582 research outputs found
Qin Liangyu: [si mu li shi ju].
No full text楊村彬著.本電子書乃根據《香港版權條例(第528章)》而複製, 並只可在大學圖書館系統內的獨立電子書系統上使用.Yang Cunbin zhu.Ben dian zi shu nai gen ju "Xianggang ban quan tiao li (Di 528 zhang)" er fu zhi, bing zhi ke zai da xue tu shu guan xi tong nei de du li dian zi shu xi tong shang shi yong
sj-zip-1-imr-10.1177_03000605231168017 - Supplemental material for Effect of CADM1 on TPF-induced chemotherapy in laryngeal squamous cell carcinoma
No full textSupplemental material, sj-zip-1-imr-10.1177_03000605231168017 for Effect of CADM1 on TPF-induced chemotherapy in laryngeal squamous cell carcinoma by Jiani Nie, Lianhe Li, Fuxian Tan, Hongmei Wang, Hongmin Wang, Liangyu Zou and Zhenlei Wen in Journal of International Medical Research</p
Study of fluid resonance between two side-by-side floating barges
No full textThe hydrodynamic interaction between two vessels in a side-by-side configuration attracted research attentions in recent years. However, because the conventional potential flow theory does not consider the fluid viscosity, in the hydrodynamic results, the wave elevations were overestimated in the narrow gap under resonance conditions. To overcome this limitation and investigate the complex fluid flow around multiple bodies in detail, this study examines the fluid resonance between two identical floating barges using a viscous flow analysis program FLOW-3D. The volume of fluid method is implemented for tracking the free surface, and a porous media model is used near the outflow boundary to enhance the wave absorption. A three-dimensional numerical wave basin is established and validated by comparison with the waves generated using theoretical values. On this basis, a computational fluid dynamics (CFD) simulation of the two barges in a resonance wave period is performed, and the wave elevations, the fluid flow around the barges, and the motions of the barges are discussed. The numerical simulation is verified by comparison with results of corresponding experimental data. Key words: side-by-side bodies, FLOW-3D, wave elevation, streamline, fluid resonanc
A new type of cyclic silicone additive for improving the energy density and power density of Li–O<sub>2</sub> batteries
No full textIn this work, a novel electrolyte additive, octamethylcyclotetrasiloxane (OMTS), is applied to Li–O2 batteries to increase their practical discharge capacity and also their rate capability.</p
Ultrasonic spectroscopy for in situ early detection and dynamic monitoring of lithium plating in lithium-ion batteries
No full textLithium (Li) plating can significantly degrade lithium-ion battery (LIB) performance, posing safety risks. Detecting and monitoring Li plating, especially in its onset stage, is challenging due to its complex and unpredictable nature. This study introduces an ultrasonic spectroscopy method for in situ early detection of mild Li plating and monitoring its development within commercial LIBs. A wave model predicts the ultrasonic spectrum from a multi-layer and saturated porous battery structure. Controlled experiments are conducted at both room and low temperatures. At room temperature, the ultrasonic amplitude generally increases during battery charging. However, at low temperature, the transmission amplitude at the resonance frequency shows a clear decrease during the same charging process. The opposite trend of amplitude change enables highly sensitive and reliable detection of early-stage Li plating with minimal interference from factors such as state-of-charge (SOC) variations. The method is further evaluated by tracking Li plating growth during real-world fast-charging scenarios.</p
Theoretical studies on the structure and properties of DAT/BTNAT cocrystal under high pressures
Get PDFThe structural, electronic, and absorption properties of 3,5-diamino-1H-1,2,4-triazole (DAT) and 5,5â -bis (trinitromethyl) -3,3â -azo-1H-1,2,4-triazole (BTNAT) cocrystal under hydrostatic compression of 0-100 GPa were investigated by using periodic density functional theory with dispersion correction (DFT-D). The results indicate that there is structural transformation occurred at 25 GPa. The structural transformation makes the positions of the molecules rearrange in the cocrystal and improves the stability and planarity. An analysis of the band gap and density of states indicates that the DAT/BTNAT cocrystal becomes more sensitive under compression. The absorption spectra illustrates that the DAT/BTNAT cocrystal has relatively high optical activity with the increasing pressure. Our work may offer some valuable information for understanding the behavior of energetic cocrystals under high pressures.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
Carbon nanotubes altering specificity of repeated PCR and DNA integrity properties
No full textWe have investigated the impact of aqueous suspension of single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) on performance of repeated PCR, and discussed their thermal impact on DNA characteristics. Both SWCNTs and MWCNTs are found significantly enhancing the specificity of the repeated PCR and capable of inhibition of long DNA thermal degradation. SWCNTs performed a better specificity in repeated PCR than MWCNTs did. MWCNT-DNA binding was more favorable for protecting long DNA from thermal degradation than SWCNT-DNA binding. The results suggested that CNTs are very useful in repeated PCR working on limited amount of DNA resources.Xiongwei Du, Hongjie An, Bo Jin, Liangyu Meng, Qingdai Li
Template enhanced activity of lipase accommodated in siliceous mesocellular foams
No full textLipases were adsorbed in siliceous mesocellular foams containing different amounts of residual template in the nanopores. It is found that the hydrolytic activities of the adsorbed lipases are increased with increasing the contents of template in the mesopores. The triacetin hydrolytic activity of the lipase adsorbed in the foam containing 46% of template can be 13 times higher than that of the lipase adsorbed in the foam without template in the nanopores, and its specific activity is about three times higher than that of the free lipase, showing the hyperactivation effect on lipase resulting from the interaction between the lipase and the surfactant in the nanopores. The immobilized lipase cross-linked with glutaraldehyde can retain up to 88% of its original activity after six hydrolysis reaction test. This work provides a new strategy to enhance the activity of immobilized lipase in mesoporous materials. (c) 2008 Elsevier Inc. All rights reserved
Research on the Coordination Relationship Between Supply and Demand of Tourism Resources Based on Evolutionary Analysis
No full textDong dang shi dai de zhi shi fen zi /
No full text"Ben shu yuan 1990 nian chu ban yu Zhejiang ren min chu ban she..."--Colophon.Includes bibliographical references
- …
