The organic expanded vermiculite (OEVMT) is a good anti-aging agent for asphalt binder due to its excellent heat and oxygen barrier properties. However, the application form of OEVMT usually limited being as modifier while seldom research takes it an alternative filler in mixture. Using has potential further improve aging resistance mixture comparison with using modifier, because amount can be largely increased this case. In present study, different proportions fillers were replaced by...

With the wideband beamforming approaches, synthetic aperture radar (SAR) could achieve high azimuth resolution and wide swath. However, performance of conventional adaptive time-domain is severely affected as received signal snapshots are insufficient for approaches. In this paper, a beamformer using convolutional neural network (CNN) method, namely, frequency constraint prediction (WBPNet), proposed to obtain satisfactory in circumstances scanty snapshots. The WBPNet successfully estimates...

Determination of relative root-zone water depletion (RRWD) thresholds to trigger irrigation is crucial create optimal schedules targeting maximum yield and/or productivity with limited supply for a crop. In this study, numerical procedure determine RRWD was developed through coupling AquaCrop software genetic-simplex algorithms. Using two-year field lysimetric experiment winter wheat conducted in the North China Plain (NCP), adequately simulated canopy cover, final aboveground biomass, grain...

Vertical cutoff walls have been widely used in the remediation of contaminated sites. However, determining best method for evaluating long-term barrier performance vertical presents a major difficulty actual projects. Here, case study is presented typical electroplating, medical, and chemical industrial park China. Based on analysis groundwater pollution characteristics at site, pollutants included metals (Ni, Al), ammonia nitrogen, 1,2-dichloroethane. Finite element model simulations Ni...

Many functions have been proposed to describe the response of root water uptake and/or salinity stresses. In practice, choosing a reliable stress function is challenging, particularly when and stresses occur simultaneously. To explore quantify effects soil conditions, separately combined, on uptake, two experiments culturing winter wheat in artificial climate chambers were conducted with various levels. As key index, plant status was evaluated by: a) considering relative position roots; b)...

Abstract Due to rapid degradation of the newly filled municipal solid waste (MSW), local temperature layer increases greatly. The mechanical parameters related and deformation high-density polyethylene (HDPE) pipes in body will be affected by elevated temperature. To predict distribution anaerobic landfill, a one-dimensional heat transfer model is established this study. This considers stratification saturated unsaturated zones, layering new old waste. Furthermore, single peak for production...

Abstract Average biodegradation rate of newly filled municipal solid waste (MSW) in landfills is relatively fast, and the landfill gas produced by new MSW can cause great variations pressure. To predict pressure distribution layer, a one-dimensional transport model established this study. The following factors are considered model: (1) variation permeability with depth; (2) anisotropy ratio permeability; (3) settlement caused biodegradation. Furthermore, single peak for production applied as...

As a critical index for irrigation scheduling, plant water deficit (PWDI) is defined as the ratio of to demand reflect extent abiotic stresses such and salinity. Recently, smart according PWDI thresholds maintain desirable or acceptable stress levels, has been suggested maximize yields while minimizing negative environmental effects under non-saline conditions. To investigate quantify potential PWDI-driven on agricultural production conditions salinity, two-year experiment with six specific...

When fertigation is applied, fertilizer often injected into drip irrigation systems according to a single-pulse application method (SPAM) where single dose given either in the early, middle, or late stage of an event. To improve consistency distributions between nutrients and roots thus promote root nutrient uptake, distribution-based multistage (RMAM) was proposed, stages during each event proportionally distribution normalized length density. A case study verify potential RMAM test it...

Analytical solutions for analysing organic contaminant diffusion through a composite liner are presented in this paper. The degradation of contaminants leachate and soil both taken into account. validity accuracy the proposed analytical verified by comparing with numerical method. mass flux concentration calculated zeroconcentration zero-mass boundary condition at base liner, respectively. decrease half-life liner. It can be concluded from parametric studies that increasing thickness or...

Accurate monitoring and evaluation of root-zone soil salt content (SSC) are critical for sustainable development irrigated agriculture in arid semi-arid areas. Based on soil-crop water relations farmland evapotranspiration (ET) fused through remote sensing data, this study developed an inversion method to estimate SSC using a case from cotton fields under film mulched drip irrigation (CFFMDI) the Manas River Basin (MRB) over 21 years (2000–2020). Two hypotheses were set as: (1) relative...

The air permeability coefficient has a high correlation with the water content of municipal solid waste. In this study, continuous drying methodology using tension meter was employed to construct soil characteristic curve waste (M-SWCC). test conducted by newly designed apparatus. measured M-SWCC well reproduced van Genuchten (V-G) model and used predict parameters typical points in M-SWCC, including saturated content, field capacity, residual at inflection point. It found that significantly...

Analytical solutions for analysing organic contaminant diffusion through a composite liner are presented in this paper. The degradation of contaminants leachate and soil both taken into account. validity accuracy the proposed analytical verified by comparing with numerical method. mass flux concentration calculated zeroconcentration zero-mass boundary condition at base liner, respectively. decrease half-life liner. It can be concluded from parametric studies that increasing thickness or...