Uwe Grossmann

Uwe Grossmann
University of Applied Science and Arts Dortmund | FH Dortmund · Faculty of Business Studies

Prof. Dr.

About

50
Publications
5,508
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373
Citations
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November 1987 - present
University of Applied Science and Arts Dortmund
Position
  • Professor (Full)

Publications

Publications (50)
Conference Paper
Machine-to-machine communication (M2M) is one of the major innovations in ICT sector. Especially in agricultural business with heterogeneous machinery, diverse process partners and high machine operating costs, M2M offers large potential in process optimization. Within this paper a concept for process optimization in agricultural business using M2M...
Conference Paper
The implementation of a reliable indoor localization system can be the starting point for a variety of much desired applications. Either we want to implement a solution for efficient patient monitoring inside a hospital or an automatic guide inside a museum, a working localization solution is needed. Smartphone technology provides us with a powerfu...
Conference Paper
Full-text available
In electricity grids current production has to meet usage at all times. Load curves show several load peaks during the day leading to problems for electricity providers. In this paper it is shown how to build load- and time-variable tariffs to obtain defined target load curves through demand response. Results show that total annual costs rise if lo...
Conference Paper
Full-text available
This paper presents positioning algorithms for WLAN environments based on RSSI-fingerprinting and Euclidean Distance (EDA). The adapted algorithms can be used in large and dynamically changing environments and multi-level buildings. Evaluation results show a median location estimation error (MLEE) of 2.12m. The discrete third spatial direction (flo...
Article
Full-text available
This paper presents an algorithm for RSSI fingerprint positioning based on Euclidean distance for the use in a priori existing larger and dynamically changing WLAN infrastructure environments. Symptomatical for such environments are changing sets of base stations for different calibration points and for calibration phase and positioning phase. The...
Conference Paper
Full-text available
Many scenarios for indoor positioning require position estimation not only in two dimensions but in the third dimension as well. This paper presents the expansion of two two-dimensional WLAN fingerprinting localization algorithms based on received signal strength indication (RSSI) to the third dimension. The third dimension is regarded discretely a...
Article
Full-text available
As modern mobile devices are often equipped with a WLAN interface and many buildings are equipped with a WLAN infrastructure, WLAN could be used for localization. The aim of this work is to investigate the quality of different indoor positioning methods based on values of WLAN received signal strength index (RSSI) using commercially available devic...
Conference Paper
Full-text available
Often mobile devices like mobile phones or personal digital assistants (PDA) are equipped with IEEE 802.11 WLAN adapters. Furthermore, within many buildings a WLAN infrastructure is available. The aim of this work is to investigate the quality of different indoor positioning methods based on values of WLAN received signal strength index (RSSI) usin...
Article
Full-text available
The use of mobile information and service systems can cause an added value in preparation and development of residential and business areas for the involved actors and user groups. Within a practice example (industry wasteland PHOENIX west) potentials are shown how a mobile information and service system can support the area and location developmen...
Article
Full-text available
Often mobile devices like mobile phones or personal digital assistants (PDA) are equipped with IEEE 802.11 WLAN adapters. Furthermore, within many buildings a WLAN infrastructure is available. The aim of this work is to investigate the quality of different indoor positioning methods based on values of WLAN received signal strength index (RSSI) usin...
Chapter
Das Multimediale Informations- und Lehrsystem (MILES) ist ein menü- und datenbankorientiertes, “offense” Autorensystem auf der Grundlage eines multimedialen Dokumenten-Retrieval-Systems. Seine Ausgangsversion, Studienmodell Physiologie, wurde 1986 – 1989 im Institut für Physiologie am Universitätsklinikum Essen entwikkelt; es wird in Kooperation mi...
Chapter
Am Fachbereich Wirtschaft der Fachhochschule Dortmund werden in den Studiengängen Wirtschaft und International Business mit dem Studienschwerpunkt Betriebsinformatik (BI) und in dem Zusatzstudiengang Wirtschaftsingenieurwe-sen Betriebswirte und Wirtschaftsingenieure ausgebildet. Nach 7 bis 8 Fachsemestern erhalten jährlich ca. 160 Studenten ihre Gr...
Chapter
Der Gesprächskreis wurde von Prof. Dr. Wiemer (Moderation) gegen 15:00 Uhr eröffnet. Einschließlich der regen Diskussion, die sich im Anschluß an die Vorträge und Präsentationen entwickelte, dauerte die Sitzung bis gegen 19:00 Uhr.
Chapter
Zwischen dem Fachbereich Wirtschaft der Fachhochschule Dortmund und der Plymouth Business School der University of Plymouth (vormals Polytechnic South West) in Plymouth, Großbritannien bestehen seit Jahren enge Beziehungen, die unter anderem in einem gemeinsamen deutsch/britischen Studiengang “International Business” zum Ausdruck kommen. Studenten...
Conference Paper
A new teaching-orientated multimedia information system which utilizes advanced technology has gone into application in three different subject areas and universities. The basic system was developed as STUDIENMODELL PHYSIOLOGIE in the Department of Physiology, University of Essen (Prof. Dr. Wolfgang Wiemer), primarily for applications in physiology...
Article
The influence of oxygen supply on the development of necrotic zones in tumors is still unknown. It is therefore of considerable interest to know whether oxygen consumption in tumors decreases with increasing distance to the site of oxygen supply. If so, O2 consumption variations must be considered when the size of oxygen depleted zones is calculate...
Article
