@article{WardoyoNoorElbersetal.2020,
  author    = {Wardoyo, Arinto Y.P. and Noor, Johan A.E. and Elbers, Gereon and Schmitz, Sandra and Flaig, Sascha T. and Budianto, Arif},
  title     = {Characterizing volcanic ash elements from the 2015 eruptions of bromo and raung volcanoes, Indonesia},
  series = {Polish Journal of Environmental Studies},
  volume    = {29},
  journal   = {Polish Journal of Environmental Studies},
  number    = {2},
  publisher = {HARD},
  address   = {Olsztyn},
  issn      = {2083-5906},
  doi       = {10.15244/pjoes/99101},
  pages     = {1899 -- 1907},
  year      = {2020},
  abstract  = {The volcanic eruptions of Mt. Bromo and Mt. Raung in East Java, Indonesia, in 2015 perturbed volcanic materials and affected surface-layer air quality at surrounding locations. During the episodes, the volcanic ash from the eruptions influenced visibility, traffic accidents, flight schedules, and human health. In this research, the volcanic ash particles were collected and characterized by relying on the detail of physical observation. We performed an assessment of the volcanic ash elements to characterize the volcanic ash using two different methods which are aqua regia extracts followed by MP-AES and XRF laboratory test of bulk samples. The analysis results showed that the volcanic ash was mixed of many materials, such as Al, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, and others. Fe, Si, Ca, and Al were found as the major elements, while the others were the trace elements Ba, Cr, Cu, Mn, P, Mn, Ni, Zn, Sb, Sr, and V with the minor concentrations. XRF analyses showed that Fe dominated the elements of the volcanic ash. The XRF analysis showed that Fe was at 35.40\% in Bromo and 43.00\% in Raung of the detected elements in bulk material. The results of aqua regia extracts analyzed by MP-AES were 1.80\% and 1.70\% of Fe element for Bromo and Raung volcanoes, respectively.},
  language  = {en}
}
@article{WarerkarSchmitzGoettscheetal.2007,
  author    = {Warerkar, Shashikant and Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard},
  title     = {Wirtschaftlich und flexibel : Luft-Sand-W{\"a}rme{\"u}bertrager f{\"u}r die Energiespeicherung bei Temperaturen bis 800 °C},
  series = {Verfahrenstechnik. 41 (2007), H. 4},
  journal   = {Verfahrenstechnik. 41 (2007), H. 4},
  isbn      = {0175-5315},
  pages     = {72 -- 73},
  year      = {2007},
  language  = {de}
}
@article{WarerkarSchmitzGoettscheetal.2011,
  author    = {Warerkar, Shashikant and Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Reißel, Martin and Tamme, Rainer},
  title     = {Air-Sand Heat Exchanger for High-Temperature Storage},
  series = {Journal of Solar Energy Engineering. 133 (2011), H. 2},
  journal   = {Journal of Solar Energy Engineering. 133 (2011), H. 2},
  publisher = {ASME},
  address   = {New York},
  isbn      = {0199-6231},
  pages     = {021010},
  year      = {2011},
  language  = {en}
}
@article{WarmerWagnerSchoeningetal.2015,
  author    = {Warmer, Johannes and Wagner, Patrick and Sch{\"o}ning, Michael Josef and Kaul, Peter},
  title     = {Detection of triacetone triperoxide using temperature cycled metal-oxide semiconductor gas sensors},
  series = {Physica status solidi (a)},
  volume    = {212},
  journal   = {Physica status solidi (a)},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201431882},
  pages     = {1289 -- 1298},
