Добірка наукової літератури з теми "Durability recovery"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Durability recovery".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Статті в журналах з теми "Durability recovery"
1
Barbakadze, Khatuna, Witold Brostow, Nathalie Hnatchuk, Giorgi Lekishvili, Badri Arziani, Krzysztof Zagórski, and Nodar Lekishvili. "Antibiocorrosive Hybrid Materials with High Durability." Chemistry & Chemical Technology 15, no. 4 (November 25, 2021): 500–511. http://dx.doi.org/10.23939/chcht15.04.500.
Повний текст джерелаАнотація:
We have developed novel antibiocorrosive multifunctional hybrid materials based on functionalizedperfluoroalkylmethacrylate copolymerswith epoxy groups in main chainsand selected biologically active compounds.The hybrids are transparent, showgood adhesion to various surfaces (plastic, wood),high viscoelastic recovery in scratch testing,low wear rates and glass transitions above 323 K. No phase separation is seen in scanning electron micrography. Enhanced mechanical strength and good abrasion resistance are advantages for uses of our protective and antibiocorrosive coatings in various applications including protection of cultural heritage.
2
Gupta, Shravan Kumar, Kamal Kanti Goswami, and Abhijit Majumdar. "Optimization of durability of Persian hand-knotted wool carpets by using desirability functions." Textile Research Journal 88, no. 1 (November 13, 2016): 89–98. http://dx.doi.org/10.1177/0040517516676056.
Повний текст джерелаАнотація:
Lower abrasion loss and compression, as well as higher compression recovery, are desirable for obtaining maximum carpet durability. Hand-made carpet manufacturers need to satisfy consumers on these diverse durability requirements. Therefore, it is necessary to optimize the carpet durability by considering several objectives simultaneously. In this investigation, carpet durability has been optimized by considering abrasion loss, compression and compression recovery simultaneously. The desirability function approach has been used to combine multiple objectives into a single objective. Knot density, pile height, number of plies in the pile yarn and pile yarn twist have been considered as the four independent variables. The optimum desirability of carpet durability was found to be 0.8. The validation sample also showed good agreement (error < 5%) with the optimized values of carpet durability attributes.
3
Yefanov, S. A., A. V. Kotin, and V. Yu Fedchenko. "Recovery of spindle units by polymer composites." Traktory i sel hozmashiny 79, no. 10 (October 15, 2012): 50–52. http://dx.doi.org/10.17816/0321-4443-66020.
Повний текст джерела
4
Ko, Jun-Bok, Young-Hoon Lim, and Dong-Cheol Lee. "Analysis of Durability of Torsion Beam Axle Using Modal Stress Recovery Method." Transactions of the Korean Society of Mechanical Engineers A 34, no. 10 (October 1, 2010): 1339–44. http://dx.doi.org/10.3795/ksme-a.2010.34.10.1339.
Повний текст джерела
5
Pearson, M., and R. W. Anderson. "Reliability and durability from large heat recovery steam generators." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 213, no. 3 (May 1999): 151–68. http://dx.doi.org/10.1243/0957650991537518.
Повний текст джерела
6
Magalhaes, Arlino, Jose Maria Monteiro, and Angelo Brayner. "Main Memory Database Recovery." ACM Computing Surveys 54, no. 2 (April 2021): 1–36. http://dx.doi.org/10.1145/3442197.
Повний текст джерелаАнотація:
Many of today’s applications need massive real-time data processing. In-memory database systems have become a good alternative for these requirements. These systems maintain the primary copy of the database in the main memory to achieve high throughput rates and low latency. However, a database in RAM is more vulnerable to failures than in traditional disk-oriented databases because of the memory volatility. DBMSs implement recovery activities (logging, checkpoint, and restart) for recovery proposes. Although the recovery component looks similar in disk- and memory-oriented systems, these systems differ dramatically in the way they implement their architectural components, such as data storage, indexing, concurrency control, query processing, durability, and recovery. This survey aims to provide a thorough review of in-memory database recovery techniques. To achieve this goal, we reviewed the main concepts of database recovery and architectural choices to implement an in-memory database system. Only then, we present the techniques to recover in-memory databases and discuss the recovery strategies of a representative sample of modern in-memory databases.
7
Ragni, Margaret V., Lynn M. Malec, and Janna M. Journeycake. "Durability of ITI Utilizing Rfviiifc." Blood 128, no. 22 (December 2, 2016): 3793. http://dx.doi.org/10.1182/blood.v128.22.3793.3793.
