Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Volker Hoffman"'
Autor:
José Manuel Míguez Novoa, Volker Hoffmann, Eduardo Forniés, Laura Mendez, Marta Tojeiro, Fernando Ruiz, Manuel Funes, Carlos del Cañizo, David Fuertes Marrón, Nerea Dasilva Villanueva, Luis Jaime Caballero, Bülent Arıkan, Raşit Turan, Hasan Hüseyin Canar, Guillermo Sánchez Plaza
Publikováno v:
Frontiers in Photonics, Vol 5 (2024)
Upgraded metallurgical-grade silicon (UMG-Si) has the potential to reduce the cost of photovoltaic (PV) technology and improve its environmental profile. In this contribution, we summarize the extensive work made in the research and development of UM
Externí odkaz:
https://doaj.org/article/caa28f612445468d9c95f13492fa3f24
Autor:
Ratnakar N. Asolkar, Iris Grün-Wollny, Hartmut Laatsch, Volker Hoffman, Werner F. Fleck, Rajendra P. Maskey, Michael Speitling
Publikováno v:
Zeitschrift für Naturforschung B. 58:686-691
In the course of our chemical screening of actinomycetes and other bacteria from terrestrial and marine sources, several extracts showed colourless middle polar bands with strong UV absorption at 254 nm and brown to grey colouration with anisaldehyde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d18212642d4d007b5bd89e31edd409
https://doi.org/10.1515/znb-2003-0713
https://doi.org/10.1515/znb-2003-0713
Autor:
Bernd Büchner, Alicja Bachmatiuk, Mark H. Rümmeli, Andrew Scott, Felix Börrnert, Jarrn-Horng Lin, Volker Hoffman, Gianaurelio Cuniberti, Jamie H. Warner
Publikováno v:
ACS nano. 4(7)
Graphene ranks highly as a possible material for future high-speed and flexible electronics. Current fabrication routes, which rely on metal substrates, require post-synthesis transfer of the graphene onto a Si wafer, or in the case of epitaxial grow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6522671b8a0cb2168fda89283c9571a2
http://ora.ox.ac.uk/objects/uuid:e2ba2390-7960-41ca-8cad-f1c923b94c85
http://ora.ox.ac.uk/objects/uuid:e2ba2390-7960-41ca-8cad-f1c923b94c85
Publikováno v:
Algorithms, Vol 15, Iss 6, p 188 (2022)
With the advancing integration of fluctuating renewables, a more dynamic demand-side, and a grid running closer to its operational limits, future power system operators require new tools to anticipate unwanted events. Advances in machine learning and
Externí odkaz:
https://doaj.org/article/49506a23e1b4431c811b134093d2daaf
Publikováno v:
Review of Scientific Instruments. 48:675-681
The design and performance of a cluster ionizer of the Bayard–Alpert type which is intended to be used in cluster accelerators is described. Positive cluster ions are formed from neutral hydrogen clusters with an efficiency of up to 80%. The mean s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db2550bbdc091ad7fed4a0491b0f07d8
https://doi.org/10.1063/1.1135106
https://doi.org/10.1063/1.1135106
Publikováno v:
Land, Vol 3, Iss 2, Pp 414-436 (2014)
Traditional agrosilvopastoral systems have been an important component of the farming systems and livelihoods of thousands of ethnic minority people in the uplands of Mainland Southeast Asia. Drawing on a combination of qualitative and participatory
Externí odkaz:
https://doaj.org/article/20d136957e8d430098e6c369caec8c5e
Autor:
Erik Brachmann, Marietta Seifert, Niels Neumann, Nidal Alshwawreh, Margitta Uhlemann, Siegfried Bernhard Menzel, Jörg Acker, Steven Herold, Volker Hoffmann, Thomas Gemming
Publikováno v:
Materials, Vol 12, Iss 7, p 1002 (2019)
In an effort to develop a cost-efficient technology for wireless high-temperature surface acoustic wave sensors, this study presents an evaluation of a combined method that integrates physical vapor deposition with electroless deposition for the fabr
Externí odkaz:
https://doaj.org/article/3157e8c43caa4cd99c38a4cedb10322b
Publikováno v:
Tropical Grasslands-Forrajes Tropicales, Vol 1, Iss 2, Pp 235-239 (2013)
To date, silage adoption has been low in the tropics, particularly under smallholder conditions. Innovation and adoption processes of silage technologies were promoted in drought-constrained areas of Honduras using a flexible, site-specific and parti
Externí odkaz:
https://doaj.org/article/4c888556cd094dc9a139d866a4917a66
Autor:
Kerstin Hellwig, Carsten Lukas, Niels Brune, Volker Hoffmann, Sebastian Schimrigk, Horst Przuntek, Thomas Müller
Publikováno v:
The Scientific World Journal, Vol 6, Pp 460-465 (2006)
We describe four patients with relapsing remitting multiple sclerosis (RRMS) who experienced a relapse with acute onset of painful sensations. Pain sensations disappeared in two of them and markedly reduced in the other ones after repeat application
Externí odkaz:
https://doaj.org/article/71480e9f7982454892aeaa09ac2edada