Multicriterial Optimization of Technical Systems Considering Multiple Load and Availability Scenarios

Cheap does not imply cost-effective -- this is rule number one of zeitgeisty system design. The initial investment accounts only for a small portion of the lifecycle costs of a technical system. In fluid systems, about ninety percent of the total costs are caused by other factors like power consumption and maintenance. With modern optimization methods, it is already possible to plan an optimal technical system considering multiple objectives. In this paper, we focus on an often neglected contribution to the lifecycle costs: downtime costs due to spontaneous failures. Consequently, availability becomes an issue.

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How Can Knowledge Leakage be Stopped

International Journal of Sociotechnology and Knowledge Development ◽

10.4018/ijskd.2017010102 ◽

2017 ◽

Vol 9 (1) ◽

pp. 26-41

Author(s):

Mambo Governor Mupepi ◽

Aslam Modak ◽

Jaideep Motwani ◽

Sylvia C. Mupepi

Keyword(s):

System Design ◽

Value Creation ◽

Technical System ◽

Collaborative Approach ◽

The People ◽

Knowledge Leakage ◽

Philosophical Framework ◽

Technical Systems ◽

Knowledge Intensive

This article discusses how leakage of knowledge can occur in value creation networks embedded in knowledge-intensive firms, and how a collaborative approach can be utilized to minimize risk and increase sustainability. For knowledge to be preserved from unintentional outflow, its confidential nature and description must be understood at all levels. Loss of knowledge can occur at any point; whether it is through the process of consultation or when employees do their work. Forfeiture of information can be unintended or a planned effort. To prevent such unintended leakage, it is important to develop a shared mindset among employees to minimize the risk. The socio-technical system design is a philosophical framework that enables companies to simultaneously consider both ethical and technical systems in order to best match the technology and the people involved. History has shown through a number of situations that firms that failed to comprehend new opportunities were often limited by stakeholders' thoughts and actions.

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Flow Control Techniques for Enhancing the Bio-Recognition Performance of Microfluidic-Integrated Biosensors

Applied Sciences ◽

10.3390/app11157168 ◽

2021 ◽

Vol 11 (15) ◽

pp. 7168

Author(s):

Fatemeh Shahbazi ◽

Mohammad Souri ◽

Masoud Jabbari ◽

Amir Keshmiri

Keyword(s):

Flow Control ◽

Recognition Performance ◽

Active Flow Control ◽

Geometry Optimization ◽

Cost Effective ◽

Optimization Methods ◽

Biological Species ◽

Binding Assays ◽

Dna Strands ◽

Diffusion Migration

Biosensors are favored devices for the fast and cost-effective detection of biological species without the need for laboratories. Microfluidic integration with biosensors has advanced their capabilities in selectivity, sensitivity, controllability, and conducting multiple binding assays simultaneously. Despite all the improvements, their design and fabrication are still challenging and time-consuming. The current study aims to enhance microfluidic-integrated biosensors’ performance. Three different functional designs are presented with both active (with the help of electroosmotic flow) and passive (geometry optimization) methods. For validation and further studies, these solutions are applied to an experimental setup for DNA hybridization. The numerical results for the original case have been validated with the experimental data from previous literature. Convection, diffusion, migration, and hybridization of DNA strands during the hybridization process have been simulated with finite element method (FEM) in 3D. Based on the results, increasing the velocity on top of the functionalized surface, by reducing the thickness of the microchamber in that area, would increase the speed of surface coverage by up to 62%. An active flow control with the help of electric field would increase this speed by 32%. In addition, other essential parameters in the fabrication of the microchamber, such as changes in pressure and bulk concentration, have been studied. The suggested designs are simple, applicable and cost-effective, and would not add extra challenges to the fabrication process. Overall, the effect of the geometry of the microchamber on the time and effectiveness of biosensors is inevitable. More studies on the geometry optimization of the microchamber and position of the electrodes using machine learning methods would be beneficial in future works.

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Sustainable system design of electric powertrains—comparison of optimization methods

Engineering Optimization ◽

10.1080/0305215x.2021.1928660 ◽

2021 ◽

pp. 1-16

Author(s):

Philipp Leise ◽

Arved Eßer ◽

Tobias Eichenlaub ◽

Jean-Eric Schleiffer ◽

Lena C. Altherr ◽

...

