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Research on Expansion Theory of Ammonium Nitrate

Lü Chunxu

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 58-63

Abstract:

In this paper, expansion process of AN is described, its physical chemical parameters are calculated

Keywords： expanded ammonium nitrate     expansion theory     physical chemical parameter     influencing factor    

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New insights into the formation of ammonium nitrate from a physical and chemical level perspective

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1737-6

Abstract:

● Factor analysis of ammonium nitrate formation based on thermodynamic theory.

Keywords： Ammonium nitrate formation     Thermodynamic theory     Aerosol liquid water content     Source apportionment    

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LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 545-558 doi: 10.15302/J-FASE -2020349

Abstract: This review examines the effects of soil physical, chemical, and microbial properties on crop water productivity

Keywords： crop water productivity     crop yield     soil chemical properties     soil microbial properties     soil physical    

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Investigation of effects of Cocamide Diethanolamide chemical on physical and rheological properties of

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 99-116 doi: 10.1007/s11709-021-0799-4

Abstract: In this study, bituminous binder was modified with Cocamide Diethanolamide chemical, a non-ionic surfactant, and the physical and rheological properties of modified binders were investigated.Bituminous binder was modified more than once with the chemical by changing modification parameters andThe effects of different modification parameters and chemical additive on modified samples were investigated

Keywords： Cocamide Diethanolamide     bitumen modification     rheology     Superpave tests    

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Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 385-396 doi: 10.1007/s11783-008-0073-1

Abstract: treatment methods are, only to a limited part, able to satisfy these needs, the role and significance of physical/chemical processes in wastewater treatment are gaining more and more interest.The specific future role and aim of the various physical/chemical treatment processes can be categorizedDevelopment of more environmentally sustainable wastewater treatment chains in which physical/chemical

Keywords： control     beneficial     valuable     scarcity     Development    

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LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Di WU, Allan A. ANDALES, Hui YANG, Qing SUN, Shichao CHEN, Xiuwei GUO, Donghao LI, Taisheng DU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 545-558 doi: 10.15302/J-FASE-2020349

Abstract: This review examines the effects of soil physical, chemical, and microbial properties on crop water productivity

Keywords： crop water productivity     crop yield     soil chemical properties     soil microbial properties     soil physical properties     water consumption    

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: The UCD/CIT model was modified to include a process analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondary nitrate aerosol during a stagnant wintertime air pollution episode during the California Regional PM /PM Air Quality Study (CRPAQS) where detailed measurements of PM components are available at a few sites. Secondary nitrate is formed in the urban areas from near the ground to a few hundred meters above the surface during the day with a maximum modeled net increase rate of 4 μg·m ·d during the study episode. The secondary nitrate formation rate in rural areas is lower due to lower NO . In the afternoon hours, near-surface temperature can be high enough to evaporate the particulate nitrate. In the nighttime hours, both the gas phase N O reactions with water vapor and the N O heterogeneous reactions with particle-bound water are important for secondary nitrate formation. The N O reactions are most import near the surface to a few hundred meters above surface with a maximum modeled net secondary nitrate increase rate of 1 μg·m ·d and are more significant in the rural areas where the O concentrations are high at night. In general, vertical transport during the day moves the nitrate formed near the surface to higher elevations. During the stagnant days, process analysis indicates that the nitrate concentration in the upper air builds up and leads to a net downward flux of nitrate through vertical diffusion and a rapid increase of surface nitrate concentration.

Keywords： secondary nitrate aerosol     N2O5 heterogeneous reaction     process analysis    

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Effect of land-use management systems on coupled physical and mechanical, chemical and biological soil

Rainer HORN, Winfried E. H. BLUM

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 3,   Pages 243-245 doi: 10.15302/J-FASE-2020334

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Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Strategic Study of CAE 2013, Volume 15, Issue 3,   Pages 80-87

Abstract:

The lab-scale and pilot-scale physical-chemical and biochemical combinedresults showed that the removal performance could be improved significantly by reasonable coupling of physical-chemical

Keywords： refractory     dry-spun     acrylic fiber wastewater     physical-chemical     biochemical     combined treatment    

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The Physical Characteristic of the High Energy Density and the Chemical Explosions and Discussion on

Zhou Fengjun

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 45-51

Abstract: p>Based on results of radiate-hydrodynamic and TNT charge hydrodynamic blast wave calculations, the physical

