Our research work was based on the re-use of industrial water in industry, the realization has been carried out in practice. We used the method: Reduction of industrial waste water by using serial and parallel methods which based on MINLP algorithms. This method is very effective and provides significant savings the re-use of industrial water.
COBISS.SI-ID: 19596310
Corrosion resistance, biocompatibility, improved osteointegration, as well the prevention of inflammation and pain are the most desired characteristics of hip replacement implants. In this study we introduce a novel multi-layered coating on AISI 316LVM stainless steel that shows promise with regard to all mentioned characteristics. The coating is prepared from alternating layers of the biocompatible polysaccharide chitosan and the non-steroid anti-inflammatory drug (NSAID), diclofenac. Electrochemical methods were employed to characterize the corrosion behavior of coated and uncoated samples in physiological solution. It is shown that these coatings improve corrosion resistance. It was also found that these coatings release the incorporated drug in controlled, multimechanism manner. Adding additional layers on top of the as-prepared samples, has potential for further tailoring of the release profile and increasing the drug dose. Biocompatibility was proven on human-derived osteoblasts in several experiments. Only viable cells were found on the sample surface after incubation of the samples with the same cell line. This novel coating could prove important for prolongation of the application potential of steel-based hip replacements, which are these days often replaced by more expensive ceramic or other metal alloys.
COBISS.SI-ID: 19591446
The model glycoside compound quercetin-3-O-rutinoside (rutin) has been subjected to subcritical water within the temperature range of 120 °C to 220 °C and the hydrothermal degradation products were analyzed. Two kinetic models describing the degradation of this compound in two different atmospheres (N2 and CO2), used for pressure establishment in reactor, have been developed and compared. Reaction was considered as successive one with three irreversible steps.
COBISS.SI-ID: 29993767
This study proposes a new concept and a new metric for multi-criteria evaluation of sustainable systems. The new metric, termed “sustainability profit”, is composed of economic, environmental and social indicators. Since all of these are expressed by monetary terms, the different criteria are now merged, and a multi-objective optimization problem can be reduced to a single-objective one. The new concept for measuring sustainability is based on micro-economic (company’s viewpoint) and on wider macro-economic perspectives (combined government’s and company’s viewpoint). The concept and metric presented are illustrated by three examples of supply networks including a large-scale biorefinery supply network. The obtained results give the insights into sustainable technologies from the overall sustainability viewpoint, and also evaluate the stimulations from governments in the form of subsidies and taxes for deployment of (un-)sustainable systems. The results also indicate that this metric provides good compromise solutions between economic, environmental and social pillars of sustainability.
COBISS.SI-ID: 20089366
This contribution presents a multi-objective Mixed-Integer Linear Programming (MILP) synthesis of a dynamic supply-network under uncertainty applied to food industry. The previously-developed multi-objective model for achieving energy self-sufficiency by integrating renewables into companies` supply-networks has now been extended to account for the dynamic consideration of variable supply and demand over the year, for uncertainties related to products% demand and sun radiation, and for multi-objective optimisation, in order to obtain the most sustainable company`s supply-network. The sustainable synthesis of a company`s network is performed regarding the integration of renewables such as biomass and other wastes, and solar energy. The obtained solutions are those reflecting maximal profit, reflecting constantly-changing dynamic market conditions, accounting for several uncertain parameters, and protecting the environment.
COBISS.SI-ID: 17775126