Relevant bibliographies by topics / Drainage devices

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

Academic literature on the topic 'Drainage devices'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Drainage devices"

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Noecker, Robert, and Malik Kahook. "Glaucoma Drainage Devices." Techniques in Ophthalmology 4, no. 2 (June 2006): 69–73. http://dx.doi.org/10.1097/00145756-200606000-00007.

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Singh, Parul, Krishna Kuldeep, Manoj Tyagi, ParmeshwariD Sharma, and Yogesh Kumar. "Glaucoma drainage devices." Journal of Clinical Ophthalmology and Research 1, no. 2 (2013): 77. http://dx.doi.org/10.4103/2320-3897.112174.

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Basinsky, A. S. "Drainage surgery for primary open-angle glaucoma: past, present, future." Fyodorov journal of ophthalmic surgery, no. 2 (July 15, 2021): 79–85. http://dx.doi.org/10.25276/0235-4160-2021-2-79-85.

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Relevance. Despite many techniques for reducing intraocular pressure, surgical treatment of glaucoma has limited effectiveness. First, due to excessive scarring of new intraocular fluid outflow pathways and second, antifibrotics medicaments are unable to effectively control wound healing. The use of drainages reduces the risk of excessive scarring in the area of the filtration pad and forms several ways of outflow of intraocular fluid. The review presents the following sections: development history, advantages, disadvantages, surgical technique and promising directions of glaucoma drainage surgery. Purpose. Summarizing data on the possibility of drainage surgery, historical aspects, causes of scarring and methods of dealing with them. Provide data on various modern drainage devices that are used not only in Russia and their effectiveness. Material and methods. To perform the review, we searched for literature sources on the abstract databases E-library, PubMed and Scopus for the period up to and including 2018, using the keywords «glaucoma drainage surgery» (in the E-library database), «anti-glaucoma drainage» and «anti-glaucoma drainage device» (in the PubMed and Scopus databases). Abstracts of conferences were excluded from the review. A total of 40 articles related to the review topic were identified. The beginning of publications on this issue in domestic sources dates back to 1970, and in foreign sources to 1987. Results. The review presents the history of development, advantages, disadvantages of surgical techniques and promising areas of glaucoma drainage surgery. Various models of drainage devices, as well as their specific and non-specific complications are described. The effectivenes of various valves were 70%, with an average decrease in the level of IOP by at least 50% from the preoperative values. At the same time, the risk of an increase in the level of IOP above the target values is about 10% per year, which leads to the fact that after 5 years only in 50% of cases drainage devices function effectively. Therefore, studies of biomaterials, forms and techniques of drainage implantation surgery, new controlled-release antifibrotic drugs can positively affect the long-term effectiveness of glaucoma surgery. Conclusion. The data presented in the literature review allow us to identify the most effective models of drainage devices, their effectiveness, implantation techniques and possible complications. Key words: glaucoma, refractory glaucoma, glaucoma drainage surgery, drainages.
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Toth, Jennifer W., Michael F. Reed, and Lauren K. Ventola. "Chest Tube Drainage Devices." Seminars in Respiratory and Critical Care Medicine 40, no. 03 (June 2019): 386–93. http://dx.doi.org/10.1055/s-0039-1694769.

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AbstractPlacement of a chest tube drains intrapleural fluid and air. The tube should be attached to a drainage system, such as one-, two-, or three-compartment devices, a one-way (Heimlich) valve for ambulatory drainage, a digital system, or a vacuum bottle. The frequently employed three-compartment systems, currently integrated disposable units, allow adjustment of negative pressure or no suction (water seal), and include an air leak meter on the water seal chamber to be used for demonstrating and quantifying air leak. These readings are subjective and prone to interobserver variability. Digital pleural drainage systems offer the benefits of quantification of any air leak and pleural pressure. Indwelling pleural catheters, typically utilized for malignant pleural effusion, can be drained using vacuum bottles. Knowledge of the design and functionality of each device in the setting of an individual patient's specific pleural process facilitates the selection of practical and financially prudent chest tube drainage strategies.
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Oh, Daniel J., Raman Michael, Thasarat Vajaranant, M. Soledad Cortina, and Ellen Shorter. "Resolution of an exposed pars plana Baerveldt shunt in a patient with a Boston keratoprosthesis type 1 without surgery." Therapeutic Advances in Ophthalmology 11 (January 2019): 251584141986855. http://dx.doi.org/10.1177/2515841419868559.

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Patients with a keratoprosthesis often develop complications including glaucoma, requiring glaucoma drainage devices. In most of these patients, glaucoma drainage devices have been shown to be safe and effective. However, occasionally, a glaucoma drainage device in the setting of a keratoprosthesis can lead to conjunctival erosion with mechanical trauma. While repeat surgical intervention may appear necessary, we report a case of a patient who had improved conjunctival erosion and glaucoma drainage device exposure after refitting of a therapeutic contact lens. Therapeutic contact lenses can be used to maintain hydration and decrease exposure while improving cosmesis and refractive error. Complications following keratoprosthesis surgery are an understudied area, particularly regarding glaucoma drainage devices, and we seek to show that careful fitting of therapeutic contact lenses may avoid the risks of repeat surgical intervention.
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Respondek, Zbigniew. "The Problems of Maintenance of Drainage Devices Within Municipal and District Roads." Management Systems in Production Engineering 25, no. 2 (June 1, 2017): 100–104. http://dx.doi.org/10.1515/mspe-2017-0015.