Повний текст джерелаАнотація:
Introduction: The eradication of inhibitors using immune tolerance induction (ITI) remains the mainstay of therapy in patients with severe hemophilia A who develop inhibitors. The long-acting recombinant factor VIII Fc fusion protein, rFVIIIFc (Eloctate™), which is safe and effective in the prevention and treatment of bleeding events, may promote tolerance to FVIII as shown in preclinical animal models and an inhibitor prone child, as Fc suppresses immunoregulatory Tcells to proteins to which Fc is attached. We therefore previously hypothesized rFVIIIFc would provide effective ITI, specifically shortening and simplifying ITI, and have previously described successful inhibitor eradication in three patients. Long-term follow-up data after successful ITI in patients with severe hemophilia remains limited. In the International Immune Tolerance Induction study, at 1-year follow-up, 6 of 66 subjects who had achieved tolerance demonstrated evidence of relapse at a median of 9.5 months. Of these 6 subjects, 1 had a measurable inhibitor titer and 5 had reduced FVIII recovery. We aim to provide follow-up data on our cohort of patients who had successful inhibitor eradication utilizing rFVIIIFc for ITI. Methods: Immune tolerance induction was initiated in three patients with severe hemophilia A and anti-VIII >5 B.U., in two as initial ITI (Pt. 1, 3), and one as salvage (Pt. 2) after failing to achieve ITI with standard rFVIII due to poor compliance. Follow-up was scheduled every 6-8 weeks, with planned determination of FVIII half-life once the anti-FVIII fell to <0.6 B.U. Tolerance was a priori defined as achieving anti-FVIII <0.6 B.U., FVIII recovery of at least 60%, and half-life (t½) >6 hours. Once a t½ >6 hours was documented, incremental reduction to rFVIIIFc occurred. Patients continued to be followed by their local HTC as per standard of care. Results: ITI was initiated with rFVIIIFc at a dose of 100-200 IU/kg rFVIIIFc every other day or three times weekly per MD discretion. The time to initial anti-FVIII <0.6 B.U. was 4-12 weeks. Patient 1 and 2 were able to achieve tolerance, with a FVIII recovery of at least 60%, and half-life (t½) >6 hours, at weeks 18 and 17, respectively, after initiation of ITI. Patient 3 has improved but is not yet fully tolerized, as evidenced by 57% recovery and a t½ of approximately 7 hours. Anti-VIII inhibitor titers remain negative at 15, 16 and 15 months, from the initiation of ITI in patients 1, 2, and 3 respectively. Patients 1 and 2 have been able to decrease their post ITI prophylaxis dosing regimen to 80 IU/kg and 65 IU/kg three times a week while maintaining a FVIII trough of >1%. No patients were maintained on bypassing prophylaxis during ITI and no patients have experienced hemarthroses or other major bleeding event since the initiation of ITI. Discussion: Immune tolerance induction was successful in three children with inhibitors using rFVIIIFc, including a child previously failing rFVIII ITI. The time to anti-FVIII=0 was 4-12 weeks, significantly shorter than with current rFVIII ITI. At a mean duration of follow up of 15.3 months, all patients achieved an anti-VIII inhibitor titer of 0 B.U. Repeat pharmacokinetics studies will be available at planned subsequent follow-up visit. To date, these data indicate that rFVIIIFc safely and effectively induced immune tolerance to FVIII in three children with inhibitors, and has provided durable and continuing immune tolerance to FVIII. Whether rFVIIIFc ITI will be successful and durable in a larger cohort of children with severe hemophilia A will require prospective studies. A prospective observational study of rFVIIIFc ITI pre- and post-ITI T cell responses in children with hemophilia and inhibitors, the Hemophilia Inhibitor Response to Eloctate (HIRE) Study, has begun recruitment. Disclosures Ragni: SPARK: Research Funding; Shire: Consultancy; Novo Nordisk: Research Funding; Genentech: Research Funding; CSL Behring: Research Funding; Biomarin: Consultancy; Biogen: Consultancy, Research Funding; Baxalta: Research Funding; Alnylam Pharmaceuticals: Consultancy, Research Funding; Tacere Benitec: Consultancy; Vascular Medicine Institute: Research Funding; OPKO: Research Funding. Malec:Vascular Medicine Institute: Research Funding; Biogen: Research Funding; Baxalta: Research Funding; Biogen: Consultancy. Journeycake:CSL: Consultancy; Biogen: Consultancy; Baxalta/Shire: Consultancy.
8
Alege, Femi P., Gilbert J. Miito, Lisa W. DeVetter, Haiying Tao, and Pius M. Ndegwa. "Effects of Blending Dairy Manure Compost and Canola Meal on Pellet Quality and Nutrient Concentrations." Transactions of the ASABE 64, no. 2 (2021): 353–63. http://dx.doi.org/10.13031/trans.14057.
