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Number of results: 8
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Abstract

High-temperature solid oxide fuel cells (SOFCs) are considered as suitable components of future large-scale clean and efficient power generation systems. However, at its current stage of development some technical barriers exists which limit SOFC’s potential for rapid large-scale deployment. The present article aims at providing solutions to key technical barriers in SOFC technology. The focus is on the solutions addressing thermal resistance, fuel reforming, energy conversion efficiency, materials, design, and fuel utilisation issues.

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Authors and Affiliations

Jarosław Milewski
Wojciech Budzianowski
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Abstract

The present paper is dedicated to the analysis of deployable tensegrity columns. The main aim of this work is to present a technique, developed by combining the finite element (FE) analysis and the multibody dynamics (MBD) simulation, which enables precise and reliable simulations of deployable structures. While the finite element model of the column provides information on structural behavior in the deployed state, the dynamical modeling allows to analyze various deployment scenarios, choose active cables for the deployment and for the self-stress application, and to control distributions of internal forces during the assembly process. An example of a deployable column based on a popular tensegrity module – a 3-strut simplex – is presented. By analyzing the proposed column with the use of the developed method it is proven that the technique is suitable for complex simulations of deployable systems.

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Authors and Affiliations

Anna Al Sabouni-Zawadzka
ORCID: ORCID
Adam Zawadzki
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Abstract

World Class Manufacturing system consists of ten technical and ten managerial pillars.

These, impacting directly and indirectly on each other, generate the flow of internal processes. Two of the mentioned pillars, Early Product Management (EPM) and Cost Deployment

(CD) play a special role in the system, because they create a future strategic management

of a company influencing design engineering, manufacturing and economy [1, 2]. Referring

to the author’s previous publications on Early Product Management methodology [3, 4], the

role of Cost Deployment pillar in the new product launch remains an important issue. Additionally, there is a noticeable lack of publications in this specific field of the WCM system.

Therefore, a proper understanding of the relationship between these two technical pillars

is the basis for effective project management for the implementation of new products. In

this article, the correlation between EPM and CD will be highlighted whereas some critical

remarks will be indicated. The main part of the article will describe: the current approach to

project management according to the standards set by the WCM system and recommended

improvements originated from EPM and CD pillars. The quality scientific methods used in

this article are based on a case study of internal processes in an international plant specializing in agriculture machinery production and include elements of direct observation and

theoretical analysis and synthesis. This paper refers to the presented issues in practical terms

on the example of the methodology of managing of new launch product projects in terms of

cost management. The purpose of this paper is to draw attention to the problem of the cost

factor generated during the design phase and early implementation of the new product into

production, which will enable effective cost management of new implementation projects.

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Authors and Affiliations

Andrzej Mróz
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Abstract

The paper is dedicated to the robustness analysis of scalar multi-agent dynamical systems. The open problem we aim to address is the one related to the impact of additive disturbances. Set-theoretic methods are used to achieve the main results in terms of positive invariance and admissible bounds on the disturbances.
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Authors and Affiliations

Katarzyna Topolewicz
1
Sorin Olaru
2
Ewa Girejko
1
Carlos E.T. Dórea
3

  1. Faculty of Computer Science, Bialystok University of Technology, Poland
  2. Laboratory of Signals and Systems Centrale-Supelec, University Paris-Saclay, France
  3. Department of Computer Engineering and Automation, Universidade Federal do Rio Grande do Norte, UFRN-CT-DCA, 59078-900 Natal, RN, Brazil
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Abstract

This paper presents equilibrium mechanics and a finite element model for analysing a scissor structure that contains pivots with zero bending stiffness representing structural instability. The pivot at the centre of each structural unit, which is a feature of scissor structures, can be used to transfer the displacement between the units. It cannot, however, transfer the rotation between these units, and the angular stiffness must be considered independently for each unit. To construct a general model of the scissor structure, a scissor unit was developed using the left and right boundary connections of adjacent units to simulate a periodically symmetric structure. The proposed method allows us to obtain an accurate distribution of the internal forces and deflections without the use of special elements to account for central pivots.

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Authors and Affiliations

I. Ario
T. Yamashita
Y. Chikahiro
M. Nakazawa
K. Fedor
C. Graczykowski
P. Pawłowski
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Abstract

To survive in the competitive challenges, the products have to be designed to meet the needs and requirements of customers, differ from the competitors, and be friendly with the environment. This research was to propose an innovative design approach for charcoal briquette packaging design to meet the customer requirements. The customer requirements were explored and translated to product characteristics by using quality function deployment. The customers’ perceptions to product visual forms were explored through the emotional design approach. Customers’ requirements and customer perceptions were integrated to create a new charcoal briquette packaging. A new packaging design and process during its life cycle was evaluated an impact on the environment through carbon footprint values. The result showed that the innovative design approach can be used to guide designer design the charcoal briquette packaging to meet the requirements and perceptions of customers, illustrate the product identity and be friendly with the environment.
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Authors and Affiliations

Pilada Wangphanich
1
Nattapong Kongprasert
1

  1. Department of Industrial Engineering, Faculty of Engineering, Srinakharinwirot University, Thailand
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Abstract

This paper explores cost-effective alternatives for resource-constrained environments in the context of language models by investigating methods such as quantization and CPUbased model implementations. The study addresses the computational efficiency of language models during inference and the development of infrastructure for text document processing. The paper discusses related technologies, the CLARIN-PL infrastructure architecture, and implementations of small and large language models. The emphasis is on model formats, data precision, and runtime environments (GPU and CPU). It identifies optimal solutions through extensive experimentation. In addition, the paper advocates for a more comprehensive performance evaluation approach. Instead of reporting only average token throughput, it suggests considering the curve’s shape, which can vary from constant to monotonically increasing or decreasing functions. Evaluating token throughput at various curve points, especially for different output token counts, provides a more informative perspective.
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Authors and Affiliations

Bartosz Walkowiak
1
Tomasz Walkowiak
1

  1. Faculty of Information and Communication Technology, Wroclaw University of Science and Technology, Wroclaw, Poland
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Abstract

The Distributed Ledger Technology (DLT) is a peer-to-peer model of sharing data among collaborating parties in a decentralized manner. An example of DLT is a blockchain where data form blocks in an append-only chain. Software architecture description usually comprises multiple views. The paper concentrates on the Deployment view of the DLT solution within the 1+5 architectural views model. The authors have proposed Unified Modeling Language (UML) extensibility mechanisms to describe the needed additional semantic notation to model deployment details. The paper covers both the network and node levels. The proposed stereotypes and tagged values have enriched UML Deployment diagram. We have gathered those modeling elements in dedicated UML Profile for Distributed Ledger Deployment. We have applied the profile to model Deployment view of a renewable energy management system that uses R3 Corda framework. The system records information about inbound and outbound energy to/from renewable energy grid.

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Authors and Affiliations

Tomasz Górski
Jakub Bednarski

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