8,019 research outputs found
Vrsanskysajda Jiang, Xing & Li, 2023, nom. nov.
No full textGenus Vrsanskysajda nom. nov. Sajda Vršanský, 2021: 27 (Blattaria: Corydiidae: Holocompsinae). Preoccupied by Sajda Dworakowska, 1981: 244 (Homoptera: Cicadellidae: Typhlocybinae). Type species: Vrsanskysajda equatorialis (Vršanský in Vršanský et al. 2021) comb. nov. Etymology. The replacement name for the genus is derived from the name of Peter Vršanský, the author of the genus Sajda. Gender: feminine. Distribution. Brezina, Algeria.Published as part of Jiang, Lina, Xing, Jichun & Li, Yujian, 2023, New replacement name for the genus Sajda Vršanský, 2021 (Blattaria: Corydiidae: Holocompsinae), pp. 343-344 in Zootaxa 5270 (2) on page 343, DOI: 10.11646/zootaxa.5270.2.10, http://zenodo.org/record/784970
Inventing A Wolfish China - On Jiang Rong'S Wolf Totem
No full textThe Wolf Totem by Jiang Rong has won great success both in and out of China. Jiang Rong criticizes Han Chinese and embraces the culture of the northern ethnic minority group, the Mongols, because of its stronger sense of competition and domination. In the epilogue of this novel, Jiang argues that the wolf totem was the most ancient totem for all Chinese people and retells Chinese history using this framework. This paper explores the background of the novel and its author, as well as supporting materials the author uses in his proposal concerning the wolf totem, and suggests that the wolf totem is a purely ideological invention of Jiang Rong. This invention reflects Jiang's own philosophy and caters to the cultural needs of modern Chinese people. In inventing the wolf totem, the author uses historical documents, archeological findings, as well as a far-fetched bodily metaphor. However, none of this evidence is validated by scholarly research
Interviews with Yang Jiang
No full textYang Jiang was born, under her real name of Yang Jikang, in 1911. She is the author of a novel, several plays, and a large number of sanwen. Her first writing dates back to 1933, and her latest work, Women sa (We Three), in which she recalls family memories, appeared in July 2003, and has been highly successful, with 180,000 copies sold within two months. However, for thirty years, from 1949 to 1981, for obvious reasons, Yang Jiang preferred to devote herself entirely to teaching, research—she is also an expert on Chinese and foreign literature—, and translation: she is the translator, most notably, of the Chinese version of Don Quixote. She is now devoting herself to the publication of the work of her husband, the scholar Qian Zhongshu (1910-1998). In France she is best known for her narratives of the Cultural Revolution, published by Christian Bourgois.The two interviews that follow were carried out in 2005. Yang Jiang gave written answers to the questions I had sent her, which explains the slightly abrupt nature of our exchanges, given that it was not possible for me, by the nature of the interviews, to respond spontaneously to her words. If we seem to jump from one subject to another, it is because I had asked her to clarify certain details that I planned to use in my research into her work (« La Figure de l’intellectuel chez Yang Jiang » [“The Intellectual in The Work of Yang Jiang”], which became my doctoral thesis in Chinese Studies, under the direction of Isabelle Rabut, Inalco, Paris, December 2005, 404 pp.). Yet, to me, these words of Yang Jiang are of interest just as they are, since she uses words so sparingly and generally refuses to do interviews. In any case, and I am grateful to her for this, she only allowed these words to be published precisely because she had written them herself
Resource allocation and pricing under competition in shared mobility markets
No full textShared mobility services, such as those involving shared rides and shared cars/bikes, are becoming important components of urban transportation systems. There are various advantages of shared mobility, including: (i) significant societal benefit to our environment; for example, bikesharing is considered as a promising way to reduce traffic congestion, harmful gas emissions, and fuel consumption (Qiu and He, 2018); (ii) economic benefits to users, by reducing their travel costs especially those related to owning and maintaining a vehicle; (iii) increased accessibility of users, e.g., by bridging the spatiotemporal gaps in existing transportation service networks (Shaheen et al., 2016); and (iv) creation of new job opportunities; for example, in 2014, the Uber platform created 20,000 new jobs each month (Eadicicco, 2014).