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Abstract The article presents technical aspects of maintenance of proper condition of drainage devices of public roads, and municipal and district roads in particular. The importance of road drainage is discussed, basic surface drainage devices discussed together with their location within the road. With use of actual examples we indicated the typical errors made during repairs and overhauls of the road, that have the consequence of disrupted continuity of drainage or the risk of quick loss of functions of drainage devices. The results of survey of technical condition of roadsides and the drainage device within a selected rural municipality were presented, indicating main problems of road keepers connected with keeping the drainage infrastructure in appropriate condition. The need of growing awareness in planning and designing road investment was indicated in the field of consequences of performing insufficient drainage.
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Reiter, Michael, Ryan Schwope, Kyle Walker, and Abraham Suhr. "Imaging of Glaucoma Drainage Devices." Journal of Computer Assisted Tomography 36, no. 2 (2012): 277–79. http://dx.doi.org/10.1097/rct.0b013e31824afda8.

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Costello, J. E., and U. A. Rassner. "An Update on Programmable CSF Shunt Valves: Identification, MR Imaging Safety and Potential Pitfalls." Neurographics 10, no. 1 (February 1, 2020): 26–32. http://dx.doi.org/10.3174/ng.1900030.

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Programmable shunt valves are commonly used devices for the treatment of hydrocephalus. Unlike fixed shunt valves, programmable devices allow the operator to alter the amount of CSF drainage without the need for shunt revision or valve replacement. With their increased use, many different programmable shunt valves have been developed by various manufacturers; each programmable shunt valve has a distinct radiographic appearance and CSF drainage setting. Because of potential interactions with MR imaging scanners, which can alter programmable shunt valve function, understanding and accurately reporting these devices is essential.Learning Objectives: Identify commonly used programmable shunt valves and understand their CSF drainage settings to enable the detection of device alterations after MR imaging scanning.
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Siewert, Stefan, Wolfram Schmidt, Sebastian Kaule, Stefanie Kohse, Michael Stiehm, Franziska Kopp, Thomas Stahnke, Rudolf Guthoff, Niels Grabow, and Klaus-Peter Schmitz. "Development of a microstent system for minimally invasive glaucoma surgery." Current Directions in Biomedical Engineering 3, no. 2 (September 7, 2017): 779–81. http://dx.doi.org/10.1515/cdbme-2017-0164.

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AbstractGlaucoma is the leading cause of irreversible blindness worldwide. An increased intraocular pressure (IOP) is known as major risk factor. Currently, drainage devices that are implanted by means of minimally invasive glaucoma surgery (MIGS) represent a promising approach for IOP low-ering. Commercially available devices for MIGS suffer from unregulated drainage involving ocular hypotony. Further-more, long term drainage capability of current devices is limited by fibrotic encapsulation processes. Therefore, our group focusses on the development of a valved drug-eluting microstent for MIGS. Within the current work, we developed two alternative injector devices for minimally invasive mi-crostent implantation. Both injector devices were based on a cannula in which the microstent is loaded and a mandrel inside the cannula. Injector device A is designed to push the microstent out of the cannula and injector device B is de-signed to withdraw the cannula above the microstent. Manu-facturing of injector devices was conducted using rapid prototyping. Simplified polymeric microstents were manu-factured from polycarbonate based silicone elastomer. Simulated use was performed in a silicone eye model. The presented injector devices were suitable for minimally in-vasive ab interno microstent implantation into suprachoroidal space. Ongoing miniaturization of the microstent system will allow the use of a 22 G cannula in future ex vivo experiments.
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Sadovnikova, N. N., N. V. Prisich, V. V. Brzheskiy, A. J. Baranov, and A. I. Shilov. "Glaucoma drainage devices in pediatric glaucoma." Modern technologies in ophtalmology, no. 3 (June 20, 2019): 170–74. http://dx.doi.org/10.25276/2312-4911-2019-3-170-174.

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Dissertations / Theses on the topic "Drainage devices"

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Oyelola, O. O. "The use of compost and recycled aggregates in the treatment of runoff pollutants in vegetated sustainable drainage devices such as swale." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/082ceb3a-f311-4f8e-829f-5120b168724a/1.

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Urbanisation, a process associated with industrialisation and development has been characterised by unsustainable impacts such as increased impervious surfaces, increased air pollution, increased use of natural resources, increased volume of surface run-off, decreased quality of surface run-off, and depletion of biodiversity and habitats. The effects of these impacts on the environment include climate change, flooding, erosion, pollution of water bodies, and destruction of aquatic life and biodiversity. Studies have shown that sustainable designs such as Sustainable Drainage Systems (SuDS) would help mitigate some of these effects sustainably. SuDS are natural drainage systems that simulate the natural drainage of a site/catchment and work in harmony to achieve increase in ground infiltration and treatment of runoff; and reduction in flow rates and volume of surface runoff, thereby improving storm water quality, reducing erosion, recharging groundwater, improving biodiversity and ultimately improving sustainability. However, sustainability of SuDS devices are questionable because their component parts involve the use of natural resources i.e. topsoil and gravel. The overall aim of this research was to evaluate the efficacy of the application of recycled/waste materials in performing at least as well as topsoil and gravel in vegetative SuDS, thereby improving water quality and overall sustainability. The materials applied were compost and recycled aggregates. In assessing their efficacy in vegetative SuDS, the risk these materials could pose to water quality was not overlooked but was considered in establishing an ideal model for the treatment of pollutants in vegetative SuDS. Results of this research showed that overall compost and recycled aggregates were able to perform at least as well as gravel and topsoil in vegetative SuDS in terms of characterisation, biofilm and vegetative development, and remediation of runoff pollutants thereby improving the sustainability of vegetative SuDS. Compared to gravel and topsoil, characterisation of compost and recycled aggregates was shown to be less expensive, less time consuming (except for recycled aggregates) and more sustainable, in terms of conserving natural resources. It was deduced that compost would be able to biodegrade organic pollutants in vegetative SuDS in varying conditions, compared to topsoil, thereby improving water quality. Vegetative growth in profiles containing compost were more prolific than those with topsoil alone, indicating that vegetative SuDS containing compost would attenuate stormwater and remediate pollutants by phytoremediation, better than topsoil. Results showed that compost and recycled aggregates performed as well as gravel and topsoil in remediating pollutants, with >98% of pollutants being retained mostly within the growth media, confirming that most pollutants are treated within the growth media of vegetative SuDS devices. This research was able to establish that SuDS components can be as unsustainable as components of conventional drainage systems in terms of their social, economic and environmental impacts; and that recycled materials could perform just as well as conventional materials, whilst improving their sustainability. This research further established that compost and recycled aggregates can be used in vegetative SuDS, such as swales, as literature has shown that the use of compost and recycled aggregates in vegetative SuDS has been limited to compost blankets and socks and substrates for green roofs. Suggestions for other waste materials that can be used instead topsoil and gravel in vegetative SuDS were also made. Results from this research were applied in the development of a swale model for the treatment of pollutants in vegetative SuDS.
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Jia, Neng. "Etude de la carbonatation des dispositifs du drainage profond de l'infrastructure ferroviaire." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1153/document.

