The storage of thermal energy in a trapezoidal aluminum enclosure via melting PCM phase change material is studied. Experimental observations and numerical simulation are made to examine the process for paraffin wax. development LHTES: latent heat system promising alternate option manage growing imbalance consumption supply. Successive Rubitherm-RT35 designed when it heated from one side frame ...

Cuticular waxes act as a protective barrier against environmental stresses. In the present study, we investigated developmental and genotypic variation in wax formation of cabbage lines, with a view to understand the related morphology, genetics and biochemistry. Our studies revealed that the relative expression levels of wax biosynthetic genes in the first-formed leaf of the highest-wax line r...

Cuticular waxes of plant and organ surfaces play an important role in protecting plants from biotic and abiotic stress and extending the freshness, storage time and shelf life in the post-harvest agricultural products. WRI1, a transcription factor of AP2/SHEN families, had been found to trigger the related genes taking part in the biosynthesis of seed oil in many plants. But whether WRI1 is inv...

The bifunctional wax ester synthase/acyl-coenzyme A:diacylglycerol acyltransferase (WS/DGAT) is the key enzyme in storage lipid accumulation in the gram-negative bacterium Acinetobacter calcoaceticus ADP1, mediating wax ester, and to a lesser extent, triacylglycerol (TAG) biosynthesis. Saccharomyces cerevisiae accumulates TAGs and steryl esters as storage lipids. Four genes encoding a DGAT (Dga...

Montan wax origins from ancient plant which leads a long and slow way towards becoming lignite thousands of years ago, their composition is very complex. Crude montan wax is obtained after organic solvent extraction from lignite, then deresined wax is acquired by cooling the extracted solvent toluene, last refined wax called S wax could be made after a series oxidation process, which can be use...

Heavy organics deposition is a common problem in oil industry, especially in oil production, transportation and processing. Wax or solid paraffin series are examples of heavy organics that deposit. Precipitation and crystallization of wax causes major difficulties in different processes. Based on multi-solid theory, a basic model is modified in this paper for wax precipitation in different oils...

To understand the nutritional condition and feeding history of Antarctic krill during winter, Euphausia superba and E. crystallorophias were collected by MOCNESS during July–August 2001 in Maguerite Bay southeast of Adelaide Island. Total lipid, lipid classes, fatty acids, fatty alcohols and sterols were analyzed in animals among several life stages. Lipids in seston and major copepods represen...

The morphogenesis of the composite epicuticular wax coverage and regeneration ability of the upper wax layer in Nepenthes alata pitchers were studied using a cryo-scanning electron microscopy. Examination of pitchers of different ages revealed six stages in the wax coverage development. In the first stage, wax crystals resemble those found recently in mature pitches of N. dicksoniana and N. ven...

This paper briefly presents how investment casting wax was developed, with a summary of structure, categories of investment casting wax available, properties and wax pattern production. Possibilities of improving the recyclability of the wax are briefly discussed.