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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: justify;">Detection system makes the core equipment for collecting feature information of radiation fieldsMain parameters of detection systems for measuring time spectrum and intensity of mixed pulsed neutron/gamma radiation fields include detection sensitivity, time response, energy response, linear currentand discrimination of neutron to gamma rays, etc./gamma rays with materials.

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

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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-rayIt was found that the response frequency and the ray intensity should be as high as possible to improvecoefficient depended on not the object’s thickness but the location where the object was placed between the 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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Development of Pulsed Radiation Detection Technology

Ouyang Xiaoping

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 44-55

Abstract: The diagnostic equipments can measure intense and rapidly changing neutron and gamma rays fluxes in highlymixed neutron-gamma radiation fields.properties, such as selective radiation sensitivities, a wide dynamic range, a large linearity, a good neutronto gamma ray discrimination, a very fast time response, reliability, etc.

Keywords： fission reaction     fusion reaction     pulse radiation detection     detecting system     neutron detection     gamma-ray    

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Quality Monitoring of Porous Zein Scaffolds: A Novel Biomaterial

Yue Zhang, Wei-Ying Li, Run Lan, Jin-Ye Wang

Engineering 2017, Volume 3, Issue 1,   Pages 130-135 doi: 10.1016/J.ENG.2017.01.001

Abstract: We also compared the changes in SDS-PAGE patterns when irradiated with different doses of gamma radiationWe found that polymerization or breakage did not occur on peptide chains of zein during gamma-ray (γ-ray) sterilization in the range of 20–30 kGy, which suggested that γ-ray sterilization

Keywords： Zein     Amino acid analysis     SDS-PAGE     Gamma-ray sterilization     MTT assay     CCK-8 assay    

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Preliminary characterization of radiation fields of IHNI-1 for BNCT

Chen Jun,Li Chunjuan,Song Mingzhe,Li Wei,Yao Shunhe,Diao Lijun,Yao Yanling,Zhang Zizhu,Gao Jijin,Zhang Yifan

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 106-112

Abstract:

The characteristic parameters of the neutron radiation fields producedby an in-hospital neutron irradiatior for boron neutron capture therapy(BNCT), such as neutron energyspectra, neutron flux density and neutron absorbed dose rate and their spatial distributions in freeimprove the energy resolution in epithermal energy range and the ability to discriminate different neutronThe preliminary results show that the neutron flux densities of the irradiators achieve the expected

Keywords： in-hospital neutron irradiatior for BNCT     neutron enengy spectrum     neutron flux density     absorbed doserate of neutron and γ ray    

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Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 114-120 doi: 10.1007/s11709-014-0267-5

Abstract: A particular kind of non-Gaussian random fields with great practical importance is that of translationfields resulting from a simple memory-less transformation of an underlying Gaussian field with knownof existing random field models of heterogeneous two-phase media with emphasis on level-cut random fieldswhich are a special case of translation fields.

Keywords： microstructure     random fields     level sets     shape recovery     two-phase media    

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NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 386-395 doi: 10.15302/J-FASE-2022443

Abstract:

● Excessive application of N fertilizers in orchards and vegetable fields

Keywords： nitrogen fate     nitrogen fertilizer     orchards     vegetable fields    

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Advanced biomass materials: progress in the applications for energy, environmental, and emerging fields

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 795-797 doi: 10.1007/s11705-023-2336-6

Abstract: Advanced biomass materials: progress in the applications for energy, environmental, and emerging fields

Keywords： progress applications energy     fields    

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Engineering Fronts in fields of Energy and Electrical Science and Technologies in the report of

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 5-8 doi: 10.1007/s11708-023-0868-6

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The perturbed magnetic fields caused by mechanical stress

QIN Fei, YAN Dong-mei

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 151-156 doi: 10.1007/s11465-006-0015-1