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Ce travail s’intéresse au phénomène de colmatage créé par la précipitation de la calcite dans les dispositifs des systèmes de drainage du réseau ferroviaire en particulier des lignes à grande vitesse (LGV). En effet, le colmatage de ces drains peut indirectement affecter la tenue géométrique de la voie. Maintenir les équipements hydrauliques dans leur état de fonctionnement optimal est un enjeu fort pour SNCF Réseau. L’objectif de cette recherche est de déterminer les processus et causes de l’entartrage et sa cinétique, en intégrant l’environnement naturel (géologie) et ferroviaire (matériaux anthropiques) ainsi que les types de dispositifs de drainage. La finalité de cette recherche est un double enjeu industriel: préventif et curatif. Les dysfonctionnements de ces dispositifs que ce soit en pleine voie ou en tunnel entrainent en effet une présence d’eau dans les structures d’assise des voies ferrées pouvant provoquer une dégradation de leurs caractéristiques mécaniques, et à terme induire des défauts de nivellement de rail pouvant mener à des impacts sur les circulations. L’obstruction des dispositifs de drainage par des dépôts carbonatés précipités est une cause majeure de réduction de la fonctionnalité de ces dispositifs sur le RFN : 546,8 km de linéaire de LGV (LN1 à LN6) sont potentiellement sous cet impact. Sur certaines lignes, cet impact est important. Par exemple, on a estimé que sur 78 km (LN2) de linéaire de LGV drainée par un collecteur drainant (CD), que le colmatage des CD lié à la précipitation de dépôts carbonatés pouvait représenter jusqu’à 80 % des cas de dysfonctionnement de drainage. Les techniques actuelles utilisées sont l’hydrocurage ou le marteau piqueur pour les dépôts très durcis mais tous les deux de faible rentabilité au vu du linéaire potentiellement colmaté. Afin de proposer des solutions innovantes de conception ou de traitement adaptées, l’étude des mécanismes en jeu a fait l’objet d’une campagne de mesures de plus de deux ans sur un site pilote de LGV (Chauconin, 77) instrumenté à cet effet permettant l’analyse des paramètres physico-chimiques de l’eau drainée ainsi que celle des dépôts précipités dans leur contexte géologique, géotechnique et hydrométéorologique. Cette approche a été complétée par l’étude de 8 sites complémentaires choisis en pleine voie et en tunnels à l’échelle de RFN et présentant une diversité de contextes environnementaux et ferroviaires. Le modèle hydrogéochimique développé ensuite sur cette base offre la possibilité de reproduire les processus observés sur le site de Chauconin: processus physique (Pluie-Débit) et processus physico-chimique (Modèle Transfert-Réaction), et de quantifier les quantités de dépôts prévisibles à terme dans les dispositifs. Ce modèle conceptuel est basé sur un modèle hydrologique empirique de deux réservoir de terrain en couplant les processus transport et réaction (dissolution – précipitation). Les premières analyses d’eau et de matériaux encaissants sur le site de Chauconin montrent que, en absence d’une nappe drainée, celle-ci est riche en calcium et sulfates. L’analyse fine des matériaux montre qu’une partie des matériaux rapportés utilisés dans la fondation de la plateforme ferroviaire contient du gypse dont la dissolution par l’eau d’infiltration pourrait expliquer la composition de l’eau du drainage. Les eaux sur les sites supplémentaires que soit avec une présence de nappe permanent ou temporelle, sont essentiellement calcium carbonate. La composition de ces eaux est cohérente avec la géologie calcaire. Le modèle développé peut être extensible à d’autres sites ferroviaires comme tunnels. A ce stade de notre travail de recherche, nous proposons donc un outil d’aide à la décision à double objectif : diagnostic du risque de précipitation de calcite et justification du choix des typologies de solutions techniques préventives ou curatives
This thesis focuses on the clogging phenomenon linked to the precipitation of calcite in high-speed line drainage systems (HSL). Indeed, the clogging of these drains can affect the geometric behavior of the track. Maintaining hydraulic devices in its optimal operating condition is a major challenge for SNCF Réseau. The objective of this research is to determine the processes and causes of calcite formation and its kinetics, by integrating the natural environment (geology) and railway context (anthropogenic materials) as well as the types of drainage devices. The purpose of this research has double industrial goals: preventive and curative. The dysfunction of the devices of the HSL drainage systems, whether along the track or in the tunnel, cause the presence of water in the foundation of the tracks, which can lead to a degradation of their mechanical characteristics, and in the long term induce rail levelling that can lead to impacts on traffic. The clogging of drainage devices by precipitated carbonate deposits is a major cause of reducing the functionality of these devices on the French Railway Networks (RFN): 546.8 km of HSL (Line 1 to 6) are potentially under this impact. In some ways, this impact is essential. For example, it has been estimated that over 78 km (HSL 2) of HSL equipped with draining collector, that the clogging of the devices related to the precipitation of carbonate deposits could represent up to 80% of cases of drainage dysfunction. The curent techniques used are the hydrocuring or the jackhammer for very hardened deposits but both of low profitability in view of the potentially clogged kilometers. In order to propose innovative design or treatment solutions adapted to the different site contexts, the study of the mechanisms involved was the subject of a site monitoring lasting more than two years at a HSL pilot site (Chauconin, 77) instrumented for this purpose allowing the analysis of the physico-chemical parameters of the drained water as well as that of precipitated deposits in their geological, geotechnical and hydrometeorological context. This approach was complemented by the study of 8 other complementary sites selected in full-scale of RFN including tunnels under variant geology as well as covering all existing drainage devices in the railway infrastructure.The hydrogeochemical model developed on this basis offers the possibility of reproducing the processes observed on the Chauconin site: the physical process (Rain-Flow) and the physicochemical process (Transfer-Reaction Model) according to their context in order to quantify predictably the deposits in the drainages devices. This conceptual model is based on an empirical hydrology model of two ground reservoir by coupling the processes of transfer and reaction (dissolution - precipitation). The first analysis of water and surrounding materials on the Chauconin site show that, in the absence of a drained aquifer, this drained water is rich in calcium and sulphates. The detailed analysis of the materials shows that some of the reported materials used in the foundation of the railway platform contain gypsum whose dissolution by infiltration water could explain the composition of the drained water. The waters on the additional sites with a presence of permanent or temporal aquifer are essentially calcium carbonate. These drained waters are consistent with their calcareous or Gypsums geology.The developed conceptual model could be expanded to other railway sites as tunnel. At this stage of our research work, we propose a conceptual decision-making tool with two objectives: diagnosis the calcite precipitation and justification of the choice of typologies of solutions
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Faraj, A. "Assessing the performance of combined sustainable drainage and ground source heat devices in a domestic building." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/74d2036b-7ba3-478c-ad78-fd5957464d1c/1.

