جستجوی مقالات مرتبط با کلیدواژه « life cycle » در نشریات گروه « جغرافیا »

The traditional activity of sericulture in Iranian culture and civilization, the need to maintain and continue it by utilizing different strategies linked to systematic market changes, such as the life cycle, is considered a way to activate, increase productivity, and gain competitiveness. Study was conducted in order to monitor sericulture activities in rural areas of Ramyan County. This study is descriptive and analytical in nature, and the sample population consists of 65 activists in the industry in the city that has been selected for the study. It was purposeful to select samples for experts, and selection for the local community was random. To analyze the data, we used the sum of mean scores, Friedman test, one-way analysis of variance, and t-test in SPSS software environment and ArcGIS to prepare the map. Based on comparing the current situation to the predicted average for growth and development of the business (T-value = 3), sericulture business has a numerical average of 2.11 at the end of the lower stages. In terms of development and growth, it is in the conflict phase. In addition, it is well known for its presence in regional markets, production in the traditional style, irregular planning, efforts to revive the sericulture, and the colorful role households play in marketing and preparing raw materials. Furthermore, examining the relationships between the life cycle components of this business can demonstrate the availability of environmental capital and its competitive advantages.

In this study we have used the daily mean data from the Modern Era Retrospective Analysis for Research and Applications version 2 (MERRA2) assimilated data. From the MERRA2 data, zonal wind and temperature were obtained at 10hPa from 01 January 1979 to 04 June 2020.The temperature averaged around the polar cap for latitudes north of 60°N. This is a good measure of the overall temperature in the polar vortex.  Investigation of the polar temperature and zonal-mean zonal wind at 10hPa, is detected 19 and 13 major and minor SSWs events, respectively. According to the shows a rapid increase from 201.6K on 12 January to 253.4K on 23 January 2009 (∆T=51.8K). This is the largest increase in the polar temperature per 11-day in the entire MERRA-2 data set starting from January 1979 to June 2020. In this study life cycle of major SSWs is defined by dividing it into five periods. Onset (the first day of maximum zonal-mean zonal wind is reduced), growth (from onset day to zero day), maturation (from zero day to minimum zonal-mean zonal wind), decline (from minimum value to decay day) and decay (the first day of the easterly wind reversal to westerly) of typical SSWs. The result shows the shortest and longest growth periods, with 6 and 37 days, respectively, were recorded in the cases of January 6, 2013 and January 23, 1987. The longest maturation period, with 17 days of continuity, is dedicated to the warming of January 23, 1987. The longest decline period in this statistical period is 26 days, which is related to the warming of January 24, 2009. The shortest and longest life cycle in this statistical period are dedicated to cases on February 1, 2017 and January 23, 1987, respectively.

Many approaches and strategies have been taken into consideration in order to overcome the development bottlenecks and challenges for employment development in rural areas. Tourism development is one of the programs in the field of tourism resettlement. Creating resorts is a practical way to achieve sustainable tourism development and the key to creating of a fun and meaningful ecotourism experience that in many parts of the world offers unique opportunities for rural development. This section deals with the history, culture and rituals of a country. that This form not only promotes employment, local economy development and sustainable tourism formation in the domestic dimension, but also in the external dimension, such as transferring culture and history, acquainting foreign tourists with ritual customs and advertising at no cost and recognition. Most of the world will follow from that such a country. Some believe that the opening up of resorts can play an important role in diversifying the rural economy within the tourism industry and view it as a means to stimulate national economic growth by overcoming underdeveloped ideas and improve the standard of living of local people. Indeed, the importance of tourism in the economic, social, political and cultural dimensions has encouraged many countries to invest and use all their capacities in this area.What is certain is that outsourcing, as a complementary economic function, flows alongside other manufacturing and service activities at the rural and local level, since all businesses in this world follow a particular form or a form that It describes their lives from beginning to end. On the basis of this life-cycle model, this article seeks to answer these questions: After a decade of operating resorts, especially in the study area, what kind of businesses are this? Are they at a stage in their life cycle?And what is their position in the market? Because it is believed that the life cycle model is a good tool for introducing new businesses to the market, adopting the right policies, understanding of the rate of return on investment and financial investment, it is the right tool to promote product behavior in a particular market. One of the different strategies is related to systematic market changes.

