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Sonication and grinding pre-treatments on

Kit Wayne Chew, Pau Loke Show, Yee Jiun Yap, Joon Ching Juan, Siew Moi Phang, Tau Chuan Ling, Jo-Shu Chang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1040-0

Abstract:

Effects of sonication and grinding pretreatment on agarose quality were observed.

Successful agarose extraction with direct PEG method without the need to dry agar.

FTIR spectra and the characteristics peaks in agarose are explained.

Improvements in gel strength and sulfate content properties in agarose samples.

Keywords： Agarose     Gelidium     Pretreatment     Seaweed     Sonication    

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Towards Cr(VI)-free anodization of aluminum alloys for aerospace adhesive bonding applications: A review

Shoshan T. Abrahami, John M. M. de Kok, Herman Terryn, Johannes M. C. Mol

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 465-482 doi: 10.1007/s11705-017-1641-3

Abstract: For more than six decades, chromic acid anodizing (CAA) has been the central process in the surface pre-treatmentand appraisal of proposed alternatives to CAA, including combinations of multiple anodizing steps, pre- and post anodizing treatments.the oxide properties, such as morphological features (e.g., pore size, barrier layer thickness) and surface

Keywords： aluminum     Cr(VI)-free     surface pre-treatments     anodizing     adhesive bonding    

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Testing development of different surface treatments on pervious concrete

Mina YEKKALAR,Liv HASELBACH,Quinn LANGFITT

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 385-393 doi: 10.1007/s11709-016-0351-0

Abstract: have wintertime benefits as melting snow may percolate into the system instead of refreezing on the surfaceEnhancing the surface microtexture of pervious concrete may also be beneficial in preventing icing orThis research explored different surface treatments on pervious concrete specimens both qualitativelytreatments on pavement samples with little surface area such as laboratory specimens or sidewalk sectionsThe other purpose was to make a preliminary decision of which surface treatments to use for a sidewalk

Keywords： pervious concrete     static coefficient of friction     pedestrian    

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Evaluation of activated sludge properties’ changes in industrial-wastewater pre-treatment: role of residual

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1675-3

Abstract:

● Medium poly Al salts dominated the PAC residual salts with a rational dosage.

Keywords： flocculation     Hydroxyl-aluminum     Hydrolysis reaction     Reactor performance     Activated sludge property     Surface    

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The unregulated commercialization of stem cell treatments: a global perspective

Douglas Sipp

Frontiers of Medicine 2011, Volume 5, Issue 4,   Pages 348-355 doi: 10.1007/s11684-011-0150-x

Abstract: notwithstanding, hundreds of companies and private clinics around the world now sell putative stem cell treatmentsIn this review, I provide an overview of the global industry in pseudomedical stem cell treatments, with

Keywords： stem cell tourism     medical ethics     stem cell policy and regulation     alternative medicine    

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Impact of diabetes and its treatments on skeletal diseases

Wenbo Yan, Xin Li

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 81-90 doi: 10.1007/s11684-013-0243-9

Abstract: Better knowledge of how diabetic conditions and its treatments influence skeletal tissues is in great

Keywords： diabetes     bone     osteoporosis     osteoarthritis    

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assimilable organic carbon (AOC) levels in MBR effluents followed by coagulation, ozonation and combined treatments

Xiaojie Shi, Zhuo Chen, Yun Lu, Qi Shi, Yinhu Wu, Hong-Ying Hu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1360-8

Abstract: After additional tertiary treatments, the largest increases in absolute and specific AOCs were detected

Keywords： Assimilable organic carbon (AOC)     MBR effluents     Tertiary treatments     Coagulation     Ozonation    

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Cytokine storm and translating IL-6 biology into effective treatments for COVID-19