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A field study of the feasibility and the performance of a sustainable drainage technique combined with a renewable energy device to provide heating in a domestic setting was carried out from March 2008 to November 2010 to acquire practical data about the system’s operation. Among all the sustainable drainage techniques, permeable pavement system (PPS) was selected to be applied in this project since this particular technique can be used for driveways and car-parking hard standings, but more specially they can be designed as a tanked system whereby an impermeable membrane is installed at the bottom of the tank in order to hold the rainwater collected as runoff from hard areas and roofs before releasing it in a controlled manner. The renewable energy device applied in this study is a ground source heat pump system (GSHP), which has been found in previous studies to provide a better performance when installed in wet conditions. Based on this, the PPS and the GSHP with horizontal ground heat exchanger (GHE) were integrated in a 350mm deep reservoir under ‘real life’ conditins. The combined system operated in heating mode in a family–sized, three bedrooms detached EcoHouse at the Building Research Establishment Innovation Park, Watford, UK. Monitoring the combined system included taking measurements of the temperature of the conditioned space, the ground around the PPS/GSHP system, and of the ambient air every 10 minutes. Assessing the performance of the PPS/GSHP system involved investigating the effect of extracting heat via the GHE on the ground temperature, the impact of the PPS/GSHP on the thermal profile of the air above the surface of the reservoir, and computing the PPS/GSHP coefficient of performance (CoP). The thesis includes information about the design of the PPS/GSHP system including the structure of the sub-base, types and size of the used aggregate and stone, the depth of the excavated reservoir amongst others, also the technical problems that materialized, largely due to the fact that the PPS/GSHP was installed and operating under real-life circumstances. Results obtained from the study provided evidence for the workability of the combined system in regards of stormwater management and of providing heat to the EcoHouse. However, monitoring the rainwater stored in the reservoir showed that, due to leakage, the top part of the buried coil was not covered with water. The monitoring also revealed that the rainwater surrounding parts of the coil was, in severe weather, frozen. Moreover, highly significant correlations (p<0.01) were calculated for the ambient air and the ground temperature relationships with the CoP. All of these factors resulted in a 1.8 coefficient of performance being obtained. This low figure was related to the shallow depth of the reservoir since it became clear that its ground temperature was greatly influenced by the ambient air temperature. The study also revealed that the evaporation process was prevented from occurring due to the Inbitex™ composite layer, as a result there was no significant effect on cooling the thermal profile of the air near the surface of the pavement. Furthermore, it was concluded that continuous heat extraction from the ground contributed to an underground temperature drop.
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Raja, Hamran, and Roshan Lee. "Integration of a Drainage Device." Thesis, KTH, Tillämpad maskinteknik (KTH Södertälje), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190025.

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Sander, Jason Andrew. "Mechanical-Empirical Performance of U.S. 50 Joint Sealant Test Pavement." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1176222025.

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Lee, Richard Men Ho. "Assessing flow control and biocompatibility of a novel glaucoma drainage device." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10051042/.

