Relevant bibliographies by topics / Pressure cover

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pressure cover'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Pressure cover"

1

Barbour, S. Lee, and Ernest K. Yanful. "A column study of static nonequilibrium fluid pressures in sand during prolonged drainage." Canadian Geotechnical Journal 31, no. 2 (April 1, 1994): 299–303. http://dx.doi.org/10.1139/t94-034.

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In the design of layered soil systems, such as the design of liners or covers over unsaturated soil, a key design concern is the magnitude of negative fluid pressure that will develop along the base of the liner or cover. In the absence of evaporation or vapour migration, the maximum negative fluid pressures will develop near the cessation of drainage. Previous theoretical analyses and numerical modelling of these systems have indicated that this pressure will be the pressure at which an underlying sand reaches its residual water content. The hydraulic conductivity of the sand at these pressures is so small that "static" nonequilibrium pressures are sustained over long periods of time. In this note, laboratory verification is provided for the magnitude of these pressures based on drainage of a fine and coarse sand column. Key words : covers, liners, air-entry value, residual saturation, layering, drainage.
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McClung, D. M. "Comparison of analytical snow pressure models." Canadian Geotechnical Journal 30, no. 6 (December 1, 1993): 947–52. http://dx.doi.org/10.1139/t93-092.

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Two analytical models for snow creep and glide forces on structures in deep snow covers are compared theoretically and checked against field data. The results show that the formulations contained in the 1990 Swiss guidelines for avalanche defence are incompatible with a continuum mechanical model based on linear creep and glide constitutive equations. In addition, the formulations in the 1990 Swiss guidelines neglect the pressure from the component of body force in the slope-normal direction, which is an unnecessary simplification. Key words : snow pressure, quasi-static, creep, glide, deep snow cover, continuum.
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Kong, Xiangzhe, Hongyan Yang, Shurong Ding, and Xiaoming Peng. "Effects of Rolling Speed and Reduction on Rolling Simulation Results of Monolithic Fuel Plates." International Journal of Nonlinear Sciences and Numerical Simulation 19, no. 6 (September 25, 2018): 605–19. http://dx.doi.org/10.1515/ijnsns-2017-0155.

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AbstractThe in-pile performances of UMo/Zr monolithic nuclear fuel plates are directly related to their manufacturing quality. The interface bonding strength depends on the contact pressures over the surfaces of the Zircaloy covers, the Zircaloy frame and the UMo coupon during rolling. The contact pressures are affected by the process parameters such as the rolling speed and the reduction per pass. These parameters should be carefully investigated to optimize the fabrication process. In this study, a three-dimensional stress updating algorithm is presented for the strain-rate-dependent mechanical constitutive relation of Zircaloy. Three-dimensional FEM simulation of the rolling process for monolithic nuclear fuel plates is carried out. The influences of the rolling speed and reduction on the geometrical shape and the contact pressure between the Zircaloy cover and the coupon will be discussed according to the computational results. The results indicate that (1) along the plate width direction the maximum contact pressure between the coupon and the Zircaloy cover exists at the center and decreases towards the edge; (2) when the rolling speed or reduction increases, the maximum contact pressure increases as well; and the dog-bone shape of the coupon at the back end is more visible.
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Ahn, Chang-Kyun, and Seok-Won Lee. "Ground subsidence due to the backfill pressure in tunnel boring machine." Proceedings of the International Association of Hydrological Sciences 382 (April 22, 2020): 19–24. http://dx.doi.org/10.5194/piahs-382-19-2020.

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Abstract. In shield tunnel boring machine constructions, backfill pressure affects surface settlement and the stability of other underground structures nearby. Therefore, it is essential to pre-calculate backfill pressure in the design stage. This study examines and compares the seven internationally known backfill pressure calculation theories and calculates and analyzes the backfill pressures in six virtual ground conditions. The calculated backfill pressure increased as the ground cover increased, but the increase rate decreased. Also, this study performs a numerical analysis to identify the impact on ground settlement and tunnel crown settlement. In the end, settlement was more impacted by face pressure than backfill pressure in the unsaturated and saturated ground conditions. Also, as the ground cover increased, the impact of backfill pressure decreased, and as the applied face pressure decreased, the impact of backfill pressure increased.
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Gatt, Alfred, Andrea Briffa, Nachiappan Chockalingam, and Cynthia Formosa. "The Applicability of Plantar Padding in Reducing Peak Plantar Pressure in the Forefeet of Healthy Adults." Journal of the American Podiatric Medical Association 106, no. 4 (July 1, 2016): 246–51. http://dx.doi.org/10.7547/15-025.

