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885 results on '"Li, Qiuyan"'

302. Localized High-Concentration Sulfone Electrolytes for High-Efficiency Lithium-Metal Batteries

Author

Ren, Xiaodi, primary, Chen, Shuru, additional, Lee, Hongkyung, additional, Mei, Donghai, additional, Engelhard, Mark H., additional, Burton, Sarah D., additional, Zhao, Wengao, additional, Zheng, Jianming, additional, Li, Qiuyan, additional, Ding, Michael S., additional, Schroeder, Marshall, additional, Alvarado, Judith, additional, Xu, Kang, additional, Meng, Y. Shirley, additional, Liu, Jun, additional, Zhang, Ji-Guang, additional, and Xu, Wu, additional

Published
2018
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321. Spatial confinement of Co-N-C catalyst in carbon nanocuboid for water Decontamination: High Performance, mechanism and biotoxicity assessment.

Author

Li, Qiuyan, Ruan, Jiayi, Zhang, Xinyu, Wang, Yanlan, Zhao, Haiyu, Huang, Yingping, Huang, Di, and Liu, Xiang

Subjects
*POLLUTANTS, *CATALYSTS, *WHEAT seeds, *GERMINATION, *CARBON, *MASS transfer
Abstract

[Display omitted] • Co-CNCs presented a nanocubes structures with abundant graphitic C/N. • Co-N-C catalyst was successfully confined into carbon nanocubes. • Spatial confinement facilitated its stability and catalyst activity in SMX removal. • •OH and SO 3 •- were the major reactive species in Co-CNC-850/CaSO 3 system. • Biotoxicity of SMX to wheat seed and zebrafish was greatly reduced after degradation. Encapsulating free radical species with super-short lifetime and organic pollutants inside the chemical theoretical diffusion length scale by spatial confinement could offer a strategy with great promise to resolve the mass transfer restrictions in heterogeneous Fenton-like systems. Herein, we reported the spatial confinement of Co, N co-doped carbon (Co-N-C) catalyst in carbon nanocuboids (Co-CNCs), via encapsulation of Co-N-C catalyst into CNCs, for activating CaSO 3 to efficiently degrade sulfamethoxazole. The detailed characterizations confirmed ZIF-9 was successfully transformed into N-doped carbon nanocuboids at 850 °C calcination. Co-N-C catalyst was successfully confined into carbon nanocuboids, is beneficial to prevent the aggregation of Co nanoparticles, thereby facilitating its stability and catalyst activity in sulfamethoxazole (SMX) removal via CaSO 3 activation. Compared with other sulfites (including Na 2 SO 3 and NaHSO 3), CaSO 3 (82%) presented much higher degradation efficiency than those of NaSO 3 (18%) and NaHSO 3 (41%) in SMX removal, emphasizing the critical role of CaSO 3 in water decontamination. Because CaSO 3 could discharge SO 3 2- persistently and slowly, preventing from the consumption of the formed SO 4 •- at a high concentration of aqueous SO 3 2-. Quenching test and mechanism study had verified that •OH and SO 4 •- (SO 3 •-) were the major reactive species in Co-CNC-850/CaSO 3 system. In addition, Zebrafish toxicology assays and seed germination experiments had revealed the biotoxicity of SMX to zebrafish and wheat seeds was significantly reduced after degradation via Co-CNC-850/CaSO 3 system. [ABSTRACT FROM AUTHOR]

Published
2024
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322. Development of a two-dimensional model to assess carbon dynamics and anthropogenic effects on CO2 emissions in the Tan river, southern China.

Author

Chen, Zhonghan, Li, Qiuyan, Yan, Shibo, Xu, Juan, Lin, Qiaoyun, Zhao, Zhuangming, and He, Ziying

Subjects
*CARBON emissions, *TWO-dimensional models, *GREENHOUSE effect, *CARBON cycle, *GLOBAL warming, *ANTHROPOGENIC effects on nature, *CLIMATE change
Abstract

Tidal rivers are key biochemical reaction channels along the land-ocean aquatic continuum, receiving carbon from wastewater and agricultural drains, which can considerably affect CO 2 emissions. We developed a two-dimensional hydrodynamic and ecological model coupled with an inorganic carbon module along the Tan River in southern China. The simulations of and observations regarding discharge, temperature, total organic carbon (TOC), total inorganic carbon (TIC), and other common water quality variables were generally in good agreement. Based on the validated model, we employed statistical and scenario analyses to evaluate the carbon distribution, TOC and TIC budgets, and the imbalances induced by climatic and anthropogenic changes, providing insights into their potential greenhouse effect. The Tan River was consistently supersaturated with CO 2 with an annual mean air-water CO 2 emission flux (FCO 2) of 226.1 ± 84.9 mmol m−2 d−1, and significant temporal and spatial variations of FCO 2 , TOC, and TIC were observed. Urban small streams tended to emit additional CO 2 during wet seasons, and rural tributaries usually had an increase in TOC concentrations during the dry season. FCO 2 was significantly positively correlated with air temperature and negatively correlated with total nitrogen, total phosphorus, and TOC. The annual riverine input of carbon to the urban river network was 17.37 Gg C yr−1, with 59.82% of TOC, and carbon output was 15.31 Gg C yr−1, with 66.87% of TOC. The retention rates for TOC and total carbon were 50.7% and 11.8% in the urban branch, respectively. Furthermore, warming and wastewater treatment could prevent urban river networks and downstream rivers from becoming carbon sources. Therefore, our findings suggest that riverine management strategies change the global CO 2 release from tidal rivers and estuarine systems under climate change. • The ecological model is efficient to quantitatively estimate carbon dynamics in a tidal river. • Organic carbon is gathered from rural tributaries and then rapid consumed into CO 2 along urban river networks. • Global warming and wastewater treatment decrease CO 2 emissions. • Water replenishment increases CO 2 emissions from downstream rivers. [ABSTRACT FROM AUTHOR]

