Bernd Page

University of Hamburg | UHH · Department of Informatics

MeV-scale energy depositions by low-energy photons produced in neutrino-argon interactions have been identified and reconstructed in ArgoNeuT liquid argon time projection chamber (LArTPC) data. ArgoNeuT data collected on the NuMI beam at Fermilab were analyzed to select isolated low-energy depositions in the TPC volume. The total number, reconstruc...

We report on the first cross section measurement of charged-current single charged pion production by neutrinos and antineutrinos on argon. This analysis was performed using the ArgoNeuT detector exposed to the NuMI beam at Fermilab. The measurements are presented as functions of muon momentum, muon angle, pion angle, and angle between muon and pio...

The ArgoNeuT Collaboration reports the first measurement of neutral current π0 production in νμ-argon and ν¯μ-argon scattering. This measurement was performed using the ArgoNeuT liquid argon time projection chamber deployed at Fermilab’s NuMI neutrino beam with an exposure corresponding to 1.2×1020 protons-on-target from the Fermilab main injector...

Functional decomposition, also called functional parallelism, was an approach to introduce inner parallelism into discrete event simulators in the 1980s, in order to accelerate simulation experiments. Due to technical restrictions at that time, it did not gain widespread acceptance. This paper introduces modifications of the approach, considering t...

This document presents the Conceptual Design Report (CDR) put forward by an international neutrino community to pursue the Deep Underground Neutrino Experiment at the Long-Baseline Neutrino Facility (LBNF/DUNE), a groundbreaking science experiment for long-baseline neutrino oscillation studies and for neutrino astrophysics and nucleon decay searche...

The Physics Program for the Deep Underground Neutrino Experiment (DUNE) at the Fermilab Long-Baseline Neutrino Facility (LBNF) is described.

Pairs of discrete event time series are characterised by their asynchronous nature, often hampering direct application of otherwise common analysis methods. For correct application of scatter plots, pairs of discrete event time series first have to be pre-processed and merged into a new synthetic time series of so-called co-observations. While stan...

The transition of energy systems toward a higher share of renewable energy creates complex challenges in designing, implementing, controlling and maintaining the systems. Environmental assessments of system structures and the decisions made during design, implementation and operation are usually based on complex data, models and decision procedures...

In discrete event simulation experiments, state variables' values are recorded and further processed to explore the dynamics of the modelled system. This paper introduces a family of so-called Analysis by State methods for exploration of relationships between two discrete event simulation output time series. Here, state intervals of a primary time...

This paper describes a holistic approach to operation and maintenance (O&M) processes in the domain of offshore wind farm power generation. The acquisition and process visualization is followed by a risk analysis of all relevant processes. Hereafter, a tool was designed, which is able to model the defined processes in a BPMN 2.0 notation, as well a...

The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and...

We propose a conceptual procedure to integrate methods of specific application domains into general purpose discrete event simulation. This procedure is applied on quantitative finance, a field that deals with computer-assisted analysis of asset prices and supports investment decisions in financial markets. One of quantitative finance’s most signif...

This paper provides an overview over the technical development of a software suite, designed to visualize, connect and simulate relevant processes of the operation and maintenance of offshore wind farms and combine them with other relevant factors, such as for example stochastic weather generators and other wind farm proprietary aspects important t...

The interaction approach introduced in this paper is aiming at coupling a full-fledged discrete event simulator and an operational ERP system in a fully integrated manner. Here, the simulator is representing the complete operative environment of the ERP system, substituting its daily business input. For this, the company-specific utilisation of the...

The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and...

This review paper focusses on DESMO-J, a comprehensive and stable Java-based open-source simulation library. DESMO-J is recommended in numerous academic publications for implementing discrete event simulation models for various applications. The library was integrated into several commercial software products. DESMO-J’s functional range and usabili...

