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Weakening behavior of waterproof performance in joints of shield tunnels under adjacent constructions

Frontiers of Structural and Civil Engineering   Pages 884-900 doi: 10.1007/s11709-022-0912-3

Abstract: First, the relationship between the joint opening and transverse deformation under three typical adjacentSubsequently, the evolution of the waterproof performance of a common gasket with a joint opening wasexamined by establishing a coupled Eulerian–Lagrangian model of joint seepage, and a formula describingthe relationship between waterproof performance and joint opening was proposed.

Keywords： shield tunnel     waterproof performance     horizontal transverse deformation     joint opening     weakening behavior    

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Liquid metal printing opening the way for energy conservation in semiconductor manufacturing industry

Frontiers in Energy 2022, Volume 16, Issue 4,   Pages 542-547 doi: 10.1007/s11708-022-0834-8

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Impacts of opening baffle of city road tunnels on natural ventilation performance

Weixiao YANG, Jincheng XING, Jianxing LI, Jihong LING, Haixian HAO, Zhiqiang YAN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 55-61 doi: 10.1007/s11709-013-0194-x

Abstract: Based on the opening baffle mode for natural ventilation of city road tunnels, this paper studies theimpacts of opening baffle on natural ventilation performance by verifying numerical simulation throughBy analyzing the impacts of installation angle, dimension, location, and quantity of opening baffle on

Keywords： city road tunnel     numerical simulation     baffle     top opening     natural ventilation    

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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: This study focuses on the mechanical characteristics and mechanism of a bolted circumferential jointanalytical algorithms for four stress stages are established to describe the bearing behaviors of the jointstudy is performed to verify the rationality of the simplified theoretical analysis for the segment jointinvestigation is conducted to discuss the factors affecting the ultimate compressive bending capacity of the jointThe method for optimizing the joint flexural stiffness is clarified.

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1095-1104 doi: 10.1007/s11709-019-0538-2

Abstract: Side joint is the weak region of PCS concrete frame and has great influence on seismic behavior of theThus systematically study on the seismic behavior of PCS concrete side joint is necessary.This paper presents a finite element study on behavior of the side joint under seismic loading.

Keywords： PCS concrete side joint     numerical simulation     fiber-beam element joint model     solid element joint model    

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Lateral-torsional buckling capacity assessment of web opening steel girders by artificial neural networks

Yasser SHARIFI,Sajjad TOHIDI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 167-177 doi: 10.1007/s11709-014-0236-z

Abstract: This study deals with the stability of damaged steel I-beams with web opening subjected to bending loadsABAQUS for the elastic flexural torsional analysis of I-beams has been used to assess the effect of web openinglateral-torsional buckling moment capacity of deteriorated steel I-beams with different sizes of rectangular web openingpredict residual lateral buckling capacities of doubly-symmetric steel I-beams with rectangular web openingHence, the results of this study can be used for better prediction of buckling life of web opening of

Keywords： steel I-beams     lateral-torsional buckling     finite element (FE) method     artificial neural network (ANN) approach    

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Improvement of part-load performance of gas turbine by adjusting compressor inlet air temperature and IGV opening

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1000-1016 doi: 10.1007/s11708-021-0746-z

Abstract: heating technology, which uses the waste heat of low-grade heat source and the inlet guide vane (IGV) openingMoreover, the regulation rules of the compressor inlet air temperature and the IGV opening are studiedThe results show that there is an optimal matching relationship between IGV opening and inlet air temperatureFurther, when the IGV is in a full opening state and an optimal inlet air temperature is achieved by

Keywords： inlet air temperature     inlet guide vane (IGV) opening     part-load     equilibrium running line     gas turbine    

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Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 15-33 doi: 10.1007/s11465-014-0283-0

Abstract:

Magnetorheological (MR) pin joint is a novel device in which its joint moment resistance can be controlledThe smart pin joint is intended to be used as a controllable connector between the columns and beamsstructure, the main purpose of this paper is to test and characterise the hysteretic behaviour of MR pin jointA test scheme is designed to obtain the dynamic performance of MR pin joint in the dominant earthquake

Keywords： Magnetorheological pin joint     hyperbolic hysteresis model experimental testing frequency dependence    

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Human hip joint center analysis for biomechanical design of a hip joint exoskeleton Article

Wei YANG,Can-jun YANG,Ting XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8,   Pages 792-802 doi: 10.1631/FITEE.1500286

Abstract: The motions of the hip joint center with variation of the flexion angle were measured and the resultingThe humanexoskeleton model was analyzed to further validate the decrease of the hip joint internal forceduring hip joint flexion or abduction by applying the resulting design.

