Articles de revues : « Dual pov »

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Subramanian, Shalini, Deepa Shetty, Poornima Shivanna, Priyanka Das et Medha Phadke. « Post-operative vomiting after pediatric strabismus surgery : A comparison of propofol versus sevoflurane anaesthesia ». Journal of Anaesthesiology Clinical Pharmacology 40, n^o 2 (avril 2024) : 305–11. http://dx.doi.org/10.4103/joacp.joacp_363_22.

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Abstract Background and Aims: Squint surgery is a risk factor for postoperative vomiting (POV) in children. This study was designed to compare the incidence of POV in children undergoing strabismus surgery under balanced anesthesia with sevoflurane versus intravenous anesthesia with propofol. Material and Methods: In this prospective randomized controlled study conducted in a tertiary care ophthalmology hospital, 70 ASA I-II children aged 1-12 years undergoing strabismus surgery were randomized to two groups –Group S (sevoflurane-based anesthesia) and Group P (propofol-based anesthesia) for maintenance. The surgical details, intraoperative hemodynamic parameters, recovery characteristics, and emergence delirium were recorded. Any episode of postoperative vomiting in the 0-2 hours, 2-6 hours, and 6-24 hours period was noted. Rescue antiemetic was administered if there was more than one episode of vomiting. Results: Both the groups were similar with respect to demographic and surgical details. The average duration of surgery was 118.2 ± 41.88 min in group S and 137.32 ± 39.09 min in group P (P = .05). Four children in group S (11.4%) and one child in group P (2.9%) had POV in the first 24 hours but this was not statistically significant (P = .36). The median time to discharge from post anesthesia care unit was significantly less (P = .02) in the P group (50 min) than in the S group (60 min). Conclusion: Propofol-based anesthesia does not offer advantage over sevoflurane, in reducing POV after squint surgery, when dual prophylaxis with dexamethasone and ondansetron is administered. It, however, reduces the duration of stay in the post anesthesia care unit.

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Ogunleye, R. I., F. A. Bankole, G. Olaoye et O. B. Fawole. « Assessment of cross compatibility in three strains of Pleurotus species and yield attributes of the surviving progenies ». Agrosearch 19, n^o 2 (21 juillet 2020) : 1–15. http://dx.doi.org/10.4314/agrosh.v19i2.1.

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Despite the upsurge in mushroom consumption in Nigeria, breeding of new strains for improved quality, early maturity and biological efficiency is a new concept. This study investigated cross-compatibility among three mushroom parental strains (Pleurotus ostreatus, P. tuber-regium and Lentinus edodes) and assessed yield attributes in parents and the progenies of compatible strains – (P. ostreatus and L. edodes). The crosses were carried out at the Department of Biology, Kogi State University, Anyigba, Kogi State, Nigeria using the dual culture technique. Among the twenty-seven combinations, only five (5) hybridized successfully. Crosses between P. tuber-regium and the other two strains (P. ostreatus and L. edodes) failed to yield viable progenies while the cross between P. ostreatus (po) and L. edodes (le) yielded five (5) new strains. Data collected on morphological and yield attributes of the compatible parents and the new strains revealed that three (3) strains (po1 x le1, po3 x le2 and po3 x le3) produced white fluffy colony growth morphology which represented the characters of P. ostreatus while the remaining two strains (po2 x le1 and po2 x le3) had milky, appressed morphology, representing the attributes of L. edodes. The strain from cross combination po3 x le3 completed spawn run in 37 days which was the fastest (ρ < 0.05) among the strains and also exhibited superiority (ρ < 0.05 or ρ < 0.01) for all other attributes including fresh yield and biological efficiency over other strains and the two parents. Two other strains viz. po2 x le3 and po3 x le2 also exhibited significantly (ρ < 0.05) higher yield and biological efficiency than either of the parental strains. These new strains can be exploited for commercial production of improved mushrooms in Nigeria. Key words: Cross Compatibility, Pleurotus, Dual Culture, Yield, Biology efficiency

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Wang, Jun, Yanbin Liu et Zhiyuan Zhang. « Compound control of rail pressure in dual common rail injection system based on a dual regulating valve ». Journal of Physics : Conference Series 2591, n^o 1 (1 septembre 2023) : 012015. http://dx.doi.org/10.1088/1742-6596/2591/1/012015.

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Abstract To improve the performance of fuel injection in high power diesel engines, high pressure dual common rail system (HPDCRS) is made to match high power diesel engine, proportional-integral-derivative (PID) compound control for rail pressure is proposed based on dual regulating valve: pressure balance valve (PBV) and pressure control valve (PCV), a PID hybrid neural network (PID-HNN) is provided to complete tuning and match of PID coefficient automatically, simulation control modelling of rail pressure is made by MATLAB software, pressure control comparison of dual common rail is made with PID compound control method. The pressure control effects illustrated that PID compound control of dual regulating valves can rapidly trace different target pressure and reduce rails pressure wavelet, and feasibility of compound control is verified in dual common rail pressure.

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Geschwindner, C., K. Westrup, A. Dreizler et B. Böhm. « Pulse Picking PIV : A Single-Cavity Fiber Laser System For Highly Flexible Repetition Rates And Pulsing Schemes ». Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 20 (11 juillet 2022) : 1–15. http://dx.doi.org/10.55037/lxlaser.20th.105.

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A novel single-cavity laser system with flexible pulsing schemes suitable for particle image velocimetry (PIV) measurements is presented. The system is based on the concept of picking selected pulse pairs from an ultra-high repetition rate fiber laser which enables time-resolved and conventional dual-pulse PIV at highly flexible recording frame rates. Pulse picking PIV laser systems allow for the use of high-quality low speed dual-frame PIV cameras as well as highspeed cameras in both dual-frame and continuous recording modes, enabling the investigation of highly-transient phenomena at limited fields of view using time-resolved PIV as well as statistical PIV measurements with larger fields of view and higher spatial resolutions. The single-cavity output additionally avoids the alignment of laser beams of laser pulses, which is otherwise necessary in conventional dual-cavity PIV laser systems. Two pulse picking systems were set up and tested: An acousto-optic deflector selecting pulses using the diffraction across an acoustic wave and an electro-optic modulator rotating the polarization state of selected pulses in a Pockels cell. The performance of both systems was evaluated in terms of achievable inter-pulse durations, beam profile alterations, and pulse energy losses caused by the introduction of additional optical elements in the beam path.

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Liu, Zhi Rong, Jun Wei Wang et Rui Zhu. « Fluid Experimental Research on Dual-Vortex Interaction Instability ». Advanced Materials Research 459 (janvier 2012) : 195–98. http://dx.doi.org/10.4028/www.scientific.net/amr.459.195.

