Academic literature on the topic 'Number Of Canals'

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Journal articles on the topic "Number Of Canals"

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Al-Ghananeem, Muna M. F., Khattar Haddadin, Abeer Salem Al-Khreisat, Moeen Al-Weshah, and Nidal Al-Habahbeh. "The Number of Roots and Canals in the Maxillary Second Premolars in a Group of Jordanian Population." International Journal of Dentistry 2014 (2014): 1–4. http://dx.doi.org/10.1155/2014/797692.

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Objectives. The aim of this study was to investigate the number of roots and root canals in the maxillary second premolar in a group of Jordanian population.Materials and Methods. A total of 217 patients, 100 female (46%) and 117 male (54%), received root canal treatment of maxillary second premolar from January 2012 to January 2014. The mean age of the patients was 32.7, ranging from 18 to 60 years. The teeth included in the study were examined clinically and radiographically for the number of roots and root canals using magnifying loupes.Results. Out of the total of 217 maxillary second premolars, 120 teeth had one root (55.3%), 96 teeth had two roots (44.2%), and one tooth had three roots (0.46%). Regarding root canal configuration, 30 teeth (13.8%) had one canal, 54 teeth (24.9%) had two canals shared in one apical foramen, 132 teeth (60.8%) had two canals with two separate apical foramina, and one tooth (0.46%) had three canals with separate apical foramina.Conclusion. The incidence of two canals (either with shared or separate apical foramina) is very high in the maxillary second premolars in Jordanian population; therefore inspection should be done for the presence of second canal whenever endodontic treatment is planned for this tooth.
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Swarna S K, Subash Sharma, and Haripriya S. "Occurence of Number of Canals in Maxillary Second Molar in South Indian Population - A Retrospective Study." International Journal of Research in Pharmaceutical Sciences 11, SPL3 (2020): 1000–1004. http://dx.doi.org/10.26452/ijrps.v11ispl3.3320.

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Maxillary molars contain various anatomical variations with diverse shapes and forms. The variations in root canal anatomy may be due to developmental patterns or may have a genetic influence. The root morphological studies have led to a better understanding of canal morphology that contributes to successful cleaning and shaping of the root canal system. This study was done to assess the prevalence of the number of canals in Maxillary second molars and to determine its association with age and gender in a South Indian Population by evaluating post- operative periapical radiographs. A total of 384 case sheets of root canal treated maxillary second molars were reviewed and analyzed. The patients undergoing root canal treatment for maxillary second molars were screened, and cases selected for the study were in the age group of 18- 65 years. Data was analyzed using SPSS software. Out of 384 teeth, 211 were male and 173 were female patients. Number of canals had no significant correlation with age but had significant association with gender (p=0.085). There were 3 canals in most of the cases. Within the limitations of the study, the maxillary second molars consisted mostly of 3 canals in both male and female patients. There was significant association between gender and number of canals.
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Deng, Prunella Ubung, Mohamad Syahrizal Halim, Sam'an Malik Masudi, Saaid Al-Shehadat, and Basaruddin Ahmad. "Cone-beam computed tomography analysis on root and canal morphology of mandibular first permanent molar among multiracial population in East Coast Malaysian population." European Journal of Dentistry 12, no. 03 (2018): 410–16. http://dx.doi.org/10.4103/ejd.ejd_82_18.

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ABSTRACT Objective: The aim of this study is to investigate the variations in the number of root and canal in the mandibular first permanent molars (MFPMs) teeth in East Coast Malaysian population using cone-beam computed tomography (CBCT). Materials and Methods: CBCT images which show MFPMs recorded in HUSM Dental Clinic between January 2015 and June 2016 was obtained and analyzed for their number of roots and canals. A total of 208 CBCT images of MFPMs were collected; 118 patients had unilateral molars and 90 patients had bilateral molars. The following observations were made: (1) root number; (2) number of canals per root; and (3) comparisons of number of roots and canals according to gender, ethnicity, and position. Results: The majority of cases of bilateral MFPM had the same number of roots (95.6%, 95% confidence interval [CI]: 89.01%, 98.78%) on both the right and left side and only 4 cases (4.4%, 95% CI: 1.22%, 10.99%) had 3 roots on the right and 2 roots on the left sides. The majority of cases had the same number of canals on both sides (66.7%, 95% CI: 55.95, 76.26%) and 33.3% (95% CI: 23.74%, 44.05%) with unequal number of canals. The occurrence of the number of canals was not independent of the sides of the arch (P < 0.001) and there was statistically significantly greater proportion of cases who had greater number of canals on the right side than the left (P = 0.03). The prevalence of right single-rooted MFPM was very small at 0.3% (n = 1) in a Malay male (95% CI: 0.00, 1.83) and the most prevalent was two roots first molar (88.4%). The number of roots was not associated with sex or ethnic group (P > 0.05). The MFPM with a single root was found to have only one mesial canal. For two rooted MFPM, the most prevalent occurrence was two canals at the mesial and one canal at the distal roots (59%); followed by single canals in each mesial and distal (21%) and double canals per root (18%). Three roots MFPM have either single or double canals in the mesial root and double canals in the distal root. Conclusions: The majority of population in the East Coast region of Malaysia has two roots and three root canals in their MFPMs. There was no difference in the number of roots between gender and ethnic and canals between ethnic.
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Mukhaimer, Raed Hakam. "Evaluation of Root Canal Configuration of Mandibular First Molars in a Palestinian Population by Using Cone-Beam Computed Tomography: An Ex Vivo Study." International Scholarly Research Notices 2014 (August 13, 2014): 1–7. http://dx.doi.org/10.1155/2014/583621.

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Aim. The purpose of this study was to investigate the number of canals and variations in root canal configuration in the mandibular permanent first molar teeth of a Palestinian population using cone-beam computed tomography (CBCT). Methods. A sample of 320 extracted double-rooted mandibular permanent first molars from Palestinian population was collected for this study and scanned with CBCT scanner. The following observations were made: number of root canals per root and canal configuration in each root based on Vertucci’s classification. Results. Of the 320 mandibular first molars analyzed, 174 (54.4%) had three canals, 132 teeth (41.3%) had four canals, and only four teeth had two canals. The most common canal configuration in the mesial roots was Vertucci type IV (53.8%) followed by type II (38.8%). In the distal roots, the most prevalent canal configuration was Vertucci type I (57.5%) followed by type II ( 22.5%) and type III (10.6%). Conclusion. Our results showed that the number of canals and canal configuration in Palestinian population were consistent with previously reported data. The present study also indicates that CBCT is helpful as a diagnostic tool for the investigation of root canal morphology.
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Khattak, Munawar Aziz, Sana Arbab, and Syed Amjad Shah. "Frequency of number of roots and root canals of maxillary first premolar teeth." Professional Medical Journal 28, no. 10 (2021): 1513–18. http://dx.doi.org/10.29309/tpmj/2021.28.10.6290.