Повний текст джерелаАнотація:
HighlightsNutrient contents and unit density were positively correlated with canola meal blending ratio.Pellet durability, bulk density, and length were inversely correlated with canola meal blending ratio.Pellets produced from compost and 20% canola meal blend were 67% denser than the compost.Pelleting dairy manure and canola meal blends improved nutrient transport and storage.Abstract. The potential for adverse environmental impacts from excess manure nutrients generated in regions with large concentrations of animal production is enormous and real. The goal of this research was to investigate ways of alleviating such threats via pelleting and blending of excess dairy manure nutrients to enhance their value, utilization, transport, and storage. In this study, composted dairy manure was blended with canola meal in ratios ranging from 0% to 40% canola meal prior to pelleting. The pre-pelleting moisture content was set at 21% (wet basis) and an 8 mm diameter die was selected for pelleting, based on previous studies. The effect of canola blending ratio was evaluated against moisture content, unit and bulk densities, recovery, durability, and nutrient concentrations (total nitrogen and phosphate) of the resulting pellets. Results indicated positive correlations between the blending ratio and pellet recovery (r = 0.83), moisture content (r = 0.75), unit density (r = 0.74), total nitrogen (r = 0.99), and phosphate (r = 0.87). In contrast, inverse correlations were observed between the blending ratio and pellet durability (r = -0.93), bulk density (r = -0.99), and length (r = -0.76). No significant differences were observed between the blending ratio and all these parameters for blending ratios of 0% to 15%. However, data indicated significant differences between pellet durability and recovery at blending ratios above 20%. Overall, this study showed that blending dairy manure with up to 15% canola meal significantly (p < 001) improved the nutrient value, storage, and transport. Keywords: Blending, Dairy manure, Durability, Environmental pollution, Pelleting.
9
Makhunton, Suphalak, Songkoon Chantachon, and Phanat Phothibat. "Integration of the Local Wisdom of Natural-Dyed Mud-Treated Silk in Thailand for Creative Economy." Advanced Materials Research 860-863 (December 2013): 2695–99. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.2695.
Повний текст джерелаАнотація:
The present research compared minerals contained in mud from different sites. These were analyzed by atomic absorption spectroscopy: AAS. It found the highest quantity is iron, zinc in second, lead in third, copper in fourth. The study results show that silk threads with and without mud treatment were not so different in color durability towards light, color durability towards scrubbing, and color durability towards washing. We also found that crease recovery capacity of mud-treated silk cloth was better than that of silk cloth without mud treatment. Hence, the mud treated silk is more suitable for the development of Thai garment.
10
Kim, Hyunjin, Ji Eun Song, and Hye Rim Kim. "Comparative study on the physical entrapment of soy and mushroom proteins on the durability of bacterial cellulose bio‐leather." Cellulose 28, no. 5 (February 7, 2021): 3183–200. http://dx.doi.org/10.1007/s10570-021-03705-0.
Повний текст джерелаАнотація:
AbstractThis study aimed to develop eco-friendly bacterial cellulose (BC) bio-leather with improved durability using plant-based proteins, namely soy protein isolate (SPI) and mushroom protein (MP), which were physically entrapped inside the BC, respectively. The amounts of the plant-based proteins were determined by evaluating the tensile strength of BC bio-leather, and were found to be 20 wt% and 50 wt% of BC for SPI and MP, respectively. The enhanced properties of mechanical strength and durability of BC bio-leather were measured in terms of changes in water resistance, tensile strength, flexibility, crease recovery, and dimensional stability. The durability of BC was improved after the entrapment of proteins, and moreover, the durability of BC entrapped with plant-based proteins was further improved by the addition of glycerol. Especially, BC entrapped with MP and glycerol had better water resistance, tensile strength, flexibility, and crease recovery compared to cowhide leather. The chemical and physical structures of BC bio-leathers were studied using Fourier transform-infrared spectroscopy, X-ray diffraction, field-emission scanning electron microscopy, and energy dispersive X-ray spectroscopy analyses. From the results, it was confirmed that BC entrapped with MP and glycerol could be a suitable leather substitute.
Дисертації з теми "Durability recovery"
1
Nguyen, Duc Thanh. "Study on conservation of archaeological waterlogged wood in Vietnam." Kyoto University, 2018. http://hdl.handle.net/2433/232490.
Повний текст джерелаАнотація:
Kyoto University (京都大学)0048
新制・課程博士
博士(農学)
甲第21277号
農博第2293号
新制||農||1062(附属図書館)
学位論文||H30||N5141(農学部図書室)
京都大学大学院農学研究科森林科学専攻
(主査)教授 杉山 淳司, 教授 吉村 剛, 教授 渡邊 隆司, 教授 高妻 洋成
学位規則第4条第1項該当
2
Jofre-Reche, José Antonio. "Optimization of the surface properties of polydimethylsiloxane by plasma treatment for adhesion improvement and durability to acrylic adhesive for medical applications." Doctoral thesis, Universidad de Alicante, 2014. http://hdl.handle.net/10045/86114.
