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Porous Metals of Northwest Institute for Non-ferrous Metal Research
Huiping Tang,Jichang Liao,Jilei Zhu 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
In recent years, the research in porous metal got rapid development in China, especial in Northwest Institute for Non-ferrous Metal Research (NIN). Many porous metals with different raw material and different shapes were developed, which successfully employed in many fields. We believe we will earn more rapid development in the future.
Tang, Zhenjie,Zhao, Dongqiu,Hu, Huiping,Li, Rong,Yin, Jiang The Korean Institute of Electrical and Electronic 2014 Transactions on Electrical and Electronic Material Vol.15 No.2
$Pt/Al_2O_3/La_2Si_5O_x/SiO_2/Si$ charge trap memory capacitors were prepared, in which the $La_2Si_5O_x$ film was used as the charge trapping layer, and the effects of post annealing atmospheres ($NH_3$ and $N_2$) on their memory characteristics were investigated. $La_2O_3$ nanocrystallites, as the storage nodes, precipitated from the amorphous $La_2Si_5O_x$ film during rapid thermal annealing. The $NH_3$ annealed memory capacitor showed higher charge storage performances than either the capacitor without annealing or the capacitor annealed in $N_2$. The memory characteristics were enhanced because more nitrogen was incorporated at the $La_2Si_5O_x/SiO_2$ interface and interfacial reaction was suppressed after the $NH_3$ annealing treatment.
Effect of Annealing Atmosphere on the La2O3 Nanocrystallite Based Charge Trap Memory
Zhenjie Tang,Dongqiu Zhao,Huiping Hu,Rong Li,Jiang Yin 한국전기전자재료학회 2014 Transactions on Electrical and Electronic Material Vol.15 No.2
Pt/Al2O3/La2Si5Ox/SiO2/Si charge trap memory capacitors were prepared, in which the La2Si5Ox film was used as thecharge trapping layer, and the effects of post annealing atmospheres (NH3 and N2) on their memory characteristicswere investigated. La2O3 nanocrystallites, as the storage nodes, precipitated from the amorphous La2Si5Ox film duringrapid thermal annealing. The NH3 annealed memory capacitor showed higher charge storage performances thaneither the capacitor without annealing or the capacitor annealed in N2. The memory characteristics were enhancedbecause more nitrogen was incorporated at the La2Si5Ox/SiO2 interface and interfacial reaction was suppressed afterthe NH3 annealing treatment.
Low-cycle Fatigue Performances of P/M Ti-Fe-Mo-Al-Nd Alloy
Haiyan Liu,Huiping Tang,Cheng Li,Yuanping Huang,Boyun Huang,Yong Liu 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The low-cycle fatigue performance and fracture of the P/M Ti-Fe-Mo-Al-Nd Alloys after sintering and forging have been studied. The linear regression equation of low-cycle fatigue lifetime has been obtained; the fatigue performances are objected under two different conditions. The fatigue fracture surface is analyzed by SEM. The low-cycle fatigue behavior of the P/M titanium alloy has been discussed.
Preparation of Titanium Microfiltration Membrane by Field-flow Fractionation Deposition
Wang QiangBing,Tang HuiPing,Zhang QianCheng,Qiu QunFeng,Wang JianYong 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
The primary aim pursued by the preparation of separation membrane is the preparation of the membrane thin as well as with no defect. The field-flow fractionation deposition is a new molding technology which can overcome the traditional disadvantages such as multi-preparation to the preparation of great area of separation membrane with no defect. Therefor the mainly ingredients which influence the appearance and performance of titanium membrane layer are investigated by scanning electricity mirror (SEM) as well as porous material testing instrument: powder performance prepared and confected; selection of supporting body; sintering system such as temperature and time. It is shown that the membrane thickness can be controlled at or so; the filtration precision mainly rests with powder performance and selection of supporting body and little sintering system
The Role of Wheat Germ Agglutinin in the Attachment of Pseudomonas sp. WS32 to Wheat Root
Jian Zhang,Liyuan Meng,Yuanyuan Cao,Huiping Chang,Zhongyou Ma,Leni Sun,Ming Zhang,Xinyun Tang 한국미생물학회 2014 The journal of microbiology Vol.52 No.12
Wheat germ agglutinin (WGA), which is secreted on thesurface of wheat root, has been defined as a protein that reversiblyand non-enzymatically binds to specific carbohydrates. However, little attention has been paid to the functionof WGA in the attachment of bacteria to their host plants. The aim of this study was to investigate the role of WGA inthe attachment of Pseudomonas sp. WS32 to wheat roots. Wheat roots were initially treated with double-distilled water,WGA-H (WGA solution that was heated at 100°C for 15 min)and WGA, independently. Subsequently, the roots were coincubatedwith cell solutions (109 cells/ml). A dilution platemethod using a solid nutrient medium was employed to determinethe adsorption of WS32 to wheat roots. WGA waslabeled with fluorescein isothiocyanate and detected usingthe fluorescent in situ hybridization (FISH) technique. Thenumber of adsorptive WS32 cells on wheat roots was significantlyincreased when the wheat roots were pretreatedwith WGA, compared with the control treatment (p = 0.01). However, WGA-H failed to increase the amount of bacterialcells that attached to the wheat roots because of the lossof its physiological activity. The FISH assay also revealedthat more cells adhered to WGA-treated wheat roots than tocontrol or WGA-H-treated roots. The results indicated thatWGA can mediate Pseudomonas strain WS32’s adherenceto wheat seedling roots. The findings of this study provide abetter understanding of the processes involved in plant-microbe interactions.