The use of transcutaneous PO2 measuring techniques in clinics induces an enhanced need to understand the oxygen exchange processes within the upper skin. Several authors (Eberhard, 1976; Quinn, 1978; Lübbers, 1979; Thunstrom et al., 1979) used the combined approach of a Krogh model for stratum papillare and a layer model for epidermis to analyze th...
Article
The exchange processes of blood gases within and through the upper skin had become of considerable interest in the last years since the transcutaneous blood gas monitoring had been introduced in clinics (see Huch et al., 1981). Since the relationship between transcutaneous Po2 measured at 43°C at the skin surface and arterial Po2 at body temperatur...
Article
The transport of respiratory gases as oxygen and carbon dioxide through tissues and blood and their functional relations has been investigated in the past by numerous authors (for example: Roughton, 1964; Severinghaus, 1966; Thews, 1968; Lübbers, 1979). Due to the introduction of transcutaneous Po2 and Pco2 measuring techniques in clinical medicine...
Article
The distribution of oxygen inside multicellular spheroids serving as a tumor model (Sutherland et al. 1971; Sutherland and Durand 1976; Yuhas et al. 1977; Haji-Karim and Carlsson 1978) is of considerable interest, since the questions as to whether lack of oxygen induces the development of necrotic zones and whether it enhances the radioresistance o...
Article
In order to study the influence of oxygen supply on the development of necrotic zones in tumors Carlsson et al (1979) measured Po2 profiles inside cellular spheroids. Our aim is to calculate oxygen consumption profiles from these measured pO2 values. It is especially interesting to know if the oxygen consumption decreases significantly with depth i...
Article
Po2 profiles and necrotic zones within cellular spheroids growing in a culture medium have been determined by Carlsson et al (1979).
Article
In the last years skin oxygen supply has become of particular interest, since the transcutaneous PO2 measuring technique has been introduced in clinics as a diagnostic tool. The basis of a correct application of this measuring technique is the understanding of the oxygen exchange processes through the upper skin. As in other organs, the O2 supply b...
Article
In addition to the measurement of transcutaneous Po2 electrodes to registrate transcutaneously arterial Pco2 have been introduced (see Huch et al, 1973). However, to our knowledge there is no theoretical analysis available investigating the CO2 exchange through the skin under this point of view. Since CO2 exchange obeys the same laws of diffusion a...
Conference Paper
Transient oxygen and dioxide exchange processes within the upper skin can be simulated with the model of a microcirculatory unit. After a short description of the capillary loop model the corresponding mathematical nonlinear parabolic initial boundary value problem and the numerical procedure to calculate an approximation of the solution is present...
Article
A model of a microcirculatory unit has been developed to study oxygen exchange processes within the upper part of the skin. The model includes the loop-shaped capillary structure of stratum papillare, the nonlinear binding of oxygen by hemoglobin, and, in particular, the shift of the oxygen hemoglobin dissociation curve due to temperature variation...
Conference Paper
A model of a microcirculatory unit has been developed to study oxygen exchange processes within the upper part of the skin. The model includes the loop-shaped capillary structure of the stratum papillare, the nonlinear binding of oxygen hemoglobin binding and, in particular, the shift of the oxygen hemoglobin binding curve due to temperature variat...
Chapter
This chapter describes a new model for simulating the oxygen pressure field of skin. Experiments have shown that in many cases, arterial oxygen partial pressure can be noninvasively determined by measuring pO2 on the skin surface. The chapter discusses the development of a model of the oxygen supply to the skin. According to the anatomic data of th...
Article
The main topic of this symposium is the measurement of ions such as K+, Na+, Ca2+ etc. by means of potential differences produced by specific ion carriers across a fluid layer or a suitable membrane. I would like to mention that absorption as well as fluorescence measurements with specific indicators represent additional approaches to the measureme...
Article
Quasilinear transmission problems of both the elliptic and pseudoparabolic type with differential operators in divergence form simulating oxygen transport in capillary and tissue are investigated. Using recent methods of the theory of pseudomonotone operators and singular perturbations (elliptic regularization) the existence of weak solutions for b...
Article
Using the method of local hydrogen clearance according to Lübbers and Stosseck [1], hydrogen is electrochemically generated for about 1 s by one electrode, and the hydrogen pressure,p (t), is polarographically measured by another electrode located at a distance of about 300 μm. For the evaluation of the local clearance R. Wodick could show that the...
Chapter
Acker et al. (2) have shown that a decrease or an increase of the PaO2 induces uneven increases or decreases of the tissue PO2 within the carotid body. After increasing the PaO2, the low tissue PO2 values increase slightly, the high ones considerably. Similarly, after decreasing the PaO2 the low tissue PO2 values decrease slightly, the high ones st...

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Projects (3)
Archived project
Project
Smart Service Power möchte durch intelligente Digitalisierung und Smartifizierung das altersgerechte technikgestützte Wohnen im Quartier ermöglichen. Kranke, Pflege-/Hilfebedürftige, Behinderte und Senioren sollen dabei durch Prävention, haushaltsnahe Versorgung und vernetzte Wertschöpfungsketten so lang wie möglich sozial integriert in ihrem eigenen Quartier verbleiben, was ihrem persönlichen Wunsch entspricht, aber auch Pflegekosten und soziale Folgekosten für Krankenkassen, kirchliche Träger und Kommunen reduziert. Das Projekt stellt damit Menschen in den Mittelpunkt und ist an den Bedürfnissen der Bewohner und des Pflegepersonals ausgerichtet. Es möchte gemäß des Schwerpunkts des OP EFRE NRW 2014–2020 als Enabler für Pflege 4.0 als Spezialisierung von Industrie 4.0 und dem Internet der Dinge für nachhaltige Quartiersentwicklung und Prävention sorgen.