Role of Deterministic Electromechanical Conversion for Short-Term Fluctuations in Wind Power: A Case Study in Japan

2019 ◽  
Vol 12 (3) ◽  
Author(s):  
Fredrik Raak ◽  
Yoshihiko Susuki ◽  
Shinya Eguchi ◽  
Takashi Hikihara
Keyword(s):  
Wind Power ◽  
Short Term ◽  
Electromechanical Conversion

Purchasing behaviour and supplier base evolution – a longitudinal case study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anna Dubois ◽  
Lars-Erik Gadde ◽  
Lars-Gunnar Mattsson
Keyword(s):  
Design Methodology ◽  
Longitudinal Case Study ◽  
Short Term ◽  
Supplier Relationships ◽  
Content Type ◽  
Research Findings ◽  
Purchasing Behaviour ◽  
Time Periods

Purpose The purpose of the paper is to describe and analyse the evolution of the supplier base of a buying firm and the reasons behind these changes. Design/methodology/approach The paper is based on a case study of the changes over 52 years in a sub-set of the supplier base of a firm manufacturing fork-lifts. Findings The study shows that some relationships feature substantial longevity. However, the duration of one-third of the total relationships is shorter than five years. There was considerable variation over time in the dynamics of the supplier base in terms of entries and exits of suppliers. Owing to this variation, research findings and conclusions in short-term studies are heavily dependent on the specific conditions at the time of the study. Finally, no less than one-fourth of the terminated supplier relationships were reactivated later. Research limitations/implications The study was designed in a time when purchasing was considered entirely from the perspective of the buying firm. Further studies, therefore, must increasingly emphasise the role of suppliers and the interaction in the buyer–supplier relationships, as well as the embeddedness in networks. Originality/value The findings of the study are unique in two ways. First, they are based on systematic observations over more than 50 years. Second, the study involves the purchases of 11 components representing different technical and economic features. The (few) previous studies are based on much shorter time periods and involves fewer suppliers/components. Moreover, the findings regarding re-activation of terminated relationships represent unique contributions.

Disaster Management and Continuity Planning in Libraries

2016 ◽  
Vol 5 (1) ◽  
pp. 26-41 ◽  
Author(s):  
Rebecca Hamilton ◽  
Diane Brown
Keyword(s):  
Success Factor ◽  
Short Term ◽  
Continuity Planning ◽  
Critical Success ◽  
Business Operations ◽  
Asset Recovery ◽  
Disaster Preparation

Libraries are taking on new roles in a disaster and with that comes strategic responsibilities beyond traditional asset recovery activities. In the past, library disaster plans have emphasized recovery of materials. Here, the emphasis is on continuing business operations. Libraries have become the centers of communication for their communities in a crisis. This article will demonstrate the essential role of libraries before, during and after a disaster, both short term and long term and how to get a seat at the table with community planners by demonstrating the functions that are critical to recovery. A literature review and case study are used to develop these recommendations. A critical success factor is to use a disaster preparation methodology that includes a business continuity plan.

scholarly journals A Quantitative Study on the Requirement for Additional Inertia in the European Power System until 2050 and the Potential Role of Wind Power

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2309 ◽  
Author(s):  
Christos Agathokleous ◽  
Jimmy Ehnberg
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Worst Case ◽  
Study Results ◽  
The Future ◽  
Alternative Sources ◽  
The Eu

A significant amount of conventional power plants in the European power system is anticipated to be replaced by solar and wind power in the future. This may require alternative sources for inertia support. The purpose of the paper is to learn about the consequences on the frequency deviation after a fault in the European power system when more wind and solar are introduced and when wind is considered as a possible provider of inertia. This study quantifies the expected maximum requirement for additional inertia in the future European power system up to 2050. Furthermore, we investigated the possibility of wind power to meet this additional need by providing emulated inertia. The European power system of the EU-28 countries has been clustered to the five synchronous grids, UCTE, Nordic, UK, Baltic and Irish. The future European energy mix is simulated considering twelve different scenarios. Production units are dispatched according to their expected environmental impacts, which closely follow the minimum natural contribution of inertia, in descending order. The available capacity for all the types of production is considered the same as the installed. For all the simulated scenarios the worst case is examined, which means that a sudden disconnection of the largest production unit of the dispatched types is considered. Case study results reveal that, in most cases, additional inertia will be required but wind power may fully cover this need for up to 84% of all simulated horizons among all the scenarios on the UCTE grid, and for up to 98%, 86%, 99% and 86% on the Nordic, UK, Baltic and Irish grids, respectively.

scholarly journals Role of Democratic Volunteers as the "Election Marketer"

2018 ◽  
Vol 2 (2) ◽  
pp. 148
Author(s):  
M. Daimul Abror ◽  
Heri Sunarno
Keyword(s):  
Agency Theory ◽  
Voter Turnout ◽  
Short Term ◽  
Study Approach ◽  
Model Contract ◽  
The Government ◽  
Principal Agency Theory

