Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 537

Conference Videos 5

Year

2024 2

2023 37

2022 66

2021 52

2020 42

2019 41

2018 20

2017 18

2016 19

2015 15

2014 18

2013 28

2012 18

2011 19

2010 15

2009 23

2008 24

2007 30

2006 5

2005 4

open ︾

Keywords

concrete 48

compressive strength 15

reinforced concrete 10

fly ash 6

durability 5

steel fiber 5

artificial neural network 4

corrosion 4

fiber-reinforced polymer 4

mechanical properties 4

prestressed concrete 4

sensitivity analysis 4

shrinkage 4

temperature 4

weight 4

CFRP 3

Three Gorges Project 3

shear strength 3

stress-strain relationship 3

open ︾

Search scope:

排序： Display mode:

Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4, Pages 412-423 doi: 10.1007/s11709-017-0416-8

Abstract: The changing properties of the young concrete complicate the prediction of serviceability design requirementsAn experimental investigation is performed on four simply supported Light-Weight Concrete (LWC) one-way

Keywords： instantaneous deflection light-weight concrete expanded polystyrene effective moment of inertia cracking

HTML PDF Collect

Materials-oriented integrated design and construction of structures in civil engineering—A review

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1, Pages 24-44 doi: 10.1007/s11709-021-0794-9

Abstract: seismic-resistant structures, masonry arch structures, long-span steel bridges, prefabricated/on-site extruded light-weight

Keywords： integrated design and construction fiber-reinforced concrete fiber-reinforced polymer light-weight

HTML PDF Collect

Experimental study on GFRP pipes under axial compression

QIAN Peng, FENG Peng, YE Lieping

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1, Pages 73-78 doi: 10.1007/s11709-008-0013-y

Abstract: Fiber reinforced polymer (FRP) is suitable for structures in corrosive environment and long-span light-weightstructures due to its high-strength, light-weight, and anti-corrosive qualities.

Keywords： anti-corrosive compression different slenderness corrosive environment long-span light-weight

HTML PDF Collect

Self-deployed execution environment for high performance computing Research Articles

Mingtian SHAO, Kai LU, Wenzhe ZHANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6, Pages 845-857 doi: 10.1631/FITEE.2100016

Abstract:

Traditional (HPC) systems provide a standard preset environment to support scientific computation. However, HPC development needs to provide support for more and more diverse applications, such as artificial intelligence and big data. The standard preset environment can no longer meet these diverse requirements. If users still run these emerging applications on HPC systems, they need to manually maintain the specific dependencies (libraries, environment variables, and so on) of their applications. This increases the development and deployment burden for users. Moreover, the multi-user mode brings about privacy problems among users. Containers like Docker and Singularity can encapsulate the job's , but in a highly customized HPC system, cross-environment application deployment of Docker and Singularity is limited. The introduction of container images also imposes a maintenance burden on system administrators. Facing the above-mentioned problems, in this paper we propose a self-deployed (SDEE) for HPC. SDEE combines the advantages of traditional virtualization and modern containers. SDEE provides an isolated and customizable environment (similar to a virtual machine) to the user. The user is the root user in this environment. The user develops and debugs the application and deploys its special dependencies in this environment. Then the user can load the job to compute nodes directly through the traditional HPC job management system. The job and its dependencies are analyzed, packaged, deployed, and executed automatically. This process enables transparent and rapid job deployment, which not only reduces the burden on users, but also protects user privacy. Experiments show that the overhead introduced by SDEE is negligible and lower than those of both Docker and Singularity.

Keywords： Execution environment High performance computing Light-weight Isolation Overlay

HTML PDF Collect

Status Quo and Development Trend of Light-Weight, High-Strength, and Durable Structural Materials Applied

Wu Zhishen , Liu Jiaping , Zou Dehui , Wang Xin , Shi Jianzhe

Strategic Study of CAE 2019, Volume 21, Issue 3, Pages 31-40 doi: 10.15302/J-SSCAE-2019.03.014

Abstract: text-align: justify;">This paper focuses on the requirements of marine long-span bridges for durability and light-weightsummarizes the research status and development tendency of high-performance steel, high-performance concrete, and fiber-reinforced polymer (FRP), after a thorough investigation on light-weight, high-strength,materials to key zones of bridges are introduced, and the strategic recommendations for the development of light-weightweight, and overcoming the challenges in durability and span of long-span bridges in marine environment

Keywords： marine environment long-span bridges high-performance steel high-performance concrete fiber-reinforced

HTML PDF Collect

Empirical models and design codes in prediction of modulus of elasticity of concrete

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1, Pages 38-48 doi: 10.1007/s11709-018-0479-1

Abstract: Modulus of Elasticity (MOE) is a key parameter in reinforced concrete design.It represents the stress-strain relationship in the elastic range and is used in the prediction of concreteestimation of MOE in the existing codes of practice strongly affect the design and performance of the concreteThe results show underestimation of MOE of conventional concrete in majority of the existing models.Also, considering the consistency between density and mechanical properties of concrete, the predicted

Keywords： modulus of elasticity normal strength normal weight concrete empirical models design codes compressive

