Academic literature on the topic 'Ohyb tyče'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ohyb tyče.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Ohyb tyče"
1
Tsoi, Tamara V., Elena G. Plotnikova, James R. Cole, William F. Guerin, Michael Bagdasarian, and James M. Tiedje. "Cloning, Expression, and Nucleotide Sequence of thePseudomonas aeruginosa 142 ohb Genes Coding for Oxygenolytic ortho Dehalogenation of Halobenzoates." Applied and Environmental Microbiology 65, no. 5 (May 1, 1999): 2151–62. http://dx.doi.org/10.1128/aem.65.5.2151-2162.1999.
Full textAbstract:
ABSTRACT We have cloned and characterized novel oxygenolyticortho-dehalogenation (ohb) genes from 2-chlorobenzoate (2-CBA)- and 2,4-dichlorobenzoate (2,4-dCBA)-degradingPseudomonas aeruginosa 142. Among 3,700 Escherichia coli recombinants, two clones, DH5αF′(pOD22) and DH5αF′(pOD33), converted 2-CBA to catechol and 2,4-dCBA and 2,5-dCBA to 4-chlorocatechol. A subclone of pOD33, plasmid pE43, containing the 3,687-bp minimized ohb DNA region conferred to P. putida PB2440 the ability to grow on 2-CBA as a sole carbon source. Strain PB2440(pE43) also oxidized but did not grow on 2,4-dCBA, 2,5-dCBA, or 2,6-dCBA. Terminal oxidoreductase ISPOHBstructural genes ohbA and ohbB, which encode polypeptides with molecular masses of 20,253 Da (β-ISP) and 48,243 Da (α-ISP), respectively, were identified; these proteins are in accord with the 22- and 48-kDa (as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis) polypeptides synthesized inE. coli and P. aeruginosa parental strain 142. The ortho-halobenzoate 1,2-dioxygenase activity was manifested in the absence of ferredoxin and reductase genes, suggesting that the ISPOHB utilized electron transfer components provided by the heterologous hosts. ISPOHB formed a new phylogenetic cluster that includes aromatic oxygenases featuring atypical structural-functional organization and is distant from the other members of the family of primary aromatic oxygenases. A putative IclR-type regulatory gene (ohbR) was located upstream of the ohbAB genes. An open reading frame (ohbC) of unknown function that overlaps lengthwise with ohbB but is transcribed in the opposite direction was found. TheohbC gene codes for a 48,969-Da polypeptide, in accord with the 49-kDa protein detected in E. coli. The ohbgenes are flanked by an IS1396-like sequence containing a putative gene for a 39,715-Da transposase A (tnpA) at positions 4731 to 5747 and a putative gene for a 45,247-Da DNA topoisomerase I/III (top) at positions 346 to 1563. Theohb DNA region is bordered by 14-bp imperfect inverted repeats at positions 56 to 69 and 5984 to 5997.
2
Watanabe, Noboru. "A Note on Complexities by Means of Quantum Compound Systems." Entropy 22, no. 3 (March 5, 2020): 298. http://dx.doi.org/10.3390/e22030298.
Full textAbstract:
It has been shown that joint probability distributions of quantum systems generally do not exist, and the key to solving this concern is the compound state invented by Ohya. The Ohya compound state constructed by the Schatten decomposition (i.e., one-dimensional orthogonal projection) of the input state shows the correlation between the states of the input and output systems. In 1983, Ohya formulated the quantum mutual entropy by applying this compound state. Since this mutual entropy satisfies the fundamental inequality, one may say that it represents the amount of information correctly transmitted from the input system through the channel to the output system, and it may play an important role in discussing the efficiency of information transfer in quantum systems. Since the Ohya compound state is separable state, it is important that we must look more carefully into the entangled compound state. This paper is intended as an investigation of the construction of the entangled compound state, and the hybrid entangled compound state is introduced. The purpose of this paper is to consider the validity of the compound states constructing the quantum mutual entropy type complexity. It seems reasonable to suppose that the quantum mutual entropy type complexity defined by using the entangled compound state is not useful to discuss the efficiency of information transmission from the initial system to the final system.
