Academic literature on the topic 'Collapse de bulle'

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Journal articles on the topic "Collapse de bulle"

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Desdiani Desdiani. "Multiple bullae in asthmatic patients." International Journal of Biological and Pharmaceutical Sciences Archive 5, no. 2 (2023): 085–88. http://dx.doi.org/10.53771/ijbpsa.2023.5.2.0053.

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Emphysema bullae are often found in patients with chronic obstructive pulmonary disease and if the size of the bulla fulfills > 30% of the hemithorax, it can be called a giant bullae. A giant bullae can be similar to a pneumothorax, requiring a CT scan of the chest to avoid misdiagnosis and unnecessary procedures. The difference between a bulla and a pneumothorax obtained from imaging results is that if the lung collapses towards the ipsilateral hilum it is called a pneumothorax, while the bulla will appear to surround or wrap around the lung. Asthma is a disease characterized by chronic in
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Read, Andrew, William Parry-Jones, and Angshu Bhowmik. "Percutaneous drainage of a fluid-containing emphysematous bulla." BMJ Case Reports 14, no. 5 (2021): e240914. http://dx.doi.org/10.1136/bcr-2020-240914.

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We present the case of a 38-year-old man, with congenital bullous emphysema, who presented with unilateral pleuritic chest pain, rigors and a non-productive cough. A chest X-ray on admission demonstrated extensive bilateral bullous lung disease with left-sided lung collapse. There were fluid levels present within several bullae, with the largest bulla compromising most of the posterior aspect of the left lung base. We suspected infected emphysematous bullae. Despite prolonged conservative management with antibiotics the patient deteriorated clinically, consistently spiking temperatures and des
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Park, Junghyun, Dulee Kim, Jae-Hoo Park, Ji-Yun Lee, and Eun-Jung Cho. "Cardiovascular Collapse after the Induction of Anesthesia Due to the MASS Effect of Unruptured Giant Bullae." Medicina 59, no. 9 (2023): 1689. http://dx.doi.org/10.3390/medicina59091689.

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Background and Objectives: Giant bullae rupture easily and cause tension pneumothorax, which can cause problems during general anesthesia. However, the hemodynamic instability that can occur due to the mass effect of an unruptured giant bulla should not be overlooked. Case report: A 43-year-old male patient visited the emergency room with an abdominal wound. There was a giant emphysematous bulla in the left lung. Emergency surgery was decided upon because there was active bleeding according to abdominal CT. After tracheal intubation, the patient’s blood pressure and pulse rate dramatically dec
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Korymasov, E. A., A. S. Benian, Ju V. Bogdanova, K. M. Kolmakova, M. A. Medvedchikov-Ardiia, and D. Yu Konovalova. "Challenges in diagnosis and treatment of pneumothorax and giant bullae." PULMONOLOGIYA 31, no. 4 (2021): 499–504. http://dx.doi.org/10.18093/0869-0189-2021-31-4-499-504.

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Spontaneous pneumothorax is the most common acute chest disease. Often, giant bullae give the impression of the presence of air in the pleural cavity. Inadequate differential diagnosis leads to vain drainage of the pleural cavity, damage to the lung with its collapse and pneumothorax.The aim. Analyze diagnostic and tactical mistakes in patients with pulmonary emphysema, which manifests with giant bullae, and outline the ways to prevent complications.Methods. The analysis of the treatment of 1,636 patients with pulmonary emphysema and its complications undergoing treatment in the thoracic surgi
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Du, Hongkai, Jiaxin Yu, Yuandong Wang, Yuhua Zhu, Yuyang Tang, and Haimeng Wang. "Visualized Failure Prediction for the Masonry Great Wall." Buildings 12, no. 12 (2022): 2224. http://dx.doi.org/10.3390/buildings12122224.

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The cultural, architectural, and historical heritage value of the Great Wall of China drives the need to maintain, rehabilitate, and restore its structural integrity from artificial and natural damage. In this study, a hybrid architectural visualization and structural collapse simulation of the Ming Great Wall (1368–1644 AD) are conducted in Blender based on the unit blocks and a physics engine (i.e., Bullet Constraint Builder). Visualized failure predictions caused by four damages, i.e., stone layer collapse, step collapse, parapet walls inward tilting, and stone layer bulge, are developed an
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Haloi, Prajnananda, Rahul Biswas, and Ananta K. Bora. "Anesthetic management of a case of a lip mass with paraseptal emphysema and multiple bilateral giant bullae for surgical resection under mental nerve block." Saudi Journal of Anaesthesia 18, no. 3 (2024): 442–44. http://dx.doi.org/10.4103/sja.sja_43_24.

