The Effect Of Agitation And Mixing On Oxygen Consumption In A Biological System.

PhDSanitationUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/184885/2/6715721.pd

United States Bureau of Mines Bulletin 3868

Report issued by the Bureau of Mines over flood-prevention methods at Pennsylvania anthracite mines. The flood-prevention projects are discussed. This report includes tables, maps, photographs, and illustrations

United States Bureau of Mines Reports

Report issued by the U.S. Bureau of Mines discussing mine ventilation designed to reduce explosion hazards. As stated in the scope and purpose of study, "this circular is intended to present important recommended practices that are necessary to minimize the possibilities of methane accumulations in coal mine and reduce the chances of ignitions from electrical sources" (p. 1). This report includes illustrations

Extinguishing Fire with Carbon Dioxide in the Valier Mine, Valier Coal Company, Valier, Franklin County, Illinois

Report issued by the U.S. Bureau of Mines discussing mining fires, and the use of carbon dioxide as fire control. As stated in the introduction, "the purpose of this circular is to describe the sealing off of a mine fire and subsequent use of carbon dioxide gas to extinguish it" (p. 2). This report includes tables, and illustrations

Administration of the Federal Coal-Mine Safety Act, 1952-60 /

"Covers a report of the Division of Coal Mine Inspection ... as transmitted annually to the Congress."Mode of access: Internet

United States Bureau of Mines Bulletin 4288

Report issued by the Bureau of Mines over the progress made on flood prevention in anthracite mines. As stated in the report, "the broad objective of the investigative work was to obtain factual data on: 1. anthracite reserves of Pennsylvania, 2. underground water pools, 3. barrier pillars, 4. the "buried valley" of the Susquehanna River, and 5. infiltration of surface water into underground mine workings" (p. 4). This report includes tables, graphs, maps, photographs, and illustrations

Seawater carbonate chemistry and survival, calcification rate of 4 species of coral over a 93-day ocean acidification and warming laboratory experiment

We conducted a 93-day experiment investigating the independent and combined effects of acidification (280−3300 µatm pCO2) and warming (28°C and 31°C) on calcification and linear extension rates of four key Caribbean coral species (Siderastrea siderea, Pseudodiploria strigosa, Porites astreoides, Undaria tenuifolia) from inshore and offshore reefs on the Belize Mesoamerican Barrier Reef System. All species exhibited nonlinear declines in calcification rate with increasing pCO2. Warming only reduced calcification in Ps. strigosa. Of the species tested, only S. siderea maintained positive calcification in the aragonite-undersaturated treatment. Temperature and pCO2 had no effect on the linear extension of S. siderea and Po. astreoides, and natal reef environment did not impact any parameter examined. Results suggest that S. siderea is the most resilient of these corals to warming and acidification owing to its ability to maintain positive calcification in all treatments, Ps. strigosa and U. tenuifolia are the least resilient, and Po. astreoides falls in the middle. These results highlight the diversity of calcification responses of Caribbean corals to projected global change

United States Bureau of Mines Bulletin 4109

Report issued by the Bureau of Mines over studies conducted on flood-prevention developed for mine systems. A history of flood prevention procedures as well as updated flood-prevention is presented. This report includes tables, graphs, maps, photographs, and illustrations