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Objective: To determine the frequency of the number of roots and root canals in a sample of 250 extracted maxillary first premolar teeth of patients visiting Peshawar Dental College and Hospital Khyber Pakhtunkhwa. Study Design: Cross Sectional. Setting: Department of Oral Biology, Peshawar Dental College and Hospital Khyber Pakhtunkhwa. Period: April 2016 to December 2016. Material & Methods: A total of 250 extracted human maxillary first premolars were collected from the Department of Oral & Maxillofacial Surgery, Peshawar Dental College, and Hospital Khyber Pakhtunkhwa. All teeth were visually inspected to count the number of roots. Subsequently, the access cavity was prepared, and pulp extirpated from each tooth. Endodontic explorer was used to locating the canal orifice(s) at the pulp chamber floor. Later the root canal orifices were injected with India ink to stain the canals. After that roots of teeth were sectioned at different levels to note down the number of canals. Data were analyzed using SPSS version 19. The statistical significance of the variations from mean values was considered significant if the p-value was less than 0.05. Results: Out of 250 maxillary first premolar teeth, 44.8% had one root, 40.4% had two separate and 12.8% had two fused roots. Three roots were seen in 2.0% teeth. Two root canals were present in the vast majority (70.4%), whereas one and three root canals were seen in 27.6% and 2.0% teeth, respectively. The correlation between the number of roots and root canals of maxillary first premolar teeth was highly significant. Conclusions: There was a high frequency of maxillary first premolars with two roots and two root canals.
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Zarekar, Mohit, Apurva Satpute, and Mohini Zarekar. "Maxillary second molar with morphologic variations in number of roots & canals: Literature review & report of two cases." IP Indian Journal of Conservative and Endodontics 9, no. 1 (2024): 39–44. http://dx.doi.org/10.18231/j.ijce.2024.009.

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The root canal and root morphologies of maxillary second molars might vary. This article details the endodontic treatment of two cases involving unusual root canal morphology in a maxillary second molar. The first case involved a single root and a single canal, whereas the second case had a single root with two separate canals. A literature review was conducted to clarify the prevalence of anatomical changes in the number of roots and canals in the maxillary second molar. The utilisation of a dental operating microscope facilitated the detection of the canal orifices in both cases. The objective of this study is to increase the knowledge of clinicians regarding the atypical structure of root canals by examining the complex differences found in maxillary second molars.
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Mamidibathula, Sri Devi, Rambabu Tanikonda, Rani sirisha Malkapuram, Eswari Priya Gummadi, and Priyanka Peta. "Comparison of pro taper rotary instruments endurance before initial signs of failure: An in vitro study." IP Annals of Prosthodontics and Restorative Dentistry 10, no. 3 (2024): 208–13. http://dx.doi.org/10.18231/j.aprd.2024.040.

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The study aimed to evaluate the number of canals enlarged with a Pro Taper rotary instrument that could be safely used before the instrument showed initial signs of failure.In the study, we included 150 freshly extracted human molars with canal curvatures of ≤200. Teeth were divided into two groups (n=225 canals for each group) according to the type of rotary file system used. In Group 1, Root canals were instrumented with Pro Taper Universal (PTU) rotary files; in Group 2, Root canals were instrumented with Pro Taper Gold (PTG) rotary files. Each file was used in canals as per the instrument sequence suggested by the manufacturer till the file showed initial signs of failure. Whenever a file showed initial signs of failure, it was discarded, and the number of canals enlarged with that rotary file was noted. A new file of the same size was used in the next canal. The data were analyzed with the independent t-test. The significance level was set at 0.05. The mean number of canals enlarged using Pro Taper Gold (12) was higher compared to Pro Taper Universal (10). There was a statistically significant difference in the number of canals enlarged by Pro Taper Gold and Pro Taper Universal files (p=0.001).Pro Taper Gold was used to enlarge more root canals compared with the Pro Taper Universal, before showing initial signs of failure.
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Sana, U., I. U. Niazi, R. S. Din, M. Rasheed, I. Haider, and O. Yousaf. "Root. Canal. Morphology. of Mandibular. First. Permanent. Molars. in a Pakistani. Sub-population." Pakistan Journal of Medical and Health Sciences 15, no. 6 (2021): 1314–16. http://dx.doi.org/10.53350/pjmhs211561314.

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Aim : To investigate the number and. patterns of. root canals. of mandibular. first. molars.. Methods.: Descriptive observational study to investigate the canal morphology using clearing technique. The duration of the study was one year from 1st February 2020 to 1st February 2021.Non purposive sampling technique was used and 200 mandibular first molar were collected. Data collected was analysed using the SPSS Vr 10. Study variables include Number and pattern of the roots in mandibular teeth. Descriptive statistics were used; frequencies of the root canals and their canal pattern were calculated. Results: In the mesial root, 14 teeth had a one root canal,186 possessed double root canals were observed. Distal root of 160 teeth possessed one canal, 40 teeth possessed two root canals with type 1 pattern mostly observed. Conclusion: Like other populations Pakistani population may have a diverse root canal system in the mandibular molars that ultimately affect endodontic therapy. Keywords: Roots, canals, anatomy, tooth clearing technique, demineralization
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Khosravifard, Negar, Zahra Dalili Kajan, and Homayoon Hasanpoor. "Cone beam computed tomographic survey of the mesiobuccal root canal anatomy in the maxillary first and second molar teeth of an Iranian population." European Journal of Dentistry 12, no. 03 (2018): 422–27. http://dx.doi.org/10.4103/ejd.ejd_60_18.

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ABSTRACT Objective: The objective of this study was to evaluate the mesiobuccal (MB) root canal(s) anatomy of the maxillary first and second molar teeth in an Iranian population. Materials and Methods: Cone beam computed tomography images of 280 teeth (145 maxillary first molars and 135 maxillary second molars) were analyzed to determine the number and types of the MB root canals. Chi-square test was used to examine the relationship between the number of MB canals and sex and Mann–Whitney analysis was used to define the relationship between the number of canals and the buccopalatal dimension of the MB roots. The level of interobservers' agreement was assessed with Kappa test. Results: Nearly 44.8% of the first molar and 18.5% of the second molar teeth had an additional MB canal (MB2). Types I and III of root canals had the highest frequencies. There was no significant relationship between the number of MB root canals of maxillary first and second molars and sex (P = 0.829). The relationship between the buccopalatal dimension of the MB roots and the number of root canals was shown to be statistically significant (P = 0.001). Conclusion: Presence of MB2 had a relatively high frequency, especially in the maxillary first molars. The mean buccopalatal dimension of the MB roots showed to be interrelated with the number of root canals.
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Pamadya, Sandy, Mirza Aryanto, Nurani Hayati, and Johannes Dhartono. "Evaluasi jumlah saluran akar gigi premolar pertama atas menggunakan teknik radiografi periapikal pararel dan Cone Beam Computed Tomography." Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI) 5, no. 1 (2021): 7. http://dx.doi.org/10.32793/jrdi.v5i1.671.