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Background: We investigated the effectiveness and durability of two types of plantar padding, the plantar metatarsal pad and the single wing plantar cover, which are commonly used for reducing forefoot plantar pressures. Methods: Mean peak plantar pressure and impulse at the hallux and at the first, second, third, and fourth metatarsophalangeal joints across both feet were recorded using the two-step method in 18 individuals with normal asymptomatic feet. Plantar paddings were retained for 5 days, and their durability and effectiveness were assessed by repeating the foot plantar measurement at baseline and after 3 and 5 days. Results: The single wing plantar cover devised from 5-mm felt adhesive padding was effective and durable in reducing peak plantar pressure and impulse at the first metatarsophalangeal joint (P = .001 and P = .015, respectively); however, it was not found to be effective in reducing peak plantar pressure and impulse at the hallux (P = .782 and P = .845, respectively). The plantar metatarsal pad was not effective in reducing plantar forefoot pressure and impulse at the second, third, and fourth metatarsophalangeal joints (P = .310 and P = .174, respectively). Conclusions: These results imply limited applicability of the single wing plantar cover and the plantar metatarsal pad in reducing hallux pressure and second through fourth metatarsophalangeal joint pressure, respectively. However, the single wing plantar cover remained durable for the 5 days of the trial and was effective in reducing the peak plantar pressure and impulse underneath the first metatarsophalangeal joint.
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Ng, Charles W. W., R. Chen, J. L. Coo, J. Liu, J. J. Ni, Y. M. Chen, L. t. Zhan, H. W. Guo, and B. W. Lu. "A novel vegetated three-layer landfill cover system using recycled construction wastes without geomembrane." Canadian Geotechnical Journal 56, no. 12 (December 2019): 1863–75. http://dx.doi.org/10.1139/cgj-2017-0728.

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To promote environmental protection and sustainability, the use of plants and recycled wastes in geotechnical construction such as landfill covers is recommended. A landfill cover field test was conducted at the Shenzhen Xiaping landfill site, located in a humid climatic region of China. The main objective was to validate the field performance of a novel vegetated three-layer landfill cover system using recycled construction waste without the need of geomembrane. Unsieved completely decomposed granite and coarsely crushed concrete was used for the top and intermediate layers while sieved completely decomposed granite was used as the lowest layer. One section was transplanted with Bermuda grass while the other section was left bare. To assess the landfill cover performance, pore-water pressure, volumetric water content, percolation, and atmospheric parameters were measured for a period of 13 months under natural climatic conditions. The cumulative rainfall depth was about 2950 mm over the entire monitoring period. During rainfall, the presence of grass led to lower pore-water pressure (or higher suction) and volumetric water content in the three-layer landfill cover system. At the end of monitoring, the cumulative percolation was about 27 and 20 mm for the bare and grass-covered landfill covers, respectively. It is evident that the vegetated three-layer landfill cover system using recycled concrete without geomembrane can be effective in minimizing percolation in humid climates.
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Shimizu, Hiromu, Eizi Akitaya, Mitsuo Oh’Izumi, and Yauso Hirabayashi. "Measurement of Strains and Pressure in a Snow Cover on a Slope." Annals of Glaciology 6 (1985): 303–4. http://dx.doi.org/10.3189/1985aog6-1-303-304.

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Four methods of measuring strain and pressure in a snow cover on a slope are presented. The hole-mark method and short-span deformation gauge are used to measure the internal strains of snow, the long-span deformation gauge to measure the local extension/contraction of a snow cover, and snow pressure gauge to measure the pressure in a snow cover.
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Shimizu, Hiromu, Eizi Akitaya, Mitsuo Oh’Izumi, and Yauso Hirabayashi. "Measurement of Strains and Pressure in a Snow Cover on a Slope." Annals of Glaciology 6 (1985): 303–4. http://dx.doi.org/10.1017/s0260305500010715.

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Four methods of measuring strain and pressure in a snow cover on a slope are presented. The hole-mark method and short-span deformation gauge are used to measure the internal strains of snow, the long-span deformation gauge to measure the local extension/contraction of a snow cover, and snow pressure gauge to measure the pressure in a snow cover.
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Beardsley, Kyle C. "Pain, pressure and political cover: Explaining mediation incidence." Journal of Peace Research 47, no. 4 (March 19, 2010): 395–406. http://dx.doi.org/10.1177/0022343309356384.

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Bertroche, J. Tyler, Patrik Pipkorn, Paul Zolkind, Craig A. Buchman, and Jose P. Zevallos. "Negative-Pressure Aerosol Cover for COVID-19 Tracheostomy." JAMA Otolaryngology–Head & Neck Surgery 146, no. 7 (July 1, 2020): 672. http://dx.doi.org/10.1001/jamaoto.2020.1081.

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Dissertations / Theses on the topic "Pressure cover"

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Haque, Md Mominul. "Comparison of behavior of 1520 mm (60 in.) concrete pipe with SIDD design under deep cover." Ohio : Ohio University, 1998. http://www.ohiolink.edu/etd/view.cgi?ohiou1176497142.

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Barbiero, Marialuisa. "Cover cracking of concrete slabs induced by rebar corrosion." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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The phenomenon of concrete cracking due to corrosion of embedded reinforcement steel bars in concrete has been investigated for years. As a consequence of the steel corrosion that is accelerated by cold climates, sea water, spray and from chloride-based acceleration agents, internal cracks form. These agents originate a slow propagation of corrosion products around the embedded steel, forming a passive film, which can be elementary understood as a radial force present all around the steel, creating compressive stresses in concrete. This pressure causes the formation of microcracks that permit the passive film to infill in the structure and propagate. A finite element analysis will be carried out, in order to study the relationship of reinforced concrete features. These are the bar diameter, space between the rebars, concrete strength and the cover thickness. In order to simulate and describe the behaviour of the concrete, the Concrete Damaged Plasticity – CDP, is used. The elastic is easily described by the elastic modulus and the Poisson’s ratio, while the non-linear is more complex. The CDP method considers both compression and tension strengths, gaining as output the cracking pattern. The simulation proposed consists by the modelling of a two-dimensional model, in which the reinforced steel bars will be inserted as holes in the geometric features. The model features internal boundary conditions placed on each side of the rebars/holes. At the end, four groups of simulations are proposed, in which various combinations of the parameters considered, are provided. These corresponds of four different concrete strengths, three different diameters of the steel rebars, five different cover thicknesses and four different spacings between the rebars. The simulations show the probable cracking paths, based on the internal displacement given by the pressure formed by the corrosion products.
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Roshan, Arman. "Different Approaches to Model Cover-Cracking of RC Structures due to Corrosion." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37104.