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A series of dual-vortex fulid visualization and interaction instability experiments are undertaken with PIV (Particle Image Velocimetry) system under various experimental parameters sets. The motion characteristics and the circulation-time curves of the dual-vortex are presented through PIV processing and analysis. The dual-vortex distance b=50mm, main wingtip angle α1=10° & side wingtip angle α2=8° are optimum experimental parameters for vortices dissipation, the most vortex strength is reduced by 30%-40%

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Du, Shuang, et Chun Cheng Zuo. « The Simulation Study of Pure Electric Vehicle with Dual-Energy Storage System Based on Matlab/Simulink ». Applied Mechanics and Materials 437 (octobre 2013) : 213–16. http://dx.doi.org/10.4028/www.scientific.net/amm.437.213.

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Through matlab/simulink, the simulation models of Pure Electric Vehicle (PEV) with Dual-Energy Storage System (DESS) composed of batteries and ultra-capacitor are established. The paper designs the fuzzy control strategy for DESS and puts PEV with DESS and PEV with Single-Energy Storage System (SESS) state of capacity (SOC) of batteries comparison. Also it analyses advantages and prospects of development for PEV with DESS.

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Farquharson, G., W. N. Junek, A. Ramanathan, S. J. Frasier, R. Tessier, D. J. McLaughlin, M. A. Sletten et J. V. Toporkov. « A Pod-Based Dual-Beam SAR ». IEEE Geoscience and Remote Sensing Letters 1, n^o 2 (avril 2004) : 62–65. http://dx.doi.org/10.1109/lgrs.2004.826553.

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Davenport, John J., Michelle Hickey, Justin P. Phillips et Panayiotis A. Kyriacou. « Dual pO2/pCO2fibre optic sensing film ». Analyst 142, n^o 10 (2017) : 1711–19. http://dx.doi.org/10.1039/c7an00173h.

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Hirayama, Tetsu, Mamoru Tanahashi et Toshio Miyauchi. « E214 Development of Time-Resolved Dual-Plane Stereoscopic PIV ». Proceedings of the Thermal Engineering Conference 2006 (2006) : 351–52. http://dx.doi.org/10.1299/jsmeted.2006.351.

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LUO, ZHEN-BING, ZHI-XUN XIA, BING LIU, DE-QUAN WANG, JIAN-XIN HU et LIN WANG. « PIV MEASUREMENTS OF DUAL SYNTHETIC JETS ACTUATOR DRIVEN BY ELECTRICAL FACTORS ». Modern Physics Letters B 23, n^o 03 (30 janvier 2009) : 417–20. http://dx.doi.org/10.1142/s0217984909018540.

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A dual synthetic jets actuator driven by different electrical factors was investigated using particle image velocimetry (PIV). A transfer-phase and sub-frequency technique was provided to capture the arbitrary phase of the dual synthetic jets, and a transfer-phase to equal technique was provided to determine the phase of the dual synthetic jets. The results show that both the amplitude and frequency of the electrical forcing voltages vastly affect the flow-field of the dual synthetic jets actuator. Both the forcing frequency and the driving voltage amplitudes contribute to the pressure difference and the area of the lower pressure, which determines the interactions of dual synthetic jets. The dual synthetic jet actuator exits a circumscription of electrical factors in which the actuator works efficiently.

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Ye, ZhiJian, Qi Gao, HongPing Wang, RunJie Wei et JinJun Wang. « Dual-basis reconstruction techniques for tomographic PIV ». Science China Technological Sciences 58, n^o 11 (19 août 2015) : 1963–70. http://dx.doi.org/10.1007/s11431-015-5909-x.

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Liang, Xianfeng, Luxi Tan, Zitong Liu, Yanping Ma, Guanxin Zhang, Lin Wang, Shayu Li, Lichun Dong, Jing Li et Wei Chen. « Poly(naphthalene diimide) vinylene : solid state red emission and semiconducting properties for transistors ». Chemical Communications 53, n^o 36 (2017) : 4934–37. http://dx.doi.org/10.1039/c7cc01372h.

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Pot, Anna, Merel Keijzer et Kees de Bot. « Do low L2 abilities impede healthy aging for migrant older adults in the Netherlands ? » Dutch Journal of Applied Linguistics 7, n^o 1 (10 août 2018) : 109–20. http://dx.doi.org/10.1075/dujal.17017.pot.

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Abstract Research towards aging of migrant populations has so far mostly focused on (bio)medical and psychological aspects. Here we explore to what extent second language ability is a factor influencing the healthy aging process of older Turkish migrants in the Netherlands. To get a first understanding of the linguistic situation of older migrants within this setting, interviews with ten healthcare consultants1 with insight into their local Turkish community were conducted, forming a ‘needs-analysis’ of this group. It emerged that older migrants rely heavily on their ethnically close-knit networks for information and care. In communicating their healthcare needs to others outside the family, the older migrants experience language barriers, directly resulting from low L2 proficiency and L2 anxiety. These barriers prevent access to health information and induce dependence. This initial exploration of the interplay between language and aging in a migrant population can be used as input into more advanced, empirical investigations.

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Si-Mohamed, Salim A., Léa Zumbihl, Ségolène Turquier, Sara Boccalini, Jean-Francois Mornex, Philippe Douek, Vincent Cottin et Loic Boussel. « Lung Dual-Energy CT Perfusion Blood Volume as a Marker of Severity in Chronic Thromboembolic Pulmonary Hypertension ». Diagnostics 13, n^o 4 (17 février 2023) : 769. http://dx.doi.org/10.3390/diagnostics13040769.

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In chronic thromboembolic pulmonary hypertension (CTEPH), assessment of severity requires right heart catheterization (RHC) through cardiac index (CI). Previous studies have shown that dual-energy CT allows a quantitative assessment of the lung perfusion blood volume (PBV). Therefore, the objective was to evaluate the quantitative PBV as a marker of severity in CTEPH. In the present study, thirty-three patients with CTEPH (22 women, 68.2 ± 14.8 years) were included from May 2017 to September 2021. Mean quantitative PBV was 7.6% ± 3.1 and correlated with CI (r = 0.519, p = 0.002). Mean qualitative PBV was 41.1 ± 13.4 and did not correlate with CI. Quantitative PBV AUC values were 0.795 (95% CI: 0.637–0.953, p = 0.013) for a CI ≥ 2 L/min/m2 and 0.752 (95% CI: 0.575–0.929, p = 0.020) for a CI ≥ 2.5 L/min/m2. In conclusion, quantitative lung PBV outperformed qualitative PBV for its correlation with the cardiac index and may be used as a non-invasive marker of severity in CTPEH patients.

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Monsalve G., A., A. Artigas A., F. Castro C., R. Colás et Y. Houbaert. « Caracterización de aceros dual-phase obtenidos por laminación en caliente ». Revista de Metalurgia 47, n^o 1 (28 février 2011) : 5–14. http://dx.doi.org/10.3989/revmetalmadrid.0914.