HTML PDF Collect

Solving topology optimization problems by the Guide-Weight method

Xinjun LIU, Zhidong LI, Liping WANG, Jinsong WANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 136-150 doi: 10.1007/s11465-010-0126-6

Abstract: Guide-Weight method, proposed first by Chen in 1980s, was effectively and successfully used in antennaWhen the Guide-Weight method is applied into topology optimization, it works very well with unified andThe algorithm of the Guide-Weight method and the improvement on it are described; two formulations oftopology optimization solved by the Guide-Weight method combining with SIMP method are presented; subsequently, three numerical examples are provided, and comparison of the Guide-Weight method with other methods

Keywords： Guide-Weight method topology optimization SIMP method

HTML PDF Collect

Characterization of soil low-molecular-weight organic acids in the Karst rocky desertification region

Xiaoliang LI, Xiaomin CHEN, Xia LIU, Lianchuan ZHOU, Xinqiang YANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2, Pages 195-203 doi: 10.1007/s11783-012-0391-1

Abstract: Soil low-molecular-weight (LMW) organic acids play important roles in the soil-forming process and the

Keywords： Karst rocky desertification low-molecular-weight (LMW) organic acids distribution characteristics soil

HTML PDF Collect

Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Frontiers of Structural and Civil Engineering Pages 812-826 doi: 10.1007/s11709-023-0940-7

Abstract: A falling weight deflectometer is a testing device used in civil engineering to measure and evaluate

Keywords： falling weight deflectometer modulus of subgrade reaction elastic modulus metaheuristic algorithms

HTML PDF Collect

Photocatalysis: from solar light to hydrogen energy

Frontiers in Energy 2021, Volume 15, Issue 3, Pages 565-567 doi: 10.1007/s11708-021-0784-6

HTML PDF Collect

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1, Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.First, by retrieving the ratio of particle concentrations at different time, the intensity of incident lightThere exists narrow error between the calculated and pre-detected value of the intensity of incident light

Keywords： in-line measurement particle size distribution (PSD) incident light intensity particle concentration light fluctuation

HTML PDF Collect

Plasmonic light trapping for enhanced light absorption in film-coupled ultrathin metamaterial thermophotovoltaic

Qing NI, Hassan ALSHEHRI, Yue YANG, Hong YE, Liping WANG

Frontiers in Energy 2018, Volume 12, Issue 1, Pages 185-194 doi: 10.1007/s11708-018-0522-x

Abstract: Ultrathin cells have gained increasing attention due to their potential for reduced weight, reduced costHowever, the light absorption in ultrathin cells is usually very weak compared to the corresponding bulk

Keywords： metamaterial thermophotovoltaic plasmonics light trapping selective absorption

HTML PDF Collect

HQ in inland saline-alkaline water under different light qualities

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1479-2

Abstract:

• Optimal growth of Chlorella in inland saline-alkaline water was achieved by blue LED.

Keywords： Light quality Chlorella Inland saline-alkaline water Fatty acid Biodiesel property

HTML PDF Collect

Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Frontiers of Medicine 2023, Volume 17, Issue 4, Pages 675-684 doi: 10.1007/s11684-022-0970-x

Abstract: exploratory factor analysis was applied, the 15 indicators were divided into 6 core elements that varied in weight

Keywords： critical care medicine quality control evaluation exploratory factor analysis (EFA) model

HTML PDF Collect

Uncovering the effect of poly(ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: Various hydrophilic poly(ethylene-co-vinyl alcohol) (EVOH) were used herein to precisely control the structure and hydrodynamic properties of polysulfone (PSF) membranes. Particularly, to prepare pristine PSF and PSF/EVOH blends with increasing vinyl alcohol (VOH: 73%, 68%, 56%), the non-solvent-induced phase separation (NIPS) technique was used. Polyethylene glycol was used as a compatibilizer and as a porogen in N,N-dimethylacetamide. Rheological and ultrasonic separation kinetic measurements were also carried out to develop an ultrafiltration membrane mechanism. The extracted membrane properties and filtration capabilities were systematically compared to the proposed mechanism. Accordingly, the addition of EVOH led to an increase in the rheology of the dopes. The resulting membranes exhibited a microporous structure, while the finger-like structures became more evident with increasing VOH content. The PSF/EVOH behavior was changed from immediate to delayed segregation due to a change in the hydrodynamic kinetics. Interestingly, the PSF/EVOH32 membranes showed high hydrophilicity and achieved a pure water permeability of 264 L·m^–2·h^–1·bar^–1, which was higher than that of pure PSF membranes (171 L·m^–2·h^–1·bar^–1). In addition, PSF/EVOH32 rejected bovine serum albumin at a high rate (> 90%) and achieved a significant restoration of permeability. Finally, from the thermodynamic and hydrodynamic results, valuable insights into the selection of hydrophilic copolymers were provided to tailor the membrane structure while improving both the permeability and antifouling performance.

Keywords： polysulfone blend modification ultrafiltration membrane formation hydrodynamics poly(ethylene-co-vinyl alcohol) copolymer