Important Factors on Sidewalks with Vendor Activities Based on Pedestrian Perception by Gender and Age

This paper presents an investigation of important factors relating sidewalk performance based on pedestrian perceptions by gender and age. Exploratory factor analysis technique and reliability test of the variables are performed on 45 items of sidewalk current condition in order to extract dimensions of pedestrian perceptions in Jakarta and Bangkok. Based on age, male respondents reveals that eight factors are identified as important on sidewalk performance, and labeled on the basis of the attributed covered as sidewalk interaction, comfort, space availability, safety, vendor problems, walking path, vendor regulation, and vendor's attraction. On the other hand, the first seven factors are similarly stated by female respondents. Grouped by age, young respondents reveal nine factors are considered important and arbitrarily named as comfort, sidewalk interaction, safety, vendor's attraction, vendor problems, vendor regulation, walking path, space availability, and sidewalk condition. The presence of vendors are often deemed as obstruction for walking flow, but their activities should be accommodated by establishing policies and management to accept high performance of the sidewalks and to support the city's economy

Gas pressure sintering of Beta-Sialon with Z=3

An experiment conducted on beta-sialon in atmospheric pressure, using a temperature of 2000 C and 4 MPa nitrogen atmosphere, is described. Thermal decomposition was inhibited by the increase of the nitrogen gas pressure

Epitaxial ferromagnetic Fe3_{3}Si/Si(111) structures with high-quality hetero-interfaces

To develop silicon-based spintronic devices, we have explored high-quality ferromagnetic Fe$_{3}$Si/silicon (Si) structures. Using low-temperature molecular beam epitaxy at 130 $^circ$C, we realize epitaxial growth of ferromagnetic Fe$_{3}$Si layers on Si (111) with keeping an abrupt interface, and the grown Fe$_{3}$Si layer has the ordered $DO_{3}$ phase. Measurements of magnetic and electrical properties for the Fe$_{3}$Si/Si(111) yield a magnetic moment of ~ 3.16 $mu_{B}$/f.u. at room temperature and a rectifying Schottky-diode behavior with the ideality factor of ~ 1.08, respectively.Comment: 3 pages, 3 figure

The role of frictional work in tribological behavior of polyamide 66 composites containing rice bran ceramics particles or glass beads

In this study, we investigated tribological behavior of polyamide 66 (PA66) composites containing rice bran ceramics (RBC) particles or glass beads (GBs) under a wide range of contact pressures and sliding velocities, and discussed the role of the frictional work in the behavior. The volume fractions of the fillers were 8 and 26 vol%. The friction coefficients of pure PA66 showed the increasing tendency with the Pv values. In contrast, those of the PA66/RBC composites showed approximately no change, and those of the PA66/GB composites slightly decreased with increasing Pv value. The surface temperatures of the materials increased with increasing frictional work. The maximum temperature of pure PA66 and the PA66 composite with 26 vol% RBC particles exceeded 80 °C, which were higher than the glass transition temperature of PA66 resin. Pure PA66 exhibited a decrease in specific wear rate with increasing frictional work even as a change of the wear mode. This change was considered to be caused by softening of the resin because of high frictional work. In contrast, the specific wear rates of the PA66 composites with the RBC particles or GBs were much lower (<0.5× 10−8 mm2/N) compared with pure PA66 at low frictional work (<1.3 MJ/(m2∙s)). At high frictional work (>1.4 MJ/(m2∙s)), the PA66 composites with the RBC particles showed relatively high specific wear rates (0.6–1.0 × 10−8 mm2/N) because of high surface temperature

MgO barrier-perpendicular magnetic tunnel junctions with CoFe/Pd multilayers and ferromagnetic insertion layers

The authors studied an effect of ferromagnetic (Co20Fe60B20 or Fe) layer insertion on tunnel magnetoresistance (TMR) properties of MgO-barrier magnetic tunnel junctions (MTJs) with CoFe/Pd multilayer electrodes. TMR ratio in MTJs with CoFeB/MgO/Fe stack reached 67% at an-nealing temperature (Ta) of 200 degree C and then decreased rapidly at Ta over 250 degree C. The degradation of the TMR ratio may be related to crystallization of CoFe(B) into fcc(111) or bcc(011) texture result-ing from diffusion of B into Pd layers. MTJs which were in-situ annealed at 350oC just after depo-siting bottom CoFe/Pd multilayer showed TMR ratio of 78% by post annealing at Ta =200 degree C.Comment: 12 pages, 4 figure

Nuclear Localization of the Protein from the Open Reading Frame x1 of the Borna Disease Virus Was through Interactions with the Viral Nucleoprotein

AbstractPrevious studies have predicted the presence of a small open reading frame (ORFx1) located between ORF-1 and ORF-2 of the Borna disease viral (BDV) genome. The ORFx1 is expressed as a p10 protein that is localized in the nucleus and cytoplasm of BDV-infected cells. In this study, we cloned the nucleotide sequence of ORFx1 into expression vectors and showed that it is expressed as p10. An anti-p10 serum gave nuclear and cytoplasmic staining of cells persistently infected with BDV. Immunoprecipitation of p10 from BDV-infected cells coprecipitated the p40 nucleoprotein N and the 24-kDa viral phosphoprotein P. Transient transfection of noninfected cells showed that p10 and p40 can be coprecipitated and revealed that p10 localized in the cytoplasm was imported into the nucleus in the presence of the BDV p40 N.In vitroprotein–protein interaction studies on solid phase showed the direct interaction of the p10 with the BDV N protein. The subcellular distribution of p10 and its interaction with p40 suggest that this protein may play a role in the nuclear replication and/or transcription of BDV

Synthesis and properties of 2-(2-pyridyl)-1-azaazulene

ArticleTETRAHEDRON LETTERS. 48(26): 4471-4475 (2007)journal articl