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An integrated approach to site-specific management zone delineation

Yuxin MIAO, David J. MULLA, Pierre C. ROBERT

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4,   Pages 432-441 doi: 10.15302/J-FASE-2018230

Abstract: There are three basic approaches to MZ delineation using soil and/or landscape properties, yield informationand landscape information (ROSE) or clustering multiple year yield maps (CMYYM).and landscape (8.9%–38.1%), and soil nutrient and pH variability (9.4%–14.5%).It is concluded that the integrated ROSE-YSTTS approach combining soil, landscape and yield spatial-temporalvariability information can overcome the weaknesses of approaches using only soil, landscape or yield

Keywords： optimum nitrogen rate     fuzzy cluster analysis     precision nitrogen management     site-specific management     soillandscape property     yield map    

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The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificiallandscape: a case study of Olympic Forest Park in Beijing

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 269-278 doi: 10.1007/s11783-014-0672-y

Abstract: Soil moisture variability in natural landscapes has been widely studied; however, less attention hasTherefore, a case study was carried out in the Beijing Olympic Forest Park to continuously monitor the soil

Keywords： distribution     moisture temporal variation     texture stratification     irrigation     meteorological forcing     urban landscape    

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Stress-strain relationship with soil structural parameters of collapse loess

SHAO Shengjun, LONG Jiyong, YU Qinggao

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 151-160 doi: 10.1007/s11709-008-0020-z

Abstract: the tri-axial shearing tests of unsaturated intact loess and based on the concept of comprehensive soilstructural potential, this paper reveals the changing laws of soil structural property under the tri-axial

Keywords： hardening     shearing expansion     unsaturated     structural property     mathematical expression    

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Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

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: caused with the reduction of the effective stress and the loss of suction in the base course and then, soilobserved that the loosening area was generated from the defected part with water-inflow and some of the soilBased on this observation, it might be said that the bulk density of soil around the defected pipe playedIn this paper, it was concluded that the low relative density of soil would become the critical factorground with high relative density more than 80% would be avoided in a few cycles of water inflow and soil

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

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The ecological system and the regionalization of landscape reconstruction in northwest of China

Peicheng LI,Guoyuan DU,Qilei LI,Jinfeng WANG,Feimin ZHENG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 291-298 doi: 10.15302/J-FASE-2014033

Abstract: government is strengthening research on improvement and reconstruction of the ecological system and landscapeIt is suggested that the reconstruction of landscape should be conducted by step by step regionalizationThe first level regionalization results of reconstruction of landscape are discussed.

Keywords： reconstruction of landscape     ecological system     the northwest area of China     science and technology action    

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Research on a quantificational method for chromatic-light emotions of architectural wall coatings in landscape

Ting WANG, Ma JIAN, Gang LIU, Xiaoxi LIU, Mingyu ZHANG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 498-502 doi: 10.1007/s11709-010-0096-0

Abstract: the laws of light cognitive impact and the solution to the problem on application of light color in landscapeThis paper took chromatic-light-induced-emotion towards architectural wall coatings in landscape as the, the study successfully extracted light emotional factors and the rule of predictability to assist landscape

Keywords： landscape illumination     architectural wall coatings     chromatic-light emotion     quantitative research    

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FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 63-74 doi: 10.15302/J-FASE-2021427

Abstract:

There is a growing demand for high-quality agricultural products and more countries have adopted landscape

Keywords： ecosystem services / flowering plants / natural enemies / nectar / pollen    

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nitrogen/phosphorus concentration and hydraulic retention time for bloom control in reclaimed water landscape

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1564-1

Abstract:

● A new model for bloom control in open land scape water was constructed.

Keywords： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold    

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Analysis of the genomic landscape of primary central nervous system lymphoma using whole-genome sequencing

Frontiers of Medicine   Pages 889-906 doi: 10.1007/s11684-023-0994-x

Abstract: This study aimed to depict the genetic landscape of Chinese PCNSLs.Collectively, this study comprehensively reveals the genomic landscape of newly diagnosed Chinese PCNSLs

Keywords： primary central nervous system lymphoma     whole-genome sequencing     TMSB4X     copy number variation     gene mutation    

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Taking Warning from the Eastern Part Elegant Landscape Maturing Slowly——On Landscape Architectural Development

Meng Zhaozhen

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 56-58

Abstract:

Elegant landscape will mature slowly.

Keywords： urbanization process     scenic and historical places     urban parks and gardens    

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Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1068-1

Abstract:

Check-in and survey data are explored to identify personal activity-specific places.

Ways for detecting and moderating sample bias of Weibo check-in data is proposed.

A graphic representation of urban activity intensity in Beijing, China is presented.

The potential application of Weibo check-in data for urban analysis is introduced.

Keywords： Social media     Human mobility     Population bias     Sample reconstruction     Data integration    

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A computational toolbox for molecular property prediction based on quantum mechanics and quantitativestructure-property relationship

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 152-167 doi: 10.1007/s11705-021-2060-z

Abstract: During these periods, one of the most important keys is the molecular property prediction models associatingIn this paper, a framework combining quantum mechanics and quantitative structure-property relationshipis established for fast molecular property predictions, such as activity coefficient, and so forth.which are stored in a database and further provided for the developments of quantitative structure-propertyThe whole framework has been carried out within a molecular property prediction toolbox.

