Results 71 to 80 of about 10,081 (210)

Kriging Method Optimization for the Process of DTM Creation Based on Huge Data Sets Obtained from MBESs

Geosciences, 2018
The paper presents an optimized method of digital terrain model (DTM) estimation based on modified kriging interpolation. Many methods are used for digital terrain model creation; the most popular methods are: inverse distance weighing, nearest neighbour,
Maleika Wojciech
doaj   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China 气候变化下中国大兴安岭漠河地区猞猁潜在适宜区的变化

Wildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu, Dan Ju, Hong Chen, Qi Qi, Geng Liu, Shaochun Zhou   +5 more
wiley   +1 more source

Site Characterization Model Using Support Vector Machine and Ordinary Kriging

Journal of Intelligent Systems, 2011
In the present study, ordinary kriging and support vector machine (SVM) have been used to develop three dimensional site characterization model of an alluvial site based on standard penetration test (SPT) results.
Samui Pijush, Das Sarat
doaj   +1 more source

Using Harvest Data to Assess Factors Influencing Regional Population Declines of Muskrats (Ondatra zibethicus) 利用捕获数据评估影响麝鼠 (Ondatra zibethicus) 区域种群数量下降的相关因素

Wildlife Letters, EarlyView.
Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller, Andrea Sylvia, Jesse T. Boulerice, Adam A. Ahlers, Dwayne R. Etter, Eric M. Dunton   +5 more
wiley   +1 more source

Facies-Constrained Kriging Interpolation Method for Parameter Modeling

Remote Sensing
In seismic exploration, establishing a reliable parameter model (such as velocity, density, impedance) is crucial for seismic migration imaging and reservoir characterization.
Zhenbo Nie, Bo Feng, Huazhong Wang, Chengliang Wu, Rongwei Xu, Chao Ning   +5 more
doaj   +1 more source

Regional Prediction of Soil Nutrient Availability and Management Using Portable X‐Ray Fluorescence Spectrometry

X-Ray Spectrometry, EarlyView.
ABSTRACT Portable x‐ray fluorescence (pXRF) spectroscopy has emerged as a rapid and cost‐effective technique for soil elemental analysis; however, its application for predicting available nutrients and supporting agronomic decision making remains insufficiently evaluated under field conditions.
Joao Antonangelo, Deepanjan Mridha, Joaquin Casanova, Surendra Singh, Shikha Singh   +4 more
wiley   +1 more source

Wind farm maintenance optimisation strategy considering MFTS distance‐based K‐medoids clustering and mixed Weibull model

Energy Conversion and Economics, EarlyView.
Abstract This paper proposes a wind‐resource‐weighted maintenance optimization framework to reduce operation and maintenance (O&M) costs and improve power generation efficiency. Existing clustering methods based on single distance metrics cannot fully capture the multidimensional temporal characteristics of wind‐speed data, while single Weibull models ...
Haixin Wang, Rui Zhuang, Junyou Yang, Mingchao Xia, Qifang Chen, Yubin Wang, Gang Zhao, Minghang Cao, Sharara Rehimi, Hassan Bevrani, Dan Doru Micu, Jingtao Zhao   +11 more
wiley   +1 more source

Subsurface Geological Profile Interpolation Using a Fractional Kriging Method Enhanced by Random Forest Regression

Fractal and Fractional
Analyzing geological profiles is of great importance for various applications such as natural resource management, environmental assessment, and mining engineering projects.
Qile Ding, Yiren Wang, Yu Zheng, Fengyang Wang, Shudong Zhou, Donghui Pan, Yuchun Xiong, Yi Zhang   +7 more
doaj   +1 more source

Complementary root and mycorrhizal foraging strategies for phosphorus acquisition among arbuscular and ectomycorrhizal trees in a subtropical forest

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Phosphorus (P) availability is widely recognized as an important constraint on plant growth in many subtropical forest ecosystems, yet how contrasting mycorrhizal strategies mediate the use of inorganic and organic P forms remains unclear.
Yuanzhi Yang, Qiuyue Gong, Ganxin Feng, Yuke Li, Jieyi Liu, Xiangyang Liang, Xuelian Tan, Xubing Liu, Dong Dai, Minxia Liang   +9 more
wiley   +1 more source

Thermo-fluid dynamic design optimization of a concentric tube heat exchanger

Journal of Fluid Science and Technology, 2019
This study proposes a shape optimization approach for the cross-sectional shape of the inner pipe of a counterflow concentric tube heat exchanger. The cross-sectional shape of the inner pipe is expressed by an algebraic expression with a small number of ...
Tomohiro HIRANO, Mitsuo YOSHIMURA, Koji SHIMOYAMA, Atsuki KOMIYA   +3 more
doaj   +1 more source