|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 基于动力触探的砾性土液化判别方法通用性研究显示文摘动力触探是针对砾性土力学性能评价的一种原位测试技术,具有设备简单、操作方便等优势。分别在成都平原和美国Utah地区选取典型砾性土场地,进行中美联合动力触探和有效锤击能量的测试与标定,结果表明:1在成都平原3个砾性土场地获取了中国超重型动力触探1321个重锤锤击能量记录,锤击能量传递系数的平均值约为90%,标准差为7.7%,锤击数离散性受设备操作方法的影响较大;2在美国钻机上安装中国超重型动力触探标准探头,可以有效穿透选取的试验深度为20 m的砾性土场地,并进行分层、力学性能评价;3在美国Echo dam下游坝基上2个砾性土场地获取了美国动力触探1438个重锤锤击记录,锤击能量传递系数约为74%,标准差为8.7%,锤击数离散性受拉绳、钻杆摩擦力的影响较大;4对锤击数进行能量修正之后,以2008年汶川地震砾性土液化为背景、以动力触探锤击数为基本指标的砾性土液化判别方法,具有国际通用的可行性。 | 曹振中 刘荟达 袁晓铭 T Leslie Youd | 2016 | 岩土工程学报2016，38，1： | 9 |
| 2 | Evaluation Indicators and Extraction Method for Pitting Corrosion of Structural Steel显示文摘A set of evaluation indicators based on corrosion ratio in theory for assessing the extent of pitting corrosion and performance reduction are proposed. In order to quantify the morphology of pitting corrosion and extract the evaluation indicators,the 3D profile data obtained by pitting morphology measurement are imported into a special written program to automatically determine the location of each corrosion pit and distill any desired data pertinent to the pitting morphology. The results show that this method seems to be effective to analyze the corroded surface and characterize the pitting morphology. | Shanhua Xu Youde Wang Qifeng Xue | 2015 | Journal of Harbin Institute of Technology(New Series)2015，22，3： | 7 |
| 3 | 砾性土液化评价方法的通用性和可靠性研究显示文摘以2008年汶川地震液化震害调查资料为背景,基于操作性和经济性上具有显著优势的中国动力触探试验(DPT)而提出的砾性土液化评价方法,包括砾性土层液化触发条件以及判别公式(CYY公式),理论上已经得到国内外同行的认可,但其通用性和可靠性尚需检验。以5个国家29个历史地震砾性土场地中美联合勘测为基础,研究DPT技术、砾性土层液化触发条件和CYY公式在不同国家、不同地震和不同场地的适用性和可靠性问题,其中,成都平原14个砾性土场地的勘测与数据处理由中方完成,美国、意大利、新西兰、厄瓜多尔等15个砾性土场地的勘测与数据处理由美方Rollins教授主导完成,均为新的测试检验点。结果表明:中国动力触探标准探头在不同国家、不同砾性土场地上测试具有可行性,可以有效穿透20 m的砾性土场地,动探击数可作为砾性土液化评价的核心指标,同时亦可扩展到砾性土层的力学性能评价;不同国家、不同砾性土液化场地上,均存在不排水或排水不畅的埋藏条件,符合砾性土层液化触发条件要求;对动力触探击数进行锤击能量、有效上覆压力等修正后,CYY公式在不同国家、不同地震、不同砾性土液化场地的判别成功率约96%,具有较高可靠性。以2008年汶川地震砾性土液化为背景、以动力触探锤击数为基本指标的砾性土液化评价方法,具有国际通用的可行性。 | 曹振中 Kyle M.Rollins 袁晓铭 T.Leslie Youd Michael Talbot Jashod Roy Sara Amoroso | 2019 | 岩土工程学报2019，41，9： | 5 |
| 4 | Retrospect and prospect of Geographical Sciences in China: A comparison with the Strategic Directions for Geography in the USA显示文摘理解变化行星:为地理科学(UCP ) 的战略方向,出版了由国家研究委员会(美国) ,和它在职业地理学者的评价建议那大写和复数地理科学(GS ) 是为在为我们的很快变化的行星的更好的理解的下一十年的地理的战略方向。根据这些评价, UCP 过分地珍视技术和工具(任务) ,并且没对方法论(纪律) 给予许多注意。实际上,任务和纪律是地理翅膀,特别在大科学的时间。从 UCP 和它的注释的启发是应该在任务和学科之间被平衡的战略方向, GS 应该是一个纪律系统,方法论,和技术和工具的三维的构造,并且这个系统应该是基于科学精神的科学人性并且由人性指导。在最后 60 年期间,中国地理学者把自己奉献给 GS,包括实践和理论。显然,进步和眼界作为学科交差的 GS,地球表面科学(S 字) 和地理建设(GC ) 被建议。GS 的纪律系统是很复杂的,并且由象科学,技术,工程,和哲学的如此的人的知识领域构成。主要使命是研究户外,建筑群,和宏地球系统(不仅科学地,而且人性地) ,并且一重要方法论是质、量的工具(CIQQM ) 的全面集成。同时,在中国地理的另一个变化方向是人经济的地理(HEG ) 。 | SUN Jun PAN Yujun TANG Maolin WU Youde | 2013 | Journal of Geographical Sciences2013，23，6： | 4 |
