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Steroids from the Roots of Asparagus officinalis and Their Cytotoxic Activity

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Journal of Integrative Plant Biology 2008年第6期50卷 717-722页

作者： Xue-Feng huang yu-Ying lin ling-Yi Kong Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 China

One new （Sarsasapogenin O） and seven known steroids were isolated from the roots of Asparagus offlcinalis L. Their structures were elucidated on the basis of spectroscopic analysis, including various 2D-NMR techniques, hydrolysis, and by comparison of spectral data of known compounds. These compounds together with nine steroids which were previously isolated from this plant, were tested for cytotoxic activity. Among them, eight compounds displayed significant cytotoxiciUes against human A2780, HO-8910, Eca-109, MGC-803, CNE, LTEP-a-2, KB and mouse L1210 tumor cells.

关键词： Asparagus officinalis cytotoxic activity Sarsasapogenin O steroid

Polaron-pair-dependent equivalent circuit parameters of organic solar cells based on CuPc and C_(60)

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Chinese Science Bulletin 2010年第13期55卷 1317-1324页

作者： huang Jiang yu JunSheng lin Hui JIANG YaDong State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Scienceand Technology of China (UESTC) Chengdu 610054 China

We present the current-voltage characteristics of organic solar cells based on single and double heterojunction of copper phthalocyanine (CuPc) and C60 by introducing a constant JP instead of photo-current density Jph to represent the density of polaron-pairs generated from excitons at D/A interface. A diode Dext models polaron-pair dissociation, and a diode Drec stands for loss due to polaron-pair recombination. The photovoltaic response under AM 1.5 solar illumination at an intensity of 100 mW/cm2 is parameterized and modeled using the improved equivalent circuit model developed for inorganic pn-junction solar cells. The instinct mechanisms including dissociation, recombination of polaron-pairs and charge carrier collection process are explained by introducing Jph/JP as the dissociation rate of polaron-pairs and |J|/Jph as charge carrier application efficiency ηCA. Especially, we reveal the optimization mechanism for the fill factor FF and series resistance RS of organic solar cells.

关键词：有机太阳能电池极化子等效电路参数 C60 酞菁铜电流电压特性等效电路模型电流密度

STRATEGIES FOR SOLVING KEY PROBLEMS IN RESEARCH AND DEVELOPMENT OF AUTOMOTIVE CONTINUOUSLY VARIABLE TRANSMISSION

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Chinese Journal of Mechanical Engineering 1997年第4期10卷 14-18页

作者： huang Xiangdong Yan yu lin Bin

Several key problems in the research and development of continuously variable transmission for automobile, such as those connected to the transmitting frictional pair and the related automatic tight pressing actuator, the transmission ratio control logic and the related automatic control system, are discussed. The strategies taken for solving these key problems are described.

关键词： Continuously variable transmission Frictional pair Automatic control

Optical cross-talk reduction in a quantumdot-based full-color micro-light-emitting-diode display by a lithographic-fabricated photoresist mold

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Photonics Research 2017年第5期5卷 411-416页

作者： huang-yu lin CHIN-WEI SHER DAN-HUA HSIEH XIN-YIN CHEN huang-MING PHILIP CHEN TENG-MING CHEN KEI-MAY LAU CHYONG-HUA CHEN CHIEN-CHUNG lin HAO-CHUNG KUO Department of Photonics and Institute of Electro-Optical Engineering National Chiao Tung University Department of Applied Chemistry National Chiao Tung University Department of Electric and Computer Engineering Hong Kong University of Science and Technology Institute of Photonic System National Chiao Tung University

In this study, a full-color emission red–green–blue(RGB) quantum-dot(QD)-based micro-light-emitting-diode(micro-LED) array with the reduced optical cross-talk effect by a photoresist mold has been demonstrated. The UV micro-LED array is used as an efficient excitation source for the QDs. The aerosol jet technique provides a narrow linewidth on the micrometer scale for a precise jet of QDs on the micro-LEDs. To reduce the optical cross-talk effect,a simple lithography method and photoresist are used to fabricate the mold, which consists of a window for QD jetting and a blocking wall for cross-talk reduction. The cross-talk effect of the well-confined QDs in the window is confirmed by a fluorescence microscope, which shows clear separation between QD pixels. A distributed Bragg reflector is covered on the micro-LED array and the QDs' jetted mold to further increase the reuse of UV *** enhanced light emission of the QDs is 5%, 32%, and 23% for blue, green, and red QDs, respectively.

关键词： QDs Optical cross-talk reduction in a quantumdot-based full-color micro-light-emitting-diode display by a lithographic-fabricated photoresist mold

SOLID-PHASE SYNTHESIS OF 4,5-DISUBSTITUTED 1,2,3-TRIAZOLES

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Chinese Chemical Letters 1991年第10期2卷 773-774页

作者： Chen Xi LI Wen Qiang huang yu LU Bing lin HE Institute of Polymer Chemistry, Nankai University, Tianjin, 300071

4-Aryl-5-ethoxycarbonyl-1-H-1,2,3-triazoles have been prepared by treatment of ethyl polystyrylsulfonylacetate with substituted benzaldehydes and then sodium azide.