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Objectives: Maxillary and mandibular first premolars are amongst the teeth that has a risk to caries and needed to be treated. These teeth were varied in term of root and root canal amount. A successful root canal treatment in premolar teeth is highly dependent on the identification of the number and shape of root canals according to Vertucci. Radiographs are still the main choice in helping dentists establish an adequate diagnosis and treatment plan for root canal treatment. Conventional radiographs produce two-dimensional images which often cause difficulties in interpreting the resulting radiograph images. Modern imaging modalities such as CBCT can be used to produce a more accurate image. The aim of this study was to determine whether there is a difference in the number of root canals of maxillary first premolar teeth displayed on periapical radiographs and CBCT and also to test the accuracy of periapical radiographs in detecting the number of root canals of maxillary first premolar teeth compared to CBCT radiographs.
 Materials and Methods: This research was experimented by performing periapical radiological examinations and CBCT on 50 maxillary premolar teeth samples, then evaluating the number of visible root canals.
 Results: The results showed that there was a significant difference in the number of root canals seen on the periapical radiograph and CBCT.
 Conclusion: CBCT radiographs have the advantage of detecting the number of root canals of maxillary premolars more accurately than periapical radiographs.
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Dissertations / Theses on the topic "Number Of Canals"

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Martin, Valerie 1975 July 31. "Stepfamilies in Canada : numbers, characteristics, stability and childbearing." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115641.

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The following thesis examines stepfamilies in Canada within a socio-demographic framework, using the 2001 General Social Survey (GSS) on families, and is divided into three main sections. First, there is an extended literature review on family theory and the emergence of stepfamilies. This section provides the background for a discussion of why stepfamilies are still often perceived as problematic and, therefore, stigmatized; we also define different stepfamily forms. The question of how to measure stepfamilies is a major concern in this research. Indeed, depending on whether one takes a residential or an inter-residential perspective, the number of households involved in stepfamily life changes substantially. We first present a cross-sectional perspective by describing the stepfamilies examined at survey. The main focus here is to compare stepfamilies with intact and lone parent families in order to see the extent and nature of the differences between them. Our results suggest that stepfamilies do not differ as much as expected from intact families with regard to certain socioeconomic variables, such as income. The next stage involves an analysis of stepfamilies in a longitudinal perspective in order to better understand stepfamily dynamics. In doing so, we focus on stepfamily instability and the likelihood of having a common child, applying the method of event history analysis. In this longitudinal perspective, we find that stepfamilies face a high risk of experiencing a separation and that this risk increases substantially over time; we also find that stepfamily couples living in a common-law union have a higher risk of separation than those who are married. The arrival of a common child within a stepfamily appears to be determined mainly by the age of the mother and of existing children. The younger the mother and the younger the children, the more likely a stepfamily is to witness the arrival of a common child. The most compelling finding of this research lies in the differences observed in the outcomes of male and female respondents with regard to their stepfamily dynamics.
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Astels, Stephen. "Cantor sets and numbers with restricted partial quotients." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0017/NQ38215.pdf.

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Skwarchuk, Sheri-Lynn. "Children's acquisition of the English cardinal number words, a special case of vocabulary development." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0011/NQ30648.pdf.

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Muzychka, Yuri Stephan. "Analytical and experimental study of fluid friction and heat transfer in low Reynolds number flow heat exchangers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0015/NQ38258.pdf.

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Raule, Giacomo. "Studio delle criticità idrauliche del Canale di Bonifica Zonara Masere." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Nella presente tesi è stato fatto un modello idrologico della Zonara Masere tramite l'utilizzo di SWMM. Svolta la simulazione dello stato attuale sono state individuate le criticità ed in seguito sono stati ipotizzati vari scenari di soluzione delle criticità. Infine trovata la soluzione ottimale si è effettuata una prima fase di progettazione delle opere di prevenzione ed una stima economica del costo della realizzazione del progetto. La tesi è stata svolta presso il Consorzio di Bonifica della Romagna nella sede di Rimini
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Walker, Richard Thomas. "A comparative investigation of the root number and canal anatomy of permanent teeth in a Southern Chinese population." Thesis, [Hong Kong : University of Hong Kong], 1987. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12335423.

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Ruhault, Sylvain. "Security analysis for pseudo-random number generators." Thesis, Paris, Ecole normale supérieure, 2015. http://www.theses.fr/2015ENSU0014/document.

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La génération d’aléa joue un rôle fondamental en cryptographie et en sécurité. Des nombres aléatoires sont nécessaires pour la production de clés cryptographiques ou de vecteurs d’initialisation et permettent également d’assurer que des protocoles d’échange de clé atteignent un niveau de sécurité satisfaisant. Dans la pratique, les bits aléatoires sont générés par un processus de génération de nombre dit pseudo-aléatoire, et dans ce cas, la sécurité finale du système dépend de manière cruciale de la qualité des bits produits par le générateur. Malgré cela, les générateurs utilisés en pratique ne disposent pas ou peu d’analyse de sécurité permettant aux utilisateurs de connaître exactement leur niveau de fiabilité. Nous fournissons dans cette thèse des modèles de sécurité pour cette analyse et nous proposons des constructions prouvées sûres et efficaces qui répondront à des besoins de sécurité forts. Nous proposons notamment une nouvelle notion de robustesse et nous étendons cette propriété afin d’adresser les attaques sur la mémoire et les attaques par canaux cachés. Sur le plan pratique, nous effectuons une analyse de sécurité des générateurs utilisés dans la pratique, fournis de manière native dans les systèmes d’exploitation (/dev/random sur Linux) et dans les librairies cryptographiques (OpenSSL ou Java SecureRandom) et nous montrons que ces générateurs contiennent des vulnérabilités potentielles<br>In cryptography, randomness plays an important role in multiple applications. It is required in fundamental tasks such as key generation and initialization vectors generation or in key exchange. The security of these cryptographic algorithms and protocols relies on a source of unbiased and uniform distributed random bits. Cryptography practitioners usually assume that parties have access to perfect randomness. However, quite often this assumption is not realizable in practice and random bits are generated by a Pseudo-Random Number Generator. When this is done, the security of the scheme depends of course in a crucial way on the quality of the (pseudo-)randomness generated. However, only few generators used in practice have been analyzed and therefore practitioners and end users cannot easily assess their real security level. We provide in this thesis security models for the assessment of pseudo-random number generators and we propose secure constructions. In particular, we propose a new definition of robustness and we extend it to capture memory attacks and side-channel attacks. On a practical side, we provide a security assessment of generators used in practice, embedded in system kernel (Linux /dev/random) and cryptographic libraries (OpenSSL and Java SecureRandom), and we prove that these generators contain potential vulnerabilities
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Heath, Kristy Marie. "Fluid Mud Formation in the Petitcodiac River, New Brunswick, Canada." Thesis, Boston College, 2009. http://hdl.handle.net/2345/922.

