Results 41 to 50 of about 529,607 (296)

Two⁃dimensional correlation infrared spectroscopy and hyperspectral imaging to detect the changes of polysaccharide during the drying process of Polygonatum sibiricum

Shipin yu jixie
ObjectiveTo study the changes of polysaccharide in the drying process of "one steam and one preparation" of Polygonatum sibiricum.MethodsThe slices were steamed by atmospheric pressure water isolation steaming, and then dried by heat pump at 60 ℃.
FU Shuya, XIE Anguo, LIU Yunhong
doaj   +1 more source

Study of Transparency of Pigments to Near Infrared

Proceedings, 2019
We describe the results of a systematic study of reflectance of pigments traditionally used in Mexican cultural treasures on different substrates. We observe that underline drawings may be most easily detected in NIR when the pigment transmissivity in ...
Marija Strojnik, Manuel Bravo-Medina
doaj   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Nondestructive Measurement Method of Leaf Area Index Using Near-infrared Radiation and Photosynthetically Active Radiation Transmitted through a Leafy Vegetable Canopy

HortScience, 2022
Because the leaf area index (LAI) is an essential parameter for understanding the structure and growth status of plant canopies, nondestructive and continuous estimation methods have been required.
Hiromu Yamaguchi, Daisuke Yasutake, Tomoyoshi Hirota, Koichi Nomura   +3 more
doaj   +1 more source

Multifunctional in vivo vascular imaging using near-infrared II fluorescence

, 2012
In vivo real-time epifluorescence imaging of mouse hindlimb vasculatures in the second near-infrared region (NIR-II, 1.1~1.4 microns) is performed using single-walled carbon nanotubes (SWNTs) as fluorophores.
Cooke, John P., Dai, Hongjie, Hong, Guosong, Huang, Ngan F., Lee, Jerry C., Raaz, Uwe, Robinson, Joshua T., Xie, Liming   +7 more
core   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

Nutritional characterization and regional variability of corn grains for monogastric animal feeding in western Romania [PDF]

Food and Feed Research
The objective of this study was to evaluate the nutritional quality and variability of corn grains used in the diet of monogastric animals, with a focus on samples collected from three counties in western Romania: Timiș, Arad, and Caraș-Severin.
Hotea Ionela, Plotuna Ana-Maria, Alda Mihai, Tîrziu Emil   +3 more
doaj   +1 more source

Regulation of Nir gene in Lactobacillus plantarum WU14 mediated by GlnR

Frontiers in Microbiology, 2022
Nitrogen (N) is an essential element in the biosynthesis of key cellular components, such as proteins and nucleic acids, in all living organisms. Nitrite, as a form of nitrogen utilization, is the main nutrient for microbial growth. However, nitrite is a
Hulin Qiu, Xiaoyu Chang, Yan Luo, Fengfei Shen, Aiguo Yin, Aiguo Yin, Tingting Miao, Ying Li, Yunyi Xiao, Jinping Hai, Bo Xu   +10 more
doaj   +1 more source

Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method

, 2009
The detection of planets around very low-mass stars with the radial velocity method is hampered by the fact that these stars are very faint at optical wavelengths where the most high-precision spectrometers operate.
A. Reiners, A. Seifahrt, Allard, Bean, Clough, Clough, Cushing, Delfosse, Hauschildt, Hinkle, J. L. Bean, K. F. Huber, Kerber, Käufl, Mahadevan, Marcy, Martín, Mayor, McLean, McLean, Mohanty, O'Neal, O'Neal, Reiners, Reiners, Reiners, S. Czesla, S. Dreizler, Seifahrt, Strassmeier, Wallace, Wallace, Zapatero-Osorio   +32 more
core   +1 more source

The use of near infrared (NIR) spectroscopy to improve soil mapping at the farm scale [PDF]

, 2008
The creation of fine resolution soil maps is hampered by the increasing costs associated with conventional laboratory analyses of soil. In this study, near infrared (NIR) reflectance spectroscopy was used to reduce the number of conventional soil ...
Stenberg, Bo, Söderström, Mats, Wetterlind, Johanna   +2 more
core   +1 more source