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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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Optimization and modeling of coagulation-flocculation to remove algae and organic matter from surface water by response surface methodology

Ray, Ajay K Ray, Tianyin Huang, Jiabin Chen

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1159-7

Abstract: Charge neutralization and sweep flocculation were the major mechanisms. Effect of process parameters was investigated. Optimal coagulation conditions were studied by response surface methodology. ANN models presented more robust and accurate prediction than RSM. Seasonal algal blooms of Lake Yangcheng highlight the necessity to develop an effective and optimal water treatment process to enhance the removal of algae and dissolved organic matter (DOM). In the present study, the coagulation performance for the removal of algae, turbidity, dissolved organic carbon (DOC) and ultraviolet absorbance at 254 nm (UV254) was investigated systematically by central composite design (CCD) using response surface methodology (RSM). The regression models were developed to illustrate the relationships between coagulation performance and experimental variables. Analysis of variance (ANOVA) was performed to test the significance of the response surface models. It can be concluded that the major mechanisms of coagulation to remove algae and DOM were charge neutralization and sweep flocculation at a pH range of 4.66–6.34. The optimal coagulation conditions with coagulant dosage of 7.57 mg Al/L, pH of 5.42 and initial algal cell density of 3.83 × 106 cell/mL led to removal of 96.76%, 97.64%, 40.23% and 30.12% in term of cell density, turbidity, DOC and UV254 absorbance, respectively, which were in good agreement with the validation experimental results. A comparison between the modeling results derived through both ANOVA and artificial neural networks (ANN) based on experimental data showed a high correlation coefficient, which indicated that the models were significant and fitted well with experimental results. The results proposed a valuable reference for the treatment of algae-laden surface water in practical application by the optimal coagulation-flocculation process.

Keywords： Algae     Coagulation-flocculation     Response surface methodology     Artificial neural networks    

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Establishing two-stage interaction between fly ash and NaOH by X-ray and infrared analyses

Bhagwanjee JHA,Nevin KOSHY,Devendra Narain SINGH

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 216-221 doi: 10.1007/s11783-014-0630-8

Abstract: explored by several researchers and formation of fly ash zeolites has been confirmed based on the X-ray

Keywords： hydrothermal treatment     alkali activation     fly ash zeolites     X-ray diffraction (XRD) and Fourier transform-infrared    

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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 raycolumn 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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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: A method is described to determine the internal structure of electrocatalyst nanoparticles by X-rayspectroscopic technique typically utilizing synchrotron radiation as the source measures changes in the X-ray

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

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Error analysis of the parameters for non-coaxial grazing X-ray microscope

ZHAO Lingling, HU Jiasheng, LI Xiang

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 323-329 doi: 10.1007/s11465-007-0057-z

Abstract: A non-coaxial grazing X-ray microscope, consisting of four spherical mirrors, is designed for diagnosisA set of non-coaxial grazing X-ray microscopes is manufactured based on the tolerances.

Keywords： non-coaxial     spherical     manufacturing     necessary     diagnosis    

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β-Nickel hydroxide cathode material for nano-suspension redox flow batteries

Yue LI, Cheng HE, Elena V. TIMOFEEVA, Yujia DING, Javier PARRONDO, Carlo SEGRE, Vijay RAMANI

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 401-409 doi: 10.1007/s11708-017-0496-0

Abstract: and morphology of the nanoparticles were characterized by scanning electronic microscopy (SEM) and X-rayThe phase transformations occurring during charge/discharge were investigated using X-ray absorptionspectroscopy to obtain the shift in the oxidation state of Ni (X-ray adsorption near edge structure,XANES) and the distances between Ni and surrounding atoms in charged and discharged states (extended X-ray

Keywords： nano-suspension flow battery     β-Ni(OH)2     scanning electronic microscopy (SEM)     X-ray diffraction(XRD)     X-ray adsorption near edge structure (XANES)     extended X-ray absorption fine structure (EXAFS)    

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analysis of soil failure on defective underground pipe due to cyclic water supply and drainage using X-ray

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 85-100 doi: 10.1007/s11709-012-0159-5

Abstract: The mechanism of cavity generation in the model ground was observed using an X-ray Computed Tomography

Keywords： relative density     grain property     model test     road subsidence     underground pipe     image processing     X-ray CT    

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Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 196-202 doi: 10.1007/s11705-016-1565-3

Abstract: X-ray crystallography is a powerful strategy for 3-D structure determination of macromolecules, such

Keywords： selenium     DNA     RNA     nucleic acid     crystallization    

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mechanical properties of municipal solid waste incineration residues with cement and coal fly ash using X-ray

Toshifumi MUKUNOKI, Ta Thi HOAI, Daisuke FUKUSHIMA, Teppei KOMIYA, Takayuki SHIMAOKA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 640-652 doi: 10.1007/s11709-018-0502-6

Abstract: Couple of industrial and micro-focus X-ray computed tomography (CT) scanners combined with an image analysis

Keywords： municipal solid waste incineration residues     coal fly ash     unconfined compression test     image analysis     X-Ray    

