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Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 44-56 doi: 10.15302/J-FASE-2017193

Abstract: In water-limited landscapes, patterns in primary production are highly variable across space and time. Livestock grazing is a common agricultural practice worldwide and a concern is localized overuse of specific pasture resources that can exacerbate grass losses and soil erosion. On a research ranch in New Mexico with average annual rainfall of 217 mm, we demonstrate with a quantitative approach that annual seasons vary greatly and examine foraging patterns in Angus-Hereford ( ) cows. We define five seasonal stages based on MODIS NDVI: pre-greenup, greenup, peak green, drydown and dormant, and examine livestock movements in 2008. Daily distance traveled by cows was greater and foraging area expanded during periods with higher precipitation. A regression model including minimum NDVI, rainfall and their interaction explained 81% of the seasonal variation in distance traveled by cows ( <0.01). Cows explored about 81 ha·d while foraging, but tended to explore smaller areas as the pasture became greener (greenup and peak green stages). Cows foraged an average of 9.7 h daily and spent more time foraging with more concentrated search patterns as pastures became greener. Our findings suggest that phenological context can expand the capacity to compare and integrate findings, and facilitate meta-analyses of grazing studies conducted at different locations and times of year.

Keywords: GPS collars     Jornada Experimental Range     land-surface phenology     livestock movement     LTAR     MODIS NDVI     rangeland    

An experimental study for optimization of high range water reducing superplasticizer in self compacting

Rahul DUBEY, Pardeep KUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 62-71 doi: 10.1007/s11709-013-0192-z

Abstract: This paper focuses mainly on experimental study to optimize dosages of superplasticizer for mortar of

Keywords: self-compacting concrete (SCC)     fresh properties     superplasticizer     optimization     compressive strength    

Range of ecological impact of highway construction in the Longitudinal Range-Gorge Region, China

Jie LIU, Fan CHEN, Haiqing GENG, Xinxin QIU, Binbin CAI,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 349-360 doi: 10.1007/s11783-010-0027-2

Abstract: Dali to Baoshan) and the Sixiao highway (from Simao to Xiaomengyang) passing through the Longitudinal Range-Gorgespecies to protect, a method of ecosystem health assessment was introduced to calculate the overall rangeFor the road sections having plants or soils of interest, indexes were selected and the range of impactThe range of impact on animal populations was also discussed in terms of the minimum living areas requiredthe zones impacted by highway construction were composed of both regular and anomalous figures, the range

Keywords: range of impact     quantitative analysis     highway construction     Longitudinal Range-Gorge Region    

Two Ways Pseudo Range Time Synchronization for Navigation Satellite Clock

Tan Shusen

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 70-74

Abstract:

Aiming at the demand of time synchronization, the navigation satellite two-way clock pseudo rangeIn the second section two way pseudo range time synchronization theory was introduced, that is to getIn the third sections pseudo range time synchronization ways introduced.In the fourth, fifth and sixth section of the paper, two way radio pseudo range(TWRPr), two way laserpseudo range(TWLPr) ,two way satellite-relay pseudo range (TWSrPr), and two way earth-relay pseudo range

Keywords: navigation satellite     pseudo range     time synchronization    

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 414-423 doi: 10.1007/s11708-010-0108-8

Abstract: In this paper, a multi-zone model is developed to predict the operating range of homogeneous charge compressionThe boundaries of the operating range were determined by knock (presented by ringing intensity), partialFurthermore, the model was applied to predict the operating range of the HCCI engine under differentThe potential to extend the operating range of the HCCI engine through two strategies, i.e., variableHigher intake temperatures and lower compression ratios can also extend the high load range.

Keywords: homogeneous charge compression ignition (HCCI) engine     multi-zone     operating range    

Accelerated degradation of orange G over a widepH range in the presence of FeVO

Xiaoxia Ou, Jianfang Yan, Fengjie Zhang, Chunhua Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1013-3

Abstract: ,the narrow working pH range.

Keywords: Azo dye     Degradation     FeVO4     Kinetics     Advanced oxidation processes    

Kd-tree and quad-tree decompositions for declustering of 2D range queries over uncertain space

Ahmet SAYAR,Süleyman EKEN,Okan ÖZTÜRK

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 2,   Pages 98-108 doi: 10.1631/FITEE.1400165

Abstract: We present a study to show the possibility of using two well-known space partitioning and indexing techniques, kd trees and quad trees, in declustering applications to increase input/output (I/O) parallelization and reduce spatial data processing times. This parallelization enables time-consuming computational geometry algorithms to be applied efficiently to big spatial data rendering and querying. The key challenge is how to balance the spatial processing load across a large number of worker nodes, given significant performance heterogeneity in nodes and processing skews in the workload.

