Modeling Bitcoin plus Ethereum as an Open System of Systems of Public Blockchains to Improve Their Resilience against Intentional Risk

In this article, we model the two most market-capitalised public, open and permissionless blockchain implementations, Bitcoin (BTC) and Ethereum (ETH), as a System of Systems (SoS) of public blockchains. We study the concepts of blockchain, BTC, ETH, complex networks, SoS Engineering and intentional risk. We analyse BTC and ETH from an open SoS perspective through the main properties that seminal System of Systems Engineering (SoSE) references propose. This article demonstrates that these public blockchain implementations create networks that grow in complexity and connect with each other. We propose a methodology based on a complexity management lever such as SoSE to better understand public blockchains such as BTC and ETH and manage their evolution. Our ultimate objective is to improve the resilience of public blockchains against intentional risk: a key requirement for their mass adoption. We conclude with specific measures, based on this novel systems engineering approach, to effectively improve the resilience against intentional risk of the open SoS of public blockchains, composed of a non-inflationary money system, “sound money”, such as BTC, and of a world financial computer system, “a financial conduit”, such as ETH. The goal of this paper is to formulate a SoS that transfers digital value and aspires to position itself as a distributed alternative to the fiat currency-based financial system.

SYSTEM OF SYSTEMS LIFECYCLE ENGINEERING APPROACH INTEGRATING SMART PRODUCT AND SERVICE ECOSYSTEMS

Due to the increasing smartization of products and the ecosystems in which they are typically embedded, holistic considerations of future value-added systems are becoming increasingly important. This also determines fundamentally new challenges for the engineering of the future's smart Products. In order to be able to address the increasingly fuzzy system boundaries associated with this, this contribution introduces a System of Systems Engineering Lifecycle Concept considering smart products and services as core components of connected System of Systems ecosystems. Main characteristics of smart products and system of systems are discussed and in a real existing scenario of a sustainable landfill the presented System of Systems Engineering Lifecycle Concept is used as a System of Systems Framework for the given Use-Case.

Kupplungen und Kupplungssysteme in Antrieben 2021

Inhalt Keynote System-of-Systems-Engineering als Basis zukunftsfähiger Antriebs- und Kupplungsentwicklung . . . . .1 Systemwechselwirkungen und Modellbildung Einfluss von Betriebsgrößen auf die Schwingungsreduzierungswirkung im nasslaufenden Kupplungssystem: Empirische Modellbildung – Kennfelder und Skalierbarkeit . . . 11 Entwicklung einer Methode zur Effizienzsteigerung des Manövertransfers auf Gesamtfahrzeug- und Rollenprüfstände am Beispiel der Validierung der Schaltqualität . . . . . .29 Testmethodik zur Verbesserung der Kupplungsdynamik und Reduzierung der Schleppverluste in nasslaufenden Lamellenkupplungen durch Getriebefedern . . . . . 43 Nasslaufende Kupplungssysteme Einlaufverhalten nasslaufender Lamellenkupplungen im Schlupfbetrieb . . . . . . .59 Einfluss von Vorschädigung auf das Reibungsverhalten nasslaufender Lamellenkupplungen im Dauerschaltbetrieb . . . . . . .73 Vorstellung eines Eco Nassbelags . . . . . . . . 91 New semi-dry friction solution for highly integrated active torque-controlled drives . . . . . . 103 Echtzeit-Temperaturberechnung und Temperaturprädikti...