Gotowe bibliografie tematyczne / Radiographic studies

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Gotowa bibliografia na temat „Radiographic studies”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Radiographic studies"

Orgill, Richard D., Thomas R. Pasic, Walter W. Peppler, and Mark D. Hoffman. "Radiographic Evaluation of Aspirated Metallic Foil Foreign Bodies." Annals of Otology, Rhinology & Laryngology 114, no. 6 (2005): 419–24. http://dx.doi.org/10.1177/000348940511400601.

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Objectives: Aspirated objects generally represent items accessible to children. When metallic candy wrapper aspiration is questioned, radiographic studies may aid diagnosis. An infant with repeated chest radiographs negative for a metallic foreign body was found to have a multi-layer metallic candy wrapper in the left main bronchus. The purpose of this study was to determine whether conventional and dual-energy radiographic techniques exclude the presence of aspirated metallic foil wrappers. Methods: Single-layer and multi-layer metallic candy wrappers were radiographically studied with conven

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Andrade, Júlia Guerra de, Gabriel Andrade Nunes Carrijo, Caroline Loureiro, Ana Paula Fernandes Ribeiro, Gladiston William Lobo Rodrigues, and Rogério de Castilho Jacinto. "Endodontic images as a forensic identification: A literature review." Research, Society and Development 10, no. 8 (2021): e16310816994. http://dx.doi.org/10.33448/rsd-v10i8.16994.

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Several radiographs are taken during endodontic treatment, thus providing a large number of images with individual characteristics that can be used for forensic identification of an individual. This study aimed to review the literature related to the use of endodontic radiographs in the identification of cadavers. A bibliographic search was carried out in the following databases: PubMed, Scielo, Periódicos Capes, and Web of Science. The keywords used were: forensic dentistry, endodontics, dental radiography, forensic identification. In total, 24 articles related to radiography in the identific

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Gupta, Ishita, Astha Chaudhry, Solanki Savita, and Arvind Shetti. "Radiographic Assessment of Peri-implant Bone Level – A Comparative Study of Digital Intraoral and Digital Panoramic Radiography." Stomatoloski glasnik Srbije 62, no. 3 (2015): 117–21. http://dx.doi.org/10.1515/sdj-2015-0012.

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Abstract Introduction The objective of this study was to compare two radiographic methods - digital intraoral and digital panoramic radiography in assessing marginal bone level around dental implants. The study also evaluated inter-observer and intra-observer reliability during repeated assessments. Material and Methods Marginal bone around 29 implants in 17 patients was assessed using standardized digital intraoral and digital panoramic radiographs. Two observers evaluated bone level by noting the thread at which marginal bone seemed to be attached at distal and mesial surfaces of the implant

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Carvalho, Kepler, Martim d. Pinto, Victoria Vivtcharenko, et al. "Comparison Between Hallux Rigidus Parameters Assessed by Conventional Radiographs and Weight- Bearing CT." Foot & Ankle Orthopaedics 7, no. 4 (2022): 2473011421S0060. http://dx.doi.org/10.1177/2473011421s00608.

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Category: Midfoot/Forefoot; Other Introduction/Purpose: The etiology of hallux rigidus (HR) is not well understood and its association with first-ray hypermobility, hallux valgus and metatarsus primus elevatus (MPE) has not been clearly proven. Recent studies have supported MPE in HR by measuring on weightbearing radiographs (WBR), but there are limitations of WBR due to variation in X-ray projection and superimposed metatarsals. WBCT represent a reliable tool for radiographic analysis of the first ray and can be important for the study pathologies such as HR, which involve several anatomical

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Murphy, Micheal, Richard Hodgson, Peter L. Harris, Richard G. McWilliams, David E. Hartley, and Michael M. D. Lawrence-Brown. "Plain Radiographic Surveillance of Abdominal Aortic Stent-Grafts: The Liverpool/Perth Protocol." Journal of Endovascular Therapy 10, no. 5 (2003): 911–12. http://dx.doi.org/10.1177/152660280301000510.