This paper provides an overview over the technical development of a software suite, designed to visualize, connect and simulate relevant processes of the operation and maintenance of offshore wind farms and combine them with other relevant factors, such as for example stochastic weather generators and other wind farm proprietary aspects important t...

Quantitative Finance is one of the numerous application fields of discrete event simulation. Because of special requirements in this area, typically domain specific simulation tools are applied, instead of general purpose simulators. It appears fruitful and beneficial to provide some of the risk metrics common in quantitative finance for discrete e...

With this applied research study, we are demonstrating how an open-source Java simulation framework can be extended beyond standard logistic studies as the main application domain so far to evaluate and test container terminal control systems. We are investigating whether implementing model components of container terminals in such a flexible way t...

This paper attempts to highlight shortcomings in the concept of sustainability and ways to make the concept more workable by presenting the development of an Environmental Management Information System (EMIS) as a combination of discrete event simulation and ecological material flow analysis for production processes. The motivation behind the focus...

Financial markets are highly complex adaptive systems. This paper deals with the application of simulators in software architectures for back-testing and automating financial market trading strategies. It characterizes traits and problems of algorithmic trading and describes the established use of simulators in back-testing and automated trading. A...

This goal of the paper is transport network optimization. Transport networks are defined as network topologies where entities are forwarded from node to node constrained by capacity restrictions both on nodes and links. Examples include urban traffic (vehicles/signalized intersections) and IP networks (packets/routers). Optimization of such network...

In the first section we provide a short review of the rather young field of Environmental Informatics. We argue that Environmental Informatics methods and tools are powerful means in environmental information processing for supporting environmental protection and sustainable development. In the second part we introduce an integrated approach for mo...

This paper outlines the application of a special Environmental Management Information System (EMIS) as combination of discrete event simulation with ecological material flow analysis for a selected production process. The software tool serves as decision aid for economic as well as ecological business problems. A combined view of the material flow...

The European Emission Trading System (ETS) has been elaborated as a market-based instrument for controlling greenhouse gas emissions. Selected sectors have to bring in Emission Allowances (EUA) for every emitted ton of CO2. A large part of EUAs is freely allocated to plant operators, but high emitters have to settle their lack of EUAs by buying EUA...

Model-driven software development (MDSD) is a current direction in software engineering that underlines the importance of models in contrast to program code. Since models have always been of central importance in simulation, some aspects of MDSD are especially helpful to support discrete event simulation (DES) studies. In this paper a case study co...

In this introductory article for the Environmental Informatics education workshop an overview of study pro-grams in Germany and rudimentary for some other European universities is presented. The focus is laid on de-gree programs with a significant fraction of informatics content as recommended by the German Computer So-ciety (GI-Gesellschaft für In...

Model-driven software development (MDSD) is a current direction in software engineering that underlines the importance of models in contrast to program code. Since models have always been of central importance in simulation, some aspects of MDSD are especially helpful to support discrete event simulation (DES) studies. In this paper a case study co...

This paper presents an introduction to DESMO-J, a comprehensive framework for implementing discrete event simulation models in Java. We describe the most important DESMO-J components. Key features include a clear separation of model development and experiment conduction and the support of both event-oriented and process-oriented model descriptions;...

In this paper we intend to show that the open-source simulation framework DESMO-J can be used not only for logistic investigations - as it was being used by many during the last years - but also for evaluating and testing control systems. Therefore we propose to implement model components of container terminals in such a way that they can be used i...

Material Flow Analysis is a method for determination of material and energy flows in companies for ecobalances and process optimization. Ecobalancing provides a basis for efficient utilization of material resources and energies and for reduction of environmental harmful emissions and waste. Reference models in material flow analysis (e.g. with Mate...

Material Flow Analysis is a method for determination of material and energy flows in companies for ecobalances and process optimization. Ecobalancing provides a basis for efficient utilization of material resources and energies and for reduction of environmental harmful emissions and waste. Reference models in material flow analysis (e.g. with Mate...

