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Journal articles on the topic "Intermittent mouth":
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Lobprise, Heidi B., and Robert B. Wiggs. "Modified Surgical Treatment of Intermittent Open-Mouth Mandibular Locking in a Cat." Journal of Veterinary Dentistry 9, no. 1 (March 1992): 8–12. http://dx.doi.org/10.1177/089875649200900102.
Intermittent open-mouth locking related to disorders of the temporomandibular joint are not uncommon. As a result of joint laxity, the mandible shifts to one side. The coronoid process then becomes locked lateral to the zygomatic arch. These patients present with the mouth opened and an inability to close the mouth. This article describes a case of intermittent open-mouth mandibular locking in a cat and a modified surgical treatment combining zygomatic arch and coronoid process reduction.
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Arwyn-Jones, James, and Ashwin Kerai. "Recurrent mouth ulcers." InnovAiT: Education and inspiration for general practice 12, no. 3 (January 17, 2019): 137–43. http://dx.doi.org/10.1177/1755738018794719.
Mouth ulcers are common and produce a variety of symptoms, ranging from intermittent discomfort to debilitating pain with effects on speech, chewing and swallowing. Clinically, mouth ulcers can be challenging, as a wide range of diagnoses can give rise to lesions of similar appearance. Although the majority of lesions are benign and require little clinical input, others may signify undiagnosed systemic disease or malignancy, warranting prompt investigation and treatment. Separation of differential diagnoses is driven largely by a thorough history and identification of malignant features on examination. We provide an overview of mouth ulcers and a guide to management.
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Nehme, Rafaela, Flávia M. S. de Branco, Públio F. Vieira, Ana Vitória C. Guimarães, Gederson K. Gomes, Gabriela P. Teixeira, Pedro H. Rodrigues, et al. "Single and Serial Carbohydrate Mouth Rinsing Do Not Improve Yo-Yo Intermittent Recovery Test Performance in Soccer Players." International Journal of Sport Nutrition and Exercise Metabolism 32, no. 1 (January 1, 2022): 22–29. http://dx.doi.org/10.1123/ijsnem.2021-0174.
Carbohydrate (CHO) mouth rinsing seems to improve performance in exercises lasting 30–60 min. However, its effects on intermittent exercise are unclear. It is also unknown whether serial CHO mouth rinses can promote additional ergogenic effects when compared with a single mouth rinse. The aim of this study was to evaluate the effect of single and serial CHO mouth rinses on Yo-Yo Intermittent Recovery Test Level 1 (Yo-Yo IR1) performance in soccer players. In a randomized, crossover, double-blind, placebo-controlled design, 12 male (18.9 ± 0.5 years) soccer players performed eight serial mouth rinses under three different conditions: placebo solution only (noncaloric juice), seven placebo mouth rinses plus a single CHO mouth rinse (8% maltodextrin), or eight CHO mouth rinses (8-CHO). Following the final mouth rinse, individuals performed the Yo-Yo IR1 test to evaluate the maximal aerobic endurance performance measured via total distance covered. There were no differences in Yo-Yo IR1 performance between sessions (p = .32; single CHO mouth rinse (8% maltodextrin): 1,198 ± 289 m, eight CHO mouth rinses: 1,256 ± 253 m, placebo: 1,086 ± 284 m). In conclusion, single and serial CHO mouth rinsing did not improve performance during the Yo-Yo IR1 for soccer players. These data suggest that CHO mouth rinsing is not an effective ergogenic strategy for intermittent exercise performance irrespective of the number of rinses.
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Lewis, D. D., R. D. Pechman, and M. G. Oakes. "Intermittent Open Mouth Locking in a Persian Cat." Veterinary and Comparative Orthopaedics and Traumatology 3, no. 03 (1990): 97–99. http://dx.doi.org/10.1055/s-0038-1633236.
Intermittent open mouth locking occurred in a Persian cat as the result of impingement of the left coronoid process of the mandible on the ipsilateral zygomatic arch. The condition was treated successfully by partial zygomatic arch ostectomy.
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Orescanin, Mara M., Liliana Velasquez Montoya, John Plant, Cynthia Williamson, and Collin Brennan. "MORPHODYNAMICS AT THE MOUTH OF A BAR-BUILT ESTUARY: CARMEL RIVER, CA, USA." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 43. http://dx.doi.org/10.9753/icce.v37.sediment.43.
Bar-built estuaries (BBEs), also known as Intermittently Closed Estuaries (ICEs), are common to coastal climates with a strong seasonal precipitation pattern and waves including the US West Coast, Australia, South Africa, and Western Europe (McSweeney et al, 2017). In California, USA, these BBEs typically go through seasonal morphological transitions from a closed state to open state as precipitation increases during the winter months. However, timing of these events is challenging owing to variable behavior for given environmental forcing conditions, and as a result often lead to intermittent flooding of the surrounding areas that is difficult to predict (Behrens et al., 2013; Orescanin and Scooler, 2018). This study uses a compilation of observations using in-situ moorings, topographic beach surveys, and remote sensing from unmanned aerial systems (UAS) to assess rates of morphological change at the Carmel River, CA, USA.
