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Application of gamma-ray attenuation technology in density measurement of a slurry reactor

Jian XU, Weisheng WEI, Kai ZHANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 486-490 doi: 10.1007/s11705-010-0509-6

Abstract: Axial density profile of the gas-liquid-solid mixture in a slurry bubble column was measured by gamma-rayin the column decreases with the increase of column height, which indicates that the measurement by gamma-ray

Keywords： slurry reactor     axial density distribution     gamma-ray attenuation technology    

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Detectors for pulsed neutron and gamma-ray measurement

Ouyang Xiaoping

Strategic Study of CAE 2009, Volume 11, Issue 5,   Pages 44-53

Abstract: Main parameters of detection systems for measuring time spectrum and intensity of mixed pulsed neutron/gammadetection sensitivity, time response, energy response, linear current and discrimination of neutron to gammatechnical principles have to be established in accordance with the basic interaction principles of neutron/gamma

Keywords： mixed neutron gamma-ray fields     pulsed radiation detection     detecting system     designing techniques    

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A study on quality evaluation for bituminous mixture using X-ray CT

Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 89-101 doi: 10.1007/s11709-013-0197-7

Abstract: The objective of this paper is to propose a new quality evaluation method for asphalt concrete mixtureIn the mixture examination, histograms of CT-value and four segmentation images made from CT images expressedthe material and mixture characterization such as particle size and the difference in bitumen contentand mixture type visibly and the bitumen content varies with the threshold values.

Keywords： asphalt concrete mixture     aggregate     bitumen     bitumen content     quality evaluation     X-ray CT    

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Secrecy performance analysis of single-input multiple-output generalized- Article

Hong-jiang LEI,Imran Shafique ANSARI,Chao GAO,Yong-cai GUO,Gao-feng PAN,Khalid A. QARAQE

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 10,   Pages 1074-1084 doi: 10.1631/FITEE.1601070

Abstract: SIMO systems are derived via two different methods, in which G distribution is approximated by the Gammaand mixture Gamma distributions, respectively.

Keywords： Physical-layer security     Generalized-K fading     Average secrecy capacity     Secrecy outage probability     MixtureGamma distribution    

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Protective effects of nicotine on gamma-aminobutyric acid neurons and dopaminergic neurons in mice with

Lei FU MD , Dezheng GONG BM , Yan PENG , Dongmei WANG BM , Hong XU , Yue LI MD , Dengqin YU BS , Yanhui FENG MD , Shengming YIN PhD , Jin GONG , Yiping SUN PhD ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 330-335 doi: 10.1007/s11684-009-0051-4

Abstract: This study aimed to investigate the protective effect of nicotine on dopaminergic neurons and its mechanisms in mice with Parkinson disease (PD) induced by 1-methyl-4-phenyl-1,2,3, 6-tetrahydropyridine (MPTP). C57BL/6J mice were injected with MPTP for 8 days to establish a PD model. Nicotine was given for 10 days in the nicotine therapeutic group. Animals were examined behaviorally with the pole test and traction test. Tyrosine hydroxylase (TH) and γ-aminobutyric acid (GABA) were determined by using the immunocytochemistry (ICC) method. The ultrastructural changes of the caudate nucleus (CN) were observed under electron microscopy. The results showed that pretreatment with nicotine could improve the dyskinesia of PD mice markedly. Simultaneously, TH-positive ( < 0.01) neurons and GABA-positive ( < 0.05) neurons in the nicotine therapeutic group were significantly more than those in the model group. The ultrastructural injury of the nicotine therapeutic group was also ameliorated. Nicotine has protective effects on the γ-aminobutyric acid neurons and dopaminergic neurons in the MPTP-treated mice.

Keywords： Parkinson disease     nicotine     dopaminergic neuron     gamma-aminobutyric acid neuron    

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Fatigue of asphalt binder, mastic and mixture at low temperature

Dong WANG, Linbing WANG, Guoqing ZHOU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 166-175 doi: 10.1007/s11709-012-0157-7

Abstract: experiment method is developed to evaluate the performances of asphalt binder, mastic and fine aggregates mixtureThe micro-structure analysis of mastic and mixture indicates that the fatigue resistance is closely relatedspecimen. 3D digital specimens are developed to model the fatigue of the asphalt binder, mastic and mixture

Keywords： fatigue     asphalt mixture     asphalt binder     mastic     finite element method (FEM)     X-ray tomography    

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Use of gamma-irradiation pretreatment for enhancement of anaerobic digestibility of sewage sludge

YUAN Shoujun, ZHENG Zheng, YU Xin, ZHAO Yongfu, MU Yanyan

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2,   Pages 247-250 doi: 10.1007/s11783-008-0041-9

Abstract: The effects of ?-irradiation pretreatment on anaerobic digestibility of sewage sludge was investigated in this paper. Parameters like solid components, soluble components, and biogas production of anaerobic digestion experiment for sewage sludge were measured. The values of these parameters were compared before and after ?-irradiation pretreatment. Total solid (TS), volatile solid (VS), suspended solid (SS), volatile suspended solid (VSS), and average floc size of samples decreased after ?-irradiation treatment. Besides, floc size distribution of sewage sludge shifted from 80–100 ?m to 0–40 ?m after ?-irradiation treatment at the doses from 0 to 30 kGy, which indicated the disintegration of sewage sludge. Moreover, microbe cells of sewage sludge were ruptured by ?-irradiation treatment, which resulted in the release of cytoplasm and increase of soluble chemical oxygen demand (SCOD). Both sludge disintegration and microbe cells rupture enhanced the subsequent anaerobic digestion process, which was demonstrated by the increase of accumulated biogas production. Compared with digesters fed with none irradiated sludge, the accumulated biogas production increased 44, 98, and 178 mL for digesters fed sludge irradiated at 2.48, 6.51, and 11.24 kGy, respectively. The results indicated that ?-irradiation pretreatment could effectively enhance anaerobic digestibility of sewage sludge, and correspondingly, could accelerate hydrolysis process, shorten sludge retention time of sludge anaerobic digestion process.

