Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 197

Year

2023 10

2022 23

2021 22

2020 13

2019 15

2018 5

2017 8

2016 6

2015 6

2014 17

2013 7

2012 4

2011 8

2010 11

2009 4

2008 12

2007 13

2006 4

2005 5

2003 1

open ︾

Keywords

compressive strength 23

strength 18

shear strength 9

concrete 6

artificial neural network 4

high strength 4

ANFIS 2

Fatigue 2

Methane production 2

design 2

different 2

fly ash 2

high strength steel 2

parametric analysis 2

precipitation strengthening 2

regression analysis 2

self-compacting concrete 2

strength properties 2

temperature 2

open ︾

Search scope:

排序： Display mode:

Synthesis of mono and bis-4-methylpiperidiniummethyl-urea as corrosion inhibitors for steel in acidic

Abbas TEIMOURI, Nasrin SOLTANI, Alireza Najafi CHERMAHINI

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1, Pages 43-50 doi: 10.1007/s11705-010-0532-7

Abstract: methylpiperidiniummethyl urea were synthesized, characterized and used as new corrosion inhibitors of mild steel in the acidic

Keywords： corrosion inhibitors mild steel acidic medium theoretical studies DFT

HTML PDF Collect

Removing ammonia from air with a constant pH, slightly acidic water　spray wet scrubber using recycled

Ahmad Kalbasi Ashtari, Amir M. Samani Majd, Gerald L. Riskowski, Saqib Mukhtar, Lingying Zhao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0869-3

Abstract: Slightly acidic solutions are a practical means of removing ammonia from air Scrubbed NH accumulatesNH removal and increased NH collection Previous research on wet scrubbers has only studied highly acidicThe objective of this study was to determine if a spray scrubber with slightly acidic and higher pH scrubbingThis study has shown that slightly acidic scrubbing solutions are a practical means of removing ammonia

Keywords： Ammonia Spray wet scrubber Slightly acidic scrubbing solution Controlled pH Removal efficiency

HTML PDF Collect

Effective and selective separation of perrhenate from acidic wastewater by super-stable, superhydrophobic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1456-9

Abstract:

• A ZnO-biochar hybrid composite was prepared by solvothermal-pyrolysis synthesis.

Keywords： Selectivity Adsorption Re(VII) ZnO Biochar

HTML PDF Collect

A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1633-0

Abstract:

● pz-UiO-66 was synthesized facilely by a solvothermal method.

Keywords： Pyrazine Metal-organic frameworks Copper removal Strong acidity High selectivity

HTML PDF Collect

nsted acidic ionic liquids

Xiaomeng WANG, Mingjuan HAN, Hui WAN, Cao YANG, Guofeng GUAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1, Pages 107-112 doi: 10.1007/s11705-010-0539-0

Abstract: nsted acidic ionic liquids (ILs), -methylimidazole hydrogen sulfate ([HMIm]HSO ) and -methylpyrrolidone

Keywords： br?nsted ionic liquids model gasoline thiophene extraction density functional theory

HTML PDF Collect

Improved CO

Mahboube Ghahramaninezhad, Fatemeh Mohajer, Mahdi Niknam Shahrak

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3, Pages 425-435 doi: 10.1007/s11705-019-1873-5

Abstract: Afterwards, acidic hydrogen atoms in the hydroxyl groups of ZIF-91 were exchanged with lithium cations

Keywords： hard/hard structure acidic hydrogen ZIF-91 carbon capture ZIF-91-OLi

HTML PDF Collect

Selective removal of iron(III) from highly salted chloride acidic solutions by solvent extraction using

Guoping Hu, Yue Wu, Desheng Chen, Yong Wang, Tao Qi, Lina Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3, Pages 528-537 doi: 10.1007/s11705-020-1955-4

Abstract: Metal ions including Fe , Ca , Mg , Ni , Co and Cu are commonly found in the leaching solution of laterite-nickel ores, and the pre-removal of Fe is extremely important for the recovery of nickel and cobalt. Di(2-ethylhexyl)phosphate acid (D2EHPA) showed high extraction rate and selectivity of Fe over other metal ions. The acidity of the aqueous solution is crucial to the extraction of Fe , and the stoichiometry ratio between Fe and the extractant is 0.86:1.54. The enthalpy for the extraction of Fe using D2EHPA was 19.50 kJ/mol. The extraction of Fe was ≥99% under the optimized conditions after a three-stage solvent extraction process. The iron stripping effects of different reagents showed an order of H C O >NH HCO >HCl>NaCl>NaHCO >Na SO . The stripping of Fe was ≥99% under the optimized conditions using H C O as a stripping reagent.

