Results 81 to 90 of about 249,312 (242)

Simultaneous non-negative matrix factorization for multiple large scale gene expression datasets in toxiciology [PDF]

open access: yes, 2012
Non-negative matrix factorization is a useful tool for reducing the dimension of large datasets. This work considers simultaneous non-negative matrix factorization of multiple sources of data.
Mudaliar, Manikhandan A. V.   +7 more
core   +2 more sources

Fredholm factorization of Wiener-Hopf scalar and matrix kernels [PDF]

open access: yes, 2007
A general theory to factorize the Wiener-Hopf (W-H) kernel using Fredholm Integral Equations (FIE) of the second kind is presented. This technique, hereafter called Fredholm factorization, factorizes the W-H kernel using simple numerical quadrature.
V. Daniele   +3 more
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

On Factorization of Integers with Restrictions on the Exponents

open access: yes, 2007
For a fixed k ∈ N we consider a multiplicative basis in N such that every n ∈ N has the unique factorization as product of elements from the basis with the exponents not exceeding k. We introduce the notion of k-multiplicativity of arithmetic functions, and study several arithmetic functions naturally defined in k-arithmetics.
Litsyn, Simon, Shevelev, Vladimir
openaire   +3 more sources

Charting Endocrine Progenitors Across Species and Organs

open access: yesAdvanced Science, EarlyView.
Endocrine progenitors give rise to the hormone‐producing cells of the pancreas and intestine. Using single‐cell multiomics and proteomics, this study compares these progenitors across species, systems, and organs, mapping the conserved and species‐specific gene regulatory networks that guide their formation.
Changying Jing   +21 more
wiley   +1 more source

CRYPTANALYSIS BIOINSPIRED METHODS OF ASYMMETRIC KEY ON THE BASIS OF COMPOSITE NUMBER FACTORIZATION

open access: yesAdvanced Engineering Research, 2011
The application of the bioinspired methods for handling the cryptanalysis problem of the asymmetric encryption algorithms on the basis of the composite number factorization is considered.
Alexander S. Sergeyev   +3 more
doaj  

A New Secure Encryption Scheme Based on Group Factorization Problem

open access: yesIEEE Access, 2019
As special types of factorization of finite groups, logarithmic signatures and covers have been used as the main components of cryptographic keys for secret key cryptosystems such as $PGM$ and public key cryptosystems like $MST_{1}$ , $MST_{2 ...
Yue Cong   +5 more
doaj   +1 more source

On the number of prime factors of integers IV

open access: yesJapanese journal of mathematics :transactions and abstracts, 1957
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +7 more sources

Factoring Integers Using SIMD Sieves [PDF]

open access: yes, 2007
We describe our single-instruction multiple data (SIMD) implementation of the multiple polynomial quadratic sieve integer factoring algorithm. On a 16K MasPar massively parallel computer, our implementation can factor 100 digit integers in a few days. Its most notable success was the factorization of the 110-digit RSA-challenge number, which took about
Dixon, B., Lenstra, Arjen K.
openaire   +3 more sources

Using underapproximations for sparse nonnegative matrix factorization [PDF]

open access: yes
Nonnegative Matrix Factorization (NMF) has gathered a lot of attention in the last decade and has been successfully applied in numerous applications.
GILLIS, Nicolas, GLINEUR, François
core  

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