Grundlagen und Methoden zur Erhebung einer Unternehmenskultur (German Edition)

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Track C: Evaluating Knowledge. Paper presented at the 4. Bauer, U. Plattform Wissensmanagement www. A System Dynamics Crash Course. Die lernende Organisation. Paper presented at the Managing Information , 18 10 , Wissensmanagement , 11 4 , Wissensmanagement , 11 5 , Wider besseres Wissen. Die Mitbestimmung , 8 , Controlling Stichwort: Strategie und strategisches Controlling. Controller News , 5 , Lernen durch Controlling. Controller News , 4 , Der Wirtschaftsingenieur , 2 , Controlling Stichwort: Die Lernende Organisation.

Schatz Eds. Rapperswil: InnoVatio Publishing. Marxt, S. Stuttgart: Ibidem. Auflage, In pp. Wissenschaftliche Hochschule Lahr GmbH. Wissensmanagement in Nonprofit-Organisationen. Badelt, M. Simsa Eds. In Plattform Wissensmanagement Ed. Aber wie? Horak Eds. Wissensmanagement in Nonprofit Organisationen. Badelt Ed. Eschenbach Eds. Geburtstages von Prof. Johann Risak. Eckardstein, H.

Mayrhofer Eds. Zur Bedeutung von Wissen. Ziel und Inhalt. Eschenbach Ed. Engpass Wissen: Antworten auf die Management Herausforderung des Paper presented at the i-know, Graz, Austria. Lern- und Wissensmanagement. Wissensmanagement als Basis einer innovativen Lernkultur in Organisationen. Paper presented at the 1. Learntec Forum Austria, Vienna, Austria. Leadership in 21st Century. Empathic Design: Human Factors Engineer. Building Learning Organizations in the Knowledge Age. Strategie, Lernen und Handeln.

Ergebnisse des Arbeitskreises Controlling. Unternehmen oder untergraben? Volksblatt Wirtschaft , p. Pfeiffer, K. Wissensgesellschaft: Sie wissen, was andere nicht wissen. Der Monat. Wenn der gute Ruf leidet. Kundenwissen nutzen. Innovation durch Kundenwissen. Liechtensteiner Vaterland Inland , p. Die "Zukunft" tagt in Liechtenstein.

Mattivi, J. Wissen als Unternehmensfaktor. Erneuern oder sterben. Der Standard , p. Seite K Wissen bringt Wohlstand. Volksbatt , p. Seite Liechtensteiner Vaterland , p. Meier, G. New Club of Paris: Wissen in Bilanzen darstellen. Galler Tagblatt , p. Niznik, Iga. Staff: Dr. Vera Hennefeld , M. Project Manager: Prof.

Reinhard Stockmann. The general purpose of this online survey is the assessment of IMMOEBS and its activities by its members as well as the identification of potentials for development and adaptation requirements. CEval follows a "mixed methods" approach with regard to data collection. As a result, existing documents and data derived from a quantitative paper-pencil-survey, qualitative semi-structured interviews and group discussions are analysed in detail. Thus, the intercultural platforms target both the transfer of information as well as cross-cultural awareness and Exchange.

The evaluation study will examine whether the objectives of the country web portals have been achieved and the intended target groups have been reached. In addition, the analysis includes the question on how effectively these web portals have enabled information transfer and promoted intercultural exchange.

Also, the evaluation will provide specific conclusions and recommendations derived from the collected information in order to further develop the concept or the country Portals. As a result, existing documents and data derived from an online survey of the GI are analysed in detail. Additional surveys will also be conducted qualitative guideline based interviews. Therefore, questions about overall satisfaction with offered courses and the quality as well as the professional and personal benefits of mentoring activities for both mentees and mentors are of particular interest.

Evaluation concepts of previous years have proven efficient. Methodologically, the evaluation process is based on standardised online questionnaires, which mentees and mentors complete at three different stages of the programme, the aim being to identify potential difficulties and appropriate solutions sufficiently early in the process.

The task of the evaluation assigned by the Cusanuswerk is to assess the predictive validity of this new method. Here, the former previous selection process and the new method will be compared by questioning the participants of both processes using standardized online survey and analyzing existing data and documents. Goal of the summative ex-post evaluation was to analyze and assess the short- and medium-term outcomes of the training workshops. For data acquisition, CEval GmbH followed a mixed-method approach combining in-depth stakeholder interviews, document as well as secondary analysis of module evaluation surveys.

Additionally a standardized online survey in Russian of all workshop participants was carried out. Goal of the summative ex-post evaluation was to verify and analyze the outcome of the project activities and the quality of the project management. Auf der theoretischen Ebene war im Hinblick auf den Evaluationsgegenstand vor allem das organisationstheoretische Wirkungsmodell von besonderem Interesse. Aus methodischer Sicht kamen ein Multimethodenansatz sowie der partizipative Evaluationsansatz des CEval zur Anwendung.

