Security Evaluation of GoQuorum-based Smart Contracts: A Case Study of Malfunctioning Access Control and Double-Spending

GoQuorum is an enterprise blockchain platform that supports smart contracts and allows for private transactions. Smart contracts enable automated payment while eliminating the need for third-party involvement. Previous attacks on smart contracts have already shown that existing vulnerabilities can lead to great financial losses. Yet, a study...

Santos, Rotterdam: From vacant to active monument, a creative office for Katendrecht

Santos is a warehouse from the beginning of the 20th century, that has been vacant for most of its existence. Located on Katendrecht, it is placed right in the middle of a future high-density plan for 'de Pols', which focuses on attracting urban creators. By turning Santos into a creative office, the thesis builds upon these plans from the...

Relatie korreldiameter en K-waarde voor sterk gegradeerde mengsels

De doorlatendheid van zand kunnen bepalen met één gegeven, de bepalende korreldiameter, is wegens het gemak in gebruik lange tijd een streven geweest, en is het nog steeds. De relatie tussen korreldiameter (d) en doorlatendheid (K-waarde) is door velen aangetoond, maar twijfel is er of deze relatie ook aanwezig is voor sterk gegradeerde...