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Thesis advisor: Gail C. Kineke<br>Experiments were conducted in the Petitcodiac River in New Brunswick, Canada during June and August 2006 to study high-concentrations of suspended sediment in a turbulent system. This study will evaluate the conditions necessary for fluid mud formation by investigating 1) the suppression of turbulence at gradient Richardson numbers greater than 0.25; 2) a threshold condition for the amount of sediment a flow can maintain in a turbulent suspension; and 3) the influence of flocculation on vertical suspended-sediment transport. Direct measurements of salinity, temperature, current velocity, and suspended-sediment concentration were collected during accelerating and decelerating flows and when fluid mud formed. In June, current velocities were typically above 1 m s-1 and suspended-sediment concentrations were generally less than 10 g l -1. In August, current velocities were typically less than 1.5 m s-1, suspended-sediment concentrations were greater than 10 g l -1, and a high-concentration bottom layer formed rapidly during decelerating flood currents. Gradient Richardson numbers for concentrations greater than 10 g l -1 were generally greater than 0.25, suggesting strong density gradients have the ability to suppress turbulence. Results from the Petitcodiac suggest a carrying capacity threshold might exist, but is based on a critical gradient Richardson number between 1.0 and 2.0 rather than the previously accepted value of 0.25. Differences in the evolution of disaggregated grain size distributions for settling suspensions suggest flocculation plays an important role for fluid mud formation by enhancing settling of fine sediments<br>Thesis (MS) — Boston College, 2009<br>Submitted to: Boston College. Graduate School of Arts and Sciences<br>Discipline: Geology and Geophysics
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Souza, Edilson Guimarães de. "Análise experimental e numérica de convecção forçada em arranjo de obstáculos dentro de canal /." Ilha Solteira : [s.n.], 2010. http://hdl.handle.net/11449/88857.

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Resumo: O objetivo deste trabalho é a análise numérica e experimental de escoamento viscoso, incompressível, permanente, com transferência de calor, em um canal estreito contendo um arranjo de obstáculos retangulares. A análise experimental envolveu determinação de coeficiente de transferência de calor médio bem como o número de Nusselt médio e medidas de temperatura em esteira térmica para comparação com os resultados obtidos por simulação numérica. Para a análise numérica usamos o programa comercial de mecânica dos fluidos e transferência de calor computacional ICEPAK®. Verificamos que quanto mais adentro o obstáculo estiver no arranjo maior é a transferência de calor por convecção forçada. Determinamos coeficientes de transferência de calor médio e número de Nusselt médio (com incerteza entre 6 e 15%) e verificamos que o efeito da posição diminui à medida que a velocidade aumenta. Concluímos também que ambos os modelos de turbulência utilizados, k-ε padrão e k-ε RNG, foram incapazes de predizer o efeito da posição apropriadamente. Entretanto, o modelo k-ε RNG apresentou melhor comportamento, pois o seu uso resultou em soluções com valores de temperatura intermediários aos experimentais<br>Abstract: The purpose of this work is the study of the numerical and experimental viscous incompressible steady flow with heat transfer into a narrow channel containing a rectangular array of obstacles. The experimental approach involves determining the coefficient of heat transfer and temperature measurements in thermal wake for comparison with the results obtained in numerical simulations. For the numerical analysis we use the commercial program of fluid mechanics and heat transfer computational ICEPAK™. We confirmed that in the last lines of the array the biggest is the heat transfer by forced convection. We determined the average heat transfer coefficients (with uncertainty between 6 and 15%) and found that the effect of the position decreases as flow speed increases. We use in the simulations the k-ε turbulence model and the k-ε RNG turbulence model. We conclude that both turbulence models used were unable to predict the effect of the position properly. However, the k-ε RNG model showed better behavior. The numerical temperatures with this model were consistent to the experimental temperature<br>Orientador: João Batista Campos Silva<br>Coorientador: Amarildo Tabone Paschoalini<br>Coorientador: Marcio Antonio Bazani<br>Banca: Ricardo Alan Verdú Ramos<br>Banca: Marcio Higa<br>Mestre
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Man, Kin Foon. "Divine anger, divine holiness and the exclusion of Moses in Numbers and Deuteronomy." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31119.

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This dissertation investigates the exclusion of Moses from the Promised Land in Numbers and Deuteronomy. Why are there different reasons given for his exclusion in the two books? Can they be explained by the complex redactions of Deuteronomy? There are four different answers to the question of Moses’ exclusion. According to Deut 1-3, divine anger is directed at Moses because he is the leader of the first exodus generation on whom the wrath of God is visited. Moses is excluded because he should bear the same punishment as the first generation of Israelites who left Egypt. Another reason is given in Deut 4, a mixture of late layers in the Deuteronomistic History. Accordingly, Moses’ exclusion is compared to the destruction and scattering of the future generations of the Israelites who provoked God to anger. The “anger-punishment pattern” of Moses’ exclusion, which is a theme of divine anger in the Deuteronomistic History, is used to confess the sin of the Israelites. Thirdly, in the post-Priestly passages in Numbers and Deuteronomy, Moses is ordered to die because of the sin of failing to sanctify YHWH. The exclusion of Moses is a natural consequence of his death outside the Promised Land. Finally, Deut 31 and 34 imply that Moses has reached the limit of life span which was set by YHWH.
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Books on the topic "Number Of Canals"

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International Workshop on Diophantine Methods, Lattices, and Arithmetic Theory of Quadratic Forms (2011 Banff, Alta.). Diophantine methods, lattices, and arithmetic theory of quadratic forms: International workshop, Banff International Research Station, November 13-18, 2011, Banff, Alberta, Canada. Edited by Chan, Wai Kiu, 1967- editor of compilation, Fukshansky, Lenny, 1973- editor of compilation, Schulze-Pillot, Rainer, editor of compilation, and Vaaler, Jeffrey D., editor of compilation. American Mathematical Society, 2013.

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Canada. Statistics Canada. 1991 Census. Families: number, type and structure: the nation. Statistics Canada, 1991.

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Alta.) WIN (Conference) (2nd 2011 Banff. Women in Numbers 2: Research directions in number theory : BIRS Workshop, WIN2 - Women in Numbers 2, November 6-11, 2011, Banff International Research Station, Banff, Alberta, Canada. Edited by David Chantal 1964-, Lalín Matilde 1977-, and Manes Michelle 1970-. American Mathematical Society, 2013.

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Sands, Trent. Reborn in Canada. 3rd ed. Breakout Productions, 1999.

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Wigney, Edward H. Serial numbers of the C.E.F. E.H. Wigney, 1996.

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Canada. Statistics Canada. 1991 Census. Equivalent enumeration areas, 1991 and 1986: enumeration area reference lists. Statistics Canada, 1991.

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Cojocaru, Alina Carmen, Chantal David, and F. Pappalardi. Scholar, a scientific celebration highlighting open lines of arithmetic research: Conference in honour of M. Ram Murty's mathematical legacy on his 60th birthday, October 15-17, 2013, Centre de Recherches Mathematiques, Universite de Montreal, Quebec, Canada. Edited by Murty Maruti Ram editor. American Mathematical Society, 2015.

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Law, Clive M. Regimental numbers of the Canadian army, 1936-1960. Service Publications, 2000.

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Conference on Harmonic Analysis and Number Theory (1996 McGill University). Harmonic analysis and number theory: Papers in honour of Carl S. Herz : proceedings of a Conference on Harmonic Analysis and Number Theory, April 15-19, 1996, McGill University, Montréal, Canada. Edited by Herz C. 1930-, Drury S. W. 1946-, and Murty Maruti Ram. American Mathematical Society, 1997.

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Rajiv, Gupta, and Williams Kenneth S, eds. Number theory: Fifth Conference of the Canadian Number Theory Association, August 17-22, 1996, Carleton University, Ottawa, Ontario, Canada. American Mathematical Society, 1999.

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Book chapters on the topic "Number Of Canals"

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Quispe-Quispe, Betsy, Nelly Beatriz Quispe-Maquera, and Hernán Freddy Ortega Cruz. "Efficacy of the Number of Applications of Ozonized Propylene Glycol in the Disinfection of Root Canals." In Smart Innovation, Systems and Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-92651-8_37.