Повний текст джерелаАнотація:
El polidimetilsiloxano (PDMS) es un polímero amorfo en base inorgánica con grupos pendientes que le imparten hidrofobicidad que es ampliamente utilidado en aplicaciones biomédicas. Debido a la baja energía superficial del PDMS, su adhesión es pobre. En algunas aplicaciones biomédicas (catéteres, prótesis) se requiere adhesión para lo cual se modifica superficialmente. Los plasmas generados en condiciones de no-equilibrio, también llamados plasmas fríos, han sido utilizados en el tratamiento superficial de PDMS para aumentar su energía superficial, pero las modificaciones producidas son poco estables, produciéndose una rápida recuperación de la hidrofobicidad (hydrophobic recovery). La estabilidad de las modificaciones superficiales del PDMS depende de las características del plasma utilizado para su tratamiento, por lo que el objetivo de la tesis doctoral se centra en la utilización de diferentes tipos de plasmas fríos para modificar las propiedades superficiales de PDMS de manera que simultáneamente se aumente su estabilidad y se mejore su adhesión. Otro aspecto innovador en el estudio consiste en la discriminación y optimización de las condiciones de tratamiento con plasma utilizando un diseño estadístico de experimentos, lo que he permitido modelar el efecto del tratamiento con plasma de superficies de PDMS empleando los ángulos de contacto y la química superficial como variables respuesta. Se ha estudiado el efecto de los diferentes tipos de plasma en la hidrofobicidad y la energía superficial del PDMS mediante medidas de ángulo de contacto. Las modificaciones en la química superficial han sido evaluadas usando espectroscopia infrarroja en modo de reflectancia total atenuada (FTIR-ATR) y espectroscopia fotoelectrónica de rayos X (XPS), mientras que los cambios en la morfología y nanorugosidad superficial se monitorizaron usando microscopía electrónica de barrido (SEM) y microscopía de fuerza atómica (AFM). Las propiedades de adhesión del PDMS se evaluaron mediante ensayos de adhesión en pelado en T y de cizalla a solape simple, utilizando un adhesivo sensible a la presión (PSA) en base acrílica para uso médico. Estas propiedades fueron además monitorizadas en función del tiempo tras el tratamiento con plasma para determinar la estabilidad de las modificaciones producidas. En general, el tratamiento superficial de PDMS con plasma produce oxidación de las cadenas de polisiloxano por sustitución de los grupos metilo por grupos hidroxilo, lo que aumenta la polaridad y la energía superficial, incrementando las propiedades de adhesión. Se produce el entrecruzamiento de cadenas mediante condensación de los grupos hidroxilo, formando una delgada capa superficial con estructura de sílice. Cuando las características del plasma son demasiado agresivas aparecen grietas superficiales favoreciendo la recuperación hidrofóbica por difusión de especies apolares desde el seno del PDMS hacia la superficie, así como por la reorientación de los nuevos grupos polares en la superficie hacia el seno del material. Este fenómeno se minimiza optimizando las condiciones de tratamiento empelando un diseño estadístico de experimentos. En sistemas de generación de plasma a baja presión, tratamientos con baja potencia durante largos tiempos mejoran la funcionalización de la superficie del PDMS, y el uso de mezclas de argón y oxígeno como gas plasmógeno resulta más efectivo que el empleo de los gases puros; la presión de trabajo tiene un papel fundamental en la estabilidad de las modificaciones producidas. En sistemas de antorcha de plasma atmosférico el tiempo de tratamiento y la distancia de la boquilla a la superficie son los parámetros más relevantes en la oxidación superficial del PDMS, mientras que en sistemas de plasma atmosférico de doble barrera dieléctrica, el voltaje, el tiempo de tratamiento y la distancia entre electrodos son las variables críticas en la efectividad del tratamiento superficial. Finalmente, la deposición de monómeros mediante antorcha de plasma permite generar nanoestructuras superficiales en el PDMS aportándole características de superhidrofobicidad.
3
Youssef, Nicolas. "Mise en place d’une brique géopolymère pour la construction durable : études géotechnique, environnementale et économique." Thesis, Ecole centrale de Lille, 2019. http://www.theses.fr/2019ECLI0005.
Повний текст джерелаАнотація:
Après la crise économique en 2008, l’activité de construction en France a connu une croissance très rapide. La hausse de la demande des matériaux de construction était accompagnée d’une augmentation des quantités de déchets de construction et de CO2 émise. En 2018, l’émission de CO2 liée aux activités humaines a atteint un niveau historique mondial de 37.1 milliards de tonnes. Ceci encourage le développement des matériaux de construction qui répondent aux besoins mutants de la société d’aujourd’hui et de demain. Les géopolymères, préparés par activation alcaline, présentent une opportunité pour produire des nouveaux matériaux plus performants et respectueux de l’environnement dans le secteur de la construction. D’autre part, l’industrialisation et la robotisation font apparition dans le secteur de la construction, avec des nombreux avantages tels que l’augmentation de la productivité, la réduction des gaspillages, du coût et de la pénibilité du travail, ainsi que l’amélioration de la qualité et la sécurité.Ce travail de recherche est mené pour répondre à ces défis et verrous scientifiques. Il est réparti selon trois axes : l’élaboration de nouvelles formulations de briques géopolymères, l’intégration des matériaux géopolymères dans le processus d’industrialisation et de robotisation de la construction, et enfin l’évaluation de l’impact environnemental et économique du nouveau système de fabrication automatiséAfter the economic crisis in 2008, construction activity in France grew rapidly. The increase in demand for building materials was accompanied by an increase in the quantities of construction waste and emitted CO2. In 2018, CO2 emissions from human activities reached a world historic level of 37.1 billion tons. This encourages the development of building materials that meet the changing needs of today's and tomorrow's society. Geopolymers, prepared by alkaline activation, present an opportunity to produce new, more efficient and environment-friendly materials in the construction sector. On the other hand, industrialization and robotization are emerging in the construction sector, with many benefits such as increased productivity, reduced waste, cost and arduous work, as well as improved quality and safety.This doctoral thesis is being conducted to address these scientific challenges and issues. These are divided into three research directions: the development of new geopolymer brick formulations, the integration of geopolymer materials into the industrialization and robotization of construction processes, and finally the environmental and economic assessment of the new automated manufacturing system
4
Pradi, Bonilha Camila. "Rebuilding less vulnerable communities : the case of Holy Cross." Thèse, 2010. http://hdl.handle.net/1866/3912.