Keyword(s):

System Design ◽

Optimization Methods ◽

Sustainable System ◽

Electric Powertrains

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DIGITAL DESIGN OPTIMIZATION OF A COMPLEX TECHNOLOGICAL SYSTEM

Fundamental and Applied Problems of Engineering and Technology ◽

10.33979/2073-7408-2021-347-3-85-90 ◽

2021 ◽

Vol 3 ◽

pp. 85-90

Author(s):

A.R. ABLAEV ◽

E.V. KHROMOV ◽

R.R. ABLAEV ◽

A.P. POLYAKOV

Keyword(s):

Design Optimization ◽

Level Structure ◽

Phenomenological Approach ◽

Digital Design ◽

Technical System ◽

Software Support ◽

Complex Technical System ◽

Complex Optimization ◽

Complex Technical Systems ◽

Technical Systems

The article investigates the issue of optimization of a complex technical system at the stage of its design using a heuristic–phenomenological approach. The analysis of the principles of complex optimization of complex technical systems is carried out. A four–level structure for the synthesis of methodological, informational and software support for complex optimization of complex technical systems is proposed, which will allow controlling the programmable parameters of complex technical systems at each stage of their design.

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Probabilistic-deterministic approach of controlling the functionality of a technical system in normal and emergency operation modes

MATEC Web of Conferences ◽

10.1051/matecconf/201822604008 ◽

2018 ◽

Vol 226 ◽

pp. 04008

Author(s):

Vladimir M. Zababurin ◽

Marina A. Egorova ◽

Yuliya A. Polyakova

Keyword(s):

Open Systems ◽

System Development ◽

Emergency Situation ◽

Emergency Operation ◽

Technical System ◽

Emergency Situations ◽

Recovery Processes ◽

Current State ◽

Self Organized Criticality ◽

Technical Systems

The main disadvantages of the existing methods of managing the current state of technical systems are revealed. A non-standard approach is proposed for managing the functionality of the system in emergency situations. The character of the dynamics of the recovery processes of the technical system is determined as its state approaches the emergency one on the basis of the recommendations of the theory of self-organized criticality (SOC). The physical criteria for assessing the current state of the technical system are revealed. The rationale for using the physical indicator of the functional destabilization of the system is given. The signs of the pre-emergency state of the technical system are considered. A grapho-analytical model for the development of an emergency situation has been developed. The fact of the inevitable increase in the entropy of the system upon its transition to an emergency state is established. Structuring of the system development process in an emergency situation is carried out in three stages. The methodology for estimating the pre-emergency state of complex open systems is presented. The advantages of the proposed approach to managing the state of technical systems in comparison with traditional ones are established.

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Bottlenecks, Modules, and Dynamic Architectural Capabilities

The Oxford Handbook of Dynamic Capabilities ◽

10.1093/oxfordhb/9780199678914.013.011 ◽

2018 ◽

Cited By ~ 4

Author(s):

Carliss Y. Baldwin

Keyword(s):

Property Rights ◽

Value Creation ◽

Technical System ◽

Maximum Effect ◽

Organizational Boundaries ◽

Value Capture ◽

Technical Problems ◽

Technical Architecture ◽

Complex Technical System ◽

Technical Systems

How do firms create and capture value in large technical systems? In this paper, I argue that the points of both value creation and value capture are the system’s bottlenecks. Bottlenecks arise first as important technical problems to be solved. Once the problem is solved, Then the solution in combination with organizational boundaries and property rights can be used to capture a stream of rents. The tools a firm can use to manage bottlenecks are, first, an understanding first of the technical architecture of the system; and, second, an understanding of the industry architecture in which the technical system is embedded. Although these tools involve disparate bodies of knowledge, they must be used in tandem to achieve maximum effect. Dynamic architectural capabilities provide managers with the ability to see a complex technical system in an abstract way and change the system’s structure to manage bottlenecks and modules in conjunction with the firm’s organizational boundaries and property rights.

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