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| 1 | 钢筋混凝土结构的耐久性和服役寿命预测(英文)显示文摘介绍了钢筋混凝土结构在氯离子渗透、碳化和冻融侵蚀作用下的耐久性和服役寿命预测模型。过去几年有关组织或国际学术委员会提出了大量的混凝土结构耐久性设计模型。为了在混凝土结构耐久性设计过程中,能够安全地使用此类模型,需要通过分析和比较长期暴露在不同气候条件下的混凝土劣化现场数据,对预测模型的可用性进行验证。在本文中,对混凝土抗氯离子渗透、碳化和冻融侵蚀的各种模型进行了简要阐述。通过暴露时间超过20年的露天场数据,以及约使用了30年的公路桥的现场数据,对包括简单ERFC模型、DuraCrete模型和ClinConc模型在内的3种氯离子渗透模型进行了评估。同时,使用暴露11年的露天场所的现场数据和7~13年的现有建筑的有限数据对一种预测混凝土碳化深度的物理化学模型进行了评价。针对冻融侵蚀的模型,讨论了临界饱和度测量和实际的饱和度测量中的一些问题。根据对结果的比较,可以发现在大多数情况下,简单ERFC模型在大多数情况下对氯离子渗透的预测值高于实际值,而DuraCrete模型的预测值偏低。另外,ClinConc模型对短期f1年)和长期(21年)暴露条件下的预测更合理,预测效果更好。与在挪威获得的暴露级别为XC3现场数据比较,发现Papadakis碳化模型可以较好地预测碳化深度;但是,与暴露级别为XC4级的现场数据比较发现,该模型低估了碳化深度。 | Luping TANG Peter UTGENANNT Dimitrios BOUBITSAS | 2015 | 硅酸盐学报2015,43,10: | 10 |
| 2 | Current status of cell-mediated regenerative therapies for human spinal cord injury显示文摘During the past decade, significant advances have been made in refinements for regenerative therapies following human spinal cord injury(SCI).Positive results have been achieved with different types of cells in various clinical studies of SCI.In this review, we summarize recently-completed clinical trials using cellmediated regenerative therapies for human SCI, together with ongoing trials using neural stem cells.Specifically, clinical studies published in Chinese journals are included.These studies show that current transplantation therapies are relatively safe, and have provided varying degrees of neurological recovery.However, many obstacles exist, hindering the introduction of a specifi c clinical therapy, including complications and their causes, selection of the target population, and optimization of transplantation material.Despite these and other challenges, with the collaboration of research groups and strong support from various organizations, cell-mediated regenerative therapies will open new perspectives for SCI treatment. | Tongming Zhu Qisheng Tang Huasong Gao Yiwen Shen Luping Chen Jianhong Zhu | 2014 | Neuroscience Bulletin2014,30,4: | 7 |
| 3 | On-chip photonic Fourier transform with surface plasmon polaritons显示文摘The Fourier transform(FT),a cornerstone of optical processing,enables rapid evaluation of fundamental mathematical operations,such as derivatives and integrals.Conventionally,a converging lens performs an optical FT in free space when light passes through it.The speed of the transformation is limited by the thickness and the focal length of the lens.By using the wave nature of surface plasmon polaritons(SPPs),here we demonstrate that the FT can be implemented in a planar configuration with a minimal propagation distance of around 10 mm,resulting in an increase of speed by four to five orders of magnitude.The photonic FT was tested by synthesizing intricate SPP waves with their Fourier components.The reduced dimensionality in the minuscule device allows the future development of an ultrafast on-chip photonic information processing platform for large-scale optical computing. | Shan Shan Kou Guanghui Yuan Qian Wang Luping Du Eugeniu Balaur Daohua Zhang Dingyuan Tang Brian Abbey Xiao-Cong Yuan Jiao Lin | 2016 | Light(Science & Applications)2016,5,1: | 4 |
| 4 | In Situ Observation of Crystalline Silicon Growth from SiO_(2) at Atomic Scale显示文摘The growth of crystalline Si(c-Si)via direct electron beam writing shows promise for fabricating Si nanomaterials due to its ultrahigh resolution.However,to increase the writing speed is a major obstacle,due to the lack of systematic experimental explorations of the growth process and mechanisms.This paper reports a systematic experimental investigation of the beaminduced formation of c-Si nanoparticles(NPs)from amorphous SiO_(2) under a range of doses and temperatures by in situ transmission electron microscopy at the atomic scale.A three-orders-of-magnitude writing speed-up is identified under 80 keV irradiation at 600℃ compared with 300 keV irradiation at room temperature.Detailed analysis reveals that the self-organization of c-Si NPs is driven by reduction of c-Si effective free energy under electron irradiation.This study provides new insights into the formation mechanisms of c-Si NPs during direct electron beam writing and suggests methods to improve the writing speed. | Kaihao Yu Tao Xu Xing Wu Wen Wang Hui Zhang Qiubo Zhang Luping Tang Litao Sun | 2019 | Research2019,,1: | 3 |
| 5 | Diagnostic value of fluid attenuated inversion recovery versus T_2-weighted image in diffuse axonal injury显示文摘BACKGROUND:At present, the most common examination modality for diffuse axonal injury (DAI) is CT or MRI. However, both methods exhibit low sensitivity in the diagnosis of DAI lesions. OBJECTIVE: To investigate the value of fluid attenuated inversion recovery (FLAIR) in the clinical diagnosis of DAI, and to compare with T2-weighted images. DESIGN, TIME AND SETTING: This prospective study was based on imaging analysis, and was performed in the First Affiliated Hospital of Chongqing Medical University (Chongqing, China) between October 2002 and April 2004. PARTICIPANTS: Sixty-three patients with craniocerebral injury were admitted to the Department of Neurosurgery at the First Affiliated Hospital of