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Praël, Isabelle, Wolfgang Wuest, Rafael Heiss, Marco Wiesmueller, Markus Kopp, Michael Uder et Matthias S. May. « Dual-Energy Lung Perfusion in Portal Venous Phase CT—A Comparison with the Pulmonary Arterial Phase ». Diagnostics 11, n^o 11 (26 octobre 2021) : 1989. http://dx.doi.org/10.3390/diagnostics11111989.

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Pulmonary arterial dual-energy (aDE) CT is an established technique for evaluating pulmonary perfusion blood volume (PBV). As DECT protocols are increasingly used for thoraco-abdominal CT, this study assessed image quality and clinical findings in portal–venous phase dual-energy (vDE) CT and compared it to aDE. In 95 patients, vDE-CT was performed using a dual-source scanner (70/Sn150 kV, 560/140 ref.mAs). Pulmonary triggered aDE-CT served as reference (n = 94). PBV was reconstructed using a dedicated algorithm. Mean relative attenuation was measured in the pulmonary trunk, aorta, and segmented lung parenchyma. A distribution ratio (DL) between vessels and parenchyma was calculated to assess the iodine uptake of the lung parenchyma. Subjective overall diagnostic image quality was assessed for PBV images on a five-point Likert scale. Image artifacts were classified into five groups based on scale rating and compared between vDE and aDE. Pathological findings were correlated with the anatomical image datasets. Mean relative attenuation of the lung parenchyma was comparable in both groups (vDE: 23 ± 6 HU and aDE: 22 ± 7 HU), but significantly lower in the vessels of vDE. Therefore, iodine uptake of the lung parenchyma was significantly higher in vDE (DL: 10% vs. 8%, p < 0.01). The subjective overall image quality of the PBV images was comparable (p = 0.5). Rotation and streak artifacts were found in most of the patients (>86%, both p > 0.6). Dual-source artifacts were found in only a few patients in both groups (vDE 5%, aDE 7%, p = 0.5). Recess and subpleural artifacts were increased in vDE (vDE 53/27%, aDE 24/7%, both p < 0.001). Pathological findings were found in 19% of the vDE patients and 59% of the aDE patients. Comparable objective and subjective image quality of lung perfusion can be obtained in vDE and aDE. Iodine uptake of the lung parenchyma is increased in vDE compared to aDE, suggesting an interstitial pooling effect. Knowledge of the different appearances of artifacts will aid in the interpretation of the images. Additional clinical information about the lung parenchyma can be provided by PBV evaluation in vDE.

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HANARI, Toshihide, et Jun SAKAKIBARA. « Dual-plane stereo-PIV study on tornado-like vortex in water ». Transaction of the Visualization Society of Japan 30, n^o 7 (2010) : 47–54. http://dx.doi.org/10.3154/tvsj.30.47.

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Koymen, Safiye Selin, Nazmiye Donmez, Vildan Betul Yenigun, Fatemeh Bahadori et Abdurrahim Kocyigit. « Investigating the Cytotoxicity of Dual-Cure Bulk-Fill Resin Materials on L929 Cells ». Prosthesis 4, n^o 3 (15 août 2022) : 447–57. http://dx.doi.org/10.3390/prosthesis4030036.

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The aim of this in vitro study was to investigate cytotoxic effects of dual-cure bulk-fill resin materials polymerized with a third-generation LED light-curing unit (LCU) on L929 fibroblast cells in terms of morphology and viability. Three novel dual-cure, flowable bulk-fill materials (Fill-Up!™), a bioactive material (ACTIVA™ BioACTIVE-RESTORATIVE™), and a dual-cure bulk-fill composite material (HyperFIL® HAp) polymerized by LED LCU (VALO™ Cordless) were tested. Each material was placed in plastic rings (4 mm × 5 mm) in a single layer. Unpolymerized rings filled with each material were placed in direct contact with cells and then polymerized. After polymerization, the removed medium was readded to wells. In this study, four control groups were performed: the medium-free control group, medium control group, physical control group, and light applied control group. Three samples were prepared from each group. After 24 h, the morphology of cells was examined and a WST-1 test was performed. The percentage of cell viability (PCV) of each group was calculated. The experiment was repeated three times. Data were analyzed by a Kruskal–Wallis Test and a Mann–Whitney U test. p < 0.05 was considered significant. The PCV of all groups were found to be significantly lower than the medium control group (p < 0.05). The lowest PCV was obtained in HyperFIL® Hap, while highest was in the Fill-Up!™. In the morphology of cells related to the experimental groups, it was observed that the spindle structures of cells were disrupted due to cytotoxicity; cells became rounded and intercellular space increased. There were no significant differences between the control groups (p > 0.05). All control groups showed acceptable PCV (>70%) and cells were spindle-like, similar to the original fibroblast cells. It can be suggested that clinicians should pay attention when applying dual-cure bulk-fill materials in deep cavities, or they should use a liner material under these materials.

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Díaz Caro, Carlos, Jorge Onrubia Fernández et Jesús Pérez Mayo. « Progressivity and redistribution by Income Sources in the Spanish Dual Income Tax ». Revista Hacienda Pública Espñola 206, n^o 3 (29 septembre 2013) : 57–87. http://dx.doi.org/10.7866/hpe-rpe.13.3.3.

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Lin Cui, Lin Cui, Caiyin Wang Lin Cui, Zhiwei Zhang Caiyin Wang, Xiaoyong Yu Zhiwei Zhang et Fanghui Zha Xiaoyong Yu. « Fusing Dual Geo-Social Relationship and Deep Implicit Interest Topic Similarity for POI Recommendation ». 網際網路技術學刊 23, n^o 4 (juillet 2022) : 791–99. http://dx.doi.org/10.53106/160792642022072304014.

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<p>Nowadays, POI recommendation has been a hot research area, which are almost based on incomplete social relationships and geographical influence. However, few research simultaneously focuses on the refined social relationship and the user deep implicit topic similarity under a reachable region. Under this background, a novel Dual Geo-Social Relationship and Deep Implicit Interest Topic Similarity mining under a Reachable Region for POI Recommendation (DDR-PR) is proposed. DDR-PR first adopts kernel density estimation to compute the user checking-in reachable area. Under the reachable area, the combined relationship similarity based on the link relationship and common check-in social relationship is computed out. Then, the deep implicit interest topic similarity between users is mined out adopting the proposed topic model RTAU-TCP. We formulate the combined relationship similarity and implicit interest topic similarity as two regularization terms to incorporate into matrix factorization, which can recommend new POIs for a user under his or her reachable area. Extensive experiments prove the superiority of DDR-PR.</p> <p> </p>

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HANARI, Toshihide, et Jun SAKAKIBARA. « Dual-Plane Stereo-PIV Study on Tornado-Like Vortex in Water ». Journal of the Visualization Society of Japan 27, Supplement1 (2007) : 157–58. http://dx.doi.org/10.3154/jvs.27.supplement1_157.

