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关键词

色域 2

LED，颜色漂移，光通量衰减，流明衰减 1

业务化应用 1

中国海洋一号卫星 1

中性原子量子计算 1

仪表板材料 1

保险杠材料 1

光泽 1

光老化性能 1

光量子计算 1

几何校正 1

分布式量子计算 1

分数阶离散系统；神经网络；DNA加密；彩色图像加密 1

发射率 1

吸收光谱 1

囚禁离子量子计算 1

多投影面 1

彩色医学图像；四元数；自适应水印；加密；分数阶变换；三维混沌逻辑映射（3D-CLM） 1

彩色图像灰度化；子空间建模；二阶多项式模型；梯度相关相似；离散搜索 1

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Genomic regions under selection for important traits in domestic horse breeds

Xuexue LIU, Yuehui MA, Lin JIANG

《农业科学与工程前沿（英文）》 2017年第4卷第3期页码 289-294 doi: 10.15302/J-FASE-2017155

摘要： Horses were domesticated 5500 years ago, thousands of years later than other domestic animals; however, in this relatively short period, domestic horses have had a great impact on human history by accelerating civilization, revolutionizing warfare and advancing agricultural production. Modern breeding using marker-assisted selection has greatly accelerated breeding progress. Therefore, identification of genetic markers underlying the traits of interest in domestic horses is the basis for the modern breeding system. In this review, we present an overview of genetic mapping studies and genome wide analyses to identify the genomic regions targeted by positive selection for four important aspects of horses, coat color, racing performance, gait and height at withers. The locus, for example, has been shown to be the main gene responsible for chestnut color, and the locus has been shown to control the muscle fiber growth in racing breeds. The missense mutation in is the causal mutation for the alternate gaits in horses. Height at withers, a quantitative trait, was mapped to four major loci (3:105547002, 6:81481064, 9:75550059 and 11:232597 32) that can explain 83% of the height variations in domestic horses.

关键词： horse coat color racing performance gait height

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彩色测温方法中物体辐射色域的界定和划分

王安全,程晓舫,陆少松

《中国工程科学》 2002年第4卷第8期页码 54-57

摘要：

介绍了彩色测温方法的基本原理，并基于可见光波段内光谱发射率的线性模型给出物体辐射颜色色品的表述；明确了一个色品最多只能求解出两个温度；解决了彩色测温方法中物体辐射色域的界定问题，并将辐射色域划分为温度单解域和双解域。

关键词：辐射测温彩色测温色域发射率

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Konjac glucomannan and xanthan gum as compression coat for colonic drug delivery: experimental and theoretical

Kang WANG, Jiangyang FAN, Yanjun LIU, Zhimin HE,

《化学科学与工程前沿（英文）》 2010年第4卷第1期页码 102-108 doi: 10.1007/s11705-009-0299-x

摘要： Compression coated tablets for oral colon specific delivery systems were developed with a mixture polysaccharide of konjac glucomannan (KGM) and xanthan gum (XG) as the compression coat. Diffusion of cimetidine from compression coated tablets was investigated by release experiment . 0.22U/mL -mannanase was applied in the mimic colon solution. The structure of the mixture polysaccharide was studied by an atomic force microscope (AFM). The experimental results indicate that a KGM70 tablet with a 0.4g coat is of good design, due to a less than 5% drug loss in the mimic upper gastrointestinal solution by the synergistic interaction between XG and KGM, and due to about 50% cumulative release in the mimic colon solution by degradation after 24 hours. The release mechanism and model are discussed based on different periods of drug release including the delay of the drug, the constant release without an enzyme and the delay of degradation. Under hydrolysis by -mannanase, drug release from the tablet with KGM coat shows an exponential increase, while that from the dosage with the mixture polysaccharide coat is an approximately zero-order process in which the constant release rate relates to the release velocity of a non-degraded system, the content of KGM within the coat and the average molecular weight ratio of KGM to XG. It was found that XG was the framework of the polysaccharide mixtures by AFM, which is similar to the analysis results from experiments on drug release.