Simulation is a common planning technique in production industry, especially in the economic evaluation of different design alternatives for production processes. This is in particular important in the field of waver production because of the huge investments in the highly sophisticated production processes. Another important issue of waver product...

This Technical Design Report (TDR) describes the preliminary design of the NOνA accelerator upgrades, NOνA detectors, detector halls and detector sites. Compared to the March 2006 and November 2006 NOνA Conceptual Design Reports (CDR), critical value engineering studies have been completed and the alternatives still active in the CDR have been narr...

Dieser Beitrag beschreibt die Anwendung der Software Milan zur kombinierten ereignis-diskreten Simulation und Stoffstromanalyse am Beispiel der Halbleiterproduktion. Dabei werden sowohl konkrete Erfahrungen mit der Anwendung des Werkzeuges in Bezug auf die Modellierung dies Produktionstyps als auch die Probleme einer derartigen kombinierten Betrach...

While eco-balances and Material Flow Networks are common analysis tools of Environmental Management Information Systems (EMIS), discrete event simulation has not been used widely for this purpose. This paper argues in favour of combining discrete event simulation with material flow analysis to explore both the environmental and economic impact of b...

Computer-based systems for processing environmental information have been in use for more than three decades now. A broad range of applications is covered by these systems, including monitoring and control, information management, data analysis, as well as planning and decision support. Progress in informatics has made an invaluablecontribution to...

Summary The main readership are students in the field of informatics. In most parts, other interested scientists from environmental disciplines get some insights in the field of environmental modelling and software. The book can be recommended broadly. With the last chapter ‘Simulation in Practice’, this work may also be useful for commercial appli...

Modern society’s increased globalization and the growing scarcity and costs of resources require that companies deal effectively with their customers and suppliers. Efficient inventory management strategies, based on optimal ordering policies, play an important role in this process. While profitability is likely to remain the dominant goal, there a...

Due to the close relation between object-oriented modelling and the domain of discrete event simula- tion (DES) the Unified Modelling Language (UML) has in the past been frequently applied for simulation mod- elling. However, most of this work is restricted to particular application domains or diagram types and based on the UML 1.x versions that ha...

Though repeatedly pointed out in the literature, sim-ulation technology still suers from a lack of soft-ware tools that support the planning, execution, and analysis of large-scale experiments. The con-ceptual separation of models and experiments sug-gests the development of generic experimentation en-vironments whose functionality can be reused by...

This paper describes selected e-learning materials developed as part of a cooperative simulation- supported learning initiative for university courses on discrete event simulation. These materials include Java applets for teaching general simulation concepts, as well as a web tutorial and an Internet-hosted simulation laboratory that teaches how to...

Courier services form an important sector of urban freight traffic; leading to a daily volume of traffic that is problematic in economic and ecologic respects. New logistic concepts for reducing costs, distances and emis- sions could improve this situation by increased application of bicycle couriers and bundling of consignments. In this paper we s...

Most applications of Neural Networks are based on their high adaptivity to almost any set of given input-output relations ("patterns"). An example is pattern recognition: here, a usually complex input, e.g. a picture of a number, has to be mapped on a much simpler output, e.g. the binary representation of that number. Networks trained to reproduce...

This chapter outlines Material Flow Networks as a special modelling approach in the context of ecobalancing, that is, for modelling the environmental impacts of economic activities. This approach focuses on understanding the underlying material and energy transformations and the environmental impact of the resulting material and energy flows. The s...

Due to the close relation between object-oriented modelling and the domain of discrete event simulation (DES) the Unified Modelling Language (UML) has in the past been frequently applied for simulation modelling. However, most of this work is restricted to particular applications or diagram types and based on the UML 1.x versions that had some draw...

This chapter outlines Material Flow Networks as a special modelling approach in the context of ecobalancing, that is, for modelling the environmental impacts of economic activities. This approach focuses on understanding the underlying material and energy transformations and the environmental impact of the resulting material and energy flows. The s...

