Results 21 to 30 of about 4,271,942 (321)

A Two-Stage Method to Determine Optimal Product Sampling considering Dynamic Potential Market

open access: yesThe Scientific World Journal, 2015
This paper develops an optimization model for the diffusion effects of free samples under dynamic changes in potential market based on the characteristics of independent product and presents a two-stage method to figure out the sampling level. The impact
Zhineng Hu, Wei Lu, Bing Han
doaj   +1 more source

Collaboration Skills in Educational Robotics: A Methodological Approach—Results from Two Case Studies in Primary Schools

open access: yesEducation Sciences, 2023
This study proposes a methodological approach that allows educational robotics to be used in order to develop collaboration skills in educational settings.
Emmanouil A. Demetroulis   +4 more
doaj   +1 more source

Graphics for uncertainty [PDF]

open access: yes, 2019
Graphical methods such as colour shading and animation, which are widely available, can be very effective in communicating uncertainty. In particular, the idea of a ‘density strip’ provides a conceptually simple representation of a distribution and this ...
Bowman A. W.   +8 more
core   +1 more source

A Dynamical Innovation Diffusion Model with Fuzzy Coefficient and Its Application to Local Telephone Diffusion in China

open access: yesDiscrete Dynamics in Nature and Society, 2013
This paper studies the innovation diffusion problem with the affection of urbanization, proposing a dynamical innovation diffusion model with fuzzy coefficient, and uses the shifting rate of people from rural areas stepping into urban areas to show the ...
Zhigao Liao, Jiuping Xu, Liming Yao
doaj   +1 more source

Generalized uncertainty relations [PDF]

open access: yes, 2015
The standard uncertainty relations (UR) in quantum mechanics are typically used for unbounded operators (like the canonical pair). This implies the need for the control of the domain problems. On the other hand, the use of (possibly bounded) functions of
Herdegen, Andrzej, Ziobro, Piotr
core   +2 more sources

On Uncertainty [PDF]

open access: yesKronos, 2018
There is some uncertainty written into the form of this paper because, while it seeks to use scholarly procedures in engaging with the philosophical questions provoked by Ludwig Wittgenstein's late speculative essay On Certainty, it arose out of my research toward a theatrical interpretation of that work.
openaire   +3 more sources

Radial Basis Function Neural Network with Particle Swarm Optimization Algorithms for Regional Logistics Demand Prediction

open access: yesDiscrete Dynamics in Nature and Society, 2014
Regional logistics prediction is the key step in regional logistics planning and logistics resources rationalization. Since regional economy is the inherent and determinative factor of regional logistics demand, it is feasible to forecast regional ...
Zhineng Hu, Yixin Zhang, Liming Yao
doaj   +1 more source

A Survey of Methods for Gas-Lift Optimization

open access: yesModelling and Simulation in Engineering, 2012
This paper presents a survey of methods and techniques developed for the solution of the continuous gas-lift optimization problem over the last two decades. These range from isolated single-well analysis all the way to real-time multivariate optimization
Kashif Rashid   +2 more
doaj   +1 more source

Heisenberg's uncertainty principle [PDF]

open access: yes, 2006
Heisenberg's uncertainty principle is usually taken to express a limitation of operational possibilities imposed by quantum mechanics. Here we demonstrate that the full content of this principle also includes its positive role as a condition ensuring ...
Busch, Paul   +2 more
core   +3 more sources

An Assessment of the Effectiveness of the Remedial Teaching Education Policy

open access: yesKnowledge, 2023
The remedial teaching policy is a flagship education policy of the Greek Ministry of Education that aims to create a school of equal opportunities by providing additional support to students from disadvantaged social backgrounds. In this work we utilised
Ilias Papadogiannis   +5 more
doaj   +1 more source

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