نتایج جستجو برای: portable nir

تعداد نتایج: 44380  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2012
Takashi Nishii Takuma Genkawa Masahiro Watari Yukihiro Ozaki

A new selection procedure of an informative near-infrared (NIR) region for regression model building is proposed that uses an online NIR/mid-infrared (mid-IR) dual-region spectrometer in conjunction with two-dimensional (2D) NIR/mid-IR heterospectral correlation spectroscopy. In this procedure, both NIR and mid-IR spectra of a liquid sample are acquired sequentially during a reaction process u...

2017
Hongzhe Jiang Miryeong Sohn Wei Wang

Models for determining contents of soy products in ground beef were developed using near-infrared (NIR) spectroscopy. Samples were prepared by mixing four kinds of soybean protein products (Arconet, toasted soy grits, Profam and textured vegetable protein (TVP)) with ground beef (content from 0%–100%). NIR spectra of meat mixtures were measured with dispersive (400–2500 nm) and Fourier transfor...

2009
Michelle Sexton Grace Woodruff Eiron Cudaback Faith R. Kreitzer Cong Xu Yi Hsing Lin Thomas Möller Mingfeng Bai H. Charles Manning Darryl Bornhop Nephi Stella

PK 11195 and DAA1106 bind with high-affinity to the translocator protein (TSPO, formerly known as the peripheral benzodiazepine receptor). TSPO expression in glial cells increases in response to cytokines and pathological stimuli. Accordingly, [(11)C]-PK 11195 and [(11)C]-DAA1106 are recognized molecular imaging (MI) agents capable of monitoring changes in TSPO expression occurring in vivo and ...

2016
Hayato Teranaka Yusuke Monno Masayuki Tanaka Masatoshi Okutomi

In recent years, many applications using a pair of RGB and near-infrared (NIR) images have been proposed in computer vision and image processing communities. Thanks to recent progress of image sensor technology, it is also becoming possible to manufacture an image sensor with a novel spectral filter array, which has RGB plus NIR pixels for one-shot acquisition of the RGB and the NIR images. In ...

Journal: :Solar Energy Materials and Solar Cells 2022

Solar thermal absorber coatings play an important role in the opto-thermal efficiency of receivers Concentrated Power (CSP). Two standard figures merit are solar absorptance ?sol and emittance ?th, derived from spectral directional hemispherical reflectance measurements at room temperature. These two allow comparing coating formulations terms performance durability. In this study, a black selec...

Journal: :Talanta 2021

Demand for high quality Basmati rice has increased significantly in the last decade. This commodity is highly vulnerable to fraud, especially post COVID-19 era. A unique two-tiered analytical system comprised of rapid on-site screening samples using handheld portable Near-infrared NIR and laboratory confirmatory technique a Head space gas chromatography mass spectrometry (HS-GC-MS) strategy unt...

2014
David Holt Olugbenga Okusanya Ryan Judy Ollin Venegas Jack Jiang Elizabeth DeJesus Evgeniy Eruslanov Jon Quatromoni Pratik Bhojnagarwala Charuhas Deshpande Steven Albelda Shuming Nie Sunil Singhal

INTRODUCTION Defining tumor from non-tumor tissue is one of the major challenges of cancer surgery. Surgeons depend on visual and tactile clues to select which tissues should be removed from a patient. Recently, we and others have hypothesized near-infrared (NIR) imaging can be used during surgery to differentiate tumors from normal tissue. METHODS We enrolled 8 canines and 5 humans undergoin...

سیداحمد میره‌ای سیدسعید محتسبی شاهین رفیعی, مرتضی صادقی

تعیین غیرمخرب، سریع و کم هزینه مقدار رطوبت خرما یکی از اقدامات بسیار مهم در تعیین رسیدگی و فرآوری این محصول ارزشمند محسوب می‌شود. از طرف دیگر، روش اسپکتروسکوپی NIR یکی از روش‌های توانمند در تخمین غیرمخرب خواص درونی محصولات کشاورزی است. در این تحقیق، اثر سه روش متداول بازتابشی، عبوری و تقابلی در اندازه‌گیری طیف NIR بر توانایی مدل‌های PLS در تخمین مقدار رطوبت خرماهای مضافتی مورد مطالعه قرار گرفت....

2016
Shea Hagstrom Joshua Broadwater

Many modern LIDAR platforms contain an integrated RGB camera for capturing contextual imagery. However, these RGB cameras do not collect a near-infrared (NIR) color channel, omitting information useful for many analytical purposes. This raises the question of whether LIDAR data, collected in the NIR, can be used as a substitute for an actual NIR image in this situation. Generating a LIDAR-based...

Journal: :Circulation 1988
Y Goto Y Igarashi O Yamada K Hiramori H Suga

To determine the essential mechanism of increased systolic wall motion, i.e., hyperkinesis, in a nonischemic region (NIR) during acute ischemia, we simultaneously evaluated global and regional function of the excised, cross-circulated canine left ventricle connected to a volume servo pump before and after coronary occlusion. Regional areas were determined with pairs of orthogonal subendocardial...

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