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Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1338-1349 doi: 10.1007/s17009-019-0558-2

Abstract: An attempt has been made to scrutinize the properties of HFRC with the main concentration being on energyabsorption characteristics of concrete and the efficacy of fiber hybridization in producing synergy.

Keywords： hybrid fiber-reinforced concrete     synergy     toughness     steel fibers     polypropylene fibers    

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Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

K. S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 282-291 doi: 10.1007/s11709-014-0269-3

Abstract: This paper experimentally investigates the energy absorption potential of two types of concrete floorsTo estimate the extent to which crushing of floor slab materials would help absorb energy, a series ofThe second part of the paper presents the experimental results and establishes the energy absorptionwere used to derive a “work index” value that relates the pulverized particle size distributions to energyThe work index values of concrete-secondary reinforcement systems can be used to assess the energy dissipation

Keywords： concrete floors     structural low-density concrete     shrinkage and temperature reinforcements     energy absorption    

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Compressive behavior and energy absorption of polymeric lattice structures made by additive manufacturing

Sheng WANG, Jun WANG, Yingjie XU, Weihong ZHANG, Jihong ZHU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 319-327 doi: 10.1007/s11465-019-0549-7

Abstract: work, by combining experimental and numerical methods, we investigate the compressive behavior and energyabsorption of lattices made through the stereolithography apparatus process.In addition, uniform lattices show better energy absorption capabilities at small compression distances, while graded lattices absorb more energy at large compression distances.

Keywords： lattice structure     polymer     compressive behavior     additive manufacturing     simulation    

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Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 247-251 doi: 10.1007/s11705-018-1710-2

Abstract: Nanostructured metal surfaces have been known to exhibit properties that deviate from that of the bulk material. By simply modifying the texture of a metal surface, various unique optical properties can be observed. In this paper, we present a simple two step electrochemical process combining electrodeposition and anodization to generate black gold surfaces. This process is simple, versatile and up-scalable for the production of large surfaces. The black gold films have remarkable optical behavior as they absorb more than 93% of incident light over the entire visible spectrum and also exhibit no specular reflectance. A careful analysis by scanning electron microscopy reveals that these unique optical properties are due to their randomly rough surface, as they consist in a forest of dendritic microstructures with a nanoscale roughness. This new type of black films can be fabricated to a large variety of substrates, turning them to super absorbers with potential applications in photovoltaic solar cells or highly sensitive detectors and so on.

Keywords： nanostructuration     light absorption     coating     gold     electrodeposition     anodization    

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Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 169-177 doi: 10.1007/s11708-018-0527-5

Abstract: The collector efficiency of a direct absorption solar collector (DASC) is very sensitive to optical propertiesof the working fluid, such as absorption and scattering coefficients.metal, however, the scattering cross-section of metallic nanoparticles could be comparable to their absorptionperformance if the scattering coefficient of nanofluid is carefully engineered depending on its value of the absorption

Keywords： direct absorption solar collector     plasmonic nanofluid     light scattering    

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Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 185-192 doi: 10.1007/s11708-017-0452-z

Abstract: Solar absorption-subcooled compression hybrid refrigeration system is a new type of efficient and economicalBesides, the energy saving fraction also increases from 5.31% to 6.02%.The average COP of the absorption subsystem is improved from 0.366 to 0.407.Moreover, the working time fraction of the absorption subsystem decreases from 80% to 71.7%.The energy saving fraction falls from 5.67% to 5.08%.

Keywords： solar     absorption-subcooled     compression hybrid     dynamic simulation     performance analysis    

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Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 368-372 doi: 10.1007/s11705-008-0067-3

Abstract: The influence of the properties of solid particles in slurry on the absorption of CO in the slurry wasThe absorption experiments were carried out in three different slurries consisting of water, cyclohexaneThe experimental results show that the active carbon particles could enhance the absorption rate of gaseousHowever, it was observed that the active alumina and silica gel particles could enhance the absorptionThese phenomena indicate that the solid particles, which could enhance the gaseous CO absorption rate

Keywords： constant     influence     soybean     solvent     concentration    

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Improving retrieval precision of NO

Jinpeng YANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 92-96 doi: 10.1007/s11465-009-0001-5

Abstract: The NO density error retrieved by the traditional method of differential optical absorption spectroscopy

Keywords： absorption structure     low-frequency structure     absorption cross-section     NO2 density    

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optimization of 1,3-dimethylimidazolylium dimethylphosphate-water binary mixture for a single effect absorption

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 521-535 doi: 10.1007/s11708-021-0720-9

Abstract: The energy and exergy analyses of the absorption refrigeration system (ARS) using H O-[mmim][DMP] mixture

Keywords： ionic liquid driven absorption cycle     H2O-[mmim][DMP]     coefficient of performance (COP)     exergy    

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A district heating system based on absorption heat exchange with CHP systems

Lin FU, Yan LI, Yi JIANG, Shigang ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 77-83 doi: 10.1007/s11708-010-0022-0

Abstract: In order to decrease the energy consumption of large-scale district heating systems with cogeneration, a district heating system is presented in this paper based on absorption heat exchange in the cogenerationsystem named Co-ah cycle, which means that the cogeneration system is based on absorption heat exchangerecovering the exhausted heat from the condensers, the capacity of the district heating system and the energyTherefore, high energy and economic efficiency can be obtained.

