title: Industrial engineering priorities for improved demand chain performance

authors: Towill, Denis R.

subjects: best practice

abstract: Purpose – The purpose of this paper is to exploit site-based research evidence from a range of value streams so as to prioritise the industrial engineering (IE) foci necessary to move towards the goal of a seamless demand chain. 
Design/methodology/approach – A sample of 40 real-world value streams have been audited to produce codified scores assessing the usage of 12 Simplicity Rules leading to streamlined material flow. The rules are partitioned into “local” (Internal) and “holistic” (External) actions. Exploratory statistics are used to explore the different uptake of these two groups. 
Research limitations/implications – The sample is neither random nor fully representative of all supply chain scenarios. This paper confirms, via site based research, the validity of first actioning the improvements necessary to enable “our process” to deliver efficiently and effectively, in response to internal demands. 
Practical implications – Expending effort into effective engineering of “our process(es)” as first priority offers a double advantage compared to starting at the systems level. Such a strategy generates both competence and confidence. Once this level is achieved the business is in a good position for upgrading the external interfaces. 
Originality/value – This paper shows that modern industrial engineering concepts transpose into two groups of Simplicity Rules, which can move a business forward towards the seamless demand chain goal. The rich field data confirm a logical industrial engineering sequence when enhancing demand chain performance.

text: Industrial engineering priorities for improved demand chain performance Purpose – The purpose of this paper is to exploit site-based research evidence from a range of value streams so as to prioritise the industrial engineering (IE) foci necessary to move towards the goal of a seamless demand chain. 
Design/methodology/approach – A sample of 40 real-world value streams have been audited to produce codified scores assessing the usage of 12 Simplicity Rules leading to streamlined material flow. The rules are partitioned into “local” (Internal) and “holistic” (External) actions. Exploratory statistics are used to explore the different uptake of these two groups. 
Research limitations/implications – The sample is neither random nor fully representative of all supply chain scenarios. This paper confirms, via site based research, the validity of first actioning the improvements necessary to enable “our process” to deliver efficiently and effectively, in response to internal demands. 
Practical implications – Expending effort into effective engineering of “our process(es)” as first priority offers a double advantage compared to starting at the systems level. Such a strategy generates both competence and confidence. Once this level is achieved the business is in a good position for upgrading the external interfaces. 
Originality/value – This paper shows that modern industrial engineering concepts transpose into two groups of Simplicity Rules, which can move a business forward towards the seamless demand chain goal. The rich field data confirm a logical industrial engineering sequence when enhancing demand chain performance.

year: 2011

title: Contractions of 2D 2nd order quantum superintegrable systems and the Askey scheme for hypergeometric orthogonal polynomials

authors: Kalnins, Ernie G.

subjects: Askey scheme

abstract: We show explicitly that all 2nd order superintegrable systems in 2 dimensions are limiting cases of a single system: the generic 3-parameter potential on the 2-sphere, S9 in our listing. We extend the Wigner-Inönü method of Lie algebra contractions to contractions of quadratic algebras and show that all of the quadratic symmetry algebras of these systems are contractions of that of S9. Amazingly, all of the relevant contractions of these superintegrable systems on flat space and the sphere are uniquely induced by the well known Lie algebra contractions of e(2) and so(3). By contracting function space realizations of irreducible representations of the S9 algebra (which give the structure equations for Racah/Wilson polynomials) to the other superintegrable systems, and using Wigner's idea of ''saving'' a representation, we obtain the full Askey scheme of hypergeometric orthogonal polynomials. This relationship directly ties the polynomials and their structure equations to physical phenomena. It is more general because it applies to all special functions that arise from these systems via separation of variables, not just those of hypergeometric type, and it extends to higher dimensions.

text: Contractions of 2D 2nd order quantum superintegrable systems and the Askey scheme for hypergeometric orthogonal polynomials We show explicitly that all 2nd order superintegrable systems in 2 dimensions are limiting cases of a single system: the generic 3-parameter potential on the 2-sphere, S9 in our listing. We extend the Wigner-Inönü method of Lie algebra contractions to contractions of quadratic algebras and show that all of the quadratic symmetry algebras of these systems are contractions of that of S9. Amazingly, all of the relevant contractions of these superintegrable systems on flat space and the sphere are uniquely induced by the well known Lie algebra contractions of e(2) and so(3). By contracting function space realizations of irreducible representations of the S9 algebra (which give the structure equations for Racah/Wilson polynomials) to the other superintegrable systems, and using Wigner's idea of ''saving'' a representation, we obtain the full Askey scheme of hypergeometric orthogonal polynomials. This relationship directly ties the polynomials and their structure equations to physical phenomena. It is more general because it applies to all special functions that arise from these systems via separation of variables, not just those of hypergeometric type, and it extends to higher dimensions.

year: 2013

title: An AR memory app based on Māori mnemonic aids

authors: Taia, Ivy

subjects: computer science

abstract: Traumatic Brain Injury (TBI) is a world-wide “silent epidemic” causing a variety of memory issues for those affected. Although several software approaches aim to aid memory recollection, they are inadequate for many TBI survivors and none address aspects of cultural awareness in New Zealand. We explored design concepts of traditional Māori cultural tools / techniques and how they helped Māori people recall past information. This paper describes our research and development of Maumahara Papahou, a mobile app that uses Augmented Reality features to create a digital memory treasure box based on the concepts of Māori mnemonic aids.

text: An AR memory app based on Māori mnemonic aids Traumatic Brain Injury (TBI) is a world-wide “silent epidemic” causing a variety of memory issues for those affected. Although several software approaches aim to aid memory recollection, they are inadequate for many TBI survivors and none address aspects of cultural awareness in New Zealand. We explored design concepts of traditional Māori cultural tools / techniques and how they helped Māori people recall past information. This paper describes our research and development of Maumahara Papahou, a mobile app that uses Augmented Reality features to create a digital memory treasure box based on the concepts of Māori mnemonic aids.

year: 2018