Keywords： anaerobic digestibility     soluble chemical     cytoplasm     digestion process     soluble    

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Impacts of climate change on optimal mixture design of blended concrete considering carbonation and chloride

Xiao-Yong WANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 473-486 doi: 10.1007/s11709-020-0608-5

Abstract: Many studies on the mixture design of fly ash and slag ternary blended concrete have been conducted.This study presents a procedure for the optimal mixture design of ternary blended concrete consideringFirst, the costs of CO emissions and material are calculated based on the concrete mixture and unitA genetic algorithm is used to find the optimal mixture considering various constraints.Third, illustrative examples are shown for mixture design of ternary blended concrete.

Keywords： ternary blended concrete     climate change     optimal mixture design     carbonation     chloride ingress    

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Simulation of abrasive flow machining process for 2D and 3D mixture models

Rupalika DASH,Kalipada MAITY

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 424-432 doi: 10.1007/s11465-015-0366-6

Abstract: Two phases were considered for the flow analysis, and multiphase mixture model was taken into account

Keywords： abrasive flow machining (AFM)     computational fluid dynamics (CFD) modeling     mixture model    

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Simulation and analysis of grinding wheel based on Gaussian mixture model

Yulun CHI, Haolin LI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 427-432 doi: 10.1007/s11465-012-0350-3

Abstract: The Gaussian mixture model (GMM) is used to transform the measured non-Gaussian field to Gaussian fields

Keywords： grinding wheel     3D topographies measurement     Gaussian mixture model     simulation    

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Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil

Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 468-473 doi: 10.1007/s11705-009-0257-7

Abstract: This paper presents our study on removal of carbon dioxide (CO) greenhouse gas emissions by using the mixture

Keywords： electron microscopy     product     physical adsorption     capacity     spectroscopy    

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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: style="text-align: justify;">This paper proposes a new method of diagnosing 16.7 MeV high-energy pulsed gammaThe 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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Potassium carbonate-based ternary transition temperature mixture (deep eutectic analogues) for CO absorption

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1500-9

Abstract:

•Addition of hindered amine increased thermal stability and viscosity of TTTM.

Keywords： Ternary transition-temperature mixture     FT-IR and thermal stability analysis     Viscosity and correlation    

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Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement

Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 947-961 doi: 10.1007/s11709-022-0836-y

Abstract: polyurethane binder determines the limited time window for mixing and construction of polyurethane-bonded mixture

Keywords： polyurethane-bonded mixture     mix design optimization     airport pavement     thin overlay     gray relational    

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A study on fatigue damage of asphalt mixture under different compaction using 3D-microstructural characteristics

Jing HU, Pengfei LIU, Bernhard STEINAUER

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 329-337 doi: 10.1007/s11709-017-0407-9

Abstract: The aim of this paper is investigating the microstructural characteristics of asphalt mixture under differentIn order to achieve this aim, a test track was built to provide asphalt mixture specimens and X-ray computedaggregate particles on the morphology of air-voids can be evaluated, finally, fatigue properties of asphalt mixturesuffering the same compaction power, aggregates cause different constitutions of air-voids in asphalt mixture

Keywords： asphalt mixture     microstructure     morphology     digital image processing     fatigue damage    

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Title Author Date Type Operation

Application of gamma-ray attenuation technology in density measurement of a slurry reactor

Jian XU, Weisheng WEI, Kai ZHANG

Journal Article

Detectors for pulsed neutron and gamma-ray measurement

Ouyang Xiaoping

Journal Article

A study on quality evaluation for bituminous mixture using X-ray CT

Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI

Journal Article

Secrecy performance analysis of single-input multiple-output generalized-

Hong-jiang LEI,Imran Shafique ANSARI,Chao GAO,Yong-cai GUO,Gao-feng PAN,Khalid A. QARAQE

Journal Article

Protective effects of nicotine on gamma-aminobutyric acid neurons and dopaminergic neurons in mice with

Lei FU MD , Dezheng GONG BM , Yan PENG , Dongmei WANG BM , Hong XU , Yue LI MD , Dengqin YU BS , Yanhui FENG MD , Shengming YIN PhD , Jin GONG , Yiping SUN PhD ,

Journal Article

Fatigue of asphalt binder, mastic and mixture at low temperature

Dong WANG, Linbing WANG, Guoqing ZHOU

Journal Article

Use of gamma-irradiation pretreatment for enhancement of anaerobic digestibility of sewage sludge

YUAN Shoujun, ZHENG Zheng, YU Xin, ZHAO Yongfu, MU Yanyan

Journal Article

Impacts of climate change on optimal mixture design of blended concrete considering carbonation and chloride

Xiao-Yong WANG

Journal Article

Simulation of abrasive flow machining process for 2D and 3D mixture models

Rupalika DASH,Kalipada MAITY

Journal Article

Simulation and analysis of grinding wheel based on Gaussian mixture model

Yulun CHI, Haolin LI

Journal Article

Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil

Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,

Journal Article

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

Tan Xinjian,Ouyang Xiaoping,Wang Qunshu

Journal Article

Potassium carbonate-based ternary transition temperature mixture (deep eutectic analogues) for CO absorption

Journal Article

Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement

Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO

Journal Article

A study on fatigue damage of asphalt mixture under different compaction using 3D-microstructural characteristics

Jing HU, Pengfei LIU, Bernhard STEINAUER

Journal Article