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我国海洋水色遥感应用工程技术的新进展

潘德炉,白雁

《中国工程科学》 2008年第10卷第9期页码 14-24

摘要：

介绍了近年来我国在海洋水色遥感应用工程技术方面的新进展，包括以应用为导向的关键技术研究和各类应用示范系统的开发等。针对当前海洋水色遥感业务化应用服务所面临的问题和一些急需解决的关键工程技术进行了分析和展望。

关键词：海洋水色遥感业务化应用中国海洋一号卫星

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Investigations on color variations of Morpho rhetenor butterfly wing scales

Guanglan LIAO, Haibo ZUO, Xuan JIANG, Xuefeng YANG, Tielin SHI

《机械工程前沿（英文）》 2012年第7卷第4期页码 394-400 doi: 10.1007/s11465-012-0347-y

摘要：

Experiments and simulations are carried out to investigate the optical properties of butterfly wing scales. The upper surface of a male butterfly wing presents a single-layer of scales, the microstructures of which are responsible for the brilliant blue color. The color varies from cyan blue to yellow green and soon afterwards returns back to cyan blue when some ethanol is dropped on the upper surface. At the start of the ethanol volatilization process, the reflection spectrum remains stable. As the ethanol further volatilizes, the peak reflectance decreases slightly, then increases dramatically. Meanwhile, the peak wavelength keeps approximately constant, then decreases, and keeps almost stable at the end of the process. Therefore, the optical properties depend strongly on the varying ambient conditions, including the refractive index and the thickness of the packing medium. Moreover, the possible causes for the scales in dark green region after several dropping ethanol experiments are clarified. This research benefits our understanding of the color variation mechanisms of the wing scales, and provides inspiration for further studies and applications.

关键词： Morpho rhetenor microstructures color variations ambient medium

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Multi-color space threshold segmentation and self-learning k-NN algorithm for surge test EUT status

Jian HUANG,Gui-xiong LIU

《机械工程前沿（英文）》 2016年第11卷第3期页码 311-315 doi: 10.1007/s11465-016-0376-z

摘要：

The identification of targets varies in different surge tests. A multi-color space threshold segmentation and self-learning k-nearest neighbor algorithm (k-NN) for equipment under test status identification was proposed after using feature matching to identify equipment status had to train new patterns every time before testing. First, color space (L*a*b*, hue saturation lightness (HSL), hue saturation value (HSV)) to segment was selected according to the high luminance points ratio and white luminance points ratio of the image. Second, the unknown class sample S_r was classified by the k-NN algorithm with training set T_z according to the feature vector, which was formed from number of pixels, eccentricity ratio, compactness ratio, and Euler’s numbers. Last, while the classification confidence coefficient equaled k, made S_r as one sample of pre-training set T_z′. The training set T_z increased to T_z₊₁ by T_z′ if T_z′ was saturated. In nine series of illuminant, indicator light, screen, and disturbances samples (a total of 21600 frames), the algorithm had a 98.65% identification accuracy, also selected five groups of samples to enlarge the training set from T₀ to T₅ by itself.

关键词： multi-color space k-nearest neighbor algorithm (k-NN) self-learning surge test

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高等植物叶片色域的理论研究

程晓舫,董金一,范学良,丁金磊

《中国工程科学》 2006年第8卷第12期页码 66-69

摘要：

利用叶绿素和类胡萝卜素的经典吸收光谱以及植物叶片中不含色素的其他物质成分的光谱，分别求得其在CIE1931色品图中的理论坐标，并根据色度学中的加法混色原理确定出高等植物叶色的理论域范围。实验数据与理论相吻合。

关键词：高等植物色素吸收光谱色度坐标色域

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固态照明系统中颜色维持率的研究进展 Review

Maryam Yazdan Mehr, Willem Dirk van Driel, 张国旗

《工程（英文）》 2015年第1卷第2期页码 170-178 doi: 10.15302/J-ENG-2015035

摘要：

本文全面回顾了固态照明 (SSL) 系统中颜色维持率 (也称颜色漂移) 的研究进展。首先介绍了颜色漂移及实际生产工艺中的颜色漂移实例，然后阐释了固态照明系统中不同部分的老化机制。通过对LED 产品中透镜/密封件所用的各种材料的介绍，探讨了这些材料对颜色漂移的促进作用。本文还就行业对光通维持率的定义标准化、表征描述与预测所做的工作进行了简单的回顾。

关键词： LED，颜色漂移，光通量衰减，流明衰减

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Anefficient quadrature demodulator for medical ultrasound imaging

