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1.
Preparation of Aragonite Whiskers 总被引:10,自引:0,他引:10
Yoshio Ota Saburo Inui† Tetsushi Iwashita† Toshihiro Kasuga† Yoshihiro Abe† 《Journal of the American Ceramic Society》1995,78(7):1983-1984
A simple synthetic method for preparing aragonite whiskers has been developed. A suspension of CaCl2 -MgCl2 -Mg(OH)2 with pH ∼9 has been prepared by adding Ca(OH)2 to MgCl2 aqueous solution. CaCO3 whiskers (aragonite phase) have been prepared easily by blowing CO2 -containing gas into the suspension. The whiskers have high aspect ratios ranging from 20 to 80 with diameters of 0.5–1 μm . 相似文献
2.
Two‐way multi‐view 2‐D/3‐D display combining LC lens and HVxDP panel using novel pixel arrangement 下载免费PDF全文
Jin Matsushima Yukie Ibata Kazunori Masumura Takuya Asai Tetsushi Sato Koji Shigemura 《Journal of the Society for Information Display》2016,24(4):252-261
We have developed a two‐way multi‐view 2‐D/3‐D display combining a liquid crystal lens and horizontally and vertically x times‐density pixels (HVxDP) arrangement. The two‐way multi‐view display features the same display resolution in 2‐D and 3‐D modes and a quite small color moiré for landscape and portrait, respectively, when using the HVxDP arrangement. In this paper, we realized suitable 3‐D properties for achieving a good balance between 3‐D moiré and 3‐D crosstalk for landscape and portrait by a two‐way liquid crystal lens with two kinds of focal lengths for the edge part and the center part of the lens. 相似文献
3.
Yoshikazu Iida Masato Hirai Masato Shiga Tetsushi Ono Tatsuki Inuzuka 《Electrical Engineering in Japan》2023,216(1):e23414
We are planning to develop the new Advanced Distribution Automation System (ADAS) equipped with optical communication network and sectionalizer with sensor for more grid reliability and efficiency on maintenance operation. The new system is featured with the function of fault cause or damaged part estimation. The new sectionalizer captures the waveform of electrical line surge originated by fault and the system analyzes the waveform for this function. This paper mainly introduces the system configuration of ADAS and an early stage examination of fault cause estimation technology. 相似文献
4.
5.
Tetsushi Oka Toyokazu Abe Kaoru Sugita Masao Yokota 《Artificial Life and Robotics》2009,13(2):455-459
This article describes a multimodal command language for home robot users, and a robot system which interprets users’ messages
in the language through microphones, visual and tactile sensors, and control buttons. The command language comprises a set
of grammar rules, a lexicon, and nonverbal events detected in hand gestures, readings of tactile sensors attached to the robots,
and buttons on the controllers in the users’ hands. Prototype humanoid systems which immediately execute commands in the language
are also presented, along with preliminary experiments of faceto-face interactions and teleoperations. Subjects unfamiliar
with the language were able to command humanoids and complete their tasks with brief documents at hand, given a short demonstration
beforehand. The command understanding system operating on PCs responded to multimodal commands without significant delay.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
6.
7.
The authors have been working on natural language understanding based on the knowledge representation language L
md
and its application to robot manipulation by verbal suggestion. The most remarkable feature of L
md
is its capability of formalizing spatiotemporal events in good correspondence with human/robotic sensations and actions,
which can lead to integrated computation of sensory, motory and conceptual information. This paper describes briefly the process
from text to robot action via semantic representation in L
md
and the experimental results of robot manipulation driven by verbal suggestion.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
8.
Makoto Sasaki Motoki Inoue Yasuyuki Katada Yuuki Nishida Akiyoshi Taniguchi Sachiko Hiromoto Tetsushi Taguchi 《Science and Technology of Advanced Materials》2012,13(6)
Calcium phosphate was formed on nickel-free high-nitrogen stainless steel (HNS) by chemical solution deposition. The calcium phosphate deposition was enhanced by glutamic acid covalently immobilized on the surface of HNS with trisuccinimidyl citrate as a linker. X-ray diffraction patterns and Fourier transform infrared spectra showed that the material deposited on glutamic acid-immobilized HNS within 24 h was low-crystallinity calcium-deficient carbonate-containing hydroxyapatite (HAp). The biological activity of the resulting HAp-coated HNS was investigated by using a human osteoblast-like MG-63 cell culture. The HAp-coated HNS stimulated the alkaline-phosphate activity of the MG-63 culture after 7 days. Therefore, HAp-coated HNS is suitable for orthopedic devices and soft tissue adhesion materials. 相似文献
9.
Taguchi T Rao Z Ito M Matsuda M 《Journal of materials science. Materials in medicine》2011,22(10):2357-2363
We developed a poly(ethylene glycol) (PEG) derivative with oleyl groups, so-called “cell adhesive”, for the promotion of human
hepatocellular carcinoma HepG2 cell spheroids. Our approach was based on crosslinking of the cell membrane with a cell adhesive
via a hydrophobic interaction. A cell adhesive, PEG derivative with hydrophobic oleyl groups at both ends was synthesized
and characterized. HepG2 spheroids formed when the adhesive was added to cell suspensions. The size of the spheroids increased
with time in culture. In addition, Ammonia elimination of HepG2 spheroid with cell adhesive was 3.4 times higher than that
without cell adhesive. Furthermore, albumin secretion from HeG2 spheroids grown with the cell adhesive for 7 days was 3.3
times that from HepG2 spheroids grown without cell adhesive. Fluorescence microscopy showed greater albumin staining in spheroids
grown with cell adhesive compared with spheroids grown without adhesive. This cell adhesive may be useful not only for single
type of cells but also for multi types of cells to form artificial organs. This cell adhesive will be a key material for liver
tissue engineering when it will apply to primary hepatocytes. 相似文献
10.
Tetsushi Oka Toyokazu Abe Kaoru Sugita Masao Yokota 《Artificial Life and Robotics》2009,14(2):219-223
This article considers the success rates in a multimodal command language for home robot users. In the command language, the
user specifies action types and action parameter values to direct robots in multiple modes such as speech, touch, and gesture.
The success rates of commands in the language can be estimated by user evaluations in several ways. This article presents
some user evaluation methods, as well as results from recent studies on command success rates. The results show that the language
enables users without much training to command home robots at success rates as high as 88%–100%. It is also shown that multimodal
commands combining speech and button-press actions included fewer words and were significantly more successful than single-modal
spoken commands. 相似文献