نتایج جستجو برای: near iinfrared reflectance spectroscopy nirs

تعداد نتایج: 426725  

2007
Kwan Su Kim Si Hyung Park Myoung Gun Choung Young Seok Jang

Near-infrared spectroscopy (NIRS) was used as a rapid and nondestructive method to determine the fatty acid composition in intact seed samples of rapeseed (Brassica napus L.). A total of 349 samples (about 2 g of intact seeds) were scanned in the reflectance mode of a scanning monochromator, and the reference values for fatty acid composition were measured by gas-liquid chromatography. Calibrat...

Journal: :Advances in experimental medicine and biology 2006
Ilias Tachtsidis Terence S Leung Caroline Oliver Julian R Henty Holly Jones Martin Smith David T Delpy Clare E Elwell

Near-infrared spectroscopy (NIRS) is increasingly used as a non-invasive technique for monitoring cerebral oxygenation and haemodynamics . Simple continuous-wave (CW) NIRS systems utilising differential spectroscopy can measure quantitative changes in oxyand deoxyhaemoglobin (∆[O2Hb], ∆[HHb]) but only from an arbitrary baseline. Numerous studies of changes in cerebral oxygenation and haemodynam...

2012
IFTIKHAR ALI SYED ANWAR SHAH HAFIZ MUNIR AHMED MUMTAZ AHMAD

To optimize the exploitation of plant genetic resources for improvement of oilseed crops in Pakistan, seed quality characterization of germplasm of rapeseed is being executed at Nuclear Institute for Food and Agriculture (NIFA), Peshawar. The aim of this study was to determine the feasibility of using Near Infrared Spectroscopy (NIRS) to identify seed quality traits of oilseed rape germplasm. S...

Journal: :Poultry science 2012
M Tahir M Y Shim N E Ward M O Westerhaus G M Pesti

The purpose of this study was to determine the feasibility of estimating the total and phytate P content of common poultry feed ingredients by near-infrared reflectance spectroscopy (NIRS). Samples of 8 plant-origin feedstuffs were collected from poultry producers in the USA and Canada during the summer of 2009: corn (133), soybean meal (114), corn distillers dried grains with solubles (DDGS; 8...

Journal: :Indonesian Sugar Research Journal 2023

Penentuan karakteristik dan konsentrasi unsur hara tanah perlu dilakukan metode analisa untuk perlakuan lahan serta ketepatan dosis jenis pemupukan dalam optimalisasi produktivitas tanaman. Metode alternatif analisis kandungan sampel secara cepat, efektif, ramah lingkungan, tidak merusak dapat menggunakan near infrared spectroscopy (NIRS). Sampel yang digunakan berasal dari Laboratorium Tanah, ...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
Marco Ferrari Makii Muthalib Valentina Quaresima

This article provides a snapshot of muscle near-infrared spectroscopy (NIRS) at the end of 2010 summarizing the recent literature, offering the present status and perspectives of the NIRS instrumentation and methods, describing the main NIRS studies on skeletal muscle physiology, posing open questions and outlining future directions. So far, different NIRS techniques (e.g. continuous-wave (CW) ...

2015
V. Agostini D. Paradiso F. Molinari D. Rimini M. Knaflitz

Near Infrared Spectroscopy (NIRS) allows for assessing brain hemodynamics non-invasively. In NIRS studies, the maneuver of breath holding is frequently used as an activation of the brain autoregulation response. However, breath holding is not always feasible or effective in the clinical practice. We explored the possibility of using kapalabathi, an ancient yoga respiration technique, as an alte...

Journal: :Jurnal Ilmiah Mahasiswa Pertanian 2021

Abstrak. Minyak nilam merupakan salah satu jenis dari minyak atsiri yang dapat digunakan sebagai bahan baku dalam industri parfum, kosmetik serta untuk pengobatan. mengandung patchouli alkohol yaitu penyusun utama indikator mengetahui kualitas nilam. Tujuan penelitian ini mengkaji kemampuan teknologi near infrared reflectance spectroscopy (NIRS) dengan metode partial least square (PLS) mempredi...

2015
Jingping Xu Xiangyu Liu Jinrui Zhang Zhen Li Xindi Wang Fang Fang Haijing Niu

Functional near-infrared spectroscopy (fNIRS), a promising noninvasive imaging technique, has recently become an increasingly popular tool in resting-state brain functional connectivity (FC) studies. However, the corresponding software packages for FC analysis are still lacking. To facilitate fNIRS-based human functional connectome studies, we developed a MATLAB software package called "functio...

2013
Erick K Towett Merle Alex Keith D Shepherd Severin Polreich Ermias Aynekulu Brigitte L Maass

There is uncertainty on how generally applicable near-infrared reflectance spectroscopy (NIRS) calibrations are across genotypes and environments, and this study tests how well a single calibration performs across a wide range of conditions. We also address the optimization of NIRS to perform the analysis of crude protein (CP) content in a variety of cowpea accessions (n = 561) representing gen...

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