Experimental hear transfer coefficients are reponed for a tern ary refri!!:eranr blend compo;,.cl of ~u··~ HCFC-!2~ .. l6'~ HC f( ·:2:2. and :2~'1 HFC ·l.52a. Th~> blend is a possible substnnte for C. f('.1~ in 1·apor compression refrkerarion cyd~s. Two-phas e hear transfer coefficrenr< were determined for the pure blend and CFC'-12. The experiments were conducted over a rna;; flux ran~e of l~....

BACKGROUND/AIMS High viscosity silicone oils are used as tamponade agents to increase the resistance to emulsification; however, this makes the oils more difficult to inject. Increasing the extensional viscosity is one way to reduce emulsification. This study aimed to evaluate how silicone oils with increased extensional viscosity behave in terms of their ease of injection. METHODS The shear ...

Material recycling requires solutions that are technically, as well economically and ecologically, viable. In this work, the technical feasibility to separate textile blends of viscose polyester using alkaline hydrolysis is demonstrated. Polyester depolymerized into monomer terephthalic acid at high yields, while recovered in a polymeric form. After treatment, intrinsic viscosity cellulose decr...

Colour is a key element in the discrimination and matching of textile fibres for forensic purposes. Two aspects of research aimed at developing an autcmated forensic textile fibre matching system by colour computer vision are outlined. The segnentation procedure is described. It is based on a mult{resolution image format and incorporates progressive plan refinement. Filters for building the mil...

The paper is focused on modelling and control of an important textile engineering process: the textile sliver drafting process. This process plays a crucial role in textile production chain because low irregularity of drafted sliver is essential for production of high quality yarn. It is shown that this process can be modelled as a nonlinear time delay system with distributed delays. This model...

Incorporating sustainability into the supply chain is becoming a key priority for many textile and apparel companies. For example, H&M, Patagonia, and The North Face have incorporated various approaches to enhance their levels of sustainable supply chain management. Typical approaches include sustainable product strategy, sustainable investment, sustainable performance evaluation, corporate soc...

The textile industry is one of the industries that generate a high volume of waste water. Strong colour of the textile waste water is the most serious problem of the textile waste effluent. The disposal of these wastes into receiving water causes damage to the environment. With regard to their colour removal by conventional treatment methods lead to severe water pollution, thus developing cost ...

The effects of blend ratio and drug loading content of poly(D,L-lactide) (PDLL)/stearic acid blends on microparticle characteristics and drug release behaviors were evaluated. The blend microparticles were prepared by an oil-in-water emulsion solvent evaporation method for drug delivery of a poorly water-soluble model drug, indomethacin. The microparticles were characterized using a combination...

Blending Nomex® with cotton improves its affordability and serviceability. Because cotton is a highly flammable fiber, Nomex®/cotton blend fabrics containing more than 20% cotton require flame-retardant treatment. In this research, combination of a hydroxyl functional organophosphorus oligmer (HFPO) and 1,2,3,4-butanetetracarboxylic acid (BTCA) was used for flame retardant finishing of the 65/3...