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Rollo, Ian, George Homewood, Clyde Williams, James Carter, and Vicky L. Goosey-Tolfrey. "The Influence of Carbohydrate Mouth Rinse on Self-Selected Intermittent Running Performance." International Journal of Sport Nutrition and Exercise Metabolism 25, no. 6 (December 2015): 550–58. http://dx.doi.org/10.1123/ijsnem.2015-0001.
This study investigated the influence of mouth rinsing a carbohydrate solution on self-selected intermittent variable-speed running performance. Eleven male amateur soccer players completed a modified version of the Loughborough Intermittent Shuttle Test (LIST) on 2 occasions separated by 1 wk. The modified LIST allowed the self-selection of running speeds during Block 6 of the protocol (75–90 min). Players rinsed and expectorated 25 ml of noncaloric placebo (PLA) or 10% maltodextrin solution (CHO) for 10 s, routinely during Block 6 of the LIST. Self-selected speeds during the walk and cruise phases of the LIST were similar between trials. Jogging speed was significantly faster during the CHO (11.3 ± 0.7 km·h−1) than during the PLA trial (10.5 ± 1.3 km · h−1) (p = .010); 15-m sprint speeds were not different between trials (PLA: 2.69 ± 0.18 s: CHO: 2.65 ± 0.13 s) (F(2, 10), p = .157), but significant benefits were observed for sprint distance covered (p = .024). The threshold for the smallest worthwhile change in sprint performance was set at 0.2 s. Inferential statistical analysis showed the chance that CHO mouth rinse was beneficial, negligible, or detrimental to repeated sprint performance was 86%, 10%, and 4%, respectively. In conclusion, mouth rinsing and expectorating a 10% maltodextrin solution was associated with a significant increase in self-selected jogging speed. Repeated 15-m sprint performance was also 86% likely to benefit from routinely mouth rinsing a carbohydrate solution in comparison with a taste-matched placebo.
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Seeman, Kristyn, and Jamie Caso. "Clinical Issues — July 2024." AORN Journal 120, no. 1 (June 25, 2024): 50–55. http://dx.doi.org/10.1002/aorn.14168.
THIS MONTH Cleaning surgical instruments after use in a procedure involving chemotherapeutic medications Key words: deactivation, decontamination, cleaning, disinfection, chemotherapeutic medication. Paper count sheets sterilized inside instrument sets Key words: count sheets, instrument sets, printer ink, toner, toxicity. Off‐label use of dental devices during direct laryngoscopy Key words: mouth guard, dental injury, direct laryngoscopy, anesthesia, intubation. Using intermittent pneumatic compression devices on patients in lithotomy position Key words: mechanical compression devices, compartment syndrome, lithotomy, venous thromboembolism, thromboprophylaxis.
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Bach, John R., Augusta S. Alba, George Bohatiuk, Lou Saporito, and Mathew Lee. "Mouth Intermittent Positive Pressure Ventilation in the Management of Postpolio Respiratory Insufficiency." Chest 91, no. 6 (June 1987): 859–64. http://dx.doi.org/10.1378/chest.91.6.859.
Ye, Juan, Hong Chen, and Hong-Gang Zhang. "Continuous versus intermittent bolus milk feeding in preterm infants: a meta-analysis." Journal of International Medical Research 48, no. 9 (September 2020): 030006052095098. http://dx.doi.org/10.1177/0300060520950981.
Objectives To analyze the evidence comparing the benefits and risks of continuous versus intermittent milk feeding in low birth weight (LBW) infants. Methods Three electronic databases were searched and screened to identify randomized controlled trials of continuous and intermittent milk feeding of LBW infants up to October 2016. Results Eight trials were included in this meta-analysis. Continuous feeding had no effect on days to full feeds and time to regain birth weight. There were no significant differences in the number of apneas, invasive ventilation, changes in body length, occipitofrontal circumference, skinfold thickness, and total protein, and in the number of stools between the two feeding strategies. Continuous feeding was associated with higher gastric residual volume, noninvasive ventilation, weight gain, increase in bilirubin, and longer nil by mouth. There were no significant differences in adverse events and confounders between the two feeding strategies. Conclusions Continuous milk feeding was superior to intermittent feeding in LBW infants in terms of weight gain. However, continuous feeding was also associated with increased nil by mouth duration, increased bilirubin, increased noninvasive support, and increased gastric residuals. Continuous feeding thus confers advantages in terms of weight gain, but also has disadvantages compared with bolus feeding.
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Paravicini, D., U. Hartenauer, and P. Lawin. "Ventilation in Emergency Situations and During Transport." Journal of the World Association for Emergency and Disaster Medicine 3, no. 1 (1987): 33–36. http://dx.doi.org/10.1017/s1049023x00028685.
