SUPPLY OPTIMIZATION OF OBJECTS AND NATURAL TOURIST ATTRACTIONS IN SITU GUNUNG, GUNUNG GEDE PANGRANGO NATIONAL PARK

Situ Gunung Natural Tourism area as part of Gunung Gede Pangrango Natural Park utilization zone is a popular natural tourism destination. Therefore, the assessment on objects and attraction natural tourism attraction of Situ Gunung (ODTWASG) based on the satisfaction of management as the supply and visitors as the demand is essential to identify object and nature attraction that ecologically, socially, and economically need to be improved or maintained by the managers. The assessment results data were then processed and analyzed by using conformity scale method and Importance Performance Analysis (IPA). The results showed that there was one unsatisfying attribute on both parties in economic scale, i.e., the making of suspension bridge. Besides, there were two attributes of economic ODTWASG that have not been managed optimally. Thus, it has not contributed to customer satisfaction, which were food and beverages prices at the food court as well as water tourism object entrance fee. Therefore, ODTWASG supply optimization could focus on these two economic attributes; first, setting and adjusting the attribute of food and beverages prices, and second, improving water tourism quality. Key words: Importance Performance Analysis (IPA), satisfaction, supply and demand

Sub Zoning as a Measure for Water Supply Optimization—Case Study of the City of Nikšić

The drinking water supply of the city of Nikšić, the second largest city in the Republic of Montenegro, is secured from a nearby karstic groundwater resources. Water is transported from two different directions (two sources) into the distribution system. At the end of the distribution system, on the opposite side of water resources, there is a counter tank, as the only storage capacity for leveling the inflow and consumption in the system. However, the interplay of the three vital water supply capacities (two water sources and counter tank) does not meet the requirements of regular supply, to the point where it is necessary to disconnect the tank, from regular operation. The existing system, which operates without leveling space, is fraught with numerous problems, ranging from the appearance of significant temporal and spatial pressure variations, to the inability of delivering the needed quantities to the peripheral parts of the system, in seasonal peaks of consumption. During International project Drinkadria (2013–2016), efforts for solving numerated problems were done. This paper provides an overview of activities on system operation analysis, based on simulation modeling and definition of technical solution, proposed in the form of subzoning. Realization of proposed subzones will put all capacities in the full operation state, with the realization of stable pressures in the system, and with a regular supply of all parts of the system in all predictable modes of consumption.

Memories of the future

With bated breath we follow the fate of the long-suffering law On the prevention of diseases caused by iodine deficiency. What can be expected in terms of improving public health after the adoption and successful implementation of this bill, which provides for the enrichment with iodine of edible salt of extra, higher and first varieties, grinding No. 0 and No. 1? In addition, in the production of bakery products, the recipe of which contains edible salt, the use of iodized salt will become mandatory. According to the experience of many near and far countries, within 23 years from the start of the program of mandatory salt iodization, one can expect a significant (at times) reduction in the incidence of endemic goiter. This trend will not exhaust itself in subsequent years. In the medium term (after about 10 years), a decrease (by half or more) in the incidence of thyrotoxicosis can also be expected in Russia. However, in the short term (57 years), a transient increase in the incidence of thyrotoxicosis in people over 60 years of age is possible, which can be considered a kind of payment for the previous iodine deficiency. The trend towards an increase in the incidence of subclinical and, possibly, manifest hypothyroidism may continue, but this will not be a consequence of an increase in iodine supply. Optimization of iodine intake against the background of mandatory salt iodization should reduce the frequency of transient disorders of thyroid function in newborns and, possibly, congenital hypothyroidism.

Probabilistic Traveling Salesman Problem and Harmony Search Algorithms in Pharmacy Supply Optimization

This paper demonstrates the utilitarian significance of the Probabilistic Traveling Salesman Problem (PTSP) in planning travel routes by companies which provide distribution services for pharmacies, with a particular consideration of variable customer demand. The optimization problem was solved using the Harmony Search (HS) algorithm, thus verifying its utility based on one real instance of PTSP (representing the problem of pharmacy supply reliability) and three tasks from the public TSPLIB library (adjusted to PTSP). As a result of the conducted research, significant utility of the hybrid approach was identified, assuming the combination of HS with popular 2‑opt method, which enabled achievement of good results within acceptable period (in practical applications).