Voter turnout in 1999-2009 has decreased significantly. At 1999 92.6% chosen and 7.3% abstains, at 2004 84.1% chosen and 15.9% abstains, at 2009 70.9% chosen and 29.1% abstains. (www.merdeka.com). These conditions encourage Indonesian Election Commision to form Democratic Volunteer as an agent that helps the socialization of Election 2014. This study aims to comprehensively assess the role of Democratic Volunteer as "Election Marketer" in Principal Agency Theory perspective. This study uses qualitative research with case study approach. The results are (1) Relations between Pasuruan Regency Election Commision as principal with Democratic Volunteerasagent (2) Contract model of Democratic Volunteer in two aspects, the type of contract that contract model is short Term Contracts, and the type of both relationship are relation between government and civil society; (3) In carrying out its role as election marketer, Democratic Volunteer fulfill four criteria in Principal Agency Theory perspective. The weakness of model contract of Democratic Volunteer are Short Term Contracts must be solved by entering into a Long Term Contracts to be interwoven communication simultaneously between the government, in this case between Pasuruan Regency Election Commision with Democratic Volunteer as the embodiment of Civil Societies participation is represented by five segments groups of voters.

A relational view of start-up firms inside an incubator: the case of the ARCA consortium

2018 ◽  
Vol 21 (4) ◽  
pp. 601-619 ◽  
Author(s):  
Davide Di Fatta ◽  
Francesco Caputo ◽  
Gandolfo Dominici
Keyword(s):  
Design Methodology ◽  
Single Case ◽  
Research Approach ◽  
Short Term ◽  
Collaborative Relationships ◽  
Content Type ◽  
Start Up

Purpose Analyzing the entrepreneurial ecosystem related to the ARCA consortium, the purpose of this paper is to study the relationships among the start-up firms inside an incubator. Design/methodology/approach Thanks to the adoption of the relationships concentric model and the density concentric model, the paper highlights the role of relational conditions for innovative projects in partnership among the incubated firms. Reflections herein are tested via a qualitative research approach based on a single case study: the ARCA consortium. Findings This research found that about 32 percent of relationships inside the incubator support the emergence of short-term relationships among the incubated firms. Furthermore, about 18 percent of the relationships support the emergence of strong collaborative strategies for the implementation of long-term relationships resulting in innovative pathways: innovative projects in partnership. Originality/value The most interconnected firms inside the incubator are those that play a central role also in the innovation pathway developing the higher number of innovative project in partnership. This finding emphasizes a correlation between collaborative relationships and innovation inside an incubator ecosystem.

Expanding the Field of View: The Role of Agricultural Employers in Street-Level Immigration Policy Implementation

2015 ◽  
Vol 50 (8) ◽  
pp. 1097-1124 ◽  
Author(s):  
Elizabeth Nisbet
Keyword(s):  
New York ◽  
Policy Implementation ◽  
Labor Markets ◽  
Immigration Policy ◽  
New York State ◽  
Farm Labor ◽  
Short Term ◽  
Street Level

More than half the U.S. farm labor force is undocumented, and thousands of U.S. employers hire farmworkers through the short-term H-2A visa program. Immigration enforcement and H-2A policy thus have an important role in farm labor markets, but its nature depends on street-level policy implementation dynamics. An interview-based case study in New York State extended literature on street-level bureaucrats by broadening the focus to actors outside government in the context of labor markets. The research specifies employer roles in policy implementation as beneficiaries of policy, de facto policy implementers, and citizens reacting to or attempting to influence policy.

Time Matters! How hybrid organizations use time to respond to divergent stakeholder demands

2020 ◽  
pp. 017084061990034
Author(s):  
Tommaso Ramus ◽  
Antonino Vaccaro ◽  
Pascual Berrone
Keyword(s):  
Stakeholder Engagement ◽  
Stakeholder Management ◽  
Comparative Case Study ◽  
Hybrid Organizations ◽  
Short Term

Researchers have endeavoured to explore how hybrid organizations navigate conflicting institutional demands. Yet, the role of time has often been neglected. We address this oversight through a longitudinal comparative case study, where we investigate how time and stakeholder engagement shape hybrid organizations’ capacity to secure support from stakeholders adhering to different logics. Grounding our insights in the literatures on hybrid organizations and stakeholder management, we reveal how stakeholder demands that appear to be incompatible when analysed from a short-term perspective can be seen as paradoxical when addressed with a long-term perspective. We also find that the development of this paradoxical perspective is facilitated by stakeholder engagement. Finally, we show that a long-term perspective helps hybrid organizations manage symbolic and substantive actions with the appropriate sequence and timing. Together, this evidence contributes to research by providing a better understanding of temporality and how it influences the effectiveness of organizations in responding to divergent stakeholder demands.

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