Unstable Soil
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. PHYSICAL, MECHANICAL AND THERMAL BEHAVIOUR OF ADOBE STABILIZED WITH THE SLUDGE OF WASTEWATER TREATMENT PLANTS
ABSTRACT The need for treated water is essential for life. With the constant increase in population, the most common way to purify surface water is through conventional water treatment plants (WTPs). The high volume of residue (sludge) generated in this process is most often returned to the catchment site, negatively affecting the ecosystem. The sludge of WT
Eng. Agríc.. Publicado em: 09/12/2019
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2. Mechanical Mechanism Analysis and Influencing Factors of Subway Cross Passage Construction
Abstract The construction of the cross passage changes the main tunnels segment from a complete cylindrical structure to a notched unstable stressed structure. Thus, the overall force (bending and shearing) performance of the main tunnels is considerably decreased. The excavation of the cross passage also destroys the stability of the original soil layer and
Lat. Am. j. solids struct.. Publicado em: 01/07/2019
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3. Typological analysis of slidequakes emitted from landslides: experiments on an expander body pile and Sobradinho landslide (Brasilia, Brazil)
Abstract Reactivation of a landslide is usually accompanied by microseismic signals emitted from the deforming soil mass. The reproduction of similar signals in a physical model test conducted under control conditions can allow researchers to explore and test such complicated signals to improve the prediction of full-scale failure. The present study investig
REM, Int. Eng. J.. Publicado em: 19/06/2019
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4. TILLAGE INTERFERENCE IN THE QUALITY OF PEANUT MECHANIZED HARVEST
ABSTRACT In Brazil, a large portion of peanut production is found under conventional soil preparation. Due to the fact that there is a lack in studies related to the cultivation of peanuts in conservationists soil preparation, mainly in the field of losses and mechanized harvesting. Thus, it was aimed to assess the quality of digging and gathering operation
Eng. Agríc.. Publicado em: 2018-04
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5. DinÃmica estrutural da comunidade arbÃrea de um fragmento de floresta semisecÃdua Ãs margens do Rio Capivari, Lavras/MG / Structural dynamics of arboreal community in a tropical semideciduous forest fragment at Capivari river border in Lavras, Minas Gerais.
The aim of this study was to describe the arboreal community dynamics of a semideciduous seasonal forest fragment Capivari river border in Lavras, Minas Gerais. The forest fragment is known as Capivari forest. The study was divided in three parts: the first is a general description of the approached issues, (chapter 1); the second is about the changes in for
Publicado em: 2008
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6. Colapso de edifício por ruptura das estacas: estudo das causas e da recuperação / Building collapse for piles rupture: study of the causes and recovery
Most of the buildings accidents, caused by project flaws or of execution, it happens in the construction phase. Besides causing financial damages, they put in risk the workers life. However, more serious accidents are verified after the end of the construction. Besides the damages are larger, they can involve all types of people, children, women and senior.
Publicado em: 2003
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7. Flow variation of emitters under subsurface drip irrigation in citrus and coffee crops. / Variação de vazão de gotejadores enterrados na irrigação de citros e café.
This work aimed to quantify drippers performance under subsurface drip irrigation (SDI), regarding the flow variation due to root intrusion under citrus and coffee crops. The experiment was carried out inside a greenhouse during the year of 2001, at the University of Sao Paulo (ESALQ), in Piracicaba SP. Coffee seedlings and orange scions planted in vases wit
Publicado em: 2002
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8. Transformation of Acinetobacter sp. Strain BD413(pFG4ΔnptII) with Transgenic Plant DNA in Soil Microcosms and Effects of Kanamycin on Selection of Transformants
Here we show that horizontal transfer of DNA, extracted from transgenic sugar beets, to bacteria, based on homologous recombination, can occur in soil. Restoration of a 317-bp-deleted nptII gene in Acinetobacter sp. strain BD413(pFG4) cells incubated in sterile soil microcosms was detected after addition of nutrients and transgenic plant DNA encoding a funct
American Society for Microbiology.
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9. ISOLATION AND PRELIMINARY CHARACTERIZATION OF BACTERIOPHAGES FOR BACILLUS SUBTILIS
Romig, W. R. (University of California, Los Angeles), and A. M. Brodetsky. Isolation and preliminary characterization of bacteriophages for Bacillus subtilis. J. Bacteriol. 82:135–141. 1961.—A simplified procedure for direct isolation of phages for Bacillus subtilis from soil was developed. Phage enrichment was accomplished by growing streptomycin-resist
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10. Transducing Bacteriophage for Bacillus cereus
A phage, designated CP-51, that carries out generalized transduction in Bacillus cereus 569 was isolated from soil. All auxotrophic mutants tested, those requiring tryptophan, histidine, leucine, isoleucine, methionine, or phenylalanine, were transduced to prototrophy. The phage was extremely unstable when stored at 2 to 4 C, but stability was enhanced by st
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11. Large Plasmids from Soil Bacteria Enriched on Halogenated Alkanoic Acids
Four Pseudomonas species and two Alcaligenes species were isolated from soil with a capacity to grow on halogenated alkanoic acids. They were shown to contain one of five large plasmids. The plasmids had molecular weights ranging from 98,800 to 190,000. They were associated with the ability to utilize the halogenated substrates 2-monochloropropionic acid and
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12. Bacterial Activity in the Rhizosphere Analyzed at the Single-Cell Level by Monitoring Ribosome Contents and Synthesis Rates
The growth activity of Pseudomonas putida cells colonizing the rhizosphere of barley seedlings was estimated at the single-cell level by monitoring ribosomal contents and synthesis rates. Ribosomal synthesis was monitored by using a system comprising a fusion of the ribosomal Escherichia coli rrnBP1 promoter to a gene encoding an unstable variant of the gree
American Society for Microbiology.