Nevertheless, fierce competition and lack of strategic planning have led to repeated failures of shared mobility services in many cities. For example, oversupply and poor management of bikes – partly due to competition among bikesharing companies – have proven to be counter productive, causing huge wastes of resources and significant societal disbenefits in some countries. The service providers face lots of challenges in their daily operations. For example, in a ridesharing market, significant imbalance between spatiotemporal distributions of vehicle supply and travel demand mandates companies to allocate their resources (e.g., vehicles and drivers) and design pricing strategies optimally to incentivize demand and maximize their profits. It is even more challenging for the service providers to make optimal operation decisions when there are multiple companies in a shared mobility market. For example, in a bikesharing market, where the market share depends on how the competing companies deploy their bikes over time and space as well as how they make pricing decisions, each individual company needs to maximize its profit through optimal pricing, investment, and allocation/rebalancing strategies, in response to not only time-varying demand but also actions of the fellow competitors.
All the above challenges highlight the urgent needs for a systematic modeling framework to analyze the optimal investment, management, and pricing strategies for these companies under competition. This Ph.D. dissertation aims at investigating several important topics in competitive shared mobility markets (both ridesharing and vehicle sharing), including: (i) dynamic pricing and resource allocation in an on-demand ridesharing market; (ii) pricing and matching in a two-sided ridesharing market under competition; (iii) optimal investment and management of dockless shared bikes in a competitive market; and (iv) pricing and resource allocation in a docked bikesharing market under competition.
First, we propose a multi-period game-theoretic model that addresses dynamic pricing and idling vehicle dispatching problems in a one-sided ridesharing market (i.e., with fully compliant drivers/vehicles). A dynamic mathematical program with equilibrium constraints (MPEC) is formulated to capture the interdependent decision-making processes of the mobility service provider (e.g., regarding vehicle allocation) and travelers (e.g., regarding ridesharing and travel path options). An algorithm based on approximate dynamic programming (ADP), with customized subroutines for solving the MPEC, is developed to solve the overall problem. It is shown with numerical experiments that the proposed dynamic pricing and vehicle dispatching strategy can help ridesharing service providers achieve better system performance (as compared with myopic policies) while facing spatial and temporal variations in ridesharing demand.
Then we study the competition between two companies in a two-sided ridesharing market. The two companies share and compete for drivers and riders, and each company optimizes its pricing and driver-rider matching strategies to maximize its profit. The competition is modeled as a generalized Nash equilibrium problem (GNEP). We consider the independent decision-making process of drivers and riders, and show that the game is a potential game which can be solved by systematic approaches. We then investigate the impact of competition and draw managerial insights through a series of hypothetical numerical experiments.
Next, we shift our attention from ridersharing to bikesharing. We develop a game-theoretical framework to model the competition between two bikesharing companies in a dockless bikesharing market. A two-stage multi-period stochastic program is developed to model the decision process of each company regarding the number and spatiotemporal distribution of bikes in a city. The effects of demand elasticity and uncertainty are also discussed. We then show the existence of Nash equilibrium and analytical insights into the solution for several special cases. For general cases, an iterative algorithm is proposed to solve the Nash equilibrium. Numerical experiments are conducted to demonstrate the applicability of the proposed model and to draw insights into the impacts of market competition.