3
Watanabe, Noboru. "Some Aspects of Complexities for Quantum Processes." Open Systems & Information Dynamics 16, no. 02n03 (September 2009): 293–304. http://dx.doi.org/10.1142/s1230161209000232.
Full textAbstract:
In quantum information theory, Emch, Conne, and Stormer were the first who studied the complexity of quantum dynamical processes. After that, Ohya introduced the [Formula: see text]-mixing entropy for general quantum systems and he defined the mean entropy and the mean mutual entropy for quantum dynamical systems based on the [Formula: see text]-mixing entropy. Conne, Narnhoffer and Thirring introduced the dynamical entropy (CNT entropy) and several researchers discussed this concept. Alicki and Fannes defined a different dynamical entropy — AF entropy. In 1995, Voiculescu proposed the dynamical approximation entropy. Accardi, Ohya and Watanabe defined yet another dynamical entropy (AOW entropy) through a quantum Markov process in 1997. In 1999, Kossakowski, Ohya and Watanabe introduced the dynamical entropy (KOW entropy) with respect to completely positive maps. In this paper, we discuss the complexity of quantum dynamical processes to calculate the dynamical entropy for noisy optical channels.In order to discuss the efficiency of information communication processes, a measure of complexity of initial state itself and a measure of transmitted complexity through communication channels are necessary. Quantum entropies were formulated on the basis of the quantum probability theory. In quantum communication systems, von Neumann entropy and Ohya mutual entropy relate to these measures of complexities, respectively. Recently, several mutual entropy type measures (Lindblad-Nielsen entropy and coherent entropy) were defined making use of entropy exchange with respect to a channel and initial state. In this paper, we show which of the measures is the most suitable one for discussing the efficiency of information transmission for quantum processes.
4
Juteau, Pierre, Valérie Côté, Marie-France Duckett, Réjean Beaudet, François Lépine, Richard Villemur, and Jean-Guy Bisaillon. "Cryptanaerobacter phenolicus gen. nov., sp. nov., an anaerobe that transforms phenol into benzoate via 4-hydroxybenzoate." International Journal of Systematic and Evolutionary Microbiology 55, no. 1 (January 1, 2005): 245–50. http://dx.doi.org/10.1099/ijs.0.02914-0.
Full textAbstract:
An anaerobic bacterium that transforms phenol and 4-hydroxybenzoate (4-OHB) into benzoate, strain LR7.2T, was isolated from a culture originating from a mixture of swamp water, sewage sludge, swine waste and soil. Cells of strain LR7.2T are Gram-positive short rods (1×2 μm) that are electron-dense when observed by electron microscopy. The optimum pH and temperature for growth and transformation activity of 4-OHB are 7·5–8·0 and 30–37 °C, respectively. The bacterium does not use sulphate, thiosulphate, nitrate, nitrite, FeCl3, fumarate or arsenate as an electron acceptor. It does not normally use sulphite, although stimulation of growth and 4-OHB transformation activity at a low concentration (up to 2 mM) has been reported previously under different culture conditions. The presence of 4-OHB or phenol is essential for growth; transformation of 4-OHB or phenol into benzoate is used to produce energy for growth. Using [6D]-phenol, 4-OHB was shown to be an intermediate in the transformation of phenol into benzoate. No spore was observed. The bacterium has a DNA G+C content of 51 mol% and its major membrane fatty acid is anteiso-C15 : 0. The 16S rRNA gene sequence of strain LR7.2T shows only 90 % similarity to its closest relative (Pelotomaculum thermopropionicum). From these results, a new taxon is proposed: Cryptanaerobacter phenolicus gen. nov., sp. nov. The type strain is LR7.2T (=ATCC BAA-820T=DSM 15808T).
5
Tardif, Annie, Nathalie Julien, Amélie Pelletier, Gaétan Thibault, Ashok K. Srivastava, Jean-Louis Chiasson, and Lise Coderre. "Chronic exposure to β-hydroxybutyrate impairs insulin action in primary cultures of adult cardiomyocytes." American Journal of Physiology-Endocrinology and Metabolism 281, no. 6 (December 1, 2001): E1205—E1212. http://dx.doi.org/10.1152/ajpendo.2001.281.6.e1205.
