Results 11 to 20 of about 428 (129)
Zhongguo youzhi, 2023 为了指导生产，实现膨化大豆粉生产线在线检测水分、粗蛋白质和粗脂肪含量，在膨化大豆粉生产线安装近红外光谱仪，并将在线检测数据与国标方法（人工取样）检测数据进行了对比。结果表明：在线近红外光谱仪测定膨化大豆粉样品的水分、粗蛋白质、粗脂肪含量结果与国标方法接近，符合国标允许误差要求；配套的全自动镜头吹扫系统可有效去除黏附在采集窗口上的膨化大豆粉，保证了检测结果的准确性。实践证明，将在线近红外光谱仪应用于膨化大豆粉生产上，完全能满足膨化大豆粉加工行业在线实时监控的需求。 In order to guide ...
王鲁飞1，董迎章1，周梅升1，周海2，杨龙娟1，时圣爱1 WANG Lufei1, DONG Yingzhang1,ZHOU Meisheng1, ZHOU Hai2, YANG Longjuan1,SHI Sheng′ai1
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, 2020 近红外光谱技术(NIRS,near infrared spectroscopy)因其无损、快速、不使用化学试剂的特点,在油料种子脂肪酸检测中应用广泛,尤其对大宗油料种子油脂检测、种质筛选等方面具有重要作用。对NIRS在油料种子建模方法和光谱预处理方法进行综述,重点分析NIRS在特种油料种子相关领域的应用现状,总结特种油料种子样品处理、光谱预处理等NIRS建模的主要因素 ...
贺霞, 袁星雨, 崔虎亮, 张亚楠
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Quantum Fourier-Transform Infrared Spectroscopy for Complex Transmittance Measurements [PDF]
, 2021 量子もつれ光を用いた、新たな赤外分光法を実証 --分析装置の飛躍的な小型化・高性能化に期待--. 京都大学プレスリリース. 2021-03-09.Harnessing the quantum interference of the pair generation processes, infrared quantum spectroscopy, based on nonlinear interferometers with visible-infrared photon-pair sources ...
Arahata, M. +4 more
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[Design and experiment of a multi-modal electroencephalogram-near infrared spectroscopy helmet for simultaneously acquiring at the same brain area]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2018 多模式脑—机接口和多模式脑功能成像是目前和未来的发展趋势。本研究针对基于脑电-近红外光谱(EEG-NIRS)的多模态脑—机接口,为同时采集运动区的脑活动,设计了一种EEG和NIRS联合采集的头盔并进行实验验证。根据10-20系统或10-20扩展系统、NIRS探头和EEG电极直径和间距,以C3或C4为基准电极对近红外探头进行对准,把EEG电极置于NIRS电极之间,同时测量同一功能脑区NIRS变化和与之对应的EEG变化;采用螺纹旋紧的方式耦合近红外探头夹持器和近红外探头 ...
Xiong X +5 more
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, 2020 Near infrared spectroscopy using approved methodology was used for the systematic and quantitative analysis of the of nutritional composition of steamed meat dumplings (shumai). Crushing the outside part of shumai enabled accurate weighing.
4594 +9 more
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Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao +7 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He +9 more
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无创颅内压监测的研究进展 Research Progress of Noninvasive Intracranial Pressure Monitoring
Zhongguo cuzhong zazhi颅内压是指颅腔内容物对颅腔壁的压力，其变化能反映颅内的生理、病理变化情况。成人平卧位的颅内压持续维持在15 mmHg（1 mmHg=0.133 kPa）以上，即为颅内高压。目前，颅内压的监测方法以有创的脑室外引流和实质内探针为“金标准”，然而该方法存在感染风险高、易导致脑损伤和出血等缺陷，且成本高昂。鉴于此，探寻一种安全、精确的无创颅内压监测手段显得尤为关键。本文综述无创颅内压监测的最新研究进展，比较分析了多种技术方法的优势与缺陷，脑成像技术、TCD、脑电图 ...
陈云娜，霍发荣，赵龙，谭亚芳，张晓燕(CHEN Yunna, HUO Farong, ZHAO Long, TAN Yafang, ZHANG Xiaoyan)
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, 2019 表面增强红外吸收光谱（尤其衰减全反射表面增强红外吸收光谱）是一种超灵敏的红外光谱技术，能够实现亚单层膜水平的表面选择性探测. 由于增强基底可同时作为工作电极实现电化学调制，衰减全反射表面增强红外吸收光谱是一种表面敏感的原位免标记光谱电化学技术. 本文首先简要介绍了表面增强红外吸收光谱的基本原理和技术特点，之后通过代表性研究工作着重介绍近年衰减全反射表面增强红外吸收光谱电化学的应用和发展，最后展望了表面增强红外光谱所面临的挑战和潜在的研究方向.Surface-enhanced infrared ...
JIANG Xiu-e +5 more
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Oil Spill identification by near-infrared spectroscopy coupled with clustering analysis based on principle components [PDF]
, 2004 鉴于目前没有一种方法能独立解决溢油鉴别的所有问题,本文提出了近红外光谱技术结合主成分聚类分析鉴别溢油种类的方法。通过有机溶剂萃取出自行配制的汽油、柴油和润滑油模拟样品中的溢油后记录其近红外光谱,对5800～6200cm-1区段范围内的谱图经多元散射校正(MSC)、Norris一阶导数平滑预处理处理后求其主成分,并在主成分的基础上引入Ward聚类分析法(离差平方和法)对样品分类。结果表明近红外光谱技术结合聚类分析能对体积分数在0.4～0.8mL/L间的海面溢油样品正确、快速分类 ...
何鹰 +6 more
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