Thematische Bibliographien / Detekce bublin

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Auswahl der wissenschaftlichen Literatur zum Thema „Detekce bublin“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 17. Februar 2022

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Zeitschriftenartikel zum Thema "Detekce bublin"

Kaaki, Suha, Christopher Pysyk und Sebastien Gilbert. „Will bubbling decrease the muddling?—a promising technique to detect air leak intra-operatively“. Journal of Thoracic Disease 11, S9 (Mai 2019): S1206—S1207. http://dx.doi.org/10.21037/jtd.2019.03.48.

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Kataria, Ranjit S., Periasamy Kathiravan, Shyam S. Bulandi, D. Pandey und Bishnu P. Mishra. „Microsatellite-based genetic monitoring to detect cryptic demographic bottleneck in Indian riverine buffaloes (Bubalus bubalis)“. Tropical Animal Health and Production 42, Nr. 5 (20.11.2009): 849–55. http://dx.doi.org/10.1007/s11250-009-9498-1.

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Da Silva Pedroso, Silvia Cristina, Karla Valéria Batista Lima, Ismari Perini Furlaneto, Yan Corrêa Rodrigues, Darlene Kássia Saraiva Queiroz Pantoja, Alex Junior Souza de Souza und Washington Luiz Assunção Pereira. „Bovine tuberculosis due to Mycobacterium bovis and other mycobacteria among water buffalo (Bubalus bubalis) from the Brazilian Amazon“. Journal of Infection in Developing Countries 15, Nr. 05 (31.05.2021): 736–41. http://dx.doi.org/10.3855/jidc.13558.

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Introduction: Zoonotic tuberculosis is a disease of public health importance worldwide, especially in developing countries. The present study aimed to investigate the role played by Mycobacterium bovis and other mycobacteria as etiologic agents of bubaline tuberculosis (TB) in the Brazilian Amazon region. Methodology: Granulomatous lesions suggestive of TB obtained from 109 buffaloes (n =109) during sanitary inspection at slaughter were subjected to histopathological evaluation, immunohistochemical (IHC) detection of Mycobacterium antigens, and to molecular tests (PCR) to detect hsp65, IS6110 and RD4 genes, which are specific to Mycobacterium spp., Mycobacterium tuberculosis Complex (MTBC) and M. bovis, respectively. Results: PCR results indicated Mycobacterium infection in 87.2% of the cases, of which 69.5% were positive for M. bovis, 27.4% belonged to MTBC, and 3.1% were probably non-TB mycobacteria. There was good agreement between the genus-specific molecular technique and the histopathological analysis. This high frequency of TB cases caused by non-M. bovis suggests a diversified scenario of mycobacteria associated with bubaline TB in the Brazilian Amazon region. Conclusions: The results reinforce the need of discussing the inclusion of more accurate techniques in examinations carried out by Inspection Services in Brazil.

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Fichtner, Andreas, Benedikt Brunner, Thomas Pohl, Thomas Grab, Tobias Fieback und Thea Koch. „Estimating Inert Gas Bubbling from Simple SCUBA Diving Parameters“. International Journal of Sports Medicine 42, Nr. 09 (27.01.2021): 840–46. http://dx.doi.org/10.1055/a-1342-8030.

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AbstractInert gas bubbles frequently occur in SCUBA divers’ vascular systems, eventually leading to decompression accidents. Only in professional settings, dive profiles can be adjusted on individual basis depending on bubble grades detected through ultrasonography. A total of 342 open-circuit air dives following sports diving profiles were assessed using echocardiography. Subsequently, (Eftedal-Brubakk) bubble grades were correlated with dive and individual parameters. Post-dive cardiac bubbles were observed in 47% of all dives and bubble grades were significantly correlated with depth (r=0.46), air consumption (r=0.41), age (r=0.25), dive time (r=0.23), decompression diving (r=0.19), surface time (r=− 0.12). Eftedal-Brubakk categorical bubble grades for sports diving with compressed air can be approximated by bubble grade = (age*50−1 – surface time*150−1+maximum depth*45−1+air consumption*4500−1)2 (units in years, hours, meter, and bar*liter; R2=0.31). Thus, simple dive and individual parameters allow reasonable estimation of especially relevant medium to higher bubble grades for information on relevant decompression stress after ascent. Echo bubble grade 0 is overestimated by the formula derived. However, echo might fail to detect minor bubbling only. The categorical prediction of individual decompression stress with simple bio and dive data should be evaluated further to be developed towards dive computer included automatic ex-post information for decision-making on individual safety measures.

