DSpace コレクション: 2007-082007-08http://hdl.handle.net/11133/552024-03-28T14:15:23Z2024-03-28T14:15:23Z引き上げ法によるカーボンナノチューブ探針の簡易作製松室, 昭仁高木, 誠岩田, 博之松本, 章宏間野, 日出男http://hdl.handle.net/11133/16772013-11-05T06:17:49Z2007-08-30T15:00:00Zタイトル: 引き上げ法によるカーボンナノチューブ探針の簡易作製
著者: 松室, 昭仁; 高木, 誠; 岩田, 博之; 松本, 章宏; 間野, 日出男
抄録: Carbon nanotubes (CNT) are just beginning to be used as probes for scanning probe microscope (SPM) systems because of the extreme high resolution that can be obtained. But processing of CNT probes have a lot of difficulties such as the need of using large equipments, long synthesizing time, low productivity and high price. A new quick and simple method for synthesizing CNT probes has been under study. In this research, a 'pulling method' is proposed and suitable synthesis conditions are investigated. This method utilizes viscosity and surface tension of solvent and electrophoresis between SPM probe and CNT dispersion liquid. The CNT can be attached to the apex of SPM probe by pulling-up process from CNT dispersion liquid. An etched SPM tungsten probe is pulled from multi wall carbon nanotube (MWNT) dispersion liquid with a bias voltage. The suitable conditions obtained are as follows: isopropyl alcohol is used as the solvent with CNT concentration of 0.05 mg/mL, bias voltage of 14 V and pulling rate of 14 μm/s. The processing time of one trial is within 1 minute and the success rate is about 70 %. It is also possible to prepare multi-connected CNT probe, single wall CNT probe and CNT probe for atomic force microscope. Therefore, our new method is suitable for mass production of CNT probes.2007-08-30T15:00:00Z極微小電流計測型ナノプローブその場観察システムの開発岩田, 博之奥田, 東http://hdl.handle.net/11133/16732013-11-05T06:37:13Z2007-08-30T15:00:00Zタイトル: 極微小電流計測型ナノプローブその場観察システムの開発
著者: 岩田, 博之; 奥田, 東
抄録: Piezo-driving spedcimen holder for Atomic scale high-resolution electron-microscopy (TEM) was realized. Various in-situ experiments in TEM, example for, strucyual variation, contact-force, contact electricalcurrent, bondig, separation were observed. The deformation process of multiwalled carbon nanotubes was directry observed using TEM. High elasticity and the subsequent damage process of the nanotube were demonstrated. In-situ Current-Voltage Characters were caliculated with several multimeters integrated with PC.2007-08-30T15:00:00Zポリウレタン : 構造と物性との相互関係井上, 眞一新井, 隆之http://hdl.handle.net/11133/16742013-12-13T02:58:22Z2007-08-30T15:00:00Zタイトル: ポリウレタン : 構造と物性との相互関係
著者: 井上, 眞一; 新井, 隆之
抄録: Aliphatic and aromatic polyurethanes were prepared from aliphatic and aromatic diisocyanates, such as hexamethylenediisocyanate (HDI) and 4, 4'-diphenylmethanediisocyanate (MDI), and polyoles of ether and ester typies, such as polytetramethyleneglycol (PTMG) and polycaprolactam (PCL), by the prepolymer method, and then its physical properties, such as tensile test, swelling test, DSC and so on, were measured. These results were compared with the chemical structures calculated by MM2. Aliphatic and aromatic polyurethanes have with pseudo-helix-coil structure, and the structures of aliphatic polyurethanes were linear nearly and the structures of aromatic polyurethanes were alternate crossing structure. The physical properties of aliphatic and aromatic polyurethanes were correspondent with the structures calculated MM2 in expectation.2007-08-30T15:00:00Zマイクロ波照射によるゼオライトからの吸着水の脱着促進渡辺, 藤雄齋竹, 基仁窪田, 光宏松田, 仁樹http://hdl.handle.net/11133/16752013-10-31T07:13:43Z2007-08-30T15:00:00Zタイトル: マイクロ波照射によるゼオライトからの吸着水の脱着促進
著者: 渡辺, 藤雄; 齋竹, 基仁; 窪田, 光宏; 松田, 仁樹
抄録: For effective regeneration of the adsorbent used in a desiccant humidity conditioner, the possibility of microwave irradiation for desorption of water from zeolite was studied. To investigate the effect of microwave irradiation on the water desorption rate from zeolite (0.69mm), experiments were conducted in a N_2 flow type adsorption column equipped with a microwave irradiator. Desorption of water from zeolite by microwave heating under conditions of N_2 gas of 30℃ with relative humidity 40%, gas flow rate of 0.053 m/s and microwave power of 200-800 W was compared with that for hot-air heating at 47℃. The following results were obtained. 1. The amount of water desorbed from zeolite was 1.6-2.0 times larger by microwave heating than by hot-air heating. This amount corresponded to that obtained by hot-air heating at 10-16℃ higher than the zeolite bed temperature. It was found that the desorption amount with microwave irradiation was larger than that with hot-air heating, regardless of microwave power. 2. Maximum desorption rate was about 5 times faster by microwave heating at 800 W than that by hot-air heating. 3. Desorption rate with microwave irradiation increased with microwave power, and it decreased linearly with the increase in water adsorption ratio in zeolite.2007-08-30T15:00:00Z