The recognition and suppression of small features from solid B-rep models plays an important role in effectively generating the qualified mesh for analysis. This paper presents automatic algorithm recognizing depression purpose generation. innovation lies capability filleted or chamfered feature. Results a software implementation same are demonstrated with comprehensive suitable example.

Competition among trees for limited resources (e.g., sunlight, water, and nutrients) impacts their growth differently. Crown plays a crucial role in resource access trees. However, uncertainties persist regarding crown size differences, tree growth, competition levels between coniferous broadleaf mixed-age forests. We conducted study on 3008 live across 28 plots Hunan Province to measure individual increment. Introducing new metric, the Size Index (CSCI), we assessed pressure species...

The spectral reflectance provides valuable information regarding vegetation growth and plays an important role in agriculture, forestry, grassland management. In this study, a small, portable canopy (VCR) sensor that can operate throughout the day was developed. includes two optical bands at 710 nm 870 nm, with light separated by filters, has field of view 28°. It is powered 14500 rechargeable batteries uses Wi-Fi for data transmission. calibration performed using integrating sphere, solar...

Weak-to-Strong Generalization (W2SG), where a weak model supervises stronger one, serves as an important analogy for understanding how humans might guide superhuman intelligence in the future. Promising empirical results revealed that strong can surpass its supervisor. While recent work has offered theoretical insights into this phenomenon, clear of interactions between and models drive W2SG remains elusive. We investigate through lens show it be characterized using kernels derived from...

Accurately mapping urban vegetation carbon density is challenging because of complex landscapes and mixed pixels. In this study, a novel methodology was proposed that combines linear spectral unmixing analysis (LSUA) with stepwise regression (LSR), logistic model-based (LMSR) k-Nearest Neighbors (kNN), to map the forest Shenzhen City China, using Landsat 8 imagery sample plot data collected in 2014. The independent variables contributed statistically significantly improving fit model...

Land degradation and desertification in arid semi-arid areas is of great concern. Accurately mapping percentage vegetation cover (PVC) the critical but challenging because are often remote, sparsely vegetated, rarely populated, it difficult to collect field observations PVC. Traditional methods such as regression modeling cannot provide accurate predictions PVC areas. Nonparametric constant k-nearest neighbors (Cons_kNN) has been widely used estimation forest parameters a good alternative...

Understanding nutrient quantity and quality in forest soils is important for sustainable management of resources maintaining ecosystem services. In this study, six soil indicators, including organic matter (SOM), total nitrogen (TN), phosphorus (TP), available (AN), (AP), potassium (AK) were measured five different aged stands Chinese fir forests subtropical China. A structural equation model (SEM) was developed based on these nutrients indicators order to better evaluate the fertility index...

A novel silicon-based inductor, power inductor in silicon (PIiS) has been proposed and experimentally demonstrated. The PIiS is fabricated at wafer level using a silicon-molding micromachining technique which 200-μm-thick copper windings are embedded into substrate both sides of the capped with polymer-magnetic composite. Through-silicon vias (TSVs) routings also added so that can be directly used as surface-mountable packaging substrate. 3 ×3 ×0.6 mm <sup...

Forest stand structure (the characteristics and interrelationships of live trees) site conditions physical environmental a specific location) have been linked to forest regeneration, nutrient cycling, wildlife habitat, climate regulation. While the effects (i.e., spatial non-spatial) on single function Cunninghamia lanceolata Phoebe bournei (CLPB) mixed studied in previous studies, relative importance terms productivity, species diversity, carbon sequestration remains unresolved. In this...

This paper proposed a fall detection system based on point cloud. Kinect is used to get the depth data of living environment human body, drawing pixels in real space coordinates through mapping depth, height change acceleration cloud gained are determine potential activity.The Arduino microprocessor handles receiving time and notifies guardian GSM module. The experimental results showed that capable precisely realizing effective recognition alarm for falling action timely response has high...

Human activities and climate change have resulted in an increasing fragmentation of forest landscapes, the conflict between biodiversity protection economic development has become more pronounced. The establishment ecological networks can be a vital part conservation sustainable development. Using Jindong Forest Farm as study area, this combines suitability index, morphological spatial pattern analysis, area method, landscape connectivity index (PC, IIC). This will identify source areas...

The spatial structure of forest stands significantly influences inter-tree competition and the overall stability stand’s ecological dynamics, a profound understanding stand is essential for both effective management research. Previous studies on have primarily employed single variables, offering only one-dimensional structural insights lacking capacity to interpret multidimensional information. In light these limitations, our study introduces novel approach founded six-variable distribution,...

Combining forest inventory plot and Landsat Thematic Mapper (TM) data has been widely used for mapping carbon. However, uncertainty analysis is a great challenge. This study investigated the uncertainties of scaling up aboveground carbon (AGFC) due to location errors in Wu-Yuan East China. Plot were simulated by randomly perturbing each with eleven different distances that varied from 5 8000 m. Given perturbed distance (PD) such as 100 m, map was created combining TM spatial resolution 28.5...

Wireless propagation models play a significant role in the deployments of base stations that are used to reference signal receiving power (RSRP) receivers cell. However, existing predict RSRP one receiver point cell at time, which cannot be generalized other cells. Motivated by this, cell-level estimation method is proposed directly whole-cell converting into an image-to-image translation. First, environment map each and measured for transformed image. Second, wireless model based on...

A novel silicon-based inductor, power inductor in silicon, or PIiS, has been proposed and experimentally demonstrated. The PIiS is fabricated at wafer level using a silicon molding micromachining technique, which 200 ¿m thick copper windings are embedded into substrate both sides of the capped with polymer-magnetic composite. Through-silicon vias (TSVs) routings also added so that can be directly used as surface mountable packaging substrate. 3 × 0.6 mm <sup...

Compared with airborne laser scanning, terrestrial scanning (TLS) offers ground-based point cloud data of trees and provides greater potential to accurately estimate tree stand parameters. However, there is a lack effective methods identify locations individual from TLS data. It also unknown whether the estimation accuracy parameters, including height (H), diameter at breast (DBH), so on, using can meet requirement forest management planning. In this letter, novel method effectively process...

This article presents an energy-efficient BJT-based temperature sensor. The output of sensing front-ends is modulated by employing incremental Δ-Σ ADC as a readout interface. cascoded floating-inverter-based dynamic amplifier (FIA) used the integrator instead conventional operational transconductance (OTA) to achieve low power consumption. To enhance accuracy, chopping and element matching (DEM) are applied eliminate component mismatch error while β-compensation resistor optimized bias...

Improving connectivity is the most commonly used approach employed in biodiversity conservation to mitigate habitat fragmentation. Graph-based networks relying on species-oriented definitions of nodes and edges are powerful tools for evaluating landscape connectivity. However, few studies have examined effects seasonal variation uncertainty parameterization suitability identification priority sites. Here, a combination index, morphological spatial pattern analysis (MSPA), graph-network were...