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Ozawa, Yoshiyuki, Yoshiharu Ohno, Hiroyuki Nagata, Keigo Tamokami, Keitaro Nishikimi, Yuka Oshima, Nayu Hamabuchi, Takahiro Matsuyama, Takahiro Ueda et Hiroshi Toyama. « Advances for Pulmonary Functional Imaging : Dual-Energy Computed Tomography for Pulmonary Functional Imaging ». Diagnostics 13, n^o 13 (6 juillet 2023) : 2295. http://dx.doi.org/10.3390/diagnostics13132295.

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Dual-energy computed tomography (DECT) can improve the differentiation of material by using two different X-ray energy spectra, and may provide new imaging techniques to diagnostic radiology to overcome the limitations of conventional CT in characterizing tissue. Some techniques have used dual-energy imaging, which mainly includes dual-sourced, rapid kVp switching, dual-layer detectors, and split-filter imaging. In iodine images, images of the lung’s perfused blood volume (PBV) based on DECT have been applied in patients with pulmonary embolism to obtain both images of the PE occluding the pulmonary artery and the consequent perfusion defects in the lung’s parenchyma. PBV images of the lung also have the potential to indicate the severity of PE, including chronic thromboembolic pulmonary hypertension. Virtual monochromatic imaging can improve the accuracy of diagnosing pulmonary vascular diseases by optimizing kiloelectronvolt settings for various purposes. Iodine images also could provide a new approach in the area of thoracic oncology, for example, for the characterization of pulmonary nodules and mediastinal lymph nodes. DECT-based lung ventilation imaging is also available with noble gases with high atomic numbers, such as xenon, which is similar to iodine. A ventilation map of the lung can be used to image various pulmonary diseases such as chronic obstructive pulmonary disease.

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Johannes, Tanja, Egbert G. Mik et Can Ince. « Dual-wavelength phosphorimetry for determination of cortical and subcortical microvascular oxygenation in rat kidney ». Journal of Applied Physiology 100, n^o 4 (avril 2006) : 1301–10. http://dx.doi.org/10.1152/japplphysiol.01315.2005.

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This study presents a dual-wavelength phosphorimeter developed to measure microvascular Po2 (μPo2) in different depths in tissue and demonstrates its use in rat kidney. The used phosphorescent dye is Oxyphor G2 with excitation bands at 440 and 632 nm. The broad spectral gap between the excitation bands combined with a relatively low light absorption of 632 nm light by tissue results in a marked difference in penetration depths of both excitation wavelengths. In rat kidney, we determine the catchments depth of the 440-nm excitation to be 700 μm, whereas the catchments depth of 632 nm is as much as 4 mm. Therefore, the measurements differentiate between cortex and outer medulla, respectively. In vitro, no difference in Po2 readings between both channels was found. On the rat kidney in vivo, the measured cortical μPo2 was on average 20 Torr higher than the medullary μPo2 over a wide Po2 range induced by variations in inspired oxygen fraction. Examples provided from endotoxemia and resuscitation show differences in responses of mean cortical and medullary Po2 readings as well as in the shape of the Po2 histograms. It can be concluded that oxygen-dependent quenching of phosphorescence of Oxyphor G2 allows quantitative measurement of μPo2 noninvasively in two different depths in vivo. Oxygen levels measured by this technique in the rat renal cortex and outer medulla are consistent with previously published values detected by Clark-type oxygen electrodes. Dual-wavelength phosphorimetry is excellently suited for monitoring μPo2 changes in two different anatomical layers under pathophysiological conditions with the characteristics of providing oxygen histograms from two depths and having a penetration depth of several millimeters.

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Regunath, Gavita S., William B. Zimmerman et Julia M. Rees. « Dual-plane PIV investigation of acoustically excited jets in a swirl nozzle ». Nonlinear Processes in Geophysics 23, n^o 2 (4 avril 2016) : 83–89. http://dx.doi.org/10.5194/npg-23-83-2016.

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Abstract. A novel dual-plane dye laser particle image velocimetry (PIV) technique used to analyze helicity and energy dissipation in an unexcited turbulent swirling jet of pressurized cold air has established that regions within the flow field of the jet exhibiting high helicity are correlated regions of high turbulent kinetic energy dissipation. This PIV configuration provides estimates of all components of the velocity gradient tensor, facilitating calculation of the helicity from the vorticity components. Application of this novel dual-plane PIV technique is extended in this study to investigate helical structures in a turbulent swirling jet where the underlying shear flow is subjected to external acoustic sinusoidal forcing in a plane perpendicular to the central axis of the jet. It was found that acoustic excitation had a significant effect on the mean velocity profile parallel to the direction of the jet. The horizontal forcing resulted in the generation of vorticity that was skewed with a pitch that favored a distribution of angles around 90° with respect to the velocity vector. The distribution of the time-averaged helicity angle indicated organized helical activity, but such activity is not dominated by large-scale coherent structures of maximal helicity.

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Regunath, G. S., W. B. Zimmerman et J. M. Rees. « Dual plane PIV investigation of acoustically excited jets in a swirl nozzle ». Nonlinear Processes in Geophysics Discussions 2, n^o 5 (4 septembre 2015) : 1407–24. http://dx.doi.org/10.5194/npgd-2-1407-2015.

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Abstract. A novel dual-plane dye laser PIV technique used to analyze helicity and energy dissipation in an unexcited turbulent swirling jet of pressurized cold air has established that regions within the flow field of the jet exhibiting high helicity are correlated with regions of high turbulent kinetic energy dissipation. This PIV configuration provides estimates of all components of the velocity gradient tensor, facilitating calculation of the helicity from the vorticity components. Application of this novel dual-plane PIV technique is extended in this study to investigate helical structures in a turbulent swirling jet where the underlying shear flow is subjected to external acoustic sinusoidal forcing in a plane perpendicular to the central axis of the jet. It was found that acoustic excitation had a significant effect on the mean velocity profile parallel to the direction of the jet. The horizontal forcing resulted in the generation of vorticity that was skewed with a pitch that favored a distribution of angles around 90° with respect to the velocity vector. The distribution of the time-averaged helicity angle indicated organized helical activity, but such activity is not dominated by large-scale coherent structures of maximal helicity.

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Levy, Chagai, et Monika Pinchas. « Maximum Likelihood Estimation of Clock Skew in IEEE 1588 with Fractional Gaussian Noise ». Mathematical Problems in Engineering 2015 (2015) : 1–24. http://dx.doi.org/10.1155/2015/174289.

