An overview of problems and solutions for components sIn engineering applications, there are various types of boilers such as water tube boilers, fire tube boilers, packaged boiler, fluidized bed combustion boiler, pulverized fuel boiler and waste heat boilers. These boilers are used in different industries such as power plants, paper, and chemical. The present paper […]
Background: Renal colic is a common acute abdomen in the night emergency department, which requires practical nursing to relieve pain. Objective: To probe the clinical Effect of emergency-targeted nursing combined with drugs on renal colic. Methods: Eighty patients with renal colic caused by upper urinary tract stones were chosen and randomly separated into an observation […]
Modern medicine, with all its great advances and having enough tools and equipment, is still unable to fully treat many diseases. Along with new medicine, there have always been traditional treatments with effective and practical instructions. The purpose of this research is to evaluate the anti-inflammatory properties of aqueous extracts and alcoholic extracts of hyssop, […]
Mn(II) complex based on 3-hydroxy naphthoic acid is a new, recyclable and efficient catalyst for the synthesis of quinoline derivatives by the Hantzsch reaction. The one-pot four-component cyclocondensation of dimedone, aromatic aldehydes, acetophenone and ammonium acetate was carried under the conditions of refluxing in DMF at 110ºC. This method offers several advantages such as easy […]
Metals released to the environment may undergo transformations and have a great impact on water environments, public health, and the economy, which should be dealt with legally due to the serious environmental and health effects of wastewater containing heavy metals. In this paper, the aim is to investigate the removal of Cd2+ and Ni2+ from […]
Light olefins, especially ethylene and propylene, are essential intermediates in the petrochemical industry, which are used to produce polyethylene, polypropylene, and other essential products. Olefins can be produced using different processes and raw materials. The method of converting methanol to olefins is one of the processes that has received much attention in recent years. The […]
Magnesium ferrite is a visible light absorber, and when combined with multiwall carbon nanotubes (MWCNTs), it can lead to low electron–hole recombination rates, thus improving its photocatalytic activity. In this work, a novel MgFe2O4/CNTs nanocomposite catalyst has been synthesized via anchoring MgFe2O4 nanoparticles onto MWCNTs surface by a sol–gel and microwave-assisted route. The prepared catalyst […]
Low-carbon steel (LCS) in 0.5 M sulphuric acid is used to check the corrosion resistance performance of Pfaffia paniculata (P. paniculata) root extract. Notably, P. paniculata showed 91% corrosion resistance efficiency at 600 mg/L concentration. The adsorption of this inhibitor follows the Langmuir adsorption isotherm suggesting its monolayer formation on the LCS surface. The potentiodynamic polarization experiments […]
Novel blue pigments were prepared from copper, magnesium, aluminum nitrate solutions and phosphoric acid with pH adjustments (pH 5, 7, 9). The obtained precipitates were heated at 300, 500, and 700 °C for 1 h. The precipitates and their thermal products were estimated with X-ray diffraction (XRD), infrared (IR) spectra, ultraviolet–visible (UV–Vis) reflectance spectra, and L*a*b* color […]
Hexadecylamine-capped PbS nanoparticles were prepared from lead(II) complexes of dibenzyl dithiocarbamate (Dibzydtc) [PbS 1], imidazolyl dithiocarbamate (Imdtc) [PbS 2], 2-oxo-pyrrolidine dithiocarbamate (Pydtc) [PbS 3], diallyl dithiocarbamate (Diallyldtc) [PbS 4], and dihexyl dithiocarbamate (Dihexdtc) [PbS 5], at 120 °C. Powder X-ray diffraction patterns of the PbS nanoparticles are indexed to the face-centered cubic phase. The average particle […]
