Results 21 to 30 of about 14,330,907 (267)

Fast Adipogenesis Tracking System (FATS)—a robust, high-throughput, automation-ready adipogenesis quantification technique

open access: yesStem Cell Research & Therapy, 2019
Adipogenesis is essential in in vitro experimentation to assess differentiation capability of stem cells, and therefore, its accurate measurement is important.
Chengxiang Yuan   +7 more
doaj   +1 more source

On reference star recognition and identification

open access: yesGeodesy and Cartography, 2014
The paper deals with a research in the area of automation of positional star observations. In order to fully employ recent progress in imaging technologies, star image recognition and reference star identification process should gain comparable level of ...
Ansis Zariņš   +2 more
doaj   +1 more source

CD10 marks non-canonical PPARγ-independent adipocyte maturation and browning potential of adipose-derived stem cells

open access: yesStem Cell Research & Therapy, 2021
Background Effective stem cell therapy is dependent on the stem cell quality that is determined by their differentiation potential, impairment of which leads to poor engraftment and survival into the target cells.
Smarajit Chakraborty   +8 more
doaj   +1 more source

Integrated representation for discrete Fourier and wavelet transforms using vector notation

open access: yesMehran University Research Journal of Engineering and Technology, 2022
Many mathematical operations are implemented easily through transform domain operations. Multiple transform domain operations are used independently in large and complex applications.
Tariq Javid   +3 more
doaj   +1 more source

Klasifikasi Belimbing Menggunakan Naïve Bayes Berdasarkan Fitur Warna RGB

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2017
Post harvest issues on star fruit are produced on a large scale or industry is sorting. Currently, star fruit classified by rind color analysis visually human eye. This method does not effective and inefficient.
Fuzy Yustika Manik, Kana Saputra Saragih
doaj   +1 more source

Multitraining support vector machine for image retrieval [PDF]

open access: yes, 2006
Relevance feedback (RF) schemes based on support vector machines (SVMs) have been widely used in content-based image retrieval (CBIR). However, the performance of SVM-based RF approaches is often poor when the number of labeled feedback samples is small.
Tao, D.   +7 more
core   +1 more source

RESEARCH ON MULTI-SOURCE SATELLITE IMAGE DATABASE MANAGEMENT SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
For the exploration and analysis of electricity, it is necessary to continuously acquire multi-star source, multi-temporal, multi-level remote sensing images for analysis and interpretation.
N. Fu   +4 more
doaj   +1 more source

A Factor Graph Approach for Attitude Estimation of Spacecraft Using a Stellar Gyroscope

open access: yesIEEE Access, 2019
A stellar gyroscope is an attitude sensor that is composed of a micro star sensor and a micro-electro-mechanical system gyroscope. The attitude is the output by fusing the information of the two sensors.
Shiqiang Wang   +3 more
doaj   +1 more source

Star-Identification System Based on Polygon Recognition

open access: yesAerospace, 2023
Accurate attitude determination is crucial for satellites and spacecraft. Among attitude determination devices, star sensors are the most accurate. Solving the lost-in-space problem is the most critical function of the star sensor.
Gustavo E. Ramos-Alcaraz   +2 more
doaj   +1 more source

Optical system design of star sensor and stray light analysis

open access: yesJournal of the European Optical Society-Rapid Publications, 2018
Background Star sensor is one of the precise attitude determination sensors. It is an electro-optical system that takes an image from a set of stars and by comparing it with the star catalogue determines angle deviation of the satellite and modifies its ...
Mohammad Asadnezhad   +2 more
doaj   +1 more source

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