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Glaucoma is a group of optic neuropathies that is the leading cause of irreversible visual impairment worldwide. Studies in the literature have demonstrated that reducing the intraocular pressure (IOP) to ten mmHg or less via medical, laser or surgical approaches can reduce the risk of glaucoma progression. Glaucoma drainage devices (GDDs) that shunt aqueous humour to the subconjunctival space suffer from complications including hypotony (< 5 mmHg), require expertise to insert and are at risk of failure due to fibrous encapsulation around the device which prevents aqueous humour drainage (at a rate of 10% per year). There is therefore a need for a device that can control IOP adequately to reduce glaucoma progression, has a lower failure rate than conventional devices and is easy to insert even by novice surgeons. The aim of this body of work is to develop a novel GDD, the BioChannel® that may fulfil these criteria. This thesis encompasses work performed to assess in vitro protein adsorption and cell adhesion to 3D-printed and hydrogel materials that could potentially be used with our device versus materials used in existing ophthalmic devices. We assessed flow control approaches and mechanisms of outflow resistance that may affect the IOP control of our device using novel microfluidic testing methods. We compared our prototype device to a biocompatible silicone tube used in current GDDs in an in vivo rabbit study. We demonstrated no significant difference in IOP control or inflammatory response on histological analysis between materials assessed. Future developments will revolve around optimising our device design, assessing the biocompatibility response of our preclinical device in a long-term in vivo study before preparation to assess the device in a clinical trial in human subjects.
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Festi, Aparecido Vanderlei. "Estimativa da infiltração e do afluxo devidos à precipitação na rede de esgoto sanitário em município de pequeno porte." Universidade Federal de São Carlos, 2006. https://repositorio.ufscar.br/handle/ufscar/4212.

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Made available in DSpace on 2016-06-02T20:00:16Z (GMT). No. of bitstreams: 1 DissAVF.pdf: 3142723 bytes, checksum: d32fec625d6a407ea812f6bfdadc0c46 (MD5) Previous issue date: 2006-02-28
The main purpose of this work was to identify and to estimate the rainfall derived infiltration and inflow (IADP) into the sewer in a small city and to do an analysis of their influence on this collection system. This work was composed by field measurements on the sewage flowrate output and volume arriving to the Sewage Pumping Plant Station, simultaneously to the collection and measurement of rainfall on the corresponding same urban watershed area of the Borborema, in São Paulo State. The existing methodologies were divided in the follow steps: choosing and characterization of the working field; data collection of the sewage volume and flowrate; collection of the rainfall data; choosing and characterization of the data collected; employment of existing models and methodologies useful to the present available data, in order to derive the underground water infiltration rate and the overflow occurring in the sewage colletion network. The volumetric and percentile IADP were quantified. The constant unitary rate (TUC) was also estimated, by several ways. The results allowed obtaining mathematical formulations to derive the IADP and TUC of the Borborema s sewage network. Such mathematical formulations are suitable to be applied in urban areas of cities of a similar to that of Borborema. It was estimated that the IADP can generate flowrates 2,5 times greater than the sewage flows in dry weather and infiltration rates in the sewage network similar to those adopted for system design. The work allowed to estimate how complex are the infiltration and inflow of stormwater in the sewer network. The methodologies applied were quite simple and may be easily applied in other cities.
O objetivo precípuo desta pesquisa foi identificar e estimar a infiltração e o afluxo devidos da precipitação (IADP) na rede de esgoto sanitário em município de pequeno porte e efetuar uma análise da sua influência no sistema de esgotamento sanitário. Este trabalho foi realizado através da medição em campo de vazão e volume de esgoto sanitário a montante da EEE Estação Elevatória de Esgoto, simultaneamente com a coleta e medição da chuva precipitada na correspondente área urbanizada da bacia hidrográfica da cidade de Borborema/SP. As metodologias empregadas foram divididas nas seguintes fases: escolha e caracterização do local da pesquisa; coleta de dados de vazão e volume dos efluentes de esgotos sanitários e coleta de dados de precipitação de chuva no local do estudo; seleção e caracterização dos dados coletados; aplicação das metodologias e modelagens existentes possíveis de aplicar em função dos dados disponíveis, para a obtenção da taxa de infiltração das águas subterrâneas e da sobrecarga na rede de esgoto sanitário. Quantificou-se o IADP volumétrica e percentualmente. Calculou-se também a taxa unitária constante (TUC), sob diferentes formatos. Os resultados desta pesquisa permitiram a obtenção de equações matemáticas para avaliação da IADP e da TUC do sistema de esgoto da cidade de Borborema que possivelmente poderão ser aplicadas em áreas urbanizadas de outras cidades do mesmo porte. Estimou-se que a IADP pode gerar volumes 2,5 vezes maiores que o volume de esgotos em tempo seco, bem como taxas de infiltração na rede coletora próximas àquelas adotadas para cálculo da rede. O trabalho possibilitou avaliar quão complexos são a infiltração e o afluxo de águas de chuva na rede de esgoto sanitário. Os métodos empregados, tanto de coleta quanto de modelagem, foram muito simples e podem ser aplicados em outras cidades com certa facilidade.
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Ruiz, Adilson Nunes. "Concreto com fresado asf?ltico aplicado em dispositivos de prote??o e drenagem de obras vi?rias." Pontif?cia Universidade Cat?lica de Campinas, 2017. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/925.