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Vališová, Marie. "Řečové akty omluvy u českých studentů v angličtině (L2): vybrané výsledky pilotáže." In Výzkum v didaktice cizích jazyků II. Masaryk University Press, 2019. http://dx.doi.org/10.5817/cz.muni.p210-9547-2019-8.

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During the second half of the 20th century, there was a shift in focus in second language acquisition research from linguistic competence to communicative and pragmatic competence (Hymes, 1972; Canale &amp; Swain, 1980; Canale, 1983; Bachman, 1990; Bachman &amp; Palmer, 1996; Usó-Juan &amp; Martínez-Flor, 2006). This resulted in a growing number of studies on speech acts in general. Motivated by a lack of studies on the speech acts of apology in conversations of Czech learners of English as a foreign language, my dissertation project aims to shed light on apology strategies used by Czech university students.
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Beaudry-Godin, Mélissa, Robert Bourbeau, and Bertrand Desjardins. "Extreme Longevity in Quebec: Factors and Characteristics." In Demographic Research Monographs. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49970-9_12.

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AbstractThe recent decrease in adult and late-life mortality led to a very rapid increase in the number of centenarians within low mortality countries. This chapter examines the increase in the number of centenarians in Quebec (Canada) across birth cohorts (1871–1901), and outlines some of the underlying demographic mechanisms involved. We study the demographic situation of centenarians from Quebec (Canada) using all aggregated data available since 1871 (census data, vital statistics, and population estimations). Census data and population estimates are taken from Statistics Canada, while vital statistics come from the Canadian Human Mortality Database (CHMD, 2014 www.bdlc.umontreal.ca) and the Institut de la statistique du Québec.With demographic indicators such as the centenarian ratio, the survival probabilities and the maximal age at death, we try to demonstrate the remarkable progress realised in old age mortality. We also analyze the determinants of the increase in the number of centenarians in Quebec: increase in the size of birth cohorts, increase in the probabilities of surviving from birth to age 80 and from age 80 to 100 for specific cohorts, change in the number of persons aged 100 and over relative to the number of persons reaching exact age 100 and net change due to migration and other factors (errors). This decomposition shows that, among the factors identified, the improvement in late-life mortality (from age 80 to 100) is the main determinant of the increase of the number of centenarians.This study stresses the importance of monitoring the number as well as the quality of life of this emerging population of centenarians. It also helps us gain greater perspective on what should be expected in the coming years among low mortality countries such as Canada.
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Miron, Jennifer B. "Academic Integrity in Work-Integrated Learning (WIL) Settings." In Academic Integrity in Canada. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-83255-1_12.

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AbstractThis chapter highlights the imperative for attention to, and action in, the promotion of academic integrity in work-integrated learning (WIL) settings across post-secondary programs. The importance of such efforts are closely tied to the efforts of strengthening ethical comportment with graduates who will go on to contribute to client care, client service, leadership, and research that will directly impact members of the public, hiring organizations, and global systems. WIL settings provide invaluable opportunities for students to learn essential skills and acculturate to professional ethical values through real world experiences. The experiential learning that happens in these settings helps influence the professionalization of students, encouraging safe, ethical practice that benefits those receiving care/service, future employers, and society. Since WIL is offered in both college and university settings and occurs across a number of professional and service programs, it has the potential to significantly influence a vast and varied number of professionals entering numerous career paths around the world. All members of learning communities in post-secondary organizations have a responsibility to understand their roles and opportunities in supporting, maintaining, and promoting academic integrity across WIL settings. While the narrative for the chapter is Canadian, the observations and recommendations may be relevant in other countries, where WIL plays a significant role in the education and development of professionals and service providers across a number of professions and trades.
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Bérard-Chagnon, Julien. "Using Tax Data to Estimate the Number of Families and Households in Canada." In Emerging Techniques in Applied Demography. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8990-5_10.

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Rabin, Richard L., Jaehong Han, and Douglas J. Rhee. "Ab-Interno Trabeculotomy." In Minimally Invasive Glaucoma Surgery. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5632-6_4.

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Abstract The Trabectome (NeoMedix Corporation, San Juan Capistrano, CA, USA) is a US Food and Drug Administration—approved surgical device which removes a segment of the trabecular meshwork and the inner wall of the Schlemm’s canal using an ab-interno approach, enhancing aqueous outflow via increased access to the Schlemm’s canal and the collector channels. This is a bleb-less procedure which spares the conjunctiva, hence does not adversely affect the outcome of subsequent conventional glaucoma filtration surgeries. Multiple studies have shown that Trabectome surgery results in a reduction in IOP and the number of ocular hypotensive agents, though the efficacy is modest compared with conventional filtration surgery. The safety profile of Trabectome surgery is favorable compared with conventional glaucoma surgery, with the most common complication being intraoperative and postoperative bleeding. Additional research is required to understand how the efficacy of Trabectome surgery can be maximized.
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Madore, Barry F., and Wendy L. Freedman. "The HST Key Project on the Extragalactic Distance Scale: A Search for Three Numbers." In Stellar Candles for the Extragalactic Distance Scale. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-39882-0_1.

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Fiore, Danae, Bryn Tapper, Dagmara Zawadzka, and Agustín Acevedo. "Rock Art Research and Knowledge-Production in the Context of Globalizations. A Comparative Approach to the Cases of Patagonia-Argentina and Eastern Canada." In Deep-Time Images in the Age of Globalization. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-54638-9_7.

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AbstractIn this chapter, we discuss the impacts different globalizations (in plural) have had on the development of rock art research in Argentina and Canada over time. In particular, we focus on: (1) the initial or pioneer views on deep-time rock art in Eastern Canada and Patagonia (those of voyagers, explorers, militaries, and missionaries); (2) the development of archaeologies of art in the strict academic sense of the term (e.g. culture-history and stylistic approaches as well as processual approaches, following and creatively adapting international academic trends); and (3) a number of new theoretical approaches associated with post-processualism, including landscape archaeology, ecological approaches, materiality, and, more recently, the ‘ontological turn’. These three periods in the history of Western thought on deep-time rock art emerged in different contexts and under specific historical conditions, yet are characterised by the globalization of theoretical concepts from central areas of traditional academic theoretical production (i.e. Europe and USA), towards South America and Canada. In sum, we show how interpretations of deep-time Indigenous rock art in Eastern Canada and in Argentinean Patagonia were conceived under different conceptual frameworks according to different contexts of globalizations over time.
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Isbell, John Claiborne. "1. Writers from British North America." In Women Writers in the Romantic Age. Open Book Publishers, 2025. https://doi.org/10.11647/obp.0458.01.

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This chapter reviews 206 women writers, 1776-1848, from the region of British north America, divided here into Canada, the United States 18th century, and the United States 19th century. The United States is divided because of the great number of women found in that tradition. Writers range from Quakers to military strategists, encompassing abolitionists, hymn writers, apologists for the Confederacy, president’s wives, mill workers, adventurers, and homemakers. It covers lyric and epic poetry, theatre, and a wide variety of prose genres, from diary to romance.
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Klabe, Karsten, and Andreas Fricke. "Ab-Interno Canaloplasty and Ab-Interno Canaloplasty/Trabeculotomy in Glaucoma Patients Using the OMNI Surgical System." In Loss of Vision [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.110888.

