Error message

  • Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /vz/drupal/drupal-7.23/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /vz/drupal/drupal-7.23/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /vz/drupal/drupal-7.23/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /vz/drupal/drupal-7.23/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /vz/drupal/drupal-7.23/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /vz/drupal/drupal-7.23/includes/database/database.inc).

2019

Upcoming events

24-26 April 2019

14th HYdrogen - POwer THeoretical and Engineering Solutions International Symposium (HYPOTHESIS XIV), Foz do Iguaçu (Brazil).

http://www.hypothesis.ws/

2-7 June 2019

8th World Hydrogen Technology Convention (WHTC 2019)
Tokyo, Japan

http://whtc2019.jp/

16-20 June 2019

8th International Zeolite Membrane Meeting (IZMM2019), Lulea (Sweden).

https://www.ltu.se/research/subjects/Kemisk-teknologi/Konferenser/IZMM20...

8-11 July 2019

14th International Conference on Catalysis in Membrane Reactor (ICCMR14), Eindhoven, The Netherlands.

https://www.iccmr14.com/

22-25 June 2020

 23rd World Hydrogen Energy Conference (WHEC 2020), Copenhagen (Denmark).