8,246 research outputs found
Ru xue yan jiu lun cong
No full textZuo zhe hao ju "Ru xue yan jiu lun cong" qu zi zhu bian ye chun fang.1. Ri ju shi qi tai wan ru xue yan jiu zhuan hao / Ye Chunfang= 日據時期臺灣儒學研究專號 / 葉純芳2. Di er ji /Zhang Xiaosheng zhu bian= 第二輯/張曉生主編3. Di san ji / Zhang Xiaosheng zhu bian= 第三輯/張曉生主編4. Di si ji / Zhang Xiaosheng zhu bian= 第四輯/張曉生主編5. Di wu ji / Wu Zhaojia zhu bian= 第五輯 /吳肇嘉主編6. Di liu ji / Wu Zhaojia zhu bian= 第六輯 /吳肇嘉主編7. Di qi ji /Chen Siqi zhu bian = 第六輯/陳思齊主編Taiwan resource centre for Chinese studie
MWH: multiple wing hairs: genetic order with ru and ve
No full textSu-ve ru ye h/mwh females
crossed to su-ve ru ye h males at 25’yielded 112 ru ye, 87 h, 6 ru, 4 ye h and 1 ye crossovers
among the prgeny. Because of the incomplete suppression of the ye phenotype by su-ve
the presumptive ye cross-overs were additionally progeny tested for confirmation. These
results place ru to the left of ye and approximately 1 uni apart (11/199 of 26.5 which is
the location of h). Bckcrosses to mwh established all ru ye chromosomes as now containing
mwh; none of the ru ye chromosomes contained mwh. Thus, mwh is located to the left of ye
and left of, or perhaps close to the right of, ru.
The analysis of E. B. Lewis in this issue, using a series of Y;3L translocations,
shows further that mwh is located between 61 E and 62 B 1,2 on the salivary chromosome map.Peer reviewe
Magnetic structures in Ni80Fe20/Ru multilayers
No full textUsing polarized neutron reflectivity (PNR) measurements together with associated simulation, magnetic structures of two Ni80Fe20 (1?1?1)/Ru (0?0?0?1) multilayer samples with Ru thickness of 9 and 21?? were investigated under various external magnetic fields at room temperature. The results reveal the existence of layer thickness, interface roughness, magnetic moment, interlayer coupling angle and non-collinear coupling. The former three are independent of Ru thickness; while the latter two are strongly dependent of Ru thickness.NRC publication: Ye
Structural effect of PtRu-WO3 alloy nanostructures on methanol electrooxidation
No full textPtRu-WO3 alloy thin-film nanostructures for use as direct methanol fuel cells have been fabricated by co-sputtering for 20 and 40 at.% Ru. The structural and electrochemical properties of these nanostructures were characterized using transmission electron microscopy, X-ray diffraction, and electrochemical measurements. The nanostructures consist of PtRu alloy nanoparticles (4 nm in size) dispersed in the WO3 matrix. For 20 at.% Ru, the alloy nanoparticles are face-centered cubic (fcc), but for 40 at.% Ru, the nanoparticles separate into Pt-rich fcc and Ru-rich hexagonal-close packed (hcp) phases. (c) 2005 Elsevier B.V. All rights reserved.N
Rubiparvus bistigma, a new genus and species of Empoascini (Hemiptera, Cicadellidae, Typhlocybinae), with a checklist of the Alebroides group in Chinese fauna
No full textXu, Ye, Wang, Yu-Ru, Lu, Si-Han, Dietrich, Christopher H., Qin, Dao-Zheng (2016): Rubiparvus bistigma, a new genus and species of Empoascini (Hemiptera, Cicadellidae, Typhlocybinae), with a checklist of the Alebroides group in Chinese fauna. Zootaxa 4109 (5): 583-589, DOI: 10.11646/zootaxa.4109.5.
