155,202 research outputs found
The effect of BisGMA on cyclooxygenase-2 expression, PGE2 production and cytotoxicity via reactive oxygen species- and MEK/ERK-dependent and -independent pathways
No full textCopyright © 2009 Elsevier Ltd All rights reserved.Mei-Chi Chang, Li-Deh Lin, Chiu-Po Chan, Hsiao-Hua Chang, Lin-I. Chen, Hsueh-Jen Lin, Hung-Wei Yeh, Wan-Yu Tseng, Po-Shuen Lin, Chiu-Chun Lin and Jiiang-Huei Jenghttp://www.elsevier.com/wps/find/journaldescription.cws_home/30392/description#descriptio
Chiu-An Chang Directory Photo 01
No full textDirectory photo of Chiu-An Chang taken in 1985.https://digitalcommons.dmu.edu/archive_images/2929/thumbnail.jp
Reply to “Comment on ‘Comparison of static-feedforward and dynamic feedback neural networks for rainfall-runoff modeling’ by Y.M. Chiang, L.C. Chang, and F.J. Chang, 2004. Journal of Hydrology 290, 297–311”
No full textUsing a hybrid genetic algorithm–simulated annealing algorithm for fuzzy programming of reservoir operation
No full textWe present a novel approach for optimizing reservoir operation through fuzzy programming and a hybrid evolution algorithm, i.e. genetic algorithm (GA) with simulated annealing (SA). In the analysis, objectives and constraints of reservoir operation are transformed by fuzzy programming for searching the optimal degree of satisfaction. In the hybrid search procedure, the GA provides a global search and the SA algorithm provides local search. This approach was investigated to search the optimizing operation scheme of Shihmen Reservoir in Taiwan. Monthly inflow data for three years reflecting different hydrological conditions and a consecutive 10-year period were used. Comparisons were made with the existing M-5 reservoir operation rules. The results demonstrate that: (1) fuzzy programming could effectively formulate the reservoir operation scheme into degree of satisfaction α among the users and constraints; (2) the hybrid GA-SA performed much better than the current M-5 operating rules. Analysis also found the hybrid GA-SA conducts parallel analyses that increase the probability of finding an optimal solution while reducing computation time for reservoir operation
Luzonacera chang Li & Li 2017, sp. nov.
No full textLuzonacera chang Li & Li, sp. nov. (Figs 1–2, 15) Material examined. Holotype male, Philippines, Rizal Province, Antipolo City, San Jose Village, Mystical Cave (large cave with a bird colony, 14º36.353’N, 121º12.521’E; elev. 212 m), 04 June 2015, leg. F. Ballarin & Y. Li. Paratypes. 1 male, 2 females, same data as holotype (IZCAS). Etymology. The species name is a noun in apposition derived from the Chinese pinyin "cháng" ("long") and refers to the long embolus. Diagnosis. Specimens of the two species of Luzonacera are very similar but can be distinguished as follows. The carapace in both sexes of L. chang Li & Li, sp. nov. has a medial rounded brown area (versus three longitudinal bands in both sexes of L. duan Li & Li, sp. nov.). The male of this species is easily recognized by the long spiral embolus (versus shorter in L. duan Li & Li, sp. nov.) and the relatively light constriction of the central part of the bulb (versus constriction more pronounced in L. duan Li & Li, sp. nov.). The female is diagnosed by the two pairs of curved, elongate, distally swollen spermathecae (versus curves of spermathecae relatively more twisted in L. duan Li & Li, sp. nov.). Description. Male (holotype). Total length 2.72; carapace 0.85 long, 0.92 wide; abdomen 1.70 long, 0.66 wide. Carapace round, pale yellow, with rounded brown patch medially and triangular brown patch posterior to ocular area (Fig. 2C). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae brown with lamina, promargin with one tooth, retromargin with two small teeth, posterior surface of fang with 25 small denticles. Clypeus slanting, brown with two pale rounded areas laterally. Labium slanting, yellow. Sternum yellow, with large brown spots medially. Abdomen elongate, with complex patterns dorsally and ventrally. Legs brown; measurements: I 15.75 (4.00, 0.30, 4.10, 4.75, 2.60), II 10.97 (3.03, 0.33, 3.13, 3.40, 1.08), III 7.27 (2.13, 0.35, 2.04, 1.92, 0.83), IV 11.69 (3.44, 0.32, 3.36, 3.52, 1.05). Palp (Figs 1 A–D): tibia remarkably swollen, cymbium with distal protrusion; bulb yellow, pyriform; conductor absent; embolus a slender spiral extending subapically from bulb. Female (paratype). Similar to male in coloration and general features but slightly larger (Figs 2 D–E). Measurements: total length 3.00; carapace 0.86 long, 0.88 wide; abdomen 1.90 long, 1.02 wide. Leg measurements: I - (3.72, 0.19, -, -, -), II 9.25 (2.56, 0.26, 2.80, 2.60, 1.03), III 9.92 (2.81, 0.28, 2.94, 3.06, 0.83), IV 6.24 (1.48, 0.31, 1.84, 1.80, 0.81). Vulva with two pairs of elongate, curved spermathecae with distal ends swollen (Fig. 2A). Distribution. Known only from the type locality (Fig. 15).Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 397-400, DOI: 10.11865/zs.201717, http://zenodo.org/record/558565