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Eyes with Primary Open Angle Glaucoma (POAG) show anatomical changes within the trabecular outflow tract that increase aqueous humor outflow resistance and thus Intraocular Pressure (IOP). In these glaucomatous eyes, approximately 50–70% of the total outflow resistance is attributed by changes in the tissue of the Trabecular Meshwork (TM) and 30–50% by changes in Schlemm’s canal and/or the collector canals. In the last decade, a number of Minimally Invasive Glaucoma Surgeries (MIGS) have been developed to target the different tissue changes particularly. For example, goniotomy, trabeculotomy, and trans-TM implants target TM resistance, whereas canaloplasty, viscodilation, and stenting procedures target Schlemm’s canal and collector channels. Therefore, a procedure targeting multiple pathways of aqueous humor outflow might be more effective in lowering IOP. In a limited number of studies to date using the OMNI Surgical System either combined with phacoemulsification or as standalone system, IOP reductions of 20–35% and medication reductions of 25–75% have been reported. In this chapter, the experience in performing canaloplasty/trabeculotomy of Schlemm’s canal and distal collector channels using the OMNI Surgical System is described.
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Conference papers on the topic "Number Of Canals"

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Segall, S. M., R. A. Gummow, and R. G. Reid. "Evaluation of Classification and Prioritization Criteria Based on the Results of Direct Examinations." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08143.

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Abstract The ECDA process requires a continuous effort from the pipeline operator to improve the reliability of classification and prioritization criteria. Based on the results of the direct examinations, these criteria can be up-graded or down-graded as part of the retrospective evaluation and the number of such re-evaluations can be used as criteria in the long-term assessment of the ECDA effectiveness. This paper covers criteria evaluation and specific lessons learned by comparing the results of the direct examinations with predictions based on indirect inspections and pre-assessment data collected on more than 30 gas pipelines in Ontario, Canada.
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Alota, S., N. Azzerri, R. Bruno, et al. "Multilayer Electrogalvanizing of Steel Strip at High Current Density: Deposition Mechanisms, Coating Morphology and Corrosion Behaviour." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85386.

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Abstract High current density electrodeposition mechanisms of monolayer and multilayer coatings of Zn and Zn/Cr/CrOx were investigated. The effects of plating bath chemistry, temperature, current density, relative velocity between strip and electrolyte were examined in the laboratory by means of simulation systems involving the use of RCE, RDE and canal-shaped cell. Dependence between current density and Reynolds number resulting in an optimum structure and a macroscopically flat compact, silver-coloured coating with high corrosion resistance was evaluated. High current density electrogalvanized and multilayered Zn/Cr/CrOx steel strips were then produced on pilot-plant scale. They present an extremely fine grain coating and hence better corrosion resistance than similar materials made using the low current density technology. Moreover, the results confirm that the adoption of HCD electrocoating technologies for Zn/Cr/CrOx multilayer production permits great progress to be made in the development of materials with enhanced performance for use in the automotive industry.
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Swartz, Kenneth. "Airbus Helicopters in America: The Pioneering Years." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1327.

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The roots of Airbus Helicopters in North America can be traced back to 1955 when the US Army announced it was purchasing three Djinn helicopters for evaluation at Fort Rucker, Alabama. In the pioneering years, Airbus Helicopters - originally known as Sud Aviation (later Aerospatiale) and Bolkow (later Messerschmitt-Bolkow-Blohm) - worked through at least six different sales agents to break into the United States and Canadian market before they established their own subsidiaries in the 1970s in which merged in 1992 when Eurocopter was formed to combine the helicopter divisions of Aérospatiale and DASA (Deutsche Aerospace Aktiengesellschaft) located in France and Germany. Today, Airbus Helicopters accounts for a substantial share of new helicopter sales in the United States and Canada, but in the pioneering years it faced an uphill battle against a thriving American helicopter industry and strong "buy America" sentiment, such that the pioneering efforts by the European helicopter to gain a foothold in North America have been largely forgotten. This paper covers the period from the mid-1950s to 1969 when small number of Sud Aviation Djinn and Alouette II and III helicopters were operated in North America - with the majority migrating to Canada by the late 1960s.
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Paez, Jorge. "Using Multiphase Flow Modeling for the Selection and Application of Corrosion Inhibitors in Northern U.S. and Western Canada." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08536.

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Abstract Corrosion in sour downhole environments is one of the main challenges confronting operators in the Northern U.S. and Western Canada. Several research organizations around the world are working to develop models for characterizing hydrogen sulfide (H2S) corrosion and predicting sour corrosion rates. Unfortunately, the corrosion models developed so far are reliable for only low levels of H2S and can account for the influence of only a limited number of other variables. Multiphase flow modeling has proven to be an important tool for forecasting corrosive environments. Heat-transfer calculations and phase behavior are also useful tools for corrosion inhibitor selection and application. This paper presents two cases where flow modeling was applied in the forecasting of sour corrosion environments. Corrosion inhibition strategies were then recommended and implemented in order to solve the problem. Corrosion monitoring data confirmed the success of the inhibition strategies.
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Bahgat, Hycem, Ernesto Gudino, and Sorin Segall. "AC Interference and Mitigation at Pipeline Facilities – Case Study." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00117.

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Abstract An AC interference study was conducted in 2021 following a utility development with the addition of a high voltage AC powerline in Alberta, Canada. The study comprised of 11 pipelines and 4 powerlines collocating in several stretches totalling approximately 50 km of collocation, with various crossing locations. In the unmitigated state, the modelling results indicated that mitigation under fault conditions is required at 17 pipeline facilities. This paper discusses the strategies used to optimize the mitigation, considering the facilities specific conditions, some of the challenges faced by the install crews, and the changes to design during construction. The optimized design approach resulted in overall less mitigation requirements, smaller number of site visits, reduced construction footprint and environmental impact, and reduction in the overall project cost.
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McTavish, Sean, Hali Barber, and Alanna Wall. "Field Measurements of the Airflow in the Urban Environment: An RPAS Use-Case in Montreal, Canada." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1133.

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A use-case was conducted in Montréal in the summer and fall of 2023 to measure urban airflow characteristics using a small Remotely-Piloted Air System (sRPAS). The goal of the study was to acquire urban airflow data in a real environment in order to validate urban airflow characteristics from laboratory-scale testing conducted previously. The use-case took place in the downtown core of Montréal and involved flights from two hospitals to a variety of other buildings. The sRPAS was instrumented with an airflow measurement system. Fixed rooftop anemometer stations were also installed on top of buildings along the flight paths to measure urban airflow at altitudes within close proximity to rooftops. The study generated a valuable data set for characterizing sRPAS operations in urban environments. A number of operational challenges were experienced including the difficulty associated with visual line of sight operations with an urban backdrop, avoiding conditions that could lead to loss of command and control link, and the need to monitor electromagnetic interference during flight operations. The use-case produced evidence of the impact of urban airflows on the stability and response of sRPAS. High wind speeds and turbulence intensities were found in the urban flow field of Montréal. The sRPAS use-case results were used to validate wind-speed and turbulence characteristics from laboratory-scale testing on Canadian cities.
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Bahgat, Hycem, Daniel Hebb, Sorin Segall, Ernesto Gudino, Karl Shen, and Shan Jiang. "Case Study – Sharing an AC Mitigation System." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17786.

