Search Results - "leakage"

To address the issues of leakage and spontaneous combustion in goaf areas of the Y-type ventilation working face pillarless extraction, as well as the adjacent old goaf areas, a combined method of energy potential measurement and tracer technology was used to detect air leakage in the sealing walls...

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Accurate characterization of pipeline leakage by capturing time-lapse features and pathway orientations using ground penetrating radar (GPR) is crucial for optimizing the operational efficiency of water supply system and reducing water resource losses. However, achieving spatiotemporal leakage imagi...

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E-waste refers to electronic products that are of no use, not working properly, and either close to or at the end of their “useful life”. Companies generate large amounts of e-waste when they replace old and outdated IT hardware with new technologies. Disposing of this e-waste is not so simple, as...

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Estimating leaks in urban gas distribution systems is crucial for reducing greenhouse gas emissions from fugitive losses and mitigating costly waste. This study aimed to use a simplified methodology to estimate pipeline leakage in gas distribution systems and validate these estimations against estab...

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Leakage control in deep oil and gas wells is challenging, often leading to increased costs. In this study, a low-density, high-pressure resistant and thermally stable epoxy resin (BEPD) was synthesized by ring opening of 2,2-bis(4-epoxypropoxyphenyl) propane cured with 1,8-diaminonaphthalene. The ma...

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Aim: to present the difficulties of the choice of surgical tactics in case of esophagoenteroanastomosis suture failure after gastrectomy.Key points. In patient K., 55 years old, after a planned surgical intervention involving gastrectomy for stomach cancer, leakage of the esophagoenteroanastomosis s...

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In the field of long-distance ventilation, the attenuation law of air supply from the wind duct is of great significance for the air volume regulation and energy saving of the local ventilation system. In order to improve the local ventilation efficiency of the 2201 long-distance transportation road...

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Background: Because it allows germs to enter the root canal system, microbial leakage is a primary cause of endodontic failure. The goal of various root canal obturation procedures is to create a hermetic seal that stops microbes from penetrating. Materials and Procedures: The ProTaper Universal sys...

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Background and Objectives: Bioceramic-based root canal sealers need more evidence for proving its sealing ability. The objective of this in vitro study is to measure the leakage of extracted root canals and analyze the interfacial adaptation of the bioceramic material to canal walls. Methods: 60...

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IntroductionCowpea is among the most important plants of the legume family, being a good source of protein, fiber, and essential nutrients. Cowpeas are also cost-effective and have high nutritional value. It has been shown that priming seeds with zinc can improve seedling vigor, growth, and overall...

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Background. Colorectal cancer is one of the most common cancers in the world, and surgery remains the only curative treatment. However, post-operative complications impact patients’ outcomes and quality of life. Identifying risk factors for these complications is essential for improving surgical ou...

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Poor seedling establishment and total plant biomass reduction in contaminated soils, decrease the efficiency of phytoremediation techniques. In this study, the effects of different types of seed pretreatments (such as salicylic acid, and potassium nitrate) and three concentrations of lead (0, 200, 4...

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ObjectivesThis study aimed to evaluate the interface between a calcium silicate cement (CSC), Biodentine and dental adhesives in terms of sealing ability.Materials and MethodsMicroleakage test: 160 standardized class II cavities were prepared on 80 extracted human molars. The cavities were filled wi...

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Abstract Background Subtotal cholecystectomy is an effective surgical method to decrease the risk of complications for gallbladders that are difficult to remove. However, there is a risk for postoperative refractory bile leakage through the gallbladder stump. Here, we report a new management techniq...

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The need to model the effect of the assembly environment on the neutronic data has been felt since Smith’s topical article on assembly homogenization techniques. Indeed, simply homogenizing the cross sections using the spatial distribution and energy spectrum of the neutron flux calculated in a sing...

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Leakage of refined oil pipeline can cause environmental pollution and threaten the safety of residents' lives and properties, making leakage monitoring and identification critical. This study establishes a leakage monitoring and identification model for undulating buried pipelines, generates pr...

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The article is devoted to the study of the seals of fixed joints. The mechanisms of leakage occurrence at different values of roughness and pressure on the joint surfaces are considered taking into account the real contact area. The estimation of deformations and forces in the contact zone was carri...

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Abstract Background Bile leakage after hepatectomy still causes relatively serious problems, and some types of bile leakage are intractable. Case presentation We report a case of postoperative isolated bile duct leakage managed successfully by combination therapy of percutaneous transhepatic portal...

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Aim: to determine the differences in IL-6 and CRP levels among groups of dengue infection patients with and without plasma leakage. Methods:a cross-sectional study was conducted in adult patients with dengue infection who were treated at Cipto Mangunkusumo and Persahabatan Hospital between 1 March 2...

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Introduction. Efficient leak detection methods and gas flow metering are analyzed. The work objective is to select an automatic system of methods providing the improvement of the quality of leakage monitoring and gas flow metering in gas pipelines.Materials and Methods. The following techniques for...

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