16,675 research outputs found
Zhu pi shang yu
No full text[雍正批 ; 鄂爾泰等輯].綫裝, 16函.框21x16.2公分, 10行21字, 小字雙行, 無界行. 白口, 四周雙邊, 單黑魚尾. 版心上鐫"硃批諭旨", 中鐫葉次, 下記上奏臣工姓名. 行間有朱墨批點.題名據版心.內府活字硃墨套印本.前有雍正十年御製序.見《香港中文大學圖書館古籍善本書錄》(2001, p. 62)鈐"朝徹書屋", "南海劉氏", "劉安溥湖涵之章", "蓄素守巾"等印.Xian zhuang, 16 han.Kuang 21 x 16.2 gong fen, 10 hang 21 zi, xiao zi shuang hang, wu jie hang. Bai kou, si zhou shuang bian, dan hei yu wei. Ban xin shang juan "Zhu pi yu zhi", zhong juan ye ci, xia ji shang zou chen gong xing ming. Hang jian you zhu mo pi dian.Ti ming ju ban xin.Nei fu huo zi zhu mo tao yin ben.Qian you Yongzheng shi nian yu zhi xu.Jian "Xianggang Zhong wen da xue tu shu guan gu ji shan ben shu lu" (2001, p. 62)[Yongzheng pi ; E'ertai deng ji].Qian "Zhao che shu wu", "Nan hai Liu shi", "Liu Anpu hu han zhi zhang", "Xu su shou jin" deng yin
Yu zhong yang wen ge dou
No full text《三忠于》红卫兵.文字: 与中央文革斗;下款: 《三忠于》红卫兵批邓漫画 一九六七年八月卅日绘 ; 印記: 忠于毛主席 忠于毛泽东思想 忠于毛主席的革命路线 .裝裱後高寬: 146 x 38 cm.Title devised by cataloguer."San zhong yu" hong wei bing.Wen zi : Yu Zhong yang wen ge dou; Xia kuan : "San zhong yu" hong wei bing pi Deng man hua 1967 nian 8 yue 30 ri hui ; Yin ji : zhong yu Mao zhu xi zhong yu Mao Zedong si xiang zhong yu Mao zhu xi de ge ming lu xian .Zhuang biao hou gao kuan : 146 x 38 cm
A rational approach to Pi, Notes of a lecture held on the occasion of Pi-day on July 5, 2000 in Leiden
No full textThis article is based on notes for the lecture with the same title, which was held by the author on the occasion of the `Pi in de Pieterskerk' event (Pi-day) on July 5, 2000. The present article expands these notes with short proofs of most of the theorems given, but not proved, during the lecture
Yu Zhong yang wen ge xiao zu bian lun
No full text東風造反团 批邓小平漫画組.文字: 与中央文革小組辯论;下款: 東風造反团 批邓小平漫画組 一九六七年六月一日.裝裱後高寬: 121 x 38 cm.Title devised by cataloguer.Dong feng zao fan tuan pi deng xiao ping man hua zu.Wen zi : Yu Zhong yang wen ge xiao zu bian lun; Xia kuan : Dong feng zao fan tuan pi Deng Xiaoping man hua zu 1967 nian 6 yue 1 ri.Zhuang biao hou gao kuan : 121 x 38 cm
Dataset for Electrogyration in metamaterials: Chirality and polarization rotatory power that depend on applied electric field
No full textDataset supports the paper: Q. Zhang, E. Plum, J. Y. Ou, H. Pi, J. Li, K. F. MacDonald, and N. I. Zheludev (2021), Electrogyration in metamaterials: Chirality and polarization rotatory power that depend on applied electric field. Advanced Optical Materials 9(4), 2001826.