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Abstract An alternating current (AC) interference study was conducted in 2019 following a utility development project that included constructing a new substation and upgrading approximately 24 km of new AC transmission powerline sections in Alberta, Canada. The study comprised six transmission powerlines owned by one utility and eight pipelines owned by two different operators. The modelling results showed touch voltage hazards under steady-state and fault conditions and susceptibility to AC corrosion and coating stress above the established limits in the unmitigated state. A shared AC mitigation system was designed to eliminate the hazards caused by AC interference on all eight pipelines. This approach reduced overall mitigation requirements, number of site visits, construction footprint, environmental impact, and project costs. This paper describes the mitigation system's design, installation, and commissioning and discusses the benefits of a shared AC mitigation system approach.
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Clayton, John F., and John Glowacki. "Environmental Assisted Cracking of Brass Valves in Potable Water Service." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96263.

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Abstract Approximately 0.1% of 25000 leaded brass stop valves failed in potable water service in western Canada. All failures were brittle fractures in the reduced section of the barb at the shoulder. Increasing the wall thickness at that point stopped the failures. Failure was initiated in small but heavily work-hardened bands on the interior walls underneath patches of corrosion product. These appear to be due to microbial action. Crack growth occurred only in the reduced section by a variety of mechanisms including dezincification, anodic dissolution, corrosion fatigue, and stress corrosion cracking. Anomalous distribution of lead and zinc on the fractures was noted. The former was due to the corrosive breakdown of the lead particles in the brass. The low number of failures experienced indicated that the fracture process was complex enough to require that many conditional requirements be met to produce fracture.
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Kimber, Max J. "The Development of an Australian Standard for Fusion Bonded Epoxy on Line Pipe." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87031.

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Abstract Since 1980, nearly 3000km of oil and natural gas pipelines coated with fusion bonded epoxy resin have been laid in Australia. Because the Australian pipeline industry had no prior experience with fusion bonded epoxy, the specifications used for factory and field coating of pipe were mostly derived from specifications already developed in the United States of America, Canada, Britain and Europe. At that time, none of those countries had assembled a nationally accepted Standard, and only two, Canada and Germany have since published a national standard for the application of fusion bonded epoxy resin to pipelines. (Ref. 1,2) Because of the rapid accumulation of experience and a desire to provide the entire industry with a soundly based national standard, after prompting by the pipeline industry, the Standards Association of Australia assembled a group of appropriately qualified industry representatives to prepare a Standard for the application of fusion bonded epoxy on line pipe. The Standard is almost complete and should be issued in draft form for public comment in November 1986. This paper provides the history of fusion bonded epoxy coating of line pipe in Australia and includes a detailed description of the draft Australian Standard, together with options for a number of tests on materials and applied coating which could gain acceptance in the industry. It is hoped that the publication and use of a standard for application of fusion bonded epoxy resin on line pipe will result in a uniformity of requirements which should assist suppliers and users to reduce costs and further improve the quality of fusion bonded epoxy coating.
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Levy, Alan, and Nancy Jee. "The Erosion-Corrosion of Scales on Heat Exchanger Alloys." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87475.

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Abstract A number of in-bed tube sections of five different steel alloys that had been exposed in the Point Tupper atmospheric fluidized bed combustor (AFBC) by the Canada Center for Mineral and Energy Technology (CANMET) were metallographically analyzed. The tubes had been exposed at temperatures from 450° to 850°C for time periods from 1000 to 10,000 hours. It was determined that, generally, more metal was lost from the bottom outer surfaces of the tubes than from the tops as the result of two different scale loss mechanisms. The scale loss mechanisms were related to the different impact angles and velocities of the particles which struck the top and bottom surfaces of the tubes. The presence of AFBC bed material on and in the scales modified the scale loss behavior and, in the instance of at least one of the alloys, the 9Cr1Mo steel, appeared to provide some protection.
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Reports on the topic "Number Of Canals"

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Muxo, Robert, Kevin Whelan, Robert Muxo, and Kevin Whelan. Colonial nesting birds in Biscayne National Park: 2021?2022 nesting year summary. National Park Service, 2024. http://dx.doi.org/10.36967/2304740.

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The habitats within Biscayne National Park consist of rocky coast lines, Biscayne Bay (a shallow water bay), over 40 mangrove islands, and coral reefs. This ecosystem lies near the large metropolitan area of Miami, suburban development, a nuclear power plant, and has several canals that drain from the mainland into Biscayne National Park or close to park boundaries. As a result of the park?s proximity to a large population, it endures heavy usage. The park is a popular destination for anglers and boaters. All the aforementioned factors put stressors on the park ecosystem. The South Florida/Caribbean Network has developed a long-term monitoring program that focuses on the colonial nesting birds that use park resources for foraging, roosting, and nesting. The South Florida/Caribbean Network uses monthly helicopter flights to survey nine nesting colonies in or near the park. The nine colonies monitored are: Kings Road, Mangrove Key, West Arsenicker Key, Arsenicker Key, Jones Lagoon, Ragged Key 4, Ragged Key 5, Soldier Key, and Kings Bay. We focus on six species of birds: double-crested cormorants (Phalacrocorax auritus), great egrets (Ardea alba), great white herons (Ardea herodias occidentalis), great blue herons (Ardea herodias), white ibises (Eudocimus albus), and roseate spoonbills (Platalea ajaja). Data collection for this vital sign began in 2009. This report presents data regarding peak nesting, nesting indices, species abundance, and the nine nesting colonies. No forecasts are presented from the data collected in this report. Peak nest counts for five of the six focal species were lower in 2021?2022 than 2020?2021, except for white ibis, which increased relative to the previous nesting season. For the fourth consecutive season, peak nest counts for double-crested cormorants remain under 1,000 nests. For the number of species actively nesting by colony, our data indicate that two colonies increased, four colonies decreased, and three colonies remained the same relative to the previous nesting season. At least one of the focal species nested at all nine colonies, which has been consistent since the start of surveys.
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Battams, Nathan. Modern Family Finances: Seniors in Canada. The Vanier Institute of the Family, 2017. https://doi.org/10.61959/fzgd4308e.

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Canada’s population is rapidly aging, which means a growing number of seniors across the country are managing household finances in an evolving economic climate. In this context, many are choosing to remain in – or return to – the paid labour market to manage their financial responsibilities, while others focus on other diverse income sources to meet their needs.
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Battams, Nathan. A Snapshot of Grandparents in Canada (May 2019 Update). The Vanier Institute of the Family, 2019. http://dx.doi.org/10.61959/disx1332e.

