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排序方式: 共有427条查询结果,搜索用时 15 毫秒
61.
Shohei Koizumi Masakazu Hori Yosuke Hayashida Kazuo Naito Seiji Kawabata Yudai Ishigaki Yoshiaki Kito 《Journal of the Society for Information Display》2019,27(11):679-690
Organic thin‐film transistors (OTFTs) can be fabricated via a wet process and have exceptionally high flexibility. Therefore, production using the roll‐to‐roll (RtoR) method is expected. We succeeded in developing a new OTFT wet fabrication process adaptable to the RtoR process. Utilizing the electroless plating method for wiring formation, all materials can be formed in a wet process and can be patterned using the photolithography process. In addition, we succeeded in fabricating OTFT on an A4‐type flexible substrate using RtoR direct imaging exposure system. 相似文献
62.
Shohei Yumiyama Eri Fujisawa Yasuhiro Konishi Toshiyuki Nomura 《Advanced Powder Technology》2018,29(9):2204-2210
Positively charged polystyrene latex (PSL) nanoparticles (NPs) dispersed in physiological saline (154?mM NaCl solution) are taken up by yeast cells. However, in low ionic strength solutions, the yeast cells are covered with the NPs, leading to cell death. The environmental conditions under which NPs are taken up are therefore limited. In this study, we attempted to control the uptake of positively charged PSL NPs by Saccharomyces cerevisiae in 5?mM NaCl solution using a water-soluble polymer. Addition of a small amount of anionic sodium carboxymethylcellulose (CMC), which has a carboxyl group, to 5?mM NaCl solution allowed the uptake of PSL NPs by living yeast cells. In contrast, non-ionic methylcellulose did not affect the NP behavior. This is because the negatively charged CMC adhered to the positively charged PSL NP surfaces and the surface charge changed from positive to negative. Atomic force microscopy using a single-NP probe consisting of one NP immobilized on the flattened end of the silicon nitride tip showed that CMC significantly reduced the interaction force between a negatively charged living yeast cell and a positively charged PSL NP. 相似文献
63.
Nakanishi A Kawada Y Yasuda T Akiyama K Takahashi H 《The Review of scientific instruments》2012,83(3):033103
We demonstrated attenuated total reflection (ATR) spectroscopy with an integrated prism system that included a terahertz emitter, a terahertz receiver, and an ATR prism. The ATR prism had two internal off-axis parabolic mirrors for, respectively, collimating and focusing the terahertz waves. The Fresnel loss at each interface was reduced, and the total propagation efficiency was 3.36 times larger than when using a non-integrated prism system. The refractive index of water samples calculated from the experimental data showed good agreement with values reported in the literature. 相似文献
64.
We demonstrate that a tweezers tip can be directly used to manipulate single-walled carbon nanotube (SWCNT) films and individual SWCNTs (or bundles). Specifically, we can align, bend, and even cut SWCNTs on the substrates where they are grown. With this manipulation technique, we are able to control the position, direction, and length of SWCNTs and fabricate complex patterns. Because of the large size of the tweezers tip, long SWCNTs (hundreds of micrometers in length) are found to be critical for the realization of such manipulations. This finding would contribute to the property studies on nanotubes and the fabrication of nanodevices. 相似文献
65.
Masatake Kawada Zen‐Ichiro Kawasaki Kenji Matsu‐ura Toshio Musashiya Satoru Kuroki Teruya Osawa Hiroki Tanaka 《Electrical Engineering in Japan》2000,132(1):38-45
Partial discharge (PD) within voids in a solid insulating system is a symptom and/or a direct cause of deterioration of a generator winding. It is reported that PD is a very short duration current and/or voltage pulse, about 1 to 5 ns. Generally PD emits an electromagnetic wave which is a broadband range signal (≈ gigahertz). Therefore, we developed a new system for detecting the electromagnetic wave, especially microwaves (gigahertz) associated with a material defect of the winding. From the point of view of preventing accidents of insulation breakdown, it is important to assess the condition of the winding. We applied our system to a dielectric breakdown test to learn the relation between the characteristics of the microwaves and the insulation condition of the winding. The dielectric breakdown test is believed to be useful for estimating the minimum breakdown voltage which is a criterion of the insulation condition of the winding. Experimental results showed that this system was able to assess the insulation condition by measuring the number of pulses and the amplitude of the microwaves per voltage cycle. © 2000 Scripta Technica, Electr Eng Jpn, 132(1): 38–45, 2000 相似文献
66.
A Phytol‐Enriched Diet Activates PPAR‐α in the Liver and Brown Adipose Tissue to Ameliorate Obesity‐Induced Metabolic Abnormalities
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67.
We propose a new criterion of stability or instability of one-directional superflow of Bose condensates. In d-dimensional condensates with steady superflow, spectral function $\rho(\mathbf {r},\omega)=\sum_{l}|\langle l|\hat{n}(\mathbf{r})|\mathrm{g}\rangle|^{2}\delta (\omega-E_{l}+E_{\mathrm{g}})$ of the local density $\hat{n}(\mathbf{r})$ at the critical velocity behaves as ρ(r,ω)∝ ω β with β<d at low ω while ρ(r,ω)∝ ω d below the critical velocity. We confirm the validity of our criterion within the Gross-Pitaevskii-Bogoliubov theory. In the presence of a penetrable repulsive potential, β is given by d?2 at the critical velocity, where gray-soliton-phonon emission leads to the breakdown of superfluidity. In the case of the Landau instability in spatially uniform systems, on the other hand, β=?1/3,1/3,1 for d=1,2,3, respectively. 相似文献
68.
Atsushi Hosoi Narumichi Sato Yasuyuki Kusumoto Keita Fujiwara Hiroyuki Kawada 《International Journal of Fatigue》2010,32(1):29-36
High-cycle fatigue features of over 108 cycles, particularly the initiation and propagation of edge delamination considering the effects of transverse cracks, were investigated using quasi-isotropic carbon-fiber-reinforced plastic (CFRP) laminates with a stacking sequence of [45/0/−45/90]s in this study. In the relationship between a transverse crack density and initiation and growth of edge delamination, it was found that fatigue damage growth behavior varied depending on applied stress. It was observed that edge delamination initiated and grew at parts where transverse cracks were dense at ordinary applied stress, whereas it was observed that edge delamination grew before or simultaneously with transverse crack propagation at a low applied stress and high-cycle loading. In addition, the critical transverse crack density where delamination begins growing was calculated to evaluate the interaction between transverse crack and edge delamination growth. 相似文献
69.
Shohei Yamamoto Ryo Sakatsume Keiji Takeno 《International Journal of Hydrogen Energy》2018,43(10):5199-5205
Relationships between flame lift-off heights and reservoir pressure were experimentally investigated in order to clarify blow-off process of hydrogen non-premixed jet flames with a highly under-expanded jet structure. In this study, straight nozzles with diameters of 0.34, 0.53, 0.75 and 1.12 mm were used with maximum reservoir pressure for spouting hydrogen of 13.2 MPa. Experimental results are shown that lift-off heights in stable under-expanded jet flames do not vary significantly and are independent of the reservoir pressure in the range of studied pressure. However, the lifted heights are affected by the nozzle diameters and become smaller as the nozzle diameters increase. From experimental results, the condition for the blow-off process of under-expanded subsonic jet flames was proposed. It was concluded that the under-expanded jet flame could be blown off when the maximum waistline position, where radial distance from the jet axis to an elliptic stoichiometric contour reaches its maximum comes closer to the nozzle exit than the edge of the jet flame base. 相似文献
70.