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Purpose: To present a protocol for plain radiographic surveillance of abdominal aortic stent-grafts that addresses the main variables in need of standardization: (1) patient position, (2) radiographic centering point, and (3) focus-to-film distance. Technique: Our policy is to perform baseline anteroposterior and lateral films following endoluminal grafting and repeat the studies annually. These are the most important films to assess migration and component separation; supplementary right and left posterior oblique radiographs may help identify wireform fractures. It is best to perform radiogr

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WATT, J. P., J. C. MOÏSI, R. L. A. DONALDSON, et al. "Measuring the incidence of adult community-acquired pneumonia in a Native American community." Epidemiology and Infection 138, no. 8 (2010): 1146–54. http://dx.doi.org/10.1017/s0950268809991464.

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SUMMARYFew population-based studies have investigated the epidemiology of adult community-acquired pneumonia (CAP). We aimed to determine the incidence of CAP in a population at high-risk for pneumococcal disease and to evaluate a standardized method for interpreting chest radiographs adapted from the World Health Organization paediatric chest radiograph interpretation guidelines. We reviewed radiology records at the two healthcare facilities serving the White Mountain Apache tribe to identify possible pneumonia cases ⩾40 years of age. We categorized patients with clinical criteria and a physi

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Yen, Matthew, and Andy Wai Kan Yeung. "The Performance of Paralleling Technique and Bisecting Angle Technique for Taking Periapical Radiographs: A Systematic Review." Dentistry Journal 11, no. 7 (2023): 155. http://dx.doi.org/10.3390/dj11070155.

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Periapical radiography is a routine radiographic procedure performed by dentists on a daily basis. It can be taken with two techniques, the paralleling technique (P tech) and the bisecting angle technique (B tech). This systematic review aimed to identify the relevant literature, compare the use of P and B techs across various dental specialties, and determine the most appropriate technique to be used for different purposes in taking periapical radiographs. In January 2023, we searched PubMed, Web of Science, Scopus, and Google Scholar to identify the studies that compared the two radiographic

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García-Guerrero, Claudia, Ángela V. Caicedo-Rosero, Cindy E. Delgado-Rodríguez, Sara Quijano-Guauque, Mauricio Rodriguez-Godoy, and Hannia Camargo-Huertas. "Concordance and consistency in the evaluation of diagnostic images of periapical tissue in endodontics." Duazary 18, no. 4 (2021): 350–60. http://dx.doi.org/10.21676/2389783x.4374.

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To estimate the degree of concordance and consistency in the radiographic and tomographic evaluation of the periapical area. A study of diagnostic tests was designed. Three blind evaluators analyzed radiographic images, which were selected at two different points in time. An oral radiologist and an endodontist determined the second observation moment. The degree of similarity and variability, concordance and consistency for each radiograph was set at 95% confidence. A Kappa coefficient (κ), for radiographic findings and a correlation coefficient of Lin (CCC) for tomographic measurements was es

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Irvin, Jeremy, Pranav Rajpurkar, Michael Ko, et al. "CheXpert: A Large Chest Radiograph Dataset with Uncertainty Labels and Expert Comparison." Proceedings of the AAAI Conference on Artificial Intelligence 33 (July 17, 2019): 590–97. http://dx.doi.org/10.1609/aaai.v33i01.3301590.

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Large, labeled datasets have driven deep learning methods to achieve expert-level performance on a variety of medical imaging tasks. We present CheXpert, a large dataset that contains 224,316 chest radiographs of 65,240 patients. We design a labeler to automatically detect the presence of 14 observations in radiology reports, capturing uncertainties inherent in radiograph interpretation. We investigate different approaches to using the uncertainty labels for training convolutional neural networks that output the probability of these observations given the available frontal and lateral radiogra

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Lee, Hee Young, Matthieu Lalevee, Nacime S. Mansur, et al. "Comparative Assessment of Hallux Rigidus using Conventional Radiograph and Weightbearing CT." Foot & Ankle Orthopaedics 7, no. 1 (2022): 2473011421S0030. http://dx.doi.org/10.1177/2473011421s00304.