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To support system-wide synchronization accuracy and precision in the sub-microsecond range without using GPS technique, the precise time protocol (PTP) standard IEEE-1588 v2 is chosen. Recently, a new clock skew estimation technique was proposed for the slave based on a dual slave clock method that assumes that the packet delay variation (PDV) in the Ethernet network is a constant delay. However, papers dealing with the Ethernet network have shown that this PDV is a long range dependency (LRD) process which may be modeled as a fractional Gaussian noise (fGn) with Hurst exponent (H) in the range of0.5<H<1. In this paper, we propose a new clock skew estimator based on the maximum likelihood (ML) technique and derive an approximated expression for the Cramer-Rao lower bound (CRLB) both valid for the case where the PDV is modeled as fGn (0.5<H<1). Simulation results indicate that our new clock skew method outperforms the dual slave clock approach and that the simulated mean square error (MSE) obtained by our new proposed clock skew estimator approaches asymptotically the developed CRLB.

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Bolaños-Navarrete, Mario Andrés, Juan David Bastidas-Rodríguez et Gustavo Adolfo Osorio. « Hysteresis control for a grid connected dual-buck inverter ». Revista UIS Ingenierías 20, n^o 1 (21 octobre 2020) : 1–10. http://dx.doi.org/10.18273/revuin.v20n1-2021001.

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Single-phase inverters are widely used in different renewable energy applications. Although the full-bridge inverter istypically used, dual-buck inverters provide an important advantage, since they eliminate the shoot-through problems. However, solutions proposed in the literature require additional inductors, use linear controllersdesigned around an operation point, or cannot be used in grid-connected applications. This paper presents a hysteresis current control of a single-phase dual-buck full-bridge inverter for grid-connected active power injection. Includes the dynamical modelin state variables, as well as analytical conditions to guarantee the evolution of the error dynamics in a set with boundaries defined by the designer. Moreover, the paper provides guidelines for the design of the dead band required for the transitions between the positive and negative semi-cycles (and vice-versa) of the grid voltage. Finally, simulation results validate the main features of the controller as well as the design of the dead band

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Mitanjali et Vaibhav Kumar Arghode. « INVESTIGATION OF DUAL COLOR BEAM SCANNING (DCBS) PIV SYSTEM ». Journal of Flow Visualization and Image Processing 28, n^o 2 (2021) : 1–41. http://dx.doi.org/10.1615/jflowvisimageproc.2021033551.

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Waldman, Rye M., et Kenneth S. Breuer. « Accurate measurement of streamwise vortices using dual-plane PIV ». Experiments in Fluids 53, n^o 5 (4 septembre 2012) : 1487–500. http://dx.doi.org/10.1007/s00348-012-1368-3.

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Wang, Binbin, Qian Liao, Harvey A. Bootsma et Pei-Fang Wang. « A dual-beam dual-camera method for a battery-powered underwater miniature PIV (UWMPIV) system ». Experiments in Fluids 52, n^o 6 (24 janvier 2012) : 1401–14. http://dx.doi.org/10.1007/s00348-012-1265-9.

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Floquet, J., F. Champagnat et S. Beneddine. « Physics-Driven PTV Interpolation Through Learned Regularization ». Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 20 (11 juillet 2022) : 1–16. http://dx.doi.org/10.55037/lxlaser.20th.46.

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This paper deals with spatial interpolation of instantaneous Particle Tracking Velocimetry (PTV) data. Such a task can be handled using generic signal processing tools like B-splines, radial basis functions (RBF) or Kriging. We deal with non time-resolved PTV as gathered by dual frame particle image velocimetry (PIV) systems followed by dual frame PTV algorithms. In such a dual frame context, Physics-based interpolation techniques typically rely on enforcement of divergence free constraints on the interpolated field. The aim of this communication is to explore the wider field of Physics-based PTV interpolators based on learning a deep neural network. These interpolators are learned on a database of flow examples that may be generated by high resolution PIV or DNS. We propose an instance of such a Physics-based PTV interpolator based on the machine learning concept of unrolled optimization. This concept is extended in order to deal with random measurement location, characteristic of PTV data. We also show how to use this concept to perform pressure estimation from PTV data, along with velocity interpolation. The concept is illustrated on a 2D laminar flow, DNS data is used to train and benchmark the proposed method against RBF interpolation. The proposed method is shown to be much more robust than RBF interpolation against low density seeding and noise.

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Dupont, Aurélie, Ivo M. Glück, Dorothee Ponti, Kristin Stirnnagel, Sylvia Hütter, Florian Perrotton, Nicole Stanke, Stefanie Richter, Dirk Lindemann et Don C. Lamb. « Identification of an Intermediate Step in Foamy Virus Fusion ». Viruses 12, n^o 12 (21 décembre 2020) : 1472. http://dx.doi.org/10.3390/v12121472.

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Viral glycoprotein-mediated membrane fusion is an essential step for productive infection of host cells by enveloped viruses; however, due to its rarity and challenges in detection, little is known about the details of fusion events at the single particle level. Here, we have developed dual-color foamy viruses (FVs) composed of eGFP-tagged prototype FV (PFV) Gag and mCherry-tagged Env of either PFV or macaque simian FV (SFVmac) origin that have been optimized for detection of the fusion process. Using our recently developed tracking imaging correlation (TrIC) analysis, we were able to detect the fusion process for both PFV and SFVmac Env containing virions. PFV Env-mediated fusion was observed both at the plasma membrane as well as from endosomes, whereas SFVmac Env-mediated fusion was only observed from endosomes. PFV Env-mediated fusion was observed to happen more often and more rapidly than as for SFVmac Env. Strikingly, using the TrIC method, we detected a novel intermediate state where the envelope and capsids are still tethered but separated by up to 400 nm before final separation of Env and Gag occurred.

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Mitanjali et Vaibhav Kumar Arghode. « Investigation of Dual Color Angular Beam Scanning (DCABS) PIV system ». Optics and Lasers in Engineering 151 (avril 2022) : 106916. http://dx.doi.org/10.1016/j.optlaseng.2021.106916.

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Thaipisutikul, Tipajin, et Yi-Cheng Chen. « Pattern-based dual learning for point-of-interest (POI) recommendation ». Industrial Management & ; Data Systems 120, n^o 10 (8 septembre 2020) : 1901–21. http://dx.doi.org/10.1108/imds-04-2020-0207.

