Conceptual project of biomass fired district heating power plant
Zawojak, Sylwia; Żurawska, Monika; Czopek, Przemyslaw; Dziwak, Bartosz; Nowak, Mateusz
2014 - anglický
Klíčová slova:
biomasa; dálkové vytápění; projekt; biomass; district heating; project
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Conceptual project of biomass fired district heating power plant
Using pyrolysis of biomass for production fuels and gases for energetics
Bucko, Samuel; German-Sobek, Martin; Pavlík, Marek; Király, Jozef; Novák, Matúš
2014 - anglický
The Pyrolysis method for biomass processing was presented in this paper. One from lot of methods for
comparing kinds and properties of biomass in pyrolysis process was selected thermogravimetric
analysis (TGA). The aim of this paper is presenting current research in pyrolysis from agricultural
countries. In general, using of biomass can be convenient, primarily in developing countries for
fulfillment international emission standards.
Klíčová slova:
biomasa; pyrolýza; palivo; plyny; biomass; pyrolysis; fuel; gases
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Using pyrolysis of biomass for production fuels and gases for energetics
The Pyrolysis method for biomass processing was presented in this paper. One from lot of methods for comparing kinds and properties of biomass in pyrolysis process was selected ...
The negative effects of biomass combustion and co-combustion in small power boilers
Hardy, Tomasz
2014 - anglický
Klíčová slova:
biomasa; malé elektrické kotle; negativní vlivy; biomass; small power boilers; negative effects
Plné texty jsou dostupné v digitálním repozitáři ZČU.
The negative effects of biomass combustion and co-combustion in small power boilers
Overview of biomass usage in combined heat and power units
Király, Jozef; Novák, Matúš; Zbojovský, Ján; Lisoň, Lukáš
2014 - anglický
This article deals with overview of biomass usage in combined heat and power units (CHP). The aim
of the paper is to explain fundamentals and basic properties of these units and heat and power
generation with these units. Article deals also with basic requirements for connecting these blocks into
power grid and differences in operation between decentralised CHP units and centralised power
plants. In beginning of article the authors devote about basic principles of extraction fuel from
biomass and with processing of biomass. Decentralised units are introduced also on examples of onsite
solutions of these units.
Klíčová slova:
biomasa; topení; kombinovaná tepelné a elektrické jednotky; biomass; heating; combined heat and power units
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Overview of biomass usage in combined heat and power units
This article deals with overview of biomass usage in combined heat and power units (CHP). The aim of the paper is to explain fundamentals and basic properties of these units and heat and ...
Impact of connection point of alternative energy sources to the size of short circuit current in the distribution network
Kmec, Miroslav; Jakubčák, Roman; Lisoň, Lukáš; Čonka, Zsolt; Beňa, Ľubomír
2014 - anglický
Nowadays it is effort to use as much as possible renewable (alternative) sources of electricity based on
the sun radiation (biomass, hydro, wind or solar power). These plants are environmentally friendly
and do not pollute the environment as much as it was in traditional coal power plants. These sources
are at present in a large number were connected to the existing distribution network. Due to the
increase of these sources in distribution networks is necessary to examine their impact on the overall
operation of the network as in normal operation as well as a fault condition. The aim of this paper is
to point out of impact location of connection newly built alternative energy sources, especially
biomass power plants (BPP) to the size of short-circuit current during fault in the distribution
network. This paper describes possible connection of these sources into power system, short
theoretical knowledge for short circuit calculation in distribution network and simulation in program
Matlab / Simulink.
Klíčová slova:
alternativní zdroje energie; zkratový proud; distribuční síť; alternative energy sources; short circuit current; distribution network
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Impact of connection point of alternative energy sources to the size of short circuit current in the distribution network
Nowadays it is effort to use as much as possible renewable (alternative) sources of electricity based on the sun radiation (biomass, hydro, wind or solar power). These plants are environmentally ...
Character Transfer: Example-based individuality retargeting for facial animations
Kato, Takuya; Saito, Shunsuke; Kawai, Masahide; Iwao, Tomoyori; Maejima, Akinobu; Morishima, Shigeo
2014 - anglický
A key disadvantage of blendshape animation is the labor-intensive task of sculpting blendshapes with
individual expressions for each character. In this paper, we propose a novel system ”Character Transfer”, that
automatically sculpts blendshapes with individual expressions by extracting them from training examples; this
extraction creates a mapping that drives the sculpting process. Comparing our approach with the naïve method of
transferring facial expressions from other characters, Character Transfer effectively sculpted blendshapes
without the need to create such unnecessary blendshapes for other characters. Character Transfer is applicable
even the training examples are limited to only a few number by using region segmentations of the face and the
blending of the mappings.
Klíčová slova:
animace obličeje; blandshape animace; segmentace modelu obličeje; výraz obličeje; facial animation; blendshape animation; facial model segmentation; facial expression
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Character Transfer: Example-based individuality retargeting for facial animations
A key disadvantage of blendshape animation is the labor-intensive task of sculpting blendshapes with individual expressions for each character. In this paper, we propose a novel system ”Character ...