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High-Throughput Powder Diffraction Using White X-Ray Beam and a Simulated Energy-Dispersive Array Detector Article

Xiaoping Wang, Weiwei Dong, Peng Zhang, Haoqi Tang, Lanting Zhang, Tieying Yang, Peng Liu, Hong Wang, X.-D. Xiang

Engineering 2022, Volume 10, Issue 3,   Pages 81-88 doi: 10.1016/j.eng.2021.05.023

Abstract:

High-throughput powder X-ray diffraction (XRD) with white X-ray beam and an energy-dispersive detectorThe X-ray fluorescence (XRF) signal is collected simultaneously.In comparison with ARXRD, the diffraction signal generated by a white X-ray beam over monochromic light

Keywords： High-throughput experiment     White beam X-ray diffraction     Energy-dispersive array detector     Energy-dispersiveX-ray diffraction     Angle-resolved X-ray diffraction    

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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:

Detection system makes the core equipment for collecting feature information of radiation fields, and is the key point and technical basis for carrying out pulsed radiation detection. Its performance directly determines the choice of measuring method and the quality of measured data. A systematic description of characteristic parameters affecting its performance in pulsed radiation detection is the basis for the design, development, application and comprehensive performance assessment of the detection system. Main 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 current and discrimination of neutron to gamma rays, etc. To realize these parameters in designing a detection system, certain detection construction and technical principles have to be established in accordance with the basic interaction principles of neutron/gamma rays with materials. Designing principles include balancing energy collection with charge collection, geometry efficiency with high signal-noise ratio, separation of signal response from irradiation response, detection sensitivity with time response, overall performance with application reliability, etc. The designing technology of radiation detection systems can be developed with an integrated utilization of these principles.

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

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Ray-triangular Bézier patch intersection using hybrid clipping algorithm Article

Yan-hong LIU,Juan CAO,Zhong-gui CHEN,Xiao-ming ZENG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 10,   Pages 1018-1030 doi: 10.1631/FITEE.1500390

Abstract: we present a novel geometric method for efficiently and robustly computing intersections between a rayIf the ray pierces the patch only once, we locate the parametric value of the intersection to a smallerWhen the ray intersects the patch more than once, Descartes’ rule of signs and a split step are requiredExperiments have been conducted to illustrate the efficacy of our method in solving ray-triangular Bézier

Keywords： Ray tracing     Triangular Bé     zier surface     Ray-patch intersection     Root-finding     Hybrid clipping    

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The Development of Technology for Pulsed X-ray Simulators

Qiu Aici

Strategic Study of CAE 2000, Volume 2, Issue 9,   Pages 24-28

Abstract:

In this paper is given briefly a survey of situation of simulating pulsed x-ray with high currenthigh pulsed power Z-pinch has vast application prospects in the realization of ultraintensive pulsed x-rayAlso are described the progress and the current status of simulators for pulsed x-ray in China, and proposals

Keywords： pulsed x-ray     high pulsed power technology     pulsed electron beam accelerator     Z-pinch     ICF    

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Title Author Date Type Operation

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

Optimization and modeling of coagulation-flocculation to remove algae and organic matter from surface water by response surface methodology

Ray, Ajay K Ray, Tianyin Huang, Jiabin Chen

Journal Article

Establishing two-stage interaction between fly ash and NaOH by X-ray and infrared analyses

Bhagwanjee JHA,Nevin KOSHY,Devendra Narain SINGH

Journal Article

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

Jian XU, Weisheng WEI, Kai ZHANG

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

Error analysis of the parameters for non-coaxial grazing X-ray microscope

ZHAO Lingling, HU Jiasheng, LI Xiang

Journal Article

β-Nickel hydroxide cathode material for nano-suspension redox flow batteries

Yue LI, Cheng HE, Elena V. TIMOFEEVA, Yujia DING, Javier PARRONDO, Carlo SEGRE, Vijay RAMANI

Journal Article

analysis of soil failure on defective underground pipe due to cyclic water supply and drainage using X-ray

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Journal Article

Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

Journal Article

mechanical properties of municipal solid waste incineration residues with cement and coal fly ash using X-ray

Toshifumi MUKUNOKI, Ta Thi HOAI, Daisuke FUKUSHIMA, Teppei KOMIYA, Takayuki SHIMAOKA

Journal Article

High-Throughput Powder Diffraction Using White X-Ray Beam and a Simulated Energy-Dispersive Array Detector

Xiaoping Wang, Weiwei Dong, Peng Zhang, Haoqi Tang, Lanting Zhang, Tieying Yang, Peng Liu, Hong Wang, X.-D. Xiang

Journal Article

Detectors for pulsed neutron and gamma-ray measurement

Ouyang Xiaoping

Journal Article

Ray-triangular Bézier patch intersection using hybrid clipping algorithm

Yan-hong LIU,Juan CAO,Zhong-gui CHEN,Xiao-ming ZENG

Journal Article

The Development of Technology for Pulsed X-ray Simulators

Qiu Aici

Journal Article