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Anesthesia in patients with emphysematous giant bulla undergoing non-thoracic surgery is challenging and can cause serious complications. We report a successful case of lip mass resection in a 65-year-old male with paraseptal emphysema and giant bullae under regional anesthesia using a mental nerve block. The patient presented with a slow-growing ulcerative mass on his lower lip and had a history of non-compliant COPD management. An excisional biopsy was planned. Preoperative workup revealed extensive lung pathology with giant bullae. General anesthesia with positive pressure ventilation in pa
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Boyd, Jeffrey. "The Quantum World Is Astonishingly Similar to Our World: The Timing of Wave Function Collapse According to The Theory of Elementary Waves." JOURNAL OF ADVANCES IN PHYSICS 14, no. 2 (2018): 5598–610. http://dx.doi.org/10.24297/jap.v14i2.7555.

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This is one of a series of articles building a map of elementary waves, based on experimental data and quantum mathematics. Previous articles showed that elementary waves carry no energy. Particles follow them backwards. Why? Elementary rays consist of probability amplitudes, which influence particles because that is what probability amplitudes do. Elementary waves are that part of nature corresponding to quantum mathematics. Since these waves are the physical analogs of quantum equations, those equations provide a roadmap to the world of elementary waves: a map written in hieroglyphs. Quantum
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Shariff, Masood A., Vijay A. Singh, Edward D. Daniele, et al. "Spontaneous Collapse of Bilateral Bullae with Conservative Management." Clinical Medicine Insights: Case Reports 6 (January 2013): CCRep.S11187. http://dx.doi.org/10.4137/ccrep.s11187.

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We report a case of bilateral apical lung bullae that collapsed following an episode of community-acquired pneumonia with bilateral air fluid levels. With standard treatment for community-acquired pneumonia, management of a patient that may have qualified for bullectomy, (as in our case) showed complete resolution of all pathology without surgical intervention. Conservative management took precedence in alleviating pathology over surgical intervention.
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Jozic, Ivan, Jérémy Chéret, Beatriz Abdo Abujamra, Mariya Miteva, Jennifer Gherardini, and Ralf Paus. "A Cell Membrane-Level Approach to Cicatricial Alopecia Management: Is Caveolin-1 a Viable Therapeutic Target in Frontal Fibrosing Alopecia?" Biomedicines 9, no. 5 (2021): 572. http://dx.doi.org/10.3390/biomedicines9050572.

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Irreversible destruction of the hair follicle (HF) in primary cicatricial alopecia and its most common variant, frontal fibrosing alopecia (FFA), results from apoptosis and pathological epithelial-mesenchymal transition (EMT) of epithelial HF stem cells (eHFSCs), in conjunction with the collapse of bulge immune privilege (IP) and interferon-gamma-mediated chronic inflammation. The scaffolding protein caveolin-1 (Cav1) is a key component of specialized cell membrane microdomains (caveolae) that regulates multiple signaling events, and even though Cav1 is most prominently expressed in the bulge
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Večerek, Vladimír, Eva Voslářová, Josef Kameník, et al. "The effect of slaughtering skills on the welfare of cattle during stunning with a captive bolt." Acta Veterinaria Brno 90, no. 1 (2021): 109–16. http://dx.doi.org/10.2754/avb202190010109.

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The performance of stunning in various abattoirs can differ. The aim of the study was to compare the stunning of cattle with a captive bolt in two abattoirs. We monitored the slaughtering skills by measuring the deviation of the location of the stunning shot hole on the skull from the ideal point and further by measuring the angle of inclination of the stunning shot on the skull from the ideal perpendicular angle. We observed the impact of different slaughter skills on the quality of stunning of animals based on the occurrence of failure to achieve motor paralysis after a stun shot. The failur
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Dissertations / Theses on the topic "Collapse de bulle"

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Pineda, Rondon Saira Freda. "Numerical prediction of cavitation erosion." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC031/document.