Full textAbstract:
Type 1 and type 2 diabetic patients often show elevated plasma ketone body concentrations. Because ketone bodies compete with other energetic substrates and reduce their utilization, they could participate in the development of insulin resistance in the heart. We have examined the effect of elevated levels of ketone bodies on insulin action in primary cultures of adult cardiomyocytes. Cardiomyocytes were cultured with the ketone body β-hydroxybutyrate (β-OHB) for 4 or 16 h, and insulin-stimulated glucose uptake was evaluated. Although short-term exposure to ketone bodies was not associated with any change in insulin action, our data demonstrated that preincubation with β-OHB for 16 h markedly reduced insulin-stimulated glucose uptake in cardiomyocytes. This effect is concentration dependent and persists for at least 6 h after the removal of β-OHB from the media. Ketone bodies also decreased the stimulatory effect of phorbol 12-myristate 13-acetate and pervanadate on glucose uptake. This diminution could not be explained by a change in either GLUT-1 or GLUT-4 protein content in cardiomyocytes. Chronic exposure to β-OHB was associated with impaired protein kinase B activation in response to insulin and pervanadate. These results indicate that prolonged exposure to ketone bodies altered insulin action in cardiomyocytes and suggest that this substrate could play a role in the development of insulin resistance in the heart.
6
Imaizumi, Fumitoshi, Satoshi Tsuchiya, and Okihiro Ohsaka. "Behaviour of debris flows located in a mountainous torrent on the Ohya landslide, Japan." Canadian Geotechnical Journal 42, no. 3 (June 1, 2005): 919–31. http://dx.doi.org/10.1139/t05-019.
Full textAbstract:
Although information on the behaviour of debris flow in the initiation zone is important for the development of mitigative measures, field data regarding this behaviour are scarce. This research examines the behaviour of debris flow in the initiation zone, based on field observations in the upper Ichinosawa catchment of the Ohya landslide in Japan. In spring 1998, a monitoring system, consisting of video cameras, ultrasonic sensors, capacitive water depth probes, and water pressure sensors (WPS), was installed to assess the behaviour of debris flows in the initiation zone. On the basis of video image analysis, we found that main flow phases during debris-flow events consisted of flow containing largely muddy water and flow containing largely cobbles and boulders. Data obtained from ultrasonic sensors and WPS show that the former flow type (muddy flow) has large amounts of interstitial water throughout its mass, whereas the latter flow type has an unsaturated layer in the upper portion. Results indicate that the concentration of solids in debris flows differs from flow to flow. Debris flows in the upper Ichinosawa catchment cause both erosion and deposition and exhibit changes in their concentration of solids.Key words: debris flow, Ohya landslide, flow behaviour, observation, initiation zone.
7
Guerci, Bruno, Laurent Meyer, Agnès Sallé, Anne Charrié, Brigitte Dousset, Olivier Ziegler, and Pierre Drouin. "Comparison of Metabolic Deterioration between Insulin Analog and Regular Insulin after a 5-Hour Interruption of a Continuous Subcutaneous Insulin Infusion in Type 1 Diabetic Patients1." Journal of Clinical Endocrinology & Metabolism 84, no. 8 (August 1, 1999): 2673–78. http://dx.doi.org/10.1210/jcem.84.8.5912.
Full textAbstract:
An interruption of continuous sc insulin infusion (CSII) of the insulin analog lispro should result in a more rapid metabolic deterioration of type 1 diabetic patients because of its pharmacokinetic characteristics. We analyzed the metabolic changes occurring during a 5-h interruption of CSII and the 5 h after restarting the pump in 10 type 1 diabetic patients. The study was a randomized, cross-over, open label design comparing insulin analog [Lispro (LP)] and regular insulin [Velosuline (VE)]. Plasma glucose, free insulin, glucagon,β -hydroxybutyrate (β-OHB), and nonesterified fatty acids (NEFA) were measured every hour from 0700 h (time zero) to 1700 h (600 min). After stopping CSII, the plasma glucose level was significantly higher in the LP group than in the VE group (P < 0.05–0.01). The plasma free insulin level decreased significantly with the two treatments, but was significantly lower with LP than with VE (P < 0.05–0.01). Plasma NEFA increased more rapidly and was significantly higher in the LP group than in the VE group (P < 0.01–0.05). Plasma β-OHB increased earlier with LP, but was not statistically different between the treatments. After restarting the pump, plasma glucose decreased with LP, but continued to increase with VE, and the plasma free insulin peak occurred earlier and was greater with LP than with VE (P < 0.05). Plasma NEFA and β-OHB levels decreased significantly with the two treatments, but more dramatically with LP treatment. Thus, a short interruption of Lispro in CSII is associated with an earlier, greater metabolic deterioration, but Lispro corrected this metabolic deterioration more effectively.
