Results 51 to 60 of about 64,724 (310)

Preparation of Palm Oil Ash Nanoparticles: Taguchi Optimization Method by Particle Size Distribution and Morphological Studies

open access: yesApplied Sciences, 2020
The interest in the utilization of palm oil ash is high, mainly due to their renewable material, opportunity to enhance the properties and possibility to use in a wide range of applications. Palm oil ash is the by-product of the palm oil mill boilers and
Samsul Rizal   +6 more
doaj   +1 more source

On Graph-Orthogonal Arrays by Mutually Orthogonal Graph Squares [PDF]

open access: yesSymmetry, 2020
During the last two centuries, after the question asked by Euler concerning mutually orthogonal Latin squares (MOLS), essential advances have been made. MOLS are considered as a construction tool for orthogonal arrays. Although Latin squares have numerous helpful properties, for some factual applications these structures are excessively prohibitive ...
Mahmoud Shibl Higazy   +2 more
openaire   +1 more source

Optimization and Prediction of Reaction Parameters of Plastic Pyrolysis oil Production Using Taguchi Method [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Design of Experiments (DoE) is a powerful guiding tool that can help researchers to identify the main variables that affect the performance characteristics.
Gopinath S, Devan P.K..
doaj   +1 more source

On irredundant orthogonal arrays

open access: yesDiscrete Applied Mathematics
An orthogonal array (OA), denoted by $\text{OA}(M, n, q, t)$, is an $M \times n$ matrix over an alphabet of size $q$ such that every selection of $t$ columns contains each possible $t$-tuple exactly $λ=M / q^t$ times. An irredundant orthogonal array (IrOA) is an OA with the additional property that, in any selection of $n - t$ columns, all resulting ...
Maryam Bajalan, Peter G. Boyvalenkov
openaire   +2 more sources

Orthogonal F-rectangles, orthogonal arrays, and codes

open access: yesJournal of Combinatorial Theory, Series A, 1986
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Walter T. Federer, John P. Mandeli
openaire   +1 more source

Multiband Real-Time Coherent Optical OFDM Reception up to 110 Gb/s with 600-km Transmission

open access: yesIEEE Photonics Journal, 2010
We demonstrate field-programmable gate array (FPGA)-based multiband orthogonal frequency-division multiplexing (OFDM) signal reception after 600-km standard single-mode fiber (SSMF) transmission and 400-ps differential-group delay (DGD) at 110-Gb/s.
Simin Chen, Yiran Ma, William Shieh
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

On incomplete orthogonal arrays

open access: yesJournal of Combinatorial Theory, Series A, 1985
\textit{E. T. Parker} [Proc. Am. Math. Soc. 13, 219-221 (1962; Zbl 0105.015)] remarked that if an incomplete orthogonal array with parameters (1,r,s,k,2) exists then \(s\geq (r-1)k\). As the author shows, this result is easily extended to incomplete orthogonal arrays (1,r,s,k,t) for which \(s\geq (r-t+1)k\). \textit{K. A. Bush} [Ann. Math.
openaire   +1 more source

Transforming a pair of orthogonal tRNA-aminoacyl-tRNA synthetase from Archaea to function in mammalian cells. [PDF]

open access: yesPLoS ONE, 2010
A previously engineered Methanocaldococcus jannaschii tRNA(CUA Tyr)-tyrosyl-tRNA synthetase pair orthogonal to Escherichia coli was modified to become orthogonal in mammalian cells.
Gabrielle Nina Thibodeaux   +6 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

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