Resource Type

Journal Article 78

Conference Videos 1

Year

2023 13

2022 14

2021 6

2020 11

2019 3

2018 2

2017 5

2016 1

2015 1

2014 5

2013 1

2012 5

2011 4

2010 2

2009 1

2008 1

2007 1

2001 1

open ︾

Keywords

DX pile 3

Biodiesel 2

Free nitrous acid 2

Rockburst 2

biodiesel 2

mechanical properties 2

numerical analysis 2

transesterification 2

-ECBM 1

1 1

3-propanediol 1

5-dimethylpyridine 1

In situ database 1

In situ pyrolysis 1

in-situ characterization 1

in situ test 1

ALK fusion 1

In situ XAFS analysis 1

In situ generation 1

open ︾

Search scope:

排序： Display mode:

Challenge of biodiesel production from sewage sludge catalyzed by KOH, KOH/activated carbon, and KOH/CaO

Xuemin Wu,Fenfen Zhu,Juanjuan Qi,Luyao Zhao,Fawei Yan,Chenghui Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0913-y

Abstract: The transesterification reaction is catalyzed using an acid catalyst instead of base catalysts becauseIn this study, we utilize in situ transesterification by base catalyst (KOH, KOH/activated carbon (AC

Keywords： Biodiesel     Sewage sludge     Base catalyst     In situ transesterification    

HTML PDF Collect

Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 11-15 doi: 10.1007/s11705-007-0003-y

Abstract: Methyl esters (biodiesel) were produced by the transesterification of cottonseed oil with methanol inTiO-SO and ZrOSO showed high activity for the transesterification.

Keywords： BrØnsted     reaction     presence     cottonseed     biodiesel    

HTML PDF Collect

Transesterification of soybean oil to biodiesel over kalsilite catalyst

Guang WEN, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 325-329 doi: 10.1007/s11705-010-0574-x

Abstract: The transesterification reaction of soybean oil with methanol over kalsilite-based heterogeneous catalystsHowever, this kalsilite had relatively low catalytic activity for the transesterification reaction.

Keywords： kalsilite     heterogeneous catalyst     transesterification     biodiesel    

HTML PDF Collect

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 287-296 doi: 10.1007/s11705-010-0529-2

Abstract: The development and application of ex-situ presulfurization (EPRES) technology for hydrotreating catalysts

Keywords： ex-situ presulfurization     in situ presulfurization     hydrotreating catalyst     sulfur utilization ratio    

HTML PDF Collect

Application of transesterification for the production of biodiesel

Zhang Huaiyuan,Song Yuanda

Strategic Study of CAE 2010, Volume 12, Issue 1,   Pages 24-29

Abstract: Supported solid base catalysis will be the main trend for biodiesel preparation by transesterification

Keywords： biodiesel     transesterification     homogeneous acid/base     solid acid/base     lipase     supercritical method    

HTML PDF Collect

Application of heterogeneous catalysis to biodiesel synthesis using microalgae oil

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1343-9

Abstract:

• Microalgae oil application for biodiesel synthesis is discussed.

Keywords： Biodiesel     Heterogeneous catalysis     Transesterification     Microalgae oil    

HTML PDF Collect

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 555-563 doi: 10.1007/s11705-018-1715-x

Abstract:

Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using

Keywords： polyolefin nanocomposites     metallocenes     methylaluminoxane    

HTML PDF Collect

Metakaolinite as a catalyst for biodiesel production from waste cooking oil

Jorge RAMIREZ-ORTIZ, Merced MARTINEZ, Horacio FLORES

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 403-409 doi: 10.1007/s11705-012-1224-2

Abstract: The use of metakaolinite as a catalyst in the transesterification reaction of waste cooking oil withParameters related to the transesterification reaction, including temperature, time, the amount of catalystThe transesterification reaction produced biodiesel in a maximum yield of 95% under the following conditionsshowed that metakaolinite is a prominent, inexpensive, reusable and thermally stable catalyst for the transesterification

Keywords： biodiesel     metakaolinite     transesterification     waste cooking oil    

HTML PDF Collect

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and thermal stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1267-1279 doi: 10.1007/s11705-022-2291-7

Abstract: Vitrimers can undergo dynamic transesterification reaction without external catalysts due to the autocatalytic

Keywords： vitrimers     rosin     catalyst-free     high mechanical properties     dynamic transesterification reaction    

HTML PDF Collect

Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 240-240 doi: 10.1007/s11709-009-0100-8

HTML PDF Collect

Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis

Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 67-73 doi: 10.1007/s11705-010-0541-6

