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

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 in the city of Lhasa, China. Seven out of the twenty-six hospitals registered with the Lhasa Health Bureau were included in the investigation. The entrance surface air Kerma (ESAK) of seven conventional screen-film radiology X-ray equipment in these hospitals was measured with a QA dosimeter in September 2012. The X-ray examinations were divided into three categories: PA (posterior-anterior) chest, upper/lower limb, and AP (anterior-posterior) lumbar spine. For each category, ESAKs were calculated and analyzed. The mean ESAK was 0.6 mGy for PA chest, 0.3 mGy for upper/lower limb, and 1.8 mGy for AP lumbar spine. In addition, the mean ESAK value recorded for PA chest X-ray examinations exceeded the corresponding value recommended by the International Atomic Energy Agency (0.4 mGy).

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

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Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0895-9

Abstract: Consequently, there is a need to automatic control of two decisive operational processes, carbon dosageA novel simple online control strategy for carbon dosage with the effluent nitrate as the sole controlThe online control strategy for carbon dosage was successfully applied in a RWWTP.online control strategy, the effluent nitrate concentration was controlled relatively stable and carbon dosage

Keywords： Reclaimed water treatment     Denitrifying biofilter     Carbon dosage     Backwash control    

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Impact of food to microorganism ratio and alcohol ethoxylate dosage on methane production in treatment

Yulun Nie, Xike Tian, Zhaoxin Zhou, Yu-You Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0947-1

Abstract: The effects of food to microorganism (F/M) ratio and alcohol ethoxylate (AE) dosage on the methane productionindicated that AE had an inhibitory effect to methane production potential (lag-time depends on the AE dosage

Keywords： Anaerobic membrane bioreactor AnMBR     F/M ratio     Surfactant     Wastewater     Methane production     Influence    

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Particle therapy for cancers: a new weapon in radiation therapy

Guo-Liang Jiang

Frontiers of Medicine 2012, Volume 6, Issue 2,   Pages 165-172 doi: 10.1007/s11684-012-0196-4

Abstract: Particle irradiation started to draw attention in the past decade and has now become a hotspot in the radiationdevelopments in particle irradiation, focusing on the characteristics of proton and carbon ions in radiationCompared with the most advanced radiation techniques using photon, such as three-dimensional conformalradiation therapy and intensity-modulated radiation therapy, proton therapy has yielded more promising

Keywords： radiation therapy     particle therapy     proton     carbon     cancer    

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Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 480-492 doi: 10.1007/s11708-017-0506-2

Abstract: This paper investigated radiation heat transfer and temperature distributions of solar thermochemicalsyngas production using the finite volume discrete ordinate method (fvDOM) and P1 approximation for radiationThe fvDOM approximation was used to obtain the radiation intensity distribution along the reactor.The drop in the temperature resulted from the radiation scattering was further investigated using theto the thermal non-equilibrium was observed in the radiation inlet region.

Keywords： solar thermochemical reactor     incident radiation flux     temperature distribution     radiation absorptivity     radiation emissivity     thermal performance analysis    

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Broadening of appropriate demulsifier dosage range for latex-containing wastewater by sulfate addition

Shengzhi Zheng, Yudong Song, Yiming Li, Lidong Sun, Bin Hu, Mingdong An, Yuexi Zhou

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 6, doi: 10.1007/s11783-018-1041-z

Abstract:

The effect of latex concentration on appropriate demulsifier dosage

The appropriate demulsifier dosage range wasp>

Sulfate could broaden appropriate demulsifier dosage

Keywords： Demulsification     Polybutadiene latex wastewater     Polyaluminum chloride     Zeta potential     Sulfate addition    

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Security of solar radiation management geoengineering

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 102-116 doi: 10.1007/s42524-019-0008-5

Abstract:

Solar Radiation Management (SRM) geoengineering is a proposed response to anthropogenic global warming

Keywords： security     geoengineering     solar radiation ma-nagement     SRM    

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Distributed governance of Solar Radiation Management geoengineering: A possible solution to SRM’s “free-driver

Andrew LOCKLEY

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 551-556 doi: 10.1007/s42524-019-0055-y

Abstract: Solar Radiation Management geoengineering (SRM) offers relatively inexpensive, rapid temperature control

Keywords： geoengineering     Solar Radiation Management     governance     decentralised    

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Theoretical study on flow and radiation in tubular solar photocatalytic reactor