Hao ZHOU,Yin-fei ZHENG

《信息与电子工程前沿（英文）》 2015年第16卷第4期页码 301-310 doi: 10.1631/FITEE.1400205

摘要： Quadrature demodulation is used in medical ultrasound imaging to derive the envelope and instantaneous phase of the received radio-frequency (RF) signal. In quadrature demodulation, RF signal is multiplied with the sine and cosine wave reference signal and then low-pass filtered to produce the base-band complex signal, which has high computational complexity. In this paper, we propose an efficient quadrature demodulation method for B-mode and color flow imaging, in which the RF signal is demodulated by a pair of finite impulse response filters without mixing with the reference signal, to reduce the computational complexity. The proposed method was evaluated with simulation and in vivo experiments. From the simulation results, the proposed quadrature demodulation method produced similar normalized residual sum of squares (NRSS) and velocity profile compared with the conventional quadrature demodulation method. In the in vivo color flow imaging experiments, the time of the demodulation process was 5.66 ms and 3.36 ms, for the conventional method and the proposed method, respectively. These results indicated that the proposed method can maintain the performance of quadrature demodulation while reducing computational complexity.

关键词： B-mode ultrasound imaging Color flow imaging Quadrature demodulation Finite impulse response filter

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Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

《化学科学与工程前沿（英文）》 2020年第14卷第5期页码 793-801 doi: 10.1007/s11705-019-1876-2

摘要： Strain QCG of the aerobic bacteria is capable of producing 1-naphthol from naphthalene, this strain was first isolated and characterized in this study. Strain QCG was mutagenized to enhance 1-naphthol production, using atmospheric and room temperature plasma (ARTP) technology. Then, a microbial clone screening system was used to accelerate the operation. Meanwhile, a novel color-mediated high-throughput screening using 4-aminoantipyrine was performed to screen mutants. The optimal mutant strain QCG4 produced 19.58±0.34 mg∙L 1-naphthol from naphthalene that was 47.32% higher than that of the original strain (13.29±0.28 mg∙L ). In addition, the optimal conditions for 1-naphthol production via whole-cell catalysis of strain QCG4 were determined to be an OD of 40, 150 mg∙L naphthalene, and 7.5% dimethyl formamide as a co-solvent at pH 7.5 and 26°C for 3 h, resulting in 41.18±0.12 mg∙L 1-naphthol, i.e., the mutant strain produces a 2.1-fold higher yield compared to the original strain.

关键词： Bacillus cereus QCG naphthalene 1-naphthol ARTP mutagenesis high-throughput screening 4-aminoantipyrine

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Ionically Imprinting-Based Copper (Ⅱ) Label-Free Detection for Preventing Hearing Loss Article

Huan Wang, Hui Zhang, Xiaoli Zhang, Hong Chen, Ling Lu, Renjie Chai

《工程（英文）》 doi: 10.1016/j.eng.2023.09.001

摘要：

Copper is a microelement with important physiological functions in the body. However, the excess copper ion (Cu²⁺) may cause severe health problems, such as hair cell apoptosis and the resultant hearing loss. Therefore, the assay of Cu²⁺ is important. We integrate ionic imprinting technology (IIT) and structurally colored hydrogel beads to prepare chitosan-based ionically imprinted hydrogel beads (IIHBs) as a low-cost and high-specificity platform for Cu²⁺ detection. The IIHBs have a macroporous microstructure, uniform size, vivid structural color, and magnetic responsiveness. When incubated in solution, IIHBs recognize Cu²⁺ and exhibit a reflective peak change, thereby achieving label-free detection. In addition, benefiting from the IIT, the IIHBs display good specificity and selectivity and have an imprinting factor of 19.14 at 100 lmol∙L^–1. These features indicated that the developed IIHBs are promising candidates for Cu²⁺ detection, particularly for the prevention of hearing loss.

关键词： Structural color Microfluidics Ionic imprinting Label-free detection Hearing loss

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激光显示技术发展的现状和趋势

高伟男,许祖彦,毕勇,袁园

《中国工程科学》 2020年第22卷第3期页码 85-91 doi: 10.15302/J-SSCAE-2020.03.013

摘要：

随着信息技术的不断发展，信息化时代已经来临，显示作为人机信息交互环节最重要的信息输出终端，已经遍及人们生活的各个方面。当今时代显示技术层出不穷，都以实现超高分辨率、大尺寸、真色彩的极致画面显示，满足人们追求极致美好视觉的需求为发展方向，目标就是实现高保真图像再现。激光显示是采用三基色激光作为显示光源的新型显示技术，可以实现双高清（几何/ 颜色）、大色域、高观赏舒适度的“冲击人眼视觉极限”高保真图像再现，被视为显示产业转型升级的重要方向之一。本文立足新形势下显示产业自主可控安全发展的需求，详细论述了激光显示技术和产业特点，梳理和总结了本领域发展现状、趋势和短板问题，凝练出激光显示产业发展路线图，建议我国应抓住这一大好机遇，加大关键核心技术攻关，自主可控加速将激光显示产业发展壮大，支撑下一代显示产业的高端市场，并开拓出激光显示规模产业集群。