Chongqing Medical University, including 50 males and 13 females. The patients were included in the experiment and were divided into DAI (n=24) and non-DAI (n=39) groups, according to the emergent CT findings and clinical manifestations. METHODS: Both groups underwent MR examinations, including axial and sagittal T1 weighted images (TR = 450 ms, TE = 8–9 ms), T2-weighted images (TR = 3 600 ms, TE = 100 ms), and FLAIR (TR = 10 000 ms, TI = 2 500 ms, TE = 40 ms), 8-mm thick and 2-mm wide, using a GE Sigma MRI device. MAIN OUTCOME MEASURES: The DAI diagnostic rate and lesion-detecting rate of T2-weighted images and FLAIR were determined. RESULTS: All 63 patients were included in the final analysis. The DAI diagnosis rates of FLAIR and T2-weighted images were 88% (21/24) and 62% (15/24), respectively, of which the difference was statistically significant (P < 0.05). T2-weighted images and FLAIR detected lesions located in the gray matter-white matter junction in parasagittal areas, the corpus callosum, deep periventricular white matter, basal ganglia, internal capsule, hippocampus, cerebellum, and brain stem, with a detailed amount of 123 and 256, respectively. FLAIR was significantly greater than T2-weighted images (P < 0.01). CONCLUSION: FLAIR is superior to T2-weighted images for improving the DAI diagnostic rate and lesion-detecting rate, as well as revealing the extent and severity of DAI. | Haijian Xia Xiaochuan Sun Wenyuan Tang Tianyou Luo Fajin Lu Weidong Fang Luping Zheng | 2008 | Neural Regeneration Research2008,3,8: | 3 |
| 6 | Performance of Concrete Subjected to Severe Multiple Actions of Composite Salts Solution under Wet-Dry Cycles and Flexural Loading in Lab显示文摘Several action regimes were employed, namely, those exposed to solutions containing single and/or composite chloride and sulfate salts, and under wet-dry cycles and/or flexural loading. The variations in dynamic modulus of elasticity(Erd values) were monitored, as well as the key factor impacting on the chloride ingress when concrete subjected to multiple action regimes was identified by the method of Grey Relation Analysis(GRA). The changes in micro-structures and mineral products of interior concrete after different action regimes were investigated by means of X-ray diffraction(XRD), mercury intrusion technique(MIP), and scanning electron microscopy(SEM). The test results showed that the cyclic wet-dry accelerated the deterioration of OPC concrete more than the action of 35% flexural loading based on the results of Erd values and the GEA. The analyses from micro-structures could give certain explanations to the change in Erd values under different action regimes. | 陈燕娟 高建明 TANG Luping SHEN Daman | 2017 | Journal of Wuhan University of Technology(Materials Science)2017,32,4: | 2 |
| 7 | Rapid Determination of Chloride Diffusivity in Concrete by Applying an Electrical Field显示文摘 | Tang Luping Lars-Olof Nilsson | 1992 | ACI Materials Journal1992,89,1: | 1 |
| 8 | A Study of the Quantitative Relationship Between Strength and Pore Size Distribution of Porous Materials显示文摘 | Tang Luping | | 0,,01: | 1 |
| 9 | Chloride Binding Capacity and Binding Isotherms of OPC Pastes and Mortars显示文摘 | Tang Luping Lars-Olof Nilsson | 1993 | Cement and Concrete Research1993,23,2: | 1 |
| 10 | Application of LA-ICP-MS for meso-scale chloride profilingin concrete显示文摘 | Nelson Silva Tang Luping Sebastien Rauch | | 0,,: | 1 |
| 11 | A study of the quantitative relationship between syrength and pore size distribution of porousmaterials显示文摘 | | 1986 | Cem Concr Res1986,,16: | 1 |
| 12 | A study of the quantitative relationship between strength and pore-size distribution of porous materials显示文摘 | Tang Luping | 1986 | Cement and Concrete Research1986,16,1: | 1 |
| 13 | A study on the quantitative relationship between strength and pore size distribution of porous materials 显示文摘 | Tang Luping | 1986 | Cem Coner Res1986,16,4: | 1 |
| 14 | Chloride binding capacity and binding isotherm of OPC pastes and mortars显示文摘 | TANG Luping NILSSON Lars-Olof | 1993 | Cement and Concrete Research1993,23,5: | 1 |
| 15 | On the Mathematics of Time- dependent Apparent Chloride Diffusion Coefficient in Concrete 显示文摘 | Tang Luping Joost Gulikers | 2007 | Cement and Concrete Research2007,,37: | 1 |
| 16 | A study on the quantitative relationship between strength and pore size distribution of porous materials显示文摘 | TANG Luping | 1986 | Cement and Concrete Research1986,16,4: | 1 |
| 17 | Chloride binding capacity and binding isotherms of OPC pastes and mortars 显示文摘 | Tang Luping Lars-Olof Nilsson | 1993 | Cement and Concrete Research1993,23,2: | 1 |
| 18 | Chloride binding capacity and binding isotherm of OPC pastesand mortars 显示文摘 | Tang Luping Nilsson L O | 1993 | Cement and Concrete Research1993,23,2: | 1 |
| 19 | Rapid determination of the chloride diffusivity in concrete by applying an electric field显示文摘 | Tang Luping Lars-Olof Nilsson | 1992 | ACI Materials Journal1992,89,1: | 1 |
| 20 | Rapid determination of the chloride diffusivity in concrete by applying an electrical field显示文摘 | TANG Luping NILSSON L O | 1992 | ACI Materials Journal1992,89,1: | 1 |