In acute respiratory failure, an immediate restoration of respiratory functions is imperative. Depending upon the available equipment and the qualifications of the physician and nursing staff, the most suitable ventilation procedure should be selected. In every case, accurate ventilation is accomplished by Intermittent Positive Pressure Ventilation (IPPV). If emergency equipment is not available, the simplest method of achieving this is mouth-to-mouth or mouth-to-nose breathing. The efficacy of this method is limited by the low FiO2 (about 17%) and by the physical condition of the first aider; after 30 minutes of resuscitation, even an experienced and well conditioned emergency rescuer will be exhausted.
Dissertations / Theses on the topic "Intermittent mouth":
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Tomko, Patrick Michael. "Carbohydrate Mouth Rinsing Duration Impact on Fatigue and Recovery from Repeated Sprint Exercise." Bowling Green State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1491336901621137.
Meslard, Florian. "Apports sableux par les fleuves côtiers méditerranéens et aléa de submersion marine (ASPLEC)." Electronic Thesis or Diss., Perpignan, 2023. http://www.theses.fr/2023PERP0053.
Obtenir des estimations précises des bilans sédimentaires sur le continuum terre-mer et comprendre comment ces bilans affectent la dynamique des littoraux est devenu un enjeu crucial dans le contexte actuel de montée du niveau marin et de recul du trait de côte. Les fleuves côtiers méditerranéens, du fait d’un caractère torrentiel lié à des événements météorologiques intenses, sont caractérisés par des épisodes de crues brefs mais violents durant lesquels la majorité du flux d’eau et de sédiments est apportée à la zone côtière en quelques jours. Ce mode de fonctionnement épisodique impacte également leurs embouchures qui peuvent se retrouver obstruées par le développement de flèche sableuse et conduire durant la concomitance des évènements de tempête et de crue à de fortes submersions en zone littorale.Cette thèse a pour objectif de mieux comprendre le fonctionnement de ces embouchures intermittentes et leurs interactions avec les apports en sédiments des fleuves qui y sont associés selon un continuum terre-mer. Une approche spatio-temporelle multi-échelles (terre-mer) couplant des données d’observations morphologiques, hydro-météorologiques et de suivi du transport sédimentaire a été appliquée sur le fleuve Têt, un exemple de fleuve côtier méditerranéen. Les résultats ont permis de 1) mieux comprendre le fonctionnement de ce système d’embouchure intermittente régie par des processus auto-allocycliques et anthropiques, 2) améliorer les estimations de flux de matières en suspension, apporter les premières estimations de flux de sable en suspension et à proximité du fond ainsi que de comprendre le rôle de la morphologie sur leur transfert vers la zone côtière et 3) améliorer la compréhension des événements concomitants de tempête et de crue sur la dynamique de réponsemorphologique et du transport sédimentaire associé Obtaining accurate estimates of sediment budgets on the land-sea continuum and understanding how these budgets affect coastal dynamics has become a crucial issue in the current context of rising sea levels and retreating coastlines. The torrential nature of mediterranean coastal rivers, linked to intense meteorological events, is characterized by brief but violent flooding episodes, during which most of the water and sediment discharge is delivered to the coastal zone in a few days. This episodic behavior of operation also has an impact on their river outlet as well, which can become obstructed by the development of sandy spits, leading to heavy flooding in coastal areas during concomitant storm and flood events. The aim of this thesis is to improve our understanding of intermittent river mouths processes, and to assess their interaction with the sediment transport in a land-sea continuum. A multi-scales (land-sea) spatio-temporal approach combining morphological, hydro-meteorological and sediment transport monitoring data was applied to the Têt River, an example of a mediterranean coastal river. The results provided with 1) a better understanding of the mechanisms at this intermittent river mouth system governed by auto-allocyclic and anthropogenic processes, 2) an improved estimates of suspended solids fluxes, provided by the first estimates of suspended and near-bottom sand fluxes, as well as understanding the role of morphology on their transfer to the coastal zone, and 3) an improved understanding of concomitant storm and flood events on the dynamics of the morphological response and the associated sediment transport
Books on the topic "Intermittent mouth":
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Martin, Rosa. Intermittent Fasting for Women Over 60: The Ultimate Guide to a Fasting Lifestyle for Women over 60 with Mouth-Watering Recipes to Accelerate Weight Loss. Lulu.com, 2021.
Martin, Rosa. Intermittent Fasting for Women Over 60: The Ultimate Guide to a Fasting Lifestyle for Women over 60 with Mouth-Watering Recipes to Accelerate Weight Loss. Lulu.com, 2021.
Martin, Rosa. Intermittent Fasting for Women Over 60: The Ultimate Guide to a Fasting Lifestyle for Women over 60 with Mouth-Watering Recipes to Accelerate Weight Loss. Lulu.com, 2021.
Martin, Rosa. Intermittent Fasting for Women Over 60: The Ultimate Guide to a Fasting Lifestyle for Women over 60 with Mouth-Watering Recipes to Accelerate Weight Loss. Lulu.com, 2021.