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Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo - FAPESP
In view of the large volume of waste generated by the construction industry coupled with the growing understanding of environmental preservation by the population, it was necessary to carry out studies with the firm intention of reusing these wastes. This work focuses on the residues generated in the area of road pavement construction, especially those resulting from the maintenance, restoration and improvement of roads paved with asphalt concrete. As the use of this material is not always carried out in a technical and adequate way, even though several studies are directed to the good technique of using recycled asphalt pavement, this work intends to present another technical form for the application of this important residue, to use in the construction of rigid concrete barriers and in gutters, half wire and gutters. These services normally run within the road works, that is, it aims to keep the material generated within the limits of the generating source. In order to achieve this, studies focused on meeting the technical specifications of the National Department of Infrastructure and Transport (DNIT) and the Department of Roads of the State of S?o Paulo (DER-SP), minimizing the output of milling from the generating source, considering that these public agencies are the main sources of this waste and performers of the services for which it is intended. This study compared the physical characteristics of conventional concrete and concrete with embedded asphalt milling, thus evaluating its technical, economic feasibility and environmental. The study was carried out in concrete with a characteristic compressive strength of 25MPa, intended for road safety elements, and at 20MPa for surface drainage elements. It was observed that the increase of recycled asphalt pavement in the concrete mixture directly influences the mechanical resistance, reducing its resistant capacity. When analyzing the substitution content of recycled asphalt pavement in the mix, it was found that percentages higher than 15% substantially affect the concrete's strength properties. The concrete with recycled asphalt pavement presents less rise and absorption of water by capillarity, as well as less absorption in the test of immersion, important qualities for mixtures that will be destined to the manufacture of structures that will be exposed to the elements or the contact with the water. The use of this residue in the concrete generates reduction in the cost of manufacture, besides providing reduction of the emission of greenhouse gases (CO2). In Brazil, it can be estimated that the use of asphalt milling in the concretes studied, can generate the approximate annual reduction of 270 thousand tCO2, besides saving approximately US$ 97 million/year through the sale of CO2 ("green" income) And the reduction of costs with the acquisition of natural raw materials extracted from deposits (sand and crushed stone), as well as to finance with this amount the construction of approximately 23 thousand popular residences of 40m2.
Tendo em vista o grande volume gerado de res?duos pela ind?stria da constru??o aliado ao fato do crescente entendimento pela popula??o da preserva??o ambiental, fez-se necess?ria a realiza??o de estudos com o firme prop?sito de reutiliz?-los. Este trabalho foca no res?duo gerado na ?rea da constru??o de pavimenta??o vi?ria, principalmente naqueles advindos das obras de manuten??o, restaura??o e melhoria do leito vi?rio pavimentado revestido com concreto asf?ltico. Como a utiliza??o deste material ? realizada nem sempre de forma t?cnica e adequada, mesmo tendo diversos estudos direcionados ? boa t?cnica de utiliza??o do fresado asf?ltico, este trabalho tem a pretens?o de apresentar mais uma forma t?cnica para a aplica??o deste importante res?duo, o de utilizar na constru??o de barreiras r?gidas de concreto e em canaletas, meios fio e sarjetas. Servi?os estes normalmente executados dentro das obras vi?rias, ou seja, visa manter o material gerado dentro dos limites da fonte geradora. Para isso, foram realizados estudos focados em atender as especifica??es t?cnicas do Departamento Nacional de Infraestrutura e Transporte (DNIT) e do Departamento de Estradas de Rodagem do Estado de S?o Paulo (DER-SP) em parte das obras de seguran?a vi?ria e drenagem, tendo em vista que estes ?rg?os p?blicos tem o dom?nio das principais fontes geradoras deste res?duo e s?o executores dos servi?os ao qual se destina. Este estudo comparou as caracter?sticas f?sicas do concreto convencional e do concreto com fresado asf?ltico incorporado, avaliando assim a sua viabilidade t?cnica, econ?mica e ambiental. O estudo foi realizado em concreto com resist?ncia caracter?stica ? compress?o de 25MPa, destinado a elementos de seguran?a vi?ria, e com 20MPa, para os elementos de drenagem superficial. Foi constatado que o incremento de fresado asf?ltico na mistura do concreto influencia diretamente nas resist?ncias mec?nicas, reduzindo sua capacidade resistente. Ao analisar o teor de substitui??o de fresado asf?ltico na mistura, foi constatado que percentuais superiores a 15% afetam substancialmente as propriedades mec?nicas do concreto. O concreto com fresado asf?ltico apresenta menor ascens?o e absor??o de ?gua por capilaridade, bem como menor absor??o no ensaio de imers?o, qualidades importantes para misturas que ser?o destinadas ? fabrica??o de estruturas que ficar?o expostas ?s intemp?ries ou ao contato com a ?gua. O uso deste res?duo no concreto gera redu??o no custo de fabrica??o, al?m de proporcionar redu??o da emiss?o de gases do efeito estufa (CO2). No Brasil, pode-se estimar que o uso do fresado asf?ltico nos concretos estudados, pode gerar a redu??o anual aproximada de 270mil tCO2, al?m de possibilitar economia aproximada de US$ 97 milh?es/ano atrav?s da comercializa??o do CO2 (renda ?verde?) e da redu??o de custos com a aquisi??o de mat?rias primas naturais extra?das de jazidas (areia e pedra britada), bem como financiar com este valor a constru??o de aproximadamente 23mil resid?ncias populares de 40m?.
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Hadačová, Jana. "Zdravotně technické a plynovodní instalace v bytovém domě se zdravotnickým zařízením." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227759.

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This diploma thesis deals with health-technical and gas piping in the asylum building. The topic Rain Water Handling is the theoretical part where the usage of water is discussed according to the legal regulations and its functionality. The computational and project part deals with sewerage, water and gas distribution system in this two floors non-cellar asylum building. This bachelor thesis is written according to Czech and European regulations
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Fu, Shu-Wen, and 傅淑雯. "Modification of Silicone Rubber Membranes via Plasma Induced Graft Copolymerization and Application in Glaucoma Drainage Devices." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/31147516221933368741.