Accurate thickness computation of a B-Rep model on the GPU
Lemasson, Grégoire; Iehl, Jean-Claude; Zara, F.; Baudet, Vincent; Arthaud, Philippe; Shariat, Behzad
2014 - anglický
In this paper, we present a technique that calculates the thickness of a B-Rep model. This calculation is performed
directly on trimmed NURBS and not on a triangular approximation. We determine the thickness in parallel on
GPU, by computing the radius of maximal spheres contained within the B-Rep model. The results are presented
by a color-coded thickness map. A detailed study of our results demonstrates a very important gain in stability,
precision and computation time compared to others approaches.
Klíčová slova:
výpočet tloušťky; parametrické plochy; ořezávání křivek; Newtonovy iterace; grafické procesory; thickness computation; parametric surfaces; trimming curves; Newton iterations; graphic processing units
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Accurate thickness computation of a B-Rep model on the GPU
In this paper, we present a technique that calculates the thickness of a B-Rep model. This calculation is performed directly on trimmed NURBS and not on a triangular approximation. We determine the ...
A Stable and Invariant Three-polar Surface Representation: Application to 3D Face Description
Jribi, Majdi; Ghorbel, Faouzi
2014 - anglický
In this paper, we intend to introduce a new curved surface representation that we qualify by three-polar. It is
constructed by the superposition of the three geodesic potentials generated from three reference points of the
surface. By considering a pre-selected levels set of this superposition, invariant points are obtained. A comparative
study between this representation and the unipolar one based on the level curves around one reference point is
established in the sense of the stability under errors on the reference points positions. The three-polar representation
is applied, finally, for 3D human faces description. Its accuracy is performed in the mean of the Hausdorff shape
distance.
Klíčová slova:
reprezentace povrchu; 3D popis; obličej; surface representation; 3D description; face
Plné texty jsou dostupné v digitálním repozitáři ZČU.
A Stable and Invariant Three-polar Surface Representation: Application to 3D Face Description
In this paper, we intend to introduce a new curved surface representation that we qualify by three-polar. It is constructed by the superposition of the three geodesic potentials generated from three ...
Supervised Force Directed Algorithm for the Generation of Flow Maps
Debiasi, Alberto; Simões, Bruno; De Amicis, Raffaele
2014 - anglický
Cartographic flow maps are graphical representations for portraying the movement of objects, such as people,
goods or traffic network, from one location to another. On the one hand, flow maps can reduce visual clutter by
merging single representations of movement. On the other hand, flow maps are also fast to produce and simple
to understand. In this paper, we present a new method for the automatic generation of flow maps. Our method is
based on a theoretically grounded physical system to describe the motion and forces of attraction and repulsion
between data points. Additionally, support for an optional supervision of the graph layout is also available. Finally,
the cost of our algorithm is evaluated and a comparison with existing implementations is provided. Results have
shown a good balance between computational complexity and the visual quality of the generated maps.
Klíčová slova:
mapy toku; kartografie; geovizualizace; grafická interakce; flow maps; cartography; geovisualization; graphic interaction
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Supervised Force Directed Algorithm for the Generation of Flow Maps
Cartographic flow maps are graphical representations for portraying the movement of objects, such as people, goods or traffic network, from one location to another. On the one hand, flow maps can ...
Review and Comparative Study of Ray Traversal Algorithms on a Modern GPU Architecture
dos Santos, Artur Lira; Teichrieb, Veronica; Lindoso, Jorge
2014 - anglický
In this paper we present a chronological review of five distinct data structures commonly found in literature and ray
tracing systems: Bounding Volume Hierarchies (BVH), Octrees, Uniform Grids, KD-Trees, and Bounding Interval
Hierarchies (BIH). This review is then followed by an extensive comparative study of six different ray traversal
algorithms implemented on a modern Kepler CUDA GPU architecture, to point out pros and cons regarding performance
and memory consumption of such structures. We show that a GPU KD-Tree ray traversal based on ropes
achieved the best performance results. It surpasses the BVH, often used as primary structure on state-of-the-art
ray tracers. Compared to BVHs, a carefully well implemented ropes-based KD-Tree is from 13 to 71% faster.
However, it may consume up to 9x more memory than other structures. This disadvantage can be a limiting factor
on memory limited architectures.
Klíčová slova:
sledování paprsku; algoritmy traversace paprsku; reprezentace scény pomocí hierarchie obálek; octree; uniformní mřížky; kd strom; ray tracing; ray traversal algorithms; bounding volume hierarchy; octree; uniform grids; kd tree; bounding interval hierarchy
Plné texty jsou dostupné v digitálním repozitáři ZČU.
Review and Comparative Study of Ray Traversal Algorithms on a Modern GPU Architecture
In this paper we present a chronological review of five distinct data structures commonly found in literature and ray tracing systems: Bounding Volume Hierarchies (BVH), Octrees, Uniform Grids, ...
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