Construction of k-Lipschitz triangular norms and conorms from empirical data

This paper examines the practical construction of k-Lipschitz triangular norms and conorms from empirical data. We apply a characterization of such functions based on k-convex additive generators and translate k-convexity of piecewise linear strictly decreasing functions into a simple set of linear inequalities on their coefficients. This is the basis of a simple linear spline-fitting algorithm, which guarantees k-Lipschitz property of the resulting triangular norms and conorms.

Construction of aggregation functions from data using linear programming

This article examines the construction of aggregation functions from data by minimizing the least absolute deviation criterion. We formulate various instances of such problems as linear programming problems. We consider the cases in which the data are provided as intervals, and the outputs ordering needs to be preserved, and show that linear programming formulation is valid for such cases. This feature is very valuable in practice, since the standard simplex method can be used.

Contextualising learning through the participatory construction of an environmental education programme

Strengthening links between school and community is critical for improving people's participation in environmental issues. However, Mexican education programmes are generally unrelated to rural students' life experience and are planned without considering either teachers' or students' opinions. This article describes the participatory construction of a preparatory school environmental education (EE) programme in Ixtlan de Juarez, a Mexican indigenous community internationally recognised for sustainable forest management. The qualitative research methods used are based on the action research methodology. Results from interviews conducted with the preparatory school's headmaster, the coordinator, and nine teachers provided the needed documentation of the school site for contextualising learning activities. Feedback during focus groups with six students, three teachers, five local communal authorities, and two researchers highlighted that all participants perceived the need for creating an educational programme focused on local forest management. The contents and activities of the programme were designed by the focus group's participants. The programme has been continuously taught by teachers and forest workers since 2005 and was officially integrated with the preparatory school science curriculum in 2006. This participative educational experience has thus transformed the mandatory school curriculum in Ixtlan.

Design and construction of a micropump for drug delivery applications

This paper presents design, construction, and evaluation of a micropump for drug delivery applications. The proposed micropump consists of three components: fluidics, electronics, and software. The fluidics component includes a silicone elastic diaphragm, a microservo, housing and two check valves. The diaphragm is modeled and simulated to establish its geometrical specifications. The housing is built using a rapid prototype machine. The electronics component consists of a microcontroller, a microswitch array, a simple display and a power unit. The software component is written in C and receives inputs from user, controls the microservo speed and displays the programmed speed. A number of experiments are conducted to evaluate the performance and capabilities of the micropump. The experiments focus on measurement of flow rate, dosage and duration of operation. A discussion of the performance and capabilities of the developed micropump is also given.

Construction of optimal prediction intervals for load forecasting problems

Short-term load forecasting is fundamental for the reliable and efficient operation of power systems. Despite its importance, accurate prediction of loads is problematic and far remote. Often uncertainties significantly degrade performance of load forecasting models. Besides, there is no index available indicating reliability of predicted values. The objective of this study is to construct prediction intervals for future loads instead of forecasting their exact values. The delta technique is applied for constructing prediction intervals for outcomes of neural network models. Some statistical measures are developed for quantitative and comprehensive evaluation of prediction intervals. According to these measures, a new cost function is designed for shortening length of prediction intervals without compromising their coverage probability. Simulated annealing is used for minimization of this cost function and adjustment of neural network parameters. Demonstrated results clearly show that the proposed methods for constructing prediction interval outperforms the traditional delta technique. Besides, it yields prediction intervals that are practically more reliable and useful than exact point predictions.

Westphalia and the Taiwan conundrum : a case against the exclusionist construction of sovereignty and identity

It is often argued that at the root of the Taiwan question are the myriad differences in politics, ideology, identity, and economy between mainland China and Taiwan. Any prospect for its peaceful resolution, it seems, hinges on bridging those differences through economic and/or political integration. Although the Taiwan conundrum has much to do with wide-ranging cross-strait divergence, this article argues that it cannot be disconnected from one important commonality between Beijing and Taipei, namely, a cross-strait normative convergence on the Westphalian notion of state sovereignty. Encompassing an exclusionary understanding of final authority, territory, and identity, Westphalian sovereignty provides both Beijing and Taipei with a common meaning that Taiwan is an issue of sovereignty, central to their respective national identity and political survival and hence not subject to compromise. As a consequence, it argues that this common meaning is paradoxically responsible for much of the mistrust, tension, and deadlock in cross-strait relations. In order to find a long-term solution to the Taiwan impasse, we need to pay attention to this particular normative convergence as well as to the many differences across the Taiwan Strait.

The social construction of leadership education

Most leadership theories assume that leadership is a quality of leaders (e.g., trait theory), or a response to environments (e.g., situational theory), or a combination of both (e.g., contingency theory). In all these approaches leadership is something knowable and definite. However, after years of research there is no agreed definition of what leadership is or any universal agreement about who might be regarded a leader. This paper outlines an alternative approach in which leadership is a contested construct and describes two engaging teaching techniques that align pedagogic approach with the underlying theory. In doing so this paper makes a case for the adoption of socially-constructed theories in leadership education

Story-telling and policy making : the construction of university entrance problems in Australia

This paper is a study of the politics of policy making within the context of Australian university entrance policy. It argues that policy making is more concerned with the social construction of policy problems than with their resolution and that in this respect the problem-solving image of policy making is flawed. Additionally, the paper explores the ways in which policy problems are constructed and how competing stories are resolved within policy making. The paper concludes that in this case such stories of university entrance were absorbed within the government's agenda for reform through the use of participative processes restricted to the consideration of best solutions rather than particular problems.

Computation and construction of vault geometry prototypes

Physical models and scaled prototypes of architecture play an important role in design. They enable architects and designers to investigate the formal, functional, and material attributes of the design. Understanding digital processes of realizing scaled prototypes is a significant problem confronting design practice. This paper reports on three approaches to the translation of Gaussian surface models into scaled physical prototype models. Based on the geometry of Eladio Dieste’s Gaussian Vaults, the paper reports on the aspects encountered in the process of digital to physical construction using scaled prototypes. The primary focus of the paper is on computing the design geometry, investigating methods for preparing the geometry for fabrication and physical construction. Three different approaches in the translation from digital to physical models are investigated: rapid prototyping, two-dimensional surface models in paper and structural component models using CNC fabrication. The three approaches identify a body of knowledge in the design and prototyping of Gaussian vaults. Finally the paper discusses the digital to fabrication translation processes with regards to the characteristics, benefits and limitations of the three approaches of prototyping the ruled surface geometry of Gaussian Vaults. The results of each of three fabrication processes allowed for a better understanding of the digital to physical translation process. The use of rapid prototyping permits the production of form models that provide a representation of the physical characteristics such as size, shape and proportion of the Gaussian Vault.

Students' construction of a virtual museum for multimodal meaning-making : the case of a pilot intervention

This paper evaluates a pilot design research intervention of 12-13 year old Secondary (Middle) students in Singapore constructing a virtual museum within an English Language (EL) curriculum which seeks to engage students through the infusion of authentic, rich multimodal stimuli. 78 students from two classes designed the layout of museum galleries based on their chosen themes, sourced and created multimodal artifacts , and presented their proposals and galleries to an imagined external audience and their peers. The research design and methodology, processes and factors driving the design and implementation of the project are described. Feedback from teachers and students on the benefits and limitations of the study are elicited through semi-constructed interviews, surveys and questionnaire forms. Recommendations to overcome problems identified are proposed.