Im Rahmen der Konferenz werden etwa 20 ReferentInnen aktiv zur Programmgestaltung beitragen und es werden ca. Zum anderen soll eine Erhebung der Zufriedenheit der Konferenzteilnehmer u. Hierzu werden alle BesucherInnen und ReferentInnen mittels eines standardisierten Fragebogens befragt. Zudem sollen Hinweise zur Wirksamkeit und der zu erwartenden Nachhaltigkeit des Programms abgeleitet werden.

Als Instrumente wurden in beiden Sonderprogrammen sog. Methodisch basierte die Evaluation auf Dokumentenanalysen, standardisierten Befragungen aller ehemaliger Stipendiaten und Stipendiatinnen sowie Leitfadeninterviews mit den Verantwortlichen in Berlin und in Los Angeles und den derzeit in der Villa anwesenden Stipendiaten.

Neben den konkreten schulischen Kompetenzen sollten auf diese Weise auch soziale bzw. Vera Hennefeld , Dr. Die Evaluationsergebnisse wurden nicht nur in Form einzelner Fallstudien sondern auch vergleichend in einem zusammenfassenden Synoptischen Summary dokumentiert. In Zukunft soll das Hochschulmarketing des DAAD einen Schwerpunkt bei indischen Studierenden der Ingenieur-, Natur- und Wirtschaftswissenschaften setzen, da bei diesen Gruppen Nachwuchsmangel bereits besteht oder zu erwarten ist und von ihnen ein positiver Beitrag zur Forschung an deutschen Hochschulen erhofft wird.

Zum anderen kommen die meisten amerikanischen Studierenden nur zu sehr kurzen Studienaufenthalten nach Deutschland, so dass eine nachhaltige Wirkung des Aufenthalts fraglich ist. Faktoren Einfluss genommen werden, die die Entscheidung der Zielgruppe zu einem Auslandsstudium determinieren? Die vom CEval ausgesprochenen Empfehlungen betreffen u. Zum anderen lieferten die gewonnenen Informationen auch Hinweise dazu, wie im Allgemeinen eine Intensivierung der Hochschulkooperationen zwischen Deutschland und Japan erreicht werden kann.

Eine standardisierte Befragung der deutschen Partnerschaftsbeauftragten beantwortete u. Wolfgang Meyer , Dr. Vera Hennefeld. Im Auftrag von Herrn Prof. Vera Hennefeld Associate Professor Dr. Sandra Schopper, M. Felix Stips, M. Sarah Tschanun, M. Laszlo Szentmarjay, M. Student assistants Working with us Downloads. Curriculum Vitae Publications Projects.

Professional Career Since Bonn: DAAD. Eine Bestandsaufnahme. Hennefeld, Vera; Stockmann, Reinhard; Hg.


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Glogner-Pilz, P. Forschungsfragen und -befunde. Wiesbaden: Springer VS, S. Essen: Klartext, S. Hennefeld, W. Meyer, S. Silvestrini Hrsg.

Grundlagen Und Methoden Zur Erhebung Einer Unternehmenskultur (German Edition)

Auftragsforschung zwischen Praxis und Wissenschaft. Festschrift zum Geburtstag von Reinhard Stockmann. Kerlen; P. Maats; O. Schwab; S. Berlin: Lit, S. Hennefeld, Vera Reporting. In: Stockmann, Reinhard ed. Cheltenham: Edward Elgar. Hennefeld, Vera; Meiers, Ralph Reporting. In: Stockmann, Reinhard Ed. Hennefeld, Vera; Metje, Ute M. Hennefeld, Vera Das Umweltverhalten von Handwerksbetrieben.

Warum, was, wann und wie? In: K. Ermert Hg. Schneider, Vera Reporting. In: Stockmann, Reinhard Hg. Eine praktische Handlungsanleitung. Stockmann Hrsg. Loock, F. Berlin: Raabe. Schneider, Vera Was versteht man unter arm? Evaluationsbericht im Auftrag des Goethe-Instituts. Hennefeld, Vera Evaluation des Mediendialogs mit der Ukraine. Baden-Baden: Nomos. Hennefeld, Vera [Top]. Vera Hennefeld Contact Person: Dr. Vera Hennefeld Description The program 'Securing talents - shaping the future' by the Cusanuswerk aims to support future female leaders.

The program focuses on mentoring elements that is tutorial support for scholarship holders by professionally experienced academics. It also focuses on occupationally specific training and support measures as well as on building a peer-network.

Professional Career

The CEval has been conducting accompanying external evaluations to ensure quality management since the start of the career support program in The main task of this evaluation is to provide the responsible employees with management-related information. In this context, questions regarding satisfaction with the offered events, quality of tutorial relationships as well as questions regarding professional and personal use of the relationships for both sides are especially relevant. In regards to methods, the evaluation covers standardized questionnaires of mentees and mentors compared at three points in time.

Vera Hennefeld Staff: M. The funding aims at contributing to an improved integration of refugees in Germany. The goal of the evaluation is to assess the goal achievement, efficacy and efficiency of the funded projects and to develop recommendations for future funding of such projects.