The tongue is heavily innervated and plays a central role in articulation, swallowing, and tasting. Unilateral weakness is usually well tolerated. Intermittent weakness of the tongue is highly indicative of myasthenia gravis (MG), while progressive weakness and atrophy is typical for amyotrophic lateral sclerosis (ALS). Tongue weakness without atrophy or fasciculations is a sign of upper motor neuron (UMN) or cerebellar involvement. Lingual dysarthria should be differentiated from other types of dysarthria. Tongue tremor is common and may be confused with fasciculation. Inspection of the tongue while resting in the mouth is more telling than a contracted and protruded tongue for the presence of fsciculations. Direct needle examination of the tongue is painful and is rarely needed.
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Smith, Eva. Intermittent Fasting for Women Over 50: The ultimate guide to a fasting lifestyle for women over 50 with Mouth-watering Recipes to Accelerate Weight Loss, Reset your Metabolism. Eva Smith, 2021.
Smith, Eva. Intermittent Fasting for Women Over 50: The Ultimate Guide to a Fasting Lifestyle for Women over 50 with Mouth-Watering Recipes to Accelerate Weight Loss, Reset Your Metabolism. Lulu.com, 2021.
Smith, Eva. Intermittent Fasting for Women Over 50: The Ultimate Guide to a Fasting Lifestyle for Women over 50 with Mouth-Watering Recipes to Accelerate Weight Loss, Reset Your Metabolism. Lulu.com, 2021.
Smith, Eva. Intermittent Fasting for Women Over 50: The Ultimate Guide to a Fasting Lifestyle for Women over 50 with Mouth-Watering Recipes to Accelerate Weight Loss, Reset Your Metabolism. Lulu.com, 2021.
Kemitch, Jillian. Intermittent Fasting for Women Over 50: Quick and Easy Mouth-Watering Recipes for Vegans, Vegetarians and Carnivores, Detox Your Body and Increase Cell Metabolism with Our Week Meal Plan Included. Independently Published, 2020.
Attygalla, Ajith Manjula. "Intermittent Pain and Swelling in the Floor of the Mouth: Sialolithiasis." In Clinicopathological Correlation of Oral Diseases, 685–93. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24408-7_61.
Idrus, Nur Athirah, Al Hafiz Abu Bakar, Mohd Faiz Putra Abd Razak, Norfaezah Mohd Rosli, Ahmad Fikri Mohd Kassim, and Harris Kamal Kamaruddin. "The Effect of Various Carbohydrate Concentrations Mouth Rinsing on Intermittent Running Performance." In Enhancing Health and Sports Performance by Design, 399–411. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3270-2_42.
Ganesan, Kandasamy, and Asha Thomson. "Trigeminal Neuralgia." In Oral and Maxillofacial Surgery for the Clinician, 531–46. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_26.
AbstractNeuralgia can be defined as paroxysmal, intense intermittent pain that is usually confined to specific nerve branches to the head and neck. The trigeminal nerve is responsible for sensory innervation of the scalp, face and mouth, and damage or disease to this nerve may result in sensory loss, pain or both. >85% of cases of Trigeminal Neuralgia are of the classic type known as Classical Trigeminal Neuralgia (CTN), while the remaining cases can be separated to secondary Trigeminal Neuralgia (STN). STN is thought to be initiated by multiple sclerosis or a space-occupying lesion affecting the trigeminal nerve, whereas the leading cause of CTN is known to be compression of the trigeminal nerve in the region of the dorsal root entry zone by a blood vessel. There is no guaranteed cure for the condition of Trigeminal Neuralgia, but there are several treatment options that can give relief. In this chapter, we review the common neuralgias occurring within the oral and maxillofacial region with special emphasis on Trigeminal Neuralgia. We will discuss the historical evolution of treatment including the medical and surgical modalities with the use of current literature and newer developments. It has been highlighted that the first line of treatment for trigeminal neuralgia is still pharmacological treatment, with Carbamazepine and Oxcarbazepine being the first choice. Possible surgical methods of treatment are discussed within this chapter including modalities such as Microvascular Decompression, Gamma Knife Radiosurgery and Peripheral Neurectomy. As an OMF surgeon, it is important to obtain a good clinical history to rule out other pathology including dental focus. Many clinicians involved ranging from primary care dentists and doctors to secondary care (neurologists, Oral Medicine, OMFS, etc.) to deliver the appropriate first course of action, which is the medical management. The management of TN patients should be carried out in a multidisciplinary setting to allow the patients to choose the best-suited option for them. It is also important to set up self-help groups to enable them to share knowledge and information for themselves and their family members for the best possible outcomes.
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Phowthongkum, P., C. Ittiwut, and V. Shotelersuk. "Severe Hyperammonemic Encephalopathy Requiring Dialysis Aggravated by Prolonged Fasting and Intermittent High Fat Load in a Ramadan Fasting Month in a Patient with CPTII Homozygous Mutation." In JIMD Reports, 11–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/8904_2017_74.
Lee, Christine U., and James F. Glockner. "Case 1.15." In Mayo Clinic Body MRI Case Review, edited by Christine U. Lee and James F. Glockner, 29–30. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199915705.003.0015.