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PurposeTourism spot or point-of-interest (POI) recommendation has become a common service in people's daily life. The purpose of this paper is to model users' check-in history in order to predict a set of locations that a user may soon visit.Design/methodology/approachThe authors proposed a novel learning-based method, the pattern-based dual learning POI recommendation system as a solution to consider users' interests and the uniformity of popular POI patterns when making recommendations. Differing from traditional long short-term memory (LSTM), a new users’ regularity–POIs’ popularity patterns long short-term memory (UP-LSTM) model was developed to concurrently combine the behaviors of a specific user and common users.FindingsThe authors introduced the concept of dual learning for POI recommendation. Several performance evaluations were conducted on real-life mobility data sets to demonstrate the effectiveness and practicability of POI recommendations. The metrics such as hit rate, precision, recall and F-measure were used to measure the capability of ranking and precise prediction of the proposed model over all baselines. The experimental results indicated that the proposed UP-LSTM model consistently outperformed the state-of-the-art models in all metrics by a large margin.Originality/valueThis study contributes to the existing literature by incorporating a novel pattern–based technique to analyze how the popularity of POIs affects the next move of a particular user. Also, the authors have proposed an effective fusing scheme to boost the prediction performance in the proposed UP-LSTM model. The experimental results and discussions indicate that the combination of the user's regularity and the POIs’ popularity patterns in PDLRec could significantly enhance the performance of POI recommendation.

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Saleh, W., R. C. Bowden, I. G. Hassan et L. Kadem. « Two-phase flow structure in dual discharges – Stereo PIV measurements ». Experimental Thermal and Fluid Science 34, n^o 8 (novembre 2010) : 1016–28. http://dx.doi.org/10.1016/j.expthermflusci.2010.03.005.

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Jiang, Yuxin, Zhiguo Hou, Lvji Yan, Haiyin Gang, Haiying Wang et Liyuan Chai. « A Novel Dual-Ion Capacitive Deionization System Design with Ultrahigh Desalination Performance ». Polymers 14, n^o 21 (7 novembre 2022) : 4776. http://dx.doi.org/10.3390/polym14214776.

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Capacitive deionization is an emerging desalination technology with mild operation conditions and high energy efficiency. However, its application is limited due to the low deionization capacity of traditional capacitive electrodes. Herein, we report a novel dual-ion capacitive deionization system with a lithium-ion battery cathode LiMn2O4/C and a sodium-ion battery anode NaTi2(PO4)3/C. Lithium ions could enhance the charge transfer during CDI desalination, while NaTi2(PO4)3/C provided direct intercalation sites for sodium ions. The electrochemical capacities of the battery electrodes fitted well, which was favorable for the optimization of the desalination capacity. The low potential of the redox couple Ti3+/Ti4+ (−0.8 V versus Ag/AgCl) and intercalation/deintercalation behaviors of sodium ions that suppressed hydrogen evolution could enlarge the voltage window of the CDI process to 1.8 V. The novel CDI cell achieved an ultrahigh desalination capacity of 140.03 mg·g−1 at 1.8 V with an initial salinity of 20 mM, revealing a new direction for the CDI performance enhancement.

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Cheng, Zhun. « I-SA Algorithm Based Optimization Design and Mode-Switching Strategy for a Novel 3-Axis-Simpson Dual-Motor Coupling Drive System of PEV ». World Electric Vehicle Journal 12, n^o 4 (4 novembre 2021) : 221. http://dx.doi.org/10.3390/wevj12040221.

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Pure electric vehicle (PEV) equipped with a dual-motor coupling drive system can make full use of the high efficiency working range of the motor in order to improve vehicle efficiency. In order to further expand the application range of the system and to improve its practical application, this paper designs and proposes a new dynamic coupling drive system of three axis-double working modes, which is based on the Simpson planetary gear train. The new system adopts two planetary gears (P1 and P2), and the two sun gears of double rows, planetary carrier of P1 and gear ring of P2 are bunded. The power output of the P1 gear ring (mode 1) and P2 planetary carrier (mode 2) is realized by a controlling wet clutch. This paper adopts the linear interpolation method, least square method and 5-fold CV cross validation method to establish the full load speed characteristics and efficiency characteristics models of two motors (13 and 30 kW). This paper proposes an optimization design method based on an improved simulated annealing (I-SA) algorithm for new system parameter matching and working mode switching strategy determination. The results show that the modeling accuracy of the two motors is high, and the mean value of MAPE is 4.337%. The proposed optimization design method achieves the demand goal of PEV effectively. The I-SA algorithm has good effectiveness and fast convergence, the mean efficiency of the optimized PEV is 83.91% under all working conditions, the maximum speed is 142.56 km/h and the power utilization rate of the dual-motor is 100%. This study proposes a new hardware system and a design optimization method on software and provides a direct reference for the research of PEV drive systems by combining hardware with software.

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Nokes, Neil R., et Larry A. Tucker. « Changes in Hip Bone Mineral Density and Objectively Measured Physical Activity in Middle-Aged Women : A 6-Year Prospective Study ». American Journal of Health Promotion 26, n^o 6 (juillet 2012) : 341–47. http://dx.doi.org/10.4278/ajhp.100622-quan-208.

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Purpose. This study was conducted to determine if physical activity volume (PAv) and intensity (PAi) at baseline influence the likelihood of gaining hip bone mineral density (BMD) over 6 years. Design and Sample. In a prospective study, the sample was limited to 244 female nonsmokers, ages 35 to 45 years, and was approximately 90% white. Setting and Measures. PAv and PAi were measured in daily living conditions using accelerometers at baseline. BMD, measured by dual energy x-ray absorptiometry, and several confounding factors were measured in the lab. Analysis. On the basis of BMD change scores, participants were divided into three categories: BMD loss, minimal change, and BMD gain. Risk ratios were used to show the likelihood of BMD gains over time across different levels of PAv and PAi at baseline. Results. Women with higher PAv were more likely to show improvements in hip BMD from baseline to follow-up than their counterparts, as indicated by the Mantel-Haenszel chi-square (χ2mh = 6.1, p = .01). Women with high PAv were 2.50 times (95% CI, 1.19–5.24) more likely to experience hip BMD gains than women with low PAv, and women with moderate PAv were 2.20 times (95% CI, 1.08–4.45) more likely. PAi was not predictive of gains in hip BMD. Adjusting for potential confounders had little influence on the results. Conclusions. Middle-aged women with moderate or high levels of PAv are more likely to experience BMD gains at the hip over time compared with those who have low levels of PAv. However, PAi does not appear to influence the likelihood of gaining BMD at the hip over 6 years.

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Himmatus Suroyya, Sherin, Kukuh Nurcahyo, Guntur Winarno et Shinta Gunawati. « ANALISIS EMBOLI PARU MENGGUNAKAN DUAL ENERGY LUNG PERFUSION BLOOD VOLUME CT ANGIOGRAFI PULMONAL PADA PESAWAT DUAL SOURCE CT SCAN ». JRI (Jurnal Radiografer Indonesia) 4, n^o 1 (10 mai 2021) : 52–59. http://dx.doi.org/10.55451/jri.v4i1.86.