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This thesis presents three different approaches to model corrosion-induced crack propagation in reinforced concrete structures. The first approach is solved numerically using finite differences to model the softening behaviour of concrete in tension. The second approach idealizes the concrete cover as either a brittle elastic or an elastoplastic material so that it may be solved using a closed-form solution. Both approaches are based on a thick-walled cylinder (TWC) analogy and consider rust compressibility and rust diffusion into cracks. The third approach uses finite element modelling to validate the application of the TWC and perform a parametric study. The results obtained using each approach are compared against each other as well as against experimental results. The TWC was found to be an appropriate analogy for the geometries and reinforcement configurations considered. Analytical models were found to provide upper and lower limits to the results based on the numerical model. The experimental data found in the literature showed reasonable agreement with predictions from the numerical and elastoplastic models.
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Koryčanský, Roman. "Ventilace tlakové obálky reaktoru GFR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231459.

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This paper describes the design of the ventilation pressure cover of the demonstrator GFR. The first part is a brief research project GFR and the effects of temperature on the inside structures. In the following part is calculated balance heat losses within the pressure cover for three cases: non-insulated, fully-insulated and partially insulated surface of the reactor. The following is a design of a heat sink for partially insulated surface.
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Ševčík, Ondřej. "Aplikace vysokotlakého palivového systému na vznětový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378502.

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This thesis focuses on the design of new high pressure injection system application on diesel engine. The design came from company Zetor’s demands. For this application was chosen system Common Rail supplied by company Bosch. Assignment was separated into several tasks. Research of suitable components for low pressure section, design of waste system and high pressure injection tubes design including injector clamping. Due to injectors used in this system was necessary to redesign cover for valves and even new system to lead wires from outside of the engine to injectors. Injector is attached by screw connection, which is composed from screw and clamping jaw. These parts are subjected to an analytic calculations. Clamping jaw of injector is even subjected to a FEM analysis, which focuses on fatigue life. Finally, the drawings were documented.
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Stumpf, Lizete. "Atributos físicos e mecânicos de um solo construído em área de mineração de carvão em Candiota-RS, cultivado com diferentes espécies vegetais." Universidade Federal de Pelotas, 2011. http://repositorio.ufpel.edu.br/handle/ri/2432.

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Made available in DSpace on 2014-08-20T14:36:53Z (GMT). No. of bitstreams: 1 Dissertacao_Lizete_Stumpf.pdf: 2371879 bytes, checksum: 6016698f00243a4e4da56fcfcfb81d48 (MD5) Previous issue date: 2011-04-07
The largest Brazilian coal mine is located in the municipality of Candiota, Rio Grande do Sul state. Carbon seams lie near the surface around 10 to 25 meters deep, it can be mined open-pit. This mining method uses a dragline, a large machine for removing carbon, it involves changes in topography, vegetation and hydrological regime of the area. Density, porosity and water retention are directly affected. The major change of constructed soil physical attributes comes from removal of layers of original soil and deposition on the regeneration areas. Excessive machinery traffic during soil construction causes compaction of the area, it makes difficult water infiltration into soil profile facilitating water erosion, and inhibiting the vegetation of the area. The use of soil uncompressed plants is an important strategy on recovering soil structural quality. The knowledge of physical parameters as density and aggregation of constructed soils in mining areas must be considered of great importance for evaluating physical attributes since it can indicates changes in porosity, degree of compaction, root penetration, and water and air permeability. Mechanical parameters as pre- consolidation pressure and compression index can indicate soil bearing capacity. The general objective of the work was analyze the potential of different cover crops on recovery of coal mining degraded areas, by determining physicmechanical parameters of the constructed soil over time. Treatments with single plants established in October-November, 2007 were analyzed T1- Capim vaquero (Cynodon dactilon), T2 - Braquiaria brizanta (Brachiaria brizantha), T3 - Tanzânia (Panicum maximun), T4 - Braquiaria humidícola (Brachiaria humidicola), T7 - Hemartria (Hemarthria altissima), T8 - Grama Tifton (Cynodon dactilon). Constructed soil without cover crops was used as a control SCSP in order to observe the action of plants on constructed soil attributes recovery. As general conclusions we can state that because of little time for establishing the experiment, the cover crop had incipient action on improvement of physical attributes, but when compared with control presented highest density and porosity, DPM, and percentage of macroaggregates, highlighting Brachiaria.
A maior jazida brasileira de carvão mineral localiza-se em Candiota-RS. Nesta localidade o carvão encontra-se próximo à superfície, em torno de 10 a 25m de profundidade, podendo ser minerado a céu aberto. Este método de lavra emprega a dragline , máquina de grande porte, para remoção do carvão, acarretando em modificações na topografia, na vegetação e no regime hidrológico da área. Logo, a principal alteração dos atributos físicos do solo construído advém da remoção das camadas do solo original e deposição nas áreas de regeneração. O excessivo tráfego de máquinas durante a construção do solo acarreta na compactação da área, dificultando a infiltração da água ao longo do perfil, facilitando a erosão hídrica e inibindo a revegetação da área. O uso de plantas que atuam como descompactadoras do solo constitui-se importante estratégia na recuperação da qualidade estrutural de solo. O conhecimento de parâmetros físicos como a densidade e a agregação de solos construídos em áreas de mineração deve ser considerado de grande importância na avaliação dos atributos físicos, já que poderá indicar as mudanças ocorridas na porosidade, grau de compactação, penetração das raízes e permeabilidade da água e do ar. Os parâmetros mecânicos como a pressão de pré-consolidação e o índice de compressão podem indicar a capacidade de suporte de carga do solo, podendo evitar a compactação adicional da área. Neste contexto, o objetivo geral do trabalho foi analisar o potencial de diferentes plantas de cobertura na recuperação de áreas degradadas pela mineração de carvão, através da determinação de parâmetros físico-mecânicos do solo construído, ao longo do tempo. Foram analisados os tratamentos com as plantas solteiras, implantadas em outubro/novembro de 2007: T1- Capim vaquero (Cynodon dactilon), T2 - Braquiaria brizanta (Brachiaria brizantha), T3 - Tanzânia (Panicum maximun), T4 - Braquiaria humidícola (Brachiaria humidicola), T7 - Hemartria (Hemarthria altissima), T8 - Grama Tifton (Cynodon dactilon). Como testemunha usou-se o solo construído sem plantas de cobertura SCSP, no intuito de observar a ação das plantas na recuperação dos atributos do solo construído. Como conclusões gerais pode-se dizer que devido ao pouco tempo de implantação do experimento, as plantas de cobertura tiveram ação incipiente na melhoria dos atributos físicos-mecânicos, mas ao serem comparadas com a testemunha, apresentaram melhores valores de densidade, porosidade total, DMP e porcentagem de macroagregados, destacando as braquiarias, até o presente momento.
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Ignatenko-Desanlis, Oxana. "L'image de la Révolution russe dans la presse satirique russe de 1917." Thesis, Paris 1, 2015. http://www.theses.fr/2015PA010651/document.

