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Magnetic Particle Imaging (MPI) is a highly sensitive imaging method that enables the visualization of magnetic tracer materials with a temporal resolution of more than 46 volumes per second. In MPI the size of the field of view scales with…

A small tabletop experiment for a direct measurement of the speed of light to an accuracy of few percent is described. The experiment is accessible to a wide spectrum of undergraduate students, in particular to students not majoring in…

Physics Education · Physics 2009-11-13 Kenichiro Aoki , Takahisa Mitsui

How to weigh something as precise as possible is a constant endeavor for human being, and mass sensing has been essential to scientific research and many other aspects of modern society. In this work, we explore a special approach to mass…

Optics · Physics 2025-02-25 Jiawei Zheng , Jinlian Zhang , Yangzheng Li , Luis J. Martınez , Bing He , Qing Lin

A model of quantum measurement is proposed, which aims to describe statistical mechanical aspects of this phenomenon, starting from a purely Hamiltonian formulation. The macroscopic measurement apparatus is modeled as an ideal Bose gas, the…

Statistical Mechanics · Physics 2016-08-31 Armen E. Allahverdyan , Roger Balian , Theo M. Nieuwenhuizen

We consider a situation where the state of a system is represented by a real-valued vector. Under normal circumstances, the vector is zero, while an event manifests as non-zero entries in this vector, possibly few. Our interest is in the…

Statistics Theory · Mathematics 2011-12-30 Ery Arias-Castro

The operations of linear algebra, calculus, and statistics are routinely applied to measurement scales but certain mathematical conditions must be satisfied in order for these operations to be applicable. We call attention to the conditions…

General Mathematics · Mathematics 2007-05-23 Jonathan Barzilai

We propose a novel iterative process to establish the minimum separation between two ellipsoids. The method maintains one point on each surface and updates their locations in the theta-phi parametric space. The tension along the connecting…

Computational Geometry · Computer Science 2026-03-25 Dariush Amirkhani , Junfeng Zhang

In camera measurement systems, specialized equipment such as telecentric lenses is often employed to measure parts with narrow tolerances. However, despite the use of such equipment, measurement errors can occur due to mechanical and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Ahmet Gokhan Poyraz , Ahmet Emir Dirik , Hakan Gurkan , Mehmet Kacmaz

Measurement is a fundamental building block of numerous scientific models and their creation. This is in particular true for data driven science. Due to the high complexity and size of modern data sets, the necessity for the development of…

Artificial Intelligence · Computer Science 2022-04-26 Tom Hanika , Johannes Hirth

In this paper, a new Smartphone sensor based algorithm is proposed to detect accurate distance estimation. The algorithm consists of two phases, the first phase is for detecting the peaks from the Smartphone accelerometer sensor. The other…

Other Computer Science · Computer Science 2018-01-09 Ahmad Abadleh , Eshraq Al-Hawari , Esra'a Alkafaween , Hamad Al-Sawalqah

Motion segmentation is currently an active area of research in computer Vision. The task of comparing different methods of motion segmentation is complicated by the fact that researchers may use subtly different definitions of the problem.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Pia Bideau , Erik Learned-Miller

\emph{A maximal distance minimizer} for a given compact set $M \subset \mathbb{R}^2$ and some given $r > 0$ is a set having the minimal length (one-dimensional Hausdorff measure) over the class of closed connected sets $\Sigma \subset…

Metric Geometry · Mathematics 2021-06-03 D. D. Cherkashin , A. S. Gordeev , G. A. Strukov , Y. I. Teplitskaya

This article explores assistive devices for upper limb movement in people with disabilities through a systematic review based on the PRISMA methodology. The studied devices encompass technologies ranging from orthoses to advanced robotics,…

Magnetic interaction between a weighing sample and an external magnetic field allows to measure characteristics of magnetic field (a sample with known magnetic characteristics), as well as the magnetic properties of a sample (a known…

This paper describes the development of a scale to measure technology acceptance in smart agriculture. The scale is intended for use in diverse situations, ranging for the evaluation of existing technologies already in widespread use, to…

Human-Computer Interaction · Computer Science 2022-03-30 Rosemary J Thomas , Rebecca Whetton , Andy Doyle , David Coyle

We present a simple measurement and analysis technique to determine the fraction of optical loss due to both radiation (scattering) and linear absorption in microphotonic components. The method is generally applicable to optical materials…

Optics · Physics 2009-11-13 Matthew Borselli , Thomas J. Johnson , Oskar Painter

The main aim of this article is that students, at the basic level of education, gain a quantitative understanding of the size of molecules by performing a simple experiment easily designed within the classroom.

A novel method is presented for measuring impulsive forces generated by devices which are fed with medium power microwave signals. The forces are measured with a torsion balance or weighing scale, as usual, but the microwave signal is…

Instrumentation and Detectors · Physics 2017-06-19 Chris P. Duif

The use of an infrared sensor as a new alternative to measure position as a function of time in kinematic experiments was investigated using a microcontroller as data acquisition and control device. These are versatile sensors that offer…

Physics Education · Physics 2016-02-04 F. Marinho , L. Paulucci

This paper is about similarity between objects that can be represented as points in metric measure spaces. A metric measure space is a metric space that is also equipped with a measure. For example, a network with distances between its…

Discrete Mathematics · Computer Science 2020-11-03 Evgeny Dantsin , Alexander Wolpert