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Category: Midfoot/Forefoot Introduction/Purpose: The etiology of hallux rigidus (HR) is not well understood and Its association with first-ray hypermobility, hallux valgus and metatarsus primus elevatus (MPE) has not been clearly proven. MPE, elevated first metatarsal has been a topic of debate since Lambrinudi`s first description. Recent studies have supported MPE in hallux rigidus by measuring with various methods on wightbearing lateral radiographs, but there are limitations of conventional radiography due to variation in X- ray projection and superimposed metatarsals regardless of the meth

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Rozprawy doktorskie na temat "Radiographic studies"

Ariffin, Siti Mariam Zainal. "Radiographic and pathologic studies of feline appendicular osteoarthritis." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6188/.

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Feline Osteoarthritis (OA) is a pathological change of a diarthrodial articulation which primarily occurs in older cats. The aims of this study were:- 1) to define the radiographic features of OA in the cat for each individual appendicular joint; 2) to relate the radiographic features to the gross pathologic and histopathologic features; 3) to explore underlying causes of OA in cats, 4) to identify the presence of Protease Activated Receptor-2 (PAR-2) and matriptase in feline articular cartilage and synovial membrane and to determine their role in OA pathogenesis. The present study has defined

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Sadan, Madeh Adel Abd Elrahiem. "Radiographic studies on the carpal joints in some small animals." Giessen VVB Laufersweiler, 2010. http://geb.uni-giessen.de/geb/volltexte/2010/7619/index.html.

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Sundén, Pikner Solweig. "Radiographic follow-up analysis of Brånemark® dental implants /." Göteborg : Department of Oral and Maxillofacial Radiology, Institute of Odontology, University of Gothenburg, Folktandvården, Postgraduate Dental Education Center, 2008. http://hdl.handle.net/2077/10124.

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Corbett, Juliet. "X radiographic studies of the laser driven compression of spherical polymer microshells." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317045.

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Sadan, Madeh A. A. [Verfasser]. "Radiographic studies on the carpal joints in some small animals / eingereicht von Madeh A. A. Sadan." Giessen : VVB Laufersweiler, 2010. http://d-nb.info/1004757735/34.

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Mahmood, Sarwar. "Leg length discrepancy and femoral offset after total hip arthroplasty : clinical and radiological studies." Doctoral thesis, Umeå universitet, Institutionen för kirurgisk och perioperativ vetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-114415.

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Every year, about 1 million patients worldwide and 16000 patients in Sweden undergo total hip arthroplasty (THA). This surgical intervention is considered a successful, safe and cost-effective procedure to regain pain-free mobility and restore hip joint function in patients suffering from severe hip joint disease or trauma. Besides relieving the pain, restoration of biomechanical forces around the hip with appropriate femoral offset (FO), leg length and proper component position and orientation are important goals. The radiographic preoperative planning and postoperative evaluation of these pa

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Tomko, Craig. "Studies in Dental Radiography." Thesis, Faculty of Dentistry, 1985. http://hdl.handle.net/2123/4278.

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Jackson, Marcus Thomas. "Conceptualising radiography knowledge and the role of radiography educators : perspectives and experiences of a radiography education community." Thesis, Kingston University, 2013. http://eprints.kingston.ac.uk/27737/.

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The diagnostic radiography curriculum and the process of its enactment are under researched in the United Kingdom. To date, there have been no published studies which have investigated the curriculum and the role of radiography educators from the multiple perspectives of radiography students, university radiography educators and clinical radiography educators, that is, a radiography education community. Accordingly, this study describes the perceptions and experiences of a radiography education community in relation to three research questions: 1. How does a radiography education community con

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Wright, John David. "Radiological studies of the equine tarsus." Thesis, The University of Sydney, 1990. https://hdl.handle.net/2123/26349.

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The tarsus is one of the most vital equine articulations. It is a complex joint which absorbs concussion from ground contact and translates force for locomotion from the upper limb. Diseases of the equine tarsus are commonly seen by veterinary practitioners and are frequently responsible for lameness leading to functional and economic loss. A radiographic examination is generally required to determine the precise pathological processes involving the tarsus (Kovacs 1963). The work presented in this dissertation is aimed at defining the following: 1. The features of the gross anatomy of th

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Foster, Louise V. "Studies concerning the diagnosis and progression of caries in adults." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319090.

