31,214 research outputs found
Jing jing de Jialing Jiang.
No full text書名據封面."大江影業公司出品".Shu ming ju feng mian."Da jiang ying ye gong si chu pin"
Investment, linguistic capital and identity in Chinese university students' EMI experience
No full textIn line with China’s vision for international education, English medium instruction (EMI) is booming in Chinese higher education, which positions Chinese students in circumstances where they need to negotiate among different commitments, roles, identities, and desires involving individual, national and international agendas. This paper draws on the investment theory and model developed by Norton and Darvin to explore Chinese students’ EMI experience in respect of their investment goals, capital, and future identities underpinning their engagement. Informed by the concepts of English as a lingua franca and translanguaging, the paper deconstructs the notion of language in EMI and draws on the data retrieved in one of the top universities based in Beijing that offers EMI courses to Chinese students to examine their investments revolving around the issue of language. The findings show that Chinese students focus on disciplinary identities and national identities that EMI courses facilitate but refrain from imagining their engagement in the international work environment due to low esteems about translingualism as linguistic resources and admirations for English monolingualism as capital that would enable them to embrace international identities. The paper concludes by calling for developing critical language awareness in EMI implementation
Ying qiu ji
No full text繆艮原著 ; 江家楨註釋].書名據封面.Miao Gen yuan zhu ; Jiang Jiazhen zhu shi].Shu ming ju feng mian
A new species of Aphis (Aphidinae: Aphidini) feeding on Rubus from China
No full textXu, Ying, Jiang, Liyun, Chen, Jing, Qiao, Gexia (2022): A new species of Aphis (Aphidinae: Aphidini) feeding on Rubus from China. Zootaxa 5183 (1): 282-292, DOI: 10.11646/zootaxa.5183.1.2
Anaerobic digestion of food and vegetable waste
No full textFood and vegetable wastes contribute a large percentage of the organic fraction of municipal solid waste (OFMSW), and anaerobic digestion potentially offers an ideal method for their management. Their chemical composition can, however, lead to unstable operation and in extreme cases complete process failure has been reported with this type of substrate. Semi-continuous trials on vegetable waste were carried out in laboratory-scale digesters with daily feed additions at different organic loading rates (OLR). At an OLR of 2g volatile solids (VS) 1-1 day-1 the methane yield was 0.345 1g-1 VS added, or 99% of that found in a biochemical methane potential (BMP) test. Higher OLRs led to reduced methane yield and energy conversion efficiency and to a drop in digester pH which could not be effectively controlled by alkali additions. To maintain digester stability it was necessary to supplement with additional trace elements including tungsten, which allowed OLR of up to 4g VS 1-1 day-1 to be achieved. Stability was also improved by the addition of yeast extract (YE). Co-digestion with card packaging and cattle slurry proved an effective means of restoring and maintaining stable operating conditions. Digesters fed on source segregated domestic food waste showed a long term pattern of failure as a result of the build-up of ammonia in the digester and the accumulation of volatile fatty acids, in particular propionic acid. The research gathered evidence to link this to an enzyme deficiency which was caused by a lack of selenium, or possibly other trace elements. Results from a fractional factorial designed batch experiment showed the importance of Se in the degradation of propionic acid, and indicated that Mo and Co might also play a role in this respect. Semi-continuous trials using laboratory-scale digesters also confirmed the requirement for Se which proved to be essential for both propionate oxidation and syntrophic hydrogenotrophic methanogenesis. Supplementation with Se allowed the digesters to operate at substantially higher OLR. At high loadings cobalt also becomes limiting, due to its role either in acetate oxidation in a reverse Wood-Ljungdahl pathway or in hydrogenotrophic methanogenesis. Critical Se and Co concentrations were established as 0.16 and 0.22mg kg-1 fresh matter feed at moderate loading. At this dosage the OLR could be raised to 5g VS 1-1 day-1 with specific and volumetric biogas productions of 0.75m3 kg-1 VS added and 3.75m3 m-3 day-1 at a standard temperature and pressure (STP) of 0°C and 101.325 kPa, representing a significant increase in process performance and operational stability. A tracer experiment using a radio-labelled isotope [2-14C] of acetate proved that under high ammonia concentrations, hydrogenotrophic methanogenesis was the dominant pathway leading to methane production in food waste digesters. A rapid non-derivatisation gas chromatographic method for quantification of palmitic, stearic and oleic acids was developed. These long chain fatty acids (LCFA) can accumulate in anaerobic digesters, and a simple extraction method was also developed to permit a more rapid sample turn-around time. The method was tested on digestate from food waste digesters. It was observed that the concentrations of stearic and palmitic acid in digesters routinely supplemented with trace elements were proportionally lower with respect to their relative loading when compared to those without supplementation. It was concluded that both Se and Co were deficient in source segregated domestic food waste collected in the UK, and that supplementation with these elements could improve digestion stability, allow higher OLR to be applied, and in doing so improve the energy yield of the digestion process
Improving pyrolysis oil processing via electrochemistry for plastics and biomass feedstock recycling
No full textJiang, Ying - Associate SupervisorThe environmental pressures of plastic waste accumulation and fossil fuel
dependency have driven interest in technologies that enable the sustainable
conversion of waste into valuable products. Pyrolysis offers a promising route for
recycling biomass and plastic feedstocks into liquid fuels and chemical
intermediates. However, the resulting pyrolysis oils are typically unstable,
oxygen-rich, and incompatible with existing fuel infrastructure. This thesis
investigates electrochemical hydrogenation (ECH) as a low-temperature,
electrically-driven method for upgrading these oils under mild conditions using
water as a hydrogen source, supporting circular economy goals.
