Tokyo Institute of Technology

Exploring foot pressure patterns for skiing experience classification in a simulator-based environment

Abstract This study investigated whether deep learning can distinguish groups of ski experience based on plantar-pressure distributions measured during simulator-based training and whether classifier outputs change during repeated training. Weight-shift images from 27 participant...

Liquid-Crystalline Polymer Alloy Design through Interfacial Reactions Enabled by In Situ Polymerization and Reactive Blending

Abstract Liquid-crystalline polymers (LCPs), an important class of super engineering thermoplastics, exhibit outstanding melt processability and are attractive materials for designing high-performance polymer alloys. However, the fundamental insights required to overcome macrosco...

High-Entropy Lanthanoid Oxide Catalysts for Oxidative Coupling of Methane

Abstract High-entropy engineering of metal oxides provides a powerful platform for developing highly active and structurally robust catalysts; however, its application to heterogenous catalysis that requires stringent selectivity control remains largely unexplored. The low-temper...

Watanabe–Strogatz invariants in the Liouvillian dynamics of coupled phase oscillators via the Koopman framework

Abstract In dynamical systems, invariants, i.e. constants of motion conserved along the trajectory, play important roles in characterizing the system's dynamical behaviour. Recent applications of the Koopman operator framework to nonlinear dynamical systems have provided new insi...

Synthesis, Structures, and Properties of Cyclopenta‐Fused Anthra[1,2‐ a ]anthracene Derivatives as New Polycyclic Aromatic Compounds

Three new cyclopenta-fused (CP) polycyclic aromatic compounds were synthesized from anthra[1,2-a]anthracenes by direct C─C bond formation in the internal region by Scholl reaction or by benzo fusion at the external corner through Pd-catalyzed cyclization. X-ray analysis and DFT c...

Hour-scale response of low-Earth-orbit satellite altitude to extreme geomagnetic storms revealed by the NinjaSat CubeSat during the 2024 solar maximum

Abstract Extreme geomagnetic storms accelerate low-Earth-orbit satellite decay by inflating the thermosphere, yet the hour-scale pathway from solar-wind energy to atmospheric heating is poorly understood. Using the GNSS receiver of the NinjaSat CubeSat ( $$\sim 500$$ km, $$97^\ci...

Remarks on the conjectures of Capparelli, Meurman, Primc and Primc

Abstract In a series of two papers, S. Capparelli, A. Meurman, A. Primc, M. Primc (CMPP) and then M. Primc put forth three remarkable sets of conjectures, stating that the generating functions of coloured integer partitions in which the parts satisfy restrictions on the multiplic...

Quantitative Imaging of Water Diffusion in Brain Parenchyma at Cellular Resolution Using Stimulated Raman Scattering Microscopy

ABSTRACT The diffusion dynamics of water within the cerebral cortex regulate solute transport and are fundamental to overall brain function. However, cellular‐level microscopic water dynamics within the brain parenchyma remain poorly understood due to a lack of direct, high‐resol...

Benchmarking token mixers for efficient transformer-based learned video compression

Learned video compression has rapidly evolved, with recent approaches demonstrating potential in complex context modeling. However, these performance gains often come at the cost of significant complexity in both framework design and computation-heavy modules, obscuring the effic...

Cassini CDA observes compositional segregation of Enceladus’ ice grains from slow freezing and fragmentation of oceanic spray

Salt-rich ice particles, termed Type 3, are a major compositional group within Enceladus’ plume and Saturn’s E ring and are thought to represent frozen micrometer-sized aerosolized droplets of Enceladus’ salty subsurface ocean. Here, we present an analysis on the basis of ≈1000 m...

Understanding the Structure–Performance Relationship for Organic Thin-Film Transistors Using Liquid-Crystalline Organic Semiconductors

Abstract Liquid-crystalline organic semiconductors are rapidly gaining attention as next-generation materials for organic field-effect transistors (OFETs) due to their high charge mobility and thermal durability. However, thermal treatment at temperatures exceeding the transition...

Direct Sputtering Deposition of a Zn 1− x Ge x O x +1 Buffer Layer With a Controllable Conduction Band for Cd‐Free Cu(In,Ga)S 2 Solar Cells

Cu(In,Ga)S 2 (CIGS) is a promising candidate material for the absorber layer in tandem solar cells, but the unfavorable conduction band offset with the conventional CdS buffer layer means that an alternative n‐type buffer layer material is required. Here, n‐type Zn 1− x Ge x O x...

A Unified Framework for Motion Estimation and Online Camera Orientation Calibration Using a Ground-View Event Camera

Accurate motion estimation and online camera orientation calibration are important for onboard vision systems on ground vehicles. Ground-view sensing is attractive for these tasks because the ground is typically static, close to the vehicle, and continuously observable, but fast...

Testing and Quantifying Economic Resilience

ABSTRACT Assessing whether an economy returns to its pre‐crisis growth path is central to the study of economic resilience, yet standard econometric tools are difficult to apply to global crises: they require a cross‐section of unaffected control economies and are vulnerable to b...

Dynamic Bending of Carbodiimide Anions Derives Uniaxial Negative Thermal Expansion in ZnNCN

Abstract Materials exhibiting negative thermal expansion (NTE), characterized by anomalous lattice contractions upon heating, have attracted considerable attention because of the unique attendant changes in crystal structure. A wide variety of compounds, including metal oxides, f...

Screening Lithium-Ion Conductors Based on Local and Global Topology

Abstract The discovery of high-performance solid-state electrolytes remains a critical challenge for all-solid-state Li-ion batteries. To accelerate the identification of novel Li-ion conductors, we developed a hierarchical screening framework combining local structure order para...

Assembly-Pathway Regulation Dictates pH-Responsive Actuation in the R-Body Protein Machinery

Abstract Refractile bodies (R-bodies) are protein assemblies that form intracellular rolls and extend into spirals in response to environmental stimuli. Type 51 R-body assembles from four Reb proteins and undergoes rapid, repeatable ∼50-fold extension. Although R-bodies were desc...

Ultrahigh flow strength in shocked nanopolycrystalline diamond

Extreme pressures and temperatures create conditions that allow even hard and brittle materials to flow plastically. Despite extensive research, the limits of flow strength under such conditions remain uncertain, and the mechanisms driving deformation at the relevant stresses are...

Harnessing endogenous carbon monoxide for cancer-selective drug synthesis

Synthetic chemistry within living systems offers a transformative strategy for precision medicine by enabling the targeted generation of therapeutic agents directly at disease sites. Carbon monoxide (CO), an endogenous gasotransmitter upregulated in many cancer phenotypes, repres...

REAP1/AtSWAP70 integrates RAB5 and ROP signalling during sexual reproduction

Small GTPases of the Ras superfamily are critical regulators of diverse cellular processes. While crosstalk between their signalling pathways has been documented in animals, similar mechanisms remain unexplored in plants, where small GTPases have undergone unique evolutionary div...