This is a descriptive-analytical article that has been done using library and field methods. In this first step, by analyzing domestic and foreign literature and experiences, the most important criteria and explanations of the life cycle of resorts in economic, social, physical and environmental dimensions were identified in 4 categories (onset, conflict, growth and maturity). The follow-up was evaluated using the opinions of 30 experts (including rural development professors from universities in Golestan province and tourism experts from government departments) and 20 landowners who were purposefully sampled. Finally, one-way ANOVA, Tukey's Significance Difference (HSD) and Levon's test were used to analyze the data in SPSS software.

The results showed that the highest average score related to life cycle of resorts in the study area was from experts' point of view about conflict stage with 34.22% and the lowest rate was related to maturity stage with 11%. In other words, according to experts, this type of business is in the process of conflict. Whereas for the local community, the highest score in the life cycle process of the residences was related to the start stage with 38.76% and the lowest to the maturity stage with 15.83%. In fact, to the local community, boomerang resorts are in their early stages. The results of the Tukey test for categorizing homogeneous subsets also show that the two stages of involvement and growth are from the experts' point of view have the highest average. Most percentages are located on an independent floor. This difference is due to differing views of groups on employment, lack of infrastructure, system planning, policy making, raw materials supply, institutional support, sales of technology products and services. In addition, the analysis of the life cycle determinants of the resorts in the Turkmen Saharan region revealed that there is a significant difference between the three stages of starting, engaging and growing these types of businesses from the perspective of the sample community, while this difference is not visible at maturity. Accordingly, the 20 canopy resorts in the study area have considerable distance to reach their maturity stage.

Resettlement resorts are examples of locally owned small scale businesses that play an important role in environmental, economic, social and cultural reform of rural communities, with less pressure on the natural and human environment. Complementary economic performance flows alongside other manufacturing and service activities at the rural and local levels and can be a tool for economic development in local communities that has become common in rural tourism at the country level in recent decades, thus updating the infrastructure, Communication, Institution, Application of New Technologies, Attention to Development and Research.

The concept of life cycle has been regarded by scientific society as a scientific discussion for planning, managing tourism productions and destinations, analyzing and specifying mobility mechanism of tourism development, reflecting internal forces and external parameters of development, and behavioral pattern of tourism development system. Considering behavioral pattern of tourists in tourism destinations and level of destination attractiveness, one can analyze the chronological changes through the model. The aim of the present study was to evaluate stages of tourism development in Boyer-Ahmad according to Butler life cycle model. Accordingly, evaluation of stages of tourism development in the region was performed using a descriptive-analytical method and experts and people survey. The sample size was 195 people which was estimated by the PASS software at the certainty level of 99%. The instruments of the study included a researcher-made questionnaire consisting of 37 items the reliability of which was confirmed 0.93 by Cronbach’s alpha test. The obtained results demonstrated that Boyer-Ahmad is in tourism development based on Butler model and from the viewpoints of experts and inhabitants of Boyer-Ahmad; the development is a newly starting one.

In Iran the issue of occurring natural disasters, particularly mesoscale convective systems. They are important on one hand, because of their increasing intimidations and causing damages and on the other hand, because of their increasing abundance, time of duration, and happening. Therefore life cycle, constituton condition and mesoscale convective systems features in west of Iran using satellite and extention area index and thresholds of brightness temperature 221 and 243 K have been studied. After their statistic analysis, based on mesoscale convective system importance, life and daily cycle, behavior parameters, and synoptic conditions of this system life cycle were analysed. Most of the systems have been formed in southeastern Iraq and in western Zagros hillsides. Wile puberty stages (the maturity) and their expandings were increased with the height increase; in turn, declining of the systems began by passing Zagros chain mountains. The system extention area at the system life cycle starting increases with a smooth process; whereas the reduction process of the system extention area at the declining stage was severe and sudden.