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Basé sur des documents authentiques rares et inédits, ce travail a pour but d’étoffer une nouvelle image de la Révolution russe via les revues satiriques de l’époque. Ces revues sont de véritables œuvres d’art révolutionnaires qui interrogent la liberté de la presse et l’art durant une période charnière en Russie. Il s’agit d’une témoignage direct de cette année révolutionnaire, véhiculé par des artistes avant-gardistes libérés de la censure, et qui vont, au fil des semaines, composer une image originale de l’année 2017 et des deux révolutions russes de février et d’octobre au travers des couvertures illustrées. Afin de conserver la dynamique chronologique des événements, les revues ont été mises en parallèle avec les témoignages écrits d’époque, de personnalités diverses telles que Claude Anet, Pierre Pascal, Maxime Gorki, Maurice Paléologue, ou encore John S. Reed. Tous ont accompagné les bouleversements révolutionnaires à leur manière et constituent l’écho historique de ces revues satiriques illustrées qui nous permettent de plonger au cœur même du quotidien des révolutions russes caractérisant une nouvelle image de la Révolution, mouvante, singulière et remarquable
Based on rare and authentic documents, this work endeavors to elaborate a new image of the Russian Revolution through satirical magazines of the time. These illustrated reviews are genuine works of art that question freedom of the press and art itself during a transnational period in Russia. They serve as a direct testimony of this revolutionary year, providing an original image of the two Russian revolutions of February and October and featuring on the review’s front cover week after week avant-garde artists freed from censorship of the press. In order to preserve the chronological dynamic of the events, satirical reviews are coupled with historical testimony of various writers such as Claude Anet, Pierre Pascal, Maxime Gorki, Maurice Paleologue, and John S. Reed, among others. All of them had supported the revolutionary turmoil in their own way and constitute an historical echo of the illustrated satirical reviews allowing us to plunge into the heart of daily life during the two Russian revolutions, and thus creating a new image of the Revolution, set in motion, single-minded, and noteworthy
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Houšť, Vladimír. "Tenkostěnné přesypané konstrukce." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-234547.

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The thesis is devoted to analysing of flexible buried arch structures. Modelling of the flexible concrete arch is carried out via a nonlinear finite element model that accounts for soil constitutive relations, soil-structure interactions, sequential construction stages and soil compaction. Advanced FE-model was verified by measurement obtained by full-scale field testing of two buried arches. Mathematical optimization methods of genetic algorithms and Levenberg-Marquardt method are applied to already calibrated complex computational models in order to reduce bending and associated flexural stresses in the concrete section of buried arch. Centre line of the arch is parameterized by cubic Bezier curve to reach interpolation of thrust line. Optimization technique is applied with extensive parametrical study which shows the optimal shapes for buried arches of various span/rise ratios, backfill depths and foundation soil types. For practical application are given coordinates of Bézier curve control polygons of particular resulting shape. Subsequently is applied optimization method for a theoretical reduction of tensile stresses obtained by shape optimization of previously verified numerical model of buried arch. Comparisons of earth pressure, bending moment axial force and deflection of flexible structure during sequential construction of different span/raise ratios of buried arches are presented. The behaviour of flexible buried arch with effect of local traffic load model LM1 has been analysed via 3D finite elements model with respect to different depth of backfill above crown.
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Sun, Tung-Liang, and 孫東亮. "The Robust Design on the Pressure Safety Mechanism of the Battery Cover Plate in the Cellular Phone." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/77237009530079761919.

