نتایج جستجو برای: refractory gold
تعداد نتایج: 140726 فیلتر نتایج به سال:
However, the conventional gold recovery process is cyanidation, due to the recent environmental laws; researchers are looking for alternative methods for the recovery of gold. Furthermore, the copper anode slime is one of the most important secondary sources of gold (about 1200 ppm). So, the main objective of the current work is gold separation from copper anode slime as a rich secondary source...
Oxide materials such as Al2O corundum has a great influence on the mechanical and oxidation properties of refractory or refractory materials. In this paper, the effect of Al2O3 powder density, apparent porosity, linear shrinkage, and oxidation resistance of SiC composite refractory materials is investigated. Meanwhile, the compressive and flexural strengths were investigated before and after he...
purpose: to evaluate the effect of intravitreal triamcinolone acetonide (ivt) reinjection on clinical and optical coherence tomographic (oct) features in refractory diabetic macular edema (dme). methods: in an interventional case series, all ivt-treated patients enrolled in a previous clinical trial (45 subjects), were recalled for performing a new ophthalmologic examination and oct. suitable e...
purpose: to evaluate the effect of intravitreal triamcinolone acetonide (ivt) on clinical, angiographic, and optical coherence tomographic parameters in refractory diabetic macular edema (dme). methods: in a double-masked placebo-controlled randomized clinical trial, 88 eyes of 61 patients with dme refractory to previous laser therapy or not suitable for such treatment were included in the stud...
objecive prolonged and uncontrolled refractory status epilepticus (se) is a life-threatening medical emergency in children (1,2,3). there is no consensus on the optimal therapy for refractory status epilepticus (1). the aim of this study was to develop a new method for treating patients with refractory status epilepticus. materials & methods ten children with refractory status epilepticus in mo...
Lamotrigine (LTG), a newly developed antiepileptic drug (AED), is efficacious in treating refractory epilepsy. This study was designed to evaluate the efficacy and safety of LTG as add-on therapy in 40 children with refractory epilepsy. The trial was an open-labeled prospective study in children with drug-resistant epilepsy aged
Cardiac disease is the main cause of death in both forms of thalassemia; thalassemia major (TM) and thalassemia intermedia (TI). Pulmonary hypertension (PH) is one of the cardiopulmonary morbidities with high mortality that, if not treated, may trigger right-sided heart failure and premature death. PH is defined as a mean pulmonary artery pressure of ≥25 mmHg at rest or ≥30 mmHg during exercise...
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