Повний текст джерелаАнотація:
La résilience est la capacité à s’adapter aux menaces et à atténuer ou éviter un
risque, elle peut être trouvée dans des bâtiments résistant aux dangers ou dans des
systèmes sociaux adaptables (Pelling, 2003). Par conséquence, ce concept peut aussi être
compris comme la capacité de reconstruire un quartier avec des composants plus solides
et plus viables. Presque quatre ans après l’ouragan Katrina, la Nouvelle-Orléans est
considérée comme un laboratoire à ciel ouvert. Le niveau de résilience de ses
communautés peut y être examiné. L’état actuel de la reconstitution de ses quartiers
diffère largement des uns aux autres. L’arrondissement historique de Holy Cross est l’un
des plus vieux quartiers de la ville, cette communauté vulnérable est connue pour son
patrimoine culturel, apparent non seulement dans son architecture unique, mais aussi ses
relations sociales. Un des principaux défi de la reconstruction du quartier de Holly Cross
est de trouver une façon de concilier la préservation du patrimoine bâti et de son tissu
urbain ancien avec de nouveaux plans de développement, afin de créer une communauté
durable. Cette étude examine les rôles des acteurs impliqués dans le processus de
reconstruction et leur efficacité sur la création d’un Holy Cross plus durable, résistant et
abordable, afin d’encourager le retour de ses résidents. Elle présente également les efforts
actuels pour proposer des projets de reconstruction durables tout en préservant le
caractère patrimonial du quartier.Resiliency is the capacity to adjust to threats and mitigate or avoid harm; it can be found in hazard-resistant buildings or adaptive social systems (Pelling, 2003). Hence, it can also be understood as the ability to rebuild a neighbourhood with stronger and more viable components. Almost four years after Hurricane Katrina, New Orleans is seen as an open laboratory in which the level of resiliency of its communities can be examined. The rebuilding status of its neighbourhoods widely differs from one to another. The historic district of Holy Cross is one of the oldest neighbourhoods in the city; this vulnerable community is known for its cultural heritage, apparent not only in its unique architecture but also its social relations. This research investigates the current process of rebuilding a more sustainable and resilient Holy Cross by assessing the efficiency of stakeholders involved in the reconstruction of affordable opportunities that work to encourage former residents to return. It also demonstrates the current efforts to build new sustainable projects while keeping the patrimonial style of the neighbourhood.
Книги з теми "Durability recovery"
1
Center, Langley Research, ed. Manual for LDEF tensile tests. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1985.
Знайти повний текст джерела
2
Hines, James R. Recovery in Europe, Pair Skating, and Ice Dancing. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039065.003.0010.
Повний текст джерелаАнотація:
This chapter discusses figure skating in Europe after World War II. The war in Europe ended in May 1945, but not until atomic bombs were dropped on Hiroshima and Nagasaki in August did Japan capitulate. Formal terms of surrender were signed a month later. The International Skating Union Council met in July 1946 and set dates for the resumption of competition. European Championships commenced at Davos on January 31, 1947, while the World Championships followed two weeks later at Stockholm. Participation at the championships demonstrated the sport's durability and stature. The ladies' and pairs' events boasted more entries than in 1939. Not surprisingly, men's events had fewer entries. Participation increased in the men's event in 1948 but not to the prewar level.
3
Pérez López, Tezozomoc, Hosefa A. Paat Estrella, Francisco Javier Barrera Lao, and Gabriela P. Aldana, eds. IX Congreso Nacional ALCONPAT 2020. EPOMEX-UAC, 2020. http://dx.doi.org/10.26359/alconpat2020.