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Nengovhela, Ndoweni Mary. "The use of cover crops to increase yield and reduce pest pressure in a commercial avocado orchard at Levubu, Limpopo Province." Diss., 2020. http://hdl.handle.net/11602/1599.

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MENVSC
Department of Ecology and Resource Management
The study investigated the impact of cover crops (Medicago sativa, Lotus corniculatus, Trifolium pratense, Melilotus alba and Phacelia tanacetifolia), bare soil and natural ground cover on pest and beneficial arthropods, soil health, crop yield, pest damage and weed suppression in avocado orchards. The trial plots were sited within established commercial avocado orchards with trees of similar cultivar (‘Hass’), soil-type and age, located in Levubu, Limpopo, South Africa. Mixtures of cover crops were planted in the alleys of avocado orchards and the effects were compared to that of a control (other half of the orchard). Mechanical clearing of vegetation in half of the alleys of different avocado orchards were compared to the other half that was left undisturbed. Data were collected during the flowering and fruit set stages of the avocado trees in the months of September - November 2019. Results revealed that there was higher abundance and diversity of flowering plants in the orchard alleys of the cover crop treatment compared to the control comprising of natural vegetation. Cover crops had a significantly positive effect on the soil health of the orchard but little or no effect on beneficial arthropods within the orchard nor any positive effect on the pests of avocados. However, the number of thrips scouted on the fruit were significantly less where cover crops were established. Avocado scale infection rates were also significantly lower where cover crops were established. There were significantly less arthropods, and specifically pests, pollinators and herbivores where the topsoil was removed mechanically. The yield resulting from the orchard half where cover crops were established were significantly higher. More research still needs to be done about the use, management and impact of cover cropping on not only commercial avocado orchards but on other fruit crops. This study shows good evidence for the benefits for using cover crops and the negative effects in having no vegetation cover in the orchards.
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Books on the topic "Pressure cover"

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Books, Tefy. Blood Pressure Log Book: Daily Blood Pressure LogBook : (Funny Cover). Independently Published, 2020.

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Books, Tefy. Blood Pressure Log Book: Daily Blood Pressure LogBook : (Colorful Stripes Cover). Independently Published, 2020.

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Cole, Baz. Blood Pressure Journal: Monitor Your Blood Pressure and Heart Rate with Flower Cover. Independently Published, 2020.

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Cole, Baz. Blood Pressure Log Book: Monitor Your Blood Pressure and Heart Rate with Snowflake Cover. Independently Published, 2020.

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Girl Named Digit: Under Cover, under Pressure, under Estimated. Houghton Mifflin Harcourt Trade & Reference Publishers, 2013.

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Cole, Baz. Blood Pressure Journal: Monitor Your Blood Pressure and Heart Rate with a Big Red Heart Cover. Independently Published, 2020.

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Quote, K. D. P. Blood Pressure Levels: Blood Pressure Log Book Record,Health Organizer, Heart Rate Pulse Tracker at Home Soft Cover,. Independently Published, 2020.

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Quote, K. D. P. Blood Pressure Tracker: Blood Pressure Log Book Record,Health Organizer, Heart Rate Pulse Tracker at Home Soft Cover,. Independently Published, 2020.

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WADE, Muriel. Blood Pressure: Featuring Cute Cover for Strawberry Lovers- Blood Pressure Journal, Tracker to Lower Hypertension, Health Logbook for Adults. Independently Published, 2020.

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Quote, K. D. P. Pressure Testing Daily Log: Blood Pressure Log Book Record,Health Organizer, Heart Rate Pulse Tracker at Home Soft Cover,. Independently Published, 2020.

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Book chapters on the topic "Pressure cover"

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Durner, Edward F. "Analyzing a series of experiments." In Applied plant science experimental design and statistical analysis using the SAS® OnDemand for Academics, 252–84. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789249927.0016.

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Abstract In many plant science experiments, normally there are certain factors that can't be control which may influence the outcome of the work. Such factors include weather and pest pressure. In order to get an accurate and reliable measure of crop performance, the experiment is repeated over time, location or both. These repeated experiments should be analyzed in such a fashion that the data from each individual experiment are combined into one grand analysis. This chapter will cover these types of experiments and their analysis. The influence of nitrogen fertilization on broccoli productivity during two seasons, spring and fall, was used as an example.
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Jančo, R., and P. Élesztős. "Thermal Field Simulation of Repair Threads in a Hole in the Cover of a Pressure Vessel by Welding Using Sysweld." In Advances in Mechanism Design II, 191–98. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44087-3_25.

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Stansfield, Julia H., Martin R. Perrow, Louise D. Tench, Adrian J. D. Jowitt, and Ayesha A. L. Taylor. "Submerged macrophytes as refuges for grazing Cladocera against fish predation: observations on seasonal changes in relation to macrophyte cover and predation pressure." In Shallow Lakes ’95, 229–40. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5648-6_25.

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Uddin, Kabir, Mir A. Matin, Nishanta Khanal, Sajana Maharjan, Birendra Bajracharya, Karis Tenneson, Ate Poortinga, et al. "Regional Land Cover Monitoring System for Hindu Kush Himalaya." In Earth Observation Science and Applications for Risk Reduction and Enhanced Resilience in Hindu Kush Himalaya Region, 103–25. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73569-2_6.

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AbstractThe land cover across the HKH region is changing at an accelerated rate due to the rapid economic growth and population pressures that are impacting the long-term sustainability of ecosystems.
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Wu, T., and L. T. Zhan. "Influence of Atmospheric Pressure on Methane Emissions from Earthen Landfill Covers." In Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2, 85–92. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2224-2_11.

