Results 91 to 100 of about 60,108 (204)

Analysis of an RNG based turbulence model for separated flows [PDF]

open access: yes
A two-equation turbulence model of the K-epsilon type was recently derived by using Renormalization Group (RNG) methods. It was later reported that this RNG based model yields substantially better predictions than the standard K-epsilon model for ...
Speziale, C. G., Thangam, S.
core   +1 more source

Squares: A Fast Counter-Based RNG

open access: yes, 2020
In this article, we propose a new counter-based implementation of John von Neumann's middle-square random number generator (RNG). Several rounds of squaring are applied to a counter to produce a random output. We discovered that four rounds are sufficient to provide satisfactory data. Two versions of the RNG are presented, a 4-round version with 32-bit
openaire   +2 more sources

Techno‐economic and life cycle analysis of renewable natural gas derived from anaerobic digestion of grassy biomass: A US Corn Belt watershed case study

open access: yesGCB Bioenergy
Restoring native grassland vegetation can substantially improve ecosystem service outcomes from agricultural watersheds, but profitable pathways are needed to incentivize conversion from conventional crops.
Olumide Olafasakin   +4 more
doaj   +1 more source

Food Waste to Renewable Natural Gas: A Life Cycle Approach to Circular Economy and Climate Change Mitigation

open access: yesChemical Engineering Transactions
With the growing concerns over food waste management and the need for low-carbon energy alternatives, valorizing organic waste streams into renewable energy gas (RNG) offers a promising solution for both waste reduction and clean energy production.
Yin Lee Boon   +7 more
doaj  

Derivation Pairs on Rings and RNGs

open access: yesAnnales Mathematicae Silesianae
Abstract We generalize a classical result about derivation pairs on function algebras. Specifically, we describe the forms of derivation pairs on rings and rngs (non-unital rings) which are not assumed to be commutative. The proofs are based on knowledge of the solutions of the sine addition formula on a semigroup.
openaire   +2 more sources

مقایسه الگوریتمهای مسطحسازی GG و RNG در رو شهای مسیریابی جغرافیایی شبکه های بیسیم

open access: yesعلوم رایانش و فناوری اطلاعات, 2021
در تحقیقاتی که تا کنون در زمینه الگوریتمهای جغرافیایی گزارش شدده اسد ، به دو روش مسدح سدازی GG و RNG بصدور یکسدان نگاه شدده اسد ، در حالیکه گراف حاصد از ای دو روش صصدوصدیاتی متتاو را ارائه میکنند.
حمیدرضا شهرابی
doaj  

Low Randomness Masking and Shuffling: An Evaluation Using Mutual Information

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2018
Side-channel countermeasure designers often face severe performance overheads when trying to protect a device. Widely applied countermeasures such as masking and shuffling entail generating a large amount of random numbers, which can result in a ...
Kostas Papagiannopoulos
doaj   +1 more source

Extremal covariant quantum operations and POVM's

open access: yes, 2003
We consider the convex sets of QO's (quantum operations) and POVM's (positive operator valued measures) which are covariant under a general finite-dimensional unitary representation of a group.
D'Ariano, Giacomo Mauro
core   +3 more sources

Improving Middle Square Method RNG Using Chaotic Map

open access: yesApplied Mathematics, 2011
One of the classic approaches in PRNGs is the middle square method in which with a simple mathe-matical model generating pseudorandom numbers in high speed and minimum correlation between output numbers. Despite these unique characteristics, the method contains weaknesses that a broader application of this algo- rithm will face.
Hamed Rahimov   +2 more
openaire   +2 more sources

Economic Perspective for Renewable Natural Gas from Food Waste

open access: yesChemical Engineering Transactions
In Malaysia, 45 % of total municipal solid waste is food waste in which government has mandated Act 672 to enforce food segregation approach for several states in Malaysia.
Muhammad Iskandar Mohd Azil   +7 more
doaj  

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