39-year-old man with a 6-month history of epigastric and right upper quadrant discomfort with associated intermittent right shoulder pain and nausea. Laboratory tests were unremarkable; specifically, the AFP level was within normal limits. A hepatic mass was seen on CT Axial fat-suppressed FSE T2-weighted (...
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Lee, Christine U., and James F. Glockner. "Case 11.3." In Mayo Clinic Body MRI Case Review, edited by Christine U. Lee and James F. Glockner, 534–35. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199915705.003.0281.
11-year-old girl with a 3-month history of increasing intermittent right lower quadrant pain Coronal oblique FSE T2-weighted images (Figure 11.3.1) demonstrate a markedly enlarged right ovary that contains a prominent cyst (the normal left ovary can be seen along the left superior margin of the right ovary, with multiple small follicles). Sagittal fat-suppressed FSE T2-weighted image (...
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Sperber, Geoffrey H. "Palatogenesis: Closure of the Secondary Palate." In Cleft Lip And Palate, 14–24. Oxford University PressNew York, NY, 2002. http://dx.doi.org/10.1093/oso/9780195139068.003.0002.
Abstract The secondary palate, so called because it forms after the appearance of the primary palate, constitutes both the floor of the nasal cavities and the roof of the mouth. The secondary palate is comprised of the anterior hard and the posterior soft palate and is an essential component of normal respiration, mastication, deglutition, and speech. The very existence of the definitive secondary palate in humans characterizes a major mammalian evolutionary separation of the respiratory from the masticatory functions of the primitive stomodeal (oronasai) chamber of vertebrate antecedents. The transition of the single chamber of the embryonic stomodeum into the divided compartments of the two nasal cavities for respiration and the oral cavity for mastication represents a subdivision of this common chamber found in primitive crossopterygian fish, reptiles, birds, and early mammals. The separation of a continuous respiratory channel (the nostrils) from an intermittently required food-ingestion channel (the mouth) enabled the evolutionary development of leisurely mastication without respiratory interference. This separation occurs only anteriorly since the nasopharynx and oropharynx share a channel posteriorly, which accounts for momentary asphyxiation during swallowing.
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Cohen, Eyal, and Oscar M. Navarro. "18-Month-Old Girl With Intermittent Fevers, 2.27-kg Weight Loss, and Mild Respiratory Distress." In Challenging Cases in Pediatric Diagnosis, 415–18. American Academy of Pediatrics, 2016. http://dx.doi.org/10.1542/9781610020176-part13-ch078.
Beck, Suzanne E. "A 6-month-old with chronic lung disease of infancy, intermittent snoring, and failure to thrive." In Pediatric Sleep Pearls, 160–63. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-323-39277-8.00049-x.
Gopichandran, Vijayaprasad, Lien B. Lai, and Venkat Gopalan. "Protein-Energy Malnutrition." In Clinical Studies in Medical Biochemistry, 255–65. Oxford University PressNew York, NY, 2006. http://dx.doi.org/10.1093/oso/9780195176872.003.0024.
Abstract A 22-month-old male child was seen in a pediatric clinic in the United States (Carvalho et al., 2001). He had been suffering from intermittent skin eczema since 2 weeks of age. After weaning at 13 months of age, he was given cow’s milk, and several episodes of vomiting were observed soon after. Since his parents suspected milk intolerance and were apprehensive about the cow’s milk causing a possible worsening of the eczema, he was immediately switched to a lactose-free diet that was primarily a rice milk beverage.This rice drink was extremely low in protein but (somewhat) adequate in caloric content. Although well educated, the parents mistakenly assumed that the beverage, because of its fortified contents and high cost,was a superior food product for their child even though the container stated that the rice milk beverage was not meant for use as an infant formula. Despite normal growth during infancy, poor weight gain was obvious during the second year, when the child was on a daily intake of 1.5 L of the rice drink, which is equivalent to 3 g protein and 790 calories/day (norm for ages 1–3, 16 g protein and 1300 calories/day). In the weeks before admission, he was irritable, was less active, and displayed an increase in skin lesions.
Conference papers on the topic "Intermittent mouth":
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Ghajar, A. J., L. M. Tam, and S. C. Tam. "A Simple Heat Transfer Correlation for Three Inlet Configurations Using Artificial Neural Network in the Complex Transition Flow Regime." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47109.
Local forced and mixed heat transfer coefficients were measured by Ghajar and Tam (1994) along a stainless steel horizontal circular tube fitted with reentrant, square-edged, and bell-mouth inlets under uniform wall heat flux condition. For the experiments the Reynolds, Prandtl, and Grashof numbers varied from about 280 to 49000, 4 to 158, and 1000 to 2.5×105, respectively. The heat transfer transition regions were established by observing the change in the heat transfer behavior. The data in the transition region were correlated by using the traditional least squares method. The correlation predicted the transitional data with an average absolute deviation of about 8%. However, 30% of the data were predicted with 10 to 20% deviation. The reason is due to the abrupt change in the heat transfer characteristic and its intermittent behavior. Since the value of heat transfer coefficient has a direct impact on the size of the heat exchanger, a more accurate correlation has been developed using the artificial neural network (ANN). A total of 1290 data points (441 for reentrant, 416 for square-edged, and 433 for bell mouth) were used. The accuracy of the new correlation is excellent with the majority of the data points predicted with less than 10% deviation.
