Báo cáo hóa học: " Growth of carbon nanowalls at atmospheric pressure for one-step gas sensor fabrication" ppt

... found that oxygen-con-taining radicals also appear to be essential for the growth of CNWs in our growth attempts. Hung et al.attributed the formation of nucleation sites for the growth of CNWs ... carbon nanowalls at atmospheric pressure for one-step gas sensor fabricationKehan Yu1, Zheng Bo1, Ganhua Lu1, Shun Mao1, Shumao Cui1, Yanwu Zhu2, Xinqi Chen3, Rodney S Ruoff2,Junhong ... the growth process[22,26,32,33]. Nevertheless, to our knowledge, no CNW growth has been reported at atmospheric pressure. Here, we report on the synthesis of CNWs using dcPECVDatatmosphericpressurebytakingadvantageofthe...

báo cáo hóa học: "Development of an automated speech recognition interface for personal emergency response systems" ppt

... ASR matched thesubjects' responses to either yes or no.Attenuation pattern for frequencies of 1850 Hz originating in zone 9Figure 3Attenuation pattern for frequencies of 1850 Hz originating ... this information to apply the appropriate delay toeach microphone. For the prototype, the location of theuser was input manually, although it is anticipated thatthis will be done automatically ... grammar files (in JSGF format) andthe prompt files (in .wav file format) were also separatedfrom the code itself to allow for easy modifications. Themodular composition of the prototype enables...

báo cáo hóa học: " Validation of a proposed WOMAC short form for patients with hip osteoarthritis" ppt

... evaluated the ability of theWOMAC-SF to define a distinct hierarchy of itemsalong the measured variable by means of an itemseparation index [30]. A value of 2.0 or greater for thisstatistic ... postinterventionscores.% at floor = percentage of the study population at the lowest possible scalelevel; % at ceiling = percentage of the study population at the highestpossible scale level; SD = Standard deviation; ... asthat for the original Spanish WOMAC questionnaire(0.82 for pain domain and 0.93 for function domain)because of the reduction of the number of items, it wasslightly lower, indicating that...

Báo cáo hóa học: "Growth of vertically aligned ZnO nanorods using textured ZnO films" docx

... Preparation of well-aligned ZnO whiskers on glasssubstrate by atmospheric MOCVD. J Cryst Growth 2004, 263:119-124.13. Sun Y, Fuge GM, Ashfold MNR: Growth of aligned ZnO nanorod arrays bycatalyst-free ... homoge-neous nucleation of ZnO crystals in solution. Thishomogeneous nucleation consumes ZnO precursorsrapidly and causes early termination of growth on thesubstrate. Therefore, depletion of the precursor ... foundation toachieve a better controlled and large-scale synthesis of ZnO nanorods.ExperimentalThe fabrication procedure for the growth of the nanorodsconsists of two steps: (1) preparation of...

Báo cáo hóa học: "Synthesis of carbon nanotubes with and without catalyst particles" doc

... On the graphitization nature of oxides for the formation of carbon nanostructures. Chem Mater 2007, 19:4105.41. Haruta M: Size- and support-dependency in the catalysis of gold. CatalToday 1997, ... toserve as template for the formation of hemisphericalcaps at nucleation (as this reduces the high total surfaceenergy of the particle caused by its high curvature).Thereafter, the catalyst may ... the case of very small (<5 nm) non-metalliccatalyst particles, the increased relative fraction of low-coordinated atoms could lead to surface saturation fol-lowed by carbon precipitation [7]....

Báo cáo hóa học: " Growth of Inclined GaAs Nanowires by Molecular Beam Epitaxy: Theory and Experiment" docx

... a at u = 0, i.e., the growth of straight NWs is notinﬂuenced by the substrate rotation.The detailed analysis of Refs. [6, 15] shows that theexact solution for the stationary NW growth rate ... drop (seated at the NW top) by different kinetic pathways: the directX. ZhangKey Laboratory of Information Photonics and OpticalCommunications (Ministry of Education), Beijing University of Posts ... impingement rateon their sidewalls. We ﬁnd that the effective diffusionlength at 550°C amounts to 12 nm for the surface adatomsand is more than 5,000 nm for the sidewall adatoms.Supersaturations of...

Báo cáo hóa học: "Growth of Comb-like ZnO Nanostructures for Dye-sensitized Solar Cells Applications" doc

... and biosensors,surface acoustic wave guides, solar cells, photocatalysts,etc. [1–24]. Among various applications, the use of ZnOnanomaterials as photoelectrodes for the fabrication of dye-sensitized ... electricity conversion efficiency of 0.68%. To the best of our knowledge, the use of ZnO nanocombs for the fabri-cation of DSSCs is not reported yet in the literature.Experimental DetailsZnO ... the branches of the nanocombs areattached along one side of the ribbonlike stem. TheHRTEM image of one tooth of comblike structure circledin figure(a) demonstrated a well-defined lattice fringes...

báo cáo hóa học: " Validation of an abbreviated Treatment Satisfaction Questionnaire for Medication (TSQM-9) among patients on antihypertensive medications" doc

... measure of treatment satis-faction, the Treatment Satisfaction Questionnaire for Medication (TSQM), using a national panel study of chronicdisease. Health Qual Life Outcomes 2004, 2:12.20. Atkinson ... Balance Model of Treatment Satisfaction used by Atkinson et al. (2005) for the TSQM [20]. Briefly, based on the Decisional BalanceModel of Treatment Satisfaction, dimensions of treatmentexperience ... Although a number of disease-specific measures of patients' treatment satisfaction (TS) and treatment satis-faction with their medication (TS-M) have been reportedin the literature [8-18],...

báo cáo hóa học: " Reliability of a 1-week recall period for the Medical Outcomes Study Sleep Scale (MOS-SS) in patients with fibromyalgia" pptx

... least moderate in 88.1% of patients,and 88.3% reported a duration of FM of at least 2 yearssince diagnosis. Approximately two-thirds of the patients(68.3%) reported taking medications for their ... that patients were compensated for participationis another limitation which may have introduced bias,since it is not known what effect the compensation mayhave had on the selection of patients ... correlation wereobtained for ICC and Pearson coefficients; ICC is consid-ered a more conservative estimate of association thanPearson.A limitation of this study is that these reliability estimateswere...

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