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Książki na temat "Radiographic studies"

Erhardt, Russell. Chiropractic reference of clinical radiographic studies. 4th ed. Russell Erhardt, 1985.

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J, Harris Vivian, ed. Radiographic atlas of child abuse: A case studies approach. Igaku-Shoin, 1996.

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Pikner, Solweig Sundén. Radiographic follow-up analysis of Brånemark® dental implants. Department of Oral and Maxillofacial Radiology, Institute of Odontology, University of Gothenburg, Folktandvården, Postgraduate Dental Education Center, 2008.

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A, Jaeger Sharon, and Pate Deborah M, eds. Case studies in chiropractic radiology. Aspen Publishers, 1990.

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T, Godai, and United States. National Aeronautics and Space Administration., eds. Studies of solid propellant combustion with pulsed radiography. National Aeronautics and Space Administration, 1987.

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Clark, Mims Barbara, ed. Case studies in critical care nursing. Williams & Wilkins, 1990.

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Balachandiran, G. Radiology interpretation made easy: One hundred most common diseases studied. Jaybee Brothers, 2008.

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R, Harrison Glenn, ed. Clinical considerations and CBP case studies. s.n.], 1990.

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Moskowitz, Harold. I.C.U. chest radiology: Principles and case studies. Wiley-Blackwell, 2010.

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Moskowitz, Harold. I.C.U. chest radiology: Principles and case studies. Wiley-Blackwell, 2010.

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Części książek na temat "Radiographic studies"

Loftus, Christopher Miranda, Satoshi Kuroda, and Naoya Kuwayama. "Radiographic Studies." In Carotid Treatment: Principles and Techniques, 3rd ed. CRC Press, 2022. http://dx.doi.org/10.1201/9781003042174-3.

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Piekutowski, Andrew J. "Radiographic Studies of Impact Fragmentation." In High-Pressure Shock Compression of Solids II. Springer New York, 1996. http://dx.doi.org/10.1007/978-1-4612-2320-7_6.

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Abbott, Gerald F. "Challenging Chest Radiograph Interpretation." In IDKD Springer Series. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-83872-9_14.

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Abstract Chest radiography is the most widely used medical imaging modality in the world. The volume of chest radiographic studies continues to rise, in tandem with increased utilization of cross-sectional imaging studies. The most efficient method of interpreting such a large and growing work volume requires a systematic approach applied in a consistent manner. Within that framework, challenging and unusual cases will arise and require more concentrated efforts than those needed to interpret the more typical cases in day-to-day practice. A challenge may arise due to small size or poor conspic

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Jain, Drishti, Adivya Jain, and Tej Singh. "A CNN Framework for COVID Identification Using Radiographic Images." In Studies in Smart Technologies. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-9132-3_18.

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Yenumula, Lakshminarayana, Rajesh V. Acharya, and Umesh Kumar. "Case Studies in the Use of Digital Radiographic Imaging for Structural Integrity Assessment and Failure Analysis." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9093-8_15.

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"Radiographic Studies." In Carotid Endarterectomy. CRC Press, 2006. http://dx.doi.org/10.3109/9781420016277-4.

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"Radiographic Studies." In Carotid Endarterectomy. CRC Press, 2002. http://dx.doi.org/10.1201/b14141-3.

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Porcellini, Giuseppe, Francesco Fauci, Fabrizio Campi, and Paolo Paladini. "Radiographic studies and findings." In Shoulder Instability: A Comprehensive Approach. Elsevier, 2012. http://dx.doi.org/10.1016/b978-1-4377-0922-3.00017-4.

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Mitchell H.L. "Medical Imaging: Fulfilling the Promises." In Studies in Health Technology and Informatics. IOS Press, 1997. https://doi.org/10.3233/978-1-60750-881-6-489.

