While a great portion of the scheduling literature focuses on time-based criteria, the most important goal of management is maximizing the profitability of the firm. In this paper, the net preset value criterion is studied taking account of linear time-dependent cash flows in single machine and flow shop scheduling problems. First, a heuristic method is presented for the single machine scheduli...

Travel and tourism are considered the most popular form of individual enjoyment in the countries of origin of the visitors. Despite this fact, the consequences of the steady growing tourism are often criticised by the citizens of these same countries. The ephemeral nature of the tourism phenomenon is a cause of insecurity; moreover, it is often subject to misleading, emotional and even ideologi...

While a great portion of the scheduling literature focuses on time-based criteria, the most important goal of management is maximizing the profitability of the firm. In this paper, the net preset value criterion is studied taking account of linear time-dependent cash flows in single machine and flow shop scheduling problems. First, a heuristic method is presented for the single machine scheduli...

Iran including attractive places and high potential for tourism (external and internal) and investing on tourism industry including social and economic effects leading to constancy of tourism areas. Unfortunately, despite high capacity of developing tourism in our country, this capacity has not recognized well and has not utilized for development of Iran. The special factors influence on transi...

The phenomenon of owning and visiting a second home is broadening beyond tourism due to the increase in remote working multi-local living – people multiple residences. To understand people, places, mobility linked homes its implications society better, new complementary data sources are needed provide timely adequate information on temporal patterns changes use. Big have been used research, but...

One of the central goals of mathematical epidemiology is to predict disease transmission patterns in populations. Two models are commonly used to predict spatial spread of a disease. The first is the distributed-contacts model, often described by a contact distribution among stationary individuals. The second is the distributed-infectives model, often described by the diffusion of infected indi...

Tourism began when time began. Babylonian money-traders travelled for business, the Egyptian Queen Hatshesput took a cruise along the east coast of Africa and the British aristocracy took Grand Tour of Europe with Thomas Cook in the nineteenth century. Tourism is about experiences, whether exploring an unfamiliar culture, shopping, lying on a beach or enjoying sport in far-flung places — or a l...