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La cavitation peut avoir lieu dans les turbines hydrauliques. Ce phénomène se produit lorsque les bulles de vapeur s’effondrent à proximité de la surface de la machine. Ceci entraîne des conséquences négatives, telles que l’érosion, affectant ainsi les performances de la machine. L’effondrement d’une bulle de gaz non-condensable dans l’eau est simulé en utilisant la méthode sans maillage SPH-ALE, qui intègre un modèle pour simuler les écoulements compressibles et multiphases. Le modèle résout les équations de conservation de masse, de quantité de mouvement et d’énergie du système d’Euler, en u
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Ménez, Lucas. "Développement de méthodes des frontières immergées pour l’étude de problèmes couplés fluide-structure." Electronic Thesis or Diss., Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2024. http://www.theses.fr/2024ESMA0025.

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L’érosion de cavitation représente un problème majeur pour les applications hydrauliques et marines. Ce phénomène est la conséquence de la superposition de pits de cavitation en surface du matériau, formés par l’implosion (ou collapse) de bulles au voisinage de la paroi. Afin d’apporter une meilleure compréhension du phénomène et des problématiques liées à sa résolution numérique, une stratégie de couplage fort entre le fluide et la structure, basée sur une approche partitionnée, a été développée. Elle est basée sur le code interne SCB (volumes finis), le solveur libre FEniCS (éléments finis)
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Capuano, Marion. "Simulations numériques d'écoulements diphasiques compressibles, visqueux et conductifs à l'aide de schémas aux différences finies d'ordre élevé." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC016/document.

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Ce travail de thèse porte sur le simulation d’écoulements diphasiques compressibles, visqueux et conductifs, à l’aide de schémas numériques aux différences finies centrées d’ordre élevé. Pour cela, les équation utilisées sont les équations de Navier-Stokes complétées de deux équations d’advection décrivant l’interface et d’une équation permettant d’estimer la température au sein d’un liquide et d’un gaz. Elles sont résolues à l’aide de méthodes numériques conservatives précédemment développées pour l’aéroacoustique, adaptées dans la présente étude à la simulation d’écoulements diphasiques. Les
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Daou, Maya Mounir. "Investigation of the plate-impact method as a precursor of physical phenomena and chemical processes." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066245/document.

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Ce manuscrit a pour but d'étudier un nouveau dispositif générateur de cavitation dont le potentiel favorable à l'intensification de réactions chimiques est évalué. Ce dispositif est constitué d'une plaque mobile qui frappe un liquide contenu dans un réacteur. L'impact génère une forte augmentation de pression dans le milieu suivi d'une dépressurisation. Nous montrons que la couche de gaz/vapeur piégée entre le piston et la surface du liquide influence les pics de pression et les fréquences générées dans le milieu. La visualisation à l'aide d'une caméra rapide montre que la dépressurisation act
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Books on the topic "Collapse de bulle"

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Art, SeaShell SeaShell. Notebook : Aesthetic Print Cover Lined Paper Minimal Journal Notebook: 6x9 Inches 110 Pages, Collage, Bullet, Daily Modern Notebook. Independently Published, 2021.

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Book chapters on the topic "Collapse de bulle"

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Gilpin, Robert. "The Global Political System." In Order and Violence. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198275558.003.0006.

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Abstract Hedley bull was the most distinguished scholar of his generation to analyse and explore the uniqueness and genius of the modern European political order. In The Anarchical Society (1977), the subtitle of which is A Study of Order in World Politics, Bull carried forward a tradition of speculation and theorizing that extends from Hugo Grotius to Ludwig van Ranke to Bull’s own mentor, Martin Wight. Bull, however, in his last major contribution to scholarship, went beyond the themes of these earlier writings and enquired whether the European experience of statecraft has any relevance for
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Coffee, John C. "Explaining Gatekeeper Failure." In Gatekeepers: The Professions and Corporate Governance. Oxford University PressOxford, 2006. http://dx.doi.org/10.1093/oso/9780199288090.003.0007.

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Abstract Although the collapse of Enron and WorldCom make fascinating stories, they are, by themselves, just anecdotes. Alone, they are simply additional chapters in the long and spectacular history of business failure in the United States. Yet, Enron and WorldCom do not stand alone; rather, they were the best-known examples in a sudden and massive eruption of Wnancial irregularity that occurred at the end of the longest sustained bull market in U.S. history. Some firms failed, but more simply acknowledged the inflation of their Wnancial results and then endured the painful process of stock ma
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McAuley, Louis Kirk. "The Poetics of Biological Invasion and Crop Monoculture in Early Caribbean Literature." In The Ecology of British and American Empire Writing, 1704-1894. Edinburgh University Press, 2024. http://dx.doi.org/10.3366/edinburgh/9781399527149.003.0003.