Mountains are the main sources of turbulence and change in the shape of atmospheric flows, and they can cause airflow upward as well as clouds formation and rain through productive mechanisms such as upslope condensation and convection. They also have an important effect on regional and world precipitation turbulence (Banta, 1990; Barros & Lettenmaier, 1994), and can cause severe incidents such as destructive floods (Pastor, Gomez, & Estrella, 2010).
Previous researchers have done numerous studies on mountainous region weather and climate, and cause of precipitation phenomenon using different methods such as numerical modeling of airflow and satellite images. Using RegCM model, Insel, Christopher, Poulsen and Ehlers (2009) have studied the effect of Andes Mountains on convection, precipitation and humidity transformation in South America. They showed that Andes Mountains have lots of effects on humidity transfer between Amazon basin and central Andes, deep convention processes and precipitation across South America through low–level jet (LLJ) and topographical blocking from Pacific Ocean.
Zagros mountain range located in west of Iran plateau is among vast mountain ranges that locates in path of zonory flows with its south-north expansion and can affect those flows.
Therefore, the present study aims to investigate different factors affecting mesoscal convective systems from Zagros heights, and analyze their life cycle dynamic conditions using brightness temperature threshold, area expansion and RegCM4 numerical modeling.
Material and This study was done in an area of about 220000 km2 in west of Iran including Kermanshah, Kurdistan, Hamadan, Khuzestan, Lorestan, Kohgiloyeh and Boyer Ahmad, Ilam, and cheharmahal and Bakhtiari provinces. Using satellite images obtained from infrared band of Meteosat geostationary satellite, GOES and GMS, the mesoscal convective systems and their life cycle were identified.
Regarding that Inoue, Vila, Rajendran, Hhamada, Wu and Machado (2009) proved if we use one colder or warmer threshold, both initiation and dissipation phases may not indicate the life cycle, in this study, brightness temperature threshold of 224 K (Volasco & Fritsch, 1987) and 243 K (Machado, 1998) were used for identifying and analyzing systems life cycle. The researchers have tried to choose some days for this study over which mesoscal convective systems have been made and spent their life cycle without merger or split.
By transfering these systems to GIS environment using area expansion index (∆E) whose validation and viability have been confirmed by Vila, Machado, Laurent, and Velasco (2008) its life cycle was verified (eq. 1).
∆E=(1 δA)/(A δt) (1)
A = the system area in a given time (Tir

Today the role of tourism in developing villges is considered as a main method for releaving the levels of sustainability in different aspects of social, economic and environmental; but it is noticable that the process of assesment of levels of sustainability in touristic villages entails selection of variables and models that are capable to reveal real conditions of villages and their sustainalbility in different stages of development. Ghale Chayee touristic axis in Ajabshir County include 9 touristic villages that changed due to the enterence of tourists and should be studied. This research is applied research that has been done with the aim of evaluating sustainability in Ghale Chayee touristic axis villiges, showing the location of villages in different phases using Tourist life cycle model and finally investigating the relationship of sustainablility with phases of life cycle model. This research has been done with the approach of descriptive- analytical and method of surveying. The population include residents of 9 villages and tourists entering to this area. For collecting data 200 people from local society and 200 people from tourists has been selected randomly as a sample size and by using Cochran formula. Content validity of questionnaires from viewpoint of experts and professors calculated well and stability of questionnaire calculated 92% for local society and 90% for tourists using Cronbach's alpha formula. Data after collecting, has been analyzed using Barometer Sustainability Model, Tourist life cycle model and Kendall test. The results of implementation of Barometer Model showed that all villages are in average and potential level of sustainablility. Also the results of life cycle model revealed that village Gozlujeh with 55% and Yengjeh with 523% are in development stage and the rest of the villages are in involvement phase. Also based on the results of Kendall test, there is a significant positive correlation between different levels of sustainability and rural location. It is more in economic sustainablity and involvement phase. Therefore, in order to utilize the capacity of tourism to achieve sustainable development of rural areas to provide required facilities and infrastructure to attract maximum tourists.

The present study aims to rank and assess the life cycle of tourism sample regions in the tourism center of West Islamabad. Moreover, it tries to investigate the status of tourism in these regions according to the concept of life cycle from Butler’s view. The present study is an applied research with the survey and field study methodology. At first, by using Delphi technique, 10 indexes were determined for assessment of the regions. Then, the data from the questionnaires survey were submitted to TOPSIS multi-criteria decision-making techniques, and the sample regions were prioritized. According to these prioritizations, the sample region of Ryjab with 0/634 i SL waslocated in the first place and other regions were in next priorities. Afterwards, the sample regions were submitted to Butler Model to determine the status of regions. Accordingly, the regions with low level of i SL such as Karand Mirage, Shiyan Fire Temple, and Mersad Canyon, passed the discovery stage in life cycle, and the proper management situation must be prepared to enter these regions into the development phase. Other regions were located in the next life cycles. Identifying the development stages of these regions plays an important role in management decisions and the permanent development of these regions.