نتایج جستجو برای: باند nir

تعداد نتایج: 15266  

2017
Kaimei Ke Wen Yang Xiaoli Xie Rui Liu Li-Li Wang Wei-Wen Lin Guoming Huang Chun-Hua Lu Huang-Hao Yang

Multifunctional nanoplatforms with integrated diagnostic and therapeutic functions have attracted tremendous attention. Especially, the second near-infrared (NIR-II) light response-based nanoplatforms hold great potential in cancer theranostic applications, which is because the NIR-II window provides larger tissue penetration depth and higher maximum permissible exposure (MPE) than that of the ...

2008
Sheng Wang Xianzhen Li Shidi Xun Xinhua Wan Zhi Yuan Wang

A series of near-infrared (NIR) electrochromic and electroluminescent polymers containing the pendant dinuclear ruthenium complexes were synthesized and characterized. All the polymers are near-infrared (NIR) electrochromic, displaying an intense absorption centered at 1600 nm upon oxidation to the mixed-valence state. Single-layer diode devices comprising a layer of the complex polymers sandwi...

2012
Guandong Zhang Jacek B Jasinski Justin Lee Howell Dhruvinkumar Patel Dennis P Stephens Andre M Gobin

In the quest for producing an effective clinically relevant therapeutic agent, scalability, repeatability, and stability are paramount. In this paper, gold nanoparticles (GNPs) with precisely controlled near infrared (NIR) absorption are synthesized by a single step reaction of HAuCl4 and Na2S2O3, without assistance of additional templates, capping reagents or seeds. The anisotropy in the shape...

2014
Wojciech Polom Marcin Markuszewski Young Soo Rho Marcin Matuszewski

INTRODUCTION Near infrared (NIR) technology has recently garnered much interest as a tool for intraoperative image-guided surgery in various surgical sub-disciplines. In urology, although nascent, NIR technology is also fostering much enthusiasm. This review discusses the two major fluorophores, indocyanine green (ICG) and methlyene blue (MB), with NIR guidance in experimental and clinical urol...

2010
Clément Fredembach Sabine Süsstrunk

Shadows, due to their prevalence in natural images, are a long studied phenomenon in digital photography and computer vision. Indeed, their presence can be a hindrance for a number of algorithms; accurate detection (and sometimes subsequent removal) of shadows in images is thus of paramount importance. In this paper, we present a method to detect shadows in a fast and accurate manner. To do so,...

2012
Andrzej F. Frydrychowski Arkadiusz Szarmach Bartosz Czaplewski Pawel J. Winklewski

PURPOSE The purpose of the study was to: (1) evaluate the subarachnoid space (SAS) width and pial artery pulsation in both hemispheres, and (2) directly compare magnetic resonance imaging (MRI) to near-infrared transillumination/backscattering sounding (NIR-T/BSS) measurements of SAS width changes in healthy volunteers. METHODS The study was performed on three separate groups of volunteers, c...

2016
Konstantin A. Rumyantsev Konstantin K. Turoverov Vladislav V. Verkhusha

Bioluminescence imaging became a widely used technique for noninvasive study of biological processes in small animals. Bioluminescent probes with emission in near-infrared (NIR) spectral region confer the advantage of having deep tissue penetration capacity. However, there are a very limited number of currently available luciferases that exhibit NIR bioluminescence. Here, we engineered two nove...

ژورنال: :مهندسی بیوسیستم ایران 2011
سید احمد میره ای سید سعید محتسبی رضا مسعودی شاهین رفیعی آتوسا سادات عربانیان

در این تحقیق، پتانسیل تکنیک غیرمخرب طیف سنجی ft-nir در تعیین میزان رطوبت و مواد جامد محلول خرمای شاهانی مورد ارزیابی قرار گرفت. طیف ft-nir خرماها با استفاده از یک اسپکتروفوتومتر ft-nir در وضعیت انعکاسی و در محدودة طول موجی 12000- 4000 سانتیمتر معکوس (800- 2500 نانومتر) به دست آمد. از سه روش متفاوت پیش پردازش (تصحیح پراکنش افزاینده ، مشتق اول و مشتق دوم) برای حذف اطلاعات اضافی از طیف ها استفاده ...

Journal: :American heart journal 2001
S Miketic J Carlsson U Tebbe

BACKGROUND Coronary artery stents are used for the treatment of acute or threatening vessel occlusion complicating coronary angioplasty or for prevention of restenosis after angioplasty. The current randomized trial compared the procedural outcome and long-term patency of 2 different flexible stents in unselected lesion morphology. METHODS The study population consisted of consecutive patient...

Journal: :Information 2016
Min Peng Chongyang Wang Tong Chen Guangyuan Liu

Near-infrared (NIR) face recognition has attracted increasing attention because of its advantage of illumination invariance. However, traditional face recognition methods based on NIR are designed for and tested in cooperative-user applications. In this paper, we present a convolutional neural network (CNN) for NIR face recognition (specifically face identification) in non-cooperative-user appl...

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