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acoustic emission 1

capillary electrophoresis 1

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infections among diarrheal outpatients in Shanghai: a retrospective case study

Yanyan Jiang, Zhongying Yuan, Guoqing Zang, Dan Li, Ying Wang, Yi Zhang, Hua Liu, Jianping Cao, Yujuan Shen

Frontiers of Medicine 2018, Volume 12, Issue 1,   Pages 98-103 doi: 10.1007/s11684-018-0614-3

Abstract: During 2013, a total of 291 stool specimens were collected from patients with diarrhea at a hospital C. cayetanensis was not detected in any of the stool specimens by traditional microscopy, whereas five stool specimens (1.72%, 5/291) were positive by PCR.

Keywords： Cyclospora cayetanensis     outpatients with diarrhea     stool specimens     18S rRNA gene    

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Simultaneous detection and characterization of toxigenic：Clostridium difficile directly from clinical stoolspecimens

Hanjiang Lai, Chen Huang, Jian Cai, Julian Ye, Jun She, Yi Zheng, Liqian Wang, Yelin Wei, Weijia Fang, Xianjun Wang, Yi-Wei Tang, Yun Luo, Dazhi Jin

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 196-205 doi: 10.1007/s11684-017-0560-5

Abstract: simultaneous detection and characterization of toxigenic C. difficile directly from fecal specimensClinical validation was performed on 354 consecutively collected stool specimens from patients with suspectedThe toxigenic C. difficile species were detected in 36 isolates and 45 stool specimensalternative diagnosis tool for the simultaneous detection of toxigenic C. difficile in stool

Keywords： Clostridium difficile     multiplex PCR     capillary electrophoresis     detection     characterization    

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Analysis of stress and failure in rock specimens with closed and open flaws on the surface

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1222-1237 doi: 10.1007/s11709-021-0773-1

Abstract: The influence of closed and open surface flaws on the stress distribution and failure in rock specimensHeterogeneous finite element models are developed to simulate the compression tests on flawed rock specimensThe simulated specimens include those with closed flaws and those with open flaws on the surface.

Keywords： surface flaw     heterogeneity     circular hole     numerical modeling     relative displacement    

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Positive stool culture could predict the clinical outcomes of haploidentical hematopoietic stem cell

Lijuan Hu, Qi Wang, Xiaohui Zhang, Lanping Xu, Yu Wang, Chenhua Yan, Huan Chen, Yuhong Chen, Kaiyan Liu, Hui Wang, Xiaojun Huang, Xiaodong Mo

Frontiers of Medicine 2019, Volume 13, Issue 4,   Pages 492-503 doi: 10.1007/s11684-019-0681-0

Abstract: Enterobacteriaceae in stool specimens was associated with a higher risk of bloodstream infection, andin stool specimens was related to a higher risk of platelet engraftment failure.specimens.In multivariate analysis, in stool specimens significantly increased the risk of mortality and wasspecimens.

Keywords： haploidentical     hematopoietic stem cell transplantation     stool culture     Candida    

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on the influence of contact surface constraint on mechanical properties of rock-concrete composite specimens

Baoyun ZHAO, Yang LIU, Dongyan LIU, Wei HUANG, Xiaoping WANG, Guibao YU, Shu LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 322-330 doi: 10.1007/s11709-019-0594-7

Abstract: To study the influence of contact surface on the mechanical properties of rock-concrete composite specimensunder compressive loads, the two different contact forms of rock-concrete composite specimens are designed, the mechanical properties of these two different specimens are analyzed under triaxial compressivecondition, and analysis comparison on the stress-strain curves and failure forms of the two specimensconstraint can increase the axial peak stress of composite specimens by 24% and the axial peak strain

Keywords： rock-concrete     composite specimen     contact surface     mechanical properties     failure mechanism    

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Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1372-1389 doi: 10.1007/s11709-021-0772-2