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VIDAL, GERARD, und HÉCTOR MANCINI. „HYPERCHAOTIC SYNCHRONIZATION UNDER SQUARE SYMMETRY“. International Journal of Bifurcation and Chaos 19, Nr. 02 (Februar 2009): 719–26. http://dx.doi.org/10.1142/s0218127409023081.

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We study two identical hyperchaotic oscillators symmetrically coupled. Each oscillator represents a codimension-2 Takens–Bogdanov bifurcation under square symmetry, and was used to model a convection experiment in a time-dependent state. In the coupled system, the Lyapunov exponents behavior against the coupling parameter is used to detect changes in the dynamics, and the synchronization state is controlled by checking the phase planes. Complete synchronization is achieved without chaos suppression in a coupling parameter interval. Outside this window, complete synchronization cannot be generally achieved. As a consequence of a bubbling transition, synchronization is obtained only for some particular values of the initial conditions.

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Craig, María I., Guido A. König, Daniel F. Benitez und María G. Draghi. „Molecular analyses detect natural coinfection of water buffaloes (Bubalus bubalis) with bovine viral diarrhea viruses (BVDV) in serologically negative animals“. Revista Argentina de Microbiología 47, Nr. 2 (April 2015): 148–51. http://dx.doi.org/10.1016/j.ram.2015.03.001.

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Sheela, P., Malathi Shekar, Shrikrishna Isloor, D. Rathnamma, B. M. Veeregowda, M. L. Satyanarayana, S. Sundareshan, B. E. Shambulingappa und Nagendra R. Hegde. „Randomly amplified polymorphic DNA analysis of Staphylococcus chromogenes isolated from bovine and bubaline mastitis in Karnataka“. January-2021 14, Nr. 1 (30.01.2021): 285–91. http://dx.doi.org/10.14202/vetworld.2021.285-291.

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Background and Aim: In recent times, non-aureus staphylococci (NAS) have emerged as the major organisms isolated from mastitis cases in dairy animals, with a predominance of Staphylococcus epidermidis and Staphylococcus chromogenes. As compared to Staphylococcus aureus, much less is known about the molecular types or the spatiotemporal epidemiology of these NAS species. In the present study, randomly amplified polymorphic DNA (RAPD) was employed to detect genetic polymorphisms, intraspecies diversity, and epidemiology of S. chromogenes strains (n=37) isolated from bovine and bubaline mastitis cases in the state of Karnataka. Materials and Methods: Thirty-seven S. chromogenes isolates (14 from bovines and 23 from bubaline) isolated from subclinical mastitis cases, from organized and unorganized sectors, were subjected to RAPD typing. Further, methicillin resistance was determined by cefoxitin disk diffusion method. Results: The amplified DNA fragments ranged from 150 to 3000 base pairs and yielded several RAPD profiles. Further analysis using Digital Image Correlation Engine correlation coefficient and UPGMA method showed that the 37 isolates could be classified into 12 distinct RAPD types (A to L) at 62% similarity (D=0.889). Four of the most predominant RAPD types, B, A, C, and E, in that order, and together, represented 65% of the isolates. High diversity was observed among the isolates both within farms and between geographic locations. Most of the isolates exhibited methicillin resistance. This is the first such report from India. Conclusion: In the absence of defined multilocus sequence type protocols or sufficient sequences available in the public domain, RAPD can be employed to determine genetic diversity of S. chromogenes isolates.

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Allam, G., I. R. Bauomy, Z. M. Hemyeda, T. M. Diab und T. F. Sakran. „Diagnostic potential ofFasciola gigantica-derived 14.5 kDa fatty acid binding protein in the immunodiagnosis of bubaline fascioliasis“. Journal of Helminthology 87, Nr. 2 (13.03.2012): 147–53. http://dx.doi.org/10.1017/s0022149x12000168.

