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Graphical modeling techniques and usefulness in the Model Driven Arcitechture: Which are the criteria for a “good” Computer independent model?

The Object Management Group (OMG) has presented a framework for model driven development: Model Driven Architecture (MDA). The departure point of this paper is an interest in process oriented modeling techniques relevant for a computer independent model in the MDA. We searched for the answer on the question what constitutes a “good” computer independent model (CIM). To get an answer we were using

Distributed generation – new technical solutions required in the distribution system

The share of distributed generation (DG) is expected to grow rapidly in near future. In addition to the environmental aspects also the shorter construction period can be considered as a key driving force accelerating the development. However, there are also some severe barriers before wider employment of DG is possible. One of them is the connection to network or grid. Especially when we consider

Climatic Design of Buildings using Passive Techniques

Buildings in developing countries are often designed without taking sufficient account of the climate. Factors such as the urban surroundings or site characteristics, orientation and architectural design of the building, choice of building materials, etc are not given enough importance. Consequently buildings often have a poor indoor climate, which affects comfort, health and efficiency. The probl

Pyridine Nucleotides in Plant Mitochondria. Amounts, metabolism and contribution to electron transport

Popular Abstract in Swedish Mitokondrier är små stavformade eller runda organeller (0.5-2 µm). De producerar huvuddelen av den energi som krävs för cellens livsuppehållande processer. Antalet mitokondrier per cell kan variera med vävnadens energibehov. Ett exempel är människans spermie som innehåller ett stort antal mitokondrier vilka behövs för producera den energi som åtgår när spermien simmar tHPLC analysis was used for direct quantification of amounts and redox levels of pyridine nucleotides in plant mitochondria. The amount of NAD(H) and NADP+ varied, 1.0-3.7 and 0-0.5 nmol (mg protein)-1, respectively, depending on the species from which nucleotides were extracted. NADPH was never detected. Submitochondrial localisation of NAD+-degrading enzymes indicated that matrix NAD+ diffuses i

A genie-aided detector with a probabilistic description of the side information

Building on Forney's concept of the genie (1972), and introducing the idea of an explicit statistical description of the side information provided to the genie-aided detector, we develop a generic tool for derivation of lower bounds on the bit-error rate of any actual receiver. With this approach, the side information statistics become design parameters, which may be chosen to give the resulting b