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مدل‌سازی رقومی جزء شن خاک با داده‌های ابرطیفی [PDF]

پژوهش‌های حفاظت آب و خاک, 2021
سابقه و هدف: جزء شن از مهمترین اجزای بافت خاک بوده که برای عملیات مدل‌سازی زیست‌محیطی و پهنه‌بندی رقومی خاک، باید مورد توجه واقع شود. از طرفی، بدلیل تغییرپذیری مکانی این جزء؛ تشخیص، پهنه‌بندی و پایش آن، در مقیاس‌های وسیع، با استفاده از شیوه‌های سنتی رایج
مجید دانش, حسینعلی بهرامی   +1 more
doaj   +1 more source

Detection of encapsulant addition in butterfly-pea (Clitoria ternatea L.) extract powder using visible–near-infrared spectroscopy and chemometrics analysis

Open Agriculture, 2022
Butterfly-pea (Clitoria ternatea L.) extract powder is a functional product with numerous benefits obtained by extraction followed by the drying process.
Rahmawati Laila, Pahlawan Muhammad Fahri Reza, Hariadi Hari, Masithoh Rudiati Evi   +3 more
doaj   +1 more source

A PLSR model to predict soil salinity using Sentinel-2 MSI data

Open Geosciences, 2021
Salinization is one of the most widespread environmental threats in arid and semi-arid regions that occur either naturally or artificially within the soil. When exceeding the thresholds, salinity becomes a severe danger, damaging agricultural production,
Sahbeni Ghada
doaj   +1 more source

Investigation of a Medical Plant for Hepatic Diseases with Secoiridoids Using HPLC and FT-IR Spectroscopy for a Case of Gentiana rigescens

Molecules, 2020
Secoiridoids could be used as a potential new drug for the treatment of hepatic disease. The content of secoiridoids of G. rigescens varied in different geographical origins and parts.
Yuangui Yang, Yanli Zhao, Zhitian Zuo, Ji Zhang, Yao Shi, Yuanzhong Wang   +5 more
doaj   +1 more source

Pendugaan Kadar Patchouli Alkohol Pada Minyak Nilam Variasi Menggunakan Teknologi Near Infrared Reflectance Spectroscopy Dengan Metode Partial Least Square Regression

Rona Teknik Pertanian, 2023
Abstrak.  Minyak nilam merupakah salah satu minyak atsiri yang menyumbangkan devisa bagi negara. Komponen utama dalam minyak adalah Patchouli Alkohol (PA). Salah satu parameter yang menentukan kualitas minyak nilam adalah kadar PA.
Risqa Mutha Dina, Farah Cikita Safliany, Al Thahyat Nur, Hagi Al-Annari, Dwipa Aby Ananta, Zulfahrizal Zulfahrizal   +5 more
doaj   +1 more source

Inversion of Mangrove Canopy Leaf Functional Traits on the Qi'ao Island Based on UAV Hyperspectral Remote Sensing

Redai dili, 2023
Quantitative studies of mangrove leaf functional traits will help us understand the adaptive evolutionary strategies of mangrove plants and the relationship between mangrove biodiversity and ecosystem functions.
Wang Meng, Sun Zhengzheng, He Zhidong, Wang Zhihui, Geng Shoubao, Zhao Xinfeng, Yang Long, Sun Zhongyu   +7 more
doaj   +1 more source

Three-Phase-Based Approach to Develop a River Health Prediction and Early Warning System to Guide River Management

Applied Sciences, 2019
To effectively manage a river system, systematic tracking and diagnosing the change and risks of a river system are essentially required to efficiently conserve or restore its conditions.
Yongming Chen, Jihong Xia, Wangwei Cai, Zhilin Sun, Chuanbing Dou   +4 more
doaj   +1 more source

Evaluating and Predicting the Effects of Land Use Changes on Hydrology in Wami River Basin, Tanzania

Hydrology, 2020
Understanding the variation in the hydrological response of a basin associated with land use changes is essential for developing management strategies for water resources.
Sekela Twisa, Shija Kazumba, Mathew Kurian, Manfred F. Buchroithner   +3 more
doaj   +1 more source

Using Field Spectroradiometer to Estimate the Leaf N/P Ratio of Mixed Forest in a Karst Area of Southern China: A Combined Model to Overcome Overfitting

Remote Sensing, 2021
The ratio between nitrogen and phosphorus (N/P) in plant leaves has been widely used to assess the availability of nutrients. However, it is challenging to rapidly and accurately estimate the leaf N/P ratio, especially for mixed forest. In this study, we
Wen He, Yanqiong Li, Jinye Wang, Yuefeng Yao, Ling Yu, Daxing Gu, Longkang Ni   +6 more
doaj   +1 more source

Fusion of Mid-Wave Infrared and Long-Wave Infrared Reflectance Spectra for Quantitative Analysis of Minerals

Sensors, 2020
Accurate quantitative mineralogical data has significant implications in mining operations. However, quantitative analysis of minerals is challenging for most of the sensor outputs. Thus, it requires advances in data analytics.
Feven Desta, Mike Buxton, Jeroen Jansen
doaj   +1 more source