Results 131 to 140 of about 6,356,541 (351)

Blending modelling in a process manufacturing system [PDF]

open access: yes
integer programming;manufacturing;blending ...
Ashayeri, J.   +2 more
core   +1 more source

A rounding algorithm for integer programs

open access: yesDiscrete Applied Mathematics, 1994
The integer program (IP): \(\min cx\) subject to \(Ax\geq b\), \(x\) integer, is under consideration. Firstly, a linear program is solved, then a rounding procedure is proposed, that is an algorithm to transform a received solution to an integer vector. This algorithm is polynomial.
Ramaswamy Chandrasekaran   +1 more
openaire   +3 more sources

Programmable Cryogenic Memory in a Ge/GeSi Heterostructure

open access: yesAdvanced Electronic Materials, EarlyView.
A highly programmable memory function that occurs due to a charge tunneling and trapping mechanism is demonstrated in a Ge/GeSi heterostructure field‐effect thransistor. Over three orders‐of‐magnitude control over the conductance state of the device is achieved using either the device SET or the device RESET process, suggesting potential for ...
Adelaide Bradicich, Tzu‐Ming Lu
wiley   +1 more source

Techno-economic performance analysis in a nanogrid with Hybrid Renewable Energy Sources using classical optimization technique

open access: yesEnergy Reports, 2021
Optimization algorithms are tools used in the planning and operations of renewable energy-based distributed power systems. Mixed integer linear programming as a classical optimization method is considered in the literature for sizing nanogrid systems due
Gourab Das, M. De, K.K. Mandal
doaj  

Revealing Localized Dark‐Exciton Populations in 2D Perovskites via Magneto‐Optical Microscopy

open access: yesAdvanced Energy Materials, EarlyView.
Magneto‐optical microscopy is used on metal halide perovskites for the first time to reveal the heterogenous nature of exciton emission in 2D perovskites. The study reveals that the morphology of 2D perovskite thin films has a crucial impact on localisation of bright and dark excitons.
Christopher G. Bailey   +7 more
wiley   +1 more source

Dissecting Extreme Price Fluctuations in Mineral Fertilizers: Regularities and Co‐Movements in Light of Global Food Security

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Extreme swings in food prices can put food security at risk. Fertilizer prices are among the main drivers of food prices. This work explores the recurrent behavior of the extreme global fertilizer price fluctuations underlying food price dynamics.
Massimiliano Calvia
wiley   +1 more source

Hardware acceleration of number theoretic transform for zk‐SNARK

open access: yesEngineering Reports, EarlyView., 2023
An FPGA‐based hardware accelerator with a multi‐level pipeline is designed to support the large‐bitwidth and large‐scale NTT tasks in zk‐SNARK. It can be flexibly scaled to different scales of FPGAs and has been equipped in the heterogeneous acceleration system with the help of HLS and OpenCL.
Haixu Zhao   +6 more
wiley   +1 more source

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