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Hashtag
#nir
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Italy vs Northern Ireland: Not A Cakewalk
#ITA #WorldCup26 #NIR #FIFA
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Abstract: Butterfly wings exhibit optical phenomena resulting from pigments as well as from intricate nanostructures of the scales that plays an important role in their ecology mainly, communication, thermoregulation as well as mating. In our study, we examined the optical behavior of butterfly wing scales by analyzing their percent reflectance, absorbance, percent transmittance, and effective refractive index using ultraviolet–visible near-infrared (UV–Vis-NIR) spectroscopy which is a valuable analytical technique that provide details of the optical properties of materials. In the study conducted with 10 butterflies, the UV, visible, and NIR regions are highlighted to determine the optical properties of butterflies. From the study, it is explored that the UV region exhibit major absorbance, the visible region exhibits major reflectance, and infrared regions exhibit minor reflectance. Optical parameters other than reflectance and absorbance are derived from the spectroscopic data and plotted using Origin software. The percent reflectance, absorbance, percent transmittance, effective refractive index, and their respective wavelength of butterflies studied vary across species. Ariadne merione is observed to have the highest percent reflectance and the lowest is observed in the Eurema hecabe. The overall percentage of reflectance observed in the study ranges between 46%–68%. The absorbance is observed highest for Parantica aglea and lowest for Ypthima huebneri with optimum absorbance ranging between 1.23–0.82. The highest transmittance percentage is observed for Tirumala septentrionis, and the lowest value is observed in Mycalesis mineus and E. hecabe with optimum transmittance ranging between 63% to 47%, respectively. The refractive index was analyzed using the Fresnel equation, followed by an empirical Cauchy dispersion fit to characterize its wavelength dependence. The results revealed unusually high refractive index values for a biological specimen, indicating an effective refractive index behavior influenced by structural, pigmentation and optical complexity rather than representing the intrinsic material refractive index. This study is the first record on comprehensively determining the optical properties of Indian butterflies especially effective refractive index using UV–Vis-NIR spectroscopy.
New from Applied Spectroscopy!
Analysis of the Optical Properties of Butterflies Using Ultraviolet–Visible Near-Infrared Spectroscopy
Read more: https://doi.org/10.1177/00037028251397426
#SAS #Spectroscopy #UVVis #NIR #Butterfly #wing #refractive #index
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新技術を搭載！ステラボーテが誇る家庭用美顔器「IPL&NIR光美容器 PRO」を発表 #NIR #ステラボーテ #IPL
STELLA BEAUTEが新たに発表した美顔器「IPL&NIR光美容器 PRO」は、ムダ毛ケアと美肌ケアを同時に可能にする革新的なアイテムです。今回のモデルではNIR技術を採用し、安全で快適なホームケアを実現しています。
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🔬 Touring the Cannabis Biology and Cultivation Systems research facilities.
🫡 Thanks, Valenveras and Buchi, for the inputs and ideas to improve our scientific setup.
#plantbiology #horticulture #NIR #thisissiu
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Abstract: Soil reflectance spectroscopy is a powerful tool for rapid, non-destructive assessment of soil properties and the foundation for data-driven soil science applications. However, systematic discrepancies during routine spectral measurement procedures, particularly those arising from contamination or deterioration of white reference (WR) calibration panels, may compromise spectral data stability and hinder harmonization practices across laboratories. This study investigates the impact of using a non-contaminated WR panel as a calibration target to measure soil reflectance across the visible (Vis), near-infrared (NIR), and short-wavelength infrared (SWIR) spectral regions. The study evaluates the effectiveness of an internal soil standard (ISS) Lucky Bay sand to correct discrepancies within a controlled laboratory setting. Twelve soils from the Israeli Legacy Soil Spectral Library were analyzed using a contact-probe setup that was calibrated with both a clean and a contaminated WR. The spectral correction method, based on IEEE P4005 protocols and the ISS calibration, significantly reduced spectral inconsistencies, especially in the Vis region where contamination effects were most pronounced. Results show that the ISS effectively harmonized spectra acquired under different WR conditions, reducing the modified average spectral difference stability (mASDS) measure across all samples. While ISS correction is commonly employed for cross-laboratory harmonization, our findings highlight its critical role in enhancing intra-laboratory consistency under routine operational variability. We recommend that every WR calibration process will be accompanied with ISS measurements. The continuous use of a well-maintained WR and ISS improves the reliability of soil spectral datasets and supports the long-term harmonization of soil spectral libraries.