https://doi.org/10.1002/adom.202001826 </span
Optimal multi-loop PI controllers for the multivariable systems
No full textThis paper focuses on the design method of optimal multi-loop proportional integral (PI) controllers for the multiple inputs and multiple outputs (MIMO) systems via using Lyapunov theorems. The design problem of optimal multi-loop PI controller is transformed into a nonlinear constraint optimization (NLCO) problem. The optimal multi-loop PI controller parameters are obtained from solving the NLCO problem. The design method is used to devise the multi-loop optimal PI controller for different types of MIMO plants, and the optimal multi-loop PI controller under different control weight is also given too. The performances and robustness of different multi-loop PI controller's tuning methods are studied. The computer simulation results are presented to demonstrate the design method's effectiveness and optimal MIMO PI controller's better performance and robustness
Optical mode localization sensing based on fiber-coupled ring resonators
No full textMode localization is widely used in coupled micro-electro-mechanical system (MEMS) resonators for ultra-sensitive sensing. Here, for the first time to the best of our knowledge, we experimentally demonstrate the phenomenon of optical mode localization in fiber-coupled ring resonators. For an optical system, resonant mode splitting happens when multiple resonators are coupled. Localized external perturbation applied to the system will cause uneven energy distributions of the split modes to the coupled rings, this phenomenon is called the optical mode localization. In this paper, two fiber-ring resonators are coupled. The perturbation is generated by two thermoelectric heaters. We define the normalized amplitude difference between the two split modes as: (T
M1 − T
M
2)/T
M
1 × 100%. It is found that this value can be varied from 2.5% to 22.5% when the temperature are changed by the value from 0K to 8.5K. This brings a ∼ 2.4%/K variation rate, which is three orders of magnitude greater than the variation rate of the frequency over temperature changes of the resonator due to thermal perturbation. The measured data reach good agreement with theoretical results, which demonstrates the feasibility of optical mode localization as a new sensing mechanism for ultra-sensitive fiber temperature sensing.
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Geometric representation of vector vortex beams: the total angular momentum-conserving Poincaré sphere and its braid clusters
No full textThis paper presents the total angular momentum-conserving Poincaré sphere (TAM-C PS), which offers a novel framework for efficiently characterizing a wide range of vector vortex beams. Unlike other types of Poincaré spheres, the TAM-C PS achieves a better balance between generality and validity, while also providing clearer physical interpretation. By linking the poles of different spheres, the study also introduces two distinct categories of TAM-C PS braid clusters, enabling the representation of various Poincaré spheres within a unified framework. The Poincaré spheres include classical, higher-order, hybrid-order, Poincaré sphere with orbital angular momentum, and TAM-C PS. This is the first clear and unified approach to express multiple Poincaré spheres within a single framework. The TAM-C PS and its braid cluster can be employed to guide the creation of targeted vector vortex light beams, offer a geometric description of optical field evolution, and calculate the geometric phase of optical cyclic evolution
Table1_Potential inhibitory effects of compounds ZK-PI-5 and ZK-PI-9 on trehalose and chitin metabolism in Spodoptera frugiperda (J. E. Smith).DOCX
No full textIntroduction:Spodoptera frugiperda is an omnivorous agricultural pest which is great dangerous for grain output.Methods: In order to investigate the effects of potential trehalase inhibitors, ZK-PI-5 and ZK-PI-9, on the growth and development of S. frugiperda, and to identify new avenues for S. frugiperda control, we measured the content of the trehalose, glucose, glycogen and chitin, enzyme activity, and gene expression levels in trehalose and chitin metabolism of S. frugiperda. Besides, their growth and development were also observed.Results: The results showed that ZK-PI-9 significantly reduced trehalase activity and ZK-PI-5 significantly reduced membraned-bound trehalase activity. Moreover, ZK-PI-5 inhibited the expression of SfTRE2, SfCHS2, and SfCHT, thus affecting the chitin metabolism. In addition, the mortality of S. frugiperda in pupal stage and eclosion stage increased significantly after treatment with ZK-PI-5 and ZK-PI-9, which affected their development stage and caused death phenotype (abnormal pupation and difficulty in breaking pupa).Discussion: These results have provided a theoretical basis for the application of trehalase inhibitors in the control of agricultural pests to promote future global grain yield.</p
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