Abstract: reforming (APR) and catalytic hydrogenation of glycerol, a novel reaction system of liquid phase in situreforming reaction; the hydrogen generated from the APR of glycerol can be quickly transformed to the in situ

Keywords： glycerol     aqueous-phase reforming     1     3-propanediol     in-situ reduction    

HTML PDF Collect

In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 456-461 doi: 10.1007/s11709-014-0259-5

Abstract: The present paper examines the evaluation of liquefaction potential of an earth dam foundation in Tunisia. The assessment of soil liquefaction was made using deterministic and probabilistic simplified procedures developed from several case histories. The data collected from the field investigation performed before and after the vibrocompaction are analyzed and the results are reported. The obtained results show that after vibrocompaction, a significant improvement of the soil resistance reduces the liquefaction potential of the sandy foundation. Indeed, in the untreated layers, the factor of safety drops below 1 which means that the soil is susceptible for liquefaction. However, in the compacted horizons, the values of exceed the unit which justifies the absence of liquefaction hazard of the foundation.

Keywords： liquefaction     cone penetration test (CPT)     standard penetration test (SPT)     vibrcompaction     sand    

HTML PDF Collect

In situ synthesis of FeS/Carbon fibers for the effective removal of Cr(VI) in aqueous solution

Rongrong Zhang, Daohao Li, Jin Sun, Yuqian Cui, Yuanyuan Sun

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1247-8

Abstract: Abstract • FeS/carbon fibers were in situ synthesized with Fe-carrageenan hydrogel fiber. • The doubleTherefore, this study investigates in situ synthesized FeS/carbon fibers with an Fe-carrageenan biomass

Keywords： Carrageenan     FeS     Double-helix structure     Hexavalent chromium    

HTML PDF Collect

In-situ condition monitoring of reinforced concrete structures

Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 420-437 doi: 10.1007/s11709-016-0336-z

Abstract: deterioration mechanisms, performance characteristics and parameters and condition monitoring of in situ

Keywords： concrete     carbonation     chloride     corrosion     monitoring     models    

HTML PDF Collect

Phase problems in optical imaging Review

Guo-hai SITU, Hai-chao WANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1277-1287 doi: 10.1631/FITEE.1700298

Abstract: Because the phase contains more information about the fieldcompared to the amplitude, measurement of the phase is encounteredin many branches of modern science and engineering. Direct measurementof the phase is difficult in the visible regime of the electromagneticwave. One must employ computational techniques to calculate the phasefrom the captured intensity. In this paper, we provide a review ofour recent work on iterative phase retrieval techniques and theirapplications in optical imaging.

Keywords： Phase retrieval     Phase imaging     Computational imaging     Gerchberg-Saxton algorithm     Optical encryption     Computer-generated hologram    

HTML PDF Collect

Title Author Date Type Operation

Challenge of biodiesel production from sewage sludge catalyzed by KOH, KOH/activated carbon, and KOH/CaO

Xuemin Wu,Fenfen Zhu,Juanjuan Qi,Luyao Zhao,Fawei Yan,Chenghui Li

Journal Article

Biodiesel production by the transesterification of cottonseed oil by solid acid catalysts

CHEN He, PENG Baoxiang, WANG Dezheng, WANG Jinfu

Journal Article

Transesterification of soybean oil to biodiesel over kalsilite catalyst

Guang WEN, Zifeng YAN

Journal Article

Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China

Yulan GAO, Xiangchen FANG, Zhenmin CHENG

Journal Article

Application of transesterification for the production of biodiesel

Zhang Huaiyuan,Song Yuanda

Journal Article

Application of heterogeneous catalysis to biodiesel synthesis using microalgae oil

Journal Article

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Journal Article

Metakaolinite as a catalyst for biodiesel production from waste cooking oil

Jorge RAMIREZ-ORTIZ, Merced MARTINEZ, Horacio FLORES

Journal Article

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and thermal stability

Journal Article

Propagation characteristics of transient waves in low-strain integrity testing on cast-in-situ concrete

Hanlong LIU, Xuanming DING

Journal Article

Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis

Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG

Journal Article

In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Journal Article

In situ synthesis of FeS/Carbon fibers for the effective removal of Cr(VI) in aqueous solution

Rongrong Zhang, Daohao Li, Jin Sun, Yuqian Cui, Yuanyuan Sun

Journal Article

In-situ condition monitoring of reinforced concrete structures

Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR

Journal Article

Phase problems in optical imaging

Guo-hai SITU, Hai-chao WANG

Journal Article