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On a variational problem with lack of compactness: the topological effect of the critical points at infinity
RésuméNous étudions les problèmes sous-critiquesPɛ:−Δu=up−ɛ,u > 0 surΩ;u=0 sur ∂Ω−oùΩ est un domaine borné et régulier de ℝN,N−3,p + 1=2N/N −2 est l'exposant critique de Sobolev, et ɛ>0 tend vers… Expand
Local gradient estimates of solutions to some conformally invariant fully nonlinear equations
- Yanyan Li
- Mathematics
- 20 May 2006
This paper concerns local gradient estimates to solutions of general conformally invariant fully nonlinear elliptic equations of second order.
Derivative estimates of solutions of elliptic systems in narrow regions
- H. Li, Yanyan Li, Ellen Shiting Bao, Biao Yin
- Physics, Mathematics
- 6 November 2013
In this paper we establish local derivative estimates for solutions to a class of elliptic systems arising from studies of fiber-reinforced composite materials. From the structure of the composite,… Expand
Surveillance and Correlation of Antibiotic Consumption and Resistance of Acinetobacter baumannii complex in a Tertiary Care Hospital in Northeast China, 2003–2011
- Jiancheng Xu, Z. Sun, Yanyan Li, Q. Zhou
- Medicine
- International journal of environmental research…
- 1 April 2013
This study investigated the changes in resistance of Acinetobacter baumannii complex and the association of carbapenem-resistant A. baumannii complex (CRAB) infection and hospital antimicrobial usage… Expand
The Preparation, Characterization and Formation Mechanism of a Calcium Phosphate Conversion Coating on Magnesium Alloy AZ91D
The poor corrosion resistance of magnesium alloys is one of the main obstacles preventing their widespread usage. Due to the advantages of lower cost and simplicity in operation, chemical conversion… Expand
In vitro activity of novel oxazolidinone analogs and 13 conventional antimicrobial agents against clinical isolates of Staphylococcus aureus in Beijing, China.
Methicillin-resistant Staphylococcus aureus (MRSA) has been a public health concern since it was first identified in the United Kingdom in 1961. In this study, we investigated the prevalence of MRSA… Expand
Photocatalytic Water Splitting for Hydrogen Production with Gd2MSbO7 (M = Fe, In, Y) Photocatalysts under Visible Light Irradiation
- Jingfei Luan, Yanyan Li
- Materials Science, Medicine
- Materials
- 24 December 2014
Novel photocatalysts Gd2FeSbO7, Gd2InSbO7 and Gd2YSbO7 were synthesized by the solid state reaction method for the first time. A comparative study about the structural and photocatalytic properties… Expand
The Structural, Photocatalytic Property Characterization and Enhanced Photocatalytic Activities of Novel Photocatalysts Bi2GaSbO7 and Bi2InSbO7 during Visible Light Irradiation
- Jingfei Luan, Y. Shen, Yanyan Li, Y. Paz
- Materials Science, Medicine
- Materials
- 27 September 2016
In order to develop original and efficient visible light response photocatalysts for degrading organic pollutants in wastewater, new photocatalysts Bi2GaSbO7 and Bi2InSbO7 were firstly synthesized by… Expand
The joint effects of room temperature ionic liquids and ordered media on fluorescence characteristics of estrogens in water and methanol.
- H. Wang, Ailian Duan, +5 authors X. Wang
- Chemistry, Medicine
- Spectrochimica acta. Part A, Molecular and…
- 15 July 2014
This study investigated the steady-state and time-resolved fluorescence properties of 17α-ethinylestradiol (EE2) and 17β-estradiol (E2) in the presence of ordered media (β-cyclodextrins (β-CD) and… Expand
A Case Study of a Disaster Relief Organization after the Great Tohoku Earthquake: How to Incorporate Voluntarily Activities into Everyday Life?
- Yanyan Li
- Geography
- 2015
1 .震災ボランティアによる市民活動領域のエンパワーメント効果 ( 1)阪神・淡路大震災がもたらす市民活動領域の大転換 1995年の阪神・淡路大震災の発生時には、のべおよそ138万人の超えるボラ ンティアが地震発生後から現地で救援・支援活動を行った。それまではとかく 社会福祉分野の副次的話題として扱われていたボランティア活動はマスメディ… Expand