At the same time the evaluation shall support the projects in setting up and implementing a results-based monitoring system. The evaluation is designed as an accompanying evaluation with formative and summative elements. It also involves a capacity building component. In terms of methodology, the evaluation will rely on a mix of qualitative and quantitative data collection and analysis methods. Among others, a document review, guided interviews, focus group discussions as well as an online survey are planned. To that end, the foundation cooperates with national football associations and in has released funds for two pilot projects, one with the French Football Federation FFF and one with the German Football Association DFB.

In this way, conflicts would be dealt with after match days and solutions for future events could be developed. The tasks of the CEval GmbH range from the conception of the project follow-up process, selection of pilot locations, etc. Therefore, different procedures and formats for the match day follow-ups will be tested, in order to present an applicable concept after the pilot phase. All steps are carried out in close cooperation with the DFB project team.

The project is scheduled to run from January to May In the first half of , a detailed project conception and elaboration will take place, including workshops with all participating actors. Central partners are the Fan Projects of the respective locations. Subsequently will be evaluation and, if necessary, an adaptation of the concept for match day follow-up as well as the documentation of the project as a final report. The programme aims at contributing to the internationalization of DLR institutes as well as promoting researchers who maintain a relation to Germany as partners and friends.

The goal of the evaluation is twofold. At the Flumenthal substation a second transformer of the same type was installed. Before commissioning, the transfer functions of both transformers have been measured. These measurements provide essential information concerning the comparability of measurements from different transformers and are the basis for measurements to be carried out in the future. Dabei wurde die Analyse der Uebertragungsfunktion des Transformators als zusaetzliche Methode zur Beurteilung der Stosskurzschlusspruefung untersucht.

Der Aktivteil wurde danach im Herstellerwerk begutachtet.

Professional Career

Dabei ergaben sich keine Beanstandungen. Im Umspannwerk Flumenthal wurde ein zweiter baugleicher Transformator installiert. Vor der Inbetriebnahme wurden zusaetzliche Vergleichsmessungen an den zwei baugleichen Transformatoren durchgefuehrt. Validation of analysis methods to simulate national and international impact experiments. Within the framework of project RS on ''Validierung von Analysemethoden zur Simulation von Aufprallversuchen im In- und Ausland'' the examination of different mechanical phenomena which might occur during the impact of deformable, rigid or liquid-filled missiles on robust structures was carried out.

The safety-related significance of the work lies in the evaluation of the accuracy of analysis methods employed for the assessment of the load-bearing capacity of building structures subjected to intentional external hazards. Key subject of the tasks was the examination of impact tests with reinforced concrete target structures, including intermediate-scaled tests carried out at VTT as well as almost full-scaled tests carried out in Meppen and at SNL.

Besides the behaviour of the missiles especially the description of the damage processes of the reinforced concrete structures constituted a priority. The relevant damage mechanisms include global bending and crack formation, local concrete scabbing and spalling, punching, penetration of missile and perforation. Furthermore, effects of liquid infill of missiles on the load-time-function and structural damage were investigated.

By means of bilateral co-operations with organisations at home and abroad test results were exchanged. For the characterisation of impact loaded concrete the RHT-model was comprehensively tested. Basically, the simulation of the behaviour of reinforced concrete structures under impact loading exhibits dependencies on physical and numerical modelling parameters, which could also be concluded from the.

Materials model for describing the austenite-martensite phase transformation considering transformation-induced plasticity; Ein Materialmodell zur Beschreibung der Austenit-Martensit Phasentransformation unter Beruecksichtigung der transformationsinduzierten Plastizitaet. In this thesis, a model to describe the austenite martensite transformation was developed. The transformation induced plasticity TRIP was taken into consideration.

The model can be used to design complex structures. A local examination of the energy and entropy balance at the phase boundary serves as the starting point for the identification of the thermodynamical driving force and the thermodynamic flow. For both, a tensorial description is necessary for a general nonhydrostatically stressed solid. In the second part, a material law for the description of TRIP-Steels was developed based on the values derived in the first part. The different mechanical behavior of the phases, especially the differing yield stresses, was taken into account. The model developed was implemented into the finite element program MARC.

Simulations of the material and the structural behavior were performed. The experimentally observed strong dependence of the transformation kinetics on the yield stress of the austenite and the dependence of the orientation of the martensite inclusion on the stress state could be verified. Das Modell ist zur Berechnung ausgedehnter Strukturen einsetzbar. Eine lokale Betrachtung der Energie- und Entropiebilanz an der Phasengrenze bildet den Ausgangspunkt zur Identifikation der thermodynamischen Kraft und des thermodynamischen Flusses bei Beschreibung der Transformationskinetik.

Fuer beide Groessen muss fuer den allgemein nichthydrostatischen Spannungszustand eine tensorielle Beschreibung verwendet werden. Es wird das unterschiedliche mechanische Verhalten der Phasen, insbesondere die stark unterschiedlichen. Final report; 2D-FE-Verfahren fuer die Kennfeldberechnung von vielstufigen Turbinen mit unter- und ueberkritischen Stufendruckverhaeltnissen mit variabler Kuehlluftzufuhr. Abschlussbericht zum Vorhaben 1. Um dieser Aufgabe bei der Auslegung des Turbinenteils einer Gasturbine gerecht zu werden, muessen die Verfahren sowohl alle wesentlichen stroemungsmechanischen Einfluesse als auch die Einfluesse moderner Systeme zur Bauteilkuehlung beruecksichtigen.