Повний текст джерелаАнотація:
The construction industry is an indicator of economic development: in good times both individuals and companies invest to increase or improve their houses and facilities. The halted construction is an indication of economic difficulties. Hence the importance of protecting infrastructure investments through diagnostic, recovery and construction rehabilitation procedures. IX National Congress ALCONPAT Mexico 2020 addressed the thematic axes: Materials and nanomaterials, Durability and sustainability, Preservation of built heritage, Preservation, maintenance and rehabilitation, Semi and non-destructive tests, Corrosion in concrete structures, Climate Change. Four Plenary Conferences were presented, given by renowned researchers from Spain, Colombia, Mexico and Argentina. Nine Master Conferences were also presented, given by Researchers from the Autonomous University of Nuevo León, Veracruzana University, CNIC of Havana, Cuba and the Autonomous University of Campeche. 61 papers were received, divided into: 35 oral presentations 26 poster presentations. The participating institutions were: Universidad Autónoma de Campeche, Universidad Autónoma de Nuevo León, Universidad Veracruzana, Universidad Autónoma del Estado de Hidalgo, Tecnológico Nacional de México (Instituto Tecnológico de Chetumal), Universidad Autónoma de Chiapas, Cinvestav Unidad Mérida, Universidad Autónoma de Yucatán , Universidad Michoacana de San Nicolás de Hidalgo, Universidad Juárez Autónoma de Tabasco, CIIDIR IPN Campus Oaxaca, Centro Nacional de Investigaciones Científicas de Cuba, Consultor Independiente de Ecuador, Centro Internacional de Matemáticas Numéricas e Ingeniería (España), Universidad Nacional del Sur ( Argentina). Effort and enthusiasm of the participants to carry out the event in virtual mode, due to the existing adverse sanitary conditions, stands out. It is one more indication of the strength of the ALCONPAT community in maintaining the continuity of one of its activities to exchange knowledge and experiences for the improvement of practices aimed at prolonging the durability of the infrastructure.
Частини книг з теми "Durability recovery"
1
Layne, Christopher M., and Stevan Hobfoll. "Understanding Post-Traumatic Adjustment Trajectories in School-Age Youth." In Supporting and Educating Traumatized Students, edited by Eric Rossen, 75–98. Oxford University Press, 2020. http://dx.doi.org/10.1093/med-psych/9780190052737.003.0005.
Повний текст джерелаАнотація:
Children and adolescents experience a wide range of reactions to trauma and loss, which can change over time and across development. Accurately recognizing and describing how youth are responding to life adversities is a key step in creating a trauma-informed school. Drawing on various theories, the authors propose 10 trajectories of post-traumatic adjustment. These consist of four trajectories of positive adjustment (stress resistance, resilient recovery, delayed recovery, and growth) and six trajectories of generally maladaptive adjustment (decline, delayed decline [sleeper effects], distress tolerance, phasic adjustment, severe decline, and chronic maladaptive functioning). The authors then describe key propositions of conservation of resource theory and propose how different resource qualities (e.g., potency, durability, accessibility) can contribute to different adjustment trajectories. They then consider how to use these resource qualities as a problem-solving tool for intervention planning and, more broadly, to help create school environments that steer children and adolescents towards positive post-traumatic adjustment trajectories, including stress resistance, resilient recovery, and growth.
2
Baker, John. "Family interests and settlements at common law." In Baker and Milsom Sources of English Legal History, 35–102. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198847809.003.0003.
Повний текст джерелаАнотація:
The cases in this chapter relate to property provisions for widows (dower), widowers (curtesy), younger sons, and daughters. A group of reports throws light on the difficulties in interpreting conditional gifts restricted to descendants, culminating in the Statute De Donis (1285) and its outcome, the statutory fee tail. Later reports show the perplexity occasioned over the legal nature of the fee tail and its durability. There are also discussions of the common recovery as a method of barring the entail, of the concept of the remainder, and of doubts about the validity of contingent remainders.
Тези доповідей конференцій з теми "Durability recovery"
1
Tandon, G. P., K. Goecke, K. Cable, and J. Baur. "Durability Assessment of Fabric-Reinforced Shape-Memory Polymer Composites." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1242.
Повний текст джерелаАнотація:
The present study is a baseline assessment of the environmental durability of current state-of-the-art, fabric-reinforced shape memory materials being considered for morphing applications. Tensile dog-bone-shaped specimens are cut along three different directions, namely, along 0°, perpendicular (90°), and at 45° to the orientation of the fabric. The shape memory properties and elastomeric response before and after relevant environmental exposure to water at 49°C for 4 days, in lube oil at room temperature and at 49°C for 24 hours, and after exposure to Xenon Arc (63°C, 18 minutes water and light/102 minutes light only) and spectral intensity of 0.3 to 0.4 watts/m2 for 125 cycles (250 hours exposure time) are measured. Weight loss of the as-received and conditioned specimens is monitored while the dog-bone-shaped specimens are subjected to recovery following fixation. Parameters being investigated include stored strain, recovery stress, shape fixity, shape recovery, and modulus in the glassy and rubbery state.
2
Díez, Kelly, Alonso Ocampo, Alejandro Restrepo, Jonny Patiño, Juan Rayo, Diego Ayala, and Luis Rueda. "A Novel Gas Dispersible Foam Technology Can Improve the Efficiency of Gas Injection Processes for IOR-EOR Operations in Unconventional Reservoirs." In SPE Improved Oil Recovery Conference. SPE, 2022. http://dx.doi.org/10.2118/209381-ms.
