Simbatch: An API for Simulating and Predicting the Performance of Parallel Resources Managed by Batch Systems

A New Adsorption Rate Equation in Batch Systems

10.26434/chemrxiv.6209984.v1 ◽

2018 ◽

Author(s):

yongson hong ◽

Kye-Ryong Sin ◽

Jong-Su Pak ◽

Chol-Min Pak

Keyword(s):

Experimental Data ◽

Kinetic Analysis ◽

Adsorption Kinetics ◽

Rate Equation ◽

Kinetic Models ◽

Adsorption Kinetic ◽

Adsorption Rate ◽

Batch Systems ◽

New View

In this paper, the deficiencies and cause of previous adsorption kinetic models were revealed, new adsorption rate equation has been proposed and its validities were verified by kinetic analysis of various experimental data. This work is a new view on the adsorption kinetics rather than a comment on the previous adsorption papers.

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ARSENATE BIOSORPTION BY IRON-MODIFIED PINE SAWDUST IN BATCH SYSTEMS: KINETICS AND EQUILIBRIUM STUDIES

BioResources ◽

10.15376/biores.7.2.1389-1404 ◽

2012 ◽

Vol 7 (2) ◽

Cited By ~ 5

Author(s):

María Aranzazú López-Leal ◽

Raúl Cortés-Martínez ◽

Ruth Alfaro-Cuevas-Villanueva ◽

Héctor Eduardo Martínez-Flores ◽

Consuelo De Jesús Cortés-Penagos

Keyword(s):

Equilibrium Studies ◽

Pine Sawdust ◽

Batch Systems

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Enhancement of the performance of constructed wetlands for wastewater treatment in winter: the effect of Tubifex tubifex

RSC Advances ◽

10.1039/c6ra00153j ◽

2016 ◽

Vol 6 (41) ◽

pp. 34841-34848 ◽

Cited By ~ 9

Author(s):

Yan Kang ◽

Jian Zhang ◽

Huijun Xie ◽

Zizhang Guo ◽

Pengfei Li ◽

...

Keyword(s):

Wastewater Treatment ◽

Constructed Wetlands ◽

Constructed Wetland ◽

Water Purification ◽

Tubifex Tubifex ◽

Batch Systems ◽

Potential Use

An improved constructed wetland (CW) with the addition ofTubifex tubifexin winter was studied in laboratory batch systems. The outcomes of this study indicate that the potential use ofTubifex tubifexcould improve the ecosystem and water purification by CWs in winter.

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Consolidating the interactive analysis and Grid infrastructure at DESY

EPJ Web of Conferences ◽

10.1051/epjconf/202024507003 ◽

2020 ◽

Vol 245 ◽

pp. 07003

Author(s):

Christoph Beyer ◽

Thomas Finnern ◽

Martin Flemming ◽

Andreas Gellrich ◽

Thomas Hartmann ◽

...

Keyword(s):

Lessons Learned ◽

Tier 2 ◽

Interactive Analysis ◽

Batch Systems ◽

Batch System ◽

Start Up ◽

High Responsiveness ◽

Primary Focus ◽

Set Up ◽

National Analysis

Within WLCG, the DESY site in Hamburg is one of the largest Tier-2 sites with about 18500 CPU cores for Grid workloads. Additionally, about 8000 CPU cores are available for interactive user analyses in the National Analysis Factory [NAF]. After migrating these two batch systems onto a common HTCondor based set-up during the previous four years, we recapitulate the lessons learned during the transition especially since both use cases differ in their workloads. For Grid jobs start-up latencies are negligible and the primary focus is on an optimal utilization of the resources. Complementary, users of the NAF expect a high responsiveness of the batch system as well as the storage for interactive analyses. In this document, we will also give an outlook to future developments and concepts for the DESY high-throughput computing. In the ongoing evolution of the HTC batch system, we are exploring how to integrate anonymous jobs with the batch system as back-end for Function-as-a-Service workflows as well as an option for dynamic expansions to remote computing resources.

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Conversion of Fructose to HMF in a Continuous Fixed Bed Reactor with Outstanding Selectivity

Molecules ◽

10.3390/molecules23071802 ◽

2018 ◽

Vol 23 (7) ◽

pp. 1802 ◽

Cited By ~ 4

Author(s):

Eric Weingart ◽

Sarah Tschirner ◽

Linda Teevs ◽

Ulf Prüße

Keyword(s):

Large Scale ◽

Continuous Process ◽

Fixed Bed ◽

Fixed Bed Reactor ◽

Water Addition ◽

Batch Systems ◽

Formation Conditions ◽

High Yields ◽

Optimized Conditions ◽

By Products

5-Hydroxymethylfurfural (HMF) is a very promising component for bio-based plastics. Efficient synthesis of HMF from biomass is still challenging because of fast degradation of HMF to by-products under formation conditions. Therefore, different studies, conducted mainly in monophasic and biphasic batch systems with and without water addition have been published and are still under investigation. However, to produce HMF at a large scale, a continuous process is preferable. Until now, only a few studies have been published in this context. In this work, it is shown that fluorous alcohol hexafluoroisopropanol (HFIP) can act as superior reaction solvent for HMF synthesis from fructose in a fixed bed reactor. Very high yields of 76% HMF can be achieved in this system under optimized conditions, whilst the catalyst is very stable over several days. Such high yields are only described elsewhere with high boiling reaction solvents like dimethylsulfoxide (DMSO), whereas HFIP with a boiling point of 58 °C is very easy to separate from HMF.

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Hexavalent chromium removal using aerobic activated sludge batch systems added with powdered activated carbon

Water SA ◽

10.4314/wsa.v33i2.49077 ◽

2009 ◽

Vol 33 (2) ◽

Author(s):

AMF Orozco ◽

EM Contreras ◽

NC Bertola ◽

NE Zaritzky

Keyword(s):

Activated Carbon ◽

Activated Sludge ◽

Hexavalent Chromium ◽

Powdered Activated Carbon ◽

Chromium Removal ◽

Batch Systems

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Lightweight WLCG Sites

EPJ Web of Conferences ◽

10.1051/epjconf/201921407019 ◽

2019 ◽

Vol 214 ◽

pp. 07019 ◽

Cited By ~ 1

Author(s):

Mayank Sharma ◽

Maarten Litmaath ◽

Eraldo Silva Junior ◽

Renato Santana

Keyword(s):

Grid Services ◽

Management Tools ◽

Batch Systems ◽

Common Interface ◽

Container Orchestration ◽

A Site ◽

Automation Tools ◽

Orchestration Tools ◽

Insight Into ◽

New Framework

This article describes a new framework, called SIMPLE, for settingup and maintaining classic WLCG sites with minimal operational efforts and insights needed into the WLCG middleware. The framework provides a single common interface to install and configure any of its supported grid services, such as Compute Elements, Batch Systems, Worker Nodes and miscellaneous middleware packages. It leverages modern container orchestration tools like Kubernetes, Docker Swarm, and confiuration management tools like Puppet, Ansible, to automate deployment of the WLCG services on behalf of a site admin. The framework is modular and extensible by design. Therefore, it is easy to add support for more grid services as well as infrastructure automation tools to accommodate diverse scenarios at different sites. We provide insight into the design of the framework and our efforts towards development, release and deployment of its first implementation featuring CREAM E, TORQUE Batch System and TORQUE based Worker Nodes.

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