Keywords： high energy density explosion     chemical explosion     shock wave     flood wave    

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Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 991-1009 doi: 10.1007/s11705-022-2259-7

Abstract: The dielectric constant of a cellulose insulating paper can be effectively reduced by chemical or physical

Keywords： low dielectric constant     chemical and physical modification     cellulose insulating paper     transformer    

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Mass transport mechanisms within pervaporation membranes

Yimeng Song, Fusheng Pan, Ying Li, Kaidong Quan, Zhongyi Jiang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 458-474 doi: 10.1007/s11705-018-1780-1

Abstract: Pervaporation is an energy-efficient membrane technology for separating liquid molecules of similar physicalthis review focuses on two categories of mass transport mechanisms within pervaporation membranes: physicalmechanism (solution-diffusion mechanism, molecular sieving mechanism) and chemical mechanism (facilitated

Keywords： pervaporation membrane     mass transport mechanisms     physical mechanism     chemical mechanism    

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Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0703-5

Abstract: In fiber laser beam welding (LBW), the selection of optimal processing parameters is challenging and plays a key role in improving the bead geometry and welding quality. This study proposes a multi-objective optimization framework by combining an ensemble of metamodels (EMs) with the multi-objective artificial bee colony algorithm (MOABC) to identify the optimal welding parameters. An inverse proportional weighting method that considers the leave-one-out prediction error is presented to construct EM, which incorporates the competitive strengths of three metamodels. EM constructs the correlation between processing parameters (laser power, welding speed, and distance defocus) and bead geometries (bead width, depth of penetration, neck width, and neck depth) with average errors of 10.95%, 7.04%, 7.63%, and 8.62%, respectively. On the basis of EM, MOABC is employed to approximate the Pareto front, and verification experiments show that the relative errors are less than 14.67%. Furthermore, the main effect and the interaction effect of processing parameters on bead geometries are studied. Results demonstrate that the proposed EM-MOABC is effective in guiding actual fiber LBW applications.

Keywords： laser beam welding     parameter optimization     metamodel     multi-objective    

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Theoretical research and application of petrochemical Cyber-physical Systems

Jiming WANG

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 242-255 doi: 10.15302/J-FEM-2017053

Abstract: A Cyber-physical System (CPS) is the infrastructure of a petrochemical smart factory.

Keywords： Cyber-physical System (CPS)     petrochemical industry     smart factory    

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A survey of physical activity among urban women in China

Shilin DENG MD, Tongyuan LIU,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 463-469 doi: 10.1007/s11684-009-0081-y

Abstract: Few studies have been conducted to assess the level of physical activity (PA) of women in China.The proportion of physical inactivity was around 26.8%.Physical inactivity appears to be more common among younger women, or college-educated women, office

Keywords： physical activity     urban women     China    

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Title Author Date Type Operation

Research on Expansion Theory of Ammonium Nitrate

Lü Chunxu

Journal Article

New insights into the formation of ammonium nitrate from a physical and chemical level perspective

Journal Article

LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Journal Article

Investigation of effects of Cocamide Diethanolamide chemical on physical and rheological properties of

Journal Article

Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Journal Article

LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Di WU, Allan A. ANDALES, Hui YANG, Qing SUN, Shichao CHEN, Xiuwei GUO, Donghao LI, Taisheng DU

Journal Article

Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Journal Article

Effect of land-use management systems on coupled physical and mechanical, chemical and biological soil

Rainer HORN, Winfried E. H. BLUM

Journal Article

Research on physical-chemical and biochemical combined technology in the treatment of refractory petrochemical

Tian Zhiyong,Tu Xiang,Song Yonghui,Xin Wang,Li Fayun

Journal Article

The Physical Characteristic of the High Energy Density and the Chemical Explosions and Discussion on

Zhou Fengjun

Journal Article

Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Journal Article

Mass transport mechanisms within pervaporation membranes

Yimeng Song, Fusheng Pan, Ying Li, Kaidong Quan, Zhongyi Jiang

Journal Article

Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Journal Article

Theoretical research and application of petrochemical Cyber-physical Systems

Jiming WANG

Journal Article

A survey of physical activity among urban women in China

Shilin DENG MD, Tongyuan LIU,

Journal Article