01944ngm 2200433 a 450 991070208700332120120808135709.0(CKB)5470000002423255(OCoLC)805417316(EXLCZ)99547000000242325520120808d2003 ma vengurcna|||a||||tdirdacontentcrdamediacrrdacarrierLongwall Gallery[electronic resource][Atlanta, Ga.] :NIOSH, National Institute for Occupational Safety and Health,[2003]1 online resource (30 sec.) streaming and downloadable RM file, sound, colorTitle from video caption."NIOSH Office of Mine Safety and Health Research Video"--Video home page."This video explains the Pittsburgh Research Laboratory Longwall Dust Gallery. The full-scale gallery allows the study of longwall face ventilation and dust suppression technologies. Researchers can monitor changes in dust levels while parameters such as air velocity and water spray location are varied"--Video home page."2003"--Video home page."Audience: Everyone"--Video home page.Longwall Dust GalleryResearch, IndustrialPennsylvaniaPittsburghLaboratoriesLongwall miningDust controlResearchPennsylvaniaPittsburghDocumentary films.lcgftInternet videos.lcgftResearch, IndustrialLaboratories.Longwall miningDust controlResearchNational Institute for Occupational Safety and Health.National Institute for Occupational Safety and Health.Office for Mine Safety and Health Research.GPOGPOBOOK9910702087003321Longwall Gallery3204026UNINA