A5021125198- X-ray Diffraction in Crystallography
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Quasicrystal Structures and Properties
- Crystallization and Solubility Studies
- Synthetic Organic Chemistry Methods
- Magnesium Alloys: Properties and Applications
- Aerospace Engineering and Energy Systems
- Semiconductor materials and interfaces
- Fluorine in Organic Chemistry
- Chemical Synthesis and Reactions
- Robotic Locomotion and Control
- Mineralogy and Gemology Studies
- Hand Gesture Recognition Systems
- Underwater Vehicles and Communication Systems
- Catalysis and Hydrodesulfurization Studies
- Catalysts for Methane Reforming
- Robotic Path Planning Algorithms
- Control and Dynamics of Mobile Robots
- Thermodynamic and Structural Properties of Metals and Alloys
The University of Tokyo
1992-2024
Tokyo University of Technology
2008-2009
The selective transformation of a less reactive carbonyl moiety in the presence more ones can realize straightforward and environmentally benign chemical processes. However, such is highly challenging because reactivity compounds, one most important functionalities organic chemistry, depends on substituents carbon atom. Herein, we report an Ir catalyst for hydrogenolysis urea derivatives, which are least affording formamides amines. Although formamide, as well ester, amide, carbamate...
The development of methods for the chemical recycling polyurethanes is recognized as an urgent issue. Herein, we report Ir-catalyzed hydrogenolysis urethane C–O bond to produce formamides and alcohols, where both ester amide functionalities are tolerated. chemoselectivity observed counterintuitive generally accepted electrophilicity order carbonyl compounds. Hydrogenolysis urea isocyanurate, potential byproducts in polycondensation process polyurethanes, also achieved alongside selective...
Abstract It has been found in a Mg Ga-Al-Zn alloy that an icosahedral phase produced by melt-spinning transforms to the 1/1 cubic approximant of at 653 K and successively 2/1 around 668 upon heating. Structural relations two phases are discussed, framework projection scheme, on basis X-ray diffraction data. Electrical resistivities have measured from 4·2 280 for single-phase samples phases. The one show similar behaviour, which resisitivity is ∼ 120 μω2 cm 4-2 temperature coefficient...
The development of methods for the chemical recycling polyurethanes is recognized as an urgent issue. Herein, we report Ir-catalyzed hydrogenolysis urethane C–O bond to produce formamides and alcohols, where both ester amide functionalities are tolerated. chemoselectivity observed counterintuitive generally accepted electrophilicity order carbonyl compounds. Hydrogenolysis urea isocyanurate, potential byproducts in polycondensation process polyurethanes, achieved alongside selective...
製品設計など, 人の手の動きのモデル化は重要である。モデル化の基本となる手部姿勢計測のための, 光学式モーションキャプチャ装置およびMRIを用いた被験者手部のリンク構成推定手法および各指節姿勢の計測手法を示す。
Abstract It has been found in Mg39.5(Ga1−xAlx)20.5Zn40.0 alloys that an icosahedral phase produced by melt-spinning transforms to rational approximant phases of the quasicrystal on heating. In alloy with composition x = 0.2, a 3/2–2/1–2/1 orthorhombic 3.693 nm, b 2.296 nm and c 2.268 nm. 0.7, 1/1 cubic 1.421 at 653 K successively 2/1 2.300 around 668 Structural relations are discussed, framework projection scheme, basis X-ray diffraction data. Key Words: Quasicrystalicosahedral...
The selective transformation of a less reactive carbonyl moiety in the presence more ones can realize straightforward and environmentally benign chemical processes. However, such is highly challenging because reactivity compounds, one most important functionalities organic chemistry, depends on substituents carbon atom. Herein, we report an Ir catalyst for hydrogenolysis urea derivatives, which are least affording formamides amines. Although formamide, as well ester, amide, carbamate...
Dynamic skating propelled by lateral swing motion is three dimensionally analyzed. With introducing moving coordinate attached to support skate and switching the coordinates as changes, divided into one dimensional along axis inverted pendulum like in normal plane against axis. And equations of velocities before after impacts on contact legs are formulated obtain initial condition for next motion. Simulation performed with these formulations. it illustrated that we can dynamic limit cycle...
This paper proposes a new vehicle type mechanism which has 4-Wheel-Drive Omni-Wheels with 4-Wheel-Steering. is superset of conventional Omni-directional and some car mechanism. Then DOF fixed, the can be applied many driving methods. Steering characteristics illustrated geometrical analysis. A straight method non-step gear ratio by symmetric steering turning difference speed are tested. Experiments held model between analysis experiments caused dynamic effect such as or cornering force.