We combine ultra-high-resolution fMRI with machine learning predictions to investigate the neural correlates of image memorability. Using ViTMem, a visual transformer-based tool, we estimated memorability scores for over 70,000 natural scenes from NSD dataset. Our analyses reveal that higher correlate increased activation in ventral regions (fusiform gyrus, middle occipital cortex) and medial temporal areas (hippocampus, amygdala). Notably, also observed significant engagement...

A theoretical analysis of the lateral force as measured with a scanning microscope is performed, showing that signal contains topography-induced component which proportional to slope surface, in addition arising from tangential force. Measurements carried out on corrugated samples (gold, indium-tin-oxide, diamond) are analysed within framework this theory basis simple physical model for forces, taking into account repulsive normal force, friction and an adhesion The correlation between...

Abstract Glycidyl azide polymer (GAP) is an important energetic binder candidate for new minimum signature solid composite rocket propellants, but the mechanical properties of such GAP propellants are often limited. The characteristics mainly determined by nature system and binder‐filler interactions. In this work, we report a detailed investigation into curing systems diol with objective attaining best possible as evaluated uniaxial tensile testing non‐plasticized specimens. We started out...

The effects of energetic heavy ions passing through a solid are reflected in the size, shape, and structure individual latent tracks. Their detailed study thus provides information on primary processes energy deposition, which results bond breaking, lattice disruption, increased chemical reactivity. Furthermore, ion track cross sections, being objects very limited well suited for studies material properties such as friction nanometer scale. present work displays scanning force microscopy...

The mechanism of how lateral forces can produce artifacts in topographical images obtained by scanning force microscopy is analyzed theoretically. It shown that due to the detailed elastic behavior sensing cantilever, a microscope based on light beam deflection method particularly subject such artifacts. They are produced forces, arising not only from friction but also topography itself. Consequently, modified self-distortion topography. various effects contributing image contrast...

In this work a size-structured juvenile-adult population model is considered. The linearized dynamical behavior of stationary solutions analyzed using semigroup and spectral methods. regularity the governing linear allows us to derive biologically meaningful conditions for stability solutions. main emphasis in on interaction resulting consequences dynamics system. addition, we investigate numerically effect non-zero inflow, due an external source newborns, system special case ingredients.

A range of precision resistive voltage dividers for use in high frequency power standards is currently under development at the National Measurement Institute, Australia (NMIA). The paper describes design divider (RVD) and methods its evaluation. target uncertainty ratio 100 μV/V kHz both amplitude phase voltages up to 240 V.

We employ semigroup and spectral methods to analyze the linear stability of positive stationary solutions a generalized size-structured Daphnia model. Using regularity properties governing semigroup, we are able formulate general condition, which permits an intuitively clear interpretation in special case model ingredients. Moreover, derive comprehensive instability criterion that reduces elegant condition for classical population terms inherent net reproduction rate individuals.

In this work we consider a size-structured cannibalism model with the ingredients (fertility, growth, and mortality rate) depending on size (ranging over an infinite domain) general function of standing population (environmental feedback). Our focus is asymptotic behavior system, in particular effect long-term dynamics. To end, formally linearize system about steady state establish conditions terms which yield uniform exponential stability governing linear semigroup. We also show how point...

Measurements of the ac-dc difference a thermal converter have been performed using Josephson waveform synthesizer and precision buffer amplifier at frequencies from 10 Hz to 4 kHz, showing agreement with conventional standards better than 1 μV/V up kHz. In addition, method finding operating parameters programmable array that corresponds minimal uncertainty is discussed.

A system designed for precision measurement of ac-dc difference thermal voltage converters in terms a programmable Josephson standard is under development at the National Measurement Institute, Australia, collaboration with Institute Advanced Industrial Science and Technology, Japan. The agreement between new calculable presently better than 0.5 μV/V frequencies up to 40 Hz voltages 0.75 V.

The paper presents the design and evaluation of a precision buffer amplifier with amplitude phase uncertainties less than 1 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-6</sup> at audio frequencies xmlns:xlink="http://www.w3.org/1999/xlink">-4</sup> 200 kHz.

This paper describes a simple and effective technique for calibrating thermal converters an ac–dc voltage transfer difference using Josephson waveform synthesizer transconductance amplifier. Preliminary measurements uncertainty analysis confirm the possibility of achieving systematic uncertainties below 0.1 µV V−1 at frequencies up to 1 kHz.

The Josephson impedance bridge at the Physikalisch-Technische Bundesanstalt has progressed from its first implementation to a semiautomated calibration tool able perform frequency sweep 25 Hz 10 kHz in less than 2 h. An analysis of systematic errors is presented, which focuses on measurement capacitance standards. We identified transients as major source uncertainty and show number solutions. Additionally, extending four terminal system for lower uncertainties value impedances been tested....

We discuss the linearized equations of fiber spinning in nonisothermal viscous regime. prove that solutions governing are generated by an eventually compact semigroup bounded linear operators. This result gives us justification to relate stability numerical resolution spectrum its generator. report several findings, confirming prior results on for melt-spinning.

A pulse-driven ac Josephson voltage standard (ACJVS) has been set up at the National Measurement Institute, Australia (NMIA) with assistance from Institute of Standards and Technology (NIST). The ACJVS forms basis a high precision calibration setup for measurement standards audio frequencies. can presently produce to 100 mV. inductive divider increases range V frequencies 57 Hz 1 kHz. Preliminary measurements conducted on thermal transfer voltmeter show agreement conventional within its...

Laser diodes are efficient and compact devices operating in a wide range of wavelengths. Boosting power by beam combining while maintaining good quality has been long-standing challenge. We discuss various approaches for with emphasis on solutions pursued at DirectPhotonics. Our design employs single emitter as they exhibit highest brightness excellent reliability. In first step, after fast axis collimation, all one subunit stacked side-by-side monolithic slow-axis-collimator thus scaling...

The paper describes a computer-controlled multi-range current transformer with input ranges from 0.125 A to 20 and an output voltage of 1 V suitable for use in electrical power standards the highest precision.

In the present paper we analyze linear stability of a hierarchical size-structured population model where vital rates (mortality, fertility and growth rate) depend both on size general functional density ("environment"). We derive regularity properties governing semigroup, implying that is governed by dominant real eigenvalue semigroup generator, which arises as zero an associated characteristic function. special case neither rate nor mortality environment, explicitly calculate function use...