A study on the mechanisms of change propagation in mechanical design

2021 ◽  
pp. 1-22
Author(s):  
Arindam Brahma ◽  
David C. Wynn
Keyword(s):  
Mechanical Design ◽  
Mechanisms Of Change ◽  
Future Research ◽  
Change Propagation ◽  
Future Change ◽  
Design Task ◽  
Engineering Design Process ◽  
Design Changes ◽  
Improved Methods ◽  
Insight Into

Abstract Design changes and change propagation have been recognised as ubiquitous in the engineering design process. But why are some design changes propagated while others are absorbed? This paper reports on a study to investigate the specific properties of a mechanical design that influence whether a change is either propagated or absorbed. Student participants in the study were asked to complete a well-defined mechanical design task and then to introduce several design changes. Analysis of the recorded design processes reveals new insight into the mechanisms of change propagation in terms of properties of the design. The insights suggest avenues for future research to make designs more tolerant to potential future change and to develop improved methods to predict change propagation.

scholarly journals Surveying 80 Years of Psychodrama Research: A Scientometric Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Mengyu Lim ◽  
Alessandro Carollo ◽  
S. H. Annabel Chen ◽  
Gianluca Esposito
Keyword(s):  
Mechanisms Of Change ◽  
Future Research ◽  
Scientometric Analysis ◽  
Adoption Of Technology ◽  
Keyword Analysis ◽  
Psychological Conditions ◽  
Fields Of Study ◽  
Technological Methods ◽  
Research Domains ◽  
Insight Into

Almost a century after Jacob Levy Moreno pioneered the group practice of psychodrama, research in this area has flourished to include different sub-fields of study and psychodramatic intervention for various psychological conditions. By making use of scientometric analysis, particularly document citation analysis and keyword analysis, this study maps out dominant research domains in psychodrama since its inception. From these findings, projections of future research trends and an evaluation of psychodrama research are discussed. Generally, there has been an increased adoption of technology to facilitate psychodrama practice, along with an increasing integration of psychodramatic principles with other psychotherapies. To improve research in this area, this paper recommends greater transparency in the reporting of materials, processes and data used in publications. Finally, we encourage embracing new technological methods such as neuroimaging to provide greater insight into mechanisms of change in psychodrama. The field of psychodrama remains full of potential and innovations to be developed.

Towards Interconnected Blockchains

2021 ◽  
Vol 54 (7) ◽  
pp. 1-39
Author(s):  
Ankur Lohachab ◽  
Saurabh Garg ◽  
Byeong Kang ◽  
Muhammad Bilal Amin ◽  
Junmin Lee ◽  
...  
Keyword(s):  
State Of The Art ◽  
The State ◽  
Future Research ◽  
Missing Link ◽  
Layered Architecture ◽  
Blockchain Technology ◽  
Wide Scale ◽  
Effective Development ◽  
Insight Into ◽  
Game Changer

Unprecedented attention towards blockchain technology is serving as a game-changer in fostering the development of blockchain-enabled distinctive frameworks. However, fragmentation unleashed by its underlying concepts hinders different stakeholders from effectively utilizing blockchain-supported services, resulting in the obstruction of its wide-scale adoption. To explore synergies among the isolated frameworks requires comprehensively studying inter-blockchain communication approaches. These approaches broadly come under the umbrella of Blockchain Interoperability (BI) notion, as it can facilitate a novel paradigm of an integrated blockchain ecosystem that connects state-of-the-art disparate blockchains. Currently, there is a lack of studies that comprehensively review BI, which works as a stumbling block in its development. Therefore, this article aims to articulate potential of BI by reviewing it from diverse perspectives. Beginning with a glance of blockchain architecture fundamentals, this article discusses its associated platforms, taxonomy, and consensus mechanisms. Subsequently, it argues about BI’s requirement by exemplifying its potential opportunities and application areas. Concerning BI, an architecture seems to be a missing link. Hence, this article introduces a layered architecture for the effective development of protocols and methods for interoperable blockchains. Furthermore, this article proposes an in-depth BI research taxonomy and provides an insight into the state-of-the-art projects. Finally, it determines possible open challenges and future research in the domain.