Frontiers of Medicine doi: 10.1007/s11684-023-1044-4

Abstract: As of May 3, 2023, the coronavirus disease 2019 (COVID-19) pandemic has resulted in more than 760 million confirmed cases and over 6.9 million deaths. Several patients have developed pneumonia, which can deteriorate into acute respiratory distress syndrome. The primary etiology may be attributed to cytokine storm, which is triggered by the excessive release of proinflammatory cytokines and subsequently leads to immune dysregulation. Considering that high levels of interleukin-6 (IL-6) have been detected in several highly pathogenic coronavirus-infected diseases, such as severe acute respiratory syndrome in 2002, the Middle East respiratory syndrome in 2012, and COVID-19, the IL-6 pathway has emerged as a key in the pathogenesis of this hyperinflammatory state. Thus, we review the history of cytokine storm and the process of targeting IL-6 signaling to elucidate the pivotal role played by tocilizumab in combating COVID-19.

Keywords： SARS-CoV-2     COVID-19     cytokine storm     interleukin-6     tocilizumab    

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Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 376-382 doi: 10.1007/s11709-010-0086-2

Abstract: Pre-tensioned high strength trusses using alloy steel bar are widely used as glass wall supporting systemsvarious effects, such as support settlement due to live loads and material creep, temperature change, pre-tension

Keywords： tension system     glass wall     nonlinear analysis     pre-tensioning     second-order analysis    

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A pre-compensation method of the systematic contouring error for repetitive command paths

D. L. ZHANG,Y. H. CHEN,Y. P. CHEN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 367-372 doi: 10.1007/s11465-015-0367-5

Abstract:

For a repetitive command path, pre-compensating the contouring error by modifying the command pathTo obtain the pre-compensation value with better accuracy, this paper proposes the use of a back propagationFurthermore, by using the extracted function, the contouring error can be easily pre-compensated.

Keywords： contouring error     pre-compensation     motion control system     back propagation (BP) neural network    

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Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 411-428 doi: 10.1007/s11709-023-0928-3

Abstract: In this study, ultrahigh-performance fiber-reinforced concrete (UHPFRC) used in a type B70 concrete sleeper is investigated experimentally and parametrically. The main parameters investigated are the steel fiber volume fractions (0%, 0.5%, 1%, and 1.5%). Under European standards, 35 UHPFRC sleepers are subjected to static bending tests at the center and rail seat sections, and the screw on the fastening system is pulled out. The first cracking load, failure load, failure mode, crack propagation, load–deflection curve, load–crack width, and failure load from these tests are measured and compared with those of a control sleeper manufactured using normal concrete C50. The accuracy of the parametric study is verified experimentally. Subsequently, the results of the study are applied to UHPFRC sleepers with different concrete volumes to investigate the effects of the properties of UHPFRC on their performance. Experimental and parametric study results show that the behavior of UHPFRC sleepers improves significantly when the amount of steel fiber in the mix is increased. Sleepers manufactured using UHPFRC with a steel fiber volume fraction of 1% and a concrete volume less than 25% that of standard sleeper B70 can be used under the same loads and requirements, which contributes positively to the cost and surrounding environment.

Keywords： pre-stressed concrete sleeper     ultrahigh performance fiber-reinforced concrete     pull-out test     static    

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Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting

John O’MALLEY, Hakim S. ABDELGADER,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 127-132 doi: 10.1007/s11709-010-0007-4

Abstract: Two-stage (pre-placed aggregate) concrete (TSC) consists of coarse aggregate, which is first deposited

Keywords： grout     pre-placed     concrete     two-stage concrete (TSC)    

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Optimization of denitrifying phosphorus removal in a pre-denitrification anaerobic/anoxic/post-aeration+ nitrification sequence batch reactor (pre-A

Weihua Zhao, Meixiang Wang, Jianwei Li, Yu Huang, Baikun Li, Cong Pan, Xiyao Li, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1084-1

Abstract:

A novel two sludge pre-A2NSBR system was developed.

