Studying on Chinese Engineering Design Service Modes

2014 ◽  
Vol 501-504 ◽  
pp. 2632-2637
Author(s):  
Guo Hua Lu ◽  
Bei Bei Zhang ◽  
Hu Cheng

Based on analyzing the characteristics of engineering design enterprises, through investigating 30 Chinese design enterprises ,the present main engineering design service modes are summarized and analyzed, furthermore the backward management philosophy, lack of the efficient information feed back mechanism ,and no enough attention to the accumulation of knowledge are uncovered as the root causes of low innovation ability, the design defects, and extensive management in Chinese design enterprises. Under the great changes taking place in modern market environment, the Chinese engineering design enterprises are required to transform for complying with market demands and the world trend, so the life cycle design service mode is put up with the development strategies for the development of the engineering enterprises.

Author(s):  
Christopher Bryan ◽  
Charles Eubanks ◽  
Kosuke Ishii

Abstract This paper describes a methodology and tool which assist deployment of serviceability in the early stages of life-cycle design. Unlike design for assembly, producability, etc., design for serviceability (DFS) commonly occurs in the later stages of the design process. By this time, any design changes required to enhance serviceability are either costly or infeasible. We have developed a graphics-based computer tool to be used early in the design phase that employs the concept of service mode analysis (SMA), coupled with a service-based design description, to assess the impact of component relationships on life-cycle service costs. We also employ design compatibility analysis (DCA) to assess qualitative aspects of the design for serviceability concerns and provide the user with comments and suggestions for design improvements. Significant reductions in life-cycle costs and significant improvements in customer satisfaction can be achieved by including DFS in the design trade-off analysis process.


Author(s):  
Stephen R. Bradley ◽  
Alice M. Agogino

Abstract The architecture of a multimedia conceptual design aid, the Concept Database, is presented. The goal of the Concept Database is to provide design teams with easy access to information about life cycle design issues for competing design concepts and access to relevant past designs. The architecture builds on our previous experience in developing the multimedia design archival system called Design SCRIBE (Structured Capture and Retrieval Information Base for Engineering Design.) Approaches to selectively retrieving descriptions of design concepts and past designs are summarized.


Author(s):  
XIU-TIAN YAN ◽  
HIROYUKI SAWADA

The problem investigated in this research is that engineering design decision making can be complicated and made difficult by highly coupled design parameters and the vast number of design parameters. This complication often hinders the full exploration of a design solution space in order to generate optimal design solution. These hindrances result in inferior or unfit design solutions generated for a given design problem due to a lack of understanding of both the problem and the solution space. This research introduces a computational framework of a new algebraic constraint-based design approach aimed at providing a deeper understanding of the design problem and enabling the designers to gain insights to the dynamic solution space and the problem. This will enable designers to make informed decisions based on the insights derived from parameter relationships extracted. This paper also describes an enhanced understanding of an engineering design process as a constraint centered design. It argues that with more effort and appreciation of the benefits derived from this constraint-based design approach, engineering design can be advanced significantly by first generating a more quantitative product design specification and then using these quantitative statements as the basis for constraint-based rigorous design. The approach has been investigated in the context of whole product life-cycle design and multidisciplinary design, aiming to derive a generic constraint-based design approach that can cope with life-cycle design and different engineering disciplines. A prototype system has been implemented based on a constraint-based system architecture. The paper gives details of the constraint-based design process through illustrating a worked real design example. The successful application of the approach in two highly coupled engineering design problems and the evaluation undertaken by a group of experienced designers show that the approach does provide the designers with insights for better exploration, enabled by the algebraic constraint solver. The approach thus provides a significant step towards fuller scale constraint-based scientific design.


