24 resultados para Dental enamel, erosion
em Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States
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Report produced by Iowa Departmment of Agriculture and Land Stewardship
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The purpose of this Iowa manual is to serve as a guide, provide solutions, and offer suggestions on construction sites to comply with Iowa's current soil erosion and storm water runoff regulations. This need is particularly important when land undergoes a land use change. Information provided in this manual will be helpful to land owners, developers, consultants, contractors, planners, local government, as well as the general public. This manual is intended to provide techniques that will meet the mandates of current legislation. Innovations that will benefit the user and still provide effective control are encouraged.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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Newsletter produced by the Iowa Dental Board.
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The project described herein has led to a convenient, computer-based expert system for identifying and evaluating potentially effective erosion- and sedimentation-control measures for use in roadway construction throughout Iowa and elsewhere in the Midwest. The expert system is intended to be an accessible and efficient practical resource to aid state, county, and municipal engineers in the selection of the best management practices for preventing unwanted erosion and sedimentation at roadway construction sites, during and after construction.
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The objective of this research project was to evaluate field application results and determine whether the Earth-Gard mat made from recycled material would successfully control erosion and allow vegetation to establish in ditch bottoms and steep slopes. The research would also help determine how steep a grade in the ditch bottoms can be protected from rill and gully erosion and how steep and long a backslope or foreslope can be protected from sheet and rill erosion by the recycled material and allow establishment of vegetation. The Earth-Gard gave satisfactory performance on areas with limited drainage and gradual slopes. Earth-Gard had a longevity of only six months. It was eroded away when used on areas with greater flow or steeper slopes.
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Research project HR-155 was initiated to study soil erosion problems along the secondary road system in Iowa and to find a substitute for straw for the control of soil erosion during the period of seed establishment. Accordingly, six field research sites were established to test the ability of commercial soil conditioners to control soil erosion. The six field research sites were selected on the basis of terrain and type of soil material exposed on the cut-slope areas.
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Report on a review of certain expenditures made by the Iowa Department of Public Health, including the Iowa Board of Pharmacy, the Iowa Dental Board, the Iowa Board of Medicine, and the Iowa Board of Nursing, from July 1, 2011 through August 31, 2014
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During 1959, research was continued by the Agronomy Department in cooperation with the Iowa Highway Commission on vegetative establishment and erosion control on highway backslopes (Project 1010). The work was continued at previously established sites and also several new experiments were initiated during the year. The work will be discussed for each separate experiment and location in this report.