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Between 1980 and the present, a period which corresponds to the life of the international meetings on spinal deformity, magnetic resonance imaging, computed tomography and ultra-sonic imaging have emerged as new and powerful imaging techniques. Photographic and radiographic imaging have remained as effective imaging techniques over the same period, here too developments in digital imaging hardware and in digital image processing software have allowed the photograph and radiograph to play a role in spinal studies which was previously impossible. To allow MRI, CT and ultra-sonic techniques as we

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Grivas Theodoros B., Dangas Spyros, Polyzois Basil D., and Samelis Panagiotis. "The Double Rib Contour Sign (DRCS) in Lateral Spinal Radiographs, Aetiologic Implications for Scoliosis." In Studies in Health Technology and Informatics. IOS Press, 2002. https://doi.org/10.3233/978-1-60750-932-5-38.

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All lateral spinal radiographs in idiopathic scoliosis show a DRC sign of the thoracic cage, a radiographic expression of the rib hump. The outline of the convex overlies the contour of the concave ribs. The aim of this study is to assess this DRC sign in children with and without Late Onset Idiopathic Scoliosis (LOIS) with 10� -20� Cobb angle, and to examine whether in scoliosis the deformity of the thorax or that of the spine develops first.

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Streszczenia konferencji na temat "Radiographic studies"

Keşkekci, Kevser, Gül Şahin, Fuat Türk, Murat Lüy, and Fevzi Acar. "An Approach to Detection of Dental Restorations on Panoramic Radiographs." In 2024 8th International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT). IEEE, 2024. https://doi.org/10.1109/ismsit63511.2024.10757290.

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Liu, Xiaodong, Weilong Zhang, Gerald S. Frankel, Bahman Zoofan, and Stanislav Rokhlin. "Intergranular Corrosion and Stress Corrosion Cracking of AA2024-T3." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01233.

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Abstract The kinetics of intergranular stress corrosion cracks and the relation to the kinetics of intergranular corrosion were studied by foil penetration experiments on AA2024-T3 samples subjected to a uniaxial tensile stress. Samples with various orientations relative to the rolling direction were studied in 1.0 M NaCl at an applied anodic potential. The applied stress increased the rate of penetration relative to the rate for unstressed samples. The penetrated samples were further characterized using X-ray microfocal radiography and optical cross sectioning. The cracks for certain orientat

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Nicola, Sally, Victor Carreto, Ray A. Mentzer, and M. Sam Mannan. "Corrosion under Insulation Detection Technique." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02570.

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Abstract Corrosion is the most significant mechanical integrity issue faced by the petrochemical industry. Even after decades of study, prevention and mitigation, it remains the leading cause of pipeline failure in the oil and gas industry. Enormous costs are directed towards repairing corrosion damage in facilities every year. In this work, one of the most problematic forms of corrosion is studied: corrosion under insulation (CUI). Many methods of detecting CUI have been developed, including ultrasound, radiography methods, and pulsed eddy current testing; however, each has shortcomings that

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Sharp, W. B. A. (Sandy). "An Overview of Stress-Assisted Corrosion in the Pulp and Paper Industry." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04513.

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Abstract Stress-assisted corrosion (SAC) forms fissures on the waterside of boiler tubes near external attachment welds. Because of the severe consequence of water leaks in black liquor recovery boilers, these fissures present a particular hazard in the pulp and paper industry. Aware of the hazard they present since the late 1980s, this industry has developed radiographic techniques to estimate their severity and empirical rules to determine the fitness-for-service of tubes containing SAC. Perhaps surprisingly, burst tests suggest that the strength imparted by external attachment welds more th

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Mohammed, Muazu, and Aamir Saddiq. "Evaluation of the Impact of Iron Oxide Deposit on the Eddy Current (ECT) Measurements of Heat Exchanger Nickel Tubes." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17859.