2020 ◽  
Author(s):  
Iúri Novaes Luna ◽  
Valéria De Bettio Mattos

This book, comprised of 13 chapters, presents papers which discuss the processes related to the career along one’s life cycle, from adolescents’ professional choices until processes of retirement. Notwithstanding the diversity of life and work contexts, present in the different chapters, they all somewhat correspond in their central purpose, presenting both perspectives and challenges related to contemporary career interventions. Some chapters address themes that are still seldom explored in national literature, while others discuss subjects that are long established in the area, however they are innovative. The authors study them in the context of changes in the world of work in the second decade of the 21st century, of the new career models and psychosocial processes that are linked to human development throughout life. The studies and practices in vocational guidance, career development and retirement, included in this book, are the results of research and practice in recent years carried out by professionals, professors and academics that in different ways have collaborated with the activities of LIOP - Laboratory of Information and Professional Guidance, at the Federal University of Santa Catarina.


Author(s):  
Rajesh Kumar ◽  
Seetha Harilal ◽  
Abdullah G. Al-Sehemi ◽  
Githa Elizabeth Mathew ◽  
Simone Carradori ◽  
...  

: COVID-19, an epidemic that emerged in Wuhan, has become a pandemic affecting worldwide and is in a rapidly evolving condition. Day by day, the confirmed cases and deaths are increasing many folds. SARS-CoV-2 is a novel virus; therefore, limited data are available to curb the disease. Epidemiological approaches, isolation, quarantine, social distancing, lockdown, and curfew are being employed to halt the spread of the disease. Individual and joint efforts all over the world are producing a wealth of data and information which are expected to produce therapeutic strategies against COVID-19. Current research focuses on the utilization of antiviral drugs, repurposing strategies, vaccine development as well as basic to advanced research about the organism and the infection. The review focuses on the life cycle, targets, and possible therapeutic strategies, which can lead to further research and development of COVID-19 therapy.


Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 524
Author(s):  
Junhua Xu ◽  
Shuangbao Zhang ◽  
Guofang Wu ◽  
Yingchun Gong ◽  
Haiqing Ren

With the increasing popularity of cross-laminated timber (CLT) constructions around the world, there have been attempts to produce CLT using local wood species in different countries, such as Japanese larch (Larix kaempferi (Lamb.) Carr.) in China. Thus, the need to investigate the connection performance also increases to support the design and construction of CLT buildings using local wood species. In this study, the withdrawal properties of three different types of self-tapping screws (STS), with a diameter of 6 mm, 8 mm, and 11 mm, were tested with Japanese larch CLT. The results revealed that the withdrawal strength of STS increased with increasing density and effective length, but decreased with an increasing diameter. With a density increment of 0.05 g/cm3, the withdrawal strength increased by an average of 9.4%. With an effective length increment of 24 mm, the withdrawal strength increased by an average of 1.4%. An empirical regression model was adopted to predict the withdrawal strength of Japanese larch CLT based on the results, which can be used for potential engineering design of CLT connections using STS.


1995 ◽  
Vol 117 (B) ◽  
pp. 42-47 ◽  
Author(s):  
K. Ishii

Life-cycle engineering seeks to incorporate various product life-cycle values into the early stages of design. These values include functional performance, manufacturability, serviceability, and environmental impact. We start with a survey of life-cycle engineering research focusing on methodologies and tools. Further, the paper addresses critical research issues in life-cycle design tools: design representation and measures for life-cycle evaluation. The paper describes our design representation scheme based on a semantic network that is effective for evaluating the structural layout. Evaluation measures for serviceability and recyclability illustrate the practical use of these representation schemes.


2020 ◽  
Vol 10 (9) ◽  
pp. 3399-3402 ◽  
Author(s):  
Dae-Kyum Kim ◽  
Jennifer J Knapp ◽  
Da Kuang ◽  
Aditya Chawla ◽  
Patricia Cassonnet ◽  
...  

Abstract The world is facing a global pandemic of COVID-19 caused by the SARS-CoV-2 coronavirus. Here we describe a collection of codon-optimized coding sequences for SARS-CoV-2 cloned into Gateway-compatible entry vectors, which enable rapid transfer into a variety of expression and tagging vectors. The collection is freely available. We hope that widespread availability of this SARS-CoV-2 resource will enable many subsequent molecular studies to better understand the viral life cycle and how to block it.


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