305,757 research outputs found
Motivations and strategies for a real revaluation of the Yuan.
Full text linkMost Western economists and policymakers agree that the Yuan is significantly undervalued and push for its quick nominal revaluation. This paper defends that many domestic and foreign factors could be responsible for the Yuan’s undervaluation, and the People’s bank of China (PBC) cannot optimally invest growing foreign exchange reserves. It provides a theoretical framework to discuss the optimal strategy associating a gradual nominal revaluation of the Yuan with higher inflation, and structural and macroeconomic policies to bring the real exchange rate to its equilibrium level. This strategy allows absorbing external imbalances while laying down the foundation for China’s long-term growth.Real revaluation; Yuan; Renminbi (RMB); foreign exchange reserves; external imbalance; macroeconomic adjustment measures.
An efficient gradient method using the Yuan steplength
No full textWe propose a new gradient method for quadratic programming, named SDC, which alternates some steepest descent (SD) iterates with some gradient iterates that use a constant steplength computed through the Yuan formula. The SDC method exploits the asymptotic spectral behaviour of the Yuan steplength to foster a selective elimination of the components of the gradient along the eigenvectors of the Hessian matrix, i.e., to push the search in subspaces of smaller and smaller dimensions. The new method has global and R-linear convergence. Furthermore, numerical experiments show that it tends to outperform the Dai–Yuan method, which is one of the fastest methods among the gradient ones. In particular, SDC appears superior as the Hessian condition number and the accuracy requirement increase. Finally, if the number of consecutive SD iterates is not too small, the SDC method shows a monotonic behaviour
Xenasmatella roseobubalina Z. B. Liu & Yuan Yuan 2022, sp. nov.
No full textXenasmatella roseobubalina Z.B. Liu & Yuan Yuan, sp. nov. (Figs. 2–3) MycoBank no.— MB 843185 Etymology:—‘ roseobubalina ’ (Lat.): refers to the species having a pinkish buff hymenophore. Type:— CHINA. Yunnan Province, Mengla County, Yulingu, on rotten bamboo, 18 August 2019, Y.C. Dai, Dai 20506 (Holotype, BJFC 032174, isotype in SWFC). Description:—Basidiomata annual, resupinate, adnate, detachable, membranaceous, without odor or taste when fresh, brittle when dry, up to 6.5 cm long, 2.5 cm wide and less than 0.1 mm thick. Hymenial surface smooth, pinkish buff (5A3), uncracked when fresh and dry, and with some scattered crevices upon drying. Sterile margin distinct, fimbriate and white; subiculum not found. Hyphal structure:—Hyphal system monomitic; clamped, hyaline, thin-walled generative hyphae in subhymenium, frequently branched, 2–8 µm in diameter, IKI–, CB–. Abundant crystalline matter present among hyphae. Tissues unchanged in KOH. Hymenium:—Cystidia and cystidioles absent; basidia pleural or clavate, with 4 sterigmata and a basal clamp connection, 20–26 × 5–8 µm; basidioles in shape similar to basidia, but shorter than basidia. Basidiospores:—Broadly ellipsoid to subglobose, hyaline, thin-walled, warted, IKI–, CB–, (3.5–)3.8–5(–6) × 3.3–4(–5) µm, L = 4.43 µm, W = 3.9 µm, Q = 1.14 (n = 60/1).Published as part of Liu, Zhan-Bo & Yuan, Yuan, 2022, A new species of Xenasmatella (Polyporales, Basidiomycota) from southern China, pp. 185-192 in Phytotaxa 556 (2) on pages 188-190, DOI: 10.11646/phytotaxa.556.2.8, http://zenodo.org/record/696603
The cooperative breeding of Taiwan Yuhinas (Yuhina brunneiceps). American Ornithologists’
No full textEffects of Thinning on the Bird and Small Mammal Communities in the China-fir（Cunninghawia lanceolata）Plantation. .
No full textMotivations and strategies for a real revaluation of the Yuan
Full text linkMost Western economists and policy makers agree that the Yuan is significantly undervalued and push the Chinese government for a large nominal revaluation of the Yuan. This paper, while surveying recent research on Chinese exchange rate policy, gives some new insights into this issue. Notably, this paper defends that China is not solely responsible for the Yuan’s undervaluation, the Chinese central bank cannot optimally invest an increasing amount of foreign currency reserves, and the Yuan’s nominal revaluation is not the only way to resolve the problem. After having analyzed the advantages and disadvantages of a nominal versus a real revaluation of the Yuan for the Chinese economy, I advocate and analyze, besides a modest nominal revaluation, a multitude of alternative policies to achieve a complete revaluation of the Yuan in real terms, which allows absorbing external disequilibrium while laying down the foundation for the long-term growth of the Chinese economy.Renminbi (RMB), revaluation of the Yuan, foreign exchange reserves, external disequilibrium, measures of macroeconomic adjustment.
Reconstruction of Yuan Ming Yuan on Computer
No full textYuan Ming Yuan is regarded as a masterpiece of ancient Chinese architecture and garden. Its unfortunate ruin by the British and French Army more than 100 years ago became a shameful record in the history of China. Since then, although many Chinese have appealed for its reconstruction, a rebuilding project is believed to be impractical both from the economic and the historical aspect. So we develop a study on the task by using computer graphic technology as a visualization method. This paper will describe the process of modelling and rendering developed by 3rd year undergraduates and our continued attempt to create a VRML world on WWW
Tian guo hua yuan
No full text安徒生原著 ; 蔡慧冰改寫 ; 陳楠舟插圖.改寫自Andersen的Paradisets have.Antusheng yuan zhu ; Cai Huibing gai xie ; Chen Nanzhou cha tu
Cerrena zonata H. S. Yuan, Mycological Progress
No full textCerrena zonata (Berk.) H.S. Yuan, Mycological Progress 13 (2): 363 (2013) Specimens examined: Zixishan National Forest Park, Chuxiong, Yunnan Province, China, the trunk of angiosperm, 1 July 2018, CLZhao 7067, CLZhao 7167; the stump of angiosperm, 2 July 2018, CLZhao 7446, CLZhao 7579, CLZhao 7607; 17 August 2018, CLZhao 7676 (SWFC) (GenBank: ITS-OM955819).Published as part of Zhang, Xiaojie, Yuan, Qi, Su, Jiangqing & Zhao, Changlin, 2023, Diversity of wood-decaying fungi in Zixishan area (Hengduan Mountains), Yunnan Province, China, pp. 113-138 in Phytotaxa 612 (2) on page 125, DOI: 10.11646/phytotaxa.612.2.1, http://zenodo.org/record/832347
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