Subjects -> INSTRUMENTS (Total: 63 journals)
Showing 1 - 16 of 16 Journals sorted alphabetically
Applied Mechanics Reviews     Full-text available via subscription   (Followers: 27)
Computational Visual Media     Open Access   (Followers: 5)
Devices and Methods of Measurements     Open Access  
Documenta & Instrumenta - Documenta et Instrumenta     Open Access  
EPJ Techniques and Instrumentation     Open Access  
European Journal of Remote Sensing     Open Access   (Followers: 18)
Experimental Astronomy     Hybrid Journal   (Followers: 38)
Flow Measurement and Instrumentation     Hybrid Journal   (Followers: 15)
Geoscientific Instrumentation, Methods and Data Systems     Open Access   (Followers: 2)
Geoscientific Instrumentation, Methods and Data Systems Discussions     Open Access   (Followers: 1)
IEEE Journal on Miniaturization for Air and Space Systems     Hybrid Journal   (Followers: 2)
IEEE Sensors Journal     Hybrid Journal   (Followers: 107)
IEEE Sensors Letters     Hybrid Journal   (Followers: 4)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Imaging & Microscopy     Hybrid Journal   (Followers: 7)
InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan     Open Access  
Instrumentation Science & Technology     Hybrid Journal   (Followers: 7)
Instruments and Experimental Techniques     Hybrid Journal   (Followers: 1)
International Journal of Applied Mechanics     Hybrid Journal   (Followers: 8)
International Journal of Instrumentation Science     Open Access   (Followers: 41)
International Journal of Measurement Technologies and Instrumentation Engineering     Full-text available via subscription   (Followers: 1)
International Journal of Metrology and Quality Engineering     Full-text available via subscription   (Followers: 6)
International Journal of Remote Sensing     Hybrid Journal   (Followers: 144)
International Journal of Remote Sensing Applications     Open Access   (Followers: 49)
International Journal of Sensor Networks     Hybrid Journal   (Followers: 2)
International Journal of Testing     Hybrid Journal   (Followers: 1)
Invention Disclosure     Open Access   (Followers: 1)
Journal of Astronomical Instrumentation     Open Access   (Followers: 3)
Journal of Instrumentation     Hybrid Journal   (Followers: 31)
Journal of Instrumentation Technology & Innovations     Full-text available via subscription   (Followers: 2)
Journal of Medical Devices     Full-text available via subscription   (Followers: 4)
Journal of Medical Signals and Sensors     Open Access   (Followers: 1)
Journal of Optical Technology     Full-text available via subscription   (Followers: 4)
Journal of Research of NIST     Open Access   (Followers: 1)
Journal of Sensors and Sensor Systems     Open Access   (Followers: 12)
Journal of Vacuum Science & Technology B     Hybrid Journal   (Followers: 1)
Jurnal Informatika Upgris     Open Access  
Measurement : Sensors     Open Access   (Followers: 5)
Measurement and Control     Open Access   (Followers: 36)
Measurement Instruments for the Social Sciences     Open Access  
Measurement Techniques     Hybrid Journal   (Followers: 3)
Medical Devices & Sensors     Hybrid Journal   (Followers: 1)
Metrology and Instruments / Метрологія та прилади     Open Access  
Metrology and Measurement Systems     Open Access   (Followers: 8)
Microscopy     Hybrid Journal   (Followers: 7)
Modern Instrumentation     Open Access   (Followers: 57)
Optoelectronics, Instrumentation and Data Processing     Hybrid Journal   (Followers: 4)
PFG : Journal of Photogrammetry, Remote Sensing and Geoinformation Science     Hybrid Journal   (Followers: 4)
Photogrammetric Engineering & Remote Sensing     Full-text available via subscription   (Followers: 32)
Remote Sensing     Open Access   (Followers: 57)
Remote Sensing Applications : Society and Environment     Full-text available via subscription   (Followers: 9)
Remote Sensing of Environment     Hybrid Journal   (Followers: 94)
Remote Sensing Science     Open Access   (Followers: 30)
Review of Scientific Instruments     Hybrid Journal   (Followers: 20)
Science of Remote Sensing     Open Access   (Followers: 7)
Sensors International     Open Access   (Followers: 3)
Solid State Nuclear Magnetic Resonance     Hybrid Journal   (Followers: 3)
Standards     Open Access  
Transactions of the Institute of Measurement and Control     Hybrid Journal   (Followers: 12)
Videoscopy     Full-text available via subscription   (Followers: 4)
Труды СПИИРАН     Open Access  
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Remote Sensing Science
Number of Followers: 30  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2329-8138 - ISSN (Online) 2329-8146
Published by Ivy Publisher Homepage  [24 journals]
  • Hyperspectral Estimation of Total Nitrogen Content in Orchard Soil Based
           on Successive Projections Algorithm

    • Abstract: Hyperspectral Estimation of Total Nitrogen Content in Orchard Soil Based on Successive Projections Algorithm
      Pages 1-11
      Author Zizhen LiXicun ZhuZhongyu TianMeixuan LiYufeng PengXinyang YuXueyuan BaiLing WangYuanmao Jian
      Soil total nitrogen content is an important factor to affect the growth of fruit trees. The objective of the paper is to propose a successive projections algorithm for hyperspectral estimation of soil total nitrogen content in orchard. A total of 60 soil samples were collected from apple orchard, Guanli Town, Qixia City, Shandong Province. The spectral reflectivity of the samples was measured by a ASD Field-Spce4.0 spectrometer in the laboratory. The total nitrogen content of the samples was measured by a Kjeldahl apparatus. The spectral data were preprocessed by Savitzky-Golay smoothing and first-order derivative transformation. The sensitive bands were screened by successive projections algorithm. Partial least squares regression (PLSR) model, random forest (RF) model and support vector machine regression (SVR) model were established respectively, and the accuracy of the models was tested and compared. The sensitive wavelengths selected by successive projections algorithm were 849, 2100, 1305 and 2427nm, the determination coefficients (R2) of PLSR, SVR and RF models were 0.822, 0.724 and 0.683, and the relative percent deviation (RPD) were 2.329, 1.940 and 1.702, respectively. PLSR model has the highest accuracy and can play a good role in the estimation of total nitrogen content in orchard soil; the accuracy of SVR and RF models is lower than that of PLSR models, but the estimated results reach the usable level.
      PubDate: 2021-0
       
 
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