Masahiro SUGAWARA

ORCID: 0000-0003-1577-6023
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About
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Research Areas
  • Freezing and Crystallization Processes
  • Heat Transfer and Optimization
  • Phase Change Materials Research
  • Icing and De-icing Technologies
  • nanoparticles nucleation surface interactions
  • Nanofluid Flow and Heat Transfer
  • Homotopy and Cohomology in Algebraic Topology
  • Arctic and Antarctic ice dynamics
  • Advanced Topics in Algebra
  • Engineering Applied Research
  • Geothermal Energy Systems and Applications
  • Solar Thermal and Photovoltaic Systems
  • Advanced Topology and Set Theory
  • Algebraic structures and combinatorial models
  • Heat Transfer Mechanisms
  • Smart Materials for Construction
  • Spacecraft and Cryogenic Technologies
  • Heat and Mass Transfer in Porous Media
  • Radiative Heat Transfer Studies
  • Mathematics and Applications
  • Adsorption and Cooling Systems
  • Climate change and permafrost
  • Heat Transfer and Boiling Studies
  • Thermal Radiation and Cooling Technologies
  • Lattice Boltzmann Simulation Studies

Akita University
2008-2019

The University of Tokyo
2004

Advanced Institute of Industrial Technology
2004

Tokyo University of Science
2004

Kōchi University
2004

National Defense Academy of Japan
2004

Toshiba (Japan)
1993

Hokkaido University
1977-1979

Czech Academy of Sciences, Institute of Mathematics
1960

Kyoto University
1960

Rationale & ObjectiveEpidemiologic and clinical studies have suggested that urate-lowering therapy may slow the progression of chronic kidney disease (CKD). However, definitive evidence is lacking.Study DesignRandomized, double-blind, placebo-controlled trial.Setting Participants467 patients with stage 3 CKD asymptomatic hyperuricemia at 55 medical institutions in Japan.InterventionParticipants were randomly assigned a 1:1 ratio to receive febuxostat or placebo for 108 weeks.OutcomesThe...

10.1053/j.ajkd.2018.06.028 article EN cc-by-nc-nd American Journal of Kidney Diseases 2018-08-31

Commutative g r o u p s .L e t G b a countable C W-group, and : E .--43 an universal bundle with group where classify-su ch th at map -1 f G--->G the m ultiplication x -, -G are both cel- lu la s. M ilnor, [3], Theorem 5.1.(1),proved that such grou h CW-complex as classifying space.Theorem 1. 3. A classif y ing space, w hich is also W -complex, of commutative CW -group n H-space.2. S tron gly homotopy-multiplicative H , ' be topological monoids, i.e., associative H-spaces.If --.1 1

10.1215/kjm/1250775911 article EN Kyoto journal of mathematics 1960-01-01

Abstract Attribute-based medicine is essential for patient-centered medicine. To date, the groups of patients with chronic kidney disease (CKD) requiring urate-lowering therapy are clinically unknown. Herein, we evaluated efficacy febuxostat using a cross-classification, attribute-based research approach. We performed post hoc analysis multicenter, randomized, double-blind, placebo-controlled trial data 395 stage 3 CKD and asymptomatic hyperuricemia. Participants were divided into or placebo...

10.1038/s41598-022-07737-9 article EN cc-by Scientific Reports 2022-03-08

The problem considered in this paper is the determination of Rayleigh number marking onset free convection a horizontal melted layer ice heated from above under uniform radiant heat flux. In analysis, linear perturbation techniques are used to derive sixth-order differential equation subject hydrodynamic and thermal boundary conditions. series-solution method utilized obtain an eigenvalue for case where lower surface (ice surface) kept at 0°C upper subjected general An experimental...

10.1115/1.3450661 article EN Journal of Heat Transfer 1977-02-01

10.32917/hmj/1206137976 article EN Hiroshima Mathematical Journal 1971-01-01

10.1016/0017-9310(88)90246-3 article EN International Journal of Heat and Mass Transfer 1988-07-01

This paper is concerned with the melting of a horizontal ice layer sticking to substrate by using halogen lamps, which are comparatively short wave radiation sources. in visible and infrared spectral range may be employed remove from structures subject atmospheric icing. It concluded that behavior transfer cloudy depends great deal on density including air bubbles produce scattering radiation. Also phenomenon back-melting caused radiant energy penetrating through observed. Moreover, it shown...

10.1115/1.3450942 article EN Journal of Heat Transfer 1979-02-01

10.32917/hmj/1206137974 article EN Hiroshima Mathematical Journal 1971-01-01

This experiment simulates the freezing of water in a layer earth by use porous bead layer. The is cooled from above. beads are 1, 5, and 11-mm-dia glass steel. When predominant heat transfer mode an unfrozen conduction, rate not affected diameter. However, natural convection greatly maximum density at 4°C. An approximate numerical analysis which does treat effects predicts well range 0°C < T2 4°C 26°C (T2 = lower plate temperature).

10.1115/1.3250446 article EN Journal of Heat Transfer 1988-02-01

10.1016/s0017-9310(99)00230-6 article EN International Journal of Heat and Mass Transfer 2000-05-01

10.32917/hmj/1206135967 article EN Hiroshima Mathematical Journal 1977-01-01
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