نتایج جستجو برای: solid paraffin
تعداد نتایج: 203374 فیلتر نتایج به سال:
Solid deposition, such as the formation of ice on outdoor facilities, the deposition of scale in water reservoirs, the sedimentation of fat, oil, and grease (FOG) in sewer systems, and the precipitation of wax in petroleum pipelines, cause a serious waste of resources and irreversible environmental pollution. Inspired by fish and pitcher plants, we present a self-replenishable organogel materia...
Cellulosic fibrous mats were impregnated with various water-repellent formulations based on reclaimed polystyrene (5, 10, 15, and 20%), alkyd resin (5%), gum rosin paraffin wax (0.5%). The tested for their bursting strength resistance to bending. They also subjected the ring crush test short-span compression test. By increasing concentration of total solid ingredients 20, 25.5%), retention gram...
or irritation. Next she was given a full and heavy meal consisting of bread and plantains only, and kept under observation. Only solids were enjoined for the first twenty-four hours and a strict watch was kept on all motions passed thereafter. From the 25th evening, she was allowed thick curds and on the following day a little milk also. One ounce of liquid paraffin was given in the forenoon of...
Abstract The corrosion performance of phase change materials on stainless steel was studied using single fatty acid, acid/paraffin mixed and acid/paraffin/graphite composite as media. results show that the paraffin graphite to is very small; among them, stearic acid series are least corrosive can be used ideal energy storage medium for heat exchange devices.
background and objective: formalin-fixed paraffin-embedded tissues are a valuable source of dna for molecular studies. we designed and optimized an efficient procedure for dna extraction from formalin-fixed paraffin embedded tissues. materials and methods: seventy three blocks of cervical paraffin-embedded tissues were investigated. dna was extracted using 45 minutes boiling in alkaline solutio...
introduction: nocardia is saprophytic soil bacterium of the actinomycetes families. nocardia has high diversity of species and due to species diversity of nocardia, phenotypic tests are essential for early identification of nocardia species. methods: 155 soil samples from different regions of north khorasan province in iran were collected, including: urban and rural areas. isolation of nocardia...
The induction of paraffin oxidation in intact cells of Pseudomonas aeruginosa was investigated. Oxidation of (14)C-heptane by cell-free extracts of adapted cells showed that the activity of whole cells is a reliable reflection of the synthesis of the first enzyme in the degradation of n-alkanes. Induction was significantly affected by glucose and could be completely repressed by malate. The ami...
In this study, ironwood (Casuarina equisetifolia L.) raw material was used. 1.17 moles of urea-formaldehyde (UF) resin (12.5%), solid paraffin (1.5%) and 10% ammonium chloride solution were added to the fibers. Boards with a density 0.694 g/cm³ produced in MDF production line. The physical mechanical properties boards evaluated. Swelling thickness for 2 24 h 2.53% 6.01%, respectively. Modulus r...
The influence of heat transfer characteristics fluids filled with paraffin core-metallic shell nanoencapsulated phase change material (PCM) on photothermal conversion and storage in a volumetrically heated solar system is numerically analysed. results show that paraffin/Al, paraffin/Au, paraffin/Ag, paraffin/Cu enhance the energy by 68, 73, 92 86 %, respectively as compared water-based Al, Au, ...
BACKGROUND Glucocorticoid receptor (GR) activity plays a role in many aspects of human physiology and may play a crucial role in chemotherapy resistance in a wide variety of solid tumors. A novel immunohistochemistry (IHC) based assay has been previously developed and validated in order to assess GR immunoreactivity in triple-negative breast cancer. The current study investigates the standardiz...
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