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排序方式: 共有338条查询结果,搜索用时 31 毫秒
11.
Kenichi Mori Michiaki Sakamoto Jin Matsushima Daisuke Inoue Kenichirou Naka Ken Sumiyoshi 《Journal of the Society for Information Display》2009,17(6):513-518
Abstract— In order to improve the reflective contrast ratio of transflective IPS‐LCDs, a novel pixel design for a normally white reflective IPS has been proposed. In this design, the large‐inter‐electrode‐spacing layout using a novel driving method and a double‐layered electrode have effectively reduced the light leakage. By applying these two technologies, a transflective IPS‐LCD has been successfully demonstrated with a high contrast ratio (15:1) in the reflective mode and a wide‐viewing‐angle characteristic in the transmissive mode. 相似文献
12.
Eight subjects participated in a subjective experiment of eight conditions to investigate the effects of heated seats in vehicles on skin temperature, thermal sensation and thermal comfort during the initial warm-up period. The experimental conditions were designed as a combination of air temperature in the test room (5, 10, 15, or 20 °C) and heated seat (on/off). The heated seat was effective for improving thermal comfort during the initial warm-up period when air temperature was lower than 15 °C. Use of heated seats prevented decreases in or increased toe skin temperature. Heated seats also increased foot thermal sensation at 15 and 20 °C. Optimal thermal sensation in contact with the seat was higher when air temperature was lower. Optimal skin temperature in contact with the seat back was higher than that with the seat cushion. Moreover, these optimal skin temperatures were higher when air temperature was lower. 相似文献
13.
14.
Yasuhiro Yogo Michiaki Kamiyama Takamichi Iwata Noritoshi Iwata Takashi Ishikawa 《Metallurgical and Materials Transactions A》2012,43(3):893-899
In this article, the isothermal flow stress in supercooled austenite was measured for a high hardenability steel. Supercooled
austenite forms at the nonequilibrium phase and changes into other phases within a short time. It was confirmed that conventional
tensile tests, which require maintaining a constant temperature before stretching, cannot accurately measure the flow stress
in supercooled austenite. Therefore, a new tensile test named “the continuous cooling tensile test” was developed. In this
test, stretching is conducted during continuous cooling. In the continuous cooling tensile test, the flow stress between 673 K
and 973 K (400 °C and 700 °C) was measured. Microscopic observations of the continuous cooling test results verified that
the microstructures were supercooled austenite. 相似文献
15.
16.
Yannhui Lou Yuta Okawa Zhaokui Wang Shigeki Naka Hiroyuki Okada 《Organic Electronics》2013,14(3):1015-1020
The electron transport capability of 4,4′-bis[N-(1-napthyl)-N-phenyl-amino] biphenyl (α-NPD) was investigated by fundamental physical measurements named as current–voltage (I–V) electrical property evaluation and displacement current measurement (DCM). In electron-dominated devices, the I–V characteristics of α-NPD were similar as that of (8-hydroxyquinolino) aluminum (Alq3) owing to their same order of electron mobilities. The interface of Al/LiF and α-NPD was proven to be an Ohmic contact through the evaluation of I–V characteristics at low bias regime (<3 V). And an electron injection barrier, 0.21 eV, at Al/LiF/α-NPD was obtained by extrapolating the temperature dependent I–V curves. The electron transport behavior in α-NPD film was further confirmed by DCM evaluations. Furthermore, an efficient white organic light emission device was successfully fabricated by using α-NPD as hole transport layer and electron transport layer, respectively. 相似文献
17.
Toshihiko AritaHidetsugu Hitaka Kimitaka MinamiTakashi Naka Tadafumi Adschiri 《The Journal of Supercritical Fluids》2011,57(2):183-189
Supercritical hydrothermal syntheses of metal nanoparticles were investigated. Organic metal salt and hydrogen gas produced by water catalyzed decomposition of formic acid was employed as metal sources and reduction agent, respectively. The formation of iron was verified by measuring the magnetic property of the products by superconducting quantum interference device (SQUID) magnetometer as well as crystallographic analysis by X-ray diffraction (XRD). As predicted by the free energy calculation of reduction of metal oxides by hydrogen molecule, silver, palladium, copper, nickel and cobalt nanoparticles were synthesized without using surface modifier, whereas, iron could be synthesized at small yield. The main product was iron oxides (mainly magnetite). In order to increase the yield of iron, hexanoic acid was employed as an in situ surface modifier of the synthesis. The surface modification lessened the size of the synthesized nanoparticles and increased the yield of iron. The optimum condition for iron synthesis was also investigated, as a result, 7.6% yield of iron was achieved. 相似文献
18.
Toluene-tolerant gram-positive bacteria were isolated and identified to belong to the genus Bacillus. They grew in a medium containing yeast extract and in the presence of a separate phase of toluene or other hydrocarbons, but not when aliphatic alcohols were present. The isolate Bacillus cereus R1 did not metabolise or transform toluene. Toluene accumulation in its cells was rapid, unless the organism was supplied with glucose as energy source. In bacteria adapted to toluene, the amount of toluene accumulating in cells was one-half that in nonadapted bacteria. Valinomycin (K+ ionophore) and o-vanadate (ATPase inhibitor) as inhibitors of energy metabolism partly counteracted the effect of glucose as energy source. These results suggest the presence of an efflux mechanism for toluene in strain R1. The nature of this mechanism and its function in a solvent-tolerant gram-positive strain are discussed. 相似文献
19.
Phase reaction and diffusion path of the SiC/Ti system 总被引:2,自引:0,他引:2
Bonding of SiC to SiC was conducted using Ti foil at bonding temperatures from 1373 to 1773 K in vacuum. The total diffusion
path between SiC and Ti was investigated in detail at 1673 K using Ti foil with a thickness of 50 μm. At a bonding time of
0.3 ks, TiC at the Ti side and a mixture of Ti5Si3C
x
and TiC at the SiC side were formed, yielding the structure sequence of β-Ti/Ti+TiC/Ti5Si3C
x
+TiC/SiC. Furthermore, at the bonding time of 0.9 ks, a Ti5Si3C
x
layer phase appeared between SiC and the mixture of Ti5Si3C
x
and TiC. Upon the formation of Ti3SiC2 (T phase) after the bonding time of 3.6 ks, the complete diffusion path was observed as follows: β-Ti/Ti+TiC/Ti5Si3C
x
+TiC/Ti5Si3C
x
/Ti3SiC2/SiC. The activation energies for growth of TiC, Ti5Si3C
x
, and Ti3SiC2 were 194, 242, and 358 kJ/mol, respectively. 相似文献
20.
The formation of solid solution in the Co3−xMnxO4 system in atmospheres of oxygen, air and argon was examined at a constant temperature of 1000 °C. In oxygen, a small amount
of the NaCl-type compound was found to co-exist with the cubic spinel in the composition rangex≤0.1. A single phase of the cubic spinel was found in the range 0.1 to 1.3 and the tetragonal spinel above 1.9. In the rangex=1.3 to 1.9 where the cubic and tetragonal spinels co-exist they both have very broadened diffraction line profiles. In air,
the identified phases and the changes in their lattice constants with composition were very similar to those in oxygen, except
that the NaCl-type compound and the cubic spinel co-existed over a larger range. In argon, the cubic spinel was not observed
over any of the composition range and the NaCI-type compound and the tetragonal spinel co-existed in the wide range of 1.1
to 2.3. The experimental results are discussed with regard to the cation distribution in the spinel and also to the relative
stability of Co3+- and Mn3+-ions under the low partial pressure of oxygen. 相似文献