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 687-699 doi: 10.1007/s11708-021-0773-9

Abstract: Parameters influencing photocatalyst distribution and radiation distribution at the reactor outlet, viz

Keywords： photocatalytic hydrogen photoreactor     nume- rical simulation     solar energy     flow model     radiation model    

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A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propane

Jie JI, Junrui DUAN, Huaxian WAN

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1017-1026 doi: 10.1007/s11708-020-0716-x

Abstract: The interaction of multiple fires may lead to a higher flame height and more intense radiation flux thanMoreover, the multi-point source model was further improved, and radiation fraction of propane was calculatedThe data obtained in this study would play an important role in calculating the external radiation of

Keywords： flame interaction     air entrainment     flame height     multi-point source model     thermal radiation    

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Design and analysis of Salisbury screens and Jaumann absorbers for solar radiation absorption

Xing FANG, C. Y. ZHAO, Hua BAO

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 158-168 doi: 10.1007/s11708-018-0542-6

Abstract: ., Salisbury screens and Jaumann absorbers are systematically investigated in solar radiation absorption

Keywords： thin films     admittance loci     solar absorber    

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Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0716-0

Abstract: In this paper, we propose a mechanically reconfigurable radiation array (RRA) based on miniaturized elements

Keywords： mechanism     reconfigurable radiation array (RRA)     compact state     deployed state     enhanced gain    

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The effect of orbital radiation therapy on thyroid-associated orbitopathy complicated with dysthyroid

Yang Wang, Huifang Zhou, Xianqun Fan

Frontiers of Medicine 2017, Volume 11, Issue 3,   Pages 359-364 doi: 10.1007/s11684-017-0528-5

Abstract: Orbital radiation therapy (ORT) is an anti-inflammatory treatment used in the treatment of active TAO

Keywords： thyroid-associated orbitopathy     dysthyroid optic neuropathy     orbital radiation therapy    

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Numerical simulation and experiment research of radiation performance in a dish solar collector system

Yong SHUAI, Xinlin XIA, Heping TAN

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 488-495 doi: 10.1007/s11708-010-0007-z

Abstract: The Monte Carlo ray-tracing method is applied and coupled with optical properties to predict the radiationSeveral different cavity geometries are compared on the radiation performance.

Keywords： Monte Carlo method     solar energy     radiation performance     cavity receiver    

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Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 166-173 doi: 10.1007/s11708-010-0105-y

Abstract: The optimization of a space power system is greatly affected by the radiation heat transfer in a liquidRadiation heat transfer in a two-dimensional bed of phase-change particle is modeled by solving the radiative

Keywords： radiation heat transfer     particle polydispersion     liquid droplet radiator     phase change    

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Title Author Date Type Operation

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

Xiang Du

Journal Article

Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

Journal Article

Impact of food to microorganism ratio and alcohol ethoxylate dosage on methane production in treatment

Yulun Nie, Xike Tian, Zhaoxin Zhou, Yu-You Li

Journal Article

Particle therapy for cancers: a new weapon in radiation therapy

Guo-Liang Jiang

Journal Article

Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for

Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING

Journal Article

Broadening of appropriate demulsifier dosage range for latex-containing wastewater by sulfate addition

Shengzhi Zheng, Yudong Song, Yiming Li, Lidong Sun, Bin Hu, Mingdong An, Yuexi Zhou

Journal Article

Security of solar radiation management geoengineering

Andrew LOCKLEY

Journal Article

Distributed governance of Solar Radiation Management geoengineering: A possible solution to SRM’s “free-driver

Andrew LOCKLEY

Journal Article

Theoretical study on flow and radiation in tubular solar photocatalytic reactor

Journal Article

A method of determining flame radiation fraction induced by interaction burning of tri-symmetric propane

Jie JI, Junrui DUAN, Huaxian WAN

Journal Article

Design and analysis of Salisbury screens and Jaumann absorbers for solar radiation absorption

Xing FANG, C. Y. ZHAO, Hua BAO

Journal Article

Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Journal Article

The effect of orbital radiation therapy on thyroid-associated orbitopathy complicated with dysthyroid

Yang Wang, Huifang Zhou, Xianqun Fan

Journal Article

Numerical simulation and experiment research of radiation performance in a dish solar collector system

Yong SHUAI, Xinlin XIA, Heping TAN

Journal Article

Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Journal Article