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AbstractThe 14.5 kDa fatty acid binding protein (FABP) was isolated from the crude extract of adultFasciola giganticaworms. Polyclonal anti-FABP IgG was generated in rabbits immunized with prepared FABP antigen. Sandwich enzyme-linked immunosorbent assay (ELISA) was applied to detect coproantigen in stools and circulatingFasciolaantigen (CA) in sera of 126 water buffaloes by using purified and horseradish peroxidase (HRP)-conjugated anti-FABP IgG. Sandwich ELISA sensitivity was 96.97% and 94.95%; while specificity was 94.12% and 82.35% for coproantigen and CA detection, respectively. However, sensitivity and specificity of the Kato–Katz technique was 73.74% and 100%, respectively. The diagnostic efficacy of sandwich ELISA was 96.55% and 93.1% for coproantigen and CA detection, respectively. In contrast, the diagnostic efficacy of the Kato–Katz technique was 77.59%. In conclusion, these results demonstrate that the purified 14.5 kDa FABP provides a more suitable antigen for immunodiagnosis of early and current bubaline fascioliasis by using sandwich ELISA.

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Di Giuliano, Andrea, Ibai Funcia, Raúl Pérez-Vega, Javier Gil und Katia Gallucci. „Novel Application of Pretreatment and Diagnostic Method Using Dynamic Pressure Fluctuations to Resolve and Detect Issues Related to Biogenic Residue Ash in Chemical Looping Gasification“. Processes 8, Nr. 9 (11.09.2020): 1137. http://dx.doi.org/10.3390/pr8091137.

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Biogenic residues are a promising feedstock to produce liquid biofuels via chemical looping gasification (CLG), but they form ashes with a high inorganic matter content, thus causing agglomeration and deposition in CLG-fluidized beds made of oxygen carriers (OC). The aim of this work is to develop pretreatments for residual biomasses to prevent this issue. Raw forest pine (as a reference material) and wheat straw residues were considered. The latter were pretreated by torrefaction at 250, 260, or 270 °C and through the washing of torrefied biomasses. Torrefaction encouraged a de-chlorinating effect, while washing allowed the removal of 30–40% of S, 60–70% of K, and 40–50% of P. The analysis of pressure fluctuation signals (standard deviations and dominant frequencies) was utilized to verify the improvement of the performance of treated biomass in fluidized beds: three OCs were, respectively, coupled with ashes from all biomasses, then fluidized from 700 to 1000 °C at two and three times the minimum fluidization velocity. The diagnostic method used to analyze pressure fluctuations was shown to be effective for detecting the incipient fading of bubbling fluidization. This phenomenon was related to the agglomeration or the severe fragmentation of OC particles mixed with ashes, thanks to scanning electron microscopy and particle-size measurements. These characterizations and pressure fluctuations analyses confirmed the general improvement of wheat straw performances after pretreatments.

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Sorota, S., und B. F. Hoffman. „Role of G proteins in the acetylcholine-induced potassium current of canine atrial cells“. American Journal of Physiology-Heart and Circulatory Physiology 257, Nr. 5 (01.11.1989): H1516—H1522. http://dx.doi.org/10.1152/ajpheart.1989.257.5.h1516.

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The acetylcholine-induced opening of potassium channels depends on GTP-binding proteins in the chick, guinea pig, frog, and rat. In contrast, Bubien and Woods (Biochem. Biophys. Res. Commun. 142: 1039-1045, 1987) have recently postulated that the acetylcholine response in cultured canine atrial cells may be independent of GTP-binding proteins. In whole cell patch-clamp experiments using cultured canine atrial cells, we did not detect an effect of GTP (10(-4) M) in the pipette solution on the acetylcholine-induced potassium current. However, 500 microM guanosine 5'-O-(2-thiodiphosphate) (GDP beta S) in the pipette diminished the response to acetylcholine. Pertussis toxin (30 ng/ml for 24 h) blocked the response to acetylcholine. With guanosine 5'-O-(3-thiotriphosphate) (GTP gamma S; 3 microM) in the patch pipette, acetylcholine irreversibly increased membrane conductance. The current-voltage relationship for the persistently activated current was similar to that induced by acetylcholine. We conclude that the acetylcholine-induced potassium current in canine atrial cells behaves like that seen in other species and depends on GTP-binding proteins.

