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Journal Article 33

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Fabrication of cellulose aerogel from wheat straw with strong absorptive capacity

Jian LI,Caichao WAN,Yun LU,Qingfeng SUN

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 1,   Pages 46-52 doi: 10.15302/J-FASE-2014004

Abstract: With further combined regeneration process and freeze-drying, the cellulose aerogel was successfully

Keywords： cellulose aerogel     absorptive capacity     waste wheat straw     freeze-drying    

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Comparison study on strategies to prepare nanocrystalline Li

Qiang XIAO, Xiaodan TANG, Yefeng LIU, Yijun ZHONG, Weidong ZHU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 297-302 doi: 10.1007/s11705-013-1346-1

Abstract: solid-state and liquid-phase methods, citrate route, and starch-assisted sol-gel method combined with freeze-dryinghas poor reproducibility and scalability, whereas the starch-assisted sol-gel method combined with freeze-drying

Keywords： >2 capture     Li2ZrO3     K-doped Li2ZrO3     citrate     starch     freeze-drying    

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Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 781-792 doi: 10.1007/s11709-021-0733-9

Abstract: construction-induced damage can be more significant than those from the service environment of LCC, such as freeze–thaw

Keywords： lightweight cellular concrete     construction-induced damage     freeze-thaw action     microstructure     degradation    

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emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete under freeze–thaw

Frontiers of Structural and Civil Engineering   Pages 1341-1356 doi: 10.1007/s11709-023-0988-4

Abstract: This study empirically investigated the influence of freeze–thaw cycling on the dynamic splitting tensilemm/s) on specimens with four steel fiber contents (0%, 0.6%, 1.2%, and 1.8%) subjected to 0 and 50 freeze–thawThe results quantified using the freeze–thaw damage factor defined in this paper indicate that the degreeof damage to SFRC caused by freeze–thaw cycling was aggravated with increasing loading rate but mitigatedFreeze–thaw action had little effect on the crack types observed during the early and middle stages of

Keywords： steel fiber reinforced concrete     freeze–thaw cycling     Brazilian disc splitting test     acoustic emission    

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Freezing-Extraction/Vacuum-Drying Method for Robust and Fatigue-Resistant Polyimide Fibrous Aerogels Article

Kaiqing Yao, Chonghu Song, Hong Fang, Feng Wang, Lian Chen, Shaohua Jiang, Guojun Zha, Haoqing Hou

Engineering 2023, Volume 21, Issue 2,   Pages 152-161 doi: 10.1016/j.eng.2021.08.024

Abstract: In this work, a freeze-extraction method combined with normal vacuum drying (VD), using short electrospunwas developed to prepare high-performance PI fibrous aerogels (PIFAs) without the need for a special drying

Keywords： Polyimide aerogel     Freeze-extraction     Vacuum-drying     Mechanical property     Thermal insulation     Fire retardancy    

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Experimental investigation on freeze−thaw durability of polymer concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1038-1046 doi: 10.1007/s11709-021-0748-2

Abstract: Freeze–thaw is one such test that indicates the ability of concrete to last a long time without a significantIn this study, the freeze–thaw resistance of polymer concrete containing different polymer contents waselasticity, and residual compressive strength were determined for all types of concretes subjected to freeze–thawthat polymer concrete (PC) specimens prepared with higher dosages of polymer contents possessed better freeze–thaw

Keywords： durability test     freeze-thaw resistance     polymer concrete     residual compressive strength     ASTM C666-15    

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Investigation on the freeze-thaw damage to the jointed plain concrete pavement under different climate

Shuaicheng GUO, Qingli DAI, Jacob HILLER

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 227-238 doi: 10.1007/s11709-017-0426-6

Abstract: Freeze-thaw damage is one of the main threats to the long time performance of the concrete pavement inBased on the Long-Term Pavement Performance (LTPP) data base, the freeze-thaw damage generated by fourdifferent kinds of climate conditions are considered in this project: wet-freeze, wet-non freeze, dry-freezeand dry-non freeze.These two parameters both decrease with service time under freeze condition.