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"Inside Front Cover." In Pressure Garments, cp1. Elsevier, 1995. http://dx.doi.org/10.1016/b978-0-7506-2064-2.50005-2.

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Humphries, Gavin, Ken Malloy, Bill Maurer, and Jay Smith. "Inside Front Cover." In Managed Pressure Drilling, xiii. Elsevier, 2008. http://dx.doi.org/10.1016/b978-1-933762-24-1.50003-6.

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"Inside Front Cover." In Low Blood Pressure, ifc1. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4831-6692-6.50002-9.

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"Inside Back Cover." In Low Blood Pressure, ibc1. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4831-6692-6.50022-4.

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"Inside Back Cover." In High Blood Pressure, ibc1. Elsevier, 2013. http://dx.doi.org/10.1016/b978-1-4831-6696-4.50027-1.

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Conference papers on the topic "Pressure cover"

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Yang, Sha, Qi Dong, and Liucheng Zhang. "Failure Analysis of Vessel Cover Under Internal Pressure Impulse." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84042.

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When under explosion, the cover of an explosion containment vessel will bear a much higher intensity of impulse loading because of the reflection and superposition of the shock waves, especially in cylindrical vessels. To assure the integrity of the explosion containment vessel closure, a thick steel plate is often used as the cover, while in the supporting part of the shell thickening or reinforcement is also needed. Tooth locks are widely used as a quick-actuating closure. Experiments and numerical simulations were conducted to examine the protective performance of the tooth lock covers. The deformation and failure results agree well with the experimental data. Three types of covers with different number of teeth are calculated. Main factors and weak spots are analyzed with the experimental data and the simulation data. This study may help in the designing of explosion containment vessels and evaluating the protective performance of vessel covers.
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Tijsseling, Arris S., Jose G. Vasconcelos, Qingzhi Hou, and Zafer Bozkuş. "Dancing Manhole Cover: A Nonlinear Spring-Mass System." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93086.

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Abstract Dancing manhole covers are an intriguing and curious phenomenon but extremely dangerous for road vehicles as well as pedestrians. They are reported worldwide after heavy rainfall in urban environment. Stormwater systems are overloaded with running water containing large entrapped air pockets for which manholes form an escape route. However, heavy lids cover the manholes and they are supposed not to move. An attempt is made to understand the physics behind dancing manhole covers by means of simple spring-massdashpot modeling. The ingredients are liquid slugs, air pockets, and fluid-structure interaction.
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Yang, Sha, Qi Dong, Liucheng Zhang, Jiahe Feng, and Rongxi Hu. "Study of the Flow Field in Cylindrical Vessel." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93171.

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Abstract A tooth-lock cover is a kind of convenient closure used in explosive containment vessels. But in experiments, it is found that a small amount of explosive exploded in cylindrical vessels could cause severe deformation to the tooth-lock covers. In some situations, the cover would even be blown out of the vessel with severe distortion. The spreading and superposition of the shock waves in the cylindrical vessel is studied in this paper. Impulse is chosen as the evaluation parameter instead of the peak pressure because of the reflection and superposition of the shock waves. The piston method is used to calculate the impulse and the result is verified in 8-tooth cover vessels. This method can evaluate the intensity of the shock wave loaded on the cover. It would be useful in the optimization of the explosion containment vessels.
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Tijsseling, Arris S., Jose G. Vasconcelos, Qingzhi Hou, and Zafer Bozkuş. "Venting Manhole Cover: A Nonlinear Spring-Mass System." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21084.

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Abstract Manholes are vertical shafts connecting underground sewers with street-level terminals. They are covered by heavy lids. During periods of heavy rainfall, the air column in the upper part of the manhole may be compressed to such high level that the lid moves up. Of course, this is a dangerous situation for pedestrians and road traffic. Bolting the lid may provide a solution to the problem, but it is known that air pressurization underneath can result in structural damage. A simple model is proposed to describe the lifting of the lid (manhole cover). When the lid moves up, air is allowed to escape so that the lifting pressure decreases and the lid moves down, whereupon the air pressure increases again. This repetition might lead to the realistic phenomenon of the dancing manhole cover. Since the model is strongly nonlinear, interesting dynamic behavior is expected.
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Zhang, Liucheng, Qi Dong, Sha Yang, Jiahe Feng, and Rongxi Hu. "Investigation on the Protection of the End Cover of the Cylindrical Containment Vessel." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93147.

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Abstract The cover of a cylindrical explosion containment vessel would suffer an extremely intense impact because the shock wave and blast products would converge at the cover area. To reduce the impact of shock waves to the cover, cases with aluminum foam placed at the end of the vessel and in the interior of the cylindrical portion are studied by numerical simulation and experiment. The result shows that aluminum foam located at the end of the vessel can have a great effect on the protection of the cover because it can absorb the energy of the shock wave that has spread to the end of the vessel. Aluminum foam located in the interior of the cylindrical portion would have a negative effect on the protection of the cover because it would reduce the distance between the charge and the cylindrical portion, the effect of which is more significant than the effect of energy absorption. These results can contribute to the design of cylindrical explosion containment vessels.
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Ciechanowski, Ata. "NSF/ANSI 14: Third Party Certification for High Density Polyethylene (HDPE) Pipe." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78080.