Published
2024
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323. Applied Research in Communications Encryption Technology Based on the Integration of Digital Watermarking

Author

Zhang Lei, Li Qiuyan, Du Chunmei, Gao Wenju, and Meng Qinghua

Subjects
business.industry, Digital Watermarking Alliance, Computer science, Data_MISCELLANEOUS, ComputingMilieux_LEGALASPECTSOFCOMPUTING, General Medicine, Encryption, Computer security, computer.software_genre, Watermarking attack, Confidentiality, Applied research, business, Digital watermarking, computer
Abstract

This essay describes a new radio encryption technique among communication equipments, that is embed confidential information in normal carrier by using digital watermarking to achieve the purpose of protecting confidential information and confusing illegal interceptors. Meanwhile it also gives embed watermarking based on integration and Detection Algorithm.

Published
2012

324. Influencing Factor Analysis on Hospitalization Costs of 3046 Cases with Colorectal Cancer on Basic Medical Insurance in Beijing

Author

Xu Renzhong, Zheng Jie, Yi Danhui, Zhang Jiayao, Li Qiuyan, Jia Xiaoqiang, Yang Huaizhong, Wu Yu, Zhang Mengmeng, and Yang Yu-fei

Subjects
medicine.medical_specialty, Multivariate analysis, Colorectal cancer, business.industry, Traditional Chinese medicine, Hospital performance, medicine.disease, Medical insurance, Beijing, Emergency medicine, Hospitalization cost, medicine, business, Medical costs, health care economics and organizations
Abstract

The hospitalization cost of patients with colorectal cancer was studied to reveal influencing factors to explore traditional Chinese medicine (TCM) hospital performance characteristics, distribution law of factors affecting costs, and proposal of reducing medical costs. Retrospective analysis was conducted on the data of 3046 cases with colorectal cancer on basic medical insurance in Beijing in 2008. Factors of medical quality and costs were investigated by single and multivariate analysis. The relation of different factors and hospitalization cost was discussed. The results showed that major factors influencing hospitalization costs were hospitalization days, hospital category, main diag- nosis, hospital rank, operation or not, combination with cardiocerebral diseases, etc. It was concluded that hospitalization costs can be reduced by promoting applied rate of TCM, shortening hospitalization duration, promoting level of diagnosis and treatment, and service quality.

Published
2011

325. Animal models for the atherosclerosis research: a review

Author

Liu Yuanwu, Li Qiuyan, Li Xiangdong, Zhang Hua, Li Ning, and Ren Liming

Subjects
Review, Cell Biology, Biology, Atherosclerosis, Bioinformatics, Biochemistry, Human genetics, Genetically modified organism, Pathogenesis, Disease Models, Animal, Cholesterol feeding, Animal model, Drug Discovery, Animals, Humans, Biotechnology, Cause of death
Abstract

Atherosclerosis is a leading cause of death worldwide, and its mechanisms are still unclear. However, various animal models have significantly advanced our understanding of the mechanisms involved in atherosclerosis and have allowed the evaluation of therapeutic options. The aim of this paper is to review those animal models (i.e., rabbits, mice, rats, guinea pigs, hamsters, avian, carnivores, swine, and, non-human primates) that have been used to study atherosclerosis. Though there is no single perfect animal model that completely replicates the stages of human atherosclerosis, cholesterol feeding and mechanical endothelial injury are two common features shared by most models of atherosclerosis. Further, with the development of genetically modified animals, these models are significantly broadening our understanding of the pathogenesis of atherosclerosis.

Published
2011

335. Wide-Temperature Electrolytes for Lithium-Ion Batteries

Author

Li, Qiuyan, primary, Jiao, Shuhong, additional, Luo, Langli, additional, Ding, Michael S., additional, Zheng, Jianming, additional, Cartmell, Samuel S., additional, Wang, Chong-Min, additional, Xu, Kang, additional, Zhang, Ji-Guang, additional, and Xu, Wu, additional

Published
2017
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338. Developments in Benchtop Spectrometers: A High Access XANES User Facility and a Compact Spectrometer for Energy Storage Research