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碩士
國立清華大學
化學工程學系
89
Silicone rubber (SR) membranes were modified via plasma-induced graft copolymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC) to enhance the biocompatibility. The chemical composition of the surface of the pMPC-grafted SR was analyzed using ATR-FTIR and ESCA, while the surface morphologies and cross-sections of the membranes were examined by SEM. The SR surface appeared homogeneously grafted with pMPC. Contact angle analysis revealed that the pMPC-grafted SR films organized more hydrophilic surfaces than the controlled film. The contact angle decreased from 100 degrees to around 20 degrees at last. Tensile tests revealed that the plasma-induced polymerization of pMPC could modify the surface properties of SR without altering its bulk mechanical properties. Furthermore, in vitro tests were performed to evaluate the biocompatibility of the modified SR membranes. In contrast to the controlled SR membrane, the surfaces of the pMPC-grafted SR membranes tend to effectively reduce the adsorption of bovine serum albumin (BSA), suppress the adhesion of platelets and blood cells, and effectively suppress the attachment and proliferation of fibroblasts when the grafted pMPC reaches a certain value (P/Si = 0.034). After then, the pMPC-grafted SR membranes were implanted into the sclera using Zelanian rabbits as animal model. Pathological studies showed a large number of migratory cells tended to embrace the controlled SR membrane. After implanted for three weeks, there was a thick layer of fibrotic tissue ensheathing the Ar-plasma-treated SR membrane, and the thickness of which was about 12.5μm. Marvelously, there was little inflammatory lymphocytes or white blood cells gathering around the pMPC-grafted SR (P/Si = 0.035, 0.067 and 0.096) membranes. The thickness of fibrotic capsule surrounding the pMPC-grafted SR(P/Si = 0.035 and 0.067) membranes was reduced to about 2.6μm, and inapparent fibrosis was observed around the pMPC-grafted SR(P/Si = 0.096) membrane in three weeks. The interaction between the surface of the pMPC-grafted SR and the tissue of the subconjunctiva remained gentle in six weeks. The pMPC-grafted SR (P/Si >0.035) materials are highly promising for the drainage devices in the treatment of glaucoma.
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Books on the topic "Drainage devices"

1

Gandhi, Monica, and Shibal Bhartiya, eds. Glaucoma Drainage Devices. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2.

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Food and Agriculture Organization of the United Nations., ed. Water lifting devices. Rome: Food and Agriculture Organization of the United Nations, 1986.

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Jeremy, Thake, Food and Agriculture Organization of the United Nations., Practical Action (Organization), and IT Power (Organization), eds. Water lifting devices: A handbook for users and choosers. 3rd ed. Rugby: Practical Action Publishing, 2006.

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Gandhi, Monica, and Shibal Bhartiya. Glaucoma Drainage Devices: A Practical Illustrated Guide. Springer, 2019.

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D, Hayes B., and New Jersey. Dept. of Transporation., eds. Evaluation of highway runoff pollution control devices. [Trenton]: New Jersey Dept. of Transporation, 1996.

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(Editor), Peter Fraenkel, and Jeremy Thake (Editor), eds. Water Lifting Devices: A Handbook. Practical Action, 2007.

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Heithaus, Robert Evans, Almas Syed, and Chet R. Rees. Slow and Steady Method for Advancing Devices Through Tight or Tortuous Anatomy. Edited by S. Lowell Kahn, Bulent Arslan, and Abdulrahman Masrani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199986071.003.0059.

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Advancing vascular sheaths, catheters, balloons, stent grafts, or drainage catheters can prove difficult in tight or tortuous anatomy, leading to prolonged procedure and fluoroscopy time. Overcoming the static forces of friction requires greater magnitude of force compared to the kinetic forces of friction. Static forces of friction can result in catheter or device kinking, particularly in tight or tortuous anatomy. By applying slow, steady force (as opposed to multiple isolated applications of force) in a manner described in this chapter, one can advance a device in a slow and steady manner, thus reducing the amount of pain, tissue damage, and potentially fluoroscopy time.
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Fraenkel, Peter, and Jeremy Thake. Water Lifting Devices. A handbook for users and choosers. Third Edition. 3rd ed. Food and Agriculture Organization, 2007.

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Agarwal, Anil, Neil Borley, and Greg McLatchie. General surgery. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199608911.003.0001.

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This chapter covers topics a surgical trainee will find useful. Preoperative assessment covers ASA Grades, NICE guidance, cardiopulmonary exercise testing (CPEX), P-POSSUM. Preoperative medication review covers medications to continue, and medications to be stopped. Consent details test of materiality, Montgomery vs Lanarkshire Health Board, adults who lack capacity, best interests, Advanced Directive, Living Will, Lasting Power of Attorney, Independent Mental Capacity Advocate (IMCA), Gillick Competency, delegation of consent, and consent forms. Surgical site infections (SSIs), NICE guideline on antibiotic prophylaxis, and venous thromboembolism (VTE). The WHO surgery checklist explains team brief, sign in, time out, sign out, debrief. Types of skin preparation—chlorhexadine, betadine. Absorbable, non-absorbable sutures, synthetic, biological meshes. Enhanced recovery, day surgery. Diathermy, ultrasound devices, lasers. Duty of candour. Open and close midline laparotomy incision, induction of pneumoperitoneum, diagnostic laparoscopy. Lichtenstein, totally extraperitoneal (TEP), transabdominal preperitoneal (TAPP), Lockwood, Lothiesen, McEvedy femoral hernia repair, ventral and incisional hernia repair, excision biopsy, abscess incision and drainage, ingrowing toenails.
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Evaluation of the multi-chambered treatment train, a retrofit water-quality management device. Middleton, Wis: U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Book chapters on the topic "Drainage devices"

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Brandt, James D., Naama Hammel, Cecilia Fenerty, and Tanya Karaconji. "Glaucoma Drainage Devices." In Surgical Management of Childhood Glaucoma, 99–127. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-54003-0_7.

