نتایج جستجو برای: portable nir

تعداد نتایج: 44380  

Journal: :Processes 2023

A methodology such as near-infrared (NIR) spectroscopy, which enables in situ and real-time analysis, is crucial to perform quality control of biodiesel, since it blended into diesel fuel the presence contaminants can hinder its performance. This work aimed compare performance a benchtop Fourier Transform (FT) NIR spectrometer with prototype portable, miniaturized (miniNIR) detect quantify biod...

2012
Xiaofei An Minzan Li Lihua Zheng Yumeng Liu Yajing Zhang

The measurement and control of soil moisture are the key technologies of precision agriculture. In order to real-time detect soil moisture content faster and more accurately, a portable soil moisture sensor based on NIR spectroscopy was developed. With the sixty soil samples collected from a winter jujube orchard, a linear regression model was established. The determination coefficients of the ...

Journal: :Processes 2023

Reliable and user-friendly discrimination of coffee bean integrity quantification adulteration in the processing value chain would be vital for ensuring consumer trust quality control traceability management. In this research, a portable short-wave NIR spectroscopy coupled with chemometric data analysis was employed under different pre-treatments to develop rapid detection technique. Different ...

2017
Hui Xiao Ke Sun Ye Sun Kangli Wei Kang Tu Leiqing Pan

Near-infrared (NIR) spectroscopy was applied for the determination of total soluble solid contents (SSC) of single Ruby Seedless grape berries using both benchtop Fourier transform (VECTOR 22/N) and portable grating scanning (SupNIR-1500) spectrometers in this study. The results showed that the best SSC prediction was obtained by VECTOR 22/N in the range of 12,000 to 4000 cm-1 (833-2500 nm) for...

2012
SAFWAN M. OBEIDAT

In this study, three common drugs (Cipram®, Panadol extra ®, Xenical®) were investigated. The study involved analyzing the above drugs using the portable NIR spectroscopy. Ten adulterated tablets of each of the above drugs were tested along with ten genuine tablets and other ten placebo tablets which represents another adulterated source for all drugs. Chemometrical Algorithms like Principal Co...

Journal: :Spectroscopy 2022

Near-infrared (NIR) spectroscopy is widely used for the classification of materials and quantification their properties. Today, there a high demand extending use this technique to portable applications, eventually, integration with consumer appliances smartphones. To reach goal, overall size NIR sensor, its production cost, robustness, resistance vibrations are particular importance. This paper...

Journal: :Frontiers in analytical science 2023

Over the years, technology has allowed more accurate, effective, and prompt food integrity assessments to assure quality authenticity of material. Thanks development portable hand-held near infrared (NIR) as a rapid, reliable, non-destructive, user-friendly instrument, on-site analysis is provided with feasibility. However, miniaturized NIR devices have some significant challenges due presence ...

2004
Chi-Leung So Stan T. Lebow Leslie H. Groom Todd F. Shupe

In this research we experimented with a new and rapid way of analyzing wood. Near Infrared (NIR) spectroscopy together with multivariate analysis is becoming a widely used technique in the field of forest products especially for property determination and is already firmly established in the pulp and paper industry. This method is ideal for the chemical analysis of wood, and therefore preservat...

Journal: :Sensors 2016
Salvador Gutiérrez Javier Tardáguila Juan Fernández-Novales María-Paz Diago

Plant phenotyping is a very important topic in agriculture. In this context, data mining strategies may be applied to agricultural data retrieved with new non-invasive devices, with the aim of yielding useful, reliable and objective information. This work presents some applications of machine learning algorithms along with in-field acquired NIR spectral data for plant phenotyping in viticulture...

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