| 5 | Application of focused laser differential interferometer to hypersonic boundary-layer instability study显示文摘Accurate prediction of hypersonic boundary-layer transition plays an important role in thermal protection system design of hypersonic vehicles.Restricted by the capability of spatial diagnostics for hypersonic boundary-layer study,quite a lot of problems of hypersonic boundary-layer transition,such as nonlinearity and receptivity,remain outstanding.This work reports the application of focused laser differential interferometer to instability wave development across hypersonic boundary-layer on a flared cone model.To begin with,the focused laser differential interferometer is designed and set up in a Mach number 6 hypersonic quiet wind tunnel with the focal point in the laminar boundary-layer of a 5 degree half-angle flared cone model.Afterwards,instability experiments are carried out by traversing the focal point throughout the hypersonic boundary-layer and the density fluctuation along the boundary-layer profile is measured and analyzed.The results show that three types of instability waves ranging from 10 k Hz to over 1 MHz are co-existing in the hypersonic boundary-layer,indicating the powerful capability of focused laser differential interferometer in dynamic response resolution for instability wave study in hypersonic flow regime;furthermore,quantitative analyses including spectra and bicoherence analysis of instability waves throughout the hypersonic boundary-layer for both cold and heated cone models are performed. | Tao YU Youde XIONG Jiaquan ZHAO Jie WU | 2021 | Chinese Journal of Aeronautics2021，34，5： | 4 |
| 6 | 德阳松柏村典型液化震害剖析显示文摘2008年5月12日中国发生的8.0级汶川大地震中,位于Ⅶ、Ⅷ度交接处的德阳松柏村液化破坏十分明显,喷砂类型丰富,液化伴随大量地裂缝,液化加震现象十分显著,具有典型研究价值。对该村进行了详细的现场测试并与以往液化震害进行了对比分析,结果表明:尽管松柏村地表主要喷出物是中砂和粗砂,但实际液化土与喷出物差别显著,主要为砂砾土液化;以往还没有提出过适于工程应用的砂砾土液化判别方法,而超重型动力触探(DPT)具有设备简单、经济实用、测试数据连续的优点,可作为砂砾土液化预测的核心指标;松柏村大量地裂缝现象不是由次断层造成而是由土层液化引起,而液化产生地裂缝的基本条件为地表较平坦(<3%)以及液化土层水平分布不均匀;液化减震的基本条件为上覆非液化层足够厚且较为密实,但定量评价方法还有待进一步研究。 | 曹振中 李雨润 徐学燕 T.Leslie Youd 袁晓铭 | 2012 | 岩土工程学报2012，34，3： | 4 |
| 7 | Dynamics of liquefaction during the 1987 Superstition Hills, California, Earthquake显示文摘 | Holzer T L Youd T L Hanks T C | 1989 | Science1989，244，： | 2 |
| 8 | Use of fluorogenic histocompatibility leukocyte antigen-A^# 0201/HPV 16 E7 peptide complexes to isolate rare human cytotxic T-lymhocyte-recognizing endogenous human papillomavirus antigens显示文摘 | Youde S J Dunbar P R Evans E M | 2000 | Gancer Res2000，60，2： | 1 |
| 9 | Carbide phases in nickel based superalloy nucleation properties of MC type Carbide显示文摘 | Youdelis W V Kwon O | 1983 | Metal Science1983，17，8： | 1 |
| 10 | Liquefaction- induced lateral spreading at Izmit Bay during the Kocaeli (Izmit)-Turkey Earthquake显示文摘 | CET1N K O YOUD T L SEED R B | 2004 | Journal of Geoteehnieal and Geoenvironmental Engineering2004，130，12： | 1 |
| 11 | Densification and shear of sand during vibra- tion显示文摘 | YOUD T L | 1970 | Journal of the Soil Mechanics and Foundation Di- vision1970，96，3： | 1 |