Keywords: Kd tree     Quad tree     Space partitioning     Spatial indexing     Range queries     Query optimization    

Near range millimeter wave synthetic aperture radiometer passive range measurement

Wang Benqing,Li Xingguo

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 95-99

Abstract:

The Particle Swarm Optimization (PSO) is an evolutionary computation, which not only can search solutions randomly and fully, but also is convenient to be carried out. Hence, the article focuses on the application of PSO to the multiple-objective coordination optimization of project, looking forward to seeking best solutions easily and quickly. After introducing the basic theory of the algorithms and its several versions, the article aims at the efficiency coefficient of quality, cost, time and resource subsystem, and set up a multiple optimization coordination model. In the following part, the article introduces how to apply PSO to solve the project coordination optimization problem in detail. The numeric example followed indicates that PSO can solve the multiple-objectives coordination optimization problem of project exactly and quickly.

Keywords: Particle Swarm Optimization (PSO)     project management     efficiency coefficient of coordination     multiple optimization coordination model     numeric example    

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 265-278 doi: 10.1007/s11465-017-0453-y

Abstract: These parallelograms are serially connected for a large travel range and a high out-of-plane payloadThe stage has a travel range of 4.4 mm× 7.0 mm and a 0.16% area ratio of workspace to the outer

Keywords: mechatronic design     linear compliant positioning stage     large travel range     high out-of-plane payload capacity    

Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1522-y

Abstract:

• Simultaneous C & N removal in Methammox occurs at wide C:N ratio.

Keywords: Methanogens     Biological Nitrogen Removal (BNR)     Simultaneous     Methammox     C:N ratio    

Range estimation based on symmetry polynomial aided Chinese remainder theorem for multiple targets in Research Articles

Chenghu CAO, Yongbo ZHAO,ybzhao@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 304-316 doi: 10.1631/FITEE.2000418

Abstract: multiple-PRF-based scheme is difficult to be applied in because of unknown correspondence between the target rangeand measured range, especially using the Chinese remainder theorem (CRT) algorithm.In this paper, we present a symmetry polynomial aided CRT algorithm to effectively achieve range estimation

Keywords: Range ambiguity     Erroneous range     Multiple targets     Symmetry polynomial aided Chinese remainder theorem    

A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 63-72 doi: 10.1007/s11783-014-0754-x

Abstract: electrical mobility sizing and aerodynamic sizing was developed to measure aerosol size distributions in the rangecorrect particle multiple charging effects and to integrate data from the three instruments into a wide-rangeDistributions measured by the RSMPS and APS were consistent in the overlap size range of 550 – 700 nmA full spectrum in the size range of 3 nm to 10 μm was demonstrated by measuring aerosol generated using

Keywords: spectrometer     particle size distribution     electrical mobility     linear inversion     aerodynamic diameter    

Short-Range Current Velocity Records to Apply in the Reference Period for Sutong Bridge

Su Hui,Gong Weiming,Liang Shuting

Strategic Study of CAE 2006, Volume 8, Issue 7,   Pages 42-46

Abstract: A method is introduced to determine the current velocity of reference period through short-range currentvelocity records for the area that lacks of long-range current velocity records.According to short-range current velocity records of Sutong Bridge the probability distribute mode of

Keywords: short-range records     the current velocity of reference period     correlation analysis     regression equation    

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 appropriate demulsifier dosage range wasitemcontent>

Sulfate could broaden appropriate demulsifier dosage range

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

A deployment strategy for wireless sensor networks using indoor radio propagation model

Huo Hongwei,Gao Shuai,Niu Yanchao,Zhang Sidong

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 64-69

Abstract: The relationship between effective communication range and effective sensing range is also discussed.

Keywords: wireless sensor network     effective communication range     effective sensing range     sensing collapsar     coverage    

Title Author Date Type Operation

Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Journal Article

An experimental study for optimization of high range water reducing superplasticizer in self compacting

Rahul DUBEY, Pardeep KUMAR

Journal Article

Range of ecological impact of highway construction in the Longitudinal Range-Gorge Region, China

Jie LIU, Fan CHEN, Haiqing GENG, Xinxin QIU, Binbin CAI,

Journal Article

Two Ways Pseudo Range Time Synchronization for Navigation Satellite Clock

Tan Shusen

Journal Article

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Journal Article

Accelerated degradation of orange G over a widepH range in the presence of FeVO

Xiaoxia Ou, Jianfang Yan, Fengjie Zhang, Chunhua Zhang

Journal Article

Kd-tree and quad-tree decompositions for declustering of 2D range queries over uncertain space

Ahmet SAYAR,Süleyman EKEN,Okan ÖZTÜRK

Journal Article

Near range millimeter wave synthetic aperture radiometer passive range measurement

Wang Benqing,Li Xingguo

Journal Article

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Journal Article

Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:

Journal Article

Range estimation based on symmetry polynomial aided Chinese remainder theorem for multiple targets in

Chenghu CAO, Yongbo ZHAO,ybzhao@xidian.edu.cn

Journal Article

A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Journal Article

Short-Range Current Velocity Records to Apply in the Reference Period for Sutong Bridge

Su Hui,Gong Weiming,Liang Shuting

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

A deployment strategy for wireless sensor networks using indoor radio propagation model

Huo Hongwei,Gao Shuai,Niu Yanchao,Zhang Sidong

Journal Article