关键词： OC IR NH KBr SOLID-PHASE SYNTHESIS OF 4,5-DISUBSTITUTED 1,2,3-TRIAZOLES Ph

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约束随机线性二次最优控制的研究

自动化学报 2006年第2期32卷 246-254页

作者：黄玉林张维海山东大学数学与系统科学学院济南250100 山东轻工业学院电子信息与控制工程学院济南250100

研究线性终端状态约束下不定随机线性二次最优控制问题．首先利用Lagrange mul tiplier定理得到了存在最优线性状态反馈解的必要条件,而在加强的条件下也得到了最优控制存在的充分条件．从某种意义上讲,以往关于无约束随机线性二次最优... 详细信息

研究线性终端状态约束下不定随机线性二次最优控制问题．首先利用Lagrange mul tiplier定理得到了存在最优线性状态反馈解的必要条件,而在加强的条件下也得到了最优控制存在的充分条件．从某种意义上讲,以往关于无约束随机线性二次最优控制的一些结果可以看成本文主要定理的推论．

关键词：随机LQ最优控制线性约束 Lagrange multiplier定理广义微分Riccati方程

双基地线性FMCW雷达信号模糊函数及分辨特性

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电子与信息学报 2007年第4期29卷 836-840页

作者：张容权黄钰林杨建宇电子科技大学电子工程学院成都610054

该文通过对双基地雷达几何结构和线性调频连续波(FMCW)信号的特点分析,推导了双基地线性FMCW雷达信号的模糊函数,表明模糊函数形状受目标位置的影响;从模糊函数推导出的距离分辨率、速度分辨率、距离速度耦合斜率均是关于目标双基地角... 详细信息

该文通过对双基地雷达几何结构和线性调频连续波(FMCW)信号的特点分析,推导了双基地线性FMCW雷达信号的模糊函数,表明模糊函数形状受目标位置的影响;从模糊函数推导出的距离分辨率、速度分辨率、距离速度耦合斜率均是关于目标双基地角的函数,从而导致目标的分辨特性与目标位置有关。该结论可为这种雷达体制在信号处理和波形设计上提供理论依据。

关键词：双基地雷达线性调频连续波模糊函数距离分辨率速度分辨率距离速度耦合

计算机视觉技术在珍稀野生动物疾病监测与预警中的应用现状及展望

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动物医学进展 2024年第5期45卷 118-125页

作者：郑泽林黄霖宇四川大学电子信息学院四川成都610065

珍稀野生动物是指生活在自然环境中、具有独特生物学特征和高度濒危的动物,其疾病监测与预警不仅关系到动物福利和物种保护,也影响到生态系统平衡和人类健康。计算机视觉技术是人工智能领域的一个分支,它使计算机能够模拟人类视觉系统,... 详细信息

珍稀野生动物是指生活在自然环境中、具有独特生物学特征和高度濒危的动物,其疾病监测与预警不仅关系到动物福利和物种保护,也影响到生态系统平衡和人类健康。计算机视觉技术是人工智能领域的一个分支,它使计算机能够模拟人类视觉系统,从而理解和解析图像和视频数据。珍稀野生动物疾病监测与预警需要一个能够进行图像识别、模式识别和人工智能算法的高科技系统,该系统包括图像采集、数据预处理、特征提取、疾病识别模型、实时监测与预警等关键组成部分,可被用于大熊猫、金丝猴、东北虎等珍稀野生动物的疾病监测与预警,及时发现其疾病或异常行为,迅速采取救治措施。论文对计算机视觉技术及其在珍稀野生动物疾病监测与预警中的应用现状及存在的问题进行了分析,并对其未来发展趋势做出展望。

关键词：计算机视觉技术疾病监测与预警珍稀野生动物

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基于智能优化算法的深大基坑施工反分析

岩土工程学报 2017年第S2期39卷 128-131页

作者：左自波黄玉林吴小建上海建工集团工程研究总院上海201114 上海建工集团股份有限公司上海200080

引入人工智能技术,提出了一种基于神经网络的Nelder-Mead改进加速算法,建立了基于监测结果的深大基坑动态施工反馈分析方法。以93383 m2超大基坑工程为案例,进行了三维有限元参数反演分析,预测了基坑后续开挖围护结构水平位移、支撑轴... 详细信息

引入人工智能技术,提出了一种基于神经网络的Nelder-Mead改进加速算法,建立了基于监测结果的深大基坑动态施工反馈分析方法。以93383 m2超大基坑工程为案例,进行了三维有限元参数反演分析,预测了基坑后续开挖围护结构水平位移、支撑轴力、管沟位移。结果表明:与Nelder-Mead算法比较,采用所建立的方法的收敛速度快,迭代次数减少了最大达86.9%;预测结果与实测结果吻合较好。

关键词：基坑反分析三维FEM模拟 Nelder-Mead算法神经网络