The Application of the Blockchain Technology in Voting Systems

2021 ◽  
Vol 54 (3) ◽  
pp. 1-28
Author(s):  
Jun Huang ◽  
Debiao He ◽  
Mohammad S. Obaidat ◽  
Pandi Vijayakumar ◽  
Min Luo ◽  
...  
Keyword(s):  
Research Agenda ◽  
Future Research ◽  
Voting Systems ◽  
Comprehensive Review ◽  
Formal Expression ◽  
Future Research Agenda ◽  
Blockchain Technology ◽  
Peer Network ◽  
Peer To Peer Network ◽  
Insight Into

Voting is a formal expression of opinion or choice, either positive or negative, made by an individual or a group of individuals. However, conventional voting systems tend to be centralized, which are known to suffer from security and efficiency limitations. Hence, there has been a trend of moving to decentralized voting systems, such as those based on blockchain. The latter is a decentralized digital ledger in a peer-to-peer network, where a copy of the append-only ledger of digitally signed and encrypted transactions is maintained by each participant. Therefore, in this article, we perform a comprehensive review of blockchain-based voting systems and classify them based on a number of features (e.g., the types of blockchain used, the consensus approaches used, and the scale of participants). By systematically analyzing and comparing the different blockchain-based voting systems, we also identify a number of limitations and research opportunities. Hopefully, this survey will provide an in-depth insight into the potential utility of blockchain in voting systems and device future research agenda.

scholarly journals A Conceptual Framework and Propositions for the Acceptance of Mobile Services

2007 ◽  
Vol 2 (2) ◽  
pp. 61-73 ◽  
Author(s):  
Sally Rao ◽  
Indrit Troshani
Keyword(s):  
Mobile Services ◽  
User Acceptance ◽  
Future Research ◽  
Research Directions ◽  
Consumer Adoption ◽  
Business Opportunities ◽  
Managerial Implications ◽  
Lead Users ◽  
Future Research Directions ◽  
Insight Into

Mobile services are heralded to create a tremendous spectrum of business opportunities. User acceptance of these services is of paramount importance. Consequently, a deeper insight into theory-based research is required to better understand the underlying motivations that lead users to adopting mobile services. As mobile services bring additional functional dimensions, including hedonic and experiential aspects, using extant models for predicting mobile services acceptance by individuals may be inadequate. The aim of this paper is to explore, analyse and critically assess the use of existing acceptance theories in the light of the evolving and ubiquitous mobile services and their underlying technologies. Constructs affecting consumer adoption behaviour are discussed and relevant propositions are made. Managerial implications are explored and future research directions are also identified.

Predictabilty of Change in Engineering: A Complexity View

2005 ◽  
Author(s):  
Claudia Eckert ◽  
John Clarkson ◽  
Chris Earl
Keyword(s):  
Empirical Studies ◽  
Change Propagation ◽  
Design Change ◽  
Design Changes ◽  
Action Model ◽  
Static Background

Design changes can be surprisingly complex. We examine the problems they cause and discuss the problems involved in predicting how changes propagate, based on empirical studies. To assist this analysis we distinguish between (a) a static background of connectivities (b) descriptions of designs, processes, resources and requirements and (c) the dynamics of design tasks acting on descriptions. The background might consist of existing designs and subsystems, or established processes used to create them. The predictability of design change is examined in terms of this model, especially the types and scope of uncertainties and where complexities arise. An industrial example of change propagation is presented in terms of the background (connectivity) - description - action model.

Exploring Effective Change Propagation in a Product Family Design

2017 ◽  
Vol 139 (12) ◽  
Author(s):  
Inayat Ullah ◽  
Dunbing Tang ◽  
Qi Wang ◽  
Leilei Yin
Keyword(s):  
Product Family ◽  
Design Structure Matrix ◽  
Change Propagation ◽  
Effective Change ◽  
Design Structure ◽  
Design Changes ◽  
Requirements Change ◽  
Change Impact ◽  
Design Requirements

Product family (PF) design is a widely used strategy in the industry, as it allows meeting diverse design requirements. Change propagation in any PF is difficult to predict. Consequently, while numerous design change management methodologies presently exist, their application is restricted to a single artifact. This issue is overcome in the present study. The proposed framework explores effective change propagation paths (CPPs) by considering the risks associated with design changes in the PF with the aim of minimizing the overall redesign cost. The propagated risk, which would result in rework, is quantified in terms of change impact and propagation likelihood. Moreover, a design structure matrix (DSM) based mathematical model and an algorithm for its implementation are proposed to investigate the change propagation across the PF. Finally, to demonstrate their effectiveness, a PF of electric kettles is examined in a case study. The study findings confirm that the proposed technique is appropriate for evaluating different CPPs in PF.