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Canada’s grandparents are a diverse group. Many of them contribute greatly to family functioning and well-being in their roles as mentors, nurturers, caregivers, child care providers, historians, spiritual guides and “holders of the family narrative.”As Canada’s population ages and life expectancy continues to rise, their presence in the lives of many families may also increase accordingly in the years to come. With the number of older Canadians in the workforce steadily increasing, they are playing a greater role in the paid labour market – a shift felt by families who rely on grandparents to help provide care to their grandchildren or other family members. All the while, the living arrangements of grandparents continue to evolve, with a growing number living with younger generations and contributing to family households.Using newly released data from the 2017 General Social Survey, we’ve updated our popular resource A Snapshot of Grandparents in Canada, which provides a statistical portrait of grandparents, their family relationships and some of the social and economic trends at the heart of this evolution.
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Young and Wasson. GRI-90-0229 Casing Leak Repair. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0010909.

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This effort studied the leakage of gas from storage wells by performing an industry survey of operators. Over 74* of the injection/production wells in the U.S. and Canada were covered by the survey. The survey included the number of well leaks per year, the average leak rate, and the type of leak. A cost-benefit analysis of repair techniques was performed to identify the most effective repair methods.
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Pargeter. L51507 Field Weldability of High-Strength Pipeline Steels. Pipeline Research Council International, Inc. (PRCI), 1986. http://dx.doi.org/10.55274/r0010535.

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This document reports on research to assess the weldability of a range of high-strength (X80 grade) line pipe steels using both small-scale weldability trials, the Welding Institute of Canada test, and full-scale girth welds. Hardness and tensile tests were used to assess strength, and Charpy V and crack tip opening displacement tests were used to assess toughness. Experimental results are provided and a number of conclusions are listed.
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Zilberman, Mark. Methods to Test the “Dimming Effect” Produced by a Decrease in the Number of Photons Received from Receding Light Sources. Intellectual Archive, 2021. http://dx.doi.org/10.32370/ia_2021_06_22.

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The hypothetical “Dimming effect” describes the change of the number of photons arriving from a receding light source per unit of time. In non-relativistic systems,the "Dimming effect" occurs due to the fact that as light sources move away, the distance between the emitter and the receiver constantly increases, and the photons always take longer to reach the receiver. This reduces the number of photons received per time unit compared to the number of emitted photons per time unit. Negligible for speeds incomparable with the speed of light c, the "Dimming effect" can be very significant for speeds above 0.1c. “Dimming effect” can possibly be tested in a physics labor-atory using a moving light source (or mirror) and photon counters located in the travel direction and in opposite direction. It can possibly also be tested utilizing the orbital movement of the Earth around the Sun. If confirmed, “Dimming effect” would allow astronomers to adjust values of the "Standard Candles", which are critical in cosmological models. Absence of “Dimming effect” will mean that the number of photons arriving per time unit does not depend on the relative speed of light source and observer,which is not so apparent
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Maeno, Yoshiharu. Epidemiological geographic profiling for a meta-population network. Web of Open Science, 2020. http://dx.doi.org/10.37686/ser.v1i2.78.

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Epidemiological geographic profiling is a statistical method for making inferences about likely areas of a source from the geographical distribution of patients. Epidemiological geographic profiling algorithms are developed to locate a source from the dataset on the number of new cases for a meta-population network model. It is found from the WHO dataset on the SARS outbreak that Hong Kong remains the most likely source throughout the period of observation. This reasoning is pertinent under the restricted circumstance that the number of reported probable cases in China was missing, unreliable, and incomprehensive. It may also imply that globally connected Hong Kong was more influential as a spreader than China. Singapore, Taiwan, Canada, and the United States follow Hong Kong in the likeliness ranking list
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Kerr, D. E., A. Plouffe, J E Campbell, and I. McMartin. Status of surficial geology mapping in northern Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331420.

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The Geo-mapping for Energy and Minerals (GEM) program has facilitated the availability of new and converted surficial geology maps and associated digital data sets for large sectors of northern Canada, leading to about 70% of the North being mapped and digitally available. Development of the Surficial Data Model and Canadian Geoscience Map (CGM) series has streamlined the publication process and created a common standard digital-map format and geodatabase. Based on traditional and more recent remote predictive mapping methodologies, there are now three types of surficial geology CGM maps produced: surficial geology, reconnaissance surficial geology, and predictive surficial geology. The considerable number of new surficial geology maps published during the two phases of the GEM program, as well as upcoming map publications, has resulted in an increase of 12% in map coverage north of 60°, constituting a significant legacy of the GEM program.
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Fader, G. B. J., R. O. Miller, and B. J. Todd. Unusual features in Halifax Harbour, Nova Scotia, Canada, part 2. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331505.

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The seabed of Halifax Harbour contains a number of features that can be classified into natural and anthropogenic features. Natural features are formed by nature and consist of bedforms such as sand waves, sedimentary furrows, boulder berms, moraines, pockmarks, etc. Anthropogenic features are those formed by human activity and include anchor marks, cables, shipwrecks, dredge spoils, bridge and dock remains. The anthropogenic imprint on the Harbour bottom is very dense, particularly in the inner Harbour, and makes the collection of natural unaffected samples difficult. This poster illustrates and describes anchor marks, gassy sediments, sedimentary furrows, pockmarks, the remnants of submarine net emplacements, vehicles dumped on the seabed, and an area of seafloor rich in glass bottles.
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Zilberman, Mark. Methods to Test the “Dimming Effect” Produced by a Decrease in the Number of Photons Received from Receding Light Sources. Intellectual Archive, 2020. http://dx.doi.org/10.32370/iaj.2437.

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The hypothetical “Dimming Effect” describes the change of the number of photons arriving from a moving light source per unit of time. In non-relativistic systems, the “Dimming effect” may occur due to the growing distance of light sources moving away from the receiver. This means that due to the growing distance, the photons continuously require more time to reach the receiver, which reduces the number of received photons per time unit compared to the number of emitted photons. Understandably, the proposed “Dimming effect” must be tested (confirmed or rejected) through observations. a. This article provides the formula for the calculation of “Dimming effect” values using the redshift parameter Z widely used in astronomy. b. The “Dimming effect” can possibly be detected utilizing the orbital movement of the Earth around the Sun. In accordance to the “Dimming effect”, observers on Earth will view 1.0001 more photons per time unit emitted by stars located near the ecliptic plane in the direction of the Earth orbiting the Sun. And, in contrast, observers will view only 0.9999 photons per time unit emitted by stars located near the ecliptic plane in the direction opposite to the Earth orbiting the Sun. Calculating precise measurements of the same stars within a 6-month period can possibly detect this difference. These changes in brightness are not only for specific stars, as the change in brightness takes place for all stars near the ecliptic in the direction of the Earth’s orbit around the Sun and in the opposite direction. c. The “Dimming effect” can possibly be detected in a physics laboratory using a moving light source (or mirror) and photon counters located in the direction of travel and in the opposite direction. d. In theory, Dilation of time can also be used for testing the existence of the “Dimming effect.” However, in experiments on Earth this effect appears in only the 14th digit after the decimal point and testing does not appear to be feasible. e. Why is it important to test the “Dimming effect?” If confirmed, it would allow astronomers to adjust values of "Standard Candles" used in astronomy. Since “Standard Candles” are critical in various cosmological models, the “Dimming effect” can correct models and/or reveal and support new models. If it is proved that the “Dimming effect” does not exist, it will mean that the number of photons arriving per unit of time does not depend on the speed of the light source and observer, which is not so apparent.
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