نتایج جستجو برای: topographic factors
تعداد نتایج: 1090566 فیلتر نتایج به سال:
abstract previous studies on willingness to communicate (wtc) have shown the influence of many individual or situational factors on students’ tendency to engage in classroom communication, in which wtc has been viewed either at the trait-level or situational level. however, due to the complexity of the notion of willingness to communicate, the present study suggests that these two strands are ...
River length has been the particular interest of people. Topographic data, which are obtained from field survey or digitizing from topographies, can serve as ideal data source for river length calculating. The topographic data are vector-based data, which represent river entities as polygonal line. Depending on data scale, rivers are represented in topographic data as single-line (narrow) or do...
In this study, Vanak catchment because of high sensitivity to landslide was selected. Then with geological, topographic maps and field survey, Landslide hazard map was prepared using GPS as dependent variables. A total of 110 landslides were mapped in GIS out of which 77 (70%) locations were chosen for the modeling purpose and the remaining 33 (30%) points were used for the model validation. Th...
We examined patterns of shrub species diversity relative to landscape-scale variability in environmental factors within two watersheds on the coastal flank of the Santa Ynez Mountains, California. Shrub species richness and dominance was sampled at a hierarchy of spatial units using a highpowered telescope from remote vantage points. Explanatory variables included field estimates of total canop...
Recent developments of optical space sensors enable us to use high resolution space images for topographic mapping. Geometric and radiometric resolution are the major factors for identification of objects in space images. Panchromatic and pan-sharpened images of IKONOS and QuickBird, and panchromatic OrbView-3 image are investigated in this study. The feature extraction is performed by manual a...
the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...
The Chinese government aims to deal with poverty by 2020 for people living in ethnic and rural regions, including mountainous ethnic regions with the highest concentration of poverty and chronic poverty. Based on a sustainable livelihood Framework, five capitals and 33 evaluation indices of livelihood were built, and 13 counties’ resources of the Aba Tibetan and Qiang Autonomous Prefecture were...
qualitative data to construct theories ‘grounded’ in the data themselves...” (Charmaz 2006, p.2). According to Glaser and Strauss (1967) Grounded Theory Methods (GTM) represent a rigorous set of practices for exploring a new domain or a domain which lacks a dominant theory. However, Grounded Theory (GT) is not just a set of procedures to be followed in a study, but an approach which supports th...
In experience-based (or case-based) reasoning, new problems are solved by retrieving and adapting the solutions to similar problems encountered in the past. An important issue in experience-based reasoning is to identify diierent types of knowledge and reasoning useful for diierent classes of case-adaptation tasks. In this paper, we examine a class of non-routine case-adaptation tasks that invo...
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