Export von (Militär-)Musikinstrumenten von Berlin nach Zentral- und Südamerika um 1900

2021 ◽  
Vol 74 (4) ◽  
pp. 308-317
Author(s):  
Christian Breternitz
Keyword(s):  
South America ◽  
Musical Instruments ◽  
Future Research ◽  
Sheet Music ◽  
International Context ◽  
Military Bands ◽  
Musical Taste ◽  
Insight Into

The article outlines the significance of Prussian military music of the 19th and early 20th centuries in an international context. It focuses on deliveries of musical instruments and sheet music by the Berlin company C. W. Moritz to Central and South America around 1900. The delivery lists of 1897/98 for the Colombian military bands show that they were equipped according to the Prussian model, which goes back to the ideas of Wilhelm Wieprecht. He reformed and standardised the Prussian military music system between the 1830s and 1860s, thus creating the basis for its success. The sheet music enclosed with the musical instruments gives an insight into the popular musical taste of the period around 1900, which was increasingly introduced to Central and South America. Future research will ask what impact such imports of music and musical instruments had on the development of music in Central and South America. (Vorlage)

scholarly journals Individual goals and social preferences in operational decisions

2019 ◽  
Vol 39 (1) ◽  
pp. 116-137 ◽  
Author(s):  
Nienke Hofstra ◽  
Wout Dullaert ◽  
Sander De Leeuw ◽  
Eirini Spiliotopoulou
Keyword(s):  
Decision Making ◽  
Social Preferences ◽  
Operational Planning ◽  
Future Research ◽  
Monetary Incentives ◽  
Content Type ◽  
Planning Decisions ◽  
Multiple Data ◽  
Human Decision ◽  
Insight Into

Purpose The purpose of this paper is to develop propositions explaining the influence of individual goals and social preferences on human decision making in transport planning. The aim is to understand which individual goals and social preferences planners pursue and how these influence planners’ decisions. Design/methodology/approach Propositions are developed based on investigation of decision making of transport planners in a Dutch logistics service provider using multiple data collection methods. Findings The study shows how decision making of transport planners is motivated by individual goals as well as social preferences for reciprocity and group identity. Research limitations/implications Further research including transaction data analysis is needed to triangulate findings and to strengthen conclusions. Propositions are developed to be tested in future research. Practical implications Results suggest that efforts to guide planners in their decision making should go beyond traditional (monetary) incentives and consider their individual goals and social preferences. Moreover, this study provides insight into why transport planners deviate from desired behaviour. Originality/value While individual decision making plays an essential role in operational planning, the factors influencing how individuals make operational planning decisions are not fully understood.

Mechanisms of Change in Dialectical Behaviour Therapy

2017 ◽  
pp. 514-532
Author(s):  
Tali Boritz ◽  
Richard J. Zeifman ◽  
Shelley F. McMain
Keyword(s):  
Attentional Control ◽  
Research Evidence ◽  
Coping Skills ◽  
Mechanisms Of Change ◽  
Future Research ◽  
Clinical Implications ◽  
Adaptive Coping ◽  
Behaviour Therapy ◽  
Dialectical Behaviour Therapy ◽  
Client Change

Research on processes and mechanisms of change aim to explain how and why an intervention leads to change. Despite some theoretical and empirical progress in understanding processes and mechanisms of change in Dialectical Behaviour Therapy (DBT), this remains an understudied area in the DBT literature. This chapter considers how DBT conceptualizes the etiology and maintenance of dysfunction, and how active ingredients in DBT treatment produce client change. It proposes four key mechanisms of change that have been a focus of scientific efforts in DBT research: (1) increased awareness and acceptance of emotion; (2) increased attentional control; (3) increased ability to modulate emotion; and (4) increased use of adaptive coping skills. Next, it reviews the research evidence to support these putative mechanisms of change. Finally, it discusses clinical implications of this research, and propose recommendations for future research on mechanisms of change in DBT.

The Mechanical Design of Large Turbogenerators

1987 ◽  
Vol 201 (2) ◽  
pp. 91-103
Author(s):  
B A Marlow
Keyword(s):  
High Speed ◽  
Mechanical Design ◽  
Rotating Machinery ◽  
Design Problems ◽  
Detail Design ◽  
Insight Into

Experience shows that the reliability of large turbogenerators depends substantially on the quality of detail design, particularly the quality of the mechanical design. In addition to the design problems common to all high-speed rotating machinery, the mechanical design of generators must take account of certain electrical requirements. This paper gives an insight into the detail mechanical design of large turbogenerators paying particular attention to the interaction of electrical requirements on the mechanical design.

Sign in / Sign up

Export Citation Format

Share Document