Finally, we consider the competition between two companies in a docked bikesharing market, where the additional decisions on dock-station installation and pricing decisions are also addressed. We model the competition as a GNEP, in which the users’ behaviors are modeled using a set of logical constraints. We then develop reformulation approaches to convert the nonlinear model into a linear one and show how the equilibrium of the GNEP can be obtained. We demonstrate the optimal decisions for the companies, and investigate the market property under competition through hypothetical and real-world case studies.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-08-01The student, Zhoutong Jiang, accepted the attached license on 2021-07-12 at 15:58.The student, Zhoutong Jiang, submitted this Dissertation for approval on 2021-07-12 at 18:56.This Dissertation was approved for publication on 2021-07-13 at 15:32.DSpace SAF Submission Ingestion Package generated from Vireo submission #16873 on 2022-01-12 at 12:54:38Made available in DSpace on 2022-01-12T22:35:11Z (GMT). No. of bitstreams: 2
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Previous issue date: 2021-07-13Embargo set by: Seth Robbins for item 121103
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Dihydrogen Tetrametaphosphate, [P[subscript 4]O][subscript 12]H[subscript 2]][superscript 2] –: Synthesis, Solubilization in Organic Media, Preparation of its Anhydride [P[subscript 4]O[subscript 11]][superscript 2] – and Acidic Methyl Ester, and Conversion to Tetrametaphosphate Metal Complexes via Protonolysis
No full textDihydrogen tetrametaphosphate [P[subscript 4]O[subscript 12]H[subscript 2]] [superscript 2]- (1) can now be synthesized and isolated as its PPN salt ([PPN] + = [N(PPh[subscript 3])[subscript 2]][superscript +]) via treatment of [PPN][subscript 4 ][P[subscript 4]O[subscript 12]] with trifluoroacetic anhydride in wet acetone; this simple procedure affords the oxoacid salt in 94% yield. A pK a of 15.83 ± 0.11 in acetonitrile was determined. [P[subscript 4]O[subscript 12]H[subscript 2]][subscript 2-] reacts with the dehydrating agent N,N′-dicyclohexylcarbodiimide to afford tetrametaphosphate anhydride [P[subscript 4]O[subscript 11]][subscript 2-] (2) in 82% yield, also as the PPN salt. From 2 a monohydrogen tetrametaphosphate ester [P[subscript 4]O[subscript 10] (OH)(OMe)][superscript 2-] (3, 96%) was derived by addition of methanol, illustrating that 2 can function as a reagent for chemical phosphorylation. Addition of water to 2 regenerates 1 quantitatively. Deprotonation of 1 by metal amides in the +2 oxidation state led to the unconventional monomeric tin(II) κ[superscript 4] tetrametaphosphate [Sn(P [subscript 4]O[subscript 12])] [superscript 2-] (4, 78%, a molecular analog of SnO) and binary dimeric chromium(II) bis(μ[subscript 2] ,κ[superscript 2], κ[superscript 2]) derivative [Cr[subscript 2](P[subscript 4]O[subscript 12])[subscript 2]][superscript 4-] (5, 82%). Structural data stemming from single-crystal X-ray diffraction studies for the PPN salts of anions 1-5 are also reported.Swiss National Science Foundatio
Jiang Rong, Le Totem du loup, (Wolf Totem) translated by Yan Hansheng and Lisa Carducci
No full textPublished in China in 2004 by Changjiang wenyi chubanshe, Jiang Rong’s novel Lang tuteng (Wolf Totem) was immediately a phenomenal success. I myself witnessed this success while in China, where bookshops displayed multiple stacks of the book. Its author, Jiang Rong, the pseudonym of Lu Jiamin, was an activist in the Tiananmen Square movement in 1989; now a researcher in social sciences and the husband of Zhang Kangkang, a well-known writer, Jiang Rong maintained a mystery surrounding his iden..
Dang dai Zhongguo jiao yu kuo zhang zhong de gao deng jiao yu ji hui bu ping deng
No full textJiang, Jin.Thesis Ph.D. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 127-138).Abstracts also in Chinese; appendix A includes Chinese.Title from PDF title page (viewed on 09, November, 2016).Jiang, Jin
Liu wang qu: ge, ge ju.