Keywords： cogeneration     district heating     absorption heat exchange     Co-ah cycle    

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cattering-absorbing method for the detection of 16.7 MeV high-energy pulsed gamma

Tan Xinjian,Ouyang Xiaoping,Wang Qunshu

Strategic Study of CAE 2009, Volume 11, Issue 8,   Pages 48-51

Abstract:

This paper proposes a new method of diagnosing 16.7 MeV high-energy pulsedThe sensitivity of 16.7 MeV high-energy gamma ranges from 10-21 to 10-16 C·

Keywords： high-energy gamma     Cherenkov detector     scattering absorption method    

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Improved rate-based modeling of carbon dioxide absorption with aqueous monoethanolamine solution

Stefania MOIOLI, Laura A. PELLEGRINI, Simone GAMBA, Ben LI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 123-131 doi: 10.1007/s11705-014-1415-0

Abstract: and simulation of a post-combustion carbon dioxide capture in a coal-fired power plant by chemical absorption

Keywords： Absorption     carbon dioxide capture     rate-based model     monoethanolamine scrubbing    

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Design of efficient Pt-based electrocatalysts through characterization by X-ray absorption spectroscopy

Nebojsa S. MARINKOVIC, Kotaro SASAKI, Radoslav R. ADZIC

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 236-244 doi: 10.1007/s11708-017-0487-1

Abstract: method is described to determine the internal structure of electrocatalyst nanoparticles by X-ray absorptionspectroscopic technique typically utilizing synchrotron radiation as the source measures changes in the X-ray absorptioncoefficient as a function of energy.

Keywords： X-ray absorption spectroscopy     EXAFS     XANES     nanocatalysts     core shell    

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Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 503-509 doi: 10.1007/s11708-017-0515-1

Abstract: The present paper aims at exploring a hybrid absorption-compression heat pump (HAC-HP) to upgrade andone more solution pump, compared to the conventional HAC-HP system, to allow flexible utilization of energyresults show that more ammonia-water vapor flowing through the compressor leads to a substantial higher energytemperature lift increases with the increasing system recirculation flow ratio, however, the system energyrange of 9.8°C–27.7 °C, 14.9°C–44.1 °C, 24.4°C–64.1°C, and 40.7°C–85.7°C, respectively, and the system energy

Keywords： absorption compression     high temperature heat pump     efficiency     industrial waste heat     thermodynamic analysis    

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Experimental study on the temperature dependence of ultraviolet absorption cross-sections of sulfur dioxide

ZHANG Shiliang, ZHOU Jie, CHEN Xiaohu

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 183-186 doi: 10.1007/s11708-008-0025-2

Abstract: The discrete absorption cross-section is directly correlated with the number of quantum excited fromThe absorption cross-sections at the peaks of discrete bands decreased linearly with the increase ofThe absorption cross-section peaks decreased linearly when the temperature increased from 298 to 415Another distinctive feature of sulfur dioxide absorption spectra in the above two spectral regions wasRed and blue shifts were not found at the absorption peak positions.
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Title Author Date Type Operation

Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Journal Article

Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

K. S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Journal Article

Compressive behavior and energy absorption of polymeric lattice structures made by additive manufacturing

Sheng WANG, Jun WANG, Yingjie XU, Weihong ZHANG, Jihong ZHU

Journal Article

Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Journal Article

Effect of light scattering on the performance of a direct absorption solar collector

Kwang Hyun WON, Bong Jae LEE

Journal Article

Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Journal Article

Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Journal Article

Improving retrieval precision of NO

Jinpeng YANG

Journal Article

optimization of 1,3-dimethylimidazolylium dimethylphosphate-water binary mixture for a single effect absorption

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Journal Article

A district heating system based on absorption heat exchange with CHP systems

Lin FU, Yan LI, Yi JIANG, Shigang ZHANG,

Journal Article

cattering-absorbing method for the detection of 16.7 MeV high-energy pulsed gamma

Tan Xinjian,Ouyang Xiaoping,Wang Qunshu

Journal Article

Improved rate-based modeling of carbon dioxide absorption with aqueous monoethanolamine solution

Stefania MOIOLI, Laura A. PELLEGRINI, Simone GAMBA, Ben LI

Journal Article

Design of efficient Pt-based electrocatalysts through characterization by X-ray absorption spectroscopy

Nebojsa S. MARINKOVIC, Kotaro SASAKI, Radoslav R. ADZIC

Journal Article

Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

Journal Article

Experimental study on the temperature dependence of ultraviolet absorption cross-sections of sulfur dioxide

ZHANG Shiliang, ZHOU Jie, CHEN Xiaohu

Journal Article