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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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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 neutroninclude detection sensitivity, time response, energy response, linear current and discrimination of neutrontechnical principles have to be established in accordance with the basic interaction principles of neutron

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

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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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Migration of ammonium nitrogen in ion-absorbed rare earth soils during and post mining: a column study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1702-4

Abstract:

● Column experiments with an inclined slope were applied to simulate NH4–N transport.

Keywords： Ion-absorbed rare earth     Ammonium nitrogen transport     HYDRUS-2D     Numerical simulation    

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The Characterization System of the Ballistic Performance of Armor Magnesium Alloys

Cai Hongnian,Tan Chengwen,Wang Fuchi,Chen Zhiyong

Strategic Study of CAE 2006, Volume 8, Issue 2,   Pages 30-33

Abstract:

The absorbed energy property and deformation characteristic of magnesium alloy under high strain ratescience problem connected with materials' ballistic performance closely such as dynamic strength, absorbedenergy rate, adiabatic shear deformation localization and dynamic hardness are discussed primarily.

Keywords： absorbed energy rate     adiabatic shear deformation localization     dynamic strength     dynamic hardness    

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A biological effectiveness study on U251 induced by fast neutrons

Yang Lei,Wang Xiao,Kong Fuquan,Sui Li,Cui Suzhen,Zheng Jieying,Ma Nanru,Zhao Kui

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 91-95

Abstract: style="text-align: justify;">Objective: U251 cells were exposed to fast neutrons of 14 MeV energy, and dose-responseThe cell survival, apoptotic rate and proliferation were tested after irradiation; Result: with the growthof the radiation dose, cell survival was declined, and apoptotic rate was promoted; the speed of thewhich was observed 48 h after irradiation, was slowed down viously; Conclusion: compared to γ ray

Keywords： fast neutron     U251 cell     biological effectiveness     dose respond curve    

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Low-dose CT for lung cancer screening: opportunities and challenges

Hongbing Shen

Frontiers of Medicine 2018, Volume 12, Issue 1,   Pages 116-121 doi: 10.1007/s11684-017-0600-1

Abstract: However, minimal progress was achieved until recently, when low-dose spiral computed tomography (LDCT

Keywords： lung cancer     low-dose computerized tomography     early detection     opportunities     challenges    

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Estimation of the minimum effective dose of tramadol for postoperative analgesia in infants using the

Yue’e Dai, Dongxu Lei, Zhenghua Huang, Yan Yin, G. Allen Finley, Yunxia Zuo

Frontiers of Medicine 2012, Volume 6, Issue 3,   Pages 288-295 doi: 10.1007/s11684-012-0208-4

Abstract: In each phase, 24 participants were allocated a different tramadol dose.In phase 1, seven dose levels were used within the range 0.1–0.4 mg?Phase 1 was insufficient to identify the MED, and we increased the dose to 0.4–0.8 mg?In phase 2, it was 84.7% (95% CI, 0.789–0.991) with the dose 0.8 mg?kg-1?In phase 3, the successful analgesia probability for dose 0.35 mg?kg-1?

Keywords： tramadol     minimum effective dose     postoperative analgesia     infants     continual reassessment method    

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Comparison of exogenous degrader-enhanced bioremediation with low-dose persulfate oxidation for polycyclic

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1733-x

Abstract: In this study, bioaugmentation with a PAH-degrading Bacillus PheN7 (BA) and low-dose persulfate

Keywords： Bioaugmentation     Low-dose persulfate oxidation     Polycyclic aromatic hydrocarbon     Remediation    

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Early assessment of the safety and immunogenicity of a third dose (booster) of COVID-19 immunization

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 93-101 doi: 10.1007/s11684-021-0914-x

Abstract: Here we report a pilot open-label trial of a third dose of BBIBP-CorV, an inactivated SARS-CoV-2 vaccinein all participants within 4 weeks, surpassing the peak antibody titers elicited by the initial two-dose

Keywords： COVID-19     SARS-CoV-2     vaccine     immunization     booster immunization    

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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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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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An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous

Xiang Du

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 506-509 doi: 10.1007/s11684-013-0294-y

Abstract:

This study aimed to investigate patient dose in diagnostic screen-film radiographic examinations inThe entrance surface air Kerma (ESAK) of seven conventional screen-film radiology X-ray equipment inThe X-ray examinations were divided into three categories: PA (posterior-anterior) chest, upper/lowerIn addition, the mean ESAK value recorded for PA chest X-ray examinations exceeded the corresponding

Keywords： radiation dosage     radiology     radiation protection     radiography/statistics & numerical data    

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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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Title Author Date Type Operation

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

Detectors for pulsed neutron and gamma-ray measurement

Ouyang Xiaoping

Journal Article

Development of Pulsed Radiation Detection Technology

Ouyang Xiaoping

Journal Article

Migration of ammonium nitrogen in ion-absorbed rare earth soils during and post mining: a column study

Journal Article

The Characterization System of the Ballistic Performance of Armor Magnesium Alloys

Cai Hongnian,Tan Chengwen,Wang Fuchi,Chen Zhiyong

Journal Article

A biological effectiveness study on U251 induced by fast neutrons

Yang Lei,Wang Xiao,Kong Fuquan,Sui Li,Cui Suzhen,Zheng Jieying,Ma Nanru,Zhao Kui

Journal Article

Low-dose CT for lung cancer screening: opportunities and challenges

Hongbing Shen

Journal Article

Estimation of the minimum effective dose of tramadol for postoperative analgesia in infants using the

Yue’e Dai, Dongxu Lei, Zhenghua Huang, Yan Yin, G. Allen Finley, Yunxia Zuo

Journal Article

Comparison of exogenous degrader-enhanced bioremediation with low-dose persulfate oxidation for polycyclic

Journal Article

Early assessment of the safety and immunogenicity of a third dose (booster) of COVID-19 immunization

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

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

An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous

Xiang Du

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