No full text江陵詞 ; 雪厂曲 ; 集體編劇雪厂, 葉瓊, 江凌.Music in number notation.Jiang Ling ci ; Xuechang qu ; ji ti bian ju Xuechang, Ye Qiong, Jiang Ling
Jiang Jieshi : from fascination to disappointment of the bolshevik revolution
No full textThis article is dedicated to Jiang Jieshi's - one of the greatest leaders of 20th century China - attitude to the Bolshevik Revolution. After introduction the author outlines the May Fourth Movement, where it explains the reasons of rejection of the traditional culture by the Chinese intellectuals and their interest in the Russian Revolution. The main part of the article focuses on the reasons of Jiang Jieshi's fascination of the revolution's phenomenon, and on the explanation of his disappointment of the Bolshevik Revolution and the Soviet Russia for which his mission to Moscow in 1923 had played a crucial role
Tychius zhangi Jiang & Caldara 2020, n. sp.
No full text30. Tychius zhangi Jiang & Caldara n. sp. Zoobank.org/ urn:lsid:zoobank.org:act: 0E8C0D6B-E580-43DE-990F-5DC4A26695DC (Figures 97–100, 219–222, 295–296, 333, 346, 358, 389, 425, 453, 480) Material examined. Holotype, male, CHINA: Xinjiang: Tulufan, (20–140 m), 24-VI-1958, leg Guang Wang (IOZCAS). Paratypes, same data as holotype (2 IOZCAS); Jiashi (1160 m), 20-VI-1959, leg Afu Tian (1 IOZCAS); Hejing, 26-VII-1958, leg Changqing Li (1 IOZCAS). Diagnostic description. Length 1.90–2.50 mm (Fig. 97–100). Vestiture on dorsum grayish unicolorous. Rostrum (Fig. 219–222) moderately long, poorly sexually dimorphic, slightly longer in female than in male (Rl/Rw 5.30–5.50 in male, 7.00– 7.50 in female; Rl/Pl 0.88–0.92 in male, 0.93–0.94 in female), thin, in lateral view curved at base, then almost straight to apex. Pronotum (Pw/Pl 1.10–1.17) with slightly rounded sides from base to apex, slightly wider than long. Elytra suboval (Ew/Pw 1.26–1.36; El/Ew 1.50–1.69), with slightly rounded sides in basal half. Femora (Fig. 295–296) unarmed, tibiae (Fig. 333) without sexual characters. Third tarsomere moderately wider than second tarsomere (Fig. 346). Claws (Fig. 358) with small medial teeth as long as 1/3 of claw, separated from claw from base. Male genitalia: body of penis (Fig. 389) in dorsal view moderately large, parallel-sided near to apex, with acutely pointed apex (Fig. 425), in lateral view strongly curved and very subtle, nearly as long as apodeme. Female genitalia: spermatheca see Fig. 453; spiculum ventrale (Fig. 480) with thin arms spaced in basal third but distinctly narrowing to middle, then completely joined to apex. Remarks and comparative notes. This species is closely related to T. tachengicus and T. sulphureus. Tychius zhangi differs by the rostrum of both sexes being longer and that of the female in lateral view of the same width from the antennal insertion to the apex and not distinctly narrowed. The medial teeth of the claw are distinctly smaller and shorter than in the other two species. Finally, the body of the penis in dorsal view is moderately large, parallelsided near to apex, with acutely pointed apex, in lateral view strongly curved and very subtle, nearly as long as an apodeme. Etymology. The name of this species is the family name of our corresponding author Prof. Runzhi Zhang. We would like to thank him for supporting our work in weevil taxonomy. Biology. No data are available. Distribution. China (XIN)Published as part of Jiang, Chunyan, Caldara, Roberto & Zhang, Runzhi, 2020, The genus Tychius Germar (Coleoptera: Curculionidae: Curculioninae) in China, with description of three new species, pp. 1-62 in Zootaxa 4856 (1) on pages 32-33, DOI: 10.11646/zootaxa.4856.1.1, http://zenodo.org/record/441131
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