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Showing 3 results for Azizpour
Numerical Simulation of Single Slope Solar Still with Setting Rectangular, Triangular and Wavy Barriers on the Side Walls

Volume 24, Issue 2 (February 2024)
Abstract
Deficiency of potable water has created many problems for human and human society, Therefore, The production of fresh water from saline water is an important issue. One of the method of production fresh water from saline water is the use of solar stills. This paper is the numerical simulation of the conventional solar stills with setting Rectangular, Triangular, Wavy barriers on the left and right walls inside the solar still. Setting barriers causes a change in the pattern of humid airflow in the solar still that it affect water productivity and convective heat transfer rate. Also, changes in the size and number of barriers cause changes it will be in the result. The continuity, momentum, energy and concentration equations are discretized by finite volume method and the results are presented as flow function and concentration and temperature contours. The simulation results show that setting wavy barriers with A=0.01(m) and N=2 at left wall and A=0.075(m) and N=5 at right wall water productivity and convective heat transfer rate can be increased by about 31% and 31.34%.
Analysis of Privilege and Accessibility Level of Olive Crop users to Agricultural Services in Tarom Rural Areas (Zanjan Province)

Volume 26, Issue 4 (Winter 2023)
Abstract
Accessibility to service delivery system effective on the development of agricultural activities is one of the components that guarantee the economic stability of rural areas (especially in providing production support services and creating employment opportunities in the service sector). By this way, the current research was conducted with the aim of analyzing the level of availability and access of olive crop users to agricultural services in the rural area of Tarom. The research method has been quantitative and based on the logical reasoning. The statistical population included all olive producing rural areas (79 rural areas) as well as all olive users (5762 people) in Tarom. With reference to key concept of agricultural services in the research, this was defined in three groups of support, processing, marketing and sales, in the form of 23 indicators. To collect the data related to selected indicators, the library method, documents, statistical reports and phishing technique were used. To summarize the indicators, the factor analysis method with SPSS software was used to determine the weight of the ANP network analysis model in Super Decision. To know the level of enjoyment of agricultural services, Vicor model, Moran's index, hot spots and geographically-oriented distribution were used in ArcGis. Based on the findings, among 79 olive producing rural areas, 28 were fully privileged in terms of having agricultural services while the rest were semi-privileged in terms of accessibility. This situation in the studied area is influenced by the accessibility factor of (rural) points to urban centers and large rural points. In other words, proximity to urban areas and centers with more population has been an advantage for villages fully equipped with agricultural services. This pattern is the outcome of distribution policy and deployment of services based on a population approach instead of a spatial approach, and on the other hand, it is the result of planning to reduce the role of the government and the centralization of some of the services in rural centers and densely populated centers. Of course, the results showed that there is a positive and significant relationship between the availability of agricultural services in rural areas and the economic variables of olive production and cultivation. This means that the proper distribution of the level of agricultural services based on capabilities will lead to the use of agricultural development capacities in rural areas. Therefore, in order to achieve development capacities in rural areas, identifying the existing conditions and developing plans for improvement and proper access to services is the most important steps.
 
Institutionalizing the Regional Network Approach in Development Planning: A Case Study of the “Tarm” Rural Constellation in Zanjan Province

Volume 28, Issue 3 (autumn 2024)
Abstract
The regional network approach endeavors to furnish a platform conducive to the integrated development of rural and urban areas by enhancing the interconnections between these domains. Notwithstanding the extensive research background and the experiences derived from various implementation strategies, the practical application of this approach within the nation has faced significant obstacles and challenges. The current study, employing the Q methodology and concentrating on the developmental agenda of the rural constellation in Tarem, Zanjan province, investigates the essential requirements and priorities pertinent to the regional network approach in the context of national development planning, as perceived by experts, officials, practitioners, consultants, and facilitators associated with the initiative. To this end, the study initially delineates the concourse on the vital requirements necessary for the actualization of the regional network approach through semi-structured interviews and the analysis of extracted sources, subsequently refining these into 31 pivotal factors categorized predominantly into six dimensions: environmental-ecological, structural-institutional, educational, economic, physical-spatial, and social. Subsequently, a cohort of 25 specialists and pivotal stakeholders involved in the project was meticulously chosen through purposive sampling, and they systematically prioritized the derived items utilizing the Q table. The amassed data underwent rigorous analysis employing KADE software, alongside Principal Component Analysis (PCA) and Varimax rotation. In light of the research outcomes, one can assert that there exists a quartet of perspectives concerning the requirements and critical priorities essential for the effective implementation of the regional network approach, which encompass: the enhancement of the village's role and significance within development planning, the transformation of the strategy into a network-oriented plan in rural development planning, the fortification of its operational framework, the allocation of job-generating financial resources towards the network approach's priorities, and ultimately, the consolidation of coordination and synergy among the implementing entities. Conversely, the necessity for capacity building and the empowerment of local communities has been universally acknowledged and accentuated across all four perspectives.

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