Diesel e biodiesel de murumuru e de soja: desempenho operacional de trator agrícola no preparo do solo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

An integrated system for building and running reproducible research

Our generation of computational scientists is living in an exciting time: not only do we get to pioneer important algorithms and computations, we also get to set standards on how computational research should be conducted and published. From Euclid’s reasoning and Galileo’s experiments, it took hundreds of years for the theoretical and experimental branches of science to develop standards for publication and peer review. Computational science, rightly regarded as the third branch, can walk the same road much faster. The success and credibility of science are anchored in the willingness of scientists to expose their ideas and results to independent testing and replication by other scientists. This requires the complete and open exchange of data, procedures and materials. The idea of a “replication by other scientists” in reference to computations is more commonly known as “reproducible research”. In this context the journal “EAI Endorsed Transactions on Performance & Modeling, Simulation, Experimentation and Complex Systems” had the exciting and original idea to make the scientist able to submit simultaneously the article and the computation materials (software, data, etc..) which has been used to produce the contents of the article. The goal of this procedure is to allow the scientific community to verify the content of the paper, reproducing it in the platform independently from the OS chosen, confirm or invalidate it and especially allow its reuse to reproduce new results. This procedure is therefore not helpful if there is no minimum methodological support. In fact, the raw data sets and the software are difficult to exploit without the logic that guided their use or their production. This led us to think that in addition to the data sets and the software, an additional element must be provided: the workflow that relies all of them.

Chloride Penetration Prediction in Concrete through an Empirical Model Based on Constant Flux Diffusion

An empirical model based on constant flux is presented for chloride transport through concrete in atmospherical exposure conditions. A continuous supply of chlorides is assumed as a constant mass flux at the exposed concrete surface. The model is applied to experimental chloride profiles obtained from a real marine structure, and results are compared with the classical error-function model. The proposed model shows some advantages. It yields a better predictive capacity than the classical error-function model. The previously observed chloride surface concentration increases are compatible with the proposed model. Nevertheless, the predictive capacity of the model can fail if the concrete microstructure changes with time. The model seems to be appropriate for well-maturated concretes exposed to a marine environment in atmospherical conditions.

Do-it yourself vanpool guide.

Transportation Department, Technology Sharing Program, Washington, D.C.

Electric vehicles: limited range and high costs hamper commercialization. Report by the Comptroller General of the United States.

Mode of access: Internet.

Operational and safety effects of driving on paved shoulders in Texas. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

Data base development of automobile and light truck maintenance. Volume I - text and appendixes A-D. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

The LIFT: special needs transportation in Portland, Oregon. Interim report.

Urban Mass Transportation Administration, Washington, D.C.

Data base development of automobile and light truck maintenance. Volume II - appendix E. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Data base development of automobile and light truck maintenance. Volume III - appendix F. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Noise abatement tradeoff considerations. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Federal motor vehicles: private and state practices can improve fleet management.

Mode of access: Internet.

Moped task analysis. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Moped task analysis: instructional objectives. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Moped task analysis: task descriptions. Final report.

National Highway Traffic Safety Administration, Washington, D.C.