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SIMPSON, ALEX, SARAH GIDDINGS, MATTHEW SPYDELL, ROB GRENZEBACK, MADELEINE HARVEY, ADAM YOUNG, WILLIAM O’REILLY, KELSEY KINGSBURY, and TIMU GALLIEN. "MOUTH MORPHODYNAMICS OF AN INTERMITTENTLY CLOSED ESTUARY IN RESPONSE TO STORM EVENTS." In Coastal Sediments 2023. WORLD SCIENTIFIC, 2023. http://dx.doi.org/10.1142/9789811275135_0238.
Katramiz, Elvire, Nesreen Ghaddar, and Kamel Ghali. "Effective Mixed-Mode Ventilation System With Intermittent Personalized Ventilation for Improving Thermal Comfort in an Office Space." In ASME 2020 Heat Transfer Summer Conference collocated with the ASME 2020 Fluids Engineering Division Summer Meeting and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ht2020-8915.
Abstract The mixed-mode ventilation (MMV) system is an energy-friendly ventilation technique that combines natural ventilation (NV) with mechanical air conditioning (AC). It draws in fresh air when the outdoor conditions are favorable or activates otherwise the AC system during occupancy hours. To improve performance of the MMV system, it is proposed to integrate it with an intermittent personalized ventilation (IPV) system. IPV delivers cool clean air intermittently to the occupant and enhances occupant thermal comfort. With the proper ventilation control strategy, IPV can aid MMV by increasing NV mode operational hours, and improve the energy performance of the AC system by relaxing the required macroclimate set point temperature. The aim of this work is to study the IPV+MMV system performance for an office space application in terms of thermal comfort and energy savings through the implementation of an appropriate control strategy. A validated computational fluid dynamics (CFD) model of an office space equipped with IPV is used to assess the thermal fields in the vicinity of an occupant. It is then coupled with a transient bio-heat and comfort models to find the overall thermal comfort levels. Subsequently, a building-performance simulation study is performed using Integrated Environmental Solutions-Virtual Environment (IES-VE) for an office in Beirut, Lebanon for the typical summer month of July. An energy analysis is conducted to predict the savings of the suggested design in comparison to the conventional AC system. Results showed that the use of IPV units and MMV significantly reduced the number of AC operation hours while providing thermal comfort.
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Boissel, J. P., J. C. Peyrieux, J. M. Destors, M. Lievre, and P. Moleur. "PREVENTION OF SYSTEMIC THROMBO-EMBOLISM IN PATIENTS WITH ATHEROSCLEROTIC INTERMITTENT CLAUDICATION." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643461.
Ticlopidine (TI), an anti-aggregating agent which inhibits the ADP-pathway has been tested in patients with intermittent claudication (IC) in 11 randomized clinical trials (RTCs).As expected, a significant reduction of cardio-vascular events (CVE) due to systemic thrombo-embolism was observed in the 2 larger. Reduction in the number of CVE due to systemic thromboembolism in any arterial bed was observed. This prompted us to confirm the hypothesis that TI was beneficial in preventing systemic thrombo-embolism in patients with IC. Four RCTs from the 11 were blindly selected on the basis on pre-set selection criteria : placebo controlled, more than 1 month duration, , less than 5 % lost-to-follow-up (index of quality), parallel groups, proven atherosclerotic disease. Meta-analysis was performed with 5 statistical methods which gave consistent findings : as compared to 311 patients on placebo, the 301 patients on TI have had a 66 % reduction in the number of CVE during the 6 months of follow-up (9.0 % to 3 % , p = 0.002). Walking distance, a secondary objective of meta-analysis, doubled in 42 % of the patients on TI as against 27 % (p = 0.0005).It was concluded that TI 250 mg b.i.d. prevents CVE in patients with atherosclerotic IC.
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Oke, Kehinde, Olumide Bello, and Landon Onyebueke. "Modeling of a Hybrid Energy System Integrated With an Intermittent Power Grid in Developing Countries." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37084.
Electricity in most developing countries is inefficient, erratic and unreliable. Recent research work on grid-connected hybrid system in developing countries have not considered frequent electricity outage hours per month experienced by consumers. Effort is made to address this critical factor and HOMER software was used to model an intermittent power grid integrated with a hybrid energy system. This shortcoming is addressed by assuming generator component in HOMER to run as grid. This is made possible after some modification to fuel content, minimum load capacity ratio and scheduling capacity of the generator. A city in Nigeria was used to demonstrate this approach, but it can be replicated for any location in developing countries where there is frequent electricity outage. Outcome of the model shows that integrating an intermittent power grid with a hybrid energy system offers a competitive cost of energy, reduction in noise pollution and improved use of renewable energy for electricity generation in developing countries.