Keywords： LTPP     elastic modulus     k-value     IRI     MEPDG    

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Stress-strain relationship of concrete in freeze-thaw environment

ZOU Chaoying, ZHAO Juan, LIANG Feng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 184-188 doi: 10.1007/s11709-008-0029-3

Abstract: Adopting the ASTM C666 quick freeze-thaw method, freeze-thaw tests with the number of freeze-thaw cycleswere observed by means of scanning electron microscopy (SEM) in order to detect damages caused by the freeze-thawfrozen-thawed specimens were tested on monotonic axial load; stress-strain testing curves after the freeze-thawThe testing results show that with the increasing time of freeze-thaw cycles, both the internal micro-structuresreference for further research on the behavior and the calculation model of concrete structures in a freeze-thaw

Keywords： stress-strain theoretical     freeze-thaw     capacity     reference     eighteen concrete    

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Influence of freeze–thaw damage gradient on stress–strain relationship of stressed concrete

Frontiers of Structural and Civil Engineering   Pages 1326-1340 doi: 10.1007/s11709-023-0014-x

Abstract: Influence of freeze–thaw damage gradient on stress–strain relationship of stressed concrete

Keywords： strain relationship concrete    

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Soybean drying characteristics in microwave rotary dryer with forced convection

Ruifang WANG, Zhanyong LI, Yanhua LI, Jingsheng YE

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 289-292 doi: 10.1007/s11705-009-0022-y

Abstract: A new hybrid drying technique by combining microwave and forced convection drying within a rotary drum, i.e., microwave rotary drying, was developed with the purpose to improve the uniformity of microwavedrying.study the effects of drum rotating speed, ventilation flow rate, and specific microwave power on the dryingfound that, with rotation, the cracking ratio can be lowered but without distinct improvement in the drying

Keywords： cracking     microwave     rotary drying     soybean    

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Biosorption of Cr(III) from aqueous solution by freeze-dried activated sludge: Equilibrium, kinetic and

Qian YAO, Hua ZHANG, Jun WU, Liming SHAO, Pinjing HE,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 286-294 doi: 10.1007/s11783-010-0025-4

Abstract: Batch biosorption experiments were conducted to remove Cr(III) from aqueous solutions using activated sludge from a sewage treatment plant. An investigation was conducted on the effects of the initial pH, contact time, temperature, and initial Cr(III) concentration in the biosorption process. The results revealed that the activated sludge exhibited the highest Cr(III) uptake capacity (120 mg·g) at 45°C, initial pH of 4, and initial Cr(III) concentration of 100 mg·L. The biosorption results obtained at various temperatures showed that the biosorption pattern accurately followed the Langmuir model. The calculated thermodynamic parameters, Δ (−0.8– −4.58 kJ·mol), Δ (15.6–44.4 kJ·mol), and Δ (0.06–0.15 kJ·mol·K) clearly indicated that the biosorption process was feasible, spontaneous, endothermic, and physical. The pseudo first-order and second-order kinetic models were adopted to describe the experimental data, which revealed that the Cr(III) biosorption process conformed to the second-order rate expression and the biosorption rate constants decreased with increasing Cr(III) concentration. The analysis of the values of biosorption activation energy ( = −7 kJ·mol) and the intra-particle diffusion model demonstrated that Cr(III) biosorption was film-diffusion-controlled.

