1,959 research outputs found
Representations of the pheasant in the Song and Yuan dynasties: Shifting identities of the ideal literati
No full textThe pheasant or phasianidae, also known in Chinese as the zhi雉, jinji錦雞, shanji山雞, jinji金雞 and bi鷩is regarded a beautiful creature with colourful patterned feathers. It was an established subject matter serving as an auspicious sign for wealth and fortune in the genre of flower-and-bird painting by the Tang dynasty (618-907). My study traces the ways in which the pheasant motif came to represent the ideal scholar gentleman in the Song dynasty (960-1279) and the Yuan dynasty (1271-1368). I propose that the developments in the pictorial representations of pheasant were aligned with the shift in the identity of the literati from the domination of elite men, that is the aristocrats or educated scholar-officials in the Song. In the Yuan dynasty, as wealthy merchants laid claims to culture, they emulated elite artistic practices in efforts to assert their social status. I demonstrate that the pheasant was valued as a symbol of court official with integrity in the Northern Song dynasty (960-1127) and was then used as a motif to represent a victim or prey under attack in the Southern Song dynasty (1127-1279). The meaning of pheasant in visual representations further expanded and evolved to stand for a loyalist recluse scholar and wealthy educated elite in Jiangnan in the Yuan dynasty
Efficiency of natural organic substrates for the sulfate removal from mine drainage impacted waters
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Selection of effective organic mixtures to adapt the AMD passive treatment system to Korea
No full text3′-UTR engineering to improve soluble expression and fine-tuning of activity of cascade enzymes in Escherichia coli
No full text3'-Untranslated region (3'UTR) engineering was investigated to improve solubility of heterologous proteins (e.g., Baeyer-Villiger monooxygenases (BVMOs)) in Escherichia coli. Insertion of gene fragments containing putative RNase E recognition sites into the 3'UTR of the BVMO genes led to the reduction of mRNA levels in E. coli. Importantly, the amounts of soluble BVMOs were remarkably enhanced resulting in a proportional increase of in vivo catalytic activities. Notably, this increase in biocatalytic activity correlated to the number of putative RNase E endonucleolytic cleavage sites in the 3'UTR. For instance, the biotransformation activity of the BVMO BmoF1 (from Pseudomonas fluorescens DSM50106) in E. coli was linear to the number of RNase E cleavage sites in the 3'UTR. In summary, 3'UTR engineering can be used to improve the soluble expression of heterologous enzymes, thereby fine-tuning the enzyme activity in microbial cells.1184Ysciescopu
Relationship between the measured and simulated grain yield (GY) in winter wheat across 4 years.
No full text<p>Note: x represents the simulated GY, y represents the measured GY. The intercept represents the relative error between the simulated GY and the measured GY. The slope represents the consistency between the simulated GY and the measured GY.</p
Comparison of Spring Forecasting Ability between GY-WRF and GRAPES in Danghe South Mountain
No full textThe Plateau Numerical Weather Forecast System (GY-WRF) was evaluated for its ability to forecast spring weather in Danghe South Mountain. The forecasted temperature, relative humidity, and wind were compared with GRAPES using data from four automatic weather stations in March and April 2022. The results showed that GY-WRF had the smallest mean absolute error (MAE) for each factor at station 4, and a small MAE for temperature, relative humidity, and wind speed at station 2, but a slightly larger MAE for wind direction. GRAPES had a small MAE for wind direction, and a similar trend in wind speed MAE to GY-WRF. GY-WRF was better at predicting the diurnal variation trend of temperature, while GRAPES had a better effect on forecasting the minimum temperature. Both GY-WRF and GRAPES were capable of pre-dicting the trend of wind direction conversion at each station, with GY-WRF being better at predicting the diurnal variation trend of wind speed
Ny gymnasieskola : En beskrivning av GY-2007
No full textSAMMANFATTNING Den här uppsatsen behandlar den nya gymnasieskolan, GY-2007, som ska tas i bruk från och med 1 juli 2007. De reformer som ledde fram till dagens gymnasieskola redovisas för att få en bild av hur den vuxit fram. GY-2007 beskrivs med utgångspunkt i den regeringsproposition 2003/04:140 Kunskap och kvalitet – elva steg för utvecklingen av gymnasieskolan, som ligger till grund för reformen. I uppsatsen jämförs den nuvarande gymnasieskolan med framtidens gymnasieskola, GY-2007, för att peka på de skillnader som finns och vad de kan tänkas innebära. Författarens syfte med uppsatsen är att ta reda på mer om och beskriva GY-2007. De frågor som ställs är finns det några likheter och skillnader mellan dagens gymnasieskola och GY- 2007 och vad kan de tänkas innebära? Det är endast förändringarna som rör ungdomsgymnasiet som behandlas. Det finns inga stora reformnyheter med GY-2007, ett par steg undantagna. GY-207 bygger på nuvarande gymnasieskolas reformer och de förändringar som gjorts är i vissa fall återgång till tidigare system eller utveckling av det nuvarande. Materialet som behandlats är till största del offentligt tryck som statens offentliga utredningar (SOU) och regeringspropositioner. En del facklitteratur som behandlar framväxten av dagens skola har använts liksom material från Internet, tidningsartiklar samt en intervju med en gymnasielärare i historia. Uppsatsen är beskrivande, deskriptiv, men eftersom en jämförelse mellan dagens gymnasieskola och GY-2007 görs med efterföljande utvärdering är den även komparativ och normativ.In this paper a description is made of the future