Keywords： Hip joint exoskeleton     Hip joint center     Compatible joint     Human-machine interaction force    

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Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 289-299 doi: 10.1007/s11465-009-0064-3

Abstract: The paper proposes an identification method of the dynamic stiffness matrix of a bearing joint regionThe dynamic stiffness matrix of the bearing joint region can be identified by measuring the matrix ofresults, and there is very high reliability in the identified dynamic stiffness matrix of the bearing joint

Keywords： frequency response function (FRFs)     dynamic stiffness     finite element     synthetic substructure method     joint    

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Effects of Structure of Opening Hole in Gas Distributor on Drying Property for Fluidized Bed Drier

Liu Wei,Tang Wencheng

Strategic Study of CAE 2006, Volume 8, Issue 2,   Pages 47-50

Abstract: The experimental results show that the structure of opening hole in gas distributor has a dual effect

Keywords： gas distributor     structure with opening hole     inert particles     fluidized bed     drying property    

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Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 341-351 doi: 10.1007/s11709-017-0393-y

Abstract:

Slippage corresponds to the relative displacement of a bolted joint subjected to shear loads sincethe construction clearance between the bolt shank and the bolthole at assembly can cause joint slip.Deflections of towers with joint slippage effects is up to 1.9 times greater than the displacements obtainedFinally, joint slip data for different types of angles, bolt diameter and bolt arrangements are generated

Keywords： Joint slip     cyclic loading     Finite element modelling     Experimental joint behavior     damping ratios (   

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General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0681-7

Abstract: solve all the inverse kinematics problems, and there is no common approach to solve arbitrary three-jointgeometric (NAG) methods that obtain the general closed-form inverse kinematics for all types of three-jointalgebraic constraints are used as the conditions precedent to solve the inverse kinematics of three-jointindicating that the inverse solutions are consistent with the given joint angles validate the generalThe simulation result shows the inverse solutions and six sets given joint angles are consistent.

Keywords： inverse kinematics     Paden–Kahan subproblems     three-joint subproblems     product of exponential     closed-form    

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Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma

Frontiers of Medicine doi: 10.1007/s11684-023-1020-z

Abstract: Retroperitoneal liposarcoma (RLPS) is the main subtype of retroperitoneal soft sarcoma (RSTS) and has a poor prognosis and few treatment options, except for surgery. The proteomic and metabolic profiles of RLPS have remained unclear. The aim of our study was to reveal the metabolic profile of RLPS. Here, we performed proteomic analysis (n = 10), metabolomic analysis (n = 51), and lipidomic analysis (n = 50) of retroperitoneal dedifferentiated liposarcoma (RDDLPS) and retroperitoneal well-differentiated liposarcoma (RWDLPS) tissue and paired adjacent adipose tissue obtained during surgery. Data analysis mainly revealed that glycolysis, purine metabolism, pyrimidine metabolism and phospholipid formation were upregulated in both RDDLPS and RWDLPS tissue compared with the adjacent adipose tissue, whereas the tricarboxylic acid (TCA) cycle, lipid absorption and synthesis, fatty acid degradation and biosynthesis, as well as glycine, serine, and threonine metabolism were downregulated. Of particular importance, the glycolytic inhibitor 2-deoxy-D-glucose and pentose phosphate pathway (PPP) inhibitor RRX-001 significantly promoted the antitumor effects of the MDM2 inhibitor RG7112 and CDK4 inhibitor abemaciclib. Our study not only describes the metabolic profiles of RDDLPS and RWDLPS, but also offers potential therapeutic targets and strategies for RLPS.

Keywords： RLPS     proteomics     metabolomics     lipidomics     metabolism    

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Title Author Date Type Operation

Weakening behavior of waterproof performance in joints of shield tunnels under adjacent constructions

Journal Article

Liquid metal printing opening the way for energy conservation in semiconductor manufacturing industry

Journal Article

Impacts of opening baffle of city road tunnels on natural ventilation performance

Weixiao YANG, Jincheng XING, Jianxing LI, Jihong LING, Haixian HAO, Zhiqiang YAN

Journal Article

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Journal Article

Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Journal Article

Lateral-torsional buckling capacity assessment of web opening steel girders by artificial neural networks

Yasser SHARIFI,Sajjad TOHIDI

Journal Article

Improvement of part-load performance of gas turbine by adjusting compressor inlet air temperature and IGV opening

Journal Article

Comments on the OPENING Column of "selected dissertations" in China Engineering Science

null

Journal Article

Dynamic characteristics of a magnetorheological pin joint for civil structures

Yancheng LI,Jianchun LI

Journal Article

Human hip joint center analysis for biomechanical design of a hip joint exoskeleton

Wei YANG,Can-jun YANG,Ting XU

Journal Article

Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Journal Article

Effects of Structure of Opening Hole in Gas Distributor on Drying Property for Fluidized Bed Drier

Liu Wei,Tang Wencheng

Journal Article

Joint slip investigation based on finite element modelling verified by experimental results on wind turbine

Saleh YAGHOOBI, Ahmad SHOOSHTARI

Journal Article

General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Journal Article

Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma

Journal Article