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Страница 1 от 40 резултата
Unclogging a pipe: potassium channel pinball.
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Synthesis and application of hybrid polymer composites based on silver nanoparticles as corrosion protection for line pipe steel.
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A facile method was developed to synthesize in high yield dispersed silver nanoparticles (AgNPs) with small particle sizes of less than 10 nm. Silver nitrate was reduced to silver nanoparticles by p-chloroaniline in the presence of polyoxyethylene maleate 4-nonyl-2-propylene-phenol (NMA) as a
Real-time contaminant detection and classification in a drinking water pipe using conventional water quality sensors: techniques and experimental results.
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Accurate detection and identification of natural or intentional contamination events in a drinking water pipe is critical to drinking water supply security and health risk management. To use conventional water quality sensors for the purpose, we have explored a real-time event adaptive detection,
Glutathione-gated potassium efflux as a mechanism of active biofilm detachment.
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Biofilm detachment often has detrimental effects such as pipe obstruction and infection, yet the detachment mechanisms underlying dispersal remain largely unknown. In this study, a stress response mechanism known as glutathione-gated potassium efflux (GGKE) was evaluated as an active detachment
Scanning electron microscope evidence for bacterial colonization of a drinking-water distribution system.
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The surfaces of water distribution mains and suspended particulate matter from drinking water were examined by using scanning electron microscopy to investigate the nature and extent of association of microorganisms with these surfaces. In addition, X-ray energy-dispersive microanalysis was used to
Stability Indicating Reverse Phase HPLC method for estimation of Rifampicin and Piperine in Pharmaceutical Dosage Form.
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BACKGROUND
High performance liquid chromatography is an integral analytical tool in assessing drug product stability. HPLC methods should be able to separate, detect, and quantify the various drug-related degradants that can form on storage or manufacturing, plus detect any drug-related impurities
Corrosion of iron by iodide-oxidizing bacteria isolated from brine in an iodine production facility.
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Elemental iodine is produced in Japan from underground brine (fossil salt water). Carbon steel pipes in an iodine production facility at Chiba, Japan, for brine conveyance were found to corrode more rapidly than those in other facilities. The corroding activity of iodide-containing brine from the
Alternative poultry litter storage for improved transportation and use as a soil amendment.
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Transportation of poultry litter out of nutrient limited watersheds such as the Illinois River basin (eastern Oklahoma) is a logical solution for minimizing phosphorus (P) losses from soils to surface waters. Transportation costs are basedon mass of load and distance transported. This study
Investigations into the survival of Pseudomonas aeruginosa in poloxamer-iodine.
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Laboratory investigations were conducted to study potential mechanisms for prolonged survival of Pseudomonas aeruginosa in poloxamer-iodine (PxI). P. aeruginosa organisms isolated from PxI and adapted for growth in distilled water or found as part of a mixed microbial population from water in a
Regulation of skeletal muscle Ca2+ release channel (ryanodine receptor) by Ca2+ and monovalent cations and anions.
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The effects of ionic composition and strength on rabbit skeletal muscle Ca2+ release channel (ryanodine receptor) activity were investigated in vesicle-45Ca2+ flux, single channel and [3H]ryanodine binding measurements. In <0.01 microM Ca2+ media, the highest 45Ca2+ efflux rate was measured in 0.25
Evaluation of physico-chemical characteristics of groundwater of Company Bagh pumping station and its six distribution points in old Jammu City, India.
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To assess water quality of Company Bagh pumping station and its six distribution points, viz. Parade Ground, Mohalla Paharian, Purani Mandi, Malhotrian Street, Raghunathpura and Hari Market in old Jammu city of India, water parameters viz. temperature, turbidity, pH, electrical conductivity, free
Early tertiary age of pitchstone in the northern black hills, South dakota.
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A block of pitchstone in the northern Black Hills, South Dakota, is Paleocene in age, according to potassium-argon dating of biotite and fission-track dating of zircon in the sample. These data invalidate published suggestions that the age is much younger. The pitchstone is not extrusive in its
Simulating conservative tracers in fractured till under realistic timescales.
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Discrete-fracture and dual-porosity models are infrequently used to simulate solute transport through fractured unconsolidated deposits, despite their more common application in fractured rock where distinct flow regimes are hypothesized. In this study, we apply four fracture transport models--the
Potassium:rubidium ratio in ultramafic rocks: differentiation history of the upper mantle.
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The increase in K:Rb ratio with decrease in potassium content found in basaltic rocks does not seem to apply to ultramafic rocks. The ratios in a series of alpine ultramafic rocks and ultramafic inclusions in basals and kimberlite pipes are about 200 to 500-significantly lower than those in oceanic
Elemental composition at different points of the rainwater harvesting system.
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Entry of contaminants, such as metals and non-metals, into rainwater harvesting systems can occur directly from rainfall with contributions from collection surfaces, accumulated debris and leachate from storage systems, pipes and taps. Ten rainwater harvesting systems on the east coast of Australia
Най-пълната база данни за лечебни билки, подкрепена от науката
- Работи на 55 езика
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- Разпознаване на билки по изображение
- Интерактивна GPS карта - маркирайте билките на място (очаквайте скоро)
- Прочетете научни публикации, свързани с вашето търсене
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