senior high school, GY-2007, valid from July 1st 2007. It describes the reforms which led to the senior high school of today in order to give an understanding of its structure. The description of GY-2007 is based on the government bill 2003/04:140 Kunskap och kvalitet – elva steg för utvecklingen av gymnasieskolan. (Knowledge and quality – eleven steps for the development of the senior high school) The author wants to find out more about and describe GY-2007. Questions asked are whether there are any similarities or differences between the senior high school of today and the future senior high school GY-2007. What consequences can be expected? Only changes related to education of young people are dealt with. There are, with a few exceptions, no major news in the government bill. GY-2007 is a reorganization of earlier reforms. The suggested changes in the bill are a development of the present senior high school or partly a return to earlier structures. The material used is, in the first hand, official publications such as researches and government bills. Also material from the Internet, articles from newspapers and an interview with a teacher are used. The essay is descriptive but since a comparison between today’s senior high school and GY-2007 is made, and followed by an evaluation it is also comparative and normative
Ny gymnasieskola : En beskrivning av GY-2007
No full textSAMMANFATTNING Den här uppsatsen behandlar den nya gymnasieskolan, GY-2007, som ska tas i bruk från och med 1 juli 2007. De reformer som ledde fram till dagens gymnasieskola redovisas för att få en bild av hur den vuxit fram. GY-2007 beskrivs med utgångspunkt i den regeringsproposition 2003/04:140 Kunskap och kvalitet – elva steg för utvecklingen av gymnasieskolan, som ligger till grund för reformen. I uppsatsen jämförs den nuvarande gymnasieskolan med framtidens gymnasieskola, GY-2007, för att peka på de skillnader som finns och vad de kan tänkas innebära. Författarens syfte med uppsatsen är att ta reda på mer om och beskriva GY-2007. De frågor som ställs är finns det några likheter och skillnader mellan dagens gymnasieskola och GY- 2007 och vad kan de tänkas innebära? Det är endast förändringarna som rör ungdomsgymnasiet som behandlas. Det finns inga stora reformnyheter med GY-2007, ett par steg undantagna. GY-207 bygger på nuvarande gymnasieskolas reformer och de förändringar som gjorts är i vissa fall återgång till tidigare system eller utveckling av det nuvarande. Materialet som behandlats är till största del offentligt tryck som statens offentliga utredningar (SOU) och regeringspropositioner. En del facklitteratur som behandlar framväxten av dagens skola har använts liksom material från Internet, tidningsartiklar samt en intervju med en gymnasielärare i historia. Uppsatsen är beskrivande, deskriptiv, men eftersom en jämförelse mellan dagens gymnasieskola och GY-2007 görs med efterföljande utvärdering är den även komparativ och normativ.In this paper a description is made of the future senior high school, GY-2007, valid from July 1st 2007. It describes the reforms which led to the senior high school of today in order to give an understanding of its structure. The description of GY-2007 is based on the government bill 2003/04:140 Kunskap och kvalitet – elva steg för utvecklingen av gymnasieskolan. (Knowledge and quality – eleven steps for the development of the senior high school) The author wants to find out more about and describe GY-2007. Questions asked are whether there are any similarities or differences between the senior high school of today and the future senior high school GY-2007. What consequences can be expected? Only changes related to education of young people are dealt with. There are, with a few exceptions, no major news in the government bill. GY-2007 is a reorganization of earlier reforms. The suggested changes in the bill are a development of the present senior high school or partly a return to earlier structures. The material used is, in the first hand, official publications such as researches and government bills. Also material from the Internet, articles from newspapers and an interview with a teacher are used. The essay is descriptive but since a comparison between today’s senior high school and GY-2007 is made, and followed by an evaluation it is also comparative and normative
Fully superhydrophobic porous medium with super durability
No full textBackground: Superhydrophobicity being a widely-used characteristic in functional materials that has attracted much interests in academic and industrial applications, such as self-cleaning, anti-corrosion, anti-drag, and antiicing. Until now, the durability of superhydrophobicity is still a big challenge to limit its extensive applications. Method: Here, we develop a fully superhydrophobic strategy with super durability in a porous medium. The porous medium is achieved as a fully superhydrophobic bulk by treating with the 1 H,1 H,2 H,2 H-PerfluorodecyltriMethoxysilane (FAS-17) at 95 degrees C. Due to the capillary effect, the FAS-17 liquid readily flows to the whole of the porous medium to modify all surface for superhydrophobicity. Significant Findings: Evaluated via various treatments, including sanding 30 times, repeated exposure at -20 degrees C to 350 degrees C 100 times, and immersing in solutions of pH from 3 to 12, the superhydrophobic surface maintains a stabilized contact angle with a slight change. Additionally, this strategy would be a general method which is applicable to many porous media, including Co3O4, CeO2, Fe2O3, MnO2, CuO, and MgO. This work shows the great potential of the fully superhydrophobic porous medium to provide a simple way to design superhydrophobic materials with super durability and facilitates valid avenues for functional surface designing
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