Abstract: In the framework of the linearized magnetoelastic theory, the perturbed magnetic fields caused by mechanicalGoverning equations and boundary conditions to determine the perturbed fields were derived.The effect of mechanical deformation on the magnetic fields was taken into account by coupling structural
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Optimization design for the epithermal neutron duct of in-hospital neutron irradiator mark 1 reactor

Jiang Xinbiao,Zhu Yangni,Zhao Zhumin,Chen Lixin,Zhou Yongmao

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 33-37

Abstract: text-align: justify;">Optimization design for the moderation layer and reflection layer of the epithermal neutronduct at in-hospital neutron irradiator mark 1(IHNI-1) reactor is carried out by using MCNP in this papercompared with Al materials, and two moderation optimization schemes which can obtain intensive epithermal neutronFinally, based on the moderation layer and reflection layer optimization schemes, the neutron and gammaspace distribution of the epithermal neutron beam at exit of this duct are detailed calculated.

Keywords： IHNI-1 reactor     epithermal neutron beam     neutron flux density    

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Stem cell niches and endogenous electric fields in tissue repair

Li LI, Jianxin JIANG

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 40-44 doi: 10.1007/s11684-011-0108-z

Abstract: involved in the stem cell-based repair process, including stem cell niches and endogenous wound electric fieldsHere we briefly review the role of stem cell niches and endogenous electric fields in tissue repair,and hypothesize that endogenous electric fields become part of stem cell niche in the wound site.

Keywords： stem cell     stem cell niche     electric field     tissue repair    

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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: objective of this paper is to propose a new quality evaluation method for asphalt concrete mixture using X-rayTo achieve this aim, asphalt mixtures should be subjected to the X-ray CT scanning and its characteristicscoarse-graded and porous asphalt mixtures were made; 3) materials and mixtures were subjected to the X-ray

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

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Adsorption of fluoride on clay minerals and their mechanisms using X-ray photoelectron spectroscopy

Junyi DU, Daishe WU, Huayun XIAO, Ping LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 212-226 doi: 10.1007/s11783-010-0255-5

Abstract: times by probing their fluoride superficial layer binding energies and element compositions using X-ray

Keywords： clay mineral     fluoride (F)     adsorption mechanism     X-ray photoelectron spectroscopy (XPS)    

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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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Title Author Date Type Operation

Detectors for pulsed neutron and gamma-ray measurement

Ouyang Xiaoping

Journal Article

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

Jian XU, Weisheng WEI, Kai ZHANG

Journal Article

Development of Pulsed Radiation Detection Technology

Ouyang Xiaoping

Journal Article

Quality Monitoring of Porous Zein Scaffolds: A Novel Biomaterial

Yue Zhang, Wei-Ying Li, Run Lan, Jin-Ye Wang

Journal Article

Preliminary characterization of radiation fields of IHNI-1 for BNCT

Chen Jun,Li Chunjuan,Song Mingzhe,Li Wei,Yao Shunhe,Diao Lijun,Yao Yanling,Zhang Zizhu,Gao Jijin,Zhang Yifan

Journal Article

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Journal Article

NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

Journal Article

Advanced biomass materials: progress in the applications for energy, environmental, and emerging fields

Journal Article

Engineering Fronts in fields of Energy and Electrical Science and Technologies in the report of

Journal Article

The perturbed magnetic fields caused by mechanical stress

QIN Fei, YAN Dong-mei

Journal Article

Optimization design for the epithermal neutron duct of in-hospital neutron irradiator mark 1 reactor

Jiang Xinbiao,Zhu Yangni,Zhao Zhumin,Chen Lixin,Zhou Yongmao

Journal Article

Stem cell niches and endogenous electric fields in tissue repair

Li LI, Jianxin JIANG

Journal Article

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

Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI

Journal Article

Adsorption of fluoride on clay minerals and their mechanisms using X-ray photoelectron spectroscopy

Junyi DU, Daishe WU, Huayun XIAO, Ping LI

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