8
Chestnutt, D. M. B. "The effect of contrasting silages offered in mid and late pregnancy on the performance of breeding ewes." Animal Science 49, no. 3 (December 1989): 435–41. http://dx.doi.org/10.1017/s0003356100032633.
Full textAbstract:
ABSTRACTEarly-cut, precision-chopped (EP) and late-cut, flail-harvested (LF) silages were offered ad libitum to breeding ewes during mid and late pregnancy in two experiments. Silages offered in late pregnancy were factorially arranged with silages offered in mid pregnancy giving four silage treatments. Voluntary drymatter intake, ewe weight change, lamb birth weight and blood levels of 3-hydroxybutyrate (3-OHB) and non-esterifiable free fatty acids (NEFA) were measured. The intake of LF silage was proportionately 0·61 and 0·72 of that of EP silage in mid and late pregnancy respectively. While type of silage given in mid pregnancy did not affect the mean silage intake in weeks 15 to 20 of pregnancy, the rate of decline in intake was higher and the intake during week 20 of pregnancy was lower following the feeding of EP silage in mid pregnancy. Despite a considerably lower level of body reserves associated with LF silage given in mid pregnancy, there was little effect on levels of 3-OHB or NEFA in late pregnancy or on lamb birth weight.
9
Imaizumi, Fumitoshi, Yuichi S. Hayakawa, Norifumi Hotta, Haruka Tsunetaka, Okihiro Ohsaka, and Satoshi Tsuchiya. "Relationship between the accumulation of sediment storage and debris-flow characteristics in a debris-flow initiation zone, Ohya landslide body, Japan." Natural Hazards and Earth System Sciences 17, no. 11 (November 14, 2017): 1923–38. http://dx.doi.org/10.5194/nhess-17-1923-2017.
Full textAbstract:
Abstract. Debris flows usually occur in steep mountain channels and can be extremely hazardous as a result of their destructive power, long travel distance, and high velocity. However, their characteristics in the initiation zones, which could possibly be affected by temporal changes in the accumulation conditions of the storage (i.e., channel gradient and volume of storage) associated with sediment supply from hillslopes and the evacuation of sediment by debris flows, are poorly understood. Thus, we studied the relationship between the flow characteristics and the accumulation conditions of the storage in an initiation zone of debris flow at the Ohya landslide body in Japan using a variety of methods, including a physical analysis, a periodical terrestrial laser scanning (TLS) survey, and field monitoring. Our study clarified that both partly and fully saturated debris flows are important hydrogeomorphic processes in the initiation zones of debris flow because of the steep terrain. The predominant type of flow varied temporally and was affected by the volume of storage and rainfall patterns. Fully saturated flow dominated when the total volume of storage was < 10 000 m3, while partly saturated flow dominated when the total volume of the storage was > 15 000 m3. Debris flows form channel topography which reflects the predominant flow types during debris-flow events. Partly saturated debris flow tended to form steeper channel sections (22.2–37.3°), while fully saturated debris flow tended to form gentler channel sections ( < 22.2°). Such relationship between the flow type and the channel gradient could be explained by a simple analysis of the static force at the bottom of the sediment mass.
10
Leblanc, N., and J. R. Hume. "D 600 block of L-type Ca2+ channel in vascular smooth muscle cells: comparison with permanently charged derivative, D 890." American Journal of Physiology-Cell Physiology 257, no. 4 (October 1, 1989): C689—C695. http://dx.doi.org/10.1152/ajpcell.1989.257.4.c689.