The research combines model compound studies with real pyrolysis oil
experiments, using a PtRu/ACC (platinum–ruthenium on activated carbon cloth)
catalyst. Benzoic acid exhibited complete selectivity for cyclohexane carboxylic
acid (100%) under optimised conditions. Notably, the presence of phenol
enhanced benzoic acid conversion by up to 10%, due to a novel hydrogen-bond-
assisted mechanism proposed in this work. This mechanism, which facilitates
adsorption and lowers activation barriers, was supported by density functional
theory (DFT) calculations and represents a previously unreported pathway in
electrochemical hydrogenation. When applied to real bio-oils derived from
pinewood and wheat straw, ECH reduced oxygenated species and increased
alcohol content in the aqueous phase potentially improving both stability and
energy content.
The oily phase was treated in methanol with conductivity enhancers. While NaCl
improved reactivity, it caused significant catalyst degradation.
Tetrabutylammonium hexafluorophosphate (TBAHFP), initially considered less
corrosive, led to greater catalyst degradation but higher conversion of identifiable
compounds, highlighting a trade-off between catalyst durability and product yield.
Advanced characterisation (GC-MS, FTIR, SEM, EDS, XRD, Raman) confirmed
these transformations and catalyst changes.iii
This work offers mechanistic insight and practical guidance for advancing
electrochemical upgrading of pyrolysis oils, providing a foundation for scalable,
low-carbon processes that integrate waste into the energy and chemical sectors.PhD in Energy and Powe
China, Mao Zedong and his wife Jiang Qing in Yan'an
No full textCaption from Report from Red China: Mao Tze-tung [Mao Zedong], Chairman of the Chinese Communist Party, with his wife, the former Lan Ping [Jiang Qing], a well-known Shanghai motion picture actress. She has been a member of the Chinese Communist Party since 1933.China: Red ChinaForman, H. (1946). Report from Red China. London: Robert Hale Limited.; Forman, H. (1946). Xi xing man ying. Shanghai: Shanghai shu bao gong si.GrayscaleForman Nitrate Negatives, Box 1
Jin gang ying xu 金 剛 暎 序.
No full textJin gang jing ying 金 剛 經 暎Jin gang ying 金 剛 暎Numérisation effectuée à partir d'un document original.Déb. seulement. Le nom de l'auteur, mutilé, manque. Subsiste seulement son lieu d'origine : Jiang (ling ?) 江 (陵 ?). Préface, inédite, du Jing gang ying de Bao da 寶 達, dont le j. shang est éd. in T . 2734, vol. 85. L'ouvrage est signalé sous le titre Jin gang jing 經 ying en 3 j. dans le catalogue de Enchin rédigé en 858 (T . 2173, vol. 55, p. 1105 c 1). Écr. kai. Encre foncée. 1 car. annulé par un pointillé. 11 col. mutilées à la partie inf. Marge sup. non respectée, 3,5 cm env., remplacée par une nouvelle marge sup. 1,7 cm env. Réglures 1,7 cm
IMR887276 Supplemental Material - Supplemental material for Low-dose apatinib monotherapy in advanced chemotherapy-refractory small cell lung cancer: a case series and literature review
No full textSupplemental material, IMR887276 Supplemental Material for Low-dose apatinib monotherapy in advanced chemotherapy-refractory small cell lung cancer: a case series and literature review by Ying-ying Liu, Tao Chen, Dan Shen, Wei-yun Zhang, Chang-guo Wang, Jun-hong Jiang and Da-xiong Zeng in Journal of International Medical Research</p
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