著者

安河内 裕之 増原 慎 木原 信宏

出版者

一般社団法人日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2010, no.2, pp.157-158, 2010-10-12

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Targeting to manufacture of micro fluidic chip masters, the feasibility of the novel micro stereo lithography method which featured 'restrained resin surface by glass and one direction scanning' was studied. We have got better results by new method than by currently method. With the great help of such advantages, we succeeded in making two-depth sample whose minimum channel width was 50 μm at the height of 20 μm.

著者

三幣 康太 北村 謙英 コルテス カルロス 小川 実穂

出版者

一般社団法人日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2014, no.6, pp."20pm1-E6-1"-"20pm1-E6-2", 2014-10-20

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This paper presents an experimental platform to explore effective ambient intelligence systems using a MEMS-based wearable eye-tracking system and tactile display. Ambient intelligence, which allows us to receive useful information on site and at real time from the surrounding environment, requires a method to let the users be aware of the information. Given that our vision and hearing is heavily used, we consider that utilizing of tactile sensation is most effective. In our research, We use an unobtrusive pupil tracker for wearable computer using dye-sensitized photovoltaic cells installed on an eyeglass lens and an electro tactile display. In addition, we made an Android application that enables us to manipulate the Tactile sensations and get information of the eye tracking device.

著者

堀内 亮吾 コルテス カルロス 三木 則尚

出版者

一般社団法人日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2015, no.7, pp."28pm1-E-1-1"-"28pm1-E-1-2", 2015-10-21

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We propose a wearable line-of-sight detection system that utilizes micro-fabricated transparent optical sensors on eyeglasses. These sensors can detect the difference of reflection light intensity between white of eye and pupil. Up until now, we successfully have detected all directions which based on 4 directions (up, down, right, left and), blink by using the proposed system. Our system showed experimentally that the error is as small as 1.5°. In order to develop practical application of our system, we improved our system to detect more precise conditions: open eye, blink, close eye. We finally devised an algorithm which converts these 3 conditions to the input signals.

著者

鄭 東 田中 三郎 宮崎 康次 高尻 雅之

出版者

一般社団法人日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2013, no.5, pp.63-64, 2013-11-04

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We investigated strain and grain size effects on the thermal transport of nanocrystalline bismuth antimony telluride thin films using both experimental studies and modeling. The fabricated thin films exhibited the average grain sizes of 30 < d < 100 nm, and the strain of-0.8% < ε < -1.4% in the c-axis direction whereas that of a-b-axis direction was constant at 1.7%. The thermal conductivities were measured using a 3ω method at room temperature. We calculated the lattice thermal conductivity using a simplified phonon transport model that accounts for the strain effect based on Christoffel equation and Lennard-Jones potential, and the grain size effect based on the full distribution of mean free paths. The theoretical calculation was largely in good agreement with our experimental results, and the detailed results will be discussed in the Symposium.

著者

立花 岳志 Janis Theiss 鈴木 奈々 皆川 泰代 三木 則尚

出版者

一般社団法人 日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2019, 2019

被引用文献数

1

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<p>Biofeedback, which is a technique for controlling human physiological indices by detecting outputs such as heartbeats and brain waves and re-outputting them through a feedback device, has attracted attention. This technique has been applied to the treatment of diseases and maintenance of health. We developed an application that transfers heartbeats detected using a wearable device to a smartphone and re-outputs them to the subject by presenting vibrations. In order to verify the effect of tactile biofeedback using this system, we analyzed the heart rate variability when subjects were given stress-related tasks. The results showed that the heart rate improved when stress was applied compared to the control task.</p>

著者

キム スンヨン 杉本 俊樹 荒木 拓人

出版者

一般社団法人 日本機械学会

雑誌

マイクロ・ナノ工学シンポジウム

巻号頁・発行日

vol.2014, pp._21am2-A6--_21am2-A6-, 2014

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Proton exchange membrane fuel cells (PEMFCs) are useful systems because they operate at lower temperatures than other types of fuel cells. This characteristic causes water management issues. To elucidate effects of water on PEMFC performance, we developed a temperature sensor using micro-electro-mechanical systems (MEMS) techniques. This sensor was placed between the catalyst layer (CL) and the microporous layer (MPL) at the cathode. Slight effects on total cell performance were observed with the insertion of the sensor. This sensor can be applicable to typical PEMFCs without any special equipment such as a transparent separator. In-situ measurement with a temperature sensor showed that the maximum temperature rise at the cathode CL (CCL) was about 9 ℃ at 1.1 A/cm^2. The temperature sensor also showed temperature gradients between the ribs and channels. In addition, we developed a capacitance-type humidity sensor and inserted it in the channel. In-situ measurement with a humidity sensor showed a relative humidity (RH) change in the channel.