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Odonkor, Philip, and Kemper Lewis. "Designing Optimal Arbitrage Policies for Distributed Energy Systems in Building Clusters Using Reinforcement Learning." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97190.
Abstract In the wake of increasing proliferation of renewable energy and distributed energy resources (DERs), grid designers and operators alike are faced with several emerging challenges in curbing allocative grid inefficiencies and maintaining operational stability. One such challenge relates to the increased price volatility within real-time electricity markets, a result of the inherent intermittency of renewable energy. With this challenge, however, comes heightened economic interest in exploiting the arbitrage potential of price volatility towards demand-side energy cost savings. To this end, this paper aims to maximize the arbitrage value of electricity through the optimal design of control strategies for DERs. Formulated as an arbitrage maximization problem using design optimization, and solved using reinforcement learning, the proposed approach is applied towards shared DERs within multi-building residential clusters. We demonstrate its feasibility across three unique building cluster demand profiles, observing notable energy cost reductions over baseline values. This highlights a capability for generalized learning across multiple building clusters and the ability to design efficient arbitrage policies towards energy cost minimization. Finally, the approach is shown to be computationally tractable, designing efficient strategies in approximately 5 hours of training over a simulation time horizon of 1 month.
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Kakadjian, Sarkis, Keith Korhonen, Marvin Solomon, Jarrett Kitchen, Amanuel Gebrekirstos, Jesse Risner, and Otman Algadi. "Effective Water Treatment in the Permian and Marcellus Shales to Mitigate Surface Equipment Failures." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210250-ms.
Abstract Chemical and oxidative biocides are designed to sanitize water by reducing aerobic and anaerobic bacterial populations in the fresh, brackish and reclaimed source waters. These biocides are used extensively in high-rate fracture stimulations to reduce formation damage, chemical degradation, biogenic H2S and microbial induced corrosion (MIC). Oxidative biocides work by removing electrons from the cell wall of aerobic and anaerobic bacteria. The same electron transfer mechanism can be detrimental to surface equipment. This study presents the impact of several oxidative biocides on the corrosion rate and pitting of different frac iron alloys and how those biocides effect the mechanical integrity of elastomer seals. It also presents different remediation methods to mitigate their oxidative effects. The oxidative biocides tested were Chlorine, Chlorine Dioxide and a Peracidic Acid blend. The corrosion rate of the iron alloys coupons was measured by weight loss analysis. This method can measure the rate of corrosion in pounds per square foot at time and was used to compare the impact of different residual oxidizers on the corrosion rate of the ground iron. Structural changes to the elastomers were detected visually. The results of the study showed that the corrosion rate varied depending on the alloy/residual oxidative biocide combination. Usually, Peracidic Acid blend or Chlorine had the highest corrosion rates across all alloys tested; depending on the oxidative biocide/alloy combination, the corrosion rate could vary by a factor of 2X over the nine-week timeframe. Elastomer testing over 6 weeks showed variability in the types of structural changes depending on the concentration and oxidative biocide tested. The lab and field testing included onsite monitoring of the corrosion rate, oxidation reduction potential (ORP), oxygen in solution and determination of the Langelier Saturation Index (LSI). The methodology has been effective in predicting iron failures related to the composition of the water and/or presence of oxidizers. Chemical solutions implemented to mitigate the surface iron failures included use of intermittent blends of water-soluble quaternary amines and surfactants. Since these remediation attempts have started, the replacement cost of frac iron has decreased from over 550K US$ per month, per frac spread to none, over a 3-month period.
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Fortunato, Pedro Neves, Hilton Mariano da Silva Júnior, Rosana Carandina Maffeis, and Caroline Moraes Tapajós Bolzani. "Creutzfeldt-Jakob disease Heidenhain variant: case report with progressive cognitive decline recorded by videos." In XIII Congresso Paulista de Neurologia. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/1516-3180.282.
Context: Creutzfeldt-Jakob disease (CJD) is a rapidly progressive neurodegenerative disease. Heidenhain’s variant has isolated visual symptoms that persist even without any cognitive decline for a few weeks. Objective: To report a case of the Heidenhain variant of the CJD with evolution documented. Methods: Case report:A 67-year-old woman was admitted to the emergency room with a report of “seizures and dementia for 1 month”. It all started in August 2020 with a decrease in visual acuity. The son started to record the evolution of the disease in vídeos on his mobile phone. It got worse, with an inability to reach objects and optical apraxia,psychomotor slowing, abnormal repetition of acts and impairment of judgment. MRI of the brain (normal) and EEG was performed, with diffuse slowing of the base activity. It evolved with intermittent myoclonus and abulia. Extensive investigation for encephalitis: normal. Treatment with acyclovir and pulsetherapy with methylprednisolone were performed. Results: new brain MRI: restricted area following the diffusion and T2 / FLAIR hypersignal exclusively cortical involving both posterior hemispheres. Also new EEG: generalized periodic discharges. The 14-3-3 protein was detected in her CSF.The patient died 4 months after the onset of the condition due to infectious complications. Conclusions: The Heidenhain variant of CJD should be considered a differential diagnosis in all patients who have isolated visual complaints, especially if associated with cognitive complaints. The video recording of the patient allows a detailed analysis of the clinical picture and becomes an important diagnostic complementation tool.