Die vorliegende Arbeit befasst sich mit der Modellierung von Sekundaerstroemungseinfluessen, radialen Transportprozessen und Kuehlungseinfluessen in einem auf der Methode der Finiten-Elemente basierenden Meridianstroemungsverfahren. Zur Beruecksichtigung der Einfluesse komplexer Kuehlungssysteme koennen beliebige Konfigurationen von konvektiver Kuehlung, Ausblasung an den Schaufelhinterkanten, Filmkuehlung sowie Ausblasung an Nabe und Gehaeuse vorgegeben werden.

Der Mischungsprozess zwischen Hauptmassenstrom und Kuehlluft wird mit Hilfe vereinfachter Bilanzgleichungen berechnet. Massenstromaenderungen werden entweder durch Aenderung der Definitionsgleichungen der Stromfunktion oder im Fall von Ausblasungen in den Randzonen durch geaenderte Randbedingungen an den Seitenwaenden beruecksichtigt. Um bei einem vorgegebenen Druckverhaeltnis den Massenstrom berechnen zu koennen, wird eine Druckregelung implementiert. Die Druckregelung passt den Massenstrom waehrend der Berechnung an das geforderte Druckverhaeltnis an. Die Kontinuitaetsgleichung ist zu jedem Zeitpunkt der Berechnung erfuellt, wodurch die Rechnung beschleunigt wird.

Zur Ueberpruefung des Verfahrens wird eine 1,5-stufige Versuchsturbine mit lokaler Kuehlgasausblasung vor der Beschaufelung sowie der Turbinenteil der Hochtemperatur-Gasturbine V Die Hochtemperatur-Gasturbine wird durch eine Kombination von Konvektionskuehlung und Hinterkantenausblasung gekuehlt. Die berechneten Stroemungsgroessen zeigen fuer beide Maschinen eine gute Uebereinstimmung mit experimentellen Daten bzw.

Software testing and source code for the calculation of clearance values. The GRS research project was aimed to the test the appropriateness of the software package ''residual radioactivity'' RESRAD for the calculation of clearance values according to German and European regulations.

Calculation of composite-fibre flywheels with electric power converters for energy storage purposes. Zur Berechnung von Schwungradenergiespeichern aus Faserverbundwerkstoff mit elektrischem Energiewandler. The dissertation discusses the calculation and design of flywheel energy storage systems with electromechanical power converters and composite-fibre flywheels. For this purpose, the main load criteria for centrifugal and pressure loads on flywheel rings of unidirectional laminates are determined, and criteria are given for the dimensioning of flywheel rings.

The fast rotational speed of the flywheel dominates the design of the driving motor. As an example, the calculation of a permanent-magnet-excited external rotor motor is described. Special consideration is given to the close correlation between stator current density and ampere bars per cm, and rotor strength.

The findings are illustrated by design examples, by an example from the field of vehicle construction, and by experimental studies on composite-fibre flywheels and a driving motor with a high rotational speed. Seismic methods for the characterisation of reservoirs in developing old natural gas fields in Germany; 3D Seismische Verfahren zur Reservoircharakterisierung bei der Entwicklung alter Erdoelfelder in Deutschland.

Krajewski, P. Two examples are chosen to describe the possiblities and limitations of using 3D seismic data for the interpretation of structures and the seismic characterisation of reservoirs. New techniques of seismic classification offer a great deal of possibilities, especially if - as in the case of Ruehme - there is a sufficiency of data from many borehole locations which enables the training of algorithms. Neuartige Techniken der seismischen Klassifizierung erweitern die Moeglichkeiten dabei betraechtlich, insbesondere, wenn - wie beim Beispiel Ruehme - durch die vielen Bohrlokationen ausreichend Daten zum Trainieren der Algorithmen zur Verfuegung stehen.

Techniques for quantification of liver fat in risk stratification of diabetics; Techniken zur Leberfettquantifizierung bei der Risikostratifikation von Diabetikern. Kuehn, J. Fatty liver disease plays an important role in the development of type 2 diabetes. Accurate techniques for detection and quantification of liver fat are essential for clinical diagnostics. Chemical shift-encoded magnetic resonance imaging MRI is a simple approach to quantify liver fat content.

The confounder corrected proton density fat fraction is a simple approach to quantify liver fat with comparable results independent of the software and hardware used. The proton density fat fraction is an accurate biomarker for assessment of liver fat. An accurate and reproducible quantification of liver fat using chemical shift-encoded MRI requires a calculation of the proton density fat fraction. Zur Detektion und Quantifizierung des Leberfetts werden in der klinischen Diagnostik akkurate Verfahren gebraucht.