New from Applied Spectroscopy!
Mitigating Spectral Errors from White Reference Degradation in Soil Spectroscopy
Read more: https://doi.org/10.1177/00037028251396975
#SAS #Spectroscopy #NIR #SWIR #reflectance $soil
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Кое-что новое про цианобактерии (цианобактерии и ближний инфракрасный свет; заголовок неоправдано нью-васюковский): https://www.bbc.com/russian/articles/cz7gre32731o #cyanobacteria #speleology #NIR #scipop
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🙌🏻 Honored to welcome Ruben Valenzuela and Marçal Plans to HORT 481 - Cannabis Production to showcase their NIR-based cannabinoid analysis technology.
#NIR #plantbiology #horticulture
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They are in town! See you today at 10:00 am in the Ag Building 102 - Muckelroy Auditorium.
#NIR #cannabinoids #plantbiology #horticulture
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📅 TOMORROW!
📍 See you on Monday (March/2) at 10:00 am in the Ag Building 102 - Muckelroy Auditorium.
😎 Let's gooo!
#plantbiology #NIR #horticulture
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🇪🇸 Ruben Valenzuela, CEO of Valenveras, and Marcal Plans, Head of Global NIR Applications at Buchi, will be visiting the SIU campus to discuss the ins and outs of the NIR cannabinoid and terpene non-destructive analyzer, a game-changer in the cannabis industry.
#plantbiology #NIR
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A Irish Rail intercity railcar sits in the platform of Belfast Grand Central station. The tail lights are on & the destination board is showing "Dublin Connolly". The train is mostly silver with a bit of emerald green along the front edge, coming from top to bottom. The train has a yellow panel on the front. It has a dark blue door with a white bicycle for designated bicycle area. The train is missing a airhorn cover on the bottom right corner. The platform has no people. In the background on the far right side is a Northern Ireland Railways class 3000 railcar. It is mostly dark blue with a sliver bottom & has a yellow oval on the front. It too has it's taillights on. In the background on the far left side is grey skies peeking out from the stations canopy. Both trains are sitting under a canopy.
An Iarnród Éireann Hyundai Rotem Class 22000 ICR, 22336, in the platform of Mórstáisiún Lárnach Bhéal Feirste (Belfast Grand Central) awaiting departure to Stáisiún Uí Chonghaile (Dublin Connolly).
25012026
#Train #Railway #Railcar #Belfast #Ireland #NorthernIreland #IrishRail #NIR #Enterprise
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医薬品業界に革命をもたらす透過型NIR検査装置の新登場 #品質管理 #NIR #錠剤
アンリツ株式会社が開発した世界初の透過型NIR技術を用いた錠剤全数検査装置「Ariphas®」が、2026年2月より販売開始。品質管理の新時代が到来！
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Abstract: In the post-fire stage, precipitation and superficial incorporation of ashes alter the chemical properties of the soil. This study evaluated the combined effects of spectral preprocessing methods, data partitioning strategies, and modeling approaches on soil pH prediction using a portable near-infrared (NIR) spectrometer in wildfire ash-enriched soil. A laboratory column experiment was conducted using disturbed sandy loam soil, in which wildfire ashes were incorporated. The experimental design considered five treatments (n = 3) of Eucalyptus globulus and Quillaja saponaria ash incorporations (C: no ash; T1: 2% ash at 2.5 cm; T2: 2% ash at 5 cm; T3: 4% ash at 2.5 cm; T4: 4% ash at 5 cm). After simulating a precipitation of 20 mm h–1 for 6 hours, the soil columns were sampled at 5 depths (D1: 2–3 cm, D2: 7–8 cm, D3: 12–13 cm, D4: 16–17 cm, D5: 20–21 cm). The samples were analyzed using a NIR spectrometer (range: 1350–2550 nm), and the levels of pH (1:2.5) were determined in the laboratory. Eight preprocessing techniques (P0 to P7) were tested, including absorbance conversion, mean centering, trimming, smoothing, standard normal variate (SNV), moving window average (MWA), Savitzky–Golay filtering, and first derivative transformation. Using the Kennard–Stone method, 70% of the data was used for calibration (CAL) and 30% for validation (VAL), considering two partitioning approaches, the same partition by pseudo absorbance values (Scenario A) and different partitions by preprocessing method (Scenario B). Partial least square (PLS) and random forest (RF) models were applied, and performance was assessed using root mean square error (RMSE), coefficient of determination (r2), and ratio of performance to interquartile distance (RPIQ) analyses. The most accurate pH predictions were achieved with RF under Scenario B using trimming + standard normal variate (SNV) + moving weighted average (MWA) preprocessing, yielding r2 values of 0.95 (CAL) and 0.91 (VAL), with RMSEs of 0.23 (CAL) and 0.57 (VAL), and RPIQs of 4.33 (CAL) and 4.61 (VAL). Overall, portable NIR spectroscopy demonstrated strong potential for soil pH prediction in ash-enriched soil, emphasizing the critical role of appropriate spectral preprocessing to avoid overfitting. These findings provide insights into applying portable NIR spectroscopy as a cost-effective tool for monitoring soil pH following wildfires.
