Zobrazeno 1 - 10
of 2 939
pro vyhledávání: '"P. Ras"'
In this work, we consider a nonsmooth minimisation problem in which the objective function can be represented as the maximum of finitely many smooth ``subfunctions''. First, we study a smooth min-max reformulation of the problem. Due to this smoothne
Externí odkaz:
http://arxiv.org/abs/2404.10326
Land, being a scarce and valuable resource, is in high demand, especially in densely populated areas of older cities. Development authorities require land for infrastructure projects and other amenities, while landowners hold onto their land for both
Externí odkaz:
http://arxiv.org/abs/2308.05950
Autor:
Caicedo-Dávila, Sebastián, Caprioglio, Pietro, Lehmann, Frederike, Levcenco, Sergiu, Stolterfoht, Martin, Neher, Dieter, Kronik, Leeor, Abou-Ras, Daniel
The halide perovskite CsPbBr$_3$ belongs to the Cs-Pb-Br material system, which features two additional thermodynamically stable ternary phases, Cs$_4$PbBr$_6$ and CsPb$_2$Br$_5$. The coexistence of these phases and their reportedly similar photolumi
Externí odkaz:
http://arxiv.org/abs/2306.08548
Autor:
Riccobelli, Davide, Al-Terke, Hedar H., Laaksonen, Päivi, Metrangolo, Pierangelo, Paananen, Arja, Ras, Robin H. A., Ciarletta, Pasquale, Vella, Dominic
Publikováno v:
Phys. Rev. Lett. 130, 218202 (2023)
We report surprising morphological changes of suspension droplets (containing class II hydrophobin protein HFBI from Trichoderma reesei and water) as they evaporate with a contact line pinned on a rigid solid substrate. Both pendant and sessile dropl
Externí odkaz:
http://arxiv.org/abs/2212.00826
Autor:
P. Ras, M. Pretorius
Publikováno v:
Acta Commercii, Vol 7, Iss 1, Pp 327-336 (2007)
Purpose: The aim of this paper is to develop an entrepreneurial education model for implementation in the Namibian Higher Education system. Namibia, just like South Africa, has an objective to develop small, medium and micro enterprises to enhance ec
Externí odkaz:
https://doaj.org/article/59f2d9144dc44527a041a6581c795815
Autor:
Sood, Mohit, Lomuscio, Alberto, Werner, Florian, Nikolaeva, Aleksandra, Dale, Phillip J., Melchiorre, Michele, Guillot, Jerome, Abou-Ras, Daniel, Siebentritt, Susanne
Interface recombination at the absorber buffer interface impedes the efficiency of a solar cell with an otherwise excellent absorber. The internal voltage or the quasi-Fermi level splitting (qFLs) measures the quality of the absorber. Interface recom
Externí odkaz:
http://arxiv.org/abs/2101.12546
Autor:
Cenev, Zoran, Harischandra, P. A. Diluka, Nurmi, Seppo, Latikka, Mika, Hynninen, Ville, Ras, Robin H. A., Timonen, Jaakko V. I., Zhou, Quan
Publikováno v:
IEEE/ASME Transactions on Mechatronics Volume: 26, Issue: 4, Aug. 2021
Manipulation of small-scale matter is a fundamental topic in micro- and nanorobotics. Numerous magnetic robotic systems have been developed for the manipulation of microparticles in an ambient environment, liquid as well as on the air-liquid interfac
Externí odkaz:
http://arxiv.org/abs/2101.02782
In this paper we introduce the temporally factorized 3D convolution (3TConv) as an interpretable alternative to the regular 3D convolution (3DConv). In a 3TConv the 3D convolutional filter is obtained by learning a 2D filter and a set of temporal tra
Externí odkaz:
http://arxiv.org/abs/2006.15983
Deep neural networks (DNNs) have become a proven and indispensable machine learning tool. As a black-box model, it remains difficult to diagnose what aspects of the model's input drive the decisions of a DNN. In countless real-world domains, from leg
Externí odkaz:
http://arxiv.org/abs/2004.14545
We introduce the concept of an obstacle skeleton which is a set of line segments inside a polygonal obstacle $\omega$ that can be used in place of $\omega$ when performing intersection tests for obstacle-avoiding network problems in the plane. A skel
Externí odkaz:
http://arxiv.org/abs/2004.04365