Eine Korrektur aller Stoervariablen wird als Proton-density-Fettfraktion bezeichnet. Diese liefert unabhaengig von der verwendeten Einstellung und Hardware reproduzierbare Ergebnisse. Die korrigierte Proton-density-Fettfraktion ist ein akkurater Biomarker zur Quantifizierung von Leberfett.

Calculations of an unsteady flow through a hydraulic axial turbine with reference to interaction between stator and rotor; Instationaere Berechnung einer hydraulischen Axialturbine unter Beruecksichtigung der Interaktion zwischen Leit- und Laufrad. The objective of this study is the development of an algorithm enabling coupling of nonmatching computational grids to carry out calculations of an unsteady flow through a hydraulic axial turbine with reference to interaction between stator and rotor.

The algorithm should offer the possibility to operate the computational grids in a fixed position relative to each other as well as in relative movement. Furthermore, the calculation should be feasible with separate grids in parallel and different frames of reference. Employing selected examples this method is investigated in detail the results are compared with performed measurements. The unsteady numerical examination of the coupling process is carried out with different examples; especially the interaction effects between stator, rotor and draft tube of a hydraulic axial turbine are observed.

In addition, the effect of tip clearance of the mean flow is described. Flow time dependent velocities have been measured with a Laser Doppler Velocimeter placed at midspan of the blading. Periodical changes in static pressure have been recorded at different locations near the wall of the turbine casing. These measurements serve as reference for the comparison with results derived from the unsteady calculations.

The confrontation of the time-dependent fluctuations of the flow quantities and the calculation of the efficiency of the turbine resulting from the simulation results allow a comparison in absolute terms. Diese Berechnungsnetze sollen zueinander ortsfest sein oder auch eine Relativbewegung zueinander haben koennen. Sie sollen ausserdem und in unterschiedlichen. Development of a fluidized-bed method for on-line evaluation of radiotracers in vitro; Entwicklung einer Fliessbettechnik zur Bewertung von Radiopharmaka an Zellkulturen. This study presents the development of a continuously operating fluidized-bed bioreactor for on-line evaluation of radiotracers in vitro, which combines tissue-like three-dimensional cell cultivation in open porous microcarriers with a technique for on-line radioactivity detection.

The long time stability of steady-state permits a large number of experiments using the same culture. The flux of the circulating medium can be adapted to the blood flow of the corresponding organism, while the input function of the radiotracer is freely adjustable for simulation of in vivo conditions.

Sampling and examination of the immobilized cells care possible at any time. For normoglycemic concentrations the LC was determined to be in the range of 0. The rate constants in the three compartment model were found to be similar to those obtained in vivo using PET; indicating the validity of the system for tracer evaluation.

The trans-form was transported three times faster than the cis-diastereomere, indicated by the rate constants. Der Bioreaktor kombiniert eine gewebeaehnliche, dreidimensionale Zellkultivierung in. Development of new methods for the modeling of technical systems and result evaluation for reactor safety simulation codes. Modeling, simulation models; Entwicklung neuer Methoden zur Modellierung technischer Systeme und zur Ergebnisauswertung fuer Simulationsprogramme der Reaktorsicherheit. Modellierung, Simulationsprogramme.

The overall objective of the project is to develop a general simulation environment for program systems used in reactor safety analysis. The simulation environment provides methods for graphical modeling and evaluation of results for the simulation models. The terms of graphical modeling and evaluation of results summarize computerized methods of pre- and postprocessing for the simulation models, which can assist the user in the execution of the simulation steps.

The methods comprise CAD ''Computer Aided Design'' based input tools, interactive user interfaces for the execution of the simulation and the graphical representation and visualization of the simulation results. A CAD tool was developed that allows the specification of 3D geometry of the plant components and the discretization with a simulation grid. The system provides inter-faces to generate the input data of the codes and to export the data for the visualization software. For the modeling of complex systems with many components, a general purpose graphical network editor was adapted and expanded.

The editor is able to simulate networks with complex topology graphically by suitable building blocks. The network editor has been enhanced and adapted to the modeling of balance of plant and thermal fluid systems in ATHLET. For the visual display of the simulation results in the local context of the 3D geometry and the simulation grid, the open source program ParaView is applied, which is widely used for 3D visualization of field data, offering multiple options for displaying and ana-lyzing the data.

New methods were developed, that allow the necessary conversion of the results of the reactor safety codes and the data of the CAD models. The trans-formed data may then be imported into ParaView and visualized.

Dr. Vera Hennefeld

New analytical method for fast nuclide identification in mobile in-situ gamma spectrometers; Neue analytische Methode zur schnellen Nuklididentifikation in mobilen in-situ Gammaspektrometern. Streil, T. Demolition and accidents of nuclear reactors or terroristic attacks may lead to large-area contamination with radionuclides. A suitable mobile measurement equipment should allow a quick overview about the extent of contamination. Recent methods apply for nuclide identification either time-consuming peak-fitting methods inclusive background correction or the so-called trapezoid method determining so-called regions of interest ROI.

Since the nuclide vector is often known, this information can be used as a starting point for the nuclide identification. The presented method uses dynamic smoothing of the registered energy spectrum in accordance with the detector resolution.