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Background: DECT-based scanning protocol with dual source CT scan, recommended for pulmonary perfusion, the protocol aims to evaluate pulmonary artery and pulmonary perfusion from CT contrast examination. Purpose: The purpose of this research was to determine how the pulmonary angiography CT scan technique to analyze pulmonary embolism using Dual Energy Lung Perfusion Blood Volume on Dual Source CT Scan. Methods : This research is a qualitative descriptive with primary data sources, namely CT Scan of Pulmonary Angiography patients with a Pulmonary Embolism Suspect using 128 slice Dual Source Dual Energy Siemens Somatom CT Scan analyzed using PBV Dual Energy Lung using the Region Of Interest (ROI) analysis technique and using material decomposition parameters, from July to October 2020 at National Central General Dr. Cipto Mangunkusumo Jakarta Hospital. Results: The results obtained were the process from the beginning of the patient registration, which was carried out by CT Pulmonary Angiography examination in the administration until the examination was completed. The CT scan technique for pulmonary angiography was conducted using 128 slice Dual Source Dual Energy Siemens Somatom CT Scan to analyze pulmonary embolism using the post processing Lung Perusion Blood Volume application. Conclusion : The results of the examination of the patient showed a picture of pulmonary embolism in the superior and inferior branches of the right pulmonary artery, and still visible contrast flow to the distal branch.

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Hoffmann, K., S. M. Geske et J. W. Moyer. « Pathogenesis of Tomato Spotted Wilt Virus in Peanut Plants Dually Infected with Peanut Mottle Virus ». Plant Disease 82, n^o 6 (juin 1998) : 610–14. http://dx.doi.org/10.1094/pdis.1998.82.6.610.

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Peanut (Arachis hypogaea) plants dually infected with tomato spotted wilt tospovirus (TSWV) and peanut mottle potyvirus (PMV) exhibited a wide variety of symptoms, ranging from PMV-like symptoms of transient mild leaf mottle to TSWV-like symptoms of severe leaf distortion and stunting of the plant. Dual infection did not cause greater symptom severity than infection with either virus alone. In the early stages of disease development, PMV symptoms were similar to the first leaf symptoms of TSWV infection, suggesting that identification of TSWV in field-grown peanuts should not depend on visual observation. The virus titer, determined by enzyme-linked immunosorbent assay, indicated a delay in TSWV disease progress in doubleinfected plants, compared to plants infected with TSWV alone. In the later phase of disease progress, the virus titer in dually infected plants was not significantly different from that of singly infected plants. Infection with TSWV and PMV alone and with both viruses in combination was consistent among commercially grown peanut cultivars. In plants inoculated with TSWV or PMV alone or with both viruses in combination, the length of the latent period and final disease incidence, as measured by the number of plants showing symptoms, did not depend on the cultivar.

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Zhou, Feng, Liang Liang Wu, Yuan Yuan Cui, Ying Chen, Jie Yang et Nan Huang. « A Method to Measure the Station of Artificial Mechanical Heart Valves ». Advanced Materials Research 683 (avril 2013) : 712–15. http://dx.doi.org/10.4028/www.scientific.net/amr.683.712.

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The experiments of artificial heart valves were divided into in vivo and in vitro experiments; in vivo experiments provide accurate experimental parameters serving in vitro research. Simulation experiment used in vitro usually goes like this, firstly design a similar model or prototype phenomenon, then analysis the model working out the regular parameters related to the process, ruled out the possibility of impact on the study of individual exist in vivo experiment. In vitro experiments are likely designed; performance can be simplified and prominently concerned about contents, even designed some extreme conditions to test. A number of means related to fluid experimental measurement are included, such as the Particle Image Velocimetry（PIV）[1], Dual Catheter Method [2]，and ultrasonic method[3] and so on. However, these methods have different kinds of limitations, for example the Dual Catheter Method cannot be used as a routine determination for clinic due to its destructiveness, and PIV test requires expensive equipment. This study was designed by the image processing technology of high-speed photography aiming at the production of a reliable, simple, economic, injury-free and non-contact measurement method.

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Başaran, Pınar Özge, et Duygu Tutan. « Pan-immune inflammatory value a new diagnostic biomarker in postmenopausal osteoporosis ». Journal of Medicine and Palliative Care 5, n^o 2 (30 avril 2024) : 99–105. http://dx.doi.org/10.47582/jompac.1447017.

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Aims: Postmenopausal osteoporosis (PMOP) is one of the most common bone diseases. We aimed to investigate the relationship between pan-immune inflammatory value and decreased bone mineral density in postmenopausal women. Methods: This prospective cross-sectional study was composed of 186 postmenopausal women. Osteoporosis was diagnosed with dual‐energy X‐ray absorptiometry (DEXA) results according to World Health Organization (WHO) recommendations and patients were separated into 3 groups; 1. control group with a T-score >-1; 2. group osteopenia with a T-score between -1,0 and -2,5; 3. group osteoporosis with a T-score ≤-2,5. After the physical examinations of all patients, venous blood samples were collected and the pan-immune inflammation value (PIV) was calculated. The parameters were evaluated statistically with the PIV value between the groups. Results: Groups are similar in terms of age, menopausal age, education, and occupation. PIV was significantly higher in postmenopausal women with osteoporosis than women with osteopenia and the control group (p

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Day, Trevor A., et Richard J. A. Wilson. « Specific carotid body chemostimulation is sufficient to elicit phrenic poststimulus frequency decline in a novel in situ dual-perfused rat preparation ». American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 289, n^o 2 (août 2005) : R532—R544. http://dx.doi.org/10.1152/ajpregu.00812.2004.

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Time-dependent ventilatory responses to hypoxic and hypercapnic challenges, such as posthypoxic frequency decline (PHxFD) and posthypercapnic frequency decline (PHcFD), could profoundly affect breathing stability. However, little is known about the mechanisms that mediate these phenomena. To determine the contribution of specific carotid body chemostimuli to PHxFD and PHcFD, we developed a novel in situ arterially perfused, vagotomized, decerebrate rat preparation in which central and peripheral chemoreceptors are perfused separately (i.e., a nonanesthetized in situ dual perfused preparation). We confirmed that 1) the perfusion of central and peripheral chemoreceptor compartments was independent by applying specific carotid body hypoxia and hypercapnia before and after carotid sinus nerve transection, 2) the Pco2 chemoresponse of the dual perfused preparation was similar to other decerebrate preparations, and 3) the phrenic output was stable enough to allow investigation of time-dependent phenomena. We then applied four 5-min bouts (separated by 5 min) of specific carotid body hypoxia (40 Torr Po2 and 40 Torr Pco2) or hypercapnia (100 Torr Po2 and 60 Torr Pco2) while holding the brain stem Po2 and Pco2 constant. We report the novel finding that specific carotid body chemostimuli were sufficient to elicit several phrenic time-dependent phenomena in the rat. Hypoxic challenges elicited PHxFD that increased with bout, leading to progressive augmentation of the phrenic response. Conversely, hypercapnia elicited short-term depression and PHcFD, neither of which was bout dependent. These results, placed in the context of previous findings, suggest multiple physiological mechanisms are responsible for PHxFD and PHcFD, a redundancy that may illustrate that these phenomena have significant adaptive advantages.