Повний текст джерелаАнотація:
Abstract Gas injection has become one of the most investigated methods for enhanced oil recovery in unconventional reservoirs. Nonetheless, the presence of natural and induced fractures negatively impacts the gas injection efficiency due to its channeling towards nearby wells or poor coverage in the treated area due to lack of conformance. To overcome these difficulties and boost the oil recovery process by gas injection, this work presents a novel gas dispersible foam technology to improve the sweep efficiency of gas injection in unconventional IOR/EOR projects. The development and evaluation of this technology has passed through a series of laboratory assurance stages that include fluids characterization, compatibility, and extensive coreflooding tests. A modelling approach is also presented, which was validated using lab and field data taken from the implementation of the technique in an extremely low porosity, tight and naturally fractured quartz-arenite gas condensate reservoir in Colombia. The workflow herein presented encompasses interdisciplinary components such as laboratory evaluation, reservoir modeling, treatment design, and wellsite setup and execution. Laboratory testing and inter-well field applications results, along with the development and testing of a phenomenological modelling approach, demonstrate that the gas dispersible foam injection can be a high potential technique for oil and/or condensate recovery in unconventional reservoirs given its proven ability to improve the deep reservoir gas conformance and avoid the lack of gas containment during gas injection IOR/EOR in unconventional plays. Lab results in a tight naturally fractured sample, suggest that the estimated incremental oil recovery was ~36% and the effective gas mobility reduction was ~45%. This technique also exhibited less chemical adsorption losses, which contributes to better chemical emplacement and longer durability. The main results of the field application, including a progressive decrease in gas injectivity at the gas injector, a consistent reduction in GOR with an associated oil increase at the influenced producer well, and a reported treatment durability of ~ 6 months, were all properly represented by the model. Each step of the workflow herein proposed not only assures the gas-based projects success, but also allows for smaller logistics footprint at the well location, along with less water consumption, which translates into cheaper and more efficient gas injection conformance operations.
3
Derombise, Guillaume, Laetitia Van Schoors, Peter Davies, and Loic Dussud. "Durability of Aramid Ropes in a Marine Environment." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57199.
Повний текст джерелаАнотація:
This paper presents first results from a study of the long term marine durability of aramid fibers. The program was started based on the experience of IFREMER using aramid fiber ropes for instrumentation and deep sea handling lines, which is described here. Instrumentation lines showed no degradation after recovery, but results from testing of handling ropes after service indicated significant strength reduction. This led to the development of specific test facilities to study bend-over-sheave performance. The overall aim is to improve understanding of the roles of both the fiber and the rope construction in a marine environment, in order to improve long term strength retention of aramid marine ropes.
4
Yoshioka, Hiroaki, Yusuke Itoh, Ayumu Kiyomori, and Yuji Oki. "Degradation self-recovery and durability extension on solid-state dye laser in blue region." In CLEO: Science and Innovations. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/cleo_si.2013.cf1i.5.
Повний текст джерела
5
Davies, Peter, Pierre-Yves Le Gac, Maelenn Le Gall, Mael Arhant, and Corentin Humeau. "Durability of Polymers and Composites: The Key to Reliable Marine Renewable Energy Production." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77558.
Повний текст джерелаАнотація:
Recovery of marine energy is progressing from the prototype stage to arrays, and all of the systems currently being developed include critical elements manufactured from polymers and composites. Structural MRE (Marine Renewable Energy) components range from composite turbine blades, for floating wind and tidal turbines, to polymer fiber ropes for wave, tidal and floating wind mooring systems. Elastomeric components are also widely used for sealing and protection. In all cases it is essential to understand how seawater diffuses into these polymers and how it affects mechanical properties; this allows appropriate safety factors to be applied without excessive over-conservative design, and can result in significant cost reduction. This paper will present a methodology for evaluating the long term behavior of such components based on accelerated testing. Three examples will be shown to illustrate the approach; tidal turbine blade composites, synthetic fiber rope moorings, and rubber components. In each case the seawater diffusion kinetics will be described first, then the influence of water on mechanical behavior will be quantified for the particular loadings of interest, and finally results from fully coupled fatigue tests in seawater will be discussed.
6
Fratini, Fabio, Daniela Pittaluga, and Silvia Rescic. "The paving of ancient paths, testimony of an ancient culture: recovery of a traditional route in Genoa (Liguria, Italy)." In HERITAGE2022 International Conference on Vernacular Heritage: Culture, People and Sustainability. Valencia: Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/heritage2022.2022.14486.
