Tohoku University · 공학
타케시 요나구치 교수의 연구실은 에너지 변환 및 보존 기술, 특히 태양광 발전소재와 관련된 고효율 소재 개발에 중점을 두고 있습니다. 플라스틱 기반 염료감응형 태양전지의 효율 향상, 적외선 영역까지 활용 가능한 옥시드계 염료의 설계, 그리고 보다 안정적인 보행 제어를 위한 마찰 및 균형 분석 기술까지 다각도로 연구를 진행하고 있습니다. 특히 신발창의 마찰 특성과 보행 중 균형 유지 능력에 대한 실험적·모델링적 접근이 두드러집니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The efficiency of a plastic-substrate dye-sensitized solar cell was much improved by a new method consisting of a press method without heat treatment, light confinement effect of TiO(2) film and water-based TiO(2) paste; this device shows the highest light-to-electrical energy conversion efficiency based on plastic-substrate dye-sensitized solar cells, 7.4% under 100 mW cm(-2) (1 sun) AM1.5 illumination.
Bis(bipyridyl) osmium(II) dyes having a beta-diketonate ligand were synthesized in order to utilize visible and infrared light for dye-sensitized solar cells. Compared to black dye, under AM 1.5 irradiation (100 mW cm(-2)), DSCs using our novel Os dyes exhibited a better spectral response in the near-IR region (by 1050 nm) and showed a higher J(SC) value of 23.7 mA cm(-2).
The present study examined whether a new footwear outsole with tread blocks and a hybrid rubber surface pattern, composed of rough and smooth surfaces, could increase slip resistance and reduce the risk of fall while walking on a wet floor surface. A drag test was performed to measure static and dynamic coefficient of friction (SCOF and DCOF, respectively) values for the footwear with the hybrid rubber surface pattern outsole and two types of commercially available boots that are conventionally
In this study, we aimed to discover (1) the effects of age on dynamic balance measures, including the margin of stability (MOS), whole-body angular momentum (H), and misalignment of the desired and measured centers of pressure (dCOP and mCOP, respectively) in the anteroposterior (AP) and mediolateral (ML) directions, (2) the relationship between gait parameters and these balance measures, and (3) the relationships between these balance measures. We used the kinetic and kinematic data of 151 part
Abstract We present two easily applicable models for simultaneous estimation of the convective velocity ( u 0 ) and the hydrodynamic dispersion coefficient ( D 0 ) from breakthrough curve (BTC) data. The two models can be used for both saturated and unsaturated flow. Both models are derived from an analytical solution to the convection‐dispersion equation (CDE). The first model, labeled the “slope method,” is exact. It uses the slope of the BTC to estimate u 0 and D 0 . The second method is appr
