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Model of production system with time delay using stochastic bilinear equation

Kenji Shirai, Yoshinori Amano
2015 Asian J of Management Science and Applications  
This study proposes a stochastic bilinear differential equation to model the production process by including a time delay.  ...  The time delay is caused by factors such as variations in workers' skill levels, the delay in delivering materials, and logistical issues.  ...  Lead time is almost always a component of an SCM system. Lead times are involved in product design and development, manufacture, and distribution to suppliers and consumers.  ... 
doi:10.1504/ajmsa.2015.071897 fatcat:drwcp6dym5atjepdswvyf2tnle

Propagating the Fluid Model of Production Processes with Time Delay

Kenji Shirai, Yoshinori Amano Amano
2019 International Journal of Innovative Computing, Information and Control  
In our previous report, the production process was treated as a propagating fluid, and its delay was assumed as a lead time delay.  ...  Process delay may largely reduce the production revenues of a business, particularly in small-and medium-sized enterprises.  ...  To the best of our knowledge, productive processes have not been previously analyzed from this perspective. Production Systems in the Manufacturing Equipment Industry.  ... 
doi:10.24507/ijicic.15.01.91 fatcat:guqzyot2qfghjkdzjwwxhkaf2y

When Is a Preannounced New Product Likely to Be Delayed?

Yuhong Wu, Sridhar Balasubramanian, Vijay Mahajan
2004 Journal of Marketing  
When a product is preannounced, delays in introduction can cause a slew of problems for partner firms and customers. Delays can also hurt the announcing firm.  ...  to delay the product), and (3) the firm's abilities pertaining to product development.  ...  New products are frequently delayed by a lack of coordination both among members of the core product development team and between the product team and functional areas such as marketing and manufacturing  ... 
doi:10.1509/jmkg. fatcat:x2rvaxsr3jcbtdxtbteirh37ha

Reducing Risks and Delays in the Translation of Cell and Gene Therapy Innovations into Regulated Products

Katherine Tsokas, Richard McFarland, Carl Burke, Jessica L. Lynch, Thomas Bollenbach, D. Allen Callaway II, Jay Siegel
2019 NAM Perspectives  
Establishing and maintaining consistency and reliability of raw materials and the product throughout development stages and in the fi nal commercial process is critical and presents a challenge for complex  ...  Thus, comparability for CGT therapy products is a critical aspect of process development and is required to link clinical data throughout progressive phases of product development.  ...  A. Callaway II, and J. Siegel. 2019. Reducing risks and delays in the translation of cell and gene therapy innovations into regulated products. NAM Perspectives.  ... 
doi:10.31478/201909d pmid:34532664 pmcid:PMC8406503 fatcat:pgbawmh2yzaddcuaojasnparyy

The long-stroke MROI vacuum delay lines: from concept to production

Christopher A. Haniff, Roger C. Boysen, David F. Buscher, Martin Fisher, Eugene B. Seneta, Xiaowei Sun, Donald M. A. Wilson, John S. Young, Fernando Santoro
2008 Optical and Infrared Interferometry  
The delay lines are designed to provide 380 metres of vacuum path delay in a single stage, offering rapid star-to-star slews, high throughput and high transmitted wavefront quality.  ...  Details of the final design adopted for these delay lines are presented, together with lessons learnt from successful performance tests of the full-scale prototype trolley in a 20-metre long vacuum test  ...  ACKNOWLEDGEMENTS It is a pleasure to thank Theo ten Brummelaar, Frederic Derie and Robert Ligon for their scrutiny and helpful comments at the delay line Final Design Review.  ... 
doi:10.1117/12.789761 fatcat:viyddzat3zfwraezvn6xbzzwze

Testing considerations for line current differential schemes

Keith Lee, Dale Finney, Normann Fischer, Bogdan Kasztenny
2012 2012 65th Annual Conference for Protective Relay Engineers  
The latter exchange simple on/off (permission or block) signals that can be conveniently checked at the output of a given relay and conveniently forced at the input to a given relay in the scheme.  ...  The paper also describes features of line current differential relays and multiplexers to aid testing.  ...  during the various stages of product design, manufacturing, approval, installation, and operation.  ... 
doi:10.1109/cpre.2012.6201247 fatcat:ruzbkuipozfk7pyxhcbvm6p4z4

The Strategic Perils of Delayed Differentiation

Karan Girotra, Krishnan S. Anand
2007 Social Science Research Network  
Our results-in particular that for a broad range of parameter values, early differentiation is a dominant strategy even under cost parity with delayed differentiation-are robust to these relaxations.  ...  T he value of delayed differentiation (also known as postponement) for a monopolist has been extensively studied in the operations literature.  ...  Acknowledgments The authors thank Gérard Cachon, Xianjun Geng, Martin Lariviere, Serguei Netessine, Erica Plambeck, Dennis Yao, the associate editor, and two anonymous referees for helpful comments that  ... 
doi:10.2139/ssrn.1574130 fatcat:r3orlnrcibdoblercl4vhhnjiu