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Cullen, Cheryl L. "Glaucoma Drainage Devices." In Visual Prosthesis and Ophthalmic Devices, 173–90. Totowa, NJ: Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-449-0_12.

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Bhartiya, Shibal, Parul Ichhpujani, and Monica Gandhi. "The Glaucoma Treatment Paradigm: An Overview." In Glaucoma Drainage Devices, 1–6. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_1.

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Kumar, Suresh, and Sahil Thakur. "AADI Technique." In Glaucoma Drainage Devices, 67–72. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_10.

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Senthil, Sirisha. "Glaucoma Drainage Devices in Special Cases." In Glaucoma Drainage Devices, 73–77. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_11.

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Patyal, Sagarika, Santosh Kumar, and Suneeta Dubey. "Combined Surgeries: Glaucoma Drainage Devices and Cataract." In Glaucoma Drainage Devices, 79–83. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_12.

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Bhadauria, Madhu. "Glaucoma Drainage Devices (Ahmed Glaucoma Valve) in Penetrating Keratoplasty-Associated Glaucoma." In Glaucoma Drainage Devices, 85–91. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_13.

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Dubey, Suneeta, Nidhi Gupta, Madhu Bhoot, and Shalini Singh. "Combined Surgeries: Glaucoma Drainage Devices with Boston KPro." In Glaucoma Drainage Devices, 93–99. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_14.

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Albis-Donado, Oscar Daniel, and Alejandra Hernandez-Oteyza. "Glaucoma Drainage Devices in Children." In Glaucoma Drainage Devices, 101–7. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_15.

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Barella, Kleyton, and Vital Paulino Costa. "Modifications of Surgical Techniques in Glaucoma Drainage Devices." In Glaucoma Drainage Devices, 109–16. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-5773-2_16.

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Conference papers on the topic "Drainage devices"

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Tavakolian, Kouhyar, Bozena Kaminska, and Teimour Maleki Jafarabadi. "Novel Micromachined Valved Glaucoma Drainage Devices." In Conference Proceedings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. http://dx.doi.org/10.1109/iembs.2006.260421.

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Tavakolian, Kouhyar, Bozena Kaminska, and Teimour Maleki Jafarabadi. "Novel Micromachined Valved Glaucoma Drainage Devices." In Conference Proceedings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. http://dx.doi.org/10.1109/iembs.2006.4398916.

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Dettmar, Joachim, Bernhard Rietsch, and Uwe Lorenz. "Performance and Operation of Flushing Devices - Results of a Field and Laboratory Study." In Ninth International Conference on Urban Drainage (9ICUD). Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40644(2002)291.

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Neng, Jia, Tassin Bruno, Deneele Dimitri, Koscielny Mathilde, Prevot François, and Calon Nicolas. "Clogging of Drainage Devices in Railway Infrastructure: Site Instrumentation and Water Systems." In Fourth Geo-China International Conference. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784480113.013.

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Morrison, Paul, Maxwell Dixon, Arsham Sheybani, and Bahareh Rahmani. "Predicting Failures of Molteno and Baerveldt Glaucoma Drainage Devices Using Machine Learning Models." In 4th International Conference on Computer Science and Information Technology (COMIT 2020). AIRCC Publishing Corporation, 2020. http://dx.doi.org/10.5121/csit.2020.101610.

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The purpose of this retrospective study is to measure machine learning models' ability to predict glaucoma drainage device (GDD) failure based on demographic information and preoperative measurements. The medical records of sixty-two patients were used. Potential predictors included the patient's race, age, sex, preoperative intraocular pressure (IOP), preoperative visual acuity, number of IOP-lowering medications, and number and type of previous ophthalmic surgeries. Failure was defined as final IOP greater than 18 mm Hg, reduction in IOP less than 20% from baseline, or need for reoperation unrelated to normal implant maintenance. Five classifiers were compared: logistic regression, artificial neural network, random forest, decision tree, and support vector machine. Recursive feature elimination was used to shrink the number of predictors and grid search was used to choose hyperparameters. To prevent leakage, nested cross-validation was used throughout. Overall, the best classifier was logistic regression.
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Cheng, Yuan. "Lateral Seepage Flow between Low Impact Development Drainage Devices and the Underground Water Level." In Low Impact Development International Conference (LID) 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41099(367)124.

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Nejadi, Siavash, Stephen M. Hubbard, Roman J. Shor, Ian D. Gates, and Jingyi Wang. "Optimization of Placement of Flow Control Devices under Geological Uncertainty in Steam Assisted Gravity Drainage." In SPE Thermal Well Integrity and Design Symposium. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/193364-ms.

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Park, Hyunsu, Simon John, and Hyowon Lee. "Low-cost rapid prototyping of liquid crystal polymer based magnetic microactuators for glaucoma drainage devices." In 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2016. http://dx.doi.org/10.1109/embc.2016.7591656.

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Kyanpour, Mohammad, and Zhangxing Chen. "A New Approach for Designing Steam Splitters and Inflow Control Devices in Steam Assisted Gravity Drainage." In SPE Heavy Oil Conference-Canada. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/165487-ms.

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Vachon, G. P., W. Klaczek, P. J. Erickson, D. C. Langer, D. Booy, and A. Baugh. "Use of Flow Control Devices (FCDs) to Enforce Conformance in Steam Assisted Gravity Drainage (SAGD) Completions." In SPE Canada Heavy Oil Technical Conference. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/174416-ms.

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