Search results for: GREEN TPUS

• GREEN CHEMISTRY

  Journals

  ISSN: 1463-9262 , eISSN: 1463-9270

• Green TPUs from Prepolymer Mixtures Designed by Controlling the Chemical Structure of Flexible Segments

  Publication

  • P. Kasprzyk
  • E. Głowińska
  • P. Parcheta-Szwindowska
  • K. Rohde
  • J. Datta

  - INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES - Year 2021

  This study concerns green thermoplastic polyurethanes (TPU) obtained by controlling the chemical structure of flexible segments. Two types of bio-based polyether polyols—poly(trimethylene glycol)s—with average molecular weights ca. 1000 and 2700 Da were used (PO3G1000 and PO3G2700, respectively). TPUs were prepared via a two-step method. Hard segments consisted of 4,4?- diphenylmethane diisocyanates and the bio-based 1,4-butanodiol...

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• Optimization of Execution Time under Power Consumption Constraints in a Heterogeneous Parallel System with GPUs and CPUs

  Publication

  • P. Czarnul
  • P. Rościszewski

  - Year 2014

  The paper proposes an approach for parallelization of computations across a collection of clusters with heterogeneous nodes with both GPUs and CPUs. The proposed system partitions input data into chunks and assigns to par- ticular devices for processing using OpenCL kernels defined by the user. The sys- tem is able to minimize the execution time of the application while maintaining the power consumption of the utilized GPUs and...

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• KernelHive: a new workflow-based framework for multilevel high performance computing using clusters and workstations with CPUs and GPUs

  Publication

  • P. Rościszewski
  • P. Czarnul
  • R. Lewandowski
  • M. Schally - Kacprzak

  - CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE - Year 2016

  The paper presents a new open-source framework called KernelHive for multilevel parallelization of computations among various clusters, cluster nodes, and finally, among both CPUs and GPUs for a particular application. An application is modeled as an acyclic directed graph with a possibility to run nodes in parallel and automatic expansion of nodes (called node unrolling) depending on the number of computation units available....

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• Opus

  Journals

  ISSN: 1517-7017

• Preconditioners with Low Memory Requirements for Higher-Order Finite-Element Method Applied to Solving Maxwell’s Equations on Multicore CPUs and GPUs

  Publication

  • A. Dziekoński
  • G. Fotyga
  • M. Mrozowski

  - IEEE Access - Year 2018

  This paper discusses two fast implementations of the conjugate gradient iterative method using a hierarchical multilevel preconditioner to solve the complex-valued, sparse systems obtained using the higher order finite-element method applied to the solution of the time-harmonic Maxwell equations. In the first implementation, denoted PCG-V, a classical V-cycle is applied and the system of equations on the lowest level is solved...

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• Green Materials

  Journals

  ISSN: 2049-1220 , eISSN: 2049-1239

• Green Letters

  Journals

  ISSN: 1468-8417

• Green Finance

  Journals

  ISSN: 2643-1092

• Green chromatography

  Publication

  • J. Płotka-Wasylka
  • M. Tobiszewski
  • A. Sulej-Suchomska
  • M. Kupska
  • T. Górecki
  • J. Namieśnik

  - JOURNAL OF CHROMATOGRAPHY A - Year 2013

  Analysis of organic compounds in samples characterized by different composition of the matrix is very important in many areas. A vast majority of organic compound determinations are performed using gas or liquid chromatographic methods. It is thus very important that these methods have negligible environmental impact. Chromatographic techniques have the potential to be greener at all steps of the analysis, from sample collection...

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