trans-formation of organic matter and cycling of organic carbon in the water column and early diagenesis of oil shale.

关键词：油页岩碳氢化合物抚顺市碳同位素化合物

Contribution of Disclination Lines to Free Energy of Liquid Crystals in Single-Elastic Constant Approximation

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Communications in Theoretical Physics 2004年第2X期42卷 185-188页

作者： YANGGuo-Hong WANGYu-Sheng duanyi-Shi DepartmentofPhysics ShanghaiUniversityShanghai200436China InstituteofTheoreticalPhysics LanzhouUniversityLanzhou730000China

In the light of φ-mapping method and topological current theory, the contribution of disclination lines to free energy density of liquid crystals is studied in the single-elastic constant approximation. It is pointed out that the total free energy density can be divided into two parts. One is the usual distorted energy density of director field around the disclination lines. The other is the free energy density of disclination lines themselves, which is shown to be centralized at the disclination lines and to be topologically quantized in the unit of kπ /2. The topological quantum numbers are determined by the Hopf indices and Brouwer degrees of the director field at the disclination lines, i.e. the disclination strengths. From the Lagrange's method of multipliers, the equilibrium equation and the molecular field of liquid crystals are also obtained. The physical meaning of the Lagrangian multiplier is just the distorted energy density.

关键词：向错线自由能液晶单弹性常数近似拉格朗日多项式

缸筒温度对聚氨酯活塞摩擦磨损影响规律试验研究

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中国矿业 2024年第3期33卷 196-201页

作者：李玉铭刘兆霞王端一魏梦晓山东科技大学能源与矿业工程学院山东青岛266590

活塞是链式喷浆机的重要组成部分,也是链式喷浆机安全、可靠、高效生产的关键,因此,开展活塞磨损性能研究是提高其可靠性及安全性的重要基础,为分析温度对活塞-缸筒摩擦磨损性能的影响,选用聚氨酯材质的活塞和缸筒进行摩擦磨损试验,模... 详细信息

活塞是链式喷浆机的重要组成部分,也是链式喷浆机安全、可靠、高效生产的关键,因此,开展活塞磨损性能研究是提高其可靠性及安全性的重要基础,为分析温度对活塞-缸筒摩擦磨损性能的影响,选用聚氨酯材质的活塞和缸筒进行摩擦磨损试验,模拟喷浆机中活塞-缸筒的实际运行情况,利用压力变送器、电子天平、徕卡显微镜对活塞-缸筒间的密封情况、活塞的磨损量以及表面磨损形貌进行分析检测,从而得到了不同温度对活塞磨损性能的影响情况,并探讨了磨损机制。试验结果表明:活塞-缸筒间的密封性能随磨损温度的增加而下降,但当温度超过40℃时,密封性能相对上升;随着温度的升高,磨损量逐渐增加,活塞表面磨痕宽度与深度逐渐增大,即温度越高,磨损越严重,磨损表面的粗糙度越大,活塞表面形貌磨损越剧烈,活塞表面非正常磨损逐渐增加。该试验研究温度对活塞磨损行为的影响,以期为聚氨酯活塞在温度变化下的摩擦磨损相关研究提供试验参考,该研究对提高链式喷浆机可靠性具有重要意义。

关键词：聚氨酯活塞摩擦磨损温度密封性能磨损量表面形貌

Single-beam two-photon three-dimensional optical storage in a pyrryl-substituted fulgide photochromic material

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Chinese Science Bulletin 2001年第22期46卷 1856-1859页

作者： Ningfang Liao Mali Gong duanyi Xu Guosheng Qi Kai Zhang Tsing Hua Univ Dept Precis Instruments Beijing 100084 Peoples R China

We introduce a high-density three-dimensional optical data storage approach by using a pyrryl-sub-stituted fulgide photochromic material with a method of single-beam two-photon recording and fluorescence confocal readout. The detailed information about the photochromic material and the experimental setup are presented. The experiments about multi-layered recording and readout are carried out with a 100-μm-thick transparent photochromic material film. The results show that the lateral resolution is better than 1 μm, and the longitudinal resolution is about 3 μm. Besides, the readout times for the recorded data aredesirable when using a readout laser power smaller than 5 mW.

关键词： two-photon optical data storage photochromic material confocal microscope.

临床药师参与呼吸科不同疾病诊断分组的控费管理成效分析

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临床合理用药杂志 2024年第23期17卷 11-16页

作者：何杏仪庞雨欧阳燕婷吴端仪广州中医药大学顺德医院广东省佛山市528000

目的探讨临床药师在疾病诊断相关分组(DRGs)付费制度下对呼吸科药品控费管理的作用。方法选取2021—2022年广州中医药大学顺德医院呼吸科住院患者,筛选出住院金额超出本院支付标准患者,排名前五的DRGs,分为DRGs 1组(ET29慢性气道阻塞病)... 详细信息

目的探讨临床药师在疾病诊断相关分组(DRGs)付费制度下对呼吸科药品控费管理的作用。方法选取2021—2022年广州中医药大学顺德医院呼吸科住院患者,筛选出住院金额超出本院支付标准患者,排名前五的DRGs,分为DRGs 1组(ET29慢性气道阻塞病)、DRGs 2组(ES33呼吸系统感染/炎症,伴一般并发症或合并症)、DRGs 3组(EJ13呼吸系统其他手术,伴一般并发症或合并症)、DRGs 4组(ER13呼吸系统肿瘤,伴并发症或合并症)、DRGs 5组(ER15呼吸系统肿瘤,不伴并发症或合并症),各20例。并根据临床药师开展药品控费干预的时间节点,分为干预前(2021年)和干预后(2022年)2个时段。观察比较干预前后各组住院时间、住院总费用、药品总费用及药占比,抗菌药物使用排名前10的总金额和抗菌药物使用频率(DDDs),以及抗菌药物费用占比。结果干预后患者住院天数、住院总费用、药品总费用、药占比均低于干预前,除DRGs 3组住院总费用和DRGs 5组住院总费用与药品总费用比较差异无统计学意义(P>0.05),其余各组干预前后住院时间、住院总费用、药品总费用及药占比比较均有统计学差异(P<0.05或P<0.01);干预后组患者的排名前10的抗菌药物总金额除头孢哌酮舒巴坦,厄他培南,西他沙星,环丙沙星外,其余药物使用总金额均降低,且干预后抗菌药物前10总金额低于干预前;干预后,DDDs排名前10的抗菌药物总DDDs值低于干预前;干预后DRGs 1组、DRGs 2组、DRGs 3组抗菌药物费用占比低于干预前。DRGs 4组和DRGs 5组的抗菌药物费用占比高于干预前。结论DRGs付费模式下临床药师能有效参与呼吸科药品控费管理,在保障临床疗效和安全的前提下控制药品费用,促进DRGs模式的合理运作。

关键词：临床药师疾病诊断相关分组呼吸科药品控费