Prof. Dr. Stefan Güldenberg — University of Liechtenstein

In this way, noise is effectively suppressed without substantial degradation of the detector resolution. The statistically prepared spectrum is then two-fold differentiated. This provides the peak positions and the two turning points of the found peaks. Nuclide identification is possible using the peak positions, and with the peak and turning point positions and the corresponding values of the spectrum, on may calculate the area of an assumed Gausz distribution without considering the in any case present continuous background.

Combined with adapted calibration methods , the algorithm for nuclide identification implemented in the NucScout is also applicable for other geometries, e. A simple method of digitizing analog scintigrams for quantification and digital archiving. Eine einfache Methode der Digitalisierung von Analogszintigrammen zur Quantifizierung und digitalen Archivierung.

Schramm, M. Klinik fuer Nuklearmedizin, Kiel Univ. Germany ; Kaempfer, B. Germany ; Wolf, H. Germany ; Clausen, M. Germany ; Wendhausen, H. Germany ; Henze, E. This study was undertaken to evaluate a quick, reliable and cheap method of digitizing analog scintigrams. The analog scans on X-ray film were then digitized seecondarily by three different methods : dpi flatbed scanning, high-resolution camera scanning and camcorder recording.

A simple exposure approach using a light box, a cheap camcorder, a PC and image grabber hard- and software proved to be optimal. Visual interpretation showed no differences in clinical findings when comparing the analog images with their secondarily digitized counterparts. To test the possibility of quantification, equivalent ROIs were drawn both in the genuine digital and the secondarily digitized images. The evaluation of phantom studies showed the linear correlation to be true within a wide activity range. Thus, secondary digitalization of analog scintigrams is an easy, cheap and reliable method of archiving images and allows secondary digital quantification.

An inverse method for the design of energy absorbers in the frontend of passenger cars; Eine inverse Methode zur Auslegung von Energieabsorbern im Frontend von Personenkraftwagen. Mobility is one of the key factors of our society. The consequences for the environment and mankind can be seen every day. For example in , about 35, people involved in traffic accidents in Europe died. The ambitious objective of the European Union, the reduction of the total number of road casualties in , to 27, which is half of the road casualties in , was not obtained.

The enormous number of fatalities shows, that road safety will be an important issue in the future.


  1. Programm - h15 - tekom;
  2. Managing sustainability communication on campus: experiences from Lüneburg;
  3. Das Verhältnis von Realität und Fiktion in Isabel Allendes Roman Von Liebe und Schatten (German Edition).
  4. Dr. Vera Hennefeld.
  5. M.A. in Responsible Management – Lecturers.
  6. The automotive industry has to assure that the vehicle structures are able to reduce the severity of injuries not only for vehicle occupants but also for the other people who are involved in an accident. This can be reached with active and passive safety systems. In this work an alternative design process for passive safety structures is introduced, which is based on the vehicle requirements. The so-called inverse design method is demonstrated for the design of energy absorbers in frontend systems used for pedestrian protection.

    It is based on a multi-stage optimization process. Compared to the classic design process, where the crash-pulse is usually based on vehicle stiffness and the deformation length, the inverse method focuses on the structural design based on a desired crash-pulse. Using virtual absorbers, which are not limited by any material behavior or geometry, legform to bumper testes can be simulated.

    Thus, the desired legform deceleration can be generated. The data obtained is used for the second step of the inverse design method , the generation of a ''real'' absorber. For the design of the ''real'' absorber small drop-tower simulations are sufficient. A parameterized finite element model is used. Both the. Es wurde eine prototypische Visualisierung der entstehenden Streustrahlung sowie die Darstellung des Nutzstrahlenganges integriert. Dental magnetic resonance tomography dental-MRT as a method for imaging of the maxillo-mandibular bone; Dentale Magnetresonanztomographie Dental-MRT als Verfahren zur Darstellung des maxillomandibulaeren Zahnhalteapparates.

    Gahleitner, A. Purpose: To establish a new method for dental imaging using magnetic resonance tomography named Dental-MRT and to demonstrate its usefulness in diagnosing dentogen pathologies of the mandible and maxilla. Methods : Seven healthy volunteers, three patients with pulpitis, two patients with dentigerous cysts, two patients after tooth transplantation, and three patients with atrophic mandibles have been evaluated. The acquired images were reconstructed with a standard dental software package on a workstation as panorama and cross-sectional views of the mandible or maxilla. Results: The entire maxillo-mandibular bone, teeth, dental pulp, and the content of the mandibular canal were well depicted.

    Patients with pulpitis demonstrate bone marrow edema in the periapical region. Dentigerous cysts and their relation to the surrounding structures are clearly shown. After contrast media administration marked enhancement of the dental pulp can be demonstrated. Conclusion: Dental-MRT promises to provide a new tool for visualization and detection of dental diseases. Methoden: 7 gesunde Probanden, drei Patienten mit Pulpitis, zwei Patienten mit odontogenen Zysten, zwei Patienten nach Zahntransplantationen und drei Patienten mit atrophem Unterkiefer wurden untersucht.