Multi-objective evolutionary algorithm for operating parallel reservoir system
No full textThis paper applies a multi-objective evolutionary algorithm, the non-dominated sorting genetic algorithm (NSGA-II), to examine the operations of a multi-reservoir system in Taiwan. The Feitsui and Shihmen reservoirs are the most important water supply reservoirs in Northern Taiwan supplying the domestic and industrial water supply needs for over 7 million residents. A daily operational simulation model is developed to guide the releases of the reservoir system and then to calculate the shortage indices (SI) of both reservoirs over a long-term simulation period. The NSGA-II is used to minimize the SI values through identification of optimal joint operating strategies. Based on a 49 year data set, we demonstrate that better operational strategies would reduce shortage indices for both reservoirs. The results indicate that the NSGA-II provides a promising approach. The pareto-front optimal solutions identified operational compromises for the two reservoirs that would be expected to improve joint operations
Figure 1. Luzonacera chang Li & Li in Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia
No full textFigure 1. Luzonacera chang Li & Li, sp. nov., male holotype. A. Palp, ventral view. B. Palpal bulb, prolateral view. C. Palp, prolateral view. D. Palp, retrolateral view. Scale bars: B–D = 0.1 mm.Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 398, DOI: 10.5281/zenodo.558565
Figure 2. Luzonacera chang Li & Li in Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia
No full textFigure 2. Luzonacera chang Li & Li, sp. nov., male holotype and female paratype. A. Spermathecae, dorsal view. B. Female epigyne, ventral view. C. Male habitus, dorsal view. D. Female habitus, dorsal view. E. Female habitus, ventral view. Scale bars: A = 0.05 mm; C–E = 0.5 mm.Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 399, DOI: 10.5281/zenodo.558565
Yang Hui's commentary on the Ying Nu chapter of the Chiu Chang Suan Shu
No full textAbstractOne of the many commentators of the Chiu chang suan shu (Nine Chapters on the Mathematical Art), written approximately in the first century, is Yang Hui, who wrote Hsiang chieh chiu chang suan fa (A Detailed Analysis of the Mathematical Methods in the “Nine Chapters”) and the Chiu chang suan fa tsuan lei (Reclassification of the Mathematical Methods in the “Nine Chapters”) in 1261.The seventh chapter of the Chiu chang suan shu is called ying nu or ying pu tsu meaning “too much and not enough” or “surplus and deficiency.” It has been pointed out by historians of mathematics that the method known in Europe as the Rule of False Position is the same as the Chinese ying pu tsu method used in this chapter. Yang has made a detailed and thorough study of the twenty problems in this chapter. He has not only explained and expanded the method of ying pu tsu, but he has also suggested alternative and simpler solutions for some of the problems.This paper endeavours to translate the twenty problems, to analyse the ying pu tsu method, and above all to present a critical study of Yang's alternative methods
Real-Time Reservoir Operation for Flood Control Using Artificial Intelligent Techniques
No full textReal-time reservoir operation for flood control is a continuous and instant decision-making process based on relevant operating rules, in addition to the immediate rainfall and hydrological information. To reduce downstream flood peak stage and store floodwaters for future use, reservoir operational for flood control plays a critical role. The aim of this study is to establish a real-time reservoir operational model, the intelligent fuzzy flood control model (IFFCM), for flood control to ensure reservoir safety and store floodwaters for future use. The model includes two major artificial intelligent processes: knowledge acquirement and implementation, and fuzzy inference system. The IFFCM is first built by extracting the knowledge from the optimal operating hydrographs of typhoon events obtained by genetic algorithm (GA) and is then inferred reservoir release by the adaptive network-based fuzzy inference system (ANFIS). The Shihmen Reservoir in northern Taiwan is used as a case study with particular attention to the operations of 26 flood events by the proposed method. The results demonstrate that the proposed model can perform much better than historical reservoir operations and effectively reduce downstream peak flood stage and store floodwaters for future use
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