  year      = {2015},
  language  = {en}
}
@article{Weber2001,
  author    = {Weber, Hans-Joachim},
  title     = {Verbundforschungsprojekt Multimediale 3D-Visualisierung der Herzmuskelerregung},
  series = {Intelligente, innovative Produktentwicklung f{\"u}r die industrielle Praxis. Stenzel, Horst [Hrsg.]},
  journal   = {Intelligente, innovative Produktentwicklung f{\"u}r die industrielle Praxis. Stenzel, Horst [Hrsg.]},
  publisher = {Forschungverbund Multimedia an Fachhochschulen},
  address   = {K{\"o}ln},
  pages     = {99 -- 112},
  year      = {2001},
  language  = {de}
}
@article{WeberBhujuChandraetal.2004,
  author    = {Weber, Hans-Joachim and Bhuju, S. and Chandra, S. and Mo, X.},
  title     = {Fabrication of biodegradable nanofibers for tubular scaffolds in regenerative medicine / Weber, H.-J. ; Bhuju, S. ; Chandra, S. ; Mo, X.},
  series = {Biomedizinische Technik. 49 (2004), H. Erg.-Bd. 2, Teil 2},
  journal   = {Biomedizinische Technik. 49 (2004), H. Erg.-Bd. 2, Teil 2},
  pages     = {1016 -- 1017},
  year      = {2004},
  language  = {en}
}
@article{WeberHekmatZimmermannetal.2004,
  author    = {Weber, Hans-Joachim and Hekmat, K. and Zimmermann, T. and Kampe, S.},
  title     = {Impact of tranexamic acid vs. aprotinin on blood loss and transfusion requirements after cardiopulmonary bypass: a prospective, randomised, double-blind trial / Hekmat, K. ; Zimmermann, T. ; Kampe, S. ; Kasper, S. M. ; Weber, H. J. ; Geissler, H. J. ; Meh},
  series = {Current Medical Research and Opinion. 20 (2004), H. 1},
  journal   = {Current Medical Research and Opinion. 20 (2004), H. 1},
  isbn      = {0300-7995},
  pages     = {121 -- 126},
  year      = {2004},
  language  = {en}
}
@article{WeberHekmatKananietal.2002,
  author    = {Weber, Hans-Joachim and Hekmat, Khosro and Kanani, Reza and Ahmadpour, R. [u.a.]},
  title     = {Haben Mobiltelefone einen negativen Einfluss auf moderne Herzschrittmacher? / K. Hekmat, R. Kanani, R. Ahmadpour, G. Lauterbach, M. S{\"u}dkamp, H.-J. Weber, E. R. de Vivie},
  series = {Kardiotechnik. 11 (2002), H. 2},
  journal   = {Kardiotechnik. 11 (2002), H. 2},
  isbn      = {0941-2670},
  pages     = {45 -- 47},
  year      = {2002},
  language  = {de}
}
@article{WeberLacoKunetal.2009,
  author    = {Weber, Hans-Joachim and Laco, Filip and Kun, Ma and Ramakrishna, S.},
  title     = {The dose effect of human bone marrow-derived mesenchymal stem cells on epidermal development in organotypic co-culture / Laco, Filip ; Kun, Ma ; Weber, Hans Joachim ; Ramakrishna, S. ; Chan, Casey K.},
  series = {Journal of Dermatological Science. 55 (2009), H. 3},
  journal   = {Journal of Dermatological Science. 55 (2009), H. 3},
  isbn      = {0923-1811},
  pages     = {150 -- 160},
  year      = {2009},
  language  = {en}
}
@article{WeberMo2004,
  author    = {Weber, Hans-Joachim and Mo, Xiumei},
  title     = {Electrospinning P(LLA-CL) nanofiber: a tubular scaffold fabrication with circumferential alignment / Xiumei Mo, Hans-Joachim Weber},
  series = {Contributions from 6th Austrian Polymer Meeting : Vienna, Austria, September 15 - 17, 2003 / Symposium ed.: W. H. Binder},
  journal   = {Contributions from 6th Austrian Polymer Meeting : Vienna, Austria, September 15 - 17, 2003 / Symposium ed.: W. H. Binder},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  pages     = {413 -- 416},
  year      = {2004},
  language  = {en}
}