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2篇 您的检索式：作者名="Longjun Cao"

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		题名	作者	年代	出处	被引量
	1	Site dependence of far-source ground motions during the Wenchuan earthquake显示文摘This paper aimed to examine the site dependence and evaluate the methods for site analysis of farsource ground motions.This was achieved through the examination of frequency content estimated by different methods based on strong ground motions recorded at twelve far-source stations in Shandong province during the Wenchuan earthquake.The stations were located in sites with soil profiles ranging from code classes Ⅰ to Ⅲ.Approaches used included the Fourier amplitude spectrum(FAS),the earthquake response spectrum(ERS),the spectral ratio between the horizontal and the vertical components(H/V),the spectral ratio between the spectra at the site and at a reference site(SRRS),and coda wave analysis(CWA).Results showed that major periods of these ground motions obtained by FAS,ERS and H/V ratio methods were all evidently larger than site dominant periods;the periods were also different from each other and mainly reflected the frequency content of long period components.Prominent periods obtained by the SRRS approach neither illuminated the long period aspect nor efficiently determined site features of the motions.The CWA resulted in a period close to site period for stations with good quality recordings.The results obtained in this study will be useful for the evaluation of farsource effect in constructing seismic design spectra and in selecting methods for ground motion site analysis.	Longjun Xu Haiying Yu Wenhai Cao Lili Xie	2009	Earthquake Science2009，22，5：	1
	2	Effects of silent myocardial ischemia on functional fitness and physical independence in 60–79-year-old adults显示文摘Objective:We examined the effect of silent myocardial ischemia(SMI)on functional fitness levels and physical independence in 60–79-year-old individuals.Methods:We conducted a cross-sectional study with 716 older adults and used an electrocardiograph and an ambulatory electrocardiogram to diagnose those with SMI.Physical independence was assessed using the Composite Physical Function scale,whereas physical fitness was assessed using the Senior Fitness Test battery.Results:The 60-79-year-old females and males with SMI were more likely to have lower scores for lower and upper body strength,agility/dynamic balance,and aerobic endurance(p<0.05)than those without SMI.The scores for lower and upper body flexibility in all age groups for both genders were not significant(p>0.05).Binary logistic regression analysis revealed that old adults with SMI had a higher risk of losing physical independence later in life than those without SMI(p<0.05).Conclusion:This study showed that individuals with SMI have lower fitness levels and increased risk of losing physical independence than those without SMI.	Longjun Cao Linke Li Lei Wang Shen Li Yingwu Chen Shilei Yuan Liping Huang	2019	Sports Medicine and Health Science2019，1，1：	0

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