New from Applied Spectroscopy!
Prediction of Soil pH in Ash-Enriched Laboratory Columns Using Portable Near-Infrared Spectroscopy: A Comparison of Analytical Strategies
Read more: https://doi.org/10.1177/00037028251385574
#SAS #Spectroscopy #NIR #soil #pH #wildfires #ash
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Drumquin residents voice strong opposition to proposed wind farm developments #NIR: Residents of Drumquin have raised growing concerns over plans for a series of new wind farm developments which they say could dramatically alter the character, landscape and quality of life in… #windpower #windenergy
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Drumquin residents voice strong opposition to proposed wind farm developments #NIR: Residents of Drumquin have raised growing concerns over plans for a series of new wind farm developments which they say could dramatically alter the character, landscape and […]
[Original post on mstdn.social]
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better-experience.blogspot.com/2026/01/95-d...
#SPYTICE
multi-search-tag-explorer.headlines-world.com/advanced-sea...
#ONYX HIPHOPOVÁ #SKUPINA
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#NIR #BARKAT
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aepiot.com
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Abstract: Currently, there is increasing interest in identifying the mechanistic characteristics of the α-synuclein amyloid protein aggregation during its early stages. The initiation of amyloid protein incubation was investigated by applying the concepts of hydrophobic hydration in the early-formed protein aggregates and the light transport in the protein samples by using near-infrared light. These are unexplored concepts in amyloid protein aggregation research. Early-formed protein aggregates develop solvent-exposed hydrophobic residue segments, and intramolecular and intermolecular interactions can be identified by hydrophobic hydration, while consecutive intramolecular interactions can cancel this effect. In the light transport within protein samples, at low protein concentrations, the early-formed protein aggregates achieve stability, whereas at higher concentrations, such as those found in neuronal synapses (∼50 µM), the early-formed aggregates continue to develop.
New from Applied Spectroscopy!
Hydrophobic Hydration and Light Transport in α-Synuclein Protein Solutions in the Near-Infrared
Read more: https://doi.org/10.1177/00037028251367004
#SAS #Spectroscopy #NIR #protein #aggregation #amyloid #UVVis
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Significado de #nir palabra corta y confusa que suena a sigla o concepto técnico, etimología dudosa quizá acrónimo moderno.. nir
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Significado de #nir uma palavra curta e confusa que soa como um acrônimo ou conceito técnico, uma etimologia duvidosa, talvez uma sigla moderna.. nir
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Meaning of #nir a short and confusing word that sounds like an acronym or technical concept, a dubious etymology perhaps a modern acronym.. nir
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🚀 Nikon Spatial Array Confocal #NSPARC is a sensitive detector in near-infra red #NIR too!
👉 Learn more about the NIR option here: https://bit.ly/48U7crk
Sample: Cell 4C NIR from Gattaquant - DAPI (light blue), TOMM20 AF488 (yellow), Actin AF647 (indigo), Tubulin AF750 (magenta)
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(archive: 2017) Wind farms and groundwater impacts: A practice guide to EIA and Planning considerations #NIR: What impact can a wind farm have on groundwater? The development of a wind farm has the potential to impact on groundwater quality, groundwater quantity […]
[Original post on mstdn.social]
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(archive: 2017) Wind farms and groundwater impacts: A practice guide to EIA and Planning considerations #NIR: What impact can a wind farm have on groundwater? The development of a wind farm has the potential to impact on groundwater quality, groundwater quantity and/or the… #windpower #windenergy
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Abstract This study proposes a method to remove background pixels from near-infrared hyperspectral images based on the pixel-wise standard deviation of reflectance method (px-wise SD method). This method calculates the standard deviation (SD) of reflectance in each pixel, namely each spectrum, and determines a threshold to distinguish between background and object pixels from the resulting histogram of the px-wise SD. The method effectiveness is evaluated using hyperspectral images of a leaf-like pastry with a hole placed on either a low-reflectance sheet or white paper. On white paper, the px-wise SD of reflectance exhibits a trimodal histogram with two prominent peaks and one small peak between them. The prominent peak with a lower SD corresponds to the white paper pixels, whereas the other peak with a higher SD is associated with the surface and edge pixels of the pastry. The small peak represents the pixels of the hole. The background and object pixels can be effectively separated by setting a threshold between this small peak and the prominent peak for the pastry pixels. Moreover, the mean spectrum calculated using only object pixels remains consistent, regardless of the type of background material. Conversely, the mean spectrum calculated using all pixels is distorted due to the spectral inclusion of the background material.
