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the control performance. To overcome this shortage, a sliding mode disturbance observer (SMDO) is proposed to estimate the disturbance mainly including the fuel sloshing dynamics, and an SMDO-drived high...J. Cent. South Univ. (2017) 24: 589-598 DOI: 10.1007/s11771-017-3460-6 ESO-based robust predictive control of lunar module with fuel sloshing dynamics SONG Zheng-yu(宋征宇)1, 2, YAN Gang-feng(颜钢锋)1......
(XRD) patterns show that the c-axis orientation of ZnO film increases evidently after oxygen plasma pretreatment. The AFM and SEM measurements also show that the high c-axis orientation of ZnO film... the properties of ZnO films, especially the crystallinity and electrical properties.References [1] ELMAZRIA O, MORTET V, HAKIKI M E, NESLADEK M, ALNOT P. High velocity saw using aluminum nitride film......
]// 第五届全国表面工程学术会议论文集. 西安: 中国机械工程学会表面工程分会, 2004: 169-171. WANG Yin-zhen, SUN Yong-xing, CAO Wen-jun. Effect of high velocity oxygen fuel parameters on porosity and erosion resistance of coatings[C...: The NiCrAlY coatings with oxygen-fuel ratio of 3.91, 4.31, 4.62 and 5.39, respectively, were prepared by high-velocity oxygen fuel spraying (HVOF). The changes of microstructure and mechanical......
]. Noble metals and their alloys, such as Pt and Pt alloys, have been extensively studied as efficient electrocatalysts for oxygen reduction reaction (ORR) [3, 4]. However, their relatively high cost...) and adsorption oxygen (Oads). According to Table 3, the proportion of Oads/Olatt of layered LSCF (3.21) is higher than that of bulk-LSCF (2.39). We ascribed the high ratio of Oads/Olatt in layered LSCF to its high......
; oxygen reduction reaction; fuel cell 1 Introduction Cathode oxygen reduction reaction (ORR) is a critical reaction for metal-air batteries and fuel cells that are considered as the promising electrical... material carrier, which leads to the exposure of more active sites and provides an open channel for oxygen. Thirdly, the NHPCS interacting with MxNy NPs is beneficial to electron transfer due to its high......
for controlling gas flow in the HVOF process[J]. Journal of Thermal Spray Technology, 2005, 14(1): 91?99. [5] He J, Ice M, Lavernia E. Particle melting behavior during high-velocity oxygen fuel thermal...) Abstract: The Nickel-based coating was prepared on copper substrate by high velocity air-fuel (HVAF) thermal spraying and low pressure plasma spraying (LPPS). The wear properties and wear......
brought by EGR and decreased oxygen concentration in the cylinder. Key words: dual fuel engine; exhaust gas recirculation (EGR); emission; performance; venturi EGR system 1 Introduction The concept... with natural gas fuel can yield a high thermal efficiency almost comparable to the same engine operating on diesel fuel at higher loads. However, engine performance and emissions suffer at low loads when......
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oxidation; oxygen reduction1 Introduction There has been an increasing interest in the development of proton exchange membrane fuel cells (PEMFC) and the direct methanol fuel cell(DMFC) in the recent... catalyst electrode is as low as 10-10 A/cm2. Obtaining a cathodic catalyst with a high electrocatalytic activity for oxygen reduction is important for the development of both PEMFCs and DMFCs[5-6......
to create useful current. H+ ions combine with oxygen to produce water and heat energy as by-products in this case. The PEMFC can operate on air. The performance of fuel cell can be improved...; Estimation of equivalent internal-resistance of PEM fuel cell using artificial neural networks LI Wei(李 炜), ZHU Xin-jian(朱新坚), MO Zhi-jun(莫志军) (Department of Automation, Fuel Cell Research......