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Dissertationen zum Thema "Detekce bublin"

Hruška, Kryštof. „Optimalizace vzduchování fotobioreaktoru za pomoci analýzy obrazu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442833.

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This diploma thesis summarizes the knowledge about microalgae, their use, cultivation methods and obstacles that prevent their wider use. In the practical part of the work, a device was designed, constructed, and programmed. This device can analyze the bubbles of the tubular photobioreactor and, based on the obtained data, control its aeration. The Python programming language was used to create the program and the OpenCV library was used to analyze the photographs. The bubble detection is based on the edge detection and the subsequent refinement. The data obtained from the analysis are displayed on the device screen and the data are also stored in a csv file. The discussion lists possible improvements and lessons learned during the creation of this device.

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Konferenzberichte zum Thema "Detekce bublin"

Walle´n, Vesa V. „Horizontal Pressure Fluctuation in Bubbling Fluidized Bed“. In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-046.

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Pressure measurements were conducted in a two-dimensional hot atmospheric bubbling fluidized bed reactor in the laboratory of Energy and Process Engineering at Tampere University of Technology. A set of six fast pressure transducers was used to detect the rapid pressure fluctuations inside the bubbling bed of the reactor. These pressure transducers were placed both vertically and horizontally into the reactor. From these measurements it was found that the vertical pressure fluctuation took place at the same time at different levels of the bed. Also the same fluctuation could be seen under the air distributor. The horizontal pressure fluctuation was found to vary both by place and time. At the bottom part of the bed the highest pressure peaks was found at centre of the bed. Most of the time there was a pressure gradient the highest pressure being in the centre of the bed. This gradient creates horizontal flow of gases from middle to the sides. The velocity of this flow varies with the size of the pressure gradient. The opposite effect can be found in the upper part of the bed. The highest pressure was no more in the middle part of the bed. Instead, it was found to be between the centre of the bed and left and right walls. The pressure was low at the walls but also rather low at the middle of the bed. There must be flow towards the walls and to the centre axis. These pressure fluctuations can provide an explanation for the well-known “wandering plume” effect. They can also give a tool to better describe the mixing inside a bubbling fluidized bed. This kind of tool is needed when biomass combustion is modelled in bubbling fluidized bed.

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Maul, Alexandre M., Luiz A. Correa und Haroldo A. Ponte. „New Developments in Atomic Hydrogen Permeation Measurements Using a Bimetallic Sensor“. In ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2004. http://dx.doi.org/10.1115/fuelcell2004-2524.

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Hydrogen is becoming an important issue due to its characteristics and future applications as it opens access to a broad range of primary energy sources, including fossil fuels, nuclear energy and increasingly renewable energy sources (e.g. wind, solar and biomass) as they become more widely available. Hydrogen in fuel cells can be generated from hydrocarbons, usually alcohols, naphtas or natural gas. In this condition, hydrogen is the desired product. Unfortunately, systems dealing with hydrogen and some hydrocarbons often suffer from hydrogen damage. These damages include: hydrogen induced cracking (HIC), blistering, sulfur stress cracking (SSC) or stress oriented hydrogen induced cracking (SOHIC). These damages are also easily found in corrosive processes at equipments and pipes used in petroleum refining processes and petrochemical plants. The hydrogen, at these processes, is produced by acid media (H+) or chemical processes leading to protons formation (corrosion). The main problem is how to detect, in a safe, fast and economically feasible way, the formation of hydrogen — in this case, an undesirable product. For this work, it was built a cell for hydrogen permeation to study and evaluate a new sensor for atomic hydrogen permeating through a metallic wall. This new sensor is composed of two parts, each one build with a couple of dissimilar materials, being one a sensor couple, for hydrogen flux measurements, and a reference couple, for compensation of temperature variations. The results obtained showed good agreement between the Devanathan-Stachurski Cell (DSC) and the Bimetallic Sensor (BS) (Correˆa, 1999). Both sensors had a sharp increase in current or potential, for DSC and BS, respectively, when the charging side of the permeation cell was polarized. Both sides in the permeation cell were filled with 0.1 M NaOH (continuous N2 bubbling) and the generation side polarized cathodicaly at 3 mA/cm2. The peak potential for the BS was about 30 μV, obtained 12 to 15 h after the polarization.

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