Search results for "ash"
showing 10 items of 1718 documents
A Game Theory Approach and Tariff Strategy for Demand Side Management
2018
Demand side management in smart grid environment with smart meters, renewable energy sources, different kind of consumers etc. is a complex problem. To optimize the problem game theory methodology is used. Game theory approach provide win-win situation between consumers and utilities. Objective of the paper is to find the Nash equilibrium between consumer and utility when utility is supplied through green energy sources. Mathematical modeling of consumption and utilization derived a Nash equilibrium point where consumer and utility both get maximum payoffs. Results shows that energy consumption cost is reduce by applying game theory approach.
A New Aid Modality for Africa: Old Age Cash Transfers
2010
This paper examines the issue of foreign aid and cash transfers to individuals in low-income economies typically found in Africa. Old-age conditional cash transfers and new mobile banking technology can cope with the well-documented problems related to moral hazard and high transaction costs with such policy interactions. Cash transfers can stimulate old and retired individuals’ demand for the consumption goods and services, and thereby affect product prices and wages. Developing economies being characterised by underemployment and gross substitution between consumption and leisure, these transfers can stimulate the labour supply and increase capacity utilisation and the production of labou…
Barriers to Responsible Consumption in e-Commerce : Evidence from Fashion Shoppers
2021
This qualitative study investigates the barriers to responsible consumption in e-commerce from the online shoppers’ viewpoint. The purpose of the study is to increase our understanding of what prevents young adults from making responsible purchases in online stores in the context of fashion retail. The data were collected by interviewing ten Finnish fashion shoppers aged 23-27 years. The findings show that responsible consumption is perceived as complex and challenging. The study identified barriers related to online stores and consumers themselves. Online store implementation (product availability, information and transparency, and pricing) is vital in facilitating online shoppers’ respons…
Mothers’ self-representations and representations of childhood on social media
2023
Funding Information: This work was supported by Kone Foundation, Academy of Finland (#320370), Strategic Research Council (#327237), Strategic Research Council (#327395), Intimacy in Data-driven Culture (IDA). The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Publisher Copyright: © 2023, Minna Kallioharju, Terhi-Anna Wilska and Annamari Vänskä. Purpose: The purpose of this paper is to examine mothers’ social media accounts that focus on children’s fashion. The authors probed children’s fashion photo practices as representations of the mothers’ extended self and the kind of childhood representations produce…
Fuzzy logic approach to predict vehicle crash severity from acceleration data
2015
Vehicle crash is a complex behavior to be investigated as a challenging topic in terms of dynamical modeling. On this aim, fuzzy logic can be utilized to analyze the crash dynamics rapidly and simply. In this paper, the experimental data of the frontal crash is recorded using an accelerometer located at the centre of the gravity of the vehicle. The acceleration signal was the raw data from which the collision intensity expressed by the kinetic energy and the jerk were derived. The fuzzy logic model was then developed from the two inputs namely kinetic energy and jerk. The output variable is the crash severity expressed as the dynamic crash. The result shows that the jerk contributes much to…
Instability of the melt flow in VGF growth with a traveling magnetic field
2009
The linear instability of a thermally stratified melt flow in the VGF configuration driven by a traveling magnetic field (TMF) is considered numerically and experimentally. The dependency of the instability threshold on the governing parameters is found for several cuts through the parameter space covering a wide range of possible applications. In a first approximation the linear instability occurs when the dimensionless TMF forcing parameter reaches the magnitude of the Grashof number. This is particularly true in a medium-sized crucible where the first instability is axisymmetric and sub-critical. As the Grashof number increases the flow develops self-similar boundary layers and the insta…
An efficient proposal for the application of simulated annealing algorithms
2014
Complex nonlinear optimization problems require specific resolution techniques. These problems are often characterized by a solution space that presents many local optima. In these cases, local search algorithms, as the classical descent neighborhood search method, have a heavy drawback: the optimization algorithm generally converges towards a local minimum. To avoid getting trapped in a local minimum, the optimization algorithm must allow to accept worse solutions than the current one. Several kinds of algorithms have been ideated for this purpose and they differ for the acceptance criteria of a pejorative solution. Among such algorithms it is possible to remember the Taboo Search (TS) and…
Instructor Presence in a Virtual Classroom
2021
Abstract Synchronous online learning platforms have been used actively during the COVID-19 period. They have opened possibilities for online learning and interaction, but have also posed new challenges for instructors. This article provides insights into one teacher’s interactions and examines how the instructor presence is expressed in the teachers’ activities in virtual classrooms in higher education. Instructor presence is investigated using the social and teaching presence indicators of the community of inquiry (CoI) framework. Twelve hours of interactions across six online classes were recorded, transcribed, and analysed using content analysis. The findings suggest that indicators of t…
Financial Companies in Latvia: Why are they Coming to the Bond Market?
2019
In the period 2013-2017 Latvian corporate bond market had experienced the abrupt growth of the number of public Latvian corporate bond issues outstanding. The base of the expansion was formed by the financing activity of Latvian financial sector issuers (FSIs) with their weight in the pool of corporate bond issues listed in Nasdaq Riga at 85%. In 2019, FSIs remain the main issuer in Latvian corporate bond market (64% of the number of issues (Nasdaq Baltic, 2019)). The financing needs and preferences of the FSIs not only shape the segment profitability but also build Latvian corporate bond market sustainability. 
 Academic papers provide broad motivation for corporate debt issuing: an e…
The effects of estradiol levels on crossmodal perception: a study on the sound induced flash illusion in healthy and menstrually related migraine ind…
2023
Abstract Objective The sound-induced flash illusion (SIFI) is a valid paradigm to study multisensorial perception. In the “fission” SIFI, multiple flashes are perceived when observing a single flash paired with two or more beeps. SIFI is largely dependent on visual and acoustic cortex excitability; in migraine, dysfunctional cortical excitability affects SIFI perception. Since estrogen peak occurring during ovulation can increase neuronal excitability, the present study aims to verify whether cortical excitability shifts linked to the menstrual cycle could influence SIFI. Methods In a comparative prospective study, we tested the effect of estrogens on crossmodal perception using the SIFI. W…