Full textAbstract:
It has been reported that D 600 blocks the high-threshold Ca2+ channel (L-type) from the outside in isolated vascular and ileal smooth muscle cells of the rabbit (Y. Ohya, K. Terada, K. Kitamura, and H. Kuriyama. Pfluegers Arch. 408: 80-82, 1987). We have reinvestigated this hypothesis by comparing the effects of external and internal applications of D 600 and the permanently charged quaternary derivative D 890 on the whole cell Ca2+ current (Ica) recorded in vascular smooth muscle cells isolated from the rabbit portal vein. At low frequencies of stimulation (0.05 Hz), externally applied D 600 inhibited Ica in a dose-dependent fashion, with a complete block occurring at 10(-4) M. D 600 was approximately 1,000 times more potent than D 890 for causing inhibition of Ica using this protocol. During a train of stimulations at 0.5 Hz, D 600 (10(-6) M) produced a minor additional frequency-dependent block of Ica, as shown in other preparations. During superfusion with D 890 (10(-4) M), a similar protocol produced little if any decline in the amplitude of Ica. No evidence of block could be detected during intracellular dialysis of D 600 (10(-4) M). At the same concentration, intracellular application of D 890 produced a slow block of Ica. To test whether D 600 could be effectively dialysed using a patch micropipette, similar experiments were performed in cardiac ventricular myocytes. In this preparation, intracellular dialysis of D 600 induced a rapid inhibition of the Ica.(ABSTRACT TRUNCATED AT 250 WORDS)
Dissertations / Theses on the topic "Ohyb tyče"
1
Benešovský, Marek. "Výpočtová simulace kosoúhlého rovnání tyčí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232108.
Full textAbstract:
Final thesis describes two variants of computational models to simulate cross-roll leveling of rods, which are based on the Lagrangian approach to describe the continuum. Implementation of both variants was performed in ANSYS software, and their main difference lies in the choice of the type of elements for the discretization. An integral part of this thesis is the description of the principle, which is an evaluation of the curvature of the rod after completion of the simulation leveling. In the other part of the work are presented the results, which are then compared with realized experiment and simulation algorithm for cross-roll leveling based on the Euler approach. The final part is dedicated to the optimal settings of the leveller.
2
Poljak, Peter. "Průzkum a definice mezních parametrů ohybu u stabilizačních tyčí automobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230518.
Full textAbstract:
Submitted master’s thesis deals with rotary draw bending of tubes as a subprocess of automobile’s stabilizer bar production. The main goal of the thesis is to clarify the influence of the process parameters of the bend on the resulting shape and properties of the product. Submitted thesis includes theoretical description of the chosen tube bending technology, description of defects and possibilities of their removal. The description of the bending machine used for stabilizer bars production is done afterwards. Practical part of the thesis includes experiments clarifying influence of parameters on the resulting shape of the stabilizer bar.
3
Fara, Michael. "Kontrola přesnosti ohybu materiálu u klempířských ohýbaček VanMark." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417741.
Full textAbstract:
This diploma thesis deals with surface forming methods, especially accuracy and measurement of sheet metal bending on Van Mark brakes. The aim of the work was to make bends of samples in the range of 30 °, 60 °, 90 ° and 120 °. The size of the bend of the examined samples is influenced by the suspension of the sheet, which is not taken into account in the currently used type of protractor. The samples were then analyzed on two types of measuring devices - tactile and optical. After measuring, results were evaluated and plotted in the appropriate graphs. Based on the measurement results, a new type of protractor was designed, which will make the user's work easier and more efficient.
4
Čupr, Pavel. "Výpočtová simulace rovnání tyčí nekruhového průřezu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232107.
Full textAbstract:
The purpose of this study is to compare two possible methods of computational modeling of straightening long profiles. The study presents fundamentals of the straightening process, basic principles of the finite element method and the principle of fast algorithm based on Eulerian description of motion of continuum. The study investigates how the two methods are computationally demanding and precise. Finally, the acquired results are summarised and the effectiveness of both algorithms is assessed.
Book chapters on the topic "Ohyb tyče"
1
MURAKI, NAOHUMI, and MASANORI OHYA. "Entropy Functionals of Kolmogorov–Sinai Type and Their Limit Theorems." In Selected Papers of M Ohya, 347–55. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812794208_0023.
Full text