Investigation of Rhodium intercalated Graphene on Ru(0001)
No full textIntercalation is a technique to tune the electronic and structural propertiesin the host two-dimensional layered materials by inserting foreign atoms ormolecules in-between layers [1,2]. Using this technique, graphene, which pos-sesses a small bandgap that limits its application, can tune up its properties toenable spintronics application. A report about graphene on Ru(0001) [3] hasalready existed that ensures the possible exploration of Rh via thermal interca-lation, which is not reported yet. Here, we successfully fabricated high-qualitygraphene on Ru(0001)-substrate, which was verified by the observed Moir \ucce pat-tern using low energy electron diffraction (LEED) and scanning tunneling mi-croscopy (STM). The Moir \ucce pattern has a lattice constant of 3.0 nm, which isconsistent with the literature. Subsequently, to optimize the intercalation temper-ature, thermal annealing was performed on Rh/graphene/Ru(0001) with varioustemperatures. By comparing the results to the pristine graphene, we observed aslight decrease in the intensity of the LEED spots, nanoislands showing up on thesurface, and changes in the dI/dV electronic properties for the Rh-intercalatedgraphene on Ru(0001).
Keywords:Graphene, Rhodium, Ru(0001), Intercalation, Scanning tunneling microscopy
Influence of shaft torsional stiffness on natural characteristics of four-stage main transmission system in three-engine helicopter
No full textFour-stage main helicopter transmission system occupies several strong points like good carrying capacity and is addressed by many scholars. However, the influence of variable parameters on natural characteristics in a three-engine helicopter, is not to be investigated, according to the limited published issues. Thus, in the study, a vibration model of the four-stage main helicopter transmission system is established through the lumped mass method. In the model, many factors, including time-varying meshing stiffness and torsional stiffness of gear shaft are considered. The differential equation of the system is solved via the Fourier method, 27-orders natural frequency and modal shape corresponded by each degree of freedom (DOF) of the system are obtained. The influence of the shaft torsional stiffness on the first five orders of the system natural frequency is studied. Besides, the impact of the matching relationship of key shafts’ torsional stiffness on the system stability is analyzed. These contributions would improve modification developments of four-stage deceleration helicopter in future.</p
[[alternative]]Lian...dou/ye Construction
No full text[[abstract]]The thesis deals with the ‘lian…dou/ye …’ construction in modern Chinese. In order to clarify the informational status of ‘lian…’, issues on topic and focus are shown in the first part of this thesis. Then, discussions on semantic functions and conversational implicatures of this construction constitute the sencond part. Lastly, the formal complexity and pedagogical instructions will be presented as well.
Design of nanostructured electrocatalysts for direct methanol fuel cells
No full textDue to their excellent catalytic activity with respect to methanol oxidation on platinum at low temperature, platinum nanosized catalysts have been a topic of great interest for use in direct methanol fuel cells (DMFCs). Because pure platinum is readily poisoned by CO, a by-product of methanol electrooxidation, and is extremely expensive, a number of efforts to design and characterize Pt-based alloy nanosized catalysts or Pt nanophase-support composites have been attempted in order to reduce or relieve the CO poisoning effect. In this review paper, we summarize these efforts based upon Our recent research results. The Pt-based nanocatalysts were prepared through chemical synthesis and thin-film technology, and were characterized using a variety of analyses. According to bifunctional mechanism, it was concluded that good alloy fori-nation with a second metal (e.g., Ru), as well as the metallic state and the optimum portion of Ru in the anode catalyst, contribute to the enhanced catalytic activity for methanol electrooxidation. In addition, we found that the modified electronic properties of platinum in Pt alloy electrodes, as well as the surface and bulk structures of Pt alloys in suitable compositions, could be attributed to the higher catalytic activity for methanol electrooxdation. The proton conducting contribution of nanosized electrocatalysts should also be considered to be excellent in methanol electrooxidation (spillover effect). Finally, we confirmed the ensemble effect, which combined all of the effects listed above, in Pt-based nanocatalysts; PtRuRhNi and PtRuWO3, especially, contribute to an enhanced catalytic activity.N
Structure and electrocatalysis of sputtered RuPt thin-film electrodes
No full textThe structural and electrochemical properties of RuPt thin-film electrodes fabricated by radio frequency (rf) magnetron sputtering have been investigated. Grazing incidence X-ray diffraction data show a transition from a face-centered cubic (fee) to hexagonal cubic-packed (hcp) structure as the Ru percentage increases. The transition occurs gradually between 32 and 58% Ru, which is significantly different from the bulk RuPt phase diagram. The catalytic activity of the thin-film electrodes for methanol oxidation shows a broad peak near 40-60% Ru, consistent with previous reports. The relationship between catalytic activity and film structure is discussed and contrasted with previous investigations.Y
- …