| 12 | Liquefaction resistance of soils:summary report from the 1996 NCEER and 1998NCEER/NSF workshops on evaluation of liquefactionresistance of soils显示文摘 | Youd T L Idriss I M | 1996 | Journal of Geotechnical andGeoenvironmental Enginees1996，，： | 1 |
| 13 | Activation of CD40 in cervical carcinoma cells facilitates CTL responses and augments chemotherapy-induced apoptosis显示文摘 | Hill S C Youde S J Man S | 2005 | J Immunol2005，174，1： | 1 |
| 14 | Liquefaction- induced lateral spreading in near-fault regions during the 1999 Chi-Chi, Taiwan earthquake显示文摘 | CHU D B STEWAE J P YOUD T L | 2006 | Journal of Geoteehnieal and Geoenvironmental Engineering2006，132，12： | 1 |
| 15 | Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of Soils显示文摘 | YOUD T L IDRISS I M ANDRUS R D | 2001 | Journal of Geotechnical and Geoenvironmental Engineering2001，127，10： | 1 |
| 16 | Liquefaction resistance of soils:summary report from the 1996 NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils显示文摘 | YOUD T L IDRISS I M | 2001 | Journal of Geotechnical and Geoenvironmental Engineering2001，127，4： | 1 |
| 17 | Densification and shear of sand during vibration显示文摘 | YOUD T L | 1970 | Proc ASCE1970，96，3： | 1 |
| 18 | Liquefaction resistance of soils: summary report from the 1996 NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils显示文摘 | YOUD T L | 2001 | Journal of Geotechnical and Geoenvironmental Engineering2001，127，10： | 1 |
| 19 | Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of soils 显示文摘 | Youd T L Idriss I M | 2001 | Geotechnical and Geoenvironmental Engineering2001，，4： | 1 |
| 20 | Effects of Frost-damage on Mechanical Performance of Concrete显示文摘The aim of this study is to provide the quantificational change laws of strength,stiffness,and deformation capacity of frost-damaged concrete relating to a united index,the data were obtained by different researchers.Then the index of relative compressive strength(RCS) was introduced as the indicator of frost damage and a large number of mechanical performance testing data of frost-damaged concrete were collected and analyzed.By curve fitting,the correlations between RCS and the initial elastic modulus,the strain at peak compressive stress,and biaxial compressive strength,and tensile strength,and the strain at peak tensile stress were established.Thereafter,the analytical stress-strain response of frost-damaged concrete under monotonic loading was presented using RCS and compared with that of the experimental data.Moreover,an isotropic elastoplastic damage model of frost-damaged concrete subjected to repeated loading was established.Finally,we can systematically estimate the effects of frost-damage on the mechanical performance of concrete,which can be provided for the numerical simulation of frost-damaged concrete structures. | 李安邦 徐善华 WANG Youde | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员