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Chapter 2 takes the world-ecological significance of the sugar revolution into account, in part through close analysis of both the real and imaginative confusion of Old and New World species in various forms of West Indian empire writing. This chapter considers the ways in which early Caribbean authors broadly conceive of the sugar revolution and, by extension, human history, as co-produced by manifold species. That is, this chapter explores the world-ecological orientation of Caribbean-based authors, including James Grainger, whose efforts to perfect the cultivation and processing of sugar ca
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Reddy, Bhavanam Sudhakara, Kambala Swetha, and Sirigireddy Sivajothi. "Otitis Interna and its Clinical Management." In Common Ear Diseases in Dogs: Diagnosis and Management. BENTHAM SCIENCE PUBLISHERS, 2025. https://doi.org/10.2174/9789815313598125010018.

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Otitis interna define as inflammation of inner ear, which will be an extension of infection from the otitis media or secondary to the chronic otitis externa. Improperly treated / untreated cases of otitis media can lead to development of otitis interna by involving the tympanic membrane. Clinical signs in otitis interna were impairment of hearing apparatus i.e. deafness and neurological indications such as tilting of the head towards the based on the side of the ear affected, development of the horizontal or rotary nystagmus, unequal legs coordination with diffused strength, circular walking p
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Teige, Ola. "Norske provinsmatadorer: familien Adeler og makten i Kragerø ca. 1620–1760." In Hvem styrte byene? Nordisk byhistorie 1500–1800. Cappelen Damm Akademisk/NOASP, 2022. http://dx.doi.org/10.23865/noasp.149.ch9.

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Norwegian provincial matadors. The Adeler family and the power in the town Kragerø c. 1620–1760 This chapter describes the Norwegian coastal town of Kragerø and the position of the Adeler family in its political, social and commercial life in the period 1620–1760. It illustrates how local elite families exercised power in such towns in the early modern period, the strategies they used, and the sources of this power. In this regard, Kragerø is close to an ideal example of a town controlled by just one or a few mighty families. For 35 years, it was ruled by a single, undisputed “matador” and for
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Conference papers on the topic "Collapse de bulle"

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Leblond, H., I. V. Mel’nikov, and D. Mihalache. "Few-Cycle Optical Solitons in Nonlinear Media: Spatiotemporal Collapse vs Bullet Cast." In Nonlinear Optics. OSA, 2013. http://dx.doi.org/10.1364/nlo.2013.nw4a.12.

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Qu, Zhaoyu, Ning Gan, Yingyu Chen, and Nana Yang. "Experimental Study on Cavitation Motion of Underwater Vehicle With Protrusions." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18699.

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Abstract For underwater vehicles with protrusions (external structure), the geometric shape of the protrusions is bound to affect the local flow field of the vehicles during the moving process of the vehicles, thus affecting the generation, development and collapse of cavitation around the vehicles. The cavitation may break, fall off and collapse randomly, and other local movements may affect the motion attitude of the underwater vehicle. It is an effective method to study fluid dynamics to simulate prototype cases with small scale models. In this paper, we mainly use the small scale model tes
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Rauffus, René Bettencourt, António Maximiano, Luís Eça, and Guilherme Vaz. "CFD Analysis of a Captive Bullet Entry in Calm Water With and Without Turbulence." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96099.

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Abstract Simulations are carried out for a simplified lifeboat drop test case, which consists of a captive axisymmetric generic lifeboat shape (bullet), that penetrates the water surface at a constant velocity and angle of attack. The quantities of interest are the body fixed longitudinal force FX, vertical force FZ, and pitch moment MYY.This case was previously used in a verification and validation exercise [1]. Here, a step forward in complexity is taken, as the previous numerical model is now supplemented with the eddy-viscosity based turbulence model k–ω SST. Both approaches are then used
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Limam, A., L. H. Lee, E. Corona, and S. Kyriakides. "Plastic Buckling and Collapse of Tubes Under Bending and Internal Pressure." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57986.

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This paper presents results from a recent combined experimental-analytical study of the inelastic response and the sequence of events that lead to collapse of pipes bent under internal pressure. Experimental results from stainless steel 321 seamless tubes with D/t of 52 are reported. The tubes were loaded by pure bending at fixed values of pressure ranging from zero to a value that corresponds to 0.75 times the yield pressure. The moment-curvature response is governed by the inelastic characteristics of the material. Bending induces some ovalization to the tube cross section while, simultaneou
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Cable, Travis A., Luis San Andrés, and Karl Wygant. "On the Predicted Effect of Angular Misalignment on the Performance of Oil Lubricated Thrust Collars in Integrally Geared Compressors." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-57888.