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Dave, Noopur, Kaice LaFavers et Gustavo Arrizabalaga. « The Dually Localized EF-Hand Domain-Containing Protein TgEFP1 Regulates the Lytic Cycle of Toxoplasma gondii ». Cells 11, n^o 10 (21 mai 2022) : 1709. http://dx.doi.org/10.3390/cells11101709.

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The propagation of the obligate intracellular parasite Toxoplasma gondii is tightly regulated by calcium signaling. However, the mechanisms by which calcium homeostasis and fluxes are regulated in this human pathogen are not fully understood. To identify Toxoplasma’s calcium homeostasis network, we have characterized a novel EF-hand domain-containing protein, which we have named TgEFP1. We have determined that TgEFP1 localizes to a previously described compartment known as the plant-like vacuole or the endosomal-like compartment (PLV/ELC), which harbors several proteins related to ionic regulation. Interestingly, partial permeabilization techniques showed that TgEFP1 is also secreted into the parasitophorous vacuole (PV), within which the parasite divides. Ultrastructure expansion microscopy confirmed the unusual dual localization of TgEFP1 at the PLV/ELC and the PV. Furthermore, we determined that the localization of TgEFP1 to the PV, but not to the PLV/ELC, is affected by disruption of Golgi-dependent transport with Brefeldin A. Knockout of TgEFP1 results in faster propagation in tissue culture, hypersensitivity to calcium ionophore-induced egress, and premature natural egress. Thus, our work has revealed an interplay between the PV and the PLV/ELC and a role for TgEFP1 in the regulation of calcium-dependent events.

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Santos Silva, Karin Hallana, et Elida Paulina Ferreira. « Edgar Poe em português ». Domínios de Lingu@gem 5, n^o 3 (9 avril 2012) : 20–37. http://dx.doi.org/10.14393/dl11-v5n3a2011-3.

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Nesse artigo discutimos os limites entre tradução e adaptação, tomando o contexto de publicação de duas traduções para o português da obra Tales of the Grotesque and Arabesque, de Edgar Allan Poe. Tratou-se do estudo da publicação de Histórias Extraordinárias (1978; 2003) com tradução de Breno Silveira e de tradução e adaptação, com o mesmo título, de Clarice Lispector. Observamos que o conjunto de contos da obra original diferiu do conteúdo dos volumes produzidos em português, o qual apresenta título bem diverso do original. Por meio de uma análise comparativa, envolvendo o original e as duas traduções, investigamos o que nesse contexto foi considerado o original. Além disso, um dos volumes em português já se coloca como adaptação, o que, do ponto de vista investigativo levantou outra questão a ser estudada: se a própria tradução não reproduz o original, então qual seria o limite entre tradução e adaptação? Procuramos responder a essa questão tomando a idéia de que todo texto traduzido já é uma reescrita e transforma o original (Lefevere 1992, Amorim 2006). A reflexão sobre o limite entre tradução e adaptação na contemporaneidade traz para o debate o questionamento sobre o próprio conceito de original e de tradução (Paz 1990; Derrida 1982, Ferreira 2006 e 2007) e sobre os condicionantes da constituição de imagens nas culturas alvo (Rodrigues 2001, Amorim 2006); conceitos em que nos concentramos para responder a questão aqui proposta.

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Essehli, R., I. Belharouak, H. Ben Yahia, K. Maher, A. Abouimrane, B. Orayech, S. Calder, X. L. Zhou, Z. Zhou et Y.-K. Sun. « Alluaudite Na2Co2Fe(PO4)3 as an electroactive material for sodium ion batteries ». Dalton Transactions 44, n^o 17 (2015) : 7881–86. http://dx.doi.org/10.1039/c5dt00971e.

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Alves, A. C., A. G. Penelas, M. F. Costa, R. P. Vieira et J. G. A. Guimarães. « Avaliação do Condicionamento de Pinos de Fibra de Vidro com Aminopropiltrietoxisilano (APTES) : Estudo Piloto ». Journal of Health Sciences 19, n^o 5 (23 février 2018) : 279. http://dx.doi.org/10.17921/2447-8938.2017v19n5p279.

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Este estudo avaliou o tratamento de superfície de pinos de fibra de vidro (PFV) com APTES na resistência de união (RU) à dentina radicular. Os PFV foram cimentados em 12 raízes de dentes bovinos, previamente selecionadas, as quais foram embutidas e distribuídas em 4 grupos experimentais (n3), de acordo com o tratamento de superfície do PFV: G1 metacriloxipropiltrietoxisilano (MPS)/1min G2 H2O2 24%/1min + MPS 1min G3 APTES/1min e G4 APTES/5min. Após embutimento das raízes, hibridização das paredes dos condutos e fixação dos PFV com cimento dual, os espécimes foram seccionados em discos de acordo com o terço radicular [cervical (C), médio (M) e apical (A)] e submetidos ao ensaio de push-out, para análise da RU. Os dados colhidos, após verificação da homocedasticidade amostral, foram submetidos à ANOVA de 2 fatores (a5%). Tanto para os 2 fatores quanto para a interação, não foram observadas diferenças estatisticamente significantes (p > 0,05). Os valores de RU (MPa) foram: Para o tratamento de superfície: G1 (2,45) G2 (3,66) G3 (5,45) G4 (5,00). Para o terço radicular: C (4,37) M (3,80) A (4,26). Concluiu-se que, o tratamento de superfície de PFV com APTE não influenciou os resultados de RU, sendo semelhante aos demais protocolos estudados. As falhas foram predominantemente adesivas na interface entre cimento/dentina.Palavras-chave: Resistência de união. Pinos de Fibra de Vidro. Tratamento de Superfície.

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Malek, A., M. J. Meadows, F. C. Miller et D. R. Mattison. « Continuous pO2 monitoring during dual perfusion of the term human placenta ». Placenta 10, n^o 5 (septembre 1989) : 516–17. http://dx.doi.org/10.1016/0143-4004(89)90174-4.

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Sjöberg, F., et G. Nilsson. « Dual mode antimony electrode for simultaneous measurements of PO2 and pH ». Acta Anaesthesiologica Scandinavica 44, n^o 1 (janvier 2000) : 32–36. http://dx.doi.org/10.1034/j.1399-6576.2000.440106.x.

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SAKAKIBARA, Kazuya, Yuki MIYAMOTO et Takayuki SAITO. « 4118 Development of the Dynamic PIV using Dual high speed camera ». Proceedings of the JSME annual meeting 2006.2 (2006) : 427–28. http://dx.doi.org/10.1299/jsmemecjo.2006.2.0_427.

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