200,192 research outputs found
From Han tradition to Tang elegance
No full textThis long paper is the comprehensive essay to the exhibition China at the court of the emperors. Unknown masterpieces from Han Tradition to Tang elegance (25-907), held at Palazzo Strozzi, Florence, in Spring 2008.
It thoroughly explains the development of the arts in China from the Han to the Tang dynasties against the historical and cultural context of the time, underlying the new perspective recently put forward on the basis of the latest archaeological excavations. These have driven scholars to regard the period of division between Han and Tang no longer as a ‘dark’ epoch of unrest, during which the country was politically and culturally fragmented, but instead as a moment of regeneration and flowering of the arts, stimulated by intercultural exchanges with Rome, Persia, India and Central Asia. From this new viewpoint, it appears clear that the great renaissance of the seventh to eighth centuries was the culmination of a long process that had germinated in the second to third centuries
Stenoloba acutivalva Han & Kononenko 2009
No full textStenoloba acutivalva Han & Kononenko 2009 (Figs 19, 52) Stenoloba acutivalva Han & Kononenko 2009, Zootaxa 2268: 18, figs 17, 34 (Holotype: male, China, Aut. Reg. Guangxi, Guilin, IZCAS, Beijing). Material examined. 2 males, 1 female, China, Prov. Yunnan, Simao, Beishan, 17.vi.2013, H.L. Han & C. Zhang leg., slide HHL-6142-1, HHL-6143-1; female HHL-6144-2, coll. NEFU. Diagnosis. This and next two species belong to the S. viridescens species group, represented in China by four species (S. viridescens is not treated here). Externally S. acutivalva (Fig. 19) differs from its allies by simpler forewing pattern, clearly marked with moss-green, and with white basal field, inner part of subbasal field and subtornal mark. Orbicular not expressed, reniform marked as 1–2 blackish dots, or not or expressed, as greyish suffusion. The male genitalia (illustrated by Han & Kononenko 2009) are characterized by the structure of the valva with upcurved acute apex and quadrangular plate in apical part of costal margin of valva. The structure of aedeagus and vesica are similar to that of allied species. The female genitalia (Fig. 52) could be characterized by quadrangular papillae anales, elongate, slightly conical shape of antrum, and rather long sclerotised ductus bursae with characteristic for the species-group and for the species sclerotised appendix, which joining with posterior part of ductus almost under straight angle; corpus bursae rounded and wrinkled. Distribution. South China (Aut. Reg. Guangxi, Prov Yunnan). Notes. The female genitalia are described for the first time.Published as part of Han, H. L. & Kononenko, V. S., 2018, Twelve new species and four new records of Stenoloba Staudinger 1892 from China (Lepidoptera, Noctuidae: Bryophilinae), pp. 301-327 in Zootaxa 4388 (3) on page 313, DOI: 10.11646/zootaxa.4388.3.1, http://zenodo.org/record/118855
Receding Horizon H (infinity) Control for Input-Delayed Systems
No full textWe propose the receding horizon H (infinity) control (RHHC) for input-delayed systems. A new cost function for a finite horizon dynamic game problem is first introduced, which includes two terminal weighting terms parameterized by a positive definite matrix, called a terminal weighing matrix. Secondly, the RHHC is obtained from the solution to the finite dynamic game problem. Thirdly, we propose an LMI condition under which the saddle point value satisfies the nonincreasing monotonicity. Finally, we show the asymptotic stability and H (infinity) boundedness of the closed-loop system controlled by the proposed RHHC. The proposed RHHC has a guaranteed H (infinity) performance bound for nonzero external disturbances and the quadratic cost can be improved by adjusting the prediction horizon length for nonzero initial condition and zero disturbance, which is not the case for existing memoryless state-feedback controllers. It is shown through a numerical example that the proposed RHHC is stabilizing and satisfies the infinite horizon H (infinity) performance bound. Furthermore, the performance in terms of the quadratic cost is shown to be improved by adjusting the prediction horizon length when there exists no external disturbance with nonzero initial condition.Delft Center for Systems and ControlMechanical, Maritime and Materials Engineerin
Dataset to support the article "High-resolution 𝜙-OFDR using phase unwrap and nonlinearity suppression"
No full textThis dataset is used for realizing high resolution of phase-sensitive Optical Frequency Domain Reflectometer. It is associated with the research paper:
Guo Z, Yan J, Han G, Yu Y, Greenwood D and Marco J (2023) "High-Resolution φ-OFDR Using Phase Unwrap and Nonlinearity Suppression". Journal of Lightwave Technology, 41 (9), 2885-2891. (https://doi.org/10.1109/JLT.2023.3236775).
The data is presented as an excel file:
High_resolution_OFDR_using_phase_unwrap_and_nonlinearity_suppression.xlsx
This work was funded by High Value Manufacturing Catapult and the Engineer and Physical Sciences Research Council - EPSRC EP/V000624/1. The author Gaoce Han would like to acknowledge the China Scholarship Council for sponsoring.</span
A closed-form solution to the discrete-time Kalman filter and its applications
No full textThis paper presents a closed-form solution to the discrete-time Kalman filter and its applications. We first represent the Kalman filter in terms of model parameters without using the Riccati equation and requiring any artificial conditions such as invertibility of a system matrix and no system noises. Replacing the initial time with the fixed-lag time to achieve the finite memory with respect to inputs and outputs, and choosing the proper initial covariances on the recent finite horizon, we easily obtain the minimum variance finite memory filter and then propose its iterative computation algorithm. As another application, a closed-form solution to the difference Riccati equation on the finite horizon is utilized to obtain a stabilizing gain matrix of a Luenberger-type filter as in Ackermann's formula. (C) 2010 Elsevier B.V. All rights reserved.X113sciescopu
sj-tiff-3-han-10.1177_15589447231174480 – Supplemental material for Risk Factors for Secondary Revision After Finger Amputations
No full textSupplemental material, sj-tiff-3-han-10.1177_15589447231174480 for Risk Factors for Secondary Revision After Finger Amputations by Nikhil Adapa, Zachary B. Adkins, Krystin A. Hidden and Kanu S. Goyal in HAND</p
sj-docx-1-han-10.1177_15589447231174480 – Supplemental material for Risk Factors for Secondary Revision After Finger Amputations
No full textSupplemental material, sj-docx-1-han-10.1177_15589447231174480 for Risk Factors for Secondary Revision After Finger Amputations by Nikhil Adapa, Zachary B. Adkins, Krystin A. Hidden and Kanu S. Goyal in HAND</p
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