Bauhaus University, Weimar

About: Bauhaus University, Weimar is a education organization based out in Weimar, Thüringen, Germany. It is known for research contribution in the topics: Finite element method & Isogeometric analysis. The organization has 1421 authors who have published 2998 publications receiving 104454 citations. The organization is also known as: Bauhaus-Universität Weimar & Hochschule für Architektur und Bauwesen.

A Computational Framework for Design and Optimization of Flexoelectric Materials

Abstract: We combine isogeometric analysis (IGA), level set (LS) and pointwise density-mapping techniques for design and topology optimization of piezoelectric/flexoelectric materials. We use B-spline elemen...

Tuning Thermal Transport in C 3 N Monolayers by Adding and Removing Carbon Atoms

Abstract: Structural modifications to monolayer C${}_{3}$N (think ``mostly graphene, some nitrogen'') might provide a systematic material-design method to manipulate its thermal transport properties, for advanced thermal management The authors' calculations show that by adding and removing C atoms, the thermal conductivity of monolayer C${}_{3}$N can in fact be tuned dramatically, rendering these materials promising for various applications at ambient temperature The distinct responses of this system are related to localized out-of-plane phonon modes that rely on chemical bonding

Exploring value for money (VfM) assessment methods of public-private partnership projects in Ghana

Abstract: Purpose – The purpose of this paper is to explore the various approaches prescribed in literature in the assessment of value for money (VfM) of public–private partnership (PPP) projects with the aim to develop a theoretical framework for measuring VfM in Ghana.Public–private partnership (PPP) has long been recognized as an effective way of procuring public infrastructure to deliver value for money, but the subject has received little research attention in Ghana. Design/methodology/approach – The methodology comprises a multi-stage critical review of relevant literature; review of Ghana’s National Policy on PPP and review of the Public Procurement Act, 2003 (Act 663). This paper was underpinned by an interpretivist philosophy and is inductive in nature. Findings – The approach for VfM assessment largely depends on the jurisdiction of the project. Multiple methods (qualitative and quantitative) are used along the project cycle in the bid to achieve VfM. The most common assessment approaches include public sector comparator shadow bid, lease-purchase analysis, cost benefits analysis, public interest test central guidelines and competitive bidding. The study developed a theoretical framework for assessing VfM in Ghana. Research limitations/implications – The research was purely exploratory and non-empirical; and hence cannot be generalized in a broader context. Practical implications – Implementation of the National PPP policy and for PPP to thrive in Ghana, a framework to guide the assessment and achievement of VfM is crucial. The steps outlined if followed would help ensure the public receives the best of all PPP deals in Ghana. Originality/value – This paper is unique providing insights into a conceptual basis for assessing VfM and provides a basis for future empirical study.

On 3D input devices

Abstract: We provide an overview of some of our input device developments, which we designed in response to the need for more advanced 3D interfaces. Some of our devices are more task-specific and others are more general, but all of them support six or more degrees of freedom (DOF) and work in three dimensions. In our work, we try to understand the essential requirements of individual tasks and task combinations to develop corresponding devices and interaction techniques. This is our way of developing input devices for the 3D domain that work better for certain application areas than 2D mouses, gloves, and wands.