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Multiple-stage integrally geared compressors (IGCs) offer improved thermal efficiency and easier access for maintenance and overhaul than single-shaft centrifugal compressors. In an IGC, a main bull shaft drives pinion shafts, each having an impeller at its ends. The compression of process gas in the compressor stages induces axial loads along the pinion shafts that are transmitted via thrust collars (TCs) to the main bull gear (BG) shaft and balanced by a single thrust bearing. Manufacturing inaccuracies and a poor assembly process can lead to static angular misalignments of the TC and BG sur
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San Andrés, Luis, Travis A. Cable, Karl Wygant, and Andron Morton. "On the Predicted Performance of Oil Lubricated Thrust Collars in Integrally Geared Compressors." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25914.

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Integrally geared compressors (IGCs) comprise of single stage impellers installed on the ends of pinion shafts, all driven by a main bull gear (BG) and shaft system. When compared to single shaft multistage centrifugal compressors, the benefits of IGCs include better thermal efficiency, reduced footprint and simple foundation, dispensing with a high speed coupling, as well as better access for maintenance and overhauls. In IGCs the compression of the process gas induces axial loads on the pinion shafts that are transmitted via thrust collars (TCs) to the main drive shaft and balanced by a sing
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Chen, Yijiang, and Javid Atai. "Dark Optical Bullets in Light Self Trapping." In Nonlinear Guided Waves and Their Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/nlgw.1995.nfa8.

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Propagation of a light beam in a nonlinear medium has been a subject of great interest over the last three decades. In a uniform medium, the nonlinearity has been shown to have such an effect to offset the diffraction of a beam, leading to the stationary propagation of a CW wave.1-6 In an optical fiber where a light beam is bounded by the linear guiding structure, the nonlinearity can produce a balancing effect to the dispersion of a pulsed beam to yield the stationary propagation of the pulse.7,8 In most experimental situations of light self trapping, pulsed lasers are used as sources for exc
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Yuen, Simon, A. Boyd McKay, Daniel McArthur, Henry Kwok, John Fernando, and Leanne Wong. "Local Post Weld Heat Treatment of a Pressure Vessel: A Postmortem Evaluation." In ASME 2023 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/pvp2023-106971.

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Abstract This study is a postmortem evaluation of a process tower that suffered significant distortion after a local post weld heat treatment (PWHT). After installation of new nozzles near the base of the pressure vessel, heat treatment was performed to alleviate welding residual stresses in-situ, using a bulls-eye heating coil configuration. Currently, there are established industry guidelines on the placement of heating coils and insulation, but no standard analytical technique or engineering protocol or acceptance criteria that to assess a PWHT. As such, in addition to the postmortem analys
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Farnetano, Ruben P., Ahmed M. Daoud, Kristian Mogensen, Ahmed Fawzy, Eiman Alnuaimi, and Bothainah Al Sereidi. "Novel Completion and Stimulation Technologies from Planning to Execution Tripled the Injectivity Index for the First Water Injectors in a Giant Tight Carbonate Reservoir, Onshore Abu Dhabi." In SPE Reservoir Characterisation and Simulation Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212637-ms.

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Abstract Unit R is a tight carbonate reservoir onshore Abu Dhabi currently undergoing redevelopment with the aim to substantially improve the ultimate recovery factor. Better pressure support is required to increase the production. To this end, two water injectors were drilled in tight areas where wells suffer from low injectivity index and high well head injection pressure (WHIP). Reaching the expected injection rates therefore required very aggressive matrix-acid stimulation techniques. Acid wash is a common stimulation practice for medium-high permeability wells in ADNOC when the purpose is
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Paulo, Avner, Carlos Eduardo Oliveira De Souza, Bruna Guimarães Lima e Silva, Flávio Luiz Schiavoni, and Adilson Siqueira. "Black Lives Matter." In Simpósio Brasileiro de Computação Musical. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sbcm.2019.10459.

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The Brazilian police killed 16 people per day in 2017 and 3/4 of the victims were black people. Recently, a Brazilian called Evaldo Rosa dos Santos, father, worker, musician, and black, was killed in Rio de Janeiro with 80 rifle bullets shot by the police. Everyday, the statistics and the news show that the police uses more force when dealing with black people and it seems obvious that, in Brazil, the state bullet uses to find a black skin to rest. Unfortunately, the brutal force and violence by the state and the police to black people is not a problem only in this country. It is a global real
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