Keywords： molecular property     quantum mechanics     quantitative structure-property relationship     heat of reaction    

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From understanding to designing soundscapes

Jian KANG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 403-417 doi: 10.1007/s11709-010-0091-5

Abstract: Soundscape represents a step change in the field of environmental acoustics in that it combines physical, social, and psychological approaches. Although the term soundscape was introduced in the 1960s, significant attention to it has mainly been paid in the last decade or so in the community of environmental acoustics by researchers and recently by practitioners including policy makers. This paper explores the current situation and future challenges in soundscape. Starting with a framework on research and practical needs in soundscape and a brief introduction of some recent/current networks, activities, projects, and publications, this paper then presents a systematic review of recent progress in soundscape research and practice. A short review of the soundscape research in China is also given.

Keywords： soundscape     environment     sound     design     urban     landscape    

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Convective heat transfer in helical coils for constant-property and variable-property flows with high

Yufei MAO, Liejin GUO, Bofeng BAI, Ximin ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 546-552 doi: 10.1007/s11708-010-0116-8

Abstract: Both constant-property flows at normal pressure and variable-property flows at supercritical pressure

Keywords： convective heat transfer     helical coils     high Reynolds number     supercritical pressure     variable property    

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A review on the application of nanofluids in enhanced oil recovery

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1165-1197 doi: 10.1007/s11705-021-2120-4

Abstract: Enhanced oil recovery (EOR) has been widely used to recover residual oil after the primary or secondary oil recovery processes. Compared to conventional methods, chemical EOR has demonstrated high oil recovery and low operational costs. Nanofluids have received extensive attention owing to their advantages of low cost, high oil recovery, and wide applicability. In recent years, nanofluids have been widely used in EOR processes. Moreover, several studies have focused on the role of nanofluids in the nanofluid EOR (N-EOR) process. However, the mechanisms related to N-EOR are unclear, and several of the mechanisms established are chaotic and contradictory. This review was conducted by considering heavy oil molecules/particle/surface micromechanics; nanofluid-assisted EOR methods; multiscale, multiphase pore/core displacement experiments; and multiphase flow fluid-solid coupling simulations. Nanofluids can alter the wettability of minerals (particle/surface micromechanics), oil/water interfacial tension (heavy oil molecules/water micromechanics), and structural disjoining pressure (heavy oil molecules/particle/surface micromechanics). They can also cause viscosity reduction (micromechanics of heavy oil molecules). Nanofoam technology, nanoemulsion technology, and injected fluids were used during the EOR process. The mechanism of N-EOR is based on the nanoparticle adsorption effect. Nanoparticles can be adsorbed on mineral surfaces and alter the wettability of minerals from oil-wet to water-wet conditions. Nanoparticles can also be adsorbed on the oil/water surface, which alters the oil/water interfacial tension, resulting in the formation of emulsions. Asphaltenes are also adsorbed on the surface of nanoparticles, which reduces the asphaltene content in heavy oil, resulting in a decrease in the viscosity of oil, which helps in oil recovery. In previous studies, most researchers only focused on the results, and the nanoparticle adsorption properties have been ignored. This review presents the relationship between the adsorption properties of nanoparticles and the N-EOR mechanisms. The nanofluid behaviour during a multiphase core displacement process is also discussed, and the corresponding simulation is analysed. Finally, potential mechanisms and future directions of N-EOR are proposed. The findings of this study can further the understanding of N-EOR mechanisms from the perspective of heavy oil molecules/particle/surface micromechanics, as well as clarify the role of nanofluids in multiphase core displacement experiments and simulations. This review also presents limitations and bottlenecks, guiding researchers to develop methods to synthesise novel nanoparticles and conduct further research.

Keywords： nanofluid     EOR mechanism     nanoparticle adsorption     interface property     internal property    

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Title Author Date Type Operation

An integrated approach to site-specific management zone delineation

Yuxin MIAO, David J. MULLA, Pierre C. ROBERT

Journal Article

The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificiallandscape: a case study of Olympic Forest Park in Beijing

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Journal Article

Stress-strain relationship with soil structural parameters of collapse loess

SHAO Shengjun, LONG Jiyong, YU Qinggao

Journal Article

Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Journal Article

The ecological system and the regionalization of landscape reconstruction in northwest of China

Peicheng LI,Guoyuan DU,Qilei LI,Jinfeng WANG,Feimin ZHENG

Journal Article

Research on a quantificational method for chromatic-light emotions of architectural wall coatings in landscape

Ting WANG, Ma JIAN, Gang LIU, Xiaoxi LIU, Mingyu ZHANG

Journal Article

FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Journal Article

nitrogen/phosphorus concentration and hydraulic retention time for bloom control in reclaimed water landscape

Journal Article

Analysis of the genomic landscape of primary central nervous system lymphoma using whole-genome sequencing

Journal Article

Taking Warning from the Eastern Part Elegant Landscape Maturing Slowly——On Landscape Architectural Development

Meng Zhaozhen

Journal Article

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Journal Article

A computational toolbox for molecular property prediction based on quantum mechanics and quantitativestructure-property relationship

Journal Article

From understanding to designing soundscapes

Jian KANG

Journal Article

Convective heat transfer in helical coils for constant-property and variable-property flows with high

Yufei MAO, Liejin GUO, Bofeng BAI, Ximin ZHANG

Journal Article

A review on the application of nanofluids in enhanced oil recovery

Journal Article