Author

Jahrman, Evan, primary, Seidler, Gerald T., additional, Ditter, Alex, additional, Holden, William, additional, Hoidn, Oliver, additional, Mortensen, Devon, additional, Valenza, Ryan, additional, Bradshaw, Liam, additional, Kozimor, Stosh, additional, Bowden, Mark E, additional, Zhang, Jason, additional, Gross, Mark, additional, Cartmell, Samuel, additional, Li, Qiuyan, additional, Murugesan, Vijayakumar, additional, Govind, Niri, additional, and Wang, Wei, additional

Published
2017
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341. Formation of Reversible Solid Electrolyte Interface on Graphite Surface from Concentrated Electrolytes

Author

Lu, Dongping, primary, Tao, Jinhui, additional, Yan, Pengfei, additional, Henderson, Wesley A., additional, Li, Qiuyan, additional, Shao, Yuyan, additional, Helm, Monte L., additional, Borodin, Oleg, additional, Graff, Gordon L., additional, Polzin, Bryant, additional, Wang, Chong-Min, additional, Engelhard, Mark, additional, Zhang, Ji-Guang, additional, De Yoreo, James J., additional, Liu, Jun, additional, and Xiao, Jie, additional

Published
2017
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348. A stress testing analysis on China's power market in the future under the new power reform policy

Author

Guo Yong, Yan Zheng, Kong Xiangrui, Song Yiqun, Li Peng, Wang Lili, Li Qiuyan, and Han Dong

Subjects
Power (social and political), IT risk management, Decision support system, Actuarial science, Public economics, business.industry, Economics, Financial risk management, China, Risk assessment, business, Stress testing (software), Risk management
Abstract

Focusing on the new power reform, behavioral models of market participants are established in this paper to describe China's power market in the future and risk factors are listed based on the models. For the risk assessment of market participants, "Stress testing" in financial field is applied to China's power market to present how the risk factors impact on the tested factors.

Published
2015

349. Multiple novel prostate cancer susceptibility signals identified by fine-mapping of known risk loci among Europeans

Author

Al Olama, Ali Amin, Dadaev, Tokhir, Hazelett, Dennis J., Li, Qiuyan, Leongamornlert, Daniel A., Saunders, Edward J., Stephens, Sarah, Cieza-Borrella, Clara, Whitmore, Ian, Benlloch Garcia, Sara, Giles, Graham G., Southey, Melissa C., FitzGerald, Liesel M., Gronberg, Henrik, Wiklund, Fredrik, Aly, Markus, Henderson, Brian E., Schumacher, Fredrick, Haiman, Christopher A., Schleutker, Johanna, Wahlfors, Tiina, Tammela, Teuvo L. J., Nordestgaard, Børge G., Key, Tim J., Travis, Ruth C., Neal, David E, Donovan, Jenny L., Hamdy, Freddie C., Pharoah, Paul, Pashayan, Nora, Khaw, Kay-Tee, Stanford, Janet L., Thibodeau, Stephen N., McDonnell, Shannon K., Schaid, Daniel J., Maier, Christiane, Vogel, Walther, Luedeke, Manuel, Herkommer, Kathleen, Kibel, Adam S., Cybulski, Cezary, Wokozorczyk, Dominika, Kluźniak, Wojciech, Cannon-Albright, Lisa, Brenner, Hermann, Butterbach, Katja, Arndt, Volker, Park, Jong Y., Sellers, Thomas A., Lim, Hui-Yi, Slavov, Chavdar, Kaneva, Radka, Mitev, Vanio, Batra, Jyotsna, Clements, Judith A., Spurdle, Amanda, Teixeira, Manuel R., Paulo, Paula, Maia, Sofia, Pandha, Hardev, Michael, Agnieszka, Kierzek, Andrzej M., Govindasami, Koveela, Guy, Michelle, Muir, Kenneth, Viñuela, Ana, Brown, Andrew A., Freedman, Mathew, Conti, David V., Easton, Douglas F., Coetzee, Gerhard A., Eeles, Rosalind A., and Kote-Jarai, Zsofia

Subjects
RC0254
Abstract

Genome-wide association studies (GWAS) have identified numerous common prostate cancer (PrCa) susceptibility loci. We have fine-mapped 64 GWAS regions known at the conclusion of the iCOGS study using large scale genotyping and imputation in 25,723 PrCa cases and 26,274 controls of European ancestry.We detected evidence for multiple independent signals at 16 regions, 12 of which contained additional newly identified significant associations. A single signal comprising a spectrum of correlated variation was observed at 39 regions; 35 of which are now described by a novel more significantly associated lead SNP, whilst the originally reported variant remained as the lead SNP only in 4 regions. We also confirmed 2 association signals in Europeans that had been previously reported only in East-Asian GWAS.Based on statistical evidence and LD structure we have curated and narrowed down the list of the most likely candidate causal variants for each region. Functional annotation using data from ENCODE filtered for PrCa cell lines and eQTL analysis demonstrated significant enrichment for overlap with bio-features within this set. By incorporating the novel risk variants identified here alongside the refined data for existing association signals, we estimate that these loci now explain approximately 38.9% of the familial relative risk of PrCa, an 8.9% improvement over the previously reported GWAS tag SNPs. This suggests that a significant fraction of the heritability of PrCa may have been hidden during the discovery phase of GWAS, in particular due to the presence of multiple independent signals within the same region.

Published
2015

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