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Klinger V.,Hanover University of Applied Sciences
3rd International Workshop on Innovative Simulation for Health Care, IWISH 2014 | Year: 2014

The use of nerve signals for a prosthesis control or limb stimulation is one great challenge in medical technology. It requires a recording of the electroneurogram (ENG) data and an identification of the motion-based action potentials of motoric, feedback and sensoric nerves within the corresponding neural bundle. We have realized a prototyping system for the data acquisition of ENG data, including an identification framework, described in (Klinger and Klauke 2013). In this paper we introduce the verification concept of the identification process using synthetic datasets generated based on robot manipulator and electroneurogram simulator. The objective is to define a method to compare motion based trajectories and their corresponding ENG signals to prepare the future analysation and identification of human ENG data.

Steinke K.-H.,Hanover University of Applied Sciences
CSAE 2012 - Proceedings, 2012 IEEE International Conference on Computer Science and Automation Engineering | Year: 2012

In many Botanical Museums in the world exist millions of dried plants on paper sheets. They were collected in the last two hundred years. The collectors left annotations about the plants on the sheets. Some of them are written in handwriting others by a typewriter. There exist also comments on printed forms which are glued on the sheets. By an automatic OCR of the scanned herbarium objects the recognized texts can be put into a database. Commercial OCR-programs like Finereader or Omnipage are capable to recognize undisturbed printed texts in a correct way. Unfortunately we deal with historical material which often contains overwritten or crossed out words, the paper is yellowed, molded and has other artifacts. Moreover it seems to be extremely complicated to detect text regions in a complex environment with objects like roots, leaves, stamps, bar codes, yardsticks, color charts etc. The old writing leads to read errors which are not the biggest problem, because they can be compensated by tolerant database queries. Worse is that sometimes text regions cannot be localized. In this paper a method is presented which helps Omnipage to detect missed text and also can distinguish printed text from handwriting. © 2012 IEEE.

Lowe M.,Hanover University of Applied Sciences
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2015

The paper extends Sesqui-Pushout Graph Rewriting (SqPO) by polymorphism, a key concept in object-oriented design. For this purpose, the necessary theory for rule composition and decomposition is elaborated on an abstract categorical level. The results are applied to model rule extension and type dependent rule application. This extension mechanism qualifies SqPO – with its very useful copy mechanism for unknown contexts – as a modelling technique for extendable frameworks. Therefore, it contributes to the applicability of SqPO in software engineering. A version management example demonstrates the practical applicability of the combination of context-copying and polymorphism. © Springer International Publishing Switzerland 2015.

Stein M.,Hanover University of Applied Sciences
AIP Conference Proceedings | Year: 2011

Let Fn and Ln denote the Fibonacci and Lucas numbers, respectively. D. Duverney, Ke. Nishioka, Ku. Nishioka and I. Shiokawa proved that the values of the Fibonacci zeta function ζF(2s)= Σn=1 ∞Fn -2s are transcendental for any s∈ℕ using Nesterenko's theorem on Ramanujan functions P(q), Q(q), and R(q). They obtained similar results for the Lucas zeta function ζL(2s)=Σn=1 ∞L n -2s and some related series. Later, C. Elsner, S. Shimomura and I. Shiokawa found conditions for the algebraic independence of these series. In my PhD thesis I generalized their approach and treated the following problem: We investigate all subsets of {n=1Σ∞1/F n 2s1,n=1Σ∞(-1)n+1/F n 2s2,n=1Σ∞1/Ln 2s3,n= 1Σ∞(-1)n+1/Ln 2s4:s 1,s2,s3,s4∈ℕ} and decide on their algebraic independence over ℚ. Actually this is a special case of a more general theorem for reciprocal sums of binary recurrent sequences. © 2011 American Institute of Physics.

Endres H.-J.,Hanover University of Applied Sciences
Kunststoffe International | Year: 2011

The sale of plastic carrier bags made from petrochemical raw material has been banned in Italy. With continuously growing quantities of biopolymers in the marketplace, it is increasingly necessary and sensible also to consider all other alternative disposal options for biopolymer packaging alongside composting. In manufacturing and processing biopolymers fundamentally the same technology can be used as for conventional plastics. Barrier properties are one area where biopolymers with their polar structure show a significant difference when compared to conventional polymers like polyethylene, polypropylene or polyethylene terephthalate. Amongst the biogdegradable biopolymers only PLA, the biopolymer that has been furthest developed as a packaging material up until now, and polyhydroxy alkanoates show a certain degree of barrier functionality for water vapor. The most promising possibility to improve the barrier properties of biopolymers is said to be coating.

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