Crop phenology is an important parameter for crop growth monitoring, yield prediction, and simulation. The dynamic threshold method widely used to retrieve vegetation from remotely sensed index time series. However, not only driven by natural conditions, but also modified through field management activities. Complicated planting patterns, such as multiple cropping, makes the dynamics less symmetrical. These impacts are considered in current approaches retrieval based on method. Thus, this...

Agricultural land use and cropping patterns are closely related to food production, soil degradation, water resource management, greenhouse gas emission, regional climate alterations. Methods for reliable cost-efficient mapping of pattern, as well their changes over space time, therefore urgently needed. To cope with this need, we developed a phenology-based method map based on time-series vegetation index data. The proposed builds the well-known ‘threshold model’ retrieve phenological...

Obtaining accurate forest coverage of tree species is an important basis for the rational use and protection existing resources. However, most current studies have mainly focused on broad classification, such as coniferous vs. broadleaf species, a refined classification with information urgently needed. Although airborne LiDAR data or unmanned aerial vehicle (UAV) images can be used to acquire even at single level, this method will encounter great difficulties when applied large area....

The application of plant dyes in the textile industry has been very limited due to their sources, incomplete color space, and narrow gamut, etc. Therefore, studies properties gamut natural corresponding dyeing processes are essential for completing space application. In this study, water extract from bark Phellodendron amurense (P. amurense) was used as a dye. Dyeing properties, evaluation dyed cotton fabrics were studied, optimal conditions obtained. results showed that process...

Over the past decades, cities worldwide have experienced a sharp decline in urban ecological quality (UEQ) due to rapid urbanization accompanied. However, spatiotemporal dynamics of UEQ and its associated multi-scale impacts natural human factors on changes were still unknown. Thus, based Remote Sensing-based Ecological Index, Random Forest regression, Geographical Detector, taking downtown area Xi'an City, China, as an example, we revealed from 2000 2019 quantified 19 at 30 scales. Results...

The CoCrFeNi2Mox (x = 0, 0.4, 0.5, 1.0, x values in atomic ratio) high-entropy alloy coatings were designed and prepared on the Ti-6Al-4V substrate by laser cladding technology, their microstructures, dry sliding wear resistance studied detail. When < mainly composed of BCC solid solution phase, (Ni, Co)Ti2 α-Ti phase. ≥ new σ phase appeared coatings. As Mo content increases from 0 to hardness showed a trend first increasing then decreasing, especially when coating reached its maximum...

Abstract Understanding transport carbon dioxide (CO 2 ) emission impact factors’ effects is important for the rational planning strategy making in reducing emissions. This study determines heterogeneous and proposes urban strategies typical developing cities. Quantile regression applied to overcome insufficiency of mean avoid biased estimations when outcome variable non-normally distributed heteroscedastic. It found that, from low emitters at 10th quantile high 90th quantile, emissions’...

The unsustainability of China’s agricultural production requires an urgent shift from traditional to more sustainable practices; however, the acceleration thereof remains challenging. New business entities (NABEs) lead modernization and strongly guide application innovative technologies models. Thus, understanding factors that influence NABEs’ adoption intensification practices will promote their widespread adoption. We developed a model based on innovation diffusion theory...

Natural dyes play an important role in sustainable dyeing processes. However, natural yellow with good performance are rare. Traditional have issues, such as a narrow color range and poor light fastness. In this paper, new dye was extracted from low-cost herb Geranium caespitosum L. (G. caespitosum). addition, the composition analyzed using UV-visible spectroscopy. The process of G. on wool fabrics optimized single-factor experiments. Standard fastness tests were conducted to evaluate...

Crop phenology is of critical importance to crop type classification, growth monitoring and yield prediction. Data smoothing an inevitable procedure before extracting from remote sensing data. This paper chose Guanzhong Plain in Shaanxi Province, China as the study area investigate impacts methods on extraction phenology. Results show that double logistic function-fitting better describing overall trend dynamics while Savitzky-Golay filter can retain more details vegetation index time...

How to create a sustainable urban morphology for the development of cities has been an enduring question in research. Therefore, quantitatively measuring current relationship between and function distribution is key step before planning practice. However, existing studies only examine at limited scales or with single unit. To comprehensively understand commercial distribution, this study utilized space syntax point interest (POI) data (shopping food service) took city Xi’an, China as case...

Feature selection and multiple classifier fusion (MCF) are effective approaches to improve land cover classification accuracy. In this study, we combined phenological metrics the MCF method map types in Jiangsu province of China during second crop growing season using moderate resolution imaging spectroradiometer time-series data. Eight were developed calculated, a scheme was proposed by combining simple majority vote measurement posterior probabilities. The four base classifiers (i.e.,...

To address the problems of low productivity and sizeable dispensing positioning errors in manual semi-automatic processes small- medium-sized electronic enterprises, this study proposes a fully automatic method based on visual with RJDNEL-type PCBs as research object. The system is constructed through construction mechanical structure, selection optical equipment, debugging control system. imaging technology. Firstly, area extracted image preprocessing; then, edge detected by Sobel operator,...

Agricultural science and technology parks (ASTPs) represent an important growth pole in China's agricultural modernization. Clarifying their diffusion laws can optimize the technological process improve its efficiency. Our study uses disaggregated spatial information model to analyze ASTP a heterogeneous space. We constructed comprehensive index system evaluate environmental quality introduced equation calculate probability. applied this framework real-world scenario: apple planting of...

Full angular rotational projections cannot always be acquired in tomographic reconstructions because of the limited space experimental setup, leading to `missing wedge' situation. In this paper, a recovering discrete algebraic reconstruction technique algorithm (rmwDART) has been proposed solve problem and improve quality three-dimensional without prior knowledge material component's number or material's values. By using oversegmentation, boundary extraction mathematical morphological...

Residential quarters are a critical component of urban areas, which significantly affects people's health and quality life. In recent decades, the high-density crowded residential have become mainstream organizational model construction in China, because rapid massive urbanization many cities. This results contradiction between eco-environment needs accommodation needs. Therefore, systematic evaluation is urgently needed to address drawbacks current quarters' planning design. paper aims...