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NSF/ANSI Standard 14 (NSF 14) was developed in 1965 to establish a standard for the testing and certification of plastic materials for both toxicological health effects as well as performance. At the time of introduction, NSF 14 covered pipe and fittings for only potable water applications and a small number of plastic materials, i.e. polyvinyl chloride (PVC), acrylonitrile-butadiene-Styrene (ABS) and polyethylene (PE). Over the 46 years since its development and introduction, NSF 14 has evolved into a plastic standard that is no longer restricted to potable water. It now covers a wide variety of applications such as DWV (drain, waste and vent), sewer, natural gas, industrial applications and reclaimed water. In addition, it covers a wide variety of materials such as polypropylene (PP), HDPE, Polyamide (PA), cross-linked polyethylene (PEX) and polysulfone (PPSU). This paper will specifically cover third party certification for HDPE pipe. It will address material, performance and quality control requirements.
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Jain, Rahul. "Use of Limit Load Analysis for Design of Pressure Vessel Cover." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78111.

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This paper explores the use of limit load analysis methods for the design of a pressure vessel manway cover as per the ASME boiler and pressure vessel code guidelines. The results of elastic and limit load finite element analysis are discussed for the design. The concept of reference volume consideration along with linear elastic finite element analysis to determine the lower bound limit load has been explored and the results are compared with the non-linear elastic-plastic limit load analysis.
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Nagata, Satoshi, and Toshiyuki Sawa. "Load Factor Based Calculation for Gasketed Flange Connection With Cover Plate Subjected to Internal Pressure." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-94049.

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This paper deals with the behavior of a gasketed flange connection with a cover plate subjected to internal pressure. A calculation method to obtain the bolt force and the gasket reaction changes due to internal pressure using a load factor is introduced and the equations to obtain the load factor for the gasketed flange connection with cover plate using a simplified model are shown. By using 3 inch flange connection with cover plate a spiral gasket inserted, an experimental test is carried out and bolt force changes are measured due to internal pressure. The changes of the bolt force and the gasket reaction due to internal pressure are estimated by the load factor based calculation. Finite element analysis is also performed. The calculation results and the experimental ones are compared one another. It is demonstrated that the calculated bolt force change shows fairly good agreement with the experimental test results. This shows the proposed method may be applicable for the design calculation considering the sealing performance of the connection. When the required gasket stress is given to achieve the target tightness in the operating condition, the appropriate initial bolt preload can be determined by using the proposed method.
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Bakaldin, V. I., V. I. Kashirin, V. V. Petrov, V. G. Fedosov, and G. V. Fedosova. "Design and Manufacturing of VVER-1500 Reactor Vessel Principal Problems and Ways of Their Solution." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-94032.

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The principal design problems of VVER-1500 reactor vessel and its cover are reviewed in this report. A wide range of preliminary studies carried out permitting to solve principal design and manufacturing problems of the vessel and rector cover within the framework of the draft design: • minimization of overall dimensions, • sustentation of principle possibility to provide tightness of the reactor main seal, • process work-out of the vessel, reactor cover and bottom with provision of manufacturing, • design of the reactor vessel support structures. The main attention is payed to the aspects of manufacturability of the reactor vessel and its cover in design dimensions with provision of required mechanical properties and their transportability to the constructing site. It’s required to carry out experimental work to prove manufacturing technology and to ensure mechanical properties of the following: • cover; • nozzle zone shells; • supporting shell; • bottom. To confirm construction efficiency during design life-time (60 years) the principal design approaches should be worked out on a test bench. Taking into account the complexity of the construction and restrictions of full-scale simulation, experimental confirmation of reactor vessel and cover on photoelastic epoxide resin models should be performed. Moreover, strength and life-time of threaded connection parts of the reactor main seal shall be confirmed on full-scale models.
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Wu, Tsu-Te, William E. Jones, and Mark A. Phifer. "Quasi-Static Analysis for Subsidence of Stacked B-25 Boxes." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71537.

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This paper presents a quasi-static technique to evaluate the structural deformation of the four stacked B-25 boxes subjected to the static loads of overlaying soil and to determine the effect of corrosion on the deformation. Although the boxes are subjected to a static load, the structural responses of the boxes vary with time. The analytical results indeed show that the deflection, buckling and post buckling of the components of the stacked boxes occur in sequence rather than simultaneously. Therefore, it is more appropriate to treat the problems considered as quasistatic rather than static; namely, the structural response of the stacked boxes are dynamic but with very long duration. Furthermore, the finite-element model has complex contact and slide conditions between the interfaces of the adjoining components, and thus its numerical solution is more tractable by using explicit time integration schemes. The analysis covers the three corrosion scenarios following various time lengths of initial burial under an interim soil cover. The results qualitatively agree with expected differences in deformation for different degrees of corrosion subsidence potential reduction that can be achieved.
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Reports on the topic "Pressure cover"

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Bodie, Mark, Michael Parker, Alexander Stott, and Bruce Elder. Snow-covered obstacles’ effect on vehicle mobility. Engineer Research and Development Center (U.S.), November 2020. http://dx.doi.org/10.21079/11681/38839.

