Search results for "Slack"

Measurement uncertainty impact on simplified load flow analysis in MV smart grids

2018

This work is focused on the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. In more detail, the paper presents the uncertainty evaluation of a simplified load flow algorithm, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). To reduce the costs of the monitoring system, the load flow algorithm makes use of LV load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on the algorithm input quantities (load powers and slack b…

2014

This paper is concerned with the problem of general output feedback stabilization for fractional order linear time-invariant (FO-LTI) systems with the fractional commensurate order0<α<2. The objective is to design suitable output feedback controllers that guarantee the stability of the resulting closed-loop systems. Based on the slack variable method and our previous stability criteria, some new results in the form of linear matrix inequality (LMI) are developed to the static and dynamic output feedback controllers synthesis for the FO-LTI system with0<α<1. Furthermore, the results are extended to stabilize the FO-LTI systems with1≤α<2. Finally, robust output feedback control…

Energy efficiency in the European Union: What can be learned from the joint application of directional distance functions and slacks-based measures?

2014

Abstract Over the last few years concerns have increased about the energy mix in many countries. These concerns have been of greater magnitude for countries with a common energy regulation such as European Union (EU) member states. An important aspect to take into account when choosing a given energy mix is the efficiency involved in its generation. In this context, the present study analyzes the efficiency with which electricity and derived heat was produced in 25 EU member states over the last decade. This analysis considers not only the inputs and outputs involved but, more importantly, which undesirable by-products were generated during the production process, a relevant issue for EU cl…

Improvisation for innovation: The contingent role of resource and structural factors in explaining innovation capability

2018

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link. This paper focuses on resource and structural factors to explore the relationship between organizational improvisation and innovation capability. Although the role of improvisation has attracted increasing academic attention in fast-changing environments, little is known about the conditions under which firms benefit from improvisation. This paper addresses this gap using an organizational learning perspective that explains the role of a firm's organizational structure and organizational resources for improvisation and innovation. A large-scale …

Alliance portfolio diversity, organizational slack, and firm performance

2013

In this paper we analyze whether and how the availability of internal resources in the form of slack influences a firm ability to deal with partner diversity in its alliance portfolio. Alliances with diverse partners provide access to a broader pool of complementary resources, but they also entail significant coordination costs. In this context, we argue that slack acts as a doubleedged sword that can either facilitate or hinder the management of interdependencies among different alliance projects. Accordingly, we further argue that the net impact of slack will depend on the firm’s experience in dealing with the challenges posed by portfolio diversity. Empirical analysis on a sample of firm…

Uzņēmuma klientu pārvaldības sistēmas pilnveidošana

2019

“Uzņēmuma klientu pārvaldības sistēmas pilnveidošana” ietver klientu pārvaldības sistēmas uzlabojumus ar tās integrāciju ziņapmaiņas vietnē “Slack”. Izmantojot “Slack” komandas, uzņēmuma darbinieki var ātri, ērti un uzskatāmi iegūt informāciju vai veikt darbības, kuru veikšanai iepriekš būtu nepieciešama programmēšanas inženieru iejaukšanās. Uzņēmuma klientu daudzumam strauji augot, radās nepieciešamība pēc rīka, kas ļautu veikt šīs darbības arī bez tehniskām zināšanām. Programmatūra ir izstrādāta ar Python 2, lietojot Tornado ietvaru. Ziņojumu uzglabāšana notiek ar AWS SQS.

Contribution à l'étude du slack organisationnel : le cas des dépenses d'investissements dans une grande entreprise industrielle

2012

Contribution to the Study of the Organizational Slack : The Case of Investment Expenditure in a Big Industrial Company This paper contributes to research on organizational slack. The slacks integrated into capital expenditure have been little studied. The economic crisis in 2008-2009 represents a good opportunity to analyze these slacks. A longitudinal case study has been carried out in an industrial company from 2006 to 2010