    Unternehmenskultur Hatch

    Nach der Untersuchung wurden Panoramaschnitte und dentale Rekonstruktionen des Ober- und Unterkiefers, unter Verwendung einer gebraeuchlichen Dental-Software, angefertigt. A method for the solution of arbitrary bosonic and fermionic many-particle systems; Eine Methode zur Loesung beliebiger bosonischer und fermionischer Vielteilchensysteme. In the present dissertation different classes of quantum mechanical many body systems are investigated numerically and analytically considering symmetries in the formalism of second quantization. All algebraic ideas which are neccessary to develop a numerical computer code which is able to calculate the eigenvalues and eigenstates of a very general quantum many body hamiltonian are explained.

    The two most crucial problems are branching rules and the calculation of isoscalar factors. Methods are presented to solve these problems numerically for the general case. The most important point is the calculation of isoscalar factors with a nonrecursive method and without any numerical error. All presented ideas were implemented in the program '' ArbModel''. With this very flexible computer code at hand, systems of identical particles were investigated in general. General formulas were derived for the presence of dynamical symmetry. Weaker conditions are neccessary for the conservation of the so called seniority quantum number.

    This situation is called partial dynamical symmetry. These conditions were investigated in detail. Althouth other authors have previously investigated this problem, some new cases were discovered and new conditions could be derived. Most surprisingly, cases were found in which the seniority quantum number is generally broken except for some specific states.

    These states are solvable and formulae for their energies are presented. All analytically derived results were checked with ''ArbModel''. As further applications for the code, two selected models with distinguishable particles are investigated. The predictions of a very new theory, which connects quantum phase transitions and exceptional points, are verified with the sd-Interacting-Boson-Model 1 sd-IBM1 and a very high particle number. For the Interacting-Boson-Fermion-Model a selected dynamical symmetry was investigated. The branching rules for this Bose. Kurzskala zur Erfassung der Unternehmenskultur.

    Neuer Beitrag zur Kenntnis aussereuropaeischer Trichopteren. Herr Dr. Hilpert, W.


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    Further development of microparticle image velocimetry analysis for characterisation of gas streams as a novel method of fuel cell development. Final report; Weiterentwicklung des Mikro-Particle Image Velocimetry Analyseverfahrens zur Charakterisierung von Gasstroemungen als neuartige Entwicklungsmethodik fuer Brennstoffzellen. The project aimed at a better understanding of the complex fluid-mechanical processes in the small ducts of bipolar plates. So far, an appropriate technology for in-situ measurement was lacking.

    The project therefore focused on the further development of microparticle image velocimetry in order to enable analyses of the local velocity distribution of a gas stream in a microduct. Further, measurements were carried out in the microducts of a fuel cell in the more difficult conditions of actual operation.

    Bisher stand keine Messtechnik zur Verfuegung, dies es erlaubt, die stroemungsmechanischen Prozesse in den Mikrokanaelen unter Realbedingungen in situ zu vermessen und mit der instantanen Zellleistung zu korrelieren, Ziel des Projektes war es daher, die Methode der Mikro-Partikel-Image-Velocimetry in der Art weiterzuentwickeln, dass eine Analyse der lokalen Geschwindigkeitsverteilung einer Gasstroemung in einem Mikrokanal ermoeglicht wird. Darueber hinaus wird als zweites Ziel des Projekts eine solche Messung unter den erschwerten Bedingungen einer betriebenen Brennstoffzelle in Mikrokanaelen einer Zelle durchgefuehrt.

    Improved model for the calculation of the energy demand for the energetic evaluation of non-residential buildings; Verbessertes Modell zur Berechnung des Energiebedarfs zur energetischen Bewertung von Nichtwohngebaeuden. With its more than pages it is very voluminous and complex. Due to the complex subject of DIN V , discrepancies causing considerable differences in the overall result are possible. A further weak point in the current procedure for energetic evaluation is the composition of individual zones within the considered buildings and the subsequent effort for acquisition and determination of values needed during computation.

    Before a non-residential building can be evaluated energetically, the building has to be divided into individual areas with identical boundary conditions zoning. The process of zoning is an elementary step within the balancing according to DIN V It provides, beside the determination of geometrical data, the basis for further computations. Zoning, especially the gathering of data connected to it, is a very time-consuming task, because the building areas and volumes have to be determined for each zone individually.

    Nevertheless, zoning is mandatory because of the often completely different net energies to be provided. In order to reduce this effort, a Single-Zone-Model was added to the Energieeinsparverordnung, which may be used under certain preconditions. However, in comparison to the Multi-Zone-Model, differences in the evaluation results are possible. The elimination of weak points, that is to say the difference in time and result, is reached by the computation of the annual primary energy demand on the basis of an Improved-Single-Zone-Model.