Keywords： activated sludge     biosorption     chromium     film diffusion     kinetics     thermodynamics    

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A solar assisted heat pump drying system for grain in-store drying

Haifeng LI, Yanjun DAI, Jianguo DAI, Xibo WANG, Lei WEI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 386-391 doi: 10.1007/s11708-010-0003-3

Abstract: For grain in-store drying, a solar assisted drying process has been developed, which consists of a setA solar-assisted heat pump drying system has been designed and manufactured for a practical granary,

Keywords： solar energy     heat pump     airflow     in-store drying    

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Modeling temperature and moisture dependent emissions of carbon dioxide and methane from drying dairy

Enzhu HU, Pakorn SUTITARNNONTR, Markus TULLER, Scott B. JONES

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 280-286 doi: 10.15302/J-FASE-2018215

Abstract: model the effects of temperature and moisture content on emissions of CO and CH during the ambient drying

Keywords： carbon dioxide     dairy manure     methane     moisture     temperature    

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Intracellular trehalose improves the survival of human red blood cells by freeze-drying

HE Hui, LIU Baolin, HUA Zezhao, LI Chuan, WU Zhengzheng

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 120-124 doi: 10.1007/s11708-007-0014-x

Abstract: Freeze-drying of human red blood cells has a potential important application for blood transfusion.was to investigate the effects of intracellular trehalose on the survival of red blood cells after freeze-dryingblood cells were incubated in trehalose solutions of various concentrations at 37vH for 7 h following freeze-dryingTrehalose, sodium citrate, and human serum albumin were used as extracellular protective agents for the freeze-dryingThe viability of freeze-dried red blood cells increased with the increment of intracellular trehalose
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Effects of previous drying of sediment on root functional traits and rhizoperformance of emerged macrophytes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1427-1

Abstract:

• Sediment desiccation alters morphological characteristics of aquatic sediment.

Keywords： Fibrous-root macrophytes     Thick-root macrophytes     Nutrients removal     Wet sediment     Dried-rewetted sediment    

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Title Author Date Type Operation

Fabrication of cellulose aerogel from wheat straw with strong absorptive capacity

Jian LI,Caichao WAN,Yun LU,Qingfeng SUN

Journal Article

Comparison study on strategies to prepare nanocrystalline Li

Qiang XIAO, Xiaodan TANG, Yefeng LIU, Yijun ZHONG, Weidong ZHU

Journal Article

Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete

Journal Article

emissions evaluation of the dynamic splitting tensile properties of steel fiber reinforced concrete under freeze–thaw

Journal Article

Freezing-Extraction/Vacuum-Drying Method for Robust and Fatigue-Resistant Polyimide Fibrous Aerogels

Kaiqing Yao, Chonghu Song, Hong Fang, Feng Wang, Lian Chen, Shaohua Jiang, Guojun Zha, Haoqing Hou

Journal Article

Experimental investigation on freeze−thaw durability of polymer concrete

Journal Article

Investigation on the freeze-thaw damage to the jointed plain concrete pavement under different climate

Shuaicheng GUO, Qingli DAI, Jacob HILLER

Journal Article

Stress-strain relationship of concrete in freeze-thaw environment

ZOU Chaoying, ZHAO Juan, LIANG Feng

Journal Article

Influence of freeze–thaw damage gradient on stress–strain relationship of stressed concrete

Journal Article

Soybean drying characteristics in microwave rotary dryer with forced convection

Ruifang WANG, Zhanyong LI, Yanhua LI, Jingsheng YE

Journal Article

Biosorption of Cr(III) from aqueous solution by freeze-dried activated sludge: Equilibrium, kinetic and

Qian YAO, Hua ZHANG, Jun WU, Liming SHAO, Pinjing HE,

Journal Article

A solar assisted heat pump drying system for grain in-store drying

Haifeng LI, Yanjun DAI, Jianguo DAI, Xibo WANG, Lei WEI,

Journal Article

Modeling temperature and moisture dependent emissions of carbon dioxide and methane from drying dairy

Enzhu HU, Pakorn SUTITARNNONTR, Markus TULLER, Scott B. JONES

Journal Article

Intracellular trehalose improves the survival of human red blood cells by freeze-drying

HE Hui, LIU Baolin, HUA Zezhao, LI Chuan, WU Zhengzheng

Journal Article

Effects of previous drying of sediment on root functional traits and rhizoperformance of emerged macrophytes

Journal Article