Abstract: Acoustic emission and digital image correlation were used to study the spatiotemporal evolution characteristics of crack extension of soft and hard composite laminated rock masses (SHCLRM) containing double fissures under uniaxial compression. The effects of different rock combination methods and prefabricated fissures with different orientations on mechanical properties and crack coalescence patterns were analyzed. The characteristics of the acoustic emission source location distribution, and frequency changes of the crack evolution process were also investigated. The test results show that the damage mode of SHCLRM is related to the combination mode of rock layers and the orientation of fractures. Hard layers predominantly produce tensile cracks; soft layers produce shear cracks. The first crack always sprouts at the tip or middle of prefabricated fractures in hard layers. The acoustic emission signal of SHCLRM with double fractures has clear stage characteristics, and the state of crack development can be inferred from this signal to provide early warning for rock fracture instability. This study can provide a reference for the assessment of the fracture development status between adjacent roadways in SHCLRM in underground mines, as well as in roadway layout and support.

Keywords： soft−hard composite layered rock mass     double cracks     crack evolution     acoustic emission     digital image correlation    

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Initiation and propagation laws of the glass cracks in specimens subjected to normal loading under the

WAN Zhen-ping, LIU Ya-jun, TANG Yong, YE Bang-yan

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 194-198 doi: 10.1007/s11465-005-0011-x

Abstract: tool design and cutting parameter selection, the initiation and propagation laws of glass cracks in specimensThe relationship between medial crack length and normal loading was also investigated when specimens

Keywords： different     30o-120o     relationship     initiation     cutting parameter    

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Numerical evaluation of group-pile foundation subjected to cyclic horizontal load

Youngji JIN, Xiaohua BAO, Yoshimitsu KONDO, Feng ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 196-207 doi: 10.1007/s11709-010-0021-6

Abstract: are determined based on conventional triaxial drained compression tests on undisturbed and remolded specimens

Keywords： three-dimensional finite element method (3D-FEM)     soil-water coupling analysis     undisturbed and remolded specimens    

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The Double-K Fracture Parameter of Concrete for Non-Standard Three Point Bending Beam Specimens

Wu Zhimin,Xu Shilang,Ding Yining,Lu Xijing,Liu Jiayi,Ding Sheng gen

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 76-81

Abstract:

Using the non-standard three-point bending beam specimens of concrete, which have the span/ height

Keywords： concrete     three-point bending beam     fracture parameter    

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Title Author Date Type Operation

infections among diarrheal outpatients in Shanghai: a retrospective case study

Yanyan Jiang, Zhongying Yuan, Guoqing Zang, Dan Li, Ying Wang, Yi Zhang, Hua Liu, Jianping Cao, Yujuan Shen

Journal Article

Simultaneous detection and characterization of toxigenic：Clostridium difficile directly from clinical stoolspecimens

Hanjiang Lai, Chen Huang, Jian Cai, Julian Ye, Jun She, Yi Zheng, Liqian Wang, Yelin Wei, Weijia Fang, Xianjun Wang, Yi-Wei Tang, Yun Luo, Dazhi Jin

Journal Article

Analysis of stress and failure in rock specimens with closed and open flaws on the surface

Journal Article

Positive stool culture could predict the clinical outcomes of haploidentical hematopoietic stem cell

Lijuan Hu, Qi Wang, Xiaohui Zhang, Lanping Xu, Yu Wang, Chenhua Yan, Huan Chen, Yuhong Chen, Kaiyan Liu, Hui Wang, Xiaojun Huang, Xiaodong Mo

Journal Article

on the influence of contact surface constraint on mechanical properties of rock-concrete composite specimens

Baoyun ZHAO, Yang LIU, Dongyan LIU, Wei HUANG, Xiaoping WANG, Guibao YU, Shu LIU

Journal Article

Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Journal Article

Initiation and propagation laws of the glass cracks in specimens subjected to normal loading under the

WAN Zhen-ping, LIU Ya-jun, TANG Yong, YE Bang-yan

Journal Article

Numerical evaluation of group-pile foundation subjected to cyclic horizontal load

Youngji JIN, Xiaohua BAO, Yoshimitsu KONDO, Feng ZHANG,

Journal Article

The Double-K Fracture Parameter of Concrete for Non-Standard Three Point Bending Beam Specimens

Wu Zhimin,Xu Shilang,Ding Yining,Lu Xijing,Liu Jiayi,Ding Sheng gen

Journal Article