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Abstract Corrosion is a major cause of disruption of operations of many refineries and petrochemical plants; ECT Inspection was conducted on the tubes of a shell-and-tube heat exchanger as part of turn-around scope, it revealed severe wall loss on tube outside diameter (OD). The shell is medium pressure steam and tube sodium hydroxide. A metallurgical characterization was conducted on the heat exchanger Nickel tubes to investigate the failure mechanism and to provide recommendations for mitigation, two tubes with over 80% wall loss from the ECT reports were pulled out for the studies. Profile

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Al-Ali, Samir K., Husain J. Alshammari, Faisal H. Al-Refai, Vinod K. Bhatia, and Mohd Al-Otaibi. "Monitoring of Stagnant and Low-Flow Lines in Petroleum Refineries." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09682.

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Abstract With new advancements in the petroleum refining processes, the need for monitoring of corrosion on the new and old systems is also transforming. This paper describes the experience gained in monitoring of stagnant and low flow lines of a refinery in Kuwait After witnessing a failure in one of the de-salter relief lines of the crude distillation unit, a comprehensive plan was prepared to identify and address similar cases in the entire refinery which was a major challenge. This paper describes the probable causes and the adopted remedies for the localized corrosion observed in the insu

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Muscio, J., H. Somacal, A. A. Burlon, et al. "Radiographic Technique for Densitometric Studies Using Heavy Ion Microbeams." In VII Latin American Symposium on Nuclear Physics and Applications. AIP, 2007. http://dx.doi.org/10.1063/1.2813866.

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Kozlowski, P. M., S. Coffing, T. Byvank, et al. "Radiographic Studies of a Shockwave Interacting with a Counter-Propagating Radiation Flow." In 2023 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2023. http://dx.doi.org/10.1109/icops45740.2023.10481014.

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Threadgold, J., A. Critchley, A. Jones, I. Crotch, D. Rose, and S. Portillo. "Studies into the Time Resolved Source Diameter of a Self Magnetic Pinch Radiographic Diode." In 2005 IEEE Pulsed Power Conference. IEEE, 2005. http://dx.doi.org/10.1109/ppc.2005.300536.

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Choplin, Robert H., Arne Nilsson, John M. Boehme, et al. "Patterns Of Usage Of Radiographic Studies: Implications For Picture Archival And Communication Systems Development." In Application of Optical Instrumentation in Medicine XIV and Picture Archiving and Communication Systems (PACS IV) for Medical Applications, edited by Samuel J. Dwyer III and Roger H. Schneider. SPIE, 1986. http://dx.doi.org/10.1117/12.975463.

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Raporty organizacyjne na temat "Radiographic studies"

Smith, D. L., Yujiro Ikeda, and Yoshitomo Uno. Radiography studies with gamma rays produced by 14-MeV fusion neutrons. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/434915.

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Bowlin, Elizabeth, and Puneet Agarwal. PR-201-153718-R03 Integrity Assessment of DTI Pipelines Using High Resolution NDE in Select Areas. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011486.

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Hydrostatic test and In-Line Inspection are the prescribed integrity assessment methods cited in various Codes and Regulations and have been proven to enhance pipeline safety. But a significant number of pipelines across the world remain difficult to inspect and impractical to modify for inspection by the prescribed methods due to physical configurations or operating conditions. This research performs a state of the art (SOTA) analysis of NDE technology readiness considering physical and operational barriers and technology deployment from inside, outside or over pipelines, and the possible rol

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Sauppe, Joshua Paul, Eric Nicholas Loomis, Elizabeth Catherine Merritt, Tana Cardenas, Brian Michael Haines, and Paul Andrew Bradley. Preliminary Design Studies for a Hydro-Growth Radiography Platform to Study the Double Shell Ablator Joint. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1511644.

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L51634 Significance of Changes in Residual Stresses and Mechanical Properties due to SMAW Repair. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0010104.

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There is a periodic requirement for immediate weld repairs during all pipe-laying operations. This need arises due to the occasional occurrence of girth weld flaws, which exceed specified defect tolerance levels. These defects are most commonly discovered by on-site radiographic inspection techniques and may be voids, inclusions and geometric irregularities. Repair welding may be required only over a limited portion of the pipe circumference and access for carrying out the repair may be restricted. Due to the range of types of repairs carried out and the limited time scales available, it is co

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