In this paper a new approach is described that integrates discrete event simulation techniques with material flow analysis using a component-based framework based on Microsoft’s COM-Technology. Therefore, we developed a framework architecture that offers basic functions for performing discrete event simulation in combination with material flow anal...

The topic of environmental protection has always been of great concern in Germany, the establishment of environmental data sources started in the 1970s. The development of environmental information system technology in Germany is outlined and two examples are given: the Environmental Planning and Information System (UMPLIS) and the Integrated Publi...

This paper describes an approach how an Industrial Environmental Information System (IEIS) can be combined with adiscret event simulation model. The simulation model was built up using software components for storage systems which were developed in our working group. In addition we equipped our model with a COM-interface consisting of a run method,...

The system presented bridges the gap between three different research areas: discrete event simulation, heuristic optimization methods and distributed systems technology. Its goal is to provide a framework which supports an efficient implementation of simulation optimization projects, including heuristic optimum seeking procedures and parallel exec...

The protection of our environment remains one of the greatest challenges in industrialized societies. This challenge is addressing politics, economy as well as technology and research. It is clear that the various problems in environmental protection, environmental planning, research and engineering can be only solved on the ground of a comprehensi...

Material Flow Networks provide a wide range of options for describing and representing complex material flow systems and evaluating them efficiently for environmental management. Thus, many of the properties and much more of the scope resulting from the Material Flow Network approach can be used to gain a better insight into production,consumption,...

This chapter describes the foundations of Material Flow Networks for environmental management and gives an overview about their application fields. Material Flow Networks describe the flow of materials and energy within a defined system. The representation and evaluation of these material flows - especially when these flows have an impact on our en...

In the context of non-linear dynamics, next neighbor prediction methods have been successfully applied to univariate time series. We generalize these methods, in particular, center-of-mass-prediction (COM-prediction) and local linear prediction (LL-prediction), to multivariate time series. The use of multivariate prediction techniques is especially...

Dieser Beitrag beschreibt einen Ansatz zur Kopplung von Optimierungsmodellen mit Modellen zur Stoff- und Energiebilanzierung. Konkret geschieht dies am Beispiel der Einbettung eines Tourenplanungsmodells in ein Stoffstromnetz. Beschrieben werden geeignete Formulierungen für das Optimierungsmodell und den zugehörigen Lösungsalgorithmen, ein Anknüpfu...

Compartment models are a popular environmental problem solving technique. One area to which they are often applied is the estimation of flows and residues of chemical substances in soil, air and water (so called Exposure Assessment of Chemicals). After a brief introduction to this problem some important requirements for simulation tools are present...

Introduction: Idiopathic spontaneous pneumothorax is a frequent disorder with a poorly codified treatment. Methods: We retrospectively studied 48 patients with an idiopathic pneumothorax hospitalized between 1993 and 1997, and we discuss the location and time of surgical treatment. We compare the outcome of patients treated by chest tube (24 F), an...

In a context such as acute respiratory distress syndrome, where optimum tidal volume and airway pressure levels are debated, the present study was designed to differentiate the right ventricular (RV) consequences of increasing lung volume from those secondary to increasing airway pressure during tidal ventilation. The study was conducted by combine...

Connecting databases to the internet makes their contents widely available. Environmental data can also be reached, and there are many data collections accessible in this area. So it is easy to get confused about where to find and how to interpret relevant data. This paper describes the development of a user interface for heterogenous, distributed...

Umweltdaten beschreiben charakteristischerweise sehr verschiedenartige Zustände und Vorgänge in ökologischen Systemen. Oft werden Daten in wissenschaftlichen Projekten mit großem finanziellen und zeitlichen Aufwand erhoben. Sie stehen im allgemeinen jedoch zunächst nur den Projektbeteiligten zur Verfügung. Wün-schenswert wäre eine weltweite Nutzbar...