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The Mobility in Complex Environments project used unmanned aerial systems (UAS) to identify obstacles and to provide path planning in forward operational locations. The UAS were equipped with remote-sensing devices, such as photogrammetry and lidar, to identify obstacles. The path-planning algorithms incorporated the detected obstacles to then identify the fastest and safest vehicle routes. Future algorithms should incorporate vehicle characteristics as each type of vehicle will perform differently over a given obstacle, resulting in distinctive optimal paths. This study explored the effect of snow-covered obstacles on dynamic vehicle response. Vehicle tests used an instrumented HMMWV (high mobility multipurpose wheeled vehicle) driven over obstacles with and without snow cover. Tests showed a 45% reduction in normal force variation and a 43% reduction in body acceleration associated with a 14.5 cm snow cover. To predict vehicle body acceleration and normal force response, we developed two quarter-car models: rigid terrain and deformable snow terrain quarter-car models. The simple quarter models provided reasonable agreement with the vehicle test data. We also used the models to analyze the effects of vehicle parameters, such as ground pressure, to understand the effect of snow cover on vehicle response.
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Sturzenegger, Germán, Cecilia Vidal, and Sebastián Martínez. The Last Mile Challenge of Sewage Services in Latin America and the Caribbean. Edited by Anastasiya Yarygina. Inter-American Development Bank, November 2020. http://dx.doi.org/10.18235/0002878.

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Access to piped sewage in Latin America and the Caribbean (LAC) cities has been on the rise in recent decades. Yet achieving high rates of end-user connection between dwellings and sewage pipelines remains a challenge for water and sanitation utilities. Governments throughout the region are investing millions in increasing access to sewage services but are failing in the last mile. When households do not connect to the sewage system, the full health and social benefits of sanitation investments fail to accrue, and utilities can face lost revenue and higher operating costs. Barriers to connect are diverse, including low willingness to pay for connection costs and/or the associated tariffs, liquidity and credit constrains to cover the cost of upgrades or repairs, information gaps on the benefits of connecting, behavioral obstacles, and collective action failures. In contexts of weak regulation and strong social pressure, utilities typically lack the ability to enforce connection through fines and legal action. This paper explores the scope of the connectivity problem, identifies potential connection barriers, and discusses policy solutions. A research agenda is proposed in support of evidence-based interventions that have the potential to achieve higher effective sanitation coverage more rapidly and cost-effectively in LAC. This research agenda must focus on: i) quantifying the scope of the problem; ii) understanding the barriers that trigger it; and iii) identifying the most cost-effective policy and market-based solutions.
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Schmidt-Sane, Megan, Tabitha Hrynick, and Eva Niederberger. Community Resilience: Key Concepts and their Applications to Epidemic Shocks. Institute of Development Studies (IDS), January 2021. http://dx.doi.org/10.19088/sshap.2021.003.

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The COVID-19 pandemic has exposed long-standing social inequalities and vulnerabilities, with the most disadvantaged and marginalised groups bearing the greatest health, social, and economic burdens. Beyond documenting these vulnerabilities, there is a need to mitigate them and support the resilience of marginalised communities. ‘Community resilience’ can bolster community capacity to cope with the pressures of various shocks; this brief explores how its concepts can be applied to epidemics. It reviews the grey and academic literature on different approaches to community resilience. It covers 1) terminology, 2) lessons from practice, 3) the context of community resilience, 4) a systems approach, and 5) key human and social capacities. Social justice, inequality, equity, and fairness are highlighted as themes in need of further development for resilience as it relates to epidemic preparedness and response. This brief was developed for SSHAP by IDS (led by Megan Schmidt-Sane with Tabitha Hrynick) with Anthrologica (Eva Niederberger).
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Schmidt-Sane, Megan, Tabitha Hrynick, and Eva Niederberger. Community Resilience: Key Concepts and their Applications to Epidemic Shocks. Institute of Development Studies (IDS), February 2021. http://dx.doi.org/10.19088/sshap.2021.027.

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The COVID-19 pandemic has exposed long-standing social inequalities and vulnerabilities, with the most disadvantaged and marginalised groups bearing the greatest health, social, and economic burdens. Beyond documenting these vulnerabilities, there is a need to mitigate them and support the resilience of marginalised communities. ‘Community resilience’ can bolster community capacity to cope with the pressures of various shocks; this brief explores how its concepts can be applied to epidemics. It reviews the grey and academic literature on different approaches to community resilience. It covers 1) terminology, 2) lessons from practice, 3) the context of community resilience, 4) a systems approach, and 5) key human and social capacities. Social justice, inequality, equity, and fairness are highlighted as themes in need of further development for resilience as it relates to epidemic preparedness and response. This brief was developed for SSHAP by IDS (led by Megan Schmidt-Sane with Tabitha Hrynick) with Anthrologica (Eva Niederberger).
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Schmidt-Sane, Megan, Tabitha Hrynick, and Eva Niederberger. Community Resilience: Key Concepts and their Applications to Epidemic Shocks. Institute of Development Studies (IDS), January 2021. http://dx.doi.org/10.19088/sshap.2021.026.

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The COVID-19 pandemic has exposed long-standing social inequalities and vulnerabilities, with the most disadvantaged and marginalised groups bearing the greatest health, social, and economic burdens. Beyond documenting these vulnerabilities, there is a need to mitigate them and support the resilience of marginalised communities. ‘Community resilience’ can bolster community capacity to cope with the pressures of various shocks; this brief explores how its concepts can be applied to epidemics. It reviews the grey and academic literature on different approaches to community resilience. It covers 1) terminology, 2) lessons from practice, 3) the context of community resilience, 4) a systems approach, and 5) key human and social capacities. Social justice, inequality, equity, and fairness are highlighted as themes in need of further development for resilience as it relates to epidemic preparedness and response. This brief was developed for SSHAP by IDS (led by Megan Schmidt-Sane with Tabitha Hrynick) with Anthrologica (Eva Niederberger).
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