Keywords： Denitrifying phosphorus removal     C/N ratio     Nitrate recycling     Carbon source type     Biological nutrient removal     Pre-A    

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Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder

Ali Fadhil NASER, Zonglin WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 164-177 doi: 10.1007/s11709-013-0196-8

Abstract: side spans by sticking the steel plates, strengthening the whole bridge structure by using external pre-stressing

Keywords： structural performance     steel plates     external pre-stressing     cracks     grouting method     static    

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Techno-economic comparison of three technologies for pre-combustion CO

Simon Roussanaly, Monika Vitvarova, Rahul Anantharaman, David Berstad, Brede Hagen, Jana Jakobsen, Vaclav Novotny, Geir Skaugen

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 436-452 doi: 10.1007/s11705-019-1870-8

Abstract: This paper compares the techno-economic performances of three technologies for CO capture from a lignite-based IGCC power plant located in the Czech Republic: (1) Physical absorption with a Rectisol-based process; (2) Polymeric CO -selective membrane-based capture; (3) Low-temperature capture. The evaluations show that the IGCC plant with CO capture leads to costs of electricity between 91 and 120 €·MWh , depending on the capture technology employed, compared to 65 €·MWh for the power plant without capture. This results in CO avoidance costs ranging from 42 to 84 €· , mainly linked to the losses in net power output. From both energy and cost points of view, the low-temperature and Rectisol based CO capture processes are the most efficient capture technologies. Furthermore, partial CO capture appears as a good mean to ensure early implementation due to the limited increase in CO avoidance cost when considering partial capture. To go beyond the two specific CO -selective membranes considered, a cost/membrane property map for CO -selective membranes was developed. This map emphasise the need to develop high performance membrane to compete with solvent technology. Finally, the cost of the whole CCS chain was estimated at 54 €· once pipeline transport and storage are taken into consideration.

Keywords： carbon capture and storage (CCS)     techno-economic comparison     pre-combustion capture     physical solvent     low-temperature    

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Title Author Date Type Operation

Sonication and grinding pre-treatments on

Kit Wayne Chew, Pau Loke Show, Yee Jiun Yap, Joon Ching Juan, Siew Moi Phang, Tau Chuan Ling, Jo-Shu Chang

Journal Article

Towards Cr(VI)-free anodization of aluminum alloys for aerospace adhesive bonding applications: A review

Shoshan T. Abrahami, John M. M. de Kok, Herman Terryn, Johannes M. C. Mol

Journal Article

Testing development of different surface treatments on pervious concrete

Mina YEKKALAR,Liv HASELBACH,Quinn LANGFITT

Journal Article

Evaluation of activated sludge properties’ changes in industrial-wastewater pre-treatment: role of residual

Journal Article

The unregulated commercialization of stem cell treatments: a global perspective

Douglas Sipp

Journal Article

Impact of diabetes and its treatments on skeletal diseases

Wenbo Yan, Xin Li

Journal Article

assimilable organic carbon (AOC) levels in MBR effluents followed by coagulation, ozonation and combined treatments

Xiaojie Shi, Zhuo Chen, Yun Lu, Qi Shi, Yinhu Wu, Hong-Ying Hu

Journal Article

Cytokine storm and translating IL-6 biology into effective treatments for COVID-19

Journal Article

Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Journal Article

A pre-compensation method of the systematic contouring error for repetitive command paths

D. L. ZHANG,Y. H. CHEN,Y. P. CHEN

Journal Article

Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Journal Article

Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting

John O’MALLEY, Hakim S. ABDELGADER,

Journal Article

Optimization of denitrifying phosphorus removal in a pre-denitrification anaerobic/anoxic/post-aeration+ nitrification sequence batch reactor (pre-A

Weihua Zhao, Meixiang Wang, Jianwei Li, Yu Huang, Baikun Li, Cong Pan, Xiyao Li, Yongzhen Peng

Journal Article

Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder

Ali Fadhil NASER, Zonglin WANG

Journal Article

Techno-economic comparison of three technologies for pre-combustion CO

Simon Roussanaly, Monika Vitvarova, Rahul Anantharaman, David Berstad, Brede Hagen, Jana Jakobsen, Vaclav Novotny, Geir Skaugen

Journal Article