The Strategic Perils of Delayed Differentiation

Krishnan S. Anand, Karan Girotra
2007 Management science  
Our results, in particular that for a broad range of parameter values early differentiation is a dominant strategy even under cost parity with delayed differentiation, are robust to these relaxations.  ...  The value of delayed differentiation (aka postponement) for a monopolist has been extensively studied in the Operations literature.  ...  Acknowledgments: We would like to thank Gerard Cachon, Xianjun Geng, Martin Lariviere, Serguei Netessine, Erica Plambeck, Dennis Yao, the associate editor and two anonymous referees for helpful comments  ... 
doi:10.1287/mnsc.1060.0655 fatcat:vckpwdwopfdeholdesramfifqa

Competitive advantage through service differentiation by manufacturing companies

Heiko Gebauer, Anders Gustafsson, Lars Witell
2011 Journal of Business Research  
One key finding is that a strong emphasis on service differentiation can lead to a manufacturing firm's strategies for customer centricity being less sensitive to increasingly complex customer needs, which  ...  A survey of 332 manufacturing companies provides the basis for the empirical investigation.  ...  new product design and a new service offer.  ... 
doi:10.1016/j.jbusres.2011.01.015 fatcat:2eqkrqqc7vgapbt4u7ottefofe

Vintage-Differentiated Environmental Regulation

Robert N. Stavins
2005 Social Science Research Network  
Empirical studies validate theoretical predictions that VDRs delay replacement of durable goods, and thereby increase aggregate pollution abatement costs.  ...  Vintage-differentiated regulations (VDRs) are standards that are fixed with respect to the date of entry of regulated units, with later vintages facing more stringent standards.  ...  to avoid changing the rules for facilities that have already been built or products that have already been manufactured, and to focus instead only on new facilities and products.  ... 
doi:10.2139/ssrn.848326 fatcat:d2v5gfqzgffohke63t4l65rrn4

Differential Privacy for Industrial Internet of Things: Opportunities, Applications and Challenges [article]

Bin Jiang, Jianqiang Li, Guanghui Yue, Houbing Song
2021 arXiv   pre-print
In this paper, we conduct a comprehensive survey on the opportunities, applications and challenges of differential privacy in IIoT.  ...  In conclusion, this survey is dedicated to complete comprehensive summary and lay foundation for the follow-up researches on industrial differential privacy.  ...  promote product innovation of manufacturing [168] .  ... 
arXiv:2101.10569v2 fatcat:xwebjbcvcjhbbaehajhdfjocia

Lead markets, innovation differentials and growth

Marian Beise
2005 International Economics and Economic Policy  
They often switch from a domestic innovation design to a foreign innovation design, which increases imports.  ...  Many internationally successful innovations have been adopted first in one country while other countries initially either preferred other designs or an established product.  ...  , product line differentiation and longterm market share (Robinson, Fornell 1985) for a particular innovation design.  ... 
doi:10.1007/s10368-004-0013-x fatcat:yuaampebnzcadjzraqxxtpyecq

Gene silencing byS-adenosylmethionine in muscle differentiation

Andrea Fuso, Rosaria A. Cavallaro, Luigi Orrù, Francesca R. Buttarelli, Sigfrido Scarpa
2001 FEBS Letters  
Here we demonstrate that S-adenosylmethioninesulphate-p-toluenesulphonate (SAM) inhibits myogenin expression and myoblast differentiation by delaying the demethylation of specific CpG in differentiating  ...  We already demonstrated that demethylation dynamics of a specific CpG site in the 5P P-flanking region of myogenin well correlates with gene expression and terminal differentiation.  ...  Given this data, we chose the concentrations of 75 and 150 WM for the following experiments, judging it a good compro- mise and borderline conditions between the inhibition of differentiation and a normal  ... 
doi:10.1016/s0014-5793(01)03030-7 pmid:11728447 fatcat:xqtvtrkmn5ehvgt2frd3reylna

Safety Margins and Design Margins: A Differentiation between Interconnected Concepts

Claudia Eckert, Ola Isaksson
2017 Procedia CIRP  
At the end of the design process, a product might include considerable overdesign, which can increase the initial cost as well as the running cost of many complex systems.  ...  This paper argues that a clearer and common description of design margins can reduce undesired iteration in development processes arising from misconceptions and aggregation effects in the development  ...  Acknowledgements The authors wish to acknowledge Volvo and GKN for funding the research contributing to his paper and Safaa Lebjioui participating in interviews on design margins.  ... 
doi:10.1016/j.procir.2017.03.140 fatcat:zof7akmy7nfqtkakz27dyjpamy

Implementation of Structured ASIC Fabric Using Via-Programmable Differential MCML Cells

Stephane Badel, Ilhan Hatirnaz, Yusuf Leblebici, Elizabeth Brauer
2006 2006 IFIP International Conference on Very Large Scale Integration  
This paper presents a regular layout fabric made of via-programmable MCML universal logic cells for structured ASIC applications and the associated design flow.  ...  The proposed structured ASIC fabric offers very high noise immunity due to the differential operation, as well as low production cost due to the via-programmable properties of the universal logic cell.  ...  COMPARISON OF CELL COUNT AND DELAY OF FFT DESIGNS WITHMCML STRUCTURED ASIC ARRAY AND WITH CMOS CELLS.  ... 
doi:10.1109/vlsisoc.2006.313239 dblp:conf/vlsi/BadelHLB06 fatcat:ni5myxk4yfbrbhfmiwlf57hjju
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