Keywords： solvent extraction iron di(2-ethylhexyl)phosphate acid separation

HTML PDF Collect

Electrolyzed water and its application in animal houses

Weichao ZHENG,Li NI,Baoming LI

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3, Pages 195-205 doi: 10.15302/J-FASE-2016109

Abstract: Slightly acidic electrolyzed water (SAEW, pH 5.0–6.5) and neutral electrolyzed water (NEW, pH 6.5–8.5

Keywords： disinfection poultry and livestock slightly acidic electrolyzed water neutral electrolyzed water

HTML PDF Collect

Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 288-293 doi: 10.1007/s11709-018-0480-8

Abstract: The most common experimental methods of measuring material strength are the uniaxial compressive andCompressive strength is higher than tensile strength for a material.In this work, a unified relation of material strength under uniaxial compression and tension is developedThis constitutive relation is quantitatively illustrated by a function for analyzing the material strengthIt is full of interest to give a scientific illustration for designing the high-strength materials and

Keywords： strength fracture mechanics

HTML PDF Collect

Electro-assisted regeneration of ion exchange resins

LIU Zhigang, WANG Ying, LI Yansheng, CHANG Hui

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4, Pages 410-414 doi: 10.1007/s11783-008-0069-x

Abstract: Electro-assisted regeneration (EAR) for the mixed bed of strongly acidic cation and weakly basic anion

Keywords： effluent volume acidic three-compartment weakly exchange

HTML PDF Collect

The effects of interfacial strength on fractured microcapsule

Luthfi Muhammad MAULUDIN, Chahmi OUCIF

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2, Pages 353-363 doi: 10.1007/s11709-018-0469-3

Abstract: The effects of interfacial strength on fractured microcapsule are investigated numerically.attention is given to the effects of cohesive fracture on the microcapsule interface, namely fracture strengthmicrocapsule, the load carrying capacity of self-healing material under tension increases as interfacial strengthIn addition, given the fixed fracture strength of the interface of microcapsule shell, the higher the

Keywords： interfacial strength cohesive elements microcapsule core-shell thickness ratio fracture properties

HTML PDF Collect

Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1595-7

Abstract:

● Mechanical behavior of MBT waste affected by loading rate was investigated.

Keywords： Mechanically and biologically treated waste Landfill Triaxial test Loading rate Axial strain Shear strength

HTML PDF Collect

The strength–dilatancy characteristics embraced in hypoplasticity

Zhongzhi FU, Sihong LIU, Zijian WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2, Pages 178-187 doi: 10.1007/s11709-013-0191-0

Abstract: The strength-dilatancy characteristics of frictional materials embraced in the hypoplastic model proposedThe flow rule, the failure state surface equation and the strength-dilatancy relationship embraced inThe performance of the two hypoplastic models in reproducing the relationship between the peak strengthNumerical investigations show that the performance in reproducing the strength-dilatancy relationship

Keywords： strength dilatancy hypoplasticity frictional materials

HTML PDF Collect

Slender reinforced concrete shear walls with high-strength concrete boundary elements

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1, Pages 138-151 doi: 10.1007/s11709-022-0897-y

Abstract: advancements in the field of concrete materials over the past few decades, concrete mixes of high compressive strength, commonly referred to as high-strength concrete (HSC), have been developed.The finite-element model of a conventional normal-strength concrete (NSC) prototype wall was validatedThe HSC wall exhibited improved strength and stiffness, and thereby, allowed reduction in the longitudinalreinforcement area and size of the boundary elements for the same strength of the conventional wall.

Keywords： slender walls high-strength concrete rectangular and barbell-shaped walls cold joints

HTML PDF Collect

Effect of environment change on the strength of cement/lime treated clays

Takenori HINO, Rui JIA, Seiji SUEYOSHI, Tri HARIANTO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2, Pages 153-165 doi: 10.1007/s11709-012-0153-y

Abstract: The mechanism of the ground environment change and its effect on the strength of cement/lime treatedThe strength development of improved soil using cement and lime in different curing environments wasinvestigated in the laboratory for studying the effect of environment change on the strength also.It has been found that the strength deterioration of improved soil in deep mixing method is due to 1)When examining the long-term strength for preventing strength degradation, the effect of environmental

Keywords： soil solidification ground environment strength deterioration pH oxidation-reduction potential (ORP)