The Practical Application of a Flatbed Scanner for Air-Void Characterization of Hardened Concrete

Author(s):  
Karl Peterson ◽  
Lawrence Sutter ◽  
Mateusz Radlinski
2009 ◽  
Vol 6 (9) ◽  
pp. 102446 ◽  
Author(s):  
S. W. Dean ◽  
Karl Peterson ◽  
Lawrence Sutter ◽  
Mateusz Radlinski

2017 ◽  
Vol 45 (5) ◽  
pp. 20150424 ◽  
Author(s):  
Y. Song ◽  
R. Zou ◽  
D. I. Castaneda ◽  
K. A. Riding ◽  
D. A. Lange

Author(s):  
Karl W. Peterson ◽  
Raymond A. Swartz ◽  
Lawrence L. Sutter ◽  
Thomas J. Van Dam

2015 ◽  
Vol 44 (1) ◽  
pp. 20140432 ◽  
Author(s):  
Karl W. Peterson ◽  
Gerald C. Anzalone ◽  
Sona Nezami ◽  
Claire Yea Sol Oh ◽  
Haizhu Lu

2021 ◽  
Vol 2 (4) ◽  
pp. 5081-5093
Author(s):  
Patricio Feijoo Calle ◽  
Elizabeth Brito Verdezoto

En este trabajo se propone una metodología sencilla y de aplicación práctica en campo para la determinación aproximada de la Resistencia a la Compresión Simple (RCS) en rocas, propiedad o característica que es importante en minería, ya que mediante la misma, se ejecutan análisis para la valoración de factores de seguridad y estabilidad y/o posibles sistemas de fortificación en las obras o estructuras mineras, a más de que la caracterización de la RCS es también influyente en el uso de explosivos para la explotación o extracción de materiales de una cantera o mina. Esta estimación se la propone en base a la determinación de las siguientes tres propiedades de la roca, que en esta investigación las denominamos densidad, porosidad y absorción “en mina”. Estas propiedades físicas se las puede obtener de una forma simple, pero metódica y en este trabajo se han ejecutado ensayos sobre un mismo material o roca proveniente de la zona de Cojitambo, provincia del Cañar (Ecuador) y sobre una base de 60 muestras o probetas. Los resultados obtenidos permiten una correlación entre las propiedades antes descritas y la RCS, a más que se ha estructurado una metodología de cálculo para el objetivo planteado.   This work proposes a simple methodology and practical application in the field for the approximate determination of the Unconfined Compressive Strength (UCS) in rocks, property or characteristic that is important in mining, since through it analyzes are carried out to the assessment of security and stability factors and/or possible fortification systems in the works or mining structures, in addition to the characterization of the UCS is also influential in the use of explosives for the exploitation or extraction of materials from a quarry or mine. This estimate is proposed based on the determination of the following three properties of the rock, which in this investigation we call density, porosity and absorption “in mine”. These physical properties can be obtained in a simple, but methodical way and in this work, tests have been carried out on the same material or rock from the Cojitambo area, Cañar province (Ecuador) and on the basis of 60 samples or test tubes. The results obtained allow a correlation between the properties described above and the UCS, in addition to a calculation methodology for the proposed objective.


2015 ◽  
Vol 32 (3) ◽  
pp. 153-163
Author(s):  
Md Mizanur Rahman

Current and emerging biomedical science efforts are driven by determining how to improve clini-cal outcomes for patients. High-throughput tech-nology has revolutionized the area of transla-tional research, confirming the high complexity and heterogeneity of common diseases, partic-ularly cancer. Therefore, moving from ‘classic’ single-gene-based molecular investigation to molecular network research might result in dis-covering clinical implications faster and more efficiently .Molecular characterization of tumour cells enables refinement of classifications for many cancers and can sometimes guide treatment. Malignant diseases are no longer classified only by tumour site and histology but are separated into various homogenous molecular subtypes, distinguished by a presumed key molecular alteration. Therapies for patients with cancer have changed gradually over the past decade, moving away from the administration of broadly acting cytotoxic drugs towards the use of more-specific therapies that are targeted to each tumour. To facilitate this shift, tests need to be developed to identify those individuals who require therapy and those who are most likely to benefit from certain therapies. In particular, tests that predict the clinical outcome for patients on the basis of the genes expressed by their tumours are likely to increasingly affect patient management, heralding a new era of personalized medicine. In this review a brief discussion on definition and molecular aspects of personalized medicine and its practical application for the management of common solid cancers are highlighted.J Bangladesh Coll Phys Surg 2014; 32: 153-163


1996 ◽  
Vol 39 (1) ◽  
Author(s):  
F. Merlanti ◽  
M. Pavan

The «square array» is what we may consider to be an unconventional geoelectric configuration since it is not widely used and therefore there are few examples of practical application. The purpose of this research was to verify the operating effectiveness of this configuration in terms of profile and sounding, and the significance of the set of possible measurements and derived parameters. This was also obtained by comparing the relative measurements with the most common linear arrays (Wenner, Schlumberger, tripotential). The experiment was carried out in two different zones. In the first area, corresponding to the archaeological site of Marzabotto (Bologna), the target was represented by wall remnants inserted in a substantially homogeneous medium, from an electrical point of view, and at depths that are less than those of the dimensions of the device used. At the second site, located in the valley of Landrazza (Savona), the situation was very different, with a valley section on a calcareous bedrock filled with poorly classified residual sediments. An overall analysis of the results showed that the square technique is more exhaustive than the classical linear arrangements when performing soundings. Instead, with regard to profile development, it is not as preferred since it involves a greater amount of work without generating improved information. From analysis of the experimental results, considerable doubts arose about the meaning and the use of the anisotropy coefficients and the error term as defined theoretically. These parameters turned out to be of little use with regard to the characterization of the ground anisotropy and for checking the reliability of the measurements.


Bacteriology ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 48-59
Author(s):  
A.S. Schurova ◽  
◽  
V.A. Bannov ◽  
A.V. Popova ◽  
◽  
...  

In recent decades, a major problem for health systems around the world is the wide spread of bacterial pathogens that are resistant to various antimicrobial agents. A possible approach to solving this problem is the use of bacteriophages, viruses that specifically infect bacterial cells, as well as enzymes and proteins encoded in their genomes. The development of genomic editing technologies, including those based on CRISPR-Cas editing, makes it possible to create genetically engineered or recombinant phage particles with desired properties that are important for further practical application. In this review, we consider issues related to the characterization of bacteriophages as biological objects and as promising candidates for controlling the spread of antibioticresistant bacterial strains. We discuss modern approaches and strategies for modifying the phage genomes using various methods of genetic engineering and molecular biology to solve a variety of practical and research problems. Keywords: bacteriophages, phage genome editing, CRISPR-Cas system


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