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Baumgardner, Marc E., and Daniel B. Olsen. "Poison Build-up and Performance Degradation of an Oxidation Catalyst in 2-Stroke Natural Gas Engine Exhaust." In ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3550.
Due to current and future exhaust emissions regulations, oxidation catalysts are increasingly being added to the exhaust streams of large-bore, 2-stroke, natural gas engines. Such catalysts have been found to have a limited operational lifetime, primarily due to chemical (i.e. catalyst poisoning) and mechanical fouling resulting from the carry-over of lubrication oil from the cylinders. It is critical for users and catalyst developers to understand the nature and rate of catalyst deactivation under these circumstances. This study examines the degradation of an exhaust oxidation catalyst on a large-bore, 2-stroke, lean-burn, natural gas field engine over the course of 2 years. Specifically this work examines the process by which the catalyst was aged and tested and presents a timeline of catalyst degradation under commercially relevant circumstances. The catalyst was aged in the field for 2 month intervals in the exhaust slipstream of a GMVH-12 engine and intermittently brought back to the Colorado State Engines and Energy Conversion Laboratory for both engine testing and catalyst surface analysis. Engine testing consisted of measuring catalyst reduction efficiency as a function of temperature as well as the determination of the light-off temperature for several exhaust components. The catalyst surface was analyzed via SEM/EDS and XPS techniques to examine the location and rate of poison deposition. After 2 years on-line the catalyst light-off temperature had increased ∼55°F (31°C) and ∼34 wt% poisons (S, P, Zn) were built up on the catalyst surface, both of which represent significant catalyst deactivation.
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Slorach, P., I. Crossland, A. Silva, and N. Money. "Renewables for Subsea Power – Transformational Low Carbon Subsea Power Project." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216124-ms.
Abstract Momentum is building within the global offshore oil and gas industry to reduce carbon emissions in line with net zero targets and industry agreements around decarbonization such as the North Sea Transition Deal in the UK. As part of this drive to reduce emissions and to decrease reliance on traditional sources of power, integration of renewables within offshore operations is increasingly being seen as a viable solution. In order to encourage wider adoption of renewables within these operations, successful projects must be demonstrated to show the viability of renewables in this environment, as well as the capability of overcoming the intermittency challenges associated with renewables. The Renewables for Subsea Power (RSP) project, launched in 2020, is said to be a first-of-a-kind commercial scale demonstrator project which provides a fully integrated offshore power and over-the-horizon communications solution through the integration of a wave energy device (Mocean Energy) and a subsea battery energy storage system (Verlume). The project demonstrates power export to the subsea energy management system, powering both subsea controls equipment (Baker Hughes) and underwater vehicles (Transmark Subsea) through a remote wireless communication link to the subsea equipment. In this paper, the focus will be on the development and progress within the RSP project since the previous paper SPE-210910-MS (Crossland et al., 2022). Discussion will include observations from Phase 2 onshore commissioning, as well as the offshore demonstration which began in February 2023 in the UK North Sea and has been operational over a four-month period. Beyond innovation in the developed hardware, the project provides a case study of a wider industry collaborative approach, addressing the need to explore ways of achieving a net zero future and work towards enhanced energy security, including for offshore operations. The project is relevant to numerous remote power provision applications across the ever-growing Blue Economy.
Reports on the topic "Intermittent mouth":
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Bain, Rachel, Richard Styles, and Jared Lopes. Ship-induced waves at Tybee Island, Georgia. Engineer Research and Development Center (U.S.), December 2022. http://dx.doi.org/10.21079/11681/46140.
Commercial vessels transiting the Savannah entrance channel intermittently generate large wake events at Tybee Island, Georgia, creating a potential hazard for beachgoers. However, not all commercial vessels generate large wakes, and the relationship between vessel dimensions, operating conditions, wake height, and drawdown magnitude is unclear. This study evaluates bathymetric data, high-frequency wave and vessel wake measurements, and broadcast vessel identification over a 4-month period with the goal of providing a quantitative characterization of vessel wake conditions at Tybee Island. Data from 1,386 cargo vessel passages and 202 tanker passages indicate that vessel dimensions (length and beam) are positively correlated with drawdown magnitude and secondary wake height, although large vessels do not consistently generate large wakes. Container ships, which tended to travel faster than tankers, corresponded to the largest wakes in the dataset. A further hypothesis is that tidally modulated energy dissipation may favor smaller vessel wake uprush at low tide and larger uprush at high tide, but this idea cannot be confirmed without additional measurements to quantify nonlinear wave propagation on the beach face. Based on the collected data, the study concludes with four recommendations for reducing risk to beachgoers.
