![Johan HJELM | Professor (Full) | PhD | Technical University of Denmark, Kongens Lyngby | DTU | Department of Energy Conversion and Storage | Research profile Johan HJELM | Professor (Full) | PhD | Technical University of Denmark, Kongens Lyngby | DTU | Department of Energy Conversion and Storage | Research profile](https://i1.rgstatic.net/ii/profile.image/273827280191488-1442296919070_Q512/Johan-Hjelm.jpg)
Johan HJELM | Professor (Full) | PhD | Technical University of Denmark, Kongens Lyngby | DTU | Department of Energy Conversion and Storage | Research profile
![File:Dansk-norsk slottsknekt (Danish-Norw. castle soldier) c. 1570 spansk hjelm ringkrave vams esponton stangvåpen kort pike C4 Christian IV kopier (doublet gorget morion helmet spontoon half-pike copies) Bergenhus Festningsmuseum Norway.jpg ... File:Dansk-norsk slottsknekt (Danish-Norw. castle soldier) c. 1570 spansk hjelm ringkrave vams esponton stangvåpen kort pike C4 Christian IV kopier (doublet gorget morion helmet spontoon half-pike copies) Bergenhus Festningsmuseum Norway.jpg ...](https://upload.wikimedia.org/wikipedia/commons/3/3e/Dansk-norsk_slottsknekt_%28Danish-Norw._castle_soldier%29_c._1570_spansk_hjelm_ringkrave_vams_esponton_stangv%C3%A5pen_kort_pike_C4_Christian_IV_kopier_%28doublet_gorget_morion_helmet_spontoon_half-pike_copies%29_Bergenhus_Festningsmuseum_Norway.jpg)
File:Dansk-norsk slottsknekt (Danish-Norw. castle soldier) c. 1570 spansk hjelm ringkrave vams esponton stangvåpen kort pike C4 Christian IV kopier (doublet gorget morion helmet spontoon half-pike copies) Bergenhus Festningsmuseum Norway.jpg ...
![Military equipment of the 20th century: Danish M48 helmet / Hjelm M48 ( US M1 helmet and Austrian clone) Military equipment of the 20th century: Danish M48 helmet / Hjelm M48 ( US M1 helmet and Austrian clone)](http://3.bp.blogspot.com/-H1ZFlO1i868/T28hZ6AkPMI/AAAAAAAAA0Y/4e37lj_J_SU/s1600/Danske+hjelme-M48-65+-01.jpg)
Military equipment of the 20th century: Danish M48 helmet / Hjelm M48 ( US M1 helmet and Austrian clone)
![Denmark, Copenhagen - September 18, 2017. The Swedish metalcore band Dead By April performs a live concert at VEGA in Copenhagen. Here vocalist and guitarist Pontus Hjelm is seen live on stage. ( Denmark, Copenhagen - September 18, 2017. The Swedish metalcore band Dead By April performs a live concert at VEGA in Copenhagen. Here vocalist and guitarist Pontus Hjelm is seen live on stage. (](https://c8.alamy.com/comp/KT87WF/denmark-copenhagen-september-18-2017-the-swedish-metalcore-band-dead-KT87WF.jpg)