Resource Type

Journal Article 1401

Year

2024 1

2023 107

2022 102

2021 115

2020 119

2019 92

2018 69

2017 81

2016 87

2015 69

2014 35

2013 41

2012 41

2011 47

2010 38

2009 38

2008 41

2007 39

2006 30

2005 20

open ︾

Keywords

sustainable development 82

development 62

development strategy 52

China 23

development trend 23

high-quality development 16

food security 11

green development 11

2035 10

renewable energy 10

strategy 10

ecological civilization 9

technology 9

the Qinba Mountain Area 9

application 8

artificial intelligence 8

exploration and development 8

Internet Plus 7

industrialization 7

open ︾

Search scope:

排序: Display mode:

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 127-138 doi: 10.1007/s11708-020-0661-8

Abstract: This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance lengthIt is found that superhydrophobic microchannels have a longer hydraulic entrance length than that ofThe dimensionless hydraulic entrance length slightly increases with the increasing slip length at approximatelyA new correlation to predict the entrance length in square microchannels with different slip lengths

Keywords: laminar flow     hydraulic entrance length     super hydrophobic surface     slip length     hydraulic diameter    

Structural behavior of intermediate length cold-formed steel rack columns with C-stitches

M. ANBARASU, Mahmud ASHRAF

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 937-949 doi: 10.1007/s11709-019-0528-4

Abstract: presents an experimental and numerical investigation on the strength and performance of intermediate lengthused to carry out a parametric study to examine changes in structural response due to variations in length

Keywords: cold-formed steel columns     C-stitches     intermediate length columns     distortional buckling    

Association between telomere length and survival in cancer patients: a meta-analysis and review of literature

Xinsen Xu,Kai Qu,Qing Pang,Zhixin Wang,Yanyan Zhou,Chang Liu

Frontiers of Medicine 2016, Volume 10, Issue 2,   Pages 191-203 doi: 10.1007/s11684-016-0450-2

Abstract:

The relationship between telomere length and cancer survival has been widely studied.A total of 29 studies evaluated telomere length in the peripheral blood; 22 studies evaluated telomerelength in the tumor tissue.First, in the peripheral blood studies, for solid tumor patients with shortened telomere length, thepatients with lower telomere length ratios, the combined HRs were 0.66 (95%CI, 0.53–0.83) and

Keywords: telomere     survival     cancer     meta-analysis    

Modelling of dynamic contact length in rail grinding process

Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 242-248 doi: 10.1007/s11465-014-0305-y

Abstract: First of all, it’s important to analyze the contact length between the grinding stone and the rail, because the contact length is a critical parameter to measure the grinding capabilities of stones.Therefore the theoretical model for contact length is developed based on the geometrical analysis.

Keywords: rail grinding     contact length     dynamic model     Hamiltonian system     grinding stone     rail grinding car    

The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 662-671 doi: 10.1007/s11709-018-0512-4

Abstract: An LMA defect in steel cables can be measured accurately when it is longer than a certain length.However, for defects in early stage, where the length of corrosion area is short, the MF examinationIn this study, the effect of defect length on the MF examination for corrosion detection of bridge cablesAn original analytical model to quantify the influence of defect length is proposed based on the equivalentresults show that the area loss caused by short corrosion damage will be underestimated if the defect-length

Keywords: bridge cable     corrosion detection     defect length     MF examination     quantitative evaluation    

Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 11-11 doi: 10.1007/s11465-021-0667-x

Abstract: In this paper, a typical spatial pipeline is taken as the research object, the length of straight-lineThe relationship between straight-line segment length and parameters that determine the geometric characteristicsBased on the analysis of the influence of straight-line segment length on the vibration characteristicsdeveloped optimization method can obtain the optimal single value or interval of the straight-line segment lengthefficiency of the golden section algorithm is remarkably higher than that of the genetic algorithm for length

Keywords: length adjustment     spatial pipeline     aero-engine     vibration avoidance optimization     genetic algorithm    

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 105-110 doi: 10.1007/s11709-009-0014-5

Abstract: The vertical and horizontal geodesic coordinates measured with length were defined as coordinate parametersThe formula for the latitudinal scale factor of length for geodetic parallel lines was derived, by which

Keywords: coordinate parameter     the first fundamental form on the ellipsoidal surface     latitudinal scale factor of length    

Secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams

Lizhao DAI; Wengang XU; Lei WANG; Shanchang YI; Wen CHEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 388-400 doi: 10.1007/s11709-022-0809-1

Abstract: post-tensioned concrete beams to explore the effects of different fracture positions on secondary transfer lengthA numerical model is developed and used to predict the secondary transfer length and residual prestressfractured strand can be re-anchored in concrete through the secondary anchorage, and the secondary transfer lengthThe residual prestress of fractured strand increases gradually in the secondary transfer length, and

Keywords: post-tensioned concrete beams     strand fracture     secondary transfer length     residual prestress    

Aerodynamic challenges in span length of suspension bridges

XIANG Haifan, GE Yaojun

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 153-162 doi: 10.1007/s11709-007-0016-0

Abstract: technological feasibility of suspension bridges with longer spans, the static estimation of feasible span lengthtrial design of a 5 000 m suspension bridge, which is estimated as a reasonable limitation of span length, is finally conducted to respond to the tomorrow s challenge in span length of suspension bridges with

Keywords: requirement     reasonable limitation     challenge     particular     economical construction    

Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links

CHEN Xin-bo, YU Zhen

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 76-79 doi: 10.1007/s11465-005-0007-6

Abstract: paper, (1) a new method for realizing intermittent motion, using linkages with a slight difference in length

Keywords: synthesis     useful     intermittent     intermittent-motion     traditional    

Effect of ligand chain length on hydrophobic charge induction chromatography revealed by molecular dynamics

Lin ZHANG, Yan SUN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 456-463 doi: 10.1007/s11705-013-1357-y

Abstract: The effect of the ligand chain length on protein behavior in HCIC was studied.The ligand chain length has a significant effect on both the probability and the irreversibility of theThe simulation results elucidated the effect of the ligand chain length, which is beneficial for the

Keywords: adsorption     desorption     irreversibility     protein conformational transition     molecular dynamics simulation    

Effect of nonionic side chain length of polycarboxylate-ether-based high-range water-reducing admixture

Süleyman ÖZEN, Muhammet Gökhan ALTUN, Ali MARDANI-AGHABAGLOU, Kambiz RAMYAR

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1573-1582 doi: 10.1007/s11709-020-0680-x

Abstract: water-reducing admixtures with the same free nonionic content, anionic/nonionic molar ratio, and main chain lengthThe side chain length of the admixture did not have significant effects on the compressive strength and

Keywords: water-reducing admixture     side chain length     cement paste     fluidity     compressive strength    

Effect of embedment length of untreated natural fibres on the bond behaviour in cement mortar

Gudimella RAMAKRISHNA, Sriraman PRIYADHARSHINI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 454-460 doi: 10.1007/s11709-017-0454-2

Abstract: parameters included in the investigation are water/cement (w/c) ratio, sand gradation and embedment lengthThe other varying parameters such as mortar mixes, sand gradation, w/c ratio and embedded length also

Keywords: bond strength     cement mortar     natural fibre     pullout test     type of failure    

Appendiceal inflammation affects the length of stay following appendicectomy amongst children: a myth

Khurram Siddique, Shirin Mirza, Gandra Harinath

Frontiers of Medicine 2013, Volume 7, Issue 2,   Pages 264-269 doi: 10.1007/s11684-013-0259-1

Abstract:

The effect of the severity of appendiceal inflammation on post-operative stay in children following appendicectomy has shown conflicting results. This study was conducted to determine the association between the severity of appendiceal inflammation and post-operative stay amongst children undergoing open appendicectomy. A retrospective cohort study was conducted at a District General Hospital for two years. A total of 204 patients were included in the study with an age range between 3 and 16 years. Females were 54.9% while the rest were male. Mean age was 12.5±3 years. The association of the severity of appendiceal inflammation and post-operative stay was assessed by multivariable Cox Proportional hazards model. Mean post-operative stay was 2.32 days (95% CI 2.14–2.51). Macroscopically perforated appendix, histological inflammation and post-operative complications were significantly associated with post-operative stay on univariable analysis (P<0.05). Whereas, the multivariable analysis showed that the post-operative stay was significantly prolonged only in case of either perforated appendix or post-operative complications while it remained unaffected by the histological inflammation.

Keywords: appendiceal inflammation     post-operative stay     paediatrics    

Heterogeneous length-of-stay modeling of post-acute care residents in the nursing home with competing

Frontiers of Engineering Management   Pages 577-591 doi: 10.1007/s42524-022-0203-7

Abstract: Accurate prediction of the PAC residents’ length-of-stay (LOS) with multiple discharge dispositions (

Keywords: nursing home     predictive analytics     individualized prediction     competing risks     health outcomes    

Title Author Date Type Operation

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Journal Article

Structural behavior of intermediate length cold-formed steel rack columns with C-stitches

M. ANBARASU, Mahmud ASHRAF

Journal Article

Association between telomere length and survival in cancer patients: a meta-analysis and review of literature

Xinsen Xu,Kai Qu,Qing Pang,Zhixin Wang,Yanyan Zhou,Chang Liu

Journal Article

Modelling of dynamic contact length in rail grinding process

Shaodan ZHI,Jianyong LI,A. M. ZAREMBSKI

Journal Article

The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

Journal Article

Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Journal Article

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Journal Article

Secondary transfer length and residual prestress of fractured strand in post-tensioned concrete beams

Lizhao DAI; Wengang XU; Lei WANG; Shanchang YI; Wen CHEN

Journal Article

Aerodynamic challenges in span length of suspension bridges

XIANG Haifan, GE Yaojun

Journal Article

Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links

CHEN Xin-bo, YU Zhen

Journal Article

Effect of ligand chain length on hydrophobic charge induction chromatography revealed by molecular dynamics

Lin ZHANG, Yan SUN

Journal Article

Effect of nonionic side chain length of polycarboxylate-ether-based high-range water-reducing admixture

Süleyman ÖZEN, Muhammet Gökhan ALTUN, Ali MARDANI-AGHABAGLOU, Kambiz RAMYAR

Journal Article

Effect of embedment length of untreated natural fibres on the bond behaviour in cement mortar

Gudimella RAMAKRISHNA, Sriraman PRIYADHARSHINI

Journal Article

Appendiceal inflammation affects the length of stay following appendicectomy amongst children: a myth

Khurram Siddique, Shirin Mirza, Gandra Harinath

Journal Article

Heterogeneous length-of-stay modeling of post-acute care residents in the nursing home with competing

Journal Article