    The advantage of the Improved-Single-Zone-Model in comparison to the Multiple-Zone-Model is the simplified data evaluation in the field of zoning. The advantage of the Improved-Single-Zone-Model in comparison to the Single-Zone-Model is the reduced difference in the results of the annual primary energy demand. The basic principle of the Improved-Single-Zone-Model depends on a percentage division of each use value concerning the net building area.

    Due to this improved use values the balancing is no longer determined on the basis of general values by acceptance of a prior existing zone, but there is a calculated average value of all existing zones. This thesis introduces an Improved-Single-Zone-Model for school buildings with regard to zoning.

    This procedure obtains a relatively exact result with low expenditure of time by utilization of improved use values. Generally, this procedure can be easily applied for other types of non-residential buildings. Delivery of parameterization schemes for the determination of the regional evapotranspiration of different land surfaces. Final report; Bereitstellung von Parameterisierungsverfahren zur Bestimmung der regionalen Verdunstung verschiedener Landoberflaechen.

    Abschlussbericht The task was the delivery of parameterization schemes for the calculation of the regional evapotranspiration of different land surfaces. The main weight was on the discussion of existing approaches and on the development of new ones for the calculation of evapotranspiration.

    After consideration of different concepts the well-known Penman-Monteith equation proved to the optimal basis of calculation. Under consideration of the dependence of these resistances of the spatial scale leaf, canopy as well as of the time scale hour, day possibilities for their estimation were discussed. For bare soil an approach was developed which allows approximately to give a new interpretation to surface resistances from evapotranspiration courses, described in literature as proportional to the square root of time.

    Dabei lag das Schwergewicht auf der Diskussion bereits bestehender und der Entwicklung neuer Ansaetze zur Berechnung der Verdunstung. Nach der Betrachtung unterschiedlicher Konzepte erwies sich die bekannte Penman-Monteith-Gleichung als optimale Berechnungsgrundlage. Characterization of Zur -dependent genes and direct Zur targets in Yersinia pestis. Up to now, regulation of zinc homeostasis by Zur is poorly understood in Y. Results We constructed a zur null mutant of Y. Microarray expression analysis disclosed a set of Zur -dependent genes of Y.

    Based on the Zur -dependent genes, predicted regulatory Zur motifs were used to screen for potential direct Zur targets including three putative operons znuA, znuCB and ykgM-RpmJ2. The LacZ reporter fusion analysis verified that Zur greatly repressed the promoter activity of the above three operons. The subsequent electrophoretic mobility shift assay EMSA demonstrated that a purified Zur protein was able to bind to the promoter regions of the above three operons. The primer extension assay was further used to determine the transcription start sites for the above three operons and to localize the and elements.

    Zur binding sites overlapped the sequence of its target promoters, which was consistent with the previous observation that Zur binding would block the entry of the RNA polymerase to repress the transcription of its target genes. Zur contributes to zinc homeostasis in Y. CFD calculation of a catalyst near the engine connected in series with an exhaust turbocharger; CFD- Berechnung fuer einen motornahen Katalysator nach Abgasturbolader. Under the pressure of ever shorter development times and high demands on exhaust systems in terms of exhaust counterpressure, acoustic and sensory aspects and exhaust purification, Zeuna Staerker started at an early stage to use advanced CFD methods in their product development process.

    The contribution investigates the effects of simplified assumptions of boundary conditions, using laser optical flow measurements on a turbocharger with a catalyst near the engine. Doch wie stark werden CFD-Berechnungen durch die aufgepraegten Randbedingungen beeinflusst, wenn diese nach Abgasturbolader oft vereinfacht angenommen werden muessen? Mit Hilfe laseroptischer Stroemungsmessungen an einem Abgasturbolader mit motornahem Katalysator wird dieser Frage nachgegangen.

    Functional-anatomic evaluation of dilated uropathies in children using combined MR-nephrography and MR-urography compared to renal scintigraphy; Funktionell-anatomische Diagnostik dilatierter Uropathien bei Kindern mit kombinierter MR-Nephrographie und MR-Urographie im Vergleich zur renalen Isotopennephrographie. Reither, M. Purpose: to evaluate MR-tomographic assessment of split renal function and degree of obstruction compared to diuretic renal scintigraphy, and pathoanatomic imaging of the urinary tract as all in one exam.

    Patients and methods : in a prospective study 62 children, aged 1 month to 9. In all patients we did T2w water-technique MR-urography additionally. Due to technical failures 8 cases couldn't be calculated. Comparing degrees of obstruction there was an agreement in 57 out of 62 patients, 3 studies were gradually over-, 2 underestimated. All but one morphologic diagnoses in advance obtained by ultrasound and completed by other imaging modalities later on were confirmed MR-urographically.

    Though correctly imaged the functionless upper moiety in a renal duplication with ureterocele was misinterpreted at a first glance. In diesem Artikel wird ein robustes Verfahren zur Verzweigungserkennung vorgestellt. Influence of biogenic and natural emissions derived from different data sets and calculation methods on modeled concentrations of pollutants. Einfluss der biogenen und natuerlichen Emissionen, abgeleitet aus verschiedenen Datensaetzen und Berechnungsmethoden, auf modellierte Schadstoffkonzentrationen.