Results 11 to 20 of about 22,919 (246)

A Modern Approach for Classification of Soil Aggregates based on Stereo Vision [PDF]

open access: yesJournal of Agricultural Machinery, 2020
IntroductionStereo vision is an approach to 3D information from multiple 2D views of a scene. The 3D information can be extracted from a pair image, as known stereo pair by estimating the relative depth of points in the scene.Soil aggregate size ...
A Azizi   +3 more
doaj   +1 more source

A new class of infinite products, and Euler's totient

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
We introduce some new infinite products, the simplest being(1−y)∏k=2∞∏j∈ϕk(1−ykqj)1/k=(1−y1−qy)1/(1−q),where ϕk is the set of positive integers less than and relatively prime to k, valid for |y|∧|qy| both less than unity, with q≠1.
Geoffrey B. Campbell
doaj   +1 more source

Automatic Morphological Sieving: Comparison between Different Methods, Application to DNA Ploidy Measurements [PDF]

open access: yesAnalytical Cellular Pathology, 1999
The aim of the present study is to propose alternative automatic methods to time consuming interactive sorting of elements for DNA ploidy measurements. One archival brain tumour and two archival breast carcinoma were studied, corresponding to 7120 elements (3764 nuclei, 3356 debris and aggregates).
Christophe Boudry   +8 more
openaire   +3 more sources

Technology for the Recovery of Lithium from Geothermal Brines

open access: yesEnergies, 2021
Lithium is the principal component of high-energy-density batteries and is a critical material necessary for the economy and security of the United States.
William T. Stringfellow   +1 more
doaj   +1 more source

The ridge integration method and its application to molecular sieving, demonstrated for gas purification via graphdiyne membranes

open access: yesMolecular Systems Design & Engineering, 2022
A method for the effective calculation of transmission probabilities for processes of molecular sieving is presented and tested against Eyring theory by comparison to Molecular Dynamics simulations.
Christian W. Binder   +2 more
openaire   +2 more sources

A Decision-Tree-Based Algorithm for Speech/Music Classification and Segmentation

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2009
We present an efficient algorithm for segmentation of audio signals into speech or music. The central motivation to our study is consumer audio applications, where various real-time enhancements are often applied.
Lavner Yizhar, Ruinskiy Dima
doaj   +2 more sources

A Spheroid Model for the Role of Shape in Particle Size Analysis

open access: yesKONA Powder and Particle Journal, 2015
Standard procedure in particle size analysis is to express size as an equivalent sphere diameter. As a consequence, results obtained by procedures based on different kinds of response give different results.
Richard Hogg
doaj   +1 more source

Area-Time Efficient Implementation of the Elliptic Curve Method of Factoring in Reconfigurable Hardware for Application in the Number Field Sieve [PDF]

open access: yesIEEE Transactions on Computers, 2010
A novel portable hardware architecture of the Elliptic Curve Method of factoring, designed and optimized for application in the relation collection step of the Number Field Sieve, is described and analyzed. A comparison with an earlier proof-of-concept design by Pelzl et al.
Kris Gaj   +7 more
openaire   +1 more source

Six-Dimensional Pose Estimation of Molecular Sieve Drying Package Based on Red Green Blue–Depth Camera

open access: yesSensors
This paper aims to address the challenge of precise robotic grasping of molecular sieve drying bags during automated packaging by proposing a six-dimensional (6D) pose estimation method based on an red green blue-depth (RGB-D) camera. The method consists
Yibing Chen   +5 more
doaj   +1 more source

Effect of nanoclay particles on some physical and mechanical properties of soils [PDF]

open access: yesJournal of Agricultural Machinery, 2016
Introduction: As a mechanical tillage practices on soil preparation improve soil structure, increase in porosity, better distribution of soil aggregates and eventually modify the physical properties of soil.
H Sharifnasab, N Abbasi
doaj   +1 more source

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