A. Pfeiffer
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Migration of CADI to Fence Open
The CMS Analysis Database Interface (CADI) is a central tool for managing physics publications within the CMS experiment, tracking the life-cycle of analysis projects from inception to publication. To modernize its infrastructure and align…
Development of machine-learning based app for anomaly detection in CMSWEB Open
This paper presents an anomaly detection system for CMSWEB services, a critical component of CMS infrastructure supporting over two dozen web services. The system employs deep learning techniques to enhance service performance and reliabil…
Reinforcement Learning for Semi-Active Vertical Dynamics Control with Real-World Tests Open
In vertical vehicle dynamics control, semi-active dampers are used to enhance ride comfort and road-holding with only minor additional energy expenses. However, a complex control problem arises from the combined effects of (1) the constrai…
Laboratory Scale Evaluation of the Slag Foaming Behavior Open
Due to the ambitious climate targets of the European Union, one can expect that the electric arc furnace (EAF) will gain greater importance in the future of steelmaking. Since slag foaming is a decisive factor in an efficient process, unde…
Implementation of New Security Features in CMSWEB Kubernetes Cluster at CERN Open
The CMSWEB cluster is pivotal to the activities of the Compact Muon Solenoid (CMS) experiment, as it hosts critical services required for the operational needs of the CMS experiment. The security of these services and the corresponding dat…
The Behavior of Phosphorus in the Hydrogen‐Based Direct Reduction—Smelter Ironmaking Route Open
Direct reduction (DR) nowadays relies on high‐grade iron ores, characterized by a high total iron content and low contents of tramp elements. Since their supply is limited and cost‐intensive, applying lower‐grade ores is a relevant topic f…
The Behavior of Direct Reduced Iron in the Electric Arc Furnace Hotspot Open
Hydrogen-based direct reduction is a promising technology for CO2 lean steelmaking. The electric arc furnace is the most relevant aggregate for processing direct reduced iron (DRI). As DRI is usually added into the arc, the behavior in thi…
Evaluation and Implementation of Various Persistent Storage Options for CMSWEB Services in Kubernetes Infrastructure at CERN Open
This paper summarizes the various storage options that we implemented for the CMSWEB cluster in Kubernetes infrastructure. All CMSWEB services require storage for logs, while some services also require storage for data. We also provide a f…
Implementation of a C Library of Kalman Filters for Application on Embedded Systems Open
Having knowledge about the states of a system is an important component in most control systems. However, an exact measurement of the states cannot always be provided because it is either not technically possible or only possible with a si…
Implementation of CMSWEB Services Deployment Procedures using HELM Open
The Compact Muon Solenoid (CMS) experiment heavily relies on the CMSWEB cluster to host critical services for its operational needs. Recently, CMSWEB cluster has been migrated from the VM cluster to the Kubernetes (k8s) cluster. The new cl…
Investigations on the Interaction Behavior between Direct Reduced Iron and Various Melts Open
Since the European Union defined ambitious CO2 emission targets, low-carbon-emission alternatives to the widespread integrated blast furnace (BF)—basic oxygen furnace (BOF) steelmaking strategy—are demanded. Direct reduction (DR) with natu…
Metallurgical Coke Production with Biomass Additives: Study of Biocoke Properties for Blast Furnace and Submerged Arc Furnace Purposes Open
Biocoke has the potential to reduce the fossil-based materials in metallurgical processes, along with mitigating anthropogenic CO2- and greenhouse gas (GHG) emissions. Reducing those emissions is possible by using bio-based carbon, which i…
Advanced Controller Development Based on eFMI with Applications to Automotive Vertical Dynamics Control Open
High-level modeling languages facilitate system modeling and the development of control systems. This is mainly achieved by the automated handling of differential algebraic equations which describe the dynamics of the modeled systems acros…
View article: eFMI: An open standard for physical models in embedded software
eFMI: An open standard for physical models in embedded software Open
This paper summarizes the final research results of the ITEA3 project EMPHYSIS (embedded systems with physical models in the production code software). Its core achievement is the new open eFMI Standard enabling automated workflows from hi…
ESCiMo / CCMI: future simulations scenario RCP6.0, SSTs/SICs from coupled HADGEM2-ES simulation and with interactive ocean, respectively. 1960-2100. Open
Project: Earth System Chemistry Integrated Modelling (ESCiMo) / Chemistry-Climate Modelling Initiative (CCMI) - The consortial project ESCiMo targets on coupled chemistry-climate-simulations using version 2.51 of the European Centre for Me…
VyPR2: A Framework for Runtime Verification of Python Web Services Open
Runtime Verification (RV) is the process of checking whether a run of a system holds a given property. In order to perform such a check online, the algorithm used to monitor the property must induce minimal overhead. This paper focuses on …
View article: A Conditions Data Management System for HEP Experiments
A Conditions Data Management System for HEP Experiments Open
Conditions data infrastructure for both ATLAS and CMS have to deal with the management of several Terabytes of data. Distributed computing access to this data requires particular care and attention to manage request-rates of up to several …
Service-oriented Business Model-Framework - die Entwicklung von Geschäftsmodellen in digital transformierenden Ökosystemen am Beispiel der Elektromobilität Open
Not only since the introduction of digital technologies have the transformation and implementation of technological innovation presented companies with huge chances as well as challenges. Passing sector borders the market emergence of emob…
Monitoring of the infrastructure and services used to handle and automatically produce Alignment and Calibration conditions at CMS Open
The Compact Muon Solenoid (CMS) experiment makes a vast use of alignment and calibration measurements in several crucial workflows in the event selection at the High Level Trigger (HLT), in the processing of the recorded collisions and in …
Continuous and fast calibration of the CMS experiment: design of the automated workflows and operational experience Open
The exploitation of the full physics potential of the LHC experiments requires fast and efficient processing of the largest possible dataset with the most refined understanding of the detector conditions. To face this challenge, the CMS co…
View article: Functional tests of a prototype for the CMS-ATLAS common non-event data handling framework
Functional tests of a prototype for the CMS-ATLAS common non-event data handling framework Open
Since 2014 the ATLAS and CMS experiments share a common vision on the database infrastructure for the handling of the non-event data in forthcoming LHC runs. The wide commonality in the use cases has allowed to agree on a common overall de…
A Web-based application for the collection, management and release of Alignment and Calibration configurations used in data processing at the Compact Muon Solenoid experiment Open
The Compact Muon Solenoid (CMS) experiment makes a vast use of alignment and calibration measurements in several data processing workflows: in the High Level Trigger, in the processing of the recorded collisions and in the production of si…
View article: Model-based Embedded Control using Rosenbrock Integration Methods
Model-based Embedded Control using Rosenbrock Integration Methods Open
Directly generating controller code from models is \nimportant for advanced model-based design. This \npaper describes how Dymola can generate embedded \nC-code from Modelica models, designed to be easy to \nembed, with care about minimal …
Physics performance and fast turn around: the challenge of calibration and alignment at the CMS experiment during the LHC Run-II Open
The CMS detector at the Large Hadron Collider (LHC) is a very complex apparatus with more than 70 million acquisition channels. To exploit its full physics potential, a very careful calibra- tion of the various components, together with an…
Service-oriented Business Model Framework - A Service-dominant Logic based Approach for Business Modeling in the Digital Era Open
The business model (BM) concept has been described as an intermediating tool for managing the transition from technology’s potential value into market outcomes. Unfortunately, current business modeling methodologies do not meet specific ne…