Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Petr Hlaváček"'
Autor:
Farid Salari, Andrea Zocca, Paolo Bosetti, Petr Hlaváček, Antonino Italiano, Filippo Gobbin, Paolo Colombo, Hans-Carsten Kühne, Vincenzo M. Sglavo
Publikováno v:
Open Ceramics, Vol 18, Iss , Pp 100609- (2024)
The present work addresses powder bed binder jetting additive manufacturing by selective magnesium phosphate cement activation. Despite the potential of this technology to aid the digitalization of the construction industry, the effect of processing
Externí odkaz:
https://doaj.org/article/b4ac868387d54a739a6e2b7c9be99c00
Publikováno v:
Comparative Economic Research, Vol 25, Iss 4, Pp 109-133 (2022)
The study presents the results of grouping EU NUTS 2 regions based on the share of employment in particular sectors (knowledge‑intensive high‑technology services, knowledge‑intensive market services and other knowledge‑intensive services), as
Externí odkaz:
https://doaj.org/article/ff5db94f958b4ceab20d4c71d9e6963f
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 22, Iss 0, Pp 31-37 (2019)
The paper deals with the use of the abrasive water flow technology in an accelerated simulation of the process of mechanical degradation of surface layers of cement-based composites by flowing liquids. Effects of the abrasive particle size and the ma
Externí odkaz:
https://doaj.org/article/2eab50b1e6284998a57c015a499c7c6a
Publikováno v:
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego, Vol 33, Iss 4 (2019)
Celem pracy jest identyfikacja grup krajów Unii Europejskiej podobnych co do struktury zatrudnienia w ujęciu dynamicznym, z wykorzystaniem metody aglomeracyjnej najdalszego sąsiedztwa. W ocenie wykorzystano informacje o zatrudnieniu w krajach Unii
Externí odkaz:
https://doaj.org/article/4abb4d37ba0f401491a635bed864cfcf
Autor:
Shishir Mundra, Susan A. Bernal, Maria Criado, Petr Hlaváček, Gino Ebell, Steffi Reinemann, Gregor J.G. Gluth, John Provis
Publikováno v:
RILEM Technical Letters, Vol 2, Pp 33-39 (2017)
The development of alkali-activated materials (AAMs) as an alternative to Portland cement (PC) has seen significant progress in the past decades. However, there still remains significant uncertainty regarding their long term performance when used in
Externí odkaz:
https://doaj.org/article/8fcb892342024067879ac95fc59f00d6
Publikováno v:
Tehnički Vjesnik, Vol 24, Iss 2, Pp 341-345 (2017)
The paper deals with the topic of the determination of erosion effects of a pulsating water jet impinging the surface of aluminium alloy samples treated by various techniques (rough and fine milling, planing and rolling). The influence of the initial
Externí odkaz:
https://doaj.org/article/4b102ba3443f4a9f8ea90aefda600641
Publikováno v:
Materials, Vol 14, Iss 4, p 828 (2021)
The presented research aims to clarify the specific effect of the individual components of concrete with Portland cement CEM I 42.5 R on the volume changes of concrete. The effect of the filler component was evaluated from the point of view of the co
Externí odkaz:
https://doaj.org/article/72fecd3d71804b6eae4bafaf87950564
Autor:
Petr Hlaváček, Tomáš Siviček
Publikováno v:
Journal of International Studies, Vol 10, Iss 2 (2017)
Externí odkaz:
https://doaj.org/article/4e5d540c36fc4abe9e8b3b6bad11aa53
Publikováno v:
Ceramics-Silikáty, Vol 56, Iss 4, Pp 374-382 (2012)
The alkali bond in (N, K)–A–S–H gels presents an up-to-date insufficiently resolved issue with significant consequences for efflorescence in alkali-activated materials. A series of experiments shows nearly all alkalis are leachable from alkalia
Externí odkaz:
https://doaj.org/article/291abb1ff02143c4a98b6e54ce721f5d
Publikováno v:
Acta Polytechnica, Vol 52, Iss 6 (2012)
Carbon nanotubes (CNT) are an attractive reinforcement material for several composites, due to their inherently high strength and high modulus of elasticity. There are controversial results for cement paste with admixed CNT up to 500 µm in length. S
Externí odkaz:
https://doaj.org/article/70bd5ebe67cd4a7dbbf1a05aaabd793f