New from Applied Spectroscopy!
Background Pixel Removal for Near-Infrared Hyperspectral Images Based on the Pixel-Wise Standard Deviation of Reflectance
Read Open Access 🔓: https://doi.org/10.1177/00037028251368377
#SAS #Spectroscopy #NIR #hyperspectral #image #remove #background #pixels
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Key insights:
✅ High-throughput platforms accelerate #CropImprovement efforts by automating trait analysis.
✅ Integration of #ImagingTechniques like #RGB, #NIR, and #ThermalImaging opens up new ways to monitor plant growth in real-time. 🌿📸
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Abstract Tropical mosquitoes transmit diseases like malaria, yellow fever, and Zika. Classifying mosquitoes by species, sex, age, and gravidity offers vital insights for assessing transmission risk and effective mitigations. Photonic monitoring for mosquito classification can be used in distributed sensors or lidars on longer ranges. However, a reflectance model and its parameters are lacking in the current literature. This study investigates mosquitoes of different species, sexes, age groups, and gravidity states, and reports metric pathlengths of wing chitin, body melanin, and water. We use hyperspectral push-broom imaging and laser multiplexing with a rotation stage to measure near-infrared spectra from different angles and develop simple models for spectral reflectance, including wing thickness and equivalent absorption path lengths for melanin and water. We demonstrate wing thickness of 174 (±1) nm – the thinnest wings reported to our knowledge. Water and melanin pathlengths are determined with ∼10 µm precision, and spectral models achieve adjusted R² values exceeding 95%. While mosquito aspect angle impacts the optical cross-section, it alters shortwave infrared spectra minimally (∼2%). These results demonstrate the potential for remote retrieval of micro- and nanoscopic mosquito features using spectral sensors and lidars irrespective of insect body orientation. Improved specificity of vector monitoring can be foreseen.
New from Applied Spectroscopy!
Deadliest Animals with the Thinnest Wings: Near-Infrared Properties of Tropical Mosquitoes
Read open access 🔓: https://doi.org/10.1177/00037028251341317
#SAS #Spectroscopy #NIR #mosquitoes #spectral #reflectance #remote #hyperspectral
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O Congresso atual é inimigo do Povo. #CongressoinImigoDoPovo
#PARTIDOS DEFENSORES DE #BANDIDOS E #ASSASSINOS
#NOVO
#PRD
#PL
#PODEMOS
#SOLIDARIEDADE
#UniãoBrasil
#PP
#PSDB
#AVANTE
#CIDADANIA
#REPUBLICANOS
#MDB
#PSD
#Brasil #NucleoDeInclusãoEReflexão #NIR #GlauberFica 🙌
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Image consists of a picture of the sorting instrument, image of two kernels (waxy and wild type), and a scheme of the process: maize kernels -> near-infrared reflectance (NIR) Spectroscopy -> linear discriminant analysis (LDA) -> waxy maize prediction equation -> images of training and validation sets -> Waxy maize kernel validation prediction accuracy: 88% -> NIR single kernel waxy sorting
New from Applied Spectroscopy!
Classification of #Waxy #Maize Kernels Using Single #Kernel Near-Infrared Reflectance #Spectroscopy
Read more: https://doi.org/10.1177/00037028251349556
#SAS #NIR #reflectance #corn #nondestructive
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New from @appliedspec.bsky.social!
Real-Time #Mapping of #Polymer Film Thickness Using Near-Infrared #NIR #HyperspectralImaging
Read the full article here: https://loom.ly/H_NROCw
#SAS #spectroscopy
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