نتایج جستجو برای: solid paraffin
تعداد نتایج: 203374 فیلتر نتایج به سال:
the potential indoor air impacts of burning candles have drawn increased attention in recent years. burning paraffin waxes itself, regardless to wick and the essence, produce some allergens and even carcinogenic compounds. further biorefining of petroleum paraffin wax with proper bacteria is one of the proposed resolutions to decrease the health threat. therefore in this study iranian heavy cr...
background: the phase change materials (pcms) have the appropriate properties for controlling heat strain. one of the well-known pcms is paraffin. this study aimed to design the cooling vest from the cheap commercial paraffin compound and evaluation of its effectiveness under laboratory hot conditions. methods: the cooling vest was made of the polyester fabric and it had 17 aluminum packs. the ...
Paraffin (called kerosene in North America and other parts of the world) is the most commonly used fuel in non-electrified dwellings worldwide. It is especially popular in Africa and South Asia. Although paraffin offers many advantages-especially its comparatively low cost to produce-it poses two major risks of injury. First, paraffin poisoning is common, either through ingestion or through ...
The excellent properties of graphene phase change nanocomposite made it have potential application value in the field heat storage materials, which was expected to achieve integration transfer and storage. In order enhance thermal performance paraffin energy storage, structure models n-octadecane three kinds graphene/n-octadecane composites were established. Molecular dynamics method used study...
The necessity of pure water is rising each day, causes are population, industrial and agricultural expansion, worldwide. Due to the increasing population world fresh will become more serious problem in coming days. Hence, people around have work on different efficient methodology generate potable water. Solar still one among these methods acting device. In this paper, a review using PCM with ot...
Here we describe methods for creating tissue-mimicking ultrasound phantoms based on patient anatomy using a soft material called gel wax. To recreate acoustically realistic tissue properties, two additives to gel wax were considered: paraffin wax to increase acoustic attenuation, and solid glass spheres to increase backscattering. The frequency dependence of ultrasound attenuation was well desc...
Background and Aim: Angiogenesis is essential in the progression and metastasis of solid tumors. It has been proved that increase in angiogenesis within primary solid tumors is actually associated with nodal metastasis and risk prognosis of some malignancies. In contrast, regarding hematologic neoplasms very limited studies have been done. The goal of the present study was to determine MVD (M...
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