Experimental Investigation of Photogrammetric Surface Analysis of Heat Shield Materials during Plasma Wind Tunnel Testing

The paper presents first results of an experimental analysis of surface recession using advanced photogrammetric tools. Based on image pairs acquired with two DSLR cameras, classical photogrammetry has been tried, but pixelwise image analysis with corresponding matching algorithms show much better results ans higher stability to image noise and ra- diation and re ection issues. A combination of open source tools for the analysis of camera positions and focal points, pixel matching analysis, and pixel cloud comparing, allows the recession to be measured with very high local resolution of 20 �m of a 2D surface. The ap- proach is analysed within this study with respect to window disturbance and experimental setup constraints. A first plasma wind tunnel experiment shows the applicability and an analysis of a central spot is comparable to laser recession measurements

International law - a constitution for mankind? : an attempt at a re-appraisal with an analysis of constitutional principles

One of the current trends in international law scholarship is the question of which influences specific legal cultures have on the understanding of international law. This contribution will trace the conditions of a German perspective and analyse the debate against the background of positive law. We will try to assess what the debate adds to the general theory of international law, how it fits into demands of legitimacy of international governance, and whether it contributes to a sensible reconstruction of current law. Furthermore, we try to develop our own perspective that matches the system of international law and is plausible in terms of international legal theory. For that purpose, we will first take It is probably in this context that the contention has to be understood that the ongoing debate on the constitutionalisation of public international law is particularly European, if not German. Whether or not this is the case is difficult to investigate with a lawyer’s tools. However, the idea that international law is the constitution of mankind has found many adherents in German legal writings. This contribution will trace the conditions of a German perspective and analyse the debate against the background of positive law. We will try to assess what the debate adds to the general theory of international law, how it fits into demands of legitimacy of international governance, and whether it contributes to a sensible reconstruction of current law. Furthermore, we try to develop our own perspective that matches the system of international law and is plausible in terms of international legal theory. For that purpose, we will first take up the debate and find its place in the landscape of international legal theory. In this context, we try to shed light on the central concepts used or presupposed when constitutionalisation is discussed by German-speaking scholars (see below, section B). Furthermore, we will discuss structures in positive law which are used as arguments in the debate (section C). Finally, we will try to give an account of constitutionalisation in terms of both sources doctrine and legal theory (section D), before drawing conclusions from the discussion (section E)