Filtration and Reservoir Design Practice for Construction Machinery Hydraulic Circuits - A State of the Art Review

1963 ◽  
Author(s):  
T. I. Monroe
Keyword(s):  
State Of The Art ◽  
Design Practice ◽  
Construction Machinery ◽  
Reservoir Design ◽  
Hydraulic Circuits

Prediction of Failure in Ductile Machine Elements Operating at Elevated Temperatures

1976 ◽  
Vol 98 (3) ◽  
pp. 1062-1065
Author(s):  
G. M. Kurajian ◽  
T. Y. Na
Keyword(s):  
Elevated Temperatures ◽  
State Of The Art ◽  
Design Practice ◽  
Ductile Metals ◽  
Ductile Materials ◽  
Machine Element ◽  
Distortion Energy ◽  
Machine Elements ◽  
Sound Theoretical Basis ◽  
Good Agreement

This paper provides the designer with formulations and data so that he can more confidently design a ductile machine element, operating at elevated temperatures, by employing obtainable strength data at those temperatures. The paper begins by taking a panoramic view of the state of the art regarding a procedure for designing such elements, under such conditions, on the basis of stress vs. strength. Then, the paper combines the basic principle of the distortion-energy theory of failure, long recognized as the best theory of failure for ductile materials by well documented experiments, with thermodynamic behavioral and mechanical properties. This combination and accompanying study result in formulation, information and data so that the validity of the aforementioned design practice is given a sound theoretical basis. Specific applications are taken for various categories of steel with very good agreement between the theory and experimental data. However, with necessary data, the procedure can be applied to other ductile metals as well.

Towards intelligent systems for boiler design

1997 ◽  
Vol 211 (5) ◽  
pp. 399-409 ◽  
Author(s):  
S Lu
Keyword(s):  
Artificial Intelligence ◽  
Neural Networks ◽  
Fuzzy Logic ◽  
Intelligent Systems ◽  
State Of The Art ◽  
Knowledge Based Systems ◽  
Design Practice ◽  
Knowledge Based ◽  
Computer Aided ◽  
Boiler Design

This paper describes the application, through examples and comparisons, of artificial intelligence including neural networks, fuzzy logic, genetic algorithms in three levels of computer aided boiler design: design by mathematical modelling, design by optimization and design by knowledge-based systems. It reviews the state-of-the-art situation and trends for future development in boiler design practice.

scholarly journals Developing fire safety engineering as a practice in Canada

2018 ◽  
Vol 45 (7) ◽  
pp. 527-536
Author(s):  
Hailey Quiquero ◽  
Matthew Smith ◽  
John Gales
Keyword(s):  
Fire Safety ◽  
State Of The Art ◽  
Literary Study ◽  
Safety Engineering ◽  
Design Practice ◽  
Skill Sets ◽  
Fire Safety Engineering ◽  
Societal Needs ◽  
Protection Goals ◽  
Fire Design

The goal of fire safety engineering (FSE) is to design a strategy that meets human safety and property protection goals with an optimized solution. In comparison to international practice, Canada could be considered highly underdeveloped in a technical perspective of performance versus prescription. In Canada, FSE is a subdivision within civil and mechanical engineering, rather than treated as a profession in and of itself. With a requirement for more complex infrastructure to meet Canadian societal needs, there is stimulus that is fostering a demand to create professionals educated with FSE skill sets. This literary study therefore aims to present a state-of-the-art review of the design practice of FSE in Canada and abroad with explicit focus on performance-based fire design for the Canadian practitioner who seeks to develop their expertise in this subject.

Mass Customization: A Review of the Paradigm Across Marketing, Engineering and Distribution Domains

2010 ◽  
Author(s):  
Scott Ferguson ◽  
Andrew Olewnik ◽  
Priyesh Malegaonkar ◽  
Phil Cormier ◽  
Saket Kansara
Keyword(s):  
Mass Customization ◽  
State Of The Art ◽  
Specific Information ◽  
Design Practice ◽  
Process Innovations ◽  
Lack Of Information ◽  
Two Factors ◽  
Development Approach ◽  
Dominant Paradigm ◽  
The Ideal

Introduced nearly 25 years ago, the paradigm of mass customization (MC) has largely not lived up to its promise. Despite great strides in information technology, engineering design practice, and manufacturing production, the necessary process innovations that can produce products and systems with sufficient customization and economic efficiency have yet to be found in wide application. In this paper, the state-of-the-art in MC is explored in order to answer the question of “why not?” and to highlight areas for specific research in the MC paradigm. To establish perspective for this work, we consider MC to be a product development approach which allows for the production of goods — after a customer places an order — which minimize the tradeoff between the ideal product and the available product by fulfilling the needs and preferences of individuals functionally, emotionally and anthropologically. Results of this research were generated by reviewing 88 papers from various journals that span three domains of interest (marketing, engineering, and distribution) and explore proposed methodologies, specific information inputs and outputs, proposed metrics, and barriers toward the implementation of MC. Qualitatively, we show that the lack of MC in application is due to two factors: 1) a lack of marketing tools capable of capturing individual needs that can be mapped to the technical space; and 2) a lack of information relation mechanisms that connect the domains of marketing, engineering, and distribution. In the end it is our belief that MC is realizable and that eventually it will emerge as a dominant paradigm in the design and delivery of products and systems. However, pursuing the opportunities for research presented in this work will hopefully speed this emergence.

scholarly journals Cognitive Ergonomics of Formgiving as Unstructured Approaches in Furniture Design Practice

2021 ◽  
Vol 6 (SI5) ◽  
pp. 27-32
Author(s):  
Mohd Hasni Chumiran ◽  
Shahriman Zainal Abidin ◽  
Wan Nuraini Rahim ◽  
Verly Veto Vermol
Keyword(s):  
State Of The Art ◽  
Publishing House ◽  
Verbal Protocol ◽  
Design Practice ◽  
Furniture Design ◽  
Verbal Protocol Analysis ◽  
Art Interpretation ◽  
Cognitive Ergonomics ◽  
International Publishing ◽  
Open Access Article

This paper discusses how designers formulate ideas through unstructured approaches in furniture design. The problem arose from a logical analysis of the strategies, methods, and hermeneutics in designing within the state-of-the-art interpretation principle. The goal is to understand how designers interpret the visual concept of subjectivity. In the designers’ cognitive ergonomics, verbal protocol analysis approaches methodologically analyzed. The 15-minute memorizing-based videotapes observe the designer reflection using several form properties, namely a characteristic of the uncertain objects has practiced. The findings showed the embodiment of metaphorical forms for designers to visualize unstructured visual forms as significant tangible forms. Keywords: Cognitive ergonomics; formgiving; furniture design; visual protocol  eISSN: 2398-4287© 2021. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v6iSI5.2927

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

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