关键词：激光显示，双高清，大色域，高观赏舒适度

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An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different climate zones

Yang WANG, Baoming LI

《农业科学与工程前沿（英文）》 2020年第7卷第4期页码 478-489 doi: 10.15302/J-FASE-2019289

摘要：

The degree-day method is widely used to determine energy consumption but cannot be directly applied to poultry buildings without improvements in its accuracy. This study was designed to optimize the degree-day calculation and proposes a solar-air degree-day method, which can be used to calculate the cooling and heating degree-days and the annual cooling and heating loads under different climate conditions for poultry buildings. In this paper, the solar-air degree-day method was proposed, which considers the effects of solar radiation with different wall orientations and surface colors. Five Chinese cities, Harbin, Beijing, Chongqing, Kunming and Guangzhou, were selected to represent different climate zones to determine the solar-air degree-days. The heating and cooling energy requirements for different climates were compared by DeST (Designer’s Simulation Toolkit) simulation and the solar-air degree-day method. Approaches to decrease energy consumption were developed. The results showed that the maximum relative error was less than 10%, and the new method was not significantly different from the DeST simulation ( >0.05). The accuracy of calculating energy requirements was improved by the solar-air degree-day method in the different climate zones. Orientation and surface color effects on energy consumption need to be considered, and external walls of different orientations should have different surface colors.

关键词： base temperature energy consumption solar radiation orientation surface color

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高临场感多投影面虚拟环境系统的设计与实现

贾庆轩,宋荆洲,孙汉旭,高欣,姚福生

《中国工程科学》 2006年第8卷第8期页码 33-38

摘要：

给出了高临场感多投影面虚拟环境系统的体系结构，研究了系统构建中的立体显示、图形分割、画面同步、几何校正、颜色校正等关键问题；采用基于联网PC驱动的技术、利用中低端的投影机和低性能网络设备，构建了一个五通道的220度宽视场角多投影面虚拟环境应用验证系统，获得了良好的画面整体一致性效果和高度的沉浸感。

关键词：多投影面画面同步立体显示几何校正颜色校正

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Muhammad IMRAN, Bruce A. HARVEY, Muhammad ATIF, Adnan Ali MEMON

《信息与电子工程前沿（英文）》 2019年第20卷第7期页码 946-963 doi: 10.1631/FITEE.1700667

摘要：提出一种基于多分辨率分解和去相关的模块化安全性与鲁棒性彩色图像水印方案。该方案主要目标是同时满足良好水印的4个要求（鲁棒性、安全性、不可察觉性和容量）。本研究的贡献在于实现一个基本满足这4个矛盾需求的水印方案。为此，结合不同方法以实现这个目的。例如，为获得不可察觉性，通过主成分分析去相关3个颜色（红绿蓝）通道，并选择第一个主成分（去相关红色通道）嵌入水印。为取得鲁棒性，采用离散小波变换（DWT）分解去相关信道，将近似带（其余3个带保持不变以保留边缘信息）进一步分解为不同区块。根据随机生成键选择随机区块。随机选取的区块进一步被分解为奇异值和向量。基于奇异值和向量矩阵的相互依赖性，并依据水印位，对数值进行修改，并保存这些数值的位置，将数值位置作为提取水印所需的另一个密钥。两级认证级别确保了安全性，同时使用奇异值和向量可提高该方案的容量。此外，在水印嵌入过程中，左右奇异向量与奇异值的结合增强了该方案的鲁棒性。最后，使用Gonzalez和Kodak数据集，从不可察觉性（峰值信噪比和结构相似性指数）、安全性（带多个伪密钥）、鲁棒性（归一化相关和误码率）和容量方面将该方案与已有方案作比。结果显示本文方案与现有方案相比有明显改进。

关键词：版权保护；数据隐藏；多分辨率分解；去相关；安全性

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标题作者时间类型操作

Genomic regions under selection for important traits in domestic horse breeds

Xuexue LIU, Yuehui MA, Lin JIANG

期刊论文

彩色测温方法中物体辐射色域的界定和划分

王安全,程晓舫,陆少松

期刊论文

Konjac glucomannan and xanthan gum as compression coat for colonic drug delivery: experimental and theoretical

Kang WANG, Jiangyang FAN, Yanjun LIU, Zhimin HE,

期刊论文