Повний текст джерелаАнотація:
One of the characteristic features of villages and towns is the paths that run through them. These often bear the traces of an ancient culture, which is manifested both in the materials used and in the construction and maintenance practices implemented in different territories. Rediscovering these traces is essential to understanding and safeguarding this significant component of the material history, which is often distorted or obliterated during urban interventions, owing to lack of knowledge. This paper presents a project for the enhancement and recovery of one of the traditional routes that run through Genoa from the coast to the mountains. These so-called "crêuze" are frequently made up of a central strip of bricks flanked by cobble-stones. In rainy weather, these bricks facilitate the passage of people, while proper drainage is ensured by the cambered profile and the cobble-stone side channels, which slow down the flow of water. To maximise the durability of these paths, both the construction techniques and the wise choice of materials and their processing were fundamental. Thus, this research also aims to ascertain the durability of the different materials used through their compositional and physical analysis. Awareness of the material culture that enabled such a high level of expertise to be achieved in the construction of these particular paths constitutes a valuable resource for correct interventions. The project involves private and public partners and also provides an opportunity to protect the territory through the proper management of water. In the past, water management was well organized. However, the various urban stratifications have given rise to evident problems.
7
Jung, Il-Ho, Tae-Won Park, Jong-Hwi Seo, Kab-Jin Jun, Hong Jae Yim, Hyuk Kim, and Joong-Kyung Park. "A Study on the Fatigue Life Prediction of OHT Vehicle Structures Using the Modal Stress Recovery Method." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84319.
Повний текст джерелаАнотація:
In this paper, a computer aided analysis method is proposed for a durability assessment in the early design stages using the Modal Stress Recovery (MSR) and the linear damage rule. From a dynamic analysis of the OHT vehicle system with some flexible bodies, modal displacement time histories of vehicle structure components are calculated. From finite element analysis of components, modal stresses are calculated. With the modal displacement time history and the modal stress of the component, the dynamic stress time history at the critical location is produced using the superposition principle. Using the linear damage rule and the cycle counting method, the fatigue life is predicted from the dynamic stress time history. The process of predicting the fatigue life using the proposed computer models in this paper may be applied to structures of various dynamic systems.
8
Bahador, Mehdi, Takamasa Ito, and Bengt Sunde´n. "Thermal Analysis of a Heat Recovery System for Externally Fired Micro Gas Turbines." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28076.
Повний текст джерелаАнотація:
Several serious problems such as material durability and fouling in the High Temperature Heat Exchanger (HTEH) for Externally Fired Micro Gas Turbines (EFMGT) cause the low thermal efficiency. In this study for increasing the thermal efficiency, a duct around a cylindrical fixed bed combustor which burns wood pellets is proposed and two different designs, empty and porous material filled, are investigated. A heat transfer model, based on coupling between radiative and convective modes at the combustor and duct sides is developed to evaluate the important geometrical parameters in the different designs. The predicted results for the empty duct show that although an increase of the combustion length increases the temperature of air at the duct outlet, an increase of the combustor diameter is more effective. In addition, an increase of the duct cross section is the most effective way and according to the predictions, the pressure drop in this case is still acceptable. The porous duct design shows a significant increase in the air temperature at the duct outlet. However, the pressure drop is high. The investigation shows the possibility of reduction of the pressure drop with the same amount of heat transfer by selecting suitable particle size and porosity.
9
Xavier, Luiz Gustavo C., Fernando Luís Dotti, Cristina Meinhardt, and Odorico M. Mendizabal. "Shrinking Logs by Safely Discarding Commands." In Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. Sociedade Brasileira de Computação - SBC, 2021. http://dx.doi.org/10.5753/sbrc.2021.16749.
Повний текст джерелаАнотація:
Logs are crucial to the development of dependable distributed applications. By logging entries on a sequential global log, systems can synchronize updates over distributed replicas and provide a consistent state recovery in the presence of faults. However, logs account for a significant overhead on fault-tolerant applications' performance, and many studies present alternatives to alleviate servers from such costs. This paper proposes an approach to reduce log footprint by safely and efficiently discarding entries from logs. The expected benefits are twofold: minimize durability costs and speed up recovery. Besides shrinking logging information, the proposed technique splits the log into several files and incorporates strategies to reduce logging overhead, such as batching and parallel I/O. The proposed approach was compared to a standard logging scheme using realistic workloads. Results demonstrate that our logging approach is capable to generate compressed logs and reduce recovery time, imposing half the throughput overhead of a standard logging scheme.
10
Tandon, G. P., K. E. Goecke, and Ryan S. Justice. "Influence of Microstructure and UV-Conditioning on the Mechanical Response of Polymeric Foam Under Compressive Loading." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5060.
Повний текст джерелаАнотація:
The aim of this study is to evaluate the influence of microstructure, specifically, variations in foam cell size and density, on the compressive stress-strain behavior of polymeric foam material. Foams with varying densities are examined under incremental loadings to different prescribed strain levels. A comparison is made of the maximum stress level attained during deformation and residual strain on complete unloading and following recovery. Additionally, the durability of the foam material on exposure to service environment, namely, exposure to ultra-violet (UV) light and humidity, is considered. Cylindrical compression samples are exposed to Xenon Arc (63°C, 18 minutes water and light/102 minutes light only) and spectral intensity of 0.3 to 0.4 watts/m2 for 288 cycles. Parameters investigated include changes in modulus, maximum stress, residual strain and linear shape recovery due to conditioning and mechanical cycling.