Search results for "RJ"

Entrepreneurial Decision-Making Logic Related to Software Development in Different Growth Phases of INVs

2019

Software-based innovations with global market-potential are the main product offering of digital-based International New Ventures, an emerging type of rapidly internationalizing firm. Despite increasing research attention on the internationalization phases of these firms, knowledge of how the characteristics of the firm’s software offerings change over time remains scarce. In this paper, we analyze how standardization, customization and localization evolve through the growth and commitment of International New Ventures in foreign markets. Specifically, we posit that an entrepreneurial decision-making logic based on a logic of effectuation or causation acts as a trigger mechanism for specifi…

Jennifer Egan: Manhattan Beach

2018

Kirja-arvostelu teoksesta Jennifer Egan, Manhattan Beach, Tammi, s. 559, suom. Helene Bützow nonPeerReviewed

Oliko Eichmann paha vai pelle?

2018

Design of a LLC Resonant Converter for Powering a PEM Electrolyzer

2021

International audience; This paper proposes the design of a LLC resonant converter to supply a proton exchange membrane (PEM) electrolyzer. The PEM requires a low voltage with high current, a reduced output voltage ripple, and an overdamped dynamic behavior of the converter to avoid voltage overshoots. The designed converter allows satisfying the design constraints, minimizing switching and reverse recovery losses; the efficiency is influenced mainly by the output rectifier's conduction losses.

"And then they found her body" : T. S. Eliot's corporeal Cocktail party

2003

Leo Ruuskanen - elämä ja taide

2002

"Aika vaatii attentaatteja kaikkia vastaan" : elonkorjaajat, Leo Lindsten ja Markus Heikkerö 1960- ja 1970-lukujen vaihteen suomalaisessa kuvataideke…

1999

Fractal Grid – towards the future smart grid

2017

International audience; In the last two decades, electricity grids have faced many challenges that they were not designed to handle. These include integrating weather-dependent renewables, distributed generators, storage units and other advanced components, as well as taking into account active demand. These challenges, together with the ageing of infrastructures, make it more difficult to deliver cost-effective, reliable power. To overcome these issues requires creating new network architectures. The research project Fractal Grid proposes fractality as a core concept to model, analyze and design smart grids in their evolution up to 2030 and beyond. This paper presents the project, its meth…

Intrusion Detection and Ejection Framework Against Lethal Attacks in UAV-Aided Networks: A Bayesian Game-Theoretic Methodology

2017

International audience; Advances in wireless communications and microelectronics have spearheaded the development of unmanned aerial vehicles (UAVs), which can be used to augment a ground network composed of sensors and/or vehicles in order to increase coverage, enhance the end-to-end delay, and improve data processing. While UAV-aided networks can potentially find applications in many areas, a number of issues, particularly security, have not been readily addressed. The intrusion detection system is the most commonly used technique to detect attackers. In this paper, we focus on addressing two main issues within the context of intrusion detection and attacker ejection in UAV-aided networks…

Scalable and Privacy-Preserving Admission Control for Smart Grids

2015

International audience; Energy demand and production need to be constantly matched in the power grid. The traditional paradigm to continuously adapt the production to the demand is challenged by the increasing penetration of more variable and less predictable energy sources, like solar photovoltaics and wind power. An alternative approach is the so called direct control of some inherently flexible electric loads to shape the demand. Direct control of deferrable loads presents analogies with flow admission control in telecommunication networks: a request for network resources (bandwidth or energy) can be delayed on the basis of the current network status in order to guarantee some performanc…